17.969 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.046 * * * [progress]: [2/2] Setting up program.
0.049 * [progress]: [Phase 2 of 3] Improving.
0.049 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x x) (* y y))
0.052 * * [simplify]: iteration  0 :  10  enodes  (cost  3 )
0.054 * * [simplify]: iteration  1 :  17  enodes  (cost  3 )
0.056 * * [simplify]: iteration  2 :  32  enodes  (cost  3 )
0.058 * * [simplify]: iteration  3 :  58  enodes  (cost  3 )
0.060 * * [simplify]: iteration  4 :  129  enodes  (cost  3 )
0.064 * * [simplify]: iteration  5 :  207  enodes  (cost  3 )
0.069 * * [simplify]: iteration  6 :  393  enodes  (cost  3 )
0.080 * * [simplify]: iteration  7 :  1794  enodes  (cost  3 )
0.132 * * [simplify]: iteration  8 :  5001  enodes  (cost  3 )
0.132 * [simplify]: Simplified to:
   (- (* x x) (* y y))
0.133 * * [progress]: iteration 1 / 4
0.133 * * * [progress]: picking best candidate
0.134 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
0.134 * * * [progress]: localizing error
0.138 * * * [progress]: generating rewritten candidates
0.138 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.141 * * * [progress]: generating series expansions
0.141 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.141 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
0.141 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
0.141 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.141 * [taylor]: Taking taylor expansion of x in y
0.141 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.141 * [taylor]: Taking taylor expansion of y in y
0.141 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.141 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.142 * [taylor]: Taking taylor expansion of x in x
0.142 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.142 * [taylor]: Taking taylor expansion of y in x
0.142 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.142 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.142 * [taylor]: Taking taylor expansion of x in x
0.142 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.142 * [taylor]: Taking taylor expansion of y in x
0.142 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
0.142 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.142 * [taylor]: Taking taylor expansion of y in y
0.143 * [taylor]: Taking taylor expansion of 0 in y
0.144 * [taylor]: Taking taylor expansion of 1 in y
0.145 * [taylor]: Taking taylor expansion of 0 in y
0.148 * [taylor]: Taking taylor expansion of 0 in y
0.148 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.148 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.148 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.148 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.148 * [taylor]: Taking taylor expansion of x in y
0.148 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.148 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.148 * [taylor]: Taking taylor expansion of y in y
0.149 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.149 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.149 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.149 * [taylor]: Taking taylor expansion of x in x
0.149 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.149 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.149 * [taylor]: Taking taylor expansion of y in x
0.149 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.150 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.150 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.150 * [taylor]: Taking taylor expansion of x in x
0.150 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.150 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.150 * [taylor]: Taking taylor expansion of y in x
0.150 * [taylor]: Taking taylor expansion of 1 in y
0.151 * [taylor]: Taking taylor expansion of 0 in y
0.153 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
0.153 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.153 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.153 * [taylor]: Taking taylor expansion of y in y
0.155 * [taylor]: Taking taylor expansion of 0 in y
0.158 * [taylor]: Taking taylor expansion of 0 in y
0.160 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.160 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.160 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.160 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.160 * [taylor]: Taking taylor expansion of x in y
0.160 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.160 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.160 * [taylor]: Taking taylor expansion of y in y
