18.631 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.037 * * * [progress]: [2/2] Setting up program.
0.044 * [progress]: [Phase 2 of 3] Improving.
0.044 * [simplify]: Simplifying:
  (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673)
0.044 * * [simplify]: iteration 0: 10 enodes
0.048 * * [simplify]: iteration 1: 19 enodes
0.056 * * [simplify]: iteration 2: 42 enodes
0.073 * * [simplify]: iteration 3: 85 enodes
0.100 * * [simplify]: iteration 4: 183 enodes
0.156 * * [simplify]: iteration 5: 361 enodes
0.290 * * [simplify]: iteration 6: 645 enodes
0.487 * * [simplify]: iteration 7: 911 enodes
0.670 * * [simplify]: iteration 8: 1180 enodes
0.960 * * [simplify]: iteration 9: 1691 enodes
1.351 * * [simplify]: iteration 10: 2382 enodes
1.754 * * [simplify]: iteration 11: 2859 enodes
2.098 * * [simplify]: iteration 12: 3243 enodes
2.370 * * [simplify]: iteration 13: 3552 enodes
2.545 * * [simplify]: iteration 14: 3857 enodes
2.776 * * [simplify]: iteration 15: 4144 enodes
3.078 * * [simplify]: iteration 16: 4453 enodes
3.331 * * [simplify]: iteration 17: 4757 enodes
3.462 * * [simplify]: iteration complete: 5000 enodes
3.462 * * [simplify]: Extracting #0: cost 1 inf + 0
3.462 * * [simplify]: Extracting #1: cost 31 inf + 0
3.463 * * [simplify]: Extracting #2: cost 96 inf + 42
3.464 * * [simplify]: Extracting #3: cost 100 inf + 1489
3.469 * * [simplify]: Extracting #4: cost 13 inf + 10906
3.475 * * [simplify]: Extracting #5: cost 0 inf + 12102
3.479 * [simplify]: Simplified to:
  (- 0.918938533204673 (- (* x 1.0) (* y (- x 0.5))))
3.480 * * [progress]: iteration 1 / 4
3.480 * * * [progress]: picking best candidate
3.484 * * * * [pick]: Picked  #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>
3.484 * * * [progress]: localizing error
3.500 * * * [progress]: generating rewritten candidates
3.500 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
3.520 * * * [progress]: generating series expansions
3.520 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
3.520 * [backup-simplify]: Simplify (- (* x (- y 1.0)) (* y 0.5)) into (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
3.520 * [approximate]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in (x y) around 0
3.520 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in y
3.520 * [taylor]: Taking taylor expansion of (* x y) in y
3.520 * [taylor]: Taking taylor expansion of x in y
3.520 * [backup-simplify]: Simplify x into x
3.520 * [taylor]: Taking taylor expansion of y in y
3.520 * [backup-simplify]: Simplify 0 into 0
3.520 * [backup-simplify]: Simplify 1 into 1
3.520 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in y
3.520 * [taylor]: Taking taylor expansion of (* 1.0 x) in y
3.520 * [taylor]: Taking taylor expansion of 1.0 in y
3.520 * [backup-simplify]: Simplify 1.0 into 1.0
3.520 * [taylor]: Taking taylor expansion of x in y
3.520 * [backup-simplify]: Simplify x into x
3.520 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
3.520 * [taylor]: Taking taylor expansion of 0.5 in y
3.520 * [backup-simplify]: Simplify 0.5 into 0.5
3.520 * [taylor]: Taking taylor expansion of y in y
3.520 * [backup-simplify]: Simplify 0 into 0
3.520 * [backup-simplify]: Simplify 1 into 1
3.520 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in x
3.520 * [taylor]: Taking taylor expansion of (* x y) in x
3.520 * [taylor]: Taking taylor expansion of x in x
3.520 * [backup-simplify]: Simplify 0 into 0
3.520 * [backup-simplify]: Simplify 1 into 1
3.521 * [taylor]: Taking taylor expansion of y in x
3.521 * [backup-simplify]: Simplify y into y
3.521 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in x
3.521 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
3.521 * [taylor]: Taking taylor expansion of 1.0 in x
3.521 * [backup-simplify]: Simplify 1.0 into 1.0
3.521 * [taylor]: Taking taylor expansion of x in x
3.521 * [backup-simplify]: Simplify 0 into 0
3.521 * [backup-simplify]: Simplify 1 into 1
3.521 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
3.521 * [taylor]: Taking taylor expansion of 0.5 in x
3.521 * [backup-simplify]: Simplify 0.5 into 0.5
3.521 * [taylor]: Taking taylor expansion of y in x
3.521 * [backup-simplify]: Simplify y into y
3.521 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in x
3.521 * [taylor]: Taking taylor expansion of (* x y) in x
3.521 * [taylor]: Taking taylor expansion of x in x
3.521 * [backup-simplify]: Simplify 0 into 0
3.521 * [backup-simplify]: Simplify 1 into 1
3.521 * [taylor]: Taking taylor expansion of y in x
3.521 * [backup-simplify]: Simplify y into y
3.521 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in x
3.521 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
3.521 * [taylor]: Taking taylor expansion of 1.0 in x
3.521 * [backup-simplify]: Simplify 1.0 into 1.0
3.521 * [taylor]: Taking taylor expansion of x in x
3.521 * [backup-simplify]: Simplify 0 into 0
3.521 * [backup-simplify]: Simplify 1 into 1
3.521 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
3.521 * [taylor]: Taking taylor expansion of 0.5 in x
3.521 * [backup-simplify]: Simplify 0.5 into 0.5
3.521 * [taylor]: Taking taylor expansion of y in x
3.521 * [backup-simplify]: Simplify y into y
3.521 * [backup-simplify]: Simplify (* 0 y) into 0
3.522 * [backup-simplify]: Simplify (* 1.0 0) into 0
3.522 * [backup-simplify]: Simplify (* 0.5 y) into (* 0.5 y)
3.522 * [backup-simplify]: Simplify (+ 0 (* 0.5 y)) into (* 0.5 y)
3.522 * [backup-simplify]: Simplify (- (* 0.5 y)) into (- (* 0.5 y))
3.522 * [backup-simplify]: Simplify (+ 0 (- (* 0.5 y))) into (- (* 0.5 y))
3.522 * [taylor]: Taking taylor expansion of (- (* 0.5 y)) in y
3.522 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
3.522 * [taylor]: Taking taylor expansion of 0.5 in y
3.522 * [backup-simplify]: Simplify 0.5 into 0.5
3.522 * [taylor]: Taking taylor expansion of y in y
3.522 * [backup-simplify]: Simplify 0 into 0
3.522 * [backup-simplify]: Simplify 1 into 1
3.523 * [backup-simplify]: Simplify (* 0.5 0) into 0
3.523 * [backup-simplify]: Simplify (- 0) into 0
3.523 * [backup-simplify]: Simplify 0 into 0
