33.320 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.032 * * * [progress]: [2/2] Setting up program.
0.034 * [progress]: [Phase 2 of 3] Improving.
0.035 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.035 * * [simplify]: Extracting # 0 : cost  0
0.035 * * [simplify]: Extracting # 1 : cost  0
0.035 * * [simplify]: Extracting # 2 : cost  0
0.035 * * [simplify]: Extracting # 3 : cost  0
0.035 * * [simplify]: Extracting # 4 : cost  0
0.035 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.037 * * [simplify]: Extracting # 0 : cost  0
0.037 * * [simplify]: Extracting # 1 : cost  0
0.037 * * [simplify]: Extracting # 2 : cost  0
0.037 * * [simplify]: iteration  1 :  11  enodes  (cost  7 )
0.040 * * [simplify]: Extracting # 0 : cost  0
0.040 * * [simplify]: Extracting # 1 : cost  0
0.040 * * [simplify]: Extracting # 2 : cost  0
0.040 * * [simplify]: iteration  2 :  18  enodes  (cost  7 )
0.045 * * [simplify]: Extracting # 0 : cost  0
0.045 * * [simplify]: Extracting # 1 : cost  0
0.045 * * [simplify]: Extracting # 2 : cost  0
0.045 * * [simplify]: iteration  3 :  35  enodes  (cost  7 )
0.066 * * [simplify]: Extracting # 0 : cost  0
0.067 * * [simplify]: Extracting # 1 : cost  0
0.067 * * [simplify]: Extracting # 2 : cost  0
0.067 * * [simplify]: iteration  4 :  67  enodes  (cost  7 )
0.099 * * [simplify]: Extracting # 0 : cost  0
0.099 * * [simplify]: Extracting # 1 : cost  0
0.099 * * [simplify]: Extracting # 2 : cost  0
0.099 * * [simplify]: iteration  5 :  160  enodes  (cost  7 )
0.169 * * [simplify]: Extracting # 0 : cost  0
0.169 * * [simplify]: Extracting # 1 : cost  0
0.169 * * [simplify]: Extracting # 2 : cost  0
0.169 * * [simplify]: iteration  6 :  271  enodes  (cost  7 )
0.299 * * [simplify]: Extracting # 0 : cost  0
0.300 * * [simplify]: Extracting # 1 : cost  0
0.300 * * [simplify]: Extracting # 2 : cost  0
0.300 * * [simplify]: Extracting # 3 : cost  0
0.301 * * [simplify]: iteration  7 :  514  enodes  (cost  7 )
1.344 * * [simplify]: Extracting # 0 : cost  0
1.347 * * [simplify]: Extracting # 1 : cost  0
1.350 * * [simplify]: Extracting # 2 : cost  0
1.352 * * [simplify]: Extracting # 3 : cost  0
1.359 * * [simplify]: Extracting # 4 : cost  0
1.361 * * [simplify]: iteration  8 :  1901  enodes  (cost  7 )
11.082 * * [simplify]: Extracting # 0 : cost  0
11.094 * * [simplify]: Extracting # 1 : cost  0
11.097 * * [simplify]: Extracting # 2 : cost  0
11.100 * * [simplify]: Extracting # 3 : cost  0
11.103 * * [simplify]: Extracting # 4 : cost  0
11.106 * * [simplify]: iteration done:  5001  enodes  (cost  7 )
11.106 * [simplify]: Simplified to:
  (- (* x x) (* y y))
11.106 * * [progress]: iteration 1 / 4
11.106 * * * [progress]: picking best candidate
11.107 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
11.107 * * * [progress]: localizing error
11.112 * * * [progress]: generating rewritten candidates
11.112 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
11.126 * * * [progress]: generating series expansions
11.126 * * * * [progress]: [ 1 / 1 ] generating series at (2)
11.126 * [backup-simplify]: Simplify (- (* x x) (* y y)) into (- (pow x 2) (pow y 2))
11.126 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
11.126 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
11.126 * [taylor]: Taking taylor expansion of (pow x 2) in y
11.126 * [taylor]: Taking taylor expansion of x in y
11.126 * [backup-simplify]: Simplify x into x
11.126 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.126 * [taylor]: Taking taylor expansion of y in y
11.126 * [backup-simplify]: Simplify 0 into 0
11.126 * [backup-simplify]: Simplify 1 into 1
11.126 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
11.126 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.126 * [taylor]: Taking taylor expansion of x in x
11.126 * [backup-simplify]: Simplify 0 into 0
11.126 * [backup-simplify]: Simplify 1 into 1
11.126 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.126 * [taylor]: Taking taylor expansion of y in x
11.126 * [backup-simplify]: Simplify y into y
11.126 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
11.127 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.127 * [taylor]: Taking taylor expansion of x in x
11.127 * [backup-simplify]: Simplify 0 into 0
11.127 * [backup-simplify]: Simplify 1 into 1
11.127 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.127 * [taylor]: Taking taylor expansion of y in x
