18.175 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.010 * * * [progress]: [2/2] Setting up program.
0.011 * [progress]: [Phase 2 of 3] Improving.
0.011 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 500.0 (- x y))
0.013 * * [simplify]: iteration  0 :  8  enodes  (cost  2 )
0.015 * * [simplify]: iteration  1 :  15  enodes  (cost  2 )
0.016 * * [simplify]: iteration  2 :  21  enodes  (cost  2 )
0.017 * * [simplify]: iteration  3 :  26  enodes  (cost  2 )
0.018 * * [simplify]: iteration  4 :  26  enodes  (cost  2 )
0.018 * [simplify]: Simplified to:
   (* 500.0 (- x y))
0.018 * * [progress]: iteration 1 / 4
0.018 * * * [progress]: picking best candidate
0.020 * * * * [pick]: Picked  #<alt (λ (x y) (* 500.0 (- x y)))>
0.020 * * * [progress]: localizing error
0.023 * * * [progress]: generating rewritten candidates
0.023 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.030 * * * [progress]: generating series expansions
0.030 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.030 * [approximate]: Taking taylor expansion of (* 500.0 (- x y)) in (x y) around 0
0.030 * [taylor]: Taking taylor expansion of (* 500.0 (- x y)) in y
0.030 * [taylor]: Taking taylor expansion of 500.0 in y
0.030 * [taylor]: Taking taylor expansion of (- x y) in y
0.030 * [taylor]: Taking taylor expansion of x in y
0.030 * [taylor]: Taking taylor expansion of y in y
0.030 * [taylor]: Taking taylor expansion of (* 500.0 (- x y)) in x
0.030 * [taylor]: Taking taylor expansion of 500.0 in x
0.030 * [taylor]: Taking taylor expansion of (- x y) in x
0.030 * [taylor]: Taking taylor expansion of x in x
0.030 * [taylor]: Taking taylor expansion of y in x
0.030 * [taylor]: Taking taylor expansion of (* 500.0 (- x y)) in x
0.030 * [taylor]: Taking taylor expansion of 500.0 in x
0.030 * [taylor]: Taking taylor expansion of (- x y) in x
0.030 * [taylor]: Taking taylor expansion of x in x
0.030 * [taylor]: Taking taylor expansion of y in x
0.030 * [taylor]: Taking taylor expansion of (* -500.0 y) in y
0.030 * [taylor]: Taking taylor expansion of -500.0 in y
0.030 * [taylor]: Taking taylor expansion of y in y
0.031 * [taylor]: Taking taylor expansion of 500.0 in y
0.034 * [taylor]: Taking taylor expansion of 0 in y
0.035 * [taylor]: Taking taylor expansion of 0 in y
0.036 * [approximate]: Taking taylor expansion of (* 500.0 (- (/ 1 x) (/ 1 y))) in (x y) around 0
0.036 * [taylor]: Taking taylor expansion of (* 500.0 (- (/ 1 x) (/ 1 y))) in y
0.036 * [taylor]: Taking taylor expansion of 500.0 in y
0.036 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.036 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.036 * [taylor]: Taking taylor expansion of x in y
0.036 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.036 * [taylor]: Taking taylor expansion of y in y
0.036 * [taylor]: Taking taylor expansion of (* 500.0 (- (/ 1 x) (/ 1 y))) in x
0.036 * [taylor]: Taking taylor expansion of 500.0 in x
0.036 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.036 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.036 * [taylor]: Taking taylor expansion of x in x
0.036 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.037 * [taylor]: Taking taylor expansion of y in x
0.037 * [taylor]: Taking taylor expansion of (* 500.0 (- (/ 1 x) (/ 1 y))) in x
0.037 * [taylor]: Taking taylor expansion of 500.0 in x
0.037 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.037 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.037 * [taylor]: Taking taylor expansion of x in x
0.037 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.037 * [taylor]: Taking taylor expansion of y in x
0.037 * [taylor]: Taking taylor expansion of 500.0 in y
0.038 * [taylor]: Taking taylor expansion of (neg (* 500.0 (/ 1 y))) in y
0.038 * [taylor]: Taking taylor expansion of (* 500.0 (/ 1 y)) in y
0.038 * [taylor]: Taking taylor expansion of 500.0 in y
0.038 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.038 * [taylor]: Taking taylor expansion of y in y
0.041 * [taylor]: Taking taylor expansion of 0 in y
0.044 * [taylor]: Taking taylor expansion of 0 in y
0.047 * [taylor]: Taking taylor expansion of 0 in y
0.047 * [approximate]: Taking taylor expansion of (* 500.0 (- (/ 1 y) (/ 1 x))) in (x y) around 0
0.047 * [taylor]: Taking taylor expansion of (* 500.0 (- (/ 1 y) (/ 1 x))) in y
0.047 * [taylor]: Taking taylor expansion of 500.0 in y
0.048 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.048 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.048 * [taylor]: Taking taylor expansion of y in y
0.048 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.048 * [taylor]: Taking taylor expansion of x in y
0.048 * [taylor]: Taking taylor expansion of (* 500.0 (- (/ 1 y) (/ 1 x))) in x
