40.806 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.038 * * * [progress]: [2/2] Setting up program.
0.044 * [progress]: [Phase 2 of 3] Improving.
0.044 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.045 * * [simplify]: iteration 0: 5 enodes
0.047 * * [simplify]: iteration 1: 10 enodes
0.053 * * [simplify]: iteration 2: 17 enodes
0.059 * * [simplify]: iteration 3: 32 enodes
0.075 * * [simplify]: iteration 4: 57 enodes
0.109 * * [simplify]: iteration 5: 128 enodes
0.183 * * [simplify]: iteration 6: 201 enodes
0.312 * * [simplify]: iteration 7: 367 enodes
0.846 * * [simplify]: iteration 8: 1108 enodes
4.818 * * [simplify]: iteration 9: 4271 enodes
9.078 * * [simplify]: iteration complete: 5001 enodes
9.078 * * [simplify]: Extracting #0: cost 1 inf + 0
9.078 * * [simplify]: Extracting #1: cost 188 inf + 0
9.084 * * [simplify]: Extracting #2: cost 936 inf + 84
9.097 * * [simplify]: Extracting #3: cost 668 inf + 32425
9.156 * * [simplify]: Extracting #4: cost 132 inf + 127239
9.241 * * [simplify]: Extracting #5: cost 1 inf + 160508
9.321 * * [simplify]: Extracting #6: cost 0 inf + 160712
9.402 * [simplify]: Simplified to:
  (* (+ a b) (- a b))
9.403 * * [progress]: iteration 1 / 4
9.403 * * * [progress]: picking best candidate
9.409 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
9.409 * * * [progress]: localizing error
9.425 * * * [progress]: generating rewritten candidates
9.425 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
9.442 * * * [progress]: generating series expansions
9.442 * * * * [progress]: [ 1 / 1 ] generating series at (2)
9.443 * [backup-simplify]: Simplify (- (* a a) (* b b)) into (- (pow a 2) (pow b 2))
9.443 * [approximate]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in (a b) around 0
9.443 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in b
9.443 * [taylor]: Taking taylor expansion of (pow a 2) in b
9.443 * [taylor]: Taking taylor expansion of a in b
9.443 * [backup-simplify]: Simplify a into a
9.443 * [taylor]: Taking taylor expansion of (pow b 2) in b
9.443 * [taylor]: Taking taylor expansion of b in b
9.443 * [backup-simplify]: Simplify 0 into 0
9.443 * [backup-simplify]: Simplify 1 into 1
9.443 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
9.443 * [taylor]: Taking taylor expansion of (pow a 2) in a
9.443 * [taylor]: Taking taylor expansion of a in a
9.443 * [backup-simplify]: Simplify 0 into 0
9.443 * [backup-simplify]: Simplify 1 into 1
9.443 * [taylor]: Taking taylor expansion of (pow b 2) in a
9.443 * [taylor]: Taking taylor expansion of b in a
9.443 * [backup-simplify]: Simplify b into b
9.443 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
9.443 * [taylor]: Taking taylor expansion of (pow a 2) in a
9.443 * [taylor]: Taking taylor expansion of a in a
9.443 * [backup-simplify]: Simplify 0 into 0
9.443 * [backup-simplify]: Simplify 1 into 1
9.443 * [taylor]: Taking taylor expansion of (pow b 2) in a
9.443 * [taylor]: Taking taylor expansion of b in a
9.443 * [backup-simplify]: Simplify b into b
9.443 * [backup-simplify]: Simplify (* b b) into (pow b 2)
9.444 * [backup-simplify]: Simplify (- (pow b 2)) into (- (pow b 2))
9.444 * [backup-simplify]: Simplify (+ 0 (- (pow b 2))) into (- (pow b 2))
9.444 * [taylor]: Taking taylor expansion of (- (pow b 2)) in b
9.444 * [taylor]: Taking taylor expansion of (pow b 2) in b
9.444 * [taylor]: Taking taylor expansion of b in b
9.444 * [backup-simplify]: Simplify 0 into 0
9.444 * [backup-simplify]: Simplify 1 into 1
9.444 * [backup-simplify]: Simplify (+ (* b 0) (* 0 b)) into 0
9.445 * [backup-simplify]: Simplify (- 0) into 0
9.449 * [backup-simplify]: Simplify (+ 0 0) into 0
9.449 * [taylor]: Taking taylor expansion of 0 in b
9.449 * [backup-simplify]: Simplify 0 into 0
9.449 * [backup-simplify]: Simplify 0 into 0