11.127 * [backup-simplify]: Simplify y into y
11.127 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.127 * [backup-simplify]: Simplify (- (pow y 2)) into (- (pow y 2))
11.127 * [backup-simplify]: Simplify (+ 0 (- (pow y 2))) into (- (pow y 2))
11.127 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
11.127 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.127 * [taylor]: Taking taylor expansion of y in y
11.127 * [backup-simplify]: Simplify 0 into 0
11.127 * [backup-simplify]: Simplify 1 into 1
11.127 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
11.128 * [backup-simplify]: Simplify (- 0) into 0
11.128 * [backup-simplify]: Simplify (+ 0 0) into 0
11.128 * [taylor]: Taking taylor expansion of 0 in y
11.128 * [backup-simplify]: Simplify 0 into 0
11.128 * [backup-simplify]: Simplify 0 into 0
11.128 * [backup-simplify]: Simplify (* 1 1) into 1
11.128 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
11.129 * [backup-simplify]: Simplify (- 0) into 0
11.129 * [backup-simplify]: Simplify (+ 1 0) into 1
11.129 * [taylor]: Taking taylor expansion of 1 in y
11.129 * [backup-simplify]: Simplify 1 into 1
11.129 * [backup-simplify]: Simplify 1 into 1
11.129 * [backup-simplify]: Simplify 0 into 0
11.129 * [backup-simplify]: Simplify (* 1 1) into 1
11.129 * [backup-simplify]: Simplify (- 1) into -1
11.129 * [backup-simplify]: Simplify -1 into -1
11.130 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.131 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
11.131 * [backup-simplify]: Simplify (- 0) into 0
11.131 * [backup-simplify]: Simplify (+ 0 0) into 0
11.131 * [taylor]: Taking taylor expansion of 0 in y
11.131 * [backup-simplify]: Simplify 0 into 0
11.131 * [backup-simplify]: Simplify 0 into 0
11.131 * [backup-simplify]: Simplify 0 into 0
11.131 * [backup-simplify]: Simplify 0 into 0
11.132 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.132 * [backup-simplify]: Simplify (- 0) into 0
11.132 * [backup-simplify]: Simplify 0 into 0
11.132 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.133 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
11.133 * [backup-simplify]: Simplify (- 0) into 0
11.133 * [backup-simplify]: Simplify (+ 0 0) into 0
11.134 * [taylor]: Taking taylor expansion of 0 in y
11.134 * [backup-simplify]: Simplify 0 into 0
11.134 * [backup-simplify]: Simplify 0 into 0
11.134 * [backup-simplify]: Simplify 0 into 0
11.134 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
11.134 * [backup-simplify]: Simplify (- (* (/ 1 x) (/ 1 x)) (* (/ 1 y) (/ 1 y))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
11.134 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
11.134 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
11.134 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
11.134 * [taylor]: Taking taylor expansion of (pow x 2) in y
11.134 * [taylor]: Taking taylor expansion of x in y
11.134 * [backup-simplify]: Simplify x into x
11.134 * [backup-simplify]: Simplify (* x x) into (pow x 2)
11.134 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
11.134 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.134 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.134 * [taylor]: Taking taylor expansion of y in y
11.134 * [backup-simplify]: Simplify 0 into 0
11.134 * [backup-simplify]: Simplify 1 into 1
11.135 * [backup-simplify]: Simplify (* 1 1) into 1
11.135 * [backup-simplify]: Simplify (/ 1 1) into 1
11.135 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.135 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.135 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.135 * [taylor]: Taking taylor expansion of x in x
11.135 * [backup-simplify]: Simplify 0 into 0
11.135 * [backup-simplify]: Simplify 1 into 1
11.135 * [backup-simplify]: Simplify (* 1 1) into 1
11.135 * [backup-simplify]: Simplify (/ 1 1) into 1
11.135 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.135 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.135 * [taylor]: Taking taylor expansion of y in x
11.135 * [backup-simplify]: Simplify y into y
11.136 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.136 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.136 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.136 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.136 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.136 * [taylor]: Taking taylor expansion of x in x
