31.843 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.028 * * * [progress]: [2/2] Setting up program.
0.032 * [progress]: [Phase 2 of 3] Improving.
0.032 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.032 * * [simplify]: iteration 0: 5 enodes
0.033 * * [simplify]: iteration 1: 10 enodes
0.035 * * [simplify]: iteration 2: 17 enodes
0.037 * * [simplify]: iteration 3: 32 enodes
0.043 * * [simplify]: iteration 4: 57 enodes
0.057 * * [simplify]: iteration 5: 128 enodes
0.082 * * [simplify]: iteration 6: 201 enodes
0.138 * * [simplify]: iteration 7: 367 enodes
0.399 * * [simplify]: iteration 8: 1179 enodes
2.613 * * [simplify]: iteration 9: 4084 enodes
4.685 * * [simplify]: iteration complete: 5002 enodes
4.685 * * [simplify]: Extracting #0: cost 1 inf + 0
4.686 * * [simplify]: Extracting #1: cost 166 inf + 0
4.691 * * [simplify]: Extracting #2: cost 895 inf + 2
4.706 * * [simplify]: Extracting #3: cost 702 inf + 29891
4.737 * * [simplify]: Extracting #4: cost 180 inf + 115226
4.785 * * [simplify]: Extracting #5: cost 4 inf + 156981
4.823 * * [simplify]: Extracting #6: cost 0 inf + 157867
4.867 * [simplify]: Simplified to:
  (* (- a b) (+ b a))
4.868 * * [progress]: iteration 1 / 4
4.868 * * * [progress]: picking best candidate
4.871 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
4.871 * * * [progress]: localizing error
4.878 * * * [progress]: generating rewritten candidates
4.878 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
4.884 * * * [progress]: generating series expansions
4.884 * * * * [progress]: [ 1 / 1 ] generating series at (2)
4.884 * [backup-simplify]: Simplify (- (* a a) (* b b)) into (- (pow a 2) (pow b 2))
4.884 * [approximate]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in (a b) around 0
4.884 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in b
4.884 * [taylor]: Taking taylor expansion of (pow a 2) in b
4.884 * [taylor]: Taking taylor expansion of a in b
4.884 * [backup-simplify]: Simplify a into a
4.884 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.884 * [taylor]: Taking taylor expansion of b in b
4.884 * [backup-simplify]: Simplify 0 into 0
4.884 * [backup-simplify]: Simplify 1 into 1
4.884 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
4.884 * [taylor]: Taking taylor expansion of (pow a 2) in a
4.884 * [taylor]: Taking taylor expansion of a in a
4.885 * [backup-simplify]: Simplify 0 into 0
4.885 * [backup-simplify]: Simplify 1 into 1
4.885 * [taylor]: Taking taylor expansion of (pow b 2) in a
4.885 * [taylor]: Taking taylor expansion of b in a
4.885 * [backup-simplify]: Simplify b into b
4.885 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
4.885 * [taylor]: Taking taylor expansion of (pow a 2) in a
4.885 * [taylor]: Taking taylor expansion of a in a
4.885 * [backup-simplify]: Simplify 0 into 0
4.885 * [backup-simplify]: Simplify 1 into 1
4.885 * [taylor]: Taking taylor expansion of (pow b 2) in a
4.885 * [taylor]: Taking taylor expansion of b in a
4.885 * [backup-simplify]: Simplify b into b
4.885 * [backup-simplify]: Simplify (* b b) into (pow b 2)
4.885 * [backup-simplify]: Simplify (- (pow b 2)) into (- (pow b 2))
4.885 * [backup-simplify]: Simplify (+ 0 (- (pow b 2))) into (- (pow b 2))
4.885 * [taylor]: Taking taylor expansion of (- (pow b 2)) in b
4.885 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.885 * [taylor]: Taking taylor expansion of b in b
4.885 * [backup-simplify]: Simplify 0 into 0
4.885 * [backup-simplify]: Simplify 1 into 1
4.885 * [backup-simplify]: Simplify (+ (* b 0) (* 0 b)) into 0
4.886 * [backup-simplify]: Simplify (- 0) into 0
4.886 * [backup-simplify]: Simplify (+ 0 0) into 0
4.886 * [taylor]: Taking taylor expansion of 0 in b
4.886 * [backup-simplify]: Simplify 0 into 0
4.886 * [backup-simplify]: Simplify 0 into 0
4.886 * [backup-simplify]: Simplify (* 1 1) into 1
4.886 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (* 0 b))) into 0
4.887 * [backup-simplify]: Simplify (- 0) into 0
