* [misc]progress:  [Phase 1 of 3] Setting up.
* * * [misc]progress:  [1/2] Preparing points
* * * [misc]progress:  [2/2] Setting up program.
* [enter]simplify:  Simplifying (* 500.0 (- x y))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* [exit]simplify:  Simplified to (* 500.0 (- x y))
* [misc]progress:  [Phase 2 of 3] Improving.
* * [misc]progress:  iteration 1 / 3
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-event (λ (x y) (* 500.0 (- x y)))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 1 ] generating series at (2)
* [misc]approximate:  Taking taylor expansion of (* 500.0 (- x y)) in (x y) around 0
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- x y)) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- x y) in y
* [misc]taylor:  Taking taylor expansion of x in y
* [misc]backup-simplify:  Simplify x into x
* [misc]taylor:  Taking taylor expansion of y in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- x y)) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- x y) in x
* [misc]taylor:  Taking taylor expansion of x in x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of y in x
* [misc]backup-simplify:  Simplify y into y
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- x y)) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- x y) in x
* [misc]taylor:  Taking taylor expansion of x in x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of y in x
* [misc]backup-simplify:  Simplify y into y
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (+ 0 (- y)) into (- y)
* [misc]backup-simplify:  Simplify (* 500.0 (- y)) into (* -500.0 y)
* [misc]taylor:  Taking taylor expansion of (* -500.0 y) in y
* [misc]taylor:  Taking taylor expansion of -500.0 in y
* [misc]backup-simplify:  Simplify -500.0 into -500.0
* [misc]taylor:  Taking taylor expansion of y in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* -500.0 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (+ (* 500.0 1) (* 0 (- y))) into 500.0
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]backup-simplify:  Simplify (+ (* -500.0 1) (* 0 0)) into (- 500.0)
* [misc]backup-simplify:  Simplify (- 500.0) into (- 500.0)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 1) (* 0 (- y)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [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 (+ (* -500.0 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 1) (* 0 (- y))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [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 (+ (* (- 500.0) (* y 1)) (* 500.0 (* 1 x))) into (- (* 500.0 x) (* 500.0 y))
* [misc]approximate:  Taking taylor expansion of (* 500.0 (- (/ 1 x) (/ 1 y))) in (x y) around 0
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- (/ 1 x) (/ 1 y))) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
* [misc]taylor:  Taking taylor expansion of (/ 1 x) in y
* [misc]taylor:  Taking taylor expansion of x in y
* [misc]backup-simplify:  Simplify x into x
* [misc]backup-simplify:  Simplify (/ 1 x) into (/ 1 x)
* [misc]taylor:  Taking taylor expansion of (/ 1 y) in y
* [misc]taylor:  Taking taylor expansion of y in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- (/ 1 x) (/ 1 y))) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
* [misc]taylor:  Taking taylor expansion of (/ 1 x) in x
* [misc]taylor:  Taking taylor expansion of x in x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 y) in x
* [misc]taylor:  Taking taylor expansion of y in x
* [misc]backup-simplify:  Simplify y into y
* [misc]backup-simplify:  Simplify (/ 1 y) into (/ 1 y)
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- (/ 1 x) (/ 1 y))) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
* [misc]taylor:  Taking taylor expansion of (/ 1 x) in x
* [misc]taylor:  Taking taylor expansion of x in x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (/ 1 y) in x
* [misc]taylor:  Taking taylor expansion of y in x
* [misc]backup-simplify:  Simplify y into y
* [misc]backup-simplify:  Simplify (/ 1 y) into (/ 1 y)
* [misc]backup-simplify:  Simplify (+ 1 0) into 1
