10.446 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.020 * * * [progress]: [2/2] Setting up program.
0.023 * [progress]: [Phase 2 of 3] Improving.
0.023 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x x) (* y y))
0.025 * * [simplify]: iteration  0 :  10  enodes  (cost  3 )
0.026 * * [simplify]: iteration  1 :  17  enodes  (cost  3 )
0.027 * * [simplify]: iteration  2 :  32  enodes  (cost  3 )
0.028 * * [simplify]: iteration  3 :  58  enodes  (cost  3 )
0.029 * * [simplify]: iteration  4 :  129  enodes  (cost  3 )
0.031 * * [simplify]: iteration  5 :  207  enodes  (cost  3 )
0.034 * * [simplify]: iteration  6 :  393  enodes  (cost  3 )
0.043 * * [simplify]: iteration  7 :  1794  enodes  (cost  3 )
0.097 * * [simplify]: iteration  8 :  5001  enodes  (cost  3 )
0.098 * [simplify]: Simplified to:
   (- (* x x) (* y y))
0.098 * * [progress]: iteration 1 / 4
0.098 * * * [progress]: picking best candidate
0.101 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
0.101 * * * [progress]: localizing error
0.105 * * * [progress]: generating rewritten candidates
0.105 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.108 * * * [progress]: generating series expansions
0.108 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.108 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
0.108 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
0.108 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.108 * [taylor]: Taking taylor expansion of x in y
0.108 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.108 * [taylor]: Taking taylor expansion of y in y
0.108 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.108 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.108 * [taylor]: Taking taylor expansion of x in x
0.108 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.108 * [taylor]: Taking taylor expansion of y in x
0.108 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.108 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.108 * [taylor]: Taking taylor expansion of x in x
0.108 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.108 * [taylor]: Taking taylor expansion of y in x
0.109 * [taylor]: Taking taylor expansion of (neg (pow y 2)) in y
0.109 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.109 * [taylor]: Taking taylor expansion of y in y
0.109 * [taylor]: Taking taylor expansion of 0 in y
0.109 * [taylor]: Taking taylor expansion of 1 in y
0.109 * [taylor]: Taking taylor expansion of 0 in y
0.109 * [taylor]: Taking taylor expansion of 0 in y
0.110 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.110 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.110 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.110 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.110 * [taylor]: Taking taylor expansion of x in y
0.110 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.110 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.110 * [taylor]: Taking taylor expansion of y in y
0.110 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.110 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.110 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.110 * [taylor]: Taking taylor expansion of x in x
0.110 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.110 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.110 * [taylor]: Taking taylor expansion of y in x
0.110 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.110 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.110 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.110 * [taylor]: Taking taylor expansion of x in x
0.110 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.110 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.110 * [taylor]: Taking taylor expansion of y in x
0.110 * [taylor]: Taking taylor expansion of 1 in y
0.110 * [taylor]: Taking taylor expansion of 0 in y
0.111 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 2))) in y
0.111 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.111 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.111 * [taylor]: Taking taylor expansion of y in y
0.111 * [taylor]: Taking taylor expansion of 0 in y
0.111 * [taylor]: Taking taylor expansion of 0 in y
0.112 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.112 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.112 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.112 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.112 * [taylor]: Taking taylor expansion of x in y
