* [misc]progress:  [Phase 1 of 3] Setting up.
* * * [misc]progress:  [1/2] Preparing points
* * * [misc]progress:  [2/2] Setting up program.
* [misc]progress:  [Phase 2 of 3] Improving.
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (71 enodes)
* * [misc]simplify:  iters left: 4 (121 enodes)
* * [misc]simplify:  iters left: 3 (215 enodes)
* * [misc]simplify:  iters left: 2 (369 enodes)
* [exit]simplify:  Simplified to (- (+ (+ (* x2 (+ (- x1 x2) (+ x3 x4))) (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1))) (- (* x3 (- (- (+ x2 x1) (- x3 x4)) (* x4 x2))) (* (+ x2 x3) x1))) x4)
* * [misc]progress:  iteration 1 / 4
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 4 ] rewriting at (2 1 1 1 1 1 1)
* * * * [misc]progress:  [ 2 / 4 ] rewriting at (2 1 1 1 2)
* * * * [misc]progress:  [ 3 / 4 ] rewriting at (2 1 1 1 1 2)
* * * * [misc]progress:  [ 4 / 4 ] rewriting at (2 1 1 1 1)
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 4 ] generating series at (2 1 1 1 1 1 1)
* [misc]approximate:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 x2) into x2
* [misc]backup-simplify:  Simplify (+ x2 x3) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ (+ x2 x3) (- x4)) into (- (+ x2 x3) x4)
* [misc]backup-simplify:  Simplify (* 0 (- (+ x2 x3) x4)) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (+ (* 0 -1) (* x4 (- (+ x2 x3) x4))) into (- (+ (* x2 x4) (* x4 x3)) (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* x2 x4) (* x4 x3)) (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* x2 x4) (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* x4 -1) (* 0 (- (+ x2 x3) x4)))) into (- x4)
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]approximate:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* 1 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) -1) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ -1 x4) in x4
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ -1 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x2)) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) (- (/ 1 x4))) into (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1)) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) (/ 1 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) (/ 1 (pow x4 2))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- (/ 0 1) (+ (* -1 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1) (+ (* -1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (* -1 (* 1 (* 1 (* (pow (/ 1 x4) -2) (/ 1 (/ 1 x1)))))) (+ (* 1 (* 1 (* (/ 1 (/ 1 x2)) (* (/ 1 (/ 1 x4)) (/ 1 (/ 1 x1)))))) (* 1 (* (/ 1 (/ 1 x3)) (* 1 (* (/ 1 (/ 1 x4)) (/ 1 (/ 1 x1)))))))) into (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2)))
* [misc]approximate:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (* -1 (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) 1) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ -1 x2)) into (- (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2)) (/ -1 x3)) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (- (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x3))) (/ 1 x4)) into (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (* 0 (/ -1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1)) into (- (/ 1 (pow x4 2)) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (pow x4 2)) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ -1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (/ 1 x2) (/ 1 x3))) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (/ 1 x2) (/ 1 x3)))) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (/ 1 x3)) into (- (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* 1 (* (pow (/ 1 (- x4)) -2) (/ 1 (/ 1 (- x1))))))) (+ (* -1 (* 1 (* (/ 1 (/ 1 (- x2))) (* (/ 1 (/ 1 (- x4))) (/ 1 (/ 1 (- x1))))))) (* -1 (* (/ 1 (/ 1 (- x3))) (* 1 (* (/ 1 (/ 1 (- x4))) (/ 1 (/ 1 (- x1))))))))) into (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2)))
* * * * [misc]progress:  [ 2 / 4 ] generating series at (2 1 1 1 2)
* [misc]approximate:  Taking taylor expansion of (* (* x2 x3) x4) in (x2 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (* x2 x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* (* x2 x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x2 x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x2 x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* x3 x4)) into (* x4 x3)
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* x3 0) (* 0 x4))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]approximate:  Taking taylor expansion of (* (* (/ 1 x2) (/ 1 x3)) (/ 1 x4)) in (x2 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x2) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x2) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x2) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x2) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* 1 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (* (/ 1 x3) (/ 1 x4)) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 (/ 1 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (* 0 (/ 1 x4))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 (/ 1 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 1 (* (/ 1 (/ 1 x4)) (* (/ 1 (/ 1 x3)) (/ 1 (/ 1 x2))))) into (* x2 (* x4 x3))
* [misc]approximate:  Taking taylor expansion of (* (* (/ 1 (- x2)) (/ 1 (- x3))) (/ 1 (- x4))) in (x2 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x2)) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x2)) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x2)) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x2)) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (* -1 (/ -1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (* (/ 1 x3) (/ -1 x4)) into (/ -1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (/ -1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ -1 x4) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ -1 x4) in x4
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ -1 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (* 0 (/ -1 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (* 0 (/ -1 x4))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 x4) (+ (* (/ -1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1) (+ (* -1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ -1 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (* 0 (/ -1 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 x4) (+ (* (/ -1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1) (+ (* -1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x4))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 x4) (+ (* (/ -1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* -1 (* (/ 1 (/ 1 (- x4))) (* (/ 1 (/ 1 (- x3))) (/ 1 (/ 1 (- x2)))))) into (* x2 (* x4 x3))
* * * * [misc]progress:  [ 3 / 4 ] generating series at (2 1 1 1 1 2)
* [misc]approximate:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in (x3 x1 x2 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x1 x2) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) 0) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) x4) into (+ x1 (+ x2 x4))
* [misc]backup-simplify:  Simplify (* 0 (+ x1 (+ x2 x4))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ (* 0 -1) (* 1 (+ x1 (+ x2 x4)))) into (+ x1 (+ x2 x4))
* [misc]taylor:  Taking taylor expansion of (+ x1 (+ x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x2 x4) into (+ x2 x4)
* [misc]backup-simplify:  Simplify (+ 0 (+ x2 x4)) into (+ x2 x4)
* [misc]taylor:  Taking taylor expansion of (+ x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 0 x4) into x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 -1) (* 0 (+ x1 (+ x2 x4))))) into (- 1)
* [misc]taylor:  Taking taylor expansion of (- 1) in x1
* [misc]taylor:  Taking taylor expansion of 1 in x1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* x2 (* 1 x3)))) (+ (* 1 (* 1 (* 1 (* x1 x3)))) (* -1 (pow (* 1 (* 1 (* 1 x3))) 2)))) into (- (+ (* x1 x3) (* x2 x3)) (pow x3 2))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in (x3 x1 x2 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) (/ 1 x2)) into (+ (/ 1 x2) (/ 1 x1))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x1)) 0) into (+ (/ 1 x2) (/ 1 x1))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x1)) (/ 1 x4)) into (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))) (* 0 -1)) into (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))) (* 0 -1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x4)) into (+ (/ 1 x2) (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))) (* 0 -1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* 1 (* (/ 1 (/ 1 x1)) (/ 1 (/ 1 x3)))))) (+ (* 1 (* 1 (* (/ 1 (/ 1 x2)) (* 1 (/ 1 (/ 1 x3)))))) (* 1 (* (/ 1 (/ 1 x4)) (* 1 (* 1 (/ 1 (/ 1 x3)))))))) into (+ (* x1 x3) (+ (* x4 x3) (* x2 x3)))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in (x3 x1 x2 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* -1 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (/ -1 x1) (/ -1 x2)) into (- (+ (/ 1 x2) (/ 1 x1)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x1))) 0) into (- (+ (/ 1 x2) (/ 1 x1)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x1))) (/ -1 x4)) into (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))))) (* 0 1)) into (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))))) (* 0 1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x4)) into (+ (/ 1 x2) (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))))) (* 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* 1 (* (/ 1 (/ 1 (- x1))) (/ 1 (/ 1 (- x3))))))) (+ (* 1 (* 1 (* (/ 1 (/ 1 (- x2))) (* 1 (/ 1 (/ 1 (- x3))))))) (* 1 (* (/ 1 (/ 1 (- x4))) (* 1 (* 1 (/ 1 (/ 1 (- x3))))))))) into (+ (* x1 x3) (+ (* x4 x3) (* x2 x3)))
* * * * [misc]progress:  [ 4 / 4 ] generating series at (2 1 1 1 1)
* [misc]approximate:  Taking taylor expansion of (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ (- x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ (- x1 x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1 x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1 x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ (- x1 x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1 x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- x1 x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ (- x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ (- x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 x2) into x2
* [misc]backup-simplify:  Simplify (+ x2 x3) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ (+ x2 x3) (- x4)) into (- (+ x2 x3) x4)
* [misc]backup-simplify:  Simplify (* 0 (- (+ x2 x3) x4)) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (+ 0 (- x2)) into (- x2)
* [misc]backup-simplify:  Simplify (+ (- x2) x3) into (- x3 x2)
* [misc]backup-simplify:  Simplify (+ (- x3 x2) x4) into (- (+ x4 x3) x2)
* [misc]backup-simplify:  Simplify (* x2 (- (+ x4 x3) x2)) into (* x2 (- (+ x4 x3) x2))
* [misc]backup-simplify:  Simplify (+ 0 (* x2 (- (+ x4 x3) x2))) into (- (+ (* x2 x4) (* x2 x3)) (pow x2 2))
* [misc]backup-simplify:  Simplify (+ 0 x2) into x2
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (+ x2 (- x3)) into (- x2 x3)
* [misc]backup-simplify:  Simplify (+ (- x2 x3) x4) into (- (+ x2 x4) x3)
* [misc]backup-simplify:  Simplify (* x3 (- (+ x2 x4) x3)) into (* (- (+ x2 x4) x3) x3)
* [misc]backup-simplify:  Simplify (+ (- (+ (* x2 x4) (* x2 x3)) (pow x2 2)) (* (- (+ x2 x4) x3) x3)) into (- (+ (* x2 x4) (+ (* x4 x3) (* 2 (* x2 x3)))) (+ (pow x3 2) (pow x2 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* x2 x4) (+ (* x4 x3) (* 2 (* x2 x3)))) (+ (pow x3 2) (pow x2 2))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* x2 x4) (+ (* x4 x3) (* 2 (* x2 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (* x4 x3) (* 2 (* x2 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (* 2 (* x2 x3)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (pow x3 2) (pow x2 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x4
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x4
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x4
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x4
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (* x2 x3) into (* x2 x3)
* [misc]backup-simplify:  Simplify (* 2 (* x2 x3)) into (* 2 (* x2 x3))
* [misc]backup-simplify:  Simplify (+ 0 (* 2 (* x2 x3))) into (* 2 (* x2 x3))
* [misc]backup-simplify:  Simplify (+ 0 (* 2 (* x2 x3))) into (* 2 (* x2 x3))
* [misc]backup-simplify:  Simplify (+ (pow x3 2) (pow x2 2)) into (+ (pow x3 2) (pow x2 2))
* [misc]backup-simplify:  Simplify (- (+ (pow x3 2) (pow x2 2))) into (- (+ (pow x3 2) (pow x2 2)))
* [misc]backup-simplify:  Simplify (+ (* 2 (* x2 x3)) (- (+ (pow x3 2) (pow x2 2)))) into (- (* 2 (* x2 x3)) (+ (pow x3 2) (pow x2 2)))
* [misc]taylor:  Taking taylor expansion of (- (* 2 (* x2 x3)) (+ (pow x3 2) (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (* x2 x3)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (pow x3 2) (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (* 2 0) into 0
* [misc]backup-simplify:  Simplify (+ (pow x3 2) 0) into (pow x3 2)
* [misc]backup-simplify:  Simplify (- (pow x3 2)) into (- (pow x3 2))
* [misc]backup-simplify:  Simplify (+ 0 (- (pow x3 2))) into (- (pow x3 2))
* [misc]taylor:  Taking taylor expansion of (- (pow x3 2)) in x3
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x3
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (+ (* 0 -1) (* x4 (- (+ x2 x3) x4))) into (- (+ (* x2 x4) (* x4 x3)) (pow x4 2))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 (- (+ x4 x3) x2))) into x2
* [misc]backup-simplify:  Simplify (+ (- (+ (* x2 x4) (* x4 x3)) (pow x4 2)) x2) into (- (+ (* x2 x4) (+ (* x4 x3) x2)) (pow x4 2))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ (* x3 1) (* 0 (- (+ x2 x4) x3))) into x3
* [misc]backup-simplify:  Simplify (+ (- (+ (* x2 x4) (+ (* x4 x3) x2)) (pow x4 2)) x3) into (- (+ (* x2 x4) (+ (* x4 x3) (+ x2 x3))) (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* x2 x4) (+ (* x4 x3) (+ x2 x3))) (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* x2 x4) (+ (* x4 x3) (+ x2 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (* x4 x3) (+ x2 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ x2 x3) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ x2 x3) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (+ 0 (+ x2 x3)) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (+ 0 (+ x2 x3)) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (+ (+ x2 x3) 0) into (+ x2 x3)
* [misc]taylor:  Taking taylor expansion of (+ x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (+ 0 x3) into x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (* x2 x3))) into 0
* [misc]backup-simplify:  Simplify (+ x3 0) into x3
* [misc]backup-simplify:  Simplify (+ x2 x3) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ x2 x3) 0) into (+ x2 x3)
* [misc]taylor:  Taking taylor expansion of (+ x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (+ 0 x3) into x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (+ (* 2 x3) (* 0 0)) into (* 2 x3)
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 x3) 0) into (* 2 x3)
* [misc]taylor:  Taking taylor expansion of (* 2 x3) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* 2 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* x4 -1) (* 0 (- (+ x2 x3) x4)))) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 (- (+ x4 x3) x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (- x4) 0) into (- x4)
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x3 0) (+ (* 0 1) (* 0 (- (+ x2 x4) x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (- x4) 0) into (- x4)
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ x3 0) into x3
* [misc]backup-simplify:  Simplify (+ x2 x3) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (+ (+ x2 x3) 0) into (+ x2 x3)
* [misc]taylor:  Taking taylor expansion of (+ x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (+ 0 x3) into x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (* x2 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x3 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x3 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x3)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x2 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x2 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x2)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]approximate:  Taking taylor expansion of (+ (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* 1 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) -1) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (+ (/ -1 x4) 0) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x4)) 0) into (- (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x2)) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) (- (/ 1 x4))) into (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1)) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) (/ 1 (pow x4 2)))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x2) 1) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) (/ 1 (pow x4 2))) (/ 1 x2)) into (- (+ (/ 1 x2) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) (/ 1 (pow x4 2)))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x3) 1) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) (/ 1 (pow x4 2))) (/ 1 x3)) into (- (+ (/ 1 x2) (+ (/ 1 x3) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))) (/ 1 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (+ (/ 1 x3) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))) (/ 1 (pow x4 2))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (/ 1 x3) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x3) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 x2)) into (- (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 x2))) into (- (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2)) (/ 1 x3)) into (- (/ 1 x3) (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x3) (/ 1 x2)) (/ 1 x4)) into (- (+ (/ 1 x3) (/ 1 x4)) (/ 1 x2))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x2) (- (+ (/ 1 x3) (/ 1 x4)) (/ 1 x2))) (* 0 1)) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2)))) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x2)) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (- (/ 1 x3)) into (- (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (- (/ 1 x3))) into (- (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2) (/ 1 x3)) (/ 1 x4)) into (- (+ (/ 1 x2) (/ 1 x4)) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x4)) (/ 1 x3))) (* 0 1)) into (- (+ (/ 1 (* x4 x3)) (/ 1 (* x2 x3))) (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2))) (- (+ (/ 1 (* x4 x3)) (/ 1 (* x2 x3))) (/ 1 (pow x3 2)))) into (- (+ (/ 1 (* x2 x4)) (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3))))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x2 x4)) (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3))))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 (* x2 x3))) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x2 x3) into (* x2 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x3)) into (/ 1 (* x2 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x4
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x4
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x4
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x4
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x3 2)) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ 0 (+ (/ 1 x2) (/ 1 x3))) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ 0 (+ (/ 1 x2) (/ 1 x3))) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x2) 0) (+ (* 0 (- (+ (/ 1 x3) (/ 1 x4)) (/ 1 x2))) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x4)) (/ 1 x3))) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) 0) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) 0) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4)))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x2) 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x3) (/ 1 x4)) (/ 1 x2))) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x4)) (/ 1 x3))) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (* 2 (/ 1 (* x2 x3))) into (/ 2 (* x2 x3))
* [misc]backup-simplify:  Simplify (+ 0 (/ 2 (* x2 x3))) into (* 2 (/ 1 (* x2 x3)))
* [misc]backup-simplify:  Simplify (+ 0 (* 2 (/ 1 (* x2 x3)))) into (* 2 (/ 1 (* x2 x3)))
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))) into (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (- (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))) into (- (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))
* [misc]backup-simplify:  Simplify (+ (* 2 (/ 1 (* x2 x3))) (- (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))) into (- (* 2 (/ 1 (* x2 x3))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))
* [misc]taylor:  Taking taylor expansion of (- (* 2 (/ 1 (* x2 x3))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 (* x2 x3))) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x3 2)) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1)))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x2) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x3) (/ 1 x4)) (/ 1 x2))) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x4)) (/ 1 x3))) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x2 x3)) (/ 0 (* x2 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (/ 1 (* x2 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x2 2)) (/ 0 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x3 2)) (/ 0 (pow x3 2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x3))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 2 (/ 1 x3)) into (/ 2 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 2 x3) 0) into (* 2 (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (* -1 (* 1 (* 1 (* (pow (/ 1 x4) -2) (/ 1 (/ 1 x1)))))) (+ (* 1 (* 1 (* (/ 1 (/ 1 x2)) (* (/ 1 (/ 1 x4)) (/ 1 (/ 1 x1)))))) (* 1 (* (/ 1 (/ 1 x3)) (* 1 (* (/ 1 (/ 1 x4)) (/ 1 (/ 1 x1)))))))) into (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2)))
* [misc]approximate:  Taking taylor expansion of (+ (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (* -1 (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) 1) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ -1 x2)) into (- (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2)) (/ -1 x3)) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (- (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x3))) (/ 1 x4)) into (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (* 0 (/ -1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1)) into (- (/ 1 (pow x4 2)) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ -1 x2) -1) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ (- (/ 1 (pow x4 2)) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) (/ 1 x2)) into (- (+ (/ 1 x2) (/ 1 (pow x4 2))) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ -1 x3) -1) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 (pow x4 2))) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) (/ 1 x3)) into (- (+ (/ 1 x2) (+ (/ 1 (pow x4 2)) (/ 1 x3))) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (+ (/ 1 (pow x4 2)) (/ 1 x3))) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (/ 1 (pow x4 2)) (/ 1 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x4 2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ -1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ -1 x2)) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x2)) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ -1 x3)) into (- (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2) (/ 1 x3)) (/ -1 x4)) into (- (/ 1 x2) (+ (/ 1 x3) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x2) (- (/ 1 x2) (+ (/ 1 x3) (/ 1 x4)))) (* 0 -1)) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2)))) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ -1 x2)) into (- (/ 1 x2))
* [misc]backup-simplify:  Simplify (- (/ -1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2)) (/ 1 x3)) into (- (/ 1 x3) (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x3) (/ 1 x2)) (/ -1 x4)) into (- (/ 1 x3) (+ (/ 1 x2) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) (- (/ 1 x3) (+ (/ 1 x2) (/ 1 x4)))) (* 0 -1)) into (- (+ (/ 1 (* x4 x3)) (/ 1 (* x2 x3))) (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2))) (- (+ (/ 1 (* x4 x3)) (/ 1 (* x2 x3))) (/ 1 (pow x3 2)))) into (- (+ (/ 1 (* x2 x4)) (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3))))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x2 x4)) (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3))))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 (* x2 x3))) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x2 x3) into (* x2 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x3)) into (/ 1 (* x2 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x4
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x4
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x4
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x4
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x3 2)) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (/ 1 x2) (/ 1 x3))) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (/ 1 x2) (/ 1 x3)))) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x2) 0) (+ (* 0 (- (/ 1 x2) (+ (/ 1 x3) (/ 1 x4)))) (* 0 -1))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 (- (/ 1 x3) (+ (/ 1 x2) (/ 1 x4)))) (* 0 -1))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) 0) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x4)))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x2) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x2) (+ (/ 1 x3) (/ 1 x4)))) (* 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x3) (+ (/ 1 x2) (/ 1 x4)))) (* 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (* 2 (/ 1 (* x2 x3))) into (/ 2 (* x2 x3))
* [misc]backup-simplify:  Simplify (+ 0 (/ 2 (* x2 x3))) into (* 2 (/ 1 (* x2 x3)))
* [misc]backup-simplify:  Simplify (+ 0 (* 2 (/ 1 (* x2 x3)))) into (* 2 (/ 1 (* x2 x3)))
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))) into (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (- (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))) into (- (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))
* [misc]backup-simplify:  Simplify (+ (* 2 (/ 1 (* x2 x3))) (- (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))) into (- (* 2 (/ 1 (* x2 x3))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))
* [misc]taylor:  Taking taylor expansion of (- (* 2 (/ 1 (* x2 x3))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 (* x2 x3))) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x3 2)) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (/ 1 x3)) into (- (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x4))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x2) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x2) (+ (/ 1 x3) (/ 1 x4)))) (* 0 -1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x3) (+ (/ 1 x2) (/ 1 x4)))) (* 0 -1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x2 x3)) (/ 0 (* x2 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (/ 1 (* x2 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x2 2)) (/ 0 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x3 2)) (/ 0 (pow x3 2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x3))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 2 (/ 1 x3)) into (/ 2 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 2 x3) 0) into (* 2 (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* 1 (* (pow (/ 1 (- x4)) -2) (/ 1 (/ 1 (- x1))))))) (+ (* -1 (* 1 (* (/ 1 (/ 1 (- x2))) (* (/ 1 (/ 1 (- x4))) (/ 1 (/ 1 (- x1))))))) (* -1 (* (/ 1 (/ 1 (- x3))) (* 1 (* (/ 1 (/ 1 (- x4))) (/ 1 (/ 1 (- x1))))))))) into (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2)))
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 1) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (26 enodes)
* * [misc]simplify:  iters left: 3 (52 enodes)
* * [misc]simplify:  iters left: 2 (96 enodes)
* * [misc]simplify:  iters left: 1 (149 enodes)
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1))
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1))
* * * * [misc]progress:  [ 2 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 1) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 3 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (exp (+ (log (* x1 x4)) (log (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (log (* x1 x4)) (log (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (30 enodes)
* * [misc]simplify:  iters left: 3 (44 enodes)
* * [misc]simplify:  iters left: 2 (54 enodes)
* * [misc]simplify:  iters left: 1 (67 enodes)
* [exit]simplify:  Simplified to (+ (log (+ (+ x2 x3) (- (- x1) x4))) (log (* x4 x1)))
* [exit]simplify:  Simplified to (+ (log (+ (+ x2 x3) (- (- x1) x4))) (log (* x4 x1)))
* * * * [misc]progress:  [ 4 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (exp (log (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (log (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (68 enodes)
* * [misc]simplify:  iters left: 2 (118 enodes)
* * [misc]simplify:  iters left: 1 (171 enodes)
* [exit]simplify:  Simplified to (log (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [exit]simplify:  Simplified to (log (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * * * [misc]progress:  [ 5 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (log (exp (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (exp (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (59 enodes)
* * [misc]simplify:  iters left: 2 (103 enodes)
* * [misc]simplify:  iters left: 1 (156 enodes)
* [exit]simplify:  Simplified to (pow (exp (* x4 x1)) (+ x2 (+ (- x3 x4) (- x1))))
* [exit]simplify:  Simplified to (pow (exp (* x4 x1)) (+ x2 (+ (- x3 x4) (- x1))))
* * * * [misc]progress:  [ 6 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (cbrt (* (* (* (* x1 x4) (* x1 x4)) (* x1 x4)) (* (* (- (+ (+ (- x1) x2) x3) x4) (- (+ (+ (- x1) x2) x3) x4)) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* (* x1 x4) (* x1 x4)) (* x1 x4)) (* (* (- (+ (+ (- x1) x2) x3) x4) (- (+ (+ (- x1) x2) x3) x4)) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (48 enodes)
* * [misc]simplify:  iters left: 3 (127 enodes)
* * [misc]simplify:  iters left: 2 (456 enodes)
* [exit]simplify:  Simplified to (* (* (+ (+ (- x1) x3) (- x2 x4)) (+ (+ (- x1) x3) (- x2 x4))) (* (pow (* x4 x1) 3) (+ (- x2 (- x4 x3)) (- x1))))
* [exit]simplify:  Simplified to (* (* (+ (+ (- x1) x3) (- x2 x4)) (+ (+ (- x1) x3) (- x2 x4))) (* (pow (* x4 x1) 3) (+ (- x2 (- x4 x3)) (- x1))))
* * * * [misc]progress:  [ 7 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (54 enodes)
* * [misc]simplify:  iters left: 2 (98 enodes)
* * [misc]simplify:  iters left: 1 (151 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1))) (cbrt (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1))))
* [exit]simplify:  Simplified to (* (cbrt (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1))) (cbrt (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1))))
* [enter]simplify:  Simplifying (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (53 enodes)
* * [misc]simplify:  iters left: 2 (97 enodes)
* * [misc]simplify:  iters left: 1 (150 enodes)
* [exit]simplify:  Simplified to (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [exit]simplify:  Simplified to (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * * * [misc]progress:  [ 8 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (cbrt (* (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (104 enodes)
* * [misc]simplify:  iters left: 2 (356 enodes)
* [exit]simplify:  Simplified to (pow (* (+ x3 (+ (- x1) (- x2 x4))) (* x4 x1)) 3)
* [exit]simplify:  Simplified to (pow (* (+ x3 (+ (- x1) (- x2 x4))) (* x4 x1)) 3)
* * * * [misc]progress:  [ 9 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (sqrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (sqrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (sqrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (53 enodes)
* * [misc]simplify:  iters left: 2 (97 enodes)
* * [misc]simplify:  iters left: 1 (150 enodes)
* [exit]simplify:  Simplified to (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [exit]simplify:  Simplified to (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [enter]simplify:  Simplifying (sqrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (53 enodes)
* * [misc]simplify:  iters left: 2 (97 enodes)
* * [misc]simplify:  iters left: 1 (150 enodes)
* [exit]simplify:  Simplified to (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [exit]simplify:  Simplified to (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * * * [misc]progress:  [ 10 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* 1 (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 11 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (* x1 x4) (+ (+ (- x1) x2) x3)) (* (* x1 x4) (- x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (+ (+ (- x1) x2) x3))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (61 enodes)
* * [misc]simplify:  iters left: 3 (124 enodes)
* * [misc]simplify:  iters left: 2 (168 enodes)
* * [misc]simplify:  iters left: 1 (190 enodes)
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- x1)) (* x4 x1))
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- x1)) (* x4 x1))
* [enter]simplify:  Simplifying (* (* x1 x4) (- x4))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* * [misc]simplify:  iters left: 1 (26 enodes)
* [exit]simplify:  Simplified to (* (- x1) (* x4 x4))
* [exit]simplify:  Simplified to (* (- x1) (* x4 x4))
* * * * [misc]progress:  [ 12 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (* x1 x4) (+ (- x1) x2)) (* (* x1 x4) (- x3 x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (+ (- x1) x2))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (46 enodes)
* * [misc]simplify:  iters left: 3 (62 enodes)
* * [misc]simplify:  iters left: 2 (68 enodes)
* * [misc]simplify:  iters left: 1 (70 enodes)
* [exit]simplify:  Simplified to (* (* x4 x1) (+ (- x1) x2))
* [exit]simplify:  Simplified to (* (* x4 x1) (+ (- x1) x2))
* [enter]simplify:  Simplifying (* (* x1 x4) (- x3 x4))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (* (* x4 x1) (- x3 x4))
* [exit]simplify:  Simplified to (* (* x4 x1) (- x3 x4))
* * * * [misc]progress:  [ 13 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (+ (+ (- x1) x2) x3) (* x1 x4)) (* (- x4) (* x1 x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (+ (+ (- x1) x2) x3) (* x1 x4))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (21 enodes)
* * [misc]simplify:  iters left: 3 (45 enodes)
* * [misc]simplify:  iters left: 2 (91 enodes)
* * [misc]simplify:  iters left: 1 (110 enodes)
* [exit]simplify:  Simplified to (* (+ (- x1) (+ x3 x2)) (* x1 x4))
* [exit]simplify:  Simplified to (* (+ (- x1) (+ x3 x2)) (* x1 x4))
* [enter]simplify:  Simplifying (* (- x4) (* x1 x4))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (22 enodes)
* [exit]simplify:  Simplified to (* (* x4 x4) (- x1))
* [exit]simplify:  Simplified to (* (* x4 x4) (- x1))
* * * * [misc]progress:  [ 14 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (+ (- x1) x2) (* x1 x4)) (* (- x3 x4) (* x1 x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (+ (- x1) x2) (* x1 x4))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (30 enodes)
* * [misc]simplify:  iters left: 2 (54 enodes)
* * [misc]simplify:  iters left: 1 (60 enodes)
* [exit]simplify:  Simplified to (* (+ (- x1) x2) (* x1 x4))
* [exit]simplify:  Simplified to (* (+ (- x1) x2) (* x1 x4))
* [enter]simplify:  Simplifying (* (- x3 x4) (* x1 x4))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (* (- x3 x4) (* x1 x4))
* [exit]simplify:  Simplified to (* (- x3 x4) (* x1 x4))
* * * * [misc]progress:  [ 15 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (* x1 x4) (* (cbrt (- (+ (+ (- x1) x2) x3) x4)) (cbrt (- (+ (+ (- x1) x2) x3) x4)))) (cbrt (- (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (* (cbrt (- (+ (+ (- x1) x2) x3) x4)) (cbrt (- (+ (+ (- x1) x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (54 enodes)
* * [misc]simplify:  iters left: 2 (71 enodes)
* * [misc]simplify:  iters left: 1 (84 enodes)
* [exit]simplify:  Simplified to (* (* (cbrt (+ x2 (+ (- x3 x4) (- x1)))) (* x4 x1)) (cbrt (+ x2 (+ (- x3 x4) (- x1)))))
* [exit]simplify:  Simplified to (* (* (cbrt (+ x2 (+ (- x3 x4) (- x1)))) (* x4 x1)) (cbrt (+ x2 (+ (- x3 x4) (- x1)))))
* * * * [misc]progress:  [ 16 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (* x1 x4) (sqrt (- (+ (+ (- x1) x2) x3) x4))) (sqrt (- (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (sqrt (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (41 enodes)
* * [misc]simplify:  iters left: 2 (50 enodes)
* * [misc]simplify:  iters left: 1 (63 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (+ (- x1) x2) (- x3 x4))) (* x4 x1))
* [exit]simplify:  Simplified to (* (sqrt (+ (+ (- x1) x2) (- x3 x4))) (* x4 x1))
* * * * [misc]progress:  [ 17 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (* x1 x4) 1) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) 1)
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* [exit]simplify:  Simplified to (* x1 x4)
* [exit]simplify:  Simplified to (* x1 x4)
* * * * [misc]progress:  [ 18 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* x1 (* x4 (- (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x4 (- (+ (+ (- x1) x2) x3) x4))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* * [misc]simplify:  iters left: 4 (20 enodes)
* * [misc]simplify:  iters left: 3 (42 enodes)
* * [misc]simplify:  iters left: 2 (69 enodes)
* * [misc]simplify:  iters left: 1 (95 enodes)
* [exit]simplify:  Simplified to (* (+ x3 (+ (- x1) (- x2 x4))) x4)
* [exit]simplify:  Simplified to (* (+ x3 (+ (- x1) (- x2 x4))) x4)
* * * * [misc]progress:  [ 19 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (/ (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3)))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (115 enodes)
* * [misc]simplify:  iters left: 2 (263 enodes)
* * [misc]simplify:  iters left: 1 (467 enodes)
* [exit]simplify:  Simplified to (* (- (pow (+ (- x1) (+ x2 x3)) 3) (pow x4 3)) (* x4 x1))
* [exit]simplify:  Simplified to (* (- (pow (+ (- x1) (+ x2 x3)) 3) (pow x4 3)) (* x4 x1))
* * * * [misc]progress:  [ 20 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (/ (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (+ (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (73 enodes)
* * [misc]simplify:  iters left: 3 (225 enodes)
* [exit]simplify:  Simplified to (* (* x4 x1) (- (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3))) (* x4 x4)))
* [exit]simplify:  Simplified to (* (* x4 x1) (- (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3))) (* x4 x4)))
* * * * [misc]progress:  [ 21 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (- (+ (+ (- x1) x2) x3) x4) (* x1 x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 22 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (pow (* (* x2 x3) x4) 1)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 23 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (exp (log (* (* x2 x3) x4)))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (log (* (* x2 x3) x4))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (12 enodes)
* * [misc]simplify:  iters left: 3 (20 enodes)
* * [misc]simplify:  iters left: 2 (31 enodes)
* * [misc]simplify:  iters left: 1 (39 enodes)
* [exit]simplify:  Simplified to (log (* (* x4 x3) x2))
* [exit]simplify:  Simplified to (log (* (* x4 x3) x2))
* * * * [misc]progress:  [ 24 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (log (exp (* (* x2 x3) x4)))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (exp (* (* x2 x3) x4))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* * [misc]simplify:  iters left: 2 (22 enodes)
* * [misc]simplify:  iters left: 1 (24 enodes)
* [exit]simplify:  Simplified to (exp (* x2 (* x4 x3)))
* [exit]simplify:  Simplified to (exp (* x2 (* x4 x3)))
* * * * [misc]progress:  [ 25 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* (cbrt (* (* x2 x3) x4)) (cbrt (* (* x2 x3) x4))) (cbrt (* (* x2 x3) x4)))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (cbrt (* (* x2 x3) x4)) (cbrt (* (* x2 x3) x4)))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (17 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* (* x4 x3) x2)) (cbrt (* (* x4 x3) x2)))
* [exit]simplify:  Simplified to (* (cbrt (* (* x4 x3) x2)) (cbrt (* (* x4 x3) x2)))
* [enter]simplify:  Simplifying (cbrt (* (* x2 x3) x4))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (cbrt (* x2 (* x4 x3)))
* [exit]simplify:  Simplified to (cbrt (* x2 (* x4 x3)))
* * * * [misc]progress:  [ 26 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (cbrt (* (* (* (* x2 x3) x4) (* (* x2 x3) x4)) (* (* x2 x3) x4)))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* (* x2 x3) x4) (* (* x2 x3) x4)) (* (* x2 x3) x4))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (65 enodes)
* * [misc]simplify:  iters left: 2 (147 enodes)
* * [misc]simplify:  iters left: 1 (252 enodes)
* [exit]simplify:  Simplified to (pow (* (* x4 x2) x3) 3)
* [exit]simplify:  Simplified to (pow (* (* x4 x2) x3) 3)
* * * * [misc]progress:  [ 27 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (sqrt (* (* x2 x3) x4)) (sqrt (* (* x2 x3) x4)))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (sqrt (* (* x2 x3) x4))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (* x2 (* x4 x3)))
* [exit]simplify:  Simplified to (sqrt (* x2 (* x4 x3)))
* [enter]simplify:  Simplifying (sqrt (* (* x2 x3) x4))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (* x2 (* x4 x3)))
* [exit]simplify:  Simplified to (sqrt (* x2 (* x4 x3)))
* * * * [misc]progress:  [ 28 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* 1 (* (* x2 x3) x4))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 29 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 x4)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (* x4 x3)
* [exit]simplify:  Simplified to (* x4 x3)
* * * * [misc]progress:  [ 30 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x4 (* x2 x3))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 31 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (pow (* x3 (+ (- (+ x1 x2) x3) x4)) 1)) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 32 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (exp (log (* x3 (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (log (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (63 enodes)
* * [misc]simplify:  iters left: 2 (87 enodes)
* * [misc]simplify:  iters left: 1 (109 enodes)
* [exit]simplify:  Simplified to (log (* x3 (- (+ x2 x4) (- x3 x1))))
* [exit]simplify:  Simplified to (log (* x3 (- (+ x2 x4) (- x3 x1))))
* * * * [misc]progress:  [ 33 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (log (exp (* x3 (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (exp (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (24 enodes)
* * [misc]simplify:  iters left: 4 (45 enodes)
* * [misc]simplify:  iters left: 3 (82 enodes)
* * [misc]simplify:  iters left: 2 (143 enodes)
* * [misc]simplify:  iters left: 1 (215 enodes)
* [exit]simplify:  Simplified to (pow (exp x3) (+ (- x2 x3) (+ x1 x4)))
* [exit]simplify:  Simplified to (pow (exp x3) (+ (- x2 x3) (+ x1 x4)))
* * * * [misc]progress:  [ 34 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (cbrt (* x3 (+ (- (+ x1 x2) x3) x4))) (cbrt (* x3 (+ (- (+ x1 x2) x3) x4)))) (cbrt (* x3 (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (cbrt (* x3 (+ (- (+ x1 x2) x3) x4))) (cbrt (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (38 enodes)
* * [misc]simplify:  iters left: 3 (60 enodes)
* * [misc]simplify:  iters left: 2 (83 enodes)
* * [misc]simplify:  iters left: 1 (100 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* x3 (+ (+ x1 x4) (- x2 x3)))) (cbrt (* x3 (+ (+ x1 x4) (- x2 x3)))))
* [exit]simplify:  Simplified to (* (cbrt (* x3 (+ (+ x1 x4) (- x2 x3)))) (cbrt (* x3 (+ (+ x1 x4) (- x2 x3)))))
* [enter]simplify:  Simplifying (cbrt (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (37 enodes)
* * [misc]simplify:  iters left: 3 (59 enodes)
* * [misc]simplify:  iters left: 2 (82 enodes)
* * [misc]simplify:  iters left: 1 (99 enodes)
* [exit]simplify:  Simplified to (cbrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* [exit]simplify:  Simplified to (cbrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* * * * [misc]progress:  [ 35 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (cbrt (* (* (* x3 (+ (- (+ x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* x3 (+ (- (+ x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (52 enodes)
* * [misc]simplify:  iters left: 3 (97 enodes)
* * [misc]simplify:  iters left: 2 (307 enodes)
* [exit]simplify:  Simplified to (pow (* x3 (+ (+ x1 x4) (- x2 x3))) 3)
* [exit]simplify:  Simplified to (pow (* x3 (+ (+ x1 x4) (- x2 x3))) 3)
* * * * [misc]progress:  [ 36 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (sqrt (* x3 (+ (- (+ x1 x2) x3) x4))) (sqrt (* x3 (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (sqrt (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (37 enodes)
* * [misc]simplify:  iters left: 3 (59 enodes)
* * [misc]simplify:  iters left: 2 (82 enodes)
* * [misc]simplify:  iters left: 1 (99 enodes)
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* [enter]simplify:  Simplifying (sqrt (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (37 enodes)
* * [misc]simplify:  iters left: 3 (59 enodes)
* * [misc]simplify:  iters left: 2 (82 enodes)
* * [misc]simplify:  iters left: 1 (99 enodes)
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* * * * [misc]progress:  [ 37 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* 1 (* x3 (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 38 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* x3 (- (+ x1 x2) x3)) (* x3 x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (- (+ x1 x2) x3))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* * [misc]simplify:  iters left: 2 (26 enodes)
* * [misc]simplify:  iters left: 1 (32 enodes)
* [exit]simplify:  Simplified to (* x3 (- x1 (- x3 x2)))
* [exit]simplify:  Simplified to (* x3 (- x1 (- x3 x2)))
* [enter]simplify:  Simplifying (* x3 x4)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (* x4 x3)
* [exit]simplify:  Simplified to (* x4 x3)
* * * * [misc]progress:  [ 39 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (- (+ x1 x2) x3) x3) (* x4 x3))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (- (+ x1 x2) x3) x3)
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* * [misc]simplify:  iters left: 2 (26 enodes)
* * [misc]simplify:  iters left: 1 (32 enodes)
* [exit]simplify:  Simplified to (* x3 (+ (- x2 x3) x1))
* [exit]simplify:  Simplified to (* x3 (+ (- x2 x3) x1))
* [enter]simplify:  Simplifying (* x4 x3)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (* x3 x4)
* [exit]simplify:  Simplified to (* x3 x4)
* * * * [misc]progress:  [ 40 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (* (cbrt (+ (- (+ x1 x2) x3) x4)) (cbrt (+ (- (+ x1 x2) x3) x4)))) (cbrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (* (cbrt (+ (- (+ x1 x2) x3) x4)) (cbrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (41 enodes)
* * [misc]simplify:  iters left: 2 (47 enodes)
* * [misc]simplify:  iters left: 1 (54 enodes)
* [exit]simplify:  Simplified to (* x3 (* (cbrt (+ (- x2 x3) (+ x1 x4))) (cbrt (+ (- x2 x3) (+ x1 x4)))))
* [exit]simplify:  Simplified to (* x3 (* (cbrt (+ (- x2 x3) (+ x1 x4))) (cbrt (+ (- x2 x3) (+ x1 x4)))))
* * * * [misc]progress:  [ 41 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (23 enodes)
* * [misc]simplify:  iters left: 3 (36 enodes)
* * [misc]simplify:  iters left: 2 (42 enodes)
* * [misc]simplify:  iters left: 1 (49 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (+ x2 x4) (- x1 x3))) x3)
* [exit]simplify:  Simplified to (* (sqrt (+ (+ x2 x4) (- x1 x3))) x3)
* * * * [misc]progress:  [ 42 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 1) (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 1)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to x3
* [exit]simplify:  Simplified to x3
* * * * [misc]progress:  [ 43 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (/ (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (28 enodes)
* * [misc]simplify:  iters left: 4 (56 enodes)
* * [misc]simplify:  iters left: 3 (100 enodes)
* * [misc]simplify:  iters left: 2 (201 enodes)
* * [misc]simplify:  iters left: 1 (368 enodes)
* [exit]simplify:  Simplified to (+ (* (* x4 x4) (* x4 x3)) (* (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x3 (+ (- x2 x3) x1))))
* [exit]simplify:  Simplified to (+ (* (* x4 x4) (* x4 x3)) (* (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x3 (+ (- x2 x3) x1))))
* * * * [misc]progress:  [ 44 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (/ (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))) (- (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (99 enodes)
* * [misc]simplify:  iters left: 2 (277 enodes)
* [exit]simplify:  Simplified to (* x3 (* (- (+ x1 x2) (+ x4 x3)) (+ (+ x4 x1) (- x2 x3))))
* [exit]simplify:  Simplified to (* x3 (* (- (+ x1 x2) (+ x4 x3)) (+ (+ x4 x1) (- x2 x3))))
* * * * [misc]progress:  [ 45 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (+ (- (+ x1 x2) x3) x4) x3)) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 46 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (log (* (* (exp (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (exp (* x2 (+ (+ (- x1 x2) x3) x4)))) (exp (* x3 (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (exp (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (exp (* x2 (+ (+ (- x1 x2) x3) x4)))) (exp (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (128 enodes)
* * [misc]simplify:  iters left: 3 (231 enodes)
* * [misc]simplify:  iters left: 2 (423 enodes)
* [exit]simplify:  Simplified to (* (pow (exp (* x4 x1)) (+ (+ (- x1) x2) (- x3 x4))) (* (pow (exp x2) (- (+ x4 x1) (- x2 x3))) (pow (exp x3) (+ (+ x4 x2) (- x1 x3)))))
* [exit]simplify:  Simplified to (* (pow (exp (* x4 x1)) (+ (+ (- x1) x2) (- x3 x4))) (* (pow (exp x2) (- (+ x4 x1) (- x2 x3))) (pow (exp x3) (+ (+ x4 x2) (- x1 x3)))))
* * * * [misc]progress:  [ 47 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (log (* (exp (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (exp (* x3 (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (exp (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (exp (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (61 enodes)
* * [misc]simplify:  iters left: 4 (129 enodes)
* * [misc]simplify:  iters left: 3 (242 enodes)
* * [misc]simplify:  iters left: 2 (425 enodes)
* [exit]simplify:  Simplified to (* (* (pow (exp x3) (+ (- x1 x3) (+ x4 x2))) (pow (exp x2) (- (+ x4 x1) (- x2 x3)))) (pow (exp (* x4 x1)) (+ (+ (- x1) x2) (- x3 x4))))
* [exit]simplify:  Simplified to (* (* (pow (exp x3) (+ (- x1 x3) (+ x4 x2))) (pow (exp x2) (- (+ x4 x1) (- x2 x3)))) (pow (exp (* x4 x1)) (+ (+ (- x1) x2) (- x3 x4))))
* * * * [misc]progress:  [ 48 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (pow (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) 1) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 49 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (exp (log (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (log (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (54 enodes)
* * [misc]simplify:  iters left: 4 (98 enodes)
* * [misc]simplify:  iters left: 3 (166 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (316 enodes)
* [exit]simplify:  Simplified to (log (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* [exit]simplify:  Simplified to (log (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* * * * [misc]progress:  [ 50 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (log (exp (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (exp (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (57 enodes)
* * [misc]simplify:  iters left: 4 (116 enodes)
* * [misc]simplify:  iters left: 3 (239 enodes)
* * [misc]simplify:  iters left: 2 (447 enodes)
* [exit]simplify:  Simplified to (* (pow (exp (* x4 x1)) (+ (+ x2 x3) (- (- x1) x4))) (* (pow (exp x3) (+ (- x2 x3) (+ x4 x1))) (pow (exp x2) (+ (+ x3 x4) (- x1 x2)))))
* [exit]simplify:  Simplified to (* (pow (exp (* x4 x1)) (+ (+ x2 x3) (- (- x1) x4))) (* (pow (exp x3) (+ (- x2 x3) (+ x4 x1))) (pow (exp x2) (+ (+ x3 x4) (- x1 x2)))))
* * * * [misc]progress:  [ 51 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (* (* (cbrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (cbrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (cbrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (cbrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (cbrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (55 enodes)
* * [misc]simplify:  iters left: 4 (99 enodes)
* * [misc]simplify:  iters left: 3 (167 enodes)
* * [misc]simplify:  iters left: 2 (242 enodes)
* * [misc]simplify:  iters left: 1 (317 enodes)
* [exit]simplify:  Simplified to (* (cbrt (+ (* (+ (+ x3 (- x2 x4)) (- x1)) (* x4 x1)) (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)))) (cbrt (+ (* (+ (+ x3 (- x2 x4)) (- x1)) (* x4 x1)) (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)))))
* [exit]simplify:  Simplified to (* (cbrt (+ (* (+ (+ x3 (- x2 x4)) (- x1)) (* x4 x1)) (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)))) (cbrt (+ (* (+ (+ x3 (- x2 x4)) (- x1)) (* x4 x1)) (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)))))
* [enter]simplify:  Simplifying (cbrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (54 enodes)
* * [misc]simplify:  iters left: 4 (98 enodes)
* * [misc]simplify:  iters left: 3 (166 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (316 enodes)
* [exit]simplify:  Simplified to (cbrt (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* [exit]simplify:  Simplified to (cbrt (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* * * * [misc]progress:  [ 52 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (cbrt (* (* (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (68 enodes)
* * [misc]simplify:  iters left: 4 (186 enodes)
* [exit]simplify:  Simplified to (pow (+ (+ (* x2 (+ (- x1 x2) (+ x3 x4))) (* (- (+ x2 x1) (- x3 x4)) x3)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) 3)
* [exit]simplify:  Simplified to (pow (+ (+ (* x2 (+ (- x1 x2) (+ x3 x4))) (* (- (+ x2 x1) (- x3 x4)) x3)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) 3)
* * * * [misc]progress:  [ 53 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (* (sqrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (sqrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (sqrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (54 enodes)
* * [misc]simplify:  iters left: 4 (98 enodes)
* * [misc]simplify:  iters left: 3 (166 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (316 enodes)
* [exit]simplify:  Simplified to (sqrt (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* [exit]simplify:  Simplified to (sqrt (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* [enter]simplify:  Simplifying (sqrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (54 enodes)
* * [misc]simplify:  iters left: 4 (98 enodes)
* * [misc]simplify:  iters left: 3 (166 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (316 enodes)
* [exit]simplify:  Simplified to (sqrt (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* [exit]simplify:  Simplified to (sqrt (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* * * * [misc]progress:  [ 54 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))))
* * [misc]simplify:  iters left: 6 (43 enodes)
* * [misc]simplify:  iters left: 5 (135 enodes)
* * [misc]simplify:  iters left: 4 (386 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (- (- x4 x1) (- x2 x3)) x4) (* (- x2 (- x3 x1)) (- x2 (- x3 x1)))) (+ (* (+ (* (* x4 x2) (* x4 x4)) (* (* (+ x3 (- x1 x2)) (+ x3 (- x1 x2))) (* (+ x3 (- x1 x2)) x2))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))) (* (* x1 (- (* x4 x4) (* (+ x3 (- x1 x2)) (+ (- x4 x1) (- x2 x3))))) (* (- (pow (+ (+ x2 x3) (- x1)) 3) (pow x4 3)) x4)))) (* (+ (* (* x3 x4) (* x4 x4)) (* (* x3 (- x2 (- x3 x1))) (* (- x2 (- x3 x1)) (- x2 (- x3 x1))))) (* (- (* x4 x4) (* (+ x3 (- x1 x2)) (+ (- x4 x1) (- x2 x3)))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1)))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (- (- x4 x1) (- x2 x3)) x4) (* (- x2 (- x3 x1)) (- x2 (- x3 x1)))) (+ (* (+ (* (* x4 x2) (* x4 x4)) (* (* (+ x3 (- x1 x2)) (+ x3 (- x1 x2))) (* (+ x3 (- x1 x2)) x2))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))) (* (* x1 (- (* x4 x4) (* (+ x3 (- x1 x2)) (+ (- x4 x1) (- x2 x3))))) (* (- (pow (+ (+ x2 x3) (- x1)) 3) (pow x4 3)) x4)))) (* (+ (* (* x3 x4) (* x4 x4)) (* (* x3 (- x2 (- x3 x1))) (* (- x2 (- x3 x1)) (- x2 (- x3 x1))))) (* (- (* x4 x4) (* (+ x3 (- x1 x2)) (+ (- x4 x1) (- x2 x3)))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1)))))))
* [enter]simplify:  Simplifying (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (26 enodes)
* * [misc]simplify:  iters left: 5 (79 enodes)
* * [misc]simplify:  iters left: 4 (261 enodes)
* [exit]simplify:  Simplified to (* (* (- (* x4 x4) (* (- x1 (- x2 x3)) (- (- x4 x3) (- x1 x2)))) (- (* x4 x4) (* (- (+ x1 x2) x3) (- (- x4 x1) (- x2 x3))))) (+ (* (+ (- x1) (+ x3 x2)) (+ (- x1) (+ x3 x2))) (* x4 (+ (+ (- x1) (+ x3 x2)) x4))))
* [exit]simplify:  Simplified to (* (* (- (* x4 x4) (* (- x1 (- x2 x3)) (- (- x4 x3) (- x1 x2)))) (- (* x4 x4) (* (- (+ x1 x2) x3) (- (- x4 x1) (- x2 x3))))) (+ (* (+ (- x1) (+ x3 x2)) (+ (- x1) (+ x3 x2))) (* x4 (+ (+ (- x1) (+ x3 x2)) x4))))
* * * * [misc]progress:  [ 55 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (- (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))))
* * [misc]simplify:  iters left: 6 (40 enodes)
* * [misc]simplify:  iters left: 5 (115 enodes)
* * [misc]simplify:  iters left: 4 (326 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* (* (- x1 (- x2 x3)) (- x1 (- x2 x3))) (* (- x1 (- x2 x3)) x2)) (* (* x4 x2) (* x4 x4))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))) (* (* (- (* x4 x4) (* (- x1 (- x2 x3)) (+ (- x4 x1) (- x2 x3)))) (* x4 x1)) (- (pow (+ (+ x2 x3) (- x1)) 3) (pow x4 3)))) (- (+ x2 x1) (+ x3 x4))) (* (* (* (- (+ x2 x1) (+ x3 x4)) (* (+ (- x2 x3) (+ x1 x4)) x3)) (- (* x4 x4) (* (- x1 (- x2 x3)) (+ (- x4 x1) (- x2 x3))))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* (* (- x1 (- x2 x3)) (- x1 (- x2 x3))) (* (- x1 (- x2 x3)) x2)) (* (* x4 x2) (* x4 x4))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))) (* (* (- (* x4 x4) (* (- x1 (- x2 x3)) (+ (- x4 x1) (- x2 x3)))) (* x4 x1)) (- (pow (+ (+ x2 x3) (- x1)) 3) (pow x4 3)))) (- (+ x2 x1) (+ x3 x4))) (* (* (* (- (+ x2 x1) (+ x3 x4)) (* (+ (- x2 x3) (+ x1 x4)) x3)) (- (* x4 x4) (* (- x1 (- x2 x3)) (+ (- x4 x1) (- x2 x3))))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))))
* [enter]simplify:  Simplifying (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (- (- (+ x1 x2) x3) x4))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (66 enodes)
* * [misc]simplify:  iters left: 4 (211 enodes)
* [exit]simplify:  Simplified to (* (+ (* (+ (+ x3 x2) (- x1)) x4) (+ (* x4 x4) (* (+ (+ x3 x2) (- x1)) (+ (+ x3 x2) (- x1))))) (* (- (+ x1 x2) (+ x4 x3)) (+ (* (- x1 (- x2 x3)) (- x1 (- x2 x3))) (* x4 (+ (- x4 x1) (- x2 x3))))))
* [exit]simplify:  Simplified to (* (+ (* (+ (+ x3 x2) (- x1)) x4) (+ (* x4 x4) (* (+ (+ x3 x2) (- x1)) (+ (+ x3 x2) (- x1))))) (* (- (+ x1 x2) (+ x4 x3)) (+ (* (- x1 (- x2 x3)) (- x1 (- x2 x3))) (* x4 (+ (- x4 x1) (- x2 x3))))))
* * * * [misc]progress:  [ 56 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (- (+ (- x1 x2) x3) x4)) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (- (+ (- x1 x2) x3) x4)) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))))
* * [misc]simplify:  iters left: 6 (40 enodes)
* * [misc]simplify:  iters left: 5 (109 enodes)
* * [misc]simplify:  iters left: 4 (310 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (+ (* (* (- (+ x3 x1) (+ x2 x4)) x4) (+ x4 (+ (+ x2 x3) (- x1)))) (* (- (+ x3 x1) (+ x2 x4)) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))) (+ (* (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x3 (+ (- x2 x3) x1))) (* (* x4 x4) (* x3 x4)))) (* (* (* (- (+ x3 x1) (+ x2 x4)) (* x4 x1)) (- (pow (+ (+ x2 x3) (- x1)) 3) (pow x4 3))) (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)))) (* (* (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)) (* (- (+ x3 x1) (+ x2 x4)) (* (- (+ x3 x1) (- x2 x4)) x2))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))))
* [exit]simplify:  Simplified to (+ (+ (* (+ (* (* (- (+ x3 x1) (+ x2 x4)) x4) (+ x4 (+ (+ x2 x3) (- x1)))) (* (- (+ x3 x1) (+ x2 x4)) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))) (+ (* (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x3 (+ (- x2 x3) x1))) (* (* x4 x4) (* x3 x4)))) (* (* (* (- (+ x3 x1) (+ x2 x4)) (* x4 x1)) (- (pow (+ (+ x2 x3) (- x1)) 3) (pow x4 3))) (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)))) (* (* (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)) (* (- (+ x3 x1) (+ x2 x4)) (* (- (+ x3 x1) (- x2 x4)) x2))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))))
* [enter]simplify:  Simplifying (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (60 enodes)
* * [misc]simplify:  iters left: 4 (178 enodes)
* [exit]simplify:  Simplified to (* (+ (* (+ (+ x3 x2) (- x1)) (+ (+ x3 x2) (- x1))) (* x4 (+ (+ (+ x3 x2) (- x1)) x4))) (* (- (+ x3 x1) (+ x2 x4)) (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x4 (- (- x4 x1) (- x2 x3))))))
* [exit]simplify:  Simplified to (* (+ (* (+ (+ x3 x2) (- x1)) (+ (+ x3 x2) (- x1))) (* x4 (+ (+ (+ x3 x2) (- x1)) x4))) (* (- (+ x3 x1) (+ x2 x4)) (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x4 (- (- x4 x1) (- x2 x3))))))
* * * * [misc]progress:  [ 57 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (- (+ (- x1 x2) x3) x4)) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (- (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (- (+ (- x1 x2) x3) x4)) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))))
* * [misc]simplify:  iters left: 6 (37 enodes)
* * [misc]simplify:  iters left: 5 (89 enodes)
* * [misc]simplify:  iters left: 4 (240 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- (+ x2 x1) (- x3 x4)) (* (- (+ x2 x1) (+ x3 x4)) x3)) (+ (- x1 x2) (- x3 x4))) (+ (+ (* x4 x4) (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3)))) (* (+ (- x1) (+ x2 x3)) x4))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (* (+ (- x1 x2) (- x3 x4)) (* x2 (- (+ x3 x1) (- x2 x4))))) (+ (+ (* x4 x4) (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3)))) (* (+ (- x1) (+ x2 x3)) x4))) (* (* (- (pow (+ (- x1) (+ x2 x3)) 3) (pow x4 3)) (* x4 x1)) (* (+ (- x1 x2) (- x3 x4)) (- (+ x2 x1) (+ x3 x4))))))
* [exit]simplify:  Simplified to (+ (* (* (* (- (+ x2 x1) (- x3 x4)) (* (- (+ x2 x1) (+ x3 x4)) x3)) (+ (- x1 x2) (- x3 x4))) (+ (+ (* x4 x4) (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3)))) (* (+ (- x1) (+ x2 x3)) x4))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (* (+ (- x1 x2) (- x3 x4)) (* x2 (- (+ x3 x1) (- x2 x4))))) (+ (+ (* x4 x4) (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3)))) (* (+ (- x1) (+ x2 x3)) x4))) (* (* (- (pow (+ (- x1) (+ x2 x3)) 3) (pow x4 3)) (* x4 x1)) (* (+ (- x1 x2) (- x3 x4)) (- (+ x2 x1) (+ x3 x4))))))
* [enter]simplify:  Simplifying (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (- (- (+ x1 x2) x3) x4))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (47 enodes)
* * [misc]simplify:  iters left: 4 (135 enodes)
* * [misc]simplify:  iters left: 3 (385 enodes)
* [exit]simplify:  Simplified to (* (+ (+ (* x4 x4) (* (+ (- x1) (+ x3 x2)) (+ (- x1) (+ x3 x2)))) (* (+ (- x1) (+ x3 x2)) x4)) (* (+ (- x1 x2) (- x3 x4)) (- (+ x1 x2) (+ x4 x3))))
* [exit]simplify:  Simplified to (* (+ (+ (* x4 x4) (* (+ (- x1) (+ x3 x2)) (+ (- x1) (+ x3 x2)))) (* (+ (- x1) (+ x3 x2)) x4)) (* (+ (- x1 x2) (- x3 x4)) (- (+ x1 x2) (+ x4 x3))))
* * * * [misc]progress:  [ 58 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))))
* * [misc]simplify:  iters left: 6 (40 enodes)
* * [misc]simplify:  iters left: 5 (129 enodes)
* * [misc]simplify:  iters left: 4 (390 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (* (- (+ x3 x1) x2) (- (+ x3 x1) x2)) (* x4 (- (- x4 x3) (- x1 x2)))) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* x4 x4) (* x3 x4)) (* (* x3 (+ (- x2 x3) x1)) (* (+ (- x2 x3) x1) (+ (- x2 x3) x1))))) (* (* (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)) (* x4 x1)) (* (+ (* (- (+ x3 x1) x2) (- (+ x3 x1) x2)) (* x4 (- (- x4 x3) (- x1 x2)))) (- (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))) (* x4 x4))))) (* (* (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* x4 x4) (* x4 x2)) (* (* x2 (- (+ x3 x1) x2)) (* (- (+ x3 x1) x2) (- (+ x3 x1) x2))))))
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (* (- (+ x3 x1) x2) (- (+ x3 x1) x2)) (* x4 (- (- x4 x3) (- x1 x2)))) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* x4 x4) (* x3 x4)) (* (* x3 (+ (- x2 x3) x1)) (* (+ (- x2 x3) x1) (+ (- x2 x3) x1))))) (* (* (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)) (* x4 x1)) (* (+ (* (- (+ x3 x1) x2) (- (+ x3 x1) x2)) (* x4 (- (- x4 x3) (- x1 x2)))) (- (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))) (* x4 x4))))) (* (* (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* x4 x4) (* x4 x2)) (* (* x2 (- (+ x3 x1) x2)) (* (- (+ x3 x1) x2) (- (+ x3 x1) x2))))))
* [enter]simplify:  Simplifying (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (65 enodes)
* * [misc]simplify:  iters left: 4 (191 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* (+ x2 (- x1 x3)) (+ x2 (- x1 x3))) (* (- (- x4 x1) (- x2 x3)) x4)) (+ x3 (+ (+ x4 x2) (- x1)))) (+ (* (+ x3 (- x1 x2)) (+ x3 (- x1 x2))) (* (+ (- x4 x1) (- x2 x3)) x4)))
* [exit]simplify:  Simplified to (* (* (+ (* (+ x2 (- x1 x3)) (+ x2 (- x1 x3))) (* (- (- x4 x1) (- x2 x3)) x4)) (+ x3 (+ (+ x4 x2) (- x1)))) (+ (* (+ x3 (- x1 x2)) (+ x3 (- x1 x2))) (* (+ (- x4 x1) (- x2 x3)) x4)))
* * * * [misc]progress:  [ 59 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (- (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))))
* * [misc]simplify:  iters left: 6 (37 enodes)
* * [misc]simplify:  iters left: 5 (108 enodes)
* * [misc]simplify:  iters left: 4 (315 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (+ (- x2 x3) (+ x1 x4)) (* (- (+ x2 x1) (+ x3 x4)) x3)) (- (* x4 x4) (* (- x1 (- x2 x3)) (- (- x4 x3) (- x1 x2))))) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (- (* x4 x4) (* (- x1 (- x2 x3)) (- (- x4 x3) (- x1 x2))))) (* (* x4 x1) (- (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))) (* x4 x4)))) (* (* (- (+ x2 x1) (+ x3 x4)) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* x4 x4) (* x4 x2)) (* (* x2 (- x1 (- x2 x3))) (* (- x1 (- x2 x3)) (- x1 (- x2 x3))))))))
* [exit]simplify:  Simplified to (+ (* (* (* (+ (- x2 x3) (+ x1 x4)) (* (- (+ x2 x1) (+ x3 x4)) x3)) (- (* x4 x4) (* (- x1 (- x2 x3)) (- (- x4 x3) (- x1 x2))))) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (- (* x4 x4) (* (- x1 (- x2 x3)) (- (- x4 x3) (- x1 x2))))) (* (* x4 x1) (- (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))) (* x4 x4)))) (* (* (- (+ x2 x1) (+ x3 x4)) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* x4 x4) (* x4 x2)) (* (* x2 (- x1 (- x2 x3))) (* (- x1 (- x2 x3)) (- x1 (- x2 x3))))))))
* [enter]simplify:  Simplifying (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (- (- (+ x1 x2) x3) x4))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (52 enodes)
* * [misc]simplify:  iters left: 4 (135 enodes)
* * [misc]simplify:  iters left: 3 (388 enodes)
* [exit]simplify:  Simplified to (* (* (- (+ x1 x2) (+ x3 x4)) (+ (+ x4 (- x1)) (+ x3 x2))) (+ (* (+ x3 (- x1 x2)) (+ x3 (- x1 x2))) (* x4 (- (- x4 x3) (- x1 x2)))))
* [exit]simplify:  Simplified to (* (* (- (+ x1 x2) (+ x3 x4)) (+ (+ x4 (- x1)) (+ x3 x2))) (+ (* (+ x3 (- x1 x2)) (+ x3 (- x1 x2))) (* x4 (- (- x4 x3) (- x1 x2)))))
* * * * [misc]progress:  [ 60 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (- (+ (- x1 x2) x3) x4)) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (- (+ (- x1 x2) x3) x4)) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))))
* * [misc]simplify:  iters left: 6 (37 enodes)
* * [misc]simplify:  iters left: 5 (101 enodes)
* * [misc]simplify:  iters left: 4 (279 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* (+ x3 (+ (+ x4 x2) (- x1))) x2) (* (- (+ x3 x1) (+ x2 x4)) (+ (- x1 x2) (+ x3 x4)))) (* (* (- (+ x3 x1) (+ x2 x4)) (* x4 x1)) (- (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3))) (* x4 x4)))) (- (* x4 x4) (* (+ x2 (- x1 x3)) (- (- x4 x1) (- x2 x3))))) (* (* (+ x3 (+ (+ x4 x2) (- x1))) (* (- (+ x3 x1) (+ x2 x4)) x3)) (+ (pow (+ x2 (- x1 x3)) 3) (pow x4 3))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* (+ x3 (+ (+ x4 x2) (- x1))) x2) (* (- (+ x3 x1) (+ x2 x4)) (+ (- x1 x2) (+ x3 x4)))) (* (* (- (+ x3 x1) (+ x2 x4)) (* x4 x1)) (- (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3))) (* x4 x4)))) (- (* x4 x4) (* (+ x2 (- x1 x3)) (- (- x4 x1) (- x2 x3))))) (* (* (+ x3 (+ (+ x4 x2) (- x1))) (* (- (+ x3 x1) (+ x2 x4)) x3)) (+ (pow (+ x2 (- x1 x3)) 3) (pow x4 3))))
* [enter]simplify:  Simplifying (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (46 enodes)
* * [misc]simplify:  iters left: 4 (113 enodes)
* * [misc]simplify:  iters left: 3 (327 enodes)
* [exit]simplify:  Simplified to (* (- (* x4 x4) (* (+ (- x2 x3) x1) (- (- x4 x1) (- x2 x3)))) (* (+ (- x1 x2) (- x3 x4)) (+ x3 (+ (+ x2 x4) (- x1)))))
* [exit]simplify:  Simplified to (* (- (* x4 x4) (* (+ (- x2 x3) x1) (- (- x4 x1) (- x2 x3)))) (* (+ (- x1 x2) (- x3 x4)) (+ x3 (+ (+ x2 x4) (- x1)))))
* * * * [misc]progress:  [ 61 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (- (+ (- x1 x2) x3) x4)) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (- (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (- (+ (- x1 x2) x3) x4)) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))))
* * [misc]simplify:  iters left: 6 (32 enodes)
* * [misc]simplify:  iters left: 5 (77 enodes)
* * [misc]simplify:  iters left: 4 (210 enodes)
* [exit]simplify:  Simplified to (+ (* (- (+ x2 x1) (+ x3 x4)) (+ (* (* (+ x3 (+ (+ x4 x2) (- x1))) (* (+ (- x1 x2) (+ x3 x4)) x2)) (+ (- x1 x2) (- x3 x4))) (* (* (+ (- x1 x2) (- x3 x4)) (* x4 x1)) (- (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))) (* x4 x4))))) (* (* (+ x3 (+ (+ x4 x2) (- x1))) (* (+ (- x1 x2) (- x3 x4)) x3)) (* (- (+ x2 x1) (+ x3 x4)) (+ (- x2 x3) (+ x1 x4)))))
* [exit]simplify:  Simplified to (+ (* (- (+ x2 x1) (+ x3 x4)) (+ (* (* (+ x3 (+ (+ x4 x2) (- x1))) (* (+ (- x1 x2) (+ x3 x4)) x2)) (+ (- x1 x2) (- x3 x4))) (* (* (+ (- x1 x2) (- x3 x4)) (* x4 x1)) (- (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))) (* x4 x4))))) (* (* (+ x3 (+ (+ x4 x2) (- x1))) (* (+ (- x1 x2) (- x3 x4)) x3)) (* (- (+ x2 x1) (+ x3 x4)) (+ (- x2 x3) (+ x1 x4)))))
* [enter]simplify:  Simplifying (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (- (- (+ x1 x2) x3) x4))
* * [misc]simplify:  iters left: 6 (16 enodes)
* * [misc]simplify:  iters left: 5 (32 enodes)
* * [misc]simplify:  iters left: 4 (69 enodes)
* * [misc]simplify:  iters left: 3 (196 enodes)
* [exit]simplify:  Simplified to (* (+ (+ (- x1) (+ x2 x4)) x3) (* (+ (- x3 x4) (- x1 x2)) (- (+ x1 x2) (+ x3 x4))))
* [exit]simplify:  Simplified to (* (+ (+ (- x1) (+ x2 x4)) x3) (* (+ (- x3 x4) (- x1 x2)) (- (+ x1 x2) (+ x3 x4))))
* * * * [misc]progress:  [ 62 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 3) (pow (* x2 (+ (+ (- x1 x2) x3) x4)) 3)) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))) (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 3) (pow (* x2 (+ (+ (- x1 x2) x3) x4)) 3)) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))))
* * [misc]simplify:  iters left: 6 (37 enodes)
* * [misc]simplify:  iters left: 5 (107 enodes)
* * [misc]simplify:  iters left: 4 (276 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* x3 (- x2 (- x3 x1)))) (* (* x3 x4) (* x4 x4))) (- (* (* (- (+ x4 x1) (- x2 x3)) x2) (* (- (+ x4 x1) (- x2 x3)) x2)) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (* (- (+ x4 x1) (- x2 x3)) x2) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))))) (+ (* (+ (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* (- (- x4 x1) (- x2 x3)) x4)) (pow (* (- (+ x4 x1) (- x2 x3)) x2) 3)) (* (* (+ (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* (- (- x4 x1) (- x2 x3)) x4)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* x3 (- x2 (- x3 x1)))) (* (* x3 x4) (* x4 x4))) (- (* (* (- (+ x4 x1) (- x2 x3)) x2) (* (- (+ x4 x1) (- x2 x3)) x2)) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (* (- (+ x4 x1) (- x2 x3)) x2) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))))) (+ (* (+ (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* (- (- x4 x1) (- x2 x3)) x4)) (pow (* (- (+ x4 x1) (- x2 x3)) x2) 3)) (* (* (+ (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* (- (- x4 x1) (- x2 x3)) x4)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))))))
* [enter]simplify:  Simplifying (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (27 enodes)
* * [misc]simplify:  iters left: 5 (71 enodes)
* * [misc]simplify:  iters left: 4 (173 enodes)
* * [misc]simplify:  iters left: 3 (376 enodes)
* [exit]simplify:  Simplified to (* (+ (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* (+ (- x4 x2) (- x3 x1)) x4)) (+ (* (* x2 (- (+ x4 x1) (- x2 x3))) (- (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))))
* [exit]simplify:  Simplified to (* (+ (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* (+ (- x4 x2) (- x3 x1)) x4)) (+ (* (* x2 (- (+ x4 x1) (- x2 x3))) (- (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))))
* * * * [misc]progress:  [ 63 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 3) (pow (* x2 (+ (+ (- x1 x2) x3) x4)) 3)) (- (- (+ x1 x2) x3) x4)) (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))) (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (- (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 3) (pow (* x2 (+ (+ (- x1 x2) x3) x4)) 3)) (- (- (+ x1 x2) x3) x4)) (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))))
* * [misc]simplify:  iters left: 6 (33 enodes)
* * [misc]simplify:  iters left: 5 (83 enodes)
* * [misc]simplify:  iters left: 4 (192 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- (+ x2 x1) (- x3 x4)) (- (+ x2 x1) (+ x3 x4))) x3) (+ (* (* (+ (+ x3 x4) (- x1 x2)) x2) (- (* (+ (+ x3 x4) (- x1 x2)) x2) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1)))) (* (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1)) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (pow (* x4 x1) 3)) (pow (+ (+ (- x1) x2) (- x3 x4)) 3)) (* (* (- (+ x2 x1) (+ x3 x4)) (pow x2 3)) (pow (+ (+ x3 x4) (- x1 x2)) 3))))
* [exit]simplify:  Simplified to (+ (* (* (* (- (+ x2 x1) (- x3 x4)) (- (+ x2 x1) (+ x3 x4))) x3) (+ (* (* (+ (+ x3 x4) (- x1 x2)) x2) (- (* (+ (+ x3 x4) (- x1 x2)) x2) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1)))) (* (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1)) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (pow (* x4 x1) 3)) (pow (+ (+ (- x1) x2) (- x3 x4)) 3)) (* (* (- (+ x2 x1) (+ x3 x4)) (pow x2 3)) (pow (+ (+ x3 x4) (- x1 x2)) 3))))
* [enter]simplify:  Simplifying (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (- (- (+ x1 x2) x3) x4))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (56 enodes)
* * [misc]simplify:  iters left: 4 (120 enodes)
* * [misc]simplify:  iters left: 3 (281 enodes)
* [exit]simplify:  Simplified to (* (- (+ x2 x1) (+ x3 x4)) (- (* (* x2 (+ (+ x3 x4) (- x1 x2))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (* x2 (+ (+ x3 x4) (- x1 x2))) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))))))
* [exit]simplify:  Simplified to (* (- (+ x2 x1) (+ x3 x4)) (- (* (* x2 (+ (+ x3 x4) (- x1 x2))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (* x2 (+ (+ x3 x4) (- x1 x2))) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))))))
* * * * [misc]progress:  [ 64 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (- (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))) (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (- (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))))
* * [misc]simplify:  iters left: 6 (33 enodes)
* * [misc]simplify:  iters left: 5 (87 enodes)
* * [misc]simplify:  iters left: 4 (185 enodes)
* * [misc]simplify:  iters left: 3 (444 enodes)
* [exit]simplify:  Simplified to (* (+ (+ (* (* x3 x4) (* x4 x4)) (* (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x3 (+ (- x2 x3) x1)))) (* (+ (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1)) (* x2 (+ (- x1 x2) (+ x3 x4)))) (- (* x4 x4) (* (+ (- x2 x3) x1) (+ (- x4 x2) (- x3 x1)))))) (- (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1)) (* x2 (+ (- x1 x2) (+ x3 x4)))))
* [exit]simplify:  Simplified to (* (+ (+ (* (* x3 x4) (* x4 x4)) (* (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x3 (+ (- x2 x3) x1)))) (* (+ (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1)) (* x2 (+ (- x1 x2) (+ x3 x4)))) (- (* x4 x4) (* (+ (- x2 x3) x1) (+ (- x4 x2) (- x3 x1)))))) (- (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1)) (* x2 (+ (- x1 x2) (+ x3 x4)))))
* [enter]simplify:  Simplifying (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (56 enodes)
* * [misc]simplify:  iters left: 4 (110 enodes)
* * [misc]simplify:  iters left: 3 (198 enodes)
* * [misc]simplify:  iters left: 2 (297 enodes)
* [exit]simplify:  Simplified to (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x2 (+ (- x1 x2) (+ x3 x4)))) (+ (* (- (- x4 x1) (- x2 x3)) x4) (* (- (+ x2 x1) x3) (- (+ x2 x1) x3))))
* [exit]simplify:  Simplified to (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x2 (+ (- x1 x2) (+ x3 x4)))) (+ (* (- (- x4 x1) (- x2 x3)) x4) (* (- (+ x2 x1) x3) (- (+ x2 x1) x3))))