0.161 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.161 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.161 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.161 * [taylor]: Taking taylor expansion of x in x
0.161 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.161 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.161 * [taylor]: Taking taylor expansion of y in x
0.161 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.161 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.161 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.161 * [taylor]: Taking taylor expansion of x in x
0.162 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.162 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.162 * [taylor]: Taking taylor expansion of y in x
0.162 * [taylor]: Taking taylor expansion of 1 in y
0.163 * [taylor]: Taking taylor expansion of 0 in y
0.164 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
0.164 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.164 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.165 * [taylor]: Taking taylor expansion of y in y
0.167 * [taylor]: Taking taylor expansion of 0 in y
0.170 * [taylor]: Taking taylor expansion of 0 in y
0.171 * * * [progress]: simplifying candidates
0.172 * [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))))
  (- (* y y))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (+ (* x x) (* y y))
  (+ x y)
  (- x y)
  (- (* y y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
0.175 * * [simplify]: iteration  0 :  93  enodes  (cost  83 )
0.177 * * [simplify]: iteration  1 :  375  enodes  (cost  72 )
0.183 * * [simplify]: iteration  2 :  1243  enodes  (cost  72 )
0.209 * * [simplify]: iteration  3 :  5001  enodes  (cost  72 )
0.210 * [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))
  (- (* y y))
  (+ (* (- (pow y 3)) y) (pow x 4))
  (+ (* x x) (* y y))
  (+ x y)
  (- x y)
  (- (* y y))
  (- (* x x) (* y y))
  (- (* x x) (* y y))
  (- (* x x) (* y y))
0.210 * * * [progress]: adding candidates to table
0.236 * * [progress]: iteration 2 / 4
0.236 * * * [progress]: picking best candidate
0.239 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
0.239 * * * [progress]: localizing error
0.244 * * * [progress]: generating rewritten candidates
0.244 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.262 * * * [progress]: generating series expansions
0.262 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.262 * [approximate]: Taking taylor expansion of (* (+ x y) (- x y)) in (x y) around 0
0.262 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
0.263 * [taylor]: Taking taylor expansion of (+ x y) in y
0.263 * [taylor]: Taking taylor expansion of x in y
0.263 * [taylor]: Taking taylor expansion of y in y
0.263 * [taylor]: Taking taylor expansion of (- x y) in y
0.263 * [taylor]: Taking taylor expansion of x in y
0.263 * [taylor]: Taking taylor expansion of y in y
0.263 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.263 * [taylor]: Taking taylor expansion of (+ x y) in x
0.263 * [taylor]: Taking taylor expansion of x in x
0.263 * [taylor]: Taking taylor expansion of y in x
0.263 * [taylor]: Taking taylor expansion of (- x y) in x
0.263 * [taylor]: Taking taylor expansion of x in x
0.263 * [taylor]: Taking taylor expansion of y in x
0.263 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.263 * [taylor]: Taking taylor expansion of (+ x y) in x
0.263 * [taylor]: Taking taylor expansion of x in x
0.263 * [taylor]: Taking taylor expansion of y in x
0.263 * [taylor]: Taking taylor expansion of (- x y) in x
0.263 * [taylor]: Taking taylor expansion of x in x
0.263 * [taylor]: Taking taylor expansion of y in x
0.263 * [taylor]: Taking taylor expansion of (* -1 (pow y 2)) in y
0.263 * [taylor]: Taking taylor expansion of -1 in y
0.263 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.263 * [taylor]: Taking taylor expansion of y in y
0.264 * [taylor]: Taking taylor expansion of 0 in y
0.265 * [taylor]: Taking taylor expansion of 1 in y
0.267 * [taylor]: Taking taylor expansion of 0 in y
0.269 * [taylor]: Taking taylor expansion of 0 in y
0.269 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in (x y) around 0
0.269 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
0.269 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.269 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.269 * [taylor]: Taking taylor expansion of x in y
0.269 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.269 * [taylor]: Taking taylor expansion of y in y
0.270 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.270 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.270 * [taylor]: Taking taylor expansion of y in y
