* [misc]progress:  [Phase 1 of 3] Setting up.
* * * [misc]progress:  [1/2] Preparing points
* * * [misc]progress:  [2/2] Setting up program.
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan a)) b) (* c a))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan a)) b) (* a c))
* [misc]progress:  [Phase 2 of 3] Improving.
* * [misc]progress:  iteration 1 / 3
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-event (λ (a b c d) (- (hypot (sqrt (atan a)) b) (* c a)))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 2 ] generating series at (2 1 1)
* [misc]approximate:  Taking taylor expansion of (sqrt (atan a)) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan a)) in a
* [misc]taylor:  Taking taylor expansion of (atan a) in a
* [misc]backup-simplify:  Simplify (atan a) into (atan a)
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan a)))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan a)) in a
* [misc]taylor:  Taking taylor expansion of (atan a) in a
* [misc]backup-simplify:  Simplify (atan a) into (atan a)
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]approximate:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 a)) into (atan (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 a)) into (atan (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]approximate:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 (- a))) into (atan (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 (- a))) into (atan (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* * * * [misc]progress:  [ 2 / 2 ] generating series at (2 1)
* [misc]approximate:  Taking taylor expansion of (hypot (sqrt (atan a)) b) in (a b) around 0
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan a)) b) in b
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan a)) b) into (hypot (sqrt (atan a)) b)
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan a)) b) in a
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan a)) b) into (hypot (sqrt (atan a)) b)
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan a)) b) in a
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan a)) b) into (hypot (sqrt (atan a)) b)
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan a)) b) in b
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan a)) b) into (hypot (sqrt (atan a)) b)
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan a)) b) into (hypot (sqrt (atan a)) b)
* [misc]taylor:  Taking taylor expansion of 0 in b
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in b
* [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]taylor:  Taking taylor expansion of 0 in b
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan a)) b) into (hypot (sqrt (atan a)) b)
* [misc]approximate:  Taking taylor expansion of (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) in (a b) around 0
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) in b
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) into (hypot (sqrt (atan (/ 1 a))) (/ 1 b))
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) in a
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) into (hypot (sqrt (atan (/ 1 a))) (/ 1 b))
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) in a
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) into (hypot (sqrt (atan (/ 1 a))) (/ 1 b))
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) in b
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) into (hypot (sqrt (atan (/ 1 a))) (/ 1 b))
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) into (hypot (sqrt (atan (/ 1 a))) (/ 1 b))
* [misc]taylor:  Taking taylor expansion of 0 in b
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in b
* [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]taylor:  Taking taylor expansion of 0 in b
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) into (hypot (sqrt (atan (/ 1 a))) (/ 1 b))
* [misc]approximate:  Taking taylor expansion of (hypot (sqrt (atan (/ 1 (- a)))) (/ 1 (- b))) in (a b) around 0
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan (/ 1 (- a)))) (/ 1 (- b))) in b
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ 1 (- a)))) (/ 1 (- b))) into (hypot (sqrt (atan (/ -1 a))) (/ -1 b))
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan (/ 1 (- a)))) (/ 1 (- b))) in a
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ 1 (- a)))) (/ 1 (- b))) into (hypot (sqrt (atan (/ -1 a))) (/ -1 b))
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan (/ 1 (- a)))) (/ 1 (- b))) in a
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ 1 (- a)))) (/ 1 (- b))) into (hypot (sqrt (atan (/ -1 a))) (/ -1 b))
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) in b
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) into (hypot (sqrt (atan (/ -1 a))) (/ -1 b))
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) into (hypot (sqrt (atan (/ -1 a))) (/ -1 b))
* [misc]taylor:  Taking taylor expansion of 0 in b
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in b
* [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]taylor:  Taking taylor expansion of 0 in b
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) into (hypot (sqrt (atan (/ -1 a))) (/ -1 b))
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 2 ] rewriting at (2 1 1)
* * * * [misc]progress:  [ 2 / 2 ] rewriting at (2 1)
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 23 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan a)) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan a)) b) (* c a))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan a)) b) (* a c))
* * * * [misc]progress:  [ 2 / 23 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan (/ 1 a))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan (/ 1 a))) b) (* c a))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ 1 a))) b) (* a c))
* * * * [misc]progress:  [ 3 / 23 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan (/ -1 a))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan (/ -1 a))) b) (* c a))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ -1 a))) b) (* a c))
* * * * [misc]progress:  [ 4 / 23 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan a)) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan a)) b) (* c a))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan a)) b) (* a c))
* * * * [misc]progress:  [ 5 / 23 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) (* c a))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) (* c a))
* * * * [misc]progress:  [ 6 / 23 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) (* c a))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) (* c a))
* * * * [misc]progress:  [ 7 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (pow (atan a) 1/2) b) (* c a)))>
* * * * [misc]progress:  [ 8 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (pow (sqrt (atan a)) 1) b) (* c a)))>
* * * * [misc]progress:  [ 9 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (exp (log (sqrt (atan a)))) b) (* c a)))>
* [enter]simplify:  Simplifying (log (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (log (sqrt (atan a)))
* [exit]simplify:  Simplified to (log (sqrt (atan a)))
* * * * [misc]progress:  [ 10 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (log (exp (sqrt (atan a)))) b) (* c a)))>
* [enter]simplify:  Simplifying (exp (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (exp (sqrt (atan a)))
* [exit]simplify:  Simplified to (exp (sqrt (atan a)))
* * * * [misc]progress:  [ 11 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (cube (cbrt (sqrt (atan a)))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (cbrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (cbrt (sqrt (atan a)))
* * * * [misc]progress:  [ 12 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (cbrt (cube (sqrt (atan a)))) b) (* c a)))>
* [enter]simplify:  Simplifying (cube (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* * [misc]simplify:  iters left: 2 (6 enodes)
* * [misc]simplify:  iters left: 1 (8 enodes)
* [exit]simplify:  Simplified to (* (atan a) (sqrt (atan a)))
* [exit]simplify:  Simplified to (* (atan a) (sqrt (atan a)))
* * * * [misc]progress:  [ 13 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* (sqrt 1) (sqrt (atan a))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt 1)
* * [misc]simplify:  iters left: 1 (2 enodes)
* [exit]simplify:  Simplified to (sqrt 1)
* [exit]simplify:  Simplified to (sqrt 1)
* [enter]simplify:  Simplifying (sqrt (atan a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (sqrt (atan a))
* [exit]simplify:  Simplified to (sqrt (atan a))
* * * * [misc]progress:  [ 14 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (sqrt (atan a)))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* * * * [misc]progress:  [ 15 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (fabs (sqrt (atan a))) b) (* c a)))>
* * * * [misc]progress:  [ 16 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* 1 (sqrt (atan a))) b) (* c a)))>
* * * * [misc]progress:  [ 17 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (pow (hypot (sqrt (atan a)) b) 1) (* c a)))>
