21.616 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.014 * * * [progress]: [2/2] Setting up program.
0.015 * [progress]: [Phase 2 of 3] Improving.
0.016 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673)
0.016 * * [simplify]: iteration  0 :  10  enodes  (cost  11 )
0.018 * * [simplify]: iteration  1 :  19  enodes  (cost  11 )
0.020 * * [simplify]: iteration  2 :  42  enodes  (cost  11 )
0.025 * * [simplify]: iteration  3 :  70  enodes  (cost  11 )
0.036 * * [simplify]: iteration  4 :  133  enodes  (cost  11 )
0.060 * * [simplify]: iteration  5 :  203  enodes  (cost  11 )
0.096 * * [simplify]: iteration  6 :  298  enodes  (cost  11 )
0.158 * * [simplify]: iteration  7 :  505  enodes  (cost  11 )
0.287 * * [simplify]: iteration  8 :  680  enodes  (cost  11 )
0.487 * * [simplify]: iteration  9 :  694  enodes  (cost  11 )
0.689 * * [simplify]: iteration  done :  694  enodes  (cost  11 )
0.689 * [simplify]: Simplified to:
   (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673)
0.689 * * [progress]: iteration 1 / 4
0.689 * * * [progress]: picking best candidate
0.691 * * * * [pick]: Picked  #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>
0.691 * * * [progress]: localizing error
0.698 * * * [progress]: generating rewritten candidates
0.698 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1 1)
0.708 * * * [progress]: generating series expansions
0.708 * * * * [progress]: [ 1 / 1 ] generating series at (2 1 1)
0.709 * [approximate]: Taking taylor expansion of (* x (- y 1.0)) in (x y) around 0
0.709 * [taylor]: Taking taylor expansion of (* x (- y 1.0)) in y
0.709 * [taylor]: Taking taylor expansion of x in y
0.709 * [taylor]: Taking taylor expansion of (- y 1.0) in y
0.709 * [taylor]: Taking taylor expansion of y in y
0.709 * [taylor]: Taking taylor expansion of 1.0 in y
0.709 * [taylor]: Taking taylor expansion of (* x (- y 1.0)) in x
0.709 * [taylor]: Taking taylor expansion of x in x
0.709 * [taylor]: Taking taylor expansion of (- y 1.0) in x
0.709 * [taylor]: Taking taylor expansion of y in x
0.709 * [taylor]: Taking taylor expansion of 1.0 in x
0.709 * [taylor]: Taking taylor expansion of (* x (- y 1.0)) in x
0.709 * [taylor]: Taking taylor expansion of x in x
0.709 * [taylor]: Taking taylor expansion of (- y 1.0) in x
0.709 * [taylor]: Taking taylor expansion of y in x
0.709 * [taylor]: Taking taylor expansion of 1.0 in x
0.710 * [taylor]: Taking taylor expansion of 0 in y
0.710 * [taylor]: Taking taylor expansion of (- y 1.0) in y
0.710 * [taylor]: Taking taylor expansion of y in y
0.710 * [taylor]: Taking taylor expansion of 1.0 in y
0.713 * [taylor]: Taking taylor expansion of 0 in y
0.714 * [taylor]: Taking taylor expansion of 0 in y
0.716 * [taylor]: Taking taylor expansion of 0 in y
0.717 * [approximate]: Taking taylor expansion of (/ (- (/ 1 y) 1.0) x) in (x y) around 0
0.717 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) 1.0) x) in y
0.717 * [taylor]: Taking taylor expansion of (- (/ 1 y) 1.0) in y
0.717 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.717 * [taylor]: Taking taylor expansion of y in y
0.717 * [taylor]: Taking taylor expansion of 1.0 in y
0.717 * [taylor]: Taking taylor expansion of x in y
0.718 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) 1.0) x) in x
0.718 * [taylor]: Taking taylor expansion of (- (/ 1 y) 1.0) in x
0.718 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.718 * [taylor]: Taking taylor expansion of y in x
0.718 * [taylor]: Taking taylor expansion of 1.0 in x
0.718 * [taylor]: Taking taylor expansion of x in x
0.718 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) 1.0) x) in x