0.112 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.112 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.112 * [taylor]: Taking taylor expansion of y in y
0.112 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.112 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.112 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.112 * [taylor]: Taking taylor expansion of x in x
0.112 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.112 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.112 * [taylor]: Taking taylor expansion of y in x
0.112 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.112 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.112 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.112 * [taylor]: Taking taylor expansion of x in x
0.112 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.112 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.112 * [taylor]: Taking taylor expansion of y in x
0.112 * [taylor]: Taking taylor expansion of 1 in y
0.112 * [taylor]: Taking taylor expansion of 0 in y
0.113 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 2))) in y
0.113 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.113 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.113 * [taylor]: Taking taylor expansion of y in y
0.113 * [taylor]: Taking taylor expansion of 0 in y
0.113 * [taylor]: Taking taylor expansion of 0 in y
0.114 * * * [progress]: simplifying candidates
0.114 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (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))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
0.116 * * [simplify]: iteration  0 :  93  enodes  (cost  83 )
0.119 * * [simplify]: iteration  1 :  375  enodes  (cost  72 )
0.124 * * [simplify]: iteration  2 :  1243  enodes  (cost  72 )
0.149 * * [simplify]: iteration  3 :  5001  enodes  (cost  72 )
0.150 * [simplify]: Simplified to:
   (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))
  (- (* x x) (* y y))
  (- (* x x) (* y y))
  (- (* x x) (* y y))
0.150 * * * [progress]: adding candidates to table
0.175 * * [progress]: iteration 2 / 4
0.175 * * * [progress]: picking best candidate
0.178 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
0.178 * * * [progress]: localizing error
0.182 * * * [progress]: generating rewritten candidates
0.182 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.191 * * * [progress]: generating series expansions
0.191 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.191 * [approximate]: Taking taylor expansion of (* (+ x y) (- x y)) in (x y) around 0
0.191 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
0.191 * [taylor]: Taking taylor expansion of (+ x y) in y
0.191 * [taylor]: Taking taylor expansion of x in y
0.191 * [taylor]: Taking taylor expansion of y in y
0.191 * [taylor]: Taking taylor expansion of (- x y) in y
0.191 * [taylor]: Taking taylor expansion of x in y
0.191 * [taylor]: Taking taylor expansion of y in y
0.191 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.191 * [taylor]: Taking taylor expansion of (+ x y) in x
0.191 * [taylor]: Taking taylor expansion of x in x
0.191 * [taylor]: Taking taylor expansion of y in x
0.191 * [taylor]: Taking taylor expansion of (- x y) in x
0.191 * [taylor]: Taking taylor expansion of x in x
0.191 * [taylor]: Taking taylor expansion of y in x
0.191 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.191 * [taylor]: Taking taylor expansion of (+ x y) in x
0.191 * [taylor]: Taking taylor expansion of x in x
0.191 * [taylor]: Taking taylor expansion of y in x
0.191 * [taylor]: Taking taylor expansion of (- x y) in x
0.191 * [taylor]: Taking taylor expansion of x in x
0.191 * [taylor]: Taking taylor expansion of y in x
0.191 * [taylor]: Taking taylor expansion of (* -1 (pow y 2)) in y
0.191 * [taylor]: Taking taylor expansion of -1 in y
0.191 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.191 * [taylor]: Taking taylor expansion of y in y
0.191 * [taylor]: Taking taylor expansion of 0 in y
0.191 * [taylor]: Taking taylor expansion of 1 in y
0.192 * [taylor]: Taking taylor expansion of 0 in y
0.192 * [taylor]: Taking taylor expansion of 0 in y
0.192 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in (x y) around 0
0.192 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