* * * * [misc]progress:  [ 18 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (exp (log (hypot (sqrt (atan a)) b))) (* c a)))>
* [enter]simplify:  Simplifying (log (hypot (sqrt (atan a)) b))
* * [misc]simplify:  iters left: 4 (6 enodes)
* [exit]simplify:  Simplified to (log (hypot (sqrt (atan a)) b))
* [exit]simplify:  Simplified to (log (hypot (sqrt (atan a)) b))
* * * * [misc]progress:  [ 19 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (log (exp (hypot (sqrt (atan a)) b))) (* c a)))>
* [enter]simplify:  Simplifying (exp (hypot (sqrt (atan a)) b))
* * [misc]simplify:  iters left: 4 (6 enodes)
* [exit]simplify:  Simplified to (exp (hypot (sqrt (atan a)) b))
* [exit]simplify:  Simplified to (exp (hypot (sqrt (atan a)) b))
* * * * [misc]progress:  [ 20 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (cube (cbrt (hypot (sqrt (atan a)) b))) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (hypot (sqrt (atan a)) b))
* * [misc]simplify:  iters left: 4 (6 enodes)
* [exit]simplify:  Simplified to (cbrt (hypot (sqrt (atan a)) b))
* [exit]simplify:  Simplified to (cbrt (hypot (sqrt (atan a)) b))
* * * * [misc]progress:  [ 21 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (cbrt (cube (hypot (sqrt (atan a)) b))) (* c a)))>
* [enter]simplify:  Simplifying (cube (hypot (sqrt (atan a)) b))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (10 enodes)
* [exit]simplify:  Simplified to (cube (hypot (sqrt (atan a)) b))
* [exit]simplify:  Simplified to (cube (hypot (sqrt (atan a)) b))
* * * * [misc]progress:  [ 22 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (sqr (sqrt (hypot (sqrt (atan a)) b))) (* c a)))>
* [enter]simplify:  Simplifying (sqrt (hypot (sqrt (atan a)) b))
* * [misc]simplify:  iters left: 4 (6 enodes)
* [exit]simplify:  Simplified to (sqrt (hypot (sqrt (atan a)) b))
* [exit]simplify:  Simplified to (sqrt (hypot (sqrt (atan a)) b))
* * * * [misc]progress:  [ 23 / 23 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (* 1 (hypot (sqrt (atan a)) b)) (* c a)))>
* * * [misc]progress:  adding candidates to table
* * [misc]progress:  iteration 2 / 3
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (sqrt (atan a)))) b) (* c a)))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 4 ] generating series at (2 1 1 1 1)
* [misc]approximate:  Taking taylor expansion of (sqrt (atan a)) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan a)) in a
* [misc]taylor:  Taking taylor expansion of (atan a) in a
* [misc]backup-simplify:  Simplify (atan a) into (atan a)
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan a)))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan a)) in a
* [misc]taylor:  Taking taylor expansion of (atan a) in a
* [misc]backup-simplify:  Simplify (atan a) into (atan a)
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]approximate:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 a)) into (atan (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 a)) into (atan (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]approximate:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 (- a))) into (atan (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 (- a))) into (atan (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* * * * [misc]progress:  [ 2 / 4 ] generating series at (2 1 1)
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (sqrt (atan a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (atan a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (atan a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (atan a)) in a
* [misc]taylor:  Taking taylor expansion of (atan a) in a
* [misc]backup-simplify:  Simplify (atan a) into (atan a)
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (atan a))) into (pow (atan a) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (atan a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (atan a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (atan a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (atan a)) in a
* [misc]taylor:  Taking taylor expansion of (atan a) in a
* [misc]backup-simplify:  Simplify (atan a) into (atan a)
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (atan a))) into (pow (atan a) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (atan a))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (atan a) 1/4) (pow (atan a) 1/4)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (+ (* (pow (atan a) 1/4) 0) (* 0 (pow (atan a) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (atan a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan a) 1/4) 0) (+ (* 0 0) (* 0 (pow (atan a) 1/4)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (atan a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan a) 1/4))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (atan a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan a) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (atan a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan a) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (atan a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan a) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (sqrt (atan (/ 1 a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (atan (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (atan (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 a)) into (atan (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (atan (/ 1 a)))) into (pow (atan (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (atan (/ 1 a)))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (atan (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (atan (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 a)) into (atan (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (atan (/ 1 a)))) into (pow (atan (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (atan (/ 1 a)))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (atan (/ 1 a)) 1/4) (pow (atan (/ 1 a)) 1/4)) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ 1 a)) 1/4) 0) (* 0 (pow (atan (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (atan (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ 1 a)) 1/4) 0) (+ (* 0 0) (* 0 (pow (atan (/ 1 a)) 1/4)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (atan (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ 1 a)) 1/4))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (atan (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ 1 a)) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (atan (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ 1 a)) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (atan (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ 1 a)) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (sqrt (atan (/ 1 (- a)))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (atan (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (atan (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 (- a))) into (atan (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (atan (/ -1 a)))) into (pow (atan (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (atan (/ -1 a)))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (atan (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (atan (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 (- a))) into (atan (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (atan (/ -1 a)))) into (pow (atan (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (atan (/ -1 a)))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (atan (/ -1 a)) 1/4) (pow (atan (/ -1 a)) 1/4)) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ -1 a)) 1/4) 0) (* 0 (pow (atan (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (atan (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ -1 a)) 1/4) 0) (+ (* 0 0) (* 0 (pow (atan (/ -1 a)) 1/4)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (atan (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ -1 a)) 1/4))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (atan (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ -1 a)) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (atan (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ -1 a)) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (atan (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ -1 a)) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* * * * [misc]progress:  [ 3 / 4 ] generating series at (2 1 1 1)
* [misc]approximate:  Taking taylor expansion of (sqrt (sqrt (atan a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (atan a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (atan a)) in a
* [misc]taylor:  Taking taylor expansion of (atan a) in a
* [misc]backup-simplify:  Simplify (atan a) into (atan a)
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (atan a))) into (pow (atan a) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (atan a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (atan a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (atan a)) in a
* [misc]taylor:  Taking taylor expansion of (atan a) in a
