21.848 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.030 * * * [progress]: [2/2] Setting up program.
0.035 * [progress]: [Phase 2 of 3] Improving.
0.036 * [simplify]: Simplifying:
  (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673)
0.036 * * [simplify]: iteration 0: 10 enodes
0.039 * * [simplify]: iteration 1: 19 enodes
0.046 * * [simplify]: iteration 2: 42 enodes
0.068 * * [simplify]: iteration 3: 85 enodes
0.093 * * [simplify]: iteration 4: 183 enodes
0.156 * * [simplify]: iteration 5: 361 enodes
0.313 * * [simplify]: iteration 6: 645 enodes
0.474 * * [simplify]: iteration 7: 911 enodes
0.627 * * [simplify]: iteration 8: 1180 enodes
0.883 * * [simplify]: iteration 9: 1691 enodes
1.221 * * [simplify]: iteration 10: 2382 enodes
1.710 * * [simplify]: iteration 11: 2859 enodes
2.126 * * [simplify]: iteration 12: 3243 enodes
2.401 * * [simplify]: iteration 13: 3552 enodes
2.616 * * [simplify]: iteration 14: 3857 enodes
2.819 * * [simplify]: iteration 15: 4144 enodes
3.054 * * [simplify]: iteration 16: 4453 enodes
3.233 * * [simplify]: iteration 17: 4757 enodes
3.373 * * [simplify]: iteration complete: 5000 enodes
3.373 * * [simplify]: Extracting #0: cost 1 inf + 0
3.373 * * [simplify]: Extracting #1: cost 31 inf + 0
3.374 * * [simplify]: Extracting #2: cost 96 inf + 42
3.374 * * [simplify]: Extracting #3: cost 100 inf + 1489
3.378 * * [simplify]: Extracting #4: cost 13 inf + 10906
3.382 * * [simplify]: Extracting #5: cost 0 inf + 12102
3.389 * [simplify]: Simplified to:
  (- 0.918938533204673 (- (* x 1.0) (* y (- x 0.5))))
3.390 * * [progress]: iteration 1 / 4
3.390 * * * [progress]: picking best candidate
3.396 * * * * [pick]: Picked  #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>
3.397 * * * [progress]: localizing error
3.417 * * * [progress]: generating rewritten candidates
3.417 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
3.429 * * * [progress]: generating series expansions
3.429 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
3.429 * [backup-simplify]: Simplify (- (* x (- y 1.0)) (* y 0.5)) into (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
3.429 * [approximate]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in (x y) around 0
3.429 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in y
3.429 * [taylor]: Taking taylor expansion of (* x y) in y
3.429 * [taylor]: Taking taylor expansion of x in y
3.429 * [backup-simplify]: Simplify x into x
3.429 * [taylor]: Taking taylor expansion of y in y
3.430 * [backup-simplify]: Simplify 0 into 0
3.430 * [backup-simplify]: Simplify 1 into 1
3.430 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in y
3.430 * [taylor]: Taking taylor expansion of (* 1.0 x) in y
3.430 * [taylor]: Taking taylor expansion of 1.0 in y
3.430 * [backup-simplify]: Simplify 1.0 into 1.0
3.430 * [taylor]: Taking taylor expansion of x in y
3.430 * [backup-simplify]: Simplify x into x
3.430 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
3.430 * [taylor]: Taking taylor expansion of 0.5 in y
3.430 * [backup-simplify]: Simplify 0.5 into 0.5
3.430 * [taylor]: Taking taylor expansion of y in y
3.430 * [backup-simplify]: Simplify 0 into 0
3.430 * [backup-simplify]: Simplify 1 into 1
3.430 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in x
3.430 * [taylor]: Taking taylor expansion of (* x y) in x
3.430 * [taylor]: Taking taylor expansion of x in x
3.430 * [backup-simplify]: Simplify 0 into 0
3.430 * [backup-simplify]: Simplify 1 into 1
3.430 * [taylor]: Taking taylor expansion of y in x
3.430 * [backup-simplify]: Simplify y into y
3.430 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in x
3.430 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
3.430 * [taylor]: Taking taylor expansion of 1.0 in x
3.430 * [backup-simplify]: Simplify 1.0 into 1.0
3.430 * [taylor]: Taking taylor expansion of x in x
3.430 * [backup-simplify]: Simplify 0 into 0
3.430 * [backup-simplify]: Simplify 1 into 1
3.430 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
3.430 * [taylor]: Taking taylor expansion of 0.5 in x
3.430 * [backup-simplify]: Simplify 0.5 into 0.5
3.430 * [taylor]: Taking taylor expansion of y in x
3.430 * [backup-simplify]: Simplify y into y
3.430 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in x
3.430 * [taylor]: Taking taylor expansion of (* x y) in x
3.430 * [taylor]: Taking taylor expansion of x in x
3.430 * [backup-simplify]: Simplify 0 into 0
3.430 * [backup-simplify]: Simplify 1 into 1
3.430 * [taylor]: Taking taylor expansion of y in x
3.430 * [backup-simplify]: Simplify y into y
3.430 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in x
3.430 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
3.430 * [taylor]: Taking taylor expansion of 1.0 in x
3.430 * [backup-simplify]: Simplify 1.0 into 1.0
3.430 * [taylor]: Taking taylor expansion of x in x
3.430 * [backup-simplify]: Simplify 0 into 0
3.430 * [backup-simplify]: Simplify 1 into 1
3.430 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
3.430 * [taylor]: Taking taylor expansion of 0.5 in x
3.430 * [backup-simplify]: Simplify 0.5 into 0.5
3.430 * [taylor]: Taking taylor expansion of y in x
3.430 * [backup-simplify]: Simplify y into y
3.430 * [backup-simplify]: Simplify (* 0 y) into 0
3.431 * [backup-simplify]: Simplify (* 1.0 0) into 0
3.431 * [backup-simplify]: Simplify (* 0.5 y) into (* 0.5 y)
3.431 * [backup-simplify]: Simplify (+ 0 (* 0.5 y)) into (* 0.5 y)
3.431 * [backup-simplify]: Simplify (- (* 0.5 y)) into (- (* 0.5 y))