9.450 * [backup-simplify]: Simplify (* 1 1) into 1
9.450 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (* 0 b))) into 0
9.451 * [backup-simplify]: Simplify (- 0) into 0
9.451 * [backup-simplify]: Simplify (+ 1 0) into 1
9.451 * [taylor]: Taking taylor expansion of 1 in b
9.451 * [backup-simplify]: Simplify 1 into 1
9.451 * [backup-simplify]: Simplify 1 into 1
9.451 * [backup-simplify]: Simplify 0 into 0
9.451 * [backup-simplify]: Simplify (* 1 1) into 1
9.452 * [backup-simplify]: Simplify (- 1) into -1
9.452 * [backup-simplify]: Simplify -1 into -1
9.452 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
9.453 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (+ (* 0 0) (* 0 b)))) into 0
9.453 * [backup-simplify]: Simplify (- 0) into 0
9.453 * [backup-simplify]: Simplify (+ 0 0) into 0
9.453 * [taylor]: Taking taylor expansion of 0 in b
9.453 * [backup-simplify]: Simplify 0 into 0
9.453 * [backup-simplify]: Simplify 0 into 0
9.453 * [backup-simplify]: Simplify 0 into 0
9.453 * [backup-simplify]: Simplify 0 into 0
9.454 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
9.454 * [backup-simplify]: Simplify (- 0) into 0
9.454 * [backup-simplify]: Simplify 0 into 0
9.455 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
9.455 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 b))))) into 0
9.456 * [backup-simplify]: Simplify (- 0) into 0
9.456 * [backup-simplify]: Simplify (+ 0 0) into 0
9.456 * [taylor]: Taking taylor expansion of 0 in b
9.456 * [backup-simplify]: Simplify 0 into 0
9.456 * [backup-simplify]: Simplify 0 into 0
9.456 * [backup-simplify]: Simplify 0 into 0
9.456 * [backup-simplify]: Simplify (+ (* -1 (pow (* b 1) 2)) (* 1 (pow (* 1 a) 2))) into (- (pow a 2) (pow b 2))
9.457 * [backup-simplify]: Simplify (- (* (/ 1 a) (/ 1 a)) (* (/ 1 b) (/ 1 b))) into (- (/ 1 (pow a 2)) (/ 1 (pow b 2)))
9.457 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
9.457 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
9.457 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
9.457 * [taylor]: Taking taylor expansion of (pow a 2) in b
9.457 * [taylor]: Taking taylor expansion of a in b
9.457 * [backup-simplify]: Simplify a into a
9.457 * [backup-simplify]: Simplify (* a a) into (pow a 2)
9.457 * [backup-simplify]: Simplify (/ 1 (pow a 2)) into (/ 1 (pow a 2))
9.457 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
9.457 * [taylor]: Taking taylor expansion of (pow b 2) in b
9.457 * [taylor]: Taking taylor expansion of b in b
9.457 * [backup-simplify]: Simplify 0 into 0
9.457 * [backup-simplify]: Simplify 1 into 1
9.458 * [backup-simplify]: Simplify (* 1 1) into 1
9.458 * [backup-simplify]: Simplify (/ 1 1) into 1
9.458 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
9.458 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
9.458 * [taylor]: Taking taylor expansion of (pow a 2) in a
9.458 * [taylor]: Taking taylor expansion of a in a
9.458 * [backup-simplify]: Simplify 0 into 0
9.458 * [backup-simplify]: Simplify 1 into 1
9.458 * [backup-simplify]: Simplify (* 1 1) into 1
9.459 * [backup-simplify]: Simplify (/ 1 1) into 1
9.459 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
9.459 * [taylor]: Taking taylor expansion of (pow b 2) in a
9.459 * [taylor]: Taking taylor expansion of b in a
9.459 * [backup-simplify]: Simplify b into b
9.459 * [backup-simplify]: Simplify (* b b) into (pow b 2)
9.459 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
9.459 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
9.459 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
9.459 * [taylor]: Taking taylor expansion of (pow a 2) in a
9.459 * [taylor]: Taking taylor expansion of a in a
9.459 * [backup-simplify]: Simplify 0 into 0
9.459 * [backup-simplify]: Simplify 1 into 1
