22.971 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.027 * * * [progress]: [2/2] Setting up program.
0.029 * [progress]: [Phase 2 of 3] Improving.
0.029 * [simplify]: Simplifying:
  (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673)
0.633 * * [progress]: iteration 1 / 4
0.634 * * * [progress]: picking best candidate
0.636 * * * * [pick]: Picked  #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>
0.636 * * * [progress]: localizing error
0.647 * * * [progress]: generating rewritten candidates
0.647 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1 1)
0.680 * * * [progress]: generating series expansions
0.680 * * * * [progress]: [ 1 / 1 ] generating series at (2 1 1)
0.680 * [backup-simplify]: Simplify (* x (- y 1.0)) into (* x (- y 1.0))
0.680 * [approximate]: Taking taylor expansion of (* x (- y 1.0)) in (x y) around 0
0.680 * [taylor]: Taking taylor expansion of (* x (- y 1.0)) in y
0.680 * [taylor]: Taking taylor expansion of x in y
0.680 * [backup-simplify]: Simplify x into x
0.680 * [taylor]: Taking taylor expansion of (- y 1.0) in y
0.680 * [taylor]: Taking taylor expansion of y in y
0.680 * [backup-simplify]: Simplify 0 into 0
0.680 * [backup-simplify]: Simplify 1 into 1
0.680 * [taylor]: Taking taylor expansion of 1.0 in y
0.680 * [backup-simplify]: Simplify 1.0 into 1.0
0.680 * [taylor]: Taking taylor expansion of (* x (- y 1.0)) in x
0.680 * [taylor]: Taking taylor expansion of x in x
0.680 * [backup-simplify]: Simplify 0 into 0
0.680 * [backup-simplify]: Simplify 1 into 1
0.680 * [taylor]: Taking taylor expansion of (- y 1.0) in x
0.680 * [taylor]: Taking taylor expansion of y in x
0.680 * [backup-simplify]: Simplify y into y
0.680 * [taylor]: Taking taylor expansion of 1.0 in x
0.680 * [backup-simplify]: Simplify 1.0 into 1.0
0.680 * [taylor]: Taking taylor expansion of (* x (- y 1.0)) in x
0.681 * [taylor]: Taking taylor expansion of x in x
0.681 * [backup-simplify]: Simplify 0 into 0
0.681 * [backup-simplify]: Simplify 1 into 1
0.681 * [taylor]: Taking taylor expansion of (- y 1.0) in x
0.681 * [taylor]: Taking taylor expansion of y in x
0.681 * [backup-simplify]: Simplify y into y
0.681 * [taylor]: Taking taylor expansion of 1.0 in x
0.681 * [backup-simplify]: Simplify 1.0 into 1.0
0.681 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
0.682 * [backup-simplify]: Simplify (+ y (- 1.0)) into (- y 1.0)
0.682 * [backup-simplify]: Simplify (* 0 (- y 1.0)) into 0
0.682 * [taylor]: Taking taylor expansion of 0 in y
0.682 * [backup-simplify]: Simplify 0 into 0
0.682 * [backup-simplify]: Simplify 0 into 0
0.682 * [backup-simplify]: Simplify (- 0) into 0
0.682 * [backup-simplify]: Simplify (+ 0 0) into 0
0.683 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (- y 1.0))) into (- y 1.0)
0.683 * [taylor]: Taking taylor expansion of (- y 1.0) in y
0.683 * [taylor]: Taking taylor expansion of y in y
0.683 * [backup-simplify]: Simplify 0 into 0
0.683 * [backup-simplify]: Simplify 1 into 1
0.683 * [taylor]: Taking taylor expansion of 1.0 in y
0.683 * [backup-simplify]: Simplify 1.0 into 1.0
0.684 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
0.684 * [backup-simplify]: Simplify (+ 0 (- 1.0)) into (- 1.0)
0.685 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
0.685 * [backup-simplify]: Simplify 0 into 0
0.693 * [backup-simplify]: Simplify (- 0) into 0
0.694 * [backup-simplify]: Simplify (+ 0 0) into 0
0.695 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (- y 1.0)))) into 0
0.695 * [taylor]: Taking taylor expansion of 0 in y
0.695 * [backup-simplify]: Simplify 0 into 0
0.695 * [backup-simplify]: Simplify 0 into 0
0.695 * [backup-simplify]: Simplify (- 0) into 0
0.695 * [backup-simplify]: Simplify (+ 1 0) into 1
0.695 * [backup-simplify]: Simplify 1 into 1
0.695 * [backup-simplify]: Simplify 0 into 0
0.695 * [backup-simplify]: Simplify (- 0) into 0
0.696 * [backup-simplify]: Simplify (+ 0 0) into 0
0.697 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (- y 1.0))))) into 0