3.431 * [backup-simplify]: Simplify (+ 0 (- (* 0.5 y))) into (- (* 0.5 y))
3.431 * [taylor]: Taking taylor expansion of (- (* 0.5 y)) in y
3.431 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
3.431 * [taylor]: Taking taylor expansion of 0.5 in y
3.431 * [backup-simplify]: Simplify 0.5 into 0.5
3.431 * [taylor]: Taking taylor expansion of y in y
3.431 * [backup-simplify]: Simplify 0 into 0
3.431 * [backup-simplify]: Simplify 1 into 1
3.431 * [backup-simplify]: Simplify (* 0.5 0) into 0
3.432 * [backup-simplify]: Simplify (- 0) into 0
3.432 * [backup-simplify]: Simplify 0 into 0
3.432 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
3.433 * [backup-simplify]: Simplify (+ (* 1.0 1) (* 0 0)) into 1.0
3.433 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 y)) into 0
3.433 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
3.434 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
3.434 * [backup-simplify]: Simplify (+ y (- 1.0)) into (- y 1.0)
3.434 * [taylor]: Taking taylor expansion of (- y 1.0) in y
3.434 * [taylor]: Taking taylor expansion of y in y
3.434 * [backup-simplify]: Simplify 0 into 0
3.434 * [backup-simplify]: Simplify 1 into 1
3.434 * [taylor]: Taking taylor expansion of 1.0 in y
3.434 * [backup-simplify]: Simplify 1.0 into 1.0
3.434 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
3.435 * [backup-simplify]: Simplify (+ 0 (- 1.0)) into (- 1.0)
3.435 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
3.436 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
3.436 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
3.436 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
3.437 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
3.437 * [backup-simplify]: Simplify (+ (* 1.0 0) (+ (* 0 1) (* 0 0))) into 0
3.438 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 y))) into 0
3.438 * [backup-simplify]: Simplify (+ 0 0) into 0
3.438 * [backup-simplify]: Simplify (- 0) into 0
3.439 * [backup-simplify]: Simplify (+ 0 0) into 0
3.439 * [taylor]: Taking taylor expansion of 0 in y
3.439 * [backup-simplify]: Simplify 0 into 0
3.439 * [backup-simplify]: Simplify 0 into 0
3.439 * [backup-simplify]: Simplify (- 0) into 0
3.439 * [backup-simplify]: Simplify (+ 1 0) into 1
3.439 * [backup-simplify]: Simplify 1 into 1
3.440 * [backup-simplify]: Simplify (+ (* 1 (* y x)) (+ (* (- 0.5) (* y 1)) (* (- 1.0) (* 1 x)))) into (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
3.440 * [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))))
3.440 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in (x y) around 0
3.440 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
3.440 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
3.440 * [taylor]: Taking taylor expansion of (* x y) in y
3.440 * [taylor]: Taking taylor expansion of x in y
3.440 * [backup-simplify]: Simplify x into x
3.440 * [taylor]: Taking taylor expansion of y in y
3.440 * [backup-simplify]: Simplify 0 into 0
3.440 * [backup-simplify]: Simplify 1 into 1
3.440 * [backup-simplify]: Simplify (* x 0) into 0
3.440 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
3.441 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.441 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in y
3.441 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
3.441 * [taylor]: Taking taylor expansion of 1.0 in y
3.441 * [backup-simplify]: Simplify 1.0 into 1.0
3.441 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.441 * [taylor]: Taking taylor expansion of x in y
3.441 * [backup-simplify]: Simplify x into x
3.441 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.441 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
3.441 * [taylor]: Taking taylor expansion of 0.5 in y
3.441 * [backup-simplify]: Simplify 0.5 into 0.5
3.441 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.441 * [taylor]: Taking taylor expansion of y in y
3.441 * [backup-simplify]: Simplify 0 into 0
3.441 * [backup-simplify]: Simplify 1 into 1
3.441 * [backup-simplify]: Simplify (/ 1 1) into 1
3.441 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
3.441 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
3.441 * [taylor]: Taking taylor expansion of (* x y) in x
3.441 * [taylor]: Taking taylor expansion of x in x
3.441 * [backup-simplify]: Simplify 0 into 0
3.441 * [backup-simplify]: Simplify 1 into 1
3.441 * [taylor]: Taking taylor expansion of y in x
3.441 * [backup-simplify]: Simplify y into y
3.441 * [backup-simplify]: Simplify (* 0 y) into 0
3.441 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
3.442 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.442 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in x
3.442 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
3.442 * [taylor]: Taking taylor expansion of 1.0 in x
3.442 * [backup-simplify]: Simplify 1.0 into 1.0
3.442 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.442 * [taylor]: Taking taylor expansion of x in x
3.442 * [backup-simplify]: Simplify 0 into 0
3.442 * [backup-simplify]: Simplify 1 into 1
3.442 * [backup-simplify]: Simplify (/ 1 1) into 1
3.442 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
3.442 * [taylor]: Taking taylor expansion of 0.5 in x
3.442 * [backup-simplify]: Simplify 0.5 into 0.5
3.442 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.442 * [taylor]: Taking taylor expansion of y in x
3.442 * [backup-simplify]: Simplify y into y
3.442 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.442 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