0.048 * [taylor]: Taking taylor expansion of 500.0 in x
0.048 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.048 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.048 * [taylor]: Taking taylor expansion of y in x
0.048 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.048 * [taylor]: Taking taylor expansion of x in x
0.048 * [taylor]: Taking taylor expansion of (* 500.0 (- (/ 1 y) (/ 1 x))) in x
0.048 * [taylor]: Taking taylor expansion of 500.0 in x
0.048 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.048 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.048 * [taylor]: Taking taylor expansion of y in x
0.048 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.048 * [taylor]: Taking taylor expansion of x in x
0.049 * [taylor]: Taking taylor expansion of -500.0 in y
0.050 * [taylor]: Taking taylor expansion of (* 500.0 (/ 1 y)) in y
0.050 * [taylor]: Taking taylor expansion of 500.0 in y
0.050 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.050 * [taylor]: Taking taylor expansion of y in y
0.052 * [taylor]: Taking taylor expansion of 0 in y
0.055 * [taylor]: Taking taylor expansion of 0 in y
0.058 * [taylor]: Taking taylor expansion of 0 in y
0.058 * * * [progress]: simplifying candidates
0.059 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 500.0 (- x y))
  (+ (log 500.0) (log (- x y)))
  (log (* 500.0 (- x y)))
  (exp (* 500.0 (- x y)))
  (* (* (* 500.0 500.0) 500.0) (* (* (- x y) (- x y)) (- x y)))
  (* (cbrt (* 500.0 (- x y))) (cbrt (* 500.0 (- x y))))
  (cbrt (* 500.0 (- x y)))
  (* (* (* 500.0 (- x y)) (* 500.0 (- x y))) (* 500.0 (- x y)))
  (sqrt (* 500.0 (- x y)))
  (sqrt (* 500.0 (- x y)))
  (* (sqrt 500.0) (sqrt (- x y)))
  (* (sqrt 500.0) (sqrt (- x y)))
  (* 500.0 x)
  (* 500.0 (neg y))
  (* 500.0 x)
  (* 500.0 (neg y))
  (* x 500.0)
  (* (neg y) 500.0)
  (* x 500.0)
  (* (neg y) 500.0)
  (* 500.0 (* (cbrt (- x y)) (cbrt (- x y))))
  (* 500.0 (sqrt (- x y)))
  (* 500.0 1)
  (* 500.0 (+ (sqrt x) (sqrt y)))
  (* 500.0 1)
  (* (cbrt 500.0) (- x y))
  (* (sqrt 500.0) (- x y))
  (* 500.0 (- x y))
  (* 500.0 (- (pow x 3) (pow y 3)))
  (* 500.0 (- (* x x) (* y y)))
  (- (* 500.0 x) (* 500.0 y))
  (- (* 500.0 x) (* 500.0 y))
  (- (* 500.0 x) (* 500.0 y))
0.062 * * [simplify]: iteration  0 :  112  enodes  (cost  98 )
0.064 * * [simplify]: iteration  1 :  460  enodes  (cost  88 )
0.073 * * [simplify]: iteration  2 :  1881  enodes  (cost  88 )
0.101 * * [simplify]: iteration  3 :  5001  enodes  (cost  88 )
0.102 * [simplify]: Simplified to:
   (* 500.0 (- x y))
  (log (* 500.0 (- x y)))
  (log (* 500.0 (- x y)))
  (exp (* 500.0 (- x y)))
  (pow (* 500.0 (- x y)) 3)
  (* (cbrt (* 500.0 (- x y))) (cbrt (* 500.0 (- x y))))
  (cbrt (* 500.0 (- x y)))
  (pow (* 500.0 (- x y)) 3)
  (sqrt (* 500.0 (- x y)))
  (sqrt (* 500.0 (- x y)))
  (* (sqrt 500.0) (sqrt (- x y)))
  (* (sqrt 500.0) (sqrt (- x y)))
  (* 500.0 x)
  (* 500.0 (neg y))
  (* 500.0 x)
  (* 500.0 (neg y))
  (* 500.0 x)
  (* 500.0 (neg y))
  (* 500.0 x)
  (* 500.0 (neg y))
  (* 500.0 (* (cbrt (- x y)) (cbrt (- x y))))
  (* 500.0 (sqrt (- x y)))
  500.0
  (* 500.0 (+ (sqrt x) (sqrt y)))
  500.0
  (* (cbrt 500.0) (- x y))
  (* (sqrt 500.0) (- x y))
  (* 500.0 (- x y))
  (* 500.0 (- (pow x 3) (pow y 3)))
  (* 500.0 (- (* x x) (* y y)))
  (* 500.0 (- x y))
  (* 500.0 (- x y))
  (* 500.0 (- x y))
0.102 * * * [progress]: adding candidates to table
0.135 * * [progress]: iteration 2 / 4
0.135 * * * [progress]: picking best candidate
0.136 * * * * [pick]: Picked  #<alt (λ (x y) (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))>
0.136 * * * [progress]: localizing error
0.144 * * * [progress]: generating rewritten candidates
0.144 * * * * [progress]: [ 1 / 3 ] rewriting at (2)
0.153 * * * * [progress]: [ 2 / 3 ] rewriting at (2 1 2)
0.156 * * * * [progress]: [ 3 / 3 ] rewriting at (2 1)
0.163 * * * [progress]: generating series expansions
0.163 * * * * [progress]: [ 1 / 3 ] generating series at (2)
0.163 * [approximate]: Taking taylor expansion of (* 500.0 (/ (- (pow x 2) (pow y 2)) (+ x y))) in (x y) around 0
0.163 * [taylor]: Taking taylor expansion of (* 500.0 (/ (- (pow x 2) (pow y 2)) (+ x y))) in y
0.163 * [taylor]: Taking taylor expansion of 500.0 in y
0.163 * [taylor]: Taking taylor expansion of (/ (- (pow x 2) (pow y 2)) (+ x y)) in y
0.163 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
0.163 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.163 * [taylor]: Taking taylor expansion of x in y
0.163 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.163 * [taylor]: Taking taylor expansion of y in y
0.163 * [taylor]: Taking taylor expansion of (+ x y) in y
0.164 * [taylor]: Taking taylor expansion of x in y
0.164 * [taylor]: Taking taylor expansion of y in y
