0.498 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.018 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.021 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
0.023 * * [simplify]: iteration  0 :  23  enodes  (cost  6 )
0.024 * * [simplify]: iteration  1 :  52  enodes  (cost  6 )
0.026 * * [simplify]: iteration  2 :  117  enodes  (cost  6 )
0.028 * * [simplify]: iteration  3 :  240  enodes  (cost  6 )
0.032 * * [simplify]: iteration  4 :  478  enodes  (cost  6 )
0.039 * * [simplify]: iteration  5 :  947  enodes  (cost  6 )
0.051 * * [simplify]: iteration  6 :  1844  enodes  (cost  6 )
0.089 * * [simplify]: iteration  7 :  5001  enodes  (cost  6 )
0.089 * [simplify]: Simplified to:
   (/ (- x y) (/ (fma x x (* y y)) (+ x y)))
0.092 * * [progress]: iteration 1 / 4
0.092 * * * [progress]: picking best candidate
0.095 * * * * [pick]: Picked  #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))>
0.095 * * * [progress]: localizing error
0.104 * * * [progress]: generating rewritten candidates
0.104 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.115 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
0.120 * * * [progress]: generating series expansions
0.121 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.121 * [approximate]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in (x y) around 0
0.121 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in y
0.121 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
0.121 * [taylor]: Taking taylor expansion of (+ x y) in y
0.121 * [taylor]: Taking taylor expansion of x in y
0.121 * [taylor]: Taking taylor expansion of y in y
0.121 * [taylor]: Taking taylor expansion of (- x y) in y
0.121 * [taylor]: Taking taylor expansion of x in y
0.121 * [taylor]: Taking taylor expansion of y in y
0.121 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
0.121 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.121 * [taylor]: Taking taylor expansion of x in y
0.121 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.121 * [taylor]: Taking taylor expansion of y in y
0.122 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
0.122 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.122 * [taylor]: Taking taylor expansion of (+ x y) in x
0.122 * [taylor]: Taking taylor expansion of x in x
0.122 * [taylor]: Taking taylor expansion of y in x
0.122 * [taylor]: Taking taylor expansion of (- x y) in x
0.122 * [taylor]: Taking taylor expansion of x in x
0.122 * [taylor]: Taking taylor expansion of y in x
0.122 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.122 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.122 * [taylor]: Taking taylor expansion of x in x
0.122 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.122 * [taylor]: Taking taylor expansion of y in x
0.122 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
0.122 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.122 * [taylor]: Taking taylor expansion of (+ x y) in x
0.122 * [taylor]: Taking taylor expansion of x in x
0.122 * [taylor]: Taking taylor expansion of y in x
0.122 * [taylor]: Taking taylor expansion of (- x y) in x
0.122 * [taylor]: Taking taylor expansion of x in x
0.122 * [taylor]: Taking taylor expansion of y in x
0.122 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.122 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.122 * [taylor]: Taking taylor expansion of x in x
0.122 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.122 * [taylor]: Taking taylor expansion of y in x
0.123 * [taylor]: Taking taylor expansion of -1 in y
0.124 * [taylor]: Taking taylor expansion of 0 in y
0.126 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.126 * [taylor]: Taking taylor expansion of 2 in y
0.126 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.126 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.126 * [taylor]: Taking taylor expansion of y in y
0.136 * [taylor]: Taking taylor expansion of 0 in y
0.136 * [approximate]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in (x y) around 0
0.136 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.136 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
0.136 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.136 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.136 * [taylor]: Taking taylor expansion of x in y
0.136 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.136 * [taylor]: Taking taylor expansion of y in y
0.136 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.136 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.136 * [taylor]: Taking taylor expansion of y in y
0.137 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.137 * [taylor]: Taking taylor expansion of x in y
0.137 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.137 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.137 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.137 * [taylor]: Taking taylor expansion of x in y
0.137 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.137 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.137 * [taylor]: Taking taylor expansion of y in y
0.139 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.139 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.139 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.139 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.139 * [taylor]: Taking taylor expansion of x in x
0.139 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.139 * [taylor]: Taking taylor expansion of y in x
0.139 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.139 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.139 * [taylor]: Taking taylor expansion of y in x
0.139 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.139 * [taylor]: Taking taylor expansion of x in x