3.442 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
3.442 * [taylor]: Taking taylor expansion of (* x y) in x
3.442 * [taylor]: Taking taylor expansion of x in x
3.442 * [backup-simplify]: Simplify 0 into 0
3.442 * [backup-simplify]: Simplify 1 into 1
3.442 * [taylor]: Taking taylor expansion of y in x
3.442 * [backup-simplify]: Simplify y into y
3.442 * [backup-simplify]: Simplify (* 0 y) into 0
3.442 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
3.442 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.443 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in x
3.443 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
3.443 * [taylor]: Taking taylor expansion of 1.0 in x
3.443 * [backup-simplify]: Simplify 1.0 into 1.0
3.443 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.443 * [taylor]: Taking taylor expansion of x in x
3.443 * [backup-simplify]: Simplify 0 into 0
3.443 * [backup-simplify]: Simplify 1 into 1
3.443 * [backup-simplify]: Simplify (/ 1 1) into 1
3.443 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
3.443 * [taylor]: Taking taylor expansion of 0.5 in x
3.443 * [backup-simplify]: Simplify 0.5 into 0.5
3.443 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.443 * [taylor]: Taking taylor expansion of y in x
3.443 * [backup-simplify]: Simplify y into y
3.443 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.443 * [backup-simplify]: Simplify (* 1.0 1) into 1.0
3.444 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
3.444 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
3.444 * [backup-simplify]: Simplify (+ (/ 1 y) (- 1.0)) into (- (/ 1 y) 1.0)
3.444 * [taylor]: Taking taylor expansion of (- (/ 1 y) 1.0) in y
3.444 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.444 * [taylor]: Taking taylor expansion of y in y
3.444 * [backup-simplify]: Simplify 0 into 0
3.444 * [backup-simplify]: Simplify 1 into 1
3.444 * [backup-simplify]: Simplify (/ 1 1) into 1
3.444 * [taylor]: Taking taylor expansion of 1.0 in y
3.444 * [backup-simplify]: Simplify 1.0 into 1.0
3.445 * [backup-simplify]: Simplify (+ 1 0) into 1
3.445 * [backup-simplify]: Simplify 1 into 1
3.445 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
3.445 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
3.446 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.446 * [backup-simplify]: Simplify (+ (* 1.0 0) (* 0 1)) into 0
3.446 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
3.446 * [backup-simplify]: Simplify (+ 0 (/ 0.5 y)) into (* 0.5 (/ 1 y))
3.446 * [backup-simplify]: Simplify (- (* 0.5 (/ 1 y))) into (- (* 0.5 (/ 1 y)))
3.446 * [backup-simplify]: Simplify (+ 0 (- (* 0.5 (/ 1 y)))) into (- (* 0.5 (/ 1 y)))
3.446 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
3.447 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
3.447 * [taylor]: Taking taylor expansion of 0.5 in y
3.447 * [backup-simplify]: Simplify 0.5 into 0.5
3.447 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.447 * [taylor]: Taking taylor expansion of y in y
3.447 * [backup-simplify]: Simplify 0 into 0
3.447 * [backup-simplify]: Simplify 1 into 1
3.447 * [backup-simplify]: Simplify (/ 1 1) into 1
3.447 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
3.447 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
3.448 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
3.448 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.448 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
3.449 * [backup-simplify]: Simplify (+ 0 (- 1.0)) into (- 1.0)
3.449 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
3.450 * [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)))
3.450 * [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))))
3.450 * [approximate]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in (x y) around 0
3.450 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
3.450 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
3.450 * [taylor]: Taking taylor expansion of (* x y) in y
3.450 * [taylor]: Taking taylor expansion of x in y
3.450 * [backup-simplify]: Simplify x into x
3.450 * [taylor]: Taking taylor expansion of y in y
3.450 * [backup-simplify]: Simplify 0 into 0
3.451 * [backup-simplify]: Simplify 1 into 1
3.451 * [backup-simplify]: Simplify (* x 0) into 0
3.451 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
3.451 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.451 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in y
3.451 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
3.451 * [taylor]: Taking taylor expansion of 1.0 in y
3.451 * [backup-simplify]: Simplify 1.0 into 1.0
3.451 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.451 * [taylor]: Taking taylor expansion of x in y
3.451 * [backup-simplify]: Simplify x into x
3.451 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.451 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
3.451 * [taylor]: Taking taylor expansion of 0.5 in y
3.451 * [backup-simplify]: Simplify 0.5 into 0.5
3.451 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.451 * [taylor]: Taking taylor expansion of y in y
3.451 * [backup-simplify]: Simplify 0 into 0
3.451 * [backup-simplify]: Simplify 1 into 1
3.451 * [backup-simplify]: Simplify (/ 1 1) into 1
3.451 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
3.451 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
3.451 * [taylor]: Taking taylor expansion of (* x y) in x
3.451 * [taylor]: Taking taylor expansion of x in x
3.451 * [backup-simplify]: Simplify 0 into 0
3.451 * [backup-simplify]: Simplify 1 into 1
