13.219 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.014 * * * [progress]: [2/2] Setting up program.
0.016 * [progress]: [Phase 2 of 3] Improving.
0.016 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* 2.0 (- (* x x) (* x y)))
0.017 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
0.018 * * [simplify]: iteration  1 :  13  enodes  (cost  7 )
0.019 * * [simplify]: iteration  2 :  32  enodes  (cost  7 )
0.024 * * [simplify]: iteration  3 :  58  enodes  (cost  7 )
0.031 * * [simplify]: iteration  4 :  75  enodes  (cost  7 )
0.044 * * [simplify]: iteration  5 :  84  enodes  (cost  7 )
0.057 * * [simplify]: iteration  done :  84  enodes  (cost  7 )
0.057 * [simplify]: Simplified to:
   (* (* x (- x y)) 2.0)
0.059 * * [progress]: iteration 1 / 4
0.059 * * * [progress]: picking best candidate
0.061 * * * * [pick]: Picked  #<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))>
0.061 * * * [progress]: localizing error
0.066 * * * [progress]: generating rewritten candidates
0.067 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.070 * * * [progress]: generating series expansions
0.070 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.070 * [approximate]: Taking taylor expansion of (- (pow x 2) (* x y)) in (x y) around 0
0.070 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in y
0.070 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.070 * [taylor]: Taking taylor expansion of x in y
0.070 * [taylor]: Taking taylor expansion of (* x y) in y
0.070 * [taylor]: Taking taylor expansion of x in y
0.070 * [taylor]: Taking taylor expansion of y in y
0.070 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in x
0.070 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.070 * [taylor]: Taking taylor expansion of x in x
0.070 * [taylor]: Taking taylor expansion of (* x y) in x
0.070 * [taylor]: Taking taylor expansion of x in x
0.070 * [taylor]: Taking taylor expansion of y in x
0.070 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in x
0.070 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.070 * [taylor]: Taking taylor expansion of x in x
0.070 * [taylor]: Taking taylor expansion of (* x y) in x
0.070 * [taylor]: Taking taylor expansion of x in x
0.070 * [taylor]: Taking taylor expansion of y in x
0.071 * [taylor]: Taking taylor expansion of 0 in y
0.071 * [taylor]: Taking taylor expansion of (- y) in y
0.071 * [taylor]: Taking taylor expansion of y in y
0.073 * [taylor]: Taking taylor expansion of 1 in y
0.074 * [taylor]: Taking taylor expansion of 0 in y
0.076 * [taylor]: Taking taylor expansion of 0 in y
0.077 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in (x y) around 0
0.077 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in y
0.077 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.077 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.077 * [taylor]: Taking taylor expansion of x in y
0.077 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.077 * [taylor]: Taking taylor expansion of (* x y) in y
0.077 * [taylor]: Taking taylor expansion of x in y
0.077 * [taylor]: Taking taylor expansion of y in y
0.077 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.077 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.077 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.077 * [taylor]: Taking taylor expansion of x in x
0.078 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.078 * [taylor]: Taking taylor expansion of (* x y) in x
0.078 * [taylor]: Taking taylor expansion of x in x
0.078 * [taylor]: Taking taylor expansion of y in x
0.078 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.078 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.078 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.078 * [taylor]: Taking taylor expansion of x in x
0.079 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.079 * [taylor]: Taking taylor expansion of (* x y) in x
0.079 * [taylor]: Taking taylor expansion of x in x
0.079 * [taylor]: Taking taylor expansion of y in x
0.079 * [taylor]: Taking taylor expansion of 1 in y
0.080 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.080 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.080 * [taylor]: Taking taylor expansion of y in y