* [misc]backup-simplify:  Simplify (* 500.0 1) into 500.0
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 y)) into (- (/ 1 y))
* [misc]backup-simplify:  Simplify (+ 0 (- (/ 1 y))) into (- (/ 1 y))
* [misc]backup-simplify:  Simplify (+ (* 500.0 (- (/ 1 y))) (* 0 1)) into (- (* 500.0 (/ 1 y)))
* [misc]taylor:  Taking taylor expansion of (- (* 500.0 (/ 1 y))) in y
* [misc]taylor:  Taking taylor expansion of (* 500.0 (/ 1 y)) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (/ 1 y) in y
* [misc]taylor:  Taking taylor expansion of y in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* 500.0 1) into 500.0
* [misc]backup-simplify:  Simplify (- 500.0) into (- 500.0)
* [misc]backup-simplify:  Simplify (- 500.0) into (- 500.0)
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 (- (/ 1 y))) (* 0 1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 (- (/ 1 y))) (* 0 1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- (/ 1 y))) (* 0 1))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 (* 1 (/ 1 (/ 1 x)))) (* (- 500.0) (* (/ 1 (/ 1 y)) 1))) into (- (* 500.0 x) (* 500.0 y))
* [misc]approximate:  Taking taylor expansion of (* 500.0 (- (/ 1 (- x)) (/ 1 (- y)))) in (x y) around 0
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- (/ 1 (- x)) (/ 1 (- y)))) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x)) (/ 1 (- y))) in y
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x)) in y
* [misc]taylor:  Taking taylor expansion of (- x) in y
* [misc]taylor:  Taking taylor expansion of x in y
* [misc]backup-simplify:  Simplify x into x
* [misc]backup-simplify:  Simplify (- x) into (- x)
* [misc]backup-simplify:  Simplify (- x) into (- x)
* [misc]backup-simplify:  Simplify (/ 1 (- x)) into (/ -1 x)
* [misc]taylor:  Taking taylor expansion of (/ 1 (- y)) in y
* [misc]taylor:  Taking taylor expansion of (- y) in y
* [misc]taylor:  Taking taylor expansion of y in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- (/ 1 (- x)) (/ 1 (- y)))) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x)) (/ 1 (- y))) in x
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x)) in x
* [misc]taylor:  Taking taylor expansion of (- x) in x
* [misc]taylor:  Taking taylor expansion of x in x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- y)) in x
* [misc]taylor:  Taking taylor expansion of (- y) in x
* [misc]taylor:  Taking taylor expansion of y in x
* [misc]backup-simplify:  Simplify y into y
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (/ 1 (- y)) into (/ -1 y)
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- (/ 1 (- x)) (/ 1 (- y)))) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- x)) (/ 1 (- y))) in x
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x)) in x
* [misc]taylor:  Taking taylor expansion of (- x) in x
* [misc]taylor:  Taking taylor expansion of x in x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (/ 1 (- y)) in x
* [misc]taylor:  Taking taylor expansion of (- y) in x
* [misc]taylor:  Taking taylor expansion of y in x
* [misc]backup-simplify:  Simplify y into y
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (/ 1 (- y)) into (/ -1 y)
* [misc]backup-simplify:  Simplify (+ -1 0) into -1
* [misc]backup-simplify:  Simplify (* 500.0 -1) into -500.0
* [misc]taylor:  Taking taylor expansion of -500.0 in y
* [misc]backup-simplify:  Simplify -500.0 into -500.0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ -1 y)) into (/ 1 y)
* [misc]backup-simplify:  Simplify (+ 0 (/ 1 y)) into (/ 1 y)
* [misc]backup-simplify:  Simplify (+ (* 500.0 (/ 1 y)) (* 0 -1)) into (* 500.0 (/ 1 y))
* [misc]taylor:  Taking taylor expansion of (* 500.0 (/ 1 y)) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (/ 1 y) in y
* [misc]taylor:  Taking taylor expansion of y in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* 500.0 1) into 500.0
