20.478 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.069 * * * [progress]: [2/2] Setting up program.
0.071 * [progress]: [Phase 2 of 3] Improving.
0.072 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- x (* y y))
0.074 * * [simplify]: iteration  0 :  4  enodes  (cost  5 )
0.074 * * [simplify]: iteration  1 :  4  enodes  (cost  5 )
0.075 * [simplify]: Simplified to:
   (- x (* y y))
0.075 * * [progress]: iteration 1 / 4
0.075 * * * [progress]: picking best candidate
0.077 * * * * [pick]: Picked  #<alt (λ (x y) (- x (* y y)))>
0.077 * * * [progress]: localizing error
0.081 * * * [progress]: generating rewritten candidates
0.081 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.084 * * * [progress]: generating series expansions
0.084 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.085 * [approximate]: Taking taylor expansion of (- x (pow y 2)) in (x y) around 0
0.085 * [taylor]: Taking taylor expansion of (- x (pow y 2)) in y
0.085 * [taylor]: Taking taylor expansion of x in y
0.085 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.085 * [taylor]: Taking taylor expansion of y in y
0.085 * [taylor]: Taking taylor expansion of (- x (pow y 2)) in x
0.085 * [taylor]: Taking taylor expansion of x in x
0.085 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.085 * [taylor]: Taking taylor expansion of y in x
0.085 * [taylor]: Taking taylor expansion of (- x (pow y 2)) in x
0.085 * [taylor]: Taking taylor expansion of x in x
0.085 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.085 * [taylor]: Taking taylor expansion of y in x
0.085 * [taylor]: Taking taylor expansion of (neg (pow y 2)) in y
0.085 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.085 * [taylor]: Taking taylor expansion of y in y
0.085 * [taylor]: Taking taylor expansion of 1 in y
0.085 * [taylor]: Taking taylor expansion of 0 in y
0.085 * [taylor]: Taking taylor expansion of 0 in y
0.086 * [taylor]: Taking taylor expansion of 0 in y
0.086 * [approximate]: Taking taylor expansion of (- (/ 1 x) (/ 1 (pow y 2))) in (x y) around 0
0.086 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 (pow y 2))) in y
0.086 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.086 * [taylor]: Taking taylor expansion of x in y
0.086 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.086 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.086 * [taylor]: Taking taylor expansion of y in y
0.086 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 (pow y 2))) in x
0.086 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.086 * [taylor]: Taking taylor expansion of x in x
0.086 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.086 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.086 * [taylor]: Taking taylor expansion of y in x
0.086 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 (pow y 2))) in x
0.086 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.086 * [taylor]: Taking taylor expansion of x in x
0.086 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.086 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.086 * [taylor]: Taking taylor expansion of y in x
0.086 * [taylor]: Taking taylor expansion of 1 in y
0.087 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 2))) in y
0.087 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.087 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.087 * [taylor]: Taking taylor expansion of y in y
0.087 * [taylor]: Taking taylor expansion of 0 in y
0.087 * [taylor]: Taking taylor expansion of 0 in y
0.088 * [taylor]: Taking taylor expansion of 0 in y
0.088 * [taylor]: Taking taylor expansion of 0 in y
0.089 * [approximate]: Taking taylor expansion of (neg (+ (/ 1 (pow y 2)) (/ 1 x))) in (x y) around 0
0.089 * [taylor]: Taking taylor expansion of (neg (+ (/ 1 (pow y 2)) (/ 1 x))) in y
0.089 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow y 2)) (/ 1 x)) in y
0.089 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.089 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.089 * [taylor]: Taking taylor expansion of y in y
0.089 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.089 * [taylor]: Taking taylor expansion of x in y
0.089 * [taylor]: Taking taylor expansion of (neg (+ (/ 1 (pow y 2)) (/ 1 x))) in x