3.524 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
3.525 * [backup-simplify]: Simplify (+ (* 1.0 1) (* 0 0)) into 1.0
3.525 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 y)) into 0
3.526 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
3.526 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
3.526 * [backup-simplify]: Simplify (+ y (- 1.0)) into (- y 1.0)
3.526 * [taylor]: Taking taylor expansion of (- y 1.0) in y
3.526 * [taylor]: Taking taylor expansion of y in y
3.526 * [backup-simplify]: Simplify 0 into 0
3.526 * [backup-simplify]: Simplify 1 into 1
3.526 * [taylor]: Taking taylor expansion of 1.0 in y
3.526 * [backup-simplify]: Simplify 1.0 into 1.0
3.527 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
3.527 * [backup-simplify]: Simplify (+ 0 (- 1.0)) into (- 1.0)
3.528 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
3.529 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
3.529 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
3.530 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
3.531 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
3.531 * [backup-simplify]: Simplify (+ (* 1.0 0) (+ (* 0 1) (* 0 0))) into 0
3.532 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 y))) into 0
3.532 * [backup-simplify]: Simplify (+ 0 0) into 0
3.533 * [backup-simplify]: Simplify (- 0) into 0
3.533 * [backup-simplify]: Simplify (+ 0 0) into 0
3.533 * [taylor]: Taking taylor expansion of 0 in y
3.533 * [backup-simplify]: Simplify 0 into 0
3.533 * [backup-simplify]: Simplify 0 into 0
3.533 * [backup-simplify]: Simplify (- 0) into 0
3.534 * [backup-simplify]: Simplify (+ 1 0) into 1
3.534 * [backup-simplify]: Simplify 1 into 1
3.535 * [backup-simplify]: Simplify (+ (* 1 (* y x)) (+ (* (- 0.5) (* y 1)) (* (- 1.0) (* 1 x)))) into (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
3.535 * [backup-simplify]: Simplify (- (* (/ 1 x) (- (/ 1 y) 1.0)) (* (/ 1 y) 0.5)) into (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))))
3.535 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in (x y) around 0
3.535 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
3.535 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
3.535 * [taylor]: Taking taylor expansion of (* x y) in y
3.535 * [taylor]: Taking taylor expansion of x in y
3.535 * [backup-simplify]: Simplify x into x
3.535 * [taylor]: Taking taylor expansion of y in y
3.535 * [backup-simplify]: Simplify 0 into 0
3.535 * [backup-simplify]: Simplify 1 into 1
3.535 * [backup-simplify]: Simplify (* x 0) into 0
3.536 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
3.536 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.536 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in y
3.536 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
3.536 * [taylor]: Taking taylor expansion of 1.0 in y
3.536 * [backup-simplify]: Simplify 1.0 into 1.0
3.536 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.536 * [taylor]: Taking taylor expansion of x in y
3.536 * [backup-simplify]: Simplify x into x
3.536 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.536 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
3.536 * [taylor]: Taking taylor expansion of 0.5 in y
3.536 * [backup-simplify]: Simplify 0.5 into 0.5
3.536 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.536 * [taylor]: Taking taylor expansion of y in y
3.536 * [backup-simplify]: Simplify 0 into 0
3.536 * [backup-simplify]: Simplify 1 into 1
3.537 * [backup-simplify]: Simplify (/ 1 1) into 1
3.537 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
3.537 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
3.537 * [taylor]: Taking taylor expansion of (* x y) in x
3.537 * [taylor]: Taking taylor expansion of x in x
3.537 * [backup-simplify]: Simplify 0 into 0
3.537 * [backup-simplify]: Simplify 1 into 1
3.537 * [taylor]: Taking taylor expansion of y in x
3.537 * [backup-simplify]: Simplify y into y
3.537 * [backup-simplify]: Simplify (* 0 y) into 0
3.537 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
3.537 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.537 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in x
3.537 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
3.537 * [taylor]: Taking taylor expansion of 1.0 in x
3.537 * [backup-simplify]: Simplify 1.0 into 1.0
3.537 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.537 * [taylor]: Taking taylor expansion of x in x
3.537 * [backup-simplify]: Simplify 0 into 0
3.537 * [backup-simplify]: Simplify 1 into 1
3.538 * [backup-simplify]: Simplify (/ 1 1) into 1
3.538 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
3.538 * [taylor]: Taking taylor expansion of 0.5 in x
3.538 * [backup-simplify]: Simplify 0.5 into 0.5
3.538 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.538 * [taylor]: Taking taylor expansion of y in x
3.538 * [backup-simplify]: Simplify y into y
3.538 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.538 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
3.538 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
3.538 * [taylor]: Taking taylor expansion of (* x y) in x
3.538 * [taylor]: Taking taylor expansion of x in x
3.538 * [backup-simplify]: Simplify 0 into 0
3.538 * [backup-simplify]: Simplify 1 into 1
3.538 * [taylor]: Taking taylor expansion of y in x
3.538 * [backup-simplify]: Simplify y into y
3.538 * [backup-simplify]: Simplify (* 0 y) into 0
3.538 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
3.538 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.538 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in x
3.538 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
3.538 * [taylor]: Taking taylor expansion of 1.0 in x
3.538 * [backup-simplify]: Simplify 1.0 into 1.0
3.538 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.538 * [taylor]: Taking taylor expansion of x in x
3.538 * [backup-simplify]: Simplify 0 into 0
3.538 * [backup-simplify]: Simplify 1 into 1
3.539 * [backup-simplify]: Simplify (/ 1 1) into 1
3.539 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
3.539 * [taylor]: Taking taylor expansion of 0.5 in x