4.887 * [backup-simplify]: Simplify (+ 1 0) into 1
4.887 * [taylor]: Taking taylor expansion of 1 in b
4.887 * [backup-simplify]: Simplify 1 into 1
4.887 * [backup-simplify]: Simplify 1 into 1
4.887 * [backup-simplify]: Simplify 0 into 0
4.887 * [backup-simplify]: Simplify (* 1 1) into 1
4.888 * [backup-simplify]: Simplify (- 1) into -1
4.888 * [backup-simplify]: Simplify -1 into -1
4.888 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.888 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (+ (* 0 0) (* 0 b)))) into 0
4.889 * [backup-simplify]: Simplify (- 0) into 0
4.889 * [backup-simplify]: Simplify (+ 0 0) into 0
4.889 * [taylor]: Taking taylor expansion of 0 in b
4.889 * [backup-simplify]: Simplify 0 into 0
4.889 * [backup-simplify]: Simplify 0 into 0
4.889 * [backup-simplify]: Simplify 0 into 0
4.889 * [backup-simplify]: Simplify 0 into 0
4.889 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.890 * [backup-simplify]: Simplify (- 0) into 0
4.890 * [backup-simplify]: Simplify 0 into 0
4.890 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.891 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 b))))) into 0
4.891 * [backup-simplify]: Simplify (- 0) into 0
4.891 * [backup-simplify]: Simplify (+ 0 0) into 0
4.891 * [taylor]: Taking taylor expansion of 0 in b
4.891 * [backup-simplify]: Simplify 0 into 0
4.891 * [backup-simplify]: Simplify 0 into 0
4.891 * [backup-simplify]: Simplify 0 into 0
4.892 * [backup-simplify]: Simplify (+ (* -1 (pow (* b 1) 2)) (* 1 (pow (* 1 a) 2))) into (- (pow a 2) (pow b 2))
4.892 * [backup-simplify]: Simplify (- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b))) into (- (/ 1 (pow a 2)) (/ 1 (pow b 2)))
4.892 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
4.892 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
4.892 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
4.892 * [taylor]: Taking taylor expansion of (pow a 2) in b
4.892 * [taylor]: Taking taylor expansion of a in b
4.892 * [backup-simplify]: Simplify a into a
4.892 * [backup-simplify]: Simplify (* a a) into (pow a 2)
4.892 * [backup-simplify]: Simplify (/ 1 (pow a 2)) into (/ 1 (pow a 2))
4.892 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
4.892 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.892 * [taylor]: Taking taylor expansion of b in b
4.892 * [backup-simplify]: Simplify 0 into 0
4.892 * [backup-simplify]: Simplify 1 into 1
4.892 * [backup-simplify]: Simplify (* 1 1) into 1
4.893 * [backup-simplify]: Simplify (/ 1 1) into 1
4.893 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
4.893 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
4.893 * [taylor]: Taking taylor expansion of (pow a 2) in a
4.893 * [taylor]: Taking taylor expansion of a in a
4.893 * [backup-simplify]: Simplify 0 into 0
4.893 * [backup-simplify]: Simplify 1 into 1
4.893 * [backup-simplify]: Simplify (* 1 1) into 1
4.893 * [backup-simplify]: Simplify (/ 1 1) into 1
4.893 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
4.893 * [taylor]: Taking taylor expansion of (pow b 2) in a
4.893 * [taylor]: Taking taylor expansion of b in a
4.893 * [backup-simplify]: Simplify b into b
4.893 * [backup-simplify]: Simplify (* b b) into (pow b 2)
4.893 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
4.893 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
4.893 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
4.893 * [taylor]: Taking taylor expansion of (pow a 2) in a
4.894 * [taylor]: Taking taylor expansion of a in a
4.894 * [backup-simplify]: Simplify 0 into 0
4.894 * [backup-simplify]: Simplify 1 into 1
4.894 * [backup-simplify]: Simplify (* 1 1) into 1
4.894 * [backup-simplify]: Simplify (/ 1 1) into 1
4.894 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
4.894 * [taylor]: Taking taylor expansion of (pow b 2) in a
4.894 * [taylor]: Taking taylor expansion of b in a
4.894 * [backup-simplify]: Simplify b into b
4.894 * [backup-simplify]: Simplify (* b b) into (pow b 2)
