41.501 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.024 * * * [progress]: [2/2] Setting up program.
0.026 * [progress]: [Phase 2 of 3] Improving.
0.026 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.027 * * [simplify]: Extracting # 0 : cost  0
0.027 * * [simplify]: Extracting # 1 : cost  0
0.027 * * [simplify]: Extracting # 2 : cost  0
0.027 * * [simplify]: Extracting # 3 : cost  0
0.027 * * [simplify]: Extracting # 4 : cost  0
0.027 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.028 * * [simplify]: Extracting # 0 : cost  0
0.028 * * [simplify]: Extracting # 1 : cost  0
0.028 * * [simplify]: Extracting # 2 : cost  0
0.028 * * [simplify]: iteration  1 :  11  enodes  (cost  7 )
0.031 * * [simplify]: Extracting # 0 : cost  0
0.031 * * [simplify]: Extracting # 1 : cost  0
0.031 * * [simplify]: Extracting # 2 : cost  0
0.031 * * [simplify]: iteration  2 :  18  enodes  (cost  7 )
0.036 * * [simplify]: Extracting # 0 : cost  0
0.036 * * [simplify]: Extracting # 1 : cost  0
0.036 * * [simplify]: Extracting # 2 : cost  0
0.036 * * [simplify]: iteration  3 :  35  enodes  (cost  7 )
0.047 * * [simplify]: Extracting # 0 : cost  0
0.048 * * [simplify]: Extracting # 1 : cost  0
0.048 * * [simplify]: Extracting # 2 : cost  0
0.048 * * [simplify]: iteration  4 :  67  enodes  (cost  7 )
0.076 * * [simplify]: Extracting # 0 : cost  0
0.076 * * [simplify]: Extracting # 1 : cost  0
0.076 * * [simplify]: Extracting # 2 : cost  0
0.083 * * [simplify]: iteration  5 :  160  enodes  (cost  7 )
0.153 * * [simplify]: Extracting # 0 : cost  0
0.153 * * [simplify]: Extracting # 1 : cost  0
0.154 * * [simplify]: Extracting # 2 : cost  0
0.154 * * [simplify]: iteration  6 :  271  enodes  (cost  7 )
0.324 * * [simplify]: Extracting # 0 : cost  0
0.324 * * [simplify]: Extracting # 1 : cost  0
0.325 * * [simplify]: Extracting # 2 : cost  0
0.325 * * [simplify]: Extracting # 3 : cost  0
0.326 * * [simplify]: iteration  7 :  514  enodes  (cost  7 )
1.368 * * [simplify]: Extracting # 0 : cost  0
1.371 * * [simplify]: Extracting # 1 : cost  0
1.374 * * [simplify]: Extracting # 2 : cost  0
1.376 * * [simplify]: Extracting # 3 : cost  0
1.378 * * [simplify]: Extracting # 4 : cost  0
1.380 * * [simplify]: iteration  8 :  1901  enodes  (cost  7 )
11.634 * * [simplify]: Extracting # 0 : cost  0
11.662 * * [simplify]: Extracting # 1 : cost  0
11.669 * * [simplify]: Extracting # 2 : cost  0
11.675 * * [simplify]: Extracting # 3 : cost  0
11.681 * * [simplify]: Extracting # 4 : cost  0
11.687 * * [simplify]: iteration done:  5001  enodes  (cost  7 )
11.687 * [simplify]: Simplified to:
  (- (* x x) (* y y))
11.687 * * [progress]: iteration 1 / 4
11.687 * * * [progress]: picking best candidate
11.690 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
11.690 * * * [progress]: localizing error
11.700 * * * [progress]: generating rewritten candidates
11.700 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
11.718 * * * [progress]: generating series expansions
11.718 * * * * [progress]: [ 1 / 1 ] generating series at (2)
11.718 * [backup-simplify]: Simplify (- (* x x) (* y y)) into (- (pow x 2) (pow y 2))
11.718 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
11.718 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
11.718 * [taylor]: Taking taylor expansion of (pow x 2) in y
11.718 * [taylor]: Taking taylor expansion of x in y
11.718 * [backup-simplify]: Simplify x into x
11.718 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.718 * [taylor]: Taking taylor expansion of y in y
11.718 * [backup-simplify]: Simplify 0 into 0
11.718 * [backup-simplify]: Simplify 1 into 1
11.718 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
11.718 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.718 * [taylor]: Taking taylor expansion of x in x
11.718 * [backup-simplify]: Simplify 0 into 0
11.718 * [backup-simplify]: Simplify 1 into 1
11.718 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.718 * [taylor]: Taking taylor expansion of y in x
11.718 * [backup-simplify]: Simplify y into y
11.718 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
11.718 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.718 * [taylor]: Taking taylor expansion of x in x