3.539 * [backup-simplify]: Simplify 0.5 into 0.5
3.539 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.539 * [taylor]: Taking taylor expansion of y in x
3.539 * [backup-simplify]: Simplify y into y
3.539 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.539 * [backup-simplify]: Simplify (* 1.0 1) into 1.0
3.539 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
3.540 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
3.540 * [backup-simplify]: Simplify (+ (/ 1 y) (- 1.0)) into (- (/ 1 y) 1.0)
3.540 * [taylor]: Taking taylor expansion of (- (/ 1 y) 1.0) in y
3.540 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.540 * [taylor]: Taking taylor expansion of y in y
3.540 * [backup-simplify]: Simplify 0 into 0
3.540 * [backup-simplify]: Simplify 1 into 1
3.540 * [backup-simplify]: Simplify (/ 1 1) into 1
3.540 * [taylor]: Taking taylor expansion of 1.0 in y
3.540 * [backup-simplify]: Simplify 1.0 into 1.0
3.541 * [backup-simplify]: Simplify (+ 1 0) into 1
3.541 * [backup-simplify]: Simplify 1 into 1
3.541 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
3.541 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
3.542 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.542 * [backup-simplify]: Simplify (+ (* 1.0 0) (* 0 1)) into 0
3.542 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
3.542 * [backup-simplify]: Simplify (+ 0 (/ 0.5 y)) into (* 0.5 (/ 1 y))
3.543 * [backup-simplify]: Simplify (- (* 0.5 (/ 1 y))) into (- (* 0.5 (/ 1 y)))
3.543 * [backup-simplify]: Simplify (+ 0 (- (* 0.5 (/ 1 y)))) into (- (* 0.5 (/ 1 y)))
3.543 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
3.543 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
3.543 * [taylor]: Taking taylor expansion of 0.5 in y
3.543 * [backup-simplify]: Simplify 0.5 into 0.5
3.543 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.543 * [taylor]: Taking taylor expansion of y in y
3.543 * [backup-simplify]: Simplify 0 into 0
3.543 * [backup-simplify]: Simplify 1 into 1
3.543 * [backup-simplify]: Simplify (/ 1 1) into 1
3.543 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
3.543 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
3.544 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
3.544 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.544 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
3.545 * [backup-simplify]: Simplify (+ 0 (- 1.0)) into (- 1.0)
3.545 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
3.546 * [backup-simplify]: Simplify (+ (* (- 1.0) (* 1 (/ 1 (/ 1 x)))) (+ (* (- 0.5) (* (/ 1 (/ 1 y)) 1)) (* 1 (* (/ 1 (/ 1 y)) (/ 1 (/ 1 x)))))) into (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
3.546 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (- (/ 1 (- y)) 1.0)) (* (/ 1 (- y)) 0.5)) into (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))))
3.546 * [approximate]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in (x y) around 0
3.546 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
3.546 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
3.546 * [taylor]: Taking taylor expansion of (* x y) in y
3.546 * [taylor]: Taking taylor expansion of x in y
3.546 * [backup-simplify]: Simplify x into x
3.546 * [taylor]: Taking taylor expansion of y in y
3.546 * [backup-simplify]: Simplify 0 into 0
3.546 * [backup-simplify]: Simplify 1 into 1
3.546 * [backup-simplify]: Simplify (* x 0) into 0
3.546 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
3.547 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.547 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in y
3.547 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
3.547 * [taylor]: Taking taylor expansion of 1.0 in y
3.547 * [backup-simplify]: Simplify 1.0 into 1.0
3.547 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.547 * [taylor]: Taking taylor expansion of x in y
3.547 * [backup-simplify]: Simplify x into x
3.547 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.547 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
3.547 * [taylor]: Taking taylor expansion of 0.5 in y
3.547 * [backup-simplify]: Simplify 0.5 into 0.5
3.547 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.547 * [taylor]: Taking taylor expansion of y in y
3.547 * [backup-simplify]: Simplify 0 into 0
3.547 * [backup-simplify]: Simplify 1 into 1
3.547 * [backup-simplify]: Simplify (/ 1 1) into 1
3.547 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
3.547 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
3.547 * [taylor]: Taking taylor expansion of (* x y) in x
3.547 * [taylor]: Taking taylor expansion of x in x
3.547 * [backup-simplify]: Simplify 0 into 0
3.547 * [backup-simplify]: Simplify 1 into 1
3.547 * [taylor]: Taking taylor expansion of y in x
3.547 * [backup-simplify]: Simplify y into y
3.547 * [backup-simplify]: Simplify (* 0 y) into 0
3.547 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
3.548 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.548 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in x
3.548 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
3.548 * [taylor]: Taking taylor expansion of 1.0 in x
3.548 * [backup-simplify]: Simplify 1.0 into 1.0
3.548 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.548 * [taylor]: Taking taylor expansion of x in x
3.548 * [backup-simplify]: Simplify 0 into 0
3.548 * [backup-simplify]: Simplify 1 into 1
3.548 * [backup-simplify]: Simplify (/ 1 1) into 1
3.548 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
3.548 * [taylor]: Taking taylor expansion of 0.5 in x
3.548 * [backup-simplify]: Simplify 0.5 into 0.5
3.548 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.548 * [taylor]: Taking taylor expansion of y in x
3.548 * [backup-simplify]: Simplify y into y
3.548 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.548 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
3.548 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
3.548 * [taylor]: Taking taylor expansion of (* x y) in x
3.548 * [taylor]: Taking taylor expansion of x in x
3.548 * [backup-simplify]: Simplify 0 into 0
