15.073 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.015 * * * [progress]: [2/2] Setting up program.
0.016 * [progress]: [Phase 2 of 3] Improving.
0.017 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y)))
0.019 * * [simplify]: iteration  0 :  20  enodes  (cost  9 )
0.021 * * [simplify]: iteration  1 :  40  enodes  (cost  9 )
0.023 * * [simplify]: iteration  2 :  78  enodes  (cost  9 )
0.025 * * [simplify]: iteration  3 :  134  enodes  (cost  9 )
0.028 * * [simplify]: iteration  4 :  200  enodes  (cost  9 )
0.031 * * [simplify]: iteration  5 :  233  enodes  (cost  9 )
0.035 * * [simplify]: iteration  6 :  239  enodes  (cost  9 )
0.038 * * [simplify]: iteration  7 :  239  enodes  (cost  9 )
0.038 * [simplify]: Simplified to:
   (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y)))
0.038 * * [progress]: iteration 1 / 4
0.038 * * * [progress]: picking best candidate
0.040 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))))>
0.040 * * * [progress]: localizing error
0.049 * * * [progress]: generating rewritten candidates
0.049 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.063 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
0.069 * * * [progress]: generating series expansions
0.069 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.069 * [approximate]: Taking taylor expansion of (/ (- (pow x 2) (* 4.0 (pow y 2))) (+ (pow x 2) (* 4.0 (pow y 2)))) in (x y) around 0
0.069 * [taylor]: Taking taylor expansion of (/ (- (pow x 2) (* 4.0 (pow y 2))) (+ (pow x 2) (* 4.0 (pow y 2)))) in y
0.069 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (pow y 2))) in y
0.069 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.069 * [taylor]: Taking taylor expansion of x in y
0.070 * [taylor]: Taking taylor expansion of (* 4.0 (pow y 2)) in y
0.070 * [taylor]: Taking taylor expansion of 4.0 in y
0.070 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.070 * [taylor]: Taking taylor expansion of y in y
0.070 * [taylor]: Taking taylor expansion of (+ (pow x 2) (* 4.0 (pow y 2))) in y
0.070 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.070 * [taylor]: Taking taylor expansion of x in y
0.070 * [taylor]: Taking taylor expansion of (* 4.0 (pow y 2)) in y
0.070 * [taylor]: Taking taylor expansion of 4.0 in y
0.070 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.070 * [taylor]: Taking taylor expansion of y in y
0.070 * [taylor]: Taking taylor expansion of (/ (- (pow x 2) (* 4.0 (pow y 2))) (+ (pow x 2) (* 4.0 (pow y 2)))) in x
0.070 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (pow y 2))) in x
0.070 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.070 * [taylor]: Taking taylor expansion of x in x
0.070 * [taylor]: Taking taylor expansion of (* 4.0 (pow y 2)) in x
0.070 * [taylor]: Taking taylor expansion of 4.0 in x
0.070 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.070 * [taylor]: Taking taylor expansion of y in x
0.070 * [taylor]: Taking taylor expansion of (+ (pow x 2) (* 4.0 (pow y 2))) in x
0.070 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.070 * [taylor]: Taking taylor expansion of x in x
0.070 * [taylor]: Taking taylor expansion of (* 4.0 (pow y 2)) in x
0.070 * [taylor]: Taking taylor expansion of 4.0 in x
0.070 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.070 * [taylor]: Taking taylor expansion of y in x
0.071 * [taylor]: Taking taylor expansion of (/ (- (pow x 2) (* 4.0 (pow y 2))) (+ (pow x 2) (* 4.0 (pow y 2)))) in x
0.071 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (pow y 2))) in x
0.071 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.071 * [taylor]: Taking taylor expansion of x in x
0.071 * [taylor]: Taking taylor expansion of (* 4.0 (pow y 2)) in x
0.071 * [taylor]: Taking taylor expansion of 4.0 in x
0.071 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.071 * [taylor]: Taking taylor expansion of y in x
0.071 * [taylor]: Taking taylor expansion of (+ (pow x 2) (* 4.0 (pow y 2))) in x
0.071 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.071 * [taylor]: Taking taylor expansion of x in x
0.071 * [taylor]: Taking taylor expansion of (* 4.0 (pow y 2)) in x
0.071 * [taylor]: Taking taylor expansion of 4.0 in x
0.071 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.071 * [taylor]: Taking taylor expansion of y in x
0.072 * [taylor]: Taking taylor expansion of -1.0 in y
0.074 * [taylor]: Taking taylor expansion of 0 in y
0.077 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow y 2))) in y
0.077 * [taylor]: Taking taylor expansion of 0.5 in y
0.077 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.077 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.077 * [taylor]: Taking taylor expansion of y in y
0.085 * [taylor]: Taking taylor expansion of 0 in y
0.085 * [approximate]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2))))) in (x y) around 0
0.085 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2))))) in y
0.085 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in y
0.085 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.085 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.085 * [taylor]: Taking taylor expansion of x in y