11.719 * [backup-simplify]: Simplify 0 into 0
11.719 * [backup-simplify]: Simplify 1 into 1
11.719 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.719 * [taylor]: Taking taylor expansion of y in x
11.719 * [backup-simplify]: Simplify y into y
11.719 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.719 * [backup-simplify]: Simplify (- (pow y 2)) into (- (pow y 2))
11.719 * [backup-simplify]: Simplify (+ 0 (- (pow y 2))) into (- (pow y 2))
11.719 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
11.719 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.719 * [taylor]: Taking taylor expansion of y in y
11.719 * [backup-simplify]: Simplify 0 into 0
11.719 * [backup-simplify]: Simplify 1 into 1
11.719 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
11.720 * [backup-simplify]: Simplify (- 0) into 0
11.720 * [backup-simplify]: Simplify (+ 0 0) into 0
11.720 * [taylor]: Taking taylor expansion of 0 in y
11.720 * [backup-simplify]: Simplify 0 into 0
11.720 * [backup-simplify]: Simplify 0 into 0
11.721 * [backup-simplify]: Simplify (* 1 1) into 1
11.721 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
11.722 * [backup-simplify]: Simplify (- 0) into 0
11.722 * [backup-simplify]: Simplify (+ 1 0) into 1
11.722 * [taylor]: Taking taylor expansion of 1 in y
11.722 * [backup-simplify]: Simplify 1 into 1
11.722 * [backup-simplify]: Simplify 1 into 1
11.722 * [backup-simplify]: Simplify 0 into 0
11.723 * [backup-simplify]: Simplify (* 1 1) into 1
11.723 * [backup-simplify]: Simplify (- 1) into -1
11.723 * [backup-simplify]: Simplify -1 into -1
11.724 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.725 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
11.725 * [backup-simplify]: Simplify (- 0) into 0
11.725 * [backup-simplify]: Simplify (+ 0 0) into 0
11.725 * [taylor]: Taking taylor expansion of 0 in y
11.725 * [backup-simplify]: Simplify 0 into 0
11.725 * [backup-simplify]: Simplify 0 into 0
11.726 * [backup-simplify]: Simplify 0 into 0
11.726 * [backup-simplify]: Simplify 0 into 0
11.726 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.727 * [backup-simplify]: Simplify (- 0) into 0
11.727 * [backup-simplify]: Simplify 0 into 0
11.728 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.729 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
11.729 * [backup-simplify]: Simplify (- 0) into 0
11.729 * [backup-simplify]: Simplify (+ 0 0) into 0
11.729 * [taylor]: Taking taylor expansion of 0 in y
11.729 * [backup-simplify]: Simplify 0 into 0
11.729 * [backup-simplify]: Simplify 0 into 0
11.730 * [backup-simplify]: Simplify 0 into 0
11.730 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
11.730 * [backup-simplify]: Simplify (- (* (/ 1 x) (/ 1 x)) (* (/ 1 y) (/ 1 y))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
11.730 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
11.730 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
11.730 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
11.730 * [taylor]: Taking taylor expansion of (pow x 2) in y
11.730 * [taylor]: Taking taylor expansion of x in y
11.730 * [backup-simplify]: Simplify x into x
11.730 * [backup-simplify]: Simplify (* x x) into (pow x 2)
11.731 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
11.731 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.731 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.731 * [taylor]: Taking taylor expansion of y in y
11.731 * [backup-simplify]: Simplify 0 into 0
11.731 * [backup-simplify]: Simplify 1 into 1
11.731 * [backup-simplify]: Simplify (* 1 1) into 1
11.731 * [backup-simplify]: Simplify (/ 1 1) into 1
11.732 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.732 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.732 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.732 * [taylor]: Taking taylor expansion of x in x
11.732 * [backup-simplify]: Simplify 0 into 0
11.732 * [backup-simplify]: Simplify 1 into 1
11.732 * [backup-simplify]: Simplify (* 1 1) into 1
11.732 * [backup-simplify]: Simplify (/ 1 1) into 1
11.732 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.732 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.732 * [taylor]: Taking taylor expansion of y in x