* [misc]backup-simplify:  Simplify (atan a) into (atan a)
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (atan a))) into (pow (atan a) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (atan a))))) into 0
* [misc]backup-simplify:  Simplify (pow (atan a) 1/4) into (pow (atan a) 1/4)
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (atan a) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (atan a) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (atan a) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (atan a) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (atan a) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (pow (atan a) 1/4) into (pow (atan a) 1/4)
* [misc]approximate:  Taking taylor expansion of (sqrt (sqrt (atan (/ 1 a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (atan (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 a)) into (atan (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (atan (/ 1 a)))) into (pow (atan (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (atan (/ 1 a)))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (atan (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 a)) into (atan (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (atan (/ 1 a)))) into (pow (atan (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (atan (/ 1 a)))))) into 0
* [misc]backup-simplify:  Simplify (pow (atan (/ 1 a)) 1/4) into (pow (atan (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (atan (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (atan (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (atan (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (atan (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (atan (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (pow (atan (/ 1 a)) 1/4) into (pow (atan (/ 1 a)) 1/4)
* [misc]approximate:  Taking taylor expansion of (sqrt (sqrt (atan (/ 1 (- a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (atan (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 (- a))) into (atan (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (atan (/ -1 a)))) into (pow (atan (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (atan (/ -1 a)))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (atan (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 (- a))) into (atan (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (atan (/ -1 a)))) into (pow (atan (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (atan (/ -1 a)))))) into 0
* [misc]backup-simplify:  Simplify (pow (atan (/ -1 a)) 1/4) into (pow (atan (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (atan (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (atan (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (atan (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (atan (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (atan (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (pow (atan (/ -1 a)) 1/4) into (pow (atan (/ -1 a)) 1/4)
* * * * [misc]progress:  [ 4 / 4 ] generating series at (2 1)
* [misc]approximate:  Taking taylor expansion of (hypot (sqr (sqrt (sqrt (atan a)))) b) in (a b) around 0
* [misc]taylor:  Taking taylor expansion of (hypot (sqr (sqrt (sqrt (atan a)))) b) in b
* [misc]backup-simplify:  Simplify (hypot (sqr (sqrt (sqrt (atan a)))) b) into (hypot (sqrt (atan a)) b)
* [misc]taylor:  Taking taylor expansion of (hypot (sqr (sqrt (sqrt (atan a)))) b) in a
* [misc]backup-simplify:  Simplify (hypot (sqr (sqrt (sqrt (atan a)))) b) into (hypot (sqrt (atan a)) b)
* [misc]taylor:  Taking taylor expansion of (hypot (sqr (sqrt (sqrt (atan a)))) b) in a
* [misc]backup-simplify:  Simplify (hypot (sqr (sqrt (sqrt (atan a)))) b) into (hypot (sqrt (atan a)) b)
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan a)) b) in b
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan a)) b) into (hypot (sqrt (atan a)) b)
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan a)) b) into (hypot (sqrt (atan a)) b)
* [misc]taylor:  Taking taylor expansion of 0 in b
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in b
* [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]taylor:  Taking taylor expansion of 0 in b
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan a)) b) into (hypot (sqrt (atan a)) b)
* [misc]approximate:  Taking taylor expansion of (hypot (sqr (sqrt (sqrt (atan (/ 1 a))))) (/ 1 b)) in (a b) around 0
* [misc]taylor:  Taking taylor expansion of (hypot (sqr (sqrt (sqrt (atan (/ 1 a))))) (/ 1 b)) in b
* [misc]backup-simplify:  Simplify (hypot (sqr (sqrt (sqrt (atan (/ 1 a))))) (/ 1 b)) into (hypot (sqrt (atan (/ 1 a))) (/ 1 b))
* [misc]taylor:  Taking taylor expansion of (hypot (sqr (sqrt (sqrt (atan (/ 1 a))))) (/ 1 b)) in a
* [misc]backup-simplify:  Simplify (hypot (sqr (sqrt (sqrt (atan (/ 1 a))))) (/ 1 b)) into (hypot (sqrt (atan (/ 1 a))) (/ 1 b))
* [misc]taylor:  Taking taylor expansion of (hypot (sqr (sqrt (sqrt (atan (/ 1 a))))) (/ 1 b)) in a
* [misc]backup-simplify:  Simplify (hypot (sqr (sqrt (sqrt (atan (/ 1 a))))) (/ 1 b)) into (hypot (sqrt (atan (/ 1 a))) (/ 1 b))
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) in b
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) into (hypot (sqrt (atan (/ 1 a))) (/ 1 b))
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) into (hypot (sqrt (atan (/ 1 a))) (/ 1 b))
* [misc]taylor:  Taking taylor expansion of 0 in b
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in b
* [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]taylor:  Taking taylor expansion of 0 in b
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) into (hypot (sqrt (atan (/ 1 a))) (/ 1 b))
* [misc]approximate:  Taking taylor expansion of (hypot (sqr (sqrt (sqrt (atan (/ 1 (- a)))))) (/ 1 (- b))) in (a b) around 0
* [misc]taylor:  Taking taylor expansion of (hypot (sqr (sqrt (sqrt (atan (/ 1 (- a)))))) (/ 1 (- b))) in b
* [misc]backup-simplify:  Simplify (hypot (sqr (sqrt (sqrt (atan (/ 1 (- a)))))) (/ 1 (- b))) into (hypot (sqrt (atan (/ -1 a))) (/ -1 b))
* [misc]taylor:  Taking taylor expansion of (hypot (sqr (sqrt (sqrt (atan (/ 1 (- a)))))) (/ 1 (- b))) in a
* [misc]backup-simplify:  Simplify (hypot (sqr (sqrt (sqrt (atan (/ 1 (- a)))))) (/ 1 (- b))) into (hypot (sqrt (atan (/ -1 a))) (/ -1 b))
* [misc]taylor:  Taking taylor expansion of (hypot (sqr (sqrt (sqrt (atan (/ 1 (- a)))))) (/ 1 (- b))) in a
* [misc]backup-simplify:  Simplify (hypot (sqr (sqrt (sqrt (atan (/ 1 (- a)))))) (/ 1 (- b))) into (hypot (sqrt (atan (/ -1 a))) (/ -1 b))
* [misc]taylor:  Taking taylor expansion of (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) in b
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) into (hypot (sqrt (atan (/ -1 a))) (/ -1 b))
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) into (hypot (sqrt (atan (/ -1 a))) (/ -1 b))
* [misc]taylor:  Taking taylor expansion of 0 in b
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in b
* [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]taylor:  Taking taylor expansion of 0 in b
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) into (hypot (sqrt (atan (/ -1 a))) (/ -1 b))
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 4 ] rewriting at (2 1 1 1 1)
* * * * [misc]progress:  [ 2 / 4 ] rewriting at (2 1 1)
* * * * [misc]progress:  [ 3 / 4 ] rewriting at (2 1 1 1)
* * * * [misc]progress:  [ 4 / 4 ] rewriting at (2 1)
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 52 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (sqrt (sqrt (atan a)))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (sqrt (sqrt (atan a)))) b) (* c a))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan a)) b) (* c a))
* * * * [misc]progress:  [ 2 / 52 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (sqrt (sqrt (atan (/ 1 a))))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (sqrt (sqrt (atan (/ 1 a))))) b) (* c a))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ 1 a))) b) (* a c))
* * * * [misc]progress:  [ 3 / 52 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (sqrt (sqrt (atan (/ -1 a))))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (sqrt (sqrt (atan (/ -1 a))))) b) (* c a))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (15 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ -1 a))) b) (* a c))
* * * * [misc]progress:  [ 4 / 52 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan a)) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan a)) b) (* c a))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan a)) b) (* a c))
* * * * [misc]progress:  [ 5 / 52 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan (/ 1 a))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan (/ 1 a))) b) (* c a))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ 1 a))) b) (* a c))
* * * * [misc]progress:  [ 6 / 52 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan (/ -1 a))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan (/ -1 a))) b) (* c a))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ -1 a))) b) (* a c))