0.086 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in y
0.086 * [taylor]: Taking taylor expansion of 4.0 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 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in y
0.086 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.086 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.086 * [taylor]: Taking taylor expansion of x in y
0.086 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in y
0.087 * [taylor]: Taking taylor expansion of 4.0 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
0.089 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2))))) in x
0.089 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in x
0.089 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.089 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.089 * [taylor]: Taking taylor expansion of x in x
0.090 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in x
0.090 * [taylor]: Taking taylor expansion of 4.0 in x
0.090 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.090 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.090 * [taylor]: Taking taylor expansion of y in x
0.090 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in x
0.090 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.090 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.090 * [taylor]: Taking taylor expansion of x in x
0.091 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in x
0.091 * [taylor]: Taking taylor expansion of 4.0 in x
0.091 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.091 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.091 * [taylor]: Taking taylor expansion of y in x
0.092 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2))))) in x
0.092 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in x
0.092 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.092 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.092 * [taylor]: Taking taylor expansion of x in x
0.092 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in x
0.092 * [taylor]: Taking taylor expansion of 4.0 in x
0.092 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.092 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.092 * [taylor]: Taking taylor expansion of y in x
0.093 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in x
0.093 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.093 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.093 * [taylor]: Taking taylor expansion of x in x
0.093 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in x
0.093 * [taylor]: Taking taylor expansion of 4.0 in x
0.093 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.093 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.093 * [taylor]: Taking taylor expansion of y in x
0.094 * [taylor]: Taking taylor expansion of 1 in y
0.097 * [taylor]: Taking taylor expansion of 0 in y
0.100 * [taylor]: Taking taylor expansion of (- (* 8.0 (/ 1 (pow y 2)))) in y
0.100 * [taylor]: Taking taylor expansion of (* 8.0 (/ 1 (pow y 2))) in y
0.100 * [taylor]: Taking taylor expansion of 8.0 in y
0.100 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.100 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.100 * [taylor]: Taking taylor expansion of y in y
0.108 * [taylor]: Taking taylor expansion of 0 in y
0.109 * [approximate]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2))))) in (x y) around 0
0.109 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2))))) in y
0.109 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in y
0.109 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.109 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.109 * [taylor]: Taking taylor expansion of x in y
0.109 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in y
0.109 * [taylor]: Taking taylor expansion of 4.0 in y
0.109 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.109 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.109 * [taylor]: Taking taylor expansion of y in y
0.109 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in y
0.110 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.110 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.110 * [taylor]: Taking taylor expansion of x in y
0.110 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in y
0.110 * [taylor]: Taking taylor expansion of 4.0 in y
0.110 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.110 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.110 * [taylor]: Taking taylor expansion of y in y
0.112 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2))))) in x
0.112 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in x
0.112 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.112 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.112 * [taylor]: Taking taylor expansion of x in x
0.113 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in x
0.113 * [taylor]: Taking taylor expansion of 4.0 in x
0.113 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.113 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.113 * [taylor]: Taking taylor expansion of y in x