* * * * [misc]progress:  [ 65 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (- (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (- (- (+ x1 x2) x3) x4)) (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))) (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (- (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (- (- (+ x1 x2) x3) x4)) (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))))
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (62 enodes)
* * [misc]simplify:  iters left: 4 (126 enodes)
* * [misc]simplify:  iters left: 3 (322 enodes)
* [exit]simplify:  Simplified to (* (- (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1)) (* x2 (- (+ x4 x1) (- x2 x3)))) (+ (* (* x3 (+ (- x2 x3) (+ x4 x1))) (+ x1 (- (- x2 x3) x4))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (* x4 x1)) (+ (+ (- x1) x2) (- x3 x4))) (* (* (- (+ x2 x1) (+ x3 x4)) (- (+ x4 x1) (- x2 x3))) x2))))
* [exit]simplify:  Simplified to (* (- (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1)) (* x2 (- (+ x4 x1) (- x2 x3)))) (+ (* (* x3 (+ (- x2 x3) (+ x4 x1))) (+ x1 (- (- x2 x3) x4))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (* x4 x1)) (+ (+ (- x1) x2) (- x3 x4))) (* (* (- (+ x2 x1) (+ x3 x4)) (- (+ x4 x1) (- x2 x3))) x2))))
* [enter]simplify:  Simplifying (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (- (+ x1 x2) x3) x4))
* * [misc]simplify:  iters left: 6 (19 enodes)
* * [misc]simplify:  iters left: 5 (41 enodes)
* * [misc]simplify:  iters left: 4 (75 enodes)
* * [misc]simplify:  iters left: 3 (147 enodes)
* * [misc]simplify:  iters left: 2 (219 enodes)
* * [misc]simplify:  iters left: 1 (303 enodes)
* [exit]simplify:  Simplified to (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x2 (- (+ x3 x1) (- x2 x4)))) (- (- x2 x3) (- x4 x1)))
* [exit]simplify:  Simplified to (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x2 (- (+ x3 x1) (- x2 x4)))) (- (- x2 x3) (- x4 x1)))
* * * * [misc]progress:  [ 66 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (pow (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) 3) (pow (* x3 (+ (- (+ x1 x2) x3) x4)) 3)) (+ (* (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (- (* (* x3 (+ (- (+ x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (pow (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) 3) (pow (* x3 (+ (- (+ x1 x2) x3) x4)) 3))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (130 enodes)
* * [misc]simplify:  iters left: 3 (347 enodes)
* [exit]simplify:  Simplified to (+ (pow (* x3 (- (+ x2 x1) (- x3 x4))) 3) (pow (+ (* x2 (- (+ x3 x1) (- x2 x4))) (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1))) 3))
* [exit]simplify:  Simplified to (+ (pow (* x3 (- (+ x2 x1) (- x3 x4))) 3) (pow (+ (* x2 (- (+ x3 x1) (- x2 x4))) (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1))) 3))
* [enter]simplify:  Simplifying (+ (* (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (- (* (* x3 (+ (- (+ x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (70 enodes)
* * [misc]simplify:  iters left: 4 (158 enodes)
* * [misc]simplify:  iters left: 3 (337 enodes)
* [exit]simplify:  Simplified to (- (* (* x3 (- (+ x2 x1) (- x3 x4))) (* x3 (- (+ x2 x1) (- x3 x4)))) (* (- (- (* x3 (- (+ x2 x1) (- x3 x4))) (* x2 (- (+ x4 x1) (- x2 x3)))) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))) (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1)))))
* [exit]simplify:  Simplified to (- (* (* x3 (- (+ x2 x1) (- x3 x4))) (* x3 (- (+ x2 x1) (- x3 x4)))) (* (- (- (* x3 (- (+ x2 x1) (- x3 x4))) (* x2 (- (+ x4 x1) (- x2 x3)))) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))) (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1)))))
* * * * [misc]progress:  [ 67 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (* 1 (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 68 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (- (* (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (* (* x3 (+ (- (+ x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4)))) (- (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (* (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (* (* x3 (+ (- (+ x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (155 enodes)
* * [misc]simplify:  iters left: 3 (372 enodes)
* [exit]simplify:  Simplified to (* (+ (- (* x2 (- (+ x4 x1) (- x2 x3))) (* x3 (- (+ x2 x1) (- x3 x4)))) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))) (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* x3 (- (+ x2 x1) (- x3 x4)))) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))))
* [exit]simplify:  Simplified to (* (+ (- (* x2 (- (+ x4 x1) (- x2 x3))) (* x3 (- (+ x2 x1) (- x3 x4)))) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))) (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* x3 (- (+ x2 x1) (- x3 x4)))) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))))
* [enter]simplify:  Simplifying (- (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (53 enodes)
* * [misc]simplify:  iters left: 4 (95 enodes)
* * [misc]simplify:  iters left: 3 (165 enodes)
* * [misc]simplify:  iters left: 2 (239 enodes)
* * [misc]simplify:  iters left: 1 (312 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1)) (- (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)))
* [exit]simplify:  Simplified to (+ (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1)) (- (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)))
* * * * [misc]progress:  [ 69 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (- (+ x1 x2) x3))) (* x3 x4)) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (- (+ x1 x2) x3)))
* * [misc]simplify:  iters left: 6 (19 enodes)
* * [misc]simplify:  iters left: 5 (43 enodes)
* * [misc]simplify:  iters left: 4 (80 enodes)
* * [misc]simplify:  iters left: 3 (133 enodes)
* * [misc]simplify:  iters left: 2 (191 enodes)
* * [misc]simplify:  iters left: 1 (253 enodes)
* [exit]simplify:  Simplified to (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (- (+ x2 x1) x3) x3)) (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1)))
* [exit]simplify:  Simplified to (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (- (+ x2 x1) x3) x3)) (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1)))
* * * * [misc]progress:  [ 70 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (- (+ x1 x2) x3) x3)) (* x4 x3)) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (- (+ x1 x2) x3) x3))
* * [misc]simplify:  iters left: 6 (19 enodes)
* * [misc]simplify:  iters left: 5 (43 enodes)
* * [misc]simplify:  iters left: 4 (80 enodes)
* * [misc]simplify:  iters left: 3 (133 enodes)
* * [misc]simplify:  iters left: 2 (191 enodes)
* * [misc]simplify:  iters left: 1 (253 enodes)
* [exit]simplify:  Simplified to (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (- (+ x2 x1) x3) x3)) (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1)))
* [exit]simplify:  Simplified to (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (- (+ x2 x1) x3) x3)) (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1)))
* * * * [misc]progress:  [ 71 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (+ (* x2 (+ (+ (- x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* x2 (+ (+ (- x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (38 enodes)
* * [misc]simplify:  iters left: 4 (70 enodes)
* * [misc]simplify:  iters left: 3 (113 enodes)
* * [misc]simplify:  iters left: 2 (149 enodes)
* * [misc]simplify:  iters left: 1 (176 enodes)
* [exit]simplify:  Simplified to (+ (* (- (+ x1 x2) (- x3 x4)) x3) (* x2 (+ (+ x4 x3) (- x1 x2))))
* [exit]simplify:  Simplified to (+ (* (- (+ x1 x2) (- x3 x4)) x3) (* x2 (+ (+ x4 x3) (- x1 x2))))
* * * * [misc]progress:  [ 72 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (* x3 (+ (- (+ x1 x2) x3) x4)) (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 73 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ 0 (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ 0 (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (58 enodes)
* * [misc]simplify:  iters left: 4 (101 enodes)
* * [misc]simplify:  iters left: 3 (159 enodes)
* * [misc]simplify:  iters left: 2 (237 enodes)
* * [misc]simplify:  iters left: 1 (336 enodes)
* [exit]simplify:  Simplified to (+ (* x3 (- (+ (- x1 x3) (+ x4 x2)) (+ x1 (* x4 x2)))) (- (* (- (+ x1 x4) (- x2 x3)) x2) (+ x4 (* x1 x2))))
* * * * [misc]progress:  [ 74 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (31 enodes)
* * [misc]simplify:  iters left: 5 (76 enodes)
* * [misc]simplify:  iters left: 4 (139 enodes)
* * [misc]simplify:  iters left: 3 (245 enodes)
* * [misc]simplify:  iters left: 2 (412 enodes)
* [exit]simplify:  Simplified to (- (+ (+ (* (* x1 x4) (+ (- x3 x4) x2)) (* x2 (+ (+ x4 x3) (- x1 x2)))) (* x3 (- (+ (- x2 x3) (+ x1 x4)) (+ x1 (* x4 x2))))) (+ (* x2 x1) x4))
* * * * [misc]progress:  [ 75 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (31 enodes)
* * [misc]simplify:  iters left: 5 (76 enodes)
* * [misc]simplify:  iters left: 4 (139 enodes)
* * [misc]simplify:  iters left: 3 (245 enodes)
* * [misc]simplify:  iters left: 2 (412 enodes)
* [exit]simplify:  Simplified to (- (+ (+ (* (* x1 x4) (+ (- x3 x4) x2)) (* x2 (+ (+ x4 x3) (- x1 x2)))) (* x3 (- (+ (- x2 x3) (+ x1 x4)) (+ x1 (* x4 x2))))) (+ (* x2 x1) x4))
* * * * [misc]progress:  [ 76 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) 0) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) 0) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (27 enodes)
* * [misc]simplify:  iters left: 5 (66 enodes)
* * [misc]simplify:  iters left: 4 (118 enodes)
* * [misc]simplify:  iters left: 3 (196 enodes)
* * [misc]simplify:  iters left: 2 (279 enodes)
* * [misc]simplify:  iters left: 1 (379 enodes)
* [exit]simplify:  Simplified to (- (- (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (- (+ x4 x1) (- x3 x2)) x3)) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))) (* (+ x2 x3) x1)) x4)
* * * * [misc]progress:  [ 77 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x4 x3))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x4 x3))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (69 enodes)
* * [misc]simplify:  iters left: 4 (123 enodes)
* * [misc]simplify:  iters left: 3 (204 enodes)
* * [misc]simplify:  iters left: 2 (291 enodes)
* * [misc]simplify:  iters left: 1 (402 enodes)
* [exit]simplify:  Simplified to (- (- (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)) (* (- (+ (- x1) x2) (- x4 x3)) (* x4 x1))) (* x3 (+ (* x4 x2) x1))) (+ x4 (* x1 x2)))
* * * * [misc]progress:  [ 78 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x4 x3))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x4 x3))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (69 enodes)
* * [misc]simplify:  iters left: 4 (123 enodes)
* * [misc]simplify:  iters left: 3 (204 enodes)
* * [misc]simplify:  iters left: 2 (291 enodes)
* * [misc]simplify:  iters left: 1 (402 enodes)
* [exit]simplify:  Simplified to (- (- (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)) (* (- (+ (- x1) x2) (- x4 x3)) (* x4 x1))) (* x3 (+ (* x4 x2) x1))) (+ x4 (* x1 x2)))
* * * * [misc]progress:  [ 79 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (+ (* x1 x3) (* x2 x3)) (pow x3 2))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (+ (* x1 x3) (* x2 x3)) (pow x3 2))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (68 enodes)
* * [misc]simplify:  iters left: 4 (114 enodes)
* * [misc]simplify:  iters left: 3 (199 enodes)
* * [misc]simplify:  iters left: 2 (336 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (+ x3 (+ (- x1) (- x2 x4))) (* x4 x1)) (+ (* x1 x3) (* x2 (- (+ x4 x1) (- x2 x3))))) (- (- (* x3 (- (- x2 x3) (* x4 x2))) (* (+ x2 x3) x1)) x4))
* * * * [misc]progress:  [ 80 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* x1 x3) (+ (* x4 x3) (* x2 x3)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* x1 x3) (+ (* x4 x3) (* x2 x3)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (27 enodes)
* * [misc]simplify:  iters left: 5 (62 enodes)
* * [misc]simplify:  iters left: 4 (118 enodes)
* * [misc]simplify:  iters left: 3 (213 enodes)
* * [misc]simplify:  iters left: 2 (339 enodes)
* [exit]simplify:  Simplified to (+ (+ (* x2 (+ (+ x3 x4) (- x1 x2))) (* (+ x3 (+ (- x1) (- x2 x4))) (* x4 x1))) (- (* x3 (- (+ x4 (+ x2 x1)) (+ x1 (* x4 x2)))) (+ x4 (* x1 x2))))
* * * * [misc]progress:  [ 81 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* x1 x3) (+ (* x4 x3) (* x2 x3)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* x1 x3) (+ (* x4 x3) (* x2 x3)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (27 enodes)
* * [misc]simplify:  iters left: 5 (62 enodes)
* * [misc]simplify:  iters left: 4 (118 enodes)
* * [misc]simplify:  iters left: 3 (213 enodes)
* * [misc]simplify:  iters left: 2 (339 enodes)
* [exit]simplify:  Simplified to (+ (+ (* x2 (+ (+ x3 x4) (- x1 x2))) (* (+ x3 (+ (- x1) (- x2 x4))) (* x4 x1))) (- (* x3 (- (+ x4 (+ x2 x1)) (+ x1 (* x4 x2)))) (+ x4 (* x1 x2))))
* * * * [misc]progress:  [ 82 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- 0 (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- 0 (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (68 enodes)
* * [misc]simplify:  iters left: 2 (99 enodes)
* * [misc]simplify:  iters left: 1 (150 enodes)
* [exit]simplify:  Simplified to (- (* (* x3 x4) (- x2)) (+ (* x1 (+ x2 x3)) x4))
* * * * [misc]progress:  [ 83 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (41 enodes)
* * [misc]simplify:  iters left: 4 (69 enodes)
* * [misc]simplify:  iters left: 3 (103 enodes)
* * [misc]simplify:  iters left: 2 (139 enodes)
* * [misc]simplify:  iters left: 1 (172 enodes)
* [exit]simplify:  Simplified to (- (- (* (* x1 x4) (- x3 (- x4 x2))) (* (* x4 x2) x3)) (+ (* (+ x2 x3) x1) x4))
* * * * [misc]progress:  [ 84 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (41 enodes)
* * [misc]simplify:  iters left: 4 (69 enodes)
* * [misc]simplify:  iters left: 3 (103 enodes)
* * [misc]simplify:  iters left: 2 (139 enodes)
* * [misc]simplify:  iters left: 1 (172 enodes)
* [exit]simplify:  Simplified to (- (- (* (* x1 x4) (- x3 (- x4 x2))) (* (* x4 x2) x3)) (+ (* (+ x2 x3) x1) x4))
* * * [misc]progress:  adding candidates to table
* * [misc]progress:  iteration 2 / 4
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 4 ] rewriting at (2 1 1 1 1 1 1)
* * * * [misc]progress:  [ 2 / 4 ] rewriting at (2 1 1 1 2)
* * * * [misc]progress:  [ 3 / 4 ] rewriting at (2 1 1 1 1 2)
* * * * [misc]progress:  [ 4 / 4 ] rewriting at (2 1 1 1 1)
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 4 ] generating series at (2 1 1 1 1 1 1)
* [misc]approximate:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 x2) into x2
* [misc]backup-simplify:  Simplify (+ x2 x3) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ (+ x2 x3) (- x4)) into (- (+ x2 x3) x4)
* [misc]backup-simplify:  Simplify (* 0 (- (+ x2 x3) x4)) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (+ (* 0 -1) (* x4 (- (+ x2 x3) x4))) into (- (+ (* x2 x4) (* x4 x3)) (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* x2 x4) (* x4 x3)) (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* x2 x4) (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* x4 -1) (* 0 (- (+ x2 x3) x4)))) into (- x4)
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]approximate:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* 1 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) -1) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ -1 x4) in x4
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ -1 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x2)) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) (- (/ 1 x4))) into (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1)) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) (/ 1 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) (/ 1 (pow x4 2))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- (/ 0 1) (+ (* -1 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1) (+ (* -1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (* -1 (* 1 (* 1 (* (pow (/ 1 x4) -2) (/ 1 (/ 1 x1)))))) (+ (* 1 (* 1 (* (/ 1 (/ 1 x2)) (* (/ 1 (/ 1 x4)) (/ 1 (/ 1 x1)))))) (* 1 (* (/ 1 (/ 1 x3)) (* 1 (* (/ 1 (/ 1 x4)) (/ 1 (/ 1 x1)))))))) into (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2)))
* [misc]approximate:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (* -1 (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) 1) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ -1 x2)) into (- (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2)) (/ -1 x3)) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (- (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x3))) (/ 1 x4)) into (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (* 0 (/ -1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1)) into (- (/ 1 (pow x4 2)) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (pow x4 2)) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ -1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (/ 1 x2) (/ 1 x3))) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (/ 1 x2) (/ 1 x3)))) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (/ 1 x3)) into (- (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* 1 (* (pow (/ 1 (- x4)) -2) (/ 1 (/ 1 (- x1))))))) (+ (* -1 (* 1 (* (/ 1 (/ 1 (- x2))) (* (/ 1 (/ 1 (- x4))) (/ 1 (/ 1 (- x1))))))) (* -1 (* (/ 1 (/ 1 (- x3))) (* 1 (* (/ 1 (/ 1 (- x4))) (/ 1 (/ 1 (- x1))))))))) into (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2)))
* * * * [misc]progress:  [ 2 / 4 ] generating series at (2 1 1 1 2)
* [misc]approximate:  Taking taylor expansion of (* x2 (* x3 x4)) in (x2 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* x2 (* x3 x4)) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (* x3 x4) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 (* x3 x4)) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (* x3 x4) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x2 (* x3 x4)) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x2 (* x3 x4)) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x3 x4) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* 0 (* x4 x3)) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x3 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x4 x3))) into (* x4 x3)
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x3 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (* x4 x3)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]approximate:  Taking taylor expansion of (* (/ 1 x2) (* (/ 1 x3) (/ 1 x4))) in (x2 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (* (/ 1 x3) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (* (/ 1 x3) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (* (/ 1 x3) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (* (/ 1 x3) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* (/ 1 x3) (/ 1 x4)) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (* 1 (/ 1 (* x4 x3))) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 (/ 1 (* x4 x3)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 (/ 1 (* x4 x3))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (* x4 x3)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 1 (* (/ 1 (/ 1 x4)) (* (/ 1 (/ 1 x3)) (/ 1 (/ 1 x2))))) into (* x2 (* x4 x3))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 (- x2)) (* (/ 1 (- x3)) (/ 1 (- x4)))) in (x2 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (* (/ 1 (- x3)) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (* (/ 1 (- x3)) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (* (/ 1 (- x3)) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (* (/ 1 (- x3)) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (* (/ -1 x3) (/ -1 x4)) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (* -1 (/ 1 (* x4 x3))) into (/ -1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (/ -1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ -1 x4) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ -1 x4) in x4
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ -1 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (* 0 (/ -1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (* 0 (/ 1 (* x4 x3)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 x4) (+ (* (/ -1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1) (+ (* -1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 0) (* 0 (/ -1 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ 1 (* x4 x3))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 x4) (+ (* (/ -1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1) (+ (* -1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (* x4 x3)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 x4) (+ (* (/ -1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* -1 (* (/ 1 (/ 1 (- x4))) (* (/ 1 (/ 1 (- x3))) (/ 1 (/ 1 (- x2)))))) into (* x2 (* x4 x3))
* * * * [misc]progress:  [ 3 / 4 ] generating series at (2 1 1 1 1 2)
* [misc]approximate:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in (x3 x1 x2 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x1 x2) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) 0) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) x4) into (+ x1 (+ x2 x4))
* [misc]backup-simplify:  Simplify (* 0 (+ x1 (+ x2 x4))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ (* 0 -1) (* 1 (+ x1 (+ x2 x4)))) into (+ x1 (+ x2 x4))
* [misc]taylor:  Taking taylor expansion of (+ x1 (+ x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x2 x4) into (+ x2 x4)
* [misc]backup-simplify:  Simplify (+ 0 (+ x2 x4)) into (+ x2 x4)
* [misc]taylor:  Taking taylor expansion of (+ x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 0 x4) into x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 -1) (* 0 (+ x1 (+ x2 x4))))) into (- 1)
* [misc]taylor:  Taking taylor expansion of (- 1) in x1
* [misc]taylor:  Taking taylor expansion of 1 in x1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* x2 (* 1 x3)))) (+ (* 1 (* 1 (* 1 (* x1 x3)))) (* -1 (pow (* 1 (* 1 (* 1 x3))) 2)))) into (- (+ (* x1 x3) (* x2 x3)) (pow x3 2))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in (x3 x1 x2 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) (/ 1 x2)) into (+ (/ 1 x2) (/ 1 x1))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x1)) 0) into (+ (/ 1 x2) (/ 1 x1))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x1)) (/ 1 x4)) into (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))) (* 0 -1)) into (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))) (* 0 -1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x4)) into (+ (/ 1 x2) (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))) (* 0 -1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* 1 (* (/ 1 (/ 1 x1)) (/ 1 (/ 1 x3)))))) (+ (* 1 (* 1 (* (/ 1 (/ 1 x2)) (* 1 (/ 1 (/ 1 x3)))))) (* 1 (* (/ 1 (/ 1 x4)) (* 1 (* 1 (/ 1 (/ 1 x3)))))))) into (+ (* x1 x3) (+ (* x4 x3) (* x2 x3)))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in (x3 x1 x2 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* -1 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (/ -1 x1) (/ -1 x2)) into (- (+ (/ 1 x2) (/ 1 x1)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x1))) 0) into (- (+ (/ 1 x2) (/ 1 x1)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x1))) (/ -1 x4)) into (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))))) (* 0 1)) into (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))))) (* 0 1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x4)) into (+ (/ 1 x2) (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))))) (* 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* 1 (* (/ 1 (/ 1 (- x1))) (/ 1 (/ 1 (- x3))))))) (+ (* 1 (* 1 (* (/ 1 (/ 1 (- x2))) (* 1 (/ 1 (/ 1 (- x3))))))) (* 1 (* (/ 1 (/ 1 (- x4))) (* 1 (* 1 (/ 1 (/ 1 (- x3))))))))) into (+ (* x1 x3) (+ (* x4 x3) (* x2 x3)))
* * * * [misc]progress:  [ 4 / 4 ] generating series at (2 1 1 1 1)
* [misc]approximate:  Taking taylor expansion of (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ (- x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ (- x1 x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1 x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1 x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ (- x1 x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1 x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- x1 x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ (- x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ (- x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x3 (+ (- (+ x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 x2) into x2
* [misc]backup-simplify:  Simplify (+ x2 x3) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ (+ x2 x3) (- x4)) into (- (+ x2 x3) x4)
* [misc]backup-simplify:  Simplify (* 0 (- (+ x2 x3) x4)) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (+ 0 (- x2)) into (- x2)
* [misc]backup-simplify:  Simplify (+ (- x2) x3) into (- x3 x2)
* [misc]backup-simplify:  Simplify (+ (- x3 x2) x4) into (- (+ x4 x3) x2)
* [misc]backup-simplify:  Simplify (* x2 (- (+ x4 x3) x2)) into (* x2 (- (+ x4 x3) x2))
* [misc]backup-simplify:  Simplify (+ 0 (* x2 (- (+ x4 x3) x2))) into (- (+ (* x2 x4) (* x2 x3)) (pow x2 2))
* [misc]backup-simplify:  Simplify (+ 0 x2) into x2
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (+ x2 (- x3)) into (- x2 x3)
* [misc]backup-simplify:  Simplify (+ (- x2 x3) x4) into (- (+ x2 x4) x3)
* [misc]backup-simplify:  Simplify (* x3 (- (+ x2 x4) x3)) into (* (- (+ x2 x4) x3) x3)
* [misc]backup-simplify:  Simplify (+ (- (+ (* x2 x4) (* x2 x3)) (pow x2 2)) (* (- (+ x2 x4) x3) x3)) into (- (+ (* x2 x4) (+ (* x4 x3) (* 2 (* x2 x3)))) (+ (pow x3 2) (pow x2 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* x2 x4) (+ (* x4 x3) (* 2 (* x2 x3)))) (+ (pow x3 2) (pow x2 2))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* x2 x4) (+ (* x4 x3) (* 2 (* x2 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (* x4 x3) (* 2 (* x2 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (* 2 (* x2 x3)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (pow x3 2) (pow x2 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x4
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x4
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x4
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x4
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (* x2 x3) into (* x2 x3)
* [misc]backup-simplify:  Simplify (* 2 (* x2 x3)) into (* 2 (* x2 x3))
* [misc]backup-simplify:  Simplify (+ 0 (* 2 (* x2 x3))) into (* 2 (* x2 x3))
* [misc]backup-simplify:  Simplify (+ 0 (* 2 (* x2 x3))) into (* 2 (* x2 x3))
* [misc]backup-simplify:  Simplify (+ (pow x3 2) (pow x2 2)) into (+ (pow x3 2) (pow x2 2))
* [misc]backup-simplify:  Simplify (- (+ (pow x3 2) (pow x2 2))) into (- (+ (pow x3 2) (pow x2 2)))
* [misc]backup-simplify:  Simplify (+ (* 2 (* x2 x3)) (- (+ (pow x3 2) (pow x2 2)))) into (- (* 2 (* x2 x3)) (+ (pow x3 2) (pow x2 2)))
* [misc]taylor:  Taking taylor expansion of (- (* 2 (* x2 x3)) (+ (pow x3 2) (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (* x2 x3)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (pow x3 2) (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (* 2 0) into 0
* [misc]backup-simplify:  Simplify (+ (pow x3 2) 0) into (pow x3 2)
* [misc]backup-simplify:  Simplify (- (pow x3 2)) into (- (pow x3 2))
* [misc]backup-simplify:  Simplify (+ 0 (- (pow x3 2))) into (- (pow x3 2))
* [misc]taylor:  Taking taylor expansion of (- (pow x3 2)) in x3
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x3
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (+ (* 0 -1) (* x4 (- (+ x2 x3) x4))) into (- (+ (* x2 x4) (* x4 x3)) (pow x4 2))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 (- (+ x4 x3) x2))) into x2
* [misc]backup-simplify:  Simplify (+ (- (+ (* x2 x4) (* x4 x3)) (pow x4 2)) x2) into (- (+ (* x2 x4) (+ (* x4 x3) x2)) (pow x4 2))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ (* x3 1) (* 0 (- (+ x2 x4) x3))) into x3
* [misc]backup-simplify:  Simplify (+ (- (+ (* x2 x4) (+ (* x4 x3) x2)) (pow x4 2)) x3) into (- (+ (* x2 x4) (+ (* x4 x3) (+ x2 x3))) (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* x2 x4) (+ (* x4 x3) (+ x2 x3))) (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* x2 x4) (+ (* x4 x3) (+ x2 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (* x4 x3) (+ x2 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ x2 x3) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ x2 x3) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (+ 0 (+ x2 x3)) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (+ 0 (+ x2 x3)) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (+ (+ x2 x3) 0) into (+ x2 x3)
* [misc]taylor:  Taking taylor expansion of (+ x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (+ 0 x3) into x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (* x2 x3))) into 0
* [misc]backup-simplify:  Simplify (+ x3 0) into x3
* [misc]backup-simplify:  Simplify (+ x2 x3) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ x2 x3) 0) into (+ x2 x3)
* [misc]taylor:  Taking taylor expansion of (+ x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (+ 0 x3) into x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (+ (* 2 x3) (* 0 0)) into (* 2 x3)
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 x3) 0) into (* 2 x3)
* [misc]taylor:  Taking taylor expansion of (* 2 x3) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* 2 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* x4 -1) (* 0 (- (+ x2 x3) x4)))) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 (- (+ x4 x3) x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (- x4) 0) into (- x4)
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x3 0) (+ (* 0 1) (* 0 (- (+ x2 x4) x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (- x4) 0) into (- x4)
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ x3 0) into x3
* [misc]backup-simplify:  Simplify (+ x2 x3) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (+ (+ x2 x3) 0) into (+ x2 x3)
* [misc]taylor:  Taking taylor expansion of (+ x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (+ 0 x3) into x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (* x2 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x3 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x3 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x3)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x2 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x2 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x2)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]approximate:  Taking taylor expansion of (+ (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* 1 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) -1) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (+ (/ -1 x4) 0) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x4)) 0) into (- (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x2)) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) (- (/ 1 x4))) into (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1)) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) (/ 1 (pow x4 2)))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x2) 1) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) (/ 1 (pow x4 2))) (/ 1 x2)) into (- (+ (/ 1 x2) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) (/ 1 (pow x4 2)))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x3) 1) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) (/ 1 (pow x4 2))) (/ 1 x3)) into (- (+ (/ 1 x2) (+ (/ 1 x3) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))) (/ 1 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (+ (/ 1 x3) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))) (/ 1 (pow x4 2))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (/ 1 x3) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x3) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 x2)) into (- (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 x2))) into (- (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2)) (/ 1 x3)) into (- (/ 1 x3) (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x3) (/ 1 x2)) (/ 1 x4)) into (- (+ (/ 1 x3) (/ 1 x4)) (/ 1 x2))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x2) (- (+ (/ 1 x3) (/ 1 x4)) (/ 1 x2))) (* 0 1)) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2)))) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x2)) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (- (/ 1 x3)) into (- (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (- (/ 1 x3))) into (- (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2) (/ 1 x3)) (/ 1 x4)) into (- (+ (/ 1 x2) (/ 1 x4)) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x4)) (/ 1 x3))) (* 0 1)) into (- (+ (/ 1 (* x4 x3)) (/ 1 (* x2 x3))) (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2))) (- (+ (/ 1 (* x4 x3)) (/ 1 (* x2 x3))) (/ 1 (pow x3 2)))) into (- (+ (/ 1 (* x2 x4)) (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3))))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x2 x4)) (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3))))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 (* x2 x3))) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x2 x3) into (* x2 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x3)) into (/ 1 (* x2 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x4
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x4
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x4
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x4
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x3 2)) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ 0 (+ (/ 1 x2) (/ 1 x3))) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ 0 (+ (/ 1 x2) (/ 1 x3))) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x2) 0) (+ (* 0 (- (+ (/ 1 x3) (/ 1 x4)) (/ 1 x2))) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x4)) (/ 1 x3))) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) 0) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) 0) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4)))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x2) 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x3) (/ 1 x4)) (/ 1 x2))) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x4)) (/ 1 x3))) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (* 2 (/ 1 (* x2 x3))) into (/ 2 (* x2 x3))
* [misc]backup-simplify:  Simplify (+ 0 (/ 2 (* x2 x3))) into (* 2 (/ 1 (* x2 x3)))
* [misc]backup-simplify:  Simplify (+ 0 (* 2 (/ 1 (* x2 x3)))) into (* 2 (/ 1 (* x2 x3)))
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))) into (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (- (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))) into (- (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))
* [misc]backup-simplify:  Simplify (+ (* 2 (/ 1 (* x2 x3))) (- (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))) into (- (* 2 (/ 1 (* x2 x3))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))
* [misc]taylor:  Taking taylor expansion of (- (* 2 (/ 1 (* x2 x3))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 (* x2 x3))) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x3 2)) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1)))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x2) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x3) (/ 1 x4)) (/ 1 x2))) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x4)) (/ 1 x3))) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x2 x3)) (/ 0 (* x2 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (/ 1 (* x2 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x2 2)) (/ 0 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x3 2)) (/ 0 (pow x3 2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x3))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 2 (/ 1 x3)) into (/ 2 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 2 x3) 0) into (* 2 (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (* -1 (* 1 (* 1 (* (pow (/ 1 x4) -2) (/ 1 (/ 1 x1)))))) (+ (* 1 (* 1 (* (/ 1 (/ 1 x2)) (* (/ 1 (/ 1 x4)) (/ 1 (/ 1 x1)))))) (* 1 (* (/ 1 (/ 1 x3)) (* 1 (* (/ 1 (/ 1 x4)) (/ 1 (/ 1 x1)))))))) into (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2)))
* [misc]approximate:  Taking taylor expansion of (+ (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (* -1 (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) 1) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ -1 x2)) into (- (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2)) (/ -1 x3)) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (- (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x3))) (/ 1 x4)) into (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (* 0 (/ -1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1)) into (- (/ 1 (pow x4 2)) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ -1 x2) -1) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ (- (/ 1 (pow x4 2)) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) (/ 1 x2)) into (- (+ (/ 1 x2) (/ 1 (pow x4 2))) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ -1 x3) -1) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 (pow x4 2))) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) (/ 1 x3)) into (- (+ (/ 1 x2) (+ (/ 1 (pow x4 2)) (/ 1 x3))) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (+ (/ 1 (pow x4 2)) (/ 1 x3))) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (/ 1 (pow x4 2)) (/ 1 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x4 2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ -1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ -1 x2)) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x2)) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ -1 x3)) into (- (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2) (/ 1 x3)) (/ -1 x4)) into (- (/ 1 x2) (+ (/ 1 x3) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x2) (- (/ 1 x2) (+ (/ 1 x3) (/ 1 x4)))) (* 0 -1)) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2)))) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ -1 x2)) into (- (/ 1 x2))
* [misc]backup-simplify:  Simplify (- (/ -1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2)) (/ 1 x3)) into (- (/ 1 x3) (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x3) (/ 1 x2)) (/ -1 x4)) into (- (/ 1 x3) (+ (/ 1 x2) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) (- (/ 1 x3) (+ (/ 1 x2) (/ 1 x4)))) (* 0 -1)) into (- (+ (/ 1 (* x4 x3)) (/ 1 (* x2 x3))) (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 (* x2 x4)) (/ 1 (* x2 x3))) (/ 1 (pow x2 2))) (- (+ (/ 1 (* x4 x3)) (/ 1 (* x2 x3))) (/ 1 (pow x3 2)))) into (- (+ (/ 1 (* x2 x4)) (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3))))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x2 x4)) (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3))))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x4 x3)) (* 2 (/ 1 (* x2 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 (* x2 x3))) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x2 x3) into (* x2 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x3)) into (/ 1 (* x2 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x4
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x4
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x4
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x4
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x3 2)) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (/ 1 x2) (/ 1 x3))) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (/ 1 x2) (/ 1 x3)))) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x2) 0) (+ (* 0 (- (/ 1 x2) (+ (/ 1 x3) (/ 1 x4)))) (* 0 -1))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 (- (/ 1 x3) (+ (/ 1 x2) (/ 1 x4)))) (* 0 -1))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) 0) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x4)))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x2) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x2) (+ (/ 1 x3) (/ 1 x4)))) (* 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x3) (+ (/ 1 x2) (/ 1 x4)))) (* 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (* 2 (/ 1 (* x2 x3))) into (/ 2 (* x2 x3))
* [misc]backup-simplify:  Simplify (+ 0 (/ 2 (* x2 x3))) into (* 2 (/ 1 (* x2 x3)))
* [misc]backup-simplify:  Simplify (+ 0 (* 2 (/ 1 (* x2 x3)))) into (* 2 (/ 1 (* x2 x3)))
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))) into (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (- (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))) into (- (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))
* [misc]backup-simplify:  Simplify (+ (* 2 (/ 1 (* x2 x3))) (- (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))) into (- (* 2 (/ 1 (* x2 x3))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))))
* [misc]taylor:  Taking taylor expansion of (- (* 2 (/ 1 (* x2 x3))) (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2)))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 (* x2 x3))) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x2 2)) (/ 1 (pow x3 2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x3 2)) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (/ 1 x3)) into (- (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x4))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x2) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x2) (+ (/ 1 x3) (/ 1 x4)))) (* 0 -1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x3) (+ (/ 1 x2) (/ 1 x4)))) (* 0 -1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x2 x3)) (/ 0 (* x2 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (/ 1 (* x2 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x2 2)) (/ 0 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x3 2)) (/ 0 (pow x3 2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x3))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 2 (/ 1 x3)) into (/ 2 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 2 x3) 0) into (* 2 (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* 1 (* (pow (/ 1 (- x4)) -2) (/ 1 (/ 1 (- x1))))))) (+ (* -1 (* 1 (* (/ 1 (/ 1 (- x2))) (* (/ 1 (/ 1 (- x4))) (/ 1 (/ 1 (- x1))))))) (* -1 (* (/ 1 (/ 1 (- x3))) (* 1 (* (/ 1 (/ 1 (- x4))) (/ 1 (/ 1 (- x1))))))))) into (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2)))
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 1) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (26 enodes)
* * [misc]simplify:  iters left: 3 (52 enodes)
* * [misc]simplify:  iters left: 2 (96 enodes)
* * [misc]simplify:  iters left: 1 (149 enodes)
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1))
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1))
* * * * [misc]progress:  [ 2 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 1) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 3 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (exp (+ (log (* x1 x4)) (log (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (log (* x1 x4)) (log (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (30 enodes)
* * [misc]simplify:  iters left: 3 (44 enodes)
* * [misc]simplify:  iters left: 2 (54 enodes)
* * [misc]simplify:  iters left: 1 (67 enodes)
* [exit]simplify:  Simplified to (+ (log (+ (+ x2 x3) (- (- x1) x4))) (log (* x4 x1)))
* [exit]simplify:  Simplified to (+ (log (+ (+ x2 x3) (- (- x1) x4))) (log (* x4 x1)))
* * * * [misc]progress:  [ 4 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (exp (log (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (log (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (68 enodes)
* * [misc]simplify:  iters left: 2 (118 enodes)
* * [misc]simplify:  iters left: 1 (171 enodes)
* [exit]simplify:  Simplified to (log (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [exit]simplify:  Simplified to (log (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * * * [misc]progress:  [ 5 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (log (exp (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (exp (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (59 enodes)
* * [misc]simplify:  iters left: 2 (103 enodes)
* * [misc]simplify:  iters left: 1 (156 enodes)
* [exit]simplify:  Simplified to (pow (exp (* x4 x1)) (+ x2 (+ (- x3 x4) (- x1))))
* [exit]simplify:  Simplified to (pow (exp (* x4 x1)) (+ x2 (+ (- x3 x4) (- x1))))
* * * * [misc]progress:  [ 6 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (cbrt (* (* (* (* x1 x4) (* x1 x4)) (* x1 x4)) (* (* (- (+ (+ (- x1) x2) x3) x4) (- (+ (+ (- x1) x2) x3) x4)) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* (* x1 x4) (* x1 x4)) (* x1 x4)) (* (* (- (+ (+ (- x1) x2) x3) x4) (- (+ (+ (- x1) x2) x3) x4)) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (48 enodes)
* * [misc]simplify:  iters left: 3 (127 enodes)
* * [misc]simplify:  iters left: 2 (456 enodes)
* [exit]simplify:  Simplified to (* (* (+ (+ (- x1) x3) (- x2 x4)) (+ (+ (- x1) x3) (- x2 x4))) (* (pow (* x4 x1) 3) (+ (- x2 (- x4 x3)) (- x1))))
* [exit]simplify:  Simplified to (* (* (+ (+ (- x1) x3) (- x2 x4)) (+ (+ (- x1) x3) (- x2 x4))) (* (pow (* x4 x1) 3) (+ (- x2 (- x4 x3)) (- x1))))
* * * * [misc]progress:  [ 7 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (54 enodes)
* * [misc]simplify:  iters left: 2 (98 enodes)
* * [misc]simplify:  iters left: 1 (151 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1))) (cbrt (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1))))
* [exit]simplify:  Simplified to (* (cbrt (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1))) (cbrt (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1))))
* [enter]simplify:  Simplifying (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (53 enodes)
* * [misc]simplify:  iters left: 2 (97 enodes)
* * [misc]simplify:  iters left: 1 (150 enodes)
* [exit]simplify:  Simplified to (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [exit]simplify:  Simplified to (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * * * [misc]progress:  [ 8 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (cbrt (* (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (104 enodes)
* * [misc]simplify:  iters left: 2 (356 enodes)
* [exit]simplify:  Simplified to (pow (* (+ x3 (+ (- x1) (- x2 x4))) (* x4 x1)) 3)
* [exit]simplify:  Simplified to (pow (* (+ x3 (+ (- x1) (- x2 x4))) (* x4 x1)) 3)
* * * * [misc]progress:  [ 9 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (sqrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (sqrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (sqrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (53 enodes)
* * [misc]simplify:  iters left: 2 (97 enodes)
* * [misc]simplify:  iters left: 1 (150 enodes)
* [exit]simplify:  Simplified to (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [exit]simplify:  Simplified to (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [enter]simplify:  Simplifying (sqrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (53 enodes)
* * [misc]simplify:  iters left: 2 (97 enodes)
* * [misc]simplify:  iters left: 1 (150 enodes)
* [exit]simplify:  Simplified to (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [exit]simplify:  Simplified to (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * * * [misc]progress:  [ 10 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* 1 (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 11 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (* x1 x4) (+ (+ (- x1) x2) x3)) (* (* x1 x4) (- x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (+ (+ (- x1) x2) x3))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (61 enodes)
* * [misc]simplify:  iters left: 3 (124 enodes)
* * [misc]simplify:  iters left: 2 (168 enodes)
* * [misc]simplify:  iters left: 1 (190 enodes)
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- x1)) (* x4 x1))
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- x1)) (* x4 x1))
* [enter]simplify:  Simplifying (* (* x1 x4) (- x4))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* * [misc]simplify:  iters left: 1 (26 enodes)
* [exit]simplify:  Simplified to (* (- x1) (* x4 x4))
* [exit]simplify:  Simplified to (* (- x1) (* x4 x4))
* * * * [misc]progress:  [ 12 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (* x1 x4) (+ (- x1) x2)) (* (* x1 x4) (- x3 x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (+ (- x1) x2))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (46 enodes)
* * [misc]simplify:  iters left: 3 (62 enodes)
* * [misc]simplify:  iters left: 2 (68 enodes)
* * [misc]simplify:  iters left: 1 (70 enodes)
* [exit]simplify:  Simplified to (* (* x4 x1) (+ (- x1) x2))
* [exit]simplify:  Simplified to (* (* x4 x1) (+ (- x1) x2))
* [enter]simplify:  Simplifying (* (* x1 x4) (- x3 x4))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (* (* x4 x1) (- x3 x4))
* [exit]simplify:  Simplified to (* (* x4 x1) (- x3 x4))
* * * * [misc]progress:  [ 13 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (+ (+ (- x1) x2) x3) (* x1 x4)) (* (- x4) (* x1 x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (+ (+ (- x1) x2) x3) (* x1 x4))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (21 enodes)
* * [misc]simplify:  iters left: 3 (45 enodes)
* * [misc]simplify:  iters left: 2 (91 enodes)
* * [misc]simplify:  iters left: 1 (110 enodes)
* [exit]simplify:  Simplified to (* (+ (- x1) (+ x3 x2)) (* x1 x4))
* [exit]simplify:  Simplified to (* (+ (- x1) (+ x3 x2)) (* x1 x4))
* [enter]simplify:  Simplifying (* (- x4) (* x1 x4))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (22 enodes)
* [exit]simplify:  Simplified to (* (* x4 x4) (- x1))
* [exit]simplify:  Simplified to (* (* x4 x4) (- x1))
* * * * [misc]progress:  [ 14 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (+ (- x1) x2) (* x1 x4)) (* (- x3 x4) (* x1 x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (+ (- x1) x2) (* x1 x4))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (30 enodes)
* * [misc]simplify:  iters left: 2 (54 enodes)
* * [misc]simplify:  iters left: 1 (60 enodes)
* [exit]simplify:  Simplified to (* (+ (- x1) x2) (* x1 x4))
* [exit]simplify:  Simplified to (* (+ (- x1) x2) (* x1 x4))
* [enter]simplify:  Simplifying (* (- x3 x4) (* x1 x4))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (* (- x3 x4) (* x1 x4))
* [exit]simplify:  Simplified to (* (- x3 x4) (* x1 x4))
* * * * [misc]progress:  [ 15 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (* x1 x4) (* (cbrt (- (+ (+ (- x1) x2) x3) x4)) (cbrt (- (+ (+ (- x1) x2) x3) x4)))) (cbrt (- (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (* (cbrt (- (+ (+ (- x1) x2) x3) x4)) (cbrt (- (+ (+ (- x1) x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (54 enodes)
* * [misc]simplify:  iters left: 2 (71 enodes)
* * [misc]simplify:  iters left: 1 (84 enodes)
* [exit]simplify:  Simplified to (* (* (cbrt (+ x2 (+ (- x3 x4) (- x1)))) (* x4 x1)) (cbrt (+ x2 (+ (- x3 x4) (- x1)))))
* [exit]simplify:  Simplified to (* (* (cbrt (+ x2 (+ (- x3 x4) (- x1)))) (* x4 x1)) (cbrt (+ x2 (+ (- x3 x4) (- x1)))))
* * * * [misc]progress:  [ 16 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (* x1 x4) (sqrt (- (+ (+ (- x1) x2) x3) x4))) (sqrt (- (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (sqrt (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (41 enodes)
* * [misc]simplify:  iters left: 2 (50 enodes)
* * [misc]simplify:  iters left: 1 (63 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (+ (- x1) x2) (- x3 x4))) (* x4 x1))
* [exit]simplify:  Simplified to (* (sqrt (+ (+ (- x1) x2) (- x3 x4))) (* x4 x1))
* * * * [misc]progress:  [ 17 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (* x1 x4) 1) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) 1)
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* [exit]simplify:  Simplified to (* x1 x4)
* [exit]simplify:  Simplified to (* x1 x4)
* * * * [misc]progress:  [ 18 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* x1 (* x4 (- (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x4 (- (+ (+ (- x1) x2) x3) x4))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* * [misc]simplify:  iters left: 4 (20 enodes)
* * [misc]simplify:  iters left: 3 (42 enodes)
* * [misc]simplify:  iters left: 2 (69 enodes)
* * [misc]simplify:  iters left: 1 (95 enodes)
* [exit]simplify:  Simplified to (* (+ x3 (+ (- x1) (- x2 x4))) x4)
* [exit]simplify:  Simplified to (* (+ x3 (+ (- x1) (- x2 x4))) x4)
* * * * [misc]progress:  [ 19 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (/ (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3)))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (115 enodes)
* * [misc]simplify:  iters left: 2 (263 enodes)
* * [misc]simplify:  iters left: 1 (467 enodes)
* [exit]simplify:  Simplified to (* (- (pow (+ (- x1) (+ x2 x3)) 3) (pow x4 3)) (* x4 x1))
* [exit]simplify:  Simplified to (* (- (pow (+ (- x1) (+ x2 x3)) 3) (pow x4 3)) (* x4 x1))
* * * * [misc]progress:  [ 20 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (/ (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (+ (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (73 enodes)
* * [misc]simplify:  iters left: 3 (225 enodes)
* [exit]simplify:  Simplified to (* (* x4 x1) (- (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3))) (* x4 x4)))
* [exit]simplify:  Simplified to (* (* x4 x1) (- (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3))) (* x4 x4)))
* * * * [misc]progress:  [ 21 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (- (+ (+ (- x1) x2) x3) x4) (* x1 x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 22 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (pow (* x2 (* x3 x4)) 1)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 23 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (exp (log (* x2 (* x3 x4))))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (log (* x2 (* x3 x4)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (12 enodes)
* * [misc]simplify:  iters left: 3 (20 enodes)
* * [misc]simplify:  iters left: 2 (31 enodes)
* * [misc]simplify:  iters left: 1 (39 enodes)
* [exit]simplify:  Simplified to (log (* (* x3 x2) x4))
* [exit]simplify:  Simplified to (log (* (* x3 x2) x4))
* * * * [misc]progress:  [ 24 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (log (exp (* x2 (* x3 x4))))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (exp (* x2 (* x3 x4)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* * [misc]simplify:  iters left: 2 (18 enodes)
* * [misc]simplify:  iters left: 1 (20 enodes)
* [exit]simplify:  Simplified to (pow (exp x2) (* x4 x3))
* [exit]simplify:  Simplified to (pow (exp x2) (* x4 x3))
* * * * [misc]progress:  [ 25 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* (cbrt (* x2 (* x3 x4))) (cbrt (* x2 (* x3 x4)))) (cbrt (* x2 (* x3 x4))))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (cbrt (* x2 (* x3 x4))) (cbrt (* x2 (* x3 x4))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (17 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* (* x2 x4) x3)) (cbrt (* (* x2 x4) x3)))
* [exit]simplify:  Simplified to (* (cbrt (* (* x2 x4) x3)) (cbrt (* (* x2 x4) x3)))
* [enter]simplify:  Simplifying (cbrt (* x2 (* x3 x4)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (cbrt (* x4 (* x3 x2)))
* [exit]simplify:  Simplified to (cbrt (* x4 (* x3 x2)))
* * * * [misc]progress:  [ 26 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (cbrt (* (* (* x2 (* x3 x4)) (* x2 (* x3 x4))) (* x2 (* x3 x4))))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* x2 (* x3 x4)) (* x2 (* x3 x4))) (* x2 (* x3 x4)))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (20 enodes)
* * [misc]simplify:  iters left: 3 (38 enodes)
* * [misc]simplify:  iters left: 2 (77 enodes)
* * [misc]simplify:  iters left: 1 (123 enodes)
* [exit]simplify:  Simplified to (pow (* (* x2 x4) x3) 3)
* [exit]simplify:  Simplified to (pow (* (* x2 x4) x3) 3)
* * * * [misc]progress:  [ 27 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (sqrt (* x2 (* x3 x4))) (sqrt (* x2 (* x3 x4))))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (sqrt (* x2 (* x3 x4)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (* x4 (* x3 x2)))
* [exit]simplify:  Simplified to (sqrt (* x4 (* x3 x2)))
* [enter]simplify:  Simplifying (sqrt (* x2 (* x3 x4)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (* x4 (* x3 x2)))
* [exit]simplify:  Simplified to (sqrt (* x4 (* x3 x2)))
* * * * [misc]progress:  [ 28 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* 1 (* x2 (* x3 x4)))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 29 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x2 x3)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (* x3 x2)
* [exit]simplify:  Simplified to (* x3 x2)
* * * * [misc]progress:  [ 30 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x3 x4) x2)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 31 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (pow (* x3 (+ (- (+ x1 x2) x3) x4)) 1)) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 32 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (exp (log (* x3 (+ (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (log (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (63 enodes)
* * [misc]simplify:  iters left: 2 (87 enodes)
* * [misc]simplify:  iters left: 1 (109 enodes)
* [exit]simplify:  Simplified to (log (* x3 (- (+ x2 x4) (- x3 x1))))
* [exit]simplify:  Simplified to (log (* x3 (- (+ x2 x4) (- x3 x1))))
* * * * [misc]progress:  [ 33 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (log (exp (* x3 (+ (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (exp (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (24 enodes)
* * [misc]simplify:  iters left: 4 (45 enodes)
* * [misc]simplify:  iters left: 3 (82 enodes)
* * [misc]simplify:  iters left: 2 (143 enodes)
* * [misc]simplify:  iters left: 1 (215 enodes)
* [exit]simplify:  Simplified to (pow (exp x3) (+ (- x2 x3) (+ x1 x4)))
* [exit]simplify:  Simplified to (pow (exp x3) (+ (- x2 x3) (+ x1 x4)))
* * * * [misc]progress:  [ 34 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (cbrt (* x3 (+ (- (+ x1 x2) x3) x4))) (cbrt (* x3 (+ (- (+ x1 x2) x3) x4)))) (cbrt (* x3 (+ (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (cbrt (* x3 (+ (- (+ x1 x2) x3) x4))) (cbrt (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (38 enodes)
* * [misc]simplify:  iters left: 3 (60 enodes)
* * [misc]simplify:  iters left: 2 (83 enodes)
* * [misc]simplify:  iters left: 1 (100 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* x3 (+ (+ x1 x4) (- x2 x3)))) (cbrt (* x3 (+ (+ x1 x4) (- x2 x3)))))
* [exit]simplify:  Simplified to (* (cbrt (* x3 (+ (+ x1 x4) (- x2 x3)))) (cbrt (* x3 (+ (+ x1 x4) (- x2 x3)))))
* [enter]simplify:  Simplifying (cbrt (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (37 enodes)
* * [misc]simplify:  iters left: 3 (59 enodes)
* * [misc]simplify:  iters left: 2 (82 enodes)
* * [misc]simplify:  iters left: 1 (99 enodes)
* [exit]simplify:  Simplified to (cbrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* [exit]simplify:  Simplified to (cbrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* * * * [misc]progress:  [ 35 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (cbrt (* (* (* x3 (+ (- (+ x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* x3 (+ (- (+ x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (52 enodes)
* * [misc]simplify:  iters left: 3 (97 enodes)
* * [misc]simplify:  iters left: 2 (307 enodes)
* [exit]simplify:  Simplified to (pow (* x3 (+ (+ x1 x4) (- x2 x3))) 3)
* [exit]simplify:  Simplified to (pow (* x3 (+ (+ x1 x4) (- x2 x3))) 3)
* * * * [misc]progress:  [ 36 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (sqrt (* x3 (+ (- (+ x1 x2) x3) x4))) (sqrt (* x3 (+ (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (sqrt (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (37 enodes)
* * [misc]simplify:  iters left: 3 (59 enodes)
* * [misc]simplify:  iters left: 2 (82 enodes)
* * [misc]simplify:  iters left: 1 (99 enodes)
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* [enter]simplify:  Simplifying (sqrt (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (37 enodes)
* * [misc]simplify:  iters left: 3 (59 enodes)
* * [misc]simplify:  iters left: 2 (82 enodes)
* * [misc]simplify:  iters left: 1 (99 enodes)
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* * * * [misc]progress:  [ 37 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* 1 (* x3 (+ (- (+ x1 x2) x3) x4)))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 38 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* x3 (- (+ x1 x2) x3)) (* x3 x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (- (+ x1 x2) x3))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* * [misc]simplify:  iters left: 2 (26 enodes)
* * [misc]simplify:  iters left: 1 (32 enodes)
* [exit]simplify:  Simplified to (* x3 (- x1 (- x3 x2)))
* [exit]simplify:  Simplified to (* x3 (- x1 (- x3 x2)))
* [enter]simplify:  Simplifying (* x3 x4)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (* x4 x3)
* [exit]simplify:  Simplified to (* x4 x3)
* * * * [misc]progress:  [ 39 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (- (+ x1 x2) x3) x3) (* x4 x3))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (- (+ x1 x2) x3) x3)
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* * [misc]simplify:  iters left: 2 (26 enodes)
* * [misc]simplify:  iters left: 1 (32 enodes)
* [exit]simplify:  Simplified to (* x3 (+ (- x2 x3) x1))
* [exit]simplify:  Simplified to (* x3 (+ (- x2 x3) x1))
* [enter]simplify:  Simplifying (* x4 x3)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (* x3 x4)
* [exit]simplify:  Simplified to (* x3 x4)
* * * * [misc]progress:  [ 40 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (* (cbrt (+ (- (+ x1 x2) x3) x4)) (cbrt (+ (- (+ x1 x2) x3) x4)))) (cbrt (+ (- (+ x1 x2) x3) x4)))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (* (cbrt (+ (- (+ x1 x2) x3) x4)) (cbrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (41 enodes)
* * [misc]simplify:  iters left: 2 (47 enodes)
* * [misc]simplify:  iters left: 1 (54 enodes)
* [exit]simplify:  Simplified to (* x3 (* (cbrt (+ (- x2 x3) (+ x1 x4))) (cbrt (+ (- x2 x3) (+ x1 x4)))))
* [exit]simplify:  Simplified to (* x3 (* (cbrt (+ (- x2 x3) (+ x1 x4))) (cbrt (+ (- x2 x3) (+ x1 x4)))))
* * * * [misc]progress:  [ 41 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (23 enodes)
* * [misc]simplify:  iters left: 3 (36 enodes)
* * [misc]simplify:  iters left: 2 (42 enodes)
* * [misc]simplify:  iters left: 1 (49 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (+ x2 x4) (- x1 x3))) x3)
* [exit]simplify:  Simplified to (* (sqrt (+ (+ x2 x4) (- x1 x3))) x3)
* * * * [misc]progress:  [ 42 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 1) (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 1)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to x3
* [exit]simplify:  Simplified to x3
* * * * [misc]progress:  [ 43 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (/ (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (28 enodes)
* * [misc]simplify:  iters left: 4 (56 enodes)
* * [misc]simplify:  iters left: 3 (100 enodes)
* * [misc]simplify:  iters left: 2 (201 enodes)
* * [misc]simplify:  iters left: 1 (368 enodes)
* [exit]simplify:  Simplified to (+ (* (* x4 x4) (* x4 x3)) (* (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x3 (+ (- x2 x3) x1))))
* [exit]simplify:  Simplified to (+ (* (* x4 x4) (* x4 x3)) (* (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x3 (+ (- x2 x3) x1))))
* * * * [misc]progress:  [ 44 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (/ (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))) (- (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (99 enodes)
* * [misc]simplify:  iters left: 2 (277 enodes)
* [exit]simplify:  Simplified to (* x3 (* (- (+ x1 x2) (+ x4 x3)) (+ (+ x4 x1) (- x2 x3))))
* [exit]simplify:  Simplified to (* x3 (* (- (+ x1 x2) (+ x4 x3)) (+ (+ x4 x1) (- x2 x3))))
* * * * [misc]progress:  [ 45 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (+ (- (+ x1 x2) x3) x4) x3)) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 46 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (log (* (* (exp (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (exp (* x2 (+ (+ (- x1 x2) x3) x4)))) (exp (* x3 (+ (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (exp (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (exp (* x2 (+ (+ (- x1 x2) x3) x4)))) (exp (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (128 enodes)
* * [misc]simplify:  iters left: 3 (231 enodes)
* * [misc]simplify:  iters left: 2 (423 enodes)
* [exit]simplify:  Simplified to (* (pow (exp (* x4 x1)) (+ (+ (- x1) x2) (- x3 x4))) (* (pow (exp x2) (- (+ x4 x1) (- x2 x3))) (pow (exp x3) (+ (+ x4 x2) (- x1 x3)))))
* [exit]simplify:  Simplified to (* (pow (exp (* x4 x1)) (+ (+ (- x1) x2) (- x3 x4))) (* (pow (exp x2) (- (+ x4 x1) (- x2 x3))) (pow (exp x3) (+ (+ x4 x2) (- x1 x3)))))
* * * * [misc]progress:  [ 47 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (log (* (exp (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (exp (* x3 (+ (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (exp (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (exp (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (61 enodes)
* * [misc]simplify:  iters left: 4 (129 enodes)
* * [misc]simplify:  iters left: 3 (242 enodes)
* * [misc]simplify:  iters left: 2 (425 enodes)
* [exit]simplify:  Simplified to (* (* (pow (exp x3) (+ (- x1 x3) (+ x4 x2))) (pow (exp x2) (- (+ x4 x1) (- x2 x3)))) (pow (exp (* x4 x1)) (+ (+ (- x1) x2) (- x3 x4))))
* [exit]simplify:  Simplified to (* (* (pow (exp x3) (+ (- x1 x3) (+ x4 x2))) (pow (exp x2) (- (+ x4 x1) (- x2 x3)))) (pow (exp (* x4 x1)) (+ (+ (- x1) x2) (- x3 x4))))
* * * * [misc]progress:  [ 48 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (pow (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) 1) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 49 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (exp (log (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (log (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (54 enodes)
* * [misc]simplify:  iters left: 4 (98 enodes)
* * [misc]simplify:  iters left: 3 (166 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (316 enodes)
* [exit]simplify:  Simplified to (log (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* [exit]simplify:  Simplified to (log (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* * * * [misc]progress:  [ 50 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (log (exp (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (exp (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (57 enodes)
* * [misc]simplify:  iters left: 4 (116 enodes)
* * [misc]simplify:  iters left: 3 (239 enodes)
* * [misc]simplify:  iters left: 2 (447 enodes)
* [exit]simplify:  Simplified to (* (pow (exp (* x4 x1)) (+ (+ x2 x3) (- (- x1) x4))) (* (pow (exp x3) (+ (- x2 x3) (+ x4 x1))) (pow (exp x2) (+ (+ x3 x4) (- x1 x2)))))
* [exit]simplify:  Simplified to (* (pow (exp (* x4 x1)) (+ (+ x2 x3) (- (- x1) x4))) (* (pow (exp x3) (+ (- x2 x3) (+ x4 x1))) (pow (exp x2) (+ (+ x3 x4) (- x1 x2)))))
* * * * [misc]progress:  [ 51 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (* (* (cbrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (cbrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (cbrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (cbrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (cbrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (55 enodes)
* * [misc]simplify:  iters left: 4 (99 enodes)
* * [misc]simplify:  iters left: 3 (167 enodes)
* * [misc]simplify:  iters left: 2 (242 enodes)
* * [misc]simplify:  iters left: 1 (317 enodes)
* [exit]simplify:  Simplified to (* (cbrt (+ (* (+ (+ x3 (- x2 x4)) (- x1)) (* x4 x1)) (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)))) (cbrt (+ (* (+ (+ x3 (- x2 x4)) (- x1)) (* x4 x1)) (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)))))
* [exit]simplify:  Simplified to (* (cbrt (+ (* (+ (+ x3 (- x2 x4)) (- x1)) (* x4 x1)) (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)))) (cbrt (+ (* (+ (+ x3 (- x2 x4)) (- x1)) (* x4 x1)) (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)))))
* [enter]simplify:  Simplifying (cbrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (54 enodes)
* * [misc]simplify:  iters left: 4 (98 enodes)
* * [misc]simplify:  iters left: 3 (166 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (316 enodes)
* [exit]simplify:  Simplified to (cbrt (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* [exit]simplify:  Simplified to (cbrt (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* * * * [misc]progress:  [ 52 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (cbrt (* (* (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (68 enodes)
* * [misc]simplify:  iters left: 4 (186 enodes)
* [exit]simplify:  Simplified to (pow (+ (+ (* x2 (+ (- x1 x2) (+ x3 x4))) (* (- (+ x2 x1) (- x3 x4)) x3)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) 3)
* [exit]simplify:  Simplified to (pow (+ (+ (* x2 (+ (- x1 x2) (+ x3 x4))) (* (- (+ x2 x1) (- x3 x4)) x3)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) 3)
* * * * [misc]progress:  [ 53 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (* (sqrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (sqrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (sqrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (54 enodes)
* * [misc]simplify:  iters left: 4 (98 enodes)
* * [misc]simplify:  iters left: 3 (166 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (316 enodes)
* [exit]simplify:  Simplified to (sqrt (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* [exit]simplify:  Simplified to (sqrt (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* [enter]simplify:  Simplifying (sqrt (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (54 enodes)
* * [misc]simplify:  iters left: 4 (98 enodes)
* * [misc]simplify:  iters left: 3 (166 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (316 enodes)
* [exit]simplify:  Simplified to (sqrt (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* [exit]simplify:  Simplified to (sqrt (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))))
* * * * [misc]progress:  [ 54 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))))
* * [misc]simplify:  iters left: 6 (43 enodes)
* * [misc]simplify:  iters left: 5 (135 enodes)
* * [misc]simplify:  iters left: 4 (386 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (- (- x4 x1) (- x2 x3)) x4) (* (- x2 (- x3 x1)) (- x2 (- x3 x1)))) (+ (* (+ (* (* x4 x2) (* x4 x4)) (* (* (+ x3 (- x1 x2)) (+ x3 (- x1 x2))) (* (+ x3 (- x1 x2)) x2))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))) (* (* x1 (- (* x4 x4) (* (+ x3 (- x1 x2)) (+ (- x4 x1) (- x2 x3))))) (* (- (pow (+ (+ x2 x3) (- x1)) 3) (pow x4 3)) x4)))) (* (+ (* (* x3 x4) (* x4 x4)) (* (* x3 (- x2 (- x3 x1))) (* (- x2 (- x3 x1)) (- x2 (- x3 x1))))) (* (- (* x4 x4) (* (+ x3 (- x1 x2)) (+ (- x4 x1) (- x2 x3)))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1)))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (- (- x4 x1) (- x2 x3)) x4) (* (- x2 (- x3 x1)) (- x2 (- x3 x1)))) (+ (* (+ (* (* x4 x2) (* x4 x4)) (* (* (+ x3 (- x1 x2)) (+ x3 (- x1 x2))) (* (+ x3 (- x1 x2)) x2))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))) (* (* x1 (- (* x4 x4) (* (+ x3 (- x1 x2)) (+ (- x4 x1) (- x2 x3))))) (* (- (pow (+ (+ x2 x3) (- x1)) 3) (pow x4 3)) x4)))) (* (+ (* (* x3 x4) (* x4 x4)) (* (* x3 (- x2 (- x3 x1))) (* (- x2 (- x3 x1)) (- x2 (- x3 x1))))) (* (- (* x4 x4) (* (+ x3 (- x1 x2)) (+ (- x4 x1) (- x2 x3)))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1)))))))
* [enter]simplify:  Simplifying (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (26 enodes)
* * [misc]simplify:  iters left: 5 (79 enodes)
* * [misc]simplify:  iters left: 4 (261 enodes)
* [exit]simplify:  Simplified to (* (* (- (* x4 x4) (* (- x1 (- x2 x3)) (- (- x4 x3) (- x1 x2)))) (- (* x4 x4) (* (- (+ x1 x2) x3) (- (- x4 x1) (- x2 x3))))) (+ (* (+ (- x1) (+ x3 x2)) (+ (- x1) (+ x3 x2))) (* x4 (+ (+ (- x1) (+ x3 x2)) x4))))
* [exit]simplify:  Simplified to (* (* (- (* x4 x4) (* (- x1 (- x2 x3)) (- (- x4 x3) (- x1 x2)))) (- (* x4 x4) (* (- (+ x1 x2) x3) (- (- x4 x1) (- x2 x3))))) (+ (* (+ (- x1) (+ x3 x2)) (+ (- x1) (+ x3 x2))) (* x4 (+ (+ (- x1) (+ x3 x2)) x4))))
* * * * [misc]progress:  [ 55 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (- (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))))
* * [misc]simplify:  iters left: 6 (40 enodes)
* * [misc]simplify:  iters left: 5 (115 enodes)
* * [misc]simplify:  iters left: 4 (326 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* (* (- x1 (- x2 x3)) (- x1 (- x2 x3))) (* (- x1 (- x2 x3)) x2)) (* (* x4 x2) (* x4 x4))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))) (* (* (- (* x4 x4) (* (- x1 (- x2 x3)) (+ (- x4 x1) (- x2 x3)))) (* x4 x1)) (- (pow (+ (+ x2 x3) (- x1)) 3) (pow x4 3)))) (- (+ x2 x1) (+ x3 x4))) (* (* (* (- (+ x2 x1) (+ x3 x4)) (* (+ (- x2 x3) (+ x1 x4)) x3)) (- (* x4 x4) (* (- x1 (- x2 x3)) (+ (- x4 x1) (- x2 x3))))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* (* (- x1 (- x2 x3)) (- x1 (- x2 x3))) (* (- x1 (- x2 x3)) x2)) (* (* x4 x2) (* x4 x4))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))) (* (* (- (* x4 x4) (* (- x1 (- x2 x3)) (+ (- x4 x1) (- x2 x3)))) (* x4 x1)) (- (pow (+ (+ x2 x3) (- x1)) 3) (pow x4 3)))) (- (+ x2 x1) (+ x3 x4))) (* (* (* (- (+ x2 x1) (+ x3 x4)) (* (+ (- x2 x3) (+ x1 x4)) x3)) (- (* x4 x4) (* (- x1 (- x2 x3)) (+ (- x4 x1) (- x2 x3))))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))))
* [enter]simplify:  Simplifying (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (- (- (+ x1 x2) x3) x4))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (66 enodes)
* * [misc]simplify:  iters left: 4 (211 enodes)
* [exit]simplify:  Simplified to (* (+ (* (+ (+ x3 x2) (- x1)) x4) (+ (* x4 x4) (* (+ (+ x3 x2) (- x1)) (+ (+ x3 x2) (- x1))))) (* (- (+ x1 x2) (+ x4 x3)) (+ (* (- x1 (- x2 x3)) (- x1 (- x2 x3))) (* x4 (+ (- x4 x1) (- x2 x3))))))
* [exit]simplify:  Simplified to (* (+ (* (+ (+ x3 x2) (- x1)) x4) (+ (* x4 x4) (* (+ (+ x3 x2) (- x1)) (+ (+ x3 x2) (- x1))))) (* (- (+ x1 x2) (+ x4 x3)) (+ (* (- x1 (- x2 x3)) (- x1 (- x2 x3))) (* x4 (+ (- x4 x1) (- x2 x3))))))
* * * * [misc]progress:  [ 56 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (- (+ (- x1 x2) x3) x4)) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (- (+ (- x1 x2) x3) x4)) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))))
* * [misc]simplify:  iters left: 6 (40 enodes)
* * [misc]simplify:  iters left: 5 (109 enodes)
* * [misc]simplify:  iters left: 4 (310 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (+ (* (* (- (+ x3 x1) (+ x2 x4)) x4) (+ x4 (+ (+ x2 x3) (- x1)))) (* (- (+ x3 x1) (+ x2 x4)) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))) (+ (* (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x3 (+ (- x2 x3) x1))) (* (* x4 x4) (* x3 x4)))) (* (* (* (- (+ x3 x1) (+ x2 x4)) (* x4 x1)) (- (pow (+ (+ x2 x3) (- x1)) 3) (pow x4 3))) (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)))) (* (* (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)) (* (- (+ x3 x1) (+ x2 x4)) (* (- (+ x3 x1) (- x2 x4)) x2))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))))
* [exit]simplify:  Simplified to (+ (+ (* (+ (* (* (- (+ x3 x1) (+ x2 x4)) x4) (+ x4 (+ (+ x2 x3) (- x1)))) (* (- (+ x3 x1) (+ x2 x4)) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))) (+ (* (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x3 (+ (- x2 x3) x1))) (* (* x4 x4) (* x3 x4)))) (* (* (* (- (+ x3 x1) (+ x2 x4)) (* x4 x1)) (- (pow (+ (+ x2 x3) (- x1)) 3) (pow x4 3))) (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)))) (* (* (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)) (* (- (+ x3 x1) (+ x2 x4)) (* (- (+ x3 x1) (- x2 x4)) x2))) (+ (* x4 (+ x4 (+ (+ x2 x3) (- x1)))) (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))))))
* [enter]simplify:  Simplifying (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (60 enodes)
* * [misc]simplify:  iters left: 4 (178 enodes)
* [exit]simplify:  Simplified to (* (+ (* (+ (+ x3 x2) (- x1)) (+ (+ x3 x2) (- x1))) (* x4 (+ (+ (+ x3 x2) (- x1)) x4))) (* (- (+ x3 x1) (+ x2 x4)) (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x4 (- (- x4 x1) (- x2 x3))))))
* [exit]simplify:  Simplified to (* (+ (* (+ (+ x3 x2) (- x1)) (+ (+ x3 x2) (- x1))) (* x4 (+ (+ (+ x3 x2) (- x1)) x4))) (* (- (+ x3 x1) (+ x2 x4)) (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x4 (- (- x4 x1) (- x2 x3))))))
* * * * [misc]progress:  [ 57 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (- (+ (- x1 x2) x3) x4)) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (- (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (- (+ (- x1 x2) x3) x4)) (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))))
* * [misc]simplify:  iters left: 6 (37 enodes)
* * [misc]simplify:  iters left: 5 (89 enodes)
* * [misc]simplify:  iters left: 4 (240 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- (+ x2 x1) (- x3 x4)) (* (- (+ x2 x1) (+ x3 x4)) x3)) (+ (- x1 x2) (- x3 x4))) (+ (+ (* x4 x4) (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3)))) (* (+ (- x1) (+ x2 x3)) x4))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (* (+ (- x1 x2) (- x3 x4)) (* x2 (- (+ x3 x1) (- x2 x4))))) (+ (+ (* x4 x4) (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3)))) (* (+ (- x1) (+ x2 x3)) x4))) (* (* (- (pow (+ (- x1) (+ x2 x3)) 3) (pow x4 3)) (* x4 x1)) (* (+ (- x1 x2) (- x3 x4)) (- (+ x2 x1) (+ x3 x4))))))
* [exit]simplify:  Simplified to (+ (* (* (* (- (+ x2 x1) (- x3 x4)) (* (- (+ x2 x1) (+ x3 x4)) x3)) (+ (- x1 x2) (- x3 x4))) (+ (+ (* x4 x4) (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3)))) (* (+ (- x1) (+ x2 x3)) x4))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (* (+ (- x1 x2) (- x3 x4)) (* x2 (- (+ x3 x1) (- x2 x4))))) (+ (+ (* x4 x4) (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3)))) (* (+ (- x1) (+ x2 x3)) x4))) (* (* (- (pow (+ (- x1) (+ x2 x3)) 3) (pow x4 3)) (* x4 x1)) (* (+ (- x1 x2) (- x3 x4)) (- (+ x2 x1) (+ x3 x4))))))