0.140 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.140 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.140 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.140 * [taylor]: Taking taylor expansion of x in x
0.140 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.140 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.140 * [taylor]: Taking taylor expansion of y in x
0.142 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.142 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.142 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.142 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.142 * [taylor]: Taking taylor expansion of x in x
0.142 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.142 * [taylor]: Taking taylor expansion of y in x
0.142 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.142 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.142 * [taylor]: Taking taylor expansion of y in x
0.142 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.142 * [taylor]: Taking taylor expansion of x in x
0.142 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.142 * [taylor]: Taking taylor expansion of (/ 1 (pow x 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
0.143 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.143 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.143 * [taylor]: Taking taylor expansion of y in x
0.144 * [taylor]: Taking taylor expansion of 1 in y
0.147 * [taylor]: Taking taylor expansion of 0 in y
0.151 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
0.151 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.151 * [taylor]: Taking taylor expansion of 2 in y
0.151 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.151 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.151 * [taylor]: Taking taylor expansion of y in y
0.159 * [taylor]: Taking taylor expansion of 0 in y
0.159 * [approximate]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in (x y) around 0
0.160 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in y
0.160 * [taylor]: Taking taylor expansion of -1 in y
0.160 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.160 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
0.160 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.160 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.160 * [taylor]: Taking taylor expansion of y in y
0.160 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.160 * [taylor]: Taking taylor expansion of x in y
0.160 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.160 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.160 * [taylor]: Taking taylor expansion of y in y
0.160 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.160 * [taylor]: Taking taylor expansion of x in y
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
0.161 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.161 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.161 * [taylor]: Taking taylor expansion of y in y
0.162 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
0.162 * [taylor]: Taking taylor expansion of -1 in x
0.162 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.162 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.162 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.162 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.162 * [taylor]: Taking taylor expansion of y in x
0.162 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.162 * [taylor]: Taking taylor expansion of x in x
0.163 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.163 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.163 * [taylor]: Taking taylor expansion of y in x
0.163 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.163 * [taylor]: Taking taylor expansion of x in x
0.163 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.163 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.163 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.163 * [taylor]: Taking taylor expansion of x in x
0.164 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.164 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.164 * [taylor]: Taking taylor expansion of y in x
0.165 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
0.165 * [taylor]: Taking taylor expansion of -1 in x
0.165 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.165 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.165 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.165 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.165 * [taylor]: Taking taylor expansion of y in x
0.165 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.165 * [taylor]: Taking taylor expansion of x in x
0.166 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.166 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.166 * [taylor]: Taking taylor expansion of y in x
0.166 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.166 * [taylor]: Taking taylor expansion of x in x
0.166 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.166 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.166 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.166 * [taylor]: Taking taylor expansion of x in x
0.167 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.167 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.167 * [taylor]: Taking taylor expansion of y in x
0.168 * [taylor]: Taking taylor expansion of 1 in y
0.171 * [taylor]: Taking taylor expansion of 0 in y
0.176 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
0.176 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.176 * [taylor]: Taking taylor expansion of 2 in y
0.176 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.176 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.176 * [taylor]: Taking taylor expansion of y in y
0.185 * [taylor]: Taking taylor expansion of 0 in y
