35.443 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.040 * * * [progress]: [2/2] Setting up program.
0.042 * [progress]: [Phase 2 of 3] Improving.
0.043 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.043 * * [simplify]: Extracting # 0 : cost  0
0.043 * * [simplify]: Extracting # 1 : cost  0
0.043 * * [simplify]: Extracting # 2 : cost  0
0.043 * * [simplify]: Extracting # 3 : cost  0
0.043 * * [simplify]: Extracting # 4 : cost  0
0.043 * * [simplify]: iteration  0 :  5  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  1 :  11  enodes  (cost  7 )
0.048 * * [simplify]: Extracting # 0 : cost  0
0.048 * * [simplify]: Extracting # 1 : cost  0
0.048 * * [simplify]: Extracting # 2 : cost  0
0.048 * * [simplify]: iteration  2 :  18  enodes  (cost  7 )
0.053 * * [simplify]: Extracting # 0 : cost  0
0.053 * * [simplify]: Extracting # 1 : cost  0
0.053 * * [simplify]: Extracting # 2 : cost  0
0.053 * * [simplify]: iteration  3 :  35  enodes  (cost  7 )
0.066 * * [simplify]: Extracting # 0 : cost  0
0.066 * * [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 )
0.183 * * [simplify]: Extracting # 0 : cost  0
0.183 * * [simplify]: Extracting # 1 : cost  0
0.184 * * [simplify]: Extracting # 2 : cost  0
0.184 * * [simplify]: iteration  6 :  271  enodes  (cost  7 )
0.366 * * [simplify]: Extracting # 0 : cost  0
0.367 * * [simplify]: Extracting # 1 : cost  0
0.367 * * [simplify]: Extracting # 2 : cost  0
0.368 * * [simplify]: Extracting # 3 : cost  0
0.369 * * [simplify]: iteration  7 :  514  enodes  (cost  7 )
1.481 * * [simplify]: Extracting # 0 : cost  0
1.484 * * [simplify]: Extracting # 1 : cost  0
1.487 * * [simplify]: Extracting # 2 : cost  0
1.489 * * [simplify]: Extracting # 3 : cost  0
1.491 * * [simplify]: Extracting # 4 : cost  0
1.494 * * [simplify]: iteration  8 :  1901  enodes  (cost  7 )
10.983 * * [simplify]: Extracting # 0 : cost  0
11.008 * * [simplify]: Extracting # 1 : cost  0
11.015 * * [simplify]: Extracting # 2 : cost  0
11.021 * * [simplify]: Extracting # 3 : cost  0
11.027 * * [simplify]: Extracting # 4 : cost  0
11.037 * * [simplify]: iteration done:  5001  enodes  (cost  7 )
11.037 * [simplify]: Simplified to:
  (- (* x x) (* y y))
11.038 * * [progress]: iteration 1 / 4
11.038 * * * [progress]: picking best candidate
11.040 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
11.040 * * * [progress]: localizing error
11.050 * * * [progress]: generating rewritten candidates
11.050 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
11.068 * * * [progress]: generating series expansions
11.068 * * * * [progress]: [ 1 / 1 ] generating series at (2)
11.069 * [backup-simplify]: Simplify (- (* x x) (* y y)) into (- (pow x 2) (pow y 2))
11.069 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
11.069 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
11.069 * [taylor]: Taking taylor expansion of (pow x 2) in y
11.069 * [taylor]: Taking taylor expansion of x in y
11.069 * [backup-simplify]: Simplify x into x
11.069 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.069 * [taylor]: Taking taylor expansion of y in y
11.069 * [backup-simplify]: Simplify 0 into 0
11.069 * [backup-simplify]: Simplify 1 into 1
11.069 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
11.069 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.069 * [taylor]: Taking taylor expansion of x in x
11.069 * [backup-simplify]: Simplify 0 into 0
11.069 * [backup-simplify]: Simplify 1 into 1
11.069 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.069 * [taylor]: Taking taylor expansion of y in x
11.069 * [backup-simplify]: Simplify y into y
11.069 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
11.069 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.069 * [taylor]: Taking taylor expansion of x in x
11.069 * [backup-simplify]: Simplify 0 into 0
11.069 * [backup-simplify]: Simplify 1 into 1
11.069 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.069 * [taylor]: Taking taylor expansion of y in x
11.070 * [backup-simplify]: Simplify y into y
11.070 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.070 * [backup-simplify]: Simplify (- (pow y 2)) into (- (pow y 2))