0.089 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow y 2)) (/ 1 x)) in x
0.089 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.089 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.089 * [taylor]: Taking taylor expansion of y in x
0.089 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.089 * [taylor]: Taking taylor expansion of x in x
0.089 * [taylor]: Taking taylor expansion of (neg (+ (/ 1 (pow y 2)) (/ 1 x))) in x
0.089 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow y 2)) (/ 1 x)) in x
0.089 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.089 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.089 * [taylor]: Taking taylor expansion of y in x
0.089 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.089 * [taylor]: Taking taylor expansion of x in x
0.089 * [taylor]: Taking taylor expansion of (neg 1) in y
0.089 * [taylor]: Taking taylor expansion of 1 in y
0.090 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 2))) in y
0.090 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.090 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.090 * [taylor]: Taking taylor expansion of y in y
0.090 * [taylor]: Taking taylor expansion of 0 in y
0.090 * [taylor]: Taking taylor expansion of 0 in y
0.091 * [taylor]: Taking taylor expansion of 0 in y
0.091 * [taylor]: Taking taylor expansion of 0 in y
0.092 * * * [progress]: simplifying candidates
0.092 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (exp x) (exp (* y y)))
  (log (- x (* y y)))
  (exp (- x (* y y)))
  (* (cbrt (- x (* y y))) (cbrt (- x (* y y))))
  (cbrt (- x (* y y)))
  (* (* (- x (* y y)) (- x (* y y))) (- x (* y y)))
  (sqrt (- x (* y y)))
  (sqrt (- x (* y y)))
  (- (pow x 3) (pow (* y y) 3))
  (+ (* x x) (+ (* (* y y) (* y y)) (* x (* y y))))
  (neg (* y y))
  (- (* x x) (* (* y y) (* y y)))
  (+ x (* y y))
  (+ (sqrt x) y)
  (- (sqrt x) y)
  (- x (pow y 2))
  (- x (pow y 2))
  (- x (pow y 2))
0.129 * * [simplify]: iteration  0 :  4895  enodes  (cost  113 )
0.129 * * [simplify]: iteration  1 :  4895  enodes  (cost  113 )
0.130 * [simplify]: Simplified to:
   (exp (- x (* y y)))
  (log (- x (* y y)))
  (exp (- x (* y y)))
  (* (cbrt (- x (* y y))) (cbrt (- x (* y y))))
  (cbrt (- x (* y y)))
  (pow (- x (* y y)) 3)
  (sqrt (- x (* y y)))
  (sqrt (- x (* y y)))
  (- (pow x 3) (pow y 6))
  (+ (pow y 4) (* x (+ x (* y y))))
  (* y (neg y))
  (- (* x x) (pow y 4))
  (+ x (* y y))
  (+ y (sqrt x))
  (- (sqrt x) y)
  (- x (* y y))
  (- x (* y y))
  (- x (* y y))
0.130 * * * [progress]: adding candidates to table
0.147 * * [progress]: iteration 2 / 4
0.147 * * * [progress]: picking best candidate
0.150 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- (* x x) (pow y 4)) (+ x (* y y))))>
0.150 * * * [progress]: localizing error
0.158 * * * [progress]: generating rewritten candidates
0.158 * * * * [progress]: [ 1 / 3 ] rewriting at (2)
0.169 * * * * [progress]: [ 2 / 3 ] rewriting at (2 1)
0.174 * * * * [progress]: [ 3 / 3 ] rewriting at (2 2)
0.180 * * * [progress]: generating series expansions
0.180 * * * * [progress]: [ 1 / 3 ] generating series at (2)
0.180 * [approximate]: Taking taylor expansion of (/ (- (pow x 2) (pow y 4)) (+ x (pow y 2))) in (x y) around 0
0.180 * [taylor]: Taking taylor expansion of (/ (- (pow x 2) (pow y 4)) (+ x (pow y 2))) in y
0.180 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 4)) in y
0.180 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.180 * [taylor]: Taking taylor expansion of x in y
0.180 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.181 * [taylor]: Taking taylor expansion of y in y
0.181 * [taylor]: Taking taylor expansion of (+ x (pow y 2)) in y
0.181 * [taylor]: Taking taylor expansion of x in y
0.181 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.181 * [taylor]: Taking taylor expansion of y in y
0.181 * [taylor]: Taking taylor expansion of (/ (- (pow x 2) (pow y 4)) (+ x (pow y 2))) in x
0.181 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 4)) in x
0.181 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.181 * [taylor]: Taking taylor expansion of x in x
0.181 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.181 * [taylor]: Taking taylor expansion of y in x