* * * * [misc]progress:  [ 7 / 52 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (pow (atan a) 1/4)) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (pow (atan a) 1/4)) b) (* c a))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (- (hypot (* (pow (atan a) 1/4) (pow (atan a) 1/4)) b) (* c a))
* * * * [misc]progress:  [ 8 / 52 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (pow (atan (/ 1 a)) 1/4)) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (pow (atan (/ 1 a)) 1/4)) b) (* c a))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* [exit]simplify:  Simplified to (- (hypot (* (pow (atan (/ 1 a)) 1/4) (pow (atan (/ 1 a)) 1/4)) b) (* a c))
* * * * [misc]progress:  [ 9 / 52 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (pow (atan (/ -1 a)) 1/4)) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (pow (atan (/ -1 a)) 1/4)) b) (* c a))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* [exit]simplify:  Simplified to (- (hypot (* (pow (atan (/ -1 a)) 1/4) (pow (atan (/ -1 a)) 1/4)) b) (* a c))
* * * * [misc]progress:  [ 10 / 52 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan a)) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan a)) b) (* c a))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan a)) b) (* a c))
* * * * [misc]progress:  [ 11 / 52 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) (* c a))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ 1 a))) (/ 1 b)) (* c a))
* * * * [misc]progress:  [ 12 / 52 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) (* c a))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ -1 a))) (/ -1 b)) (* c a))
* * * * [misc]progress:  [ 13 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (pow (atan a) 1/2))) b) (* c a)))>
* * * * [misc]progress:  [ 14 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (pow (sqrt (atan a)) 1))) b) (* c a)))>
* * * * [misc]progress:  [ 15 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (exp (log (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (log (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (log (sqrt (atan a)))
* [exit]simplify:  Simplified to (log (sqrt (atan a)))
* * * * [misc]progress:  [ 16 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (log (exp (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (exp (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (exp (sqrt (atan a)))
* [exit]simplify:  Simplified to (exp (sqrt (atan a)))
* * * * [misc]progress:  [ 17 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (cube (cbrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (cbrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (cbrt (sqrt (atan a)))
* * * * [misc]progress:  [ 18 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (cbrt (cube (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cube (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* * [misc]simplify:  iters left: 2 (6 enodes)
* * [misc]simplify:  iters left: 1 (8 enodes)
* [exit]simplify:  Simplified to (* (atan a) (sqrt (atan a)))
* [exit]simplify:  Simplified to (* (atan a) (sqrt (atan a)))
* * * * [misc]progress:  [ 19 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (* (sqrt 1) (sqrt (atan a))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt 1)
* * [misc]simplify:  iters left: 1 (2 enodes)
* [exit]simplify:  Simplified to (sqrt 1)
* [exit]simplify:  Simplified to (sqrt 1)
* [enter]simplify:  Simplifying (sqrt (atan a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (sqrt (atan a))
* [exit]simplify:  Simplified to (sqrt (atan a))
* * * * [misc]progress:  [ 20 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (sqr (sqrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* * * * [misc]progress:  [ 21 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (fabs (sqrt (atan a))))) b) (* c a)))>
* * * * [misc]progress:  [ 22 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (* 1 (sqrt (atan a))))) b) (* c a)))>
* * * * [misc]progress:  [ 23 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (pow (sqrt (sqrt (atan a))) 2) b) (* c a)))>
* * * * [misc]progress:  [ 24 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (pow (sqr (sqrt (sqrt (atan a)))) 1) b) (* c a)))>
* * * * [misc]progress:  [ 25 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (exp (log (sqr (sqrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (log (sqr (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* [exit]simplify:  Simplified to (log (sqrt (atan a)))
* [exit]simplify:  Simplified to (log (sqrt (atan a)))
* * * * [misc]progress:  [ 26 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (log (exp (sqr (sqrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (exp (sqr (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* [exit]simplify:  Simplified to (exp (sqrt (atan a)))
* [exit]simplify:  Simplified to (exp (sqrt (atan a)))
* * * * [misc]progress:  [ 27 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (cube (cbrt (sqr (sqrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (sqr (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* [exit]simplify:  Simplified to (cbrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (cbrt (sqrt (atan a)))
* * * * [misc]progress:  [ 28 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (cbrt (cube (sqr (sqrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cube (sqr (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (16 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* * [misc]simplify:  iters left: 1 (26 enodes)
* [exit]simplify:  Simplified to (* (sqrt (atan a)) (atan a))
* [exit]simplify:  Simplified to (* (sqrt (atan a)) (atan a))
* * * * [misc]progress:  [ 29 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (sqr (sqrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt (sqr (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (10 enodes)
* * [misc]simplify:  iters left: 1 (11 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* * * * [misc]progress:  [ 30 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* (sqr (sqrt (sqrt 1))) (sqr (sqrt (sqrt (atan a))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqr (sqrt (sqrt 1)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* * [misc]simplify:  iters left: 1 (8 enodes)
* [exit]simplify:  Simplified to (sqrt 1)
* [exit]simplify:  Simplified to (sqrt 1)
* [enter]simplify:  Simplifying (sqr (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* [exit]simplify:  Simplified to (sqrt (atan a))
* [exit]simplify:  Simplified to (sqrt (atan a))
* * * * [misc]progress:  [ 31 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* (sqr (sqrt 1)) (sqr (sqrt (sqrt (atan a))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqr (sqrt 1))
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (6 enodes)
* [exit]simplify:  Simplified to 1
* [exit]simplify:  Simplified to 1
* [enter]simplify:  Simplifying (sqr (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* [exit]simplify:  Simplified to (sqrt (atan a))
* [exit]simplify:  Simplified to (sqrt (atan a))
* * * * [misc]progress:  [ 32 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* (sqr 1) (sqr (sqrt (sqrt (atan a))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqr 1)
* * [misc]simplify:  iters left: 1 (2 enodes)
* [exit]simplify:  Simplified to (sqr 1)
* [exit]simplify:  Simplified to (sqr 1)
* [enter]simplify:  Simplifying (sqr (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* [exit]simplify:  Simplified to (sqrt (atan a))
* [exit]simplify:  Simplified to (sqrt (atan a))
* * * * [misc]progress:  [ 33 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* (sqrt (sqrt (atan a))) (sqrt (sqrt (atan a)))) b) (* c a)))>
* * * * [misc]progress:  [ 34 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* 1 (sqr (sqrt (sqrt (atan a))))) b) (* c a)))>
* * * * [misc]progress:  [ 35 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (pow (sqrt (atan a)) 1/2)) b) (* c a)))>
* * * * [misc]progress:  [ 36 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (pow (sqrt (sqrt (atan a))) 1)) b) (* c a)))>
* * * * [misc]progress:  [ 37 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (exp (log (sqrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (log (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* [exit]simplify:  Simplified to (log (sqrt (sqrt (atan a))))
* [exit]simplify:  Simplified to (log (sqrt (sqrt (atan a))))
* * * * [misc]progress:  [ 38 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (log (exp (sqrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (exp (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* [exit]simplify:  Simplified to (exp (sqrt (sqrt (atan a))))
* [exit]simplify:  Simplified to (exp (sqrt (sqrt (atan a))))
* * * * [misc]progress:  [ 39 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cube (cbrt (sqrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* [exit]simplify:  Simplified to (cbrt (sqrt (sqrt (atan a))))
* [exit]simplify:  Simplified to (cbrt (sqrt (sqrt (atan a))))
* * * * [misc]progress:  [ 40 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cube (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* [exit]simplify:  Simplified to (* (sqrt (sqrt (atan a))) (sqrt (atan a)))