9.460 * [backup-simplify]: Simplify (* 1 1) into 1
9.460 * [backup-simplify]: Simplify (/ 1 1) into 1
9.460 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
9.460 * [taylor]: Taking taylor expansion of (pow b 2) in a
9.460 * [taylor]: Taking taylor expansion of b in a
9.460 * [backup-simplify]: Simplify b into b
9.460 * [backup-simplify]: Simplify (* b b) into (pow b 2)
9.460 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
9.461 * [backup-simplify]: Simplify (+ 1 0) into 1
9.461 * [taylor]: Taking taylor expansion of 1 in b
9.461 * [backup-simplify]: Simplify 1 into 1
9.461 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
9.462 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
9.462 * [backup-simplify]: Simplify (+ 0 0) into 0
9.462 * [taylor]: Taking taylor expansion of 0 in b
9.462 * [backup-simplify]: Simplify 0 into 0
9.463 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
9.464 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
9.464 * [backup-simplify]: Simplify (- (/ 1 (pow b 2))) into (- (/ 1 (pow b 2)))
9.464 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow b 2)))) into (- (/ 1 (pow b 2)))
9.464 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
9.464 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
9.464 * [taylor]: Taking taylor expansion of (pow b 2) in b
9.465 * [taylor]: Taking taylor expansion of b in b
9.465 * [backup-simplify]: Simplify 0 into 0
9.465 * [backup-simplify]: Simplify 1 into 1
9.465 * [backup-simplify]: Simplify (* 1 1) into 1
9.465 * [backup-simplify]: Simplify (/ 1 1) into 1
9.466 * [backup-simplify]: Simplify (- 1) into -1
9.466 * [backup-simplify]: Simplify -1 into -1
9.466 * [backup-simplify]: Simplify 1 into 1
9.467 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
9.467 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
9.468 * [backup-simplify]: Simplify (+ (* b 0) (* 0 b)) into 0
9.468 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))))) into 0
9.468 * [backup-simplify]: Simplify (- 0) into 0
9.469 * [backup-simplify]: Simplify (+ 0 0) into 0
9.469 * [taylor]: Taking taylor expansion of 0 in b
9.469 * [backup-simplify]: Simplify 0 into 0
9.469 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
9.470 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
9.470 * [backup-simplify]: Simplify (- 0) into 0
9.470 * [backup-simplify]: Simplify 0 into 0
9.470 * [backup-simplify]: Simplify 0 into 0
9.470 * [backup-simplify]: Simplify 0 into 0
9.471 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
9.472 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
9.473 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (* 0 b))) into 0
9.473 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))) (* 0 (/ 0 (pow b 2))))) into 0
9.474 * [backup-simplify]: Simplify (- 0) into 0
9.474 * [backup-simplify]: Simplify (+ 0 0) into 0
9.474 * [taylor]: Taking taylor expansion of 0 in b
9.474 * [backup-simplify]: Simplify 0 into 0
9.475 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
9.476 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
9.476 * [backup-simplify]: Simplify (- 0) into 0
9.476 * [backup-simplify]: Simplify 0 into 0
9.476 * [backup-simplify]: Simplify 0 into 0
9.476 * [backup-simplify]: Simplify 0 into 0
9.477 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 a))) 2)) (* -1 (pow (* (/ 1 (/ 1 b)) 1) 2))) into (- (pow a 2) (pow b 2))
9.477 * [backup-simplify]: Simplify (- (* (/ 1 (- a)) (/ 1 (- a))) (* (/ 1 (- b)) (/ 1 (- b)))) into (- (/ 1 (pow a 2)) (/ 1 (pow b 2)))
9.477 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
9.477 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
9.477 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
9.477 * [taylor]: Taking taylor expansion of (pow a 2) in b