0.113 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in x
0.113 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.113 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.113 * [taylor]: Taking taylor expansion of x in x
0.114 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in x
0.114 * [taylor]: Taking taylor expansion of 4.0 in x
0.114 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.114 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.114 * [taylor]: Taking taylor expansion of y in x
0.115 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2))))) in x
0.115 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in x
0.115 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.115 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.115 * [taylor]: Taking taylor expansion of x in x
0.115 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in x
0.115 * [taylor]: Taking taylor expansion of 4.0 in x
0.115 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.115 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.115 * [taylor]: Taking taylor expansion of y in x
0.116 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in x
0.116 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.116 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.116 * [taylor]: Taking taylor expansion of x in x
0.116 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in x
0.116 * [taylor]: Taking taylor expansion of 4.0 in x
0.116 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.116 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.116 * [taylor]: Taking taylor expansion of y in x
0.117 * [taylor]: Taking taylor expansion of 1 in y
0.120 * [taylor]: Taking taylor expansion of 0 in y
0.123 * [taylor]: Taking taylor expansion of (- (* 8.0 (/ 1 (pow y 2)))) in y
0.123 * [taylor]: Taking taylor expansion of (* 8.0 (/ 1 (pow y 2))) in y
0.123 * [taylor]: Taking taylor expansion of 8.0 in y
0.123 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.123 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.123 * [taylor]: Taking taylor expansion of y in y
0.131 * [taylor]: Taking taylor expansion of 0 in y
0.131 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
0.132 * [approximate]: Taking taylor expansion of (- (pow x 2) (* 4.0 (pow y 2))) in (x y) around 0
0.132 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (pow y 2))) in y
0.132 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.132 * [taylor]: Taking taylor expansion of x in y
0.132 * [taylor]: Taking taylor expansion of (* 4.0 (pow y 2)) in y
0.132 * [taylor]: Taking taylor expansion of 4.0 in y
0.132 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.132 * [taylor]: Taking taylor expansion of y in y
0.132 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (pow y 2))) in x
0.132 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.132 * [taylor]: Taking taylor expansion of (* 4.0 (pow y 2)) in x
0.132 * [taylor]: Taking taylor expansion of 4.0 in x
0.132 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.132 * [taylor]: Taking taylor expansion of y in x
0.132 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (pow y 2))) in x
0.132 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.132 * [taylor]: Taking taylor expansion of (* 4.0 (pow y 2)) in x
0.132 * [taylor]: Taking taylor expansion of 4.0 in x
0.132 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.132 * [taylor]: Taking taylor expansion of y in x
0.132 * [taylor]: Taking taylor expansion of (- (* 4.0 (pow y 2))) in y
0.132 * [taylor]: Taking taylor expansion of (* 4.0 (pow y 2)) in y
0.132 * [taylor]: Taking taylor expansion of 4.0 in y
0.132 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.132 * [taylor]: Taking taylor expansion of y in y
0.133 * [taylor]: Taking taylor expansion of 0 in y
0.135 * [taylor]: Taking taylor expansion of 1 in y
0.138 * [taylor]: Taking taylor expansion of 0 in y
0.142 * [taylor]: Taking taylor expansion of 0 in y
0.143 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in (x y) around 0
0.143 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in y
0.143 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.143 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.143 * [taylor]: Taking taylor expansion of x in y
0.143 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in y
0.143 * [taylor]: Taking taylor expansion of 4.0 in y
0.143 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.143 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.143 * [taylor]: Taking taylor expansion of y in y
0.144 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in x
0.144 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.144 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.144 * [taylor]: Taking taylor expansion of x in x
0.144 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in x
0.144 * [taylor]: Taking taylor expansion of 4.0 in x
0.144 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.144 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.144 * [taylor]: Taking taylor expansion of y in x