0.083 * [taylor]: Taking taylor expansion of 0 in y
0.086 * [taylor]: Taking taylor expansion of 0 in y
0.089 * [taylor]: Taking taylor expansion of 0 in y
0.089 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in (x y) around 0
0.089 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in y
0.089 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.089 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.089 * [taylor]: Taking taylor expansion of x in y
0.089 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.089 * [taylor]: Taking taylor expansion of (* x y) in y
0.089 * [taylor]: Taking taylor expansion of x in y
0.090 * [taylor]: Taking taylor expansion of y in y
0.090 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.090 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.090 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.090 * [taylor]: Taking taylor expansion of x in x
0.090 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.090 * [taylor]: Taking taylor expansion of (* x y) in x
0.090 * [taylor]: Taking taylor expansion of x in x
0.090 * [taylor]: Taking taylor expansion of y in x
0.091 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.091 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.091 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.091 * [taylor]: Taking taylor expansion of x in x
0.091 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.091 * [taylor]: Taking taylor expansion of (* x y) in x
0.091 * [taylor]: Taking taylor expansion of x in x
0.091 * [taylor]: Taking taylor expansion of y in x
0.092 * [taylor]: Taking taylor expansion of 1 in y
0.093 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.093 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.093 * [taylor]: Taking taylor expansion of y in y
0.095 * [taylor]: Taking taylor expansion of 0 in y
0.101 * [taylor]: Taking taylor expansion of 0 in y
0.105 * [taylor]: Taking taylor expansion of 0 in y
0.105 * * * [progress]: simplifying candidates
0.105 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (exp (* x x)) (exp (* x y)))
  (log (- (* x x) (* x y)))
  (exp (- (* x x) (* x y)))
  (* (cbrt (- (* x x) (* x y))) (cbrt (- (* x x) (* x y))))
  (cbrt (- (* x x) (* x y)))
  (* (* (- (* x x) (* x y)) (- (* x x) (* x y))) (- (* x x) (* x y)))
  (sqrt (- (* x x) (* x y)))
  (sqrt (- (* x x) (* x y)))
  (- (pow (* x x) 3) (pow (* x y) 3))
  (+ (* (* x x) (* x x)) (+ (* (* x y) (* x y)) (* (* x x) (* x y))))
  (- (* x y))
  (- (* (* x x) (* x x)) (* (* x y) (* x y)))
  (+ (* x x) (* x y))
  (- x y)
  (- (* x y))
  (- (pow x 2) (* x y))
  (- (pow x 2) (* x y))
  (- (pow x 2) (* x y))
0.107 * * [simplify]: iteration  0 :  31  enodes  (cost  177 )
0.112 * * [simplify]: iteration  1 :  89  enodes  (cost  136 )
0.130 * * [simplify]: iteration  2 :  325  enodes  (cost  120 )
0.239 * * [simplify]: iteration  3 :  1172  enodes  (cost  120 )
0.755 * * [simplify]: iteration  4 :  4371  enodes  (cost  120 )
2.704 * * [simplify]: iteration  done :  5000  enodes  (cost  120 )
2.704 * [simplify]: Simplified to:
   (exp (* x (- x y)))
  (log (* x (- x y)))
  (exp (* x (- x y)))
  (* (cbrt (* x (- x y))) (cbrt (* x (- x y))))
  (cbrt (* x (- x y)))
  (pow (* x (- x y)) 3)
  (sqrt (* x (- x y)))
  (sqrt (* x (- x y)))
  (- (pow x 6) (pow (* x y) 3))
  (+ (* (* x y) (* x (+ x y))) (pow x 4))
  (- (* x y))
  (* (* x (+ x y)) (* x (- x y)))
  (* (+ x y) x)
  (- x y)
  (- (* x y))
  (* x (- x y))
  (* x (- x y))
  (* x (- x y))
2.704 * * * [progress]: adding candidates to table
2.732 * * [progress]: iteration 2 / 4
2.732 * * * [progress]: picking best candidate
2.733 * * * * [pick]: Picked  #<alt (λ (x y) (* 2.0 (* x (- x y))))>
2.733 * * * [progress]: localizing error
2.738 * * * [progress]: generating rewritten candidates
2.738 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
2.748 * * * [progress]: generating series expansions
2.748 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
2.749 * [approximate]: Taking taylor expansion of (* x (- x y)) in (x y) around 0
2.749 * [taylor]: Taking taylor expansion of (* x (- x y)) in y