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]backup-simplify:  Simplify -500.0 into -500.0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 y) (/ 0 (- y))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 (/ 1 y)) (* 0 -1))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 y) (/ 0 (- y))) (* 0 (/ 0 (- y))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 -1)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 y) (/ 0 (- y))) (* 0 (/ 0 (- y))) (* 0 (/ 0 (- y))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 -1))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* -500.0 (* 1 (/ 1 (/ 1 (- x))))) (* 500.0 (* (/ 1 (/ 1 (- y))) 1))) into (- (* 500.0 x) (* 500.0 y))
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 1 ] rewriting at (2)
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 16 ] simplifiying candidate #<alt-event (λ (x y) (- (* 500.0 x) (* 500.0 y)))>
* [enter]simplify:  Simplifying (- (* 500.0 x) (* 500.0 y))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* [exit]simplify:  Simplified to (* (- x y) 500.0)
* * * * [misc]progress:  [ 2 / 16 ] simplifiying candidate #<alt-event (λ (x y) (- (* 500.0 x) (* 500.0 y)))>
* [enter]simplify:  Simplifying (- (* 500.0 x) (* 500.0 y))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* [exit]simplify:  Simplified to (* (- x y) 500.0)
* * * * [misc]progress:  [ 3 / 16 ] simplifiying candidate #<alt-event (λ (x y) (- (* 500.0 x) (* 500.0 y)))>
* [enter]simplify:  Simplifying (- (* 500.0 x) (* 500.0 y))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* [exit]simplify:  Simplified to (* (- x y) 500.0)
* * * * [misc]progress:  [ 4 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (pow (* 500.0 (- x y)) 1))>
* * * * [misc]progress:  [ 5 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (exp (log (* 500.0 (- x y)))))>
* [enter]simplify:  Simplifying (log (* 500.0 (- x y)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (11 enodes)
* [exit]simplify:  Simplified to (log (* 500.0 (- x y)))
* [exit]simplify:  Simplified to (log (* 500.0 (- x y)))
* * * * [misc]progress:  [ 6 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (log (exp (* 500.0 (- x y)))))>
* [enter]simplify:  Simplifying (exp (* 500.0 (- x y)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* [exit]simplify:  Simplified to (pow (exp 500.0) (- x y))
* [exit]simplify:  Simplified to (pow (exp 500.0) (- x y))
* * * * [misc]progress:  [ 7 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (cube (cbrt (* 500.0 (- x y)))))>
* [enter]simplify:  Simplifying (cbrt (* 500.0 (- x y)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* [exit]simplify:  Simplified to (cbrt (* 500.0 (- x y)))
* [exit]simplify:  Simplified to (cbrt (* 500.0 (- x y)))
* * * * [misc]progress:  [ 8 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (cbrt (cube (* 500.0 (- x y)))))>
* [enter]simplify:  Simplifying (cube (* 500.0 (- x y)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (12 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* * [misc]simplify:  iters left: 2 (33 enodes)
* * [misc]simplify:  iters left: 1 (57 enodes)
* [exit]simplify:  Simplified to (cube (* 500.0 (- x y)))
* [exit]simplify:  Simplified to (cube (* 500.0 (- x y)))
* * * * [misc]progress:  [ 9 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (sqr (sqrt (* 500.0 (- x y)))))>
* [enter]simplify:  Simplifying (sqrt (* 500.0 (- x y)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* [exit]simplify:  Simplified to (sqrt (* 500.0 (- x y)))
* [exit]simplify:  Simplified to (sqrt (* 500.0 (- x y)))
* * * * [misc]progress:  [ 10 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (* 1 (* 500.0 (- x y))))>
* * * * [misc]progress:  [ 11 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (+ (* 500.0 x) (* 500.0 (- y))))>
* [enter]simplify:  Simplifying (* 500.0 x)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (* x 500.0)
* [exit]simplify:  Simplified to (* x 500.0)
* [enter]simplify:  Simplifying (* 500.0 (- y))
* * [misc]simplify:  iters left: 4 (4 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (10 enodes)
* * [misc]simplify:  iters left: 1 (11 enodes)
* [exit]simplify:  Simplified to (* (- 500.0) y)
* [exit]simplify:  Simplified to (* (- 500.0) y)
* * * * [misc]progress:  [ 12 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (+ (* x 500.0) (* (- y) 500.0)))>