* [exit]simplify:  Simplified to (* (sqrt (sqrt (atan a))) (sqrt (atan a)))
* * * * [misc]progress:  [ 41 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (* (sqrt (sqrt 1)) (sqrt (sqrt (atan a))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt (sqrt 1))
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt 1))
* [exit]simplify:  Simplified to (sqrt (sqrt 1))
* [enter]simplify:  Simplifying (sqrt (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* * * * [misc]progress:  [ 42 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (* (sqrt 1) (sqrt (sqrt (atan a))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt 1)
* * [misc]simplify:  iters left: 1 (2 enodes)
* [exit]simplify:  Simplified to (sqrt 1)
* [exit]simplify:  Simplified to (sqrt 1)
* [enter]simplify:  Simplifying (sqrt (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* * * * [misc]progress:  [ 43 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqr (sqrt (sqrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (sqrt (atan a))))
* [exit]simplify:  Simplified to (sqrt (sqrt (sqrt (atan a))))
* * * * [misc]progress:  [ 44 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (fabs (sqrt (sqrt (atan a))))) b) (* c a)))>
* * * * [misc]progress:  [ 45 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (* 1 (sqrt (sqrt (atan a))))) b) (* c a)))>
* * * * [misc]progress:  [ 46 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (pow (hypot (sqr (sqrt (sqrt (atan a)))) b) 1) (* c a)))>
* * * * [misc]progress:  [ 47 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (exp (log (hypot (sqr (sqrt (sqrt (atan a)))) b))) (* c a)))>
* [enter]simplify:  Simplifying (log (hypot (sqr (sqrt (sqrt (atan a)))) b))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (log (hypot (sqrt (atan a)) b))
* [exit]simplify:  Simplified to (log (hypot (sqrt (atan a)) b))
* * * * [misc]progress:  [ 48 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (log (exp (hypot (sqr (sqrt (sqrt (atan a)))) b))) (* c a)))>
* [enter]simplify:  Simplifying (exp (hypot (sqr (sqrt (sqrt (atan a)))) b))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (exp (hypot (sqrt (atan a)) b))
* [exit]simplify:  Simplified to (exp (hypot (sqrt (atan a)) b))
* * * * [misc]progress:  [ 49 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (cube (cbrt (hypot (sqr (sqrt (sqrt (atan a)))) b))) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (hypot (sqr (sqrt (sqrt (atan a)))) b))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (cbrt (hypot (sqrt (atan a)) b))
* [exit]simplify:  Simplified to (cbrt (hypot (sqrt (atan a)) b))
* * * * [misc]progress:  [ 50 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (cbrt (cube (hypot (sqr (sqrt (sqrt (atan a)))) b))) (* c a)))>
* [enter]simplify:  Simplifying (cube (hypot (sqr (sqrt (sqrt (atan a)))) b))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* [exit]simplify:  Simplified to (cube (hypot (sqrt (atan a)) b))
* [exit]simplify:  Simplified to (cube (hypot (sqrt (atan a)) b))
* * * * [misc]progress:  [ 51 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (sqr (sqrt (hypot (sqr (sqrt (sqrt (atan a)))) b))) (* c a)))>
* [enter]simplify:  Simplifying (sqrt (hypot (sqr (sqrt (sqrt (atan a)))) b))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (sqrt (hypot (sqrt (atan a)) b))
* [exit]simplify:  Simplified to (sqrt (hypot (sqrt (atan a)) b))
* * * * [misc]progress:  [ 52 / 52 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (* 1 (hypot (sqr (sqrt (sqrt (atan a)))) b)) (* c a)))>
* * * [misc]progress:  adding candidates to table
* * [misc]progress:  iteration 3 / 3
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (sqrt (atan a)))))) b) (* c a)))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 4 ] generating series at (2 1 1 1 1)
* [misc]approximate:  Taking taylor expansion of (cube (sqrt (sqrt (atan a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (cube (sqrt (sqrt (atan a)))) in a
* [misc]backup-simplify:  Simplify (cube (sqrt (sqrt (atan a)))) into (cube (pow (atan a) 1/4))
* [misc]taylor:  Taking taylor expansion of (cube (sqrt (sqrt (atan a)))) in a
* [misc]backup-simplify:  Simplify (cube (sqrt (sqrt (atan a)))) into (cube (pow (atan a) 1/4))
* [misc]backup-simplify:  Simplify (cube (pow (atan a) 1/4)) into (cube (pow (atan a) 1/4))
* [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 (cube (pow (atan a) 1/4)) into (cube (pow (atan a) 1/4))
* [misc]approximate:  Taking taylor expansion of (cube (sqrt (sqrt (atan (/ 1 a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (cube (sqrt (sqrt (atan (/ 1 a))))) in a
* [misc]backup-simplify:  Simplify (cube (sqrt (sqrt (atan (/ 1 a))))) into (cube (pow (atan (/ 1 a)) 1/4))
* [misc]taylor:  Taking taylor expansion of (cube (sqrt (sqrt (atan (/ 1 a))))) in a
* [misc]backup-simplify:  Simplify (cube (sqrt (sqrt (atan (/ 1 a))))) into (cube (pow (atan (/ 1 a)) 1/4))
* [misc]backup-simplify:  Simplify (cube (pow (atan (/ 1 a)) 1/4)) into (cube (pow (atan (/ 1 a)) 1/4))
* [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 (cube (pow (atan (/ 1 a)) 1/4)) into (cube (pow (atan (/ 1 a)) 1/4))
* [misc]approximate:  Taking taylor expansion of (cube (sqrt (sqrt (atan (/ 1 (- a)))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (cube (sqrt (sqrt (atan (/ 1 (- a)))))) in a
* [misc]backup-simplify:  Simplify (cube (sqrt (sqrt (atan (/ 1 (- a)))))) into (cube (pow (atan (/ -1 a)) 1/4))
* [misc]taylor:  Taking taylor expansion of (cube (sqrt (sqrt (atan (/ 1 (- a)))))) in a
* [misc]backup-simplify:  Simplify (cube (sqrt (sqrt (atan (/ 1 (- a)))))) into (cube (pow (atan (/ -1 a)) 1/4))
* [misc]backup-simplify:  Simplify (cube (pow (atan (/ -1 a)) 1/4)) into (cube (pow (atan (/ -1 a)) 1/4))
* [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 (cube (pow (atan (/ -1 a)) 1/4)) into (cube (pow (atan (/ -1 a)) 1/4))
* * * * [misc]progress:  [ 2 / 4 ] generating series at (2 1 1 1 1 1 1)
* [misc]approximate:  Taking taylor expansion of (sqrt (atan a)) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan a)) in a
* [misc]taylor:  Taking taylor expansion of (atan a) in a
* [misc]backup-simplify:  Simplify (atan a) into (atan a)
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan a)))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan a)) in a
* [misc]taylor:  Taking taylor expansion of (atan a) in a
* [misc]backup-simplify:  Simplify (atan a) into (atan a)
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]approximate:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 a)) into (atan (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 a)) into (atan (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]approximate:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 (- a))) into (atan (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (atan (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (atan (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (atan (/ 1 (- a))) into (atan (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (atan (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* * * * [misc]progress:  [ 3 / 4 ] generating series at (2 1 1 1)
* [misc]approximate:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan a))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (sqrt (sqrt (atan a))))) into (pow (atan a) 1/4)
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan a))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (sqrt (sqrt (atan a))))) into (pow (atan a) 1/4)
* [misc]backup-simplify:  Simplify (pow (atan a) 1/4) into (pow (atan a) 1/4)
* [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 (pow (atan a) 1/4) into (pow (atan a) 1/4)
* [misc]approximate:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan (/ 1 a)))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan (/ 1 a)))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (sqrt (sqrt (atan (/ 1 a)))))) into (pow (atan (/ 1 a)) 1/4)
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan (/ 1 a)))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (sqrt (sqrt (atan (/ 1 a)))))) into (pow (atan (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify (pow (atan (/ 1 a)) 1/4) into (pow (atan (/ 1 a)) 1/4)
* [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 (pow (atan (/ 1 a)) 1/4) into (pow (atan (/ 1 a)) 1/4)
* [misc]approximate:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan (/ 1 (- a))))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan (/ 1 (- a))))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (sqrt (sqrt (atan (/ 1 (- a))))))) into (pow (atan (/ -1 a)) 1/4)
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan (/ 1 (- a))))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (sqrt (sqrt (atan (/ 1 (- a))))))) into (pow (atan (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify (pow (atan (/ -1 a)) 1/4) into (pow (atan (/ -1 a)) 1/4)
* [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 (pow (atan (/ -1 a)) 1/4) into (pow (atan (/ -1 a)) 1/4)