* [enter]simplify:  Simplifying (* (* (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4))) (- (+ (- x1 x2) x3) x4)) (- (- (+ x1 x2) x3) x4))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (47 enodes)
* * [misc]simplify:  iters left: 4 (135 enodes)
* * [misc]simplify:  iters left: 3 (385 enodes)
* [exit]simplify:  Simplified to (* (+ (+ (* x4 x4) (* (+ (- x1) (+ x3 x2)) (+ (- x1) (+ x3 x2)))) (* (+ (- x1) (+ x3 x2)) x4)) (* (+ (- x1 x2) (- x3 x4)) (- (+ x1 x2) (+ x4 x3))))
* [exit]simplify:  Simplified to (* (+ (+ (* x4 x4) (* (+ (- x1) (+ x3 x2)) (+ (- x1) (+ x3 x2)))) (* (+ (- x1) (+ x3 x2)) x4)) (* (+ (- x1 x2) (- x3 x4)) (- (+ x1 x2) (+ x4 x3))))
* * * * [misc]progress:  [ 58 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))))
* * [misc]simplify:  iters left: 6 (40 enodes)
* * [misc]simplify:  iters left: 5 (129 enodes)
* * [misc]simplify:  iters left: 4 (390 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (* (- (+ x3 x1) x2) (- (+ x3 x1) x2)) (* x4 (- (- x4 x3) (- x1 x2)))) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* x4 x4) (* x3 x4)) (* (* x3 (+ (- x2 x3) x1)) (* (+ (- x2 x3) x1) (+ (- x2 x3) x1))))) (* (* (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)) (* x4 x1)) (* (+ (* (- (+ x3 x1) x2) (- (+ x3 x1) x2)) (* x4 (- (- x4 x3) (- x1 x2)))) (- (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))) (* x4 x4))))) (* (* (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* x4 x4) (* x4 x2)) (* (* x2 (- (+ x3 x1) x2)) (* (- (+ x3 x1) x2) (- (+ x3 x1) x2))))))
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (* (- (+ x3 x1) x2) (- (+ x3 x1) x2)) (* x4 (- (- x4 x3) (- x1 x2)))) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* x4 x4) (* x3 x4)) (* (* x3 (+ (- x2 x3) x1)) (* (+ (- x2 x3) x1) (+ (- x2 x3) x1))))) (* (* (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)) (* x4 x1)) (* (+ (* (- (+ x3 x1) x2) (- (+ x3 x1) x2)) (* x4 (- (- x4 x3) (- x1 x2)))) (- (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))) (* x4 x4))))) (* (* (+ (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* (- (- x4 x1) (- x2 x3)) x4)) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* x4 x4) (* x4 x2)) (* (* x2 (- (+ x3 x1) x2)) (* (- (+ x3 x1) x2) (- (+ x3 x1) x2))))))
* [enter]simplify:  Simplifying (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (65 enodes)
* * [misc]simplify:  iters left: 4 (191 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* (+ x2 (- x1 x3)) (+ x2 (- x1 x3))) (* (- (- x4 x1) (- x2 x3)) x4)) (+ x3 (+ (+ x4 x2) (- x1)))) (+ (* (+ x3 (- x1 x2)) (+ x3 (- x1 x2))) (* (+ (- x4 x1) (- x2 x3)) x4)))
* [exit]simplify:  Simplified to (* (* (+ (* (+ x2 (- x1 x3)) (+ x2 (- x1 x3))) (* (- (- x4 x1) (- x2 x3)) x4)) (+ x3 (+ (+ x4 x2) (- x1)))) (+ (* (+ x3 (- x1 x2)) (+ x3 (- x1 x2))) (* (+ (- x4 x1) (- x2 x3)) x4)))
* * * * [misc]progress:  [ 59 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (- (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (+ (pow (+ (- x1 x2) x3) 3) (pow x4 3))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))))
* * [misc]simplify:  iters left: 6 (37 enodes)
* * [misc]simplify:  iters left: 5 (108 enodes)
* * [misc]simplify:  iters left: 4 (315 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (+ (- x2 x3) (+ x1 x4)) (* (- (+ x2 x1) (+ x3 x4)) x3)) (- (* x4 x4) (* (- x1 (- x2 x3)) (- (- x4 x3) (- x1 x2))))) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (- (* x4 x4) (* (- x1 (- x2 x3)) (- (- x4 x3) (- x1 x2))))) (* (* x4 x1) (- (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))) (* x4 x4)))) (* (* (- (+ x2 x1) (+ x3 x4)) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* x4 x4) (* x4 x2)) (* (* x2 (- x1 (- x2 x3))) (* (- x1 (- x2 x3)) (- x1 (- x2 x3))))))))
* [exit]simplify:  Simplified to (+ (* (* (* (+ (- x2 x3) (+ x1 x4)) (* (- (+ x2 x1) (+ x3 x4)) x3)) (- (* x4 x4) (* (- x1 (- x2 x3)) (- (- x4 x3) (- x1 x2))))) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (- (* x4 x4) (* (- x1 (- x2 x3)) (- (- x4 x3) (- x1 x2))))) (* (* x4 x1) (- (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))) (* x4 x4)))) (* (* (- (+ x2 x1) (+ x3 x4)) (+ x4 (+ (+ x2 x3) (- x1)))) (+ (* (* x4 x4) (* x4 x2)) (* (* x2 (- x1 (- x2 x3))) (* (- x1 (- x2 x3)) (- x1 (- x2 x3))))))))
* [enter]simplify:  Simplifying (* (* (+ (+ (+ (- x1) x2) x3) x4) (+ (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (- (* x4 x4) (* (+ (- x1 x2) x3) x4)))) (- (- (+ x1 x2) x3) x4))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (52 enodes)
* * [misc]simplify:  iters left: 4 (135 enodes)
* * [misc]simplify:  iters left: 3 (388 enodes)
* [exit]simplify:  Simplified to (* (* (- (+ x1 x2) (+ x3 x4)) (+ (+ x4 (- x1)) (+ x3 x2))) (+ (* (+ x3 (- x1 x2)) (+ x3 (- x1 x2))) (* x4 (- (- x4 x3) (- x1 x2)))))
* [exit]simplify:  Simplified to (* (* (- (+ x1 x2) (+ x3 x4)) (+ (+ x4 (- x1)) (+ x3 x2))) (+ (* (+ x3 (- x1 x2)) (+ x3 (- x1 x2))) (* x4 (- (- x4 x3) (- x1 x2)))))
* * * * [misc]progress:  [ 60 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (- (+ (- x1 x2) x3) x4)) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (- (+ (- x1 x2) x3) x4)) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))))
* * [misc]simplify:  iters left: 6 (37 enodes)
* * [misc]simplify:  iters left: 5 (101 enodes)
* * [misc]simplify:  iters left: 4 (279 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* (+ x3 (+ (+ x4 x2) (- x1))) x2) (* (- (+ x3 x1) (+ x2 x4)) (+ (- x1 x2) (+ x3 x4)))) (* (* (- (+ x3 x1) (+ x2 x4)) (* x4 x1)) (- (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3))) (* x4 x4)))) (- (* x4 x4) (* (+ x2 (- x1 x3)) (- (- x4 x1) (- x2 x3))))) (* (* (+ x3 (+ (+ x4 x2) (- x1))) (* (- (+ x3 x1) (+ x2 x4)) x3)) (+ (pow (+ x2 (- x1 x3)) 3) (pow x4 3))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* (+ x3 (+ (+ x4 x2) (- x1))) x2) (* (- (+ x3 x1) (+ x2 x4)) (+ (- x1 x2) (+ x3 x4)))) (* (* (- (+ x3 x1) (+ x2 x4)) (* x4 x1)) (- (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3))) (* x4 x4)))) (- (* x4 x4) (* (+ x2 (- x1 x3)) (- (- x4 x1) (- x2 x3))))) (* (* (+ x3 (+ (+ x4 x2) (- x1))) (* (- (+ x3 x1) (+ x2 x4)) x3)) (+ (pow (+ x2 (- x1 x3)) 3) (pow x4 3))))
* [enter]simplify:  Simplifying (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (46 enodes)
* * [misc]simplify:  iters left: 4 (113 enodes)
* * [misc]simplify:  iters left: 3 (327 enodes)
* [exit]simplify:  Simplified to (* (- (* x4 x4) (* (+ (- x2 x3) x1) (- (- x4 x1) (- x2 x3)))) (* (+ (- x1 x2) (- x3 x4)) (+ x3 (+ (+ x2 x4) (- x1)))))
* [exit]simplify:  Simplified to (* (- (* x4 x4) (* (+ (- x2 x3) x1) (- (- x4 x1) (- x2 x3)))) (* (+ (- x1 x2) (- x3 x4)) (+ x3 (+ (+ x2 x4) (- x1)))))
* * * * [misc]progress:  [ 61 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (- (+ (- x1 x2) x3) x4)) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))) (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (- (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (- (+ (- x1 x2) x3) x4)) (* (+ (+ (+ (- x1) x2) x3) x4) (* x2 (- (* (+ (- x1 x2) x3) (+ (- x1 x2) x3)) (* x4 x4))))) (- (- (+ x1 x2) x3) x4)) (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))))
* * [misc]simplify:  iters left: 6 (32 enodes)
* * [misc]simplify:  iters left: 5 (77 enodes)
* * [misc]simplify:  iters left: 4 (210 enodes)
* [exit]simplify:  Simplified to (+ (* (- (+ x2 x1) (+ x3 x4)) (+ (* (* (+ x3 (+ (+ x4 x2) (- x1))) (* (+ (- x1 x2) (+ x3 x4)) x2)) (+ (- x1 x2) (- x3 x4))) (* (* (+ (- x1 x2) (- x3 x4)) (* x4 x1)) (- (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))) (* x4 x4))))) (* (* (+ x3 (+ (+ x4 x2) (- x1))) (* (+ (- x1 x2) (- x3 x4)) x3)) (* (- (+ x2 x1) (+ x3 x4)) (+ (- x2 x3) (+ x1 x4)))))
* [exit]simplify:  Simplified to (+ (* (- (+ x2 x1) (+ x3 x4)) (+ (* (* (+ x3 (+ (+ x4 x2) (- x1))) (* (+ (- x1 x2) (+ x3 x4)) x2)) (+ (- x1 x2) (- x3 x4))) (* (* (+ (- x1 x2) (- x3 x4)) (* x4 x1)) (- (* (+ (+ x2 x3) (- x1)) (+ (+ x2 x3) (- x1))) (* x4 x4))))) (* (* (+ x3 (+ (+ x4 x2) (- x1))) (* (+ (- x1 x2) (- x3 x4)) x3)) (* (- (+ x2 x1) (+ x3 x4)) (+ (- x2 x3) (+ x1 x4)))))
* [enter]simplify:  Simplifying (* (* (+ (+ (+ (- x1) x2) x3) x4) (- (+ (- x1 x2) x3) x4)) (- (- (+ x1 x2) x3) x4))
* * [misc]simplify:  iters left: 6 (16 enodes)
* * [misc]simplify:  iters left: 5 (32 enodes)
* * [misc]simplify:  iters left: 4 (69 enodes)
* * [misc]simplify:  iters left: 3 (196 enodes)
* [exit]simplify:  Simplified to (* (+ (+ (- x1) (+ x2 x4)) x3) (* (+ (- x3 x4) (- x1 x2)) (- (+ x1 x2) (+ x3 x4))))
* [exit]simplify:  Simplified to (* (+ (+ (- x1) (+ x2 x4)) x3) (* (+ (- x3 x4) (- x1 x2)) (- (+ x1 x2) (+ x3 x4))))
* * * * [misc]progress:  [ 62 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 3) (pow (* x2 (+ (+ (- x1 x2) x3) x4)) 3)) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))) (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 3) (pow (* x2 (+ (+ (- x1 x2) x3) x4)) 3)) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))))
* * [misc]simplify:  iters left: 6 (37 enodes)
* * [misc]simplify:  iters left: 5 (107 enodes)
* * [misc]simplify:  iters left: 4 (276 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* x3 (- x2 (- x3 x1)))) (* (* x3 x4) (* x4 x4))) (- (* (* (- (+ x4 x1) (- x2 x3)) x2) (* (- (+ x4 x1) (- x2 x3)) x2)) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (* (- (+ x4 x1) (- x2 x3)) x2) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))))) (+ (* (+ (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* (- (- x4 x1) (- x2 x3)) x4)) (pow (* (- (+ x4 x1) (- x2 x3)) x2) 3)) (* (* (+ (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* (- (- x4 x1) (- x2 x3)) x4)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* x3 (- x2 (- x3 x1)))) (* (* x3 x4) (* x4 x4))) (- (* (* (- (+ x4 x1) (- x2 x3)) x2) (* (- (+ x4 x1) (- x2 x3)) x2)) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (* (- (+ x4 x1) (- x2 x3)) x2) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))))) (+ (* (+ (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* (- (- x4 x1) (- x2 x3)) x4)) (pow (* (- (+ x4 x1) (- x2 x3)) x2) 3)) (* (* (+ (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* (- (- x4 x1) (- x2 x3)) x4)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))))))
* [enter]simplify:  Simplifying (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (27 enodes)
* * [misc]simplify:  iters left: 5 (71 enodes)
* * [misc]simplify:  iters left: 4 (173 enodes)
* * [misc]simplify:  iters left: 3 (376 enodes)
* [exit]simplify:  Simplified to (* (+ (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* (+ (- x4 x2) (- x3 x1)) x4)) (+ (* (* x2 (- (+ x4 x1) (- x2 x3))) (- (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))))
* [exit]simplify:  Simplified to (* (+ (* (- x2 (- x3 x1)) (- x2 (- x3 x1))) (* (+ (- x4 x2) (- x3 x1)) x4)) (+ (* (* x2 (- (+ x4 x1) (- x2 x3))) (- (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))))
* * * * [misc]progress:  [ 63 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 3) (pow (* x2 (+ (+ (- x1 x2) x3) x4)) 3)) (- (- (+ x1 x2) x3) x4)) (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))) (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (- (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 3) (pow (* x2 (+ (+ (- x1 x2) x3) x4)) 3)) (- (- (+ x1 x2) x3) x4)) (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))))
* * [misc]simplify:  iters left: 6 (33 enodes)
* * [misc]simplify:  iters left: 5 (83 enodes)
* * [misc]simplify:  iters left: 4 (192 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- (+ x2 x1) (- x3 x4)) (- (+ x2 x1) (+ x3 x4))) x3) (+ (* (* (+ (+ x3 x4) (- x1 x2)) x2) (- (* (+ (+ x3 x4) (- x1 x2)) x2) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1)))) (* (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1)) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (pow (* x4 x1) 3)) (pow (+ (+ (- x1) x2) (- x3 x4)) 3)) (* (* (- (+ x2 x1) (+ x3 x4)) (pow x2 3)) (pow (+ (+ x3 x4) (- x1 x2)) 3))))
* [exit]simplify:  Simplified to (+ (* (* (* (- (+ x2 x1) (- x3 x4)) (- (+ x2 x1) (+ x3 x4))) x3) (+ (* (* (+ (+ x3 x4) (- x1 x2)) x2) (- (* (+ (+ x3 x4) (- x1 x2)) x2) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1)))) (* (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1)) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (pow (* x4 x1) 3)) (pow (+ (+ (- x1) x2) (- x3 x4)) 3)) (* (* (- (+ x2 x1) (+ x3 x4)) (pow x2 3)) (pow (+ (+ x3 x4) (- x1 x2)) 3))))
* [enter]simplify:  Simplifying (* (+ (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (- (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))))) (- (- (+ x1 x2) x3) x4))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (56 enodes)
* * [misc]simplify:  iters left: 4 (120 enodes)
* * [misc]simplify:  iters left: 3 (281 enodes)
* [exit]simplify:  Simplified to (* (- (+ x2 x1) (+ x3 x4)) (- (* (* x2 (+ (+ x3 x4) (- x1 x2))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (* x2 (+ (+ x3 x4) (- x1 x2))) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))))))
* [exit]simplify:  Simplified to (* (- (+ x2 x1) (+ x3 x4)) (- (* (* x2 (+ (+ x3 x4) (- x1 x2))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (* x2 (+ (+ x3 x4) (- x1 x2))) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))))))
* * * * [misc]progress:  [ 64 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (- (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))) (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (- (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))))
* * [misc]simplify:  iters left: 6 (33 enodes)
* * [misc]simplify:  iters left: 5 (87 enodes)
* * [misc]simplify:  iters left: 4 (185 enodes)
* * [misc]simplify:  iters left: 3 (444 enodes)
* [exit]simplify:  Simplified to (* (+ (+ (* (* x3 x4) (* x4 x4)) (* (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x3 (+ (- x2 x3) x1)))) (* (+ (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1)) (* x2 (+ (- x1 x2) (+ x3 x4)))) (- (* x4 x4) (* (+ (- x2 x3) x1) (+ (- x4 x2) (- x3 x1)))))) (- (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1)) (* x2 (+ (- x1 x2) (+ x3 x4)))))
* [exit]simplify:  Simplified to (* (+ (+ (* (* x3 x4) (* x4 x4)) (* (* (+ (- x2 x3) x1) (+ (- x2 x3) x1)) (* x3 (+ (- x2 x3) x1)))) (* (+ (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1)) (* x2 (+ (- x1 x2) (+ x3 x4)))) (- (* x4 x4) (* (+ (- x2 x3) x1) (+ (- x4 x2) (- x3 x1)))))) (- (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1)) (* x2 (+ (- x1 x2) (+ x3 x4)))))
* [enter]simplify:  Simplifying (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (56 enodes)
* * [misc]simplify:  iters left: 4 (110 enodes)
* * [misc]simplify:  iters left: 3 (198 enodes)
* * [misc]simplify:  iters left: 2 (297 enodes)
* [exit]simplify:  Simplified to (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x2 (+ (- x1 x2) (+ x3 x4)))) (+ (* (- (- x4 x1) (- x2 x3)) x4) (* (- (+ x2 x1) x3) (- (+ x2 x1) x3))))
* [exit]simplify:  Simplified to (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x2 (+ (- x1 x2) (+ x3 x4)))) (+ (* (- (- x4 x1) (- x2 x3)) x4) (* (- (+ x2 x1) x3) (- (+ x2 x1) x3))))
* * * * [misc]progress:  [ 65 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (* (- (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (- (- (+ x1 x2) x3) x4)) (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))) (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* (- (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x2 (+ (+ (- x1 x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (- (- (+ x1 x2) x3) x4)) (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))))
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (62 enodes)
* * [misc]simplify:  iters left: 4 (126 enodes)
* * [misc]simplify:  iters left: 3 (322 enodes)
* [exit]simplify:  Simplified to (* (- (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1)) (* x2 (- (+ x4 x1) (- x2 x3)))) (+ (* (* x3 (+ (- x2 x3) (+ x4 x1))) (+ x1 (- (- x2 x3) x4))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (* x4 x1)) (+ (+ (- x1) x2) (- x3 x4))) (* (* (- (+ x2 x1) (+ x3 x4)) (- (+ x4 x1) (- x2 x3))) x2))))
* [exit]simplify:  Simplified to (* (- (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1)) (* x2 (- (+ x4 x1) (- x2 x3)))) (+ (* (* x3 (+ (- x2 x3) (+ x4 x1))) (+ x1 (- (- x2 x3) x4))) (+ (* (* (- (+ x2 x1) (+ x3 x4)) (* x4 x1)) (+ (+ (- x1) x2) (- x3 x4))) (* (* (- (+ x2 x1) (+ x3 x4)) (- (+ x4 x1) (- x2 x3))) x2))))
* [enter]simplify:  Simplifying (* (- (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (- (+ x1 x2) x3) x4))
* * [misc]simplify:  iters left: 6 (19 enodes)
* * [misc]simplify:  iters left: 5 (41 enodes)
* * [misc]simplify:  iters left: 4 (75 enodes)
* * [misc]simplify:  iters left: 3 (147 enodes)
* * [misc]simplify:  iters left: 2 (219 enodes)
* * [misc]simplify:  iters left: 1 (303 enodes)
* [exit]simplify:  Simplified to (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x2 (- (+ x3 x1) (- x2 x4)))) (- (- x2 x3) (- x4 x1)))
* [exit]simplify:  Simplified to (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x2 (- (+ x3 x1) (- x2 x4)))) (- (- x2 x3) (- x4 x1)))
* * * * [misc]progress:  [ 66 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (+ (pow (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) 3) (pow (* x3 (+ (- (+ x1 x2) x3) x4)) 3)) (+ (* (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (- (* (* x3 (+ (- (+ x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (pow (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) 3) (pow (* x3 (+ (- (+ x1 x2) x3) x4)) 3))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (130 enodes)
* * [misc]simplify:  iters left: 3 (347 enodes)
* [exit]simplify:  Simplified to (+ (pow (* x3 (- (+ x2 x1) (- x3 x4))) 3) (pow (+ (* x2 (- (+ x3 x1) (- x2 x4))) (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1))) 3))
* [exit]simplify:  Simplified to (+ (pow (* x3 (- (+ x2 x1) (- x3 x4))) 3) (pow (+ (* x2 (- (+ x3 x1) (- x2 x4))) (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1))) 3))
* [enter]simplify:  Simplifying (+ (* (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (- (* (* x3 (+ (- (+ x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (70 enodes)
* * [misc]simplify:  iters left: 4 (158 enodes)
* * [misc]simplify:  iters left: 3 (337 enodes)
* [exit]simplify:  Simplified to (- (* (* x3 (- (+ x2 x1) (- x3 x4))) (* x3 (- (+ x2 x1) (- x3 x4)))) (* (- (- (* x3 (- (+ x2 x1) (- x3 x4))) (* x2 (- (+ x4 x1) (- x2 x3)))) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))) (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1)))))
* [exit]simplify:  Simplified to (- (* (* x3 (- (+ x2 x1) (- x3 x4))) (* x3 (- (+ x2 x1) (- x3 x4)))) (* (- (- (* x3 (- (+ x2 x1) (- x3 x4))) (* x2 (- (+ x4 x1) (- x2 x3)))) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))) (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1)))))
* * * * [misc]progress:  [ 67 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (* 1 (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 68 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (/ (- (* (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (* (* x3 (+ (- (+ x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4)))) (- (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (* (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (* (* x3 (+ (- (+ x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (155 enodes)
* * [misc]simplify:  iters left: 3 (372 enodes)
* [exit]simplify:  Simplified to (* (+ (- (* x2 (- (+ x4 x1) (- x2 x3))) (* x3 (- (+ x2 x1) (- x3 x4)))) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))) (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* x3 (- (+ x2 x1) (- x3 x4)))) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))))
* [exit]simplify:  Simplified to (* (+ (- (* x2 (- (+ x4 x1) (- x2 x3))) (* x3 (- (+ x2 x1) (- x3 x4)))) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))) (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* x3 (- (+ x2 x1) (- x3 x4)))) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))))
* [enter]simplify:  Simplifying (- (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (53 enodes)
* * [misc]simplify:  iters left: 4 (95 enodes)
* * [misc]simplify:  iters left: 3 (165 enodes)
* * [misc]simplify:  iters left: 2 (239 enodes)
* * [misc]simplify:  iters left: 1 (312 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1)) (- (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)))
* [exit]simplify:  Simplified to (+ (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1)) (- (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (- x2 x3) (+ x4 x1)) x3)))
* * * * [misc]progress:  [ 69 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (- (+ x1 x2) x3))) (* x3 x4)) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (- (+ x1 x2) x3)))
* * [misc]simplify:  iters left: 6 (19 enodes)
* * [misc]simplify:  iters left: 5 (43 enodes)
* * [misc]simplify:  iters left: 4 (80 enodes)
* * [misc]simplify:  iters left: 3 (133 enodes)
* * [misc]simplify:  iters left: 2 (191 enodes)
* * [misc]simplify:  iters left: 1 (253 enodes)
* [exit]simplify:  Simplified to (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (- (+ x2 x1) x3) x3)) (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1)))
* [exit]simplify:  Simplified to (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (- (+ x2 x1) x3) x3)) (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1)))
* * * * [misc]progress:  [ 70 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (- (+ x1 x2) x3) x3)) (* x4 x3)) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (- (+ x1 x2) x3) x3))
* * [misc]simplify:  iters left: 6 (19 enodes)
* * [misc]simplify:  iters left: 5 (43 enodes)
* * [misc]simplify:  iters left: 4 (80 enodes)
* * [misc]simplify:  iters left: 3 (133 enodes)
* * [misc]simplify:  iters left: 2 (191 enodes)
* * [misc]simplify:  iters left: 1 (253 enodes)
* [exit]simplify:  Simplified to (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (- (+ x2 x1) x3) x3)) (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1)))
* [exit]simplify:  Simplified to (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (- (+ x2 x1) x3) x3)) (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1)))
* * * * [misc]progress:  [ 71 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (+ (* x2 (+ (+ (- x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4)))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (* x2 (+ (+ (- x1 x2) x3) x4)) (* x3 (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (38 enodes)
* * [misc]simplify:  iters left: 4 (70 enodes)
* * [misc]simplify:  iters left: 3 (113 enodes)
* * [misc]simplify:  iters left: 2 (149 enodes)
* * [misc]simplify:  iters left: 1 (176 enodes)
* [exit]simplify:  Simplified to (+ (* (- (+ x1 x2) (- x3 x4)) x3) (* x2 (+ (+ x4 x3) (- x1 x2))))
* [exit]simplify:  Simplified to (+ (* (- (+ x1 x2) (- x3 x4)) x3) (* x2 (+ (+ x4 x3) (- x1 x2))))
* * * * [misc]progress:  [ 72 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (* x3 (+ (- (+ x1 x2) x3) x4)) (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4)))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 73 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ 0 (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ 0 (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (57 enodes)
* * [misc]simplify:  iters left: 4 (101 enodes)
* * [misc]simplify:  iters left: 3 (159 enodes)
* * [misc]simplify:  iters left: 2 (237 enodes)
* * [misc]simplify:  iters left: 1 (336 enodes)
* [exit]simplify:  Simplified to (+ (* x3 (- (+ (- x1 x3) (+ x4 x2)) (+ (* x4 x2) x1))) (- (* (- (+ x1 x4) (- x2 x3)) x2) (+ x4 (* x1 x2))))
* * * * [misc]progress:  [ 74 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (31 enodes)
* * [misc]simplify:  iters left: 5 (75 enodes)
* * [misc]simplify:  iters left: 4 (138 enodes)
* * [misc]simplify:  iters left: 3 (238 enodes)
* * [misc]simplify:  iters left: 2 (398 enodes)
* [exit]simplify:  Simplified to (- (+ (+ (* (* x1 x4) (- x3 (- x4 x2))) (* x2 (- (+ x1 x4) (- x2 x3)))) (- (* x3 (+ (- x2 x3) (+ x1 x4))) (* x3 (+ x1 (* x4 x2))))) (+ (* x2 x1) x4))
* * * * [misc]progress:  [ 75 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (31 enodes)
* * [misc]simplify:  iters left: 5 (75 enodes)
* * [misc]simplify:  iters left: 4 (138 enodes)
* * [misc]simplify:  iters left: 3 (238 enodes)
* * [misc]simplify:  iters left: 2 (398 enodes)
* [exit]simplify:  Simplified to (- (+ (+ (* (* x1 x4) (- x3 (- x4 x2))) (* x2 (- (+ x1 x4) (- x2 x3)))) (- (* x3 (+ (- x2 x3) (+ x1 x4))) (* x3 (+ x1 (* x4 x2))))) (+ (* x2 x1) x4))
* * * * [misc]progress:  [ 76 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) 0) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) 0) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (27 enodes)
* * [misc]simplify:  iters left: 5 (66 enodes)
* * [misc]simplify:  iters left: 4 (118 enodes)
* * [misc]simplify:  iters left: 3 (196 enodes)
* * [misc]simplify:  iters left: 2 (279 enodes)
* * [misc]simplify:  iters left: 1 (379 enodes)
* [exit]simplify:  Simplified to (- (- (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (- (+ x4 x1) (- x3 x2)) x3)) (* (+ (+ (- x1) x2) (- x3 x4)) (* x4 x1))) (* (+ x2 x3) x1)) x4)
* * * * [misc]progress:  [ 77 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x4 x3))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x4 x3))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (69 enodes)
* * [misc]simplify:  iters left: 4 (123 enodes)
* * [misc]simplify:  iters left: 3 (204 enodes)
* * [misc]simplify:  iters left: 2 (291 enodes)
* * [misc]simplify:  iters left: 1 (402 enodes)
* [exit]simplify:  Simplified to (- (- (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)) (* (- (+ (- x1) x2) (- x4 x3)) (* x4 x1))) (* x3 (+ (* x4 x2) x1))) (+ x4 (* x1 x2)))
* * * * [misc]progress:  [ 78 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x4 x3))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x4 x3))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (69 enodes)
* * [misc]simplify:  iters left: 4 (123 enodes)
* * [misc]simplify:  iters left: 3 (204 enodes)
* * [misc]simplify:  iters left: 2 (291 enodes)
* * [misc]simplify:  iters left: 1 (402 enodes)
* [exit]simplify:  Simplified to (- (- (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)) (* (- (+ (- x1) x2) (- x4 x3)) (* x4 x1))) (* x3 (+ (* x4 x2) x1))) (+ x4 (* x1 x2)))
* * * * [misc]progress:  [ 79 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (+ (* x1 x3) (* x2 x3)) (pow x3 2))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (+ (* x1 x3) (* x2 x3)) (pow x3 2))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (69 enodes)
* * [misc]simplify:  iters left: 4 (114 enodes)
* * [misc]simplify:  iters left: 3 (202 enodes)
* * [misc]simplify:  iters left: 2 (300 enodes)
* * [misc]simplify:  iters left: 1 (448 enodes)
* [exit]simplify:  Simplified to (- (+ (+ (* (+ (+ (- x1) (- x3 x4)) x2) (* x4 x1)) (* x3 (+ x2 (- x1 x3)))) (- (* x2 (- (+ x3 x1) (- x2 x4))) (* x3 (+ x1 (* x4 x2))))) (+ x4 (* x1 x2)))
* * * * [misc]progress:  [ 80 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* x1 x3) (+ (* x4 x3) (* x2 x3)))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* x1 x3) (+ (* x4 x3) (* x2 x3)))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (111 enodes)
* * [misc]simplify:  iters left: 3 (198 enodes)
* * [misc]simplify:  iters left: 2 (328 enodes)
* [exit]simplify:  Simplified to (- (+ (- (* x2 (- x3 (* x3 x4))) (* x1 (+ x2 x3))) (+ (+ (* x3 (+ x4 x1)) (* x2 (- (+ x4 x1) (- x2 x3)))) (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1)))) x4)
* * * * [misc]progress:  [ 81 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* x1 x3) (+ (* x4 x3) (* x2 x3)))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* x1 x3) (+ (* x4 x3) (* x2 x3)))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (111 enodes)
* * [misc]simplify:  iters left: 3 (198 enodes)
* * [misc]simplify:  iters left: 2 (328 enodes)
* [exit]simplify:  Simplified to (- (+ (- (* x2 (- x3 (* x3 x4))) (* x1 (+ x2 x3))) (+ (+ (* x3 (+ x4 x1)) (* x2 (- (+ x4 x1) (- x2 x3)))) (* (+ x2 (+ (- x3 x4) (- x1))) (* x4 x1)))) x4)
* * * * [misc]progress:  [ 82 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- 0 (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- 0 (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (68 enodes)
* * [misc]simplify:  iters left: 2 (99 enodes)
* * [misc]simplify:  iters left: 1 (150 enodes)
* [exit]simplify:  Simplified to (- (- (* (* x3 x4) (- x2)) (* x1 (+ x2 x3))) x4)
* * * * [misc]progress:  [ 83 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (40 enodes)
* * [misc]simplify:  iters left: 4 (71 enodes)
* * [misc]simplify:  iters left: 3 (111 enodes)
* * [misc]simplify:  iters left: 2 (150 enodes)
* * [misc]simplify:  iters left: 1 (192 enodes)
* [exit]simplify:  Simplified to (- (+ (* (- x3 x4) (* x1 x4)) (* (* x4 x2) (- x1 x3))) (+ (* x1 (+ x2 x3)) x4))
* * * * [misc]progress:  [ 84 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (40 enodes)
* * [misc]simplify:  iters left: 4 (71 enodes)
* * [misc]simplify:  iters left: 3 (111 enodes)
* * [misc]simplify:  iters left: 2 (150 enodes)
* * [misc]simplify:  iters left: 1 (192 enodes)
* [exit]simplify:  Simplified to (- (+ (* (- x3 x4) (* x1 x4)) (* (* x4 x2) (- x1 x3))) (+ (* x1 (+ x2 x3)) x4))
* * * [misc]progress:  adding candidates to table
* * [misc]progress:  iteration 3 / 4
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 4 ] rewriting at (2 1 1 1 1 2)
* * * * [misc]progress:  [ 2 / 4 ] rewriting at (2 1 1 1 1 2 1)
* * * * [misc]progress:  [ 3 / 4 ] rewriting at (2 1 1 1 1 1 1)
* * * * [misc]progress:  [ 4 / 4 ] rewriting at (2 1 1 1 2)
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 4 ] generating series at (2 1 1 1 1 2)
* [misc]approximate:  Taking taylor expansion of (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))) in (x3 x1 x2 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ x1 x2) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) (- x3)) into (- (+ x1 x2) x3)
* [misc]backup-simplify:  Simplify (+ (- (+ x1 x2) x3) 0) into (- (+ x1 x2) x3)
* [misc]backup-simplify:  Simplify (sqrt (- (+ x1 x2) x3)) into (sqrt (- (+ x1 x2) x3))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt (- (+ x1 x2) x3)))) into (* 1/2 (sqrt (/ 1 (- (+ x1 x2) x3))))
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ x1 x2) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) (- x3)) into (- (+ x1 x2) x3)
* [misc]backup-simplify:  Simplify (+ (- (+ x1 x2) x3) 0) into (- (+ x1 x2) x3)
* [misc]backup-simplify:  Simplify (sqrt (- (+ x1 x2) x3)) into (sqrt (- (+ x1 x2) x3))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt (- (+ x1 x2) x3)))) into (* 1/2 (sqrt (/ 1 (- (+ x1 x2) x3))))
* [misc]taylor:  Taking taylor expansion of (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x1 0) into x1
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (+ x1 (- x3)) into (- x1 x3)
* [misc]backup-simplify:  Simplify (+ (- x1 x3) x4) into (- (+ x1 x4) x3)
* [misc]backup-simplify:  Simplify (sqrt (- (+ x1 x4) x3)) into (sqrt (- (+ x1 x4) x3))
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt (- (+ x1 x4) x3)))) into (* 1/2 (sqrt (/ 1 (- (+ x1 x4) x3))))
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x1 0) into x1
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (+ x1 (- x3)) into (- x1 x3)
* [misc]backup-simplify:  Simplify (+ (- x1 x3) x4) into (- (+ x1 x4) x3)
* [misc]backup-simplify:  Simplify (sqrt (- (+ x1 x4) x3)) into (sqrt (- (+ x1 x4) x3))
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt (- (+ x1 x4) x3)))) into (* 1/2 (sqrt (/ 1 (- (+ x1 x4) x3))))
* [misc]taylor:  Taking taylor expansion of (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 0 x2) into x2
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (+ x2 (- x3)) into (- x2 x3)
* [misc]backup-simplify:  Simplify (+ (- x2 x3) x4) into (- (+ x2 x4) x3)
* [misc]backup-simplify:  Simplify (sqrt (- (+ x2 x4) x3)) into (sqrt (- (+ x2 x4) x3))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt (- (+ x2 x4) x3)))) into (* 1/2 (sqrt (/ 1 (- (+ x2 x4) x3))))
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 0 x2) into x2
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (+ x2 (- x3)) into (- x2 x3)
* [misc]backup-simplify:  Simplify (+ (- x2 x3) x4) into (- (+ x2 x4) x3)
* [misc]backup-simplify:  Simplify (sqrt (- (+ x2 x4) x3)) into (sqrt (- (+ x2 x4) x3))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt (- (+ x2 x4) x3)))) into (* 1/2 (sqrt (/ 1 (- (+ x2 x4) x3))))
* [misc]taylor:  Taking taylor expansion of (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x1 x2) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) 0) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) x4) into (+ x1 (+ x2 x4))
* [misc]backup-simplify:  Simplify (sqrt (+ x1 (+ x2 x4))) into (sqrt (+ x1 (+ x2 x4)))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt (+ x1 (+ x2 x4))))) into (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x1 x2) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) 0) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) x4) into (+ x1 (+ x2 x4))
* [misc]backup-simplify:  Simplify (sqrt (+ x1 (+ x2 x4))) into (sqrt (+ x1 (+ x2 x4)))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt (+ x1 (+ x2 x4))))) into (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))
* [misc]taylor:  Taking taylor expansion of (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x1 x2) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) 0) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) x4) into (+ x1 (+ x2 x4))
* [misc]backup-simplify:  Simplify (sqrt (+ x1 (+ x2 x4))) into (sqrt (+ x1 (+ x2 x4)))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt (+ x1 (+ x2 x4))))) into (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x1 x2) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) 0) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) x4) into (+ x1 (+ x2 x4))
* [misc]backup-simplify:  Simplify (sqrt (+ x1 (+ x2 x4))) into (sqrt (+ x1 (+ x2 x4)))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt (+ x1 (+ x2 x4))))) into (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))
* [misc]backup-simplify:  Simplify (* 0 (sqrt (+ x1 (+ x2 x4)))) into 0
* [misc]backup-simplify:  Simplify (* 0 (sqrt (+ x1 (+ x2 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))) (* 1 (sqrt (+ x1 (+ x2 x4))))) into (sqrt (+ x1 (+ x2 x4)))
* [misc]backup-simplify:  Simplify (+ (* 0 (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))) (* (sqrt (+ x1 (+ x2 x4))) (sqrt (+ x1 (+ x2 x4))))) into (+ x1 (+ x2 x4))
* [misc]taylor:  Taking taylor expansion of (+ x1 (+ x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x2 x4) into (+ x2 x4)
* [misc]backup-simplify:  Simplify (+ 0 (+ x2 x4)) into (+ x2 x4)
* [misc]taylor:  Taking taylor expansion of (+ x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 0 x4) into x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4))))) 2) (+)) (* 2 (sqrt (+ x1 (+ x2 x4))))) into (* -1/8 (sqrt (/ 1 (pow (+ x1 (+ x2 x4)) 3))))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4))))) 2) (+)) (* 2 (sqrt (+ x1 (+ x2 x4))))) into (* -1/8 (sqrt (/ 1 (pow (+ x1 (+ x2 x4)) 3))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* -1/8 (sqrt (/ 1 (pow (+ x1 (+ x2 x4)) 3))))) (+ (* 1 (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))) (* 0 (sqrt (+ x1 (+ x2 x4)))))) into (- (* 1/2 (sqrt (/ 1 (+ x1 (+ x2 x4))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* -1/8 (sqrt (/ 1 (pow (+ x1 (+ x2 x4)) 3))))) (+ (* (sqrt (+ x1 (+ x2 x4))) (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))) (* (- (* 1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))) (sqrt (+ x1 (+ x2 x4)))))) into (- 1)
* [misc]taylor:  Taking taylor expansion of (- 1) in x1
* [misc]taylor:  Taking taylor expansion of 1 in x1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* x2 (* 1 x3)))) (+ (* 1 (* 1 (* 1 (* x1 x3)))) (* -1 (pow (* 1 (* 1 (* 1 x3))) 2)))) into (- (+ (* x1 x3) (* x2 x3)) (pow x3 2))
* [misc]approximate:  Taking taylor expansion of (* (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in (x3 x1 x2 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]backup-simplify:  Simplify (* 1 0) into 0
* [misc]backup-simplify:  Simplify (* 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 +nan.0) (* 0 0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (* 0 +nan.0) (* (- +nan.0) 0)) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) (/ 1 x2)) into (+ (/ 1 x2) (/ 1 x1))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x1)) 0) into (+ (/ 1 x2) (/ 1 x1))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x1)) (/ 1 x4)) into (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (/ (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) (pow +nan.0 2) (+)) (* 2 0)) into (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) (/ 1 x2)) into (+ (/ 1 x2) (/ 1 x1))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x1)) 0) into (+ (/ 1 x2) (/ 1 x1))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x1)) (/ 1 x4)) into (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (/ (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) (pow +nan.0 2) (+)) (* 2 0)) into (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* 0 +nan.0) (* 0 0))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* (- +nan.0) +nan.0) (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) 0))) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* 0 +nan.0) (* 0 0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* (- +nan.0) (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) +nan.0) (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) 0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* 0 +nan.0) (* 0 0))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* (- +nan.0) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) +nan.0) (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) 0))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (* x1 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 0 x2) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x2)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))))) (* 2 (* (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))))) (* 2 (* (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* 0 +nan.0) (* 0 0)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* (- +nan.0) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) +nan.0) (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))) 0)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 0 x2) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x2)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x2)) into (- (* +nan.0 (/ 1 x2)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x2)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))))) (* 2 (* (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))))) (* 2 (* (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* 0 +nan.0) (* 0 0))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))) (+ (* (- +nan.0) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))) +nan.0) (* (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))) 0))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 3 (log x2)) into (* 3 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x2))) into (pow x2 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 3)) into (/ 1 (pow x2 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x2 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x2 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x2 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* (pow x2 2) x4) into (* (pow x2 2) x4)
* [misc]backup-simplify:  Simplify (/ 1 (* (pow x2 2) x4)) into (/ 1 (* (pow x2 2) x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (* x2 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (* 0 (* x2 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x2 x4))) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x2 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x2 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x2 2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 3 (log x4)) into (* 3 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x4))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 3)) into (/ 1 (pow x4 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 3) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x2) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 1 x2) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* x2 (pow x4 2)) into (* x2 (pow x4 2))
* [misc]backup-simplify:  Simplify (/ 1 (* x2 (pow x4 2))) into (/ 1 (* x2 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 0 x2) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x2)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- +nan.0)) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 2))) into (/ +nan.0 (pow x2 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 x4))) into (/ +nan.0 (* x2 x4))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 x4)) (- +nan.0)) into (- (+ +nan.0 (- (* +nan.0 (/ 1 (* x2 x4))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 (* x2 x4))))))) into (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- +nan.0)))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 (* x2 x4))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 (* x2 x4))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- +nan.0)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- +nan.0)))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- +nan.0)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- +nan.0)))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 (* x2 x4))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 (* x2 x4))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- +nan.0)) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))))) (* 2 (* (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))))) (* 2 (* (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* 0 +nan.0) (* 0 0)))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))) (+ (* (- +nan.0) (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))) (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))) +nan.0) (* (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))))) 0)))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 3 (log x2)) into (* 3 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x2))) into (pow x2 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 3)) into (/ 1 (pow x2 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x2 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x2 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x2 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* (pow x2 2) x4) into (* (pow x2 2) x4)
* [misc]backup-simplify:  Simplify (/ 1 (* (pow x2 2) x4)) into (/ 1 (* (pow x2 2) x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (* x2 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (* 0 (* x2 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x2 x4))) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x2 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x2 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x2 2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 3 (log x4)) into (* 3 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x4))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 3)) into (/ 1 (pow x4 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 3) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x2) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 1 x2) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 0 x2) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x2)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* x2 (pow x4 2)) into (* x2 (pow x4 2))
* [misc]backup-simplify:  Simplify (/ 1 (* x2 (pow x4 2))) into (/ 1 (* x2 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 x4))) into (/ +nan.0 (* x2 x4))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 2))) into (/ +nan.0 (pow x2 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x2)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) 0) into (- (* +nan.0 (/ 1 x2)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x2)))) into (- (* +nan.0 (/ 1 x2)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x2)))) into (- (* +nan.0 (/ 1 x2)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x2)))) into (- (* +nan.0 (/ 1 x2)))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- (* +nan.0 (/ 1 x2)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 x4)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (pow x2 2)))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 2))) into (/ +nan.0 (pow x2 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 x4))) into (/ +nan.0 (* x2 x4))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 x4)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- +nan.0)) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x2 2)) (/ 0 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (pow x2 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x2 x4)) (/ 0 (* x2 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (* x2 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x2)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) 0) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))))))) (* 2 (* (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)) (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))))))) (* 2 (* (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)) (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* 0 +nan.0) (* 0 0))))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) (+ (* (- +nan.0) (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))) (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))))) +nan.0) (* (- (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) 0))))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 4)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 4) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 4 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 4 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 4 in x1
* [misc]backup-simplify:  Simplify 4 into 4
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 4 (log x2)) into (* 4 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 4 (log x2))) into (pow x2 4)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 4)) into (/ 1 (pow x2 4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 3 (log x2)) into (* 3 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x2))) into (pow x2 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 3)) into (/ 1 (pow x2 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (* 1 (pow x2 2)) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x2 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x2 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x2 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* (pow x2 2) x4) into (* (pow x2 2) x4)
* [misc]backup-simplify:  Simplify (/ 1 (* (pow x2 2) x4)) into (/ 1 (* (pow x2 2) x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x2 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x2 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x2 2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 0 x2) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x2)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* (pow x2 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* (pow x2 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* (pow x2 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* (pow x2 2) x4) into (* (pow x2 2) x4)
* [misc]backup-simplify:  Simplify (* 0 (* (pow x2 2) x4)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow x2 2) 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* (pow x2 2) x4))) into (* (pow x2 2) x4)
* [misc]backup-simplify:  Simplify (/ 1 (* (pow x2 2) x4)) into (/ 1 (* (pow x2 2) x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x2 3)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x2 3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x2 3)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x2 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 3 (log x2)) into (* 3 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x2))) into (pow x2 3)
* [misc]backup-simplify:  Simplify (* 0 (pow x2 3)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 3 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 3 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x2 3))) into (pow x2 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 3)) into (/ 1 (pow x2 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* x2 (pow x4 2)) into (* x2 (pow x4 2))
* [misc]backup-simplify:  Simplify (/ 1 (* x2 (pow x4 2))) into (/ 1 (* x2 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 (pow x4 3)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 (pow x4 3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 (pow x4 3)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (pow x4 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 3 (log x4)) into (* 3 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x4))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (* x2 (pow x4 3)) into (* x2 (pow x4 3))
* [misc]backup-simplify:  Simplify (/ 1 (* x2 (pow x4 3))) into (/ 1 (* x2 (pow x4 3)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x4 3)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 3)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 3 (log x4)) into (* 3 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x4))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 3)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 3 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 3 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 3))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 3)) into (/ 1 (pow x4 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (* 1 (* x2 x4)) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 3) x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 3) x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 3) x2) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 3) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 1 x2) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (* x2 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (* 0 (* x2 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x2 x4))) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 1 (pow x4 2)) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 3 (log x4)) into (* 3 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x4))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 3)) into (/ 1 (pow x4 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 3) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 4)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 4) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 4)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 4) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 4 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 4 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 4 in x1
* [misc]backup-simplify:  Simplify 4 into 4
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 4 (log x4)) into (* 4 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 4 (log x4))) into (pow x4 4)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 4)) into (/ 1 (pow x4 4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x2) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 1 x2) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x2 3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x2 3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x2 3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 3 (log x2)) into (* 3 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x2))) into (pow x2 3)
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* (pow x2 3) x4) into (* (pow x2 3) x4)
* [misc]backup-simplify:  Simplify (/ 1 (* (pow x2 3) x4)) into (/ 1 (* (pow x2 3) x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x2 2) (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x2 2) (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* (pow x2 2) (pow x4 2)) into (* (pow x2 2) (pow x4 2))
* [misc]backup-simplify:  Simplify (/ 1 (* (pow x2 2) (pow x4 2))) into (/ 1 (* (pow x2 2) (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x2 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x2 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* x2 (pow x4 2)) into (* x2 (pow x4 2))
* [misc]backup-simplify:  Simplify (* 0 (* x2 (pow x4 2))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 (pow x4 2))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x2 (pow x4 2)))) into (* x2 (pow x4 2))
* [misc]backup-simplify:  Simplify (/ 1 (* x2 (pow x4 2))) into (/ 1 (* x2 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 2))) into (/ +nan.0 (pow x2 2))
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 x4))) into (/ +nan.0 (* x2 x4))
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x2)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) 0) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (* +nan.0 (/ 1 x4)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 x4)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (pow x2 2)))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 x4))) into (/ +nan.0 (* x2 x4))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 2))) into (/ +nan.0 (pow x2 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x2)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- +nan.0)) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 x4)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (pow x2 2)))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 3))) into (/ +nan.0 (pow x2 3))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 2))) into (/ +nan.0 (pow x2 2))
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x4 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x4 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x4)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* (pow x2 2) x4))) into (/ +nan.0 (* (pow x2 2) x4))
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (* x2 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x2 x4)) (/ 0 (* x2 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (* x2 x4)))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 x4))) into (/ +nan.0 (* x2 x4))
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x2 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x2 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x2)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (pow x2 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x2 2)) (/ 0 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (pow x2 2)))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 3))) into (/ +nan.0 (pow x4 3))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 (pow x4 2)))) into (/ +nan.0 (* x2 (pow x4 2)))
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) 0) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 3)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 x4)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ +nan.0 (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ +nan.0 (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* (pow x2 2) x4)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 3)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 3))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 3)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 3) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x2 2) x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x2 2) x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* (pow x2 2) x4) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 3))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 3)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 3) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 3 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 3 in x2
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 3 (log x4)) into (* 3 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x4))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 3)) into (/ 1 (pow x4 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 (pow x4 2)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) 0) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x2 2)) (/ 0 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (pow x2 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x2 x4)) (/ 0 (* x2 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (* x2 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x2)))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x2 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x2 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x2)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x2 2)) (/ 0 (pow x2 2))) (* 0 (/ 0 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x4))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x4 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x4 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x4)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))) (* 0 (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x2 x4)) (/ 0 (* x2 x4))) (* 0 (/ 0 (* x2 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 (* x2 x4))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x2))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x2))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x2))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) 0) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) 0) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- +nan.0)) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (* (- +nan.0) (* (/ 1 (/ 1 x4)) (* 1 (* (/ 1 (/ 1 x1)) (/ 1 x3))))) (+ (* (- +nan.0) (* (/ 1 (/ 1 x4)) (* (/ 1 (/ 1 x2)) (* 1 (/ 1 x3))))) (* (- +nan.0) (* (pow (/ 1 x4) -2) (* 1 (* 1 (/ 1 x3))))))) into (- (+ (* +nan.0 (/ (* x2 x4) x3)) (- (+ (* +nan.0 (/ (* x1 x4) x3)) (- (* +nan.0 (/ (pow x4 2) x3)))))))
* [misc]approximate:  Taking taylor expansion of (* (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in (x3 x1 x2 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]backup-simplify:  Simplify (* -1 0) into 0
* [misc]backup-simplify:  Simplify (* 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 +nan.0) (* 0 0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (* 0 +nan.0) (* (- +nan.0) 0)) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (/ -1 x1) (/ -1 x2)) into (- (+ (/ 1 x2) (/ 1 x1)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x1))) 0) into (- (+ (/ 1 x2) (/ 1 x1)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x1))) (/ -1 x4)) into (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))))
* [misc]backup-simplify:  Simplify (/ (- (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))) (pow +nan.0 2) (+)) (* 2 0)) into (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))
* [misc]backup-simplify:  Simplify (+ (/ -1 x1) (/ -1 x2)) into (- (+ (/ 1 x2) (/ 1 x1)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x1))) 0) into (- (+ (/ 1 x2) (/ 1 x1)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x1))) (/ -1 x4)) into (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))))
* [misc]backup-simplify:  Simplify (/ (- (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))) (pow +nan.0 2) (+)) (* 2 0)) into (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* 0 +nan.0) (* 0 0))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* (- +nan.0) +nan.0) (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) 0))) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* 0 +nan.0) (* 0 0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* (- +nan.0) (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) +nan.0) (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) 0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* 0 +nan.0) (* 0 0))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* (- +nan.0) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) +nan.0) (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) 0))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (* x1 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 0 x2) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x2)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* 0 +nan.0) (* 0 0)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* (- +nan.0) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) +nan.0) (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))) 0)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 0 x2) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x2)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x2)) into (- (* +nan.0 (/ 1 x2)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x2)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* 0 +nan.0) (* 0 0))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))) (+ (* (- +nan.0) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))) +nan.0) (* (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))) 0))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 3 (log x2)) into (* 3 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x2))) into (pow x2 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 3)) into (/ 1 (pow x2 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x2 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x2 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x2 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* (pow x2 2) x4) into (* (pow x2 2) x4)
* [misc]backup-simplify:  Simplify (/ 1 (* (pow x2 2) x4)) into (/ 1 (* (pow x2 2) x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (* x2 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (* 0 (* x2 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x2 x4))) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x2 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x2 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x2 2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 3 (log x4)) into (* 3 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x4))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 3)) into (/ 1 (pow x4 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 3) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x2) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 1 x2) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* x2 (pow x4 2)) into (* x2 (pow x4 2))
* [misc]backup-simplify:  Simplify (/ 1 (* x2 (pow x4 2))) into (/ 1 (* x2 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 0 x2) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x2)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- +nan.0)) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 2))) into (/ +nan.0 (pow x2 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 x4))) into (/ +nan.0 (* x2 x4))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 x4)) (- +nan.0)) into (- (+ +nan.0 (- (* +nan.0 (/ 1 (* x2 x4))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 (* x2 x4))))))) into (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- +nan.0)))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 (* x2 x4))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 (* x2 x4))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- +nan.0)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- +nan.0)))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- +nan.0)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- +nan.0)))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 (* x2 x4))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 (* x2 x4))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- +nan.0)) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* 0 +nan.0) (* 0 0)))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))) (+ (* (- +nan.0) (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))) (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))) +nan.0) (* (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))))) 0)))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 3 (log x2)) into (* 3 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x2))) into (pow x2 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 3)) into (/ 1 (pow x2 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x2 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x2 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x2 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* (pow x2 2) x4) into (* (pow x2 2) x4)
* [misc]backup-simplify:  Simplify (/ 1 (* (pow x2 2) x4)) into (/ 1 (* (pow x2 2) x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (* x2 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (* 0 (* x2 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x2 x4))) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x2 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x2 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x2 2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 3 (log x4)) into (* 3 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x4))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 3)) into (/ 1 (pow x4 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 3) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x2) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 1 x2) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 0 x2) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x2)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* x2 (pow x4 2)) into (* x2 (pow x4 2))
* [misc]backup-simplify:  Simplify (/ 1 (* x2 (pow x4 2))) into (/ 1 (* x2 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 x4))) into (/ +nan.0 (* x2 x4))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 2))) into (/ +nan.0 (pow x2 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x2)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) 0) into (- (* +nan.0 (/ 1 x2)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x2)))) into (- (* +nan.0 (/ 1 x2)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x2)))) into (- (* +nan.0 (/ 1 x2)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x2)))) into (- (* +nan.0 (/ 1 x2)))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- (* +nan.0 (/ 1 x2)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 x4)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (pow x2 2)))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 2))) into (/ +nan.0 (pow x2 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 x4))) into (/ +nan.0 (* x2 x4))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 x4)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- +nan.0)) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x2 2)) (/ 0 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (pow x2 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x2 x4)) (/ 0 (* x2 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (* x2 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x2)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) 0) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))) (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))) (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))))) (* 2 (* (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* 0 +nan.0) (* 0 0))))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) (+ (* (- +nan.0) (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4))))))))))))))))))))))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))))))))))) (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))))))))))))))))))))))) (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* (pow x1 2) x4)))))))))))))))))))))))))))))))))))))))))) +nan.0) (* (- (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) 0))))))))) into (- (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 4))) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 4)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 4) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 4 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 4 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 4 in x1
* [misc]backup-simplify:  Simplify 4 into 4
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 4 (log x2)) into (* 4 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 4 (log x2))) into (pow x2 4)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 4)) into (/ 1 (pow x2 4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 3 (log x2)) into (* 3 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x2))) into (pow x2 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 3)) into (/ 1 (pow x2 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) (pow x2 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (* 1 (pow x2 2)) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x2 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x2 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x2 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* (pow x2 2) x4) into (* (pow x2 2) x4)
* [misc]backup-simplify:  Simplify (/ 1 (* (pow x2 2) x4)) into (/ 1 (* (pow x2 2) x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x2 2)))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x2 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x2 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x2 2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 0 x2) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x2)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 3) x4))) (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (* (pow x2 2) x4)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* (pow x2 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* (pow x2 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* (pow x2 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* (pow x2 2) x4) into (* (pow x2 2) x4)
* [misc]backup-simplify:  Simplify (* 0 (* (pow x2 2) x4)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow x2 2) 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* (pow x2 2) x4))) into (* (pow x2 2) x4)
* [misc]backup-simplify:  Simplify (/ 1 (* (pow x2 2) x4)) into (/ 1 (* (pow x2 2) x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x2 3)))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x2 3)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x2 3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x2 3)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x2 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 3 (log x2)) into (* 3 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x2))) into (pow x2 3)
* [misc]backup-simplify:  Simplify (* 0 (pow x2 3)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 3 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 3 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x2 3))) into (pow x2 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 3)) into (/ 1 (pow x2 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* x2 (pow x4 2)) into (* x2 (pow x4 2))
* [misc]backup-simplify:  Simplify (/ 1 (* x2 (pow x4 2))) into (/ 1 (* x2 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 (pow x4 3)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 (pow x4 3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 (pow x4 3)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (pow x4 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 3 (log x4)) into (* 3 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x4))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (* x2 (pow x4 3)) into (* x2 (pow x4 3))
* [misc]backup-simplify:  Simplify (/ 1 (* x2 (pow x4 3))) into (/ 1 (* x2 (pow x4 3)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (pow x4 3)))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (pow x4 3)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 3)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 3 (log x4)) into (* 3 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x4))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 3)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 3 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 3 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 3))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 3)) into (/ 1 (pow x4 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) (* x2 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (* 1 (* x2 x4)) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 3) x2))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 3) x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 3) x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 3) x2) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 3) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 1 x2) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (* x2 x4)))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (* x2 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (* 0 (* x2 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x2 x4))) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 1 (pow x4 2)) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 3 (log x4)) into (* 3 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x4))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 3)) into (/ 1 (pow x4 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 3))) (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 3))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 3)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 3) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 4))) (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 4)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 4) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 4))) (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 4)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 4) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 4 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 4 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 4 in x1
* [misc]backup-simplify:  Simplify 4 into 4
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 4 (log x4)) into (* 4 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 4 (log x4))) into (pow x4 4)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 4)) into (/ 1 (pow x4 4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) x2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x2) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 1 x2) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x2 3) x4))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x2 3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x2 3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x2 3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 3) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 3 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 3 in x1
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 3 (log x2)) into (* 3 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x2))) into (pow x2 3)
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* (pow x2 3) x4) into (* (pow x2 3) x4)
* [misc]backup-simplify:  Simplify (/ 1 (* (pow x2 3) x4)) into (/ 1 (* (pow x2 3) x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x2 2) (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x2 2) (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x2 2) (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* (pow x2 2) (pow x4 2)) into (* (pow x2 2) (pow x4 2))
* [misc]backup-simplify:  Simplify (/ 1 (* (pow x2 2) (pow x4 2))) into (/ 1 (* (pow x2 2) (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 (* x2 (pow x4 2))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x2 (pow x4 2)))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x2 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* x2 (pow x4 2)) into (* x2 (pow x4 2))
* [misc]backup-simplify:  Simplify (* 0 (* x2 (pow x4 2))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 (pow x4 2))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x2 (pow x4 2)))) into (* x2 (pow x4 2))
* [misc]backup-simplify:  Simplify (/ 1 (* x2 (pow x4 2))) into (/ 1 (* x2 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x1 2) x4))) (- (* +nan.0 (/ 1 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x1 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 2))) into (/ +nan.0 (pow x2 2))
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 x4))) into (/ +nan.0 (* x2 x4))
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x2)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) 0) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (* +nan.0 (/ 1 x4)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 x4)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (* +nan.0 (/ 1 x4)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (pow x2 2)))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 x4))) into (/ +nan.0 (* x2 x4))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 2))) into (/ +nan.0 (pow x2 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x2)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- +nan.0)) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 x4)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x4)) (- +nan.0)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (pow x2 2))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (pow x2 2)))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 3))) into (/ +nan.0 (pow x2 3))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x2 2))) into (/ +nan.0 (pow x2 2))
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x4 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x4 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x4)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* (pow x2 2) x4))) into (/ +nan.0 (* (pow x2 2) x4))