0.164 * [taylor]: Taking taylor expansion of (* 500.0 (/ (- (pow x 2) (pow y 2)) (+ x y))) in x
0.164 * [taylor]: Taking taylor expansion of 500.0 in x
0.164 * [taylor]: Taking taylor expansion of (/ (- (pow x 2) (pow y 2)) (+ x y)) in x
0.164 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.164 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.164 * [taylor]: Taking taylor expansion of x in x
0.164 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.164 * [taylor]: Taking taylor expansion of y in x
0.164 * [taylor]: Taking taylor expansion of (+ x y) in x
0.164 * [taylor]: Taking taylor expansion of x in x
0.164 * [taylor]: Taking taylor expansion of y in x
0.164 * [taylor]: Taking taylor expansion of (* 500.0 (/ (- (pow x 2) (pow y 2)) (+ x y))) in x
0.164 * [taylor]: Taking taylor expansion of 500.0 in x
0.164 * [taylor]: Taking taylor expansion of (/ (- (pow x 2) (pow y 2)) (+ x y)) in x
0.164 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.164 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.164 * [taylor]: Taking taylor expansion of x in x
0.164 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.164 * [taylor]: Taking taylor expansion of y in x
0.164 * [taylor]: Taking taylor expansion of (+ x y) in x
0.164 * [taylor]: Taking taylor expansion of x in x
0.164 * [taylor]: Taking taylor expansion of y in x
0.165 * [taylor]: Taking taylor expansion of (* -500.0 y) in y
0.165 * [taylor]: Taking taylor expansion of -500.0 in y
0.165 * [taylor]: Taking taylor expansion of y in y
0.166 * [taylor]: Taking taylor expansion of 500.0 in y
0.169 * [taylor]: Taking taylor expansion of 0 in y
0.172 * [taylor]: Taking taylor expansion of 0 in y
0.173 * [approximate]: Taking taylor expansion of (* 500.0 (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in (x y) around 0
0.173 * [taylor]: Taking taylor expansion of (* 500.0 (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in y
0.173 * [taylor]: Taking taylor expansion of 500.0 in y
0.173 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in y
0.173 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.173 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.173 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.173 * [taylor]: Taking taylor expansion of x in y
0.173 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.173 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.173 * [taylor]: Taking taylor expansion of y in y
0.173 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.173 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.174 * [taylor]: Taking taylor expansion of y in y
0.174 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.174 * [taylor]: Taking taylor expansion of x in y
0.175 * [taylor]: Taking taylor expansion of (* 500.0 (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in x
0.175 * [taylor]: Taking taylor expansion of 500.0 in x
0.175 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in x
0.175 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.175 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.175 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.175 * [taylor]: Taking taylor expansion of x in x
0.175 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.175 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.175 * [taylor]: Taking taylor expansion of y in x
0.176 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.176 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.176 * [taylor]: Taking taylor expansion of y in x
0.176 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.176 * [taylor]: Taking taylor expansion of x in x
0.177 * [taylor]: Taking taylor expansion of (* 500.0 (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in x
0.177 * [taylor]: Taking taylor expansion of 500.0 in x
0.177 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in x
0.177 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.177 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.177 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.177 * [taylor]: Taking taylor expansion of x in x
0.177 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.177 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.177 * [taylor]: Taking taylor expansion of y in x
0.177 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.177 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.177 * [taylor]: Taking taylor expansion of y in x
0.177 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.177 * [taylor]: Taking taylor expansion of x in x
0.179 * [taylor]: Taking taylor expansion of 500.0 in y
0.181 * [taylor]: Taking taylor expansion of (neg (* 500.0 (/ 1 y))) in y
0.181 * [taylor]: Taking taylor expansion of (* 500.0 (/ 1 y)) in y