0.697 * [taylor]: Taking taylor expansion of 0 in y
0.697 * [backup-simplify]: Simplify 0 into 0
0.697 * [backup-simplify]: Simplify 0 into 0
0.697 * [backup-simplify]: Simplify 0 into 0
0.697 * [backup-simplify]: Simplify (- 0) into 0
0.697 * [backup-simplify]: Simplify (+ 0 0) into 0
0.698 * [backup-simplify]: Simplify 0 into 0
0.698 * [backup-simplify]: Simplify 0 into 0
0.698 * [backup-simplify]: Simplify (- 0) into 0
0.698 * [backup-simplify]: Simplify (+ 0 0) into 0
0.700 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (- y 1.0)))))) into 0
0.700 * [taylor]: Taking taylor expansion of 0 in y
0.700 * [backup-simplify]: Simplify 0 into 0
0.700 * [backup-simplify]: Simplify 0 into 0
0.700 * [backup-simplify]: Simplify (+ (* 1 (* y x)) (* (- 1.0) (* 1 x))) into (- (* x y) (* 1.0 x))
0.700 * [backup-simplify]: Simplify (* (/ 1 x) (- (/ 1 y) 1.0)) into (/ (- (/ 1 y) 1.0) x)
0.700 * [approximate]: Taking taylor expansion of (/ (- (/ 1 y) 1.0) x) in (x y) around 0
0.700 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) 1.0) x) in y
0.700 * [taylor]: Taking taylor expansion of (- (/ 1 y) 1.0) in y
0.700 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.701 * [taylor]: Taking taylor expansion of y in y
0.701 * [backup-simplify]: Simplify 0 into 0
0.701 * [backup-simplify]: Simplify 1 into 1
0.701 * [backup-simplify]: Simplify (/ 1 1) into 1
0.701 * [taylor]: Taking taylor expansion of 1.0 in y
0.701 * [backup-simplify]: Simplify 1.0 into 1.0
0.701 * [taylor]: Taking taylor expansion of x in y
0.701 * [backup-simplify]: Simplify x into x
0.701 * [backup-simplify]: Simplify (+ 1 0) into 1
0.701 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
0.701 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) 1.0) x) in x
0.701 * [taylor]: Taking taylor expansion of (- (/ 1 y) 1.0) in x
0.701 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.702 * [taylor]: Taking taylor expansion of y in x
0.702 * [backup-simplify]: Simplify y into y
0.702 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.702 * [taylor]: Taking taylor expansion of 1.0 in x
0.702 * [backup-simplify]: Simplify 1.0 into 1.0
0.702 * [taylor]: Taking taylor expansion of x in x
0.702 * [backup-simplify]: Simplify 0 into 0
0.702 * [backup-simplify]: Simplify 1 into 1
0.702 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
0.702 * [backup-simplify]: Simplify (+ (/ 1 y) (- 1.0)) into (- (/ 1 y) 1.0)
0.703 * [backup-simplify]: Simplify (/ (- (/ 1 y) 1.0) 1) into (- (/ 1 y) 1.0)
0.703 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) 1.0) x) in x
0.703 * [taylor]: Taking taylor expansion of (- (/ 1 y) 1.0) in x
0.703 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.703 * [taylor]: Taking taylor expansion of y in x
0.703 * [backup-simplify]: Simplify y into y
0.703 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.703 * [taylor]: Taking taylor expansion of 1.0 in x
0.703 * [backup-simplify]: Simplify 1.0 into 1.0
0.703 * [taylor]: Taking taylor expansion of x in x
0.703 * [backup-simplify]: Simplify 0 into 0
0.703 * [backup-simplify]: Simplify 1 into 1
0.704 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
0.704 * [backup-simplify]: Simplify (+ (/ 1 y) (- 1.0)) into (- (/ 1 y) 1.0)
0.704 * [backup-simplify]: Simplify (/ (- (/ 1 y) 1.0) 1) into (- (/ 1 y) 1.0)
0.704 * [taylor]: Taking taylor expansion of (- (/ 1 y) 1.0) in y
0.704 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.704 * [taylor]: Taking taylor expansion of y in y
0.704 * [backup-simplify]: Simplify 0 into 0
0.705 * [backup-simplify]: Simplify 1 into 1
0.705 * [backup-simplify]: Simplify (/ 1 1) into 1
0.705 * [taylor]: Taking taylor expansion of 1.0 in y
0.705 * [backup-simplify]: Simplify 1.0 into 1.0
0.705 * [backup-simplify]: Simplify (+ 1 0) into 1
0.705 * [backup-simplify]: Simplify 1 into 1
0.705 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
0.706 * [backup-simplify]: Simplify (- 0) into 0