11.070 * [backup-simplify]: Simplify (+ 0 (- (pow y 2))) into (- (pow y 2))
11.070 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
11.070 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.070 * [taylor]: Taking taylor expansion of y in y
11.070 * [backup-simplify]: Simplify 0 into 0
11.070 * [backup-simplify]: Simplify 1 into 1
11.070 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
11.071 * [backup-simplify]: Simplify (- 0) into 0
11.071 * [backup-simplify]: Simplify (+ 0 0) into 0
11.071 * [taylor]: Taking taylor expansion of 0 in y
11.071 * [backup-simplify]: Simplify 0 into 0
11.071 * [backup-simplify]: Simplify 0 into 0
11.072 * [backup-simplify]: Simplify (* 1 1) into 1
11.072 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
11.073 * [backup-simplify]: Simplify (- 0) into 0
11.073 * [backup-simplify]: Simplify (+ 1 0) into 1
11.073 * [taylor]: Taking taylor expansion of 1 in y
11.073 * [backup-simplify]: Simplify 1 into 1
11.073 * [backup-simplify]: Simplify 1 into 1
11.073 * [backup-simplify]: Simplify 0 into 0
11.074 * [backup-simplify]: Simplify (* 1 1) into 1
11.074 * [backup-simplify]: Simplify (- 1) into -1
11.074 * [backup-simplify]: Simplify -1 into -1
11.075 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.076 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
11.076 * [backup-simplify]: Simplify (- 0) into 0
11.076 * [backup-simplify]: Simplify (+ 0 0) into 0
11.076 * [taylor]: Taking taylor expansion of 0 in y
11.076 * [backup-simplify]: Simplify 0 into 0
11.077 * [backup-simplify]: Simplify 0 into 0
11.077 * [backup-simplify]: Simplify 0 into 0
11.077 * [backup-simplify]: Simplify 0 into 0
11.077 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.078 * [backup-simplify]: Simplify (- 0) into 0
11.078 * [backup-simplify]: Simplify 0 into 0
11.079 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.080 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
11.080 * [backup-simplify]: Simplify (- 0) into 0
11.080 * [backup-simplify]: Simplify (+ 0 0) into 0
11.080 * [taylor]: Taking taylor expansion of 0 in y
11.081 * [backup-simplify]: Simplify 0 into 0
11.081 * [backup-simplify]: Simplify 0 into 0
11.081 * [backup-simplify]: Simplify 0 into 0
11.081 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
11.081 * [backup-simplify]: Simplify (- (* (/ 1 x) (/ 1 x)) (* (/ 1 y) (/ 1 y))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
11.081 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
11.081 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
11.082 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
11.082 * [taylor]: Taking taylor expansion of (pow x 2) in y
11.082 * [taylor]: Taking taylor expansion of x in y
11.082 * [backup-simplify]: Simplify x into x
11.082 * [backup-simplify]: Simplify (* x x) into (pow x 2)
11.082 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
11.082 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.082 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.082 * [taylor]: Taking taylor expansion of y in y
11.082 * [backup-simplify]: Simplify 0 into 0
11.082 * [backup-simplify]: Simplify 1 into 1
11.082 * [backup-simplify]: Simplify (* 1 1) into 1
11.083 * [backup-simplify]: Simplify (/ 1 1) into 1
11.083 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.083 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.083 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.083 * [taylor]: Taking taylor expansion of x in x
11.083 * [backup-simplify]: Simplify 0 into 0
11.083 * [backup-simplify]: Simplify 1 into 1
11.083 * [backup-simplify]: Simplify (* 1 1) into 1
11.084 * [backup-simplify]: Simplify (/ 1 1) into 1
11.084 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.084 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.084 * [taylor]: Taking taylor expansion of y in x
11.084 * [backup-simplify]: Simplify y into y