0.192 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.192 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.192 * [taylor]: Taking taylor expansion of x in y
0.192 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.192 * [taylor]: Taking taylor expansion of y in y
0.192 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.192 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.192 * [taylor]: Taking taylor expansion of y in y
0.192 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.192 * [taylor]: Taking taylor expansion of x in y
0.192 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.192 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.192 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.192 * [taylor]: Taking taylor expansion of x in x
0.192 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.192 * [taylor]: Taking taylor expansion of y in x
0.192 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.192 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.193 * [taylor]: Taking taylor expansion of y in x
0.193 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.193 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.193 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.193 * [taylor]: Taking taylor expansion of y in x
0.193 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.193 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.193 * [taylor]: Taking taylor expansion of y in x
0.193 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of 1 in y
0.193 * [taylor]: Taking taylor expansion of 0 in y
0.193 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 2))) in y
0.193 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.193 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.193 * [taylor]: Taking taylor expansion of y in y
0.194 * [taylor]: Taking taylor expansion of 0 in y
0.194 * [taylor]: Taking taylor expansion of 0 in y
0.195 * [approximate]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in (x y) around 0
0.195 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in y
0.195 * [taylor]: Taking taylor expansion of -1 in y
0.195 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
0.195 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.195 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.195 * [taylor]: Taking taylor expansion of y in y
0.195 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.195 * [taylor]: Taking taylor expansion of x in y
0.195 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.195 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.195 * [taylor]: Taking taylor expansion of y in y
0.195 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.195 * [taylor]: Taking taylor expansion of x in y
0.195 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
0.195 * [taylor]: Taking taylor expansion of -1 in x
0.195 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.195 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.195 * [taylor]: Taking taylor expansion of y in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.195 * [taylor]: Taking taylor expansion of x in x
0.195 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.195 * [taylor]: Taking taylor expansion of y in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.195 * [taylor]: Taking taylor expansion of x in x
0.195 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
0.195 * [taylor]: Taking taylor expansion of -1 in x
0.195 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.195 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.195 * [taylor]: Taking taylor expansion of y in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.195 * [taylor]: Taking taylor expansion of x in x
0.195 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.195 * [taylor]: Taking taylor expansion of y in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.195 * [taylor]: Taking taylor expansion of x in x
0.195 * [taylor]: Taking taylor expansion of 1 in y
0.196 * [taylor]: Taking taylor expansion of 0 in y
0.196 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 2))) in y
0.196 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.196 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.196 * [taylor]: Taking taylor expansion of y in y
0.197 * [taylor]: Taking taylor expansion of 0 in y
0.197 * [taylor]: Taking taylor expansion of 0 in y
0.197 * * * [progress]: simplifying candidates
0.198 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (+ x y) (- x y))