0.706 * [backup-simplify]: Simplify (+ 0 0) into 0
0.707 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (- (/ 1 y) 1.0) (/ 0 1)))) into 0
0.707 * [taylor]: Taking taylor expansion of 0 in y
0.707 * [backup-simplify]: Simplify 0 into 0
0.707 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.708 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
0.709 * [backup-simplify]: Simplify (+ 0 (- 1.0)) into (- 1.0)
0.709 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
0.709 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.709 * [backup-simplify]: Simplify (- 0) into 0
0.710 * [backup-simplify]: Simplify (+ 0 0) into 0
0.711 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (- (/ 1 y) 1.0) (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.711 * [taylor]: Taking taylor expansion of 0 in y
0.711 * [backup-simplify]: Simplify 0 into 0
0.711 * [backup-simplify]: Simplify 0 into 0
0.712 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.712 * [backup-simplify]: Simplify (- 0) into 0
0.712 * [backup-simplify]: Simplify (+ 0 0) into 0
0.712 * [backup-simplify]: Simplify 0 into 0
0.713 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.713 * [backup-simplify]: Simplify (- 0) into 0
0.713 * [backup-simplify]: Simplify (+ 0 0) into 0
0.715 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (- (/ 1 y) 1.0) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.715 * [taylor]: Taking taylor expansion of 0 in y
0.715 * [backup-simplify]: Simplify 0 into 0
0.715 * [backup-simplify]: Simplify 0 into 0
0.715 * [backup-simplify]: Simplify 0 into 0
0.716 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.716 * [backup-simplify]: Simplify (- 0) into 0
0.716 * [backup-simplify]: Simplify (+ 0 0) into 0
0.716 * [backup-simplify]: Simplify 0 into 0
0.717 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.717 * [backup-simplify]: Simplify (- 0) into 0
0.717 * [backup-simplify]: Simplify (+ 0 0) into 0
0.719 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (- (/ 1 y) 1.0) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.719 * [taylor]: Taking taylor expansion of 0 in y
0.719 * [backup-simplify]: Simplify 0 into 0
0.719 * [backup-simplify]: Simplify 0 into 0
0.720 * [backup-simplify]: Simplify (+ (* (- 1.0) (* 1 (/ 1 (/ 1 x)))) (* 1 (* (/ 1 (/ 1 y)) (/ 1 (/ 1 x))))) into (- (* x y) (* 1.0 x))
0.720 * [backup-simplify]: Simplify (* (/ 1 (- x)) (- (/ 1 (- y)) 1.0)) into (/ (+ (/ 1 y) 1.0) x)
0.720 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 y) 1.0) x) in (x y) around 0
0.720 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 1.0) x) in y
0.720 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 1.0) in y
0.720 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.720 * [taylor]: Taking taylor expansion of y in y
0.720 * [backup-simplify]: Simplify 0 into 0
0.720 * [backup-simplify]: Simplify 1 into 1
0.720 * [backup-simplify]: Simplify (/ 1 1) into 1
0.720 * [taylor]: Taking taylor expansion of 1.0 in y
0.720 * [backup-simplify]: Simplify 1.0 into 1.0
0.720 * [taylor]: Taking taylor expansion of x in y
0.720 * [backup-simplify]: Simplify x into x
0.721 * [backup-simplify]: Simplify (+ 1 0) into 1
0.721 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
0.721 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 1.0) x) in x
0.721 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 1.0) in x
0.721 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.721 * [taylor]: Taking taylor expansion of y in x
0.721 * [backup-simplify]: Simplify y into y
0.721 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.721 * [taylor]: Taking taylor expansion of 1.0 in x
0.721 * [backup-simplify]: Simplify 1.0 into 1.0
0.721 * [taylor]: Taking taylor expansion of x in x
0.721 * [backup-simplify]: Simplify 0 into 0
0.721 * [backup-simplify]: Simplify 1 into 1
0.721 * [backup-simplify]: Simplify (+ (/ 1 y) 1.0) into (+ (/ 1 y) 1.0)
