13.702 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.019 * * * [progress]: [2/2] Setting up program.
0.022 * [progress]: [Phase 2 of 3] Improving.
0.022 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.022 * * [simplify]: iteration 0: 5 enodes
0.023 * * [simplify]: iteration 1: 11 enodes
0.024 * * [simplify]: iteration 2: 18 enodes
0.027 * * [simplify]: iteration 3: 35 enodes
0.033 * * [simplify]: iteration 4: 67 enodes
0.050 * * [simplify]: iteration 5: 160 enodes
0.099 * * [simplify]: iteration 6: 366 enodes
0.260 * * [simplify]: iteration 7: 901 enodes
1.917 * * [simplify]: iteration 8: 3866 enodes
3.509 * * [simplify]: iteration complete: 5000 enodes
3.509 * * [simplify]: Extracting #0: cost 1 inf + 0
3.511 * * [simplify]: Extracting #1: cost 251 inf + 0
3.518 * * [simplify]: Extracting #2: cost 671 inf + 485
3.527 * * [simplify]: Extracting #3: cost 153 inf + 5304
3.535 * * [simplify]: Extracting #4: cost 0 inf + 6977
3.543 * [simplify]: Simplified to:
  (- (* a a) (* b b))
3.544 * * [progress]: iteration 1 / 4
3.544 * * * [progress]: picking best candidate
3.549 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
3.549 * * * [progress]: localizing error
3.559 * * * [progress]: generating rewritten candidates
3.559 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
3.566 * * * [progress]: generating series expansions
3.566 * * * * [progress]: [ 1 / 1 ] generating series at (2)
3.566 * [backup-simplify]: Simplify (- (* a a) (* b b)) into (- (pow a 2) (pow b 2))
3.566 * [approximate]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in (a b) around 0
3.566 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in b
3.566 * [taylor]: Taking taylor expansion of (pow a 2) in b
3.566 * [taylor]: Taking taylor expansion of a in b
3.566 * [backup-simplify]: Simplify a into a
3.566 * [taylor]: Taking taylor expansion of (pow b 2) in b
3.566 * [taylor]: Taking taylor expansion of b in b
3.566 * [backup-simplify]: Simplify 0 into 0
3.566 * [backup-simplify]: Simplify 1 into 1
3.566 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
3.566 * [taylor]: Taking taylor expansion of (pow a 2) in a
3.566 * [taylor]: Taking taylor expansion of a in a
3.566 * [backup-simplify]: Simplify 0 into 0
3.566 * [backup-simplify]: Simplify 1 into 1
3.566 * [taylor]: Taking taylor expansion of (pow b 2) in a
3.566 * [taylor]: Taking taylor expansion of b in a
3.567 * [backup-simplify]: Simplify b into b
3.567 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
3.567 * [taylor]: Taking taylor expansion of (pow a 2) in a
3.567 * [taylor]: Taking taylor expansion of a in a
3.567 * [backup-simplify]: Simplify 0 into 0
3.567 * [backup-simplify]: Simplify 1 into 1
3.567 * [taylor]: Taking taylor expansion of (pow b 2) in a
3.567 * [taylor]: Taking taylor expansion of b in a
3.567 * [backup-simplify]: Simplify b into b
3.567 * [backup-simplify]: Simplify (* b b) into (pow b 2)
3.567 * [backup-simplify]: Simplify (- (pow b 2)) into (- (pow b 2))
3.567 * [backup-simplify]: Simplify (+ 0 (- (pow b 2))) into (- (pow b 2))
3.567 * [taylor]: Taking taylor expansion of (- (pow b 2)) in b
3.567 * [taylor]: Taking taylor expansion of (pow b 2) in b
3.567 * [taylor]: Taking taylor expansion of b in b
3.567 * [backup-simplify]: Simplify 0 into 0
3.567 * [backup-simplify]: Simplify 1 into 1
3.567 * [backup-simplify]: Simplify (+ (* b 0) (* 0 b)) into 0
3.568 * [backup-simplify]: Simplify (- 0) into 0
3.568 * [backup-simplify]: Simplify (+ 0 0) into 0
3.568 * [taylor]: Taking taylor expansion of 0 in b
3.568 * [backup-simplify]: Simplify 0 into 0
3.568 * [backup-simplify]: Simplify 0 into 0
3.568 * [backup-simplify]: Simplify (* 1 1) into 1
3.569 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (* 0 b))) into 0
3.569 * [backup-simplify]: Simplify (- 0) into 0
3.569 * [backup-simplify]: Simplify (+ 1 0) into 1
3.569 * [taylor]: Taking taylor expansion of 1 in b
3.569 * [backup-simplify]: Simplify 1 into 1
3.569 * [backup-simplify]: Simplify 1 into 1
3.569 * [backup-simplify]: Simplify 0 into 0
3.569 * [backup-simplify]: Simplify (* 1 1) into 1
3.570 * [backup-simplify]: Simplify (- 1) into -1
3.570 * [backup-simplify]: Simplify -1 into -1
3.570 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.571 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (+ (* 0 0) (* 0 b)))) into 0
3.571 * [backup-simplify]: Simplify (- 0) into 0
3.571 * [backup-simplify]: Simplify (+ 0 0) into 0
3.571 * [taylor]: Taking taylor expansion of 0 in b
3.571 * [backup-simplify]: Simplify 0 into 0
3.571 * [backup-simplify]: Simplify 0 into 0
3.571 * [backup-simplify]: Simplify 0 into 0
3.571 * [backup-simplify]: Simplify 0 into 0
3.572 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.572 * [backup-simplify]: Simplify (- 0) into 0
3.572 * [backup-simplify]: Simplify 0 into 0
3.573 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.573 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 b))))) into 0
3.574 * [backup-simplify]: Simplify (- 0) into 0
3.574 * [backup-simplify]: Simplify (+ 0 0) into 0
3.574 * [taylor]: Taking taylor expansion of 0 in b
3.574 * [backup-simplify]: Simplify 0 into 0
3.574 * [backup-simplify]: Simplify 0 into 0
3.574 * [backup-simplify]: Simplify 0 into 0
3.574 * [backup-simplify]: Simplify (+ (* -1 (pow (* b 1) 2)) (* 1 (pow (* 1 a) 2))) into (- (pow a 2) (pow b 2))
3.574 * [backup-simplify]: Simplify (- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b))) into (- (/ 1 (pow a 2)) (/ 1 (pow b 2)))
3.574 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
3.574 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
3.574 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
3.574 * [taylor]: Taking taylor expansion of (pow a 2) in b
3.574 * [taylor]: Taking taylor expansion of a in b
3.574 * [backup-simplify]: Simplify a into a
3.574 * [backup-simplify]: Simplify (* a a) into (pow a 2)
3.575 * [backup-simplify]: Simplify (/ 1 (pow a 2)) into (/ 1 (pow a 2))
3.575 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
