8.652 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.033 * * * [progress]: [2/2] Setting up program.
0.035 * [progress]: [Phase 2 of 3] Improving.
0.036 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
0.036 * * [simplify]: Extracting # 0 : cost  0
0.036 * * [simplify]: Extracting # 1 : cost  0
0.036 * * [simplify]: Extracting # 2 : cost  0
0.036 * * [simplify]: Extracting # 3 : cost  0
0.036 * * [simplify]: Extracting # 4 : cost  0
0.036 * * [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 :  9  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 :  24  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  3 :  53  enodes  (cost  7 )
0.077 * * [simplify]: Extracting # 0 : cost  0
0.077 * * [simplify]: Extracting # 1 : cost  0
0.077 * * [simplify]: Extracting # 2 : cost  0
0.077 * * [simplify]: iteration  4 :  122  enodes  (cost  7 )
0.119 * * [simplify]: Extracting # 0 : cost  0
0.119 * * [simplify]: Extracting # 1 : cost  0
0.119 * * [simplify]: Extracting # 2 : cost  0
0.119 * * [simplify]: iteration  5 :  176  enodes  (cost  7 )
0.191 * * [simplify]: Extracting # 0 : cost  0
0.191 * * [simplify]: Extracting # 1 : cost  0
0.192 * * [simplify]: Extracting # 2 : cost  0
0.192 * * [simplify]: iteration  6 :  261  enodes  (cost  7 )
0.300 * * [simplify]: Extracting # 0 : cost  0
0.301 * * [simplify]: Extracting # 1 : cost  0
0.301 * * [simplify]: Extracting # 2 : cost  0
0.301 * * [simplify]: Extracting # 3 : cost  0
0.301 * * [simplify]: Extracting # 4 : cost  0
0.302 * * [simplify]: iteration  7 :  399  enodes  (cost  7 )
0.626 * * [simplify]: Extracting # 0 : cost  0
0.628 * * [simplify]: Extracting # 1 : cost  0
0.629 * * [simplify]: Extracting # 2 : cost  0
0.629 * * [simplify]: iteration  8 :  787  enodes  (cost  7 )
2.579 * * [simplify]: Extracting # 0 : cost  0
2.584 * * [simplify]: Extracting # 1 : cost  0
2.586 * * [simplify]: Extracting # 2 : cost  0
2.588 * * [simplify]: Extracting # 3 : cost  0
2.589 * * [simplify]: Extracting # 4 : cost  0
2.591 * * [simplify]: iteration  9 :  1977  enodes  (cost  7 )
4.783 * * [simplify]: Extracting # 0 : cost  0
4.789 * * [simplify]: Extracting # 1 : cost  0
4.794 * * [simplify]: Extracting # 2 : cost  0
4.798 * * [simplify]: Extracting # 3 : cost  0
4.802 * * [simplify]: Extracting # 4 : cost  0
4.808 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
4.808 * [simplify]: Simplified to:
  (* (+ x y) (- x y))
4.808 * * [progress]: iteration 1 / 4
4.808 * * * [progress]: picking best candidate
4.810 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
4.811 * * * [progress]: localizing error
4.821 * * * [progress]: generating rewritten candidates
4.821 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
4.902 * * * [progress]: generating series expansions
4.902 * * * * [progress]: [ 1 / 1 ] generating series at (2)
4.902 * [backup-simplify]: Simplify (* (+ x y) (- x y)) into (* (+ x y) (- x y))
4.902 * [approximate]: Taking taylor expansion of (* (+ x y) (- x y)) in (x y) around 0
4.902 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
4.902 * [taylor]: Taking taylor expansion of (+ x y) in y
4.902 * [taylor]: Taking taylor expansion of x in y
4.902 * [backup-simplify]: Simplify x into x
4.902 * [taylor]: Taking taylor expansion of y in y
4.902 * [backup-simplify]: Simplify 0 into 0
4.902 * [backup-simplify]: Simplify 1 into 1
4.902 * [taylor]: Taking taylor expansion of (- x y) in y
4.902 * [taylor]: Taking taylor expansion of x in y
4.902 * [backup-simplify]: Simplify x into x
4.902 * [taylor]: Taking taylor expansion of y in y
4.902 * [backup-simplify]: Simplify 0 into 0
4.902 * [backup-simplify]: Simplify 1 into 1
4.902 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
4.902 * [taylor]: Taking taylor expansion of (+ x y) in x
4.902 * [taylor]: Taking taylor expansion of x in x
4.902 * [backup-simplify]: Simplify 0 into 0
4.903 * [backup-simplify]: Simplify 1 into 1
4.903 * [taylor]: Taking taylor expansion of y in x
4.903 * [backup-simplify]: Simplify y into y
4.903 * [taylor]: Taking taylor expansion of (- x y) in x