0.718 * [taylor]: Taking taylor expansion of (- (/ 1 y) 1.0) in x
0.718 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.718 * [taylor]: Taking taylor expansion of y in x
0.718 * [taylor]: Taking taylor expansion of 1.0 in x
0.718 * [taylor]: Taking taylor expansion of x in x
0.719 * [taylor]: Taking taylor expansion of (- (/ 1 y) 1.0) in y
0.719 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.719 * [taylor]: Taking taylor expansion of y in y
0.719 * [taylor]: Taking taylor expansion of 1.0 in y
0.721 * [taylor]: Taking taylor expansion of 0 in y
0.725 * [taylor]: Taking taylor expansion of 0 in y
0.727 * [taylor]: Taking taylor expansion of 0 in y
0.731 * [taylor]: Taking taylor expansion of 0 in y
0.731 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 y) 1.0) x) in (x y) around 0
0.731 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 1.0) x) in y
0.731 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 1.0) in y
0.731 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.731 * [taylor]: Taking taylor expansion of y in y
0.732 * [taylor]: Taking taylor expansion of 1.0 in y
0.732 * [taylor]: Taking taylor expansion of x in y
0.732 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 1.0) x) in x
0.732 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 1.0) in x
0.732 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.732 * [taylor]: Taking taylor expansion of y in x
0.732 * [taylor]: Taking taylor expansion of 1.0 in x
0.732 * [taylor]: Taking taylor expansion of x in x
0.732 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 1.0) x) in x
0.732 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 1.0) in x
0.732 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.732 * [taylor]: Taking taylor expansion of y in x
0.732 * [taylor]: Taking taylor expansion of 1.0 in x
0.732 * [taylor]: Taking taylor expansion of x in x
0.732 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 1.0) in y
0.732 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.732 * [taylor]: Taking taylor expansion of y in y
0.733 * [taylor]: Taking taylor expansion of 1.0 in y
0.734 * [taylor]: Taking taylor expansion of 0 in y
0.736 * [taylor]: Taking taylor expansion of 0 in y
0.739 * [taylor]: Taking taylor expansion of 0 in y
0.741 * [taylor]: Taking taylor expansion of 0 in y
0.741 * * * [progress]: simplifying candidates
0.742 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* x (- y 1.0))
  (+ (log x) (log (- y 1.0)))
  (log (* x (- y 1.0)))
  (exp (* x (- y 1.0)))
  (* (* (* x x) x) (* (* (- y 1.0) (- y 1.0)) (- y 1.0)))
  (* (cbrt (* x (- y 1.0))) (cbrt (* x (- y 1.0))))
  (cbrt (* x (- y 1.0)))
  (* (* (* x (- y 1.0)) (* x (- y 1.0))) (* x (- y 1.0)))
  (sqrt (* x (- y 1.0)))
  (sqrt (* x (- y 1.0)))
  (* (sqrt x) (sqrt (- y 1.0)))
  (* (sqrt x) (sqrt (- y 1.0)))
  (* x y)
  (* x (- 1.0))
  (* x y)
  (* x (- 1.0))
  (* y x)
  (* (- 1.0) x)
  (* y x)
  (* (- 1.0) x)
  (* x (* (cbrt (- y 1.0)) (cbrt (- y 1.0))))
  (* x (sqrt (- y 1.0)))
  (* x 1)
  (* x (+ (sqrt y) (sqrt 1.0)))
  (* x 1)
  (* (cbrt x) (- y 1.0))
  (* (sqrt x) (- y 1.0))
  (* x (- y 1.0))
  (* x (- (pow y 3) (pow 1.0 3)))
  (* x (- (* y y) (* 1.0 1.0)))
  (- (* x y) (* 1.0 x))
  (- (* x y) (* 1.0 x))
  (- (* x y) (* 1.0 x))
0.743 * * [simplify]: iteration  0 :  52  enodes  (cost  217 )
0.755 * * [simplify]: iteration  1 :  112  enodes  (cost  212 )
0.776 * * [simplify]: iteration  2 :  352  enodes  (cost  186 )
0.901 * * [simplify]: iteration  3 :  1038  enodes  (cost  186 )
1.334 * * [simplify]: iteration  4 :  2604  enodes  (cost  186 )
2.267 * * [simplify]: iteration  done :  5000  enodes  (cost  186 )