0.145 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in x
0.145 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.145 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.145 * [taylor]: Taking taylor expansion of x in x
0.145 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in x
0.145 * [taylor]: Taking taylor expansion of 4.0 in x
0.145 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.145 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.145 * [taylor]: Taking taylor expansion of y in x
0.146 * [taylor]: Taking taylor expansion of 1 in y
0.147 * [taylor]: Taking taylor expansion of 0 in y
0.148 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (pow y 2)))) in y
0.148 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in y
0.148 * [taylor]: Taking taylor expansion of 4.0 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
0.155 * [taylor]: Taking taylor expansion of 0 in y
0.160 * [taylor]: Taking taylor expansion of 0 in y
0.162 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in (x y) around 0
0.162 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in y
0.162 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.162 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.162 * [taylor]: Taking taylor expansion of x in y
0.163 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in y
0.163 * [taylor]: Taking taylor expansion of 4.0 in y
0.163 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.163 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.163 * [taylor]: Taking taylor expansion of y in y
0.163 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 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 (* 4.0 (/ 1 (pow y 2))) in x
0.164 * [taylor]: Taking taylor expansion of 4.0 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
0.164 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (pow y 2)))) in x
0.164 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.164 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.164 * [taylor]: Taking taylor expansion of x in x
0.165 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in x
0.165 * [taylor]: Taking taylor expansion of 4.0 in x
0.165 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.165 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.165 * [taylor]: Taking taylor expansion of y in x
0.165 * [taylor]: Taking taylor expansion of 1 in y
0.166 * [taylor]: Taking taylor expansion of 0 in y
0.168 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (pow y 2)))) in y
0.168 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (pow y 2))) in y
0.168 * [taylor]: Taking taylor expansion of 4.0 in y
0.168 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.168 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.168 * [taylor]: Taking taylor expansion of y in y
0.171 * [taylor]: Taking taylor expansion of 0 in y
0.176 * [taylor]: Taking taylor expansion of 0 in y
0.178 * * * [progress]: simplifying candidates
0.179 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (- (* x x) (* (* y 4.0) y)))
  (- (+ (* x x) (* (* y 4.0) y)))
  (/ (* x x) (+ (* x x) (* (* y 4.0) y)))
  (/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y)))
  (/ 1 (+ (* x x) (* (* y 4.0) y)))
  (/ (+ (* x x) (* (* y 4.0) y)) (- (* x x) (* (* y 4.0) y)))
  (/ (- (* x x) (* (* y 4.0) y)) (+ (pow (* x x) 3) (pow (* (* y 4.0) y) 3)))
  (/ (- (* x x) (* (* y 4.0) y)) (- (* (* x x) (* x x)) (* (* (* y 4.0) y) (* (* y 4.0) y))))
  (* (+ (* x x) (* (* y 4.0) y)) (+ (* (* x x) (* x x)) (+ (* (* (* y 4.0) y) (* (* y 4.0) y)) (* (* x x) (* (* y 4.0) y)))))
  (* (+ (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y)))
  (fma x x (- (* y (* y 4.0))))
  (fma (- y) (* y 4.0) (* y (* y 4.0)))
  (fma x x (- (* (* 4.0 y) y)))
  (fma (- (* 4.0 y)) y (* (* 4.0 y) y))
  (fma x x (- (* (* y y) 4.0)))
  (fma (- (* y y)) 4.0 (* (* y y) 4.0))
  (fma x x (- (* (* y 4.0) y)))
  (fma (- (* y 4.0)) y (* (* y 4.0) y))
  (fma x x (- (* y (* y 4.0))))
  (fma (- y) (* y 4.0) (* y (* y 4.0)))
  (fma x x (- (* (* 4.0 y) y)))
  (fma (- (* 4.0 y)) y (* (* 4.0 y) y))
  (fma x x (- (* (* y y) 4.0)))
  (fma (- (* y y)) 4.0 (* (* y y) 4.0))
  (fma x x (- (* (* y 4.0) y)))
  (fma (- (* y 4.0)) y (* (* y 4.0) y))
  (- (* (* y 4.0) y))
  (- (* (* y 4.0) y))
  (- (pow (* x x) 3) (pow (* (* y 4.0) y) 3))
  (+ (* (* x x) (* x x)) (+ (* (* (* y 4.0) y) (* (* y 4.0) y)) (* (* x x) (* (* y 4.0) y))))
  (- (* (* y 4.0) y))
  (- (* (* x x) (* x x)) (* (* (* y 4.0) y) (* (* y 4.0) y)))
  (+ (* x x) (* (* y 4.0) y))
  (- (* (* y 4.0) y))
  -1.0
  1
  1
  (- (pow x 2) (* 4.0 (pow y 2)))
  (- (pow x 2) (* 4.0 (pow y 2)))
  (- (pow x 2) (* 4.0 (pow y 2)))
0.183 * * [simplify]: iteration  0 :  156  enodes  (cost  208 )
0.187 * * [simplify]: iteration  1 :  603  enodes  (cost  197 )
0.200 * * [simplify]: iteration  2 :  2376  enodes  (cost  194 )
0.260 * * [simplify]: iteration  3 :  5001  enodes  (cost  151 )
0.262 * [simplify]: Simplified to:
   (fma (- x) x (* y (* y 4.0)))