2.749 * [taylor]: Taking taylor expansion of x in y
2.749 * [taylor]: Taking taylor expansion of (- x y) in y
2.749 * [taylor]: Taking taylor expansion of x in y
2.749 * [taylor]: Taking taylor expansion of y in y
2.749 * [taylor]: Taking taylor expansion of (* x (- x y)) in x
2.749 * [taylor]: Taking taylor expansion of x in x
2.749 * [taylor]: Taking taylor expansion of (- x y) in x
2.749 * [taylor]: Taking taylor expansion of x in x
2.749 * [taylor]: Taking taylor expansion of y in x
2.749 * [taylor]: Taking taylor expansion of (* x (- x y)) in x
2.749 * [taylor]: Taking taylor expansion of x in x
2.749 * [taylor]: Taking taylor expansion of (- x y) in x
2.749 * [taylor]: Taking taylor expansion of x in x
2.749 * [taylor]: Taking taylor expansion of y in x
2.749 * [taylor]: Taking taylor expansion of 0 in y
2.750 * [taylor]: Taking taylor expansion of (- y) in y
2.750 * [taylor]: Taking taylor expansion of y in y
2.751 * [taylor]: Taking taylor expansion of 1 in y
2.753 * [taylor]: Taking taylor expansion of 0 in y
2.754 * [taylor]: Taking taylor expansion of 0 in y
2.755 * [approximate]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in (x y) around 0
2.755 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in y
2.755 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
2.755 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.755 * [taylor]: Taking taylor expansion of x in y
2.755 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.755 * [taylor]: Taking taylor expansion of y in y
2.755 * [taylor]: Taking taylor expansion of x in y
2.756 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in x
2.756 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.756 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.756 * [taylor]: Taking taylor expansion of x in x
2.756 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.756 * [taylor]: Taking taylor expansion of y in x
2.756 * [taylor]: Taking taylor expansion of x in x
2.757 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in x
2.757 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.757 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.757 * [taylor]: Taking taylor expansion of x in x
2.757 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.757 * [taylor]: Taking taylor expansion of y in x
2.757 * [taylor]: Taking taylor expansion of x in x
2.757 * [taylor]: Taking taylor expansion of 1 in y
2.758 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
2.758 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.758 * [taylor]: Taking taylor expansion of y in y
2.761 * [taylor]: Taking taylor expansion of 0 in y
2.764 * [taylor]: Taking taylor expansion of 0 in y
2.767 * [taylor]: Taking taylor expansion of 0 in y
2.768 * [approximate]: Taking taylor expansion of (* -1 (/ (- (/ 1 y) (/ 1 x)) x)) in (x y) around 0
2.768 * [taylor]: Taking taylor expansion of (* -1 (/ (- (/ 1 y) (/ 1 x)) x)) in y
2.768 * [taylor]: Taking taylor expansion of -1 in y
2.768 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) x) in y
2.768 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
2.768 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.768 * [taylor]: Taking taylor expansion of y in y
2.768 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.768 * [taylor]: Taking taylor expansion of x in y
2.768 * [taylor]: Taking taylor expansion of x in y
2.768 * [taylor]: Taking taylor expansion of (* -1 (/ (- (/ 1 y) (/ 1 x)) x)) in x
2.768 * [taylor]: Taking taylor expansion of -1 in x
2.768 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) x) in x
2.768 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.769 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.769 * [taylor]: Taking taylor expansion of y in x
2.769 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.769 * [taylor]: Taking taylor expansion of x in x
2.769 * [taylor]: Taking taylor expansion of x in x
2.770 * [taylor]: Taking taylor expansion of (* -1 (/ (- (/ 1 y) (/ 1 x)) x)) in x
2.770 * [taylor]: Taking taylor expansion of -1 in x
2.770 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) x) in x