* [enter]simplify:  Simplifying (* x 500.0)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (* 500.0 x)
* [exit]simplify:  Simplified to (* 500.0 x)
* [enter]simplify:  Simplifying (* (- y) 500.0)
* * [misc]simplify:  iters left: 4 (4 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (10 enodes)
* * [misc]simplify:  iters left: 1 (11 enodes)
* [exit]simplify:  Simplified to (* y (- 500.0))
* [exit]simplify:  Simplified to (* y (- 500.0))
* * * * [misc]progress:  [ 13 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (* (* 500.0 1) (- x y)))>
* [enter]simplify:  Simplifying (* 500.0 1)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to 500.0
* [exit]simplify:  Simplified to 500.0
* * * * [misc]progress:  [ 14 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (/ (* 500.0 (- (pow x 3) (pow y 3))) (+ (sqr x) (+ (sqr y) (* x y)))))>
* [enter]simplify:  Simplifying (* 500.0 (- (pow x 3) (pow y 3)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* * [misc]simplify:  iters left: 3 (15 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* [exit]simplify:  Simplified to (* (- (cube x) (cube y)) 500.0)
* [exit]simplify:  Simplified to (* (- (cube x) (cube y)) 500.0)
* * * * [misc]progress:  [ 15 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (/ (* 500.0 (- (sqr x) (sqr y))) (+ x y)))>
* [enter]simplify:  Simplifying (* 500.0 (- (sqr x) (sqr y)))
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (17 enodes)
* * [misc]simplify:  iters left: 2 (37 enodes)
* * [misc]simplify:  iters left: 1 (72 enodes)
* [exit]simplify:  Simplified to (* 500.0 (* (- x y) (+ y x)))
* [exit]simplify:  Simplified to (* 500.0 (* (- x y) (+ y x)))
* * * * [misc]progress:  [ 16 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (* (- x y) 500.0))>
* * * [misc]progress:  adding candidates to table
* * [misc]progress:  iteration 2 / 3
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-delta (λ (x y) (+ (* 500.0 x) (* 500.0 (- y))))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 1 ] generating series at (2)
* [misc]approximate:  Taking taylor expansion of (+ (* 500.0 x) (* 500.0 (- y))) in (x y) around 0
* [misc]taylor:  Taking taylor expansion of (+ (* 500.0 x) (* 500.0 (- y))) in y
* [misc]taylor:  Taking taylor expansion of (* 500.0 x) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of x in y
* [misc]backup-simplify:  Simplify x into x
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- y)) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- y) in y
* [misc]taylor:  Taking taylor expansion of y in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (+ (* 500.0 x) (* 500.0 (- y))) in x
* [misc]taylor:  Taking taylor expansion of (* 500.0 x) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of x in x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- y)) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- y) in x
* [misc]taylor:  Taking taylor expansion of y in x
* [misc]backup-simplify:  Simplify y into y
* [misc]taylor:  Taking taylor expansion of (+ (* 500.0 x) (* 500.0 (- y))) in x
* [misc]taylor:  Taking taylor expansion of (* 500.0 x) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of x in x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- y)) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- y) in x
* [misc]taylor:  Taking taylor expansion of y in x
* [misc]backup-simplify:  Simplify y into y
* [misc]backup-simplify:  Simplify (* 500.0 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (* 500.0 (- y)) into (* -500.0 y)
* [misc]backup-simplify:  Simplify (+ 0 (* -500.0 y)) into (- (* 500.0 y))
* [misc]taylor:  Taking taylor expansion of (- (* 500.0 y)) in y
* [misc]taylor:  Taking taylor expansion of (* 500.0 y) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of y in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (* 500.0 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 1) (* 0 0)) into 500.0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (* 0 (- y))) into 0
* [misc]backup-simplify:  Simplify (+ 500.0 0) into 500.0