0.185 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
0.185 * [approximate]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in (x y) around 0
0.185 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
0.185 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.185 * [taylor]: Taking taylor expansion of x in y
0.185 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.185 * [taylor]: Taking taylor expansion of y in y
0.185 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.185 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.185 * [taylor]: Taking taylor expansion of x in x
0.185 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.185 * [taylor]: Taking taylor expansion of y in x
0.185 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.185 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.185 * [taylor]: Taking taylor expansion of x in x
0.185 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.185 * [taylor]: Taking taylor expansion of y in x
0.185 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.185 * [taylor]: Taking taylor expansion of y in y
0.186 * [taylor]: Taking taylor expansion of 0 in y
0.186 * [taylor]: Taking taylor expansion of 1 in y
0.188 * [taylor]: Taking taylor expansion of 0 in y
0.190 * [taylor]: Taking taylor expansion of 0 in y
0.190 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.190 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.190 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.190 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.190 * [taylor]: Taking taylor expansion of x in y
0.190 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.190 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.190 * [taylor]: Taking taylor expansion of y in y
0.191 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.191 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.191 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.191 * [taylor]: Taking taylor expansion of x in x
0.191 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.191 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.191 * [taylor]: Taking taylor expansion of y in x
0.191 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.191 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.192 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.192 * [taylor]: Taking taylor expansion of x in x
0.192 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.192 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.192 * [taylor]: Taking taylor expansion of y in x
0.193 * [taylor]: Taking taylor expansion of 1 in y
0.194 * [taylor]: Taking taylor expansion of 0 in y
0.195 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.195 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.195 * [taylor]: Taking taylor expansion of y in y
0.197 * [taylor]: Taking taylor expansion of 0 in y
0.199 * [taylor]: Taking taylor expansion of 0 in y
0.201 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
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 (pow x 2)) (/ 1 (pow y 2))) in x
0.202 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.202 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.202 * [taylor]: Taking taylor expansion of x in x
0.202 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.202 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.202 * [taylor]: Taking taylor expansion of y in x
0.202 * [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
0.203 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.203 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.203 * [taylor]: Taking taylor expansion of y in x
0.203 * [taylor]: Taking taylor expansion of 1 in y
0.205 * [taylor]: Taking taylor expansion of 0 in y
0.206 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.206 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.206 * [taylor]: Taking taylor expansion of y in y
0.208 * [taylor]: Taking taylor expansion of 0 in y
0.210 * [taylor]: Taking taylor expansion of 0 in y
0.212 * * * [progress]: simplifying candidates
0.213 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (log1p (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (- (+ (log (- x y)) (log (+ x y))) (log (+ (* x x) (* y y))))
  (- (log (* (- x y) (+ x y))) (log (+ (* x x) (* y y))))
  (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (exp (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (/ (* (* (* (- x y) (- x y)) (- x y)) (* (* (+ x y) (+ x y)) (+ x y))) (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y))))
  (/ (* (* (* (- x y) (+ x y)) (* (- x y) (+ x y))) (* (- x y) (+ x y))) (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y))))
  (* (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))) (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))))
  (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (* (* (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (- (* (- x y) (+ x y)))
  (- (+ (* x x) (* y y)))
  (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (+ x y) (cbrt (+ (* x x) (* y y))))
  (/ (- x y) (sqrt (+ (* x x) (* y y))))
  (/ (+ x y) (sqrt (+ (* x x) (* y y))))
  (/ (- x y) 1)
  (/ (+ x y) (+ (* x x) (* y y)))
  (/ 1 (+ (* x x) (* y y)))
  (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))
  (/ (* (- x y) (+ x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (* (- x y) (+ x y)) (sqrt (+ (* x x) (* y y))))
  (/ (* (- x y) (+ x y)) 1)
  (/ (+ (* x x) (* y y)) (+ x y))
  (/ (* (- x y) (+ x y)) (+ (pow (* x x) 3) (pow (* y y) 3)))
  (/ (* (- x y) (+ x y)) (- (* (* x x) (* x x)) (* (* y y) (* y y))))
  (* (+ (* x x) (* y y)) (* (+ (* x x) (+ (* y y) (* x y))) (+ (* x x) (- (* y y) (* x y)))))
  (* (+ (* x x) (* y y)) (* (+ (* x x) (+ (* y y) (* x y))) (- x y)))
  (* (+ (* x x) (* y y)) (* (+ x y) (+ (* x x) (- (* y y) (* x y)))))