0.270 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.270 * [taylor]: Taking taylor expansion of x in y
0.270 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.270 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.270 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.270 * [taylor]: Taking taylor expansion of x in x
0.270 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.270 * [taylor]: Taking taylor expansion of y in x
0.270 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.270 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.270 * [taylor]: Taking taylor expansion of y in x
0.271 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.271 * [taylor]: Taking taylor expansion of x in x
0.271 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.271 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.271 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.271 * [taylor]: Taking taylor expansion of x in x
0.271 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.271 * [taylor]: Taking taylor expansion of y in x
0.271 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.271 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.271 * [taylor]: Taking taylor expansion of y in x
0.271 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.271 * [taylor]: Taking taylor expansion of x in x
0.272 * [taylor]: Taking taylor expansion of 1 in y
0.273 * [taylor]: Taking taylor expansion of 0 in y
0.276 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
0.276 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.276 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.276 * [taylor]: Taking taylor expansion of y in y
0.279 * [taylor]: Taking taylor expansion of 0 in y
0.283 * [taylor]: Taking taylor expansion of 0 in y
0.286 * [approximate]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in (x y) around 0
0.287 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in y
0.287 * [taylor]: Taking taylor expansion of -1 in y
0.287 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
0.287 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.287 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.287 * [taylor]: Taking taylor expansion of y in y
0.287 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.287 * [taylor]: Taking taylor expansion of x in y
0.287 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.287 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.287 * [taylor]: Taking taylor expansion of y in y
0.287 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.287 * [taylor]: Taking taylor expansion of x in y
0.287 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
0.287 * [taylor]: Taking taylor expansion of -1 in x
0.287 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.288 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.288 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.288 * [taylor]: Taking taylor expansion of y in x
0.288 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.288 * [taylor]: Taking taylor expansion of x in x
0.288 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.288 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.288 * [taylor]: Taking taylor expansion of y in x
0.288 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.288 * [taylor]: Taking taylor expansion of x in x
0.288 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
0.288 * [taylor]: Taking taylor expansion of -1 in x
0.288 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.288 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.288 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.288 * [taylor]: Taking taylor expansion of y in x
0.288 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.288 * [taylor]: Taking taylor expansion of x in x
0.289 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.289 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.289 * [taylor]: Taking taylor expansion of y in x
0.289 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.289 * [taylor]: Taking taylor expansion of x in x
0.290 * [taylor]: Taking taylor expansion of 1 in y
0.292 * [taylor]: Taking taylor expansion of 0 in y
0.295 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
0.295 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.295 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.295 * [taylor]: Taking taylor expansion of y in y
0.299 * [taylor]: Taking taylor expansion of 0 in y
0.303 * [taylor]: Taking taylor expansion of 0 in y
0.305 * * * [progress]: simplifying candidates
0.305 * [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) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* x (+ x y))
  (* (- 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))