0.181 * [taylor]: Taking taylor expansion of (+ x (pow y 2)) in x
0.181 * [taylor]: Taking taylor expansion of x in x
0.181 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.181 * [taylor]: Taking taylor expansion of y in x
0.181 * [taylor]: Taking taylor expansion of (/ (- (pow x 2) (pow y 4)) (+ x (pow y 2))) in x
0.181 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 4)) in x
0.181 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.181 * [taylor]: Taking taylor expansion of x in x
0.181 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.182 * [taylor]: Taking taylor expansion of y in x
0.182 * [taylor]: Taking taylor expansion of (+ x (pow y 2)) in x
0.182 * [taylor]: Taking taylor expansion of x in x
0.182 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.182 * [taylor]: Taking taylor expansion of y in x
0.182 * [taylor]: Taking taylor expansion of (* -1 (pow y 2)) in y
0.182 * [taylor]: Taking taylor expansion of -1 in y
0.182 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.182 * [taylor]: Taking taylor expansion of y in y
0.182 * [taylor]: Taking taylor expansion of 1 in y
0.183 * [taylor]: Taking taylor expansion of 0 in y
0.184 * [taylor]: Taking taylor expansion of 0 in y
0.184 * [taylor]: Taking taylor expansion of 0 in y
0.185 * [approximate]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) (+ (/ 1 (pow y 2)) (/ 1 x))) in (x y) around 0
0.185 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) (+ (/ 1 (pow y 2)) (/ 1 x))) in y
0.185 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) in y
0.185 * [taylor]: Taking taylor expansion of (/ 1 (pow x 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 (/ 1 (pow y 4)) in y
0.185 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.185 * [taylor]: Taking taylor expansion of y in y
0.185 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow y 2)) (/ 1 x)) in y
0.185 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) 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 (/ 1 x) in y
0.185 * [taylor]: Taking taylor expansion of x in y
0.185 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) (+ (/ 1 (pow y 2)) (/ 1 x))) in x
0.185 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) in x
0.185 * [taylor]: Taking taylor expansion of (/ 1 (pow x 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
0.186 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.186 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.186 * [taylor]: Taking taylor expansion of y in x
0.186 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow y 2)) (/ 1 x)) in x
0.186 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.186 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.186 * [taylor]: Taking taylor expansion of y in x
0.186 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.186 * [taylor]: Taking taylor expansion of x in x
0.186 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) (+ (/ 1 (pow y 2)) (/ 1 x))) in x
0.186 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) in x
0.186 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.186 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.186 * [taylor]: Taking taylor expansion of x in x
0.186 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.186 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.186 * [taylor]: Taking taylor expansion of y in x
0.186 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow y 2)) (/ 1 x)) in x
0.186 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.186 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.186 * [taylor]: Taking taylor expansion of y in x
0.186 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.186 * [taylor]: Taking taylor expansion of x in x
0.187 * [taylor]: Taking taylor expansion of 1 in y
0.187 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 2))) in y
0.187 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.187 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.187 * [taylor]: Taking taylor expansion of y in y
0.188 * [taylor]: Taking taylor expansion of 0 in y
0.189 * [taylor]: Taking taylor expansion of 0 in y
0.190 * [taylor]: Taking taylor expansion of 0 in y
0.191 * [taylor]: Taking taylor expansion of 0 in y