3.548 * [backup-simplify]: Simplify 1 into 1
3.548 * [taylor]: Taking taylor expansion of y in x
3.548 * [backup-simplify]: Simplify y into y
3.548 * [backup-simplify]: Simplify (* 0 y) into 0
3.548 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
3.549 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.549 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in x
3.549 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
3.549 * [taylor]: Taking taylor expansion of 1.0 in x
3.549 * [backup-simplify]: Simplify 1.0 into 1.0
3.549 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.549 * [taylor]: Taking taylor expansion of x in x
3.549 * [backup-simplify]: Simplify 0 into 0
3.549 * [backup-simplify]: Simplify 1 into 1
3.549 * [backup-simplify]: Simplify (/ 1 1) into 1
3.549 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
3.549 * [taylor]: Taking taylor expansion of 0.5 in x
3.549 * [backup-simplify]: Simplify 0.5 into 0.5
3.549 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.549 * [taylor]: Taking taylor expansion of y in x
3.549 * [backup-simplify]: Simplify y into y
3.549 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.549 * [backup-simplify]: Simplify (* 1.0 1) into 1.0
3.550 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
3.550 * [backup-simplify]: Simplify (+ (/ 1 y) 1.0) into (+ 1.0 (/ 1 y))
3.550 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 y)) in y
3.550 * [taylor]: Taking taylor expansion of 1.0 in y
3.550 * [backup-simplify]: Simplify 1.0 into 1.0
3.550 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.550 * [taylor]: Taking taylor expansion of y in y
3.550 * [backup-simplify]: Simplify 0 into 0
3.550 * [backup-simplify]: Simplify 1 into 1
3.550 * [backup-simplify]: Simplify (/ 1 1) into 1
3.550 * [backup-simplify]: Simplify (+ 0 1) into 1
3.550 * [backup-simplify]: Simplify 1 into 1
3.551 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
3.551 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
3.551 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.552 * [backup-simplify]: Simplify (+ (* 1.0 0) (* 0 1)) into 0
3.552 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
3.552 * [backup-simplify]: Simplify (+ 0 (/ 0.5 y)) into (* 0.5 (/ 1 y))
3.552 * [backup-simplify]: Simplify (+ 0 (* 0.5 (/ 1 y))) into (* 0.5 (/ 1 y))
3.552 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
3.552 * [taylor]: Taking taylor expansion of 0.5 in y
3.552 * [backup-simplify]: Simplify 0.5 into 0.5
3.552 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.552 * [taylor]: Taking taylor expansion of y in y
3.552 * [backup-simplify]: Simplify 0 into 0
3.552 * [backup-simplify]: Simplify 1 into 1
3.552 * [backup-simplify]: Simplify (/ 1 1) into 1
3.553 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
3.553 * [backup-simplify]: Simplify 0.5 into 0.5
3.553 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.553 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
3.553 * [backup-simplify]: Simplify 1.0 into 1.0
3.554 * [backup-simplify]: Simplify (+ (* 1.0 (* 1 (/ 1 (/ 1 (- x))))) (+ (* 0.5 (* (/ 1 (/ 1 (- y))) 1)) (* 1 (* (/ 1 (/ 1 (- y))) (/ 1 (/ 1 (- x))))))) into (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
3.554 * * * [progress]: simplifying candidates
3.554 * [simplify]: Simplifying:
  (/ (exp (* x (- y 1.0))) (exp (* y 0.5)))
  (log (- (* x (- y 1.0)) (* y 0.5)))
  (exp (- (* x (- y 1.0)) (* y 0.5)))
  (* (cbrt (- (* x (- y 1.0)) (* y 0.5))) (cbrt (- (* x (- y 1.0)) (* y 0.5))))
  (cbrt (- (* x (- y 1.0)) (* y 0.5)))
  (* (* (- (* x (- y 1.0)) (* y 0.5)) (- (* x (- y 1.0)) (* y 0.5))) (- (* x (- y 1.0)) (* y 0.5)))
  (sqrt (- (* x (- y 1.0)) (* y 0.5)))
  (sqrt (- (* x (- y 1.0)) (* y 0.5)))
  (- (pow (* x (- y 1.0)) 3) (pow (* y 0.5) 3))
  (+ (* (* x (- y 1.0)) (* x (- y 1.0))) (+ (* (* y 0.5) (* y 0.5)) (* (* x (- y 1.0)) (* y 0.5))))
  (- (* y 0.5))
  (- (* (* x (- y 1.0)) (* x (- y 1.0))) (* (* y 0.5) (* y 0.5)))
  (+ (* x (- y 1.0)) (* y 0.5))
  (- (* x (- 1.0)) (* y 0.5))
  (- (* x (- 1.0)) (* y 0.5))
  (- (* (- 1.0) x) (* y 0.5))
  (- (* (- 1.0) x) (* y 0.5))
  (- (* y 0.5))
  (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
  (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
  (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
3.554 * * [simplify]: iteration 0: 40 enodes
3.568 * * [simplify]: iteration 1: 110 enodes
3.592 * * [simplify]: iteration 2: 306 enodes
3.725 * * [simplify]: iteration 3: 1139 enodes
4.693 * * [simplify]: iteration 4: 4857 enodes
5.746 * * [simplify]: iteration complete: 5017 enodes
5.746 * * [simplify]: Extracting #0: cost 13 inf + 0
5.746 * * [simplify]: Extracting #1: cost 238 inf + 0
5.749 * * [simplify]: Extracting #2: cost 820 inf + 533
5.754 * * [simplify]: Extracting #3: cost 1059 inf + 14289
5.795 * * [simplify]: Extracting #4: cost 467 inf + 158874
5.857 * * [simplify]: Extracting #5: cost 43 inf + 317694
5.929 * * [simplify]: Extracting #6: cost 0 inf + 340433
6.001 * [simplify]: Simplified to:
  (exp (- (* y (- x 0.5)) (* x 1.0)))
  (log (- (* y (- x 0.5)) (* x 1.0)))
  (exp (- (* y (- x 0.5)) (* x 1.0)))
  (* (cbrt (- (* y (- x 0.5)) (* x 1.0))) (cbrt (- (* y (- x 0.5)) (* x 1.0))))
  (cbrt (- (* y (- x 0.5)) (* x 1.0)))
  (* (- (* y (- x 0.5)) (* x 1.0)) (* (- (* y (- x 0.5)) (* x 1.0)) (- (* y (- x 0.5)) (* x 1.0))))
  (sqrt (- (* y (- x 0.5)) (* x 1.0)))
  (sqrt (- (* y (- x 0.5)) (* x 1.0)))
  (- (* (* (- y 1.0) x) (* (* (- y 1.0) x) (* (- y 1.0) x))) (* (* (* 0.5 y) (* 0.5 y)) (* 0.5 y)))
  (+ (+ (* (* (- y 1.0) x) (* 0.5 y)) (* (* 0.5 y) (* 0.5 y))) (* (* (- y 1.0) x) (* (- y 1.0) x)))
  (* (- y) 0.5)
  (- (* (* (- y 1.0) x) (* (- y 1.0) x)) (* (* 0.5 y) (* 0.5 y)))
  (- (* y (+ 0.5 x)) (* x 1.0))
  (- (* (- y) 0.5) (* x 1.0))
  (- (* (- y) 0.5) (* x 1.0))
  (- (* (- y) 0.5) (* x 1.0))
  (- (* (- y) 0.5) (* x 1.0))
  (* (- y) 0.5)
  (- (* y (- x 0.5)) (* x 1.0))
  (- (* y (- x 0.5)) (* x 1.0))
  (- (* y (- x 0.5)) (* x 1.0))
6.003 * * * [progress]: adding candidates to table
6.074 * * [progress]: iteration 2 / 4
6.074 * * * [progress]: picking best candidate