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (* x2 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x2 x4)) (/ 0 (* x2 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (* x2 x4)))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 x4))) into (/ +nan.0 (* x2 x4))
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x2 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x2 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x2)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (pow x2 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x2 2)) (/ 0 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (pow x2 2)))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 3))) into (/ +nan.0 (pow x4 3))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (* x2 (pow x4 2)))) into (/ +nan.0 (* x2 (pow x4 2)))
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) 0) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 3)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* x2 x4)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ +nan.0 (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ +nan.0 (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (* (pow x2 2) x4)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 2)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x2 3)) (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 3))) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 3))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 3)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 3) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* (pow x2 2) x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* (pow x2 2) x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x2 2) x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* (pow x2 2) x4) in x2
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 3))) (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 3))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 3)) in x2
* [misc]taylor:  Taking taylor expansion of (pow x4 3) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 3 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 3 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 3 in x2
* [misc]backup-simplify:  Simplify 3 into 3
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 3 (log x4)) into (* 3 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 3 (log x4))) into (pow x4 3)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 3)) into (/ 1 (pow x4 3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (* +nan.0 (/ 1 (* x2 (pow x4 2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (* x2 (pow x4 2))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 (pow x4 2)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 (pow x4 2))) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 (pow x4 2)) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x2
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x2
* [misc]taylor:  Taking taylor expansion of 2 in x2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) 0) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x2 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x2))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x2 2)) (/ 0 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (pow x2 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x2 x4)) (/ 0 (* x2 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 (* x2 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x2)))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x2 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x2 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x2)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x2))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x2 2)) (/ 0 (pow x2 2))) (* 0 (/ 0 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 (pow x2 2))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x4))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x4 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x4 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x4)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))) (* 0 (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x2 x4)) (/ 0 (* x2 x4))) (* 0 (/ 0 (* x2 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 (/ 1 (* x2 x4))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x2))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x2))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x2))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) 0) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) 0) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 (pow x4 2))) into (/ +nan.0 (pow x4 2))
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- +nan.0)) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 (pow x4 2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (* (- +nan.0) (* (/ 1 (/ 1 (- x4))) (* 1 (* (/ 1 (/ 1 (- x1))) (/ 1 (- x3)))))) (+ (* (- +nan.0) (* (/ 1 (/ 1 (- x4))) (* (/ 1 (/ 1 (- x2))) (* 1 (/ 1 (- x3)))))) (* (- +nan.0) (* (pow (/ 1 (- x4)) -2) (* 1 (* 1 (/ 1 (- x3)))))))) into (- (+ (* +nan.0 (/ (* x2 x4) x3)) (- (+ (* +nan.0 (/ (* x1 x4) x3)) (- (* +nan.0 (/ (pow x4 2) x3)))))))
* * * * [misc]progress:  [ 2 / 4 ] generating series at (2 1 1 1 1 2 1)
* [misc]approximate:  Taking taylor expansion of (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) in (x3 x1 x2 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ x1 x2) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) (- x3)) into (- (+ x1 x2) x3)
* [misc]backup-simplify:  Simplify (+ (- (+ x1 x2) x3) 0) into (- (+ x1 x2) x3)
* [misc]backup-simplify:  Simplify (sqrt (- (+ x1 x2) x3)) into (sqrt (- (+ x1 x2) x3))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt (- (+ x1 x2) x3)))) into (* 1/2 (sqrt (/ 1 (- (+ x1 x2) x3))))
* [misc]taylor:  Taking taylor expansion of (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x1 0) into x1
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (+ x1 (- x3)) into (- x1 x3)
* [misc]backup-simplify:  Simplify (+ (- x1 x3) x4) into (- (+ x1 x4) x3)
* [misc]backup-simplify:  Simplify (sqrt (- (+ x1 x4) x3)) into (sqrt (- (+ x1 x4) x3))
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt (- (+ x1 x4) x3)))) into (* 1/2 (sqrt (/ 1 (- (+ x1 x4) x3))))
* [misc]taylor:  Taking taylor expansion of (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 0 x2) into x2
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (+ x2 (- x3)) into (- x2 x3)
* [misc]backup-simplify:  Simplify (+ (- x2 x3) x4) into (- (+ x2 x4) x3)
* [misc]backup-simplify:  Simplify (sqrt (- (+ x2 x4) x3)) into (sqrt (- (+ x2 x4) x3))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt (- (+ x2 x4) x3)))) into (* 1/2 (sqrt (/ 1 (- (+ x2 x4) x3))))
* [misc]taylor:  Taking taylor expansion of (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x1 x2) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) 0) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) x4) into (+ x1 (+ x2 x4))
* [misc]backup-simplify:  Simplify (sqrt (+ x1 (+ x2 x4))) into (sqrt (+ x1 (+ x2 x4)))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt (+ x1 (+ x2 x4))))) into (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))
* [misc]taylor:  Taking taylor expansion of (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ x1 x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ x1 x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ x1 x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x1 x2) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) 0) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) x4) into (+ x1 (+ x2 x4))
* [misc]backup-simplify:  Simplify (sqrt (+ x1 (+ x2 x4))) into (sqrt (+ x1 (+ x2 x4)))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt (+ x1 (+ x2 x4))))) into (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))
* [misc]backup-simplify:  Simplify (* 0 (sqrt (+ x1 (+ x2 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))) (* 1 (sqrt (+ x1 (+ x2 x4))))) into (sqrt (+ x1 (+ x2 x4)))
* [misc]taylor:  Taking taylor expansion of (sqrt (+ x1 (+ x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ x1 (+ x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x2 x4) into (+ x2 x4)
* [misc]backup-simplify:  Simplify (+ 0 (+ x2 x4)) into (+ x2 x4)
* [misc]backup-simplify:  Simplify (sqrt (+ x2 x4)) into (sqrt (+ x2 x4))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt (+ x2 x4)))) into (* 1/2 (sqrt (/ 1 (+ x2 x4))))
* [misc]taylor:  Taking taylor expansion of (sqrt (+ x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 0 x4) into x4
* [misc]backup-simplify:  Simplify (sqrt x4) into (sqrt x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt x4))) into (* 1/2 (sqrt (/ 1 x4)))
* [misc]taylor:  Taking taylor expansion of (sqrt x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4))))) 2) (+)) (* 2 (sqrt (+ x1 (+ x2 x4))))) into (* -1/8 (sqrt (/ 1 (pow (+ x1 (+ x2 x4)) 3))))
* [misc]backup-simplify:  Simplify (+ (* 0 (* -1/8 (sqrt (/ 1 (pow (+ x1 (+ x2 x4)) 3))))) (+ (* 1 (* -1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))) (* 0 (sqrt (+ x1 (+ x2 x4)))))) into (- (* 1/2 (sqrt (/ 1 (+ x1 (+ x2 x4))))))
* [misc]taylor:  Taking taylor expansion of (- (* 1/2 (sqrt (/ 1 (+ x1 (+ x2 x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of (* 1/2 (sqrt (/ 1 (+ x1 (+ x2 x4))))) in x1
* [misc]taylor:  Taking taylor expansion of 1/2 in x1
* [misc]backup-simplify:  Simplify 1/2 into 1/2
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 (+ x1 (+ x2 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (+ x1 (+ x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ x1 (+ x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ x2 x4) into (+ x2 x4)
* [misc]backup-simplify:  Simplify (+ 0 (+ x2 x4)) into (+ x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (+ x2 x4)) into (/ 1 (+ x2 x4))
* [misc]backup-simplify:  Simplify (sqrt (/ 1 (+ x2 x4))) into (sqrt (/ 1 (+ x2 x4)))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (+ x2 x4)) (/ 1 (+ x2 x4))))) into (- (/ 1 (pow (+ x2 x4) 2)))
* [misc]backup-simplify:  Simplify (/ (- (/ 1 (pow (+ x2 x4) 2))) (* 2 (sqrt (/ 1 (+ x2 x4))))) into (* -1/2 (sqrt (/ 1 (pow (+ x2 x4) 3))))
* [misc]backup-simplify:  Simplify (* 1/2 (sqrt (/ 1 (+ x2 x4)))) into (* 1/2 (sqrt (/ 1 (+ x2 x4))))
* [misc]backup-simplify:  Simplify (- (* 1/2 (sqrt (/ 1 (+ x2 x4))))) into (- (* 1/2 (sqrt (/ 1 (+ x2 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (* 1/2 (sqrt (/ 1 (+ x2 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (* 1/2 (sqrt (/ 1 (+ x2 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of 1/2 in x2
* [misc]backup-simplify:  Simplify 1/2 into 1/2
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 (+ x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (+ x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 0 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (sqrt (/ 1 x4)) into (sqrt (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 1 x4)))) into (- (/ 1 (pow x4 2)))
* [misc]backup-simplify:  Simplify (/ (- (/ 1 (pow x4 2))) (* 2 (sqrt (/ 1 x4)))) into (* -1/2 (sqrt (/ 1 (pow x4 3))))
* [misc]backup-simplify:  Simplify (* 1/2 (sqrt (/ 1 x4))) into (* 1/2 (sqrt (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (* 1/2 (sqrt (/ 1 x4)))) into (- (* 1/2 (sqrt (/ 1 x4))))
* [misc]taylor:  Taking taylor expansion of (- (* 1/2 (sqrt (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (* 1/2 (sqrt (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of 1/2 in x4
* [misc]backup-simplify:  Simplify 1/2 into 1/2
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]backup-simplify:  Simplify (+ (* 1/2 +nan.0) (* 0 0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (* 1/2 (sqrt (/ 1 (+ x2 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of 1/2 in x2
* [misc]backup-simplify:  Simplify 1/2 into 1/2
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 (+ x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (+ x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 0 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (sqrt (/ 1 x4)) into (sqrt (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 1 x4)))) into (- (/ 1 (pow x4 2)))
* [misc]backup-simplify:  Simplify (/ (- (/ 1 (pow x4 2))) (* 2 (sqrt (/ 1 x4)))) into (* -1/2 (sqrt (/ 1 (pow x4 3))))
* [misc]backup-simplify:  Simplify (* 1/2 (sqrt (/ 1 x4))) into (* 1/2 (sqrt (/ 1 x4)))
* [misc]taylor:  Taking taylor expansion of (* 1/2 (sqrt (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of 1/2 in x4
* [misc]backup-simplify:  Simplify 1/2 into 1/2
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]backup-simplify:  Simplify (+ (* 1/2 +nan.0) (* 0 0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of (* 1/2 (sqrt (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of 1/2 in x4
* [misc]backup-simplify:  Simplify 1/2 into 1/2
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]backup-simplify:  Simplify (+ (* 1/2 +nan.0) (* 0 0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (* (- +nan.0) (* 1 (* x2 (* 1 x3)))) (+ (* (- +nan.0) (* 1 (* 1 (* x1 x3)))) (* (- +nan.0) (pow (* 1 (* 1 (* 1 x3))) 2)))) into (- (+ (* +nan.0 (* x1 x3)) (- (+ (* +nan.0 (pow x3 2)) (- (* +nan.0 (* x2 x3)))))))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in (x3 x1 x2 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x1) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]backup-simplify:  Simplify (* 1 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 +nan.0) (* 0 0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) (/ 1 x2)) into (+ (/ 1 x2) (/ 1 x1))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x1)) 0) into (+ (/ 1 x2) (/ 1 x1))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x1)) (/ 1 x4)) into (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (/ (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) (pow +nan.0 2) (+)) (* 2 0)) into (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* 0 +nan.0) (* 0 0))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* 0 +nan.0) (* 0 0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0)) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) +nan.0))) (+ (* 0 +nan.0) (* 0 0))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (* x1 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 0 x2) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x2)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x2)) into (- (* +nan.0 (/ 1 x2)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x2)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (* (- +nan.0) (* 1 (* 1 (* (/ 1 (/ 1 x1)) 1)))) (+ (* (- +nan.0) (* 1 (* (/ 1 (/ 1 x2)) (* 1 1)))) (* (- +nan.0) (* (/ 1 (/ 1 x4)) (* 1 (* 1 1)))))) into (- (+ (* +nan.0 x1) (- (+ (* +nan.0 x2) (- (* +nan.0 x4))))))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in (x3 x1 x2 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ -1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (sqrt (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x1)) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ 1 (* 2 (sqrt 0))) into +nan.0
* [misc]backup-simplify:  Simplify (* -1 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 +nan.0) (* 0 0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (/ -1 x1) (/ -1 x2)) into (- (+ (/ 1 x2) (/ 1 x1)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x1))) 0) into (- (+ (/ 1 x2) (/ 1 x1)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x1))) (/ -1 x4)) into (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))))
* [misc]backup-simplify:  Simplify (/ (- (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4)))) (pow +nan.0 2) (+)) (* 2 0)) into (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* 0 +nan.0) (* 0 0))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* +nan.0 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* 0 +nan.0) (* 0 0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0))) 2) (+ (* 2 (* +nan.0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4))))))))))))) (* 2 0)) into (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))) (+ (* 0 (* +nan.0 (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 x4)))))))))) (+ (* 0 (* +nan.0 (+ (/ 1 x2) (- (+ (/ 1 x1) (/ 1 x4)) +nan.0)))) (+ (* 0 +nan.0) (* 0 0))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x2 2))) (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x2 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x2 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x2 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x2))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x2)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (log x2) into (log x2)
* [misc]backup-simplify:  Simplify (* 2 (log x2)) into (* 2 (log x2))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x2))) into (pow x2 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x2 2)) into (/ 1 (pow x2 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x1 2))) (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x1 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x1 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x4)) (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x2 x4))) (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x2 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* x2 x4) into (* x2 x4)
* [misc]backup-simplify:  Simplify (/ 1 (* x2 x4)) into (/ 1 (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (pow x4 2))) (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 (* x1 x4))) (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2)))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x1)) (- (* +nan.0 (/ 1 (* x1 x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 (* x1 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 (* x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of +nan.0 in x1
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (* 0 x2) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x2)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x2)) into (- (* +nan.0 (/ 1 x2)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x2)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x4) (- (+ (* +nan.0 (/ 1 x2)) (- +nan.0)))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x2)) into (/ +nan.0 x2)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (- (* +nan.0 (/ 1 x4)))) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ (/ +nan.0 x2) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]backup-simplify:  Simplify (- (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))) into (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* +nan.0 (/ 1 x2)) (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of +nan.0 in x2
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (+ +nan.0 0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of (- +nan.0) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* +nan.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (* +nan.0 (/ 1 x4)) into (/ +nan.0 x4)
* [misc]backup-simplify:  Simplify (- (/ +nan.0 x4)) into (- (* +nan.0 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))) into (- (+ +nan.0 (- (* +nan.0 (/ 1 x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ +nan.0 (- (* +nan.0 (/ 1 x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ +nan.0 (- (* +nan.0 (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (- (* +nan.0 (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* +nan.0 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of +nan.0 in x4
* [misc]backup-simplify:  Simplify +nan.0 into +nan.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* +nan.0 1) into +nan.0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ 0 (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- (- +nan.0)) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (- +nan.0) into (- +nan.0)
* [misc]backup-simplify:  Simplify (+ (* (- +nan.0) (* 1 (* 1 (* (/ 1 (/ 1 (- x1))) 1)))) (+ (* (- +nan.0) (* 1 (* (/ 1 (/ 1 (- x2))) (* 1 1)))) (* (- +nan.0) (* (/ 1 (/ 1 (- x4))) (* 1 (* 1 1)))))) into (- (+ (* +nan.0 x1) (- (+ (* +nan.0 x2) (- (* +nan.0 x4))))))
* * * * [misc]progress:  [ 3 / 4 ] generating series at (2 1 1 1 1 1 1)
* [misc]approximate:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x3
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- x1) x2) x3) x4) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- x1) x2) x3) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) x2) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 x2) into x2
* [misc]backup-simplify:  Simplify (+ x2 x3) into (+ x2 x3)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ (+ x2 x3) (- x4)) into (- (+ x2 x3) x4)
* [misc]backup-simplify:  Simplify (* 0 (- (+ x2 x3) x4)) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (+ (* 0 -1) (* x4 (- (+ x2 x3) x4))) into (- (+ (* x2 x4) (* x4 x3)) (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* x2 x4) (* x4 x3)) (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* x2 x4) (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* x4 -1) (* 0 (- (+ x2 x3) x4)))) into (- x4)
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]approximate:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x1) (/ 1 x4)) (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 x1)) (/ 1 x2)) (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* 1 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) -1) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ -1 x4) in x4
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ -1 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x2)) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) (- (/ 1 x4))) into (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 (/ 1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1)) into (- (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) (/ 1 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) (/ 1 (pow x4 2))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x3)) 0) into (+ (/ 1 x2) (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- (/ 0 1) (+ (* -1 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (/ 1 x3)) (/ 1 x4))) (* 0 -1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1) (+ (* -1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (* -1 (* 1 (* 1 (* (pow (/ 1 x4) -2) (/ 1 (/ 1 x1)))))) (+ (* 1 (* 1 (* (/ 1 (/ 1 x2)) (* (/ 1 (/ 1 x4)) (/ 1 (/ 1 x1)))))) (* 1 (* (/ 1 (/ 1 x3)) (* 1 (* (/ 1 (/ 1 x4)) (/ 1 (/ 1 x1)))))))) into (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2)))
* [misc]approximate:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in (x1 x4 x2 x3) around 0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x1)) (/ 1 (- x4))) (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x1)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (+ (- (/ 1 (- x1))) (/ 1 (- x2))) (/ 1 (- x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (* -1 (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) 1) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ -1 x2)) into (- (/ 1 x2))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x2)) (/ -1 x3)) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (- (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x3))) (/ 1 x4)) into (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (* 0 (/ -1 x4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1)) into (- (/ 1 (pow x4 2)) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (pow x4 2)) (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (/ 1 (* x4 x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x2 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 1) (* 0 0)) into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ -1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x3)) into (+ (/ 1 x2) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (/ 1 x2) (/ 1 x3))) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (/ 1 x2) (/ 1 x3)))) into (- (+ (/ 1 x2) (/ 1 x3)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x3))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x4) (+ (/ 1 x2) (/ 1 x3)))) (* 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x2 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (/ 1 x3)) into (- (/ 1 x3))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* 1 (* (pow (/ 1 (- x4)) -2) (/ 1 (/ 1 (- x1))))))) (+ (* -1 (* 1 (* (/ 1 (/ 1 (- x2))) (* (/ 1 (/ 1 (- x4))) (/ 1 (/ 1 (- x1))))))) (* -1 (* (/ 1 (/ 1 (- x3))) (* 1 (* (/ 1 (/ 1 (- x4))) (/ 1 (/ 1 (- x1))))))))) into (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2)))
* * * * [misc]progress:  [ 4 / 4 ] generating series at (2 1 1 1 2)
* [misc]approximate:  Taking taylor expansion of (* (* x2 x3) x4) in (x2 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (* x2 x3) x4) in x4
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* (* x2 x3) x4) in x3
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x2 x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* (* x2 x3) x4) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x3) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* x3 x4)) into (* x4 x3)
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* x3 0) (* 0 x4))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]approximate:  Taking taylor expansion of (* (* (/ 1 x2) (/ 1 x3)) (/ 1 x4)) in (x2 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x2) (/ 1 x3)) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (/ 1 x3)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x2) (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x2) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 x2) (/ 1 x3)) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (/ 1 x3)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* 1 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (* (/ 1 x3) (/ 1 x4)) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 (/ 1 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (* 0 (/ 1 x4))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 (/ 1 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (* 0 (/ 1 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x4))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 1 (* (/ 1 (/ 1 x4)) (* (/ 1 (/ 1 x3)) (/ 1 (/ 1 x2))))) into (* x2 (* x4 x3))
* [misc]approximate:  Taking taylor expansion of (* (* (/ 1 (- x2)) (/ 1 (- x3))) (/ 1 (- x4))) in (x2 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x2)) (/ 1 (- x3))) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (/ 1 (- x3))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x2)) (/ 1 (- x3))) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (/ 1 (- x3))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x2)) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (* (/ 1 (- x2)) (/ 1 (- x3))) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (/ 1 (- x3))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (* -1 (/ -1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (* (/ 1 x3) (/ -1 x4)) into (/ -1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (/ -1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ -1 x4) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ -1 x4) in x4
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ -1 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (* 0 (/ -1 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (* 0 (/ -1 x4))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 x4) (+ (* (/ -1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1) (+ (* -1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ -1 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (* 0 (/ -1 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 x4) (+ (* (/ -1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1) (+ (* -1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x4))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 x4) (+ (* (/ -1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* -1 (* (/ 1 (/ 1 (- x4))) (* (/ 1 (/ 1 (- x3))) (/ 1 (/ 1 (- x2)))))) into (* x2 (* x4 x3))
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (pow (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))) 1)) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (26 enodes)
* * [misc]simplify:  iters left: 3 (68 enodes)
* * [misc]simplify:  iters left: 2 (94 enodes)
* * [misc]simplify:  iters left: 1 (109 enodes)
* [exit]simplify:  Simplified to (* x3 (- (+ x1 x2) (- x3 x4)))
* [exit]simplify:  Simplified to (* x3 (- (+ x1 x2) (- x3 x4)))
* * * * [misc]progress:  [ 2 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (pow (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))) 1)) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 3 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (exp (+ (log (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))) (log (sqrt (+ (- (+ x1 x2) x3) x4)))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (log (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))) (log (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (31 enodes)
* * [misc]simplify:  iters left: 3 (46 enodes)
* * [misc]simplify:  iters left: 2 (55 enodes)
* * [misc]simplify:  iters left: 1 (63 enodes)
* [exit]simplify:  Simplified to (+ (log x3) (+ (log (sqrt (+ (- x2 x3) (+ x1 x4)))) (log (sqrt (+ (- x2 x3) (+ x1 x4))))))
* [exit]simplify:  Simplified to (+ (log x3) (+ (log (sqrt (+ (- x2 x3) (+ x1 x4)))) (log (sqrt (+ (- x2 x3) (+ x1 x4))))))
* * * * [misc]progress:  [ 4 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (exp (log (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (log (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (34 enodes)
* * [misc]simplify:  iters left: 3 (80 enodes)
* * [misc]simplify:  iters left: 2 (109 enodes)
* * [misc]simplify:  iters left: 1 (130 enodes)
* [exit]simplify:  Simplified to (log (* x3 (+ (+ x2 x4) (- x1 x3))))
* [exit]simplify:  Simplified to (log (* x3 (+ (+ x2 x4) (- x1 x3))))
* * * * [misc]progress:  [ 5 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (log (exp (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (exp (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (75 enodes)
* * [misc]simplify:  iters left: 2 (127 enodes)
* * [misc]simplify:  iters left: 1 (209 enodes)
* [exit]simplify:  Simplified to (pow (exp x3) (+ (- x2 x3) (+ x1 x4)))
* [exit]simplify:  Simplified to (pow (exp x3) (+ (- x2 x3) (+ x1 x4)))
* * * * [misc]progress:  [ 6 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (cbrt (* (* (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))) (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* (sqrt (+ (- (+ x1 x2) x3) x4)) (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))) (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* (sqrt (+ (- (+ x1 x2) x3) x4)) (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (28 enodes)
* * [misc]simplify:  iters left: 4 (67 enodes)
* * [misc]simplify:  iters left: 3 (138 enodes)
* * [misc]simplify:  iters left: 2 (249 enodes)
* [exit]simplify:  Simplified to (* (* (sqrt (+ (+ x1 x4) (- x2 x3))) (+ (+ x1 x4) (- x2 x3))) (* (* (+ (+ x1 x4) (- x2 x3)) (pow x3 3)) (sqrt (+ (+ x1 x4) (- x2 x3)))))
* [exit]simplify:  Simplified to (* (* (sqrt (+ (+ x1 x4) (- x2 x3))) (+ (+ x1 x4) (- x2 x3))) (* (* (+ (+ x1 x4) (- x2 x3)) (pow x3 3)) (sqrt (+ (+ x1 x4) (- x2 x3)))))
* * * * [misc]progress:  [ 7 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (cbrt (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (cbrt (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))))) (cbrt (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (cbrt (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (cbrt (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (70 enodes)
* * [misc]simplify:  iters left: 2 (96 enodes)
* * [misc]simplify:  iters left: 1 (115 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* x3 (+ (+ x2 x4) (- x1 x3)))) (cbrt (* x3 (+ (+ x2 x4) (- x1 x3)))))
* [exit]simplify:  Simplified to (* (cbrt (* x3 (+ (+ x2 x4) (- x1 x3)))) (cbrt (* x3 (+ (+ x2 x4) (- x1 x3)))))
* [enter]simplify:  Simplifying (cbrt (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (69 enodes)
* * [misc]simplify:  iters left: 2 (95 enodes)
* * [misc]simplify:  iters left: 1 (114 enodes)
* [exit]simplify:  Simplified to (cbrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* [exit]simplify:  Simplified to (cbrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* * * * [misc]progress:  [ 8 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (cbrt (* (* (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (106 enodes)
* * [misc]simplify:  iters left: 2 (307 enodes)
* [exit]simplify:  Simplified to (pow (* x3 (+ (+ x2 x4) (- x1 x3))) 3)
* [exit]simplify:  Simplified to (pow (* x3 (+ (+ x2 x4) (- x1 x3))) 3)
* * * * [misc]progress:  [ 9 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (sqrt (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (sqrt (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (sqrt (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (69 enodes)
* * [misc]simplify:  iters left: 2 (95 enodes)
* * [misc]simplify:  iters left: 1 (114 enodes)
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* [enter]simplify:  Simplifying (sqrt (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (69 enodes)
* * [misc]simplify:  iters left: 2 (95 enodes)
* * [misc]simplify:  iters left: 1 (114 enodes)
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- x1 x3) (+ x2 x4))))
* * * * [misc]progress:  [ 10 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (/ (* (* x3 (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))) (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))) (* (sqrt (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (sqrt (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))) (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (26 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (61 enodes)
* * [misc]simplify:  iters left: 2 (104 enodes)
* * [misc]simplify:  iters left: 1 (212 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ x1 (- x2 x3)) (+ x1 (- x2 x3))) (* x3 (+ x1 (- x2 x3)))) (* (* x4 x3) (* x4 x4)))
* [exit]simplify:  Simplified to (+ (* (* (+ x1 (- x2 x3)) (+ x1 (- x2 x3))) (* x3 (+ x1 (- x2 x3)))) (* (* x4 x3) (* x4 x4)))
* [enter]simplify:  Simplifying (* (sqrt (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (sqrt (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (42 enodes)
* * [misc]simplify:  iters left: 3 (61 enodes)
* * [misc]simplify:  iters left: 2 (87 enodes)
* * [misc]simplify:  iters left: 1 (175 enodes)
* [exit]simplify:  Simplified to (+ (* (- (- x4 x1) (- x2 x3)) x4) (* (+ x2 (- x1 x3)) (+ x2 (- x1 x3))))
* [exit]simplify:  Simplified to (+ (* (- (- x4 x1) (- x2 x3)) x4) (* (+ x2 (- x1 x3)) (+ x2 (- x1 x3))))
* * * * [misc]progress:  [ 11 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (/ (* (* x3 (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))) (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))) (* (sqrt (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (sqrt (- (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))) (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (31 enodes)
* * [misc]simplify:  iters left: 4 (53 enodes)
* * [misc]simplify:  iters left: 3 (106 enodes)
* * [misc]simplify:  iters left: 2 (243 enodes)
* * [misc]simplify:  iters left: 1 (463 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (pow x4 3) (pow (+ x2 (- x1 x3)) 3))) (* (sqrt (* (+ (+ x4 x2) (- x1 x3)) (- (- x2 x4) (- x3 x1)))) x3))
* [exit]simplify:  Simplified to (* (sqrt (+ (pow x4 3) (pow (+ x2 (- x1 x3)) 3))) (* (sqrt (* (+ (+ x4 x2) (- x1 x3)) (- (- x2 x4) (- x3 x1)))) x3))
* [enter]simplify:  Simplifying (* (sqrt (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))) (sqrt (- (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (53 enodes)
* * [misc]simplify:  iters left: 3 (79 enodes)
* * [misc]simplify:  iters left: 2 (113 enodes)
* * [misc]simplify:  iters left: 1 (215 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (* (- (- x4 x2) (- x1 x3)) x4) (* (- x2 (- x3 x1)) (- x2 (- x3 x1))))) (sqrt (+ (- x1 x4) (- x2 x3))))
* [exit]simplify:  Simplified to (* (sqrt (+ (* (- (- x4 x2) (- x1 x3)) x4) (* (- x2 (- x3 x1)) (- x2 (- x3 x1))))) (sqrt (+ (- x1 x4) (- x2 x3))))
* * * * [misc]progress:  [ 12 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (/ (* (* x3 (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))) (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))) (* (sqrt (- (- (+ x1 x2) x3) x4)) (sqrt (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))) (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (31 enodes)
* * [misc]simplify:  iters left: 4 (53 enodes)
* * [misc]simplify:  iters left: 3 (106 enodes)
* * [misc]simplify:  iters left: 2 (252 enodes)
* * [misc]simplify:  iters left: 1 (478 enodes)
* [exit]simplify:  Simplified to (* (* (sqrt (* (- (+ x2 x4) (- x3 x1)) (+ (- x1 x3) (- x2 x4)))) x3) (sqrt (+ (pow x4 3) (pow (- x1 (- x3 x2)) 3))))
* [exit]simplify:  Simplified to (* (* (sqrt (* (- (+ x2 x4) (- x3 x1)) (+ (- x1 x3) (- x2 x4)))) x3) (sqrt (+ (pow x4 3) (pow (- x1 (- x3 x2)) 3))))
* [enter]simplify:  Simplifying (* (sqrt (- (- (+ x1 x2) x3) x4)) (sqrt (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (53 enodes)
* * [misc]simplify:  iters left: 3 (79 enodes)
* * [misc]simplify:  iters left: 2 (113 enodes)
* * [misc]simplify:  iters left: 1 (215 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (* (- (- x4 x2) (- x1 x3)) x4) (* (- x2 (- x3 x1)) (- x2 (- x3 x1))))) (sqrt (+ (- x1 x4) (- x2 x3))))
* [exit]simplify:  Simplified to (* (sqrt (+ (* (- (- x4 x2) (- x1 x3)) x4) (* (- x2 (- x3 x1)) (- x2 (- x3 x1))))) (sqrt (+ (- x1 x4) (- x2 x3))))
* * * * [misc]progress:  [ 13 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (/ (* (* x3 (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))) (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))) (* (sqrt (- (- (+ x1 x2) x3) x4)) (sqrt (- (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))) (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (38 enodes)
* * [misc]simplify:  iters left: 3 (78 enodes)
* * [misc]simplify:  iters left: 2 (233 enodes)
* [exit]simplify:  Simplified to (* x3 (* (- (- x2 x4) (- x3 x1)) (+ (+ x4 x1) (- x2 x3))))
* [exit]simplify:  Simplified to (* x3 (* (- (- x2 x4) (- x3 x1)) (+ (+ x4 x1) (- x2 x3))))
* [enter]simplify:  Simplifying (* (sqrt (- (- (+ x1 x2) x3) x4)) (sqrt (- (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (23 enodes)
* * [misc]simplify:  iters left: 3 (34 enodes)
* * [misc]simplify:  iters left: 2 (43 enodes)
* * [misc]simplify:  iters left: 1 (61 enodes)
* [exit]simplify:  Simplified to (+ (- x1 x4) (- x2 x3))
* [exit]simplify:  Simplified to (+ (- x1 x4) (- x2 x3))
* * * * [misc]progress:  [ 14 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* 1 (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 15 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (* (cbrt (sqrt (+ (- (+ x1 x2) x3) x4))) (cbrt (sqrt (+ (- (+ x1 x2) x3) x4))))) (cbrt (sqrt (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (* (cbrt (sqrt (+ (- (+ x1 x2) x3) x4))) (cbrt (sqrt (+ (- (+ x1 x2) x3) x4)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (36 enodes)
* * [misc]simplify:  iters left: 3 (60 enodes)
* * [misc]simplify:  iters left: 2 (76 enodes)
* * [misc]simplify:  iters left: 1 (83 enodes)
* [exit]simplify:  Simplified to (* (* (cbrt (sqrt (+ (+ x1 x4) (- x2 x3)))) (sqrt (+ (+ x1 x4) (- x2 x3)))) (* (cbrt (sqrt (+ (+ x1 x4) (- x2 x3)))) x3))
* [exit]simplify:  Simplified to (* (* (cbrt (sqrt (+ (+ x1 x4) (- x2 x3)))) (sqrt (+ (+ x1 x4) (- x2 x3)))) (* (cbrt (sqrt (+ (+ x1 x4) (- x2 x3)))) x3))
* * * * [misc]progress:  [ 16 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (* (cbrt (+ (- (+ x1 x2) x3) x4)) (cbrt (+ (- (+ x1 x2) x3) x4))))) (sqrt (cbrt (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (* (cbrt (+ (- (+ x1 x2) x3) x4)) (cbrt (+ (- (+ x1 x2) x3) x4)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (50 enodes)
* * [misc]simplify:  iters left: 2 (58 enodes)
* * [misc]simplify:  iters left: 1 (65 enodes)
* [exit]simplify:  Simplified to (* (* (sqrt (+ (+ x1 x4) (- x2 x3))) x3) (fabs (cbrt (+ (+ x1 x4) (- x2 x3)))))
* [exit]simplify:  Simplified to (* (* (sqrt (+ (+ x1 x4) (- x2 x3))) x3) (fabs (cbrt (+ (+ x1 x4) (- x2 x3)))))
* * * * [misc]progress:  [ 17 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (sqrt (+ (- (+ x1 x2) x3) x4)))) (sqrt (sqrt (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (30 enodes)
* * [misc]simplify:  iters left: 3 (47 enodes)
* * [misc]simplify:  iters left: 2 (55 enodes)
* * [misc]simplify:  iters left: 1 (63 enodes)
* [exit]simplify:  Simplified to (* (* (sqrt (+ (+ x2 x4) (- x1 x3))) x3) (sqrt (sqrt (+ (+ x2 x4) (- x1 x3)))))
* [exit]simplify:  Simplified to (* (* (sqrt (+ (+ x2 x4) (- x1 x3))) x3) (sqrt (sqrt (+ (+ x2 x4) (- x1 x3)))))
* * * * [misc]progress:  [ 18 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt 1)) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt 1))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (50 enodes)
* * [misc]simplify:  iters left: 2 (58 enodes)
* * [misc]simplify:  iters left: 1 (65 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (+ x1 x4) (- x2 x3))) (* x3 (sqrt 1)))
* [exit]simplify:  Simplified to (* (sqrt (+ (+ x1 x4) (- x2 x3))) (* x3 (sqrt 1)))
* * * * [misc]progress:  [ 19 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (sqrt (+ (- (+ x1 x2) x3) x4)))) (sqrt (sqrt (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (30 enodes)
* * [misc]simplify:  iters left: 3 (47 enodes)
* * [misc]simplify:  iters left: 2 (55 enodes)
* * [misc]simplify:  iters left: 1 (63 enodes)
* [exit]simplify:  Simplified to (* (* (sqrt (+ (+ x2 x4) (- x1 x3))) x3) (sqrt (sqrt (+ (+ x2 x4) (- x1 x3)))))
* [exit]simplify:  Simplified to (* (* (sqrt (+ (+ x2 x4) (- x1 x3))) x3) (sqrt (sqrt (+ (+ x2 x4) (- x1 x3)))))
* * * * [misc]progress:  [ 20 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) 1) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) 1)
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (30 enodes)
* * [misc]simplify:  iters left: 3 (44 enodes)
* * [misc]simplify:  iters left: 2 (52 enodes)
* * [misc]simplify:  iters left: 1 (63 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (- x2 x3) (+ x1 x4))) x3)
* [exit]simplify:  Simplified to (* (sqrt (+ (- x2 x3) (+ x1 x4))) x3)
* * * * [misc]progress:  [ 21 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (* (sqrt (+ (- (+ x1 x2) x3) x4)) (sqrt (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (sqrt (+ (- (+ x1 x2) x3) x4)) (sqrt (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (23 enodes)
* * [misc]simplify:  iters left: 3 (36 enodes)
* * [misc]simplify:  iters left: 2 (42 enodes)
* * [misc]simplify:  iters left: 1 (49 enodes)
* [exit]simplify:  Simplified to (- (+ x2 x1) (- x3 x4))
* [exit]simplify:  Simplified to (- (+ x2 x1) (- x3 x4))
* * * * [misc]progress:  [ 22 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (/ (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))) (sqrt (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (31 enodes)
* * [misc]simplify:  iters left: 4 (50 enodes)
* * [misc]simplify:  iters left: 3 (85 enodes)
* * [misc]simplify:  iters left: 2 (136 enodes)
* * [misc]simplify:  iters left: 1 (212 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (pow x4 3) (pow (+ (- x2 x3) x1) 3))) (* (sqrt (+ (+ x2 x4) (- x1 x3))) x3))
* [exit]simplify:  Simplified to (* (sqrt (+ (pow x4 3) (pow (+ (- x2 x3) x1) 3))) (* (sqrt (+ (+ x2 x4) (- x1 x3))) x3))
* * * * [misc]progress:  [ 23 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (/ (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))) (sqrt (- (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (46 enodes)
* * [misc]simplify:  iters left: 3 (115 enodes)
* * [misc]simplify:  iters left: 2 (324 enodes)
* [exit]simplify:  Simplified to (* (* (sqrt (+ (+ x1 x4) (- x2 x3))) x3) (sqrt (* (- (- x1 x4) (- x3 x2)) (+ (+ x1 x4) (- x2 x3)))))
* [exit]simplify:  Simplified to (* (* (sqrt (+ (+ x1 x4) (- x2 x3))) x3) (sqrt (* (- (- x1 x4) (- x3 x2)) (+ (+ x1 x4) (- x2 x3)))))
* * * * [misc]progress:  [ 24 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (/ (* (* x3 (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))) (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4)))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))) (sqrt (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (31 enodes)
* * [misc]simplify:  iters left: 4 (50 enodes)
* * [misc]simplify:  iters left: 3 (85 enodes)
* * [misc]simplify:  iters left: 2 (136 enodes)
* * [misc]simplify:  iters left: 1 (209 enodes)
* [exit]simplify:  Simplified to (* (* (sqrt (+ (+ x4 x2) (- x1 x3))) x3) (sqrt (+ (pow x4 3) (pow (+ (- x2 x3) x1) 3))))
* [exit]simplify:  Simplified to (* (* (sqrt (+ (+ x4 x2) (- x1 x3))) x3) (sqrt (+ (pow x4 3) (pow (+ (- x2 x3) x1) 3))))
* * * * [misc]progress:  [ 25 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (/ (* (* x3 (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))) (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (- (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x3 (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))) (sqrt (+ (- (+ x1 x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (46 enodes)
* * [misc]simplify:  iters left: 3 (115 enodes)
* * [misc]simplify:  iters left: 2 (324 enodes)
* [exit]simplify:  Simplified to (* (sqrt (* (- (- x2 x4) (- x3 x1)) (+ (+ x4 x1) (- x2 x3)))) (* x3 (sqrt (+ (+ x4 x1) (- x2 x3)))))
* [exit]simplify:  Simplified to (* (sqrt (* (- (- x2 x4) (- x3 x1)) (+ (+ x4 x1) (- x2 x3)))) (* x3 (sqrt (+ (+ x4 x1) (- x2 x3)))))
* * * * [misc]progress:  [ 26 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (sqrt (+ (- (+ x1 x2) x3) x4)) (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 27 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (pow (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) 1) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 28 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (exp (log (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (log (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (41 enodes)
* * [misc]simplify:  iters left: 2 (47 enodes)
* * [misc]simplify:  iters left: 1 (54 enodes)
* [exit]simplify:  Simplified to (log (* (sqrt (- (+ x2 x4) (- x3 x1))) x3))
* [exit]simplify:  Simplified to (log (* (sqrt (- (+ x2 x4) (- x3 x1))) x3))
* * * * [misc]progress:  [ 29 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (log (exp (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (exp (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (26 enodes)
* * [misc]simplify:  iters left: 3 (39 enodes)
* * [misc]simplify:  iters left: 2 (45 enodes)
* * [misc]simplify:  iters left: 1 (52 enodes)
* [exit]simplify:  Simplified to (pow (exp x3) (sqrt (+ (+ x1 x4) (- x2 x3))))
* [exit]simplify:  Simplified to (pow (exp x3) (sqrt (+ (+ x1 x4) (- x2 x3))))
* * * * [misc]progress:  [ 30 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* (cbrt (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))) (cbrt (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))) (cbrt (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (cbrt (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))) (cbrt (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (25 enodes)
* * [misc]simplify:  iters left: 3 (38 enodes)
* * [misc]simplify:  iters left: 2 (44 enodes)
* * [misc]simplify:  iters left: 1 (51 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* (sqrt (+ (- x2 x3) (+ x1 x4))) x3)) (cbrt (* (sqrt (+ (- x2 x3) (+ x1 x4))) x3)))
* [exit]simplify:  Simplified to (* (cbrt (* (sqrt (+ (- x2 x3) (+ x1 x4))) x3)) (cbrt (* (sqrt (+ (- x2 x3) (+ x1 x4))) x3)))
* [enter]simplify:  Simplifying (cbrt (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (24 enodes)
* * [misc]simplify:  iters left: 3 (37 enodes)
* * [misc]simplify:  iters left: 2 (43 enodes)
* * [misc]simplify:  iters left: 1 (51 enodes)
* [exit]simplify:  Simplified to (cbrt (* (sqrt (- (+ x1 x2) (- x3 x4))) x3))
* [exit]simplify:  Simplified to (cbrt (* (sqrt (- (+ x1 x2) (- x3 x4))) x3))
* * * * [misc]progress:  [ 31 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (cbrt (* (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))) (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))) (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (37 enodes)
* * [misc]simplify:  iters left: 3 (62 enodes)
* * [misc]simplify:  iters left: 2 (85 enodes)
* * [misc]simplify:  iters left: 1 (105 enodes)
* [exit]simplify:  Simplified to (* (* (sqrt (+ (- x2 x3) (+ x1 x4))) x3) (* (+ (- x2 x3) (+ x1 x4)) (* x3 x3)))
* [exit]simplify:  Simplified to (* (* (sqrt (+ (- x2 x3) (+ x1 x4))) x3) (* (+ (- x2 x3) (+ x1 x4)) (* x3 x3)))
* * * * [misc]progress:  [ 32 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (sqrt (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))) (sqrt (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (sqrt (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (24 enodes)
* * [misc]simplify:  iters left: 3 (37 enodes)
* * [misc]simplify:  iters left: 2 (43 enodes)
* * [misc]simplify:  iters left: 1 (51 enodes)
* [exit]simplify:  Simplified to (sqrt (* (sqrt (- (+ x1 x2) (- x3 x4))) x3))
* [exit]simplify:  Simplified to (sqrt (* (sqrt (- (+ x1 x2) (- x3 x4))) x3))
* [enter]simplify:  Simplifying (sqrt (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (24 enodes)
* * [misc]simplify:  iters left: 3 (37 enodes)
* * [misc]simplify:  iters left: 2 (43 enodes)
* * [misc]simplify:  iters left: 1 (51 enodes)
* [exit]simplify:  Simplified to (sqrt (* (sqrt (- (+ x1 x2) (- x3 x4))) x3))
* [exit]simplify:  Simplified to (sqrt (* (sqrt (- (+ x1 x2) (- x3 x4))) x3))
* * * * [misc]progress:  [ 33 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* 1 (* x3 (sqrt (+ (- (+ x1 x2) x3) x4)))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 34 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x3 (* (cbrt (sqrt (+ (- (+ x1 x2) x3) x4))) (cbrt (sqrt (+ (- (+ x1 x2) x3) x4))))) (cbrt (sqrt (+ (- (+ x1 x2) x3) x4)))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (* (cbrt (sqrt (+ (- (+ x1 x2) x3) x4))) (cbrt (sqrt (+ (- (+ x1 x2) x3) x4)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (29 enodes)
* * [misc]simplify:  iters left: 3 (42 enodes)
* * [misc]simplify:  iters left: 2 (48 enodes)
* * [misc]simplify:  iters left: 1 (56 enodes)
* [exit]simplify:  Simplified to (* (* (cbrt (sqrt (+ (- x2 x3) (+ x1 x4)))) (cbrt (sqrt (+ (- x2 x3) (+ x1 x4))))) x3)
* [exit]simplify:  Simplified to (* (* (cbrt (sqrt (+ (- x2 x3) (+ x1 x4)))) (cbrt (sqrt (+ (- x2 x3) (+ x1 x4))))) x3)
* * * * [misc]progress:  [ 35 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x3 (sqrt (* (cbrt (+ (- (+ x1 x2) x3) x4)) (cbrt (+ (- (+ x1 x2) x3) x4))))) (sqrt (cbrt (+ (- (+ x1 x2) x3) x4)))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (sqrt (* (cbrt (+ (- (+ x1 x2) x3) x4)) (cbrt (+ (- (+ x1 x2) x3) x4)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (26 enodes)
* * [misc]simplify:  iters left: 3 (39 enodes)
* * [misc]simplify:  iters left: 2 (45 enodes)
* * [misc]simplify:  iters left: 1 (52 enodes)
* [exit]simplify:  Simplified to (* (fabs (cbrt (+ (+ x1 x4) (- x2 x3)))) x3)
* [exit]simplify:  Simplified to (* (fabs (cbrt (+ (+ x1 x4) (- x2 x3)))) x3)
* * * * [misc]progress:  [ 36 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x3 (sqrt (sqrt (+ (- (+ x1 x2) x3) x4)))) (sqrt (sqrt (+ (- (+ x1 x2) x3) x4)))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (sqrt (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (24 enodes)
* * [misc]simplify:  iters left: 3 (37 enodes)
* * [misc]simplify:  iters left: 2 (43 enodes)
* * [misc]simplify:  iters left: 1 (51 enodes)
* [exit]simplify:  Simplified to (* x3 (sqrt (sqrt (- (+ x1 x2) (- x3 x4)))))
* [exit]simplify:  Simplified to (* x3 (sqrt (sqrt (- (+ x1 x2) (- x3 x4)))))
* * * * [misc]progress:  [ 37 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x3 (sqrt 1)) (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (sqrt 1))
* * [misc]simplify:  iters left: 3 (4 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* [exit]simplify:  Simplified to (* x3 (sqrt 1))
* [exit]simplify:  Simplified to (* x3 (sqrt 1))
* * * * [misc]progress:  [ 38 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x3 (sqrt (sqrt (+ (- (+ x1 x2) x3) x4)))) (sqrt (sqrt (+ (- (+ x1 x2) x3) x4)))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (sqrt (sqrt (+ (- (+ x1 x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (24 enodes)
* * [misc]simplify:  iters left: 3 (37 enodes)
* * [misc]simplify:  iters left: 2 (43 enodes)
* * [misc]simplify:  iters left: 1 (51 enodes)
* [exit]simplify:  Simplified to (* x3 (sqrt (sqrt (- (+ x1 x2) (- x3 x4)))))
* [exit]simplify:  Simplified to (* x3 (sqrt (sqrt (- (+ x1 x2) (- x3 x4)))))
* * * * [misc]progress:  [ 39 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (* x3 1) (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 1)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to x3
* [exit]simplify:  Simplified to x3
* * * * [misc]progress:  [ 40 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (/ (* x3 (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3)))) (sqrt (+ (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (- (* x4 x4) (* (- (+ x1 x2) x3) x4))))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (sqrt (+ (pow (- (+ x1 x2) x3) 3) (pow x4 3))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (55 enodes)
* * [misc]simplify:  iters left: 2 (78 enodes)
* * [misc]simplify:  iters left: 1 (117 enodes)
* [exit]simplify:  Simplified to (* x3 (sqrt (+ (pow x4 3) (pow (+ x1 (- x2 x3)) 3))))
* [exit]simplify:  Simplified to (* x3 (sqrt (+ (pow x4 3) (pow (+ x1 (- x2 x3)) 3))))
* * * * [misc]progress:  [ 41 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (/ (* x3 (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4)))) (sqrt (- (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 (sqrt (- (* (- (+ x1 x2) x3) (- (+ x1 x2) x3)) (* x4 x4))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (34 enodes)
* * [misc]simplify:  iters left: 3 (78 enodes)
* * [misc]simplify:  iters left: 2 (194 enodes)
* * [misc]simplify:  iters left: 1 (381 enodes)
* [exit]simplify:  Simplified to (* (sqrt (* (- (+ x1 x2) (- x3 x4)) (- (- x2 x3) (- x4 x1)))) x3)
* [exit]simplify:  Simplified to (* (sqrt (* (- (+ x1 x2) (- x3 x4)) (- (- x2 x3) (- x4 x1)))) x3)
* * * * [misc]progress:  [ 42 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* (sqrt (+ (- (+ x1 x2) x3) x4)) x3) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 43 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 1) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (26 enodes)
* * [misc]simplify:  iters left: 3 (52 enodes)
* * [misc]simplify:  iters left: 2 (96 enodes)
* * [misc]simplify:  iters left: 1 (149 enodes)
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1))
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1))
* * * * [misc]progress:  [ 44 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (pow (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) 1) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 45 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (exp (+ (log (* x1 x4)) (log (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (+ (log (* x1 x4)) (log (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (30 enodes)
* * [misc]simplify:  iters left: 3 (44 enodes)
* * [misc]simplify:  iters left: 2 (54 enodes)
* * [misc]simplify:  iters left: 1 (67 enodes)
* [exit]simplify:  Simplified to (+ (log (+ (+ x2 x3) (- (- x1) x4))) (log (* x4 x1)))
* [exit]simplify:  Simplified to (+ (log (+ (+ x2 x3) (- (- x1) x4))) (log (* x4 x1)))
* * * * [misc]progress:  [ 46 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (exp (log (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (log (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (68 enodes)
* * [misc]simplify:  iters left: 2 (118 enodes)
* * [misc]simplify:  iters left: 1 (171 enodes)
* [exit]simplify:  Simplified to (log (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [exit]simplify:  Simplified to (log (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * * * [misc]progress:  [ 47 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (log (exp (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (exp (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (59 enodes)
* * [misc]simplify:  iters left: 2 (103 enodes)
* * [misc]simplify:  iters left: 1 (156 enodes)
* [exit]simplify:  Simplified to (pow (exp (* x4 x1)) (+ x2 (+ (- x3 x4) (- x1))))
* [exit]simplify:  Simplified to (pow (exp (* x4 x1)) (+ x2 (+ (- x3 x4) (- x1))))
* * * * [misc]progress:  [ 48 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (cbrt (* (* (* (* x1 x4) (* x1 x4)) (* x1 x4)) (* (* (- (+ (+ (- x1) x2) x3) x4) (- (+ (+ (- x1) x2) x3) x4)) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* (* x1 x4) (* x1 x4)) (* x1 x4)) (* (* (- (+ (+ (- x1) x2) x3) x4) (- (+ (+ (- x1) x2) x3) x4)) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (48 enodes)
* * [misc]simplify:  iters left: 3 (127 enodes)
* * [misc]simplify:  iters left: 2 (456 enodes)
* [exit]simplify:  Simplified to (* (* (+ (+ (- x1) x3) (- x2 x4)) (+ (+ (- x1) x3) (- x2 x4))) (* (pow (* x4 x1) 3) (+ (- x2 (- x4 x3)) (- x1))))
* [exit]simplify:  Simplified to (* (* (+ (+ (- x1) x3) (- x2 x4)) (+ (+ (- x1) x3) (- x2 x4))) (* (pow (* x4 x1) 3) (+ (- x2 (- x4 x3)) (- x1))))
* * * * [misc]progress:  [ 49 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (54 enodes)
* * [misc]simplify:  iters left: 2 (98 enodes)
* * [misc]simplify:  iters left: 1 (151 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1))) (cbrt (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1))))
* [exit]simplify:  Simplified to (* (cbrt (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1))) (cbrt (* (+ (+ (- x3 x4) (- x1)) x2) (* x4 x1))))
* [enter]simplify:  Simplifying (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (53 enodes)
* * [misc]simplify:  iters left: 2 (97 enodes)
* * [misc]simplify:  iters left: 1 (150 enodes)
* [exit]simplify:  Simplified to (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [exit]simplify:  Simplified to (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * * * [misc]progress:  [ 50 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (cbrt (* (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (104 enodes)
* * [misc]simplify:  iters left: 2 (356 enodes)
* [exit]simplify:  Simplified to (pow (* (+ x3 (+ (- x1) (- x2 x4))) (* x4 x1)) 3)
* [exit]simplify:  Simplified to (pow (* (+ x3 (+ (- x1) (- x2 x4))) (* x4 x1)) 3)
* * * * [misc]progress:  [ 51 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (sqrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (sqrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (sqrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (53 enodes)
* * [misc]simplify:  iters left: 2 (97 enodes)
* * [misc]simplify:  iters left: 1 (150 enodes)
* [exit]simplify:  Simplified to (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [exit]simplify:  Simplified to (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [enter]simplify:  Simplifying (sqrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (53 enodes)
* * [misc]simplify:  iters left: 2 (97 enodes)
* * [misc]simplify:  iters left: 1 (150 enodes)
* [exit]simplify:  Simplified to (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* [exit]simplify:  Simplified to (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * * * [misc]progress:  [ 52 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* 1 (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 53 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (* x1 x4) (+ (+ (- x1) x2) x3)) (* (* x1 x4) (- x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (+ (+ (- x1) x2) x3))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (61 enodes)
* * [misc]simplify:  iters left: 3 (124 enodes)
* * [misc]simplify:  iters left: 2 (168 enodes)
* * [misc]simplify:  iters left: 1 (190 enodes)
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- x1)) (* x4 x1))
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- x1)) (* x4 x1))
* [enter]simplify:  Simplifying (* (* x1 x4) (- x4))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* * [misc]simplify:  iters left: 1 (26 enodes)
* [exit]simplify:  Simplified to (* (- x1) (* x4 x4))
* [exit]simplify:  Simplified to (* (- x1) (* x4 x4))
* * * * [misc]progress:  [ 54 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (* x1 x4) (+ (- x1) x2)) (* (* x1 x4) (- x3 x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (+ (- x1) x2))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (46 enodes)
* * [misc]simplify:  iters left: 3 (62 enodes)
* * [misc]simplify:  iters left: 2 (68 enodes)
* * [misc]simplify:  iters left: 1 (70 enodes)
* [exit]simplify:  Simplified to (* (* x4 x1) (+ (- x1) x2))
* [exit]simplify:  Simplified to (* (* x4 x1) (+ (- x1) x2))
* [enter]simplify:  Simplifying (* (* x1 x4) (- x3 x4))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (* (* x4 x1) (- x3 x4))
* [exit]simplify:  Simplified to (* (* x4 x1) (- x3 x4))
* * * * [misc]progress:  [ 55 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (+ (+ (- x1) x2) x3) (* x1 x4)) (* (- x4) (* x1 x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (+ (+ (- x1) x2) x3) (* x1 x4))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (21 enodes)
* * [misc]simplify:  iters left: 3 (45 enodes)
* * [misc]simplify:  iters left: 2 (91 enodes)
* * [misc]simplify:  iters left: 1 (110 enodes)
* [exit]simplify:  Simplified to (* (+ (- x1) (+ x3 x2)) (* x1 x4))
* [exit]simplify:  Simplified to (* (+ (- x1) (+ x3 x2)) (* x1 x4))
* [enter]simplify:  Simplifying (* (- x4) (* x1 x4))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (22 enodes)
* [exit]simplify:  Simplified to (* (* x4 x4) (- x1))
* [exit]simplify:  Simplified to (* (* x4 x4) (- x1))
* * * * [misc]progress:  [ 56 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (+ (* (+ (- x1) x2) (* x1 x4)) (* (- x3 x4) (* x1 x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (+ (- x1) x2) (* x1 x4))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (30 enodes)
* * [misc]simplify:  iters left: 2 (54 enodes)
* * [misc]simplify:  iters left: 1 (60 enodes)
* [exit]simplify:  Simplified to (* (+ (- x1) x2) (* x1 x4))
* [exit]simplify:  Simplified to (* (+ (- x1) x2) (* x1 x4))
* [enter]simplify:  Simplifying (* (- x3 x4) (* x1 x4))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (* (- x3 x4) (* x1 x4))
* [exit]simplify:  Simplified to (* (- x3 x4) (* x1 x4))
* * * * [misc]progress:  [ 57 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (* x1 x4) (* (cbrt (- (+ (+ (- x1) x2) x3) x4)) (cbrt (- (+ (+ (- x1) x2) x3) x4)))) (cbrt (- (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (* (cbrt (- (+ (+ (- x1) x2) x3) x4)) (cbrt (- (+ (+ (- x1) x2) x3) x4))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (54 enodes)
* * [misc]simplify:  iters left: 2 (71 enodes)
* * [misc]simplify:  iters left: 1 (84 enodes)
* [exit]simplify:  Simplified to (* (* (cbrt (+ x2 (+ (- x3 x4) (- x1)))) (* x4 x1)) (cbrt (+ x2 (+ (- x3 x4) (- x1)))))
* [exit]simplify:  Simplified to (* (* (cbrt (+ x2 (+ (- x3 x4) (- x1)))) (* x4 x1)) (cbrt (+ x2 (+ (- x3 x4) (- x1)))))
* * * * [misc]progress:  [ 58 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (* x1 x4) (sqrt (- (+ (+ (- x1) x2) x3) x4))) (sqrt (- (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (sqrt (- (+ (+ (- x1) x2) x3) x4)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (41 enodes)
* * [misc]simplify:  iters left: 2 (50 enodes)
* * [misc]simplify:  iters left: 1 (63 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (+ (- x1) x2) (- x3 x4))) (* x4 x1))
* [exit]simplify:  Simplified to (* (sqrt (+ (+ (- x1) x2) (- x3 x4))) (* x4 x1))
* * * * [misc]progress:  [ 59 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (* x1 x4) 1) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) 1)
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* [exit]simplify:  Simplified to (* x1 x4)
* [exit]simplify:  Simplified to (* x1 x4)
* * * * [misc]progress:  [ 60 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* x1 (* x4 (- (+ (+ (- x1) x2) x3) x4))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x4 (- (+ (+ (- x1) x2) x3) x4))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* * [misc]simplify:  iters left: 4 (20 enodes)
* * [misc]simplify:  iters left: 3 (42 enodes)
* * [misc]simplify:  iters left: 2 (69 enodes)
* * [misc]simplify:  iters left: 1 (95 enodes)
* [exit]simplify:  Simplified to (* (+ x3 (+ (- x1) (- x2 x4))) x4)
* [exit]simplify:  Simplified to (* (+ x3 (+ (- x1) (- x2 x4))) x4)
* * * * [misc]progress:  [ 61 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (/ (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3))) (+ (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (+ (* x4 x4) (* (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (- (pow (+ (+ (- x1) x2) x3) 3) (pow x4 3)))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (115 enodes)
* * [misc]simplify:  iters left: 2 (263 enodes)
* * [misc]simplify:  iters left: 1 (467 enodes)
* [exit]simplify:  Simplified to (* (- (pow (+ (- x1) (+ x2 x3)) 3) (pow x4 3)) (* x4 x1))
* [exit]simplify:  Simplified to (* (- (pow (+ (- x1) (+ x2 x3)) 3) (pow x4 3)) (* x4 x1))
* * * * [misc]progress:  [ 62 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (/ (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4))) (+ (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* x1 x4) (- (* (+ (+ (- x1) x2) x3) (+ (+ (- x1) x2) x3)) (* x4 x4)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (73 enodes)
* * [misc]simplify:  iters left: 3 (225 enodes)
* [exit]simplify:  Simplified to (* (* x4 x1) (- (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3))) (* x4 x4)))
* [exit]simplify:  Simplified to (* (* x4 x1) (- (* (+ (- x1) (+ x2 x3)) (+ (- x1) (+ x2 x3))) (* x4 x4)))
* * * * [misc]progress:  [ 63 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (- (+ (+ (- x1) x2) x3) x4) (* x1 x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 64 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (pow (* (* x2 x3) x4) 1)) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 65 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (exp (log (* (* x2 x3) x4)))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (log (* (* x2 x3) x4))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (12 enodes)
* * [misc]simplify:  iters left: 3 (20 enodes)
* * [misc]simplify:  iters left: 2 (31 enodes)
* * [misc]simplify:  iters left: 1 (39 enodes)
* [exit]simplify:  Simplified to (log (* (* x4 x3) x2))
* [exit]simplify:  Simplified to (log (* (* x4 x3) x2))
* * * * [misc]progress:  [ 66 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (log (exp (* (* x2 x3) x4)))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (exp (* (* x2 x3) x4))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* * [misc]simplify:  iters left: 2 (22 enodes)
* * [misc]simplify:  iters left: 1 (24 enodes)
* [exit]simplify:  Simplified to (exp (* x2 (* x4 x3)))
* [exit]simplify:  Simplified to (exp (* x2 (* x4 x3)))
* * * * [misc]progress:  [ 67 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* (cbrt (* (* x2 x3) x4)) (cbrt (* (* x2 x3) x4))) (cbrt (* (* x2 x3) x4)))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (cbrt (* (* x2 x3) x4)) (cbrt (* (* x2 x3) x4)))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (17 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* (* x4 x3) x2)) (cbrt (* (* x4 x3) x2)))
* [exit]simplify:  Simplified to (* (cbrt (* (* x4 x3) x2)) (cbrt (* (* x4 x3) x2)))
* [enter]simplify:  Simplifying (cbrt (* (* x2 x3) x4))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (cbrt (* x2 (* x4 x3)))
* [exit]simplify:  Simplified to (cbrt (* x2 (* x4 x3)))
* * * * [misc]progress:  [ 68 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (cbrt (* (* (* (* x2 x3) x4) (* (* x2 x3) x4)) (* (* x2 x3) x4)))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* (* (* (* x2 x3) x4) (* (* x2 x3) x4)) (* (* x2 x3) x4))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (65 enodes)
* * [misc]simplify:  iters left: 2 (147 enodes)
* * [misc]simplify:  iters left: 1 (252 enodes)
* [exit]simplify:  Simplified to (pow (* (* x4 x2) x3) 3)
* [exit]simplify:  Simplified to (pow (* (* x4 x2) x3) 3)
* * * * [misc]progress:  [ 69 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (sqrt (* (* x2 x3) x4)) (sqrt (* (* x2 x3) x4)))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (sqrt (* (* x2 x3) x4))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (* x2 (* x4 x3)))
* [exit]simplify:  Simplified to (sqrt (* x2 (* x4 x3)))
* [enter]simplify:  Simplifying (sqrt (* (* x2 x3) x4))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (* x2 (* x4 x3)))
* [exit]simplify:  Simplified to (sqrt (* x2 (* x4 x3)))
* * * * [misc]progress:  [ 70 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* 1 (* (* x2 x3) x4))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 71 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (* x3 x4)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (* x4 x3)
* [exit]simplify:  Simplified to (* x4 x3)
* * * * [misc]progress:  [ 72 / 84 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* x4 (* x2 x3))) (* x1 x3)) (* x1 x2)) x4))>
* * * * [misc]progress:  [ 73 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (+ (* x1 x3) (* x2 x3)) (pow x3 2))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (+ (* x1 x3) (* x2 x3)) (pow x3 2))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (68 enodes)
* * [misc]simplify:  iters left: 4 (114 enodes)
* * [misc]simplify:  iters left: 3 (199 enodes)
* * [misc]simplify:  iters left: 2 (336 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (+ x3 (+ (- x1) (- x2 x4))) (* x4 x1)) (+ (* x1 x3) (* x2 (- (+ x4 x1) (- x2 x3))))) (- (- (* x3 (- (- x2 x3) (* x4 x2))) (* (+ x2 x3) x1)) x4))
* * * * [misc]progress:  [ 74 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (+ (* +nan.0 (/ (* x2 x4) x3)) (- (+ (* +nan.0 (/ (* x1 x4) x3)) (- (* +nan.0 (/ (pow x4 2) x3)))))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (+ (* +nan.0 (/ (* x2 x4) x3)) (- (+ (* +nan.0 (/ (* x1 x4) x3)) (- (* +nan.0 (/ (pow x4 2) x3)))))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * * * [misc]progress:  [ 75 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (+ (* +nan.0 (/ (* x2 x4) x3)) (- (+ (* +nan.0 (/ (* x1 x4) x3)) (- (* +nan.0 (/ (pow x4 2) x3)))))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (- (+ (* +nan.0 (/ (* x2 x4) x3)) (- (+ (* +nan.0 (/ (* x1 x4) x3)) (- (* +nan.0 (/ (pow x4 2) x3)))))))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * * * [misc]progress:  [ 76 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (- (+ (* +nan.0 (* x1 x3)) (- (+ (* +nan.0 (pow x3 2)) (- (* +nan.0 (* x2 x3))))))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (- (+ (* +nan.0 (* x1 x3)) (- (+ (* +nan.0 (pow x3 2)) (- (* +nan.0 (* x2 x3))))))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * * * [misc]progress:  [ 77 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (- (+ (* +nan.0 x1) (- (+ (* +nan.0 x2) (- (* +nan.0 x4)))))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (- (+ (* +nan.0 x1) (- (+ (* +nan.0 x2) (- (* +nan.0 x4)))))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * * * [misc]progress:  [ 78 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (- (+ (* +nan.0 x1) (- (+ (* +nan.0 x2) (- (* +nan.0 x4)))))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (- (+ (* +nan.0 x1) (- (+ (* +nan.0 x2) (- (* +nan.0 x4)))))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * * * [misc]progress:  [ 79 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ 0 (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ 0 (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (57 enodes)
* * [misc]simplify:  iters left: 4 (97 enodes)
* * [misc]simplify:  iters left: 3 (171 enodes)
* * [misc]simplify:  iters left: 2 (242 enodes)
* * [misc]simplify:  iters left: 1 (350 enodes)
* [exit]simplify:  Simplified to (+ (* (- (+ (- x1 x3) (+ x4 x2)) (* x4 x2)) x3) (- (* (- (+ x1 x4) (- x2 x3)) x2) (+ x4 (* x1 (+ x2 x3)))))
* * * * [misc]progress:  [ 80 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (33 enodes)
* * [misc]simplify:  iters left: 5 (78 enodes)
* * [misc]simplify:  iters left: 4 (130 enodes)
* * [misc]simplify:  iters left: 3 (226 enodes)
* * [misc]simplify:  iters left: 2 (346 enodes)
* [exit]simplify:  Simplified to (- (- (+ (+ (* x3 (+ (- x2 x3) (+ x1 x4))) (* (* x1 x4) (- (+ x2 x3) x4))) (* x2 (- (+ (- x1 x2) (+ x4 x3)) (* x4 x3)))) (* x1 (+ x2 x3))) x4)
* * * * [misc]progress:  [ 81 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (- (+ (* x1 (* x2 x4)) (* x1 (* x4 x3))) (* x1 (pow x4 2))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (33 enodes)
* * [misc]simplify:  iters left: 5 (78 enodes)
* * [misc]simplify:  iters left: 4 (130 enodes)
* * [misc]simplify:  iters left: 3 (226 enodes)
* * [misc]simplify:  iters left: 2 (346 enodes)
* [exit]simplify:  Simplified to (- (- (+ (+ (* x3 (+ (- x2 x3) (+ x1 x4))) (* (* x1 x4) (- (+ x2 x3) x4))) (* x2 (- (+ (- x1 x2) (+ x4 x3)) (* x4 x3)))) (* x1 (+ x2 x3))) x4)
* * * * [misc]progress:  [ 82 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) 0) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) 0) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (66 enodes)
* * [misc]simplify:  iters left: 4 (110 enodes)
* * [misc]simplify:  iters left: 3 (206 enodes)
* * [misc]simplify:  iters left: 2 (294 enodes)
* * [misc]simplify:  iters left: 1 (396 enodes)
* [exit]simplify:  Simplified to (- (- (+ (+ (* (+ (- x2 x3) (+ x4 x1)) x3) (* x2 (- (+ x4 x1) (- x2 x3)))) (* (+ (+ x3 (- x1)) (- x2 x4)) (* x4 x1))) (* x1 x3)) (+ x4 (* x1 x2)))
* * * * [misc]progress:  [ 83 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* x2 (* x4 x3))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* x2 (* x4 x3))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (30 enodes)
* * [misc]simplify:  iters left: 5 (67 enodes)
* * [misc]simplify:  iters left: 4 (122 enodes)
* * [misc]simplify:  iters left: 3 (236 enodes)
* * [misc]simplify:  iters left: 2 (371 enodes)
* [exit]simplify:  Simplified to (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4))
* * * * [misc]progress:  [ 84 / 84 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* x2 (* x4 x3))) (* x1 x3)) (* x1 x2)) x4))>
* [enter]simplify:  Simplifying (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* (* x3 (sqrt (+ (- (+ x1 x2) x3) x4))) (sqrt (+ (- (+ x1 x2) x3) x4)))) (* x2 (* x4 x3))) (* x1 x3)) (* x1 x2)) x4)
* * [misc]simplify:  iters left: 6 (30 enodes)
* * [misc]simplify:  iters left: 5 (67 enodes)
* * [misc]simplify:  iters left: 4 (122 enodes)
* * [misc]simplify:  iters left: 3 (236 enodes)
* * [misc]simplify:  iters left: 2 (371 enodes)
* [exit]simplify:  Simplified to (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4))
* * * [misc]progress:  adding candidates to table
* * [misc]progress:  iteration 4 / 4
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 4 ] rewriting at (2 1 1 1)
* * * * [misc]progress:  [ 2 / 4 ] rewriting at (2 1 1)
* * * * [misc]progress:  [ 3 / 4 ] rewriting at (2 1 1 2)
* * * * [misc]progress:  [ 4 / 4 ] rewriting at (2 1)
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 4 ] generating series at (2 1 1 1)
* [misc]approximate:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in (x2 x1 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ x3 (- x4)) into (- x3 x4)
* [misc]backup-simplify:  Simplify (+ (- x1) (- x3 x4)) into (- x3 (+ x1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (- x3 (+ x1 x4))) into (- x3 (+ x1 x4))
* [misc]backup-simplify:  Simplify (* x4 x1) into (* x1 x4)
* [misc]backup-simplify:  Simplify (* (- x3 (+ x1 x4)) (* x1 x4)) into (* x1 (* x4 (- x3 (+ x1 x4))))
* [misc]taylor:  Taking taylor expansion of (* x1 (* x4 (- x3 (+ x1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 (- x3 (+ x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- x3 (+ x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 0 x4) into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ x3 (- x4)) into (- x3 x4)
* [misc]backup-simplify:  Simplify (* x4 (- x3 x4)) into (* (- x3 x4) x4)
* [misc]backup-simplify:  Simplify (* 0 (* (- x3 x4) x4)) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x1)) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ (* (- x3 (+ x1 x4)) 0) (* 1 (* x1 x4))) into (* x1 x4)
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ (* x4 -1) (* 0 (- x3 x4))) into (- x4)
* [misc]backup-simplify:  Simplify (+ (* 0 (- x4)) (* 1 (* (- x3 x4) x4))) into (- (* x4 x3) (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (* x4 x3) (pow x4 2)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x3
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (- (pow x4 2)) into (- (pow x4 2))
* [misc]backup-simplify:  Simplify (+ 0 (- (pow x4 2))) into (- (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x1))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* (- x3 (+ x1 x4)) 0) (+ (* 1 0) (* 0 (* x1 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]approximate:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in (x2 x1 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) (/ 1 x1)) into (/ 1 (* x1 x4))
* [misc]backup-simplify:  Simplify (* 1 (/ 1 (* x1 x4))) into (/ 1 (* x1 x4))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (* 0 (/ 1 x1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 x1)) into (- (/ 1 x1))