0.191 * [approximate]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) (- (/ 1 (pow y 2)) (/ 1 x))) in (x y) around 0
0.191 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) (- (/ 1 (pow y 2)) (/ 1 x))) in y
0.192 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) in y
0.192 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.192 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.192 * [taylor]: Taking taylor expansion of x in y
0.192 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.192 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.192 * [taylor]: Taking taylor expansion of y in y
0.192 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2)) (/ 1 x)) in y
0.192 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.192 * [taylor]: Taking taylor expansion of (pow y 2) 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 (pow x 2)) (/ 1 (pow y 4))) (- (/ 1 (pow y 2)) (/ 1 x))) in x
0.192 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) in x
0.192 * [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 4)) in x
0.192 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.192 * [taylor]: Taking taylor expansion of y in x
0.192 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2)) (/ 1 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
0.192 * [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 (pow x 2)) (/ 1 (pow y 4))) (- (/ 1 (pow y 2)) (/ 1 x))) in x
0.192 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) in x
0.193 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.193 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.193 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.193 * [taylor]: Taking taylor expansion of y in x
0.193 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2)) (/ 1 x)) in x
0.193 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.193 * [taylor]: Taking taylor expansion of (pow y 2) 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 (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
0.195 * [taylor]: Taking taylor expansion of 0 in y
0.196 * [taylor]: Taking taylor expansion of 0 in y
0.198 * [taylor]: Taking taylor expansion of 0 in y
0.198 * * * * [progress]: [ 2 / 3 ] generating series at (2 1)
0.198 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 4)) in (x y) around 0
0.198 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 4)) in y
0.198 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.198 * [taylor]: Taking taylor expansion of x in y
0.198 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.198 * [taylor]: Taking taylor expansion of y in y
0.198 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 4)) in x
0.198 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.198 * [taylor]: Taking taylor expansion of x in x
0.198 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.198 * [taylor]: Taking taylor expansion of y in x
0.198 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 4)) in x
0.198 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.198 * [taylor]: Taking taylor expansion of x in x
0.198 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.198 * [taylor]: Taking taylor expansion of y in x
0.199 * [taylor]: Taking taylor expansion of (neg (pow y 4)) in y
0.199 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.199 * [taylor]: Taking taylor expansion of y in y
0.199 * [taylor]: Taking taylor expansion of 0 in y
0.199 * [taylor]: Taking taylor expansion of 1 in y
0.199 * [taylor]: Taking taylor expansion of 0 in y
0.200 * [taylor]: Taking taylor expansion of 0 in y
0.200 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) in (x y) around 0
0.200 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) in y
0.200 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.200 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.200 * [taylor]: Taking taylor expansion of x in y
0.200 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.200 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.200 * [taylor]: Taking taylor expansion of y in y
0.200 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) in x
0.200 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.200 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.200 * [taylor]: Taking taylor expansion of x in x