4.903 * [taylor]: Taking taylor expansion of x in x
4.903 * [backup-simplify]: Simplify 0 into 0
4.903 * [backup-simplify]: Simplify 1 into 1
4.903 * [taylor]: Taking taylor expansion of y in x
4.903 * [backup-simplify]: Simplify y into y
4.903 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
4.903 * [taylor]: Taking taylor expansion of (+ x y) in x
4.903 * [taylor]: Taking taylor expansion of x in x
4.903 * [backup-simplify]: Simplify 0 into 0
4.903 * [backup-simplify]: Simplify 1 into 1
4.903 * [taylor]: Taking taylor expansion of y in x
4.903 * [backup-simplify]: Simplify y into y
4.903 * [taylor]: Taking taylor expansion of (- x y) in x
4.903 * [taylor]: Taking taylor expansion of x in x
4.903 * [backup-simplify]: Simplify 0 into 0
4.903 * [backup-simplify]: Simplify 1 into 1
4.903 * [taylor]: Taking taylor expansion of y in x
4.903 * [backup-simplify]: Simplify y into y
4.903 * [backup-simplify]: Simplify (+ 0 y) into y
4.903 * [backup-simplify]: Simplify (- y) into (- y)
4.903 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
4.903 * [backup-simplify]: Simplify (* y (- y)) into (* -1 (pow y 2))
4.903 * [taylor]: Taking taylor expansion of (* -1 (pow y 2)) in y
4.903 * [taylor]: Taking taylor expansion of -1 in y
4.903 * [backup-simplify]: Simplify -1 into -1
4.903 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.903 * [taylor]: Taking taylor expansion of y in y
4.904 * [backup-simplify]: Simplify 0 into 0
4.904 * [backup-simplify]: Simplify 1 into 1
4.904 * [backup-simplify]: Simplify (- 0) into 0
4.905 * [backup-simplify]: Simplify (+ 1 0) into 1
4.905 * [backup-simplify]: Simplify (+ 1 0) into 1
4.905 * [backup-simplify]: Simplify (+ (* y 1) (* 1 (- y))) into 0
4.905 * [taylor]: Taking taylor expansion of 0 in y
4.905 * [backup-simplify]: Simplify 0 into 0
4.905 * [backup-simplify]: Simplify 0 into 0
4.906 * [backup-simplify]: Simplify (- 0) into 0
4.906 * [backup-simplify]: Simplify (+ 0 0) into 0
4.906 * [backup-simplify]: Simplify (+ 0 0) into 0
4.907 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 1) (* 0 (- y)))) into 1
4.907 * [taylor]: Taking taylor expansion of 1 in y
4.907 * [backup-simplify]: Simplify 1 into 1
4.907 * [backup-simplify]: Simplify 1 into 1
4.907 * [backup-simplify]: Simplify 0 into 0
4.907 * [backup-simplify]: Simplify (* 1 1) into 1
4.908 * [backup-simplify]: Simplify (* -1 1) into -1
4.908 * [backup-simplify]: Simplify -1 into -1
4.908 * [backup-simplify]: Simplify (- 0) into 0
4.909 * [backup-simplify]: Simplify (+ 0 0) into 0
4.909 * [backup-simplify]: Simplify (+ 0 0) into 0
4.910 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 1) (* 0 (- y))))) into 0
4.910 * [taylor]: Taking taylor expansion of 0 in y
4.910 * [backup-simplify]: Simplify 0 into 0
4.910 * [backup-simplify]: Simplify 0 into 0
4.910 * [backup-simplify]: Simplify 0 into 0
4.910 * [backup-simplify]: Simplify 0 into 0
4.911 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.911 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 1)) into 0
4.911 * [backup-simplify]: Simplify 0 into 0
4.912 * [backup-simplify]: Simplify (- 0) into 0
4.912 * [backup-simplify]: Simplify (+ 0 0) into 0
4.912 * [backup-simplify]: Simplify (+ 0 0) into 0
4.914 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 1) (* 0 (- y)))))) into 0
4.914 * [taylor]: Taking taylor expansion of 0 in y
4.914 * [backup-simplify]: Simplify 0 into 0
4.914 * [backup-simplify]: Simplify 0 into 0
4.914 * [backup-simplify]: Simplify 0 into 0
4.914 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
4.914 * [backup-simplify]: Simplify (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) into (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x)))
4.914 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in (x y) around 0
4.914 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
4.914 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
4.915 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.915 * [taylor]: Taking taylor expansion of x in y
4.915 * [backup-simplify]: Simplify x into x