0.181 * [taylor]: Taking taylor expansion of 500.0 in y
0.181 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.181 * [taylor]: Taking taylor expansion of y in y
0.185 * [taylor]: Taking taylor expansion of 0 in y
0.190 * [taylor]: Taking taylor expansion of 0 in y
0.200 * [taylor]: Taking taylor expansion of 0 in y
0.201 * [approximate]: Taking taylor expansion of (* -500.0 (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in (x y) around 0
0.201 * [taylor]: Taking taylor expansion of (* -500.0 (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in y
0.201 * [taylor]: Taking taylor expansion of -500.0 in y
0.201 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in y
0.201 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.201 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.201 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.201 * [taylor]: Taking taylor expansion of x in y
0.201 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.201 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.201 * [taylor]: Taking taylor expansion of y in y
0.202 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.202 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.202 * [taylor]: Taking taylor expansion of y in y
0.202 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.202 * [taylor]: Taking taylor expansion of x in y
0.203 * [taylor]: Taking taylor expansion of (* -500.0 (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in x
0.203 * [taylor]: Taking taylor expansion of -500.0 in x
0.203 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in x
0.203 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.203 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.203 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.203 * [taylor]: Taking taylor expansion of x in x
0.204 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.204 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.204 * [taylor]: Taking taylor expansion of y in x
0.204 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.204 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.204 * [taylor]: Taking taylor expansion of y in x
0.204 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.204 * [taylor]: Taking taylor expansion of x in x
0.205 * [taylor]: Taking taylor expansion of (* -500.0 (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in x
0.205 * [taylor]: Taking taylor expansion of -500.0 in x
0.205 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in x
0.205 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.205 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.205 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.205 * [taylor]: Taking taylor expansion of x in x
0.205 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.206 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.206 * [taylor]: Taking taylor expansion of y in x
0.206 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.206 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.206 * [taylor]: Taking taylor expansion of y in x
0.206 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.206 * [taylor]: Taking taylor expansion of x in x
0.207 * [taylor]: Taking taylor expansion of -500.0 in y
0.209 * [taylor]: Taking taylor expansion of (* 500.0 (/ 1 y)) in y
0.209 * [taylor]: Taking taylor expansion of 500.0 in y
0.209 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.209 * [taylor]: Taking taylor expansion of y in y
0.213 * [taylor]: Taking taylor expansion of 0 in y
0.218 * [taylor]: Taking taylor expansion of 0 in y
0.224 * [taylor]: Taking taylor expansion of 0 in y
0.224 * * * * [progress]: [ 2 / 3 ] generating series at (2 1 2)
0.224 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
0.224 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
0.224 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.224 * [taylor]: Taking taylor expansion of x in y
0.224 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.224 * [taylor]: Taking taylor expansion of y in y
0.224 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.224 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.224 * [taylor]: Taking taylor expansion of x in x
0.224 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.224 * [taylor]: Taking taylor expansion of y in x
0.224 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.224 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.224 * [taylor]: Taking taylor expansion of x in x
0.224 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.224 * [taylor]: Taking taylor expansion of y in x
0.224 * [taylor]: Taking taylor expansion of (neg (pow y 2)) in y
0.224 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.224 * [taylor]: Taking taylor expansion of y in y