11.732 * [backup-simplify]: Simplify y into y
11.733 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.733 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.733 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.733 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.733 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.733 * [taylor]: Taking taylor expansion of x in x
11.733 * [backup-simplify]: Simplify 0 into 0
11.733 * [backup-simplify]: Simplify 1 into 1
11.733 * [backup-simplify]: Simplify (* 1 1) into 1
11.734 * [backup-simplify]: Simplify (/ 1 1) into 1
11.734 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.734 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.734 * [taylor]: Taking taylor expansion of y in x
11.734 * [backup-simplify]: Simplify y into y
11.734 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.734 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.734 * [backup-simplify]: Simplify (+ 1 0) into 1
11.734 * [taylor]: Taking taylor expansion of 1 in y
11.734 * [backup-simplify]: Simplify 1 into 1
11.735 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.736 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.736 * [backup-simplify]: Simplify (+ 0 0) into 0
11.736 * [taylor]: Taking taylor expansion of 0 in y
11.736 * [backup-simplify]: Simplify 0 into 0
11.737 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.738 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.738 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
11.738 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
11.738 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
11.739 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.739 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.739 * [taylor]: Taking taylor expansion of y in y
11.739 * [backup-simplify]: Simplify 0 into 0
11.739 * [backup-simplify]: Simplify 1 into 1
11.739 * [backup-simplify]: Simplify (* 1 1) into 1
11.739 * [backup-simplify]: Simplify (/ 1 1) into 1
11.740 * [backup-simplify]: Simplify (- 1) into -1
11.740 * [backup-simplify]: Simplify -1 into -1
11.740 * [backup-simplify]: Simplify 1 into 1
11.741 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
11.742 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.742 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
11.743 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
11.743 * [backup-simplify]: Simplify (- 0) into 0
11.743 * [backup-simplify]: Simplify (+ 0 0) into 0
11.743 * [taylor]: Taking taylor expansion of 0 in y
11.744 * [backup-simplify]: Simplify 0 into 0
11.744 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.745 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.746 * [backup-simplify]: Simplify (- 0) into 0
11.746 * [backup-simplify]: Simplify 0 into 0
11.746 * [backup-simplify]: Simplify 0 into 0
11.746 * [backup-simplify]: Simplify 0 into 0
11.747 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
11.748 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.748 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
11.749 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
11.749 * [backup-simplify]: Simplify (- 0) into 0
11.750 * [backup-simplify]: Simplify (+ 0 0) into 0
11.750 * [taylor]: Taking taylor expansion of 0 in y
11.750 * [backup-simplify]: Simplify 0 into 0
11.751 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.752 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.752 * [backup-simplify]: Simplify (- 0) into 0
11.752 * [backup-simplify]: Simplify 0 into 0
11.752 * [backup-simplify]: Simplify 0 into 0
11.752 * [backup-simplify]: Simplify 0 into 0
11.753 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
11.753 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (/ 1 (- x))) (* (/ 1 (- y)) (/ 1 (- y)))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
11.753 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
11.753 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
11.753 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
11.754 * [taylor]: Taking taylor expansion of (pow x 2) in y
11.754 * [taylor]: Taking taylor expansion of x in y