0.721 * [backup-simplify]: Simplify (/ (+ (/ 1 y) 1.0) 1) into (+ (/ 1 y) 1.0)
0.721 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 1.0) x) in x
0.721 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 1.0) in x
0.721 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.721 * [taylor]: Taking taylor expansion of y in x
0.721 * [backup-simplify]: Simplify y into y
0.721 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.721 * [taylor]: Taking taylor expansion of 1.0 in x
0.721 * [backup-simplify]: Simplify 1.0 into 1.0
0.721 * [taylor]: Taking taylor expansion of x in x
0.721 * [backup-simplify]: Simplify 0 into 0
0.721 * [backup-simplify]: Simplify 1 into 1
0.721 * [backup-simplify]: Simplify (+ (/ 1 y) 1.0) into (+ (/ 1 y) 1.0)
0.721 * [backup-simplify]: Simplify (/ (+ (/ 1 y) 1.0) 1) into (+ (/ 1 y) 1.0)
0.721 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 1.0) in y
0.721 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.721 * [taylor]: Taking taylor expansion of y in y
0.722 * [backup-simplify]: Simplify 0 into 0
0.722 * [backup-simplify]: Simplify 1 into 1
0.722 * [backup-simplify]: Simplify (/ 1 1) into 1
0.722 * [taylor]: Taking taylor expansion of 1.0 in y
0.722 * [backup-simplify]: Simplify 1.0 into 1.0
0.722 * [backup-simplify]: Simplify (+ 1 0) into 1
0.722 * [backup-simplify]: Simplify 1 into 1
0.722 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
0.722 * [backup-simplify]: Simplify (+ 0 0) into 0
0.723 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (+ (/ 1 y) 1.0) (/ 0 1)))) into 0
0.723 * [taylor]: Taking taylor expansion of 0 in y
0.723 * [backup-simplify]: Simplify 0 into 0
0.723 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.724 * [backup-simplify]: Simplify (+ 0 1.0) into 1.0
0.724 * [backup-simplify]: Simplify 1.0 into 1.0
0.724 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.724 * [backup-simplify]: Simplify (+ 0 0) into 0
0.725 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (+ (/ 1 y) 1.0) (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.725 * [taylor]: Taking taylor expansion of 0 in y
0.725 * [backup-simplify]: Simplify 0 into 0
0.725 * [backup-simplify]: Simplify 0 into 0
0.725 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.726 * [backup-simplify]: Simplify (+ 0 0) into 0
0.726 * [backup-simplify]: Simplify 0 into 0
0.726 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.726 * [backup-simplify]: Simplify (+ 0 0) into 0
0.727 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (+ (/ 1 y) 1.0) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.727 * [taylor]: Taking taylor expansion of 0 in y
0.727 * [backup-simplify]: Simplify 0 into 0
0.727 * [backup-simplify]: Simplify 0 into 0
0.727 * [backup-simplify]: Simplify 0 into 0
0.728 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.728 * [backup-simplify]: Simplify (+ 0 0) into 0
0.728 * [backup-simplify]: Simplify 0 into 0
0.728 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.728 * [backup-simplify]: Simplify (+ 0 0) into 0
0.730 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (+ (/ 1 y) 1.0) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.730 * [taylor]: Taking taylor expansion of 0 in y
0.730 * [backup-simplify]: Simplify 0 into 0
0.730 * [backup-simplify]: Simplify 0 into 0
0.730 * [backup-simplify]: Simplify (+ (* 1.0 (* 1 (/ 1 (/ 1 (- x))))) (* 1 (* (/ 1 (/ 1 (- y))) (/ 1 (/ 1 (- x)))))) into (- (* x y) (* 1.0 x))
0.730 * * * [progress]: simplifying candidates
0.731 * [simplify]: Simplifying:
  (* 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))
1.335 * * * [progress]: adding candidates to table
1.403 * [progress]: [Phase 3 of 3] Extracting.
1.405 * [simplify]: Simplifying:
  (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673)
3.189 * [regime-testing]: Baseline error score: 0.009501187648456057
3.191 * [regime-testing]: Oracle error score: 0.009501187648456057
3.191 * [regime-testing]: End program error score: 0.009501187648456057