2.267 * [simplify]: Simplified to:
   (* x (- y 1.0))
  (log (* x (- y 1.0)))
  (log (* x (- y 1.0)))
  (exp (* x (- y 1.0)))
  (pow (* x (- y 1.0)) 3)
  (* (cbrt (* x (- y 1.0))) (cbrt (* x (- y 1.0))))
  (cbrt (* x (- y 1.0)))
  (pow (* x (- y 1.0)) 3)
  (sqrt (* x (- y 1.0)))
  (sqrt (* x (- y 1.0)))
  (* (sqrt x) (sqrt (- y 1.0)))
  (* (sqrt x) (sqrt (- y 1.0)))
  (* y x)
  (* (- 1.0) x)
  (* y x)
  (* (- 1.0) x)
  (* y x)
  (* (- 1.0) x)
  (* y x)
  (* (- 1.0) x)
  (* x (* (cbrt (- y 1.0)) (cbrt (- y 1.0))))
  (* x (sqrt (- y 1.0)))
  x
  (* x (+ (sqrt y) (sqrt 1.0)))
  x
  (* (cbrt x) (- y 1.0))
  (* (sqrt x) (- y 1.0))
  (* x (- y 1.0))
  (* x (- (pow y 3) (pow 1.0 3)))
  (* x (- (* y y) (* 1.0 1.0)))
  (* x (- y 1.0))
  (* x (- y 1.0))
  (* x (- y 1.0))
2.267 * * * [progress]: adding candidates to table
2.314 * * [progress]: iteration 2 / 4
2.314 * * * [progress]: picking best candidate
2.315 * * * * [pick]: Picked  #<alt (λ (x y) (+ (- (+ (* y x) (* (- 1.0) x)) (* y 0.5)) 0.918938533204673))>
2.315 * * * [progress]: localizing error
2.324 * * * [progress]: generating rewritten candidates
2.324 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1 1)
2.327 * * * [progress]: generating series expansions
2.327 * * * * [progress]: [ 1 / 1 ] generating series at (2 1 1)
2.328 * [approximate]: Taking taylor expansion of (- (* x y) (* 1.0 x)) in (y x) around 0
2.328 * [taylor]: Taking taylor expansion of (- (* x y) (* 1.0 x)) in x
2.328 * [taylor]: Taking taylor expansion of (* x y) in x
2.328 * [taylor]: Taking taylor expansion of x in x
2.328 * [taylor]: Taking taylor expansion of y in x
2.328 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
2.328 * [taylor]: Taking taylor expansion of 1.0 in x
2.328 * [taylor]: Taking taylor expansion of x in x
2.328 * [taylor]: Taking taylor expansion of (- (* x y) (* 1.0 x)) in y
2.328 * [taylor]: Taking taylor expansion of (* x y) in y
2.328 * [taylor]: Taking taylor expansion of x in y
2.328 * [taylor]: Taking taylor expansion of y in y
2.328 * [taylor]: Taking taylor expansion of (* 1.0 x) in y
2.328 * [taylor]: Taking taylor expansion of 1.0 in y
2.328 * [taylor]: Taking taylor expansion of x in y
2.328 * [taylor]: Taking taylor expansion of (- (* x y) (* 1.0 x)) in y
2.328 * [taylor]: Taking taylor expansion of (* x y) in y
2.328 * [taylor]: Taking taylor expansion of x in y
2.328 * [taylor]: Taking taylor expansion of y in y
2.328 * [taylor]: Taking taylor expansion of (* 1.0 x) in y
2.328 * [taylor]: Taking taylor expansion of 1.0 in y
2.328 * [taylor]: Taking taylor expansion of x in y
2.329 * [taylor]: Taking taylor expansion of (- (* 1.0 x)) in x
2.329 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
2.329 * [taylor]: Taking taylor expansion of 1.0 in x
2.329 * [taylor]: Taking taylor expansion of x in x
2.330 * [taylor]: Taking taylor expansion of x in x
2.333 * [taylor]: Taking taylor expansion of 0 in x
2.335 * [taylor]: Taking taylor expansion of 0 in x
2.338 * [taylor]: Taking taylor expansion of 0 in x
2.339 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (* 1.0 (/ 1 x))) in (y x) around 0
2.339 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (* 1.0 (/ 1 x))) in x
2.339 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
2.339 * [taylor]: Taking taylor expansion of (* x y) in x
2.339 * [taylor]: Taking taylor expansion of x in x
2.339 * [taylor]: Taking taylor expansion of y in x
2.339 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
2.339 * [taylor]: Taking taylor expansion of 1.0 in x
2.339 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.339 * [taylor]: Taking taylor expansion of x in x