  (+ (log (+ x y)) (log (- x y)))
  (log (* (+ x y) (- x y)))
  (exp (* (+ x y) (- x y)))
  (* (* (* (+ x y) (+ x y)) (+ x y)) (* (* (- x y) (- x y)) (- x y)))
  (* (cbrt (* (+ x y) (- x y))) (cbrt (* (+ x y) (- x y))))
  (cbrt (* (+ x y) (- x y)))
  (* (* (* (+ x y) (- x y)) (* (+ x y) (- x y))) (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (* (+ (pow x 3) (pow y 3)) (- (pow x 3) (pow y 3)))
  (* (+ (* x x) (- (* y y) (* x y))) (+ (* x x) (+ (* y y) (* x y))))
  (* (+ (pow x 3) (pow y 3)) (- (* x x) (* y y)))
  (* (+ (* x x) (- (* y y) (* x y))) (+ x y))
  (* (- (* x x) (* y y)) (- (pow x 3) (pow y 3)))
  (* (- x y) (+ (* x x) (+ (* y y) (* x y))))
  (* (- (* x x) (* y y)) (- (* x x) (* y y)))
  (* (- x y) (+ x y))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (+ x y) x)
  (* (+ x y) (neg y))
  (* (+ x y) x)
  (* (+ x y) (neg y))
  (* x (+ x y))
  (* (neg y) (+ x y))
  (* x (+ x y))
  (* (neg y) (+ x y))
  (* (+ x y) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (+ x y) (sqrt (- x y)))
  (* (+ x y) 1)
  (* (+ x y) (+ (sqrt x) (sqrt y)))
  (* (+ x y) 1)
  (* (cbrt (+ x y)) (- x y))
  (* (sqrt (+ x y)) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- (pow x 3) (pow y 3)))
  (* (+ x y) (- (* x x) (* y y)))
  (* (+ (pow x 3) (pow y 3)) (- x y))
  (* (- (* x x) (* y y)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
0.201 * * [simplify]: iteration  0 :  196  enodes  (cost  201 )
0.205 * * [simplify]: iteration  1 :  986  enodes  (cost  187 )
0.225 * * [simplify]: iteration  2 :  5001  enodes  (cost  187 )
0.227 * [simplify]: Simplified to:
   (* (- x y) (+ x y))
  (log (* (+ x y) (- x y)))
  (log (* (+ x y) (- x y)))
  (exp (* (+ x y) (- x y)))
  (pow (* (- x y) (+ x y)) 3)
  (* (cbrt (* (+ x y) (- x y))) (cbrt (* (+ x y) (- x y))))
  (cbrt (* (+ x y) (- x y)))
  (pow (* (- x y) (+ x y)) 3)
  (sqrt (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (* (+ (pow x 3) (pow y 3)) (- (pow x 3) (pow y 3)))
  (* (+ (* y (+ y x)) (pow x 2)) (+ (* y (- y x)) (pow x 2)))
  (* (+ (pow x 3) (pow y 3)) (- (* x x) (* y y)))
  (* (+ x y) (+ (* y (- y x)) (pow x 2)))
  (* (- (* x x) (* y y)) (- (pow x 3) (pow y 3)))
  (* (+ (* y (+ y x)) (pow x 2)) (- x y))
  (* (* (+ x y) (- x y)) (* (+ x y) (- x y)))
  (* (- x y) (+ x y))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* x (+ x y))
  (* (neg y) (+ x y))
  (* x (+ x y))
  (* (neg y) (+ x y))
  (* x (+ x y))
  (* (neg y) (+ x y))
  (* x (+ x y))
  (* (neg y) (+ x y))
  (* (+ x y) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (+ x y) (sqrt (- x y)))
  (+ x y)
  (* (+ x y) (+ (sqrt x) (sqrt y)))
  (+ x y)
  (* (cbrt (+ x y)) (- x y))
  (* (sqrt (+ x y)) (- x y))
  (* (- x y) (+ x y))
  (* (- x y) (+ x y))
  (* (+ x y) (- (pow x 3) (pow y 3)))
  (* (+ x y) (- (* x x) (* y y)))
  (* (+ (pow x 3) (pow y 3)) (- x y))
  (* (- (* x x) (* y y)) (- x y))
  (* (- x y) (+ x y))
  (* (- x y) (+ x y))
  (* (- x y) (+ x y))
0.227 * * * [progress]: adding candidates to table
0.287 * [progress]: [Phase 3 of 3] Extracting.
0.287 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (* (+ x y) (- x y)))> #<alt (λ (x y) (- (* x x) (* y y)))>)
0.287 * * * [regime-changes]: Trying 5 branch expressions: ((* y y) (* x x) (- (* x x) (* y y)) y x)
0.287 * * * * [regimes]: Trying to branch on (* y y) from (#<alt (λ (x y) (* (+ x y) (- x y)))> #<alt (λ (x y) (- (* x x) (* y y)))>)
0.319 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (* (+ x y) (- x y)))> #<alt (λ (x y) (- (* x x) (* y y)))>)
0.348 * * * * [regimes]: Trying to branch on (- (* x x) (* y y)) from (#<alt (λ (x y) (* (+ x y) (- x y)))> #<alt (λ (x y) (- (* x x) (* y y)))>)
0.381 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (* (+ x y) (- x y)))> #<alt (λ (x y) (- (* x x) (* y y)))>)
0.412 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (* (+ x y) (- x y)))> #<alt (λ (x y) (- (* x x) (* y y)))>)
0.444 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.444 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (+ x y) (- x y))
0.445 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.445 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
0.445 * [simplify]: Simplified to:
   (* (+ x y) (- x y))
1.303 * [regime-testing]: Baseline error score: 0.0017502187773471684
1.303 * [regime-testing]: Oracle error score: 0.0007500937617202151
1.305 * [regime-testing]: End program error score: 0.0017502187773471684