  (* (+ (* x x) (* y y)) (* (+ x y) (- x y)))
  (* (+ (* x x) (* y y)) (+ (* x x) (- (* y 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))
  (expm1 (+ (* x x) (* y y)))
  (log1p (+ (* 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))))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (- (* x x) (* y y))
  -1
  1
  1
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
0.217 * * [simplify]: iteration  0 :  322  enodes  (cost  380 )
0.224 * * [simplify]: iteration  1 :  1875  enodes  (cost  324 )
0.255 * * [simplify]: iteration  2 :  5001  enodes  (cost  308 )
0.259 * [simplify]: Simplified to:
   (expm1 (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (log1p (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (pow (exp (/ (- x y) (fma x x (* y y)))) (+ x y))
  (pow (/ (+ x y) (/ (fma x x (* y y)) (- x y))) 3)
  (pow (/ (+ x y) (/ (fma x x (* y y)) (- x y))) 3)
  (* (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))) (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))))
  (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (pow (/ (+ x y) (/ (fma x x (* y y)) (- x y))) 3)
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (- (pow y 2) (pow x 2))
  (- (+ (* x x) (* y y)))
  (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (+ x y) (cbrt (+ (* x x) (* y y))))
  (/ (- x y) (hypot x y))
  (/ (+ x y) (sqrt (+ (* x x) (* y y))))
  (- x y)
  (/ (+ x y) (+ (* x x) (* y y)))
  (/ 1 (+ (* x x) (* y y)))
  (/ (/ (fma x x (* y y)) (- x y)) (+ x y))
  (/ (* (- x y) (+ x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- x y) (/ (hypot x y) (+ x y)))
  (* (- x y) (+ x y))
  (/ (+ (* x x) (* y y)) (+ x y))
  (* (/ (+ x y) (fma (* (pow y 4) y) y (pow x 6))) (- x y))
  (/ 1 (+ (* x x) (* y y)))
  (* (fma y (- y x) (pow x 2)) (* (fma x x (fma y y (* x y))) (fma x x (* y y))))
  (* (* (- x y) (fma x x (fma y y (* x y)))) (fma x x (* y y)))
  (* (fma y (- y x) (pow x 2)) (* (+ x y) (fma x x (* y y))))
  (fma (- (pow y 3)) y (pow x 4))
  (* (fma x x (- (* y y) (* x y))) (fma x x (* y y)))
  (* (- x y) (fma x x (* y y)))
  (* (fma x x (fma y y (* x y))) (fma x x (* y y)))
  (* (+ x y) (fma x x (* y y)))
  (expm1 (+ (* x x) (* y y)))
  (log1p (+ (* x x) (* y y)))
  (exp (+ (* x x) (* y y)))
  (log (* (fma x x (* y y)) 1))
  (exp (+ (* x x) (* y y)))
  (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))
  (cbrt (+ (* x x) (* y y)))
  (pow (fma x x (* y y)) 3)
  (hypot x y)
  (hypot x y)
  (fma (* (pow y 4) y) y (pow x 6))
  (fma (fma y y (* x y)) (* y (- y x)) (pow x 4))
  (fma (- (pow y 3)) y (pow x 4))
  (* (- x y) (+ x y))
  -1
  1
  1
  (fma x x (* y y))
  (fma x x (* y y))
  (fma x x (* y y))
0.259 * * * [progress]: adding candidates to table
0.381 * * [progress]: iteration 2 / 4
0.381 * * * [progress]: picking best candidate
0.383 * * * * [pick]: Picked  #<alt (λ (x y) -1)>
0.383 * * * [progress]: localizing error
0.383 * * * [progress]: generating rewritten candidates
0.383 * * * [progress]: generating series expansions
0.383 * * * [progress]: simplifying candidates
0.384 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.386 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.386 * [simplify]: Simplified to:
   
0.386 * * * [progress]: adding candidates to table
0.386 * * [progress]: iteration 3 / 4
0.386 * * * [progress]: picking best candidate
0.387 * * * * [pick]: Picked  #<alt (λ (x y) 1)>
0.387 * * * [progress]: localizing error
0.387 * * * [progress]: generating rewritten candidates
0.387 * * * [progress]: generating series expansions
0.388 * * * [progress]: simplifying candidates
0.388 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.390 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.390 * [simplify]: Simplified to:
   
0.390 * * * [progress]: adding candidates to table
0.390 * [progress]: [Phase 3 of 3] Extracting.
0.390 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))> #<alt (λ (x y) -1)>)
0.391 * * * [regime-changes]: Trying 3 branch expressions: ((/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) y x)
0.391 * * * * [regimes]: Trying to branch on (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) from (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))> #<alt (λ (x y) -1)>)
0.403 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))> #<alt (λ (x y) -1)>)
0.431 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))> #<alt (λ (x y) -1)>)
0.457 * * * [regime]: Found split indices: #<option (#s(si 2 50) #s(si 1 127) #s(si 0 210) #s(si 1 255))>
0.458 * [binary-search]: Improving bounds with binary search for y and (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))> #<alt (λ (x y) -1)>)
0.539 * [regimes]: Found splitpoints: (#s(sp 2 y -1.3404988451868662e+154) #s(sp 1 y -5.692859475155119e-160) #s(sp 0 y 1.2490407105203886e-166) #s(sp 1 y +nan.0)) , with alts (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))> #<alt (λ (x y) -1)>)
0.539 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (if (<= y -1.3404988451868662e+154) -1 (if (<= y -5.692859475155119e-160) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) (if (<= y 1.2490407105203886e-166) 1 (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))))
0.540 * * [simplify]: iteration  0 :  28  enodes  (cost  14 )
0.540 * * [simplify]: iteration  1 :  28  enodes  (cost  14 )
0.541 * [simplify]: Simplified to:
   (if (<= y -1.3404988451868662e+154) -1 (if (<= y -5.692859475155119e-160) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) (if (<= y 1.2490407105203886e-166) 1 (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))))
1.099 * [regime-testing]: Baseline error score: 21.67526977499311
1.099 * [regime-testing]: Oracle error score: 0.5104397398468518
1.100 * [regime-testing]: End program error score: 4.9621611787684134
1.130 * [regime-testing]: Target error score: 0.03416028566521537