  (- (+ (* x x) (* (* y 4.0) y)))
  (/ x (/ (fma x x (* (* y 4.0) y)) x))
  (/ (* y 4.0) (/ (fma x x (* (* y 4.0) y)) y))
  (/ 1 (+ (* x x) (* (* y 4.0) y)))
  (/ (+ (* x x) (* (* y 4.0) y)) (- (* x x) (* (* y 4.0) y)))
  (/ (- (* x x) (* (* y 4.0) y)) (+ (pow (* x x) 3) (pow (* (* y 4.0) y) 3)))
  (/ 1 (+ (* x x) (* (* y 4.0) y)))
  (* (+ (* (* (* y 4.0) y) (+ (* (* y 4.0) y) (pow x 2))) (* (* x x) (* x x))) (fma x x (* (* y 4.0) y)))
  (* (+ (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y)))
  (- (* x x) (* (* y 4.0) y))
  0
  (- (* x x) (* (* y 4.0) y))
  0
  (- (* x x) (* (* y 4.0) y))
  0
  (- (* x x) (* (* y 4.0) y))
  0
  (- (* x x) (* (* y 4.0) y))
  0
  (- (* x x) (* (* y 4.0) y))
  0
  (- (* x x) (* (* y 4.0) y))
  0
  (- (* x x) (* (* y 4.0) y))
  0
  (- (* (* 4.0 y) y))
  (- (* (* 4.0 y) y))
  (- (pow (* x x) 3) (pow (* (* y 4.0) y) 3))
  (fma (pow y 2) (* 4.0 (fma x x (* (* y 4.0) y))) (pow x 4))
  (- (* (* 4.0 y) y))
  (fma (- (pow y 4)) (* 4.0 4.0) (pow x 4))
  (fma x x (* (* y 4.0) y))
  (- (* (* 4.0 y) y))
  -1.0
  1
  1
  (- (* x x) (* (* y 4.0) y))
  (- (* x x) (* (* y 4.0) y))
  (- (* x x) (* (* y 4.0) y))
0.262 * * * [progress]: adding candidates to table
0.309 * * [progress]: iteration 2 / 4
0.309 * * * [progress]: picking best candidate
0.311 * * * * [pick]: Picked  #<alt (λ (x y) -1.0)>
0.311 * * * [progress]: localizing error
0.311 * * * [progress]: generating rewritten candidates
0.311 * * * [progress]: generating series expansions
0.311 * * * [progress]: simplifying candidates
0.312 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.314 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.314 * [simplify]: Simplified to:
   
0.314 * * * [progress]: adding candidates to table
0.315 * * [progress]: iteration 3 / 4
0.315 * * * [progress]: picking best candidate
0.316 * * * * [pick]: Picked  #<alt (λ (x y) 1)>
0.316 * * * [progress]: localizing error
0.316 * * * [progress]: generating rewritten candidates
0.316 * * * [progress]: generating series expansions
0.316 * * * [progress]: simplifying candidates
0.316 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.319 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.319 * [simplify]: Simplified to:
   
0.319 * * * [progress]: adding candidates to table
0.319 * [progress]: [Phase 3 of 3] Extracting.
0.319 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))))> #<alt (λ (x y) -1.0)>)
0.320 * * * [regime-changes]: Trying 5 branch expressions: ((* (* y 4.0) y) (* x x) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))) y x)
0.320 * * * * [regimes]: Trying to branch on (* (* y 4.0) y) from (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))))> #<alt (λ (x y) -1.0)>)
0.339 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))))> #<alt (λ (x y) -1.0)>)
0.367 * * * * [regimes]: Trying to branch on (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))) from (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))))> #<alt (λ (x y) -1.0)>)
0.380 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))))> #<alt (λ (x y) -1.0)>)
0.408 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))))> #<alt (λ (x y) -1.0)>)
0.450 * * * [regime]: Found split indices: #<option (#s(si 0 36) #s(si 1 69) #s(si 2 162) #s(si 1 184) #s(si 2 191) #s(si 1 216) #s(si 0 255))>
0.451 * [binary-search]: Improving bounds with binary search for x and (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))))> #<alt (λ (x y) -1.0)>)
0.671 * [regimes]: Found splitpoints: (#s(sp 0 x -3.083108636099379e+138) #s(sp 1 x -1.4247950034871411e-65) #s(sp 2 x 5.1574474042365036e-136) #s(sp 1 x 5.887786609364337e-36) #s(sp 2 x 1.9147852806683633e+18) #s(sp 1 x 2.026811476856582e+120) #s(sp 0 x +nan.0)) , with alts (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))))> #<alt (λ (x y) -1.0)>)
0.671 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (if (<= x -3.083108636099379e+138) 1 (if (<= x -1.4247950034871411e-65) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))) (if (<= x 5.1574474042365036e-136) -1.0 (if (<= x 5.887786609364337e-36) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))) (if (<= x 1.9147852806683633e+18) -1.0 (if (<= x 2.026811476856582e+120) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))) 1))))))
0.672 * * [simplify]: iteration  0 :  34  enodes  (cost  27 )
0.672 * * [simplify]: iteration  1 :  34  enodes  (cost  27 )
0.672 * [simplify]: Simplified to:
   (if (<= x -3.083108636099379e+138) 1 (if (<= x -1.4247950034871411e-65) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))) (if (<= x 5.1574474042365036e-136) -1.0 (if (<= x 5.887786609364337e-36) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))) (if (<= x 1.9147852806683633e+18) -1.0 (if (<= x 2.026811476856582e+120) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))) 1))))))
1.150 * [regime-testing]: Baseline error score: 31.542614142371296
1.151 * [regime-testing]: Oracle error score: 0.38452902148229434
1.152 * [regime-testing]: End program error score: 13.744103541167572
1.193 * [regime-testing]: Target error score: 31.74994136390802