11.084 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.084 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.084 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.084 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.084 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.084 * [taylor]: Taking taylor expansion of x in x
11.084 * [backup-simplify]: Simplify 0 into 0
11.084 * [backup-simplify]: Simplify 1 into 1
11.085 * [backup-simplify]: Simplify (* 1 1) into 1
11.085 * [backup-simplify]: Simplify (/ 1 1) into 1
11.085 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.085 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.085 * [taylor]: Taking taylor expansion of y in x
11.085 * [backup-simplify]: Simplify y into y
11.085 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.085 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.086 * [backup-simplify]: Simplify (+ 1 0) into 1
11.086 * [taylor]: Taking taylor expansion of 1 in y
11.086 * [backup-simplify]: Simplify 1 into 1
11.087 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.087 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.088 * [backup-simplify]: Simplify (+ 0 0) into 0
11.088 * [taylor]: Taking taylor expansion of 0 in y
11.088 * [backup-simplify]: Simplify 0 into 0
11.089 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.089 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.090 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
11.090 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
11.090 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
11.090 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.090 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.090 * [taylor]: Taking taylor expansion of y in y
11.090 * [backup-simplify]: Simplify 0 into 0
11.090 * [backup-simplify]: Simplify 1 into 1
11.091 * [backup-simplify]: Simplify (* 1 1) into 1
11.091 * [backup-simplify]: Simplify (/ 1 1) into 1
11.091 * [backup-simplify]: Simplify (- 1) into -1
11.091 * [backup-simplify]: Simplify -1 into -1
11.092 * [backup-simplify]: Simplify 1 into 1
11.093 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
11.093 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.094 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
11.094 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
11.094 * [backup-simplify]: Simplify (- 0) into 0
11.095 * [backup-simplify]: Simplify (+ 0 0) into 0
11.095 * [taylor]: Taking taylor expansion of 0 in y
11.095 * [backup-simplify]: Simplify 0 into 0
11.095 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.096 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.096 * [backup-simplify]: Simplify (- 0) into 0
11.096 * [backup-simplify]: Simplify 0 into 0
11.096 * [backup-simplify]: Simplify 0 into 0
11.097 * [backup-simplify]: Simplify 0 into 0
11.098 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
11.099 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.099 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
11.100 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
11.100 * [backup-simplify]: Simplify (- 0) into 0
11.100 * [backup-simplify]: Simplify (+ 0 0) into 0
11.100 * [taylor]: Taking taylor expansion of 0 in y
11.101 * [backup-simplify]: Simplify 0 into 0
11.102 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.102 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.103 * [backup-simplify]: Simplify (- 0) into 0
11.103 * [backup-simplify]: Simplify 0 into 0
11.103 * [backup-simplify]: Simplify 0 into 0
11.103 * [backup-simplify]: Simplify 0 into 0
11.104 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
11.104 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (/ 1 (- x))) (* (/ 1 (- y)) (/ 1 (- y)))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
11.104 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
11.104 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
11.104 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
11.104 * [taylor]: Taking taylor expansion of (pow x 2) in y
11.104 * [taylor]: Taking taylor expansion of x in y
11.104 * [backup-simplify]: Simplify x into x
11.104 * [backup-simplify]: Simplify (* x x) into (pow x 2)
11.105 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