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) (- (/ 1 x4))) into (- (/ 1 x3) (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) into (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) into (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))) (/ 1 (* x1 x4)))) into (- (/ 1 (* x1 (* x4 x3))) (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (* x1 (* x4 x3))) (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x4 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* 0 (* x4 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x4 x3))) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 x4))) into (- (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (* 0 (/ 1 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))) 0) (* 0 (/ 1 (* x1 x4))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x4 2)) 0) into (/ 1 (pow x4 2))
* [misc]backup-simplify:  Simplify (- (/ 1 (pow x4 2))) into (- (/ 1 (pow x4 2)))
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x4 x3)) (- (/ 1 (pow x4 2)))) into (- (/ 1 (* x4 x3)) (/ 1 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (* x4 x3)) (/ 1 (pow x4 2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x3
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x3
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x1))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))) 0) (+ (* 0 0) (* 0 (/ 1 (* x1 x4)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (* x4 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x4 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x4 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x4)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 (pow x4 2))) into (- (/ 1 (pow x4 2)))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 (pow x4 2)))) into (- (/ 1 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (pow x4 2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (* -1 (* (/ 1 (/ 1 x4)) (* 1 (* (pow (/ 1 x1) -2) 1)))) (+ (* 1 (* (/ 1 (/ 1 x4)) (* (/ 1 (/ 1 x3)) (* (/ 1 (/ 1 x1)) 1)))) (* -1 (* (pow (/ 1 x4) -2) (* 1 (* (/ 1 (/ 1 x1)) 1)))))) into (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* (pow x1 2) x4)))
* [misc]approximate:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in (x2 x1 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ -1 x4) (/ -1 x1)) into (/ 1 (* x1 x4))
* [misc]backup-simplify:  Simplify (* -1 (/ 1 (* x1 x4))) into (/ -1 (* x1 x4))
* [misc]taylor:  Taking taylor expansion of (/ -1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of -1 in x1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ -1 x4) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (* 0 (/ -1 x1))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ -1 x1)) into (/ 1 x1)
* [misc]backup-simplify:  Simplify (- (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ -1 x3) (/ 1 x4)) into (- (/ 1 x4) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) (- (/ 1 x4) (/ 1 x3))) into (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))) into (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (* -1 0) (* (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3)) (/ 1 (* x1 x4)))) into (- (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))) (/ 1 (* x1 (* x4 x3))))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))) (/ 1 (* x1 (* x4 x3)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x4 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* 0 (* x4 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x4 x3))) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ -1 x4) in x3
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ -1 x4) into (/ -1 x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (* 0 (/ -1 x1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3)) 0) (* 0 (/ 1 (* x1 x4))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x4 2)) 0) into (/ 1 (pow x4 2))
* [misc]backup-simplify:  Simplify (- (/ 1 (* x4 x3))) into (- (/ 1 (* x4 x3)))
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x4 2)) (- (/ 1 (* x4 x3)))) into (- (/ 1 (pow x4 2)) (/ 1 (* x4 x3)))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (pow x4 2)) (/ 1 (* x4 x3))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x3
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x3
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 x4))) into (- (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 x4) (+ (* (/ -1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ -1 x4) in x4
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ -1 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3)) 0) (+ (* 0 0) (* 0 (/ 1 (* x1 x4)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x4 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x4 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x4)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (* x4 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 x4) (+ (* (/ -1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x4 2)) 0) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 x4) (+ (* (/ -1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* (/ 1 (/ 1 (- x4))) (* 1 (* (pow (/ 1 (- x1)) -2) 1)))) (+ (* -1 (* (/ 1 (/ 1 (- x4))) (* (/ 1 (/ 1 (- x3))) (* (/ 1 (/ 1 (- x1))) 1)))) (* 1 (* (pow (/ 1 (- x4)) -2) (* 1 (* (/ 1 (/ 1 (- x1))) 1)))))) into (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* (pow x1 2) x4)))
* * * * [misc]progress:  [ 2 / 4 ] generating series at (2 1 1)
* [misc]approximate:  Taking taylor expansion of (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) in (x2 x1 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) in x4
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x4
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) in x3
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x3
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x1
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ x3 (- x4)) into (- x3 x4)
* [misc]backup-simplify:  Simplify (+ (- x1) (- x3 x4)) into (- x3 (+ x1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (- x3 (+ x1 x4))) into (- x3 (+ x1 x4))
* [misc]backup-simplify:  Simplify (* x4 x1) into (* x1 x4)
* [misc]backup-simplify:  Simplify (* (- x3 (+ x1 x4)) (* x1 x4)) into (* x1 (* x4 (- x3 (+ x1 x4))))
* [misc]backup-simplify:  Simplify (+ 0 x1) into x1
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ x3 (- x4)) into (- x3 x4)
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (- x3 x4) 0) into (- x3 x4)
* [misc]backup-simplify:  Simplify (- (- x3 x4)) into (- x4 x3)
* [misc]backup-simplify:  Simplify (+ x1 (- x4 x3)) into (- (+ x1 x4) x3)
* [misc]backup-simplify:  Simplify (* x3 (- (+ x1 x4) x3)) into (* x3 (- (+ x1 x4) x3))
* [misc]backup-simplify:  Simplify (+ (* x1 (* x4 (- x3 (+ x1 x4)))) (* x3 (- (+ x1 x4) x3))) into (- (+ (* x1 x3) (+ (* x4 x3) (* x1 (* x4 x3)))) (+ (* x1 (pow x4 2)) (+ (* (pow x1 2) x4) (pow x3 2))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* x1 x3) (+ (* x4 x3) (* x1 (* x4 x3)))) (+ (* x1 (pow x4 2)) (+ (* (pow x1 2) x4) (pow x3 2)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* x1 x3) (+ (* x4 x3) (* x1 (* x4 x3)))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (* x4 x3) (* x1 (* x4 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (* x1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (* x1 (pow x4 2)) (+ (* (pow x1 2) x4) (pow x3 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]taylor:  Taking taylor expansion of (+ (* (pow x1 2) x4) (pow x3 2)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* 0 (* x4 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 x3) 0) into (* x4 x3)
* [misc]backup-simplify:  Simplify (+ 0 (* x4 x3)) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (+ 0 (pow x3 2)) into (pow x3 2)
* [misc]backup-simplify:  Simplify (+ 0 (pow x3 2)) into (pow x3 2)
* [misc]backup-simplify:  Simplify (- (pow x3 2)) into (- (pow x3 2))
* [misc]backup-simplify:  Simplify (+ (* x4 x3) (- (pow x3 2))) into (- (* x4 x3) (pow x3 2))
* [misc]taylor:  Taking taylor expansion of (- (* x4 x3) (pow x3 2)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x3
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x1)) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ (* (- x3 (+ x1 x4)) 0) (* 1 (* x1 x4))) into (* x1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (+ 0 x4) into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ 1 (- x4)) into (- 1 x4)
* [misc]backup-simplify:  Simplify (+ (* x3 (- 1 x4)) (* 0 (- (+ x1 x4) x3))) into (- x3 (* x4 x3))
* [misc]backup-simplify:  Simplify (+ (* x1 x4) (- x3 (* x4 x3))) into (- (+ (* x1 x4) x3) (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (- (+ (* x1 x4) x3) (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* x1 x4) x3) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ 0 x3) into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (- (* x4 x3)) into (- (* x4 x3))
* [misc]backup-simplify:  Simplify (+ x3 (- (* x4 x3))) into (- x3 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (- x3 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x4 x3))) into (* x4 x3)
* [misc]backup-simplify:  Simplify (+ 0 (* x4 x3)) into (* x4 x3)
* [misc]backup-simplify:  Simplify (+ x3 (* x4 x3)) into (+ (* x4 x3) x3)
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (pow x4 2) 0) into (pow x4 2)
* [misc]backup-simplify:  Simplify (- (pow x4 2)) into (- (pow x4 2))
* [misc]backup-simplify:  Simplify (+ (+ (* x4 x3) x3) (- (pow x4 2))) into (- (+ (* x4 x3) x3) (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* x4 x3) x3) (pow x4 2)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (* x4 x3) x3) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x3
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (pow x4 2)) into (- (pow x4 2))
* [misc]backup-simplify:  Simplify (+ 0 (- (pow x4 2))) into (- (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (+ x4 0) into x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x1))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* (- x3 (+ x1 x4)) 0) (+ (* 1 0) (* 0 (* x1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x3 0) (+ (* 0 (- 1 x4)) (* 0 (- (+ x1 x4) x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (+ x4 0) into x4
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ x4 0) into x4
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]approximate:  Taking taylor expansion of (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) in (x2 x1 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) in x4
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) in x3
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) in x1
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) (/ 1 x1)) into (/ 1 (* x1 x4))
* [misc]backup-simplify:  Simplify (* 1 (/ 1 (* x1 x4))) into (/ 1 (* x1 x4))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) 1) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 1 (- (/ 1 x4))) into (- 1 (/ 1 x4))
* [misc]backup-simplify:  Simplify (* (/ 1 x3) (- 1 (/ 1 x4))) into (/ (- 1 (/ 1 x4)) x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x1 x4)) (/ (- 1 (/ 1 x4)) x3)) into (- (+ (/ 1 x3) (/ 1 (* x1 x4))) (/ 1 (* x4 x3)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x3) (/ 1 (* x1 x4))) (/ 1 (* x4 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x3) (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (* 0 (/ 1 x1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 x1)) into (- (/ 1 x1))
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) (- (/ 1 x4))) into (- (/ 1 x3) (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) into (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) into (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))) (/ 1 (* x1 x4)))) into (- (/ 1 (* x1 (* x4 x3))) (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x1)) into (/ 1 x1)
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) (- (/ 1 x4))) into (- (/ 1 x3) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x3) (/ 1 x4)) 0) into (- (/ 1 x3) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (- (/ 1 x3) (/ 1 x4))) into (- (/ 1 x4) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) (- (/ 1 x4) (/ 1 x3))) into (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))) (* 0 (- 1 (/ 1 x4)))) into (- (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3))) (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 (* x1 (* x4 x3))) (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4)))) (- (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3))) (/ 1 (pow x3 2)))) into (- (+ (/ 1 (* x1 (* x4 x3))) (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3)))) (+ (/ 1 (pow x3 2)) (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x1 (* x4 x3))) (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3)))) (+ (/ 1 (pow x3 2)) (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x1 (* x4 x3))) (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x4 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* 0 (* x4 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x4 x3))) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x3 2)) (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x3 2)) into (/ 1 (pow x3 2))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 x4))) into (- (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (* 0 (/ 1 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))) 0) (* 0 (/ 1 (* x1 x4))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))) (* 0 (- 1 (/ 1 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x4 x3)) (/ 1 x3)) into (+ (/ 1 x3) (/ 1 (* x4 x3)))
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x4 2)) 0) into (/ 1 (pow x4 2))
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 (pow x4 2))) into (/ 1 (pow x4 2))
* [misc]backup-simplify:  Simplify (- (/ 1 (pow x4 2))) into (- (/ 1 (pow x4 2)))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x3) (/ 1 (* x4 x3))) (- (/ 1 (pow x4 2)))) into (- (+ (/ 1 x3) (/ 1 (* x4 x3))) (/ 1 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x3) (/ 1 (* x4 x3))) (/ 1 (pow x4 2))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x3) (/ 1 (* x4 x3))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x3
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x3
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) 0) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (- (/ 1 (* x4 x3))) into (- (/ 1 (* x4 x3)))
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) (- (/ 1 (* x4 x3)))) into (- (/ 1 x3) (/ 1 (* x4 x3)))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 (* x4 x3))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x1))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))) 0) (+ (* 0 0) (* 0 (/ 1 (* x1 x4)))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))) (* 0 (- 1 (/ 1 x4)))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (* x4 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x4 x3)) 0) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 (* x4 x3))) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x4 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x4 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x4)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x3 2)) 0) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (- (/ 1 (pow x3 2))) into (- (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x4 x3)) (- (/ 1 (pow x3 2)))) into (- (/ 1 (* x4 x3)) (/ 1 (pow x3 2)))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (* x4 x3)) (/ 1 (pow x3 2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x3
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x3
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 (/ 1 x4)) into (+ 1 (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (+ 1 (/ 1 x4)) 0) into (+ 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ 1 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 1 (- (/ 1 x4))) into (- 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- 1 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x1)))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (* x1 x4))))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))) (* 0 (- 1 (/ 1 x4))))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))) (* 0 (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x3 2)) (/ 0 (pow x3 2))))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 2 (/ (* (pow (* 1 0) 3)) (pow x4 3))) (* -3 (/ (* (pow (* 1 0) 1) (pow (* 2 0) 1)) (pow x4 2))) (* 1 (/ (* 1 1 (pow (* 6 0) 1)) (pow x4 1)))) 6) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (+ (* 0 0) (* 0 (log x4))))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 3) 6)) (* (/ (pow 0 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))) (* 0 (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x4))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))) (* 0 (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 (pow x4 2))) into (- (/ 1 (pow x4 2)))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 (pow x4 2)))) into (- (/ 1 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (pow x4 2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (* -1 (* (/ 1 (/ 1 x4)) (* (/ 1 (/ 1 x3)) (* 1 (/ 1 (/ 1 x2)))))) (+ (* 1 (* (/ 1 (/ 1 x4)) (* (/ 1 (/ 1 x3)) (* (/ 1 (/ 1 x1)) 1)))) (* -1 (* (pow (/ 1 x4) -2) (* 1 (* (/ 1 (/ 1 x1)) 1)))))) into (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* x2 (* x4 x3))))
* [misc]approximate:  Taking taylor expansion of (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) in (x2 x1 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) in x4
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) in x3
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ -1 x4) (/ -1 x1)) into (/ 1 (* x1 x4))
* [misc]backup-simplify:  Simplify (* -1 (/ 1 (* x1 x4))) into (/ -1 (* x1 x4))
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ -1 x4) -1) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ -1 (- (/ 1 x4))) into (- (+ 1 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (* (/ -1 x3) (- (+ 1 (/ 1 x4)))) into (/ (+ 1 (/ 1 x4)) x3)
* [misc]backup-simplify:  Simplify (+ (/ -1 (* x1 x4)) (/ (+ 1 (/ 1 x4)) x3)) into (- (+ (/ 1 x3) (/ 1 (* x4 x3))) (/ 1 (* x1 x4)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x3) (/ 1 (* x4 x3))) (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x3) (/ 1 (* x4 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (* 0 (/ -1 x1))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ -1 x1)) into (/ 1 x1)
* [misc]backup-simplify:  Simplify (- (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ -1 x3) (/ 1 x4)) into (- (/ 1 x4) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) (- (/ 1 x4) (/ 1 x3))) into (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))) into (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (* -1 0) (* (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3)) (/ 1 (* x1 x4)))) into (- (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))) (/ 1 (* x1 (* x4 x3))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ -1 x1)) into (- (/ 1 x1))
* [misc]backup-simplify:  Simplify (- (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ -1 x3) (/ 1 x4)) into (- (/ 1 x4) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (* 0 -1)) into 0
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x4) (/ 1 x3)) 0) into (- (/ 1 x4) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (- (/ 1 x4) (/ 1 x3))) into (- (/ 1 x3) (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) into (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 (- (+ 1 (/ 1 x4))))) into (- (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3))) (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))) (/ 1 (* x1 (* x4 x3)))) (- (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3))) (/ 1 (pow x3 2)))) into (- (+ (/ 1 (* x1 (pow x4 2))) (+ (/ 1 (* x4 x3)) (+ (/ 1 (* (pow x1 2) x4)) (/ 1 (* x1 x3))))) (+ (/ 1 (pow x3 2)) (/ 1 (* x1 (* x4 x3)))))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x1 (pow x4 2))) (+ (/ 1 (* x4 x3)) (+ (/ 1 (* (pow x1 2) x4)) (/ 1 (* x1 x3))))) (+ (/ 1 (pow x3 2)) (/ 1 (* x1 (* x4 x3))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x1 (pow x4 2))) (+ (/ 1 (* x4 x3)) (+ (/ 1 (* (pow x1 2) x4)) (/ 1 (* x1 x3))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x4 x3)) (+ (/ 1 (* (pow x1 2) x4)) (/ 1 (* x1 x3)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* (pow x1 2) x4)) (/ 1 (* x1 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x3 2)) (/ 1 (* x1 (* x4 x3)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x3 2)) into (/ 1 (pow x3 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x4 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* 0 (* x4 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x4 x3))) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 x4))) into (- (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (* 0 (/ -1 x1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3)) 0) (* 0 (/ 1 (* x1 x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (* 0 -1))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 (- (+ 1 (/ 1 x4)))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x4 2)) (/ 1 x3)) into (+ (/ 1 (pow x4 2)) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 (* x4 x3))) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (- (/ 1 (* x4 x3))) into (- (/ 1 (* x4 x3)))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 (pow x4 2)) (/ 1 x3)) (- (/ 1 (* x4 x3)))) into (- (+ (/ 1 (pow x4 2)) (/ 1 x3)) (/ 1 (* x4 x3)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (pow x4 2)) (/ 1 x3)) (/ 1 (* x4 x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x4 2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x3
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x3
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) (/ 1 (* x4 x3))) into (+ (/ 1 x3) (/ 1 (* x4 x3)))
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x3) (/ 1 (* x4 x3))) 0) into (+ (/ 1 x3) (/ 1 (* x4 x3)))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x3) (/ 1 (* x4 x3))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3)) 0) (+ (* 0 0) (* 0 (/ 1 (* x1 x4)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 (- (+ 1 (/ 1 x4))))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x4 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x4 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x4)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x4 x3)) 0) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 (* x4 x3))) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (* x4 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x3 2)) 0) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (- (/ 1 (pow x3 2))) into (- (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x4 x3)) (- (/ 1 (pow x3 2)))) into (- (/ 1 (* x4 x3)) (/ 1 (pow x3 2)))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (* x4 x3)) (/ 1 (pow x3 2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x3
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x3
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 1 (- (/ 1 x4))) into (- 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- 1 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 (/ 1 x4)) into (+ 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ 1 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x1)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (* x1 x4))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 -1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 (- (+ 1 (/ 1 x4)))))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 2 (/ (* (pow (* 1 0) 3)) (pow x4 3))) (* -3 (/ (* (pow (* 1 0) 1) (pow (* 2 0) 1)) (pow x4 2))) (* 1 (/ (* 1 1 (pow (* 6 0) 1)) (pow x4 1)))) 6) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (+ (* 0 0) (* 0 (log x4))))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 3) 6)) (* (/ (pow 0 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))) (* 0 (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x3 2)) (/ 0 (pow x3 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))) (* 0 (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))) (* 0 (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x4))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x4 2)) 0) into (/ 1 (pow x4 2))
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x4 2)) 0) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* (/ 1 (/ 1 (- x4))) (* (/ 1 (/ 1 (- x3))) (* 1 (/ 1 (/ 1 (- x2))))))) (+ (* -1 (* (/ 1 (/ 1 (- x4))) (* (/ 1 (/ 1 (- x3))) (* (/ 1 (/ 1 (- x1))) 1)))) (* 1 (* (pow (/ 1 (- x4)) -2) (* 1 (* (/ 1 (/ 1 (- x1))) 1)))))) into (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* x2 (* x4 x3))))
* * * * [misc]progress:  [ 3 / 4 ] generating series at (2 1 1 2)
* [misc]approximate:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in (x3 x2 x1 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x4
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x1
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x3
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x3
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (+ x2 x1) into (+ x1 x2)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ 0 (- x4)) into (- x4)
* [misc]backup-simplify:  Simplify (* x4 x2) into (* x2 x4)
* [misc]backup-simplify:  Simplify (+ (- x4) (* x2 x4)) into (- (* x2 x4) x4)
* [misc]backup-simplify:  Simplify (- (- (* x2 x4) x4)) into (- x4 (* x2 x4))
* [misc]backup-simplify:  Simplify (+ (+ x1 x2) (- x4 (* x2 x4))) into (- (+ x1 (+ x2 x4)) (* x2 x4))
* [misc]backup-simplify:  Simplify (* 0 (- (+ x1 (+ x2 x4)) (* x2 x4))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x2)) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ (* 0 -1) (* 1 (- (+ x1 (+ x2 x4)) (* x2 x4)))) into (- (+ x1 (+ x2 x4)) (* x2 x4))
* [misc]taylor:  Taking taylor expansion of (- (+ x1 (+ x2 x4)) (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (+ x1 (+ x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 0 x4) into x4
* [misc]backup-simplify:  Simplify (+ x1 x4) into (+ x1 x4)
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ x1 x4) 0) into (+ x1 x4)
* [misc]taylor:  Taking taylor expansion of (+ x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 0 x4) into x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x2))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 -1) (* 0 (- (+ x1 (+ x2 x4)) (* x2 x4))))) into (- 1)
* [misc]taylor:  Taking taylor expansion of (- 1) in x2
* [misc]taylor:  Taking taylor expansion of 1 in x2
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ 1 (- x4)) into (- 1 x4)
* [misc]taylor:  Taking taylor expansion of (- 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of 1 in x1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ 1 (- x4)) into (- 1 x4)
* [misc]taylor:  Taking taylor expansion of (- 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* x1 (* 1 x3)))) (+ (* 1 (* 1 (* 1 (* x2 x3)))) (* -1 (pow (* 1 (* 1 (* 1 x3))) 2)))) into (- (+ (* x1 x3) (* x2 x3)) (pow x3 2))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in (x3 x2 x1 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (* 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (/ 1 x2) (/ 1 x1)) into (+ (/ 1 x2) (/ 1 x1))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 x4))) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (* (/ 1 x4) (/ 1 x2)) into (/ 1 (* x2 x4))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x4)) (/ 1 (* x2 x4))) into (- (/ 1 (* x2 x4)) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (- (/ 1 (* x2 x4)) (/ 1 x4))) into (- (/ 1 x4) (/ 1 (* x2 x4)))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x2) (/ 1 x1)) (- (/ 1 x4) (/ 1 (* x2 x4)))) into (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) (/ 1 (* x2 x4)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) (/ 1 (* x2 x4)))) (* 0 -1)) into (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) (/ 1 (* x2 x4)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) (/ 1 (* x2 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 1 (- (/ 1 x4))) into (- 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- 1 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of 1 in x1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of -1 in x1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (* 0 (/ 1 x2))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) (/ 1 (* x2 x4)))) (* 0 -1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) (/ 1 x4)) into (+ (/ 1 x1) (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (+ (/ 1 x1) (/ 1 x4))) into (+ (/ 1 x1) (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x1) (/ 1 x4)) 0) into (+ (/ 1 x1) (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 1 (- (/ 1 x4))) into (- 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- 1 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x2) (/ 0 x2)) (* 0 (/ 0 x2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (* 0 (/ 1 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (+ (/ 1 x1) (/ 1 x4))) (/ 1 (* x2 x4)))) (* 0 -1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* (/ 1 (/ 1 x1)) (* 1 (/ 1 (/ 1 x3)))))) (+ (* 1 (* (/ 1 (/ 1 x4)) (* 1 (* 1 (/ 1 (/ 1 x3)))))) (* -1 (* (/ 1 (/ 1 x4)) (* 1 (* (/ 1 (/ 1 x2)) (/ 1 (/ 1 x3)))))))) into (- (+ (* x1 x3) (* x4 x3)) (* x2 (* x4 x3)))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in (x3 x2 x1 x4) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (* -1 1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x2
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (/ -1 x2) (/ -1 x1)) into (- (+ (/ 1 x2) (/ 1 x1)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* (/ -1 x4) (/ -1 x2)) into (/ 1 (* x2 x4))
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) (/ 1 (* x2 x4))) into (+ (/ 1 (* x2 x4)) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (+ (/ 1 (* x2 x4)) (/ 1 x4))) into (- (+ (/ 1 (* x2 x4)) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x2) (/ 1 x1))) (- (+ (/ 1 (* x2 x4)) (/ 1 x4)))) into (- (+ (/ 1 x2) (+ (/ 1 (* x2 x4)) (+ (/ 1 x1) (/ 1 x4)))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (- (+ (/ 1 x2) (+ (/ 1 (* x2 x4)) (+ (/ 1 x1) (/ 1 x4)))))) (* 0 1)) into (+ (/ 1 x2) (+ (/ 1 (* x2 x4)) (+ (/ 1 x1) (/ 1 x4))))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (/ 1 (* x2 x4)) (+ (/ 1 x1) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x2 x4)) (+ (/ 1 x1) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x2 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (* x2 x4) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 (/ 1 x4)) into (+ 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ 1 (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of 1 in x1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of -1 in x1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (* 0 (/ -1 x2))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 (- (+ (/ 1 x2) (+ (/ 1 (* x2 x4)) (+ (/ 1 x1) (/ 1 x4)))))) (* 0 1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) (/ 1 x4)) into (+ (/ 1 x1) (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (+ (/ 1 x1) (/ 1 x4))) into (+ (/ 1 x1) (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (+ (/ 1 x1) (/ 1 x4))) into (+ (/ 1 x1) (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 (/ 1 x4)) into (+ 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ 1 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x2) (/ 0 (- x2))) (* 0 (/ 0 (- x2))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (* 0 (/ -1 x2)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x2) (+ (/ 1 (* x2 x4)) (+ (/ 1 x1) (/ 1 x4)))))) (* 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* 1 (* (/ 1 (/ 1 (- x1))) (* 1 (/ 1 (/ 1 (- x3))))))) (+ (* 1 (* (/ 1 (/ 1 (- x4))) (* 1 (* 1 (/ 1 (/ 1 (- x3))))))) (* 1 (* (/ 1 (/ 1 (- x4))) (* 1 (* (/ 1 (/ 1 (- x2))) (/ 1 (/ 1 (- x3))))))))) into (- (+ (* x1 x3) (* x4 x3)) (* x2 (* x4 x3)))
* * * * [misc]progress:  [ 4 / 4 ] generating series at (2 1)
* [misc]approximate:  Taking taylor expansion of (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) in (x2 x1 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) in x4
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x4
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ x3 x4) (- x1 x2))) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ x3 x4) (- x1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (+ x3 x4) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) in x3
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x3
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ x3 x4) (- x1 x2))) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ x3 x4) (- x1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (+ x3 x4) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x1
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ x3 x4) (- x1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ x3 x4) (- x1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (+ x3 x4) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ x3 x4) (- x1 x2))) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ x3 x4) (- x1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (+ x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 (+ (- x1) (- x3 x4))) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (- x1) (- x3 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x1) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) in x2
* [misc]taylor:  Taking taylor expansion of (+ x2 x1) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of (+ (- x3 x4) (* x4 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* x4 x2) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x2 (+ (+ x3 x4) (- x1 x2))) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ x3 x4) (- x1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (+ x3 x4) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (- x1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ x3 (- x4)) into (- x3 x4)
* [misc]backup-simplify:  Simplify (+ (- x1) (- x3 x4)) into (- x3 (+ x1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (- x3 (+ x1 x4))) into (- x3 (+ x1 x4))
* [misc]backup-simplify:  Simplify (* x4 x1) into (* x1 x4)
* [misc]backup-simplify:  Simplify (* (- x3 (+ x1 x4)) (* x1 x4)) into (* x1 (* x4 (- x3 (+ x1 x4))))
* [misc]backup-simplify:  Simplify (+ 0 x1) into x1
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ x3 (- x4)) into (- x3 x4)
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (- x3 x4) 0) into (- x3 x4)
* [misc]backup-simplify:  Simplify (- (- x3 x4)) into (- x4 x3)
* [misc]backup-simplify:  Simplify (+ x1 (- x4 x3)) into (- (+ x1 x4) x3)
* [misc]backup-simplify:  Simplify (* x3 (- (+ x1 x4) x3)) into (* x3 (- (+ x1 x4) x3))
* [misc]backup-simplify:  Simplify (+ (* x1 (* x4 (- x3 (+ x1 x4)))) (* x3 (- (+ x1 x4) x3))) into (- (+ (* x1 x3) (+ (* x4 x3) (* x1 (* x4 x3)))) (+ (* x1 (pow x4 2)) (+ (* (pow x1 2) x4) (pow x3 2))))
* [misc]backup-simplify:  Simplify (+ x3 x4) into (+ x4 x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ x1 0) into x1
* [misc]backup-simplify:  Simplify (+ (+ x4 x3) x1) into (+ x1 (+ x4 x3))
* [misc]backup-simplify:  Simplify (* 0 (+ x1 (+ x4 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (- (+ (* x1 x3) (+ (* x4 x3) (* x1 (* x4 x3)))) (+ (* x1 (pow x4 2)) (+ (* (pow x1 2) x4) (pow x3 2)))) 0) into (- (+ (* x4 x3) (+ (* x1 x3) (* x1 (* x4 x3)))) (+ (* x1 (pow x4 2)) (+ (* (pow x1 2) x4) (pow x3 2))))
* [misc]taylor:  Taking taylor expansion of (- (+ (* x4 x3) (+ (* x1 x3) (* x1 (* x4 x3)))) (+ (* x1 (pow x4 2)) (+ (* (pow x1 2) x4) (pow x3 2)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* x4 x3) (+ (* x1 x3) (* x1 (* x4 x3)))) in x1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (* x1 x3) (* x1 (* x4 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (* x1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (+ (* x1 (pow x4 2)) (+ (* (pow x1 2) x4) (pow x3 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]taylor:  Taking taylor expansion of (+ (* (pow x1 2) x4) (pow x3 2)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* 0 (* x4 x3)) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 x3) 0) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (+ 0 (pow x3 2)) into (pow x3 2)
* [misc]backup-simplify:  Simplify (+ 0 (pow x3 2)) into (pow x3 2)
* [misc]backup-simplify:  Simplify (- (pow x3 2)) into (- (pow x3 2))
* [misc]backup-simplify:  Simplify (+ (* x4 x3) (- (pow x3 2))) into (- (* x4 x3) (pow x3 2))
* [misc]taylor:  Taking taylor expansion of (- (* x4 x3) (pow x3 2)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x3
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x1)) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ (* (- x3 (+ x1 x4)) 0) (* 1 (* x1 x4))) into (* x1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (+ 0 x4) into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ 1 (- x4)) into (- 1 x4)
* [misc]backup-simplify:  Simplify (+ (* x3 (- 1 x4)) (* 0 (- (+ x1 x4) x3))) into (- x3 (* x4 x3))
* [misc]backup-simplify:  Simplify (+ (* x1 x4) (- x3 (* x4 x3))) into (- (+ (* x1 x4) x3) (* x4 x3))
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ (* 0 -1) (* 1 (+ x1 (+ x4 x3)))) into (+ x1 (+ x4 x3))
* [misc]backup-simplify:  Simplify (+ (- (+ (* x1 x4) x3) (* x4 x3)) (+ x1 (+ x4 x3))) into (- (+ x1 (+ (* x1 x4) (+ x4 (* 2 x3)))) (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (- (+ x1 (+ (* x1 x4) (+ x4 (* 2 x3)))) (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (+ x1 (+ (* x1 x4) (+ x4 (* 2 x3)))) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (* x1 x4) (+ x4 (* 2 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (+ x4 (* 2 x3)) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* 2 x3) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (* 2 x3) into (* 2 x3)
* [misc]backup-simplify:  Simplify (+ x4 (* 2 x3)) into (+ x4 (* 2 x3))
* [misc]backup-simplify:  Simplify (+ 0 (+ x4 (* 2 x3))) into (+ x4 (* 2 x3))
* [misc]backup-simplify:  Simplify (+ 0 (+ x4 (* 2 x3))) into (+ x4 (* 2 x3))
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (- (* x4 x3)) into (- (* x4 x3))
* [misc]backup-simplify:  Simplify (+ (+ x4 (* 2 x3)) (- (* x4 x3))) into (- (+ x4 (* 2 x3)) (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (- (+ x4 (* 2 x3)) (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (+ x4 (* 2 x3)) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of (* 2 x3) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* 2 0) into 0
* [misc]backup-simplify:  Simplify (+ x4 0) into x4
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ x4 0) into x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x4 x3))) into (* x4 x3)
* [misc]backup-simplify:  Simplify (+ x3 (* x4 x3)) into (+ (* x4 x3) x3)
* [misc]backup-simplify:  Simplify (+ 0 (+ (* x4 x3) x3)) into (+ (* x4 x3) x3)
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (pow x4 2) 0) into (pow x4 2)
* [misc]backup-simplify:  Simplify (- (pow x4 2)) into (- (pow x4 2))
* [misc]backup-simplify:  Simplify (+ (+ (* x4 x3) x3) (- (pow x4 2))) into (- (+ (* x4 x3) x3) (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (+ (* x4 x3) x3) (pow x4 2)) in x3
* [misc]taylor:  Taking taylor expansion of (+ (* x4 x3) x3) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x3
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (pow x4 2)) into (- (pow x4 2))
* [misc]backup-simplify:  Simplify (+ 0 (- (pow x4 2))) into (- (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (- (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (+ x4 0) into x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x1))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* (- x3 (+ x1 x4)) 0) (+ (* 1 0) (* 0 (* x1 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x3 0) (+ (* 0 (- 1 x4)) (* 0 (- (+ x1 x4) x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 -1) (* 0 (+ x1 (+ x4 x3))))) into (- 1)
* [misc]backup-simplify:  Simplify (+ 0 (- 1)) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ x4 0) into x4
* [misc]backup-simplify:  Simplify (+ 1 x4) into (+ 1 x4)
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ 1 x4) 0) into (+ 1 x4)
* [misc]taylor:  Taking taylor expansion of (+ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (+ 1 x4) into (+ 1 x4)
* [misc]taylor:  Taking taylor expansion of (+ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (* x4 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x4 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x4 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x4)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x3 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x3 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x3)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ x4 0) into x4
* [misc]backup-simplify:  Simplify (+ 0 x4) into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ 0 (- x4)) into (- x4)
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 2 1) (* 0 0)) into 2
* [misc]backup-simplify:  Simplify (+ 0 2) into 2
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (+ 2 (- x4)) into (- 2 x4)
* [misc]taylor:  Taking taylor expansion of (- 2 x4) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 2 0) into 2
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]backup-simplify:  Simplify (+ (* 2 (* 1 (* x3 (* 1 x2)))) (+ (* 1 (* 1 (* 1 (* x1 x2)))) (* -1 (pow (* 1 (* 1 (* 1 x2))) 2)))) into (- (+ (* x1 x2) (* 2 (* x2 x3))) (pow x2 2))
* [misc]approximate:  Taking taylor expansion of (+ (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) (* (/ 1 x2) (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2))))) in (x2 x1 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) (* (/ 1 x2) (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) in x4
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2)))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x3) (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) (* (/ 1 x2) (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2))))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) in x3
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2)))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x3) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) (* (/ 1 x2) (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) in x1
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x3) (/ 1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (/ 1 x2) into (/ 1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) (* (/ 1 x2) (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) (* (/ 1 x2) (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) (* (/ 1 x4) (/ 1 x1))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x3) (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x2) (/ 1 x1)) (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x2) (/ 1 x1)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 x3) (/ 1 x4)) (* (/ 1 x4) (/ 1 x2))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x4) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 x2) (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (+ (/ 1 x3) (/ 1 x4)) (- (/ 1 x1) (/ 1 x2))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x3) (/ 1 x4)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x1) (/ 1 x2)) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (/ 1 x1) into (/ 1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify (* 1 -1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) (/ 1 x1)) into (/ 1 (* x1 x4))
* [misc]backup-simplify:  Simplify (* 1 (/ 1 (* x1 x4))) into (/ 1 (* x1 x4))
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* (/ 1 x4) 1) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 1 (- (/ 1 x4))) into (- 1 (/ 1 x4))
* [misc]backup-simplify:  Simplify (* (/ 1 x3) (- 1 (/ 1 x4))) into (/ (- 1 (/ 1 x4)) x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x1 x4)) (/ (- 1 (/ 1 x4)) x3)) into (- (+ (/ 1 x3) (/ 1 (* x1 x4))) (/ 1 (* x4 x3)))
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) (/ 1 x4)) into (+ (/ 1 x3) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) 0) into (/ 1 x1)
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x3) (/ 1 x4)) (/ 1 x1)) into (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 -1)) into (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x3) (/ 1 (* x1 x4))) (/ 1 (* x4 x3))) (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) into (- (+ (/ 1 (* x1 x4)) (+ (* 2 (/ 1 x3)) (+ (/ 1 x4) (/ 1 x1)))) (/ 1 (* x4 x3)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x1 x4)) (+ (* 2 (/ 1 x3)) (+ (/ 1 x4) (/ 1 x1)))) (/ 1 (* x4 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x1 x4)) (+ (* 2 (/ 1 x3)) (+ (/ 1 x4) (/ 1 x1)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (* 2 (/ 1 x3)) (+ (/ 1 x4) (/ 1 x1))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x4) (/ 1 x1)) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (* 0 (/ 1 x1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 x1)) into (- (/ 1 x1))
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) (- (/ 1 x4))) into (- (/ 1 x3) (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) into (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) into (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))) (/ 1 (* x1 x4)))) into (- (/ 1 (* x1 (* x4 x3))) (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x1)) into (/ 1 x1)
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) (- (/ 1 x4))) into (- (/ 1 x3) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x3) (/ 1 x4)) 0) into (- (/ 1 x3) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (- (/ 1 x3) (/ 1 x4))) into (- (/ 1 x4) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) (- (/ 1 x4) (/ 1 x3))) into (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))) (* 0 (- 1 (/ 1 x4)))) into (- (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3))) (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 (* x1 (* x4 x3))) (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4)))) (- (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3))) (/ 1 (pow x3 2)))) into (- (+ (/ 1 (* x1 (* x4 x3))) (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3)))) (+ (/ 1 (pow x3 2)) (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4)))))
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 -1))) into 0
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 (* x1 (* x4 x3))) (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3)))) (+ (/ 1 (pow x3 2)) (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))))) 0) into (- (+ (/ 1 (* x4 x3)) (+ (/ 1 (* x1 x3)) (/ 1 (* x1 (* x4 x3))))) (+ (/ 1 (* x1 (pow x4 2))) (+ (/ 1 (pow x3 2)) (/ 1 (* (pow x1 2) x4)))))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x4 x3)) (+ (/ 1 (* x1 x3)) (/ 1 (* x1 (* x4 x3))))) (+ (/ 1 (* x1 (pow x4 2))) (+ (/ 1 (pow x3 2)) (/ 1 (* (pow x1 2) x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x4 x3)) (+ (/ 1 (* x1 x3)) (/ 1 (* x1 (* x4 x3))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x1 x3)) (/ 1 (* x1 (* x4 x3)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x4 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* 0 (* x4 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x4 x3))) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x1 (pow x4 2))) (+ (/ 1 (pow x3 2)) (/ 1 (* (pow x1 2) x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x3 2)) (/ 1 (* (pow x1 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x3 2)) into (/ 1 (pow x3 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 x4))) into (- (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 1) into (+ 1 (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (+ 1 (/ 1 x4)) 0) into (+ 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ 1 (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (* 0 (/ 1 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))) 0) (* 0 (/ 1 (* x1 x4))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))) (* 0 (- 1 (/ 1 x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) (/ 1 (* x4 x3))) into (+ (/ 1 x3) (/ 1 (* x4 x3)))
* [misc]backup-simplify:  Simplify (+ 0 (+ (/ 1 x3) (/ 1 (* x4 x3)))) into (+ (/ 1 x3) (/ 1 (* x4 x3)))
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x4 2)) 0) into (/ 1 (pow x4 2))
* [misc]backup-simplify:  Simplify (- (/ 1 (pow x4 2))) into (- (/ 1 (pow x4 2)))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 x3) (/ 1 (* x4 x3))) (- (/ 1 (pow x4 2)))) into (- (+ (/ 1 x3) (/ 1 (* x4 x3))) (/ 1 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 x3) (/ 1 (* x4 x3))) (/ 1 (pow x4 2))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x3) (/ 1 (* x4 x3))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x3
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x3
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (* 2 (/ 1 x3)) into (/ 2 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 2 x3) (/ 1 x4)) into (+ (* 2 (/ 1 x3)) (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 0 (+ (* 2 (/ 1 x3)) (/ 1 x4))) into (+ (* 2 (/ 1 x3)) (/ 1 x4))
* [misc]backup-simplify:  Simplify (- (/ 1 (* x4 x3))) into (- (/ 1 (* x4 x3)))
* [misc]backup-simplify:  Simplify (+ (+ (* 2 (/ 1 x3)) (/ 1 x4)) (- (/ 1 (* x4 x3)))) into (- (+ (* 2 (/ 1 x3)) (/ 1 x4)) (/ 1 (* x4 x3)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* 2 (/ 1 x3)) (/ 1 x4)) (/ 1 (* x4 x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (* 2 (/ 1 x3)) (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x1))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))) 0) (+ (* 0 0) (* 0 (/ 1 (* x1 x4)))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))) (* 0 (- 1 (/ 1 x4)))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 -1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (* x4 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x4 x3)) 0) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x4 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x4 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x4)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x3 2)) 0) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 (pow x3 2))) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (- (/ 1 (pow x3 2))) into (- (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x4 x3)) (- (/ 1 (pow x3 2)))) into (- (/ 1 (* x4 x3)) (/ 1 (pow x3 2)))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (* x4 x3)) (/ 1 (pow x3 2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x3
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x3
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (/ 1 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 1 (/ 1 x4)) into (+ 1 (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (+ 1 (/ 1 x4)) 0) into (+ 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ 1 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* 2 1) into 2
* [misc]backup-simplify:  Simplify (+ 2 0) into 2
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 2 (- (/ 1 x4))) into (- 2 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- 2 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (+ 1 (/ 1 x4)) into (+ 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ 1 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 x1)))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (* x1 x4))))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 x3) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))) (* 0 (- 1 (/ 1 x4))))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x1) (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)) (* 0 (/ 0 x1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 -1)))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))) (* 0 (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 2 (/ (* (pow (* 1 0) 3)) (pow x4 3))) (* -3 (/ (* (pow (* 1 0) 1) (pow (* 2 0) 1)) (pow x4 2))) (* 1 (/ (* 1 1 (pow (* 6 0) 1)) (pow x4 1)))) 6) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (+ (* 0 0) (* 0 (log x4))))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 3) 6)) (* (/ (pow 0 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))) (* 0 (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x3 2)) (/ 0 (pow x3 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x4))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (/ 1 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))) (* 0 (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 (pow x4 2))) into (- (/ 1 (pow x4 2)))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 (pow x4 2)))) into (- (/ 1 (pow x4 2)))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (pow x4 2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ (* -1 (* (/ 1 (/ 1 x4)) (* (/ 1 (/ 1 x3)) (* 1 (/ 1 (/ 1 x2)))))) (+ (* 1 (* (/ 1 (/ 1 x4)) (* (/ 1 (/ 1 x3)) (* (/ 1 (/ 1 x1)) 1)))) (* -1 (* (pow (/ 1 x4) -2) (* 1 (* (/ 1 (/ 1 x1)) 1)))))) into (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* x2 (* x4 x3))))
* [misc]approximate:  Taking taylor expansion of (+ (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) (* (/ 1 (- x2)) (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2)))))) in (x2 x1 x3 x4) around 0
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) (* (/ 1 (- x2)) (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2)))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) in x4
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x4
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2))))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2)))) in x4
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x3)) (/ 1 (- x4))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x4
* [misc]taylor:  Taking taylor expansion of (- x3) in x4
* [misc]taylor:  Taking taylor expansion of x3 in x4
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x4
* [misc]taylor:  Taking taylor expansion of (- x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x4
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x4
* [misc]taylor:  Taking taylor expansion of (- x1) in x4
* [misc]taylor:  Taking taylor expansion of x1 in x4
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x4
* [misc]taylor:  Taking taylor expansion of (- x2) in x4
* [misc]taylor:  Taking taylor expansion of x2 in x4
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) (* (/ 1 (- x2)) (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2)))))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) in x3
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x3
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2))))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2)))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x3)) (/ 1 (- x4))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x3
* [misc]taylor:  Taking taylor expansion of (- x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x3
* [misc]taylor:  Taking taylor expansion of (- x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x3
* [misc]taylor:  Taking taylor expansion of (- x1) in x3
* [misc]taylor:  Taking taylor expansion of x1 in x3
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x3
* [misc]taylor:  Taking taylor expansion of (- x2) in x3
* [misc]taylor:  Taking taylor expansion of x2 in x3
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) (* (/ 1 (- x2)) (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2)))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) in x1
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x3)) (/ 1 (- x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x1
* [misc]taylor:  Taking taylor expansion of (- x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x1
* [misc]taylor:  Taking taylor expansion of (- x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x1
* [misc]taylor:  Taking taylor expansion of (- x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x1
* [misc]taylor:  Taking taylor expansion of (- x2) in x1
* [misc]taylor:  Taking taylor expansion of x2 in x1
* [misc]backup-simplify:  Simplify x2 into x2
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (- x2) into (- x2)
* [misc]backup-simplify:  Simplify (/ 1 (- x2)) into (/ -1 x2)
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) (* (/ 1 (- x2)) (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) (* (/ 1 (- x2)) (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))))) in x2
* [misc]taylor:  Taking taylor expansion of (* (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) (* (/ 1 (- x4)) (/ 1 (- x1)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x1))) (- (/ 1 (- x3)) (/ 1 (- x4)))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x3)) (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (- x2)) (/ 1 (- x1))) (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x2)) (/ 1 (- x1))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (+ (- (/ 1 (- x3)) (/ 1 (- x4))) (* (/ 1 (- x4)) (/ 1 (- x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x4)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (- x2)) (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2))))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (+ (/ 1 (- x3)) (/ 1 (- x4))) (- (/ 1 (- x1)) (/ 1 (- x2)))) in x2
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (- x3)) (/ 1 (- x4))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x3)) in x2
* [misc]taylor:  Taking taylor expansion of (- x3) in x2
* [misc]taylor:  Taking taylor expansion of x3 in x2
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (/ 1 (- x3)) into (/ -1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x4)) in x2
* [misc]taylor:  Taking taylor expansion of (- x4) in x2
* [misc]taylor:  Taking taylor expansion of x4 in x2
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (/ 1 (- x4)) into (/ -1 x4)
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x1)) (/ 1 (- x2))) in x2
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x1)) in x2
* [misc]taylor:  Taking taylor expansion of (- x1) in x2
* [misc]taylor:  Taking taylor expansion of x1 in x2
* [misc]backup-simplify:  Simplify x1 into x1
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (/ 1 (- x1)) into (/ -1 x1)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x2)) in x2
* [misc]taylor:  Taking taylor expansion of (- x2) in x2
* [misc]taylor:  Taking taylor expansion of x2 in x2
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]backup-simplify:  Simplify (- -1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (* -1 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ -1 x4) (/ -1 x1)) into (/ 1 (* x1 x4))
* [misc]backup-simplify:  Simplify (* -1 (/ 1 (* x1 x4))) into (/ -1 (* x1 x4))
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* (/ -1 x4) -1) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ -1 (- (/ 1 x4))) into (- (+ 1 (/ 1 x4)))
* [misc]backup-simplify:  Simplify (* (/ -1 x3) (- (+ 1 (/ 1 x4)))) into (/ (+ 1 (/ 1 x4)) x3)
* [misc]backup-simplify:  Simplify (+ (/ -1 (* x1 x4)) (/ (+ 1 (/ 1 x4)) x3)) into (- (+ (/ 1 x3) (/ 1 (* x4 x3))) (/ 1 (* x1 x4)))
* [misc]backup-simplify:  Simplify (+ (/ -1 x3) (/ -1 x4)) into (- (+ (/ 1 x3) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ -1 x1) 0) into (- (/ 1 x1))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x3) (/ 1 x4))) (- (/ 1 x1))) into (- (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 (- (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))))) (* 0 1)) into (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 x3) (/ 1 (* x4 x3))) (/ 1 (* x1 x4))) (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) into (- (+ (* 2 (/ 1 x3)) (+ (/ 1 x4) (+ (/ 1 x1) (/ 1 (* x4 x3))))) (/ 1 (* x1 x4)))
* [misc]taylor:  Taking taylor expansion of (- (+ (* 2 (/ 1 x3)) (+ (/ 1 x4) (+ (/ 1 x1) (/ 1 (* x4 x3))))) (/ 1 (* x1 x4))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (* 2 (/ 1 x3)) (+ (/ 1 x4) (+ (/ 1 x1) (/ 1 (* x4 x3))))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x4) (+ (/ 1 x1) (/ 1 (* x4 x3)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x1) (/ 1 (* x4 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 x1) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x4) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 0 x4) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x4)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (* 0 (/ -1 x1))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ -1 x1)) into (/ 1 x1)
* [misc]backup-simplify:  Simplify (- (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ -1 x3) (/ 1 x4)) into (- (/ 1 x4) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (/ 1 x1) (- (/ 1 x4) (/ 1 x3))) into (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ 0 (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))) into (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (* -1 0) (* (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3)) (/ 1 (* x1 x4)))) into (- (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))) (/ 1 (* x1 (* x4 x3))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ -1 x1)) into (- (/ 1 x1))
* [misc]backup-simplify:  Simplify (- (/ -1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ -1 x3) (/ 1 x4)) into (- (/ 1 x4) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (* 0 -1)) into 0
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x4) (/ 1 x3)) 0) into (- (/ 1 x4) (/ 1 x3))
* [misc]backup-simplify:  Simplify (- (- (/ 1 x4) (/ 1 x3))) into (- (/ 1 x3) (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (- (/ 1 x1)) (- (/ 1 x3) (/ 1 x4))) into (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 (- (+ 1 (/ 1 x4))))) into (- (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3))) (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 (* x1 (pow x4 2))) (/ 1 (* (pow x1 2) x4))) (/ 1 (* x1 (* x4 x3)))) (- (+ (/ 1 (* x4 x3)) (/ 1 (* x1 x3))) (/ 1 (pow x3 2)))) into (- (+ (/ 1 (* x1 (pow x4 2))) (+ (/ 1 (* x4 x3)) (+ (/ 1 (* (pow x1 2) x4)) (/ 1 (* x1 x3))))) (+ (/ 1 (pow x3 2)) (/ 1 (* x1 (* x4 x3)))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 (- (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))))) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (+ (- (+ (/ 1 (* x1 (pow x4 2))) (+ (/ 1 (* x4 x3)) (+ (/ 1 (* (pow x1 2) x4)) (/ 1 (* x1 x3))))) (+ (/ 1 (pow x3 2)) (/ 1 (* x1 (* x4 x3))))) 0) into (- (+ (/ 1 (* x1 (pow x4 2))) (+ (/ 1 (* x4 x3)) (+ (/ 1 (* x1 x3)) (/ 1 (* (pow x1 2) x4))))) (+ (/ 1 (* x1 (* x4 x3))) (/ 1 (pow x3 2))))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (* x1 (pow x4 2))) (+ (/ 1 (* x4 x3)) (+ (/ 1 (* x1 x3)) (/ 1 (* (pow x1 2) x4))))) (+ (/ 1 (* x1 (* x4 x3))) (/ 1 (pow x3 2)))) in x1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x1 (pow x4 2))) (+ (/ 1 (* x4 x3)) (+ (/ 1 (* x1 x3)) (/ 1 (* (pow x1 2) x4))))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (pow x4 2))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (pow x4 2)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (* 0 (pow x4 2)) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x4 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x4))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (pow x4 2))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x4 x3)) (+ (/ 1 (* x1 x3)) (/ 1 (* (pow x1 2) x4)))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x1 x3)) (/ 1 (* (pow x1 2) x4))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 x3)) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 x3) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* 0 x3) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 x3)) into x3
* [misc]backup-simplify:  Simplify (/ 1 x3) into (/ 1 x3)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* (pow x1 2) x4)) in x1
* [misc]taylor:  Taking taylor expansion of (* (pow x1 2) x4) in x1
* [misc]taylor:  Taking taylor expansion of (pow x1 2) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (* 1 x4) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (* x1 (* x4 x3))) (/ 1 (pow x3 2))) in x1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x1 (* x4 x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* x1 (* x4 x3)) in x1
* [misc]taylor:  Taking taylor expansion of x1 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x1
* [misc]taylor:  Taking taylor expansion of x4 in x1
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (* x4 x3) into (* x4 x3)
* [misc]backup-simplify:  Simplify (* 0 (* x4 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (* 1 (* x4 x3))) into (* x4 x3)
* [misc]backup-simplify:  Simplify (/ 1 (* x4 x3)) into (/ 1 (* x4 x3))
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x1
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x1
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x3))) in x1
* [misc]taylor:  Taking taylor expansion of (* 2 (log x3)) in x1
* [misc]taylor:  Taking taylor expansion of 2 in x1
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x3) in x1
* [misc]taylor:  Taking taylor expansion of x3 in x1
* [misc]backup-simplify:  Simplify x3 into x3
* [misc]backup-simplify:  Simplify (log x3) into (log x3)
* [misc]backup-simplify:  Simplify (* 2 (log x3)) into (* 2 (log x3))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x3))) into (pow x3 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x3 2)) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 1 (- (/ 1 x4))) into (- 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- 1 (/ 1 x4)) in x3
* [misc]taylor:  Taking taylor expansion of 1 in x3
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of -1 in x3
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (* 0 (/ -1 x1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3)) 0) (* 0 (/ 1 (* x1 x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (* 0 -1))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 (- (+ 1 (/ 1 x4)))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))))) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (* 0 x4)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x3) 0) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x3)) into (/ 1 x3)
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x4 2)) (/ 1 x3)) into (+ (/ 1 (pow x4 2)) (/ 1 x3))
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x4 x3)) 0) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (- (/ 1 (* x4 x3))) into (- (/ 1 (* x4 x3)))
* [misc]backup-simplify:  Simplify (+ (+ (/ 1 (pow x4 2)) (/ 1 x3)) (- (/ 1 (* x4 x3)))) into (- (+ (/ 1 (pow x4 2)) (/ 1 x3)) (/ 1 (* x4 x3)))
* [misc]taylor:  Taking taylor expansion of (- (+ (/ 1 (pow x4 2)) (/ 1 x3)) (/ 1 (* x4 x3))) in x3
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 (pow x4 2)) (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x3
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x3
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log x4))) in x3
* [misc]taylor:  Taking taylor expansion of (* 2 (log x4)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (log x4) into (log x4)
* [misc]backup-simplify:  Simplify (* 2 (log x4)) into (* 2 (log x4))
* [misc]backup-simplify:  Simplify (exp (* 2 (log x4))) into (pow x4 2)
* [misc]backup-simplify:  Simplify (/ 1 (pow x4 2)) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (* 2 (/ 1 x3)) into (/ 2 x3)
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 (* x4 x3))) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) (/ 1 (* x4 x3))) into (+ (/ 1 (* x4 x3)) (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ (/ 2 x3) (+ (/ 1 (* x4 x3)) (/ 1 x4))) into (+ (* 2 (/ 1 x3)) (+ (/ 1 (* x4 x3)) (/ 1 x4)))
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (+ (* 2 (/ 1 x3)) (+ (/ 1 (* x4 x3)) (/ 1 x4))) 0) into (+ (* 2 (/ 1 x3)) (+ (/ 1 x4) (/ 1 (* x4 x3))))
* [misc]taylor:  Taking taylor expansion of (+ (* 2 (/ 1 x3)) (+ (/ 1 x4) (/ 1 (* x4 x3)))) in x3
* [misc]taylor:  Taking taylor expansion of (* 2 (/ 1 x3)) in x3
* [misc]taylor:  Taking taylor expansion of 2 in x3
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 x3) in x3
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (/ 1 x4) (/ 1 (* x4 x3))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3)) 0) (+ (* 0 0) (* 0 (/ 1 (* x1 x4)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 (- (+ 1 (/ 1 x4))))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))))) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow x4 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow x4 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log x4)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (pow x4 2)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (* 0 x4))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x4 x3)) 0) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 (* x4 x3))) into (/ 1 (* x4 x3))
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (* x4 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 (pow x3 2))) into (/ 1 (pow x3 2))
* [misc]backup-simplify:  Simplify (- (/ 1 (pow x3 2))) into (- (/ 1 (pow x3 2)))
* [misc]backup-simplify:  Simplify (+ (/ 1 (* x4 x3)) (- (/ 1 (pow x3 2)))) into (- (/ 1 (* x4 x3)) (/ 1 (pow x3 2)))
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (* x4 x3)) (/ 1 (pow x3 2))) in x3
* [misc]taylor:  Taking taylor expansion of (/ 1 (* x4 x3)) in x3
* [misc]taylor:  Taking taylor expansion of (* x4 x3) in x3
* [misc]taylor:  Taking taylor expansion of x4 in x3
* [misc]backup-simplify:  Simplify x4 into x4
* [misc]taylor:  Taking taylor expansion of x3 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* x4 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 1) (* 0 0)) into x4
* [misc]backup-simplify:  Simplify (/ 1 x4) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x3 2)) in x3
* [misc]taylor:  Taking taylor expansion of (pow x3 2) in x3
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (/ 1 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 1 (- (/ 1 x4))) into (- 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- 1 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* 2 1) into 2
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 2 (/ 1 x4)) into (+ 2 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (+ 2 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of 2 in x4
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (/ 1 x4)) into (- (/ 1 x4))
* [misc]backup-simplify:  Simplify (+ 1 (- (/ 1 x4))) into (- 1 (/ 1 x4))
* [misc]taylor:  Taking taylor expansion of (- 1 (/ 1 x4)) in x4
* [misc]taylor:  Taking taylor expansion of 1 in x4
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of -1 in x4
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ -1 x1)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* (- (+ (/ 1 x1) (/ 1 x4)) (/ 1 x3)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (* x1 x4))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 -1))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ -1 x3) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (/ 1 x3) (+ (/ 1 x1) (/ 1 x4)))) (* 0 (- (+ 1 (/ 1 x4)))))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x3) into (- x3)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x3) (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))) (* 0 (/ 0 (- x3))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x4) into (- x4)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x4) (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))) (* 0 (/ 0 (- x4))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- x1) into (- x1)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 x1) (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))) (* 0 (/ 0 (- x1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (+ (/ 1 x3) (+ (/ 1 x1) (/ 1 x4))))) (* 0 1)))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x1
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 2 (/ (* (pow (* 1 0) 3)) (pow x4 3))) (* -3 (/ (* (pow (* 1 0) 1) (pow (* 2 0) 1)) (pow x4 2))) (* 1 (/ (* 1 1 (pow (* 6 0) 1)) (pow x4 1)))) 6) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (+ (* 0 0) (* 0 (log x4))))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x4))) (+ (* (/ (pow 0 3) 6)) (* (/ (pow 0 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x4 2)) (/ 0 (pow x4 2))) (* 0 (/ 0 (pow x4 2))))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (* 0 x3)) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (+ (* 0 0) (* 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))) (* 0 (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow x3 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log x3))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log x3))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (pow x3 2)) (/ 0 (pow x3 2))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x3) (/ 0 x3)) (* 0 (/ 0 x3)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (/ 1 x3)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 0) (* 0 x3))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (* x4 x3)) (/ 0 (* x4 x3))) (* 0 (/ 0 (* x4 x3))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 x4))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)) (* 0 (/ 0 x4)) (* 0 (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x3
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x4 2)) 0) into (/ 1 (pow x4 2))
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 (pow x4 2)) 0) into (/ 1 (pow x4 2))
* [misc]taylor:  Taking taylor expansion of (/ 1 (pow x4 2)) in x4
* [misc]taylor:  Taking taylor expansion of (pow x4 2) in x4
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (+ (* x4 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (+ (/ 1 x4) 0) into (/ 1 x4)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 x4)) into (/ 1 x4)
* [misc]taylor:  Taking taylor expansion of (/ 1 x4) in x4
* [misc]taylor:  Taking taylor expansion of x4 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 x4) (/ 0 x4)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in x4
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (+ 0 -1) into -1
* [misc]backup-simplify:  Simplify -1 into -1
* [misc]backup-simplify:  Simplify (+ 0 1) into 1
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (+ (* 1 (* (/ 1 (/ 1 (- x4))) (* (/ 1 (/ 1 (- x3))) (* 1 (/ 1 (/ 1 (- x2))))))) (+ (* -1 (* (/ 1 (/ 1 (- x4))) (* (/ 1 (/ 1 (- x3))) (* (/ 1 (/ 1 (- x1))) 1)))) (* 1 (* (pow (/ 1 (- x4)) -2) (* 1 (* (/ 1 (/ 1 (- x1))) 1)))))) into (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* x2 (* x4 x3))))
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 1) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (31 enodes)
* * [misc]simplify:  iters left: 3 (64 enodes)
* * [misc]simplify:  iters left: 2 (113 enodes)
* * [misc]simplify:  iters left: 1 (137 enodes)
* [exit]simplify:  Simplified to (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1))))
* [exit]simplify:  Simplified to (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1))))
* * * * [misc]progress:  [ 2 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 1) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* * * * [misc]progress:  [ 3 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (exp (+ (log (+ x2 (+ (- x1) (- x3 x4)))) (log (* x4 x1)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (log (+ x2 (+ (- x1) (- x3 x4)))) (log (* x4 x1)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (52 enodes)
* * [misc]simplify:  iters left: 2 (62 enodes)
* * [misc]simplify:  iters left: 1 (65 enodes)
* [exit]simplify:  Simplified to (+ (log (+ (+ (- x1) (- x3 x4)) x2)) (log (* x1 x4)))
* [exit]simplify:  Simplified to (+ (log (+ (+ (- x1) (- x3 x4)) x2)) (log (* x1 x4)))
* * * * [misc]progress:  [ 4 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (exp (log (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (log (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (40 enodes)
* * [misc]simplify:  iters left: 3 (80 enodes)
* * [misc]simplify:  iters left: 2 (135 enodes)
* * [misc]simplify:  iters left: 1 (160 enodes)
* [exit]simplify:  Simplified to (log (* (* x1 x4) (+ (+ (- x2 x4) x3) (- x1))))
* [exit]simplify:  Simplified to (log (* (* x1 x4) (+ (+ (- x2 x4) x3) (- x1))))
* * * * [misc]progress:  [ 5 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (log (exp (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (exp (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (40 enodes)
* * [misc]simplify:  iters left: 3 (91 enodes)
* * [misc]simplify:  iters left: 2 (166 enodes)
* * [misc]simplify:  iters left: 1 (217 enodes)
* [exit]simplify:  Simplified to (pow (/ (/ (exp x3) (exp x1)) (exp (- x4 x2))) (* x1 x4))
* [exit]simplify:  Simplified to (pow (/ (/ (exp x3) (exp x1)) (exp (- x4 x2))) (* x1 x4))
* * * * [misc]progress:  [ 6 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (cbrt (* (* (* (+ x2 (+ (- x1) (- x3 x4))) (+ x2 (+ (- x1) (- x3 x4)))) (+ x2 (+ (- x1) (- x3 x4)))) (* (* (* x4 x1) (* x4 x1)) (* x4 x1)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (* (* (+ x2 (+ (- x1) (- x3 x4))) (+ x2 (+ (- x1) (- x3 x4)))) (+ x2 (+ (- x1) (- x3 x4)))) (* (* (* x4 x1) (* x4 x1)) (* x4 x1)))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (39 enodes)
* * [misc]simplify:  iters left: 4 (116 enodes)
* * [misc]simplify:  iters left: 3 (337 enodes)
* [exit]simplify:  Simplified to (* (pow (- (+ (+ x2 x3) (- x1)) x4) 3) (pow (* x1 x4) 3))
* [exit]simplify:  Simplified to (* (pow (- (+ (+ x2 x3) (- x1)) x4) 3) (pow (* x1 x4) 3))
* * * * [misc]progress:  [ 7 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (* (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))) (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (66 enodes)
* * [misc]simplify:  iters left: 2 (115 enodes)
* * [misc]simplify:  iters left: 1 (139 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4)))) (cbrt (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4)))))
* [exit]simplify:  Simplified to (* (cbrt (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4)))) (cbrt (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4)))))
* [enter]simplify:  Simplifying (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (65 enodes)
* * [misc]simplify:  iters left: 2 (114 enodes)
* * [misc]simplify:  iters left: 1 (138 enodes)
* [exit]simplify:  Simplified to (cbrt (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4))))
* [exit]simplify:  Simplified to (cbrt (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4))))
* * * * [misc]progress:  [ 8 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (cbrt (* (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (54 enodes)
* * [misc]simplify:  iters left: 3 (198 enodes)
* [exit]simplify:  Simplified to (pow (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))) 3)