0.309 * * [simplify]: iteration  0 :  196  enodes  (cost  201 )
0.313 * * [simplify]: iteration  1 :  986  enodes  (cost  187 )
0.334 * * [simplify]: iteration  2 :  5001  enodes  (cost  187 )
0.336 * [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))
  (* (- y) (+ x y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* x (+ x y))
  (* (- 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))
0.336 * * * [progress]: adding candidates to table
0.394 * * [progress]: iteration 3 / 4
0.394 * * * [progress]: picking best candidate
0.395 * * * * [pick]: Picked  #<alt (λ (x y) (+ (* x (+ x y)) (* (- y) (+ x y))))>
0.395 * * * [progress]: localizing error
0.401 * * * [progress]: generating rewritten candidates
0.402 * * * * [progress]: [ 1 / 3 ] rewriting at (2 1)
0.411 * * * * [progress]: [ 2 / 3 ] rewriting at (2 2)
0.423 * * * * [progress]: [ 3 / 3 ] rewriting at (2)
0.431 * * * [progress]: generating series expansions
0.431 * * * * [progress]: [ 1 / 3 ] generating series at (2 1)
0.431 * [approximate]: Taking taylor expansion of (* x (+ x y)) in (x y) around 0
0.431 * [taylor]: Taking taylor expansion of (* x (+ x y)) in y
0.431 * [taylor]: Taking taylor expansion of x in y
0.431 * [taylor]: Taking taylor expansion of (+ x y) in y
0.431 * [taylor]: Taking taylor expansion of x in y
0.431 * [taylor]: Taking taylor expansion of y in y
0.431 * [taylor]: Taking taylor expansion of (* x (+ x y)) in x
0.431 * [taylor]: Taking taylor expansion of x in x
0.431 * [taylor]: Taking taylor expansion of (+ x y) in x
0.431 * [taylor]: Taking taylor expansion of x in x
0.431 * [taylor]: Taking taylor expansion of y in x
0.431 * [taylor]: Taking taylor expansion of (* x (+ x y)) in x
0.431 * [taylor]: Taking taylor expansion of x in x
0.431 * [taylor]: Taking taylor expansion of (+ x y) in x
0.431 * [taylor]: Taking taylor expansion of x in x
0.431 * [taylor]: Taking taylor expansion of y in x
0.431 * [taylor]: Taking taylor expansion of 0 in y
0.432 * [taylor]: Taking taylor expansion of y in y
0.432 * [taylor]: Taking taylor expansion of 1 in y
0.434 * [taylor]: Taking taylor expansion of 0 in y
0.437 * [taylor]: Taking taylor expansion of 0 in y
0.438 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) x) in (x y) around 0
0.438 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) x) in y
0.438 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.438 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.438 * [taylor]: Taking taylor expansion of y in y
0.438 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.438 * [taylor]: Taking taylor expansion of x in y
0.438 * [taylor]: Taking taylor expansion of x in y
0.438 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) x) in x
0.438 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.438 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.438 * [taylor]: Taking taylor expansion of y in x
0.438 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.438 * [taylor]: Taking taylor expansion of x in x
0.439 * [taylor]: Taking taylor expansion of x in x
0.439 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) x) in x
0.439 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.439 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.439 * [taylor]: Taking taylor expansion of y in x
0.439 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.439 * [taylor]: Taking taylor expansion of x in x
0.439 * [taylor]: Taking taylor expansion of x in x
0.440 * [taylor]: Taking taylor expansion of 1 in y
0.441 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.441 * [taylor]: Taking taylor expansion of y in y
0.443 * [taylor]: Taking taylor expansion of 0 in y
0.445 * [taylor]: Taking taylor expansion of 0 in y
0.448 * [taylor]: Taking taylor expansion of 0 in y
0.449 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) x) in (x y) around 0
0.449 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) x) in y
0.449 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.449 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.449 * [taylor]: Taking taylor expansion of y in y
0.449 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.449 * [taylor]: Taking taylor expansion of x in y
0.449 * [taylor]: Taking taylor expansion of x in y
0.449 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) x) in x
0.449 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.449 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.449 * [taylor]: Taking taylor expansion of y in x
0.449 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.449 * [taylor]: Taking taylor expansion of x in x
0.450 * [taylor]: Taking taylor expansion of x in x
0.450 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) x) in x