0.200 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.200 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.200 * [taylor]: Taking taylor expansion of y in x
0.200 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) in x
0.200 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.200 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.200 * [taylor]: Taking taylor expansion of x in x
0.200 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.200 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.200 * [taylor]: Taking taylor expansion of y in x
0.201 * [taylor]: Taking taylor expansion of 1 in y
0.201 * [taylor]: Taking taylor expansion of 0 in y
0.201 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 4))) in y
0.201 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.201 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.201 * [taylor]: Taking taylor expansion of y in y
0.201 * [taylor]: Taking taylor expansion of 0 in y
0.202 * [taylor]: Taking taylor expansion of 0 in y
0.203 * [taylor]: Taking taylor expansion of 0 in y
0.204 * [taylor]: Taking taylor expansion of 0 in y
0.204 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) in (x y) around 0
0.204 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) in y
0.204 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.204 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.204 * [taylor]: Taking taylor expansion of x in y
0.204 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.204 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.204 * [taylor]: Taking taylor expansion of y in y
0.205 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) 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 4)) in x
0.205 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.205 * [taylor]: Taking taylor expansion of y in x
0.205 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 4))) 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 4)) in x
0.205 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.205 * [taylor]: Taking taylor expansion of y in x
0.205 * [taylor]: Taking taylor expansion of 1 in y
0.205 * [taylor]: Taking taylor expansion of 0 in y
0.205 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 4))) in y
0.206 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.206 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.206 * [taylor]: Taking taylor expansion of y in y
0.206 * [taylor]: Taking taylor expansion of 0 in y
0.207 * [taylor]: Taking taylor expansion of 0 in y
0.207 * [taylor]: Taking taylor expansion of 0 in y
0.208 * [taylor]: Taking taylor expansion of 0 in y
0.209 * * * * [progress]: [ 3 / 3 ] generating series at (2 2)
0.209 * [approximate]: Taking taylor expansion of (+ x (pow y 2)) in (x y) around 0
0.209 * [taylor]: Taking taylor expansion of (+ x (pow y 2)) in y
0.209 * [taylor]: Taking taylor expansion of x in y
0.209 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.209 * [taylor]: Taking taylor expansion of y in y
0.209 * [taylor]: Taking taylor expansion of (+ x (pow y 2)) in x
0.209 * [taylor]: Taking taylor expansion of x in x
0.209 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.209 * [taylor]: Taking taylor expansion of y in x
0.209 * [taylor]: Taking taylor expansion of (+ x (pow y 2)) in x
0.209 * [taylor]: Taking taylor expansion of x in x
0.209 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.209 * [taylor]: Taking taylor expansion of y in x
0.209 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.209 * [taylor]: Taking taylor expansion of y in y
0.209 * [taylor]: Taking taylor expansion of 1 in y
0.209 * [taylor]: Taking taylor expansion of 0 in y
0.209 * [taylor]: Taking taylor expansion of 0 in y
0.209 * [taylor]: Taking taylor expansion of 0 in y
0.210 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow y 2)) (/ 1 x)) in (x y) around 0
0.210 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow y 2)) (/ 1 x)) in y
0.210 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.210 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.210 * [taylor]: Taking taylor expansion of y in y
