20.910 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.029 * * * [progress]: [2/2] Setting up program.
0.034 * [progress]: [Phase 2 of 3] Improving.
0.035 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.035 * * [simplify]: iteration 0: 5 enodes
0.037 * * [simplify]: iteration 1: 10 enodes
0.039 * * [simplify]: iteration 2: 17 enodes
0.044 * * [simplify]: iteration 3: 32 enodes
0.054 * * [simplify]: iteration 4: 57 enodes
0.076 * * [simplify]: iteration 5: 128 enodes
0.124 * * [simplify]: iteration 6: 201 enodes
0.188 * * [simplify]: iteration 7: 367 enodes
0.517 * * [simplify]: iteration 8: 1179 enodes
2.515 * * [simplify]: iteration 9: 4084 enodes
4.546 * * [simplify]: iteration complete: 5002 enodes
4.546 * * [simplify]: Extracting #0: cost 1 inf + 0
4.546 * * [simplify]: Extracting #1: cost 166 inf + 0
4.551 * * [simplify]: Extracting #2: cost 895 inf + 2
4.561 * * [simplify]: Extracting #3: cost 702 inf + 29891
4.592 * * [simplify]: Extracting #4: cost 180 inf + 115226
4.643 * * [simplify]: Extracting #5: cost 4 inf + 156981
4.698 * * [simplify]: Extracting #6: cost 0 inf + 157867
4.752 * [simplify]: Simplified to:
  (* (- a b) (+ b a))
4.753 * * [progress]: iteration 1 / 4
4.753 * * * [progress]: picking best candidate
4.758 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
4.758 * * * [progress]: localizing error
4.767 * * * [progress]: generating rewritten candidates
4.767 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
4.773 * * * [progress]: generating series expansions
4.773 * * * * [progress]: [ 1 / 1 ] generating series at (2)
4.773 * [backup-simplify]: Simplify (- (* a a) (* b b)) into (- (pow a 2) (pow b 2))
4.773 * [approximate]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in (a b) around 0
4.773 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in b
4.773 * [taylor]: Taking taylor expansion of (pow a 2) in b
4.774 * [taylor]: Taking taylor expansion of a in b
4.774 * [backup-simplify]: Simplify a into a
4.774 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.774 * [taylor]: Taking taylor expansion of b in b
4.774 * [backup-simplify]: Simplify 0 into 0
4.774 * [backup-simplify]: Simplify 1 into 1
4.774 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
4.774 * [taylor]: Taking taylor expansion of (pow a 2) in a
4.774 * [taylor]: Taking taylor expansion of a in a
4.774 * [backup-simplify]: Simplify 0 into 0
4.774 * [backup-simplify]: Simplify 1 into 1
4.774 * [taylor]: Taking taylor expansion of (pow b 2) in a
4.774 * [taylor]: Taking taylor expansion of b in a
4.774 * [backup-simplify]: Simplify b into b
4.774 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
4.774 * [taylor]: Taking taylor expansion of (pow a 2) in a
4.774 * [taylor]: Taking taylor expansion of a in a
4.774 * [backup-simplify]: Simplify 0 into 0
4.774 * [backup-simplify]: Simplify 1 into 1
4.774 * [taylor]: Taking taylor expansion of (pow b 2) in a
4.774 * [taylor]: Taking taylor expansion of b in a
4.774 * [backup-simplify]: Simplify b into b
4.774 * [backup-simplify]: Simplify (* b b) into (pow b 2)
4.774 * [backup-simplify]: Simplify (- (pow b 2)) into (- (pow b 2))
4.774 * [backup-simplify]: Simplify (+ 0 (- (pow b 2))) into (- (pow b 2))
4.774 * [taylor]: Taking taylor expansion of (- (pow b 2)) in b
4.774 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.774 * [taylor]: Taking taylor expansion of b in b
4.774 * [backup-simplify]: Simplify 0 into 0
4.774 * [backup-simplify]: Simplify 1 into 1
4.774 * [backup-simplify]: Simplify (+ (* b 0) (* 0 b)) into 0
4.775 * [backup-simplify]: Simplify (- 0) into 0
4.775 * [backup-simplify]: Simplify (+ 0 0) into 0
4.775 * [taylor]: Taking taylor expansion of 0 in b
4.775 * [backup-simplify]: Simplify 0 into 0