0.450 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.450 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.450 * [taylor]: Taking taylor expansion of y in x
0.450 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.450 * [taylor]: Taking taylor expansion of x in x
0.451 * [taylor]: Taking taylor expansion of x in x
0.451 * [taylor]: Taking taylor expansion of 1 in y
0.452 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.452 * [taylor]: Taking taylor expansion of y in y
0.454 * [taylor]: Taking taylor expansion of 0 in y
0.456 * [taylor]: Taking taylor expansion of 0 in y
0.459 * [taylor]: Taking taylor expansion of 0 in y
0.460 * * * * [progress]: [ 2 / 3 ] generating series at (2 2)
0.460 * [approximate]: Taking taylor expansion of (* -1 (* y (+ x y))) in (y x) around 0
0.460 * [taylor]: Taking taylor expansion of (* -1 (* y (+ x y))) in x
0.460 * [taylor]: Taking taylor expansion of -1 in x
0.460 * [taylor]: Taking taylor expansion of (* y (+ x y)) in x
0.460 * [taylor]: Taking taylor expansion of y in x
0.460 * [taylor]: Taking taylor expansion of (+ x y) in x
0.460 * [taylor]: Taking taylor expansion of x in x
0.460 * [taylor]: Taking taylor expansion of y in x
0.460 * [taylor]: Taking taylor expansion of (* -1 (* y (+ x y))) in y
0.460 * [taylor]: Taking taylor expansion of -1 in y
0.460 * [taylor]: Taking taylor expansion of (* y (+ x y)) in y
0.460 * [taylor]: Taking taylor expansion of y in y
0.460 * [taylor]: Taking taylor expansion of (+ x y) in y
0.460 * [taylor]: Taking taylor expansion of x in y
0.460 * [taylor]: Taking taylor expansion of y in y
0.460 * [taylor]: Taking taylor expansion of (* -1 (* y (+ x y))) in y
0.460 * [taylor]: Taking taylor expansion of -1 in y
0.460 * [taylor]: Taking taylor expansion of (* y (+ x y)) in y
0.460 * [taylor]: Taking taylor expansion of y in y
0.460 * [taylor]: Taking taylor expansion of (+ x y) in y
0.460 * [taylor]: Taking taylor expansion of x in y
0.460 * [taylor]: Taking taylor expansion of y in y
0.460 * [taylor]: Taking taylor expansion of 0 in x
0.461 * [taylor]: Taking taylor expansion of (- x) in x
0.461 * [taylor]: Taking taylor expansion of x in x
0.463 * [taylor]: Taking taylor expansion of (- 1) in x
0.463 * [taylor]: Taking taylor expansion of 1 in x
0.465 * [taylor]: Taking taylor expansion of 0 in x
0.468 * [taylor]: Taking taylor expansion of 0 in x
0.468 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (/ 1 y) (/ 1 x)) y)) in (y x) around 0
0.468 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 y) (/ 1 x)) y)) in x
0.468 * [taylor]: Taking taylor expansion of -1 in x
0.468 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) y) in x
0.468 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.468 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.468 * [taylor]: Taking taylor expansion of y in x
0.468 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.468 * [taylor]: Taking taylor expansion of x in x
0.468 * [taylor]: Taking taylor expansion of y in x
0.469 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 y) (/ 1 x)) y)) in y
0.469 * [taylor]: Taking taylor expansion of -1 in y
0.469 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) y) in y
0.469 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.469 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.469 * [taylor]: Taking taylor expansion of y in y
0.469 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.469 * [taylor]: Taking taylor expansion of x in y
0.469 * [taylor]: Taking taylor expansion of y in y
0.470 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 y) (/ 1 x)) y)) in y
0.470 * [taylor]: Taking taylor expansion of -1 in y
0.470 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) y) in y
0.470 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.470 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.470 * [taylor]: Taking taylor expansion of y in y
0.470 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.470 * [taylor]: Taking taylor expansion of x in y
0.470 * [taylor]: Taking taylor expansion of y in y
0.471 * [taylor]: Taking taylor expansion of -1 in x
0.472 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.472 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.472 * [taylor]: Taking taylor expansion of x in x
0.475 * [taylor]: Taking taylor expansion of 0 in x
0.478 * [taylor]: Taking taylor expansion of 0 in x
0.482 * [taylor]: Taking taylor expansion of 0 in x
0.483 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (/ 1 y) (/ 1 x)) y)) in (y x) around 0
0.483 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 y) (/ 1 x)) y)) in x
0.483 * [taylor]: Taking taylor expansion of -1 in x