3.452 * [taylor]: Taking taylor expansion of y in x
3.452 * [backup-simplify]: Simplify y into y
3.452 * [backup-simplify]: Simplify (* 0 y) into 0
3.452 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
3.452 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.452 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in x
3.452 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
3.452 * [taylor]: Taking taylor expansion of 1.0 in x
3.452 * [backup-simplify]: Simplify 1.0 into 1.0
3.452 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.452 * [taylor]: Taking taylor expansion of x in x
3.452 * [backup-simplify]: Simplify 0 into 0
3.452 * [backup-simplify]: Simplify 1 into 1
3.452 * [backup-simplify]: Simplify (/ 1 1) into 1
3.452 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
3.452 * [taylor]: Taking taylor expansion of 0.5 in x
3.452 * [backup-simplify]: Simplify 0.5 into 0.5
3.452 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.452 * [taylor]: Taking taylor expansion of y in x
3.452 * [backup-simplify]: Simplify y into y
3.452 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.452 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
3.452 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
3.452 * [taylor]: Taking taylor expansion of (* x y) in x
3.452 * [taylor]: Taking taylor expansion of x in x
3.452 * [backup-simplify]: Simplify 0 into 0
3.453 * [backup-simplify]: Simplify 1 into 1
3.453 * [taylor]: Taking taylor expansion of y in x
3.453 * [backup-simplify]: Simplify y into y
3.453 * [backup-simplify]: Simplify (* 0 y) into 0
3.453 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
3.453 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.453 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in x
3.453 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
3.453 * [taylor]: Taking taylor expansion of 1.0 in x
3.453 * [backup-simplify]: Simplify 1.0 into 1.0
3.453 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.453 * [taylor]: Taking taylor expansion of x in x
3.453 * [backup-simplify]: Simplify 0 into 0
3.453 * [backup-simplify]: Simplify 1 into 1
3.453 * [backup-simplify]: Simplify (/ 1 1) into 1
3.453 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
3.453 * [taylor]: Taking taylor expansion of 0.5 in x
3.453 * [backup-simplify]: Simplify 0.5 into 0.5
3.453 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.453 * [taylor]: Taking taylor expansion of y in x
3.453 * [backup-simplify]: Simplify y into y
3.453 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.454 * [backup-simplify]: Simplify (* 1.0 1) into 1.0
3.454 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
3.454 * [backup-simplify]: Simplify (+ (/ 1 y) 1.0) into (+ 1.0 (/ 1 y))
3.454 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 y)) in y
3.454 * [taylor]: Taking taylor expansion of 1.0 in y
3.454 * [backup-simplify]: Simplify 1.0 into 1.0
3.454 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.454 * [taylor]: Taking taylor expansion of y in y
3.454 * [backup-simplify]: Simplify 0 into 0
3.454 * [backup-simplify]: Simplify 1 into 1
3.454 * [backup-simplify]: Simplify (/ 1 1) into 1
3.455 * [backup-simplify]: Simplify (+ 0 1) into 1
3.455 * [backup-simplify]: Simplify 1 into 1
3.455 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
3.455 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
3.456 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.456 * [backup-simplify]: Simplify (+ (* 1.0 0) (* 0 1)) into 0
3.456 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
3.456 * [backup-simplify]: Simplify (+ 0 (/ 0.5 y)) into (* 0.5 (/ 1 y))
3.456 * [backup-simplify]: Simplify (+ 0 (* 0.5 (/ 1 y))) into (* 0.5 (/ 1 y))
3.456 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
3.456 * [taylor]: Taking taylor expansion of 0.5 in y
3.456 * [backup-simplify]: Simplify 0.5 into 0.5
3.456 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.456 * [taylor]: Taking taylor expansion of y in y
3.456 * [backup-simplify]: Simplify 0 into 0
3.457 * [backup-simplify]: Simplify 1 into 1
3.457 * [backup-simplify]: Simplify (/ 1 1) into 1
3.457 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
3.457 * [backup-simplify]: Simplify 0.5 into 0.5
3.457 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.458 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
3.458 * [backup-simplify]: Simplify 1.0 into 1.0
3.458 * [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)))
3.458 * * * [progress]: simplifying candidates
3.458 * [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)))
3.459 * * [simplify]: iteration 0: 40 enodes
3.468 * * [simplify]: iteration 1: 110 enodes
3.496 * * [simplify]: iteration 2: 306 enodes
3.643 * * [simplify]: iteration 3: 1139 enodes
4.753 * * [simplify]: iteration 4: 4857 enodes
5.912 * * [simplify]: iteration complete: 5017 enodes
5.913 * * [simplify]: Extracting #0: cost 13 inf + 0
5.913 * * [simplify]: Extracting #1: cost 238 inf + 0
5.916 * * [simplify]: Extracting #2: cost 820 inf + 533
5.929 * * [simplify]: Extracting #3: cost 1059 inf + 14289
5.966 * * [simplify]: Extracting #4: cost 467 inf + 158874
6.060 * * [simplify]: Extracting #5: cost 43 inf + 317694
6.141 * * [simplify]: Extracting #6: cost 0 inf + 340433
6.223 * [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))
6.224 * * * [progress]: adding candidates to table
6.316 * * [progress]: iteration 2 / 4
6.316 * * * [progress]: picking best candidate