11.754 * [backup-simplify]: Simplify x into x
11.754 * [backup-simplify]: Simplify (* x x) into (pow x 2)
11.754 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
11.754 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.754 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.754 * [taylor]: Taking taylor expansion of y in y
11.754 * [backup-simplify]: Simplify 0 into 0
11.754 * [backup-simplify]: Simplify 1 into 1
11.754 * [backup-simplify]: Simplify (* 1 1) into 1
11.755 * [backup-simplify]: Simplify (/ 1 1) into 1
11.755 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.755 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.755 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.755 * [taylor]: Taking taylor expansion of x in x
11.755 * [backup-simplify]: Simplify 0 into 0
11.755 * [backup-simplify]: Simplify 1 into 1
11.755 * [backup-simplify]: Simplify (* 1 1) into 1
11.756 * [backup-simplify]: Simplify (/ 1 1) into 1
11.756 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.756 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.756 * [taylor]: Taking taylor expansion of y in x
11.756 * [backup-simplify]: Simplify y into y
11.756 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.756 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.756 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.756 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.756 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.756 * [taylor]: Taking taylor expansion of x in x
11.756 * [backup-simplify]: Simplify 0 into 0
11.756 * [backup-simplify]: Simplify 1 into 1
11.757 * [backup-simplify]: Simplify (* 1 1) into 1
11.757 * [backup-simplify]: Simplify (/ 1 1) into 1
11.757 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.757 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.757 * [taylor]: Taking taylor expansion of y in x
11.757 * [backup-simplify]: Simplify y into y
11.757 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.758 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.758 * [backup-simplify]: Simplify (+ 1 0) into 1
11.758 * [taylor]: Taking taylor expansion of 1 in y
11.758 * [backup-simplify]: Simplify 1 into 1
11.759 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.760 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.760 * [backup-simplify]: Simplify (+ 0 0) into 0
11.760 * [taylor]: Taking taylor expansion of 0 in y
11.760 * [backup-simplify]: Simplify 0 into 0
11.761 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.762 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.762 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
11.763 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
11.763 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
11.763 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.763 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.763 * [taylor]: Taking taylor expansion of y in y
11.763 * [backup-simplify]: Simplify 0 into 0
11.763 * [backup-simplify]: Simplify 1 into 1
11.763 * [backup-simplify]: Simplify (* 1 1) into 1
11.764 * [backup-simplify]: Simplify (/ 1 1) into 1
11.764 * [backup-simplify]: Simplify (- 1) into -1
11.764 * [backup-simplify]: Simplify -1 into -1
11.764 * [backup-simplify]: Simplify 1 into 1
11.765 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
11.766 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.766 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
11.767 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
11.767 * [backup-simplify]: Simplify (- 0) into 0
11.767 * [backup-simplify]: Simplify (+ 0 0) into 0
11.767 * [taylor]: Taking taylor expansion of 0 in y
11.767 * [backup-simplify]: Simplify 0 into 0
11.768 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.769 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.769 * [backup-simplify]: Simplify (- 0) into 0
11.769 * [backup-simplify]: Simplify 0 into 0
11.769 * [backup-simplify]: Simplify 0 into 0
11.769 * [backup-simplify]: Simplify 0 into 0
11.771 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
11.771 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.772 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