6.077 * * * * [pick]: Picked  #<alt (λ (x y) (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673))>
6.077 * * * [progress]: localizing error
6.089 * * * [progress]: generating rewritten candidates
6.089 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
6.104 * * * [progress]: generating series expansions
6.104 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
6.104 * [backup-simplify]: Simplify (- (* y (- x 0.5)) (* x 1.0)) into (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
6.104 * [approximate]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in (y x) around 0
6.104 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in x
6.104 * [taylor]: Taking taylor expansion of (* x y) in x
6.104 * [taylor]: Taking taylor expansion of x in x
6.104 * [backup-simplify]: Simplify 0 into 0
6.104 * [backup-simplify]: Simplify 1 into 1
6.104 * [taylor]: Taking taylor expansion of y in x
6.104 * [backup-simplify]: Simplify y into y
6.104 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in x
6.104 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
6.104 * [taylor]: Taking taylor expansion of 1.0 in x
6.104 * [backup-simplify]: Simplify 1.0 into 1.0
6.104 * [taylor]: Taking taylor expansion of x in x
6.104 * [backup-simplify]: Simplify 0 into 0
6.104 * [backup-simplify]: Simplify 1 into 1
6.104 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
6.104 * [taylor]: Taking taylor expansion of 0.5 in x
6.104 * [backup-simplify]: Simplify 0.5 into 0.5
6.104 * [taylor]: Taking taylor expansion of y in x
6.104 * [backup-simplify]: Simplify y into y
6.104 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in y
6.104 * [taylor]: Taking taylor expansion of (* x y) in y
6.104 * [taylor]: Taking taylor expansion of x in y
6.104 * [backup-simplify]: Simplify x into x
6.104 * [taylor]: Taking taylor expansion of y in y
6.104 * [backup-simplify]: Simplify 0 into 0
6.104 * [backup-simplify]: Simplify 1 into 1
6.104 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in y
6.104 * [taylor]: Taking taylor expansion of (* 1.0 x) in y
6.104 * [taylor]: Taking taylor expansion of 1.0 in y
6.104 * [backup-simplify]: Simplify 1.0 into 1.0
6.104 * [taylor]: Taking taylor expansion of x in y
6.104 * [backup-simplify]: Simplify x into x
6.104 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
6.104 * [taylor]: Taking taylor expansion of 0.5 in y
6.104 * [backup-simplify]: Simplify 0.5 into 0.5
6.104 * [taylor]: Taking taylor expansion of y in y
6.104 * [backup-simplify]: Simplify 0 into 0
6.104 * [backup-simplify]: Simplify 1 into 1
6.104 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in y
6.104 * [taylor]: Taking taylor expansion of (* x y) in y
6.104 * [taylor]: Taking taylor expansion of x in y
6.104 * [backup-simplify]: Simplify x into x
6.104 * [taylor]: Taking taylor expansion of y in y
6.105 * [backup-simplify]: Simplify 0 into 0
6.105 * [backup-simplify]: Simplify 1 into 1
6.105 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in y
6.105 * [taylor]: Taking taylor expansion of (* 1.0 x) in y
6.105 * [taylor]: Taking taylor expansion of 1.0 in y
6.105 * [backup-simplify]: Simplify 1.0 into 1.0
6.105 * [taylor]: Taking taylor expansion of x in y
6.105 * [backup-simplify]: Simplify x into x
6.105 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
6.105 * [taylor]: Taking taylor expansion of 0.5 in y
6.105 * [backup-simplify]: Simplify 0.5 into 0.5
6.105 * [taylor]: Taking taylor expansion of y in y
6.105 * [backup-simplify]: Simplify 0 into 0
6.105 * [backup-simplify]: Simplify 1 into 1
6.105 * [backup-simplify]: Simplify (* x 0) into 0
6.105 * [backup-simplify]: Simplify (* 1.0 x) into (* 1.0 x)
6.105 * [backup-simplify]: Simplify (* 0.5 0) into 0
6.105 * [backup-simplify]: Simplify (+ (* 1.0 x) 0) into (* 1.0 x)
6.105 * [backup-simplify]: Simplify (- (* 1.0 x)) into (- (* 1.0 x))
6.105 * [backup-simplify]: Simplify (+ 0 (- (* 1.0 x))) into (- (* 1.0 x))
6.105 * [taylor]: Taking taylor expansion of (- (* 1.0 x)) in x
6.106 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
6.106 * [taylor]: Taking taylor expansion of 1.0 in x
6.106 * [backup-simplify]: Simplify 1.0 into 1.0
6.106 * [taylor]: Taking taylor expansion of x in x
6.106 * [backup-simplify]: Simplify 0 into 0
6.106 * [backup-simplify]: Simplify 1 into 1
6.106 * [backup-simplify]: Simplify (* 1.0 0) into 0
6.106 * [backup-simplify]: Simplify (- 0) into 0
6.106 * [backup-simplify]: Simplify 0 into 0
6.106 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
6.107 * [backup-simplify]: Simplify (+ (* 1.0 0) (* 0 x)) into 0
6.108 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
6.108 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5
6.108 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
6.108 * [backup-simplify]: Simplify (+ x (- 0.5)) into (- x 0.5)
6.108 * [taylor]: Taking taylor expansion of (- x 0.5) in x
6.108 * [taylor]: Taking taylor expansion of x in x
6.108 * [backup-simplify]: Simplify 0 into 0
6.108 * [backup-simplify]: Simplify 1 into 1
6.108 * [taylor]: Taking taylor expansion of 0.5 in x
6.108 * [backup-simplify]: Simplify 0.5 into 0.5
6.109 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
6.109 * [backup-simplify]: Simplify (+ 0 (- 0.5)) into (- 0.5)
6.109 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
6.110 * [backup-simplify]: Simplify (+ (* 1.0 1) (* 0 0)) into 1.0
6.111 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
6.111 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
6.111 * [backup-simplify]: Simplify (+ (* x 0) (+ (* 0 1) (* 0 0))) into 0
6.112 * [backup-simplify]: Simplify (+ (* 1.0 0) (+ (* 0 0) (* 0 x))) into 0
6.112 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
6.112 * [backup-simplify]: Simplify (+ 0 0) into 0
6.113 * [backup-simplify]: Simplify (- 0) into 0
6.113 * [backup-simplify]: Simplify (+ 0 0) into 0
6.113 * [taylor]: Taking taylor expansion of 0 in x
6.113 * [backup-simplify]: Simplify 0 into 0
6.113 * [backup-simplify]: Simplify 0 into 0
6.113 * [backup-simplify]: Simplify (- 0) into 0
6.113 * [backup-simplify]: Simplify (+ 1 0) into 1
6.113 * [backup-simplify]: Simplify 1 into 1