4.915 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.915 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.915 * [taylor]: Taking taylor expansion of y in y
4.915 * [backup-simplify]: Simplify 0 into 0
4.915 * [backup-simplify]: Simplify 1 into 1
4.915 * [backup-simplify]: Simplify (/ 1 1) into 1
4.915 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
4.915 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.915 * [taylor]: Taking taylor expansion of y in y
4.915 * [backup-simplify]: Simplify 0 into 0
4.915 * [backup-simplify]: Simplify 1 into 1
4.916 * [backup-simplify]: Simplify (/ 1 1) into 1
4.916 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.916 * [taylor]: Taking taylor expansion of x in y
4.916 * [backup-simplify]: Simplify x into x
4.916 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.916 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
4.916 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.916 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.916 * [taylor]: Taking taylor expansion of x in x
4.916 * [backup-simplify]: Simplify 0 into 0
4.916 * [backup-simplify]: Simplify 1 into 1
4.917 * [backup-simplify]: Simplify (/ 1 1) into 1
4.917 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.917 * [taylor]: Taking taylor expansion of y in x
4.917 * [backup-simplify]: Simplify y into y
4.917 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.917 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.917 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.917 * [taylor]: Taking taylor expansion of y in x
4.917 * [backup-simplify]: Simplify y into y
4.917 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.917 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.917 * [taylor]: Taking taylor expansion of x in x
4.917 * [backup-simplify]: Simplify 0 into 0
4.917 * [backup-simplify]: Simplify 1 into 1
4.917 * [backup-simplify]: Simplify (/ 1 1) into 1
4.917 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
4.917 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.918 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.918 * [taylor]: Taking taylor expansion of x in x
4.918 * [backup-simplify]: Simplify 0 into 0
4.918 * [backup-simplify]: Simplify 1 into 1
4.918 * [backup-simplify]: Simplify (/ 1 1) into 1
4.918 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.918 * [taylor]: Taking taylor expansion of y in x
4.918 * [backup-simplify]: Simplify y into y
4.918 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.918 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.918 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.918 * [taylor]: Taking taylor expansion of y in x
4.918 * [backup-simplify]: Simplify y into y
4.918 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.918 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.918 * [taylor]: Taking taylor expansion of x in x
4.918 * [backup-simplify]: Simplify 0 into 0
4.918 * [backup-simplify]: Simplify 1 into 1
4.919 * [backup-simplify]: Simplify (/ 1 1) into 1
4.919 * [backup-simplify]: Simplify (+ 1 0) into 1
4.920 * [backup-simplify]: Simplify (+ 0 1) into 1
4.920 * [backup-simplify]: Simplify (* 1 1) into 1
4.920 * [taylor]: Taking taylor expansion of 1 in y
4.920 * [backup-simplify]: Simplify 1 into 1
4.921 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.921 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
4.922 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.922 * [backup-simplify]: Simplify (- (/ 1 y)) into (- (/ 1 y))
4.922 * [backup-simplify]: Simplify (+ 0 (- (/ 1 y))) into (- (/ 1 y))
4.922 * [backup-simplify]: Simplify (+ (* 1 (/ 1 y)) (* (- (/ 1 y)) 1)) into 0
4.922 * [taylor]: Taking taylor expansion of 0 in y
4.922 * [backup-simplify]: Simplify 0 into 0
4.922 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.923 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.924 * [backup-simplify]: Simplify (+ 0 0) into 0
4.925 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.925 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.925 * [backup-simplify]: Simplify (- 0) into 0