2.340 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (* 1.0 (/ 1 x))) in y
2.340 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
2.340 * [taylor]: Taking taylor expansion of (* x y) in y
2.340 * [taylor]: Taking taylor expansion of x in y
2.340 * [taylor]: Taking taylor expansion of y in y
2.340 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
2.340 * [taylor]: Taking taylor expansion of 1.0 in y
2.340 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.340 * [taylor]: Taking taylor expansion of x in y
2.340 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (* 1.0 (/ 1 x))) in y
2.340 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
2.340 * [taylor]: Taking taylor expansion of (* x y) in y
2.340 * [taylor]: Taking taylor expansion of x in y
2.340 * [taylor]: Taking taylor expansion of y in y
2.341 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
2.341 * [taylor]: Taking taylor expansion of 1.0 in y
2.341 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.341 * [taylor]: Taking taylor expansion of x in y
2.341 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.341 * [taylor]: Taking taylor expansion of x in x
2.342 * [taylor]: Taking taylor expansion of (- (* 1.0 (/ 1 x))) in x
2.342 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
2.342 * [taylor]: Taking taylor expansion of 1.0 in x
2.342 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.342 * [taylor]: Taking taylor expansion of x in x
2.345 * [taylor]: Taking taylor expansion of 0 in x
2.348 * [taylor]: Taking taylor expansion of 0 in x
2.350 * [approximate]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (/ 1 (* x y))) in (y x) around 0
2.350 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (/ 1 (* x y))) in x
2.351 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
2.351 * [taylor]: Taking taylor expansion of 1.0 in x
2.351 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.351 * [taylor]: Taking taylor expansion of x in x
2.351 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
2.351 * [taylor]: Taking taylor expansion of (* x y) in x
2.351 * [taylor]: Taking taylor expansion of x in x
2.351 * [taylor]: Taking taylor expansion of y in x
2.351 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (/ 1 (* x y))) in y
2.351 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
2.351 * [taylor]: Taking taylor expansion of 1.0 in y
2.351 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.351 * [taylor]: Taking taylor expansion of x in y
2.351 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
2.351 * [taylor]: Taking taylor expansion of (* x y) in y
2.351 * [taylor]: Taking taylor expansion of x in y
2.351 * [taylor]: Taking taylor expansion of y in y
2.354 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (/ 1 (* x y))) in y
2.354 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
2.354 * [taylor]: Taking taylor expansion of 1.0 in y
2.354 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.354 * [taylor]: Taking taylor expansion of x in y
2.354 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
2.354 * [taylor]: Taking taylor expansion of (* x y) in y
2.354 * [taylor]: Taking taylor expansion of x in y
2.354 * [taylor]: Taking taylor expansion of y in y
2.355 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.355 * [taylor]: Taking taylor expansion of x in x
2.356 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
2.356 * [taylor]: Taking taylor expansion of 1.0 in x
2.356 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.356 * [taylor]: Taking taylor expansion of x in x
2.358 * [taylor]: Taking taylor expansion of 0 in x