2.770 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.770 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.770 * [taylor]: Taking taylor expansion of y in x
2.770 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.770 * [taylor]: Taking taylor expansion of x in x
2.770 * [taylor]: Taking taylor expansion of x in x
2.771 * [taylor]: Taking taylor expansion of 1 in y
2.776 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
2.776 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.776 * [taylor]: Taking taylor expansion of y in y
2.779 * [taylor]: Taking taylor expansion of 0 in y
2.782 * [taylor]: Taking taylor expansion of 0 in y
2.786 * [taylor]: Taking taylor expansion of 0 in y
2.787 * * * [progress]: simplifying candidates
2.787 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* x (- x y))
  (+ (log x) (log (- x y)))
  (log (* x (- x y)))
  (exp (* x (- x y)))
  (* (* (* x x) x) (* (* (- x y) (- x y)) (- x y)))
  (* (cbrt (* x (- x y))) (cbrt (* x (- x y))))
  (cbrt (* x (- x y)))
  (* (* (* x (- x y)) (* x (- x y))) (* x (- x y)))
  (sqrt (* x (- x y)))
  (sqrt (* x (- x y)))
  (* (sqrt x) (sqrt (- x y)))
  (* (sqrt x) (sqrt (- x y)))
  (* x x)
  (* x (- y))
  (* x x)
  (* x (- y))
  (* x x)
  (* (- y) x)
  (* x x)
  (* (- y) x)
  (* x (* (cbrt (- x y)) (cbrt (- x y))))
  (* x (sqrt (- x y)))
  (* x 1)
  (* x (+ (sqrt x) (sqrt y)))
  (* x 1)
  (* (cbrt x) (- x y))
  (* (sqrt x) (- x y))
  (* x (- x y))
  (* x (- (pow x 3) (pow y 3)))
  (* x (- (* x x) (* y y)))
  (- (pow x 2) (* x y))
  (- (pow x 2) (* x y))
  (- (pow x 2) (* x y))
2.789 * * [simplify]: iteration  0 :  49  enodes  (cost  217 )
2.797 * * [simplify]: iteration  1 :  114  enodes  (cost  210 )
2.821 * * [simplify]: iteration  2 :  432  enodes  (cost  186 )
2.972 * * [simplify]: iteration  3 :  1840  enodes  (cost  186 )
4.000 * * [simplify]: iteration  done :  5000  enodes  (cost  186 )
4.000 * [simplify]: Simplified to:
   (* (- x y) x)
  (log (* x (- x y)))
  (log (* x (- x y)))
  (exp (* x (- x y)))
  (pow (* x (- x y)) 3)
  (* (cbrt (* x (- x y))) (cbrt (* x (- x y))))
  (cbrt (* x (- x y)))
  (pow (* x (- x y)) 3)
  (sqrt (* x (- x y)))
  (sqrt (* x (- x y)))
  (* (sqrt x) (sqrt (- x y)))
  (* (sqrt x) (sqrt (- x y)))
  (* x x)
  (* x (- y))
  (* x x)
  (* x (- y))
  (* x x)
  (* x (- y))
  (* x x)
  (* x (- y))
  (* x (* (cbrt (- x y)) (cbrt (- x y))))
  (* x (sqrt (- x y)))
  x
  (* x (+ (sqrt x) (sqrt y)))
  x
  (* (cbrt x) (- x y))
  (* (sqrt x) (- x y))
  (* (- x y) x)
  (* x (- (pow x 3) (pow y 3)))
  (* x (- (* x x) (* y y)))
  (* (- x y) x)
  (* (- x y) x)
  (* (- x y) x)
4.000 * * * [progress]: adding candidates to table
4.044 * [progress]: [Phase 3 of 3] Extracting.
4.044 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))> #<alt (λ (x y) (* 2.0 (* x (- x y))))>)
4.044 * * * [regime-changes]: Trying 4 branch expressions: ((- (* x x) (* x y)) (* 2.0 (- (* x x) (* x y))) y x)
4.044 * * * * [regimes]: Trying to branch on (- (* x x) (* x y)) from (#<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))> #<alt (λ (x y) (* 2.0 (* x (- x y))))>)
4.055 * * * * [regimes]: Trying to branch on (* 2.0 (- (* x x) (* x y))) from (#<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))> #<alt (λ (x y) (* 2.0 (* x (- x y))))>)
4.066 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))> #<alt (λ (x y) (* 2.0 (* x (- x y))))>)
4.076 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))> #<alt (λ (x y) (* 2.0 (* x (- x y))))>)
4.089 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
4.089 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* 2.0 (- (* x x) (* x y)))
4.090 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
4.090 * * [simplify]: iteration  1 :  9  enodes  (cost  9 )
4.090 * * [simplify]: iteration  done :  9  enodes  (cost  9 )
4.090 * [simplify]: Simplified to:
   (* 2.0 (- (* x x) (* x y)))
4.545 * [regime-testing]: Baseline error score: 0.01564819664976151
4.545 * [regime-testing]: Oracle error score: 0.00900112514064258
4.546 * [regime-testing]: End program error score: 0.01564819664976151
4.563 * [regime-testing]: Target error score: 0.009751218902362795