4.775 * [backup-simplify]: Simplify 0 into 0
4.775 * [backup-simplify]: Simplify (* 1 1) into 1
4.776 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (* 0 b))) into 0
4.776 * [backup-simplify]: Simplify (- 0) into 0
4.776 * [backup-simplify]: Simplify (+ 1 0) into 1
4.776 * [taylor]: Taking taylor expansion of 1 in b
4.776 * [backup-simplify]: Simplify 1 into 1
4.776 * [backup-simplify]: Simplify 1 into 1
4.776 * [backup-simplify]: Simplify 0 into 0
4.776 * [backup-simplify]: Simplify (* 1 1) into 1
4.777 * [backup-simplify]: Simplify (- 1) into -1
4.777 * [backup-simplify]: Simplify -1 into -1
4.777 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.778 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (+ (* 0 0) (* 0 b)))) into 0
4.778 * [backup-simplify]: Simplify (- 0) into 0
4.778 * [backup-simplify]: Simplify (+ 0 0) into 0
4.778 * [taylor]: Taking taylor expansion of 0 in b
4.778 * [backup-simplify]: Simplify 0 into 0
4.778 * [backup-simplify]: Simplify 0 into 0
4.778 * [backup-simplify]: Simplify 0 into 0
4.778 * [backup-simplify]: Simplify 0 into 0
4.779 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.779 * [backup-simplify]: Simplify (- 0) into 0
4.779 * [backup-simplify]: Simplify 0 into 0
4.779 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.780 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 b))))) into 0
4.780 * [backup-simplify]: Simplify (- 0) into 0
4.781 * [backup-simplify]: Simplify (+ 0 0) into 0
4.781 * [taylor]: Taking taylor expansion of 0 in b
4.781 * [backup-simplify]: Simplify 0 into 0
4.781 * [backup-simplify]: Simplify 0 into 0
4.781 * [backup-simplify]: Simplify 0 into 0
4.781 * [backup-simplify]: Simplify (+ (* -1 (pow (* b 1) 2)) (* 1 (pow (* 1 a) 2))) into (- (pow a 2) (pow b 2))
4.781 * [backup-simplify]: Simplify (- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b))) into (- (/ 1 (pow a 2)) (/ 1 (pow b 2)))
4.781 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
4.781 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
4.781 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
4.781 * [taylor]: Taking taylor expansion of (pow a 2) in b
4.781 * [taylor]: Taking taylor expansion of a in b
4.781 * [backup-simplify]: Simplify a into a
4.781 * [backup-simplify]: Simplify (* a a) into (pow a 2)
4.781 * [backup-simplify]: Simplify (/ 1 (pow a 2)) into (/ 1 (pow a 2))
4.781 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
4.781 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.781 * [taylor]: Taking taylor expansion of b in b
4.781 * [backup-simplify]: Simplify 0 into 0
4.781 * [backup-simplify]: Simplify 1 into 1
4.782 * [backup-simplify]: Simplify (* 1 1) into 1
4.782 * [backup-simplify]: Simplify (/ 1 1) into 1
4.782 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
4.782 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
4.782 * [taylor]: Taking taylor expansion of (pow a 2) in a
4.782 * [taylor]: Taking taylor expansion of a in a
4.782 * [backup-simplify]: Simplify 0 into 0
4.782 * [backup-simplify]: Simplify 1 into 1
4.782 * [backup-simplify]: Simplify (* 1 1) into 1
4.782 * [backup-simplify]: Simplify (/ 1 1) into 1
4.782 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
4.782 * [taylor]: Taking taylor expansion of (pow b 2) in a
4.782 * [taylor]: Taking taylor expansion of b in a
4.783 * [backup-simplify]: Simplify b into b
4.783 * [backup-simplify]: Simplify (* b b) into (pow b 2)
4.783 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
4.783 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
4.783 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
4.783 * [taylor]: Taking taylor expansion of (pow a 2) in a
4.783 * [taylor]: Taking taylor expansion of a in a
4.783 * [backup-simplify]: Simplify 0 into 0