4.926 * [backup-simplify]: Simplify (+ 0 0) into 0
4.927 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) (/ 1 y)) (* 0 1))) into (- (/ 1 (pow y 2)))
4.927 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
4.927 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.927 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.927 * [taylor]: Taking taylor expansion of y in y
4.927 * [backup-simplify]: Simplify 0 into 0
4.927 * [backup-simplify]: Simplify 1 into 1
4.928 * [backup-simplify]: Simplify (* 1 1) into 1
4.928 * [backup-simplify]: Simplify (/ 1 1) into 1
4.928 * [backup-simplify]: Simplify (- 1) into -1
4.928 * [backup-simplify]: Simplify -1 into -1
4.929 * [backup-simplify]: Simplify 1 into 1
4.929 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.930 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.930 * [backup-simplify]: Simplify (+ 0 0) into 0
4.931 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.931 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.932 * [backup-simplify]: Simplify (- 0) into 0
4.932 * [backup-simplify]: Simplify (+ 0 0) into 0
4.933 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) 0) (+ (* 0 (/ 1 y)) (* 0 1)))) into 0
4.933 * [taylor]: Taking taylor expansion of 0 in y
4.933 * [backup-simplify]: Simplify 0 into 0
4.934 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.934 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.935 * [backup-simplify]: Simplify (- 0) into 0
4.935 * [backup-simplify]: Simplify 0 into 0
4.935 * [backup-simplify]: Simplify 0 into 0
4.935 * [backup-simplify]: Simplify 0 into 0
4.935 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.936 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.937 * [backup-simplify]: Simplify (+ 0 0) into 0
4.937 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.938 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.938 * [backup-simplify]: Simplify (- 0) into 0
4.938 * [backup-simplify]: Simplify (+ 0 0) into 0
4.940 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 1))))) into 0
4.940 * [taylor]: Taking taylor expansion of 0 in y
4.940 * [backup-simplify]: Simplify 0 into 0
4.941 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.942 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.942 * [backup-simplify]: Simplify (- 0) into 0
4.942 * [backup-simplify]: Simplify 0 into 0
4.942 * [backup-simplify]: Simplify 0 into 0
4.942 * [backup-simplify]: Simplify 0 into 0
4.943 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
4.943 * [backup-simplify]: Simplify (* (+ (/ 1 (- x)) (/ 1 (- y))) (- (/ 1 (- x)) (/ 1 (- y)))) into (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))))
4.943 * [approximate]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in (x y) around 0
4.944 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in y
4.944 * [taylor]: Taking taylor expansion of -1 in y
4.944 * [backup-simplify]: Simplify -1 into -1
4.944 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
4.944 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
4.944 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.944 * [taylor]: Taking taylor expansion of y in y
4.944 * [backup-simplify]: Simplify 0 into 0
4.944 * [backup-simplify]: Simplify 1 into 1
4.944 * [backup-simplify]: Simplify (/ 1 1) into 1
4.944 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.944 * [taylor]: Taking taylor expansion of x in y
4.944 * [backup-simplify]: Simplify x into x
4.944 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.944 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
4.944 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.945 * [taylor]: Taking taylor expansion of y in y
4.945 * [backup-simplify]: Simplify 0 into 0
4.945 * [backup-simplify]: Simplify 1 into 1
4.945 * [backup-simplify]: Simplify (/ 1 1) into 1
4.945 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.945 * [taylor]: Taking taylor expansion of x in y
4.945 * [backup-simplify]: Simplify x into x
4.945 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.945 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