3.575 * [taylor]: Taking taylor expansion of (pow b 2) in b
3.575 * [taylor]: Taking taylor expansion of b in b
3.575 * [backup-simplify]: Simplify 0 into 0
3.575 * [backup-simplify]: Simplify 1 into 1
3.575 * [backup-simplify]: Simplify (* 1 1) into 1
3.575 * [backup-simplify]: Simplify (/ 1 1) into 1
3.575 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
3.575 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
3.575 * [taylor]: Taking taylor expansion of (pow a 2) in a
3.575 * [taylor]: Taking taylor expansion of a in a
3.575 * [backup-simplify]: Simplify 0 into 0
3.575 * [backup-simplify]: Simplify 1 into 1
3.575 * [backup-simplify]: Simplify (* 1 1) into 1
3.576 * [backup-simplify]: Simplify (/ 1 1) into 1
3.576 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
3.576 * [taylor]: Taking taylor expansion of (pow b 2) in a
3.576 * [taylor]: Taking taylor expansion of b in a
3.576 * [backup-simplify]: Simplify b into b
3.576 * [backup-simplify]: Simplify (* b b) into (pow b 2)
3.576 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
3.576 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
3.576 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
3.576 * [taylor]: Taking taylor expansion of (pow a 2) in a
3.576 * [taylor]: Taking taylor expansion of a in a
3.576 * [backup-simplify]: Simplify 0 into 0
3.576 * [backup-simplify]: Simplify 1 into 1
3.576 * [backup-simplify]: Simplify (* 1 1) into 1
3.576 * [backup-simplify]: Simplify (/ 1 1) into 1
3.576 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
3.576 * [taylor]: Taking taylor expansion of (pow b 2) in a
3.576 * [taylor]: Taking taylor expansion of b in a
3.577 * [backup-simplify]: Simplify b into b
3.577 * [backup-simplify]: Simplify (* b b) into (pow b 2)
3.577 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
3.577 * [backup-simplify]: Simplify (+ 1 0) into 1
3.577 * [taylor]: Taking taylor expansion of 1 in b
3.577 * [backup-simplify]: Simplify 1 into 1
3.577 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.578 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.578 * [backup-simplify]: Simplify (+ 0 0) into 0
3.578 * [taylor]: Taking taylor expansion of 0 in b
3.578 * [backup-simplify]: Simplify 0 into 0
3.579 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.579 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.579 * [backup-simplify]: Simplify (- (/ 1 (pow b 2))) into (- (/ 1 (pow b 2)))
3.580 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow b 2)))) into (- (/ 1 (pow b 2)))
3.580 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
3.580 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
3.580 * [taylor]: Taking taylor expansion of (pow b 2) in b
3.580 * [taylor]: Taking taylor expansion of b in b
3.580 * [backup-simplify]: Simplify 0 into 0
3.580 * [backup-simplify]: Simplify 1 into 1
3.580 * [backup-simplify]: Simplify (* 1 1) into 1
3.580 * [backup-simplify]: Simplify (/ 1 1) into 1
3.581 * [backup-simplify]: Simplify (- 1) into -1
3.581 * [backup-simplify]: Simplify -1 into -1
3.581 * [backup-simplify]: Simplify 1 into 1
3.582 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
3.583 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.583 * [backup-simplify]: Simplify (+ (* b 0) (* 0 b)) into 0
3.584 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))))) into 0
3.584 * [backup-simplify]: Simplify (- 0) into 0
3.584 * [backup-simplify]: Simplify (+ 0 0) into 0
3.584 * [taylor]: Taking taylor expansion of 0 in b
3.584 * [backup-simplify]: Simplify 0 into 0
3.585 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.586 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.586 * [backup-simplify]: Simplify (- 0) into 0
3.586 * [backup-simplify]: Simplify 0 into 0
3.586 * [backup-simplify]: Simplify 0 into 0
3.586 * [backup-simplify]: Simplify 0 into 0
3.588 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
3.589 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.589 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (* 0 b))) into 0
3.590 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))) (* 0 (/ 0 (pow b 2))))) into 0
3.590 * [backup-simplify]: Simplify (- 0) into 0
3.591 * [backup-simplify]: Simplify (+ 0 0) into 0
3.591 * [taylor]: Taking taylor expansion of 0 in b
3.591 * [backup-simplify]: Simplify 0 into 0
3.592 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.593 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.593 * [backup-simplify]: Simplify (- 0) into 0
3.593 * [backup-simplify]: Simplify 0 into 0
3.593 * [backup-simplify]: Simplify 0 into 0
3.593 * [backup-simplify]: Simplify 0 into 0
3.594 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 a))) 2)) (* -1 (pow (* (/ 1 (/ 1 b)) 1) 2))) into (- (pow a 2) (pow b 2))
3.594 * [backup-simplify]: Simplify (- (* (/ 1 (- a)) (/ 1 (- a))) (* (/ 1 (- b)) (/ 1 (- b)))) into (- (/ 1 (pow a 2)) (/ 1 (pow b 2)))
3.594 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
3.594 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
3.594 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
3.594 * [taylor]: Taking taylor expansion of (pow a 2) in b
3.594 * [taylor]: Taking taylor expansion of a in b
3.594 * [backup-simplify]: Simplify a into a
3.594 * [backup-simplify]: Simplify (* a a) into (pow a 2)
3.594 * [backup-simplify]: Simplify (/ 1 (pow a 2)) into (/ 1 (pow a 2))
3.594 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
3.594 * [taylor]: Taking taylor expansion of (pow b 2) in b
3.594 * [taylor]: Taking taylor expansion of b in b
3.595 * [backup-simplify]: Simplify 0 into 0
3.595 * [backup-simplify]: Simplify 1 into 1
3.595 * [backup-simplify]: Simplify (* 1 1) into 1
3.595 * [backup-simplify]: Simplify (/ 1 1) into 1
3.595 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
3.595 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
3.595 * [taylor]: Taking taylor expansion of (pow a 2) in a
3.596 * [taylor]: Taking taylor expansion of a in a
3.596 * [backup-simplify]: Simplify 0 into 0