6.114 * [backup-simplify]: Simplify (+ (* 1 (* x y)) (+ (* (- 1.0) (* x 1)) (* (- 0.5) (* 1 y)))) into (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
6.114 * [backup-simplify]: Simplify (- (* (/ 1 y) (- (/ 1 x) 0.5)) (* (/ 1 x) 1.0)) into (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))))
6.114 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in (y x) around 0
6.114 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
6.114 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
6.114 * [taylor]: Taking taylor expansion of (* x y) in x
6.114 * [taylor]: Taking taylor expansion of x in x
6.114 * [backup-simplify]: Simplify 0 into 0
6.114 * [backup-simplify]: Simplify 1 into 1
6.114 * [taylor]: Taking taylor expansion of y in x
6.114 * [backup-simplify]: Simplify y into y
6.114 * [backup-simplify]: Simplify (* 0 y) into 0
6.115 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
6.115 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
6.115 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in x
6.115 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
6.115 * [taylor]: Taking taylor expansion of 1.0 in x
6.115 * [backup-simplify]: Simplify 1.0 into 1.0
6.115 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.115 * [taylor]: Taking taylor expansion of x in x
6.115 * [backup-simplify]: Simplify 0 into 0
6.115 * [backup-simplify]: Simplify 1 into 1
6.115 * [backup-simplify]: Simplify (/ 1 1) into 1
6.115 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
6.115 * [taylor]: Taking taylor expansion of 0.5 in x
6.115 * [backup-simplify]: Simplify 0.5 into 0.5
6.115 * [taylor]: Taking taylor expansion of (/ 1 y) in x
6.115 * [taylor]: Taking taylor expansion of y in x
6.115 * [backup-simplify]: Simplify y into y
6.115 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
6.115 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
6.115 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
6.115 * [taylor]: Taking taylor expansion of (* x y) in y
6.115 * [taylor]: Taking taylor expansion of x in y
6.115 * [backup-simplify]: Simplify x into x
6.115 * [taylor]: Taking taylor expansion of y in y
6.115 * [backup-simplify]: Simplify 0 into 0
6.115 * [backup-simplify]: Simplify 1 into 1
6.115 * [backup-simplify]: Simplify (* x 0) into 0
6.116 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
6.116 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.116 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in y
6.116 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
6.116 * [taylor]: Taking taylor expansion of 1.0 in y
6.116 * [backup-simplify]: Simplify 1.0 into 1.0
6.116 * [taylor]: Taking taylor expansion of (/ 1 x) in y
6.116 * [taylor]: Taking taylor expansion of x in y
6.116 * [backup-simplify]: Simplify x into x
6.116 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.116 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
6.116 * [taylor]: Taking taylor expansion of 0.5 in y
6.116 * [backup-simplify]: Simplify 0.5 into 0.5
6.116 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.116 * [taylor]: Taking taylor expansion of y in y
6.116 * [backup-simplify]: Simplify 0 into 0
6.116 * [backup-simplify]: Simplify 1 into 1
6.116 * [backup-simplify]: Simplify (/ 1 1) into 1
6.116 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
6.116 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
6.116 * [taylor]: Taking taylor expansion of (* x y) in y
6.116 * [taylor]: Taking taylor expansion of x in y
6.116 * [backup-simplify]: Simplify x into x
6.116 * [taylor]: Taking taylor expansion of y in y
6.116 * [backup-simplify]: Simplify 0 into 0
6.116 * [backup-simplify]: Simplify 1 into 1
6.116 * [backup-simplify]: Simplify (* x 0) into 0
6.117 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
6.117 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.117 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in y
6.117 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
6.117 * [taylor]: Taking taylor expansion of 1.0 in y
6.117 * [backup-simplify]: Simplify 1.0 into 1.0
6.117 * [taylor]: Taking taylor expansion of (/ 1 x) in y
6.117 * [taylor]: Taking taylor expansion of x in y
6.117 * [backup-simplify]: Simplify x into x
6.117 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.117 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
6.117 * [taylor]: Taking taylor expansion of 0.5 in y
6.117 * [backup-simplify]: Simplify 0.5 into 0.5
6.117 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.117 * [taylor]: Taking taylor expansion of y in y
6.117 * [backup-simplify]: Simplify 0 into 0
6.117 * [backup-simplify]: Simplify 1 into 1
6.117 * [backup-simplify]: Simplify (/ 1 1) into 1
6.118 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
6.118 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5
6.118 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
6.118 * [backup-simplify]: Simplify (+ (/ 1 x) (- 0.5)) into (- (/ 1 x) 0.5)
6.118 * [taylor]: Taking taylor expansion of (- (/ 1 x) 0.5) in x
6.118 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.118 * [taylor]: Taking taylor expansion of x in x
6.118 * [backup-simplify]: Simplify 0 into 0
6.118 * [backup-simplify]: Simplify 1 into 1
6.119 * [backup-simplify]: Simplify (/ 1 1) into 1
6.119 * [taylor]: Taking taylor expansion of 0.5 in x
6.119 * [backup-simplify]: Simplify 0.5 into 0.5
6.119 * [backup-simplify]: Simplify (+ 1 0) into 1
6.119 * [backup-simplify]: Simplify 1 into 1
6.119 * [backup-simplify]: Simplify (+ (* x 0) (+ (* 0 1) (* 0 0))) into 0
6.119 * [backup-simplify]: Simplify (- (+ (* (/ 1 x) (/ 0 x)))) into 0
6.119 * [backup-simplify]: Simplify (* 1.0 (/ 1 x)) into (/ 1.0 x)
6.120 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
6.120 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
6.120 * [backup-simplify]: Simplify (+ (/ 1.0 x) 0) into (* 1.0 (/ 1 x))
6.120 * [backup-simplify]: Simplify (- (* 1.0 (/ 1 x))) into (- (* 1.0 (/ 1 x)))
6.121 * [backup-simplify]: Simplify (+ 0 (- (* 1.0 (/ 1 x)))) into (- (* 1.0 (/ 1 x)))
6.121 * [taylor]: Taking taylor expansion of (- (* 1.0 (/ 1 x))) in x