4.783 * [backup-simplify]: Simplify 1 into 1
4.783 * [backup-simplify]: Simplify (* 1 1) into 1
4.783 * [backup-simplify]: Simplify (/ 1 1) into 1
4.783 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
4.783 * [taylor]: Taking taylor expansion of (pow b 2) in a
4.783 * [taylor]: Taking taylor expansion of b in a
4.783 * [backup-simplify]: Simplify b into b
4.783 * [backup-simplify]: Simplify (* b b) into (pow b 2)
4.783 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
4.784 * [backup-simplify]: Simplify (+ 1 0) into 1
4.784 * [taylor]: Taking taylor expansion of 1 in b
4.784 * [backup-simplify]: Simplify 1 into 1
4.784 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.785 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.785 * [backup-simplify]: Simplify (+ 0 0) into 0
4.785 * [taylor]: Taking taylor expansion of 0 in b
4.785 * [backup-simplify]: Simplify 0 into 0
4.785 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.786 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.786 * [backup-simplify]: Simplify (- (/ 1 (pow b 2))) into (- (/ 1 (pow b 2)))
4.786 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow b 2)))) into (- (/ 1 (pow b 2)))
4.786 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
4.786 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
4.786 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.786 * [taylor]: Taking taylor expansion of b in b
4.786 * [backup-simplify]: Simplify 0 into 0
4.786 * [backup-simplify]: Simplify 1 into 1
4.786 * [backup-simplify]: Simplify (* 1 1) into 1
4.787 * [backup-simplify]: Simplify (/ 1 1) into 1
4.787 * [backup-simplify]: Simplify (- 1) into -1
4.787 * [backup-simplify]: Simplify -1 into -1
4.787 * [backup-simplify]: Simplify 1 into 1
4.788 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
4.788 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.788 * [backup-simplify]: Simplify (+ (* b 0) (* 0 b)) into 0
4.788 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))))) into 0
4.789 * [backup-simplify]: Simplify (- 0) into 0
4.789 * [backup-simplify]: Simplify (+ 0 0) into 0
4.789 * [taylor]: Taking taylor expansion of 0 in b
4.789 * [backup-simplify]: Simplify 0 into 0
4.789 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.790 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.790 * [backup-simplify]: Simplify (- 0) into 0
4.790 * [backup-simplify]: Simplify 0 into 0
4.790 * [backup-simplify]: Simplify 0 into 0
4.790 * [backup-simplify]: Simplify 0 into 0
4.791 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
4.791 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.792 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (* 0 b))) into 0
4.792 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))) (* 0 (/ 0 (pow b 2))))) into 0
4.792 * [backup-simplify]: Simplify (- 0) into 0
4.792 * [backup-simplify]: Simplify (+ 0 0) into 0
4.792 * [taylor]: Taking taylor expansion of 0 in b
4.792 * [backup-simplify]: Simplify 0 into 0
4.793 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.793 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.796 * [backup-simplify]: Simplify (- 0) into 0
4.796 * [backup-simplify]: Simplify 0 into 0
4.796 * [backup-simplify]: Simplify 0 into 0
4.796 * [backup-simplify]: Simplify 0 into 0
4.797 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 a))) 2)) (* -1 (pow (* (/ 1 (/ 1 b)) 1) 2))) into (- (pow a 2) (pow b 2))
4.797 * [backup-simplify]: Simplify (- (* (/ 1 (- a)) (/ 1 (- a))) (* (/ 1 (- b)) (/ 1 (- b)))) into (- (/ 1 (pow a 2)) (/ 1 (pow b 2)))
4.797 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
4.797 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
4.797 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