0.225 * [taylor]: Taking taylor expansion of 0 in y
0.226 * [taylor]: Taking taylor expansion of 1 in y
0.228 * [taylor]: Taking taylor expansion of 0 in y
0.230 * [taylor]: Taking taylor expansion of 0 in y
0.230 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.230 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.231 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.231 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.231 * [taylor]: Taking taylor expansion of x in y
0.231 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.231 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.231 * [taylor]: Taking taylor expansion of y in y
0.231 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.231 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.231 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.231 * [taylor]: Taking taylor expansion of x in x
0.232 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.232 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.232 * [taylor]: Taking taylor expansion of y in x
0.232 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.232 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.232 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.232 * [taylor]: Taking taylor expansion of x in x
0.233 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.233 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.233 * [taylor]: Taking taylor expansion of y in x
0.233 * [taylor]: Taking taylor expansion of 1 in y
0.234 * [taylor]: Taking taylor expansion of 0 in y
0.235 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 2))) in y
0.235 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.235 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.235 * [taylor]: Taking taylor expansion of y in y
0.238 * [taylor]: Taking taylor expansion of 0 in y
0.241 * [taylor]: Taking taylor expansion of 0 in y
0.243 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.243 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.243 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.243 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.243 * [taylor]: Taking taylor expansion of x in y
0.243 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.243 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.243 * [taylor]: Taking taylor expansion of y in y
0.243 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.243 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.243 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.243 * [taylor]: Taking taylor expansion of x in x
0.244 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.244 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.244 * [taylor]: Taking taylor expansion of y in x
0.244 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.244 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.244 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.244 * [taylor]: Taking taylor expansion of x in x
0.245 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.245 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.245 * [taylor]: Taking taylor expansion of y in x
0.245 * [taylor]: Taking taylor expansion of 1 in y
0.246 * [taylor]: Taking taylor expansion of 0 in y
0.247 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 2))) in y
0.247 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.247 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.247 * [taylor]: Taking taylor expansion of y in y
0.250 * [taylor]: Taking taylor expansion of 0 in y
0.253 * [taylor]: Taking taylor expansion of 0 in y
0.255 * * * * [progress]: [ 3 / 3 ] generating series at (2 1)
0.255 * [approximate]: Taking taylor expansion of (* 500.0 (- (pow x 2) (pow y 2))) in (x y) around 0
0.255 * [taylor]: Taking taylor expansion of (* 500.0 (- (pow x 2) (pow y 2))) in y
0.255 * [taylor]: Taking taylor expansion of 500.0 in y
0.255 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
0.255 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.255 * [taylor]: Taking taylor expansion of x in y
0.255 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.255 * [taylor]: Taking taylor expansion of y in y
0.255 * [taylor]: Taking taylor expansion of (* 500.0 (- (pow x 2) (pow y 2))) in x
0.255 * [taylor]: Taking taylor expansion of 500.0 in x
0.255 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.255 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.255 * [taylor]: Taking taylor expansion of x in x
0.255 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.255 * [taylor]: Taking taylor expansion of y in x
0.255 * [taylor]: Taking taylor expansion of (* 500.0 (- (pow x 2) (pow y 2))) in x