6.121 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
6.121 * [taylor]: Taking taylor expansion of 1.0 in x
6.121 * [backup-simplify]: Simplify 1.0 into 1.0
6.121 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.121 * [taylor]: Taking taylor expansion of x in x
6.121 * [backup-simplify]: Simplify 0 into 0
6.121 * [backup-simplify]: Simplify 1 into 1
6.121 * [backup-simplify]: Simplify (/ 1 1) into 1
6.121 * [backup-simplify]: Simplify (* 1.0 1) into 1.0
6.121 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
6.122 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
6.122 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
6.122 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
6.123 * [backup-simplify]: Simplify (+ 0 (- 0.5)) into (- 0.5)
6.123 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
6.124 * [backup-simplify]: Simplify (+ (* (- 0.5) (* 1 (/ 1 (/ 1 y)))) (+ (* (- 1.0) (* (/ 1 (/ 1 x)) 1)) (* 1 (* (/ 1 (/ 1 x)) (/ 1 (/ 1 y)))))) into (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
6.124 * [backup-simplify]: Simplify (- (* (/ 1 (- y)) (- (/ 1 (- x)) 0.5)) (* (/ 1 (- x)) 1.0)) into (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))))
6.124 * [approximate]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in (y x) around 0
6.124 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
6.124 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
6.124 * [taylor]: Taking taylor expansion of (* x y) in x
6.124 * [taylor]: Taking taylor expansion of x in x
6.124 * [backup-simplify]: Simplify 0 into 0
6.124 * [backup-simplify]: Simplify 1 into 1
6.124 * [taylor]: Taking taylor expansion of y in x
6.124 * [backup-simplify]: Simplify y into y
6.124 * [backup-simplify]: Simplify (* 0 y) into 0
6.124 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
6.124 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
6.124 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in x
6.124 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
6.124 * [taylor]: Taking taylor expansion of 1.0 in x
6.124 * [backup-simplify]: Simplify 1.0 into 1.0
6.125 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.125 * [taylor]: Taking taylor expansion of x in x
6.125 * [backup-simplify]: Simplify 0 into 0
6.125 * [backup-simplify]: Simplify 1 into 1
6.125 * [backup-simplify]: Simplify (/ 1 1) into 1
6.125 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
6.125 * [taylor]: Taking taylor expansion of 0.5 in x
6.125 * [backup-simplify]: Simplify 0.5 into 0.5
6.125 * [taylor]: Taking taylor expansion of (/ 1 y) in x
6.125 * [taylor]: Taking taylor expansion of y in x
6.125 * [backup-simplify]: Simplify y into y
6.125 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
6.125 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
6.125 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
6.125 * [taylor]: Taking taylor expansion of (* x y) in y
6.125 * [taylor]: Taking taylor expansion of x in y
6.125 * [backup-simplify]: Simplify x into x
6.125 * [taylor]: Taking taylor expansion of y in y
6.125 * [backup-simplify]: Simplify 0 into 0
6.125 * [backup-simplify]: Simplify 1 into 1
6.125 * [backup-simplify]: Simplify (* x 0) into 0
6.125 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
6.125 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.125 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in y
6.125 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
6.125 * [taylor]: Taking taylor expansion of 1.0 in y
6.125 * [backup-simplify]: Simplify 1.0 into 1.0
6.125 * [taylor]: Taking taylor expansion of (/ 1 x) in y
6.126 * [taylor]: Taking taylor expansion of x in y
6.126 * [backup-simplify]: Simplify x into x
6.126 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.126 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
6.126 * [taylor]: Taking taylor expansion of 0.5 in y
6.126 * [backup-simplify]: Simplify 0.5 into 0.5
6.126 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.126 * [taylor]: Taking taylor expansion of y in y
6.126 * [backup-simplify]: Simplify 0 into 0
6.126 * [backup-simplify]: Simplify 1 into 1
6.126 * [backup-simplify]: Simplify (/ 1 1) into 1
6.126 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
6.126 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
6.126 * [taylor]: Taking taylor expansion of (* x y) in y
6.126 * [taylor]: Taking taylor expansion of x in y
6.126 * [backup-simplify]: Simplify x into x
6.126 * [taylor]: Taking taylor expansion of y in y
6.126 * [backup-simplify]: Simplify 0 into 0
6.126 * [backup-simplify]: Simplify 1 into 1
6.126 * [backup-simplify]: Simplify (* x 0) into 0
6.126 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
6.126 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.126 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in y
6.126 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
6.126 * [taylor]: Taking taylor expansion of 1.0 in y
6.126 * [backup-simplify]: Simplify 1.0 into 1.0
6.126 * [taylor]: Taking taylor expansion of (/ 1 x) in y
6.127 * [taylor]: Taking taylor expansion of x in y
6.127 * [backup-simplify]: Simplify x into x
6.127 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.127 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
6.127 * [taylor]: Taking taylor expansion of 0.5 in y
6.127 * [backup-simplify]: Simplify 0.5 into 0.5
6.127 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.127 * [taylor]: Taking taylor expansion of y in y
6.127 * [backup-simplify]: Simplify 0 into 0
6.127 * [backup-simplify]: Simplify 1 into 1
6.127 * [backup-simplify]: Simplify (/ 1 1) into 1
6.127 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
6.127 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5
6.128 * [backup-simplify]: Simplify (+ (/ 1 x) 0.5) into (+ (/ 1 x) 0.5)
6.128 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 0.5) in x
6.128 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.128 * [taylor]: Taking taylor expansion of x in x
6.128 * [backup-simplify]: Simplify 0 into 0
6.128 * [backup-simplify]: Simplify 1 into 1