* * * * [misc]progress:  [ 4 / 4 ] generating series at (2 1 1)
* [misc]approximate:  Taking taylor expansion of (sqr (cbrt (cube (sqrt (sqrt (atan a)))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (cbrt (cube (sqrt (sqrt (atan a)))))) in a
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan a))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (sqrt (sqrt (atan a))))) into (pow (atan a) 1/4)
* [misc]taylor:  Taking taylor expansion of (sqr (cbrt (cube (sqrt (sqrt (atan a)))))) in a
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan a))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (sqrt (sqrt (atan a))))) into (pow (atan a) 1/4)
* [misc]backup-simplify:  Simplify (* (pow (atan a) 1/4) (pow (atan a) 1/4)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]backup-simplify:  Simplify (+ (* (pow (atan a) 1/4) 0) (* 0 (pow (atan a) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan a) 1/4) 0) (+ (* 0 0) (* 0 (pow (atan a) 1/4)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan a) 1/4))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan a) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan a) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan a) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan a)) into (sqrt (atan a))
* [misc]approximate:  Taking taylor expansion of (sqr (cbrt (cube (sqrt (sqrt (atan (/ 1 a))))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (cbrt (cube (sqrt (sqrt (atan (/ 1 a))))))) in a
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan (/ 1 a)))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (sqrt (sqrt (atan (/ 1 a)))))) into (pow (atan (/ 1 a)) 1/4)
* [misc]taylor:  Taking taylor expansion of (sqr (cbrt (cube (sqrt (sqrt (atan (/ 1 a))))))) in a
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan (/ 1 a)))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (sqrt (sqrt (atan (/ 1 a)))))) into (pow (atan (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify (* (pow (atan (/ 1 a)) 1/4) (pow (atan (/ 1 a)) 1/4)) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ 1 a)) 1/4) 0) (* 0 (pow (atan (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ 1 a)) 1/4) 0) (+ (* 0 0) (* 0 (pow (atan (/ 1 a)) 1/4)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ 1 a)) 1/4))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ 1 a)) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ 1 a)) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ 1 a)) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ 1 a))) into (sqrt (atan (/ 1 a)))
* [misc]approximate:  Taking taylor expansion of (sqr (cbrt (cube (sqrt (sqrt (atan (/ 1 (- a)))))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (cbrt (cube (sqrt (sqrt (atan (/ 1 (- a)))))))) in a
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan (/ 1 (- a))))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (sqrt (sqrt (atan (/ 1 (- a))))))) into (pow (atan (/ -1 a)) 1/4)
* [misc]taylor:  Taking taylor expansion of (sqr (cbrt (cube (sqrt (sqrt (atan (/ 1 (- a)))))))) in a
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (sqrt (sqrt (atan (/ 1 (- a))))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (sqrt (sqrt (atan (/ 1 (- a))))))) into (pow (atan (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify (* (pow (atan (/ -1 a)) 1/4) (pow (atan (/ -1 a)) 1/4)) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ -1 a)) 1/4) 0) (* 0 (pow (atan (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ -1 a)) 1/4) 0) (+ (* 0 0) (* 0 (pow (atan (/ -1 a)) 1/4)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ -1 a)) 1/4))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ -1 a)) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ -1 a)) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (atan (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (atan (/ -1 a)) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (atan (/ -1 a))) into (sqrt (atan (/ -1 a)))
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 4 ] rewriting at (2 1 1 1 1)
* * * * [misc]progress:  [ 2 / 4 ] rewriting at (2 1 1 1 1 1 1)
* * * * [misc]progress:  [ 3 / 4 ] rewriting at (2 1 1 1)
* * * * [misc]progress:  [ 4 / 4 ] rewriting at (2 1 1)
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 62 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (cbrt (cube (pow (atan a) 1/4)))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (cbrt (cube (pow (atan a) 1/4)))) b) (* c a))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (20 enodes)
* * [misc]simplify:  iters left: 3 (24 enodes)
* [exit]simplify:  Simplified to (- (hypot (* (pow (atan a) 1/4) (pow (atan a) 1/4)) b) (* c a))
* * * * [misc]progress:  [ 2 / 62 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (cbrt (cube (pow (atan (/ 1 a)) 1/4)))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (cbrt (cube (pow (atan (/ 1 a)) 1/4)))) b) (* c a))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (24 enodes)
* * [misc]simplify:  iters left: 3 (28 enodes)
* [exit]simplify:  Simplified to (- (hypot (* (pow (atan (/ 1 a)) 1/4) (pow (atan (/ 1 a)) 1/4)) b) (* a c))
* * * * [misc]progress:  [ 3 / 62 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (cbrt (cube (pow (atan (/ -1 a)) 1/4)))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (cbrt (cube (pow (atan (/ -1 a)) 1/4)))) b) (* c a))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (22 enodes)
* * [misc]simplify:  iters left: 3 (26 enodes)
* [exit]simplify:  Simplified to (- (hypot (* (pow (atan (/ -1 a)) 1/4) (pow (atan (/ -1 a)) 1/4)) b) (* a c))
* * * * [misc]progress:  [ 4 / 62 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (sqrt (atan a)))))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (cbrt (cube (sqrt (sqrt (atan a)))))) b) (* c a))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (20 enodes)
* * [misc]simplify:  iters left: 3 (25 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan a)) b) (* c a))
* * * * [misc]progress:  [ 5 / 62 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (sqrt (atan (/ 1 a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (cbrt (cube (sqrt (sqrt (atan (/ 1 a))))))) b) (* c a))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (24 enodes)
* * [misc]simplify:  iters left: 3 (29 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ 1 a))) b) (* a c))
* * * * [misc]progress:  [ 6 / 62 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (sqrt (atan (/ -1 a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (cbrt (cube (sqrt (sqrt (atan (/ -1 a))))))) b) (* c a))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (22 enodes)
* * [misc]simplify:  iters left: 3 (27 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ -1 a))) b) (* a c))
* * * * [misc]progress:  [ 7 / 62 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (pow (atan a) 1/4)) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (pow (atan a) 1/4)) b) (* c a))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (- (hypot (* (pow (atan a) 1/4) (pow (atan a) 1/4)) b) (* c a))
* * * * [misc]progress:  [ 8 / 62 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (pow (atan (/ 1 a)) 1/4)) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (pow (atan (/ 1 a)) 1/4)) b) (* c a))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* [exit]simplify:  Simplified to (- (hypot (* (pow (atan (/ 1 a)) 1/4) (pow (atan (/ 1 a)) 1/4)) b) (* a c))
* * * * [misc]progress:  [ 9 / 62 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqr (pow (atan (/ -1 a)) 1/4)) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqr (pow (atan (/ -1 a)) 1/4)) b) (* c a))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* [exit]simplify:  Simplified to (- (hypot (* (pow (atan (/ -1 a)) 1/4) (pow (atan (/ -1 a)) 1/4)) b) (* a c))
* * * * [misc]progress:  [ 10 / 62 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan a)) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan a)) b) (* c a))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan a)) b) (* a c))
* * * * [misc]progress:  [ 11 / 62 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan (/ 1 a))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan (/ 1 a))) b) (* c a))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ 1 a))) b) (* a c))
* * * * [misc]progress:  [ 12 / 62 ] simplifiying candidate #<alt-event (λ (a b c d) (- (hypot (sqrt (atan (/ -1 a))) b) (* c a)))>
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan (/ -1 a))) b) (* c a))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan (/ -1 a))) b) (* a c))
* * * * [misc]progress:  [ 13 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (pow (sqrt (sqrt (atan a))) 3))) b) (* c a)))>
* * * * [misc]progress:  [ 14 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (pow (cube (sqrt (sqrt (atan a)))) 1))) b) (* c a)))>
* * * * [misc]progress:  [ 15 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (exp (log (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (log (cube (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (13 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (log (* (sqrt (atan a)) (sqrt (sqrt (atan a)))))