9.477 * [taylor]: Taking taylor expansion of a in b
9.477 * [backup-simplify]: Simplify a into a
9.477 * [backup-simplify]: Simplify (* a a) into (pow a 2)
9.477 * [backup-simplify]: Simplify (/ 1 (pow a 2)) into (/ 1 (pow a 2))
9.477 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
9.477 * [taylor]: Taking taylor expansion of (pow b 2) in b
9.477 * [taylor]: Taking taylor expansion of b in b
9.477 * [backup-simplify]: Simplify 0 into 0
9.477 * [backup-simplify]: Simplify 1 into 1
9.478 * [backup-simplify]: Simplify (* 1 1) into 1
9.478 * [backup-simplify]: Simplify (/ 1 1) into 1
9.478 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
9.478 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
9.478 * [taylor]: Taking taylor expansion of (pow a 2) in a
9.478 * [taylor]: Taking taylor expansion of a in a
9.478 * [backup-simplify]: Simplify 0 into 0
9.478 * [backup-simplify]: Simplify 1 into 1
9.479 * [backup-simplify]: Simplify (* 1 1) into 1
9.479 * [backup-simplify]: Simplify (/ 1 1) into 1
9.479 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
9.479 * [taylor]: Taking taylor expansion of (pow b 2) in a
9.479 * [taylor]: Taking taylor expansion of b in a
9.479 * [backup-simplify]: Simplify b into b
9.479 * [backup-simplify]: Simplify (* b b) into (pow b 2)
9.479 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
9.479 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
9.479 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
9.480 * [taylor]: Taking taylor expansion of (pow a 2) in a
9.480 * [taylor]: Taking taylor expansion of a in a
9.480 * [backup-simplify]: Simplify 0 into 0
9.480 * [backup-simplify]: Simplify 1 into 1
9.480 * [backup-simplify]: Simplify (* 1 1) into 1
9.480 * [backup-simplify]: Simplify (/ 1 1) into 1
9.480 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
9.480 * [taylor]: Taking taylor expansion of (pow b 2) in a
9.480 * [taylor]: Taking taylor expansion of b in a
9.481 * [backup-simplify]: Simplify b into b
9.481 * [backup-simplify]: Simplify (* b b) into (pow b 2)
9.481 * [backup-simplify]: Simplify (/ 1 (pow b 2)) into (/ 1 (pow b 2))
9.481 * [backup-simplify]: Simplify (+ 1 0) into 1
9.481 * [taylor]: Taking taylor expansion of 1 in b
9.481 * [backup-simplify]: Simplify 1 into 1
9.482 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
9.483 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
9.483 * [backup-simplify]: Simplify (+ 0 0) into 0
9.483 * [taylor]: Taking taylor expansion of 0 in b
9.483 * [backup-simplify]: Simplify 0 into 0
9.484 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
9.485 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
9.485 * [backup-simplify]: Simplify (- (/ 1 (pow b 2))) into (- (/ 1 (pow b 2)))
9.486 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow b 2)))) into (- (/ 1 (pow b 2)))
9.486 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
9.486 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
9.486 * [taylor]: Taking taylor expansion of (pow b 2) in b
9.486 * [taylor]: Taking taylor expansion of b in b
9.486 * [backup-simplify]: Simplify 0 into 0
9.486 * [backup-simplify]: Simplify 1 into 1
9.486 * [backup-simplify]: Simplify (* 1 1) into 1
9.486 * [backup-simplify]: Simplify (/ 1 1) into 1
9.487 * [backup-simplify]: Simplify (- 1) into -1
9.487 * [backup-simplify]: Simplify -1 into -1
9.487 * [backup-simplify]: Simplify 1 into 1
9.488 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
9.489 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
9.489 * [backup-simplify]: Simplify (+ (* b 0) (* 0 b)) into 0
9.489 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))))) into 0
9.490 * [backup-simplify]: Simplify (- 0) into 0
9.490 * [backup-simplify]: Simplify (+ 0 0) into 0