4.797 * [taylor]: Taking taylor expansion of (pow a 2) in b
4.797 * [taylor]: Taking taylor expansion of a in b
4.797 * [backup-simplify]: Simplify a into a
4.797 * [backup-simplify]: Simplify (* a a) into (pow a 2)
4.797 * [backup-simplify]: Simplify (/ 1 (pow a 2)) into (/ 1 (pow a 2))
4.797 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
4.798 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.798 * [taylor]: Taking taylor expansion of b in b
4.798 * [backup-simplify]: Simplify 0 into 0
4.798 * [backup-simplify]: Simplify 1 into 1
4.798 * [backup-simplify]: Simplify (* 1 1) into 1
4.798 * [backup-simplify]: Simplify (/ 1 1) into 1
4.798 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
4.798 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
4.798 * [taylor]: Taking taylor expansion of (pow a 2) in a
4.798 * [taylor]: Taking taylor expansion of a in a
4.798 * [backup-simplify]: Simplify 0 into 0
4.798 * [backup-simplify]: Simplify 1 into 1
4.799 * [backup-simplify]: Simplify (* 1 1) into 1
4.799 * [backup-simplify]: Simplify (/ 1 1) into 1
4.799 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
4.799 * [taylor]: Taking taylor expansion of (pow b 2) in a
4.799 * [taylor]: Taking taylor expansion of b in a
4.799 * [backup-simplify]: Simplify b into b
4.799 * [backup-simplify]: Simplify (* b b) into (pow b 2)
4.799 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
4.799 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
4.799 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
4.799 * [taylor]: Taking taylor expansion of (pow a 2) in a
4.799 * [taylor]: Taking taylor expansion of a in a
4.799 * [backup-simplify]: Simplify 0 into 0
4.800 * [backup-simplify]: Simplify 1 into 1
4.800 * [backup-simplify]: Simplify (* 1 1) into 1
4.800 * [backup-simplify]: Simplify (/ 1 1) into 1
4.800 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
4.800 * [taylor]: Taking taylor expansion of (pow b 2) in a
4.800 * [taylor]: Taking taylor expansion of b in a
4.800 * [backup-simplify]: Simplify b into b
4.800 * [backup-simplify]: Simplify (* b b) into (pow b 2)
4.800 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
4.801 * [backup-simplify]: Simplify (+ 1 0) into 1
4.801 * [taylor]: Taking taylor expansion of 1 in b
4.801 * [backup-simplify]: Simplify 1 into 1
4.801 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.802 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.802 * [backup-simplify]: Simplify (+ 0 0) into 0
4.802 * [taylor]: Taking taylor expansion of 0 in b
4.802 * [backup-simplify]: Simplify 0 into 0
4.803 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.804 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.804 * [backup-simplify]: Simplify (- (/ 1 (pow b 2))) into (- (/ 1 (pow b 2)))
4.804 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow b 2)))) into (- (/ 1 (pow b 2)))
4.804 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
4.804 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
4.804 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.804 * [taylor]: Taking taylor expansion of b in b
4.804 * [backup-simplify]: Simplify 0 into 0
4.804 * [backup-simplify]: Simplify 1 into 1
4.805 * [backup-simplify]: Simplify (* 1 1) into 1
4.805 * [backup-simplify]: Simplify (/ 1 1) into 1
4.805 * [backup-simplify]: Simplify (- 1) into -1
4.805 * [backup-simplify]: Simplify -1 into -1
4.805 * [backup-simplify]: Simplify 1 into 1
4.806 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
4.807 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.807 * [backup-simplify]: Simplify (+ (* b 0) (* 0 b)) into 0
4.807 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))))) into 0
4.807 * [backup-simplify]: Simplify (- 0) into 0