3.596 * [backup-simplify]: Simplify 1 into 1
3.596 * [backup-simplify]: Simplify (* 1 1) into 1
3.596 * [backup-simplify]: Simplify (/ 1 1) into 1
3.596 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
3.596 * [taylor]: Taking taylor expansion of (pow b 2) in a
3.596 * [taylor]: Taking taylor expansion of b in a
3.597 * [backup-simplify]: Simplify b into b
3.597 * [backup-simplify]: Simplify (* b b) into (pow b 2)
3.597 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
3.597 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
3.597 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
3.597 * [taylor]: Taking taylor expansion of (pow a 2) in a
3.597 * [taylor]: Taking taylor expansion of a in a
3.597 * [backup-simplify]: Simplify 0 into 0
3.597 * [backup-simplify]: Simplify 1 into 1
3.597 * [backup-simplify]: Simplify (* 1 1) into 1
3.598 * [backup-simplify]: Simplify (/ 1 1) into 1
3.598 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
3.598 * [taylor]: Taking taylor expansion of (pow b 2) in a
3.598 * [taylor]: Taking taylor expansion of b in a
3.598 * [backup-simplify]: Simplify b into b
3.598 * [backup-simplify]: Simplify (* b b) into (pow b 2)
3.598 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
3.599 * [backup-simplify]: Simplify (+ 1 0) into 1
3.599 * [taylor]: Taking taylor expansion of 1 in b
3.599 * [backup-simplify]: Simplify 1 into 1
3.599 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.600 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.600 * [backup-simplify]: Simplify (+ 0 0) into 0
3.601 * [taylor]: Taking taylor expansion of 0 in b
3.601 * [backup-simplify]: Simplify 0 into 0
3.601 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.602 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.603 * [backup-simplify]: Simplify (- (/ 1 (pow b 2))) into (- (/ 1 (pow b 2)))
3.603 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow b 2)))) into (- (/ 1 (pow b 2)))
3.603 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
3.603 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
3.603 * [taylor]: Taking taylor expansion of (pow b 2) in b
3.603 * [taylor]: Taking taylor expansion of b in b
3.603 * [backup-simplify]: Simplify 0 into 0
3.603 * [backup-simplify]: Simplify 1 into 1
3.603 * [backup-simplify]: Simplify (* 1 1) into 1
3.604 * [backup-simplify]: Simplify (/ 1 1) into 1
3.604 * [backup-simplify]: Simplify (- 1) into -1
3.604 * [backup-simplify]: Simplify -1 into -1
3.604 * [backup-simplify]: Simplify 1 into 1
3.605 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
3.606 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.607 * [backup-simplify]: Simplify (+ (* b 0) (* 0 b)) into 0
3.607 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))))) into 0
3.607 * [backup-simplify]: Simplify (- 0) into 0
3.608 * [backup-simplify]: Simplify (+ 0 0) into 0
3.608 * [taylor]: Taking taylor expansion of 0 in b
3.608 * [backup-simplify]: Simplify 0 into 0
3.609 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.609 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.610 * [backup-simplify]: Simplify (- 0) into 0
3.610 * [backup-simplify]: Simplify 0 into 0
3.610 * [backup-simplify]: Simplify 0 into 0
3.610 * [backup-simplify]: Simplify 0 into 0
3.611 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
3.612 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.613 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (* 0 b))) into 0
3.613 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))) (* 0 (/ 0 (pow b 2))))) into 0
3.613 * [backup-simplify]: Simplify (- 0) into 0
3.614 * [backup-simplify]: Simplify (+ 0 0) into 0
3.614 * [taylor]: Taking taylor expansion of 0 in b
3.614 * [backup-simplify]: Simplify 0 into 0
3.615 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.616 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.616 * [backup-simplify]: Simplify (- 0) into 0
3.616 * [backup-simplify]: Simplify 0 into 0
3.616 * [backup-simplify]: Simplify 0 into 0
3.616 * [backup-simplify]: Simplify 0 into 0
3.617 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- a)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- b))) 1) 2))) into (- (pow a 2) (pow b 2))
3.617 * * * [progress]: simplifying candidates
3.618 * [simplify]: Simplifying:
  (fma a a (- (* b b)))
  (fma (- b) b (* b b))
  (expm1 (- (* a a) (* b b)))
  (log1p (- (* a a) (* b b)))
  (- (* b b))
  (/ (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))
3.618 * * [simplify]: iteration 0: 38 enodes
3.630 * * [simplify]: iteration 1: 118 enodes
3.693 * * [simplify]: iteration 2: 646 enodes
4.089 * * [simplify]: iteration complete: 5000 enodes
4.089 * * [simplify]: Extracting #0: cost 17 inf + 0
4.090 * * [simplify]: Extracting #1: cost 513 inf + 0
4.102 * * [simplify]: Extracting #2: cost 1932 inf + 317
4.108 * * [simplify]: Extracting #3: cost 812 inf + 7627
4.115 * * [simplify]: Extracting #4: cost 122 inf + 13392
4.122 * * [simplify]: Extracting #5: cost 25 inf + 14080
4.128 * * [simplify]: Extracting #6: cost 0 inf + 14295
4.135 * [simplify]: Simplified to:
  (* (+ a b) (- a b))
  (* b (+ (- b) b))
  (expm1 (* (+ a b) (- a b)))
  (log1p (* (+ a b) (- a b)))
  (- (* b b))
  (pow (exp (+ a b)) (- a b))
  (log (* (+ a b) (- a b)))
  (pow (exp (+ a b)) (- a b))
  (* (cbrt (* (+ a b) (- a b))) (cbrt (* (+ a b) (- a b))))
  (cbrt (* (+ a b) (- a b)))
  (pow (* (+ a b) (- a b)) 3)
  (sqrt (* (+ a b) (- a b)))
  (sqrt (* (+ a b) (- a b)))
  (- (pow a 6) (pow b 6))
  (fma b (fma (* a a) b (pow b 3)) (pow a 4))
  (- (* b b))
  (- (pow a 4) (pow b 4))
  (fma a a (* b b))
  (+ a b)
  (- a b)
  (- (* b b))
  (* (+ a b) (- a b))
  (* (+ a b) (- a b))
  (* (+ a b) (- a b))
4.135 * * * [progress]: adding candidates to table
4.237 * * [progress]: iteration 2 / 4
4.237 * * * [progress]: picking best candidate
4.240 * * * * [pick]: Picked  #<alt (λ (a b) (+ (* (+ a b) (- a b)) (* b (+ (- b) b))))>
4.240 * * * [progress]: localizing error
4.255 * * * [progress]: generating rewritten candidates