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]backup-simplify:  Simplify (+ (* 500.0 1) (* 0 0)) into 500.0
* [misc]backup-simplify:  Simplify (- 500.0) into (- 500.0)
* [misc]backup-simplify:  Simplify (- 500.0) into (- 500.0)
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (* 0 (- y)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [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 (+ (* 500.0 0) (+ (* 0 1) (* 0 0))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 1) (* 0 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 (- y) into (- y)
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (- y))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [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 (+ (* (- 500.0) (* y 1)) (* 500.0 (* 1 x))) into (- (* 500.0 x) (* 500.0 y))
* [misc]approximate:  Taking taylor expansion of (+ (* 500.0 (/ 1 x)) (* 500.0 (- (/ 1 y)))) in (x y) around 0
* [misc]taylor:  Taking taylor expansion of (+ (* 500.0 (/ 1 x)) (* 500.0 (- (/ 1 y)))) in y
* [misc]taylor:  Taking taylor expansion of (* 500.0 (/ 1 x)) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x) in y
* [misc]taylor:  Taking taylor expansion of x in y
* [misc]backup-simplify:  Simplify x into x
* [misc]backup-simplify:  Simplify (/ 1 x) into (/ 1 x)
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- (/ 1 y))) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- (/ 1 y)) in y
* [misc]taylor:  Taking taylor expansion of (/ 1 y) in y
* [misc]taylor:  Taking taylor expansion of y in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (+ (* 500.0 (/ 1 x)) (* 500.0 (- (/ 1 y)))) in x
* [misc]taylor:  Taking taylor expansion of (* 500.0 (/ 1 x)) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x) in x
* [misc]taylor:  Taking taylor expansion of x in x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- (/ 1 y))) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- (/ 1 y)) in x
* [misc]taylor:  Taking taylor expansion of (/ 1 y) in x
* [misc]taylor:  Taking taylor expansion of y in x
* [misc]backup-simplify:  Simplify y into y
* [misc]backup-simplify:  Simplify (/ 1 y) into (/ 1 y)
* [misc]taylor:  Taking taylor expansion of (+ (* 500.0 (/ 1 x)) (* 500.0 (- (/ 1 y)))) in x
* [misc]taylor:  Taking taylor expansion of (* 500.0 (/ 1 x)) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (/ 1 x) in x
* [misc]taylor:  Taking taylor expansion of x in x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- (/ 1 y))) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- (/ 1 y)) in x
* [misc]taylor:  Taking taylor expansion of (/ 1 y) in x
* [misc]taylor:  Taking taylor expansion of y in x
* [misc]backup-simplify:  Simplify y into y
* [misc]backup-simplify:  Simplify (/ 1 y) into (/ 1 y)
* [misc]backup-simplify:  Simplify (* 500.0 1) into 500.0
* [misc]backup-simplify:  Simplify (+ 500.0 0) into 500.0
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 y)) into (- (/ 1 y))
* [misc]backup-simplify:  Simplify (* 500.0 (- (/ 1 y))) into (/ -500.0 y)
* [misc]backup-simplify:  Simplify (+ 0 (/ -500.0 y)) into (- (* 500.0 (/ 1 y)))
* [misc]taylor:  Taking taylor expansion of (- (* 500.0 (/ 1 y))) in y
* [misc]taylor:  Taking taylor expansion of (* 500.0 (/ 1 y)) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (/ 1 y) in y
* [misc]taylor:  Taking taylor expansion of y in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* 500.0 1) into 500.0
* [misc]backup-simplify:  Simplify (- 500.0) into (- 500.0)
* [misc]backup-simplify:  Simplify (- 500.0) into (- 500.0)
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 y)) into (- (/ 1 y))
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (* 0 (- (/ 1 y)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 y)) into (- (/ 1 y))
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (* 0 (- (/ 1 y))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (/ 1 y)) into (- (/ 1 y))
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (- (/ 1 y)))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 (* 1 (/ 1 (/ 1 x)))) (* (- 500.0) (* (/ 1 (/ 1 y)) 1))) into (- (* 500.0 x) (* 500.0 y))