4.808 * [backup-simplify]: Simplify (+ 0 0) into 0
4.808 * [taylor]: Taking taylor expansion of 0 in b
4.808 * [backup-simplify]: Simplify 0 into 0
4.808 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.809 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.809 * [backup-simplify]: Simplify (- 0) into 0
4.809 * [backup-simplify]: Simplify 0 into 0
4.809 * [backup-simplify]: Simplify 0 into 0
4.809 * [backup-simplify]: Simplify 0 into 0
4.810 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
4.811 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.812 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (* 0 b))) into 0
4.812 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))) (* 0 (/ 0 (pow b 2))))) into 0
4.812 * [backup-simplify]: Simplify (- 0) into 0
4.812 * [backup-simplify]: Simplify (+ 0 0) into 0
4.812 * [taylor]: Taking taylor expansion of 0 in b
4.812 * [backup-simplify]: Simplify 0 into 0
4.813 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.813 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.814 * [backup-simplify]: Simplify (- 0) into 0
4.814 * [backup-simplify]: Simplify 0 into 0
4.814 * [backup-simplify]: Simplify 0 into 0
4.814 * [backup-simplify]: Simplify 0 into 0
4.814 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- a)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- b))) 1) 2))) into (- (pow a 2) (pow b 2))
4.814 * * * [progress]: simplifying candidates
4.814 * [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))
4.815 * * [simplify]: iteration 0: 33 enodes
4.822 * * [simplify]: iteration 1: 96 enodes
4.849 * * [simplify]: iteration 2: 288 enodes
4.957 * * [simplify]: iteration 3: 1264 enodes
5.566 * * [simplify]: iteration complete: 5000 enodes
5.566 * * [simplify]: Extracting #0: cost 14 inf + 0
5.566 * * [simplify]: Extracting #1: cost 315 inf + 0
5.570 * * [simplify]: Extracting #2: cost 1410 inf + 935
5.588 * * [simplify]: Extracting #3: cost 1591 inf + 55438
5.645 * * [simplify]: Extracting #4: cost 448 inf + 300547
5.748 * * [simplify]: Extracting #5: cost 90 inf + 396428
5.873 * * [simplify]: Extracting #6: cost 14 inf + 414697
5.967 * * [simplify]: Extracting #7: cost 0 inf + 419118
6.095 * [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))
6.096 * * * [progress]: adding candidates to table
6.164 * * [progress]: iteration 2 / 4
6.164 * * * [progress]: picking best candidate
6.169 * * * * [pick]: Picked  #<alt (λ (a b) (* (+ a b) (- a b)))>
6.169 * * * [progress]: localizing error
6.181 * * * [progress]: generating rewritten candidates
6.182 * * * [progress]: generating series expansions
6.182 * * * [progress]: simplifying candidates
6.182 * [simplify]: Simplifying:
  
6.182 * * [simplify]: iteration 0: 0 enodes
6.182 * * [simplify]: iteration complete: 0 enodes
6.182 * * [simplify]: Extracting #0: cost 0 inf + 0
6.182 * [simplify]: Simplified to:
  
6.182 * * * [progress]: adding candidates to table
6.183 * [progress]: [Phase 3 of 3] Extracting.
6.187 * [simplify]: Simplifying:
  (* (+ a b) (- a b))
6.187 * * [simplify]: iteration 0: 5 enodes
6.187 * * [simplify]: iteration 1: 7 enodes
6.187 * * [simplify]: iteration complete: 7 enodes
6.187 * * [simplify]: Extracting #0: cost 1 inf + 0
6.187 * * [simplify]: Extracting #1: cost 3 inf + 0
6.187 * * [simplify]: Extracting #2: cost 5 inf + 0
6.187 * * [simplify]: Extracting #3: cost 3 inf + 2
6.187 * * [simplify]: Extracting #4: cost 0 inf + 208
6.187 * [simplify]: Simplified to:
  (* (+ b a) (- a b))
7.416 * [regime-testing]: Baseline error score: 0.0012501562695336917
7.425 * [regime-testing]: Oracle error score: 0.0012501562695336917
7.425 * [regime-testing]: End program error score: 0.0012501562695336917
7.499 * [regime-testing]: Target error score: 0.0012501562695336917