11.136 * [backup-simplify]: Simplify 0 into 0
11.136 * [backup-simplify]: Simplify 1 into 1
11.136 * [backup-simplify]: Simplify (* 1 1) into 1
11.136 * [backup-simplify]: Simplify (/ 1 1) into 1
11.136 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.136 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.136 * [taylor]: Taking taylor expansion of y in x
11.136 * [backup-simplify]: Simplify y into y
11.136 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.136 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.137 * [backup-simplify]: Simplify (+ 1 0) into 1
11.137 * [taylor]: Taking taylor expansion of 1 in y
11.137 * [backup-simplify]: Simplify 1 into 1
11.137 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.138 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.138 * [backup-simplify]: Simplify (+ 0 0) into 0
11.138 * [taylor]: Taking taylor expansion of 0 in y
11.138 * [backup-simplify]: Simplify 0 into 0
11.138 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.139 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.139 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
11.139 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
11.139 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
11.139 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.139 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.139 * [taylor]: Taking taylor expansion of y in y
11.139 * [backup-simplify]: Simplify 0 into 0
11.139 * [backup-simplify]: Simplify 1 into 1
11.139 * [backup-simplify]: Simplify (* 1 1) into 1
11.140 * [backup-simplify]: Simplify (/ 1 1) into 1
11.140 * [backup-simplify]: Simplify (- 1) into -1
11.140 * [backup-simplify]: Simplify -1 into -1
11.140 * [backup-simplify]: Simplify 1 into 1
11.140 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
11.141 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.141 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
11.141 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
11.142 * [backup-simplify]: Simplify (- 0) into 0
11.142 * [backup-simplify]: Simplify (+ 0 0) into 0
11.142 * [taylor]: Taking taylor expansion of 0 in y
11.142 * [backup-simplify]: Simplify 0 into 0
11.142 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.143 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.143 * [backup-simplify]: Simplify (- 0) into 0
11.143 * [backup-simplify]: Simplify 0 into 0
11.143 * [backup-simplify]: Simplify 0 into 0
11.143 * [backup-simplify]: Simplify 0 into 0
11.144 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
11.144 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.145 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
11.145 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
11.145 * [backup-simplify]: Simplify (- 0) into 0
11.145 * [backup-simplify]: Simplify (+ 0 0) into 0
11.145 * [taylor]: Taking taylor expansion of 0 in y
11.145 * [backup-simplify]: Simplify 0 into 0
11.146 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.146 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.147 * [backup-simplify]: Simplify (- 0) into 0
11.147 * [backup-simplify]: Simplify 0 into 0
11.147 * [backup-simplify]: Simplify 0 into 0
11.147 * [backup-simplify]: Simplify 0 into 0
11.147 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
11.147 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (/ 1 (- x))) (* (/ 1 (- y)) (/ 1 (- y)))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
11.147 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
11.147 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
11.147 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
11.147 * [taylor]: Taking taylor expansion of (pow x 2) in y
11.147 * [taylor]: Taking taylor expansion of x in y
11.147 * [backup-simplify]: Simplify x into x
11.147 * [backup-simplify]: Simplify (* x x) into (pow x 2)
11.147 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
11.147 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.147 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.147 * [taylor]: Taking taylor expansion of y in y
11.147 * [backup-simplify]: Simplify 0 into 0
11.147 * [backup-simplify]: Simplify 1 into 1
11.148 * [backup-simplify]: Simplify (* 1 1) into 1
11.148 * [backup-simplify]: Simplify (/ 1 1) into 1