4.255 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
4.302 * * * [progress]: generating series expansions
4.302 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
4.302 * [backup-simplify]: Simplify (* (+ a b) (- a b)) into (* (+ a b) (- a b))
4.302 * [approximate]: Taking taylor expansion of (* (+ a b) (- a b)) in (a b) around 0
4.302 * [taylor]: Taking taylor expansion of (* (+ a b) (- a b)) in b
4.302 * [taylor]: Taking taylor expansion of (+ a b) in b
4.302 * [taylor]: Taking taylor expansion of a in b
4.302 * [backup-simplify]: Simplify a into a
4.302 * [taylor]: Taking taylor expansion of b in b
4.302 * [backup-simplify]: Simplify 0 into 0
4.302 * [backup-simplify]: Simplify 1 into 1
4.302 * [taylor]: Taking taylor expansion of (- a b) in b
4.302 * [taylor]: Taking taylor expansion of a in b
4.302 * [backup-simplify]: Simplify a into a
4.302 * [taylor]: Taking taylor expansion of b in b
4.302 * [backup-simplify]: Simplify 0 into 0
4.302 * [backup-simplify]: Simplify 1 into 1
4.302 * [taylor]: Taking taylor expansion of (* (+ a b) (- a b)) in a
4.302 * [taylor]: Taking taylor expansion of (+ a b) in a
4.302 * [taylor]: Taking taylor expansion of a in a
4.302 * [backup-simplify]: Simplify 0 into 0
4.302 * [backup-simplify]: Simplify 1 into 1
4.302 * [taylor]: Taking taylor expansion of b in a
4.302 * [backup-simplify]: Simplify b into b
4.302 * [taylor]: Taking taylor expansion of (- a b) in a
4.302 * [taylor]: Taking taylor expansion of a in a
4.302 * [backup-simplify]: Simplify 0 into 0
4.302 * [backup-simplify]: Simplify 1 into 1
4.302 * [taylor]: Taking taylor expansion of b in a
4.302 * [backup-simplify]: Simplify b into b
4.302 * [taylor]: Taking taylor expansion of (* (+ a b) (- a b)) in a
4.302 * [taylor]: Taking taylor expansion of (+ a b) in a
4.302 * [taylor]: Taking taylor expansion of a in a
4.302 * [backup-simplify]: Simplify 0 into 0
4.302 * [backup-simplify]: Simplify 1 into 1
4.302 * [taylor]: Taking taylor expansion of b in a
4.302 * [backup-simplify]: Simplify b into b
4.302 * [taylor]: Taking taylor expansion of (- a b) in a
4.302 * [taylor]: Taking taylor expansion of a in a
4.302 * [backup-simplify]: Simplify 0 into 0
4.302 * [backup-simplify]: Simplify 1 into 1
4.302 * [taylor]: Taking taylor expansion of b in a
4.302 * [backup-simplify]: Simplify b into b
4.302 * [backup-simplify]: Simplify (+ 0 b) into b
4.302 * [backup-simplify]: Simplify (- b) into (- b)
4.302 * [backup-simplify]: Simplify (+ 0 (- b)) into (- b)
4.303 * [backup-simplify]: Simplify (* b (- b)) into (* -1 (pow b 2))
4.303 * [taylor]: Taking taylor expansion of (* -1 (pow b 2)) in b
4.303 * [taylor]: Taking taylor expansion of -1 in b
4.303 * [backup-simplify]: Simplify -1 into -1
4.303 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.303 * [taylor]: Taking taylor expansion of b in b
4.303 * [backup-simplify]: Simplify 0 into 0
4.303 * [backup-simplify]: Simplify 1 into 1
4.303 * [backup-simplify]: Simplify (- 0) into 0
4.303 * [backup-simplify]: Simplify (+ 1 0) into 1
4.304 * [backup-simplify]: Simplify (+ 1 0) into 1
4.304 * [backup-simplify]: Simplify (+ (* b 1) (* 1 (- b))) into 0
4.304 * [taylor]: Taking taylor expansion of 0 in b
4.304 * [backup-simplify]: Simplify 0 into 0
4.304 * [backup-simplify]: Simplify 0 into 0
4.304 * [backup-simplify]: Simplify (- 0) into 0
4.304 * [backup-simplify]: Simplify (+ 0 0) into 0
4.305 * [backup-simplify]: Simplify (+ 0 0) into 0
4.305 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 1 1) (* 0 (- b)))) into 1
4.305 * [taylor]: Taking taylor expansion of 1 in b
4.305 * [backup-simplify]: Simplify 1 into 1
4.305 * [backup-simplify]: Simplify 1 into 1
4.305 * [backup-simplify]: Simplify 0 into 0
4.305 * [backup-simplify]: Simplify (* 1 1) into 1
4.305 * [backup-simplify]: Simplify (* -1 1) into -1
4.306 * [backup-simplify]: Simplify -1 into -1
4.306 * [backup-simplify]: Simplify (- 0) into 0
4.306 * [backup-simplify]: Simplify (+ 0 0) into 0
4.306 * [backup-simplify]: Simplify (+ 0 0) into 0
4.307 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 1 0) (+ (* 0 1) (* 0 (- b))))) into 0
4.307 * [taylor]: Taking taylor expansion of 0 in b
4.307 * [backup-simplify]: Simplify 0 into 0
4.307 * [backup-simplify]: Simplify 0 into 0
4.307 * [backup-simplify]: Simplify 0 into 0
4.307 * [backup-simplify]: Simplify 0 into 0
4.307 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.308 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 1)) into 0
4.308 * [backup-simplify]: Simplify 0 into 0
4.308 * [backup-simplify]: Simplify (- 0) into 0
4.308 * [backup-simplify]: Simplify (+ 0 0) into 0
4.308 * [backup-simplify]: Simplify (+ 0 0) into 0
4.309 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 1) (* 0 (- b)))))) into 0
4.309 * [taylor]: Taking taylor expansion of 0 in b
4.309 * [backup-simplify]: Simplify 0 into 0
4.309 * [backup-simplify]: Simplify 0 into 0
4.309 * [backup-simplify]: Simplify 0 into 0
4.310 * [backup-simplify]: Simplify (+ (* -1 (pow (* b 1) 2)) (* 1 (pow (* 1 a) 2))) into (- (pow a 2) (pow b 2))
4.310 * [backup-simplify]: Simplify (* (+ (/ 1 a) (/ 1 b)) (- (/ 1 a) (/ 1 b))) into (* (+ (/ 1 a) (/ 1 b)) (- (/ 1 a) (/ 1 b)))
4.310 * [approximate]: Taking taylor expansion of (* (+ (/ 1 a) (/ 1 b)) (- (/ 1 a) (/ 1 b))) in (a b) around 0
4.310 * [taylor]: Taking taylor expansion of (* (+ (/ 1 a) (/ 1 b)) (- (/ 1 a) (/ 1 b))) in b
4.310 * [taylor]: Taking taylor expansion of (+ (/ 1 a) (/ 1 b)) in b
4.310 * [taylor]: Taking taylor expansion of (/ 1 a) in b
4.310 * [taylor]: Taking taylor expansion of a in b
4.310 * [backup-simplify]: Simplify a into a
4.310 * [backup-simplify]: Simplify (/ 1 a) into (/ 1 a)
4.310 * [taylor]: Taking taylor expansion of (/ 1 b) in b
4.310 * [taylor]: Taking taylor expansion of b in b
4.310 * [backup-simplify]: Simplify 0 into 0
4.310 * [backup-simplify]: Simplify 1 into 1
4.310 * [backup-simplify]: Simplify (/ 1 1) into 1
4.310 * [taylor]: Taking taylor expansion of (- (/ 1 a) (/ 1 b)) in b