* [misc]approximate:  Taking taylor expansion of (+ (* 500.0 (/ 1 (- x))) (* 500.0 (- (/ 1 (- y))))) in (x y) around 0
* [misc]taylor:  Taking taylor expansion of (+ (* 500.0 (/ 1 (- x))) (* 500.0 (- (/ 1 (- y))))) in y
* [misc]taylor:  Taking taylor expansion of (* 500.0 (/ 1 (- x))) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x)) in y
* [misc]taylor:  Taking taylor expansion of (- x) in y
* [misc]taylor:  Taking taylor expansion of x in y
* [misc]backup-simplify:  Simplify x into x
* [misc]backup-simplify:  Simplify (- x) into (- x)
* [misc]backup-simplify:  Simplify (- x) into (- x)
* [misc]backup-simplify:  Simplify (/ 1 (- x)) into (/ -1 x)
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- (/ 1 (- y)))) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- y))) in y
* [misc]taylor:  Taking taylor expansion of (/ 1 (- y)) in y
* [misc]taylor:  Taking taylor expansion of (- y) in y
* [misc]taylor:  Taking taylor expansion of y in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (+ (* 500.0 (/ 1 (- x))) (* 500.0 (- (/ 1 (- y))))) in x
* [misc]taylor:  Taking taylor expansion of (* 500.0 (/ 1 (- x))) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x)) in x
* [misc]taylor:  Taking taylor expansion of (- x) in x
* [misc]taylor:  Taking taylor expansion of x in x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- (/ 1 (- y)))) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- y))) in x
* [misc]taylor:  Taking taylor expansion of (/ 1 (- y)) in x
* [misc]taylor:  Taking taylor expansion of (- y) in x
* [misc]taylor:  Taking taylor expansion of y in x
* [misc]backup-simplify:  Simplify y into y
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (/ 1 (- y)) into (/ -1 y)
* [misc]taylor:  Taking taylor expansion of (+ (* 500.0 (/ 1 (- x))) (* 500.0 (- (/ 1 (- y))))) in x
* [misc]taylor:  Taking taylor expansion of (* 500.0 (/ 1 (- x))) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (/ 1 (- x)) in x
* [misc]taylor:  Taking taylor expansion of (- x) in x
* [misc]taylor:  Taking taylor expansion of x in x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (* 500.0 (- (/ 1 (- y)))) in x
* [misc]taylor:  Taking taylor expansion of 500.0 in x
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (- (/ 1 (- y))) in x
* [misc]taylor:  Taking taylor expansion of (/ 1 (- y)) in x
* [misc]taylor:  Taking taylor expansion of (- y) in x
* [misc]taylor:  Taking taylor expansion of y in x
* [misc]backup-simplify:  Simplify y into y
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (/ 1 (- y)) into (/ -1 y)
* [misc]backup-simplify:  Simplify (* 500.0 -1) into -500.0
* [misc]backup-simplify:  Simplify (+ -500.0 0) into (- 500.0)
* [misc]taylor:  Taking taylor expansion of (- 500.0) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (* 0 -1)) into 0
* [misc]backup-simplify:  Simplify (- (/ -1 y)) into (/ 1 y)
* [misc]backup-simplify:  Simplify (* 500.0 (/ 1 y)) into (/ 500.0 y)
* [misc]backup-simplify:  Simplify (+ 0 (/ 500.0 y)) into (* 500.0 (/ 1 y))
* [misc]taylor:  Taking taylor expansion of (* 500.0 (/ 1 y)) in y
* [misc]taylor:  Taking taylor expansion of 500.0 in y
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]taylor:  Taking taylor expansion of (/ 1 y) in y
* [misc]taylor:  Taking taylor expansion of y in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]backup-simplify:  Simplify (* 500.0 1) into 500.0
* [misc]backup-simplify:  Simplify 500.0 into 500.0
* [misc]backup-simplify:  Simplify (- 500.0) into (- 500.0)
* [misc]backup-simplify:  Simplify (- 500.0) into (- 500.0)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (* 0 -1))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 y) (/ 0 (- y))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (/ -1 y)) into (/ 1 y)
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (* 0 (/ 1 y))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (* 0 1)) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 y) (/ 0 (- y))) (* 0 (/ 0 (- y))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (/ -1 y)) into (/ 1 y)