4.894 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
4.895 * [backup-simplify]: Simplify (+ 1 0) into 1
4.895 * [taylor]: Taking taylor expansion of 1 in b
4.895 * [backup-simplify]: Simplify 1 into 1
4.895 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.895 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.896 * [backup-simplify]: Simplify (+ 0 0) into 0
4.896 * [taylor]: Taking taylor expansion of 0 in b
4.896 * [backup-simplify]: Simplify 0 into 0
4.896 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.897 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.897 * [backup-simplify]: Simplify (- (/ 1 (pow b 2))) into (- (/ 1 (pow b 2)))
4.897 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow b 2)))) into (- (/ 1 (pow b 2)))
4.897 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
4.897 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
4.897 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.897 * [taylor]: Taking taylor expansion of b in b
4.897 * [backup-simplify]: Simplify 0 into 0
4.897 * [backup-simplify]: Simplify 1 into 1
4.897 * [backup-simplify]: Simplify (* 1 1) into 1
4.897 * [backup-simplify]: Simplify (/ 1 1) into 1
4.898 * [backup-simplify]: Simplify (- 1) into -1
4.898 * [backup-simplify]: Simplify -1 into -1
4.898 * [backup-simplify]: Simplify 1 into 1
4.898 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
4.899 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.899 * [backup-simplify]: Simplify (+ (* b 0) (* 0 b)) into 0
4.899 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))))) into 0
4.899 * [backup-simplify]: Simplify (- 0) into 0
4.900 * [backup-simplify]: Simplify (+ 0 0) into 0
4.900 * [taylor]: Taking taylor expansion of 0 in b
4.900 * [backup-simplify]: Simplify 0 into 0
4.900 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.901 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.901 * [backup-simplify]: Simplify (- 0) into 0
4.901 * [backup-simplify]: Simplify 0 into 0
4.901 * [backup-simplify]: Simplify 0 into 0
4.901 * [backup-simplify]: Simplify 0 into 0
4.902 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
4.902 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.902 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (* 0 b))) into 0
4.903 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))) (* 0 (/ 0 (pow b 2))))) into 0
4.903 * [backup-simplify]: Simplify (- 0) into 0
4.903 * [backup-simplify]: Simplify (+ 0 0) into 0
4.903 * [taylor]: Taking taylor expansion of 0 in b
4.903 * [backup-simplify]: Simplify 0 into 0
4.904 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.904 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.904 * [backup-simplify]: Simplify (- 0) into 0
4.904 * [backup-simplify]: Simplify 0 into 0
4.904 * [backup-simplify]: Simplify 0 into 0
4.905 * [backup-simplify]: Simplify 0 into 0
4.905 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 a))) 2)) (* -1 (pow (* (/ 1 (/ 1 b)) 1) 2))) into (- (pow a 2) (pow b 2))
4.905 * [backup-simplify]: Simplify (- (* (/ 1 (- a)) (/ 1 (- a))) (* (/ 1 (- b)) (/ 1 (- b)))) into (- (/ 1 (pow a 2)) (/ 1 (pow b 2)))
4.905 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
4.905 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
4.905 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
4.905 * [taylor]: Taking taylor expansion of (pow a 2) in b
4.905 * [taylor]: Taking taylor expansion of a in b
4.905 * [backup-simplify]: Simplify a into a
4.905 * [backup-simplify]: Simplify (* a a) into (pow a 2)
4.905 * [backup-simplify]: Simplify (/ 1 (pow a 2)) into (/ 1 (pow a 2))
4.905 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
4.905 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.905 * [taylor]: Taking taylor expansion of b in b
4.905 * [backup-simplify]: Simplify 0 into 0
4.905 * [backup-simplify]: Simplify 1 into 1
4.906 * [backup-simplify]: Simplify (* 1 1) into 1
4.906 * [backup-simplify]: Simplify (/ 1 1) into 1
4.906 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