4.310 * [taylor]: Taking taylor expansion of (/ 1 a) in b
4.310 * [taylor]: Taking taylor expansion of a in b
4.310 * [backup-simplify]: Simplify a into a
4.310 * [backup-simplify]: Simplify (/ 1 a) into (/ 1 a)
4.310 * [taylor]: Taking taylor expansion of (/ 1 b) in b
4.310 * [taylor]: Taking taylor expansion of b in b
4.310 * [backup-simplify]: Simplify 0 into 0
4.310 * [backup-simplify]: Simplify 1 into 1
4.311 * [backup-simplify]: Simplify (/ 1 1) into 1
4.311 * [taylor]: Taking taylor expansion of (* (+ (/ 1 a) (/ 1 b)) (- (/ 1 a) (/ 1 b))) in a
4.311 * [taylor]: Taking taylor expansion of (+ (/ 1 a) (/ 1 b)) in a
4.311 * [taylor]: Taking taylor expansion of (/ 1 a) in a
4.311 * [taylor]: Taking taylor expansion of a in a
4.311 * [backup-simplify]: Simplify 0 into 0
4.311 * [backup-simplify]: Simplify 1 into 1
4.311 * [backup-simplify]: Simplify (/ 1 1) into 1
4.311 * [taylor]: Taking taylor expansion of (/ 1 b) in a
4.311 * [taylor]: Taking taylor expansion of b in a
4.311 * [backup-simplify]: Simplify b into b
4.311 * [backup-simplify]: Simplify (/ 1 b) into (/ 1 b)
4.311 * [taylor]: Taking taylor expansion of (- (/ 1 a) (/ 1 b)) in a
4.311 * [taylor]: Taking taylor expansion of (/ 1 a) in a
4.311 * [taylor]: Taking taylor expansion of a in a
4.311 * [backup-simplify]: Simplify 0 into 0
4.311 * [backup-simplify]: Simplify 1 into 1
4.311 * [backup-simplify]: Simplify (/ 1 1) into 1
4.311 * [taylor]: Taking taylor expansion of (/ 1 b) in a
4.311 * [taylor]: Taking taylor expansion of b in a
4.311 * [backup-simplify]: Simplify b into b
4.311 * [backup-simplify]: Simplify (/ 1 b) into (/ 1 b)
4.311 * [taylor]: Taking taylor expansion of (* (+ (/ 1 a) (/ 1 b)) (- (/ 1 a) (/ 1 b))) in a
4.311 * [taylor]: Taking taylor expansion of (+ (/ 1 a) (/ 1 b)) in a
4.311 * [taylor]: Taking taylor expansion of (/ 1 a) in a
4.311 * [taylor]: Taking taylor expansion of a in a
4.311 * [backup-simplify]: Simplify 0 into 0
4.311 * [backup-simplify]: Simplify 1 into 1
4.312 * [backup-simplify]: Simplify (/ 1 1) into 1
4.312 * [taylor]: Taking taylor expansion of (/ 1 b) in a
4.312 * [taylor]: Taking taylor expansion of b in a
4.312 * [backup-simplify]: Simplify b into b
4.312 * [backup-simplify]: Simplify (/ 1 b) into (/ 1 b)
4.312 * [taylor]: Taking taylor expansion of (- (/ 1 a) (/ 1 b)) in a
4.312 * [taylor]: Taking taylor expansion of (/ 1 a) in a
4.312 * [taylor]: Taking taylor expansion of a in a
4.312 * [backup-simplify]: Simplify 0 into 0
4.312 * [backup-simplify]: Simplify 1 into 1
4.312 * [backup-simplify]: Simplify (/ 1 1) into 1
4.312 * [taylor]: Taking taylor expansion of (/ 1 b) in a
4.312 * [taylor]: Taking taylor expansion of b in a
4.312 * [backup-simplify]: Simplify b into b
4.312 * [backup-simplify]: Simplify (/ 1 b) into (/ 1 b)
4.313 * [backup-simplify]: Simplify (+ 1 0) into 1
4.313 * [backup-simplify]: Simplify (+ 1 0) into 1
4.313 * [backup-simplify]: Simplify (* 1 1) into 1
4.313 * [taylor]: Taking taylor expansion of 1 in b
4.313 * [backup-simplify]: Simplify 1 into 1
4.313 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.314 * [backup-simplify]: Simplify (- (/ 1 b)) into (- (/ 1 b))
4.314 * [backup-simplify]: Simplify (+ 0 (- (/ 1 b))) into (- (/ 1 b))
4.314 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.314 * [backup-simplify]: Simplify (+ 0 (/ 1 b)) into (/ 1 b)
4.314 * [backup-simplify]: Simplify (+ (* 1 (- (/ 1 b))) (* (/ 1 b) 1)) into 0
4.314 * [taylor]: Taking taylor expansion of 0 in b
4.314 * [backup-simplify]: Simplify 0 into 0
4.315 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.315 * [backup-simplify]: Simplify (- (+ (* (/ 1 b) (/ 0 b)))) into 0
4.315 * [backup-simplify]: Simplify (- 0) into 0
4.315 * [backup-simplify]: Simplify (+ 0 0) into 0
4.316 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.316 * [backup-simplify]: Simplify (- (+ (* (/ 1 b) (/ 0 b)))) into 0
4.316 * [backup-simplify]: Simplify (+ 0 0) into 0
4.317 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 b) (- (/ 1 b))) (* 0 1))) into (- (/ 1 (pow b 2)))
4.317 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
4.317 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
4.317 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.317 * [taylor]: Taking taylor expansion of b in b
4.317 * [backup-simplify]: Simplify 0 into 0
4.317 * [backup-simplify]: Simplify 1 into 1
4.317 * [backup-simplify]: Simplify (* 1 1) into 1
4.317 * [backup-simplify]: Simplify (/ 1 1) into 1
4.318 * [backup-simplify]: Simplify (- 1) into -1
4.318 * [backup-simplify]: Simplify -1 into -1
4.318 * [backup-simplify]: Simplify 1 into 1
4.318 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.318 * [backup-simplify]: Simplify (- (+ (* (/ 1 b) (/ 0 b)) (* 0 (/ 0 b)))) into 0
4.319 * [backup-simplify]: Simplify (- 0) into 0
4.319 * [backup-simplify]: Simplify (+ 0 0) into 0
4.319 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.319 * [backup-simplify]: Simplify (- (+ (* (/ 1 b) (/ 0 b)) (* 0 (/ 0 b)))) into 0
4.320 * [backup-simplify]: Simplify (+ 0 0) into 0
4.320 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 b) 0) (+ (* 0 (- (/ 1 b))) (* 0 1)))) into 0
4.320 * [taylor]: Taking taylor expansion of 0 in b
4.320 * [backup-simplify]: Simplify 0 into 0
4.321 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.321 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.321 * [backup-simplify]: Simplify (- 0) into 0
4.321 * [backup-simplify]: Simplify 0 into 0
4.321 * [backup-simplify]: Simplify 0 into 0
4.321 * [backup-simplify]: Simplify 0 into 0
4.322 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.322 * [backup-simplify]: Simplify (- (+ (* (/ 1 b) (/ 0 b)) (* 0 (/ 0 b)) (* 0 (/ 0 b)))) into 0
4.322 * [backup-simplify]: Simplify (- 0) into 0
4.323 * [backup-simplify]: Simplify (+ 0 0) into 0
4.323 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.323 * [backup-simplify]: Simplify (- (+ (* (/ 1 b) (/ 0 b)) (* 0 (/ 0 b)) (* 0 (/ 0 b)))) into 0
4.323 * [backup-simplify]: Simplify (+ 0 0) into 0