0.483 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) y) in x
0.483 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.483 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.483 * [taylor]: Taking taylor expansion of y in x
0.483 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.483 * [taylor]: Taking taylor expansion of x in x
0.483 * [taylor]: Taking taylor expansion of y in x
0.483 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 y) (/ 1 x)) y)) in y
0.483 * [taylor]: Taking taylor expansion of -1 in y
0.483 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) y) in y
0.483 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.483 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.483 * [taylor]: Taking taylor expansion of y in y
0.484 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.484 * [taylor]: Taking taylor expansion of x in y
0.484 * [taylor]: Taking taylor expansion of y in y
0.484 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 y) (/ 1 x)) y)) in y
0.484 * [taylor]: Taking taylor expansion of -1 in y
0.484 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) (/ 1 x)) y) in y
0.484 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.484 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.484 * [taylor]: Taking taylor expansion of y in y
0.485 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.485 * [taylor]: Taking taylor expansion of x in y
0.485 * [taylor]: Taking taylor expansion of y in y
0.485 * [taylor]: Taking taylor expansion of -1 in x
0.487 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.487 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.487 * [taylor]: Taking taylor expansion of x in x
0.489 * [taylor]: Taking taylor expansion of 0 in x
0.493 * [taylor]: Taking taylor expansion of 0 in x
0.497 * [taylor]: Taking taylor expansion of 0 in x
0.497 * * * * [progress]: [ 3 / 3 ] generating series at (2)
0.498 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
0.498 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
0.498 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.498 * [taylor]: Taking taylor expansion of x in y
0.498 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.498 * [taylor]: Taking taylor expansion of y in y
0.498 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.498 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.498 * [taylor]: Taking taylor expansion of x in x
0.498 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.498 * [taylor]: Taking taylor expansion of y in x
0.498 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.498 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.498 * [taylor]: Taking taylor expansion of x in x
0.498 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.498 * [taylor]: Taking taylor expansion of y in x
0.498 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
0.498 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.498 * [taylor]: Taking taylor expansion of y in y
0.499 * [taylor]: Taking taylor expansion of 0 in y
0.500 * [taylor]: Taking taylor expansion of 1 in y
0.502 * [taylor]: Taking taylor expansion of 0 in y
0.504 * [taylor]: Taking taylor expansion of 0 in y
0.505 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.505 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.505 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.505 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.505 * [taylor]: Taking taylor expansion of x in y
0.505 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.505 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.505 * [taylor]: Taking taylor expansion of y in y
0.506 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.506 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.506 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.506 * [taylor]: Taking taylor expansion of x in x
0.507 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.507 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.507 * [taylor]: Taking taylor expansion of y in x
0.507 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.507 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.507 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.507 * [taylor]: Taking taylor expansion of x in x
0.507 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.507 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.507 * [taylor]: Taking taylor expansion of y in x
0.508 * [taylor]: Taking taylor expansion of 1 in y
0.509 * [taylor]: Taking taylor expansion of 0 in y
0.510 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
0.510 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.510 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.510 * [taylor]: Taking taylor expansion of y in y