0.255 * [taylor]: Taking taylor expansion of 500.0 in x
0.255 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.255 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.255 * [taylor]: Taking taylor expansion of x in x
0.255 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.255 * [taylor]: Taking taylor expansion of y in x
0.256 * [taylor]: Taking taylor expansion of (* -500.0 (pow y 2)) in y
0.256 * [taylor]: Taking taylor expansion of -500.0 in y
0.256 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.256 * [taylor]: Taking taylor expansion of y in y
0.257 * [taylor]: Taking taylor expansion of 0 in y
0.258 * [taylor]: Taking taylor expansion of 500.0 in y
0.261 * [taylor]: Taking taylor expansion of 0 in y
0.264 * [taylor]: Taking taylor expansion of 0 in y
0.265 * [approximate]: Taking taylor expansion of (* 500.0 (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in (x y) around 0
0.265 * [taylor]: Taking taylor expansion of (* 500.0 (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.265 * [taylor]: Taking taylor expansion of 500.0 in y
0.265 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.265 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.265 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.265 * [taylor]: Taking taylor expansion of x in y
0.265 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.265 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.265 * [taylor]: Taking taylor expansion of y in y
0.266 * [taylor]: Taking taylor expansion of (* 500.0 (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.266 * [taylor]: Taking taylor expansion of 500.0 in x
0.266 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.266 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.266 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.266 * [taylor]: Taking taylor expansion of x in x
0.266 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.266 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.266 * [taylor]: Taking taylor expansion of y in x
0.266 * [taylor]: Taking taylor expansion of (* 500.0 (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.266 * [taylor]: Taking taylor expansion of 500.0 in x
0.266 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.266 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.266 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.266 * [taylor]: Taking taylor expansion of x in x
0.267 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.267 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.267 * [taylor]: Taking taylor expansion of y in x
0.268 * [taylor]: Taking taylor expansion of 500.0 in y
0.269 * [taylor]: Taking taylor expansion of 0 in y
0.271 * [taylor]: Taking taylor expansion of (neg (* 500.0 (/ 1 (pow y 2)))) in y
0.271 * [taylor]: Taking taylor expansion of (* 500.0 (/ 1 (pow y 2))) in y
0.271 * [taylor]: Taking taylor expansion of 500.0 in y
0.271 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.271 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.271 * [taylor]: Taking taylor expansion of y in y
0.274 * [taylor]: Taking taylor expansion of 0 in y
0.279 * [taylor]: Taking taylor expansion of 0 in y
0.281 * [approximate]: Taking taylor expansion of (* 500.0 (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in (x y) around 0
0.281 * [taylor]: Taking taylor expansion of (* 500.0 (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.281 * [taylor]: Taking taylor expansion of 500.0 in y
0.281 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.281 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.281 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.281 * [taylor]: Taking taylor expansion of x in y
0.281 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.281 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.281 * [taylor]: Taking taylor expansion of y in y
0.282 * [taylor]: Taking taylor expansion of (* 500.0 (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.282 * [taylor]: Taking taylor expansion of 500.0 in x
0.282 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.282 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.282 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.282 * [taylor]: Taking taylor expansion of x in x
0.283 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.283 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.283 * [taylor]: Taking taylor expansion of y in x
0.287 * [taylor]: Taking taylor expansion of (* 500.0 (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.287 * [taylor]: Taking taylor expansion of 500.0 in x
0.287 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.287 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.287 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.287 * [taylor]: Taking taylor expansion of x in x