4.324 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 b) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 b))) (* 0 1))))) into 0
4.324 * [taylor]: Taking taylor expansion of 0 in b
4.324 * [backup-simplify]: Simplify 0 into 0
4.325 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.325 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.326 * [backup-simplify]: Simplify (- 0) into 0
4.326 * [backup-simplify]: Simplify 0 into 0
4.326 * [backup-simplify]: Simplify 0 into 0
4.326 * [backup-simplify]: Simplify 0 into 0
4.326 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 a))) 2)) (* -1 (pow (* (/ 1 (/ 1 b)) 1) 2))) into (- (pow a 2) (pow b 2))
4.326 * [backup-simplify]: Simplify (* (+ (/ 1 (- a)) (/ 1 (- b))) (- (/ 1 (- a)) (/ 1 (- b)))) into (* -1 (* (- (/ 1 b) (/ 1 a)) (+ (/ 1 a) (/ 1 b))))
4.326 * [approximate]: Taking taylor expansion of (* -1 (* (- (/ 1 b) (/ 1 a)) (+ (/ 1 a) (/ 1 b)))) in (a b) around 0
4.326 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 b) (/ 1 a)) (+ (/ 1 a) (/ 1 b)))) in b
4.326 * [taylor]: Taking taylor expansion of -1 in b
4.326 * [backup-simplify]: Simplify -1 into -1
4.326 * [taylor]: Taking taylor expansion of (* (- (/ 1 b) (/ 1 a)) (+ (/ 1 a) (/ 1 b))) in b
4.326 * [taylor]: Taking taylor expansion of (- (/ 1 b) (/ 1 a)) in b
4.326 * [taylor]: Taking taylor expansion of (/ 1 b) in b
4.326 * [taylor]: Taking taylor expansion of b in b
4.326 * [backup-simplify]: Simplify 0 into 0
4.326 * [backup-simplify]: Simplify 1 into 1
4.327 * [backup-simplify]: Simplify (/ 1 1) into 1
4.327 * [taylor]: Taking taylor expansion of (/ 1 a) in b
4.327 * [taylor]: Taking taylor expansion of a in b
4.327 * [backup-simplify]: Simplify a into a
4.327 * [backup-simplify]: Simplify (/ 1 a) into (/ 1 a)
4.327 * [taylor]: Taking taylor expansion of (+ (/ 1 a) (/ 1 b)) in b
4.327 * [taylor]: Taking taylor expansion of (/ 1 a) in b
4.327 * [taylor]: Taking taylor expansion of a in b
4.327 * [backup-simplify]: Simplify a into a
4.327 * [backup-simplify]: Simplify (/ 1 a) into (/ 1 a)
4.327 * [taylor]: Taking taylor expansion of (/ 1 b) in b
4.327 * [taylor]: Taking taylor expansion of b in b
4.327 * [backup-simplify]: Simplify 0 into 0
4.327 * [backup-simplify]: Simplify 1 into 1
4.327 * [backup-simplify]: Simplify (/ 1 1) into 1
4.327 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 b) (/ 1 a)) (+ (/ 1 a) (/ 1 b)))) in a
4.327 * [taylor]: Taking taylor expansion of -1 in a
4.327 * [backup-simplify]: Simplify -1 into -1
4.327 * [taylor]: Taking taylor expansion of (* (- (/ 1 b) (/ 1 a)) (+ (/ 1 a) (/ 1 b))) in a
4.327 * [taylor]: Taking taylor expansion of (- (/ 1 b) (/ 1 a)) in a
4.327 * [taylor]: Taking taylor expansion of (/ 1 b) in a
4.327 * [taylor]: Taking taylor expansion of b in a
4.327 * [backup-simplify]: Simplify b into b
4.327 * [backup-simplify]: Simplify (/ 1 b) into (/ 1 b)
4.327 * [taylor]: Taking taylor expansion of (/ 1 a) in a
4.327 * [taylor]: Taking taylor expansion of a in a
4.327 * [backup-simplify]: Simplify 0 into 0
4.327 * [backup-simplify]: Simplify 1 into 1
4.327 * [backup-simplify]: Simplify (/ 1 1) into 1
4.328 * [taylor]: Taking taylor expansion of (+ (/ 1 a) (/ 1 b)) in a
4.328 * [taylor]: Taking taylor expansion of (/ 1 a) in a
4.328 * [taylor]: Taking taylor expansion of a in a
4.328 * [backup-simplify]: Simplify 0 into 0
4.328 * [backup-simplify]: Simplify 1 into 1
4.328 * [backup-simplify]: Simplify (/ 1 1) into 1
4.328 * [taylor]: Taking taylor expansion of (/ 1 b) in a
4.328 * [taylor]: Taking taylor expansion of b in a
4.328 * [backup-simplify]: Simplify b into b
4.328 * [backup-simplify]: Simplify (/ 1 b) into (/ 1 b)
4.328 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 b) (/ 1 a)) (+ (/ 1 a) (/ 1 b)))) in a
4.328 * [taylor]: Taking taylor expansion of -1 in a
4.328 * [backup-simplify]: Simplify -1 into -1
4.328 * [taylor]: Taking taylor expansion of (* (- (/ 1 b) (/ 1 a)) (+ (/ 1 a) (/ 1 b))) in a
4.328 * [taylor]: Taking taylor expansion of (- (/ 1 b) (/ 1 a)) in a
4.328 * [taylor]: Taking taylor expansion of (/ 1 b) in a
4.328 * [taylor]: Taking taylor expansion of b in a
4.328 * [backup-simplify]: Simplify b into b
4.328 * [backup-simplify]: Simplify (/ 1 b) into (/ 1 b)
4.328 * [taylor]: Taking taylor expansion of (/ 1 a) in a
4.328 * [taylor]: Taking taylor expansion of a in a
4.328 * [backup-simplify]: Simplify 0 into 0
4.328 * [backup-simplify]: Simplify 1 into 1
4.328 * [backup-simplify]: Simplify (/ 1 1) into 1
4.328 * [taylor]: Taking taylor expansion of (+ (/ 1 a) (/ 1 b)) in a
4.328 * [taylor]: Taking taylor expansion of (/ 1 a) in a
4.328 * [taylor]: Taking taylor expansion of a in a
4.328 * [backup-simplify]: Simplify 0 into 0
4.328 * [backup-simplify]: Simplify 1 into 1
4.329 * [backup-simplify]: Simplify (/ 1 1) into 1
4.329 * [taylor]: Taking taylor expansion of (/ 1 b) in a
4.329 * [taylor]: Taking taylor expansion of b in a
4.329 * [backup-simplify]: Simplify b into b
4.329 * [backup-simplify]: Simplify (/ 1 b) into (/ 1 b)
4.329 * [backup-simplify]: Simplify (- 1) into -1
4.329 * [backup-simplify]: Simplify (+ 0 -1) into -1
4.330 * [backup-simplify]: Simplify (+ 1 0) into 1
4.330 * [backup-simplify]: Simplify (* -1 1) into -1
4.330 * [backup-simplify]: Simplify (* -1 -1) into 1
4.330 * [taylor]: Taking taylor expansion of 1 in b
4.330 * [backup-simplify]: Simplify 1 into 1
4.331 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.331 * [backup-simplify]: Simplify (+ 0 (/ 1 b)) into (/ 1 b)
4.331 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.331 * [backup-simplify]: Simplify (- 0) into 0
4.331 * [backup-simplify]: Simplify (+ (/ 1 b) 0) into (/ 1 b)
4.332 * [backup-simplify]: Simplify (+ (* -1 (/ 1 b)) (* (/ 1 b) 1)) into 0
4.332 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 -1)) into 0
4.332 * [taylor]: Taking taylor expansion of 0 in b
4.332 * [backup-simplify]: Simplify 0 into 0
4.333 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.333 * [backup-simplify]: Simplify (- (+ (* (/ 1 b) (/ 0 b)))) into 0