* [exit]simplify:  Simplified to (pow (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))) 3)
* * * * [misc]progress:  [ 9 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (65 enodes)
* * [misc]simplify:  iters left: 2 (114 enodes)
* * [misc]simplify:  iters left: 1 (138 enodes)
* [exit]simplify:  Simplified to (sqrt (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4))))
* [exit]simplify:  Simplified to (sqrt (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4))))
* [enter]simplify:  Simplifying (sqrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (65 enodes)
* * [misc]simplify:  iters left: 2 (114 enodes)
* * [misc]simplify:  iters left: 1 (138 enodes)
* [exit]simplify:  Simplified to (sqrt (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4))))
* [exit]simplify:  Simplified to (sqrt (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4))))
* * * * [misc]progress:  [ 10 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* 1 (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* * * * [misc]progress:  [ 11 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) x4) x1) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (+ x2 (+ (- x1) (- x3 x4))) x4)
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (37 enodes)
* * [misc]simplify:  iters left: 3 (62 enodes)
* * [misc]simplify:  iters left: 2 (77 enodes)
* * [misc]simplify:  iters left: 1 (93 enodes)
* [exit]simplify:  Simplified to (* (+ (+ x2 (- x3 x4)) (- x1)) x4)
* [exit]simplify:  Simplified to (* (+ (+ x2 (- x3 x4)) (- x1)) x4)
* * * * [misc]progress:  [ 12 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (* (cbrt (+ x2 (+ (- x1) (- x3 x4)))) (cbrt (+ x2 (+ (- x1) (- x3 x4))))) (* (cbrt (+ x2 (+ (- x1) (- x3 x4)))) (* x4 x1))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (cbrt (+ x2 (+ (- x1) (- x3 x4)))) (* x4 x1))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (49 enodes)
* * [misc]simplify:  iters left: 2 (58 enodes)
* * [misc]simplify:  iters left: 1 (61 enodes)
* [exit]simplify:  Simplified to (* (cbrt (+ (+ (- x2 x4) x3) (- x1))) (* x1 x4))
* [exit]simplify:  Simplified to (* (cbrt (+ (+ (- x2 x4) x3) (- x1))) (* x1 x4))
* * * * [misc]progress:  [ 13 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (sqrt (+ x2 (+ (- x1) (- x3 x4)))) (* (sqrt (+ x2 (+ (- x1) (- x3 x4)))) (* x4 x1))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (sqrt (+ x2 (+ (- x1) (- x3 x4)))) (* x4 x1))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (49 enodes)
* * [misc]simplify:  iters left: 2 (58 enodes)
* * [misc]simplify:  iters left: 1 (61 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (+ (- x2 x4) x3) (- x1))) (* x1 x4))
* [exit]simplify:  Simplified to (* (sqrt (+ (+ (- x2 x4) x3) (- x1))) (* x1 x4))
* * * * [misc]progress:  [ 14 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* 1 (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (31 enodes)
* * [misc]simplify:  iters left: 3 (64 enodes)
* * [misc]simplify:  iters left: 2 (113 enodes)
* * [misc]simplify:  iters left: 1 (137 enodes)
* [exit]simplify:  Simplified to (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1))))
* [exit]simplify:  Simplified to (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1))))
* * * * [misc]progress:  [ 15 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (/ (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4)))))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (26 enodes)
* * [misc]simplify:  iters left: 4 (40 enodes)
* * [misc]simplify:  iters left: 3 (92 enodes)
* * [misc]simplify:  iters left: 2 (260 enodes)
* [exit]simplify:  Simplified to (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))
* [exit]simplify:  Simplified to (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))
* * * * [misc]progress:  [ 16 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (/ (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (- x2 (+ (- x1) (- x3 x4)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (60 enodes)
* * [misc]simplify:  iters left: 3 (140 enodes)
* * [misc]simplify:  iters left: 2 (457 enodes)
* [exit]simplify:  Simplified to (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))
* [exit]simplify:  Simplified to (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))
* * * * [misc]progress:  [ 17 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (* x4 x1) (+ x2 (+ (- x1) (- x3 x4)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* * * * [misc]progress:  [ 18 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (log (* (exp (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (exp (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (exp (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (exp (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (18 enodes)
* * [misc]simplify:  iters left: 5 (43 enodes)
* * [misc]simplify:  iters left: 4 (84 enodes)
* * [misc]simplify:  iters left: 3 (164 enodes)
* * [misc]simplify:  iters left: 2 (300 enodes)
* [exit]simplify:  Simplified to (exp (+ (* (* x1 x4) (+ (- x1) (- (+ x2 x3) x4))) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))))
* [exit]simplify:  Simplified to (exp (+ (* (* x1 x4) (+ (- x1) (- (+ x2 x3) x4))) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))))
* * * * [misc]progress:  [ 19 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (pow (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) 1) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* * * * [misc]progress:  [ 20 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (exp (log (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (log (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (36 enodes)
* * [misc]simplify:  iters left: 4 (69 enodes)
* * [misc]simplify:  iters left: 3 (126 enodes)
* * [misc]simplify:  iters left: 2 (220 enodes)
* * [misc]simplify:  iters left: 1 (309 enodes)
* [exit]simplify:  Simplified to (log (+ (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))) (* (+ (+ x4 x2) (- (- x1 x3) (* x2 x4))) x3)))
* [exit]simplify:  Simplified to (log (+ (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))) (* (+ (+ x4 x2) (- (- x1 x3) (* x2 x4))) x3)))
* * * * [misc]progress:  [ 21 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (log (exp (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (exp (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (39 enodes)
* * [misc]simplify:  iters left: 4 (81 enodes)
* * [misc]simplify:  iters left: 3 (170 enodes)
* * [misc]simplify:  iters left: 2 (346 enodes)
* [exit]simplify:  Simplified to (exp (+ (* (* x1 x4) (+ (- x1) (- x3 (- x4 x2)))) (* (+ (+ (- x1 x3) x2) (- x4 (* x2 x4))) x3)))
* [exit]simplify:  Simplified to (exp (+ (* (* x1 x4) (+ (- x1) (- x3 (- x4 x2)))) (* (+ (+ (- x1 x3) x2) (- x4 (* x2 x4))) x3)))
* * * * [misc]progress:  [ 22 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (* (* (cbrt (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (cbrt (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (cbrt (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (cbrt (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (cbrt (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))))
* * [misc]simplify:  iters left: 6 (18 enodes)
* * [misc]simplify:  iters left: 5 (37 enodes)
* * [misc]simplify:  iters left: 4 (70 enodes)
* * [misc]simplify:  iters left: 3 (127 enodes)
* * [misc]simplify:  iters left: 2 (221 enodes)
* * [misc]simplify:  iters left: 1 (308 enodes)
* [exit]simplify:  Simplified to (* (cbrt (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (+ (- x2 x3) (- (+ x1 x4) (* x2 x4))) x3))) (cbrt (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (+ (- x2 x3) (- (+ x1 x4) (* x2 x4))) x3))))
* [exit]simplify:  Simplified to (* (cbrt (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (+ (- x2 x3) (- (+ x1 x4) (* x2 x4))) x3))) (cbrt (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (+ (- x2 x3) (- (+ x1 x4) (* x2 x4))) x3))))
* [enter]simplify:  Simplifying (cbrt (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (36 enodes)
* * [misc]simplify:  iters left: 4 (69 enodes)
* * [misc]simplify:  iters left: 3 (126 enodes)
* * [misc]simplify:  iters left: 2 (220 enodes)
* * [misc]simplify:  iters left: 1 (309 enodes)
* [exit]simplify:  Simplified to (cbrt (+ (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))) (* (+ (+ x4 x2) (- (- x1 x3) (* x2 x4))) x3)))
* [exit]simplify:  Simplified to (cbrt (+ (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))) (* (+ (+ x4 x2) (- (- x1 x3) (* x2 x4))) x3)))
* * * * [misc]progress:  [ 23 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (cbrt (* (* (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (* (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (18 enodes)
* * [misc]simplify:  iters left: 5 (50 enodes)
* * [misc]simplify:  iters left: 4 (137 enodes)
* * [misc]simplify:  iters left: 3 (406 enodes)
* [exit]simplify:  Simplified to (pow (+ (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (* (+ (+ x1 (- x2 x3)) (- x4 (* x2 x4))) x3)) 3)
* [exit]simplify:  Simplified to (pow (+ (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (* (+ (+ x1 (- x2 x3)) (- x4 (* x2 x4))) x3)) 3)
* * * * [misc]progress:  [ 24 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (* (sqrt (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (sqrt (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (sqrt (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (36 enodes)
* * [misc]simplify:  iters left: 4 (69 enodes)
* * [misc]simplify:  iters left: 3 (126 enodes)
* * [misc]simplify:  iters left: 2 (220 enodes)
* * [misc]simplify:  iters left: 1 (309 enodes)
* [exit]simplify:  Simplified to (sqrt (+ (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))) (* (+ (+ x4 x2) (- (- x1 x3) (* x2 x4))) x3)))
* [exit]simplify:  Simplified to (sqrt (+ (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))) (* (+ (+ x4 x2) (- (- x1 x3) (* x2 x4))) x3)))
* [enter]simplify:  Simplifying (sqrt (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (36 enodes)
* * [misc]simplify:  iters left: 4 (69 enodes)
* * [misc]simplify:  iters left: 3 (126 enodes)
* * [misc]simplify:  iters left: 2 (220 enodes)
* * [misc]simplify:  iters left: 1 (309 enodes)
* [exit]simplify:  Simplified to (sqrt (+ (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))) (* (+ (+ x4 x2) (- (- x1 x3) (* x2 x4))) x3)))
* [exit]simplify:  Simplified to (sqrt (+ (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))) (* (+ (+ x4 x2) (- (- x1 x3) (* x2 x4))) x3)))
* * * * [misc]progress:  [ 25 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3)))))))
* * [misc]simplify:  iters left: 6 (41 enodes)
* * [misc]simplify:  iters left: 5 (123 enodes)
* * [misc]simplify:  iters left: 4 (304 enodes)
* [exit]simplify:  Simplified to (+ (* (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3)))) (* x3 (+ (* x2 x2) (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1))))))) (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (+ (* x2 x2) (* (- x1 x2) x1)))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))))
* [exit]simplify:  Simplified to (+ (* (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3)))) (* x3 (+ (* x2 x2) (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1))))))) (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (+ (* x2 x2) (* (- x1 x2) x1)))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))))
* [enter]simplify:  Simplifying (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (70 enodes)
* * [misc]simplify:  iters left: 4 (175 enodes)
* * [misc]simplify:  iters left: 3 (423 enodes)
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))))
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))))
* * * * [misc]progress:  [ 26 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))))))))
* * [misc]simplify:  iters left: 6 (37 enodes)
* * [misc]simplify:  iters left: 5 (91 enodes)
* * [misc]simplify:  iters left: 4 (185 enodes)
* * [misc]simplify:  iters left: 3 (425 enodes)
* [exit]simplify:  Simplified to (+ (* (* (- (* x1 x1) (* (- x1 x2) x2)) (- (- x3 x4) (* x2 x4))) (+ (* (* (* x1 x4) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* (* x1 x4) (pow x2 3)))) (* (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (- (- x3 x4) (* x2 x4)) (+ (* x2 x4) (- x3 x4))) (- (* x1 x1) (* (- x1 x2) x2)))) (+ (* (+ (- x1) (- x3 (+ x4 x2))) (* (+ (- x3 x4) (- x1)) x3)) (* (* x2 x2) x3))))
* [exit]simplify:  Simplified to (+ (* (* (- (* x1 x1) (* (- x1 x2) x2)) (- (- x3 x4) (* x2 x4))) (+ (* (* (* x1 x4) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* (* x1 x4) (pow x2 3)))) (* (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (- (- x3 x4) (* x2 x4)) (+ (* x2 x4) (- x3 x4))) (- (* x1 x1) (* (- x1 x2) x2)))) (+ (* (+ (- x1) (- x3 (+ x4 x2))) (* (+ (- x3 x4) (- x1)) x3)) (* (* x2 x2) x3))))
* [enter]simplify:  Simplifying (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2))))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (53 enodes)
* * [misc]simplify:  iters left: 4 (111 enodes)
* * [misc]simplify:  iters left: 3 (243 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (- (- x3 x4) (* x4 x2))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2)))
* [exit]simplify:  Simplified to (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (- (- x3 x4) (* x4 x2))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2)))
* * * * [misc]progress:  [ 27 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3)))))))
* * [misc]simplify:  iters left: 6 (38 enodes)
* * [misc]simplify:  iters left: 5 (113 enodes)
* * [misc]simplify:  iters left: 4 (219 enodes)
* * [misc]simplify:  iters left: 3 (481 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- x2 x1) (* x1 x4)) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))) (* (+ (* (* x3 (+ (- x3 x4) (- x1))) (- (- x1) (- x2 (- x3 x4)))) (* x3 (* x2 x2))) (- (* (* (- x2 x1) (+ x2 x1)) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))) (+ (* (- x2 x1) (pow (* x2 x4) 3)) (* (* (- x3 x4) (- x3 x4)) (* (- x2 x1) (- x3 x4)))))))
* [exit]simplify:  Simplified to (+ (* (* (* (- x2 x1) (* x1 x4)) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))) (* (+ (* (* x3 (+ (- x3 x4) (- x1))) (- (- x1) (- x2 (- x3 x4)))) (* x3 (* x2 x2))) (- (* (* (- x2 x1) (+ x2 x1)) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))) (+ (* (- x2 x1) (pow (* x2 x4) 3)) (* (* (- x3 x4) (- x3 x4)) (* (- x2 x1) (- x3 x4)))))))
* [enter]simplify:  Simplifying (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (61 enodes)
* * [misc]simplify:  iters left: 4 (123 enodes)
* * [misc]simplify:  iters left: 3 (259 enodes)
* [exit]simplify:  Simplified to (* (+ (* (- (- x3 x4) (- x2 (- x1))) (* (+ (- x3 x4) (- x1)) (- x2 x1))) (* (* x2 x2) (- x2 x1))) (- (* (* x4 x2) (* x4 x2)) (* (- (* x4 x2) (- x3 x4)) (- x3 x4))))
* [exit]simplify:  Simplified to (* (+ (* (- (- x3 x4) (- x2 (- x1))) (* (+ (- x3 x4) (- x1)) (- x2 x1))) (* (* x2 x2) (- x2 x1))) (- (* (* x4 x2) (* x4 x2)) (* (- (* x4 x2) (- x3 x4)) (- x3 x4))))
* * * * [misc]progress:  [ 28 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))))))))
* * [misc]simplify:  iters left: 6 (34 enodes)
* * [misc]simplify:  iters left: 5 (81 enodes)
* * [misc]simplify:  iters left: 4 (146 enodes)
* * [misc]simplify:  iters left: 3 (319 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (- x3 x4) (- (- x1) x2)) (* (+ (- x3 x4) (- x1)) x3)) (* x2 (* x2 x3))) (* (- x2 x1) (* (- (- x3 x4) (* x2 x4)) (- (+ x2 x1) (+ (- x3 x4) (* x2 x4)))))) (* (+ (* (* (* x1 x4) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* (* x1 x4) (pow x2 3))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))))
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (- x3 x4) (- (- x1) x2)) (* (+ (- x3 x4) (- x1)) x3)) (* x2 (* x2 x3))) (* (- x2 x1) (* (- (- x3 x4) (* x2 x4)) (- (+ x2 x1) (+ (- x3 x4) (* x2 x4)))))) (* (+ (* (* (* x1 x4) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* (* x1 x4) (pow x2 3))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))))
* [enter]simplify:  Simplifying (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (44 enodes)
* * [misc]simplify:  iters left: 4 (85 enodes)
* * [misc]simplify:  iters left: 3 (176 enodes)
* * [misc]simplify:  iters left: 2 (369 enodes)
* [exit]simplify:  Simplified to (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2)) (* (- x2 x1) (- (- x3 x4) (* x4 x2))))
* [exit]simplify:  Simplified to (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2)) (* (- x2 x1) (- (- x3 x4) (* x4 x2))))
* * * * [misc]progress:  [ 29 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3)))))
* * [misc]simplify:  iters left: 6 (33 enodes)
* * [misc]simplify:  iters left: 5 (106 enodes)
* * [misc]simplify:  iters left: 4 (265 enodes)
* [exit]simplify:  Simplified to (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ (* x2 x4) (- x3 x4)))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))
* [exit]simplify:  Simplified to (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ (* x2 x4) (- x3 x4)))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))
* [enter]simplify:  Simplifying (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (78 enodes)
* * [misc]simplify:  iters left: 4 (227 enodes)
* [exit]simplify:  Simplified to (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)))
* [exit]simplify:  Simplified to (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)))
* * * * [misc]progress:  [ 30 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2)))))))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (90 enodes)
* * [misc]simplify:  iters left: 4 (220 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2)) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (* x1 (* (* (- (+ x3 (* x2 x4)) (- x4 (+ x2 x1))) x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2)) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (* x1 (* (* (- (+ x3 (* x2 x4)) (- x4 (+ x2 x1))) x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))
* [enter]simplify:  Simplifying (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (52 enodes)
* * [misc]simplify:  iters left: 4 (140 enodes)
* * [misc]simplify:  iters left: 3 (370 enodes)
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))))
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))))
* * * * [misc]progress:  [ 31 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3)))))))
* * [misc]simplify:  iters left: 6 (38 enodes)
* * [misc]simplify:  iters left: 5 (109 enodes)
* * [misc]simplify:  iters left: 4 (280 enodes)
* [exit]simplify:  Simplified to (+ (* (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (* (+ (pow x1 3) (pow x2 3)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3))))))
* [exit]simplify:  Simplified to (+ (* (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (* (+ (pow x1 3) (pow x2 3)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3))))))
* [enter]simplify:  Simplifying (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (51 enodes)
* * [misc]simplify:  iters left: 4 (117 enodes)
* * [misc]simplify:  iters left: 3 (219 enodes)
* * [misc]simplify:  iters left: 2 (471 enodes)
* [exit]simplify:  Simplified to (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (+ (* (- x1 x2) x1) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))))
* [exit]simplify:  Simplified to (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (+ (* (- x1 x2) x1) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))))
* * * * [misc]progress:  [ 32 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))))))))
* * [misc]simplify:  iters left: 6 (34 enodes)
* * [misc]simplify:  iters left: 5 (77 enodes)
* * [misc]simplify:  iters left: 4 (165 enodes)
* * [misc]simplify:  iters left: 3 (385 enodes)
* [exit]simplify:  Simplified to (+ (* (* x3 (- (- x2 (- x3 x4)) (- x1))) (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x4 x2) (- x3 x4)) (- (- x3 x4) (* x4 x2))) (+ (* x2 x2) (* x1 (- x1 x2)))))) (* (* (* (* x1 x4) (- (- x3 x4) (* x4 x2))) (+ (* x2 x2) (* x1 (- x1 x2)))) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))))
* [exit]simplify:  Simplified to (+ (* (* x3 (- (- x2 (- x3 x4)) (- x1))) (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x4 x2) (- x3 x4)) (- (- x3 x4) (* x4 x2))) (+ (* x2 x2) (* x1 (- x1 x2)))))) (* (* (* (* x1 x4) (- (- x3 x4) (* x4 x2))) (+ (* x2 x2) (* x1 (- x1 x2)))) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))))
* [enter]simplify:  Simplifying (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (34 enodes)
* * [misc]simplify:  iters left: 4 (64 enodes)
* * [misc]simplify:  iters left: 3 (135 enodes)
* * [misc]simplify:  iters left: 2 (349 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* (- x1 x2) x1) (* x2 x2)) (+ (- x2 x3) (- x4 (- x1)))) (- (- x3 x4) (* x2 x4)))
* [exit]simplify:  Simplified to (* (* (+ (* (- x1 x2) x1) (* x2 x2)) (+ (- x2 x3) (- x4 (- x1)))) (- (- x3 x4) (* x2 x4)))
* * * * [misc]progress:  [ 33 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3)))))))
* * [misc]simplify:  iters left: 6 (34 enodes)
* * [misc]simplify:  iters left: 5 (97 enodes)
* * [misc]simplify:  iters left: 4 (180 enodes)
* * [misc]simplify:  iters left: 3 (370 enodes)
* [exit]simplify:  Simplified to (+ (* (* x3 (+ (- (- x2 x3) (- x1)) x4)) (- (* (* (+ x2 x1) (- x2 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (* (- x3 x4) (- x2 x1)) (* (- x3 x4) (- x3 x4))) (* (* (- x2 x1) (* x4 x2)) (* (* x4 x2) (* x4 x2)))))) (* (+ (* (* (- x3 x4) (- x3 x4)) (- x2 x1)) (* (- (* x4 x2) (- x3 x4)) (* (- x2 x1) (* x4 x2)))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))))
* [exit]simplify:  Simplified to (+ (* (* x3 (+ (- (- x2 x3) (- x1)) x4)) (- (* (* (+ x2 x1) (- x2 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (* (- x3 x4) (- x2 x1)) (* (- x3 x4) (- x3 x4))) (* (* (- x2 x1) (* x4 x2)) (* (* x4 x2) (* x4 x2)))))) (* (+ (* (* (- x3 x4) (- x3 x4)) (- x2 x1)) (* (- (* x4 x2) (- x3 x4)) (* (- x2 x1) (* x4 x2)))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))))
* [enter]simplify:  Simplifying (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (41 enodes)
* * [misc]simplify:  iters left: 4 (71 enodes)
* * [misc]simplify:  iters left: 3 (117 enodes)
* * [misc]simplify:  iters left: 2 (233 enodes)
* * [misc]simplify:  iters left: 1 (429 enodes)
* [exit]simplify:  Simplified to (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (- x2 x1) (+ x4 (- (- x2 x3) (- x1)))))
* [exit]simplify:  Simplified to (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (- x2 x1) (+ x4 (- (- x2 x3) (- x1)))))
* * * * [misc]progress:  [ 34 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))))))))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (63 enodes)
* * [misc]simplify:  iters left: 4 (115 enodes)
* * [misc]simplify:  iters left: 3 (237 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- x2 x1) (- (- x3 x4) (* x4 x2))) (+ x2 (+ (- x3 x4) (- x1)))) (* (- (- x2 (- x3 x4)) (- x1)) (* x1 x4))) (* (* x3 (- (- x2 (- x3 x4)) (- x1))) (* (- (- x3 x4) (* x4 x2)) (* (- x2 x1) (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))))
* [exit]simplify:  Simplified to (+ (* (* (* (- x2 x1) (- (- x3 x4) (* x4 x2))) (+ x2 (+ (- x3 x4) (- x1)))) (* (- (- x2 (- x3 x4)) (- x1)) (* x1 x4))) (* (* x3 (- (- x2 (- x3 x4)) (- x1))) (* (- (- x3 x4) (* x4 x2)) (* (- x2 x1) (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))))
* [enter]simplify:  Simplifying (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (24 enodes)
* * [misc]simplify:  iters left: 4 (34 enodes)
* * [misc]simplify:  iters left: 3 (48 enodes)
* * [misc]simplify:  iters left: 2 (93 enodes)
* * [misc]simplify:  iters left: 1 (178 enodes)
* [exit]simplify:  Simplified to (* (* (- (- x3 x4) (* x2 x4)) (- x2 x1)) (+ (- (- x2 x3) (- x1)) x4))
* [exit]simplify:  Simplified to (* (* (- (- x3 x4) (* x2 x4)) (- x2 x1)) (+ (- (- x2 x3) (- x1)) x4))
* * * * [misc]progress:  [ 35 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3)))))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (89 enodes)
* * [misc]simplify:  iters left: 4 (224 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))) (* (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)) (* x3 (+ (- x2 x3) (- x4 (- x1))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))) (* (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)) (* x3 (+ (- x2 x3) (- x4 (- x1))))))
* [enter]simplify:  Simplifying (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (58 enodes)
* * [misc]simplify:  iters left: 4 (158 enodes)
* * [misc]simplify:  iters left: 3 (318 enodes)
* [exit]simplify:  Simplified to (* (+ (- x2 x3) (- x4 (- x1))) (+ (* (+ x1 x2) (+ (- x3 x4) (* x2 x4))) (+ (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4))) (* (+ x1 x2) (+ x1 x2)))))
* [exit]simplify:  Simplified to (* (+ (- x2 x3) (- x4 (- x1))) (+ (* (+ x1 x2) (+ (- x3 x4) (* x2 x4))) (+ (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4))) (* (+ x1 x2) (+ x1 x2)))))
* * * * [misc]progress:  [ 36 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2)))))))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (72 enodes)
* * [misc]simplify:  iters left: 4 (188 enodes)
* * [misc]simplify:  iters left: 3 (491 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (* x1 x4)) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (* (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (- x2 (- x3 x4)) (- x1)))))
* [exit]simplify:  Simplified to (+ (* (* (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (* x1 x4)) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (* (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (- x2 (- x3 x4)) (- x1)))))
* [enter]simplify:  Simplifying (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (32 enodes)
* * [misc]simplify:  iters left: 4 (65 enodes)
* * [misc]simplify:  iters left: 3 (118 enodes)
* * [misc]simplify:  iters left: 2 (315 enodes)
* [exit]simplify:  Simplified to (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ (- x3 x4) (+ x1 x2)) (* x2 x4)))
* [exit]simplify:  Simplified to (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ (- x3 x4) (+ x1 x2)) (* x2 x4)))
* * * * [misc]progress:  [ 37 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3))
* * [misc]simplify:  iters left: 6 (19 enodes)
* * [misc]simplify:  iters left: 5 (50 enodes)
* * [misc]simplify:  iters left: 4 (110 enodes)
* * [misc]simplify:  iters left: 3 (264 enodes)
* [exit]simplify:  Simplified to (+ (pow (* (- (+ (+ x4 x2) (- x1 x3)) (* x2 x4)) x3) 3) (pow (* (* x1 x4) (+ (- x1) (- (+ x2 x3) x4))) 3))
* [exit]simplify:  Simplified to (+ (pow (* (- (+ (+ x4 x2) (- x1 x3)) (* x2 x4)) x3) 3) (pow (* (* x1 x4) (+ (- x1) (- (+ x2 x3) x4))) 3))
* [enter]simplify:  Simplifying (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (49 enodes)
* * [misc]simplify:  iters left: 4 (120 enodes)
* * [misc]simplify:  iters left: 3 (292 enodes)
* [exit]simplify:  Simplified to (- (* (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4))) (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)))) (* (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))) (- (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4))) (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))))))
* [exit]simplify:  Simplified to (- (* (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4))) (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)))) (* (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))) (- (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4))) (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))))))
* * * * [misc]progress:  [ 38 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (* 1 (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* * * * [misc]progress:  [ 39 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (18 enodes)
* * [misc]simplify:  iters left: 5 (43 enodes)
* * [misc]simplify:  iters left: 4 (101 enodes)
* * [misc]simplify:  iters left: 3 (251 enodes)
* [exit]simplify:  Simplified to (- (* (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4)))) (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4))))) (* (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2))) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))))
* [exit]simplify:  Simplified to (- (* (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4)))) (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4))))) (* (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2))) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))))
* [enter]simplify:  Simplifying (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))
* * [misc]simplify:  iters left: 6 (16 enodes)
* * [misc]simplify:  iters left: 5 (34 enodes)
* * [misc]simplify:  iters left: 4 (67 enodes)
* * [misc]simplify:  iters left: 3 (124 enodes)
* * [misc]simplify:  iters left: 2 (218 enodes)
* * [misc]simplify:  iters left: 1 (301 enodes)
* [exit]simplify:  Simplified to (- (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (* (+ (+ x4 x2) (- (- x1 x3) (* x2 x4))) x3))
* [exit]simplify:  Simplified to (- (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (* (+ (+ x4 x2) (- (- x1 x3) (* x2 x4))) x3))
* * * * [misc]progress:  [ 40 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (+ x2 x1))) (* x3 (- (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (+ x2 x1)))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (30 enodes)
* * [misc]simplify:  iters left: 4 (45 enodes)
* * [misc]simplify:  iters left: 3 (82 enodes)
* * [misc]simplify:  iters left: 2 (137 enodes)
* * [misc]simplify:  iters left: 1 (164 enodes)
* [exit]simplify:  Simplified to (+ (* (+ x1 x2) x3) (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)))
* [exit]simplify:  Simplified to (+ (* (+ x1 x2) x3) (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)))
* * * * [misc]progress:  [ 41 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 x2)) (* x3 (- x1 (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 x2))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (68 enodes)
* * [misc]simplify:  iters left: 2 (117 enodes)
* * [misc]simplify:  iters left: 1 (141 enodes)
* [exit]simplify:  Simplified to (+ (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4))) (* x3 x2))
* [exit]simplify:  Simplified to (+ (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4))) (* x3 x2))
* * * * [misc]progress:  [ 42 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) x3))) (* x3 (- x4 (* x4 x2)))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) x3)))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (47 enodes)
* * [misc]simplify:  iters left: 3 (85 enodes)
* * [misc]simplify:  iters left: 2 (138 enodes)
* * [misc]simplify:  iters left: 1 (168 enodes)
* [exit]simplify:  Simplified to (+ (* x3 (- x1 (- x3 x2))) (* (* x1 x4) (- (+ (- x1) (+ x2 x3)) x4)))
* [exit]simplify:  Simplified to (+ (* x3 (- x1 (- x3 x2))) (* (* x1 x4) (- (+ (- x1) (+ x2 x3)) x4)))
* * * * [misc]progress:  [ 43 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 x1) x3)) (* (- (+ (- x3 x4) (* x4 x2))) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 x1) x3))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (24 enodes)
* * [misc]simplify:  iters left: 4 (45 enodes)
* * [misc]simplify:  iters left: 3 (86 enodes)
* * [misc]simplify:  iters left: 2 (140 enodes)
* * [misc]simplify:  iters left: 1 (168 enodes)
* [exit]simplify:  Simplified to (+ (* (+ x1 x2) x3) (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))))
* [exit]simplify:  Simplified to (+ (* (+ x1 x2) x3) (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))))
* * * * [misc]progress:  [ 44 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x2 x3)) (* (- x1 (+ (- x3 x4) (* x4 x2))) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x2 x3))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (68 enodes)
* * [misc]simplify:  iters left: 2 (117 enodes)
* * [misc]simplify:  iters left: 1 (141 enodes)
* [exit]simplify:  Simplified to (+ (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4))) (* x3 x2))
* [exit]simplify:  Simplified to (+ (* (* x1 x4) (+ (+ x2 (- x1)) (- x3 x4))) (* x3 x2))
* * * * [misc]progress:  [ 45 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (- (+ x2 x1) x3) x3)) (* (- x4 (* x4 x2)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (- (+ x2 x1) x3) x3))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (47 enodes)
* * [misc]simplify:  iters left: 3 (85 enodes)
* * [misc]simplify:  iters left: 2 (138 enodes)
* * [misc]simplify:  iters left: 1 (168 enodes)
* [exit]simplify:  Simplified to (+ (* x3 (- x1 (- x3 x2))) (* (* x1 x4) (- (+ (- x1) (+ x2 x3)) x4)))
* [exit]simplify:  Simplified to (+ (* x3 (- x1 (- x3 x2))) (* (* x1 x4) (- (+ (- x1) (+ x2 x3)) x4)))
* * * * [misc]progress:  [ 46 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* * * * [misc]progress:  [ 47 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 1)) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* * * * [misc]progress:  [ 48 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (exp (log (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (log (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (24 enodes)
* * [misc]simplify:  iters left: 4 (45 enodes)
* * [misc]simplify:  iters left: 3 (71 enodes)
* * [misc]simplify:  iters left: 2 (112 enodes)
* * [misc]simplify:  iters left: 1 (164 enodes)
* [exit]simplify:  Simplified to (log (* x3 (+ (- x2 x3) (- (+ x4 x1) (* x2 x4)))))
* [exit]simplify:  Simplified to (log (* x3 (+ (- x2 x3) (- (+ x4 x1) (* x2 x4)))))
* * * * [misc]progress:  [ 49 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (log (exp (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (exp (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (75 enodes)
* * [misc]simplify:  iters left: 2 (131 enodes)
* * [misc]simplify:  iters left: 1 (233 enodes)
* [exit]simplify:  Simplified to (pow (exp x3) (- (- (+ x2 x4) (- x3 x1)) (* x2 x4)))
* [exit]simplify:  Simplified to (pow (exp x3) (- (- (+ x2 x4) (- x3 x1)) (* x2 x4)))
* * * * [misc]progress:  [ 50 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (* (cbrt (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (cbrt (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (cbrt (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (cbrt (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (cbrt (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (42 enodes)
* * [misc]simplify:  iters left: 3 (68 enodes)
* * [misc]simplify:  iters left: 2 (109 enodes)
* * [misc]simplify:  iters left: 1 (160 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* x3 (+ (- x1 x3) (- (+ x2 x4) (* x2 x4))))) (cbrt (* x3 (+ (- x1 x3) (- (+ x2 x4) (* x2 x4))))))
* [exit]simplify:  Simplified to (* (cbrt (* x3 (+ (- x1 x3) (- (+ x2 x4) (* x2 x4))))) (cbrt (* x3 (+ (- x1 x3) (- (+ x2 x4) (* x2 x4))))))
* [enter]simplify:  Simplifying (cbrt (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (67 enodes)
* * [misc]simplify:  iters left: 2 (108 enodes)
* * [misc]simplify:  iters left: 1 (157 enodes)
* [exit]simplify:  Simplified to (cbrt (* x3 (+ (- (+ x2 x4) (* x2 x4)) (- x1 x3))))
* [exit]simplify:  Simplified to (cbrt (* x3 (+ (- (+ x2 x4) (* x2 x4)) (- x1 x3))))
* * * * [misc]progress:  [ 51 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (cbrt (* (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (26 enodes)
* * [misc]simplify:  iters left: 4 (61 enodes)
* * [misc]simplify:  iters left: 3 (124 enodes)
* * [misc]simplify:  iters left: 2 (293 enodes)
* [exit]simplify:  Simplified to (pow (* x3 (- (- (+ x2 x1) (* x2 x4)) (- x3 x4))) 3)
* [exit]simplify:  Simplified to (pow (* x3 (- (- (+ x2 x1) (* x2 x4)) (- x3 x4))) 3)
* * * * [misc]progress:  [ 52 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (sqrt (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (sqrt (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (sqrt (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (67 enodes)
* * [misc]simplify:  iters left: 2 (108 enodes)
* * [misc]simplify:  iters left: 1 (157 enodes)
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- (+ x2 x4) (* x2 x4)) (- x1 x3))))
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- (+ x2 x4) (* x2 x4)) (- x1 x3))))
* [enter]simplify:  Simplifying (sqrt (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (67 enodes)
* * [misc]simplify:  iters left: 2 (108 enodes)
* * [misc]simplify:  iters left: 1 (157 enodes)
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- (+ x2 x4) (* x2 x4)) (- x1 x3))))
* [exit]simplify:  Simplified to (sqrt (* x3 (+ (- (+ x2 x4) (* x2 x4)) (- x1 x3))))
* * * * [misc]progress:  [ 53 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* 1 (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* * * * [misc]progress:  [ 54 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (+ (* x3 (+ x2 x1)) (* x3 (- (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 (+ x2 x1))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (13 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* [exit]simplify:  Simplified to (* (+ x2 x1) x3)
* [exit]simplify:  Simplified to (* (+ x2 x1) x3)
* [enter]simplify:  Simplifying (* x3 (- (+ (- x3 x4) (* x4 x2))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (38 enodes)
* * [misc]simplify:  iters left: 3 (72 enodes)
* * [misc]simplify:  iters left: 2 (91 enodes)
* * [misc]simplify:  iters left: 1 (95 enodes)
* [exit]simplify:  Simplified to (* (- x3) (+ (* x2 x4) (- x3 x4)))
* [exit]simplify:  Simplified to (* (- x3) (+ (* x2 x4) (- x3 x4)))
* * * * [misc]progress:  [ 55 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (+ (* x3 x2) (* x3 (- x1 (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 x2)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (* x2 x3)
* [exit]simplify:  Simplified to (* x2 x3)
* [enter]simplify:  Simplifying (* x3 (- x1 (+ (- x3 x4) (* x4 x2))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (20 enodes)
* * [misc]simplify:  iters left: 3 (25 enodes)
* * [misc]simplify:  iters left: 2 (44 enodes)
* * [misc]simplify:  iters left: 1 (52 enodes)
* [exit]simplify:  Simplified to (* (- x1 (+ (* x4 x2) (- x3 x4))) x3)
* [exit]simplify:  Simplified to (* (- x1 (+ (* x4 x2) (- x3 x4))) x3)
* * * * [misc]progress:  [ 56 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (+ (* x3 (- (+ x2 x1) x3)) (* x3 (- x4 (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 (- (+ x2 x1) x3))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* * [misc]simplify:  iters left: 2 (26 enodes)
* * [misc]simplify:  iters left: 1 (32 enodes)
* [exit]simplify:  Simplified to (* x3 (- x2 (- x3 x1)))
* [exit]simplify:  Simplified to (* x3 (- x2 (- x3 x1)))
* [enter]simplify:  Simplifying (* x3 (- x4 (* x4 x2)))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (* x3 (- x4 (* x2 x4)))
* [exit]simplify:  Simplified to (* x3 (- x4 (* x2 x4)))
* * * * [misc]progress:  [ 57 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (+ (* (+ x2 x1) x3) (* (- (+ (- x3 x4) (* x4 x2))) x3))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (+ x2 x1) x3)
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* [exit]simplify:  Simplified to (* (+ x1 x2) x3)
* [exit]simplify:  Simplified to (* (+ x1 x2) x3)
* [enter]simplify:  Simplifying (* (- (+ (- x3 x4) (* x4 x2))) x3)
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (36 enodes)
* * [misc]simplify:  iters left: 3 (68 enodes)
* * [misc]simplify:  iters left: 2 (84 enodes)
* * [misc]simplify:  iters left: 1 (93 enodes)
* [exit]simplify:  Simplified to (* (+ (* x2 x4) (- x3 x4)) (- x3))
* [exit]simplify:  Simplified to (* (+ (* x2 x4) (- x3 x4)) (- x3))
* * * * [misc]progress:  [ 58 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (+ (* x2 x3) (* (- x1 (+ (- x3 x4) (* x4 x2))) x3))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x2 x3)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (* x3 x2)
* [exit]simplify:  Simplified to (* x3 x2)
* [enter]simplify:  Simplifying (* (- x1 (+ (- x3 x4) (* x4 x2))) x3)
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (20 enodes)
* * [misc]simplify:  iters left: 3 (25 enodes)
* * [misc]simplify:  iters left: 2 (44 enodes)
* * [misc]simplify:  iters left: 1 (52 enodes)
* [exit]simplify:  Simplified to (* (- x1 (+ (* x4 x2) (- x3 x4))) x3)
* [exit]simplify:  Simplified to (* (- x1 (+ (* x4 x2) (- x3 x4))) x3)
* * * * [misc]progress:  [ 59 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (+ (* (- (+ x2 x1) x3) x3) (* (- x4 (* x4 x2)) x3))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (- (+ x2 x1) x3) x3)
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* * [misc]simplify:  iters left: 2 (26 enodes)
* * [misc]simplify:  iters left: 1 (32 enodes)
* [exit]simplify:  Simplified to (* x3 (+ (- x1 x3) x2))
* [exit]simplify:  Simplified to (* x3 (+ (- x1 x3) x2))
* [enter]simplify:  Simplifying (* (- x4 (* x4 x2)) x3)
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (* (- x4 (* x2 x4)) x3)
* [exit]simplify:  Simplified to (* (- x4 (* x2 x4)) x3)
* * * * [misc]progress:  [ 60 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (* x3 (* (cbrt (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (cbrt (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (cbrt (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 (* (cbrt (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (cbrt (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (40 enodes)
* * [misc]simplify:  iters left: 3 (65 enodes)
* * [misc]simplify:  iters left: 2 (90 enodes)
* * [misc]simplify:  iters left: 1 (122 enodes)
* [exit]simplify:  Simplified to (* (* (cbrt (+ (+ x2 x4) (- (- x1 x3) (* x2 x4)))) x3) (cbrt (+ (+ x2 x4) (- (- x1 x3) (* x2 x4)))))
* [exit]simplify:  Simplified to (* (* (cbrt (+ (+ x2 x4) (- (- x1 x3) (* x2 x4)))) x3) (cbrt (+ (+ x2 x4) (- (- x1 x3) (* x2 x4)))))
* * * * [misc]progress:  [ 61 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (* x3 (sqrt (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (sqrt (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 (sqrt (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (60 enodes)
* * [misc]simplify:  iters left: 2 (85 enodes)
* * [misc]simplify:  iters left: 1 (117 enodes)
* [exit]simplify:  Simplified to (* (sqrt (+ (- (+ x2 x4) (* x2 x4)) (- x1 x3))) x3)
* [exit]simplify:  Simplified to (* (sqrt (+ (- (+ x2 x4) (* x2 x4)) (- x1 x3))) x3)
* * * * [misc]progress:  [ 62 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (* x3 1) (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 1)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to x3
* [exit]simplify:  Simplified to x3
* * * * [misc]progress:  [ 63 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (* x3 (+ (sqrt (+ x2 x1)) (sqrt (+ (- x3 x4) (* x4 x2))))) (- (sqrt (+ x2 x1)) (sqrt (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 (+ (sqrt (+ x2 x1)) (sqrt (+ (- x3 x4) (* x4 x2)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (29 enodes)
* * [misc]simplify:  iters left: 3 (30 enodes)
* [exit]simplify:  Simplified to (* x3 (+ (sqrt (+ (- x3 x4) (* x4 x2))) (sqrt (+ x2 x1))))
* [exit]simplify:  Simplified to (* x3 (+ (sqrt (+ (- x3 x4) (* x4 x2))) (sqrt (+ x2 x1))))
* * * * [misc]progress:  [ 64 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (* x3 1) (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 1)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to x3
* [exit]simplify:  Simplified to x3
* * * * [misc]progress:  [ 65 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (/ (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3)))))
* * [misc]simplify:  iters left: 6 (27 enodes)
* * [misc]simplify:  iters left: 5 (70 enodes)
* * [misc]simplify:  iters left: 4 (159 enodes)
* * [misc]simplify:  iters left: 3 (343 enodes)
* [exit]simplify:  Simplified to (* x3 (- (* (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))) (+ (pow x1 3) (pow x2 3))) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3)))))
* [exit]simplify:  Simplified to (* x3 (- (* (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))) (+ (pow x1 3) (pow x2 3))) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3)))))
* * * * [misc]progress:  [ 66 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (/ (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (44 enodes)
* * [misc]simplify:  iters left: 4 (80 enodes)
* * [misc]simplify:  iters left: 3 (160 enodes)
* * [misc]simplify:  iters left: 2 (394 enodes)
* [exit]simplify:  Simplified to (* (* x3 (- (- x3 x4) (* x4 x2))) (- (+ (pow x1 3) (pow x2 3)) (* (+ (* x4 x2) (- x3 x4)) (- (* x1 x1) (* x2 (- x1 x2))))))
* [exit]simplify:  Simplified to (* (* x3 (- (- x3 x4) (* x4 x2))) (- (+ (pow x1 3) (pow x2 3)) (* (+ (* x4 x2) (- x3 x4)) (- (* x1 x1) (* x2 (- x1 x2))))))
* * * * [misc]progress:  [ 67 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (/ (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3)))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (58 enodes)
* * [misc]simplify:  iters left: 4 (105 enodes)
* * [misc]simplify:  iters left: 3 (211 enodes)
* * [misc]simplify:  iters left: 2 (413 enodes)
* [exit]simplify:  Simplified to (* (- (+ (* (- x3 x4) (* (- x3 x4) (+ x1 x2))) (* (* (+ x1 x2) (* x4 x2)) (- (* x4 x2) (- x3 x4)))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3))) (* (- x2 x1) x3))
* [exit]simplify:  Simplified to (* (- (+ (* (- x3 x4) (* (- x3 x4) (+ x1 x2))) (* (* (+ x1 x2) (* x4 x2)) (- (* x4 x2) (- x3 x4)))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3))) (* (- x2 x1) x3))
* * * * [misc]progress:  [ 68 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (/ (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))))))
* * [misc]simplify:  iters left: 6 (18 enodes)
* * [misc]simplify:  iters left: 5 (30 enodes)
* * [misc]simplify:  iters left: 4 (50 enodes)
* * [misc]simplify:  iters left: 3 (105 enodes)
* * [misc]simplify:  iters left: 2 (236 enodes)
* * [misc]simplify:  iters left: 1 (336 enodes)
* [exit]simplify:  Simplified to (* (* (+ (- (+ x1 x2) x3) (- x4 (* x4 x2))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) x3)
* [exit]simplify:  Simplified to (* (* (+ (- (+ x1 x2) x3) (- x4 (* x4 x2))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) x3)
* * * * [misc]progress:  [ 69 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (/ (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3)))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (124 enodes)
* * [misc]simplify:  iters left: 2 (363 enodes)
* [exit]simplify:  Simplified to (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)))
* [exit]simplify:  Simplified to (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)))
* * * * [misc]progress:  [ 70 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (/ (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (33 enodes)
* * [misc]simplify:  iters left: 4 (84 enodes)
* * [misc]simplify:  iters left: 3 (214 enodes)
* [exit]simplify:  Simplified to (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2)))))
* [exit]simplify:  Simplified to (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2)))))
* * * * [misc]progress:  [ 71 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* * * * [misc]progress:  [ 72 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (log (* (* (exp (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (exp (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (exp (* x2 (+ (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (* (exp (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (exp (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (exp (* x2 (+ (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (65 enodes)
* * [misc]simplify:  iters left: 4 (132 enodes)
* * [misc]simplify:  iters left: 3 (254 enodes)
* * [misc]simplify:  iters left: 2 (475 enodes)
* [exit]simplify:  Simplified to (* (exp (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1))))) (* (exp (* (+ (+ x3 x1) (- x4 x2)) x2)) (pow (exp x3) (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))))
* [exit]simplify:  Simplified to (* (exp (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1))))) (* (exp (* (+ (+ x3 x1) (- x4 x2)) x2)) (pow (exp x3) (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))))
* * * * [misc]progress:  [ 73 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (log (* (exp (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (exp (* x2 (+ (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (exp (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (exp (* x2 (+ (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (62 enodes)
* * [misc]simplify:  iters left: 4 (132 enodes)
* * [misc]simplify:  iters left: 3 (268 enodes)
* [exit]simplify:  Simplified to (* (exp (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1)))) (* (pow (exp x3) (- (+ (+ x1 x4) (- x2 x3)) (* x2 x4))) (pow (exp x2) (+ (- x1 x2) (+ x3 x4)))))
* [exit]simplify:  Simplified to (* (exp (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1)))) (* (pow (exp x3) (- (+ (+ x1 x4) (- x2 x3)) (* x2 x4))) (pow (exp x2) (+ (- x1 x2) (+ x3 x4)))))
* * * * [misc]progress:  [ 74 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (pow (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) 1) (+ (* (+ x2 x3) x1) x4)))>
* * * * [misc]progress:  [ 75 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (exp (log (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (log (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (55 enodes)
* * [misc]simplify:  iters left: 4 (107 enodes)
* * [misc]simplify:  iters left: 3 (183 enodes)
* * [misc]simplify:  iters left: 2 (286 enodes)
* * [misc]simplify:  iters left: 1 (384 enodes)
* [exit]simplify:  Simplified to (log (+ (+ (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1)))) (* (+ (- (+ x4 x2) (* x2 x4)) (- x1 x3)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* [exit]simplify:  Simplified to (log (+ (+ (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1)))) (* (+ (- (+ x4 x2) (* x2 x4)) (- x1 x3)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* * * * [misc]progress:  [ 76 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (log (exp (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (exp (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (58 enodes)
* * [misc]simplify:  iters left: 4 (125 enodes)
* * [misc]simplify:  iters left: 3 (249 enodes)
* * [misc]simplify:  iters left: 2 (487 enodes)
* [exit]simplify:  Simplified to (* (pow (exp x3) (- (+ (- x1 x3) (+ x4 x2)) (* x2 x4))) (* (exp (* x2 (+ (+ x3 x1) (- x4 x2)))) (pow (exp (* x1 x4)) (+ (- x1) (- x3 (- x4 x2))))))
* [exit]simplify:  Simplified to (* (pow (exp x3) (- (+ (- x1 x3) (+ x4 x2)) (* x2 x4))) (* (exp (* x2 (+ (+ x3 x1) (- x4 x2)))) (pow (exp (* x1 x4)) (+ (- x1) (- x3 (- x4 x2))))))
* * * * [misc]progress:  [ 77 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (* (* (cbrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2))))) (cbrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))) (cbrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (cbrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2))))) (cbrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (56 enodes)
* * [misc]simplify:  iters left: 4 (108 enodes)
* * [misc]simplify:  iters left: 3 (184 enodes)
* * [misc]simplify:  iters left: 2 (287 enodes)
* * [misc]simplify:  iters left: 1 (383 enodes)
* [exit]simplify:  Simplified to (* (cbrt (+ (+ (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4)))) (* (+ (- x2 (* x2 x4)) (+ x4 (- x1 x3))) x3)) (* x2 (- (+ x3 x1) (- x2 x4))))) (cbrt (+ (+ (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4)))) (* (+ (- x2 (* x2 x4)) (+ x4 (- x1 x3))) x3)) (* x2 (- (+ x3 x1) (- x2 x4))))))
* [exit]simplify:  Simplified to (* (cbrt (+ (+ (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4)))) (* (+ (- x2 (* x2 x4)) (+ x4 (- x1 x3))) x3)) (* x2 (- (+ x3 x1) (- x2 x4))))) (cbrt (+ (+ (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4)))) (* (+ (- x2 (* x2 x4)) (+ x4 (- x1 x3))) x3)) (* x2 (- (+ x3 x1) (- x2 x4))))))
* [enter]simplify:  Simplifying (cbrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (55 enodes)
* * [misc]simplify:  iters left: 4 (107 enodes)
* * [misc]simplify:  iters left: 3 (183 enodes)
* * [misc]simplify:  iters left: 2 (286 enodes)
* * [misc]simplify:  iters left: 1 (384 enodes)
* [exit]simplify:  Simplified to (cbrt (+ (+ (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1)))) (* (+ (- (+ x4 x2) (* x2 x4)) (- x1 x3)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* [exit]simplify:  Simplified to (cbrt (+ (+ (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1)))) (* (+ (- (+ x4 x2) (* x2 x4)) (- x1 x3)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* * * * [misc]progress:  [ 78 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (cbrt (* (* (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2))))) (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (* (* (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2))))) (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (69 enodes)
* * [misc]simplify:  iters left: 4 (178 enodes)
* [exit]simplify:  Simplified to (pow (+ (+ (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))) (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))) 3)
* [exit]simplify:  Simplified to (pow (+ (+ (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))) (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))) 3)
* * * * [misc]progress:  [ 79 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (* (sqrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2))))) (sqrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (sqrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (55 enodes)
* * [misc]simplify:  iters left: 4 (107 enodes)
* * [misc]simplify:  iters left: 3 (183 enodes)
* * [misc]simplify:  iters left: 2 (286 enodes)
* * [misc]simplify:  iters left: 1 (384 enodes)
* [exit]simplify:  Simplified to (sqrt (+ (+ (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1)))) (* (+ (- (+ x4 x2) (* x2 x4)) (- x1 x3)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* [exit]simplify:  Simplified to (sqrt (+ (+ (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1)))) (* (+ (- (+ x4 x2) (* x2 x4)) (- x1 x3)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* [enter]simplify:  Simplifying (sqrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (55 enodes)
* * [misc]simplify:  iters left: 4 (107 enodes)
* * [misc]simplify:  iters left: 3 (183 enodes)
* * [misc]simplify:  iters left: 2 (286 enodes)
* * [misc]simplify:  iters left: 1 (384 enodes)
* [exit]simplify:  Simplified to (sqrt (+ (+ (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1)))) (* (+ (- (+ x4 x2) (* x2 x4)) (- x1 x3)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* [exit]simplify:  Simplified to (sqrt (+ (+ (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1)))) (* (+ (- (+ x4 x2) (* x2 x4)) (- x1 x3)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* * * * [misc]progress:  [ 80 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (62 enodes)
* * [misc]simplify:  iters left: 5 (188 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3)))) (* x3 (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))) (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (+ (* x2 x2) (* x1 (- x1 x2))))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))))) (* (+ (* x3 x3) (* (- x4 x3) x4)) (+ (* x1 x1) (* (+ x2 x1) x2)))) (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (+ (* x2 x2) (* x1 (- x1 x2)))) (+ (* (* x2 (+ (pow x4 3) (pow x3 3))) (+ (* x1 x1) (* (+ x2 x1) x2))) (* (* x2 (- (pow x1 3) (pow x2 3))) (+ (* x3 x3) (* (- x4 x3) x4)))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3)))) (* x3 (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))) (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (+ (* x2 x2) (* x1 (- x1 x2))))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))))) (* (+ (* x3 x3) (* (- x4 x3) x4)) (+ (* x1 x1) (* (+ x2 x1) x2)))) (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (+ (* x2 x2) (* x1 (- x1 x2)))) (+ (* (* x2 (+ (pow x4 3) (pow x3 3))) (+ (* x1 x1) (* (+ x2 x1) x2))) (* (* x2 (- (pow x1 3) (pow x2 3))) (+ (* x3 x3) (* (- x4 x3) x4)))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (34 enodes)
* * [misc]simplify:  iters left: 5 (99 enodes)
* * [misc]simplify:  iters left: 4 (261 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ (* x1 x1) (* x2 (+ x2 x1)))) (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))))
* [exit]simplify:  Simplified to (* (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ (* x1 x1) (* x2 (+ x2 x1)))) (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))))
* * * * [misc]progress:  [ 81 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (60 enodes)
* * [misc]simplify:  iters left: 5 (184 enodes)
* * [misc]simplify:  iters left: 4 (483 enodes)
* [exit]simplify:  Simplified to (+ (* (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))) (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (* (- (* x1 x1) (* x2 (- x1 x2))) x2))) (+ (* (- (* x4 x4) (* x3 (- x4 x3))) (* (+ x2 x1) (- x1 x2))) (* (+ (pow x4 3) (pow x3 3)) (+ x2 x1)))) (* (+ (* (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3)))) (* x3 (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))))) (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (* (* (* x1 x4) (- (* x1 x1) (* x2 (- x1 x2)))) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (- (* x4 x4) (* x3 (- x4 x3))) (+ x2 x1))))
* [exit]simplify:  Simplified to (+ (* (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))) (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (* (- (* x1 x1) (* x2 (- x1 x2))) x2))) (+ (* (- (* x4 x4) (* x3 (- x4 x3))) (* (+ x2 x1) (- x1 x2))) (* (+ (pow x4 3) (pow x3 3)) (+ x2 x1)))) (* (+ (* (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3)))) (* x3 (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))))) (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (* (* (* x1 x4) (- (* x1 x1) (* x2 (- x1 x2)))) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (- (* x4 x4) (* x3 (- x4 x3))) (+ x2 x1))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (32 enodes)
* * [misc]simplify:  iters left: 5 (94 enodes)
* * [misc]simplify:  iters left: 4 (252 enodes)
* [exit]simplify:  Simplified to (* (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))) (* (+ x2 x1) (- (* x4 x4) (* x3 (- x4 x3)))))
* [exit]simplify:  Simplified to (* (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))) (* (+ x2 x1) (- (* x4 x4) (* x3 (- x4 x3)))))
* * * * [misc]progress:  [ 82 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (57 enodes)
* * [misc]simplify:  iters left: 5 (175 enodes)
* * [misc]simplify:  iters left: 4 (448 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (+ (* x2 x2) (* (- x1 x2) x1)) x2)) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1))))) (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x2 (+ x2 x1)) (* x1 x1))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))) (* (* (- x3 x4) (+ (* x2 (+ x2 x1)) (* x1 x1))) (+ (* (* x3 (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1))))) (- (* (+ (pow x2 3) (pow x1 3)) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3))))) (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (+ (* x2 x2) (* (- x1 x2) x1))))))))
* [exit]simplify:  Simplified to (+ (* (* (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (+ (* x2 x2) (* (- x1 x2) x1)) x2)) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1))))) (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x2 (+ x2 x1)) (* x1 x1))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))) (* (* (- x3 x4) (+ (* x2 (+ x2 x1)) (* x1 x1))) (+ (* (* x3 (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1))))) (- (* (+ (pow x2 3) (pow x1 3)) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3))))) (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (+ (* x2 x2) (* (- x1 x2) x1))))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (88 enodes)
* * [misc]simplify:  iters left: 4 (218 enodes)
* * [misc]simplify:  iters left: 3 (482 enodes)
* [exit]simplify:  Simplified to (* (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (- (- x1) (- x2 (- x3 x4))))) (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- (* x4 x2) (- x3 x4)) (- x3 x4))))) (+ (* x1 x1) (* x2 (+ x2 x1))))
* [exit]simplify:  Simplified to (* (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (- (- x1) (- x2 (- x3 x4))))) (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- (* x4 x2) (- x3 x4)) (- x3 x4))))) (+ (* x1 x1) (* x2 (+ x2 x1))))
* * * * [misc]progress:  [ 83 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (55 enodes)
* * [misc]simplify:  iters left: 5 (169 enodes)
* * [misc]simplify:  iters left: 4 (419 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (* (+ (* x2 x2) (* x1 (- x1 x2))) x2)) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1))))) (* (- x3 x4) (+ (* (+ x2 x1) (+ x4 x3)) (* (+ x2 x1) (- x1 x2))))) (* (+ (* (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3)))) (* x3 (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))) (* (* (* x1 (+ (* x2 x2) (* x1 (- x1 x2)))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) x4))) (* (+ x2 x1) (- x3 x4))))
* [exit]simplify:  Simplified to (+ (* (* (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (* (+ (* x2 x2) (* x1 (- x1 x2))) x2)) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1))))) (* (- x3 x4) (+ (* (+ x2 x1) (+ x4 x3)) (* (+ x2 x1) (- x1 x2))))) (* (+ (* (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3)))) (* x3 (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))) (* (* (* x1 (+ (* x2 x2) (* x1 (- x1 x2)))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) x4))) (* (+ x2 x1) (- x3 x4))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (27 enodes)
* * [misc]simplify:  iters left: 5 (81 enodes)
* * [misc]simplify:  iters left: 4 (208 enodes)
* * [misc]simplify:  iters left: 3 (481 enodes)
* [exit]simplify:  Simplified to (* (+ (* (+ (- x3 x4) (- (- x1) x2)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (* (+ x2 x1) (- x3 x4)) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))))))
* [exit]simplify:  Simplified to (* (+ (* (+ (- x3 x4) (- (- x1) x2)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (* (+ x2 x1) (- x3 x4)) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))))))
* * * * [misc]progress:  [ 84 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (56 enodes)
* * [misc]simplify:  iters left: 5 (174 enodes)
* * [misc]simplify:  iters left: 4 (492 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (+ (* (* x2 (- x1 x2)) (* (- x1 x2) (- x1 x2))) (* (* (+ x4 x3) x2) (* (+ x4 x3) (+ x4 x3))))) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (- (* x1 x1) (* x2 (- x1 x2))))))) (* (* (* x3 (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1))))) (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3))))) (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2)))))
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (+ (* (* x2 (- x1 x2)) (* (- x1 x2) (- x1 x2))) (* (* (+ x4 x3) x2) (* (+ x4 x3) (+ x4 x3))))) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (- (* x1 x1) (* x2 (- x1 x2))))))) (* (* (* x3 (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1))))) (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3))))) (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2)))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (32 enodes)
* * [misc]simplify:  iters left: 5 (97 enodes)
* * [misc]simplify:  iters left: 4 (255 enodes)
* [exit]simplify:  Simplified to (* (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x3 x4) x2) (- x1)))) (+ (* (- x1 x2) (- (- x1 x2) (+ x3 x4))) (* (+ x3 x4) (+ x3 x4)))))
* [exit]simplify:  Simplified to (* (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x3 x4) x2) (- x1)))) (+ (* (- x1 x2) (- (- x1 x2) (+ x3 x4))) (* (+ x3 x4) (+ x3 x4)))))
* * * * [misc]progress:  [ 85 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (- (+ x3 x4) (- x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (- (+ x3 x4) (- x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (52 enodes)
* * [misc]simplify:  iters left: 5 (153 enodes)
* * [misc]simplify:  iters left: 4 (422 enodes)
* [exit]simplify:  Simplified to (+ (* (- (+ x4 x3) (- x1 x2)) (+ (* (* x3 (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x1) (- (- x3 x4) x2))))) (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3))))) (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) x4) (* (* x1 (- (* x1 x1) (* x2 (- x1 x2)))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))))))) (* (* (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (* (- (* x1 x1) (* x2 (- x1 x2))) x2)) (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x1) (- (- x3 x4) x2))))) (- (* (+ x4 x3) (+ x4 x3)) (* (- x1 x2) (- x1 x2)))))
* [exit]simplify:  Simplified to (+ (* (- (+ x4 x3) (- x1 x2)) (+ (* (* x3 (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x1) (- (- x3 x4) x2))))) (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3))))) (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) x4) (* (* x1 (- (* x1 x1) (* x2 (- x1 x2)))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))))))) (* (* (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (* (- (* x1 x1) (* x2 (- x1 x2))) x2)) (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x1) (- (- x3 x4) x2))))) (- (* (+ x4 x3) (+ x4 x3)) (* (- x1 x2) (- x1 x2)))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (79 enodes)
* * [misc]simplify:  iters left: 4 (203 enodes)
* [exit]simplify:  Simplified to (* (- (+ x3 x4) (- x1 x2)) (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2)) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))))
* [exit]simplify:  Simplified to (* (- (+ x3 x4) (- x1 x2)) (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2)) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))))
* * * * [misc]progress:  [ 86 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (58 enodes)
* * [misc]simplify:  iters left: 5 (157 enodes)
* * [misc]simplify:  iters left: 4 (402 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (* x3 x3) (* (- x4 x3) x4)) (+ (* x1 x1) (* x2 (+ x2 x1)))) (+ (* (* (* (* x1 x4) (- (* x1 x1) (* x2 (- x1 x2)))) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (- (- x3 x4) (* x2 x4))) (* (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x2 x4) (- x3 x4)) (- (- x3 x4) (* x2 x4))) (- (* x1 x1) (* x2 (- x1 x2))))) (* x3 (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))))) (* (* (* (- (* x1 x1) (* x2 (- x1 x2))) (* x2 (- (- x3 x4) (* x2 x4)))) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1))))) (+ (* (+ (* x3 x3) (* (- x4 x3) x4)) (- (pow x1 3) (pow x2 3))) (* (+ (pow x4 3) (pow x3 3)) (+ (* x1 x1) (* x2 (+ x2 x1)))))))
* [exit]simplify:  Simplified to (+ (* (* (+ (* x3 x3) (* (- x4 x3) x4)) (+ (* x1 x1) (* x2 (+ x2 x1)))) (+ (* (* (* (* x1 x4) (- (* x1 x1) (* x2 (- x1 x2)))) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (- (- x3 x4) (* x2 x4))) (* (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x2 x4) (- x3 x4)) (- (- x3 x4) (* x2 x4))) (- (* x1 x1) (* x2 (- x1 x2))))) (* x3 (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))))) (* (* (* (- (* x1 x1) (* x2 (- x1 x2))) (* x2 (- (- x3 x4) (* x2 x4)))) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1))))) (+ (* (+ (* x3 x3) (* (- x4 x3) x4)) (- (pow x1 3) (pow x2 3))) (* (+ (pow x4 3) (pow x3 3)) (+ (* x1 x1) (* x2 (+ x2 x1)))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (30 enodes)
* * [misc]simplify:  iters left: 5 (82 enodes)
* * [misc]simplify:  iters left: 4 (211 enodes)
* [exit]simplify:  Simplified to (* (* (* (+ (* x1 x1) (* (+ x2 x1) x2)) (+ (* x3 x3) (* (- x4 x3) x4))) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x3 x4) (* x4 x2)))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2)))
* [exit]simplify:  Simplified to (* (* (* (+ (* x1 x1) (* (+ x2 x1) x2)) (+ (* x3 x3) (* (- x4 x3) x4))) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x3 x4) (* x4 x2)))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2)))
* * * * [misc]progress:  [ 87 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (56 enodes)
* * [misc]simplify:  iters left: 5 (153 enodes)
* * [misc]simplify:  iters left: 4 (359 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- (* x1 x1) (* x2 (- x1 x2))) (* x2 (- (- x3 x4) (* x2 x4)))) (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2))) (+ (* (* (+ x2 x1) (- x1 x2)) (+ (* x3 x3) (* x4 (- x4 x3)))) (* (+ x2 x1) (+ (pow x3 3) (pow x4 3))))) (* (+ (* (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x3 x4) (* x2 x4))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))) (* (* x3 (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2))) (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x2 x4) (- x3 x4)) (- (- x3 x4) (* x2 x4))) (- (* x1 x1) (* x2 (- x1 x2))))))) (* (+ x2 x1) (+ (* x3 x3) (* x4 (- x4 x3))))))
* [exit]simplify:  Simplified to (+ (* (* (* (- (* x1 x1) (* x2 (- x1 x2))) (* x2 (- (- x3 x4) (* x2 x4)))) (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2))) (+ (* (* (+ x2 x1) (- x1 x2)) (+ (* x3 x3) (* x4 (- x4 x3)))) (* (+ x2 x1) (+ (pow x3 3) (pow x4 3))))) (* (+ (* (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x3 x4) (* x2 x4))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))) (* (* x3 (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2))) (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x2 x4) (- x3 x4)) (- (- x3 x4) (* x2 x4))) (- (* x1 x1) (* x2 (- x1 x2))))))) (* (+ x2 x1) (+ (* x3 x3) (* x4 (- x4 x3))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (77 enodes)
* * [misc]simplify:  iters left: 4 (191 enodes)
* * [misc]simplify:  iters left: 3 (490 enodes)
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (* (- (* x1 x1) (* (- x1 x2) x2)) (- (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (* x3 x3) (* (- x4 x3) x4)))))
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (* (- (* x1 x1) (* (- x1 x2) x2)) (- (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (* x3 x3) (* (- x4 x3) x4)))))
* * * * [misc]progress:  [ 88 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (53 enodes)
* * [misc]simplify:  iters left: 5 (143 enodes)
* * [misc]simplify:  iters left: 4 (319 enodes)
* [exit]simplify:  Simplified to (+ (* (* (- x3 x4) (+ (* x1 x1) (* (+ x2 x1) x2))) (+ (* (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (- x3 x4) (* x2 x4))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))) (* (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x2 x4) (- x3 x4)) (- (- x3 x4) (* x2 x4))) (+ (* x2 x2) (* x1 (- x1 x2))))) (* x3 (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)))))) (* (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)) (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (- x3 x4) (* x2 x4)))) (* (+ (* (* (- x3 x4) (+ x4 x3)) (+ (* x1 x1) (* (+ x2 x1) x2))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))) x2)))
* [exit]simplify:  Simplified to (+ (* (* (- x3 x4) (+ (* x1 x1) (* (+ x2 x1) x2))) (+ (* (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (- x3 x4) (* x2 x4))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))) (* (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x2 x4) (- x3 x4)) (- (- x3 x4) (* x2 x4))) (+ (* x2 x2) (* x1 (- x1 x2))))) (* x3 (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)))))) (* (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)) (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (- x3 x4) (* x2 x4)))) (* (+ (* (* (- x3 x4) (+ x4 x3)) (+ (* x1 x1) (* (+ x2 x1) x2))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))) x2)))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (71 enodes)
* * [misc]simplify:  iters left: 4 (154 enodes)
* * [misc]simplify:  iters left: 3 (341 enodes)
* [exit]simplify:  Simplified to (* (+ (* x1 x1) (* x2 (+ x2 x1))) (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (- (- x1) (- x2 (- x3 x4))) x2)) (* (- (* x1 x1) (* x2 (- x1 x2))) (* (- (- x3 x4) (* x4 x2)) (- x3 x4)))))
* [exit]simplify:  Simplified to (* (+ (* x1 x1) (* x2 (+ x2 x1))) (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (- (- x1) (- x2 (- x3 x4))) x2)) (* (- (* x1 x1) (* x2 (- x1 x2))) (* (- (- x3 x4) (* x4 x2)) (- x3 x4)))))
* * * * [misc]progress:  [ 89 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (51 enodes)
* * [misc]simplify:  iters left: 5 (137 enodes)
* * [misc]simplify:  iters left: 4 (287 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x3 x4) (* x2 x4))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))) (* (* x3 (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- (- x1) x2))))) (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x2 x4) (- x3 x4)) (- (- x3 x4) (* x2 x4))) (- (* x1 x1) (* x2 (- x1 x2))))))) (* (- x3 x4) (+ x2 x1))) (* (* (- x3 x4) (+ (* (+ x4 x3) (+ x2 x1)) (* (+ x2 x1) (- x1 x2)))) (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- (- x1) x2)))) (* (- (* x1 x1) (* x2 (- x1 x2))) (* x2 (- (- x3 x4) (* x2 x4)))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x3 x4) (* x2 x4))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))) (* (* x3 (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- (- x1) x2))))) (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x2 x4) (- x3 x4)) (- (- x3 x4) (* x2 x4))) (- (* x1 x1) (* x2 (- x1 x2))))))) (* (- x3 x4) (+ x2 x1))) (* (* (- x3 x4) (+ (* (+ x4 x3) (+ x2 x1)) (* (+ x2 x1) (- x1 x2)))) (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- (- x1) x2)))) (* (- (* x1 x1) (* x2 (- x1 x2))) (* x2 (- (- x3 x4) (* x2 x4)))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (130 enodes)
* * [misc]simplify:  iters left: 3 (272 enodes)
* [exit]simplify:  Simplified to (* (* (* (- x3 x4) (+ x2 x1)) (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (- x3 x4) (* x4 x2)))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)))
* [exit]simplify:  Simplified to (* (* (* (- x3 x4) (+ x2 x1)) (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (- x3 x4) (* x4 x2)))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)))
* * * * [misc]progress:  [ 90 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (52 enodes)
* * [misc]simplify:  iters left: 5 (142 enodes)
* * [misc]simplify:  iters left: 4 (361 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x3 x4) (* x2 x4))) (+ (* (* (- x1 x2) (- x1 x2)) (* x2 (- x1 x2))) (* (* (+ x4 x3) (+ x4 x3)) (* (+ x4 x3) x2)))) (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (- (- x3 x4) (* x2 x4))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (- (* x1 x1) (* x2 (- x1 x2))))))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2))) (* (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (- (- x3 x4) (* x2 x4)) (+ (* x2 x4) (- x3 x4))) (- (* x1 x1) (* x2 (- x1 x2))))) x3)))
* [exit]simplify:  Simplified to (+ (+ (* (* (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x3 x4) (* x2 x4))) (+ (* (* (- x1 x2) (- x1 x2)) (* x2 (- x1 x2))) (* (* (+ x4 x3) (+ x4 x3)) (* (+ x4 x3) x2)))) (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (- (- x3 x4) (* x2 x4))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (- (* x1 x1) (* x2 (- x1 x2))))))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2))) (* (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (- (- x3 x4) (* x2 x4)) (+ (* x2 x4) (- x3 x4))) (- (* x1 x1) (* x2 (- x1 x2))))) x3)))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (80 enodes)
* * [misc]simplify:  iters left: 4 (185 enodes)
* * [misc]simplify:  iters left: 3 (493 enodes)
* [exit]simplify:  Simplified to (* (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4))))) (* (+ (* x2 x2) (* (- x1 x2) x1)) (- (- x3 x4) (* x4 x2))))
* [exit]simplify:  Simplified to (* (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4))))) (* (+ (* x2 x2) (* (- x1 x2) x1)) (- (- x3 x4) (* x4 x2))))
* * * * [misc]progress:  [ 91 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (- (+ x3 x4) (- x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (- (+ x3 x4) (- x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (48 enodes)
* * [misc]simplify:  iters left: 5 (121 enodes)
* * [misc]simplify:  iters left: 4 (295 enodes)
* [exit]simplify:  Simplified to (+ (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))) (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (- (- x3 x4) (* x2 x4))) (* (+ (+ x4 x3) (- x1 x2)) (* (- (+ x4 x3) (- x1 x2)) x2)))) (+ (* (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (- (- x3 x4) (* x2 x4))) (- (+ x4 x3) (- x1 x2)))) (* (* x3 (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4))))) (* (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (- (- x3 x4) (* x2 x4)) (+ (* x2 x4) (- x3 x4))) (+ (* x2 x2) (* (- x1 x2) x1)))) (- (+ x4 x3) (- x1 x2))))))
* [exit]simplify:  Simplified to (+ (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))) (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (- (- x3 x4) (* x2 x4))) (* (+ (+ x4 x3) (- x1 x2)) (* (- (+ x4 x3) (- x1 x2)) x2)))) (+ (* (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (- (- x3 x4) (* x2 x4))) (- (+ x4 x3) (- x1 x2)))) (* (* x3 (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4))))) (* (- (* (- (- x3 x4) (* x2 x4)) (+ (pow x1 3) (pow x2 3))) (* (* (- (- x3 x4) (* x2 x4)) (+ (* x2 x4) (- x3 x4))) (+ (* x2 x2) (* (- x1 x2) x1)))) (- (+ x4 x3) (- x1 x2))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (62 enodes)
* * [misc]simplify:  iters left: 4 (143 enodes)
* * [misc]simplify:  iters left: 3 (345 enodes)
* [exit]simplify:  Simplified to (* (* (- (- x3 x4) (* x4 x2)) (* (- (+ x3 x4) (- x1 x2)) (- (* x1 x1) (* x2 (- x1 x2))))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2)))
* [exit]simplify:  Simplified to (* (* (- (- x3 x4) (* x4 x2)) (* (- (+ x3 x4) (- x1 x2)) (- (* x1 x1) (* x2 (- x1 x2))))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2)))
* * * * [misc]progress:  [ 92 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (60 enodes)
* * [misc]simplify:  iters left: 5 (182 enodes)
