35.911 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.013 * * * [progress]: [2/2] Setting up program.
0.015 * [progress]: [Phase 2 of 3] Improving.
0.015 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* 2.0 (- (* x x) (* x y)))
0.016 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
0.017 * * [simplify]: iteration  1 :  13  enodes  (cost  7 )
0.019 * * [simplify]: iteration  2 :  32  enodes  (cost  7 )
0.023 * * [simplify]: iteration  3 :  58  enodes  (cost  7 )
0.031 * * [simplify]: iteration  4 :  72  enodes  (cost  7 )
0.043 * * [simplify]: iteration  5 :  81  enodes  (cost  7 )
0.054 * * [simplify]: iteration  done :  81  enodes  (cost  7 )
0.054 * [simplify]: Simplified to:
   (* (* x (- x y)) 2.0)
0.056 * * [progress]: iteration 1 / 4
0.056 * * * [progress]: picking best candidate
0.058 * * * * [pick]: Picked  #<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))>
0.058 * * * [progress]: localizing error
0.064 * * * [progress]: generating rewritten candidates
0.064 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.067 * * * [progress]: generating series expansions
0.067 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.067 * [approximate]: Taking taylor expansion of (- (pow x 2) (* x y)) in (x y) around 0
0.067 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in y
0.067 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.067 * [taylor]: Taking taylor expansion of x in y
0.067 * [taylor]: Taking taylor expansion of (* x y) in y
0.067 * [taylor]: Taking taylor expansion of x in y
0.067 * [taylor]: Taking taylor expansion of y in y
0.067 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in x
0.067 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.067 * [taylor]: Taking taylor expansion of x in x
0.067 * [taylor]: Taking taylor expansion of (* x y) in x
0.067 * [taylor]: Taking taylor expansion of x in x
0.067 * [taylor]: Taking taylor expansion of y in x
0.067 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in x
0.067 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.067 * [taylor]: Taking taylor expansion of x in x
0.067 * [taylor]: Taking taylor expansion of (* x y) in x
0.067 * [taylor]: Taking taylor expansion of x in x
0.067 * [taylor]: Taking taylor expansion of y in x
0.068 * [taylor]: Taking taylor expansion of 0 in y
0.068 * [taylor]: Taking taylor expansion of (- y) in y
0.068 * [taylor]: Taking taylor expansion of y in y
0.070 * [taylor]: Taking taylor expansion of 1 in y
0.072 * [taylor]: Taking taylor expansion of 0 in y
0.074 * [taylor]: Taking taylor expansion of 0 in y
0.074 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in (x y) around 0
0.074 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in y
0.074 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.074 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.074 * [taylor]: Taking taylor expansion of x in y
0.074 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.075 * [taylor]: Taking taylor expansion of (* x y) in y
0.075 * [taylor]: Taking taylor expansion of x in y
0.075 * [taylor]: Taking taylor expansion of y in y
0.075 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.075 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.075 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.075 * [taylor]: Taking taylor expansion of x in x
0.075 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.075 * [taylor]: Taking taylor expansion of (* x y) in x
0.075 * [taylor]: Taking taylor expansion of x in x
0.075 * [taylor]: Taking taylor expansion of y in x
0.076 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.076 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.076 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.076 * [taylor]: Taking taylor expansion of x in x
0.076 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.076 * [taylor]: Taking taylor expansion of (* x y) in x
0.076 * [taylor]: Taking taylor expansion of x in x
0.076 * [taylor]: Taking taylor expansion of y in x
0.077 * [taylor]: Taking taylor expansion of 1 in y
0.078 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.078 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.078 * [taylor]: Taking taylor expansion of y in y
0.080 * [taylor]: Taking taylor expansion of 0 in y
0.083 * [taylor]: Taking taylor expansion of 0 in y
0.086 * [taylor]: Taking taylor expansion of 0 in y
0.087 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in (x y) around 0
0.087 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in y
0.087 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.087 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.087 * [taylor]: Taking taylor expansion of x in y