0.210 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.210 * [taylor]: Taking taylor expansion of x in y
0.210 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow y 2)) (/ 1 x)) in x
0.210 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.210 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.210 * [taylor]: Taking taylor expansion of y in x
0.210 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.210 * [taylor]: Taking taylor expansion of x in x
0.210 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow y 2)) (/ 1 x)) in x
0.210 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.210 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.210 * [taylor]: Taking taylor expansion of y in x
0.210 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.210 * [taylor]: Taking taylor expansion of x in x
0.210 * [taylor]: Taking taylor expansion of 1 in y
0.210 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.210 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.210 * [taylor]: Taking taylor expansion of y in y
0.211 * [taylor]: Taking taylor expansion of 0 in y
0.211 * [taylor]: Taking taylor expansion of 0 in y
0.211 * [taylor]: Taking taylor expansion of 0 in y
0.212 * [taylor]: Taking taylor expansion of 0 in y
0.212 * [approximate]: Taking taylor expansion of (- (/ 1 (pow y 2)) (/ 1 x)) in (x y) around 0
0.212 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2)) (/ 1 x)) in y
0.212 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.212 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.212 * [taylor]: Taking taylor expansion of y in y
0.212 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.212 * [taylor]: Taking taylor expansion of x in y
0.212 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2)) (/ 1 x)) in x
0.213 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.213 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.213 * [taylor]: Taking taylor expansion of y in x
0.213 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.213 * [taylor]: Taking taylor expansion of x in x
0.213 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2)) (/ 1 x)) in x
0.213 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.213 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.213 * [taylor]: Taking taylor expansion of y in x
0.213 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.213 * [taylor]: Taking taylor expansion of x in x
0.213 * [taylor]: Taking taylor expansion of (neg 1) in y
0.213 * [taylor]: Taking taylor expansion of 1 in y
0.213 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.213 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.213 * [taylor]: Taking taylor expansion of y in y
0.213 * [taylor]: Taking taylor expansion of 0 in y
0.214 * [taylor]: Taking taylor expansion of 0 in y
0.214 * [taylor]: Taking taylor expansion of 0 in y
0.215 * [taylor]: Taking taylor expansion of 0 in y
0.215 * * * [progress]: simplifying candidates
0.216 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (log (- (* x x) (pow y 4))) (log (+ x (* y y))))
  (log (/ (- (* x x) (pow y 4)) (+ x (* y y))))
  (exp (/ (- (* x x) (pow y 4)) (+ x (* y y))))
  (/ (* (* (- (* x x) (pow y 4)) (- (* x x) (pow y 4))) (- (* x x) (pow y 4))) (* (* (+ x (* y y)) (+ x (* y y))) (+ x (* y y))))
  (* (cbrt (/ (- (* x x) (pow y 4)) (+ x (* y y)))) (cbrt (/ (- (* x x) (pow y 4)) (+ x (* y y)))))
  (cbrt (/ (- (* x x) (pow y 4)) (+ x (* y y))))
  (* (* (/ (- (* x x) (pow y 4)) (+ x (* y y))) (/ (- (* x x) (pow y 4)) (+ x (* y y)))) (/ (- (* x x) (pow y 4)) (+ x (* y y))))
  (sqrt (/ (- (* x x) (pow y 4)) (+ x (* y y))))
  (sqrt (/ (- (* x x) (pow y 4)) (+ x (* y y))))
  (neg (- (* x x) (pow y 4)))
  (neg (+ x (* y y)))
  (/ (* x x) (+ x (* y y)))
  (/ (pow y 4) (+ x (* y y)))
  (/ (* (cbrt (- (* x x) (pow y 4))) (cbrt (- (* x x) (pow y 4)))) (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (cbrt (- (* x x) (pow y 4))) (cbrt (+ x (* y y))))
  (/ (* (cbrt (- (* x x) (pow y 4))) (cbrt (- (* x x) (pow y 4)))) (sqrt (+ x (* y y))))
  (/ (cbrt (- (* x x) (pow y 4))) (sqrt (+ x (* y y))))
  (/ (* (cbrt (- (* x x) (pow y 4))) (cbrt (- (* x x) (pow y 4)))) 1)
  (/ (cbrt (- (* x x) (pow y 4))) (+ x (* y y)))