6.322 * * * * [pick]: Picked  #<alt (λ (x y) (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673))>
6.322 * * * [progress]: localizing error
6.339 * * * [progress]: generating rewritten candidates
6.339 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
6.351 * * * [progress]: generating series expansions
6.351 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
6.352 * [backup-simplify]: Simplify (- (* y (- x 0.5)) (* x 1.0)) into (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
6.352 * [approximate]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in (y x) around 0
6.352 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in x
6.352 * [taylor]: Taking taylor expansion of (* x y) in x
6.352 * [taylor]: Taking taylor expansion of x in x
6.352 * [backup-simplify]: Simplify 0 into 0
6.352 * [backup-simplify]: Simplify 1 into 1
6.352 * [taylor]: Taking taylor expansion of y in x
6.352 * [backup-simplify]: Simplify y into y
6.352 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in x
6.352 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
6.352 * [taylor]: Taking taylor expansion of 1.0 in x
6.352 * [backup-simplify]: Simplify 1.0 into 1.0
6.352 * [taylor]: Taking taylor expansion of x in x
6.352 * [backup-simplify]: Simplify 0 into 0
6.352 * [backup-simplify]: Simplify 1 into 1
6.352 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
6.352 * [taylor]: Taking taylor expansion of 0.5 in x
6.352 * [backup-simplify]: Simplify 0.5 into 0.5
6.352 * [taylor]: Taking taylor expansion of y in x
6.352 * [backup-simplify]: Simplify y into y
6.352 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in y
6.352 * [taylor]: Taking taylor expansion of (* x y) in y
6.352 * [taylor]: Taking taylor expansion of x in y
6.352 * [backup-simplify]: Simplify x into x
6.352 * [taylor]: Taking taylor expansion of y in y
6.352 * [backup-simplify]: Simplify 0 into 0
6.352 * [backup-simplify]: Simplify 1 into 1
6.352 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in y
6.352 * [taylor]: Taking taylor expansion of (* 1.0 x) in y
6.352 * [taylor]: Taking taylor expansion of 1.0 in y
6.352 * [backup-simplify]: Simplify 1.0 into 1.0
6.352 * [taylor]: Taking taylor expansion of x in y
6.352 * [backup-simplify]: Simplify x into x
6.352 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
6.352 * [taylor]: Taking taylor expansion of 0.5 in y
6.352 * [backup-simplify]: Simplify 0.5 into 0.5
6.352 * [taylor]: Taking taylor expansion of y in y
6.352 * [backup-simplify]: Simplify 0 into 0
6.352 * [backup-simplify]: Simplify 1 into 1
6.352 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in y
6.352 * [taylor]: Taking taylor expansion of (* x y) in y
6.352 * [taylor]: Taking taylor expansion of x in y
6.352 * [backup-simplify]: Simplify x into x
6.352 * [taylor]: Taking taylor expansion of y in y
6.352 * [backup-simplify]: Simplify 0 into 0
6.352 * [backup-simplify]: Simplify 1 into 1
6.352 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in y
6.352 * [taylor]: Taking taylor expansion of (* 1.0 x) in y
6.352 * [taylor]: Taking taylor expansion of 1.0 in y
6.352 * [backup-simplify]: Simplify 1.0 into 1.0
6.352 * [taylor]: Taking taylor expansion of x in y
6.352 * [backup-simplify]: Simplify x into x
6.352 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
6.352 * [taylor]: Taking taylor expansion of 0.5 in y
6.352 * [backup-simplify]: Simplify 0.5 into 0.5
6.352 * [taylor]: Taking taylor expansion of y in y
6.352 * [backup-simplify]: Simplify 0 into 0
6.352 * [backup-simplify]: Simplify 1 into 1
6.352 * [backup-simplify]: Simplify (* x 0) into 0
6.353 * [backup-simplify]: Simplify (* 1.0 x) into (* 1.0 x)
6.353 * [backup-simplify]: Simplify (* 0.5 0) into 0
6.353 * [backup-simplify]: Simplify (+ (* 1.0 x) 0) into (* 1.0 x)
6.353 * [backup-simplify]: Simplify (- (* 1.0 x)) into (- (* 1.0 x))
6.354 * [backup-simplify]: Simplify (+ 0 (- (* 1.0 x))) into (- (* 1.0 x))
6.354 * [taylor]: Taking taylor expansion of (- (* 1.0 x)) in x
6.354 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
6.354 * [taylor]: Taking taylor expansion of 1.0 in x
6.354 * [backup-simplify]: Simplify 1.0 into 1.0
6.354 * [taylor]: Taking taylor expansion of x in x
6.354 * [backup-simplify]: Simplify 0 into 0
6.354 * [backup-simplify]: Simplify 1 into 1
6.354 * [backup-simplify]: Simplify (* 1.0 0) into 0
6.355 * [backup-simplify]: Simplify (- 0) into 0
6.355 * [backup-simplify]: Simplify 0 into 0
6.355 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
6.356 * [backup-simplify]: Simplify (+ (* 1.0 0) (* 0 x)) into 0
6.357 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
6.358 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5
6.358 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
6.359 * [backup-simplify]: Simplify (+ x (- 0.5)) into (- x 0.5)
6.359 * [taylor]: Taking taylor expansion of (- x 0.5) in x
6.359 * [taylor]: Taking taylor expansion of x in x
6.359 * [backup-simplify]: Simplify 0 into 0
6.359 * [backup-simplify]: Simplify 1 into 1
6.359 * [taylor]: Taking taylor expansion of 0.5 in x
6.359 * [backup-simplify]: Simplify 0.5 into 0.5
6.359 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
6.360 * [backup-simplify]: Simplify (+ 0 (- 0.5)) into (- 0.5)
6.361 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
6.362 * [backup-simplify]: Simplify (+ (* 1.0 1) (* 0 0)) into 1.0
6.362 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
6.362 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
6.363 * [backup-simplify]: Simplify (+ (* x 0) (+ (* 0 1) (* 0 0))) into 0