* [exit]simplify:  Simplified to (log (* (sqrt (atan a)) (sqrt (sqrt (atan a)))))
* * * * [misc]progress:  [ 16 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (log (exp (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (exp (cube (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* [exit]simplify:  Simplified to (exp (* (sqrt (atan a)) (sqrt (sqrt (atan a)))))
* [exit]simplify:  Simplified to (exp (* (sqrt (atan a)) (sqrt (sqrt (atan a)))))
* * * * [misc]progress:  [ 17 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (cbrt (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (cube (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (13 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* * * * [misc]progress:  [ 18 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cbrt (cube (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cube (cube (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (17 enodes)
* * [misc]simplify:  iters left: 2 (23 enodes)
* * [misc]simplify:  iters left: 1 (28 enodes)
* [exit]simplify:  Simplified to (* (* (sqrt (atan a)) (atan a)) (* (sqrt (atan a)) (sqrt (sqrt (atan a)))))
* [exit]simplify:  Simplified to (* (* (sqrt (atan a)) (atan a)) (* (sqrt (atan a)) (sqrt (sqrt (atan a)))))
* * * * [misc]progress:  [ 19 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (* (cube (sqrt (sqrt 1))) (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cube (sqrt (sqrt 1)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* * [misc]simplify:  iters left: 2 (8 enodes)
* * [misc]simplify:  iters left: 1 (10 enodes)
* [exit]simplify:  Simplified to (* (sqrt (sqrt 1)) (sqrt 1))
* [exit]simplify:  Simplified to (* (sqrt (sqrt 1)) (sqrt 1))
* [enter]simplify:  Simplifying (cube (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* [exit]simplify:  Simplified to (* (sqrt (sqrt (atan a))) (sqrt (atan a)))
* [exit]simplify:  Simplified to (* (sqrt (sqrt (atan a))) (sqrt (atan a)))
* * * * [misc]progress:  [ 20 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (* (cube (sqrt 1)) (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cube (sqrt 1))
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (7 enodes)
* [exit]simplify:  Simplified to (cube (sqrt 1))
* [exit]simplify:  Simplified to (cube (sqrt 1))
* [enter]simplify:  Simplifying (cube (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* [exit]simplify:  Simplified to (* (sqrt (sqrt (atan a))) (sqrt (atan a)))
* [exit]simplify:  Simplified to (* (sqrt (sqrt (atan a))) (sqrt (atan a)))
* * * * [misc]progress:  [ 21 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (* (cube 1) (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cube 1)
* * [misc]simplify:  iters left: 1 (2 enodes)
* [exit]simplify:  Simplified to (cube 1)
* [exit]simplify:  Simplified to (cube 1)
* [enter]simplify:  Simplifying (cube (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* [exit]simplify:  Simplified to (* (sqrt (sqrt (atan a))) (sqrt (atan a)))
* [exit]simplify:  Simplified to (* (sqrt (sqrt (atan a))) (sqrt (atan a)))
* * * * [misc]progress:  [ 22 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (* (sqrt (sqrt (atan a))) (* (sqrt (sqrt (atan a))) (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (* (sqrt (sqrt (atan a))) (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (6 enodes)
* [exit]simplify:  Simplified to (sqrt (atan a))
* [exit]simplify:  Simplified to (sqrt (atan a))
* * * * [misc]progress:  [ 23 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (sqr (sqrt (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt (cube (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* [exit]simplify:  Simplified to (sqrt (* (sqrt (atan a)) (sqrt (sqrt (atan a)))))
* [exit]simplify:  Simplified to (sqrt (* (sqrt (atan a)) (sqrt (sqrt (atan a)))))
* * * * [misc]progress:  [ 24 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (* 1 (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* * * * [misc]progress:  [ 25 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (pow (atan a) 1/2))))) b) (* c a)))>
* * * * [misc]progress:  [ 26 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (pow (sqrt (atan a)) 1))))) b) (* c a)))>
* * * * [misc]progress:  [ 27 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (exp (log (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (log (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (log (sqrt (atan a)))
* [exit]simplify:  Simplified to (log (sqrt (atan a)))
* * * * [misc]progress:  [ 28 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (log (exp (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (exp (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (exp (sqrt (atan a)))
* [exit]simplify:  Simplified to (exp (sqrt (atan a)))
* * * * [misc]progress:  [ 29 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (cube (cbrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (cbrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (cbrt (sqrt (atan a)))
* * * * [misc]progress:  [ 30 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (cbrt (cube (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cube (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* * [misc]simplify:  iters left: 2 (6 enodes)
* * [misc]simplify:  iters left: 1 (8 enodes)
* [exit]simplify:  Simplified to (* (atan a) (sqrt (atan a)))
* [exit]simplify:  Simplified to (* (atan a) (sqrt (atan a)))
* * * * [misc]progress:  [ 31 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (* (sqrt 1) (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt 1)
* * [misc]simplify:  iters left: 1 (2 enodes)
* [exit]simplify:  Simplified to (sqrt 1)
* [exit]simplify:  Simplified to (sqrt 1)
* [enter]simplify:  Simplifying (sqrt (atan a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (sqrt (atan a))
* [exit]simplify:  Simplified to (sqrt (atan a))
* * * * [misc]progress:  [ 32 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (sqr (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* * * * [misc]progress:  [ 33 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (fabs (sqrt (atan a))))))) b) (* c a)))>
* * * * [misc]progress:  [ 34 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (sqrt (* 1 (sqrt (atan a))))))) b) (* c a)))>
* * * * [misc]progress:  [ 35 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (pow (cube (sqrt (sqrt (atan a)))) 1/3)) b) (* c a)))>
* * * * [misc]progress:  [ 36 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (pow (cbrt (cube (sqrt (sqrt (atan a))))) 1)) b) (* c a)))>
* * * * [misc]progress:  [ 37 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (exp (log (cbrt (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (log (cbrt (cube (sqrt (sqrt (atan a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* [exit]simplify:  Simplified to (log (sqrt (sqrt (atan a))))
* [exit]simplify:  Simplified to (log (sqrt (sqrt (atan a))))
* * * * [misc]progress:  [ 38 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (log (exp (cbrt (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (exp (cbrt (cube (sqrt (sqrt (atan a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* [exit]simplify:  Simplified to (exp (sqrt (sqrt (atan a))))
* [exit]simplify:  Simplified to (exp (sqrt (sqrt (atan a))))
* * * * [misc]progress:  [ 39 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (* (cbrt (cube (sqrt (sqrt 1)))) (cbrt (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (cube (sqrt (sqrt 1))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (14 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt 1))
* [exit]simplify:  Simplified to (sqrt (sqrt 1))
* [enter]simplify:  Simplifying (cbrt (cube (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (13 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* * * * [misc]progress:  [ 40 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (* (cbrt (cube (sqrt 1))) (cbrt (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (cube (sqrt 1)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* * [misc]simplify:  iters left: 2 (8 enodes)
* * [misc]simplify:  iters left: 1 (13 enodes)
* [exit]simplify:  Simplified to (sqrt 1)
* [exit]simplify:  Simplified to (sqrt 1)
* [enter]simplify:  Simplifying (cbrt (cube (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (13 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* * * * [misc]progress:  [ 41 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (* (cbrt (cube 1)) (cbrt (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (cube 1))
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (7 enodes)
* [exit]simplify:  Simplified to 1
* [exit]simplify:  Simplified to 1
* [enter]simplify:  Simplifying (cbrt (cube (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (13 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* * * * [misc]progress:  [ 42 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (* (cbrt (sqrt (sqrt (atan a)))) (cbrt (* (sqrt (sqrt (atan a))) (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* [exit]simplify:  Simplified to (cbrt (sqrt (sqrt (atan a))))