  (/ (sqrt (- (* x x) (pow y 4))) (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (sqrt (- (* x x) (pow y 4))) (cbrt (+ x (* y y))))
  (/ (sqrt (- (* x x) (pow y 4))) (sqrt (+ x (* y y))))
  (/ (sqrt (- (* x x) (pow y 4))) (sqrt (+ x (* y y))))
  (/ (sqrt (- (* x x) (pow y 4))) 1)
  (/ (sqrt (- (* x x) (pow y 4))) (+ x (* y y)))
  (/ 1 (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (- (* x x) (pow y 4)) (cbrt (+ x (* y y))))
  (/ 1 (sqrt (+ x (* y y))))
  (/ (- (* x x) (pow y 4)) (sqrt (+ x (* y y))))
  (/ 1 1)
  (/ (- (* x x) (pow y 4)) (+ x (* y y)))
  (/ (+ x (pow (sqrt y) 4)) (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (- x (pow (sqrt y) 4)) (cbrt (+ x (* y y))))
  (/ (+ x (pow (sqrt y) 4)) (sqrt (+ x (* y y))))
  (/ (- x (pow (sqrt y) 4)) (sqrt (+ x (* y y))))
  (/ (+ x (pow (sqrt y) 4)) 1)
  (/ (- x (pow (sqrt y) 4)) (+ x (* y y)))
  (/ (+ x (sqrt (pow y 4))) (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (- x (sqrt (pow y 4))) (cbrt (+ x (* y y))))
  (/ (+ x (sqrt (pow y 4))) (sqrt (+ x (* y y))))
  (/ (- x (sqrt (pow y 4))) (sqrt (+ x (* y y))))
  (/ (+ x (sqrt (pow y 4))) 1)
  (/ (- x (sqrt (pow y 4))) (+ x (* y y)))
  (/ (+ x (pow y (/ 4 2))) (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (- x (pow y (/ 4 2))) (cbrt (+ x (* y y))))
  (/ (+ x (pow y (/ 4 2))) (sqrt (+ x (* y y))))
  (/ (- x (pow y (/ 4 2))) (sqrt (+ x (* y y))))
  (/ (+ x (pow y (/ 4 2))) 1)
  (/ (- x (pow y (/ 4 2))) (+ x (* y y)))
  (/ 1 (+ x (* y y)))
  (/ (+ x (* y y)) (- (* x x) (pow y 4)))
  (/ (- (* x x) (pow y 4)) (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (- (* x x) (pow y 4)) (sqrt (+ x (* y y))))
  (/ (- (* x x) (pow y 4)) 1)
  (/ (+ x (* y y)) (cbrt (- (* x x) (pow y 4))))
  (/ (+ x (* y y)) (sqrt (- (* x x) (pow y 4))))
  (/ (+ x (* y y)) (- (* x x) (pow y 4)))
  (/ (+ x (* y y)) (- x (pow (sqrt y) 4)))
  (/ (+ x (* y y)) (- x (sqrt (pow y 4))))
  (/ (+ x (* y y)) (- x (pow y (/ 4 2))))
  (/ (- (* x x) (pow y 4)) (+ (pow x 3) (pow (* y y) 3)))
  (/ (- (* x x) (pow y 4)) (- (* x x) (* (* y y) (* y y))))
  (* (+ x (* y y)) (+ (* (* x x) (* x x)) (+ (* (pow y 4) (pow y 4)) (* (* x x) (pow y 4)))))
  (* (+ x (* y y)) (+ (* x x) (pow y 4)))
  (/ (exp (* x x)) (exp (pow y 4)))
  (log (- (* x x) (pow y 4)))
  (exp (- (* x x) (pow y 4)))
  (* (cbrt (- (* x x) (pow y 4))) (cbrt (- (* x x) (pow y 4))))
  (cbrt (- (* x x) (pow y 4)))
  (* (* (- (* x x) (pow y 4)) (- (* x x) (pow y 4))) (- (* x x) (pow y 4)))
  (sqrt (- (* x x) (pow y 4)))
  (sqrt (- (* x x) (pow y 4)))
  (- (pow (* x x) 3) (pow (pow y 4) 3))
  (+ (* (* x x) (* x x)) (+ (* (pow y 4) (pow y 4)) (* (* x x) (pow y 4))))
  (neg (pow y 4))
  (- (* (* x x) (* x x)) (* (pow y 4) (pow y 4)))
  (+ (* x x) (pow y 4))
  (+ x (pow (sqrt y) 4))
  (- x (pow (sqrt y) 4))
  (+ x (sqrt (pow y 4)))
  (- x (sqrt (pow y 4)))
  (+ x (pow y (/ 4 2)))
  (- x (pow y (/ 4 2)))
  (* (exp x) (exp (* y y)))
  (log (+ x (* y y)))
  (exp (+ x (* y y)))
  (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y))))
  (cbrt (+ x (* y y)))
  (* (* (+ x (* y y)) (+ x (* y y))) (+ x (* y y)))
  (sqrt (+ x (* y y)))
  (sqrt (+ x (* y y)))
  (+ (pow x 3) (pow (* y y) 3))
  (+ (* x x) (- (* (* y y) (* y y)) (* x (* y y))))
  (- (* x x) (* (* y y) (* y y)))
  (- x (* y y))
  (- x (pow y 2))
  (- x (pow y 2))
  (- x (pow y 2))
  (pow x 2)
  (- (pow x 2) (pow y 4))
  (- (pow x 2) (pow y 4))
  (+ x (pow y 2))
  (+ x (pow y 2))
  (+ x (pow y 2))
0.244 * * [simplify]: iteration  0 :  5074  enodes  (cost  1030 )
0.248 * [simplify]: Simplified to:
   (log (- x (* y y)))
  (log (- x (* y y)))
  (exp (- x (* y y)))
  (pow (- x (* y y)) 3)
  (* (cbrt (- x (* y y))) (cbrt (- x (* y y))))
  (cbrt (- x (* y y)))
  (pow (- x (* y y)) 3)
  (sqrt (- x (* y y)))
  (sqrt (- x (* y y)))
  (neg (- (* x x) (pow y 4)))
  (neg (+ x (* y y)))
  (* x (/ x (+ x (* y y))))
  (/ (pow y 4) (+ x (* y y)))
  (* (cbrt (- (* x x) (pow y 4))) (/ (cbrt (- (* x x) (pow y 4))) (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y))))))
  (/ (cbrt (- (* x x) (pow y 4))) (cbrt (+ x (* y y))))
  (* (cbrt (- (* x x) (pow y 4))) (/ (cbrt (- (* x x) (pow y 4))) (sqrt (+ x (* y y)))))
  (/ (cbrt (- (* x x) (pow y 4))) (sqrt (+ x (* y y))))
  (* (cbrt (- (* x x) (pow y 4))) (cbrt (- (* x x) (pow y 4))))