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (* 0 1))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 -1))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- y) into (- y)
* [misc]backup-simplify:  Simplify (- (+ (* (/ -1 y) (/ 0 (- y))) (* 0 (/ 0 (- y))) (* 0 (/ 0 (- y))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (/ -1 y)) into (/ 1 y)
* [misc]backup-simplify:  Simplify (+ (* 500.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0
* [misc]backup-simplify:  Simplify (+ 0 0) into 0
* [misc]taylor:  Taking taylor expansion of 0 in y
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (- 500.0) (* 1 (/ 1 (/ 1 (- x))))) (* 500.0 (* (/ 1 (/ 1 (- y))) 1))) into (- (* 500.0 x) (* 500.0 y))
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 1 ] rewriting at (2)
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 16 ] simplifiying candidate #<alt-event (λ (x y) (- (* 500.0 x) (* 500.0 y)))>
* [enter]simplify:  Simplifying (- (* 500.0 x) (* 500.0 y))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* [exit]simplify:  Simplified to (* (- x y) 500.0)
* * * * [misc]progress:  [ 2 / 16 ] simplifiying candidate #<alt-event (λ (x y) (- (* 500.0 x) (* 500.0 y)))>
* [enter]simplify:  Simplifying (- (* 500.0 x) (* 500.0 y))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* [exit]simplify:  Simplified to (* (- x y) 500.0)
* * * * [misc]progress:  [ 3 / 16 ] simplifiying candidate #<alt-event (λ (x y) (- (* 500.0 x) (* 500.0 y)))>
* [enter]simplify:  Simplifying (- (* 500.0 x) (* 500.0 y))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* [exit]simplify:  Simplified to (* (- x y) 500.0)
* * * * [misc]progress:  [ 4 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (log (* (exp (* 500.0 x)) (exp (* 500.0 (- y))))))>
* [enter]simplify:  Simplifying (* (exp (* 500.0 x)) (exp (* 500.0 (- y))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (29 enodes)
* * [misc]simplify:  iters left: 3 (47 enodes)
* * [misc]simplify:  iters left: 2 (51 enodes)
* * [misc]simplify:  iters left: 1 (59 enodes)
* [exit]simplify:  Simplified to (exp (* 500.0 (- x y)))
* [exit]simplify:  Simplified to (exp (* 500.0 (- x y)))
* * * * [misc]progress:  [ 5 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (pow (+ (* 500.0 x) (* 500.0 (- y))) 1))>
* * * * [misc]progress:  [ 6 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (exp (log (+ (* 500.0 x) (* 500.0 (- y))))))>
* [enter]simplify:  Simplifying (log (+ (* 500.0 x) (* 500.0 (- y))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (24 enodes)
* * [misc]simplify:  iters left: 3 (26 enodes)
* [exit]simplify:  Simplified to (log (* (+ x (- y)) 500.0))
* [exit]simplify:  Simplified to (log (* (+ x (- y)) 500.0))
* * * * [misc]progress:  [ 7 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (log (exp (+ (* 500.0 x) (* 500.0 (- y))))))>
* [enter]simplify:  Simplifying (exp (+ (* 500.0 x) (* 500.0 (- y))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (36 enodes)
* * [misc]simplify:  iters left: 3 (51 enodes)
* * [misc]simplify:  iters left: 2 (54 enodes)
* * [misc]simplify:  iters left: 1 (65 enodes)
* [exit]simplify:  Simplified to (exp (* 500.0 (- x y)))
* [exit]simplify:  Simplified to (exp (* 500.0 (- x y)))
* * * * [misc]progress:  [ 8 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (cube (cbrt (+ (* 500.0 x) (* 500.0 (- y))))))>
* [enter]simplify:  Simplifying (cbrt (+ (* 500.0 x) (* 500.0 (- y))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (21 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* [exit]simplify:  Simplified to (cbrt (* (+ x (- y)) 500.0))
* [exit]simplify:  Simplified to (cbrt (* (+ x (- y)) 500.0))
* * * * [misc]progress:  [ 9 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (cbrt (cube (+ (* 500.0 x) (* 500.0 (- y))))))>
* [enter]simplify:  Simplifying (cube (+ (* 500.0 x) (* 500.0 (- y))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (36 enodes)
* * [misc]simplify:  iters left: 3 (106 enodes)
* * [misc]simplify:  iters left: 2 (355 enodes)
* [exit]simplify:  Simplified to (cube (* (+ x (- y)) 500.0))