2.361 * [taylor]: Taking taylor expansion of 0 in x
2.363 * * * [progress]: simplifying candidates
2.363 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (exp (* y x)) (exp (* (- 1.0) x)))
  (log (+ (* y x) (* (- 1.0) x)))
  (exp (+ (* y x) (* (- 1.0) x)))
  (* (cbrt (+ (* y x) (* (- 1.0) x))) (cbrt (+ (* y x) (* (- 1.0) x))))
  (cbrt (+ (* y x) (* (- 1.0) x)))
  (* (* (+ (* y x) (* (- 1.0) x)) (+ (* y x) (* (- 1.0) x))) (+ (* y x) (* (- 1.0) x)))
  (sqrt (+ (* y x) (* (- 1.0) x)))
  (sqrt (+ (* y x) (* (- 1.0) x)))
  (+ (pow (* y x) 3) (pow (* (- 1.0) x) 3))
  (+ (* (* y x) (* y x)) (- (* (* (- 1.0) x) (* (- 1.0) x)) (* (* y x) (* (- 1.0) x))))
  (- (* (* y x) (* y x)) (* (* (- 1.0) x) (* (- 1.0) x)))
  (- (* y x) (* (- 1.0) x))
  (+ y (- 1.0))
  (- (* x y) (* 1.0 x))
  (- (* x y) (* 1.0 x))
  (- (* x y) (* 1.0 x))
2.364 * * [simplify]: iteration  0 :  32  enodes  (cost  188 )
2.370 * * [simplify]: iteration  1 :  106  enodes  (cost  135 )
2.391 * * [simplify]: iteration  2 :  394  enodes  (cost  122 )
2.539 * * [simplify]: iteration  3 :  1462  enodes  (cost  118 )
3.663 * * [simplify]: iteration  4 :  4665  enodes  (cost  116 )
6.364 * * [simplify]: iteration  done :  5000  enodes  (cost  116 )
6.364 * [simplify]: Simplified to:
   (exp (* x (- y 1.0)))
  (log (* x (- y 1.0)))
  (exp (* x (- y 1.0)))
  (* (cbrt (* x (- y 1.0))) (cbrt (* x (- y 1.0))))
  (cbrt (* x (- y 1.0)))
  (pow (* x (- y 1.0)) 3)
  (sqrt (* x (- y 1.0)))
  (sqrt (* x (- y 1.0)))
  (* (- (pow y 3) (pow 1.0 3)) (pow x 3))
  (* (+ (* (* 1.0 x) (+ 1.0 y)) (* (* y y) x)) x)
  (* (* x x) (- (* y y) (* 1.0 1.0)))
  (* x (+ 1.0 y))
  (- y 1.0)
  (* x (- y 1.0))
  (* x (- y 1.0))
  (* x (- y 1.0))
6.364 * * * [progress]: adding candidates to table
6.398 * [progress]: [Phase 3 of 3] Extracting.
6.399 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (+ (- (+ (* y x) (* (- 1.0) x)) (* y 0.5)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>)
6.399 * * * [regime-changes]: Trying 4 branch expressions: ((- (* x (- y 1.0)) (* y 0.5)) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673) y x)
6.399 * * * * [regimes]: Trying to branch on (- (* x (- y 1.0)) (* y 0.5)) from (#<alt (λ (x y) (+ (- (+ (* y x) (* (- 1.0) x)) (* y 0.5)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>)
6.410 * * * * [regimes]: Trying to branch on (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673) from (#<alt (λ (x y) (+ (- (+ (* y x) (* (- 1.0) x)) (* y 0.5)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>)
6.422 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (+ (- (+ (* y x) (* (- 1.0) x)) (* y 0.5)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>)
6.436 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (+ (- (+ (* y x) (* (- 1.0) x)) (* y 0.5)) 0.918938533204673))> #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>)
6.447 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
6.448 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (+ (- (+ (* y x) (* (- 1.0) x)) (* y 0.5)) 0.918938533204673)
6.448 * * [simplify]: iteration  0 :  12  enodes  (cost  14 )
6.449 * * [simplify]: iteration  1 :  19  enodes  (cost  14 )
6.449 * * [simplify]: iteration  2 :  22  enodes  (cost  14 )
6.450 * * [simplify]: iteration  3 :  23  enodes  (cost  14 )
6.450 * * [simplify]: iteration  done :  23  enodes  (cost  14 )
6.450 * [simplify]: Simplified to:
   (+ (- (+ (* y x) (* (- 1.0) x)) (* y 0.5)) 0.918938533204673)
6.870 * [regime-testing]: Baseline error score: 0.009041371183258828
6.871 * [regime-testing]: Oracle error score: 0.004625578197274659
6.872 * [regime-testing]: End program error score: 0.009041371183258828