0.288 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.288 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.288 * [taylor]: Taking taylor expansion of y in x
0.289 * [taylor]: Taking taylor expansion of 500.0 in y
0.290 * [taylor]: Taking taylor expansion of 0 in y
0.292 * [taylor]: Taking taylor expansion of (neg (* 500.0 (/ 1 (pow y 2)))) in y
0.292 * [taylor]: Taking taylor expansion of (* 500.0 (/ 1 (pow y 2))) in y
0.292 * [taylor]: Taking taylor expansion of 500.0 in y
0.292 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.292 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.292 * [taylor]: Taking taylor expansion of y in y
0.296 * [taylor]: Taking taylor expansion of 0 in y
0.300 * [taylor]: Taking taylor expansion of 0 in y
0.303 * * * [progress]: simplifying candidates
0.304 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (+ (log 500.0) (log (- (* x x) (* y y)))) (log (+ x y)))
  (- (log (* 500.0 (- (* x x) (* y y)))) (log (+ x y)))
  (log (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))
  (exp (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))
  (/ (* (* (* 500.0 500.0) 500.0) (* (* (- (* x x) (* y y)) (- (* x x) (* y y))) (- (* x x) (* y y)))) (* (* (+ x y) (+ x y)) (+ x y)))
  (/ (* (* (* 500.0 (- (* x x) (* y y))) (* 500.0 (- (* x x) (* y y)))) (* 500.0 (- (* x x) (* y y)))) (* (* (+ x y) (+ x y)) (+ x y)))
  (* (cbrt (/ (* 500.0 (- (* x x) (* y y))) (+ x y))) (cbrt (/ (* 500.0 (- (* x x) (* y y))) (+ x y))))
  (cbrt (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))
  (* (* (/ (* 500.0 (- (* x x) (* y y))) (+ x y)) (/ (* 500.0 (- (* x x) (* y y))) (+ x y))) (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))
  (sqrt (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))
  (sqrt (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))
  (neg (* 500.0 (- (* x x) (* y y))))
  (neg (+ x y))
  (/ 500.0 (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (- (* x x) (* y y)) (cbrt (+ x y)))
  (/ 500.0 (sqrt (+ x y)))
  (/ (- (* x x) (* y y)) (sqrt (+ x y)))
  (/ 500.0 1)
  (/ (- (* x x) (* y y)) (+ x y))
  (/ 500.0 1)
  (/ (- (* x x) (* y y)) (+ x y))
  (/ 1 (+ x y))
  (/ (+ x y) (* 500.0 (- (* x x) (* y y))))
  (/ (* 500.0 (- (* x x) (* y y))) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (* 500.0 (- (* x x) (* y y))) (sqrt (+ x y)))
  (/ (* 500.0 (- (* x x) (* y y))) 1)
  (/ (* 500.0 (- (* x x) (* y y))) 1)
  (/ (+ x y) (- (* x x) (* y y)))
  (/ (* 500.0 (- (* x x) (* y y))) (+ (pow x 3) (pow y 3)))
  (/ (* 500.0 (- (* x x) (* y y))) (- (* x x) (* y y)))
  (* (+ x y) (+ (* (* x x) (* x x)) (+ (* (* y y) (* y y)) (* (* x x) (* y y)))))
  (* (+ x y) (+ (* x x) (* y y)))
  (/ (exp (* x x)) (exp (* y y)))
  (log (- (* x x) (* y y)))
  (exp (- (* x x) (* y y)))
  (* (cbrt (- (* x x) (* y y))) (cbrt (- (* x x) (* y y))))
  (cbrt (- (* x x) (* y y)))
  (* (* (- (* x x) (* y y)) (- (* x x) (* y y))) (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (- (pow (* x x) 3) (pow (* y y) 3))
  (+ (* (* x x) (* x x)) (+ (* (* y y) (* y y)) (* (* x x) (* y y))))
  (neg (* y y))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (+ (* x x) (* y y))
  (+ x y)
  (- x y)
  (neg (* y y))
  (* 500.0 (- (* x x) (* y y)))
  (+ (log 500.0) (log (- (* x x) (* y y))))
  (log (* 500.0 (- (* x x) (* y y))))
  (exp (* 500.0 (- (* x x) (* y y))))
  (* (* (* 500.0 500.0) 500.0) (* (* (- (* x x) (* y y)) (- (* x x) (* y y))) (- (* x x) (* y y))))
  (* (cbrt (* 500.0 (- (* x x) (* y y)))) (cbrt (* 500.0 (- (* x x) (* y y)))))
  (cbrt (* 500.0 (- (* x x) (* y y))))
  (* (* (* 500.0 (- (* x x) (* y y))) (* 500.0 (- (* x x) (* y y)))) (* 500.0 (- (* x x) (* y y))))
  (sqrt (* 500.0 (- (* x x) (* y y))))
  (sqrt (* 500.0 (- (* x x) (* y y))))
  (* (sqrt 500.0) (sqrt (- (* x x) (* y y))))
  (* (sqrt 500.0) (sqrt (- (* x x) (* y y))))
  (* 500.0 (* x x))
  (* 500.0 (neg (* y y)))
  (* 500.0 (* x x))
  (* 500.0 (neg (* y y)))
  (* (* x x) 500.0)
  (* (neg (* y y)) 500.0)
  (* (* x x) 500.0)
  (* (neg (* y y)) 500.0)
  (* 500.0 (* (cbrt (- (* x x) (* y y))) (cbrt (- (* x x) (* y y)))))
  (* 500.0 (sqrt (- (* x x) (* y y))))
  (* 500.0 1)
  (* 500.0 (+ x y))
  (* (cbrt 500.0) (- (* x x) (* y y)))
  (* (sqrt 500.0) (- (* x x) (* y y)))
  (* 500.0 (- (* x x) (* y y)))
  (* 500.0 (- (pow (* x x) 3) (pow (* y y) 3)))
  (* 500.0 (- (* (* x x) (* x x)) (* (* y y) (* y y))))
  (- (* 500.0 x) (* 500.0 y))
  (- (* 500.0 x) (* 500.0 y))
  (- (* 500.0 x) (* 500.0 y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (* 500.0 (pow x 2)) (* 500.0 (pow y 2)))
  (- (* 500.0 (pow x 2)) (* 500.0 (pow y 2)))
  (- (* 500.0 (pow x 2)) (* 500.0 (pow y 2)))