4.945 * [taylor]: Taking taylor expansion of -1 in x
4.945 * [backup-simplify]: Simplify -1 into -1
4.945 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
4.945 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.945 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.945 * [taylor]: Taking taylor expansion of y in x
4.945 * [backup-simplify]: Simplify y into y
4.946 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.946 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.946 * [taylor]: Taking taylor expansion of x in x
4.946 * [backup-simplify]: Simplify 0 into 0
4.946 * [backup-simplify]: Simplify 1 into 1
4.946 * [backup-simplify]: Simplify (/ 1 1) into 1
4.946 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.946 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.946 * [taylor]: Taking taylor expansion of y in x
4.946 * [backup-simplify]: Simplify y into y
4.946 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.946 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.946 * [taylor]: Taking taylor expansion of x in x
4.946 * [backup-simplify]: Simplify 0 into 0
4.946 * [backup-simplify]: Simplify 1 into 1
4.947 * [backup-simplify]: Simplify (/ 1 1) into 1
4.947 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
4.947 * [taylor]: Taking taylor expansion of -1 in x
4.947 * [backup-simplify]: Simplify -1 into -1
4.947 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
4.947 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.947 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.947 * [taylor]: Taking taylor expansion of y in x
4.947 * [backup-simplify]: Simplify y into y
4.947 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.947 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.947 * [taylor]: Taking taylor expansion of x in x
4.947 * [backup-simplify]: Simplify 0 into 0
4.947 * [backup-simplify]: Simplify 1 into 1
4.948 * [backup-simplify]: Simplify (/ 1 1) into 1
4.948 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.948 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.948 * [taylor]: Taking taylor expansion of y in x
4.948 * [backup-simplify]: Simplify y into y
4.948 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.948 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.948 * [taylor]: Taking taylor expansion of x in x
4.948 * [backup-simplify]: Simplify 0 into 0
4.948 * [backup-simplify]: Simplify 1 into 1
4.948 * [backup-simplify]: Simplify (/ 1 1) into 1
4.949 * [backup-simplify]: Simplify (+ 0 1) into 1
4.949 * [backup-simplify]: Simplify (- 1) into -1
4.949 * [backup-simplify]: Simplify (+ 0 -1) into -1
4.950 * [backup-simplify]: Simplify (* 1 -1) into -1
4.950 * [backup-simplify]: Simplify (* -1 -1) into 1
4.950 * [taylor]: Taking taylor expansion of 1 in y
4.950 * [backup-simplify]: Simplify 1 into 1
4.951 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.951 * [backup-simplify]: Simplify (- 0) into 0
4.951 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
4.952 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.952 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
4.952 * [backup-simplify]: Simplify (+ (* 1 (/ 1 y)) (* (/ 1 y) -1)) into 0
4.953 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 -1)) into 0
4.953 * [taylor]: Taking taylor expansion of 0 in y
4.953 * [backup-simplify]: Simplify 0 into 0
4.953 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.954 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.955 * [backup-simplify]: Simplify (- 0) into 0
4.955 * [backup-simplify]: Simplify (+ 0 0) into 0
4.955 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.956 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.957 * [backup-simplify]: Simplify (+ 0 0) into 0
4.958 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) (/ 1 y)) (* 0 -1))) into (/ 1 (pow y 2))
4.959 * [backup-simplify]: Simplify (+ (* -1 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))) into (- (/ 1 (pow y 2)))
4.959 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