6.128 * [backup-simplify]: Simplify (/ 1 1) into 1
6.128 * [taylor]: Taking taylor expansion of 0.5 in x
6.128 * [backup-simplify]: Simplify 0.5 into 0.5
6.128 * [backup-simplify]: Simplify (+ 1 0) into 1
6.128 * [backup-simplify]: Simplify 1 into 1
6.129 * [backup-simplify]: Simplify (+ (* x 0) (+ (* 0 1) (* 0 0))) into 0
6.129 * [backup-simplify]: Simplify (- (+ (* (/ 1 x) (/ 0 x)))) into 0
6.129 * [backup-simplify]: Simplify (* 1.0 (/ 1 x)) into (/ 1.0 x)
6.129 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
6.130 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
6.130 * [backup-simplify]: Simplify (+ (/ 1.0 x) 0) into (* 1.0 (/ 1 x))
6.130 * [backup-simplify]: Simplify (+ 0 (* 1.0 (/ 1 x))) into (* 1.0 (/ 1 x))
6.130 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
6.130 * [taylor]: Taking taylor expansion of 1.0 in x
6.130 * [backup-simplify]: Simplify 1.0 into 1.0
6.130 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.130 * [taylor]: Taking taylor expansion of x in x
6.130 * [backup-simplify]: Simplify 0 into 0
6.130 * [backup-simplify]: Simplify 1 into 1
6.130 * [backup-simplify]: Simplify (/ 1 1) into 1
6.130 * [backup-simplify]: Simplify (* 1.0 1) into 1.0
6.130 * [backup-simplify]: Simplify 1.0 into 1.0
6.131 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
6.131 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5
6.131 * [backup-simplify]: Simplify 0.5 into 0.5
6.131 * [backup-simplify]: Simplify (+ (* 0.5 (* 1 (/ 1 (/ 1 (- y))))) (+ (* 1.0 (* (/ 1 (/ 1 (- x))) 1)) (* 1 (* (/ 1 (/ 1 (- x))) (/ 1 (/ 1 (- y))))))) into (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
6.131 * * * [progress]: simplifying candidates
6.132 * [simplify]: Simplifying:
  (/ (exp (* y (- x 0.5))) (exp (* x 1.0)))
  (log (- (* y (- x 0.5)) (* x 1.0)))
  (exp (- (* y (- x 0.5)) (* x 1.0)))
  (* (cbrt (- (* y (- x 0.5)) (* x 1.0))) (cbrt (- (* y (- x 0.5)) (* x 1.0))))
  (cbrt (- (* y (- x 0.5)) (* x 1.0)))
  (* (* (- (* y (- x 0.5)) (* x 1.0)) (- (* y (- x 0.5)) (* x 1.0))) (- (* y (- x 0.5)) (* x 1.0)))
  (sqrt (- (* y (- x 0.5)) (* x 1.0)))
  (sqrt (- (* y (- x 0.5)) (* x 1.0)))
  (- (pow (* y (- x 0.5)) 3) (pow (* x 1.0) 3))
  (+ (* (* y (- x 0.5)) (* y (- x 0.5))) (+ (* (* x 1.0) (* x 1.0)) (* (* y (- x 0.5)) (* x 1.0))))
  (- (* x 1.0))
  (- (* (* y (- x 0.5)) (* y (- x 0.5))) (* (* x 1.0) (* x 1.0)))
  (+ (* y (- x 0.5)) (* x 1.0))
  (- (* y (- 0.5)) (* x 1.0))
  (- (* y (- 0.5)) (* x 1.0))
  (- (* (- 0.5) y) (* x 1.0))
  (- (* (- 0.5) y) (* x 1.0))
  (- (* x 1.0))
  (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
  (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
  (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
6.132 * * [simplify]: iteration 0: 40 enodes
6.144 * * [simplify]: iteration 1: 111 enodes
6.168 * * [simplify]: iteration 2: 312 enodes
6.282 * * [simplify]: iteration 3: 1124 enodes
7.281 * * [simplify]: iteration 4: 4597 enodes
8.299 * * [simplify]: iteration complete: 5007 enodes
8.300 * * [simplify]: Extracting #0: cost 13 inf + 0
8.300 * * [simplify]: Extracting #1: cost 254 inf + 0
8.302 * * [simplify]: Extracting #2: cost 734 inf + 168
8.308 * * [simplify]: Extracting #3: cost 1088 inf + 12351
8.343 * * [simplify]: Extracting #4: cost 568 inf + 135685
8.402 * * [simplify]: Extracting #5: cost 102 inf + 325168
8.476 * * [simplify]: Extracting #6: cost 6 inf + 390261
8.548 * * [simplify]: Extracting #7: cost 0 inf + 392672
8.630 * [simplify]: Simplified to:
  (exp (- (* (- y 1.0) x) (* y 0.5)))
  (log (- (* (- y 1.0) x) (* y 0.5)))
  (exp (- (* (- y 1.0) x) (* y 0.5)))
  (* (cbrt (- (* (- y 1.0) x) (* y 0.5))) (cbrt (- (* (- y 1.0) x) (* y 0.5))))
  (cbrt (- (* (- y 1.0) x) (* y 0.5)))
  (* (- (* (- y 1.0) x) (* y 0.5)) (* (- (* (- y 1.0) x) (* y 0.5)) (- (* (- y 1.0) x) (* y 0.5))))
  (sqrt (- (* (- y 1.0) x) (* y 0.5)))
  (sqrt (- (* (- y 1.0) x) (* y 0.5)))
  (- (* (* (- x 0.5) y) (* (* (- x 0.5) y) (* (- x 0.5) y))) (* (* 1.0 x) (* (* 1.0 x) (* 1.0 x))))
  (+ (+ (* (* 1.0 x) (* (- x 0.5) y)) (* (* (- x 0.5) y) (* (- x 0.5) y))) (* (* 1.0 x) (* 1.0 x)))
  (* (- x) 1.0)
  (- (* (* (- x 0.5) y) (* (- x 0.5) y)) (* (* 1.0 x) (* 1.0 x)))
  (- (* x (+ 1.0 y)) (* y 0.5))
  (- (* y (- 0.5)) (* 1.0 x))
  (- (* y (- 0.5)) (* 1.0 x))
  (- (* y (- 0.5)) (* 1.0 x))
  (- (* y (- 0.5)) (* 1.0 x))
  (* (- x) 1.0)
  (- (* (- y 1.0) x) (* y 0.5))
  (- (* (- y 1.0) x) (* y 0.5))
  (- (* (- y 1.0) x) (* y 0.5))
8.631 * * * [progress]: adding candidates to table
8.704 * [progress]: [Phase 3 of 3] Extracting.
8.704 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673))>)
8.705 * * * [regime-changes]: Trying 4 branch expressions: ((- (* x (- y 1.0)) (* y 0.5)) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673) y x)
8.705 * * * * [regimes]: Trying to branch on (- (* x (- y 1.0)) (* y 0.5)) from (#<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673))>)
8.738 * * * * [regimes]: Trying to branch on (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673) from (#<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673))>)
8.766 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673))>)
8.792 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673))>)
8.825 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
8.825 * [simplify]: Simplifying:
  (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673)
8.825 * * [simplify]: iteration 0: 10 enodes
8.826 * * [simplify]: iteration 1: 13 enodes
8.826 * * [simplify]: iteration complete: 13 enodes
8.826 * * [simplify]: Extracting #0: cost 1 inf + 0
8.827 * * [simplify]: Extracting #1: cost 3 inf + 0
8.827 * * [simplify]: Extracting #2: cost 4 inf + 1
8.827 * * [simplify]: Extracting #3: cost 8 inf + 1
8.827 * * [simplify]: Extracting #4: cost 5 inf + 46
8.827 * * [simplify]: Extracting #5: cost 0 inf + 541
8.827 * [simplify]: Simplified to:
  (+ (- (* (- y 1.0) x) (* 0.5 y)) 0.918938533204673)
10.476 * [regime-testing]: Baseline error score: 0.007375921990248781
10.490 * [regime-testing]: Oracle error score: 0.0011251406425803225
10.515 * [regime-testing]: End program error score: 0.007375921990248781