  (/ (cbrt (- (* x x) (pow y 4))) (+ x (* y y)))
  (/ (sqrt (- (* x x) (pow y 4))) (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (sqrt (- (* x x) (pow y 4))) (cbrt (+ x (* y y))))
  (/ (sqrt (- (* x x) (pow y 4))) (sqrt (+ x (* y y))))
  (/ (sqrt (- (* x x) (pow y 4))) (sqrt (+ x (* y y))))
  (sqrt (- (* x x) (pow y 4)))
  (/ (sqrt (- (* x x) (pow y 4))) (+ x (* y y)))
  (/ 1 (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (- (* x x) (pow y 4)) (cbrt (+ x (* y y))))
  (/ 1 (sqrt (+ x (* y y))))
  (/ (- (* x x) (pow y 4)) (sqrt (+ x (* y y))))
  1
  (- x (* y y))
  (/ (+ x (* y y)) (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (- x (* y y)) (cbrt (+ x (* y y))))
  (/ (+ x (* y y)) (sqrt (+ x (* y y))))
  (/ (- x (* y y)) (sqrt (+ x (* y y))))
  (+ x (* y y))
  (/ (- x (* y y)) (+ x (* y y)))
  (/ (+ x (sqrt (pow y 4))) (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (- x (sqrt (pow y 4))) (cbrt (+ x (* y y))))
  (/ (+ x (sqrt (pow y 4))) (sqrt (+ x (* y y))))
  (/ (- x (sqrt (pow y 4))) (sqrt (+ x (* y y))))
  (+ x (sqrt (pow y 4)))
  (/ (- x (sqrt (pow y 4))) (+ x (* y y)))
  (/ (+ x (* y y)) (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (- x (* y y)) (cbrt (+ x (* y y))))
  (/ (+ x (* y y)) (sqrt (+ x (* y y))))
  (/ (- x (* y y)) (sqrt (+ x (* y y))))
  (+ x (* y y))
  (/ (- x (* y y)) (+ x (* y y)))
  (/ 1 (+ x (* y y)))
  (/ 1 (- x (* y y)))
  (/ (- (* x x) (pow y 4)) (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y)))))
  (/ (- (* x x) (pow y 4)) (sqrt (+ x (* y y))))
  (- (* x x) (pow y 4))
  (/ (+ x (* y y)) (cbrt (- (* x x) (pow y 4))))
  (/ (+ x (* y y)) (sqrt (- (* x x) (pow y 4))))
  (/ 1 (- x (* y y)))
  (/ (+ x (* y y)) (- x (* y y)))
  (/ (+ x (* y y)) (- x (sqrt (pow y 4))))
  (/ (+ x (* y y)) (- x (* y y)))
  (/ (- (* x x) (pow y 4)) (+ (pow x 3) (pow y 6)))
  1
  (* (+ x (* y y)) (+ (pow x 4) (+ (pow y 8) (* x (* x (pow y 4))))))
  (* (+ x (* y y)) (+ (* x x) (pow y 4)))
  (exp (- (* x x) (pow y 4)))
  (log (- (* x x) (pow y 4)))
  (exp (- (* x x) (pow y 4)))
  (* (cbrt (- (* x x) (pow y 4))) (cbrt (- (* x x) (pow y 4))))
  (cbrt (- (* x x) (pow y 4)))
  (pow (- (* x x) (pow y 4)) 3)
  (sqrt (- (* x x) (pow y 4)))
  (sqrt (- (* x x) (pow y 4)))
  (- (pow x 6) (pow y 12))
  (+ (pow x 4) (+ (pow y 8) (* x (* x (pow y 4)))))
  (neg (pow y 4))
  (- (pow x 4) (pow y 8))
  (+ (* x x) (pow y 4))
  (+ x (* y y))
  (- x (* y y))
  (+ x (sqrt (pow y 4)))
  (- x (sqrt (pow y 4)))
  (+ x (* y y))
  (- x (* y y))
  (exp (+ x (* y y)))
  (log (+ x (* y y)))
  (exp (+ x (* y y)))
  (* (cbrt (+ x (* y y))) (cbrt (+ x (* y y))))
  (cbrt (+ x (* y y)))
  (pow (+ x (* y y)) 3)
  (sqrt (+ x (* y y)))
  (sqrt (+ x (* y y)))
  (+ (pow x 3) (pow y 6))
  (+ (pow y 4) (* x (- x (* y y))))
  (- (* x x) (pow y 4))
  (- x (* y y))
  (- x (* y y))
  (- x (* y y))
  (- x (* y y))
  (* x x)
  (- (* x x) (pow y 4))
  (- (* x x) (pow y 4))
  (+ x (* y y))
  (+ x (* y y))
  (+ x (* y y))
0.248 * * * [progress]: adding candidates to table
0.345 * [progress]: [Phase 3 of 3] Extracting.
0.345 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (- x (* y y)))> #<alt (λ (x y) (/ (- (* x x) (pow y 4)) (+ x (* y y))))>)
0.345 * * * [regime-changes]: Trying 4 branch expressions: ((* y y) (- x (* y y)) y x)
0.345 * * * * [regimes]: Trying to branch on (* y y) from (#<alt (λ (x y) (- x (* y y)))> #<alt (λ (x y) (/ (- (* x x) (pow y 4)) (+ x (* y y))))>)
0.378 * * * * [regimes]: Trying to branch on (- x (* y y)) from (#<alt (λ (x y) (- x (* y y)))> #<alt (λ (x y) (/ (- (* x x) (pow y 4)) (+ x (* y y))))>)
0.414 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (- x (* y y)))> #<alt (λ (x y) (/ (- (* x x) (pow y 4)) (+ x (* y y))))>)
0.448 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (- x (* y y)))> #<alt (λ (x y) (/ (- (* x x) (pow y 4)) (+ x (* y y))))>)
0.495 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.496 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- x (* y y))
0.497 * * [simplify]: iteration  0 :  4  enodes  (cost  5 )
0.497 * * [simplify]: iteration  1 :  4  enodes  (cost  5 )
0.497 * [simplify]: Simplified to:
   (- x (* y y))
1.125 * [regime-testing]: End program error score: 0.004250531316414552