* * [misc]simplify:  iters left: 4 (433 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (- (* x4 x4) (* x3 (- x4 x3)))) (+ (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* (* x1 x4) (- x2 x1)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))))) (* (- (* (- (* x2 x2) (* x1 x1)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (+ (* (- x2 x1) (pow (* x2 x4) 3)) (* (* (- x2 x1) (- x3 x4)) (* (- x3 x4) (- x3 x4))))) (* x3 (+ (* (+ (- x3 x4) (- (- x1) x2)) (+ (- x3 x4) (- x1))) (* x2 x2)))))) (* (* (+ (* (+ (- x3 x4) (- (- x1) x2)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (* (- x2 x1) x2))) (+ (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (+ (pow x4 3) (pow x3 3))) (* (- (* x4 x4) (* x3 (- x4 x3))) (- (pow x1 3) (pow x2 3))))))
* [exit]simplify:  Simplified to (+ (* (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (- (* x4 x4) (* x3 (- x4 x3)))) (+ (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* (* x1 x4) (- x2 x1)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))))) (* (- (* (- (* x2 x2) (* x1 x1)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (+ (* (- x2 x1) (pow (* x2 x4) 3)) (* (* (- x2 x1) (- x3 x4)) (* (- x3 x4) (- x3 x4))))) (* x3 (+ (* (+ (- x3 x4) (- (- x1) x2)) (+ (- x3 x4) (- x1))) (* x2 x2)))))) (* (* (+ (* (+ (- x3 x4) (- (- x1) x2)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (* (- x2 x1) x2))) (+ (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (+ (pow x4 3) (pow x3 3))) (* (- (* x4 x4) (* x3 (- x4 x3))) (- (pow x1 3) (pow x2 3))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (32 enodes)
* * [misc]simplify:  iters left: 5 (93 enodes)
* * [misc]simplify:  iters left: 4 (229 enodes)
* [exit]simplify:  Simplified to (* (* (* (+ (* x3 x3) (* x4 (- x4 x3))) (+ (* x2 (+ x2 x1)) (* x1 x1))) (+ (* (* (- x3 x4) (- x3 x4)) (- x2 x1)) (* (* (- x2 x1) (* x4 x2)) (- (* x4 x2) (- x3 x4))))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)))
* [exit]simplify:  Simplified to (* (* (* (+ (* x3 x3) (* x4 (- x4 x3))) (+ (* x2 (+ x2 x1)) (* x1 x1))) (+ (* (* (- x3 x4) (- x3 x4)) (- x2 x1)) (* (* (- x2 x1) (* x4 x2)) (- (* x4 x2) (- x3 x4))))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)))
* * * * [misc]progress:  [ 93 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (57 enodes)
* * [misc]simplify:  iters left: 5 (174 enodes)
* * [misc]simplify:  iters left: 4 (391 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)) (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (- x2 x1) x2))) (+ (* (+ (pow x3 3) (pow x4 3)) (+ x2 x1)) (* (* (- x1 x2) (+ x2 x1)) (+ (* x4 (- x4 x3)) (* x3 x3))))) (* (+ (* (* (* (* x1 x4) (- x2 x1)) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))) (* (- (* (- (* x2 x2) (* x1 x1)) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))) (+ (* (* (- x2 x1) (- x3 x4)) (* (- x3 x4) (- x3 x4))) (* (- x2 x1) (pow (* x2 x4) 3)))) (* x3 (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))))) (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ x2 x1))))
* [exit]simplify:  Simplified to (+ (* (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)) (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (- x2 x1) x2))) (+ (* (+ (pow x3 3) (pow x4 3)) (+ x2 x1)) (* (* (- x1 x2) (+ x2 x1)) (+ (* x4 (- x4 x3)) (* x3 x3))))) (* (+ (* (* (* (* x1 x4) (- x2 x1)) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))) (* (- (* (- (* x2 x2) (* x1 x1)) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))) (+ (* (* (- x2 x1) (- x3 x4)) (* (- x3 x4) (- x3 x4))) (* (- x2 x1) (pow (* x2 x4) 3)))) (* x3 (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))))) (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ x2 x1))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (85 enodes)
* * [misc]simplify:  iters left: 4 (192 enodes)
* * [misc]simplify:  iters left: 3 (466 enodes)
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (+ (* (* (- x2 x1) (* x4 x2)) (- (* x4 x2) (- x3 x4))) (* (* (- x3 x4) (- x3 x4)) (- x2 x1))) (* (+ x2 x1) (+ (* x3 x3) (* x4 (- x4 x3))))))
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (+ (* (* (- x2 x1) (* x4 x2)) (- (* x4 x2) (- x3 x4))) (* (* (- x3 x4) (- x3 x4)) (- x2 x1))) (* (+ x2 x1) (+ (* x3 x3) (* x4 (- x4 x3))))))
* * * * [misc]progress:  [ 94 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (55 enodes)
* * [misc]simplify:  iters left: 5 (169 enodes)
* * [misc]simplify:  iters left: 4 (363 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (* (* (- x2 x1) (* x2 x4)) (- (* x2 x4) (- x3 x4))) (* (- x2 x1) (* (- x3 x4) (- x3 x4)))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (+ (* (* (- x3 x4) x2) (- (pow x1 3) (pow x2 3))) (* (* (* (- x3 x4) x2) (+ x4 x3)) (+ (* x2 (+ x2 x1)) (* x1 x1))))) (* (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (- x3 x4)) (+ (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (- x2 x1))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (- (* (* (- x2 x1) (+ x2 x1)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (+ (* (* (- x2 x1) (- x3 x4)) (* (- x3 x4) (- x3 x4))) (* (- x2 x1) (pow (* x2 x4) 3)))) (* x3 (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)))))))
* [exit]simplify:  Simplified to (+ (* (* (+ (* (* (- x2 x1) (* x2 x4)) (- (* x2 x4) (- x3 x4))) (* (- x2 x1) (* (- x3 x4) (- x3 x4)))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (+ (* (* (- x3 x4) x2) (- (pow x1 3) (pow x2 3))) (* (* (* (- x3 x4) x2) (+ x4 x3)) (+ (* x2 (+ x2 x1)) (* x1 x1))))) (* (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (- x3 x4)) (+ (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (- x2 x1))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (- (* (* (- x2 x1) (+ x2 x1)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (+ (* (* (- x2 x1) (- x3 x4)) (* (- x3 x4) (- x3 x4))) (* (- x2 x1) (pow (* x2 x4) 3)))) (* x3 (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (27 enodes)
* * [misc]simplify:  iters left: 5 (82 enodes)
* * [misc]simplify:  iters left: 4 (183 enodes)
* * [misc]simplify:  iters left: 3 (426 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (+ (* (+ x2 x1) x2) (* x1 x1)) (- x3 x4))) (+ (* (+ (- x3 x4) (- (- x1) x2)) (* (+ (- x3 x4) (- x1)) (- x2 x1))) (* (* x2 x2) (- x2 x1))))
* [exit]simplify:  Simplified to (* (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (+ (* (+ x2 x1) x2) (* x1 x1)) (- x3 x4))) (+ (* (+ (- x3 x4) (- (- x1) x2)) (* (+ (- x3 x4) (- x1)) (- x2 x1))) (* (* x2 x2) (- x2 x1))))
* * * * [misc]progress:  [ 95 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (52 enodes)
* * [misc]simplify:  iters left: 5 (159 enodes)
* * [misc]simplify:  iters left: 4 (325 enodes)
* [exit]simplify:  Simplified to (+ (* (* (- x3 x4) (+ x2 x1)) (+ (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* (* x1 x4) (- x2 x1)) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))))) (* (+ (* (* (- x2 x1) (+ x2 x1)) (* (- x3 x4) (- x3 x4))) (- (* (* (* (- x2 x1) (+ x2 x1)) (* x2 x4)) (- (* x2 x4) (- x3 x4))) (+ (* (* (- x3 x4) (- x3 x4)) (* (- x2 x1) (- x3 x4))) (* (- x2 x1) (pow (* x2 x4) 3))))) (* x3 (+ (* (+ (- (- x1) x2) (- x3 x4)) (+ (- x3 x4) (- x1))) (* x2 x2)))))) (* (* (- x2 x1) (+ (* (+ (- (- x1) x2) (- x3 x4)) (+ (- x3 x4) (- x1))) (* x2 x2))) (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (* (- x3 x4) (+ (* (+ x4 x3) (+ x2 x1)) (* (+ x2 x1) (- x1 x2)))) x2))))
* [exit]simplify:  Simplified to (+ (* (* (- x3 x4) (+ x2 x1)) (+ (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* (* x1 x4) (- x2 x1)) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))))) (* (+ (* (* (- x2 x1) (+ x2 x1)) (* (- x3 x4) (- x3 x4))) (- (* (* (* (- x2 x1) (+ x2 x1)) (* x2 x4)) (- (* x2 x4) (- x3 x4))) (+ (* (* (- x3 x4) (- x3 x4)) (* (- x2 x1) (- x3 x4))) (* (- x2 x1) (pow (* x2 x4) 3))))) (* x3 (+ (* (+ (- (- x1) x2) (- x3 x4)) (+ (- x3 x4) (- x1))) (* x2 x2)))))) (* (* (- x2 x1) (+ (* (+ (- (- x1) x2) (- x3 x4)) (+ (- x3 x4) (- x1))) (* x2 x2))) (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (* (- x3 x4) (+ (* (+ x4 x3) (+ x2 x1)) (* (+ x2 x1) (- x1 x2)))) x2))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (72 enodes)
* * [misc]simplify:  iters left: 4 (154 enodes)
* * [misc]simplify:  iters left: 3 (276 enodes)
* [exit]simplify:  Simplified to (* (* (* (- x3 x4) (+ x2 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (+ (- (- x1) x2) (- x3 x4)) (* (+ (- x3 x4) (- x1)) (- x2 x1))) (* (* x2 x2) (- x2 x1))))
* [exit]simplify:  Simplified to (* (* (* (- x3 x4) (+ x2 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (+ (- (- x1) x2) (- x3 x4)) (* (+ (- x3 x4) (- x1)) (- x2 x1))) (* (* x2 x2) (- x2 x1))))
* * * * [misc]progress:  [ 96 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (53 enodes)
* * [misc]simplify:  iters left: 5 (165 enodes)
* * [misc]simplify:  iters left: 4 (398 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)) (* (+ (* (* (- x2 x1) (* x2 x4)) (- (* x2 x4) (- x3 x4))) (* (* (- x2 x1) (- x3 x4)) (- x3 x4))) (+ (* (* x2 (- x1 x2)) (* (- x1 x2) (- x1 x2))) (* (* x2 (+ x4 x3)) (* (+ x4 x3) (+ x4 x3)))))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (- x2 x1))))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (* x3 (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)))) (- (* (- (* x2 x2) (* x1 x1)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (+ (* (* (- x2 x1) (* x2 x4)) (* (* x2 x4) (* x2 x4))) (* (* (- x2 x1) (- x3 x4)) (* (- x3 x4) (- x3 x4)))))))
* [exit]simplify:  Simplified to (+ (+ (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)) (* (+ (* (* (- x2 x1) (* x2 x4)) (- (* x2 x4) (- x3 x4))) (* (* (- x2 x1) (- x3 x4)) (- x3 x4))) (+ (* (* x2 (- x1 x2)) (* (- x1 x2) (- x1 x2))) (* (* x2 (+ x4 x3)) (* (+ x4 x3) (+ x4 x3)))))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (- x2 x1))))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (* x3 (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)))) (- (* (- (* x2 x2) (* x1 x1)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (+ (* (* (- x2 x1) (* x2 x4)) (* (* x2 x4) (* x2 x4))) (* (* (- x2 x1) (- x3 x4)) (* (- x3 x4) (- x3 x4)))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (89 enodes)
* * [misc]simplify:  iters left: 4 (203 enodes)
* [exit]simplify:  Simplified to (* (* (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- (- x1 x2) (+ x3 x4)) (- x1 x2))) (- x2 x1)) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2))) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))))
* [exit]simplify:  Simplified to (* (* (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- (- x1 x2) (+ x3 x4)) (- x1 x2))) (- x2 x1)) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2))) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))))
* * * * [misc]progress:  [ 97 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (- (+ x3 x4) (- x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (- (+ x3 x4) (- x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (49 enodes)
* * [misc]simplify:  iters left: 5 (144 enodes)
* * [misc]simplify:  iters left: 4 (320 enodes)
* [exit]simplify:  Simplified to (+ (* (- (+ x4 x3) (- x1 x2)) (+ (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (* (* x1 x4) (- x2 x1)) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))) (* (+ (* (- (* x2 x2) (* x1 x1)) (* (- x3 x4) (- x3 x4))) (- (* (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (- (* x2 x2) (* x1 x1))) (+ (* (- x2 x1) (pow (* x2 x4) 3)) (* (* (- x3 x4) (- x3 x4)) (* (- x2 x1) (- x3 x4)))))) (* x3 (+ (* (+ (- x3 x4) (- x1)) (+ (- (- x3 x4) x2) (- x1))) (* x2 x2)))))) (* (* (+ (* (* (- x2 x1) (* x2 x4)) (- (* x2 x4) (- x3 x4))) (* (- x2 x1) (* (- x3 x4) (- x3 x4)))) (* (* (- (+ x4 x3) (- x1 x2)) (+ (- x1 x2) (+ x4 x3))) x2)) (+ (* (+ (- x3 x4) (- x1)) (+ (- (- x3 x4) x2) (- x1))) (* x2 x2))))
* [exit]simplify:  Simplified to (+ (* (- (+ x4 x3) (- x1 x2)) (+ (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (* (* x1 x4) (- x2 x1)) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))) (* (+ (* (- (* x2 x2) (* x1 x1)) (* (- x3 x4) (- x3 x4))) (- (* (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (- (* x2 x2) (* x1 x1))) (+ (* (- x2 x1) (pow (* x2 x4) 3)) (* (* (- x3 x4) (- x3 x4)) (* (- x2 x1) (- x3 x4)))))) (* x3 (+ (* (+ (- x3 x4) (- x1)) (+ (- (- x3 x4) x2) (- x1))) (* x2 x2)))))) (* (* (+ (* (* (- x2 x1) (* x2 x4)) (- (* x2 x4) (- x3 x4))) (* (- x2 x1) (* (- x3 x4) (- x3 x4)))) (* (* (- (+ x4 x3) (- x1 x2)) (+ (- x1 x2) (+ x4 x3))) x2)) (+ (* (+ (- x3 x4) (- x1)) (+ (- (- x3 x4) x2) (- x1))) (* x2 x2))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (71 enodes)
* * [misc]simplify:  iters left: 4 (154 enodes)
* * [misc]simplify:  iters left: 3 (337 enodes)
* [exit]simplify:  Simplified to (* (* (- (* (* x4 x2) (* x4 x2)) (* (- (* x4 x2) (- x3 x4)) (- x3 x4))) (* (- x2 x1) (- (+ x3 x4) (- x1 x2)))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)))
* [exit]simplify:  Simplified to (* (* (- (* (* x4 x2) (* x4 x2)) (* (- (* x4 x2) (- x3 x4)) (- x3 x4))) (* (- x2 x1) (- (+ x3 x4) (- x1 x2)))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)))
* * * * [misc]progress:  [ 98 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (56 enodes)
* * [misc]simplify:  iters left: 5 (151 enodes)
* * [misc]simplify:  iters left: 4 (377 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (* (+ x2 x1) x2) (* x1 x1)) (- (* x4 x4) (* x3 (- x4 x3)))) (+ (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x1) (- (- x3 x4) x2))) (* x2 x2)) (* x3 (* (- (- x3 x4) (* x2 x4)) (- (* (+ x2 x1) (- x2 x1)) (* (- x2 x1) (+ (- x3 x4) (* x2 x4))))))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* (* x1 x4) (- x2 x1)) (- (- x3 x4) (* x2 x4)))))) (* (* (* (- (- x3 x4) (* x2 x4)) (* (- x2 x1) x2)) (+ (* (+ (- x3 x4) (- x1)) (+ (- x1) (- (- x3 x4) x2))) (* x2 x2))) (+ (* (+ (* (+ x2 x1) x2) (* x1 x1)) (+ (pow x3 3) (pow x4 3))) (* (- (pow x1 3) (pow x2 3)) (- (* x4 x4) (* x3 (- x4 x3)))))))
* [exit]simplify:  Simplified to (+ (* (* (+ (* (+ x2 x1) x2) (* x1 x1)) (- (* x4 x4) (* x3 (- x4 x3)))) (+ (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x1) (- (- x3 x4) x2))) (* x2 x2)) (* x3 (* (- (- x3 x4) (* x2 x4)) (- (* (+ x2 x1) (- x2 x1)) (* (- x2 x1) (+ (- x3 x4) (* x2 x4))))))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* (* x1 x4) (- x2 x1)) (- (- x3 x4) (* x2 x4)))))) (* (* (* (- (- x3 x4) (* x2 x4)) (* (- x2 x1) x2)) (+ (* (+ (- x3 x4) (- x1)) (+ (- x1) (- (- x3 x4) x2))) (* x2 x2))) (+ (* (+ (* (+ x2 x1) x2) (* x1 x1)) (+ (pow x3 3) (pow x4 3))) (* (- (pow x1 3) (pow x2 3)) (- (* x4 x4) (* x3 (- x4 x3)))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (76 enodes)
* * [misc]simplify:  iters left: 4 (192 enodes)
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (* (* (- x2 x1) (- (- x3 x4) (* x4 x2))) (+ (* (+ x2 x1) x2) (* x1 x1))) (- (* x4 x4) (* x3 (- x4 x3)))))
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (* (* (- x2 x1) (- (- x3 x4) (* x4 x2))) (+ (* (+ x2 x1) x2) (* x1 x1))) (- (* x4 x4) (* x3 (- x4 x3)))))
* * * * [misc]progress:  [ 99 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (53 enodes)
* * [misc]simplify:  iters left: 5 (143 enodes)
* * [misc]simplify:  iters left: 4 (318 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ x2 x1) (- (* x4 x4) (* x3 (- x4 x3)))) (+ (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2)) (* x3 (* (- (- x3 x4) (* x2 x4)) (- (* (+ x2 x1) (- x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (- x2 x1)))))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* (* x1 x4) (- x2 x1)) (- (- x3 x4) (* x2 x4)))))) (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2)) (* (* (- (- x3 x4) (* x2 x4)) (* (- x2 x1) x2)) (+ (* (+ (pow x4 3) (pow x3 3)) (+ x2 x1)) (* (* (- x1 x2) (+ x2 x1)) (- (* x4 x4) (* x3 (- x4 x3))))))))
* [exit]simplify:  Simplified to (+ (* (* (+ x2 x1) (- (* x4 x4) (* x3 (- x4 x3)))) (+ (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2)) (* x3 (* (- (- x3 x4) (* x2 x4)) (- (* (+ x2 x1) (- x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (- x2 x1)))))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* (* x1 x4) (- x2 x1)) (- (- x3 x4) (* x2 x4)))))) (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2)) (* (* (- (- x3 x4) (* x2 x4)) (* (- x2 x1) x2)) (+ (* (+ (pow x4 3) (pow x3 3)) (+ x2 x1)) (* (* (- x1 x2) (+ x2 x1)) (- (* x4 x4) (* x3 (- x4 x3))))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (68 enodes)
* * [misc]simplify:  iters left: 4 (153 enodes)
* * [misc]simplify:  iters left: 3 (330 enodes)
* [exit]simplify:  Simplified to (* (+ x2 x1) (* (* (* (- (- x3 x4) (* x4 x2)) (+ (* x4 (- x4 x3)) (* x3 x3))) (- x2 x1)) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2))))
* [exit]simplify:  Simplified to (* (+ x2 x1) (* (* (* (- (- x3 x4) (* x4 x2)) (+ (* x4 (- x4 x3)) (* x3 x3))) (- x2 x1)) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2))))
* * * * [misc]progress:  [ 100 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (51 enodes)
* * [misc]simplify:  iters left: 5 (137 enodes)
* * [misc]simplify:  iters left: 4 (286 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2)) (* x3 (* (- (- x3 x4) (* x2 x4)) (- (- (* x2 x2) (* x1 x1)) (* (+ (- x3 x4) (* x2 x4)) (- x2 x1)))))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* (* x1 x4) (- x2 x1)) (- (- x3 x4) (* x2 x4))))) (* (- x3 x4) (+ (* x2 (+ x2 x1)) (* x1 x1)))) (* (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2)) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))) (* x2 (+ (* (- (pow x1 3) (pow x2 3)) (- x3 x4)) (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (* x2 (+ x2 x1))))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2)) (* x3 (* (- (- x3 x4) (* x2 x4)) (- (- (* x2 x2) (* x1 x1)) (* (+ (- x3 x4) (* x2 x4)) (- x2 x1)))))) (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* (* x1 x4) (- x2 x1)) (- (- x3 x4) (* x2 x4))))) (* (- x3 x4) (+ (* x2 (+ x2 x1)) (* x1 x1)))) (* (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- (- x1) x2))) (* x2 x2)) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))) (* x2 (+ (* (- (pow x1 3) (pow x2 3)) (- x3 x4)) (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (* x2 (+ x2 x1))))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (65 enodes)
* * [misc]simplify:  iters left: 4 (131 enodes)
* * [misc]simplify:  iters left: 3 (261 enodes)
* [exit]simplify:  Simplified to (* (* (- x3 x4) (+ (* x1 x1) (* (+ x2 x1) x2))) (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- (- x1) x2)))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))))
* [exit]simplify:  Simplified to (* (* (- x3 x4) (+ (* x1 x1) (* (+ x2 x1) x2))) (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- (- x1) x2)))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))))
* * * * [misc]progress:  [ 101 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (48 enodes)
* * [misc]simplify:  iters left: 5 (127 enodes)
* * [misc]simplify:  iters left: 4 (232 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)) (* (* (- (- x3 x4) (* x2 x4)) (* (- x2 x1) x2)) (* (- x3 x4) (+ (* (+ x2 x1) (+ x4 x3)) (* (+ x2 x1) (- x1 x2)))))) (* (* (+ x2 x1) (- x3 x4)) (+ (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)) (* x3 (* (- (- x3 x4) (* x2 x4)) (- (* (- x2 x1) (+ x2 x1)) (* (- x2 x1) (+ (- x3 x4) (* x2 x4))))))) (* (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))))))
* [exit]simplify:  Simplified to (+ (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)) (* (* (- (- x3 x4) (* x2 x4)) (* (- x2 x1) x2)) (* (- x3 x4) (+ (* (+ x2 x1) (+ x4 x3)) (* (+ x2 x1) (- x1 x2)))))) (* (* (+ x2 x1) (- x3 x4)) (+ (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)) (* x3 (* (- (- x3 x4) (* x2 x4)) (- (* (- x2 x1) (+ x2 x1)) (* (- x2 x1) (+ (- x3 x4) (* x2 x4))))))) (* (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (55 enodes)
* * [misc]simplify:  iters left: 4 (116 enodes)
* * [misc]simplify:  iters left: 3 (233 enodes)
* [exit]simplify:  Simplified to (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- (- x1) x2)) x2)) (* (- x3 x4) (* (- (- x3 x4) (* x4 x2)) (* (- x2 x1) (+ x2 x1)))))
* [exit]simplify:  Simplified to (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- (- x1) x2)) x2)) (* (- x3 x4) (* (- (- x3 x4) (* x4 x2)) (* (- x2 x1) (+ x2 x1)))))
* * * * [misc]progress:  [ 102 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (49 enodes)
* * [misc]simplify:  iters left: 5 (133 enodes)
* * [misc]simplify:  iters left: 4 (297 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))) (+ (* (* x2 (+ x4 x3)) (* (+ x4 x3) (+ x4 x3))) (* (* (- x1 x2) x2) (* (- x1 x2) (- x1 x2))))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (* (- x2 x1) (- (* (+ x2 x1) (- (- x3 x4) (* x2 x4))) (- (* (- x3 x4) (- x3 x4)) (* (* x2 x4) (* x2 x4)))))) (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) x3)))
* [exit]simplify:  Simplified to (+ (+ (* (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))) (+ (* (* x2 (+ x4 x3)) (* (+ x4 x3) (+ x4 x3))) (* (* (- x1 x2) x2) (* (- x1 x2) (- x1 x2))))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- (- x1 x2) (+ x4 x3)) (- x1 x2))) (* (- x2 x1) (- (* (+ x2 x1) (- (- x3 x4) (* x2 x4))) (- (* (- x3 x4) (- x3 x4)) (* (* x2 x4) (* x2 x4)))))) (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) x3)))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (72 enodes)
* * [misc]simplify:  iters left: 4 (160 enodes)
* * [misc]simplify:  iters left: 3 (374 enodes)
* [exit]simplify:  Simplified to (* (* (* (- x2 x1) (+ (* (- x1 x2) (- (- x1 x2) (+ x3 x4))) (* (+ x3 x4) (+ x3 x4)))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2))) (- (- x3 x4) (* x4 x2)))
* [exit]simplify:  Simplified to (* (* (* (- x2 x1) (+ (* (- x1 x2) (- (- x1 x2) (+ x3 x4))) (* (+ x3 x4) (+ x3 x4)))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2))) (- (- x3 x4) (* x4 x2)))
* * * * [misc]progress:  [ 103 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (- (+ x3 x4) (- x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (- (+ x3 x4) (- x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (45 enodes)
* * [misc]simplify:  iters left: 5 (112 enodes)
* * [misc]simplify:  iters left: 4 (247 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (- x2 x1))) (* (- (- x3 x4) (* x2 x4)) (- (+ x4 x3) (- x1 x2)))) (* (* x3 (* (- (- x3 x4) (* x2 x4)) (- (- (* x2 x2) (* x1 x1)) (* (+ (- x3 x4) (* x2 x4)) (- x2 x1))))) (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (- (+ x4 x3) (- x1 x2))))) (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* (* (- (- x3 x4) (* x2 x4)) (* (- x2 x1) x2)) (* (- (+ x4 x3) (- x1 x2)) (+ (+ x4 x3) (- x1 x2))))))
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (- x2 x1))) (* (- (- x3 x4) (* x2 x4)) (- (+ x4 x3) (- x1 x2)))) (* (* x3 (* (- (- x3 x4) (* x2 x4)) (- (- (* x2 x2) (* x1 x1)) (* (+ (- x3 x4) (* x2 x4)) (- x2 x1))))) (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (- (+ x4 x3) (- x1 x2))))) (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* (* (- (- x3 x4) (* x2 x4)) (* (- x2 x1) x2)) (* (- (+ x4 x3) (- x1 x2)) (+ (+ x4 x3) (- x1 x2))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (54 enodes)
* * [misc]simplify:  iters left: 4 (118 enodes)
* * [misc]simplify:  iters left: 3 (247 enodes)
* [exit]simplify:  Simplified to (* (* (+ (+ x3 x2) (- x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (+ (* (+ (- x1) (- (- x3 x4) x2)) (+ (- x3 x4) (- x1))) (* x2 x2)))
* [exit]simplify:  Simplified to (* (* (+ (+ x3 x2) (- x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (+ (* (+ (- x1) (- (- x3 x4) x2)) (+ (- x3 x4) (- x1))) (* x2 x2)))
* * * * [misc]progress:  [ 104 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (56 enodes)
* * [misc]simplify:  iters left: 5 (181 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (* (+ x2 x1) x2) (* x1 x1)) (+ (* x4 (- x4 x3)) (* x3 x3))) (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (* (+ (- x3 x4) (- x1)) (+ (- x1) (- (- x3 x4) x2))) (* x2 x2))) (* (+ (* (+ (* x2 x4) (- x3 x4)) (+ (+ x2 x1) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ x2 x1))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))) (* (* (+ (* (+ (* x2 x4) (- x3 x4)) (+ (+ x2 x1) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ x2 x1))) (+ (* (+ (- x3 x4) (- x1)) (+ (- x1) (- (- x3 x4) x2))) (* x2 x2))) (+ (* (* x2 (- (pow x1 3) (pow x2 3))) (+ (* x4 (- x4 x3)) (* x3 x3))) (* (* x2 (+ (pow x3 3) (pow x4 3))) (+ (* (+ x2 x1) x2) (* x1 x1))))))
* [exit]simplify:  Simplified to (+ (* (* (+ (* (+ x2 x1) x2) (* x1 x1)) (+ (* x4 (- x4 x3)) (* x3 x3))) (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (* (+ (- x3 x4) (- x1)) (+ (- x1) (- (- x3 x4) x2))) (* x2 x2))) (* (+ (* (+ (* x2 x4) (- x3 x4)) (+ (+ x2 x1) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ x2 x1))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))) (* (* (+ (* (+ (* x2 x4) (- x3 x4)) (+ (+ x2 x1) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ x2 x1))) (+ (* (+ (- x3 x4) (- x1)) (+ (- x1) (- (- x3 x4) x2))) (* x2 x2))) (+ (* (* x2 (- (pow x1 3) (pow x2 3))) (+ (* x4 (- x4 x3)) (* x3 x3))) (* (* x2 (+ (pow x3 3) (pow x4 3))) (+ (* (+ x2 x1) x2) (* x1 x1))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (32 enodes)
* * [misc]simplify:  iters left: 5 (108 enodes)
* * [misc]simplify:  iters left: 4 (322 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)))) (* (+ (* x3 x3) (* x4 (- x4 x3))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2))))
* [exit]simplify:  Simplified to (* (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)))) (* (+ (* x3 x3) (* x4 (- x4 x3))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2))))
* * * * [misc]progress:  [ 105 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (53 enodes)
* * [misc]simplify:  iters left: 5 (174 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (* (- x4 x3) x4) (* x3 x3)) (+ x2 x1)) (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* (+ (* (+ (+ (* x2 x4) (- x3 x4)) (+ x2 x1)) (+ (* x2 x4) (- x3 x4))) (* (+ x2 x1) (+ x2 x1))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))) (* (+ (* (* x2 (- (* x1 x1) (* x2 x2))) (+ (* (- x4 x3) x4) (* x3 x3))) (* (* (+ x2 x1) x2) (+ (pow x4 3) (pow x3 3)))) (* (+ (* (+ (+ (* x2 x4) (- x3 x4)) (+ x2 x1)) (+ (* x2 x4) (- x3 x4))) (* (+ x2 x1) (+ x2 x1))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)))))
* [exit]simplify:  Simplified to (+ (* (* (+ (* (- x4 x3) x4) (* x3 x3)) (+ x2 x1)) (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* (+ (* (+ (+ (* x2 x4) (- x3 x4)) (+ x2 x1)) (+ (* x2 x4) (- x3 x4))) (* (+ x2 x1) (+ x2 x1))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))) (* (+ (* (* x2 (- (* x1 x1) (* x2 x2))) (+ (* (- x4 x3) x4) (* x3 x3))) (* (* (+ x2 x1) x2) (+ (pow x4 3) (pow x3 3)))) (* (+ (* (+ (+ (* x2 x4) (- x3 x4)) (+ x2 x1)) (+ (* x2 x4) (- x3 x4))) (* (+ x2 x1) (+ x2 x1))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (101 enodes)
* * [misc]simplify:  iters left: 4 (315 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (+ x2 x1) (+ (* x4 x2) (- x3 x4))))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2))) (* (+ x2 x1) (+ (* x3 x3) (* x4 (- x4 x3)))))
* [exit]simplify:  Simplified to (* (* (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (+ x2 x1) (+ (* x4 x2) (- x3 x4))))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2))) (* (+ x2 x1) (+ (* x3 x3) (* x4 (- x4 x3)))))
* * * * [misc]progress:  [ 106 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (51 enodes)
* * [misc]simplify:  iters left: 5 (167 enodes)
* * [misc]simplify:  iters left: 4 (448 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* (+ (* (+ (+ (+ x2 x1) (* x2 x4)) (- x3 x4)) (+ (* x2 x4) (- x3 x4))) (* (+ x2 x1) (+ x2 x1))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (- x3 x4) (+ (* x1 x1) (* (+ x2 x1) x2)))) (* (* (+ (* (+ (+ (+ x2 x1) (* x2 x4)) (- x3 x4)) (+ (* x2 x4) (- x3 x4))) (* (+ x2 x1) (+ x2 x1))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* x2 (+ (* (- (pow x1 3) (pow x2 3)) (- x3 x4)) (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (* (+ x2 x1) x2)))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* (+ (* (+ (+ (+ x2 x1) (* x2 x4)) (- x3 x4)) (+ (* x2 x4) (- x3 x4))) (* (+ x2 x1) (+ x2 x1))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (- x3 x4) (+ (* x1 x1) (* (+ x2 x1) x2)))) (* (* (+ (* (+ (+ (+ x2 x1) (* x2 x4)) (- x3 x4)) (+ (* x2 x4) (- x3 x4))) (* (+ x2 x1) (+ x2 x1))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* x2 (+ (* (- (pow x1 3) (pow x2 3)) (- x3 x4)) (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (* (+ x2 x1) x2)))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (27 enodes)
* * [misc]simplify:  iters left: 5 (97 enodes)
* * [misc]simplify:  iters left: 4 (273 enodes)
* [exit]simplify:  Simplified to (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- (- x1) x2)))) (* (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (- x3 x4)) (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)))))
* [exit]simplify:  Simplified to (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- (- x1) x2)))) (* (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (- x3 x4)) (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)))))
* * * * [misc]progress:  [ 107 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (- x3 x4) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (- x3 x4) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (48 enodes)
* * [misc]simplify:  iters left: 5 (157 enodes)
* * [misc]simplify:  iters left: 4 (393 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ x2 x1) (- x3 x4)) (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (* (+ (- x1) (- (- x3 x4) x2)) (+ (- x3 x4) (- x1))) (* x2 x2))) (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ (* x2 x4) (- x3 x4)))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))) (* (* (* (- x3 x4) (+ (* (- x1 x2) (+ x2 x1)) (* (+ x4 x3) (+ x2 x1)))) x2) (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ (* x2 x4) (- x3 x4)))) (+ (* (+ (- x1) (- (- x3 x4) x2)) (+ (- x3 x4) (- x1))) (* x2 x2)))))
* [exit]simplify:  Simplified to (+ (* (* (+ x2 x1) (- x3 x4)) (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (* (+ (- x1) (- (- x3 x4) x2)) (+ (- x3 x4) (- x1))) (* x2 x2))) (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ (* x2 x4) (- x3 x4)))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))) (* (* (* (- x3 x4) (+ (* (- x1 x2) (+ x2 x1)) (* (+ x4 x3) (+ x2 x1)))) x2) (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ (* x2 x4) (- x3 x4)))) (+ (* (+ (- x1) (- (- x3 x4) x2)) (+ (- x3 x4) (- x1))) (* x2 x2)))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (87 enodes)
* * [misc]simplify:  iters left: 4 (273 enodes)
* [exit]simplify:  Simplified to (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- (- x1) x2)))) (* (* (- x3 x4) (+ x2 x1)) (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)))))
* [exit]simplify:  Simplified to (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- (- x1) x2)))) (* (* (- x3 x4) (+ x2 x1)) (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)))))
* * * * [misc]progress:  [ 108 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (48 enodes)
* * [misc]simplify:  iters left: 5 (163 enodes)
* * [misc]simplify:  iters left: 4 (467 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)) (+ (* (* (+ x4 x3) (+ x4 x3)) (* x2 (+ x4 x3))) (* (* (- x1 x2) (- x1 x2)) (* x2 (- x1 x2))))) (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ (* x2 x4) (- x3 x4))))) (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- x1 x2) (- (- x1 x2) (+ x4 x3)))) (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ (* x2 x4) (- x3 x4)))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))))
* [exit]simplify:  Simplified to (+ (* (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2)) (+ (* (* (+ x4 x3) (+ x4 x3)) (* x2 (+ x4 x3))) (* (* (- x1 x2) (- x1 x2)) (* x2 (- x1 x2))))) (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ (* x2 x4) (- x3 x4))))) (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- x1 x2) (- (- x1 x2) (+ x4 x3)))) (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4)))) (* (+ x2 x1) (+ (* x2 x4) (- x3 x4)))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (107 enodes)
* * [misc]simplify:  iters left: 4 (307 enodes)
* [exit]simplify:  Simplified to (* (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2))) (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))))
* [exit]simplify:  Simplified to (* (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2))) (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))))
* * * * [misc]progress:  [ 109 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (- (+ x3 x4) (- x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (- (+ x3 x4) (- x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (44 enodes)
* * [misc]simplify:  iters left: 5 (142 enodes)
* * [misc]simplify:  iters left: 4 (413 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- (+ x4 x3) (- x1 x2)) (+ (+ x4 x3) (- x1 x2))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* (+ (* (+ x2 x1) (+ (* x2 x4) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4))))) x2)) (* (- (+ x4 x3) (- x1 x2)) (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* (+ (* (+ x2 x1) (+ (* x2 x4) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4))))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))))
* [exit]simplify:  Simplified to (+ (* (* (* (- (+ x4 x3) (- x1 x2)) (+ (+ x4 x3) (- x1 x2))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* (+ (* (+ x2 x1) (+ (* x2 x4) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4))))) x2)) (* (- (+ x4 x3) (- x1 x2)) (+ (* (* x3 (- (pow (+ x2 x1) 3) (pow (+ (* x2 x4) (- x3 x4)) 3))) (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1)))) (* x2 x2))) (* (+ (* (+ x2 x1) (+ (* x2 x4) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x2 x4) (- x3 x4)) (+ (* x2 x4) (- x3 x4))))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (89 enodes)
* * [misc]simplify:  iters left: 4 (254 enodes)
* [exit]simplify:  Simplified to (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))) (* (- (+ x3 x4) (- x1 x2)) (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)))))
* [exit]simplify:  Simplified to (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))) (* (- (+ x3 x4) (- x1 x2)) (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)))))
* * * * [misc]progress:  [ 110 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (52 enodes)
* * [misc]simplify:  iters left: 5 (165 enodes)
* * [misc]simplify:  iters left: 4 (480 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* (+ (- (- x1) x2) (- x3 x4)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (+ (+ (+ x2 x1) (- x3 x4)) (* x2 x4))) (* x1 x4))) (* (+ (* x3 x3) (* x4 (- x4 x3))) (+ (* (+ x2 x1) x2) (* x1 x1)))) (* (* (* (+ (+ (+ x2 x1) (- x3 x4)) (* x2 x4)) x2) (+ (* (+ (pow x4 3) (pow x3 3)) (+ (* (+ x2 x1) x2) (* x1 x1))) (* (+ (* x3 x3) (* x4 (- x4 x3))) (- (pow x1 3) (pow x2 3))))) (+ (* (+ (- (- x1) x2) (- x3 x4)) (+ (- x3 x4) (- x1))) (* x2 x2))))
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* (+ (- (- x1) x2) (- x3 x4)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (+ (+ (+ x2 x1) (- x3 x4)) (* x2 x4))) (* x1 x4))) (* (+ (* x3 x3) (* x4 (- x4 x3))) (+ (* (+ x2 x1) x2) (* x1 x1)))) (* (* (* (+ (+ (+ x2 x1) (- x3 x4)) (* x2 x4)) x2) (+ (* (+ (pow x4 3) (pow x3 3)) (+ (* (+ x2 x1) x2) (* x1 x1))) (* (+ (* x3 x3) (* x4 (- x4 x3))) (- (pow x1 3) (pow x2 3))))) (+ (* (+ (- (- x1) x2) (- x3 x4)) (+ (- x3 x4) (- x1))) (* x2 x2))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (83 enodes)
* * [misc]simplify:  iters left: 4 (248 enodes)
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ (* x1 x1) (* x2 (+ x2 x1)))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ (* x1 x1) (* x2 (+ x2 x1)))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))
* * * * [misc]progress:  [ 111 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (49 enodes)
* * [misc]simplify:  iters left: 5 (157 enodes)
* * [misc]simplify:  iters left: 4 (415 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (+ x2 x1) (+ (pow x4 3) (pow x3 3))) (* (* (+ x2 x1) (- x1 x2)) (+ (* x3 x3) (* (- x4 x3) x4)))) (* (* (- (+ (+ x2 x1) x3) (- x4 (* x2 x4))) x2) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))) (* (+ (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (* (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (- (+ (+ x2 x1) x3) (- x4 (* x2 x4))))) (* (+ x2 x1) (+ (* x3 x3) (* (- x4 x3) x4)))))
* [exit]simplify:  Simplified to (+ (* (+ (* (+ x2 x1) (+ (pow x4 3) (pow x3 3))) (* (* (+ x2 x1) (- x1 x2)) (+ (* x3 x3) (* (- x4 x3) x4)))) (* (* (- (+ (+ x2 x1) x3) (- x4 (* x2 x4))) x2) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))) (* (+ (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (* (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (- (+ (+ x2 x1) x3) (- x4 (* x2 x4))))) (* (+ x2 x1) (+ (* x3 x3) (* (- x4 x3) x4)))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (74 enodes)
* * [misc]simplify:  iters left: 4 (216 enodes)
* [exit]simplify:  Simplified to (* (* (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ x2 x1)) (- (+ (* x4 x2) x3) (- x4 (+ x2 x1)))) (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- (- x1) x2)))))
* [exit]simplify:  Simplified to (* (* (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ x2 x1)) (- (+ (* x4 x2) x3) (- x4 (+ x2 x1)))) (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- (- x1) x2)))))
* * * * [misc]progress:  [ 112 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (47 enodes)
* * [misc]simplify:  iters left: 5 (151 enodes)
* * [misc]simplify:  iters left: 4 (407 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (* x1 (* (* (- (+ (+ x2 x1) x3) (- x4 (* x2 x4))) x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (- x3 x4) (+ (* x1 x1) (* (+ x2 x1) x2)))) (* (* (- (+ (+ x2 x1) x3) (- x4 (* x2 x4))) (+ (* (* (* x2 (+ x4 x3)) (- x3 x4)) (+ (* x1 x1) (* (+ x2 x1) x2))) (* (* (- x3 x4) x2) (- (pow x1 3) (pow x2 3))))) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (* x1 (* (* (- (+ (+ x2 x1) x3) (- x4 (* x2 x4))) x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (- x3 x4) (+ (* x1 x1) (* (+ x2 x1) x2)))) (* (* (- (+ (+ x2 x1) x3) (- x4 (* x2 x4))) (+ (* (* (* x2 (+ x4 x3)) (- x3 x4)) (+ (* x1 x1) (* (+ x2 x1) x2))) (* (* (- x3 x4) x2) (- (pow x1 3) (pow x2 3))))) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (72 enodes)
* * [misc]simplify:  iters left: 4 (189 enodes)
* * [misc]simplify:  iters left: 3 (462 enodes)
* [exit]simplify:  Simplified to (* (* (+ (+ (* x4 x2) (+ x2 x1)) (- x3 x4)) (* (- x3 x4) (+ (* x2 (+ x2 x1)) (* x1 x1)))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)))
* [exit]simplify:  Simplified to (* (* (+ (+ (* x4 x2) (+ x2 x1)) (- x3 x4)) (* (- x3 x4) (+ (* x2 (+ x2 x1)) (* x1 x1)))) (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)))
* * * * [misc]progress:  [ 113 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (- x3 x4) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (- x3 x4) (+ x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (44 enodes)
* * [misc]simplify:  iters left: 5 (141 enodes)
* * [misc]simplify:  iters left: 4 (357 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (* x1 (* (* (- (+ x3 (* x2 x4)) (- x4 (+ x2 x1))) x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (+ x2 x1) (- x3 x4))) (* (* (- x3 x4) (+ (* (+ x4 x3) (+ x2 x1)) (- (* x1 x1) (* x2 x2)))) (* (* (- (+ x3 (* x2 x4)) (- x4 (+ x2 x1))) x2) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (* x1 (* (* (- (+ x3 (* x2 x4)) (- x4 (+ x2 x1))) x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (+ x2 x1) (- x3 x4))) (* (* (- x3 x4) (+ (* (+ x4 x3) (+ x2 x1)) (- (* x1 x1) (* x2 x2)))) (* (* (- (+ x3 (* x2 x4)) (- x4 (+ x2 x1))) x2) (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (61 enodes)
* * [misc]simplify:  iters left: 4 (178 enodes)
* * [misc]simplify:  iters left: 3 (436 enodes)
* [exit]simplify:  Simplified to (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2)) (* (- (+ x2 (+ x3 x1)) (- x4 (* x4 x2))) (* (+ x2 x1) (- x3 x4))))
* [exit]simplify:  Simplified to (* (+ (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* (+ (- x3 x4) (- x1)) x2)) (* x2 x2)) (* (- (+ x2 (+ x3 x1)) (- x4 (* x4 x2))) (* (+ x2 x1) (- x3 x4))))
* * * * [misc]progress:  [ 114 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (44 enodes)
* * [misc]simplify:  iters left: 5 (147 enodes)
* * [misc]simplify:  iters left: 4 (415 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (* (* x2 (- x1 x2)) (* (- x1 x2) (- x1 x2))) (* (* (+ x4 x3) (+ x4 x3)) (* (+ x4 x3) x2))) (+ (* x2 x4) (+ (+ x2 x1) (- x3 x4)))) (+ (* (+ (- x3 x4) (- x1)) (+ (- x1) (- (- x3 x4) x2))) (* x2 x2))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- x1 x2) (- (- x1 x2) (+ x4 x3)))) (+ (* x2 x4) (+ (+ x2 x1) (- x3 x4)))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x1) (- (- x3 x4) x2))) (* x2 x2)) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (+ (* (+ x4 x3) (+ x4 x3)) (* (- x1 x2) (- (- x1 x2) (+ x4 x3))))))
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (* (* x2 (- x1 x2)) (* (- x1 x2) (- x1 x2))) (* (* (+ x4 x3) (+ x4 x3)) (* (+ x4 x3) x2))) (+ (* x2 x4) (+ (+ x2 x1) (- x3 x4)))) (+ (* (+ (- x3 x4) (- x1)) (+ (- x1) (- (- x3 x4) x2))) (* x2 x2))) (* (* (+ (* (+ x4 x3) (+ x4 x3)) (* (- x1 x2) (- (- x1 x2) (+ x4 x3)))) (+ (* x2 x4) (+ (+ x2 x1) (- x3 x4)))) (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (* (+ (* (+ (- x3 x4) (- x1)) (+ (- x1) (- (- x3 x4) x2))) (* x2 x2)) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (+ (* (+ x4 x3) (+ x4 x3)) (* (- x1 x2) (- (- x1 x2) (+ x4 x3))))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (81 enodes)
* * [misc]simplify:  iters left: 4 (229 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* (- x1 x2) (- (- x1 x2) (+ x3 x4))) (* (+ x3 x4) (+ x3 x4))) (+ (+ (- x3 x4) (+ x2 x1)) (* x4 x2))) (+ (* (+ (- (- x1) x2) (- x3 x4)) (+ (- x3 x4) (- x1))) (* x2 x2)))
* [exit]simplify:  Simplified to (* (* (+ (* (- x1 x2) (- (- x1 x2) (+ x3 x4))) (* (+ x3 x4) (+ x3 x4))) (+ (+ (- x3 x4) (+ x2 x1)) (* x4 x2))) (+ (* (+ (- (- x1) x2) (- x3 x4)) (+ (- x3 x4) (- x1))) (* x2 x2)))
* * * * [misc]progress:  [ 115 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (- (+ x3 x4) (- x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (+ (pow x2 3) (pow (+ (- x1) (- x3 x4)) 3)) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (- (+ x3 x4) (- x1 x2))) (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (40 enodes)
* * [misc]simplify:  iters left: 5 (126 enodes)
* * [misc]simplify:  iters left: 4 (365 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- (+ x4 x3) (- x1 x2)) (* (+ (- x1 x2) (+ x4 x3)) x2)) (+ (+ (* x2 x4) (+ x2 x1)) (- x3 x4))) (+ (* (+ (- x1) (- (- x3 x4) x2)) (+ (- x3 x4) (- x1))) (* x2 x2))) (* (+ (* (+ (* (+ (- x1) (- (- x3 x4) x2)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (* (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (+ (+ (* x2 x4) (+ x2 x1)) (- x3 x4)))) (- (+ x4 x3) (- x1 x2))))
* [exit]simplify:  Simplified to (+ (* (* (* (- (+ x4 x3) (- x1 x2)) (* (+ (- x1 x2) (+ x4 x3)) x2)) (+ (+ (* x2 x4) (+ x2 x1)) (- x3 x4))) (+ (* (+ (- x1) (- (- x3 x4) x2)) (+ (- x3 x4) (- x1))) (* x2 x2))) (* (+ (* (+ (* (+ (- x1) (- (- x3 x4) x2)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4)))))) (* (* (* x1 x4) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (+ (+ (* x2 x4) (+ x2 x1)) (- x3 x4)))) (- (+ x4 x3) (- x1 x2))))
* [enter]simplify:  Simplifying (* (* (+ (* x2 x2) (- (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4))) (* x2 (+ (- x1) (- x3 x4))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (63 enodes)
* * [misc]simplify:  iters left: 4 (179 enodes)
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (+ (+ (+ x2 x1) (* x4 x2)) (- x3 x4)) (- (+ x3 x4) (- x1 x2))))
* [exit]simplify:  Simplified to (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (+ (+ (+ x2 x1) (* x4 x2)) (- x3 x4)) (- (+ x3 x4) (- x1 x2))))
* * * * [misc]progress:  [ 116 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (59 enodes)
* * [misc]simplify:  iters left: 5 (174 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- x2 (+ (- x3 x4) (- x1))) (+ (* x2 x2) (* x1 (- x1 x2)))) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (+ (* x4 (- x4 x3)) (* x3 x3)) (* (- (pow x1 3) (pow x2 3)) x2)) (* (+ (* x1 x1) (* (+ x2 x1) x2)) (* (+ (pow x4 3) (pow x3 3)) x2)))) (* (* (+ (* x1 x1) (* (+ x2 x1) x2)) (+ (* x4 (- x4 x3)) (* x3 x3))) (+ (* (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))))) (* (- (* (+ (pow x1 3) (pow x2 3)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3)))) (* x3 (- x2 (+ (- x3 x4) (- x1))))))))
* [exit]simplify:  Simplified to (+ (* (* (* (- x2 (+ (- x3 x4) (- x1))) (+ (* x2 x2) (* x1 (- x1 x2)))) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (+ (* x4 (- x4 x3)) (* x3 x3)) (* (- (pow x1 3) (pow x2 3)) x2)) (* (+ (* x1 x1) (* (+ x2 x1) x2)) (* (+ (pow x4 3) (pow x3 3)) x2)))) (* (* (+ (* x1 x1) (* (+ x2 x1) x2)) (+ (* x4 (- x4 x3)) (* x3 x3))) (+ (* (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))))) (* (- (* (+ (pow x1 3) (pow x2 3)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3)))) (* x3 (- x2 (+ (- x3 x4) (- x1))))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (31 enodes)
* * [misc]simplify:  iters left: 5 (80 enodes)
* * [misc]simplify:  iters left: 4 (203 enodes)
* [exit]simplify:  Simplified to (* (* (* (+ (* x3 x3) (* x4 (- x4 x3))) (+ (* x1 x1) (* x2 (+ x1 x2)))) (* (+ (* (- x1 x2) x1) (* x2 x2)) (- (- x2 (- x1)) (- x3 x4)))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))))
* [exit]simplify:  Simplified to (* (* (* (+ (* x3 x3) (* x4 (- x4 x3))) (+ (* x1 x1) (* x2 (+ x1 x2)))) (* (+ (* (- x1 x2) x1) (* x2 x2)) (- (- x2 (- x1)) (- x3 x4)))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))))
* * * * [misc]progress:  [ 117 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (57 enodes)
* * [misc]simplify:  iters left: 5 (170 enodes)
* * [misc]simplify:  iters left: 4 (465 enodes)
* [exit]simplify:  Simplified to (+ (* (* (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))) (* (- x2 (+ (- x3 x4) (- x1))) (- (* x1 x1) (* x2 (- x1 x2))))) (+ (* (* x2 (+ x2 x1)) (+ (pow x3 3) (pow x4 3))) (* (* x2 (- (* x1 x1) (* x2 x2))) (- (* x4 x4) (* x3 (- x4 x3)))))) (* (+ (* (* (+ x2 (+ (- x3 x4) (- x1))) (* (- x2 (+ (- x3 x4) (- x1))) (* x1 x4))) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))) (* (- (* (+ (pow x1 3) (pow x2 3)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4))))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3)))) (* x3 (- x2 (+ (- x3 x4) (- x1)))))) (* (- (* x4 x4) (* x3 (- x4 x3))) (+ x2 x1))))
* [exit]simplify:  Simplified to (+ (* (* (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))) (* (- x2 (+ (- x3 x4) (- x1))) (- (* x1 x1) (* x2 (- x1 x2))))) (+ (* (* x2 (+ x2 x1)) (+ (pow x3 3) (pow x4 3))) (* (* x2 (- (* x1 x1) (* x2 x2))) (- (* x4 x4) (* x3 (- x4 x3)))))) (* (+ (* (* (+ x2 (+ (- x3 x4) (- x1))) (* (- x2 (+ (- x3 x4) (- x1))) (* x1 x4))) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))) (* (- (* (+ (pow x1 3) (pow x2 3)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4))))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3)))) (* x3 (- x2 (+ (- x3 x4) (- x1)))))) (* (- (* x4 x4) (* x3 (- x4 x3))) (+ x2 x1))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (75 enodes)
* * [misc]simplify:  iters left: 4 (188 enodes)
* * [misc]simplify:  iters left: 3 (483 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* (- x3 x4) (- x3 x4)) (* (* x2 x4) (- (* x2 x4) (- x3 x4)))) (* (+ (* (- x1 x2) x1) (* x2 x2)) (+ (- (- x2 x3) (- x1)) x4))) (* (+ x1 x2) (+ (* x3 x3) (* x4 (- x4 x3)))))
* [exit]simplify:  Simplified to (* (* (+ (* (- x3 x4) (- x3 x4)) (* (* x2 x4) (- (* x2 x4) (- x3 x4)))) (* (+ (* (- x1 x2) x1) (* x2 x2)) (+ (- (- x2 x3) (- x1)) x4))) (* (+ x1 x2) (+ (* x3 x3) (* x4 (- x4 x3)))))
* * * * [misc]progress:  [ 118 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (54 enodes)
* * [misc]simplify:  iters left: 5 (161 enodes)
* * [misc]simplify:  iters left: 4 (414 enodes)
* [exit]simplify:  Simplified to (+ (* (* (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))) (* (- (- x2 (- x1)) (- x3 x4)) (+ (* x2 x2) (* x1 (- x1 x2))))) (* (+ (* (- (pow x1 3) (pow x2 3)) (- x3 x4)) (* (+ (* (+ x2 x1) x2) (* x1 x1)) (- (* x3 x3) (* x4 x4)))) x2)) (* (* (+ (* (+ x2 x1) x2) (* x1 x1)) (- x3 x4)) (+ (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (* (+ (pow x1 3) (pow x2 3)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4))))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3))))))))
* [exit]simplify:  Simplified to (+ (* (* (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))) (* (- (- x2 (- x1)) (- x3 x4)) (+ (* x2 x2) (* x1 (- x1 x2))))) (* (+ (* (- (pow x1 3) (pow x2 3)) (- x3 x4)) (* (+ (* (+ x2 x1) x2) (* x1 x1)) (- (* x3 x3) (* x4 x4)))) x2)) (* (* (+ (* (+ x2 x1) x2) (* x1 x1)) (- x3 x4)) (+ (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (* (+ (pow x1 3) (pow x2 3)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4))))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3))))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (26 enodes)
* * [misc]simplify:  iters left: 5 (69 enodes)
* * [misc]simplify:  iters left: 4 (172 enodes)
* * [misc]simplify:  iters left: 3 (413 enodes)
* [exit]simplify:  Simplified to (* (* (* (+ (* (- x1 x2) x1) (* x2 x2)) (+ (- x2 x3) (- x4 (- x1)))) (+ (* (- x3 x4) (- x3 x4)) (* (* x2 x4) (- (* x2 x4) (- x3 x4))))) (* (- x3 x4) (+ (* x1 x1) (* x2 (+ x1 x2)))))
* [exit]simplify:  Simplified to (* (* (* (+ (* (- x1 x2) x1) (* x2 x2)) (+ (- x2 x3) (- x4 (- x1)))) (+ (* (- x3 x4) (- x3 x4)) (* (* x2 x4) (- (* x2 x4) (- x3 x4))))) (* (- x3 x4) (+ (* x1 x1) (* x2 (+ x1 x2)))))
* * * * [misc]progress:  [ 119 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (52 enodes)
* * [misc]simplify:  iters left: 5 (157 enodes)
* * [misc]simplify:  iters left: 4 (395 enodes)
* [exit]simplify:  Simplified to (+ (* (* (- x3 x4) (+ x2 x1)) (+ (* (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))) (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (* (+ (pow x1 3) (pow x2 3)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4))))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3))))))) (* (* (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))) (* (+ (- x2 x3) (- x4 (- x1))) (- (* x1 x1) (* x2 (- x1 x2))))) (* (* (- x3 x4) (+ (* (+ x3 x4) (+ x2 x1)) (- (* x1 x1) (* x2 x2)))) x2)))
* [exit]simplify:  Simplified to (+ (* (* (- x3 x4) (+ x2 x1)) (+ (* (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))) (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (* (+ (pow x1 3) (pow x2 3)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4))))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3))))))) (* (* (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))) (* (+ (- x2 x3) (- x4 (- x1))) (- (* x1 x1) (* x2 (- x1 x2))))) (* (* (- x3 x4) (+ (* (+ x3 x4) (+ x2 x1)) (- (* x1 x1) (* x2 x2)))) x2)))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (152 enodes)
* * [misc]simplify:  iters left: 3 (335 enodes)
* [exit]simplify:  Simplified to (* (* (* (+ x1 x2) (- x3 x4)) (- (- x2 (- x3 x4)) (- x1))) (* (+ (* (- x3 x4) (- x3 x4)) (* (* x2 x4) (- (* x2 x4) (- x3 x4)))) (+ (* x1 (- x1 x2)) (* x2 x2))))
* [exit]simplify:  Simplified to (* (* (* (+ x1 x2) (- x3 x4)) (- (- x2 (- x3 x4)) (- x1))) (* (+ (* (- x3 x4) (- x3 x4)) (* (* x2 x4) (- (* x2 x4) (- x3 x4)))) (+ (* x1 (- x1 x2)) (* x2 x2))))
* * * * [misc]progress:  [ 120 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (53 enodes)
* * [misc]simplify:  iters left: 5 (160 enodes)
* * [misc]simplify:  iters left: 4 (473 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (+ (* (* (- x1 x2) (- x1 x2)) (* x2 (- x1 x2))) (* (* x2 (+ x3 x4)) (* (+ x3 x4) (+ x3 x4)))) (* (* (- (- x2 (- x1)) (- x3 x4)) (- (* x1 x1) (* x2 (- x1 x2)))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))) (* (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4))))) (* (* (* x1 x4) (- (* x1 x1) (* x2 (- x1 x2)))) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))))) (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (* (+ (pow x1 3) (pow x2 3)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4))))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3)))))))
* [exit]simplify:  Simplified to (+ (+ (* (+ (* (* (- x1 x2) (- x1 x2)) (* x2 (- x1 x2))) (* (* x2 (+ x3 x4)) (* (+ x3 x4) (+ x3 x4)))) (* (* (- (- x2 (- x1)) (- x3 x4)) (- (* x1 x1) (* x2 (- x1 x2)))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))) (* (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4))))) (* (* (* x1 x4) (- (* x1 x1) (* x2 (- x1 x2)))) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))))) (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (* (+ (pow x1 3) (pow x2 3)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4))))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3)))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (78 enodes)
* * [misc]simplify:  iters left: 4 (196 enodes)
* * [misc]simplify:  iters left: 3 (476 enodes)
* [exit]simplify:  Simplified to (* (* (* (+ (* x1 (- x1 x2)) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))) (+ (* (- x3 x4) (- x3 x4)) (* (* x2 x4) (- (* x2 x4) (- x3 x4))))) (+ (* (+ x3 x4) (+ x3 x4)) (* (- (- x1 x2) (+ x3 x4)) (- x1 x2))))
* [exit]simplify:  Simplified to (* (* (* (+ (* x1 (- x1 x2)) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))) (+ (* (- x3 x4) (- x3 x4)) (* (* x2 x4) (- (* x2 x4) (- x3 x4))))) (+ (* (+ x3 x4) (+ x3 x4)) (* (- (- x1 x2) (+ x3 x4)) (- x1 x2))))
* * * * [misc]progress:  [ 121 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (- (+ x3 x4) (- x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (- (+ x3 x4) (- x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (49 enodes)
* * [misc]simplify:  iters left: 5 (139 enodes)
* * [misc]simplify:  iters left: 4 (392 enodes)
* [exit]simplify:  Simplified to (+ (* (- (+ x3 x4) (- x1 x2)) (+ (* (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))))) (* (- (* (+ (pow x1 3) (pow x2 3)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3)))) (* x3 (+ (- x2 x3) (- x4 (- x1))))))) (* (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (* (- (+ x3 x4) (- x1 x2)) (+ (- x1 x2) (+ x3 x4))) x2)) (* (+ (- x2 x3) (- x4 (- x1))) (- (* x1 x1) (* x2 (- x1 x2))))))
* [exit]simplify:  Simplified to (+ (* (- (+ x3 x4) (- x1 x2)) (+ (* (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))))) (* (- (* (+ (pow x1 3) (pow x2 3)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (* x4 x2) 3) (pow (- x3 x4) 3)))) (* x3 (+ (- x2 x3) (- x4 (- x1))))))) (* (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (* (- (+ x3 x4) (- x1 x2)) (+ (- x1 x2) (+ x3 x4))) x2)) (* (+ (- x2 x3) (- x4 (- x1))) (- (* x1 x1) (* x2 (- x1 x2))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (60 enodes)
* * [misc]simplify:  iters left: 4 (151 enodes)
* * [misc]simplify:  iters left: 3 (392 enodes)
* [exit]simplify:  Simplified to (* (* (* (- (- x2 (- x1)) (- x3 x4)) (+ (+ x3 x2) (- x4 x1))) (+ (* (- x1 x2) x1) (* x2 x2))) (+ (* (- x3 x4) (- x3 x4)) (* (* x2 x4) (- (* x2 x4) (- x3 x4)))))
* [exit]simplify:  Simplified to (* (* (* (- (- x2 (- x1)) (- x3 x4)) (+ (+ x3 x2) (- x4 x1))) (+ (* (- x1 x2) x1) (* x2 x2))) (+ (* (- x3 x4) (- x3 x4)) (* (* x2 x4) (- (* x2 x4) (- x3 x4)))))
* * * * [misc]progress:  [ 122 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (55 enodes)
* * [misc]simplify:  iters left: 5 (143 enodes)
* * [misc]simplify:  iters left: 4 (398 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- (- x3 x4) (* x4 x2)) x2) (* (+ (* x2 x2) (* (- x1 x2) x1)) (- x2 (+ (- x3 x4) (- x1))))) (+ (* (- (* x4 x4) (* x3 (- x4 x3))) (- (pow x1 3) (pow x2 3))) (* (+ (* x1 x1) (* x2 (+ x2 x1))) (+ (pow x3 3) (pow x4 3))))) (* (* (+ (* x1 x1) (* x2 (+ x2 x1))) (- (* x4 x4) (* x3 (- x4 x3)))) (+ (* (* x3 (- x2 (+ (- x3 x4) (- x1)))) (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))) (+ (* x2 x2) (* (- x1 x2) x1))))) (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (- (- x3 x4) (* x4 x2))) (* (* (- x2 (+ (- x3 x4) (- x1))) (+ x2 (+ (- x3 x4) (- x1)))) (* x1 x4))))))
* [exit]simplify:  Simplified to (+ (* (* (* (- (- x3 x4) (* x4 x2)) x2) (* (+ (* x2 x2) (* (- x1 x2) x1)) (- x2 (+ (- x3 x4) (- x1))))) (+ (* (- (* x4 x4) (* x3 (- x4 x3))) (- (pow x1 3) (pow x2 3))) (* (+ (* x1 x1) (* x2 (+ x2 x1))) (+ (pow x3 3) (pow x4 3))))) (* (* (+ (* x1 x1) (* x2 (+ x2 x1))) (- (* x4 x4) (* x3 (- x4 x3)))) (+ (* (* x3 (- x2 (+ (- x3 x4) (- x1)))) (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))) (+ (* x2 x2) (* (- x1 x2) x1))))) (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (- (- x3 x4) (* x4 x2))) (* (* (- x2 (+ (- x3 x4) (- x1))) (+ x2 (+ (- x3 x4) (- x1)))) (* x1 x4))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (27 enodes)
* * [misc]simplify:  iters left: 5 (63 enodes)
* * [misc]simplify:  iters left: 4 (168 enodes)
* * [misc]simplify:  iters left: 3 (493 enodes)
* [exit]simplify:  Simplified to (* (- x2 (+ (- x1) (- x3 x4))) (* (* (+ (* x1 x1) (* x2 (+ x1 x2))) (+ (* (- x4 x3) x4) (* x3 x3))) (* (+ (* (- x1 x2) x1) (* x2 x2)) (- (- x3 x4) (* x2 x4)))))
* [exit]simplify:  Simplified to (* (- x2 (+ (- x1) (- x3 x4))) (* (* (+ (* x1 x1) (* x2 (+ x1 x2))) (+ (* (- x4 x3) x4) (* x3 x3))) (* (+ (* (- x1 x2) x1) (* x2 x2)) (- (- x3 x4) (* x2 x4)))))
* * * * [misc]progress:  [ 123 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (53 enodes)
* * [misc]simplify:  iters left: 5 (139 enodes)
* * [misc]simplify:  iters left: 4 (341 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ x2 x1) (+ (* x3 x3) (* x4 (- x4 x3)))) (+ (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))) (- (* x1 x1) (* x2 (- x1 x2)))))) (* (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x3 x4) (* x4 x2))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))))) (* (* (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x2 (- x1)) (- x3 x4))) (- (- x3 x4) (* x4 x2))) (+ (* (* x2 (+ x2 x1)) (+ (pow x4 3) (pow x3 3))) (* (* (* x2 (+ x2 x1)) (- x1 x2)) (+ (* x3 x3) (* x4 (- x4 x3)))))))
* [exit]simplify:  Simplified to (+ (* (* (+ x2 x1) (+ (* x3 x3) (* x4 (- x4 x3)))) (+ (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))) (- (* x1 x1) (* x2 (- x1 x2)))))) (* (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x3 x4) (* x4 x2))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))))) (* (* (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x2 (- x1)) (- x3 x4))) (- (- x3 x4) (* x4 x2))) (+ (* (* x2 (+ x2 x1)) (+ (pow x4 3) (pow x3 3))) (* (* (* x2 (+ x2 x1)) (- x1 x2)) (+ (* x3 x3) (* x4 (- x4 x3)))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (58 enodes)
* * [misc]simplify:  iters left: 4 (132 enodes)
* * [misc]simplify:  iters left: 3 (287 enodes)
* [exit]simplify:  Simplified to (* (+ x1 x2) (* (* (+ (* (- x1 x2) x1) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))) (* (- (- x3 x4) (* x2 x4)) (+ (* x4 (- x4 x3)) (* x3 x3)))))
* [exit]simplify:  Simplified to (* (+ x1 x2) (* (* (+ (* (- x1 x2) x1) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))) (* (- (- x3 x4) (* x2 x4)) (+ (* x4 (- x4 x3)) (* x3 x3)))))
* * * * [misc]progress:  [ 124 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (50 enodes)
* * [misc]simplify:  iters left: 5 (129 enodes)
* * [misc]simplify:  iters left: 4 (292 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))) (+ (* x2 x2) (* (- x1 x2) x1))))) (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (- (- x3 x4) (* x4 x2))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)))) (* (+ (* x1 x1) (* (+ x2 x1) x2)) (- x3 x4))) (* (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (- x2 x3) (- x4 (- x1)))) (* (- (- x3 x4) (* x4 x2)) x2)) (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (* (+ x2 x1) x2))) (* (- (pow x1 3) (pow x2 3)) (- x3 x4)))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))) (+ (* x2 x2) (* (- x1 x2) x1))))) (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (- (- x3 x4) (* x4 x2))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)))) (* (+ (* x1 x1) (* (+ x2 x1) x2)) (- x3 x4))) (* (* (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (- x2 x3) (- x4 (- x1)))) (* (- (- x3 x4) (* x4 x2)) x2)) (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (* (+ x2 x1) x2))) (* (- (pow x1 3) (pow x2 3)) (- x3 x4)))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (22 enodes)
* * [misc]simplify:  iters left: 5 (52 enodes)
* * [misc]simplify:  iters left: 4 (122 enodes)
* * [misc]simplify:  iters left: 3 (260 enodes)
* [exit]simplify:  Simplified to (* (* (* (- x3 x4) (- (- x3 x4) (* x2 x4))) (+ (* x1 (+ x1 x2)) (* x2 x2))) (* (+ (* x1 (- x1 x2)) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))))
* [exit]simplify:  Simplified to (* (* (* (- x3 x4) (- (- x3 x4) (* x2 x4))) (+ (* x1 (+ x1 x2)) (* x2 x2))) (* (+ (* x1 (- x1 x2)) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))))
* * * * [misc]progress:  [ 125 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (48 enodes)
* * [misc]simplify:  iters left: 5 (125 enodes)
* * [misc]simplify:  iters left: 4 (263 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- (- x3 x4) (* x4 x2)) (+ (- x2 x3) (- x4 (- x1)))) (+ (* x2 x2) (* x1 (- x1 x2)))) (* (* (- x3 x4) (+ (- (* x1 x1) (* x2 x2)) (* (+ x2 x1) (+ x3 x4)))) x2)) (* (* (+ x2 x1) (- x3 x4)) (+ (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))) (+ (* x2 x2) (* x1 (- x1 x2)))))) (* (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (- x3 x4) (* x4 x2))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4))))))
* [exit]simplify:  Simplified to (+ (* (* (* (- (- x3 x4) (* x4 x2)) (+ (- x2 x3) (- x4 (- x1)))) (+ (* x2 x2) (* x1 (- x1 x2)))) (* (* (- x3 x4) (+ (- (* x1 x1) (* x2 x2)) (* (+ x2 x1) (+ x3 x4)))) x2)) (* (* (+ x2 x1) (- x3 x4)) (+ (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))) (+ (* x2 x2) (* x1 (- x1 x2)))))) (* (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (- x3 x4) (* x4 x2))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (47 enodes)
* * [misc]simplify:  iters left: 4 (97 enodes)
* * [misc]simplify:  iters left: 3 (204 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* (- x1 x2) x1) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))) (* (- (- x3 x4) (* x2 x4)) (* (- x3 x4) (+ x1 x2))))
* [exit]simplify:  Simplified to (* (* (+ (* (- x1 x2) x1) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))) (* (- (- x3 x4) (* x2 x4)) (* (- x3 x4) (+ x1 x2))))
* * * * [misc]progress:  [ 126 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (49 enodes)
* * [misc]simplify:  iters left: 5 (128 enodes)
* * [misc]simplify:  iters left: 4 (327 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (- (- x3 x4) (* x4 x2)) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (- x2 x3) (- x4 (- x1))))) (+ (* (* (- x1 x2) x2) (* (- x1 x2) (- x1 x2))) (* (* x2 (+ x3 x4)) (* (+ x3 x4) (+ x3 x4))))) (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (- x3 x4) (* x4 x2))) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4))))))) (* (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))) (+ (* x2 x2) (* x1 (- x1 x2))))) (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4)))))))
* [exit]simplify:  Simplified to (+ (+ (* (* (- (- x3 x4) (* x4 x2)) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (- x2 x3) (- x4 (- x1))))) (+ (* (* (- x1 x2) x2) (* (- x1 x2) (- x1 x2))) (* (* x2 (+ x3 x4)) (* (+ x3 x4) (+ x3 x4))))) (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (- x3 x4) (* x4 x2))) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4))))))) (* (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2))) (+ (* x2 x2) (* x1 (- x1 x2))))) (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4)))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (61 enodes)
* * [misc]simplify:  iters left: 4 (138 enodes)
* * [misc]simplify:  iters left: 3 (359 enodes)
* [exit]simplify:  Simplified to (* (* (* (+ (* (- x1 x2) x1) (* x2 x2)) (- (- x2 (- x3 x4)) (- x1))) (- (- x3 x4) (* x2 x4))) (- (* (- x1 x2) (- x1 x2)) (* (- (- x1 x2) (+ x3 x4)) (+ x3 x4))))
* [exit]simplify:  Simplified to (* (* (* (+ (* (- x1 x2) x1) (* x2 x2)) (- (- x2 (- x3 x4)) (- x1))) (- (- x3 x4) (* x2 x4))) (- (* (- x1 x2) (- x1 x2)) (* (- (- x1 x2) (+ x3 x4)) (+ x3 x4))))
* * * * [misc]progress:  [ 127 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (- (+ x3 x4) (- x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ (pow x2 3) (pow x1 3)) (- (- x3 x4) (* x4 x2))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (- (+ x3 x4) (- x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (45 enodes)
* * [misc]simplify:  iters left: 5 (107 enodes)
* * [misc]simplify:  iters left: 4 (271 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x4 x2) (- x3 x4)) (- (- x3 x4) (* x4 x2))) (- (* x1 x1) (* x2 (- x1 x2))))) (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (+ x3 x4) (- x1 x2)))) (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x3 x4) (* x4 x2))) (- (+ x3 x4) (- x1 x2))))) (* (* (* (- (- x3 x4) (* x4 x2)) x2) (* (- (+ x3 x4) (- x1 x2)) (+ (+ x3 x4) (- x1 x2)))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (- x2 x3) (- x4 (- x1))))))
* [exit]simplify:  Simplified to (+ (+ (* (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x4 x2) (- x3 x4)) (- (- x3 x4) (* x4 x2))) (- (* x1 x1) (* x2 (- x1 x2))))) (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (+ x3 x4) (- x1 x2)))) (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (* (- (* x1 x1) (* x2 (- x1 x2))) (- (- x3 x4) (* x4 x2))) (- (+ x3 x4) (- x1 x2))))) (* (* (* (- (- x3 x4) (* x4 x2)) x2) (* (- (+ x3 x4) (- x1 x2)) (+ (+ x3 x4) (- x1 x2)))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (- x2 x3) (- x4 (- x1))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (* x2 x2) (- (* x1 x1) (* x2 x1))) (- (- x3 x4) (* x4 x2)))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (43 enodes)
* * [misc]simplify:  iters left: 4 (96 enodes)
* * [misc]simplify:  iters left: 3 (241 enodes)
* [exit]simplify:  Simplified to (* (* (- (+ (- x2 x3) x4) (- x1)) (+ (+ x2 x4) (- x3 x1))) (* (+ (* (- x1 x2) x1) (* x2 x2)) (- (- x3 x4) (* x2 x4))))
* [exit]simplify:  Simplified to (* (* (- (+ (- x2 x3) x4) (- x1)) (+ (+ x2 x4) (- x3 x1))) (* (+ (* (- x1 x2) x1) (* x2 x2)) (- (- x3 x4) (* x2 x4))))
* * * * [misc]progress:  [ 128 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (57 enodes)
* * [misc]simplify:  iters left: 5 (168 enodes)
* * [misc]simplify:  iters left: 4 (415 enodes)
* [exit]simplify:  Simplified to (+ (* (* (- (* x4 x4) (* x3 (- x4 x3))) (+ (* x1 x1) (* x2 (+ x2 x1)))) (+ (* (* x3 (- x2 (+ (- x3 x4) (- x1)))) (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (- x2 x1) (pow (* x4 x2) 3)) (* (* (- x3 x4) (- x3 x4)) (* (- x3 x4) (- x2 x1)))))) (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (* (- x2 x1) (+ x2 (+ (- x3 x4) (- x1)))) (* (- x2 (+ (- x3 x4) (- x1))) (* x1 x4)))))) (* (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (- x2 (+ (- x3 x4) (- x1))) (- x2 x1))) (+ (* (- (* x4 x4) (* x3 (- x4 x3))) (* (- (pow x1 3) (pow x2 3)) x2)) (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (* x2 (+ (pow x3 3) (pow x4 3)))))))
* [exit]simplify:  Simplified to (+ (* (* (- (* x4 x4) (* x3 (- x4 x3))) (+ (* x1 x1) (* x2 (+ x2 x1)))) (+ (* (* x3 (- x2 (+ (- x3 x4) (- x1)))) (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (- x2 x1) (pow (* x4 x2) 3)) (* (* (- x3 x4) (- x3 x4)) (* (- x3 x4) (- x2 x1)))))) (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (* (- x2 x1) (+ x2 (+ (- x3 x4) (- x1)))) (* (- x2 (+ (- x3 x4) (- x1))) (* x1 x4)))))) (* (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (- x2 (+ (- x3 x4) (- x1))) (- x2 x1))) (+ (* (- (* x4 x4) (* x3 (- x4 x3))) (* (- (pow x1 3) (pow x2 3)) x2)) (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (* x2 (+ (pow x3 3) (pow x4 3)))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (74 enodes)
* * [misc]simplify:  iters left: 4 (171 enodes)
* * [misc]simplify:  iters left: 3 (405 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* (+ x1 x2) x2) (* x1 x1)) (+ (* x4 (- x4 x3)) (* x3 x3))) (* (* (- x2 x1) (- x2 (+ (- x1) (- x3 x4)))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))))
* [exit]simplify:  Simplified to (* (* (+ (* (+ x1 x2) x2) (* x1 x1)) (+ (* x4 (- x4 x3)) (* x3 x3))) (* (* (- x2 x1) (- x2 (+ (- x1) (- x3 x4)))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))))
* * * * [misc]progress:  [ 129 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (53 enodes)
* * [misc]simplify:  iters left: 5 (158 enodes)
* * [misc]simplify:  iters left: 4 (346 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ x2 x1) (- (* x4 x4) (* x3 (- x4 x3)))) (+ (* (+ (* (* (- x2 x1) (+ x2 x1)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (- (* (* (- x2 x1) (+ x2 x1)) (* (- x3 x4) (- x3 x4))) (+ (* (- x2 x1) (pow (* x4 x2) 3)) (* (* (- x3 x4) (- x3 x4)) (* (- x3 x4) (- x2 x1)))))) (* x3 (- (- x2 (- x1)) (- x3 x4)))) (* (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))) (* (* (- x2 x1) (+ x2 (+ (- x3 x4) (- x1)))) (* (- (- x2 (- x1)) (- x3 x4)) (* x1 x4)))))) (* (* (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))) (* (- (- x2 (- x1)) (- x3 x4)) (- x2 x1))) (+ (* (+ (pow x4 3) (pow x3 3)) (* x2 (+ x2 x1))) (* (* x2 (* (- x1 x2) (+ x2 x1))) (- (* x4 x4) (* x3 (- x4 x3)))))))
* [exit]simplify:  Simplified to (+ (* (* (+ x2 x1) (- (* x4 x4) (* x3 (- x4 x3)))) (+ (* (+ (* (* (- x2 x1) (+ x2 x1)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (- (* (* (- x2 x1) (+ x2 x1)) (* (- x3 x4) (- x3 x4))) (+ (* (- x2 x1) (pow (* x4 x2) 3)) (* (* (- x3 x4) (- x3 x4)) (* (- x3 x4) (- x2 x1)))))) (* x3 (- (- x2 (- x1)) (- x3 x4)))) (* (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))) (* (* (- x2 x1) (+ x2 (+ (- x3 x4) (- x1)))) (* (- (- x2 (- x1)) (- x3 x4)) (* x1 x4)))))) (* (* (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))) (* (- (- x2 (- x1)) (- x3 x4)) (- x2 x1))) (+ (* (+ (pow x4 3) (pow x3 3)) (* x2 (+ x2 x1))) (* (* x2 (* (- x1 x2) (+ x2 x1))) (- (* x4 x4) (* x3 (- x4 x3)))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (65 enodes)
* * [misc]simplify:  iters left: 4 (138 enodes)
* * [misc]simplify:  iters left: 3 (312 enodes)
* [exit]simplify:  Simplified to (* (* (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ x1 x2)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (- x2 x1) (- (- x2 (- x3 x4)) (- x1))))
* [exit]simplify:  Simplified to (* (* (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ x1 x2)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (- x2 x1) (- (- x2 (- x3 x4)) (- x1))))
* * * * [misc]progress:  [ 130 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (52 enodes)
* * [misc]simplify:  iters left: 5 (155 enodes)
* * [misc]simplify:  iters left: 4 (323 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (+ (- x2 x3) (- x4 (- x1))) (- x2 x1))) (* (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x2 (+ x2 x1)) (* x1 x1))) (* (- (pow x1 3) (pow x2 3)) (- x3 x4))) x2)) (* (+ (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (* (* (- x2 x1) (+ x2 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (* (- x3 x4) (- x3 x4)) (* (- x3 x4) (- x2 x1))) (* (- x2 x1) (pow (* x4 x2) 3))))) (* (+ (* (* (- x2 x1) (* x4 x2)) (- (* x4 x2) (- x3 x4))) (* (- x3 x4) (* (- x3 x4) (- x2 x1)))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)))) (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (- x3 x4))))
* [exit]simplify:  Simplified to (+ (* (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (+ (- x2 x3) (- x4 (- x1))) (- x2 x1))) (* (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x2 (+ x2 x1)) (* x1 x1))) (* (- (pow x1 3) (pow x2 3)) (- x3 x4))) x2)) (* (+ (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (* (* (- x2 x1) (+ x2 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (* (- x3 x4) (- x3 x4)) (* (- x3 x4) (- x2 x1))) (* (- x2 x1) (pow (* x4 x2) 3))))) (* (+ (* (* (- x2 x1) (* x4 x2)) (- (* x4 x2) (- x3 x4))) (* (- x3 x4) (* (- x3 x4) (- x2 x1)))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)))) (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (- x3 x4))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (63 enodes)
* * [misc]simplify:  iters left: 4 (135 enodes)
* * [misc]simplify:  iters left: 3 (251 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* (+ x1 x2) x2) (* x1 x1)) (- x3 x4)) (* (* (- x2 x1) (- x2 (+ (- x1) (- x3 x4)))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))))
* [exit]simplify:  Simplified to (* (* (+ (* (+ x1 x2) x2) (* x1 x1)) (- x3 x4)) (* (* (- x2 x1) (- x2 (+ (- x1) (- x3 x4)))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))))
* * * * [misc]progress:  [ 131 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (* (- x3 x4) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (48 enodes)
* * [misc]simplify:  iters left: 5 (145 enodes)
* * [misc]simplify:  iters left: 4 (268 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- x3 x4) (+ (* (+ x2 x1) (- x1 x2)) (* (+ x3 x4) (+ x2 x1)))) x2) (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (- (- x2 (- x1)) (- x3 x4)) (- x2 x1)))) (* (* (+ x2 x1) (- x3 x4)) (+ (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (* (* (- x2 x1) (+ x2 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (- x2 x1) (pow (* x4 x2) 3)) (* (* (- x3 x4) (- x2 x1)) (* (- x3 x4) (- x3 x4)))))) (* (+ (* (* (- x3 x4) (- x3 x4)) (- x2 x1)) (* (* (- x2 x1) (* x4 x2)) (- (* x4 x2) (- x3 x4)))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4))))))
* [exit]simplify:  Simplified to (+ (* (* (* (- x3 x4) (+ (* (+ x2 x1) (- x1 x2)) (* (+ x3 x4) (+ x2 x1)))) x2) (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (- (- x2 (- x1)) (- x3 x4)) (- x2 x1)))) (* (* (+ x2 x1) (- x3 x4)) (+ (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (* (* (- x2 x1) (+ x2 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (- x2 x1) (pow (* x4 x2) 3)) (* (* (- x3 x4) (- x2 x1)) (* (- x3 x4) (- x3 x4)))))) (* (+ (* (* (- x3 x4) (- x3 x4)) (- x2 x1)) (* (* (- x2 x1) (* x4 x2)) (- (* x4 x2) (- x3 x4)))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (54 enodes)
* * [misc]simplify:  iters left: 4 (106 enodes)
* * [misc]simplify:  iters left: 3 (207 enodes)
* * [misc]simplify:  iters left: 2 (460 enodes)
* [exit]simplify:  Simplified to (* (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (- x2 x1) (- (+ x4 (- x2 x3)) (- x1)))) (* (- x3 x4) (+ x1 x2)))
* [exit]simplify:  Simplified to (* (* (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))) (* (- x2 x1) (- (+ x4 (- x2 x3)) (- x1)))) (* (- x3 x4) (+ x1 x2)))
* * * * [misc]progress:  [ 132 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (49 enodes)
* * [misc]simplify:  iters left: 5 (149 enodes)
* * [misc]simplify:  iters left: 4 (331 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (* (- (- x2 (- x1)) (- x3 x4)) (- x2 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (* (- x1 x2) (- x1 x2)) (* (- x1 x2) x2)) (* (* (+ x3 x4) (+ x3 x4)) (* x2 (+ x3 x4))))) (* (* (* (- x2 x1) (+ x2 (+ (- x3 x4) (- x1)))) (* (- (- x2 (- x1)) (- x3 x4)) (* x1 x4))) (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4))))))) (* (- (* (* (+ x2 x1) (- x2 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (* (- x2 x1) (* x4 x2)) (* (* x4 x2) (* x4 x2))) (* (* (- x3 x4) (- x3 x4)) (* (- x3 x4) (- x2 x1))))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4)))))))
* [exit]simplify:  Simplified to (+ (+ (* (* (* (- (- x2 (- x1)) (- x3 x4)) (- x2 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (* (- x1 x2) (- x1 x2)) (* (- x1 x2) x2)) (* (* (+ x3 x4) (+ x3 x4)) (* x2 (+ x3 x4))))) (* (* (* (- x2 x1) (+ x2 (+ (- x3 x4) (- x1)))) (* (- (- x2 (- x1)) (- x3 x4)) (* x1 x4))) (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4))))))) (* (- (* (* (+ x2 x1) (- x2 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (* (- x2 x1) (* x4 x2)) (* (* x4 x2) (* x4 x2))) (* (* (- x3 x4) (- x3 x4)) (* (- x3 x4) (- x2 x1))))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4)))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (69 enodes)
* * [misc]simplify:  iters left: 4 (149 enodes)
* * [misc]simplify:  iters left: 3 (348 enodes)
* [exit]simplify:  Simplified to (* (* (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4)))) (* (- x2 x1) (+ (- x2 x3) (- x4 (- x1))))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))))
* [exit]simplify:  Simplified to (* (* (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4)))) (* (- x2 x1) (+ (- x2 x3) (- x4 (- x1))))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))))
* * * * [misc]progress:  [ 133 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (- (+ x3 x4) (- x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2))))) (* (- x2 x1) (+ (pow (- x3 x4) 3) (pow (* x4 x2) 3))))))) (- (+ x3 x4) (- x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (45 enodes)
* * [misc]simplify:  iters left: 5 (128 enodes)
* * [misc]simplify:  iters left: 4 (283 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (- x2 x1) (pow (* x4 x2) 3)) (* (* (- x3 x4) (- x3 x4)) (* (- x3 x4) (- x2 x1))))) (* (* x3 (- x2 (+ (- x3 x4) (- x1)))) (- (+ x3 x4) (- x1 x2)))) (* (* (- (+ x3 x4) (- x1 x2)) (+ (* (* (- x3 x4) (- x3 x4)) (- x2 x1)) (* (* (- x2 x1) (* x4 x2)) (- (* x4 x2) (- x3 x4))))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))))) (* (* (* (+ (+ x3 x4) (- x1 x2)) x2) (- (+ x3 x4) (- x1 x2))) (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (- x2 (+ (- x3 x4) (- x1))) (- x2 x1)))))
* [exit]simplify:  Simplified to (+ (+ (* (- (* (- (* x2 x2) (* x1 x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))) (+ (* (- x2 x1) (pow (* x4 x2) 3)) (* (* (- x3 x4) (- x3 x4)) (* (- x3 x4) (- x2 x1))))) (* (* x3 (- x2 (+ (- x3 x4) (- x1)))) (- (+ x3 x4) (- x1 x2)))) (* (* (- (+ x3 x4) (- x1 x2)) (+ (* (* (- x3 x4) (- x3 x4)) (- x2 x1)) (* (* (- x2 x1) (* x4 x2)) (- (* x4 x2) (- x3 x4))))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))))) (* (* (* (+ (+ x3 x4) (- x1 x2)) x2) (- (+ x3 x4) (- x1 x2))) (* (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4)))) (* (- x2 (+ (- x3 x4) (- x1))) (- x2 x1)))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (+ (* (- x3 x4) (- x3 x4)) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (51 enodes)
* * [misc]simplify:  iters left: 4 (106 enodes)
* * [misc]simplify:  iters left: 3 (197 enodes)