9.490 * [taylor]: Taking taylor expansion of 0 in b
9.490 * [backup-simplify]: Simplify 0 into 0
9.491 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
9.491 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
9.491 * [backup-simplify]: Simplify (- 0) into 0
9.491 * [backup-simplify]: Simplify 0 into 0
9.492 * [backup-simplify]: Simplify 0 into 0
9.492 * [backup-simplify]: Simplify 0 into 0
9.493 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
9.493 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
9.494 * [backup-simplify]: Simplify (+ (* b 0) (+ (* 0 0) (* 0 b))) into 0
9.494 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow b 2)) (/ 0 (pow b 2))) (* 0 (/ 0 (pow b 2))))) into 0
9.495 * [backup-simplify]: Simplify (- 0) into 0
9.495 * [backup-simplify]: Simplify (+ 0 0) into 0
9.495 * [taylor]: Taking taylor expansion of 0 in b
9.495 * [backup-simplify]: Simplify 0 into 0
9.496 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
9.497 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
9.497 * [backup-simplify]: Simplify (- 0) into 0
9.497 * [backup-simplify]: Simplify 0 into 0
9.497 * [backup-simplify]: Simplify 0 into 0
9.497 * [backup-simplify]: Simplify 0 into 0
9.497 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- a)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- b))) 1) 2))) into (- (pow a 2) (pow b 2))
9.498 * * * [progress]: simplifying candidates
9.498 * [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))
9.499 * * [simplify]: iteration 0: 33 enodes
9.515 * * [simplify]: iteration 1: 96 enodes
9.571 * * [simplify]: iteration 2: 286 enodes
9.801 * * [simplify]: iteration 3: 1242 enodes
10.983 * * [simplify]: iteration complete: 5006 enodes
10.983 * * [simplify]: Extracting #0: cost 14 inf + 0
10.984 * * [simplify]: Extracting #1: cost 273 inf + 0
10.991 * * [simplify]: Extracting #2: cost 1425 inf + 497
11.010 * * [simplify]: Extracting #3: cost 1674 inf + 34181
11.086 * * [simplify]: Extracting #4: cost 581 inf + 262868
11.226 * * [simplify]: Extracting #5: cost 48 inf + 402351
11.372 * * [simplify]: Extracting #6: cost 6 inf + 414093
11.519 * * [simplify]: Extracting #7: cost 0 inf + 415851
11.665 * [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))
11.666 * * * [progress]: adding candidates to table
11.776 * * [progress]: iteration 2 / 4
11.776 * * * [progress]: picking best candidate
11.782 * * * * [pick]: Picked  #<alt (λ (a b) (* (+ a b) (- a b)))>
11.782 * * * [progress]: localizing error
11.798 * * * [progress]: generating rewritten candidates
11.798 * * * [progress]: generating series expansions
11.798 * * * [progress]: simplifying candidates
11.799 * [simplify]: Simplifying:
  
11.799 * * [simplify]: iteration 0: 0 enodes
11.799 * * [simplify]: iteration complete: 0 enodes
11.799 * * [simplify]: Extracting #0: cost 0 inf + 0
11.799 * [simplify]: Simplified to:
  
11.799 * * * [progress]: adding candidates to table
11.800 * [progress]: [Phase 3 of 3] Extracting.
11.806 * [simplify]: Simplifying:
  (* (+ a b) (- a b))
11.806 * * [simplify]: iteration 0: 5 enodes
11.807 * * [simplify]: iteration 1: 7 enodes
11.808 * * [simplify]: iteration complete: 7 enodes
11.808 * * [simplify]: Extracting #0: cost 1 inf + 0
11.808 * * [simplify]: Extracting #1: cost 3 inf + 0
11.808 * * [simplify]: Extracting #2: cost 5 inf + 0
11.808 * * [simplify]: Extracting #3: cost 2 inf + 44
11.808 * * [simplify]: Extracting #4: cost 0 inf + 208
11.808 * [simplify]: Simplified to:
  (* (+ a b) (- a b))
13.719 * [regime-testing]: Baseline error score: 0.0005000625078134767
13.738 * [regime-testing]: Oracle error score: 0.0005000625078134767
13.738 * [regime-testing]: End program error score: 0.0005000625078134767
13.907 * [regime-testing]: Target error score: 0.0005000625078134767