11.105 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.105 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.105 * [taylor]: Taking taylor expansion of y in y
11.105 * [backup-simplify]: Simplify 0 into 0
11.105 * [backup-simplify]: Simplify 1 into 1
11.105 * [backup-simplify]: Simplify (* 1 1) into 1
11.106 * [backup-simplify]: Simplify (/ 1 1) into 1
11.106 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.106 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.106 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.106 * [taylor]: Taking taylor expansion of x in x
11.106 * [backup-simplify]: Simplify 0 into 0
11.106 * [backup-simplify]: Simplify 1 into 1
11.107 * [backup-simplify]: Simplify (* 1 1) into 1
11.107 * [backup-simplify]: Simplify (/ 1 1) into 1
11.107 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.107 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.107 * [taylor]: Taking taylor expansion of y in x
11.107 * [backup-simplify]: Simplify y into y
11.107 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.108 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.108 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.108 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.108 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.108 * [taylor]: Taking taylor expansion of x in x
11.108 * [backup-simplify]: Simplify 0 into 0
11.108 * [backup-simplify]: Simplify 1 into 1
11.108 * [backup-simplify]: Simplify (* 1 1) into 1
11.109 * [backup-simplify]: Simplify (/ 1 1) into 1
11.109 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.109 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.109 * [taylor]: Taking taylor expansion of y in x
11.109 * [backup-simplify]: Simplify y into y
11.109 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.109 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.110 * [backup-simplify]: Simplify (+ 1 0) into 1
11.110 * [taylor]: Taking taylor expansion of 1 in y
11.110 * [backup-simplify]: Simplify 1 into 1
11.110 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.111 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.111 * [backup-simplify]: Simplify (+ 0 0) into 0
11.112 * [taylor]: Taking taylor expansion of 0 in y
11.112 * [backup-simplify]: Simplify 0 into 0
11.112 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.113 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.114 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
11.114 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
11.114 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
11.114 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.114 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.114 * [taylor]: Taking taylor expansion of y in y
11.114 * [backup-simplify]: Simplify 0 into 0
11.114 * [backup-simplify]: Simplify 1 into 1
11.114 * [backup-simplify]: Simplify (* 1 1) into 1
11.115 * [backup-simplify]: Simplify (/ 1 1) into 1
11.115 * [backup-simplify]: Simplify (- 1) into -1
11.115 * [backup-simplify]: Simplify -1 into -1
11.115 * [backup-simplify]: Simplify 1 into 1
11.116 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
11.117 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.117 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
11.118 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
11.118 * [backup-simplify]: Simplify (- 0) into 0
11.118 * [backup-simplify]: Simplify (+ 0 0) into 0
11.118 * [taylor]: Taking taylor expansion of 0 in y
11.118 * [backup-simplify]: Simplify 0 into 0
11.119 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.120 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.120 * [backup-simplify]: Simplify (- 0) into 0
11.120 * [backup-simplify]: Simplify 0 into 0
11.120 * [backup-simplify]: Simplify 0 into 0
11.121 * [backup-simplify]: Simplify 0 into 0
11.122 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
11.123 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.124 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
11.124 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