4.959 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.959 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.959 * [taylor]: Taking taylor expansion of y in y
4.959 * [backup-simplify]: Simplify 0 into 0
4.959 * [backup-simplify]: Simplify 1 into 1
4.959 * [backup-simplify]: Simplify (* 1 1) into 1
4.960 * [backup-simplify]: Simplify (/ 1 1) into 1
4.960 * [backup-simplify]: Simplify (- 1) into -1
4.960 * [backup-simplify]: Simplify -1 into -1
4.960 * [backup-simplify]: Simplify 1 into 1
4.961 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.961 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.962 * [backup-simplify]: Simplify (- 0) into 0
4.962 * [backup-simplify]: Simplify (+ 0 0) into 0
4.962 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.963 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.964 * [backup-simplify]: Simplify (+ 0 0) into 0
4.965 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 (/ 1 y)) (* 0 -1)))) into 0
4.966 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1)))) into 0
4.966 * [taylor]: Taking taylor expansion of 0 in y
4.966 * [backup-simplify]: Simplify 0 into 0
4.967 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.967 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.968 * [backup-simplify]: Simplify (- 0) into 0
4.968 * [backup-simplify]: Simplify 0 into 0
4.968 * [backup-simplify]: Simplify 0 into 0
4.968 * [backup-simplify]: Simplify 0 into 0
4.968 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.969 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.969 * [backup-simplify]: Simplify (- 0) into 0
4.970 * [backup-simplify]: Simplify (+ 0 0) into 0
4.970 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.971 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.971 * [backup-simplify]: Simplify (+ 0 0) into 0
4.972 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 -1))))) into 0
4.974 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))))) into 0
4.974 * [taylor]: Taking taylor expansion of 0 in y
4.974 * [backup-simplify]: Simplify 0 into 0
4.975 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.976 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.976 * [backup-simplify]: Simplify (- 0) into 0
4.976 * [backup-simplify]: Simplify 0 into 0
4.976 * [backup-simplify]: Simplify 0 into 0
4.976 * [backup-simplify]: Simplify 0 into 0
4.977 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
4.977 * * * [progress]: simplifying candidates
4.978 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
  (+ (log (+ x y)) (log (- x y)))
  (log (* (+ x y) (- x y)))
  (exp (* (+ x y) (- x y)))
  (* (* (* (+ x y) (+ x y)) (+ x y)) (* (* (- x y) (- x y)) (- x y)))
  (* (cbrt (* (+ x y) (- x y))) (cbrt (* (+ x y) (- x y))))
  (cbrt (* (+ x y) (- x y)))
  (* (* (* (+ x y) (- x y)) (* (+ x y) (- x y))) (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (* (+ (pow x 3) (pow y 3)) (- (pow x 3) (pow y 3)))
  (* (+ (* x x) (- (* y y) (* x y))) (+ (* x x) (+ (* y y) (* x y))))
  (* (+ (pow x 3) (pow y 3)) (- (* x x) (* y y)))
  (* (+ (* x x) (- (* y y) (* x y))) (+ x y))
  (* (- (* x x) (* y y)) (- (pow x 3) (pow y 3)))
  (* (- x y) (+ (* x x) (+ (* y y) (* x y))))
  (* (- (* x x) (* y y)) (- (* x x) (* y y)))
  (* (- x y) (+ x y))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* (+ x y) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (+ x y) (sqrt (- x y)))
  (* (+ x y) 1)
  (* (+ x y) (+ (sqrt x) (sqrt y)))
  (* (+ x y) 1)
  (* (cbrt (+ x y)) (- x y))
  (* (sqrt (+ x y)) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- (pow x 3) (pow y 3)))
  (* (+ x y) (- (* x x) (* y y)))
  (* (+ (pow x 3) (pow y 3)) (- x y))
  (* (- (* x x) (* y y)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
4.980 * * [simplify]: Extracting # 0 : cost  0
4.980 * * [simplify]: Extracting # 1 : cost  0
4.980 * * [simplify]: Extracting # 2 : cost  0
4.980 * * [simplify]: Extracting # 3 : cost  0
4.981 * * [simplify]: Extracting # 4 : cost  0
4.985 * * [simplify]: Extracting # 5 : cost  0
4.985 * * [simplify]: Extracting # 6 : cost  0