0.513 * [taylor]: Taking taylor expansion of 0 in y
0.516 * [taylor]: Taking taylor expansion of 0 in y
0.518 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.518 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.518 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.518 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.518 * [taylor]: Taking taylor expansion of x in y
0.518 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.518 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.518 * [taylor]: Taking taylor expansion of y in y
0.519 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.519 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.519 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.519 * [taylor]: Taking taylor expansion of x in x
0.519 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.519 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.519 * [taylor]: Taking taylor expansion of y in x
0.520 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.520 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.520 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.520 * [taylor]: Taking taylor expansion of x in x
0.520 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.520 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.520 * [taylor]: Taking taylor expansion of y in x
0.521 * [taylor]: Taking taylor expansion of 1 in y
0.522 * [taylor]: Taking taylor expansion of 0 in y
0.526 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
0.526 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.526 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.526 * [taylor]: Taking taylor expansion of y in y
0.528 * [taylor]: Taking taylor expansion of 0 in y
0.531 * [taylor]: Taking taylor expansion of 0 in y
0.533 * * * [progress]: simplifying candidates
0.534 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (+ x y))
  (+ (log x) (log (+ x y)))
  (log (* x (+ x y)))
  (exp (* x (+ x y)))
  (* (* (* x x) x) (* (* (+ x y) (+ x y)) (+ x y)))
  (* (cbrt (* x (+ x y))) (cbrt (* x (+ x y))))
  (cbrt (* x (+ x y)))
  (* (* (* x (+ x y)) (* x (+ x y))) (* x (+ x y)))
  (sqrt (* x (+ x y)))
  (sqrt (* x (+ x y)))
  (* (sqrt x) (sqrt (+ x y)))
  (* (sqrt x) (sqrt (+ x y)))
  (* x x)
  (* x y)
  (* x x)
  (* y x)
  (* x (* (cbrt (+ x y)) (cbrt (+ x y))))
  (* x (sqrt (+ x y)))
  (* x 1)
  (* x 1)
  (* (cbrt x) (+ x y))
  (* (sqrt x) (+ x y))
  (* x (+ x y))
  (* x (+ (pow x 3) (pow y 3)))
  (* x (- (* x x) (* y y)))
  (* (- y) (+ x y))
  (+ (log (- y)) (log (+ x y)))
  (log (* (- y) (+ x y)))
  (exp (* (- y) (+ x y)))
  (* (* (* (- y) (- y)) (- y)) (* (* (+ x y) (+ x y)) (+ x y)))
  (* (cbrt (* (- y) (+ x y))) (cbrt (* (- y) (+ x y))))
  (cbrt (* (- y) (+ x y)))
  (* (* (* (- y) (+ x y)) (* (- y) (+ x y))) (* (- y) (+ x y)))
  (sqrt (* (- y) (+ x y)))
  (sqrt (* (- y) (+ x y)))
  (* (sqrt (- y)) (sqrt (+ x y)))
  (* (sqrt (- y)) (sqrt (+ x y)))
  (* y (+ x y))
  (* (- y) x)
  (* (- y) y)
  (* x (- y))
  (* y (- y))
  (* (- y) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (* (- y) (sqrt (+ x y)))
  (* (- y) 1)
  (* (- y) 1)
  (* (cbrt (- y)) (+ x y))
  (* (sqrt (- y)) (+ x y))
  (* (- y) (+ x y))
  (* y (+ x y))
  (* (cbrt y) (+ x y))
  (* (sqrt y) (+ x y))
  (* y (+ x y))
  (* (- (cbrt y)) (+ x y))
  (* (- (sqrt y)) (+ x y))
  (* (- y) (+ x y))
  (* (- y) (+ (pow x 3) (pow y 3)))
  (* (- y) (- (* x x) (* y y)))
  (* (exp (* x (+ x y))) (exp (* (- y) (+ x y))))
  (log (+ (* x (+ x y)) (* (- y) (+ x y))))
  (exp (+ (* x (+ x y)) (* (- y) (+ x y))))
  (* (cbrt (+ (* x (+ x y)) (* (- y) (+ x y)))) (cbrt (+ (* x (+ x y)) (* (- y) (+ x y)))))
  (cbrt (+ (* x (+ x y)) (* (- y) (+ x y))))
  (* (* (+ (* x (+ x y)) (* (- y) (+ x y))) (+ (* x (+ x y)) (* (- y) (+ x y)))) (+ (* x (+ x y)) (* (- y) (+ x y))))
  (sqrt (+ (* x (+ x y)) (* (- y) (+ x y))))
  (sqrt (+ (* x (+ x y)) (* (- y) (+ x y))))
  (+ (* (* x (+ (pow x 3) (pow y 3))) (+ (* x x) (- (* y y) (* x y)))) (* (+ (* x x) (- (* y y) (* x y))) (* (- y) (+ (pow x 3) (pow y 3)))))
  (* (+ (* x x) (- (* y y) (* x y))) (+ (* x x) (- (* y y) (* x y))))
  (+ (* (* x (+ (pow x 3) (pow y 3))) (- x y)) (* (+ (* x x) (- (* y y) (* x y))) (* (- y) (- (* x x) (* y y)))))
  (* (+ (* x x) (- (* y y) (* x y))) (- x y))
  (+ (* (* x (- (* x x) (* y y))) (+ (* x x) (- (* y y) (* x y)))) (* (- x y) (* (- y) (+ (pow x 3) (pow y 3)))))
  (* (- x y) (+ (* x x) (- (* y y) (* x y))))
  (+ (* (* x (- (* x x) (* y y))) (- x y)) (* (- x y) (* (- y) (- (* x x) (* y y)))))
  (* (- x y) (- x y))
  (+ (pow (* x (+ x y)) 3) (pow (* (- y) (+ x y)) 3))