0.087 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.087 * [taylor]: Taking taylor expansion of (* x y) in y
0.087 * [taylor]: Taking taylor expansion of x in y
0.087 * [taylor]: Taking taylor expansion of y in y
0.087 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.087 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.087 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.087 * [taylor]: Taking taylor expansion of x in x
0.088 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.088 * [taylor]: Taking taylor expansion of (* x y) in x
0.088 * [taylor]: Taking taylor expansion of x in x
0.088 * [taylor]: Taking taylor expansion of y in x
0.088 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.088 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.088 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.088 * [taylor]: Taking taylor expansion of x in x
0.089 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.089 * [taylor]: Taking taylor expansion of (* x y) in x
0.089 * [taylor]: Taking taylor expansion of x in x
0.089 * [taylor]: Taking taylor expansion of y in x
0.089 * [taylor]: Taking taylor expansion of 1 in y
0.090 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.090 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.090 * [taylor]: Taking taylor expansion of y in y
0.093 * [taylor]: Taking taylor expansion of 0 in y
0.096 * [taylor]: Taking taylor expansion of 0 in y
0.099 * [taylor]: Taking taylor expansion of 0 in y
0.099 * * * [progress]: simplifying candidates
0.100 * [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))
0.101 * * [simplify]: iteration  0 :  31  enodes  (cost  177 )
0.106 * * [simplify]: iteration  1 :  89  enodes  (cost  136 )
0.133 * * [simplify]: iteration  2 :  305  enodes  (cost  120 )
0.228 * * [simplify]: iteration  3 :  981  enodes  (cost  120 )
0.994 * * [simplify]: iteration  4 :  4029  enodes  (cost  120 )
2.726 * * [simplify]: iteration  done :  5000  enodes  (cost  120 )
2.726 * [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 (+ x y))
  (- x y)
  (- (* x y))
  (* x (- x y))
  (* x (- x y))
  (* x (- x y))
2.726 * * * [progress]: adding candidates to table
2.756 * * [progress]: iteration 2 / 4
2.756 * * * [progress]: picking best candidate
2.757 * * * * [pick]: Picked  #<alt (λ (x y) (* 2.0 (* x (- x y))))>
2.757 * * * [progress]: localizing error
2.762 * * * [progress]: generating rewritten candidates
2.762 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
2.772 * * * [progress]: generating series expansions
2.772 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
2.772 * [approximate]: Taking taylor expansion of (* x (- x y)) in (x y) around 0
2.772 * [taylor]: Taking taylor expansion of (* x (- x y)) in y
2.772 * [taylor]: Taking taylor expansion of x in y
2.772 * [taylor]: Taking taylor expansion of (- x y) in y
2.772 * [taylor]: Taking taylor expansion of x in y
2.772 * [taylor]: Taking taylor expansion of y in y
2.772 * [taylor]: Taking taylor expansion of (* x (- x y)) in x
2.773 * [taylor]: Taking taylor expansion of x in x
2.773 * [taylor]: Taking taylor expansion of (- x y) in x
2.773 * [taylor]: Taking taylor expansion of x in x
2.773 * [taylor]: Taking taylor expansion of y in x
2.773 * [taylor]: Taking taylor expansion of (* x (- x y)) in x
2.773 * [taylor]: Taking taylor expansion of x in x
2.773 * [taylor]: Taking taylor expansion of (- x y) in x
2.773 * [taylor]: Taking taylor expansion of x in x
2.773 * [taylor]: Taking taylor expansion of y in x
2.773 * [taylor]: Taking taylor expansion of 0 in y
2.774 * [taylor]: Taking taylor expansion of (- y) in y
2.774 * [taylor]: Taking taylor expansion of y in y
2.775 * [taylor]: Taking taylor expansion of 1 in y
2.777 * [taylor]: Taking taylor expansion of 0 in y
2.778 * [taylor]: Taking taylor expansion of 0 in y
2.779 * [approximate]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in (x y) around 0
2.779 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in y
2.779 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
2.779 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.779 * [taylor]: Taking taylor expansion of x in y
2.779 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.779 * [taylor]: Taking taylor expansion of y in y
2.779 * [taylor]: Taking taylor expansion of x in y
2.779 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in x
2.779 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.779 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.779 * [taylor]: Taking taylor expansion of x in x
2.780 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.780 * [taylor]: Taking taylor expansion of y in x
2.780 * [taylor]: Taking taylor expansion of x in x
2.780 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in x