6.363 * [backup-simplify]: Simplify (+ (* 1.0 0) (+ (* 0 0) (* 0 x))) into 0
6.364 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
6.364 * [backup-simplify]: Simplify (+ 0 0) into 0
6.364 * [backup-simplify]: Simplify (- 0) into 0
6.364 * [backup-simplify]: Simplify (+ 0 0) into 0
6.364 * [taylor]: Taking taylor expansion of 0 in x
6.364 * [backup-simplify]: Simplify 0 into 0
6.364 * [backup-simplify]: Simplify 0 into 0
6.365 * [backup-simplify]: Simplify (- 0) into 0
6.365 * [backup-simplify]: Simplify (+ 1 0) into 1
6.365 * [backup-simplify]: Simplify 1 into 1
6.366 * [backup-simplify]: Simplify (+ (* 1 (* x y)) (+ (* (- 1.0) (* x 1)) (* (- 0.5) (* 1 y)))) into (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
6.366 * [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))))
6.366 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in (y x) around 0
6.366 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
6.366 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
6.366 * [taylor]: Taking taylor expansion of (* x y) in x
6.366 * [taylor]: Taking taylor expansion of x in x
6.366 * [backup-simplify]: Simplify 0 into 0
6.366 * [backup-simplify]: Simplify 1 into 1
6.366 * [taylor]: Taking taylor expansion of y in x
6.366 * [backup-simplify]: Simplify y into y
6.366 * [backup-simplify]: Simplify (* 0 y) into 0
6.366 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
6.366 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
6.366 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in x
6.366 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
6.366 * [taylor]: Taking taylor expansion of 1.0 in x
6.366 * [backup-simplify]: Simplify 1.0 into 1.0
6.367 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.367 * [taylor]: Taking taylor expansion of x in x
6.367 * [backup-simplify]: Simplify 0 into 0
6.367 * [backup-simplify]: Simplify 1 into 1
6.367 * [backup-simplify]: Simplify (/ 1 1) into 1
6.367 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
6.367 * [taylor]: Taking taylor expansion of 0.5 in x
6.367 * [backup-simplify]: Simplify 0.5 into 0.5
6.367 * [taylor]: Taking taylor expansion of (/ 1 y) in x
6.367 * [taylor]: Taking taylor expansion of y in x
6.367 * [backup-simplify]: Simplify y into y
6.367 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
6.367 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
6.367 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
6.367 * [taylor]: Taking taylor expansion of (* x y) in y
6.367 * [taylor]: Taking taylor expansion of x in y
6.367 * [backup-simplify]: Simplify x into x
6.367 * [taylor]: Taking taylor expansion of y in y
6.367 * [backup-simplify]: Simplify 0 into 0
6.367 * [backup-simplify]: Simplify 1 into 1
6.367 * [backup-simplify]: Simplify (* x 0) into 0
6.367 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
6.367 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.367 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in y
6.367 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
6.367 * [taylor]: Taking taylor expansion of 1.0 in y
6.367 * [backup-simplify]: Simplify 1.0 into 1.0
6.367 * [taylor]: Taking taylor expansion of (/ 1 x) in y
6.368 * [taylor]: Taking taylor expansion of x in y
6.368 * [backup-simplify]: Simplify x into x
6.368 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.368 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
6.368 * [taylor]: Taking taylor expansion of 0.5 in y
6.368 * [backup-simplify]: Simplify 0.5 into 0.5
6.368 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.368 * [taylor]: Taking taylor expansion of y in y
6.368 * [backup-simplify]: Simplify 0 into 0
6.368 * [backup-simplify]: Simplify 1 into 1
6.368 * [backup-simplify]: Simplify (/ 1 1) into 1
6.368 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
6.368 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
6.368 * [taylor]: Taking taylor expansion of (* x y) in y
6.368 * [taylor]: Taking taylor expansion of x in y
6.368 * [backup-simplify]: Simplify x into x
6.368 * [taylor]: Taking taylor expansion of y in y
6.368 * [backup-simplify]: Simplify 0 into 0
6.368 * [backup-simplify]: Simplify 1 into 1
6.368 * [backup-simplify]: Simplify (* x 0) into 0
6.368 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
6.368 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.368 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in y
6.368 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
6.368 * [taylor]: Taking taylor expansion of 1.0 in y
6.368 * [backup-simplify]: Simplify 1.0 into 1.0
6.368 * [taylor]: Taking taylor expansion of (/ 1 x) in y
6.368 * [taylor]: Taking taylor expansion of x in y
6.368 * [backup-simplify]: Simplify x into x
6.368 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.369 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
6.369 * [taylor]: Taking taylor expansion of 0.5 in y
6.369 * [backup-simplify]: Simplify 0.5 into 0.5
6.369 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.369 * [taylor]: Taking taylor expansion of y in y
6.369 * [backup-simplify]: Simplify 0 into 0
6.369 * [backup-simplify]: Simplify 1 into 1
6.369 * [backup-simplify]: Simplify (/ 1 1) into 1
6.369 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
6.369 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5
6.370 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
6.370 * [backup-simplify]: Simplify (+ (/ 1 x) (- 0.5)) into (- (/ 1 x) 0.5)
6.370 * [taylor]: Taking taylor expansion of (- (/ 1 x) 0.5) in x