* [exit]simplify:  Simplified to (cube (* (+ x (- y)) 500.0))
* * * * [misc]progress:  [ 10 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (sqr (sqrt (+ (* 500.0 x) (* 500.0 (- y))))))>
* [enter]simplify:  Simplifying (sqrt (+ (* 500.0 x) (* 500.0 (- y))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (21 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* [exit]simplify:  Simplified to (sqrt (* (+ x (- y)) 500.0))
* [exit]simplify:  Simplified to (sqrt (* (+ x (- y)) 500.0))
* * * * [misc]progress:  [ 11 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (/ (+ (pow (* 500.0 x) 3) (pow (* 500.0 (- y)) 3)) (+ (sqr (* 500.0 x)) (- (sqr (* 500.0 (- y))) (* (* 500.0 x) (* 500.0 (- y)))))))>
* [enter]simplify:  Simplifying (+ (pow (* 500.0 x) 3) (pow (* 500.0 (- y)) 3))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (33 enodes)
* * [misc]simplify:  iters left: 3 (69 enodes)
* * [misc]simplify:  iters left: 2 (132 enodes)
* * [misc]simplify:  iters left: 1 (200 enodes)
* [exit]simplify:  Simplified to (+ (- (cube (* 500.0 y))) (cube (* x 500.0)))
* [exit]simplify:  Simplified to (+ (- (cube (* 500.0 y))) (cube (* x 500.0)))
* [enter]simplify:  Simplifying (+ (sqr (* 500.0 x)) (- (sqr (* 500.0 (- y))) (* (* 500.0 x) (* 500.0 (- y)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (56 enodes)
* * [misc]simplify:  iters left: 3 (95 enodes)
* * [misc]simplify:  iters left: 2 (167 enodes)
* * [misc]simplify:  iters left: 1 (238 enodes)
* [exit]simplify:  Simplified to (* (sqr 500.0) (- (+ (* y y) (sqr x)) (* (- x) y)))
* [exit]simplify:  Simplified to (* (sqr 500.0) (- (+ (* y y) (sqr x)) (* (- x) y)))
* * * * [misc]progress:  [ 12 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (- (* 500.0 x) (* 500.0 y)))>
* * * * [misc]progress:  [ 13 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (* 1 (+ (* 500.0 x) (* 500.0 (- y)))))>
* * * * [misc]progress:  [ 14 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (/ (- (sqr (* 500.0 x)) (sqr (* 500.0 (- y)))) (- (* 500.0 x) (* 500.0 (- y)))))>
* [enter]simplify:  Simplifying (- (sqr (* 500.0 x)) (sqr (* 500.0 (- y))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (44 enodes)
* * [misc]simplify:  iters left: 3 (76 enodes)
* * [misc]simplify:  iters left: 2 (103 enodes)
* * [misc]simplify:  iters left: 1 (132 enodes)
* [exit]simplify:  Simplified to (* (* (- x y) (+ x y)) (sqr 500.0))
* [exit]simplify:  Simplified to (* (* (- x y) (+ x y)) (sqr 500.0))
* [enter]simplify:  Simplifying (- (* 500.0 x) (* 500.0 (- y)))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* [exit]simplify:  Simplified to (* 500.0 (- x (- y)))
* [exit]simplify:  Simplified to (* 500.0 (- x (- y)))
* * * * [misc]progress:  [ 15 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (* 500.0 (+ x (- y))))>
* [enter]simplify:  Simplifying (+ x (- y))
* * [misc]simplify:  iters left: 4 (4 enodes)
* * [misc]simplify:  iters left: 3 (5 enodes)
* [exit]simplify:  Simplified to (+ (- y) x)
* [exit]simplify:  Simplified to (+ (- y) x)
* * * * [misc]progress:  [ 16 / 16 ] simplifiying candidate #<alt-delta (λ (x y) (+ (* 500.0 (- y)) (* 500.0 x)))>
* * * [misc]progress:  adding candidates to table
* [misc]progress:  [Phase 3 of 3] Extracting.
* * [misc]regime-changes:  Finding splitpoints for: (#<alt-event (λ (x y) (* 500.0 (- x y)))> #<alt-delta (λ (x y) (+ (* 500.0 x) (* 500.0 (- y))))>)
* [misc]regimes:  Found splitpoints: (#s(sp 0 (- x y) +inf.0)) , with alts (#<alt-event (λ (x y) (* 500.0 (- x y)))>)
* [enter]simplify:  Simplifying (* 500.0 (- x y))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* [exit]simplify:  Simplified to (* 500.0 (- x y))
* [enter]simplify:  Simplifying (* 500.0 x)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (* x 500.0)
* [exit]simplify:  Simplified to (* x 500.0)
* [enter]simplify:  Simplifying (* 500.0 (- y))
* * [misc]simplify:  iters left: 4 (4 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (10 enodes)
* * [misc]simplify:  iters left: 1 (11 enodes)
* [exit]simplify:  Simplified to (* (- 500.0) y)
* [exit]simplify:  Simplified to (* (- 500.0) y)