11.125 * [backup-simplify]: Simplify (- 0) into 0
11.125 * [backup-simplify]: Simplify (+ 0 0) into 0
11.125 * [taylor]: Taking taylor expansion of 0 in y
11.125 * [backup-simplify]: Simplify 0 into 0
11.126 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.127 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.128 * [backup-simplify]: Simplify (- 0) into 0
11.128 * [backup-simplify]: Simplify 0 into 0
11.128 * [backup-simplify]: Simplify 0 into 0
11.128 * [backup-simplify]: Simplify 0 into 0
11.128 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
11.128 * * * [progress]: simplifying candidates
11.129 * [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))
11.130 * * [simplify]: Extracting # 0 : cost  0
11.130 * * [simplify]: Extracting # 1 : cost  0
11.130 * * [simplify]: Extracting # 2 : cost  0
11.130 * * [simplify]: Extracting # 3 : cost  0
11.130 * * [simplify]: Extracting # 4 : cost  0
11.131 * * [simplify]: Extracting # 5 : cost  0
11.131 * * [simplify]: iteration  0 :  38  enodes  (cost  214 )
11.148 * * [simplify]: Extracting # 0 : cost  0
11.149 * * [simplify]: Extracting # 1 : cost  0
11.149 * * [simplify]: Extracting # 2 : cost  0
11.149 * * [simplify]: Extracting # 3 : cost  0
11.150 * * [simplify]: Extracting # 4 : cost  0
11.150 * * [simplify]: iteration  1 :  100  enodes  (cost  205 )
11.209 * * [simplify]: Extracting # 0 : cost  0
11.210 * * [simplify]: Extracting # 1 : cost  0
11.210 * * [simplify]: Extracting # 2 : cost  0
11.210 * * [simplify]: Extracting # 3 : cost  0
11.211 * * [simplify]: Extracting # 4 : cost  0
11.211 * * [simplify]: iteration  2 :  291  enodes  (cost  175 )
11.334 * * [simplify]: Extracting # 0 : cost  0
11.335 * * [simplify]: Extracting # 1 : cost  0
11.336 * * [simplify]: Extracting # 2 : cost  0
11.337 * * [simplify]: Extracting # 3 : cost  0
11.338 * * [simplify]: Extracting # 4 : cost  0
11.340 * * [simplify]: iteration  3 :  922  enodes  (cost  175 )
12.568 * * [simplify]: Extracting # 0 : cost  0
12.573 * * [simplify]: Extracting # 1 : cost  0
12.576 * * [simplify]: Extracting # 2 : cost  0
12.586 * * [simplify]: Extracting # 3 : cost  0
12.589 * * [simplify]: Extracting # 4 : cost  0
12.593 * * [simplify]: iteration  4 :  4017  enodes  (cost  170 )
14.539 * * [simplify]: Extracting # 0 : cost  0
14.543 * * [simplify]: Extracting # 1 : cost  0
14.548 * * [simplify]: iteration done:  5000  enodes  (cost  170 )
14.548 * [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)))
14.548 * * * [progress]: adding candidates to table
14.611 * * [progress]: iteration 2 / 4
14.611 * * * [progress]: picking best candidate
14.613 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
14.613 * * * [progress]: localizing error
14.624 * * * [progress]: generating rewritten candidates
14.624 * * * [progress]: generating series expansions
14.624 * * * [progress]: simplifying candidates
14.624 * [simplify]: Simplifying:
  
14.624 * * [simplify]: Extracting # 0 : cost  0
14.624 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
14.624 * * [simplify]: Extracting # 0 : cost  0
14.624 * * [simplify]: iteration done:  0  enodes  (cost  0 )
14.624 * [simplify]: Simplified to:
  
14.624 * * * [progress]: adding candidates to table
14.625 * [progress]: [Phase 3 of 3] Extracting.
14.627 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
14.628 * * [simplify]: Extracting # 0 : cost  0
14.628 * * [simplify]: Extracting # 1 : cost  0
14.628 * * [simplify]: Extracting # 2 : cost  0
14.628 * * [simplify]: Extracting # 3 : cost  0
14.628 * * [simplify]: Extracting # 4 : cost  0
14.628 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
14.628 * * [simplify]: Extracting # 0 : cost  0
14.628 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
14.629 * * [simplify]: Extracting # 0 : cost  0
14.629 * * [simplify]: iteration done:  7  enodes  (cost  7 )
14.629 * [simplify]: Simplified to:
  (* (+ x y) (- x y))
15.937 * [regime-testing]: Baseline error score: 0.0012501562695336917
15.939 * [regime-testing]: Oracle error score: 0.0012501562695336917
15.939 * [regime-testing]: End program error score: 0.0012501562695336917