11.772 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
11.773 * [backup-simplify]: Simplify (- 0) into 0
11.773 * [backup-simplify]: Simplify (+ 0 0) into 0
11.773 * [taylor]: Taking taylor expansion of 0 in y
11.773 * [backup-simplify]: Simplify 0 into 0
11.774 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.775 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.776 * [backup-simplify]: Simplify (- 0) into 0
11.776 * [backup-simplify]: Simplify 0 into 0
11.776 * [backup-simplify]: Simplify 0 into 0
11.776 * [backup-simplify]: Simplify 0 into 0
11.776 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
11.776 * * * [progress]: simplifying candidates
11.777 * [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))
11.778 * * [simplify]: Extracting # 0 : cost  0
11.778 * * [simplify]: Extracting # 1 : cost  0
11.778 * * [simplify]: Extracting # 2 : cost  0
11.778 * * [simplify]: Extracting # 3 : cost  0
11.778 * * [simplify]: Extracting # 4 : cost  0
11.778 * * [simplify]: Extracting # 5 : cost  0
11.778 * * [simplify]: iteration  0 :  38  enodes  (cost  214 )
11.802 * * [simplify]: Extracting # 0 : cost  0
11.802 * * [simplify]: Extracting # 1 : cost  0
11.803 * * [simplify]: Extracting # 2 : cost  0
11.803 * * [simplify]: Extracting # 3 : cost  0
11.803 * * [simplify]: Extracting # 4 : cost  0
11.803 * * [simplify]: iteration  1 :  100  enodes  (cost  205 )
11.878 * * [simplify]: Extracting # 0 : cost  0
11.879 * * [simplify]: Extracting # 1 : cost  0
11.879 * * [simplify]: Extracting # 2 : cost  0
11.880 * * [simplify]: Extracting # 3 : cost  0
11.880 * * [simplify]: Extracting # 4 : cost  0
11.881 * * [simplify]: iteration  2 :  291  enodes  (cost  175 )
12.044 * * [simplify]: Extracting # 0 : cost  0
12.045 * * [simplify]: Extracting # 1 : cost  0
12.046 * * [simplify]: Extracting # 2 : cost  0
12.047 * * [simplify]: Extracting # 3 : cost  0
12.048 * * [simplify]: Extracting # 4 : cost  0
12.048 * * [simplify]: iteration  3 :  922  enodes  (cost  175 )
13.267 * * [simplify]: Extracting # 0 : cost  0
13.271 * * [simplify]: Extracting # 1 : cost  0
13.275 * * [simplify]: Extracting # 2 : cost  0
13.278 * * [simplify]: Extracting # 3 : cost  0
13.285 * * [simplify]: Extracting # 4 : cost  0
13.291 * * [simplify]: iteration  4 :  4017  enodes  (cost  170 )
14.777 * * [simplify]: Extracting # 0 : cost  0
14.786 * * [simplify]: Extracting # 1 : cost  0
14.795 * * [simplify]: iteration done:  5000  enodes  (cost  170 )
14.795 * [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)))
14.795 * * * [progress]: adding candidates to table
14.844 * * [progress]: iteration 2 / 4
14.844 * * * [progress]: picking best candidate
14.845 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
14.846 * * * [progress]: localizing error
14.851 * * * [progress]: generating rewritten candidates
14.851 * * * [progress]: generating series expansions
14.851 * * * [progress]: simplifying candidates
14.851 * [simplify]: Simplifying:
  
14.851 * * [simplify]: Extracting # 0 : cost  0
14.851 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
14.851 * * [simplify]: Extracting # 0 : cost  0
14.851 * * [simplify]: iteration done:  0  enodes  (cost  0 )
14.851 * [simplify]: Simplified to:
  
14.851 * * * [progress]: adding candidates to table
14.852 * [progress]: [Phase 3 of 3] Extracting.
14.853 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
14.853 * * [simplify]: Extracting # 0 : cost  0
14.853 * * [simplify]: Extracting # 1 : cost  0
14.853 * * [simplify]: Extracting # 2 : cost  0
14.853 * * [simplify]: Extracting # 3 : cost  0
14.853 * * [simplify]: Extracting # 4 : cost  0
14.853 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
14.854 * * [simplify]: Extracting # 0 : cost  0
14.854 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
14.854 * * [simplify]: Extracting # 0 : cost  0
14.854 * * [simplify]: iteration done:  7  enodes  (cost  7 )
14.854 * [simplify]: Simplified to:
  (* (+ x y) (- x y))
16.435 * [regime-testing]: Baseline error score: 0.0010001250156269534
16.439 * [regime-testing]: Oracle error score: 0.0010001250156269534
16.439 * [regime-testing]: End program error score: 0.0010001250156269534