0.310 * * [simplify]: iteration  0 :  309  enodes  (cost  483 )
0.317 * * [simplify]: iteration  1 :  1609  enodes  (cost  406 )
0.351 * * [simplify]: iteration  2 :  5001  enodes  (cost  379 )
0.354 * [simplify]: Simplified to:
   (log (* 500.0 (- x y)))
  (log (* 500.0 (- x y)))
  (log (* 500.0 (- x y)))
  (exp (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))
  (pow (* 500.0 (- x y)) 3)
  (pow (* 500.0 (- x y)) 3)
  (* (cbrt (/ (* 500.0 (- (* x x) (* y y))) (+ x y))) (cbrt (/ (* 500.0 (- (* x x) (* y y))) (+ x y))))
  (cbrt (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))
  (pow (* 500.0 (- x y)) 3)
  (sqrt (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))
  (sqrt (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))
  (neg (* 500.0 (- (* x x) (* y y))))
  (neg (+ x y))
  (/ 500.0 (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (- (* x x) (* y y)) (cbrt (+ x y)))
  (/ 500.0 (sqrt (+ x y)))
  (/ (- (* x x) (* y y)) (sqrt (+ x y)))
  500.0
  (/ (- (* x x) (* y y)) (+ x y))
  500.0
  (/ (- (* x x) (* y y)) (+ x y))
  (/ 1 (+ x y))
  (/ (+ x y) (* 500.0 (- (* x x) (* y y))))
  (/ (* 500.0 (- (* x x) (* y y))) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (* 500.0 (- (* x x) (* y y))) (sqrt (+ x y)))
  (* 500.0 (- (* x x) (* y y)))
  (* 500.0 (- (* x x) (* y y)))
  (/ 1 (- x y))
  (/ (* 500.0 (- (* x x) (* y y))) (+ (pow x 3) (pow y 3)))
  500.0
  (* (+ (* (pow y 2) (+ (pow y 2) (pow x 2))) (* (* x x) (* x x))) (+ x y))
  (* (+ x y) (+ (* x x) (* y y)))
  (exp (- (* x x) (* y y)))
  (log (- (* x x) (* y y)))
  (exp (- (* x x) (* y y)))
  (* (cbrt (- (* x x) (* y y))) (cbrt (- (* x x) (* y y))))
  (cbrt (- (* x x) (* y y)))
  (pow (- (* x x) (* y y)) 3)
  (sqrt (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (- (pow (* x x) 3) (pow (* y y) 3))
  (+ (+ (pow x 4) (* (* x x) (* y y))) (pow y 4))
  (neg (* y y))
  (+ (* (neg (pow y 3)) y) (pow x 4))
  (+ (* x x) (* y y))
  (+ x y)
  (- x y)
  (neg (* y y))
  (* 500.0 (- (* x x) (* y y)))
  (log (* 500.0 (- (* x x) (* y y))))
  (log (* 500.0 (- (* x x) (* y y))))
  (exp (* 500.0 (- (* x x) (* y y))))
  (pow (* 500.0 (- (* x x) (* y y))) 3)
  (* (cbrt (* 500.0 (- (* x x) (* y y)))) (cbrt (* 500.0 (- (* x x) (* y y)))))
  (cbrt (* 500.0 (- (* x x) (* y y))))
  (pow (* 500.0 (- (* x x) (* y y))) 3)
  (sqrt (* 500.0 (- (* x x) (* y y))))
  (sqrt (* 500.0 (- (* x x) (* y y))))
  (* (sqrt 500.0) (sqrt (- (* x x) (* y y))))
  (* (sqrt 500.0) (sqrt (- (* x x) (* y y))))
  (* 500.0 (* x x))
  (* 500.0 (neg (* y y)))
  (* 500.0 (* x x))
  (* 500.0 (neg (* y y)))
  (* 500.0 (* x x))
  (* 500.0 (neg (* y y)))
  (* 500.0 (* x x))
  (* 500.0 (neg (* y y)))
  (* 500.0 (* (cbrt (- (* x x) (* y y))) (cbrt (- (* x x) (* y y)))))
  (* 500.0 (sqrt (- (* x x) (* y y))))
  500.0
  (* 500.0 (+ x y))
  (* (cbrt 500.0) (- (* x x) (* y y)))
  (* (sqrt 500.0) (- (* x x) (* y y)))
  (* 500.0 (- (* x x) (* y y)))
  (* 500.0 (- (pow (* x x) 3) (pow (* y y) 3)))
  (+ (* 500.0 (pow x 4)) (* 500.0 (* (neg (pow y 3)) y)))
  (* 500.0 (- x y))
  (* 500.0 (- x y))
  (* 500.0 (- x y))
  (- (* x x) (* y y))
  (- (* x x) (* y y))
  (- (* x x) (* y y))
  (* 500.0 (- (* x x) (* y y)))
  (* 500.0 (- (* x x) (* y y)))
  (* 500.0 (- (* x x) (* y y)))
0.354 * * * [progress]: adding candidates to table
0.456 * [progress]: [Phase 3 of 3] Extracting.
0.456 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (* 500.0 (- x y)))> #<alt (λ (x y) (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))>)
0.456 * * * [regime-changes]: Trying 4 branch expressions: ((- x y) (* 500.0 (- x y)) y x)
0.456 * * * * [regimes]: Trying to branch on (- x y) from (#<alt (λ (x y) (* 500.0 (- x y)))> #<alt (λ (x y) (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))>)
0.471 * * * * [regimes]: Trying to branch on (* 500.0 (- x y)) from (#<alt (λ (x y) (* 500.0 (- x y)))> #<alt (λ (x y) (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))>)
0.483 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (* 500.0 (- x y)))> #<alt (λ (x y) (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))>)
0.493 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (* 500.0 (- x y)))> #<alt (λ (x y) (/ (* 500.0 (- (* x x) (* y y))) (+ x y)))>)
0.506 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.506 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 500.0 (- x y))
0.507 * * [simplify]: iteration  0 :  6  enodes  (cost  2 )
0.507 * * [simplify]: iteration  1 :  6  enodes  (cost  2 )
0.508 * [simplify]: Simplified to:
   (* 500.0 (- x y))
0.839 * [regime-testing]: Baseline error score: 0.016877109638704837
0.840 * [regime-testing]: Oracle error score: 0.01362670333791724
0.841 * [regime-testing]: End program error score: 0.016877109638704837