* [exit]simplify:  Simplified to (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (+ x2 x3) (- x4 x1)) (- x2 x1))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))))
* [exit]simplify:  Simplified to (* (* (- x2 (+ (- x1) (- x3 x4))) (* (+ (+ x2 x3) (- x4 x1)) (- x2 x1))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4)))))
* * * * [misc]progress:  [ 134 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (53 enodes)
* * [misc]simplify:  iters left: 5 (137 enodes)
* * [misc]simplify:  iters left: 4 (347 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (* x3 x3) (* x4 (- x4 x3))) (+ (* x2 (+ x2 x1)) (* x1 x1))) (+ (* (* (* (- x2 x1) (- (- x3 x4) (* x4 x2))) (+ (+ x2 (- x1)) (- x3 x4))) (* (- (- x2 (- x1)) (- x3 x4)) (* x1 x4))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (* (- x2 x1) (- (* (+ x2 x1) (- (- x3 x4) (* x4 x2))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* (+ (* x3 x3) (* x4 (- x4 x3))) (- (pow x1 3) (pow x2 3))) (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (+ (pow x4 3) (pow x3 3)))) (* (- (- x2 (- x1)) (- x3 x4)) (* (- (- x3 x4) (* x4 x2)) (* (- x2 x1) x2)))))
* [exit]simplify:  Simplified to (+ (* (* (+ (* x3 x3) (* x4 (- x4 x3))) (+ (* x2 (+ x2 x1)) (* x1 x1))) (+ (* (* (* (- x2 x1) (- (- x3 x4) (* x4 x2))) (+ (+ x2 (- x1)) (- x3 x4))) (* (- (- x2 (- x1)) (- x3 x4)) (* x1 x4))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (* (- x2 x1) (- (* (+ x2 x1) (- (- x3 x4) (* x4 x2))) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* (+ (* x3 x3) (* x4 (- x4 x3))) (- (pow x1 3) (pow x2 3))) (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (+ (pow x4 3) (pow x3 3)))) (* (- (- x2 (- x1)) (- x3 x4)) (* (- (- x3 x4) (* x4 x2)) (* (- x2 x1) x2)))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (57 enodes)
* * [misc]simplify:  iters left: 4 (131 enodes)
* * [misc]simplify:  iters left: 3 (295 enodes)
* [exit]simplify:  Simplified to (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))) (* (+ (* x2 (+ x1 x2)) (* x1 x1)) (- (* x4 x4) (* (- x4 x3) x3))))
* [exit]simplify:  Simplified to (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))) (* (+ (* x2 (+ x1 x2)) (* x1 x1)) (- (* x4 x4) (* (- x4 x3) x3))))
* * * * [misc]progress:  [ 135 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (49 enodes)
* * [misc]simplify:  iters left: 5 (126 enodes)
* * [misc]simplify:  iters left: 4 (281 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- (- x3 x4) (* x4 x2)) (* (- x2 x1) x2)) (- (- x2 (- x1)) (- x3 x4))) (+ (* (+ x2 x1) (+ (pow x3 3) (pow x4 3))) (* (* (- x1 x2) (+ x2 x1)) (+ (* x3 x3) (* x4 (- x4 x3)))))) (* (* (+ x2 x1) (+ (* x3 x3) (* x4 (- x4 x3)))) (+ (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (* (- (- x3 x4) (* x4 x2)) (- (* (- x2 x1) (+ x2 x1)) (* (- x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x3 (- (- x2 (- x1)) (- x3 x4)))))))
* [exit]simplify:  Simplified to (+ (* (* (* (- (- x3 x4) (* x4 x2)) (* (- x2 x1) x2)) (- (- x2 (- x1)) (- x3 x4))) (+ (* (+ x2 x1) (+ (pow x3 3) (pow x4 3))) (* (* (- x1 x2) (+ x2 x1)) (+ (* x3 x3) (* x4 (- x4 x3)))))) (* (* (+ x2 x1) (+ (* x3 x3) (* x4 (- x4 x3)))) (+ (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (* (- (- x3 x4) (* x4 x2)) (- (* (- x2 x1) (+ x2 x1)) (* (- x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x3 (- (- x2 (- x1)) (- x3 x4)))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (48 enodes)
* * [misc]simplify:  iters left: 4 (104 enodes)
* * [misc]simplify:  iters left: 3 (260 enodes)
* [exit]simplify:  Simplified to (* (- x2 (+ (- x1) (- x3 x4))) (* (- (* x4 x4) (* x3 (- x4 x3))) (* (- (- x3 x4) (* x2 x4)) (* (- x2 x1) (+ x1 x2)))))
* [exit]simplify:  Simplified to (* (- x2 (+ (- x1) (- x3 x4))) (* (- (* x4 x4) (* x3 (- x4 x3))) (* (- (- x3 x4) (* x2 x4)) (* (- x2 x1) (+ x1 x2)))))
* * * * [misc]progress:  [ 136 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (48 enodes)
* * [misc]simplify:  iters left: 5 (123 enodes)
* * [misc]simplify:  iters left: 4 (252 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (- (- x3 x4) (* x4 x2)) (* (- x2 x1) x2)) (- x2 (+ (- x3 x4) (- x1)))) (+ (* (- (pow x1 3) (pow x2 3)) (- x3 x4)) (* (* (- x3 x4) (+ x3 x4)) (+ (* (+ x2 x1) x2) (* x1 x1))))) (* (+ (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (* (- (- x3 x4) (* x4 x2)) (- (* (- x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (- x2 x1)))) (* x3 (- x2 (+ (- x3 x4) (- x1)))))) (* (- x3 x4) (+ (* (+ x2 x1) x2) (* x1 x1)))))
* [exit]simplify:  Simplified to (+ (* (* (* (- (- x3 x4) (* x4 x2)) (* (- x2 x1) x2)) (- x2 (+ (- x3 x4) (- x1)))) (+ (* (- (pow x1 3) (pow x2 3)) (- x3 x4)) (* (* (- x3 x4) (+ x3 x4)) (+ (* (+ x2 x1) x2) (* x1 x1))))) (* (+ (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (* (- (- x3 x4) (* x4 x2)) (- (* (- x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (- x2 x1)))) (* x3 (- x2 (+ (- x3 x4) (- x1)))))) (* (- x3 x4) (+ (* (+ x2 x1) x2) (* x1 x1)))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (46 enodes)
* * [misc]simplify:  iters left: 4 (98 enodes)
* * [misc]simplify:  iters left: 3 (194 enodes)
* [exit]simplify:  Simplified to (* (* (- x3 x4) (+ (* x1 (+ x1 x2)) (* x2 x2))) (* (+ (- (- x2 x3) (- x1)) x4) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))))
* [exit]simplify:  Simplified to (* (* (- x3 x4) (+ (* x1 (+ x1 x2)) (* x2 x2))) (* (+ (- (- x2 x3) (- x1)) x4) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))))
* * * * [misc]progress:  [ 137 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (* (- x3 x4) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (43 enodes)
* * [misc]simplify:  iters left: 5 (111 enodes)
* * [misc]simplify:  iters left: 4 (218 enodes)
* * [misc]simplify:  iters left: 3 (485 enodes)
* [exit]simplify:  Simplified to (+ (* (* x2 (* (* (+ x2 x1) (- x3 x4)) (+ (- x1 x2) (+ x3 x4)))) (* (* (- x2 x1) (- (- x3 x4) (* x4 x2))) (- (+ (- x2 x3) x4) (- x1)))) (+ (* (* (* (+ x2 x1) (- x3 x4)) (* x3 (- (+ (- x2 x3) x4) (- x1)))) (* (- x2 x1) (* (- (- x3 x4) (* x4 x2)) (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (* (* (+ x2 x1) (- x3 x4)) (- (- x3 x4) (* x4 x2))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* (* x1 x4) (- x2 x1))))))
* [exit]simplify:  Simplified to (+ (* (* x2 (* (* (+ x2 x1) (- x3 x4)) (+ (- x1 x2) (+ x3 x4)))) (* (* (- x2 x1) (- (- x3 x4) (* x4 x2))) (- (+ (- x2 x3) x4) (- x1)))) (+ (* (* (* (+ x2 x1) (- x3 x4)) (* x3 (- (+ (- x2 x3) x4) (- x1)))) (* (- x2 x1) (* (- (- x3 x4) (* x4 x2)) (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (* (* (+ x2 x1) (- x3 x4)) (- (- x3 x4) (* x4 x2))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* (* x1 x4) (- x2 x1))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (16 enodes)
* * [misc]simplify:  iters left: 5 (37 enodes)
* * [misc]simplify:  iters left: 4 (55 enodes)
* * [misc]simplify:  iters left: 3 (92 enodes)
* * [misc]simplify:  iters left: 2 (190 enodes)
* [exit]simplify:  Simplified to (* (+ x1 x2) (* (* (* (- x2 x1) (- x3 x4)) (- (- x3 x4) (* x2 x4))) (+ x4 (- (- x2 x3) (- x1)))))
* [exit]simplify:  Simplified to (* (+ x1 x2) (* (* (* (- x2 x1) (- x3 x4)) (- (- x3 x4) (* x2 x4))) (+ x4 (- (- x2 x3) (- x1)))))
* * * * [misc]progress:  [ 138 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (45 enodes)
* * [misc]simplify:  iters left: 5 (116 enodes)
* * [misc]simplify:  iters left: 4 (269 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))) (* (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))) (* x3 (+ (- x2 x3) (- x4 (- x1))))) (* (- (- x3 x4) (* x4 x2)) (- (* (- x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (- x2 x1)))))) (* (* (* (- x2 x1) (- (- x3 x4) (* x4 x2))) (+ (- x2 x3) (- x4 (- x1)))) (+ (* (* x2 (- x1 x2)) (* (- x1 x2) (- x1 x2))) (* (* (+ x3 x4) x2) (* (+ x3 x4) (+ x3 x4))))))
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))) (* (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))) (* x3 (+ (- x2 x3) (- x4 (- x1))))) (* (- (- x3 x4) (* x4 x2)) (- (* (- x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (- x2 x1)))))) (* (* (* (- x2 x1) (- (- x3 x4) (* x4 x2))) (+ (- x2 x3) (- x4 (- x1)))) (+ (* (* x2 (- x1 x2)) (* (- x1 x2) (- x1 x2))) (* (* (+ x3 x4) x2) (* (+ x3 x4) (+ x3 x4))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (52 enodes)
* * [misc]simplify:  iters left: 4 (109 enodes)
* * [misc]simplify:  iters left: 3 (220 enodes)
* [exit]simplify:  Simplified to (* (+ (* (- x1 x2) (- (- x1 x2) (+ x3 x4))) (* (+ x3 x4) (+ x3 x4))) (* (- x2 (+ (- x1) (- x3 x4))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))))
* [exit]simplify:  Simplified to (* (+ (* (- x1 x2) (- (- x1 x2) (+ x3 x4))) (* (+ x3 x4) (+ x3 x4))) (* (- x2 (+ (- x1) (- x3 x4))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1))))
* * * * [misc]progress:  [ 139 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (- (+ x3 x4) (- x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (- (* x2 x2) (* x1 x1)) (- (- x3 x4) (* x4 x2))) (* (- x2 x1) (- (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (* x4 x2)))))))) (- (+ x3 x4) (- x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (40 enodes)
* * [misc]simplify:  iters left: 5 (94 enodes)
* * [misc]simplify:  iters left: 4 (214 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (- x2 x3) (- x4 (- x1))) (* (- (- x3 x4) (* x4 x2)) (* (- x2 x1) x2))) (* (+ (- x1 x2) (+ x3 x4)) (- (+ x3 x4) (- x1 x2)))) (+ (* (* (- (+ x3 x4) (- x1 x2)) (* x3 (+ (- x2 x3) (- x4 (- x1))))) (* (- x2 x1) (- (* (+ x2 x1) (- (- x3 x4) (* x4 x2))) (* (- (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2)))))) (* (* (- (+ x3 x4) (- x1 x2)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)))))
* [exit]simplify:  Simplified to (+ (* (* (+ (- x2 x3) (- x4 (- x1))) (* (- (- x3 x4) (* x4 x2)) (* (- x2 x1) x2))) (* (+ (- x1 x2) (+ x3 x4)) (- (+ x3 x4) (- x1 x2)))) (+ (* (* (- (+ x3 x4) (- x1 x2)) (* x3 (+ (- x2 x3) (- x4 (- x1))))) (* (- x2 x1) (- (* (+ x2 x1) (- (- x3 x4) (* x4 x2))) (* (- (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2)))))) (* (* (- (+ x3 x4) (- x1 x2)) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (* (- x2 x1) (- (- x3 x4) (* x4 x2)))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (34 enodes)
* * [misc]simplify:  iters left: 4 (67 enodes)
* * [misc]simplify:  iters left: 3 (135 enodes)
* * [misc]simplify:  iters left: 2 (424 enodes)
* [exit]simplify:  Simplified to (* (* (- (- x2 x3) (- (- x1) x4)) (+ (+ x4 x2) (- x3 x1))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1)))
* [exit]simplify:  Simplified to (* (* (- (- x2 x3) (- (- x1) x4)) (+ (+ x4 x2) (- x3 x1))) (* (- (- x3 x4) (* x2 x4)) (- x2 x1)))
* * * * [misc]progress:  [ 140 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (53 enodes)
* * [misc]simplify:  iters left: 5 (167 enodes)
* * [misc]simplify:  iters left: 4 (469 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* x3 x3) (* (- x4 x3) x4)) (- (pow x1 3) (pow x2 3))) (* (+ (pow x4 3) (pow x3 3)) (+ (* x2 (+ x2 x1)) (* x1 x1)))) (* (* x2 (- (- x2 (- x1)) (- x3 x4))) (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))))) (* (+ (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4))) (* (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)) (* x3 (- (- x2 (- x1)) (- x3 x4))))) (* (+ (* x3 x3) (* (- x4 x3) x4)) (+ (* x2 (+ x2 x1)) (* x1 x1)))))
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* x3 x3) (* (- x4 x3) x4)) (- (pow x1 3) (pow x2 3))) (* (+ (pow x4 3) (pow x3 3)) (+ (* x2 (+ x2 x1)) (* x1 x1)))) (* (* x2 (- (- x2 (- x1)) (- x3 x4))) (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))))) (* (+ (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4))) (* (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)) (* x3 (- (- x2 (- x1)) (- x3 x4))))) (* (+ (* x3 x3) (* (- x4 x3) x4)) (+ (* x2 (+ x2 x1)) (* x1 x1)))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (89 enodes)
* * [misc]simplify:  iters left: 4 (250 enodes)
* [exit]simplify:  Simplified to (* (+ (* (+ x1 x2) (+ x1 x2)) (+ (* (+ x1 x2) (+ (- x3 x4) (* x2 x4))) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4))))) (* (* (+ (- x2 x3) (- x4 (- x1))) (+ (* x2 (+ x1 x2)) (* x1 x1))) (- (* x4 x4) (* x3 (- x4 x3)))))
* [exit]simplify:  Simplified to (* (+ (* (+ x1 x2) (+ x1 x2)) (+ (* (+ x1 x2) (+ (- x3 x4) (* x2 x4))) (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4))))) (* (* (+ (- x2 x3) (- x4 (- x1))) (+ (* x2 (+ x1 x2)) (* x1 x1))) (- (* x4 x4) (* x3 (- x4 x3)))))
* * * * [misc]progress:  [ 141 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (49 enodes)
* * [misc]simplify:  iters left: 5 (156 enodes)
* * [misc]simplify:  iters left: 4 (398 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (pow x4 3) (pow x3 3)) (+ x2 x1)) (* (- (* x1 x1) (* x2 x2)) (+ (* x3 x3) (* (- x4 x3) x4)))) (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* x2 (- x2 (+ (- x3 x4) (- x1)))))) (* (+ (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* (* x1 x4) (* (- x2 (+ (- x3 x4) (- x1))) (+ x2 (+ (- x3 x4) (- x1)))))) (* (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)) (* x3 (- x2 (+ (- x3 x4) (- x1)))))) (* (+ (* x3 x3) (* (- x4 x3) x4)) (+ x2 x1))))
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (pow x4 3) (pow x3 3)) (+ x2 x1)) (* (- (* x1 x1) (* x2 x2)) (+ (* x3 x3) (* (- x4 x3) x4)))) (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* x2 (- x2 (+ (- x3 x4) (- x1)))))) (* (+ (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* (* x1 x4) (* (- x2 (+ (- x3 x4) (- x1))) (+ x2 (+ (- x3 x4) (- x1)))))) (* (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)) (* x3 (- x2 (+ (- x3 x4) (- x1)))))) (* (+ (* x3 x3) (* (- x4 x3) x4)) (+ x2 x1))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (81 enodes)
* * [misc]simplify:  iters left: 4 (247 enodes)
* * [misc]simplify:  iters left: 3 (488 enodes)
* [exit]simplify:  Simplified to (* (+ (+ (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4))) (* (+ x1 x2) (+ x1 x2))) (* (+ (- x3 x4) (* x2 x4)) (+ x1 x2))) (* (+ x1 x2) (* (+ (* (- x4 x3) x4) (* x3 x3)) (+ (- (- x2 x3) (- x1)) x4))))
* [exit]simplify:  Simplified to (* (+ (+ (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4))) (* (+ x1 x2) (+ x1 x2))) (* (+ (- x3 x4) (* x2 x4)) (+ x1 x2))) (* (+ x1 x2) (* (+ (* (- x4 x3) x4) (* x3 x3)) (+ (- (- x2 x3) (- x1)) x4))))
* * * * [misc]progress:  [ 142 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (48 enodes)
* * [misc]simplify:  iters left: 5 (153 enodes)
* * [misc]simplify:  iters left: 4 (393 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* (* x2 (- x3 x4)) (+ x3 x4)) (+ (* x2 (+ x2 x1)) (* x1 x1))) (* (- (pow x1 3) (pow x2 3)) (* x2 (- x3 x4)))) (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1))) (- (- x2 (- x1)) (- x3 x4)))) (* (+ (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))) (* (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)) (* x3 (- (- x2 (- x1)) (- x3 x4))))) (* (- x3 x4) (+ (* x1 x1) (* x2 (+ x2 x1))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* (* x2 (- x3 x4)) (+ x3 x4)) (+ (* x2 (+ x2 x1)) (* x1 x1))) (* (- (pow x1 3) (pow x2 3)) (* x2 (- x3 x4)))) (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1))) (- (- x2 (- x1)) (- x3 x4)))) (* (+ (* (+ (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))) (* (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)) (* x3 (- (- x2 (- x1)) (- x3 x4))))) (* (- x3 x4) (+ (* x1 x1) (* x2 (+ x2 x1))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (78 enodes)
* * [misc]simplify:  iters left: 4 (209 enodes)
* * [misc]simplify:  iters left: 3 (444 enodes)
* [exit]simplify:  Simplified to (* (+ (* (+ x1 x2) (+ (- x3 x4) (* x2 x4))) (+ (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4))) (* (+ x1 x2) (+ x1 x2)))) (* (+ (* x2 (+ x1 x2)) (* x1 x1)) (* (- x3 x4) (- (- x2 (- x3 x4)) (- x1)))))
* [exit]simplify:  Simplified to (* (+ (* (+ x1 x2) (+ (- x3 x4) (* x2 x4))) (+ (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4))) (* (+ x1 x2) (+ x1 x2)))) (* (+ (* x2 (+ x1 x2)) (* x1 x1)) (* (- x3 x4) (- (- x2 (- x3 x4)) (- x1)))))
* * * * [misc]progress:  [ 143 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (- x3 x4) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (* (- x3 x4) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (44 enodes)
* * [misc]simplify:  iters left: 5 (141 enodes)
* * [misc]simplify:  iters left: 4 (337 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4))) (* (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)) (* x3 (+ (- x2 x3) (- x4 (- x1)))))) (* (- x3 x4) (+ x2 x1))) (* (* (- x3 x4) (+ (* (- x1 x2) (+ x2 x1)) (* (+ x3 x4) (+ x2 x1)))) (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* x2 (+ (- x2 x3) (- x4 (- x1)))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4))) (* (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)) (* x3 (+ (- x2 x3) (- x4 (- x1)))))) (* (- x3 x4) (+ x2 x1))) (* (* (- x3 x4) (+ (* (- x1 x2) (+ x2 x1)) (* (+ x3 x4) (+ x2 x1)))) (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* x2 (+ (- x2 x3) (- x4 (- x1)))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (69 enodes)
* * [misc]simplify:  iters left: 4 (204 enodes)
* * [misc]simplify:  iters left: 3 (408 enodes)
* [exit]simplify:  Simplified to (* (+ (* (+ x1 x2) (+ x1 x2)) (+ (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4))) (* (+ (- x3 x4) (* x2 x4)) (+ x1 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* (- x3 x4) (+ x1 x2))))
* [exit]simplify:  Simplified to (* (+ (* (+ x1 x2) (+ x1 x2)) (+ (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4))) (* (+ (- x3 x4) (* x2 x4)) (+ x1 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* (- x3 x4) (+ x1 x2))))
* * * * [misc]progress:  [ 144 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (44 enodes)
* * [misc]simplify:  iters left: 5 (146 enodes)
* * [misc]simplify:  iters left: 4 (392 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (* (* x2 (- x1 x2)) (* (- x1 x2) (- x1 x2))) (* (* (+ x3 x4) (+ x3 x4)) (* (+ x3 x4) x2))) (- (- x2 (- x1)) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1))))) (* (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3))) (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))))) (* (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1))))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4))))
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (* (* x2 (- x1 x2)) (* (- x1 x2) (- x1 x2))) (* (* (+ x3 x4) (+ x3 x4)) (* (+ x3 x4) x2))) (- (- x2 (- x1)) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1))))) (* (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3))) (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))))) (* (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- (- x1 x2) (+ x3 x4)))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))) (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1))))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (87 enodes)
* * [misc]simplify:  iters left: 4 (251 enodes)
* [exit]simplify:  Simplified to (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (- (- x1 x2) (+ x3 x4)) (- x1 x2)) (* (+ x3 x4) (+ x3 x4)))) (+ (* (+ x1 x2) (+ x1 x2)) (* (+ (- x3 x4) (* x2 x4)) (+ (+ x1 x2) (+ (- x3 x4) (* x2 x4))))))
* [exit]simplify:  Simplified to (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (- (- x1 x2) (+ x3 x4)) (- x1 x2)) (* (+ x3 x4) (+ x3 x4)))) (+ (* (+ x1 x2) (+ x1 x2)) (* (+ (- x3 x4) (* x2 x4)) (+ (+ x1 x2) (+ (- x3 x4) (* x2 x4))))))
* * * * [misc]progress:  [ 145 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (- (+ x3 x4) (- x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (pow (+ x2 x1) 3) (pow (+ (- x3 x4) (* x4 x2)) 3))))) (- (+ x3 x4) (- x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (40 enodes)
* * [misc]simplify:  iters left: 5 (125 enodes)
* * [misc]simplify:  iters left: 4 (338 enodes)
* [exit]simplify:  Simplified to (+ (* (* (* (+ (- x1 x2) (+ x3 x4)) (* (- (+ x3 x4) (- x1 x2)) x2)) (+ (- x2 x3) (- x4 (- x1)))) (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))))) (* (+ (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))) (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)))) (- (+ x3 x4) (- x1 x2))))
* [exit]simplify:  Simplified to (+ (* (* (* (+ (- x1 x2) (+ x3 x4)) (* (- (+ x3 x4) (- x1 x2)) x2)) (+ (- x2 x3) (- x4 (- x1)))) (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4)))))) (* (+ (* (+ (* (+ (* x4 x2) (- x3 x4)) (+ x2 x1)) (+ (* (+ x2 x1) (+ x2 x1)) (* (+ (* x4 x2) (- x3 x4)) (+ (* x4 x2) (- x3 x4))))) (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))) (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (pow (+ x2 x1) 3) (pow (+ (* x4 x2) (- x3 x4)) 3)))) (- (+ x3 x4) (- x1 x2))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (* (+ x2 x1) (+ x2 x1)) (+ (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))) (* (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (69 enodes)
* * [misc]simplify:  iters left: 4 (197 enodes)
* * [misc]simplify:  iters left: 3 (478 enodes)
* [exit]simplify:  Simplified to (* (+ (+ (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4))) (* (+ x1 x2) (+ x1 x2))) (* (+ x1 x2) (+ (- x3 x4) (* x2 x4)))) (* (+ (- (- x2 x3) (- x1)) x4) (+ (+ x2 x4) (- x3 x1))))
* [exit]simplify:  Simplified to (* (+ (+ (* (+ (- x3 x4) (* x2 x4)) (+ (- x3 x4) (* x2 x4))) (* (+ x1 x2) (+ x1 x2))) (* (+ x1 x2) (+ (- x3 x4) (* x2 x4)))) (* (+ (- (- x2 x3) (- x1)) x4) (+ (+ x2 x4) (- x3 x1))))
* * * * [misc]progress:  [ 146 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (49 enodes)
* * [misc]simplify:  iters left: 5 (151 enodes)
* * [misc]simplify:  iters left: 4 (431 enodes)
* [exit]simplify:  Simplified to (+ (* (* (- (* x4 x4) (* x3 (- x4 x3))) (+ (* x1 x1) (* x2 (+ x2 x1)))) (+ (* (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (* (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (* x2 (+ x2 x1)))) (* (- (* x4 x4) (* x3 (- x4 x3))) (- (pow x1 3) (pow x2 3)))) (* (- (- x2 (- x1)) (- x3 x4)) (* (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))) x2))))
* [exit]simplify:  Simplified to (+ (* (* (- (* x4 x4) (* x3 (- x4 x3))) (+ (* x1 x1) (* x2 (+ x2 x1)))) (+ (* (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (* (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (* x2 (+ x2 x1)))) (* (- (* x4 x4) (* x3 (- x4 x3))) (- (pow x1 3) (pow x2 3)))) (* (- (- x2 (- x1)) (- x3 x4)) (* (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))) x2))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (165 enodes)
* * [misc]simplify:  iters left: 3 (404 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* x1 (+ x1 x2)) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))) (* (+ (+ (+ x1 x2) (* x2 x4)) (- x3 x4)) (- (* x4 x4) (* (- x4 x3) x3))))
* [exit]simplify:  Simplified to (* (* (+ (* x1 (+ x1 x2)) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))) (* (+ (+ (+ x1 x2) (* x2 x4)) (- x3 x4)) (- (* x4 x4) (* (- x4 x3) x3))))
* * * * [misc]progress:  [ 147 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (45 enodes)
* * [misc]simplify:  iters left: 5 (140 enodes)
* * [misc]simplify:  iters left: 4 (392 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (+ (+ (- x3 x4) (+ x2 x1)) (* x4 x2))) (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ x2 x1))) (* (* (* (+ (- x2 x3) (- x4 (- x1))) x2) (+ (+ (- x3 x4) (+ x2 x1)) (* x4 x2))) (+ (* (+ x2 x1) (+ (pow x3 3) (pow x4 3))) (* (+ (* x4 (- x4 x3)) (* x3 x3)) (* (- x1 x2) (+ x2 x1))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (+ (+ (- x3 x4) (+ x2 x1)) (* x4 x2))) (* (* x3 (+ (- x2 x3) (- x4 (- x1)))) (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ x2 x1))) (* (* (* (+ (- x2 x3) (- x4 (- x1))) x2) (+ (+ (- x3 x4) (+ x2 x1)) (* x4 x2))) (+ (* (+ x2 x1) (+ (pow x3 3) (pow x4 3))) (* (+ (* x4 (- x4 x3)) (* x3 x3)) (* (- x1 x2) (+ x2 x1))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (54 enodes)
* * [misc]simplify:  iters left: 4 (137 enodes)
* * [misc]simplify:  iters left: 3 (320 enodes)
* [exit]simplify:  Simplified to (* (* (- x2 (+ (- x1) (- x3 x4))) (- (+ (+ x3 x1) x2) (- x4 (* x2 x4)))) (* (- (* x4 x4) (* (- x4 x3) x3)) (+ x1 x2)))
* [exit]simplify:  Simplified to (* (* (- x2 (+ (- x1) (- x3 x4))) (- (+ (+ x3 x1) x2) (- x4 (* x2 x4)))) (* (- (* x4 x4) (* (- x4 x3) x3)) (+ x1 x2)))
* * * * [misc]progress:  [ 148 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (44 enodes)
* * [misc]simplify:  iters left: 5 (137 enodes)
* * [misc]simplify:  iters left: 4 (354 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (- x3 x4)) (+ (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (* (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* (- x3 x4) (- (pow x1 3) (pow x2 3))) (* (- (* x3 x3) (* x4 x4)) (+ (* x2 (+ x2 x1)) (* x1 x1)))) (* x2 (* (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (- (- x2 (- x1)) (- x3 x4))))))
* [exit]simplify:  Simplified to (+ (* (* (+ (* x2 (+ x2 x1)) (* x1 x1)) (- x3 x4)) (+ (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (* x3 (- (- x2 (- x1)) (- x3 x4))) (* (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* (- x3 x4) (- (pow x1 3) (pow x2 3))) (* (- (* x3 x3) (* x4 x4)) (+ (* x2 (+ x2 x1)) (* x1 x1)))) (* x2 (* (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (- (- x2 (- x1)) (- x3 x4))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (53 enodes)
* * [misc]simplify:  iters left: 4 (127 enodes)
* * [misc]simplify:  iters left: 3 (266 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* x1 (+ x1 x2)) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))) (+ (* (- x3 x4) (+ (+ x1 x2) (* x2 x4))) (* (- x3 x4) (- x3 x4))))
* [exit]simplify:  Simplified to (* (* (+ (* x1 (+ x1 x2)) (* x2 x2)) (- x2 (+ (- x1) (- x3 x4)))) (+ (* (- x3 x4) (+ (+ x1 x2) (* x2 x4))) (* (- x3 x4) (- x3 x4))))
* * * * [misc]progress:  [ 149 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (- x3 x4) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (* (- x3 x4) (+ x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (39 enodes)
* * [misc]simplify:  iters left: 5 (125 enodes)
* * [misc]simplify:  iters left: 4 (297 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* (- x3 x4) (+ x2 x1)) (- x1 x2)) (* (+ x3 x4) (* (- x3 x4) (+ x2 x1)))) (* (* (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (- (- x2 (- x1)) (- x3 x4))) x2)) (* (+ (* (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (* (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (- x2 (- x1)) (- x3 x4))))) (* (- x3 x4) (+ x2 x1))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* (- x3 x4) (+ x2 x1)) (- x1 x2)) (* (+ x3 x4) (* (- x3 x4) (+ x2 x1)))) (* (* (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (- (- x2 (- x1)) (- x3 x4))) x2)) (* (+ (* (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (* (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2))) (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (- x2 (- x1)) (- x3 x4))))) (* (- x3 x4) (+ x2 x1))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (16 enodes)
* * [misc]simplify:  iters left: 5 (43 enodes)
* * [misc]simplify:  iters left: 4 (89 enodes)
* * [misc]simplify:  iters left: 3 (160 enodes)
* [exit]simplify:  Simplified to (* (* (+ x1 x2) (- (+ (- x2 x3) x4) (- x1))) (* (+ (+ (* x2 x4) (+ x1 x2)) (- x3 x4)) (- x3 x4)))
* [exit]simplify:  Simplified to (* (* (+ x1 x2) (- (+ (- x2 x3) x4) (- x1))) (* (+ (+ (* x2 x4) (+ x1 x2)) (- x3 x4)) (- x3 x4)))
* * * * [misc]progress:  [ 150 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (40 enodes)
* * [misc]simplify:  iters left: 5 (130 enodes)
* * [misc]simplify:  iters left: 4 (382 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (+ (- x3 x4) (+ x2 x1)) (* x4 x2)) (+ (- x2 x3) (- x4 (- x1)))) (+ (* (* (- x1 x2) (- x1 x2)) (* x2 (- x1 x2))) (* (* (+ x3 x4) x2) (* (+ x3 x4) (+ x3 x4))))) (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (+ (+ (- x3 x4) (+ x2 x1)) (* x4 x2)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4))))))) (* (* (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4)))) (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))) (* x3 (+ (- x2 x3) (- x4 (- x1))))))
* [exit]simplify:  Simplified to (+ (+ (* (* (+ (+ (- x3 x4) (+ x2 x1)) (* x4 x2)) (+ (- x2 x3) (- x4 (- x1)))) (+ (* (* (- x1 x2) (- x1 x2)) (* x2 (- x1 x2))) (* (* (+ x3 x4) x2) (* (+ x3 x4) (+ x3 x4))))) (* (* (* x1 x4) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))))) (* (+ (+ (- x3 x4) (+ x2 x1)) (* x4 x2)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4))))))) (* (* (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4)))) (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))) (* x3 (+ (- x2 x3) (- x4 (- x1))))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (61 enodes)
* * [misc]simplify:  iters left: 4 (151 enodes)
* * [misc]simplify:  iters left: 3 (380 enodes)
* [exit]simplify:  Simplified to (* (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4)))) (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ (* x2 x4) (+ x1 x2)) (- x3 x4))))
* [exit]simplify:  Simplified to (* (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4)))) (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ (* x2 x4) (+ x1 x2)) (- x3 x4))))
* * * * [misc]progress:  [ 151 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (- (+ x3 x4) (- x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (* (* (- (* x2 x2) (* (+ (- x1) (- x3 x4)) (+ (- x1) (- x3 x4)))) (* x4 x1)) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* (- x2 (+ (- x1) (- x3 x4))) (* x3 (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))))) (- (+ x3 x4) (- x1 x2))) (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (35 enodes)
* * [misc]simplify:  iters left: 5 (108 enodes)
* * [misc]simplify:  iters left: 4 (316 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* (- (+ x3 x4) (- x1 x2)) (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))) (* x3 (- (- x2 (- x1)) (- x3 x4)))) (* (* (- (+ x3 x4) (- x1 x2)) (- (+ (* x4 x2) x3) (- x4 (+ x2 x1)))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)))) (* (* (- (+ (* x4 x2) x3) (- x4 (+ x2 x1))) (- (- x2 (- x1)) (- x3 x4))) (* (+ (- x1 x2) (+ x3 x4)) (* (- (+ x3 x4) (- x1 x2)) x2))))
* [exit]simplify:  Simplified to (+ (+ (* (* (- (+ x3 x4) (- x1 x2)) (- (* (+ x2 x1) (+ x2 x1)) (* (+ (- x3 x4) (* x4 x2)) (+ (- x3 x4) (* x4 x2))))) (* x3 (- (- x2 (- x1)) (- x3 x4)))) (* (* (- (+ x3 x4) (- x1 x2)) (- (+ (* x4 x2) x3) (- x4 (+ x2 x1)))) (* (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x1 x4)))) (* (* (- (+ (* x4 x2) x3) (- x4 (+ x2 x1))) (- (- x2 (- x1)) (- x3 x4))) (* (+ (- x1 x2) (+ x3 x4)) (* (- (+ x3 x4) (- x1 x2)) x2))))
* [enter]simplify:  Simplifying (* (* (- x2 (+ (- x1) (- x3 x4))) (+ (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (43 enodes)
* * [misc]simplify:  iters left: 4 (104 enodes)
* * [misc]simplify:  iters left: 3 (292 enodes)
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- x4 x1)) (* (+ (- (- x2 x3) (- x1)) x4) (+ (+ x1 (* x2 x4)) (+ x2 (- x3 x4)))))
* [exit]simplify:  Simplified to (* (+ (+ x2 x3) (- x4 x1)) (* (+ (- (- x2 x3) (- x1)) x4) (+ (+ x1 (* x2 x4)) (+ x2 (- x3 x4)))))
* * * * [misc]progress:  [ 152 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (48 enodes)
* * [misc]simplify:  iters left: 5 (135 enodes)
* * [misc]simplify:  iters left: 4 (367 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* (- (pow x1 3) (pow x2 3)) x2) (- (* x4 x4) (* x3 (- x4 x3)))) (* (* x2 (+ (pow x4 3) (pow x3 3))) (+ (* x2 (+ x1 x2)) (* x1 x1)))) (+ (* (* (- (+ x1 x2) (+ (* x2 x4) (- x3 x4))) x3) (- (* (- (+ x1 x2) (+ (* x2 x4) (- x3 x4))) x3) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)))) (* (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2))))) (* (+ (pow (* (- (+ x1 x2) (+ (* x2 x4) (- x3 x4))) x3) 3) (pow (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) 3)) (* (+ (* x2 (+ x1 x2)) (* x1 x1)) (- (* x4 x4) (* x3 (- x4 x3))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* (- (pow x1 3) (pow x2 3)) x2) (- (* x4 x4) (* x3 (- x4 x3)))) (* (* x2 (+ (pow x4 3) (pow x3 3))) (+ (* x2 (+ x1 x2)) (* x1 x1)))) (+ (* (* (- (+ x1 x2) (+ (* x2 x4) (- x3 x4))) x3) (- (* (- (+ x1 x2) (+ (* x2 x4) (- x3 x4))) x3) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)))) (* (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2))))) (* (+ (pow (* (- (+ x1 x2) (+ (* x2 x4) (- x3 x4))) x3) 3) (pow (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) 3)) (* (+ (* x2 (+ x1 x2)) (* x1 x1)) (- (* x4 x4) (* x3 (- x4 x3))))))
* [enter]simplify:  Simplifying (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (32 enodes)
* * [misc]simplify:  iters left: 5 (81 enodes)
* * [misc]simplify:  iters left: 4 (224 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* x2 (+ x1 x2)) (* x1 x1)) (+ (* x3 x3) (* x4 (- x4 x3)))) (+ (* (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1)))) (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1))))) (* (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))) (- (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))) (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1))))))))
* [exit]simplify:  Simplified to (* (* (+ (* x2 (+ x1 x2)) (* x1 x1)) (+ (* x3 x3) (* x4 (- x4 x3)))) (+ (* (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1)))) (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1))))) (* (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))) (- (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))) (* (* x1 x4) (- (+ x2 x3) (- x4 (- x1))))))))
* * * * [misc]progress:  [ 153 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (44 enodes)
* * [misc]simplify:  iters left: 5 (123 enodes)
* * [misc]simplify:  iters left: 4 (300 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* x2 (+ x1 x2)) (+ (pow x3 3) (pow x4 3))) (* (* x2 (- (* x1 x1) (* x2 x2))) (+ (* x3 x3) (* x4 (- x4 x3))))) (+ (* (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2))) (* (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3) (- (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)))))) (* (+ (pow (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3) 3) (pow (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) 3)) (* (+ x1 x2) (+ (* x3 x3) (* x4 (- x4 x3))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* x2 (+ x1 x2)) (+ (pow x3 3) (pow x4 3))) (* (* x2 (- (* x1 x1) (* x2 x2))) (+ (* x3 x3) (* x4 (- x4 x3))))) (+ (* (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2))) (* (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3) (- (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)))))) (* (+ (pow (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3) 3) (pow (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) 3)) (* (+ x1 x2) (+ (* x3 x3) (* x4 (- x4 x3))))))
* [enter]simplify:  Simplifying (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (71 enodes)
* * [misc]simplify:  iters left: 4 (192 enodes)
* * [misc]simplify:  iters left: 3 (484 enodes)
* [exit]simplify:  Simplified to (* (+ (* (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4))) (* (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2))) (- (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2))) (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4))))) (* (+ x1 x2) (- (* x4 x4) (* (- x4 x3) x3))))
* [exit]simplify:  Simplified to (* (+ (* (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4))) (* (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2))) (- (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2))) (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4))))) (* (+ x1 x2) (- (* x4 x4) (* (- x4 x3) x3))))
* * * * [misc]progress:  [ 154 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (43 enodes)
* * [misc]simplify:  iters left: 5 (122 enodes)
* * [misc]simplify:  iters left: 4 (290 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (pow (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3) 3) (pow (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1)))) 3)) (* (- x3 x4) (+ (* x1 x1) (* x2 (+ x1 x2))))) (* (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (* x2 (+ x1 x2)))) (* (- (pow x1 3) (pow x2 3)) (- x3 x4)))) (- (* (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3) (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3)) (* (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1)))) (- (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3) (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1)))))))))
* [exit]simplify:  Simplified to (+ (* (+ (pow (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3) 3) (pow (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1)))) 3)) (* (- x3 x4) (+ (* x1 x1) (* x2 (+ x1 x2))))) (* (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (* x2 (+ x1 x2)))) (* (- (pow x1 3) (pow x2 3)) (- x3 x4)))) (- (* (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3) (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3)) (* (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1)))) (- (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3) (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1)))))))))
* [enter]simplify:  Simplifying (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (27 enodes)
* * [misc]simplify:  iters left: 5 (70 enodes)
* * [misc]simplify:  iters left: 4 (178 enodes)
* * [misc]simplify:  iters left: 3 (430 enodes)
* [exit]simplify:  Simplified to (* (* (- x3 x4) (+ (* x1 x1) (* x2 (+ x1 x2)))) (- (* (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2))) (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2)))) (* (- (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2))) (* (* x1 x4) (+ (- x3 (- x4 x2)) (- x1)))) (* (* x1 x4) (+ (- x3 (- x4 x2)) (- x1))))))
* [exit]simplify:  Simplified to (* (* (- x3 x4) (+ (* x1 x1) (* x2 (+ x1 x2)))) (- (* (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2))) (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2)))) (* (- (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2))) (* (* x1 x4) (+ (- x3 (- x4 x2)) (- x1)))) (* (* x1 x4) (+ (- x3 (- x4 x2)) (- x1))))))
* * * * [misc]progress:  [ 155 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (* (- x3 x4) (+ x1 x2))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (* (- x3 x4) (+ x1 x2))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (39 enodes)
* * [misc]simplify:  iters left: 5 (110 enodes)
* * [misc]simplify:  iters left: 4 (226 enodes)
* [exit]simplify:  Simplified to (+ (* (* x2 (* (- x3 x4) (+ (- (* x1 x1) (* x2 x2)) (* (+ x1 x2) (+ x3 x4))))) (+ (* (* (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)) x3) (- (* (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)) x3) (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))))) (* (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2)))))) (* (* (+ x1 x2) (- x3 x4)) (+ (pow (* (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)) x3) 3) (pow (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) 3))))
* [exit]simplify:  Simplified to (+ (* (* x2 (* (- x3 x4) (+ (- (* x1 x1) (* x2 x2)) (* (+ x1 x2) (+ x3 x4))))) (+ (* (* (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)) x3) (- (* (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)) x3) (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))))) (* (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2)))))) (* (* (+ x1 x2) (- x3 x4)) (+ (pow (* (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)) x3) 3) (pow (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) 3))))
* [enter]simplify:  Simplifying (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (60 enodes)
* * [misc]simplify:  iters left: 4 (134 enodes)
* * [misc]simplify:  iters left: 3 (315 enodes)
* [exit]simplify:  Simplified to (* (- (* (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2))) (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2)))) (* (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4)))) (- (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2))) (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4))))))) (* (+ x1 x2) (- x3 x4)))
* [exit]simplify:  Simplified to (* (- (* (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2))) (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2)))) (* (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4)))) (- (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2))) (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4))))))) (* (+ x1 x2) (- x3 x4)))
* * * * [misc]progress:  [ 156 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (38 enodes)
* * [misc]simplify:  iters left: 5 (113 enodes)
* * [misc]simplify:  iters left: 4 (296 enodes)
* [exit]simplify:  Simplified to (+ (* (- (* (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3) (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3)) (* (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (- (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3) (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4))))) (+ (* (* x2 (+ x3 x4)) (* (+ x3 x4) (+ x3 x4))) (* (* (- x1 x2) (- x1 x2)) (* x2 (- x1 x2))))) (+ (* (* (+ (* (- (- x1 x2) (+ x3 x4)) (- x1 x2)) (* (+ x3 x4) (+ x3 x4))) (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3)) (* (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3) (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3))) (* (* (+ (* (- (- x1 x2) (+ x3 x4)) (- x1 x2)) (* (+ x3 x4) (+ x3 x4))) (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4))) (* (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4))))))
* [exit]simplify:  Simplified to (+ (* (- (* (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3) (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3)) (* (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (- (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3) (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4))))) (+ (* (* x2 (+ x3 x4)) (* (+ x3 x4) (+ x3 x4))) (* (* (- x1 x2) (- x1 x2)) (* x2 (- x1 x2))))) (+ (* (* (+ (* (- (- x1 x2) (+ x3 x4)) (- x1 x2)) (* (+ x3 x4) (+ x3 x4))) (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3)) (* (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3) (* (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)) x3))) (* (* (+ (* (- (- x1 x2) (+ x3 x4)) (- x1 x2)) (* (+ x3 x4) (+ x3 x4))) (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4))) (* (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4))))))
* [enter]simplify:  Simplifying (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (77 enodes)
* * [misc]simplify:  iters left: 4 (208 enodes)
* [exit]simplify:  Simplified to (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- (- x1 x2) (+ x3 x4)) (- x1 x2))) (+ (* (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2))) (* (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))) (- (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2))))))
* [exit]simplify:  Simplified to (* (+ (* (+ x3 x4) (+ x3 x4)) (* (- (- x1 x2) (+ x3 x4)) (- x1 x2))) (+ (* (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2))) (* (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))) (- (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2))))))
* * * * [misc]progress:  [ 157 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (- (+ x3 x4) (- x1 x2))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (- (+ x3 x4) (- x1 x2))) (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (34 enodes)
* * [misc]simplify:  iters left: 5 (92 enodes)
* * [misc]simplify:  iters left: 4 (241 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* (- (+ (- x1 x3) x4) (- (* x2 x4) x2)) x3) (- (* (- (+ (- x1 x3) x4) (- (* x2 x4) x2)) x3) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)))) (* (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))) (+ (* (pow (+ (+ (- x1) (- x3 x4)) x2) 3) (* (pow (* x1 x4) 3) (- (+ x3 x4) (- x1 x2)))) (* (* (- (+ x3 x4) (- x1 x2)) (pow x3 3)) (pow (- (+ (- x1 x3) x4) (- (* x2 x4) x2)) 3))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* (- (+ (- x1 x3) x4) (- (* x2 x4) x2)) x3) (- (* (- (+ (- x1 x3) x4) (- (* x2 x4) x2)) x3) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)))) (* (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))) (+ (* (pow (+ (+ (- x1) (- x3 x4)) x2) 3) (* (pow (* x1 x4) 3) (- (+ x3 x4) (- x1 x2)))) (* (* (- (+ x3 x4) (- x1 x2)) (pow x3 3)) (pow (- (+ (- x1 x3) x4) (- (* x2 x4) x2)) 3))))
* [enter]simplify:  Simplifying (* (+ (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (- (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (59 enodes)
* * [misc]simplify:  iters left: 4 (155 enodes)
* * [misc]simplify:  iters left: 3 (404 enodes)
* [exit]simplify:  Simplified to (* (- (+ x3 x4) (- x1 x2)) (+ (* (* (* x1 x4) (- x3 (- (- x4 x2) (- x1)))) (* (* x1 x4) (- x3 (- (- x4 x2) (- x1))))) (* (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))) (- (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))) (* (* x1 x4) (- x3 (- (- x4 x2) (- x1))))))))
* [exit]simplify:  Simplified to (* (- (+ x3 x4) (- x1 x2)) (+ (* (* (* x1 x4) (- x3 (- (- x4 x2) (- x1)))) (* (* x1 x4) (- x3 (- (- x4 x2) (- x1))))) (* (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))) (- (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))) (* (* x1 x4) (- x3 (- (- x4 x2) (- x1))))))))
* * * * [misc]progress:  [ 158 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3))))))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (44 enodes)
* * [misc]simplify:  iters left: 5 (116 enodes)
* * [misc]simplify:  iters left: 4 (326 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* x1 x4) (+ (+ (- x3 x4) x2) (- x1))) (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2)))) (* (- (* (* x1 x4) (+ (+ (- x3 x4) x2) (- x1))) (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2)))) (* (+ (* x2 (+ x1 x2)) (* x1 x1)) (+ (* x4 (- x4 x3)) (* x3 x3))))) (* (+ (* (+ (* x4 (- x4 x3)) (* x3 x3)) (* x2 (- (pow x1 3) (pow x2 3)))) (* (* x2 (+ (pow x3 3) (pow x4 3))) (+ (* x2 (+ x1 x2)) (* x1 x1)))) (- (* (* x1 x4) (+ (+ (- x3 x4) x2) (- x1))) (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* x1 x4) (+ (+ (- x3 x4) x2) (- x1))) (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2)))) (* (- (* (* x1 x4) (+ (+ (- x3 x4) x2) (- x1))) (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2)))) (* (+ (* x2 (+ x1 x2)) (* x1 x1)) (+ (* x4 (- x4 x3)) (* x3 x3))))) (* (+ (* (+ (* x4 (- x4 x3)) (* x3 x3)) (* x2 (- (pow x1 3) (pow x2 3)))) (* (* x2 (+ (pow x3 3) (pow x4 3))) (+ (* x2 (+ x1 x2)) (* x1 x1)))) (- (* (* x1 x4) (+ (+ (- x3 x4) x2) (- x1))) (* x3 (- (+ (- x1 x3) x4) (- (* x2 x4) x2))))))
* [enter]simplify:  Simplifying (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (28 enodes)
* * [misc]simplify:  iters left: 5 (66 enodes)
* * [misc]simplify:  iters left: 4 (174 enodes)
* * [misc]simplify:  iters left: 3 (459 enodes)
* [exit]simplify:  Simplified to (* (* (+ (* x1 x1) (* x2 (+ x1 x2))) (+ (* x3 x3) (* (- x4 x3) x4))) (- (* (* x1 x4) (- x3 (- (- x4 x2) (- x1)))) (* (- (+ (+ x4 x1) (- x2 x3)) (* x2 x4)) x3)))
* [exit]simplify:  Simplified to (* (* (+ (* x1 x1) (* x2 (+ x1 x2))) (+ (* x3 x3) (* (- x4 x3) x4))) (- (* (* x1 x4) (- x3 (- (- x4 x2) (- x1)))) (* (- (+ (+ x4 x1) (- x2 x3)) (* x2 x4)) x3)))
* * * * [misc]progress:  [ 159 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2))))))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (* (+ (pow x3 3) (pow x4 3)) (+ x1 x2)) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (40 enodes)
* * [misc]simplify:  iters left: 5 (104 enodes)
* * [misc]simplify:  iters left: 4 (271 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (* (* x2 (* (+ x1 x2) (- x1 x2))) (+ (* x4 (- x4 x3)) (* x3 x3))) (* (+ (pow x4 3) (pow x3 3)) (* x2 (+ x1 x2)))) (- (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4))))) (* (* (* (+ x1 x2) (+ (* x4 (- x4 x3)) (* x3 x3))) (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4))))) (- (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4))))))
* [exit]simplify:  Simplified to (+ (* (+ (* (* x2 (* (+ x1 x2) (- x1 x2))) (+ (* x4 (- x4 x3)) (* x3 x3))) (* (+ (pow x4 3) (pow x3 3)) (* x2 (+ x1 x2)))) (- (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4))))) (* (* (* (+ x1 x2) (+ (* x4 (- x4 x3)) (* x3 x3))) (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4))))) (- (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4))))))
* [enter]simplify:  Simplifying (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (+ (* x3 x3) (- (* x4 x4) (* x3 x4))) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (56 enodes)
* * [misc]simplify:  iters left: 4 (135 enodes)
* * [misc]simplify:  iters left: 3 (286 enodes)
* [exit]simplify:  Simplified to (* (- (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3)) (* (+ (* x3 x3) (* (- x4 x3) x4)) (+ x1 x2)))
* [exit]simplify:  Simplified to (* (- (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3)) (* (+ (* x3 x3) (* (- x4 x3) x4)) (+ x1 x2)))
* * * * [misc]progress:  [ 160 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3))))))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2))))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))) (* (- x3 x4) (- (pow x1 3) (pow x2 3)))))))
* * [misc]simplify:  iters left: 6 (39 enodes)
* * [misc]simplify:  iters left: 5 (102 enodes)
* * [misc]simplify:  iters left: 4 (225 enodes)
* [exit]simplify:  Simplified to (+ (* (* (+ (* x2 (+ x1 x2)) (* x1 x1)) (- x3 x4)) (* (- (* (* x1 x4) (+ (+ (- x3 x4) x2) (- x1))) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))) (+ (* (* x1 x4) (+ (+ (- x3 x4) x2) (- x1))) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))))) (* (* x2 (- (* (* x1 x4) (+ (+ (- x3 x4) x2) (- x1))) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2))))) (+ (* (* (- x3 x4) (+ x3 x4)) (+ (* x2 (+ x1 x2)) (* x1 x1))) (* (- (pow x1 3) (pow x2 3)) (- x3 x4)))))
* [exit]simplify:  Simplified to (+ (* (* (+ (* x2 (+ x1 x2)) (* x1 x1)) (- x3 x4)) (* (- (* (* x1 x4) (+ (+ (- x3 x4) x2) (- x1))) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))) (+ (* (* x1 x4) (+ (+ (- x3 x4) x2) (- x1))) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))))) (* (* x2 (- (* (* x1 x4) (+ (+ (- x3 x4) x2) (- x1))) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2))))) (+ (* (* (- x3 x4) (+ x3 x4)) (+ (* x2 (+ x1 x2)) (* x1 x1))) (* (- (pow x1 3) (pow x2 3)) (- x3 x4)))))
* [enter]simplify:  Simplifying (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (- x3 x4) (+ (* x1 x1) (+ (* x2 x2) (* x1 x2)))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (55 enodes)
* * [misc]simplify:  iters left: 4 (115 enodes)
* * [misc]simplify:  iters left: 3 (202 enodes)
* * [misc]simplify:  iters left: 2 (363 enodes)
* [exit]simplify:  Simplified to (* (- (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* (+ (+ x2 (- x1 x3)) (- x4 (* x2 x4))) x3)) (* (- x3 x4) (+ (* x2 x2) (* (+ x1 x2) x1))))
* [exit]simplify:  Simplified to (* (- (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* (+ (+ x2 (- x1 x3)) (- x4 (* x2 x4))) x3)) (* (- x3 x4) (+ (* x2 x2) (* (+ x1 x2) x1))))
* * * * [misc]progress:  [ 161 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2))))))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (- x3 x4) (+ x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (- x3 x4) (+ x1 x2))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (* (- (* x3 x3) (* x4 x4)) (+ x1 x2)) (* (- x3 x4) (- (* x1 x1) (* x2 x2)))))))
* * [misc]simplify:  iters left: 6 (34 enodes)
* * [misc]simplify:  iters left: 5 (89 enodes)
* * [misc]simplify:  iters left: 4 (186 enodes)
* * [misc]simplify:  iters left: 3 (467 enodes)
* [exit]simplify:  Simplified to (+ (* (- (* (* x1 x4) (- x3 (- (- x4 x2) (- x1)))) (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)))) (* x2 (* (* (+ x1 x2) (- x3 x4)) (+ (+ x3 x4) (- x1 x2))))) (* (* (- (* (* x1 x4) (- x3 (- (- x4 x2) (- x1)))) (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)))) (* (+ x1 x2) (- x3 x4))) (+ (* (* x1 x4) (- x3 (- (- x4 x2) (- x1)))) (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))))))
* [exit]simplify:  Simplified to (+ (* (- (* (* x1 x4) (- x3 (- (- x4 x2) (- x1)))) (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)))) (* x2 (* (* (+ x1 x2) (- x3 x4)) (+ (+ x3 x4) (- x1 x2))))) (* (* (- (* (* x1 x4) (- x3 (- (- x4 x2) (- x1)))) (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)))) (* (+ x1 x2) (- x3 x4))) (+ (* (* x1 x4) (- x3 (- (- x4 x2) (- x1)))) (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))))))
* [enter]simplify:  Simplifying (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (- x3 x4) (+ x1 x2)))
* * [misc]simplify:  iters left: 6 (19 enodes)
* * [misc]simplify:  iters left: 5 (45 enodes)
* * [misc]simplify:  iters left: 4 (93 enodes)
* * [misc]simplify:  iters left: 3 (163 enodes)
* * [misc]simplify:  iters left: 2 (267 enodes)
* * [misc]simplify:  iters left: 1 (405 enodes)
* [exit]simplify:  Simplified to (* (- (* (* x1 x4) (- (+ (- x1) (+ x2 x3)) x4)) (* (+ (- x2 x3) (- (+ x1 x4) (* x2 x4))) x3)) (* (+ x1 x2) (- x3 x4)))
* [exit]simplify:  Simplified to (* (- (* (* x1 x4) (- (+ (- x1) (+ x2 x3)) x4)) (* (+ (- x2 x3) (- (+ x1 x4) (* x2 x4))) x3)) (* (+ x1 x2) (- x3 x4)))
* * * * [misc]progress:  [ 162 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3))))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2))))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (pow (+ x3 x4) 3) (pow (- x1 x2) 3)))))
* * [misc]simplify:  iters left: 6 (34 enodes)
* * [misc]simplify:  iters left: 5 (93 enodes)
* * [misc]simplify:  iters left: 4 (222 enodes)
* [exit]simplify:  Simplified to (* (- (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* x3 (- (- x1 (- x3 x4)) (- (* x2 x4) x2)))) (+ (+ (* (* (- x1 x2) (- x1 x2)) (* (- x1 x2) x2)) (* (* x2 (+ x3 x4)) (* (+ x3 x4) (+ x3 x4)))) (* (+ (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* x3 (- (- x1 (- x3 x4)) (- (* x2 x4) x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (* (- (- x1 x2) (+ x3 x4)) (- x1 x2))))))
* [exit]simplify:  Simplified to (* (- (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* x3 (- (- x1 (- x3 x4)) (- (* x2 x4) x2)))) (+ (+ (* (* (- x1 x2) (- x1 x2)) (* (- x1 x2) x2)) (* (* x2 (+ x3 x4)) (* (+ x3 x4) (+ x3 x4)))) (* (+ (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* x3 (- (- x1 (- x3 x4)) (- (* x2 x4) x2)))) (+ (* (+ x3 x4) (+ x3 x4)) (* (- (- x1 x2) (+ x3 x4)) (- x1 x2))))))
* [enter]simplify:  Simplifying (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (+ (* (+ x3 x4) (+ x3 x4)) (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (62 enodes)
* * [misc]simplify:  iters left: 4 (134 enodes)
* * [misc]simplify:  iters left: 3 (261 enodes)
* [exit]simplify:  Simplified to (* (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4)))) (- (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4)))) (* (- (- x1 (* x2 x4)) (- x3 (+ x4 x2))) x3)))
* [exit]simplify:  Simplified to (* (- (* (- x1 x2) (- x1 x2)) (* (+ x3 x4) (- (- x1 x2) (+ x3 x4)))) (- (* (* x1 x4) (+ (- x1) (+ x2 (- x3 x4)))) (* (- (- x1 (* x2 x4)) (- x3 (+ x4 x2))) x3)))
* * * * [misc]progress:  [ 163 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2)))))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (- (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* (- (* (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (* (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (- (+ x3 x4) (- x1 x2))) (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (- (* (+ x3 x4) (+ x3 x4)) (* (- x1 x2) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (71 enodes)
* * [misc]simplify:  iters left: 4 (185 enodes)
* [exit]simplify:  Simplified to (* (- (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)))) (+ (* (- (+ x3 x4) (- x1 x2)) (+ (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))))) (* (- (+ x3 x4) (- x1 x2)) (* x2 (+ (+ x3 x4) (- x1 x2))))))
* [exit]simplify:  Simplified to (* (- (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)))) (+ (* (- (+ x3 x4) (- x1 x2)) (+ (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* x3 (- (- (+ x1 x2) (* x2 x4)) (- x3 x4))))) (* (- (+ x3 x4) (- x1 x2)) (* x2 (+ (+ x3 x4) (- x1 x2))))))
* [enter]simplify:  Simplifying (* (- (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (- (+ x3 x4) (- x1 x2)))
* * [misc]simplify:  iters left: 6 (20 enodes)
* * [misc]simplify:  iters left: 5 (44 enodes)
* * [misc]simplify:  iters left: 4 (96 enodes)
* * [misc]simplify:  iters left: 3 (175 enodes)
* * [misc]simplify:  iters left: 2 (292 enodes)
* * [misc]simplify:  iters left: 1 (392 enodes)
* [exit]simplify:  Simplified to (* (- (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (+ (- (- x1 x3) (* x2 x4)) (+ x4 x2)) x3)) (+ (- x4 x1) (+ x2 x3)))
* [exit]simplify:  Simplified to (* (- (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (+ (- (- x1 x3) (* x2 x4)) (+ x4 x2)) x3)) (+ (- x4 x1) (+ x2 x3)))
* * * * [misc]progress:  [ 164 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (pow (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) 3) (pow (* x2 (+ (+ x3 x4) (- x1 x2))) 3)) (+ (* (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (- (* (* x2 (+ (+ x3 x4) (- x1 x2))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (* (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2))))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (pow (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) 3) (pow (* x2 (+ (+ x3 x4) (- x1 x2))) 3))
* * [misc]simplify:  iters left: 6 (24 enodes)
* * [misc]simplify:  iters left: 5 (65 enodes)
* * [misc]simplify:  iters left: 4 (133 enodes)
* * [misc]simplify:  iters left: 3 (328 enodes)
* [exit]simplify:  Simplified to (+ (pow (+ (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* (- (+ (+ x4 x2) (- x1 x3)) (* x2 x4)) x3)) 3) (pow (* (- (+ x3 x1) (- x2 x4)) x2) 3))
* [exit]simplify:  Simplified to (+ (pow (+ (* (* x1 x4) (+ (+ (- x1) (- x3 x4)) x2)) (* (- (+ (+ x4 x2) (- x1 x3)) (* x2 x4)) x3)) 3) (pow (* (- (+ x3 x1) (- x2 x4)) x2) 3))
* [enter]simplify:  Simplifying (+ (* (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (- (* (* x2 (+ (+ x3 x4) (- x1 x2))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (* (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2))))))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (71 enodes)
* * [misc]simplify:  iters left: 4 (179 enodes)
* * [misc]simplify:  iters left: 3 (419 enodes)
* [exit]simplify:  Simplified to (+ (* (* x2 (+ (- x1 x2) (+ x3 x4))) (- (* x2 (+ (- x1 x2) (+ x3 x4))) (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)) x3)))) (* (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)) x3)) (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)) x3))))
* [exit]simplify:  Simplified to (+ (* (* x2 (+ (- x1 x2) (+ x3 x4))) (- (* x2 (+ (- x1 x2) (+ x3 x4))) (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)) x3)))) (* (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)) x3)) (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (- (- (+ x1 x2) (* x2 x4)) (- x3 x4)) x3))))
* * * * [misc]progress:  [ 165 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (* 1 (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2))))) (+ (* (+ x2 x3) x1) x4)))>
* * * * [misc]progress:  [ 166 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (/ (- (* (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (* x2 (+ (+ x3 x4) (- x1 x2))) (* x2 (+ (+ x3 x4) (- x1 x2))))) (- (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (* (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (* (* x2 (+ (+ x3 x4) (- x1 x2))) (* x2 (+ (+ x3 x4) (- x1 x2)))))
* * [misc]simplify:  iters left: 6 (23 enodes)
* * [misc]simplify:  iters left: 5 (65 enodes)
* * [misc]simplify:  iters left: 4 (170 enodes)
* * [misc]simplify:  iters left: 3 (422 enodes)
* [exit]simplify:  Simplified to (- (* (+ (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))) (* (+ (+ (- x1 x3) x2) (- x4 (* x2 x4))) x3)) (+ (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))) (* (+ (+ (- x1 x3) x2) (- x4 (* x2 x4))) x3))) (* (* x2 (+ (- x1 x2) (+ x3 x4))) (* x2 (+ (- x1 x2) (+ x3 x4)))))
* [exit]simplify:  Simplified to (- (* (+ (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))) (* (+ (+ (- x1 x3) x2) (- x4 (* x2 x4))) x3)) (+ (* (* x1 x4) (+ (- (+ x2 x3) x4) (- x1))) (* (+ (+ (- x1 x3) x2) (- x4 (* x2 x4))) x3))) (* (* x2 (+ (- x1 x2) (+ x3 x4))) (* x2 (+ (- x1 x2) (+ x3 x4)))))
* [enter]simplify:  Simplifying (- (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (54 enodes)
* * [misc]simplify:  iters left: 4 (104 enodes)
* * [misc]simplify:  iters left: 3 (182 enodes)
* * [misc]simplify:  iters left: 2 (288 enodes)
* * [misc]simplify:  iters left: 1 (401 enodes)
* [exit]simplify:  Simplified to (- (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (- (+ (- x1 x3) (+ x4 x2)) (* x2 x4)) x3)) (* x2 (- (+ x3 x1) (- x2 x4))))
* [exit]simplify:  Simplified to (- (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* (- (+ (- x1 x3) (+ x4 x2)) (* x2 x4)) x3)) (* x2 (- (+ x3 x1) (- x2 x4))))
* * * * [misc]progress:  [ 167 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ x3 x4))) (* x2 (- x1 x2))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ x3 x4)))
* * [misc]simplify:  iters left: 6 (19 enodes)
* * [misc]simplify:  iters left: 5 (46 enodes)
* * [misc]simplify:  iters left: 4 (82 enodes)
* * [misc]simplify:  iters left: 3 (147 enodes)
* * [misc]simplify:  iters left: 2 (262 enodes)
* * [misc]simplify:  iters left: 1 (383 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (- (- (+ x4 x2) (- x3 x1)) (- (* x2 x4) x2)) x3) (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2)))) (* x2 x4))
* [exit]simplify:  Simplified to (+ (+ (* (- (- (+ x4 x2) (- x3 x1)) (- (* x2 x4) x2)) x3) (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2)))) (* x2 x4))
* * * * [misc]progress:  [ 168 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (+ x3 x4) x2)) (* (- x1 x2) x2)) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* (+ x3 x4) x2))
* * [misc]simplify:  iters left: 6 (19 enodes)
* * [misc]simplify:  iters left: 5 (42 enodes)
* * [misc]simplify:  iters left: 4 (82 enodes)
* * [misc]simplify:  iters left: 3 (150 enodes)
* * [misc]simplify:  iters left: 2 (266 enodes)
* * [misc]simplify:  iters left: 1 (433 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1)))) (* x3 (- (- (+ x1 x2) (- x3 x4)) (- (* x2 x4) x2)))) (* x2 x4))
* [exit]simplify:  Simplified to (+ (+ (* (* x1 x4) (+ (- x3 x4) (+ x2 (- x1)))) (* x3 (- (- (+ x1 x2) (- x3 x4)) (- (* x2 x4) x2)))) (* x2 x4))
* * * * [misc]progress:  [ 169 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (+ (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (+ x3 x4) (- x1 x2))))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (+ (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) (* x2 (+ (+ x3 x4) (- x1 x2))))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (38 enodes)
* * [misc]simplify:  iters left: 4 (74 enodes)
* * [misc]simplify:  iters left: 3 (119 enodes)
* * [misc]simplify:  iters left: 2 (169 enodes)
* * [misc]simplify:  iters left: 1 (232 enodes)
* [exit]simplify:  Simplified to (+ (* (+ (- x1 x2) (+ x4 x3)) x2) (* x3 (- (+ x4 (- x1 x3)) (- (* x2 x4) x2))))
* [exit]simplify:  Simplified to (+ (* (+ (- x1 x2) (+ x4 x3)) x2) (* x3 (- (+ x4 (- x1 x3)) (- (* x2 x4) x2))))
* * * * [misc]progress:  [ 170 / 182 ] simplifiying candidate #<alt-delta (λ (x1 x2 x3 x4) (- (+ (* x2 (+ (+ x3 x4) (- x1 x2))) (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (+ (* (+ x2 x3) x1) x4)))>
* * * * [misc]progress:  [ 171 / 182 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (+ (+ 0 (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (+ (+ 0 (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (51 enodes)
* * [misc]simplify:  iters left: 4 (105 enodes)
* * [misc]simplify:  iters left: 3 (176 enodes)
* * [misc]simplify:  iters left: 2 (264 enodes)
* * [misc]simplify:  iters left: 1 (353 enodes)
* [exit]simplify:  Simplified to (+ (- (* (- (+ x4 x1) (- x2 x3)) x2) (+ (* x1 (+ x3 x2)) x4)) (* (- (+ (- x2 x3) (+ x4 x1)) (* x2 x4)) x3))
* * * * [misc]progress:  [ 172 / 182 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (+ (+ (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* (pow x1 2) x4))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (+ (+ (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* (pow x1 2) x4))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (71 enodes)
* * [misc]simplify:  iters left: 4 (142 enodes)
* * [misc]simplify:  iters left: 3 (280 enodes)
* [exit]simplify:  Simplified to (+ (- (* x3 (- (- (+ x2 x1) (* x2 x4)) (- (- x3 x4) (* x4 x1)))) (* (* x4 x1) (+ x4 x1))) (- (* x2 (- (+ x1 x3) (- x2 x4))) (+ x4 (* x1 (+ x2 x3)))))
* * * * [misc]progress:  [ 173 / 182 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (+ (+ (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* (pow x1 2) x4))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (+ (+ (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* (pow x1 2) x4))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4))
* * [misc]simplify:  iters left: 6 (29 enodes)
* * [misc]simplify:  iters left: 5 (71 enodes)
* * [misc]simplify:  iters left: 4 (142 enodes)
* * [misc]simplify:  iters left: 3 (280 enodes)
* [exit]simplify:  Simplified to (+ (- (* x3 (- (- (+ x2 x1) (* x2 x4)) (- (- x3 x4) (* x4 x1)))) (* (* x4 x1) (+ x4 x1))) (- (* x2 (- (+ x1 x3) (- x2 x4))) (+ x4 (* x1 (+ x2 x3)))))
* * * * [misc]progress:  [ 174 / 182 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (+ 0 (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (+ 0 (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (31 enodes)
* * [misc]simplify:  iters left: 4 (59 enodes)
* * [misc]simplify:  iters left: 3 (96 enodes)
* * [misc]simplify:  iters left: 2 (119 enodes)
* * [misc]simplify:  iters left: 1 (140 enodes)
* [exit]simplify:  Simplified to (- (* (+ (+ x4 x3) (- x1 x2)) x2) (+ (* (+ x2 x3) x1) x4))
* * * * [misc]progress:  [ 175 / 182 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (+ (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* x2 (* x4 x3)))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (+ (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* x2 (* x4 x3)))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (53 enodes)
* * [misc]simplify:  iters left: 4 (111 enodes)
* * [misc]simplify:  iters left: 3 (207 enodes)
* * [misc]simplify:  iters left: 2 (395 enodes)
* [exit]simplify:  Simplified to (- (- (* (- (+ x1 x3) (- x2 x4)) x2) x4) (+ (- (* (+ x2 x3) x1) (* (- x3 x4) (* x4 x1))) (* (* x4 x2) x3)))
* * * * [misc]progress:  [ 176 / 182 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (+ (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* x2 (* x4 x3)))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (+ (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* x2 (* x4 x3)))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (53 enodes)
* * [misc]simplify:  iters left: 4 (111 enodes)
* * [misc]simplify:  iters left: 3 (207 enodes)
* * [misc]simplify:  iters left: 2 (395 enodes)
* [exit]simplify:  Simplified to (- (- (* (- (+ x1 x3) (- x2 x4)) x2) x4) (+ (- (* (+ x2 x3) x1) (* (- x3 x4) (* x4 x1))) (* (* x4 x2) x3)))
* * * * [misc]progress:  [ 177 / 182 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (+ (* x1 x3) (* x2 x3)) (pow x3 2))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (+ (* x1 x3) (* x2 x3)) (pow x3 2))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4))
* * [misc]simplify:  iters left: 6 (26 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (125 enodes)
* * [misc]simplify:  iters left: 3 (259 enodes)
* * [misc]simplify:  iters left: 2 (497 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (* x1 x4) (- (+ x3 (- x1)) (- x4 x2))) (* x3 (+ (- x1 x3) x2))) (- (* x2 (- (+ x3 x1) (- x2 x4))) (+ x4 (* (+ x2 x3) x1))))
* * * * [misc]progress:  [ 178 / 182 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (+ (* x1 x3) (* x4 x3)) (* x2 (* x4 x3)))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (+ (* x1 x3) (* x4 x3)) (* x2 (* x4 x3)))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (127 enodes)
* * [misc]simplify:  iters left: 3 (258 enodes)
* * [misc]simplify:  iters left: 2 (484 enodes)
* [exit]simplify:  Simplified to (- (+ (+ (* x2 (+ (+ x3 x4) (- x1 x2))) (* x3 (- (+ x1 x4) (* x2 x4)))) (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1)))) (+ x4 (* (+ x2 x3) x1)))
* * * * [misc]progress:  [ 179 / 182 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (+ (* x1 x3) (* x4 x3)) (* x2 (* x4 x3)))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (- (+ (* x1 x3) (* x4 x3)) (* x2 (* x4 x3)))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4))
* * [misc]simplify:  iters left: 6 (25 enodes)
* * [misc]simplify:  iters left: 5 (64 enodes)
* * [misc]simplify:  iters left: 4 (127 enodes)
* * [misc]simplify:  iters left: 3 (258 enodes)
* * [misc]simplify:  iters left: 2 (484 enodes)
* [exit]simplify:  Simplified to (- (+ (+ (* x2 (+ (+ x3 x4) (- x1 x2))) (* x3 (- (+ x1 x4) (* x2 x4)))) (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1)))) (+ x4 (* (+ x2 x3) x1)))
* * * * [misc]progress:  [ 180 / 182 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (+ (* x1 x2) (* 2 (* x2 x3))) (pow x2 2)) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (- (+ (* x1 x2) (* 2 (* x2 x3))) (pow x2 2)) (+ (* (+ x2 x3) x1) x4))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (29 enodes)
* * [misc]simplify:  iters left: 4 (53 enodes)
* * [misc]simplify:  iters left: 3 (97 enodes)
* * [misc]simplify:  iters left: 2 (167 enodes)
* * [misc]simplify:  iters left: 1 (257 enodes)
* [exit]simplify:  Simplified to (- (* x2 (+ x3 (- x3 x2))) (+ x4 (* x1 x3)))
* * * * [misc]progress:  [ 181 / 182 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* x2 (* x4 x3)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* x2 (* x4 x3)))) (+ (* (+ x2 x3) x1) x4))
* * [misc]simplify:  iters left: 6 (16 enodes)
* * [misc]simplify:  iters left: 5 (31 enodes)
* * [misc]simplify:  iters left: 4 (52 enodes)
* * [misc]simplify:  iters left: 3 (94 enodes)
* * [misc]simplify:  iters left: 2 (160 enodes)
* * [misc]simplify:  iters left: 1 (224 enodes)
* [exit]simplify:  Simplified to (- (- (* (- x3 x4) (* x4 x1)) (* x4 (* x2 x3))) (+ (* x1 (+ x2 x3)) x4))
* * * * [misc]progress:  [ 182 / 182 ] simplifiying candidate #<alt-event (λ (x1 x2 x3 x4) (- (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* x2 (* x4 x3)))) (+ (* (+ x2 x3) x1) x4)))>
* [enter]simplify:  Simplifying (- (- (* x1 (* x4 x3)) (+ (* x1 (pow x4 2)) (* x2 (* x4 x3)))) (+ (* (+ x2 x3) x1) x4))
* * [misc]simplify:  iters left: 6 (16 enodes)
* * [misc]simplify:  iters left: 5 (31 enodes)
* * [misc]simplify:  iters left: 4 (52 enodes)
* * [misc]simplify:  iters left: 3 (94 enodes)
* * [misc]simplify:  iters left: 2 (160 enodes)
* * [misc]simplify:  iters left: 1 (224 enodes)
* [exit]simplify:  Simplified to (- (- (* (- x3 x4) (* x4 x1)) (* x4 (* x2 x3))) (+ (* x1 (+ x2 x3)) x4))
* * * [misc]progress:  adding candidates to table
* [misc]progress:  [Phase 3 of 3] Extracting.
* * [misc]regime-changes:  Finding splitpoints for: (#<alt-delta (λ (x1 x2 x3 x4) (- (* (* (cbrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2))))) (cbrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))) (cbrt (+ (+ (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (+ (cbrt (pow (+ (* (* x1 x4) (- (+ (+ x2 x3) (- x1)) x4)) (* (+ (+ x1 (- x2 x3)) (- x4 (* x2 x4))) x3)) 3)) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3)))) (* x3 (+ (* x2 x2) (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- x3 x4) (- x1))))))) (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (+ (* x2 x2) (* (- x1 x2) x1)))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))))) (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (+ (* x2 x2) (* (- x1 x2) x1)) (+ (* (- x3 x4) (- x3 x4)) (* (* x4 x2) (- (* x4 x2) (- x3 x4))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* x3 (- (- x2 (- x3 x4)) (- x1))) (- (* (- (- x3 x4) (* x4 x2)) (+ (pow x1 3) (pow x2 3))) (* (* (+ (* x4 x2) (- x3 x4)) (- (- x3 x4) (* x4 x2))) (+ (* x2 x2) (* x1 (- x1 x2)))))) (* (* (* (* x1 x4) (- (- x3 x4) (* x4 x2))) (+ (* x2 x2) (* x1 (- x1 x2)))) (- (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))))) (* (* (+ (* (- x1 x2) x1) (* x2 x2)) (+ (- x2 x3) (- x4 (- x1)))) (- (- x3 x4) (* x2 x4)))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (pow (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)) 3) (pow (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))) 3)) (- (* (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4))) (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4)))) (* (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))) (- (* x3 (- (- (+ x1 x2) (- x3 x4)) (* x2 x4))) (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (+ (log (exp (+ (* (* x1 x4) (+ (- x1) (- (+ x2 x3) x4))) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (cbrt (pow (+ (+ (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))) (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))) 3)) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (* (cbrt (+ x2 (+ (- x1) (- x3 x4)))) (cbrt (+ x2 (+ (- x1) (- x3 x4))))) (* (cbrt (+ x2 (+ (- x1) (- x3 x4)))) (* x4 x1))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* x2 (+ (- x1 x2) (+ x3 x4))) (* (+ (+ x2 x3) (- (- x1) x4)) (* x4 x1))) (- (* x3 (- (- (+ x2 x1) (- x3 x4)) (* x4 x2))) (* (+ x2 x3) x1))) x4))> #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4))) (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (cbrt (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)))) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))> #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (cbrt (* (pow (- (+ (+ x2 x3) (- x1)) x4) 3) (pow (* x1 x4) 3))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (- (+ (+ (* x2 (- (+ x4 x1) (- x2 x3))) (* (+ (+ x4 x2) (- x1 x3)) x3)) (* (- (+ (- x1) x2) (- x4 x3)) (* x4 x1))) (* x3 (+ (* x4 x2) x1))) (+ x4 (* x1 x2))))> #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))) (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (* (- (* x1 x1) (* x2 (- x1 x2))) x2))) (+ (* (- (* x4 x4) (* x3 (- x4 x3))) (* (+ x2 x1) (- x1 x2))) (* (+ (pow x4 3) (pow x3 3)) (+ x2 x1)))) (* (+ (* (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (- (* x1 x1) (* x2 (- x1 x2))) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3)))) (* x3 (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))))) (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (* (* (* x1 x4) (- (* x1 x1) (* x2 (- x1 x2)))) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))))) (* (- (* x4 x4) (* x3 (- x4 x3))) (+ x2 x1)))) (* (* (- (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 (+ (- (- x1) x2) (- x3 x4)))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))) (* (+ x2 x1) (- (* x4 x4) (* x3 (- x4 x3)))))) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (/ (+ (* (+ (* (- (* (+ (pow x2 3) (pow x1 3)) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4)))) (* (+ (* x2 x2) (* x1 (- x1 x2))) (+ (pow (- x3 x4) 3) (pow (* x2 x4) 3)))) (* x3 (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))))) (* (* (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3)) (* (* x1 x4) (+ (* x2 x2) (* x1 (- x1 x2))))) (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))))) (* (+ (* x3 x3) (* (- x4 x3) x4)) (+ (* x1 x1) (* (+ x2 x1) x2)))) (* (- (+ (* x2 x2) (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1)))) (* x2 (+ (- x3 x4) (- x1)))) (* (* (+ (* (* x2 x4) (- (* x2 x4) (- x3 x4))) (* (- x3 x4) (- x3 x4))) (+ (* x2 x2) (* x1 (- x1 x2)))) (+ (* (* x2 (+ (pow x4 3) (pow x3 3))) (+ (* x1 x1) (* (+ x2 x1) x2))) (* (* x2 (- (pow x1 3) (pow x2 3))) (+ (* x3 x3) (* (- x4 x3) x4))))))) (* (* (+ (* x4 (- x4 x3)) (* x3 x3)) (+ (* x1 x1) (* x2 (+ x2 x1)))) (* (- (+ (* (+ (- x3 x4) (- x1)) (+ (- x3 x4) (- x1))) (* x2 x2)) (* (+ (- x3 x4) (- x1)) x2)) (* (- (* x1 x1) (* x2 (- x1 x2))) (- (* (* x4 x2) (* x4 x2)) (* (- x3 x4) (- (* x4 x2) (- x3 x4)))))))) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (+ (/ (+ (* (* (* (- x2 x1) (* x1 x4)) (+ (pow x2 3) (pow (+ (- x3 x4) (- x1)) 3))) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))) (* (+ (* (* x3 (+ (- x3 x4) (- x1))) (- (- x1) (- x2 (- x3 x4)))) (* x3 (* x2 x2))) (- (* (* (- x2 x1) (+ x2 x1)) (- (* (* x2 x4) (* x2 x4)) (* (- x3 x4) (- (* x2 x4) (- x3 x4))))) (+ (* (- x2 x1) (pow (* x2 x4) 3)) (* (* (- x3 x4) (- x3 x4)) (* (- x2 x1) (- x3 x4))))))) (* (+ (* (- (- x3 x4) (- x2 (- x1))) (* (+ (- x3 x4) (- x1)) (- x2 x1))) (* (* x2 x2) (- x2 x1))) (- (* (* x4 x2) (* x4 x2)) (* (- (* x4 x2) (- x3 x4)) (- x3 x4))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (* x3 (+ (- (+ x1 x2) x3) x4))) (* x2 (* x3 x4))) (* x1 x3)) (* x1 x2)) x4))> #<alt-delta (λ (x1 x2 x3 x4) (- (- (- (- (+ (+ (* (* x1 x4) (- (+ (+ (- x1) x2) x3) x4)) (* x2 (+ (+ (- x1 x2) x3) x4))) (+ (* x3 (- (+ x1 x2) x3)) (* x3 x4))) (* (* x2 x3) x4)) (* x1 x3)) (* x1 x2)) x4))> #<alt-delta (λ (x1 x2 x3 x4) (- (+ (+ (* (* (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))) (cbrt (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1)))) (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2))))) (* x2 (+ (+ x3 x4) (- x1 x2)))) (+ (* (+ x2 x3) x1) x4)))> #<alt-delta (λ (x1 x2 x3 x4) (- (log (* (* (exp (* (+ x2 (+ (- x1) (- x3 x4))) (* x4 x1))) (exp (* x3 (- (+ x2 x1) (+ (- x3 x4) (* x4 x2)))))) (exp (* x2 (+ (+ x3 x4) (- x1 x2)))))) (+ (* (+ x2 x3) x1) x4)))>)
* [misc]regimes:  Found splitpoints: (#s(sp 0 x1 +inf.0)) , with alts (#<alt-delta (λ (x1 x2 x3 x4) (- (cbrt (pow (+ (+ (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))) (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2)))) 3)) (+ (* (+ x2 x3) x1) x4)))>)
* [enter]simplify:  Simplifying (+ (+ (* (* x1 x4) (+ (+ x2 (- x3 x4)) (- x1))) (* (- (- x1 (* x2 x4)) (- (- x3 x4) x2)) x3)) (* x2 (+ (+ x3 x4) (- x1 x2))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (32 enodes)
* [exit]simplify:  Simplified to (+ (+ (* (+ (+ (- x3 x4) x2) (- x1)) (* x4 x1)) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))) (* x2 (+ (+ x4 x3) (- x1 x2))))
* [exit]simplify:  Simplified to (+ (+ (* (+ (+ (- x3 x4) x2) (- x1)) (* x4 x1)) (* x3 (- (- x1 (* x2 x4)) (- (- x3 x4) x2)))) (* x2 (+ (+ x4 x3) (- x1 x2))))