4.906 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
4.906 * [taylor]: Taking taylor expansion of (pow a 2) in a
4.906 * [taylor]: Taking taylor expansion of a in a
4.906 * [backup-simplify]: Simplify 0 into 0
4.906 * [backup-simplify]: Simplify 1 into 1
4.906 * [backup-simplify]: Simplify (* 1 1) into 1
4.906 * [backup-simplify]: Simplify (/ 1 1) into 1
4.906 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
4.906 * [taylor]: Taking taylor expansion of (pow b 2) in a
4.906 * [taylor]: Taking taylor expansion of b in a
4.906 * [backup-simplify]: Simplify b into b
4.906 * [backup-simplify]: Simplify (* b b) into (pow b 2)
4.907 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
4.907 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
4.907 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
4.907 * [taylor]: Taking taylor expansion of (pow a 2) in a
4.907 * [taylor]: Taking taylor expansion of a in a
4.907 * [backup-simplify]: Simplify 0 into 0
4.907 * [backup-simplify]: Simplify 1 into 1
4.907 * [backup-simplify]: Simplify (* 1 1) into 1
4.907 * [backup-simplify]: Simplify (/ 1 1) into 1
4.907 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
4.907 * [taylor]: Taking taylor expansion of (pow b 2) in a
4.907 * [taylor]: Taking taylor expansion of b in a
4.907 * [backup-simplify]: Simplify b into b
4.907 * [backup-simplify]: Simplify (* b b) into (pow b 2)
4.907 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
4.908 * [backup-simplify]: Simplify (+ 1 0) into 1
4.908 * [taylor]: Taking taylor expansion of 1 in b
4.908 * [backup-simplify]: Simplify 1 into 1
4.908 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.908 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.909 * [backup-simplify]: Simplify (+ 0 0) into 0
4.909 * [taylor]: Taking taylor expansion of 0 in b
4.909 * [backup-simplify]: Simplify 0 into 0
4.909 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.910 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.910 * [backup-simplify]: Simplify (- (/ 1 (pow b 2))) into (- (/ 1 (pow b 2)))
4.910 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow b 2)))) into (- (/ 1 (pow b 2)))
4.910 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
4.910 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
4.910 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.910 * [taylor]: Taking taylor expansion of b in b
4.910 * [backup-simplify]: Simplify 0 into 0
4.910 * [backup-simplify]: Simplify 1 into 1
4.911 * [backup-simplify]: Simplify (* 1 1) into 1
4.911 * [backup-simplify]: Simplify (/ 1 1) into 1
4.912 * [backup-simplify]: Simplify (- 1) into -1
4.912 * [backup-simplify]: Simplify -1 into -1
4.912 * [backup-simplify]: Simplify 1 into 1
4.913 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
4.913 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.914 * [backup-simplify]: Simplify (+ (* b 0) (* 0 b)) into 0
4.914 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))))) into 0
4.914 * [backup-simplify]: Simplify (- 0) into 0
4.915 * [backup-simplify]: Simplify (+ 0 0) into 0
4.915 * [taylor]: Taking taylor expansion of 0 in b
4.915 * [backup-simplify]: Simplify 0 into 0
4.915 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.915 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.916 * [backup-simplify]: Simplify (- 0) into 0
4.916 * [backup-simplify]: Simplify 0 into 0
4.916 * [backup-simplify]: Simplify 0 into 0
4.916 * [backup-simplify]: Simplify 0 into 0
4.916 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
4.917 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.917 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (* 0 b))) into 0
4.917 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))) (* 0 (/ 0 (pow b 2))))) into 0
4.918 * [backup-simplify]: Simplify (- 0) into 0
4.918 * [backup-simplify]: Simplify (+ 0 0) into 0
4.918 * [taylor]: Taking taylor expansion of 0 in b
4.918 * [backup-simplify]: Simplify 0 into 0