* [exit]simplify:  Simplified to (cbrt (sqrt (sqrt (atan a))))
* [enter]simplify:  Simplifying (cbrt (* (sqrt (sqrt (atan a))) (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (7 enodes)
* [exit]simplify:  Simplified to (cbrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (cbrt (sqrt (atan a)))
* * * * [misc]progress:  [ 43 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (* (cbrt 1) (cbrt (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt 1)
* * [misc]simplify:  iters left: 1 (2 enodes)
* [exit]simplify:  Simplified to (cbrt 1)
* [exit]simplify:  Simplified to (cbrt 1)
* [enter]simplify:  Simplifying (cbrt (cube (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (13 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* * * * [misc]progress:  [ 44 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cube (cbrt (cbrt (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (cbrt (cube (sqrt (sqrt (atan a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* [exit]simplify:  Simplified to (cbrt (sqrt (sqrt (atan a))))
* [exit]simplify:  Simplified to (cbrt (sqrt (sqrt (atan a))))
* * * * [misc]progress:  [ 45 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (cbrt (cube (cbrt (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cube (cbrt (cube (sqrt (sqrt (atan a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (cube (sqrt (sqrt (atan a))))
* [exit]simplify:  Simplified to (cube (sqrt (sqrt (atan a))))
* * * * [misc]progress:  [ 46 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqr (sqrt (cbrt (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt (cbrt (cube (sqrt (sqrt (atan a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (sqrt (atan a))))
* [exit]simplify:  Simplified to (sqrt (sqrt (sqrt (atan a))))
* * * * [misc]progress:  [ 47 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (* 1 (cbrt (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* * * * [misc]progress:  [ 48 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (pow (cbrt (cube (sqrt (sqrt (atan a))))) 2) b) (* c a)))>
* * * * [misc]progress:  [ 49 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (pow (sqr (cbrt (cube (sqrt (sqrt (atan a)))))) 1) b) (* c a)))>
* * * * [misc]progress:  [ 50 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (exp (log (sqr (cbrt (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (log (sqr (cbrt (cube (sqrt (sqrt (atan a)))))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (18 enodes)
* * [misc]simplify:  iters left: 3 (24 enodes)
* * [misc]simplify:  iters left: 2 (25 enodes)
* [exit]simplify:  Simplified to (log (sqrt (atan a)))
* [exit]simplify:  Simplified to (log (sqrt (atan a)))
* * * * [misc]progress:  [ 51 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (log (exp (sqr (cbrt (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (exp (sqr (cbrt (cube (sqrt (sqrt (atan a)))))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* [exit]simplify:  Simplified to (exp (sqrt (atan a)))
* [exit]simplify:  Simplified to (exp (sqrt (atan a)))
* * * * [misc]progress:  [ 52 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (cube (cbrt (sqr (cbrt (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cbrt (sqr (cbrt (cube (sqrt (sqrt (atan a)))))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (15 enodes)
* * [misc]simplify:  iters left: 3 (20 enodes)
* [exit]simplify:  Simplified to (cbrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (cbrt (sqrt (atan a)))
* * * * [misc]progress:  [ 53 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (cbrt (cube (sqr (cbrt (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (cube (sqr (cbrt (cube (sqrt (sqrt (atan a)))))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* * [misc]simplify:  iters left: 4 (25 enodes)
* * [misc]simplify:  iters left: 3 (35 enodes)
* * [misc]simplify:  iters left: 2 (39 enodes)
* * [misc]simplify:  iters left: 1 (44 enodes)
* [exit]simplify:  Simplified to (* (sqrt (atan a)) (atan a))
* [exit]simplify:  Simplified to (* (sqrt (atan a)) (atan a))
* * * * [misc]progress:  [ 54 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (sqr (sqrt (sqr (cbrt (cube (sqrt (sqrt (atan a)))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqrt (sqr (cbrt (cube (sqrt (sqrt (atan a)))))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (16 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* * * * [misc]progress:  [ 55 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* (sqr (cbrt (cube (sqrt (sqrt 1))))) (sqr (cbrt (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqr (cbrt (cube (sqrt (sqrt 1)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (15 enodes)
* * [misc]simplify:  iters left: 2 (20 enodes)
* [exit]simplify:  Simplified to (sqrt 1)
* [exit]simplify:  Simplified to (sqrt 1)
* [enter]simplify:  Simplifying (sqr (cbrt (cube (sqrt (sqrt (atan a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (19 enodes)
* [exit]simplify:  Simplified to (sqrt (atan a))
* [exit]simplify:  Simplified to (sqrt (atan a))
* * * * [misc]progress:  [ 56 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* (sqr (cbrt (cube (sqrt 1)))) (sqr (cbrt (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqr (cbrt (cube (sqrt 1))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (14 enodes)
* [exit]simplify:  Simplified to 1
* [exit]simplify:  Simplified to 1
* [enter]simplify:  Simplifying (sqr (cbrt (cube (sqrt (sqrt (atan a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (19 enodes)
* [exit]simplify:  Simplified to (sqrt (atan a))
* [exit]simplify:  Simplified to (sqrt (atan a))
* * * * [misc]progress:  [ 57 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* (sqr (cbrt (cube 1))) (sqr (cbrt (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqr (cbrt (cube 1)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* [exit]simplify:  Simplified to 1
* [exit]simplify:  Simplified to 1
* [enter]simplify:  Simplifying (sqr (cbrt (cube (sqrt (sqrt (atan a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (19 enodes)
* [exit]simplify:  Simplified to (sqrt (atan a))
* [exit]simplify:  Simplified to (sqrt (atan a))
* * * * [misc]progress:  [ 58 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* (sqr (cbrt (sqrt (sqrt (atan a))))) (sqr (cbrt (* (sqrt (sqrt (atan a))) (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqr (cbrt (sqrt (sqrt (atan a)))))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* [exit]simplify:  Simplified to (* (cbrt (sqrt (sqrt (atan a)))) (cbrt (sqrt (sqrt (atan a)))))
* [exit]simplify:  Simplified to (* (cbrt (sqrt (sqrt (atan a)))) (cbrt (sqrt (sqrt (atan a)))))
* [enter]simplify:  Simplifying (sqr (cbrt (* (sqrt (sqrt (atan a))) (sqrt (sqrt (atan a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* [exit]simplify:  Simplified to (* (cbrt (sqrt (atan a))) (cbrt (sqrt (atan a))))
* [exit]simplify:  Simplified to (* (cbrt (sqrt (atan a))) (cbrt (sqrt (atan a))))
* * * * [misc]progress:  [ 59 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* (sqr (cbrt 1)) (sqr (cbrt (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqr (cbrt 1))
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (6 enodes)
* [exit]simplify:  Simplified to (* (cbrt 1) (cbrt 1))
* [exit]simplify:  Simplified to (* (cbrt 1) (cbrt 1))
* [enter]simplify:  Simplifying (sqr (cbrt (cube (sqrt (sqrt (atan a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (19 enodes)
* [exit]simplify:  Simplified to (sqrt (atan a))
* [exit]simplify:  Simplified to (sqrt (atan a))
* * * * [misc]progress:  [ 60 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* (sqr 1) (sqr (cbrt (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* [enter]simplify:  Simplifying (sqr 1)
* * [misc]simplify:  iters left: 1 (2 enodes)
* [exit]simplify:  Simplified to (sqr 1)
* [exit]simplify:  Simplified to (sqr 1)
* [enter]simplify:  Simplifying (sqr (cbrt (cube (sqrt (sqrt (atan a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (19 enodes)
* [exit]simplify:  Simplified to (sqrt (atan a))
* [exit]simplify:  Simplified to (sqrt (atan a))
* * * * [misc]progress:  [ 61 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* (cbrt (cube (sqrt (sqrt (atan a))))) (cbrt (cube (sqrt (sqrt (atan a)))))) b) (* c a)))>
* * * * [misc]progress:  [ 62 / 62 ] simplifiying candidate #<alt-delta (λ (a b c d) (- (hypot (* 1 (sqr (cbrt (cube (sqrt (sqrt (atan a))))))) b) (* c a)))>
* * * [misc]progress:  adding candidates to table
* [misc]progress:  [Phase 3 of 3] Extracting.
* [enter]simplify:  Simplifying (- (hypot (sqrt (atan a)) b) (* c a))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* [exit]simplify:  Simplified to (- (hypot (sqrt (atan a)) b) (* a c))
* [enter]simplify:  Simplifying (cube (sqrt (sqrt (atan a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* [exit]simplify:  Simplified to (* (sqrt (sqrt (atan a))) (sqrt (atan a)))
* [exit]simplify:  Simplified to (* (sqrt (sqrt (atan a))) (sqrt (atan a)))
* [enter]simplify:  Simplifying (sqrt (sqrt (atan a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (atan a)))