6.370 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.370 * [taylor]: Taking taylor expansion of x in x
6.370 * [backup-simplify]: Simplify 0 into 0
6.370 * [backup-simplify]: Simplify 1 into 1
6.370 * [backup-simplify]: Simplify (/ 1 1) into 1
6.370 * [taylor]: Taking taylor expansion of 0.5 in x
6.370 * [backup-simplify]: Simplify 0.5 into 0.5
6.371 * [backup-simplify]: Simplify (+ 1 0) into 1
6.371 * [backup-simplify]: Simplify 1 into 1
6.371 * [backup-simplify]: Simplify (+ (* x 0) (+ (* 0 1) (* 0 0))) into 0
6.371 * [backup-simplify]: Simplify (- (+ (* (/ 1 x) (/ 0 x)))) into 0
6.371 * [backup-simplify]: Simplify (* 1.0 (/ 1 x)) into (/ 1.0 x)
6.372 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
6.372 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
6.372 * [backup-simplify]: Simplify (+ (/ 1.0 x) 0) into (* 1.0 (/ 1 x))
6.372 * [backup-simplify]: Simplify (- (* 1.0 (/ 1 x))) into (- (* 1.0 (/ 1 x)))
6.372 * [backup-simplify]: Simplify (+ 0 (- (* 1.0 (/ 1 x)))) into (- (* 1.0 (/ 1 x)))
6.372 * [taylor]: Taking taylor expansion of (- (* 1.0 (/ 1 x))) in x
6.372 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
6.372 * [taylor]: Taking taylor expansion of 1.0 in x
6.372 * [backup-simplify]: Simplify 1.0 into 1.0
6.372 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.372 * [taylor]: Taking taylor expansion of x in x
6.372 * [backup-simplify]: Simplify 0 into 0
6.372 * [backup-simplify]: Simplify 1 into 1
6.373 * [backup-simplify]: Simplify (/ 1 1) into 1
6.373 * [backup-simplify]: Simplify (* 1.0 1) into 1.0
6.373 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
6.373 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
6.374 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
6.374 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
6.374 * [backup-simplify]: Simplify (+ 0 (- 0.5)) into (- 0.5)
6.375 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
6.375 * [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)))
6.376 * [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))))
6.376 * [approximate]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in (y x) around 0
6.376 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
6.376 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
6.376 * [taylor]: Taking taylor expansion of (* x y) in x
6.376 * [taylor]: Taking taylor expansion of x in x
6.376 * [backup-simplify]: Simplify 0 into 0
6.376 * [backup-simplify]: Simplify 1 into 1
6.376 * [taylor]: Taking taylor expansion of y in x
6.376 * [backup-simplify]: Simplify y into y
6.376 * [backup-simplify]: Simplify (* 0 y) into 0
6.376 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
6.376 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
6.376 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in x
6.376 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
6.376 * [taylor]: Taking taylor expansion of 1.0 in x
6.376 * [backup-simplify]: Simplify 1.0 into 1.0
6.376 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.376 * [taylor]: Taking taylor expansion of x in x
6.376 * [backup-simplify]: Simplify 0 into 0
6.376 * [backup-simplify]: Simplify 1 into 1
6.376 * [backup-simplify]: Simplify (/ 1 1) into 1
6.376 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
6.376 * [taylor]: Taking taylor expansion of 0.5 in x
6.376 * [backup-simplify]: Simplify 0.5 into 0.5
6.376 * [taylor]: Taking taylor expansion of (/ 1 y) in x
6.376 * [taylor]: Taking taylor expansion of y in x
6.376 * [backup-simplify]: Simplify y into y
6.376 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
6.377 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
6.377 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
6.377 * [taylor]: Taking taylor expansion of (* x y) in y
6.377 * [taylor]: Taking taylor expansion of x in y
6.377 * [backup-simplify]: Simplify x into x
6.377 * [taylor]: Taking taylor expansion of y in y
6.377 * [backup-simplify]: Simplify 0 into 0
6.377 * [backup-simplify]: Simplify 1 into 1
6.377 * [backup-simplify]: Simplify (* x 0) into 0
6.377 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
6.377 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.377 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in y
6.377 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
6.377 * [taylor]: Taking taylor expansion of 1.0 in y
6.377 * [backup-simplify]: Simplify 1.0 into 1.0
6.377 * [taylor]: Taking taylor expansion of (/ 1 x) in y
6.377 * [taylor]: Taking taylor expansion of x in y
6.377 * [backup-simplify]: Simplify x into x
6.377 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.377 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
6.377 * [taylor]: Taking taylor expansion of 0.5 in y
6.377 * [backup-simplify]: Simplify 0.5 into 0.5
6.377 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.377 * [taylor]: Taking taylor expansion of y in y
6.377 * [backup-simplify]: Simplify 0 into 0
6.377 * [backup-simplify]: Simplify 1 into 1
6.377 * [backup-simplify]: Simplify (/ 1 1) into 1
6.377 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
6.377 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
6.378 * [taylor]: Taking taylor expansion of (* x y) in y
6.378 * [taylor]: Taking taylor expansion of x in y
6.378 * [backup-simplify]: Simplify x into x
6.378 * [taylor]: Taking taylor expansion of y in y
6.378 * [backup-simplify]: Simplify 0 into 0
6.378 * [backup-simplify]: Simplify 1 into 1
6.378 * [backup-simplify]: Simplify (* x 0) into 0