11.148 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.148 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.148 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.148 * [taylor]: Taking taylor expansion of x in x
11.148 * [backup-simplify]: Simplify 0 into 0
11.148 * [backup-simplify]: Simplify 1 into 1
11.148 * [backup-simplify]: Simplify (* 1 1) into 1
11.148 * [backup-simplify]: Simplify (/ 1 1) into 1
11.149 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.149 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.149 * [taylor]: Taking taylor expansion of y in x
11.149 * [backup-simplify]: Simplify y into y
11.149 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.149 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.149 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.149 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.149 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.149 * [taylor]: Taking taylor expansion of x in x
11.149 * [backup-simplify]: Simplify 0 into 0
11.149 * [backup-simplify]: Simplify 1 into 1
11.149 * [backup-simplify]: Simplify (* 1 1) into 1
11.149 * [backup-simplify]: Simplify (/ 1 1) into 1
11.149 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.149 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.149 * [taylor]: Taking taylor expansion of y in x
11.149 * [backup-simplify]: Simplify y into y
11.149 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.149 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.150 * [backup-simplify]: Simplify (+ 1 0) into 1
11.150 * [taylor]: Taking taylor expansion of 1 in y
11.150 * [backup-simplify]: Simplify 1 into 1
11.150 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.151 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.151 * [backup-simplify]: Simplify (+ 0 0) into 0
11.151 * [taylor]: Taking taylor expansion of 0 in y
11.151 * [backup-simplify]: Simplify 0 into 0
11.151 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.152 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.152 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
11.152 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
11.152 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
11.152 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.152 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.152 * [taylor]: Taking taylor expansion of y in y
11.152 * [backup-simplify]: Simplify 0 into 0
11.152 * [backup-simplify]: Simplify 1 into 1
11.152 * [backup-simplify]: Simplify (* 1 1) into 1
11.153 * [backup-simplify]: Simplify (/ 1 1) into 1
11.153 * [backup-simplify]: Simplify (- 1) into -1
11.153 * [backup-simplify]: Simplify -1 into -1
11.153 * [backup-simplify]: Simplify 1 into 1
11.154 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
11.154 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.154 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
11.154 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
11.155 * [backup-simplify]: Simplify (- 0) into 0
11.155 * [backup-simplify]: Simplify (+ 0 0) into 0
11.155 * [taylor]: Taking taylor expansion of 0 in y
11.155 * [backup-simplify]: Simplify 0 into 0
11.155 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.156 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.156 * [backup-simplify]: Simplify (- 0) into 0
11.156 * [backup-simplify]: Simplify 0 into 0
11.156 * [backup-simplify]: Simplify 0 into 0
11.156 * [backup-simplify]: Simplify 0 into 0
11.157 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
11.157 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.157 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
11.158 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
11.158 * [backup-simplify]: Simplify (- 0) into 0
11.158 * [backup-simplify]: Simplify (+ 0 0) into 0
11.158 * [taylor]: Taking taylor expansion of 0 in y
11.158 * [backup-simplify]: Simplify 0 into 0
11.159 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.159 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.159 * [backup-simplify]: Simplify (- 0) into 0
11.159 * [backup-simplify]: Simplify 0 into 0
11.160 * [backup-simplify]: Simplify 0 into 0
11.160 * [backup-simplify]: Simplify 0 into 0
11.160 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
11.160 * * * [progress]: simplifying candidates
11.160 * [simplify]: Simplifying:
  (fma x x (- (* y y)))
  (fma (- y) y (* y y))
  (expm1 (- (* x x) (* y y)))
  (log1p (- (* x x) (* y y)))
  (- (* 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))))
  (- (* y y))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (+ (* x x) (* y y))
  (+ x y)
  (- x y)
  (- (* y y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
11.161 * * [simplify]: Extracting # 0 : cost  0
11.161 * * [simplify]: Extracting # 1 : cost  0
11.161 * * [simplify]: Extracting # 2 : cost  0
11.161 * * [simplify]: Extracting # 3 : cost  0
11.161 * * [simplify]: Extracting # 4 : cost  0
11.161 * * [simplify]: Extracting # 5 : cost  0
11.161 * * [simplify]: iteration  0 :  38  enodes  (cost  214 )
11.170 * * [simplify]: Extracting # 0 : cost  0
11.171 * * [simplify]: Extracting # 1 : cost  0
11.171 * * [simplify]: Extracting # 2 : cost  0
11.171 * * [simplify]: Extracting # 3 : cost  0
11.171 * * [simplify]: Extracting # 4 : cost  0
11.171 * * [simplify]: iteration  1 :  100  enodes  (cost  205 )
11.211 * * [simplify]: Extracting # 0 : cost  0
11.211 * * [simplify]: Extracting # 1 : cost  0
11.212 * * [simplify]: Extracting # 2 : cost  0
11.212 * * [simplify]: Extracting # 3 : cost  0
11.212 * * [simplify]: Extracting # 4 : cost  0
11.213 * * [simplify]: iteration  2 :  291  enodes  (cost  175 )
11.346 * * [simplify]: Extracting # 0 : cost  0
11.347 * * [simplify]: Extracting # 1 : cost  0
11.348 * * [simplify]: Extracting # 2 : cost  0
11.349 * * [simplify]: Extracting # 3 : cost  0
11.349 * * [simplify]: Extracting # 4 : cost  0
11.350 * * [simplify]: iteration  3 :  922  enodes  (cost  175 )
12.394 * * [simplify]: Extracting # 0 : cost  0
12.398 * * [simplify]: Extracting # 1 : cost  0
12.402 * * [simplify]: Extracting # 2 : cost  0
12.404 * * [simplify]: Extracting # 3 : cost  0
12.408 * * [simplify]: Extracting # 4 : cost  0
12.412 * * [simplify]: iteration  4 :  4017  enodes  (cost  170 )
13.889 * * [simplify]: Extracting # 0 : cost  0
13.896 * * [simplify]: Extracting # 1 : cost  0
13.902 * * [simplify]: iteration done:  5000  enodes  (cost  170 )
13.902 * [simplify]: Simplified to:
  (fma x x (- (* y y)))
  0
  (expm1 (- (* x x) (* y y)))
  (log1p (- (* x x) (* y y)))
  (- (* y y))
  (exp (- (* x x) (* y y)))
  (log (- (* x x) (* y y)))
  (exp (- (* x x) (* y y)))
  (* (cbrt (- (* x x) (* y y))) (cbrt (- (* x x) (* y y))))
  (cbrt (- (* x x) (* y y)))
  (pow (fma x x (- (* y y))) 3)
  (sqrt (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (- (pow x 6) (pow y 6))
  (fma (* y y) (fma x x (pow y 2)) (pow x 4))
  (- (* y y))
  (- (pow x 4) (pow y 4))
  (fma x x (pow y 2))
  (+ x y)
  (- x y)
  (- (* y y))
  (fma x x (- (* y y)))
  (fma x x (- (* y y)))
  (fma x x (- (* y y)))
13.902 * * * [progress]: adding candidates to table
13.949 * * [progress]: iteration 2 / 4
13.949 * * * [progress]: picking best candidate
13.950 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
13.950 * * * [progress]: localizing error
13.958 * * * [progress]: generating rewritten candidates
13.958 * * * [progress]: generating series expansions
13.958 * * * [progress]: simplifying candidates
13.958 * [simplify]: Simplifying:
  
13.958 * * [simplify]: Extracting # 0 : cost  0
13.958 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
13.958 * * [simplify]: Extracting # 0 : cost  0
13.958 * * [simplify]: iteration done:  0  enodes  (cost  0 )
13.958 * [simplify]: Simplified to:
  
13.958 * * * [progress]: adding candidates to table
13.959 * [progress]: [Phase 3 of 3] Extracting.
13.961 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
13.961 * * [simplify]: Extracting # 0 : cost  0
13.961 * * [simplify]: Extracting # 1 : cost  0
13.961 * * [simplify]: Extracting # 2 : cost  0
13.961 * * [simplify]: Extracting # 3 : cost  0
13.961 * * [simplify]: Extracting # 4 : cost  0
13.961 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
13.961 * * [simplify]: Extracting # 0 : cost  0
13.961 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
13.962 * * [simplify]: Extracting # 0 : cost  0
13.962 * * [simplify]: iteration done:  7  enodes  (cost  7 )
13.962 * [simplify]: Simplified to:
  (* (+ x y) (- x y))
14.969 * [regime-testing]: Baseline error score: 0.0008751093886735842
14.971 * [regime-testing]: Oracle error score: 0.0008751093886735842
14.971 * [regime-testing]: End program error score: 0.0008751093886735842