4.919 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.919 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.919 * [backup-simplify]: Simplify (- 0) into 0
4.919 * [backup-simplify]: Simplify 0 into 0
4.919 * [backup-simplify]: Simplify 0 into 0
4.919 * [backup-simplify]: Simplify 0 into 0
4.920 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- a)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- b))) 1) 2))) into (- (pow a 2) (pow b 2))
4.920 * * * [progress]: simplifying candidates
4.920 * [simplify]: Simplifying:
  (/ (exp (* a a)) (exp (* b b)))
  (log (- (* a a) (* b b)))
  (exp (- (* a a) (* b b)))
  (* (cbrt (- (* a a) (* b b))) (cbrt (- (* a a) (* b b))))
  (cbrt (- (* a a) (* b b)))
  (* (* (- (* a a) (* b b)) (- (* a a) (* b b))) (- (* a a) (* b b)))
  (sqrt (- (* a a) (* b b)))
  (sqrt (- (* a a) (* b b)))
  (- (pow (* a a) 3) (pow (* b b) 3))
  (+ (* (* a a) (* a a)) (+ (* (* b b) (* b b)) (* (* a a) (* b b))))
  (- (* b b))
  (- (* (* a a) (* a a)) (* (* b b) (* b b)))
  (+ (* a a) (* b b))
  (+ a b)
  (- a b)
  (- (* b b))
  (- (pow a 2) (pow b 2))
  (- (pow a 2) (pow b 2))
  (- (pow a 2) (pow b 2))
4.920 * * [simplify]: iteration 0: 33 enodes
4.932 * * [simplify]: iteration 1: 96 enodes
4.968 * * [simplify]: iteration 2: 288 enodes
5.092 * * [simplify]: iteration 3: 1264 enodes
5.679 * * [simplify]: iteration complete: 5000 enodes
5.679 * * [simplify]: Extracting #0: cost 14 inf + 0
5.680 * * [simplify]: Extracting #1: cost 315 inf + 0
5.684 * * [simplify]: Extracting #2: cost 1410 inf + 935
5.709 * * [simplify]: Extracting #3: cost 1591 inf + 55438
5.805 * * [simplify]: Extracting #4: cost 448 inf + 300547
5.916 * * [simplify]: Extracting #5: cost 90 inf + 396428
6.006 * * [simplify]: Extracting #6: cost 14 inf + 414697
6.127 * * [simplify]: Extracting #7: cost 0 inf + 419118
6.221 * [simplify]: Simplified to:
  (exp (* (+ a b) (- a b)))
  (log (* (+ a b) (- a b)))
  (exp (* (+ a b) (- a b)))
  (* (cbrt (* (+ a b) (- a b))) (cbrt (* (+ a b) (- a b))))
  (cbrt (* (+ a b) (- a b)))
  (* (* (+ a b) (- a b)) (* (* (+ a b) (- a b)) (* (+ a b) (- a b))))
  (sqrt (* (+ a b) (- a b)))
  (sqrt (* (+ a b) (- a b)))
  (* (- (* a (* a a)) (* (* b b) b)) (+ (* a (* a a)) (* (* b b) b)))
  (+ (* (* a a) (* a a)) (* (* b b) (+ (* b b) (* a a))))
  (- (* b b))
  (- (* (* a a) (* a a)) (* (* b b) (* b b)))
  (+ (* b b) (* a a))
  (+ b a)
  (- a b)
  (- (* b b))
  (* (+ a b) (- a b))
  (* (+ a b) (- a b))
  (* (+ a b) (- a b))
6.222 * * * [progress]: adding candidates to table
6.282 * * [progress]: iteration 2 / 4
6.282 * * * [progress]: picking best candidate
6.289 * * * * [pick]: Picked  #<alt (λ (a b) (* (+ a b) (- a b)))>
6.289 * * * [progress]: localizing error
6.302 * * * [progress]: generating rewritten candidates
6.303 * * * [progress]: generating series expansions
6.303 * * * [progress]: simplifying candidates
6.303 * [simplify]: Simplifying:
  
6.303 * * [simplify]: iteration 0: 0 enodes
6.303 * * [simplify]: iteration complete: 0 enodes
6.303 * * [simplify]: Extracting #0: cost 0 inf + 0
6.303 * [simplify]: Simplified to:
  
6.303 * * * [progress]: adding candidates to table
6.304 * [progress]: [Phase 3 of 3] Extracting.
6.310 * [simplify]: Simplifying:
  (* (+ a b) (- a b))
6.310 * * [simplify]: iteration 0: 5 enodes
6.311 * * [simplify]: iteration 1: 7 enodes
6.311 * * [simplify]: iteration complete: 7 enodes
6.311 * * [simplify]: Extracting #0: cost 1 inf + 0
6.311 * * [simplify]: Extracting #1: cost 3 inf + 0
6.311 * * [simplify]: Extracting #2: cost 5 inf + 0
6.311 * * [simplify]: Extracting #3: cost 3 inf + 2
6.311 * * [simplify]: Extracting #4: cost 0 inf + 208
6.312 * [simplify]: Simplified to:
  (* (+ b a) (- a b))
7.703 * [regime-testing]: Baseline error score: 0.0012501562695336917
7.720 * [regime-testing]: Oracle error score: 0.0012501562695336917
7.720 * [regime-testing]: End program error score: 0.0012501562695336917
7.835 * [regime-testing]: Target error score: 0.0012501562695336917