6.378 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
6.378 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.378 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (* 0.5 (/ 1 y))) in y
6.378 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
6.378 * [taylor]: Taking taylor expansion of 1.0 in y
6.378 * [backup-simplify]: Simplify 1.0 into 1.0
6.378 * [taylor]: Taking taylor expansion of (/ 1 x) in y
6.378 * [taylor]: Taking taylor expansion of x in y
6.378 * [backup-simplify]: Simplify x into x
6.378 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
6.378 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
6.378 * [taylor]: Taking taylor expansion of 0.5 in y
6.378 * [backup-simplify]: Simplify 0.5 into 0.5
6.378 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.378 * [taylor]: Taking taylor expansion of y in y
6.378 * [backup-simplify]: Simplify 0 into 0
6.378 * [backup-simplify]: Simplify 1 into 1
6.378 * [backup-simplify]: Simplify (/ 1 1) into 1
6.379 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
6.379 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5
6.379 * [backup-simplify]: Simplify (+ (/ 1 x) 0.5) into (+ (/ 1 x) 0.5)
6.379 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 0.5) in x
6.379 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.379 * [taylor]: Taking taylor expansion of x in x
6.379 * [backup-simplify]: Simplify 0 into 0
6.379 * [backup-simplify]: Simplify 1 into 1
6.379 * [backup-simplify]: Simplify (/ 1 1) into 1
6.379 * [taylor]: Taking taylor expansion of 0.5 in x
6.379 * [backup-simplify]: Simplify 0.5 into 0.5
6.380 * [backup-simplify]: Simplify (+ 1 0) into 1
6.380 * [backup-simplify]: Simplify 1 into 1
6.380 * [backup-simplify]: Simplify (+ (* x 0) (+ (* 0 1) (* 0 0))) into 0
6.380 * [backup-simplify]: Simplify (- (+ (* (/ 1 x) (/ 0 x)))) into 0
6.380 * [backup-simplify]: Simplify (* 1.0 (/ 1 x)) into (/ 1.0 x)
6.381 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
6.381 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
6.381 * [backup-simplify]: Simplify (+ (/ 1.0 x) 0) into (* 1.0 (/ 1 x))
6.381 * [backup-simplify]: Simplify (+ 0 (* 1.0 (/ 1 x))) into (* 1.0 (/ 1 x))
6.381 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
6.381 * [taylor]: Taking taylor expansion of 1.0 in x
6.381 * [backup-simplify]: Simplify 1.0 into 1.0
6.381 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.381 * [taylor]: Taking taylor expansion of x in x
6.381 * [backup-simplify]: Simplify 0 into 0
6.381 * [backup-simplify]: Simplify 1 into 1
6.382 * [backup-simplify]: Simplify (/ 1 1) into 1
6.382 * [backup-simplify]: Simplify (* 1.0 1) into 1.0
6.382 * [backup-simplify]: Simplify 1.0 into 1.0
6.382 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
6.383 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5
6.383 * [backup-simplify]: Simplify 0.5 into 0.5
6.383 * [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)))
6.383 * * * [progress]: simplifying candidates
6.383 * [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)))
6.384 * * [simplify]: iteration 0: 40 enodes
6.396 * * [simplify]: iteration 1: 111 enodes
6.435 * * [simplify]: iteration 2: 312 enodes
6.559 * * [simplify]: iteration 3: 1124 enodes
7.577 * * [simplify]: iteration 4: 4597 enodes
8.629 * * [simplify]: iteration complete: 5007 enodes
8.629 * * [simplify]: Extracting #0: cost 13 inf + 0
8.630 * * [simplify]: Extracting #1: cost 254 inf + 0
8.632 * * [simplify]: Extracting #2: cost 734 inf + 168
8.639 * * [simplify]: Extracting #3: cost 1088 inf + 12351
8.667 * * [simplify]: Extracting #4: cost 568 inf + 135685
8.736 * * [simplify]: Extracting #5: cost 102 inf + 325168
8.804 * * [simplify]: Extracting #6: cost 6 inf + 390261
8.873 * * [simplify]: Extracting #7: cost 0 inf + 392672
8.957 * [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))
8.959 * * * [progress]: adding candidates to table
9.020 * [progress]: [Phase 3 of 3] Extracting.
9.020 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>)
9.020 * * * [regime-changes]: Trying 4 branch expressions: ((- (* x (- y 1.0)) (* y 0.5)) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673) y x)
9.020 * * * * [regimes]: Trying to branch on (- (* x (- y 1.0)) (* y 0.5)) from (#<alt (λ (x y) (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>)
9.054 * * * * [regimes]: Trying to branch on (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673) from (#<alt (λ (x y) (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>)
9.083 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>)
9.108 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>)
9.136 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
9.136 * [simplify]: Simplifying:
  (+ (- (* y (- x 0.5)) (* x 1.0)) 0.918938533204673)
9.136 * * [simplify]: iteration 0: 10 enodes
9.137 * * [simplify]: iteration 1: 13 enodes
9.137 * * [simplify]: iteration complete: 13 enodes
9.137 * * [simplify]: Extracting #0: cost 1 inf + 0
9.137 * * [simplify]: Extracting #1: cost 3 inf + 0
9.137 * * [simplify]: Extracting #2: cost 4 inf + 1
9.137 * * [simplify]: Extracting #3: cost 8 inf + 1
9.137 * * [simplify]: Extracting #4: cost 5 inf + 46
9.138 * * [simplify]: Extracting #5: cost 0 inf + 541
9.138 * [simplify]: Simplified to:
  (+ (- (* (- x 0.5) y) (* 1.0 x)) 0.918938533204673)
10.329 * [regime-testing]: Baseline error score: 0.00879133992935209
10.348 * [regime-testing]: Oracle error score: 0.0011251406425803225
10.367 * [regime-testing]: End program error score: 0.00879133992935209