4.334 * [backup-simplify]: Simplify (+ 0 0) into 0
4.334 * [backup-simplify]: Simplify (- (+ (* (/ 1 b) (/ 0 b)))) into 0
4.335 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.335 * [backup-simplify]: Simplify (- 0) into 0
4.335 * [backup-simplify]: Simplify (+ 0 0) into 0
4.336 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* (/ 1 b) (/ 1 b)) (* 0 1))) into (/ 1 (pow b 2))
4.337 * [backup-simplify]: Simplify (+ (* -1 (/ 1 (pow b 2))) (+ (* 0 0) (* 0 -1))) into (- (/ 1 (pow b 2)))
4.337 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
4.337 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
4.337 * [taylor]: Taking taylor expansion of (pow b 2) in b
4.337 * [taylor]: Taking taylor expansion of b in b
4.337 * [backup-simplify]: Simplify 0 into 0
4.337 * [backup-simplify]: Simplify 1 into 1
4.338 * [backup-simplify]: Simplify (* 1 1) into 1
4.338 * [backup-simplify]: Simplify (/ 1 1) into 1
4.338 * [backup-simplify]: Simplify (- 1) into -1
4.338 * [backup-simplify]: Simplify -1 into -1
4.339 * [backup-simplify]: Simplify 1 into 1
4.339 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.340 * [backup-simplify]: Simplify (- (+ (* (/ 1 b) (/ 0 b)) (* 0 (/ 0 b)))) into 0
4.340 * [backup-simplify]: Simplify (+ 0 0) into 0
4.340 * [backup-simplify]: Simplify (- (+ (* (/ 1 b) (/ 0 b)) (* 0 (/ 0 b)))) into 0
4.341 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.341 * [backup-simplify]: Simplify (- 0) into 0
4.342 * [backup-simplify]: Simplify (+ 0 0) into 0
4.343 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* (/ 1 b) 0) (+ (* 0 (/ 1 b)) (* 0 1)))) into 0
4.344 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 (/ 1 (pow b 2))) (+ (* 0 0) (* 0 -1)))) into 0
4.344 * [taylor]: Taking taylor expansion of 0 in b
4.344 * [backup-simplify]: Simplify 0 into 0
4.345 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.345 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.346 * [backup-simplify]: Simplify (- 0) into 0
4.346 * [backup-simplify]: Simplify 0 into 0
4.346 * [backup-simplify]: Simplify 0 into 0
4.346 * [backup-simplify]: Simplify 0 into 0
4.347 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.347 * [backup-simplify]: Simplify (- (+ (* (/ 1 b) (/ 0 b)) (* 0 (/ 0 b)) (* 0 (/ 0 b)))) into 0
4.348 * [backup-simplify]: Simplify (+ 0 0) into 0
4.348 * [backup-simplify]: Simplify (- (+ (* (/ 1 b) (/ 0 b)) (* 0 (/ 0 b)) (* 0 (/ 0 b)))) into 0
4.349 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.349 * [backup-simplify]: Simplify (- 0) into 0
4.349 * [backup-simplify]: Simplify (+ 0 0) into 0
4.351 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* (/ 1 b) 0) (+ (* 0 0) (+ (* 0 (/ 1 b)) (* 0 1))))) into 0
4.355 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (/ 1 (pow b 2))) (+ (* 0 0) (* 0 -1))))) into 0
4.355 * [taylor]: Taking taylor expansion of 0 in b
4.355 * [backup-simplify]: Simplify 0 into 0
4.356 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.357 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.357 * [backup-simplify]: Simplify (- 0) into 0
4.357 * [backup-simplify]: Simplify 0 into 0
4.358 * [backup-simplify]: Simplify 0 into 0
4.358 * [backup-simplify]: Simplify 0 into 0
4.358 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- a)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- b))) 1) 2))) into (- (pow a 2) (pow b 2))
4.358 * * * [progress]: simplifying candidates
4.360 * [simplify]: Simplifying:
  (expm1 (* (+ a b) (- a b)))
  (log1p (* (+ a b) (- a b)))
  (* (+ a b) (- a b))
  (+ (log (+ a b)) (log (- a b)))
  (log (* (+ a b) (- a b)))
  (exp (* (+ a b) (- a b)))
  (* (* (* (+ a b) (+ a b)) (+ a b)) (* (* (- a b) (- 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)))
  (* (+ (pow a 3) (pow b 3)) (- (pow a 3) (pow b 3)))
  (* (+ (* a a) (- (* b b) (* a b))) (+ (* a a) (+ (* b b) (* a b))))
  (* (+ (pow a 3) (pow b 3)) (- (* a a) (* b b)))
  (* (+ (* a a) (- (* b b) (* a b))) (+ a b))
  (* (- (* a a) (* b b)) (- (pow a 3) (pow b 3)))
  (* (- a b) (+ (* a a) (+ (* b b) (* a b))))
  (* (- (* a a) (* b b)) (- (* a a) (* b b)))
  (* (- a b) (+ a b))
  (* (sqrt (+ a b)) (sqrt (- a b)))
  (* (sqrt (+ a b)) (sqrt (- a b)))
  (* (+ a b) (fma (* (cbrt a) (cbrt a)) (cbrt a) (- (* (cbrt b) (* (cbrt b) (cbrt b))))))
  (* (+ a b) (fma (- (cbrt b)) (* (cbrt b) (cbrt b)) (* (cbrt b) (* (cbrt b) (cbrt b)))))
  (* (+ a b) (fma (* (cbrt a) (cbrt a)) (cbrt a) (- (* (sqrt b) (sqrt b)))))
  (* (+ a b) (fma (- (sqrt b)) (sqrt b) (* (sqrt b) (sqrt b))))
  (* (+ a b) (fma (* (cbrt a) (cbrt a)) (cbrt a) (- (* b 1))))
  (* (+ a b) (fma (- b) 1 (* b 1)))
  (* (+ a b) (fma (sqrt a) (sqrt a) (- (* (cbrt b) (* (cbrt b) (cbrt b))))))
  (* (+ a b) (fma (- (cbrt b)) (* (cbrt b) (cbrt b)) (* (cbrt b) (* (cbrt b) (cbrt b)))))
  (* (+ a b) (fma (sqrt a) (sqrt a) (- (* (sqrt b) (sqrt b)))))
  (* (+ a b) (fma (- (sqrt b)) (sqrt b) (* (sqrt b) (sqrt b))))
  (* (+ a b) (fma (sqrt a) (sqrt a) (- (* b 1))))
  (* (+ a b) (fma (- b) 1 (* b 1)))
  (* (+ a b) (fma 1 a (- (* (cbrt b) (* (cbrt b) (cbrt b))))))
  (* (+ a b) (fma (- (cbrt b)) (* (cbrt b) (cbrt b)) (* (cbrt b) (* (cbrt b) (cbrt b)))))
  (* (+ a b) (fma 1 a (- (* (sqrt b) (sqrt b)))))
  (* (+ a b) (fma (- (sqrt b)) (sqrt b) (* (sqrt b) (sqrt b))))
  (* (+ a b) (fma 1 a (- (* b 1))))
  (* (+ a b) (fma (- b) 1 (* b 1)))
  (* (+ a b) a)
  (* (+ a b) (- b))
  (* (+ a b) a)
  (* (+ a b) (- b))
  (* (fma (* (cbrt a) (cbrt a)) (cbrt a) (- (* (cbrt b) (* (cbrt b) (cbrt b))))) (+ a b))
  (* (fma (- (cbrt b)) (* (cbrt b) (cbrt b)) (* (cbrt b) (* (cbrt b) (cbrt b)))) (+ a b))
  (* (fma (* (cbrt a) (cbrt a)) (cbrt a) (- (* (sqrt b) (sqrt b)))) (+ a b))
  (* (fma (- (sqrt b)) (sqrt b) (* (sqrt b) (sqrt b))) (+ a b))
  (* (fma (* (cbrt a) (cbrt a)) (cbrt a) (- (* b 1))) (+ a b))
  (* (fma (- b) 1 (* b 1)) (+ a b))
  (* (fma (sqrt a) (sqrt a) (- (* (cbrt b) (* (cbrt b) (cbrt b))))) (+ a b))
  (* (fma (- (cbrt b)) (* (cbrt b) (cbrt b)) (* (cbrt b) (* (cbrt b) (cbrt b)))) (+ a b))
  (* (fma (sqrt a) (sqrt a) (- (* (sqrt b) (sqrt b)))) (+ a b))