2.780 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.780 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.780 * [taylor]: Taking taylor expansion of x in x
2.781 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.781 * [taylor]: Taking taylor expansion of y in x
2.781 * [taylor]: Taking taylor expansion of x in x
2.781 * [taylor]: Taking taylor expansion of 1 in y
2.782 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
2.782 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.782 * [taylor]: Taking taylor expansion of y in y
2.785 * [taylor]: Taking taylor expansion of 0 in y
2.788 * [taylor]: Taking taylor expansion of 0 in y
2.791 * [taylor]: Taking taylor expansion of 0 in y
2.791 * [approximate]: Taking taylor expansion of (* -1 (/ (- (/ 1 y) (/ 1 x)) x)) in (x y) around 0
2.791 * [taylor]: Taking taylor expansion of (* -1 (/ (- (/ 1 y) (/ 1 x)) x)) in y
2.791 * [taylor]: Taking taylor expansion of -1 in y
2.791 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) x) in y
2.792 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
2.792 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.792 * [taylor]: Taking taylor expansion of y in y
2.792 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.792 * [taylor]: Taking taylor expansion of x in y
2.792 * [taylor]: Taking taylor expansion of x in y
2.792 * [taylor]: Taking taylor expansion of (* -1 (/ (- (/ 1 y) (/ 1 x)) x)) in x
2.792 * [taylor]: Taking taylor expansion of -1 in x
2.792 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) x) in x
2.792 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.792 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.792 * [taylor]: Taking taylor expansion of y in x
2.792 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.792 * [taylor]: Taking taylor expansion of x in x
2.793 * [taylor]: Taking taylor expansion of x in x
2.793 * [taylor]: Taking taylor expansion of (* -1 (/ (- (/ 1 y) (/ 1 x)) x)) in x
2.793 * [taylor]: Taking taylor expansion of -1 in x
2.793 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) x) in x
2.793 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.793 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.793 * [taylor]: Taking taylor expansion of y in x
2.793 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.794 * [taylor]: Taking taylor expansion of x in x
2.794 * [taylor]: Taking taylor expansion of x in x
2.795 * [taylor]: Taking taylor expansion of 1 in y
2.798 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
2.799 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.799 * [taylor]: Taking taylor expansion of y in y
2.801 * [taylor]: Taking taylor expansion of 0 in y
2.805 * [taylor]: Taking taylor expansion of 0 in y
2.809 * [taylor]: Taking taylor expansion of 0 in y
2.810 * * * [progress]: simplifying candidates
2.810 * [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))
2.812 * * [simplify]: iteration  0 :  49  enodes  (cost  217 )
2.821 * * [simplify]: iteration  1 :  109  enodes  (cost  210 )
2.845 * * [simplify]: iteration  2 :  369  enodes  (cost  186 )
3.009 * * [simplify]: iteration  3 :  1470  enodes  (cost  186 )
3.805 * * [simplify]: iteration  done :  5000  enodes  (cost  186 )
3.805 * [simplify]: Simplified to:
   (* x (- x y))
  (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 (- x y))
  (* x (- (pow x 3) (pow y 3)))
  (* x (- (* x x) (* y y)))
  (* x (- x y))
  (* x (- x y))
  (* x (- x y))
3.805 * * * [progress]: adding candidates to table
3.846 * [progress]: [Phase 3 of 3] Extracting.
3.846 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))> #<alt (λ (x y) (* 2.0 (* x (- x y))))>)
3.846 * * * [regime-changes]: Trying 4 branch expressions: ((- (* x x) (* x y)) (* 2.0 (- (* x x) (* x y))) y x)
3.846 * * * * [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))))>)
3.857 * * * * [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))))>)
3.870 * * * * [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))))>)
3.880 * * * * [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))))>)
3.890 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
3.890 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* 2.0 (- (* x x) (* x y)))
3.890 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
3.891 * * [simplify]: iteration  1 :  9  enodes  (cost  9 )
3.891 * * [simplify]: iteration  done :  9  enodes  (cost  9 )
3.891 * [simplify]: Simplified to:
   (* 2.0 (- (* x x) (* x y)))
4.339 * [regime-testing]: Baseline error score: 0.01564819664976151
4.340 * [regime-testing]: Oracle error score: 0.00900112514064258
4.341 * [regime-testing]: End program error score: 0.01564819664976151
4.359 * [regime-testing]: Target error score: 0.009751218902362795