4.985 * * [simplify]: iteration  0 :  70  enodes  (cost  436 )
5.011 * * [simplify]: Extracting # 0 : cost  0
5.011 * * [simplify]: Extracting # 1 : cost  0
5.011 * * [simplify]: Extracting # 2 : cost  0
5.011 * * [simplify]: Extracting # 3 : cost  0
5.011 * * [simplify]: Extracting # 4 : cost  0
5.012 * * [simplify]: iteration  1 :  192  enodes  (cost  423 )
5.131 * * [simplify]: Extracting # 0 : cost  0
5.133 * * [simplify]: Extracting # 1 : cost  0
5.135 * * [simplify]: Extracting # 2 : cost  0
5.136 * * [simplify]: Extracting # 3 : cost  0
5.138 * * [simplify]: Extracting # 4 : cost  0
5.140 * * [simplify]: iteration  2 :  840  enodes  (cost  395 )
6.297 * * [simplify]: Extracting # 0 : cost  0
6.311 * * [simplify]: Extracting # 1 : cost  0
6.319 * * [simplify]: Extracting # 2 : cost  0
6.326 * * [simplify]: Extracting # 3 : cost  0
6.333 * * [simplify]: Extracting # 4 : cost  0
6.340 * * [simplify]: iteration  3 :  3985  enodes  (cost  395 )
8.104 * * [simplify]: Extracting # 0 : cost  0
8.114 * * [simplify]: Extracting # 1 : cost  0
8.123 * * [simplify]: Extracting # 2 : cost  0
8.131 * * [simplify]: Extracting # 3 : cost  0
8.139 * * [simplify]: Extracting # 4 : cost  0
8.148 * * [simplify]: iteration done:  5001  enodes  (cost  395 )
8.148 * [simplify]: Simplified to:
  (- (pow x 2) (pow y 2))
  (log (* (+ x y) (- x y)))
  (log (* (+ x y) (- x y)))
  (exp (* (+ x y) (- x y)))
  (pow (- (pow x 2) (pow y 2)) 3)
  (* (cbrt (* (+ x y) (- x y))) (cbrt (* (+ x y) (- x y))))
  (cbrt (* (+ x y) (- x y)))
  (pow (- (pow x 2) (pow y 2)) 3)
  (sqrt (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (* (+ (pow x 3) (pow y 3)) (- (pow x 3) (pow y 3)))
  (* (+ (* y (- y x)) (* x x)) (+ (* y (+ x y)) (* x x)))
  (* (+ (pow x 3) (pow y 3)) (- (* x x) (* y y)))
  (* (+ (* y (- y x)) (* x x)) (+ x y))
  (* (- (* x x) (* y y)) (- (pow x 3) (pow y 3)))
  (* (+ (* y (+ x y)) (* x x)) (- x y))
  (* (- x y) (* (+ x y) (- (* x x) (* y y))))
  (- (pow x 2) (pow y 2))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (+ x y) (sqrt (- x y)))
  (+ x y)
  (* (+ x y) (+ (sqrt x) (sqrt y)))
  (+ x y)
  (* (cbrt (+ x y)) (- x y))
  (* (sqrt (+ x y)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (* (+ x y) (- (pow x 3) (pow y 3)))
  (* (+ x y) (- (* x x) (* y y)))
  (* (- x y) (+ (pow x 3) (pow y 3)))
  (* (- (pow x 2) (pow y 2)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
8.149 * * * [progress]: adding candidates to table
8.286 * * [progress]: iteration 2 / 4
8.287 * * * [progress]: picking best candidate
8.291 * * * * [pick]: Picked  #<alt (λ (x y) (pow (- (pow x 2) (pow y 2)) 1))>
8.291 * * * [progress]: localizing error
8.308 * * * [progress]: generating rewritten candidates
8.308 * * * [progress]: generating series expansions
8.308 * * * [progress]: simplifying candidates
8.308 * [simplify]: Simplifying:
  
8.308 * * [simplify]: Extracting # 0 : cost  0
8.308 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
8.308 * * [simplify]: Extracting # 0 : cost  0
8.308 * * [simplify]: iteration done:  0  enodes  (cost  0 )
8.308 * [simplify]: Simplified to:
  
8.308 * * * [progress]: adding candidates to table
8.308 * [progress]: [Phase 3 of 3] Extracting.
8.310 * [simplify]: Simplifying:
  (pow (- (pow x 2) (pow y 2)) 1)
8.310 * * [simplify]: Extracting # 0 : cost  0
8.310 * * [simplify]: Extracting # 1 : cost  0
8.310 * * [simplify]: Extracting # 2 : cost  0
8.310 * * [simplify]: Extracting # 3 : cost  0
8.311 * * [simplify]: Extracting # 4 : cost  0
8.311 * * [simplify]: Extracting # 5 : cost  0
8.311 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
8.311 * * [simplify]: Extracting # 0 : cost  0
8.311 * * [simplify]: iteration  1 :  10  enodes  (cost  7 )
8.312 * * [simplify]: Extracting # 0 : cost  0
8.312 * * [simplify]: iteration done:  10  enodes  (cost  7 )
8.312 * [simplify]: Simplified to:
  (- (pow x 2) (pow y 2))
9.536 * [regime-testing]: Baseline error score: 0.007029481021439666
9.540 * [regime-testing]: Oracle error score: 0.007029481021439666
9.540 * [regime-testing]: End program error score: 0.007029481021439666