  (+ (* (* x (+ x y)) (* x (+ x y))) (- (* (* (- y) (+ x y)) (* (- y) (+ x y))) (* (* x (+ x y)) (* (- y) (+ x y)))))
  (- (* (* x (+ x y)) (* x (+ x y))) (* (* (- y) (+ x y)) (* (- y) (+ x y))))
  (- (* x (+ x y)) (* (- y) (+ x y)))
  (+ x (- y))
  (+ (* x (+ x y)) (* (- y) x))
  (+ (* x (+ x y)) (* x (- y)))
  (+ (* x y) (* (- y) (+ x y)))
  (+ (* y x) (* (- y) (+ x y)))
  (+ (pow x 2) (* x y))
  (+ (pow x 2) (* x y))
  (+ (pow x 2) (* x y))
  (- (+ (pow y 2) (* x y)))
  (- (+ (pow y 2) (* x y)))
  (- (+ (pow y 2) (* x y)))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
0.539 * * [simplify]: iteration  0 :  413  enodes  (cost  456 )
0.549 * * [simplify]: iteration  1 :  2295  enodes  (cost  398 )
0.600 * * [simplify]: iteration  2 :  5001  enodes  (cost  398 )
0.603 * [simplify]: Simplified to:
   (* x (+ x y))
  (log (* x (+ x y)))
  (log (* x (+ x y)))
  (exp (* x (+ x y)))
  (pow (* x (+ x y)) 3)
  (* (cbrt (* x (+ x y))) (cbrt (* x (+ x y))))
  (cbrt (* x (+ x y)))
  (pow (* x (+ x y)) 3)
  (sqrt (* x (+ x y)))
  (sqrt (* x (+ x y)))
  (* (sqrt x) (sqrt (+ x y)))
  (* (sqrt x) (sqrt (+ x y)))
  (pow x 2)
  (* x y)
  (pow x 2)
  (* x y)
  (* x (* (cbrt (+ x y)) (cbrt (+ x y))))
  (* x (sqrt (+ x y)))
  x
  x
  (* (cbrt x) (+ x y))
  (* (sqrt x) (+ x y))
  (* x (+ x y))
  (* x (+ (pow x 3) (pow y 3)))
  (* x (- (* x x) (* y y)))
  (* (- y) (+ x y))
  (log (* (- y) (+ x y)))
  (log (* (- y) (+ x y)))
  (exp (* (- y) (+ x y)))
  (pow (* (- y) (+ x y)) 3)
  (* (cbrt (* (- y) (+ x y))) (cbrt (* (- y) (+ x y))))
  (cbrt (* (- y) (+ x y)))
  (pow (* (- y) (+ x y)) 3)
  (sqrt (* (- y) (+ x y)))
  (sqrt (* (- y) (+ x y)))
  (* (sqrt (- y)) (sqrt (+ x y)))
  (* (sqrt (- y)) (sqrt (+ x y)))
  (* y (+ x y))
  (* (- y) x)
  (* (- y) y)
  (* (- y) x)
  (* (- y) y)
  (* (- y) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (* (- y) (sqrt (+ x y)))
  (- y)
  (- y)
  (* (cbrt (- y)) (+ x y))
  (* (sqrt (- y)) (+ x y))
  (* (- y) (+ x y))
  (* y (+ x y))
  (* (cbrt y) (+ x y))
  (* (sqrt y) (+ x y))
  (* y (+ x y))
  (* (- (cbrt y)) (+ x y))
  (* (- (sqrt y)) (+ x y))
  (* (- y) (+ x y))
  (* (- y) (+ (pow x 3) (pow y 3)))
  (* (- y) (- (* x x) (* y y)))
  (pow (exp (+ x y)) (- x y))
  (+ (log (+ x y)) (log (- x y)))
  (pow (exp (+ x y)) (- x y))
  (* (cbrt (+ (* x (+ x y)) (* (- y) (+ x y)))) (cbrt (+ (* x (+ x y)) (* (- y) (+ x y)))))
  (cbrt (+ (* x (+ x y)) (* (- y) (+ x y))))
  (pow (- (* x x) (* y y)) 3)
  (sqrt (+ (* x (+ x y)) (* (- y) (+ x y))))
  (sqrt (+ (* x (+ x y)) (* (- y) (+ x y))))
  (* (+ (* y (- y x)) (pow x 2)) (+ (* (- y) (+ (pow x 3) (pow y 3))) (* x (+ (pow x 3) (pow y 3)))))
  (* (+ (* y (- y x)) (pow x 2)) (+ (pow x 2) (* y (- y x))))
  (+ (* (* x (+ (pow x 3) (pow y 3))) (- x y)) (* (+ (* x x) (- (* y y) (* x y))) (* (- y) (- (* x x) (* y y)))))
  (* (- x y) (+ (pow x 2) (* y (- y x))))
  (+ (* (* x (- (* x x) (* y y))) (+ (* x x) (- (* y y) (* x y)))) (* (- x y) (* (- y) (+ (pow x 3) (pow y 3)))))
  (* (- x y) (+ (pow x 2) (* y (- y x))))
  (* (- x y) (+ (* (- y) (- (* x x) (* y y))) (* x (- (* x x) (* y y)))))
  (* (- x y) (- x y))
  (* (pow (+ x y) 3) (+ (pow (- y) 3) (pow x 3)))
  (+ (* (* (+ x y) (+ x y)) (+ (pow x 2) (pow y 2))) (* (* y (+ x y)) (* x (+ x y))))
  (* (* (+ x y) (+ x y)) (- (* x x) (* y y)))
  (* (+ x y) (+ x y))
  (- x y)
  (* (- (+ x y) y) x)
  (* (- (+ x y) y) x)
  (- (* x y) (* y (+ x y)))
  (- (* x y) (* y (+ x y)))
  (* x (+ x y))
  (* x (+ x y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* (- y) (+ x y))
  (* (- y) (+ x y))
  (- (* x x) (* y y))
  (- (* x x) (* y y))
  (- (* x x) (* y y))
0.603 * * * [progress]: adding candidates to table
0.746 * [progress]: [Phase 3 of 3] Extracting.
0.746 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (+ (* x (+ x y)) (* (- y) (+ x y))))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
0.746 * * * [regime-changes]: Trying 2 branch expressions: (y x)
0.746 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (+ (* x (+ x y)) (* (- y) (+ x y))))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
0.757 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (+ (* x (+ x y)) (* (- y) (+ x y))))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
0.767 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
0.767 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (+ x y) (- x y))
0.768 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.768 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
0.768 * [simplify]: Simplified to:
   (* (+ x y) (- x y))
1.625 * [regime-testing]: Baseline error score: 0.0011251406425803225
1.625 * [regime-testing]: Oracle error score: 0.00037504688086010754
1.626 * [regime-testing]: End program error score: 0.0011251406425803225