  (* (fma (- (sqrt b)) (sqrt b) (* (sqrt b) (sqrt b))) (+ a b))
  (* (fma (sqrt a) (sqrt a) (- (* b 1))) (+ a b))
  (* (fma (- b) 1 (* b 1)) (+ a b))
  (* (fma 1 a (- (* (cbrt b) (* (cbrt b) (cbrt b))))) (+ a b))
  (* (fma (- (cbrt b)) (* (cbrt b) (cbrt b)) (* (cbrt b) (* (cbrt b) (cbrt b)))) (+ a b))
  (* (fma 1 a (- (* (sqrt b) (sqrt b)))) (+ a b))
  (* (fma (- (sqrt b)) (sqrt b) (* (sqrt b) (sqrt b))) (+ a b))
  (* (fma 1 a (- (* b 1))) (+ a b))
  (* (fma (- b) 1 (* b 1)) (+ a b))
  (* a (+ a b))
  (* (- b) (+ a b))
  (* a (+ a b))
  (* (- b) (+ a b))
  (* (+ a b) (* (cbrt (- a b)) (cbrt (- a b))))
  (* (+ a b) (sqrt (- a b)))
  (* (+ a b) 1)
  (* (+ a b) (+ (sqrt a) (sqrt b)))
  (* (+ a b) 1)
  (* (cbrt (+ a b)) (- a b))
  (* (sqrt (+ a b)) (- a b))
  (* (+ a b) (- a b))
  (* (+ a b) (- a b))
  (* (+ a b) (- (pow a 3) (pow b 3)))
  (* (+ a b) (- (* a a) (* b b)))
  (* (+ (pow a 3) (pow b 3)) (- a b))
  (* (- (* a a) (* b b)) (- a b))
  (- (pow a 2) (pow b 2))
  (- (pow a 2) (pow b 2))
  (- (pow a 2) (pow b 2))
4.362 * * [simplify]: iteration 0: 120 enodes
4.404 * * [simplify]: iteration 1: 401 enodes
4.730 * * [simplify]: iteration 2: 2818 enodes
6.528 * * [simplify]: iteration complete: 5000 enodes
6.528 * * [simplify]: Extracting #0: cost 32 inf + 0
6.531 * * [simplify]: Extracting #1: cost 990 inf + 0
6.541 * * [simplify]: Extracting #2: cost 1496 inf + 185
6.548 * * [simplify]: Extracting #3: cost 656 inf + 4963
6.559 * * [simplify]: Extracting #4: cost 132 inf + 9258
6.569 * * [simplify]: Extracting #5: cost 53 inf + 9912
6.575 * * [simplify]: Extracting #6: cost 13 inf + 9989
6.581 * * [simplify]: Extracting #7: cost 0 inf + 10056
6.586 * [simplify]: Simplified to:
  (expm1 (* (- a b) (+ b a)))
  (log1p (* (- a b) (+ b a)))
  (* (- a b) (+ b a))
  (log (* (- a b) (+ b a)))
  (log (* (- a b) (+ b a)))
  (pow (exp (- a b)) (+ a b))
  (pow (* (- a b) (+ b a)) 3)
  (* (cbrt (* (- a b) (+ b a))) (cbrt (* (- a b) (+ b a))))
  (cbrt (* (- a b) (+ b a)))
  (pow (* (- a b) (+ b a)) 3)
  (sqrt (* (- a b) (+ b a)))
  (sqrt (* (- a b) (+ b a)))
  (* (+ (pow b 3) (pow a 3)) (- (pow a 3) (pow b 3)))
  (* (fma a a (* b (+ b a))) (fma a a (* b (- b a))))
  (* (fma a a (* b (- b))) (+ (pow b 3) (pow a 3)))
  (* (fma a a (* b (- b a))) (+ a b))
  (* (- (pow a 3) (pow b 3)) (fma a a (* b (- b))))
  (* (fma a a (* b (+ b a))) (- a b))
  (* (fma a a (* b (- b))) (fma a a (* b (- b))))
  (* (- a b) (+ b a))
  (* (sqrt (+ b a)) (sqrt (- a b)))
  (* (sqrt (+ b a)) (sqrt (- a b)))
  (* (- (pow (cbrt a) 3) b) (+ a b))
  (* (fma -1 b b) (+ a b))
  (* (- (pow (cbrt a) 3) b) (+ a b))
  (* (fma -1 b b) (+ a b))
  (* (- (pow (cbrt a) 3) b) (+ a b))
  (* (fma -1 b b) (+ a b))
  (* (- a b) (+ b a))
  (* (fma -1 b b) (+ a b))
  (* (- a b) (+ b a))
  (* (fma -1 b b) (+ a b))
  (* (- a b) (+ b a))
  (* (fma -1 b b) (+ a b))
  (* (- a b) (+ b a))
  (* (fma -1 b b) (+ a b))
  (* (- a b) (+ b a))
  (* (fma -1 b b) (+ a b))
  (* (- a b) (+ b a))
  (* (fma -1 b b) (+ a b))
  (* a (+ b a))
  (- (* (+ b a) b))
  (* a (+ b a))
  (- (* (+ b a) b))
  (* (- (pow (cbrt a) 3) b) (+ a b))
  (* (fma -1 b b) (+ a b))
  (* (- (pow (cbrt a) 3) b) (+ a b))
  (* (fma -1 b b) (+ a b))
  (* (- (pow (cbrt a) 3) b) (+ a b))
  (* (fma -1 b b) (+ a b))
  (* (- a b) (+ b a))
  (* (fma -1 b b) (+ a b))
  (* (- a b) (+ b a))
  (* (fma -1 b b) (+ a b))
  (* (- a b) (+ b a))
  (* (fma -1 b b) (+ a b))
  (* (- a b) (+ b a))
  (* (fma -1 b b) (+ a b))
  (* (- a b) (+ b a))
  (* (fma -1 b b) (+ a b))
  (* (- a b) (+ b a))
  (* (fma -1 b b) (+ a b))
  (* a (+ b a))
  (- (* (+ b a) b))
  (* a (+ b a))
  (- (* (+ b a) b))
  (* (* (cbrt (- a b)) (cbrt (- a b))) (+ b a))
  (* (sqrt (- a b)) (+ b a))
  (+ b a)
  (* (+ (sqrt b) (sqrt a)) (+ b a))
  (+ b a)
  (* (cbrt (+ b a)) (- a b))
  (* (sqrt (+ b a)) (- a b))
  (* (- a b) (+ b a))
  (* (- a b) (+ b a))
  (* (- (pow a 3) (pow b 3)) (+ b a))
  (* (+ b a) (fma a a (* b (- b))))
  (* (- a b) (+ (pow b 3) (pow a 3)))
  (* (- a b) (fma a a (* b (- b))))
  (fma a a (* b (- b)))
  (fma a a (* b (- b)))
  (fma a a (* b (- b)))
6.587 * * * [progress]: adding candidates to table
6.765 * [progress]: [Phase 3 of 3] Extracting.
6.765 * * [regime]: Finding splitpoints for: (#<alt (λ (a b) (- (* a a) (* b b)))> #<alt (λ (a b) (+ (* (+ a b) (- a b)) (* b (+ (- b) b))))>)
6.765 * * * [regime-changes]: Trying 5 branch expressions: ((* b b) (* a a) (- (* a a) (* b b)) b a)
6.765 * * * * [regimes]: Trying to branch on (* b b) from (#<alt (λ (a b) (- (* a a) (* b b)))> #<alt (λ (a b) (+ (* (+ a b) (- a b)) (* b (+ (- b) b))))>)
6.811 * * * * [regimes]: Trying to branch on (* a a) from (#<alt (λ (a b) (- (* a a) (* b b)))> #<alt (λ (a b) (+ (* (+ a b) (- a b)) (* b (+ (- b) b))))>)
6.839 * * * * [regimes]: Trying to branch on (- (* a a) (* b b)) from (#<alt (λ (a b) (- (* a a) (* b b)))> #<alt (λ (a b) (+ (* (+ a b) (- a b)) (* b (+ (- b) b))))>)
6.882 * * * * [regimes]: Trying to branch on b from (#<alt (λ (a b) (- (* a a) (* b b)))> #<alt (λ (a b) (+ (* (+ a b) (- a b)) (* b (+ (- b) b))))>)
6.909 * * * * [regimes]: Trying to branch on a from (#<alt (λ (a b) (- (* a a) (* b b)))> #<alt (λ (a b) (+ (* (+ a b) (- a b)) (* b (+ (- b) b))))>)
6.952 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
6.952 * [simplify]: Simplifying:
  (- (* a a) (* b b))
6.952 * * [simplify]: iteration 0: 5 enodes
6.952 * * [simplify]: iteration complete: 5 enodes
6.952 * * [simplify]: Extracting #0: cost 1 inf + 0
6.952 * * [simplify]: Extracting #1: cost 3 inf + 0
6.952 * * [simplify]: Extracting #2: cost 5 inf + 0
6.952 * * [simplify]: Extracting #3: cost 2 inf + 5
6.952 * * [simplify]: Extracting #4: cost 0 inf + 15
6.952 * [simplify]: Simplified to:
  (- (* a a) (* b b))
8.373 * [regime-testing]: Baseline error score: 0.00554973339452166
8.381 * [regime-testing]: Oracle error score: 0.0005000625078134767
8.410 * [regime-testing]: End program error score: 0.00554973339452166
8.532 * [regime-testing]: Target error score: 0.0012501562695336917