18.929 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.010 * * * [progress]: [2/2] Setting up program.
0.011 * [progress]: [Phase 2 of 3] Improving.
0.012 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* x (- x 1.0))
0.013 * * [simplify]: iteration  0 :  4  enodes  (cost  5 )
0.013 * * [simplify]: iteration  1 :  7  enodes  (cost  5 )
0.014 * * [simplify]: iteration  2 :  13  enodes  (cost  5 )
0.016 * * [simplify]: iteration  3 :  19  enodes  (cost  5 )
0.018 * * [simplify]: iteration  4 :  25  enodes  (cost  5 )
0.021 * * [simplify]: iteration  5 :  27  enodes  (cost  5 )
0.024 * * [simplify]: iteration  done :  27  enodes  (cost  5 )
0.024 * [simplify]: Simplified to:
   (* x (- x 1.0))
0.024 * * [progress]: iteration 1 / 4
0.024 * * * [progress]: picking best candidate
0.026 * * * * [pick]: Picked  #<alt (λ (x) (* x (- x 1.0)))>
0.026 * * * [progress]: localizing error
0.031 * * * [progress]: generating rewritten candidates
0.031 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.045 * * * [progress]: generating series expansions
0.045 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.045 * [approximate]: Taking taylor expansion of (* (- x 1.0) x) in (x) around 0
0.045 * [taylor]: Taking taylor expansion of (* (- x 1.0) x) in x
0.045 * [taylor]: Taking taylor expansion of (- x 1.0) in x
0.045 * [taylor]: Taking taylor expansion of x in x
0.045 * [taylor]: Taking taylor expansion of 1.0 in x
0.045 * [taylor]: Taking taylor expansion of x in x
0.045 * [taylor]: Taking taylor expansion of (* (- x 1.0) x) in x
0.045 * [taylor]: Taking taylor expansion of (- x 1.0) in x
0.045 * [taylor]: Taking taylor expansion of x in x
0.045 * [taylor]: Taking taylor expansion of 1.0 in x
0.045 * [taylor]: Taking taylor expansion of x in x
0.060 * [approximate]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in (x) around 0
0.060 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in x
0.060 * [taylor]: Taking taylor expansion of (- (/ 1 x) 1.0) in x
0.060 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.060 * [taylor]: Taking taylor expansion of x in x
0.060 * [taylor]: Taking taylor expansion of 1.0 in x
0.060 * [taylor]: Taking taylor expansion of x in x
0.061 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in x
0.061 * [taylor]: Taking taylor expansion of (- (/ 1 x) 1.0) in x
0.061 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.061 * [taylor]: Taking taylor expansion of x in x
0.061 * [taylor]: Taking taylor expansion of 1.0 in x
0.061 * [taylor]: Taking taylor expansion of x in x
0.076 * [approximate]: Taking taylor expansion of (/ (+ 1.0 (/ 1 x)) x) in (x) around 0
0.076 * [taylor]: Taking taylor expansion of (/ (+ 1.0 (/ 1 x)) x) in x
0.076 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
0.076 * [taylor]: Taking taylor expansion of 1.0 in x
0.076 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.076 * [taylor]: Taking taylor expansion of x in x
0.076 * [taylor]: Taking taylor expansion of x in x
0.077 * [taylor]: Taking taylor expansion of (/ (+ 1.0 (/ 1 x)) x) in x
0.077 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
0.077 * [taylor]: Taking taylor expansion of 1.0 in x
0.077 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.077 * [taylor]: Taking taylor expansion of x in x
0.077 * [taylor]: Taking taylor expansion of x in x
0.089 * * * [progress]: simplifying candidates
0.090 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (* x (- x 1.0)))
  (log1p (* x (- x 1.0)))
  (* x (- x 1.0))
  (+ (log x) (log (- x 1.0)))
  (log (* x (- x 1.0)))
  (exp (* x (- x 1.0)))
  (* (* (* x x) x) (* (* (- x 1.0) (- x 1.0)) (- x 1.0)))
  (* (cbrt (* x (- x 1.0))) (cbrt (* x (- x 1.0))))
  (cbrt (* x (- x 1.0)))
  (* (* (* x (- x 1.0)) (* x (- x 1.0))) (* x (- x 1.0)))
  (sqrt (* x (- x 1.0)))
  (sqrt (* x (- x 1.0)))
  (* (sqrt x) (sqrt (- x 1.0)))
  (* (sqrt x) (sqrt (- x 1.0)))
  (* x (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0))))))
  (* x (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0)))))
  (* x (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt 1.0) (sqrt 1.0)))))
  (* x (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0))))
  (* x (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* 1.0 1))))
  (* x (fma (- 1.0) 1 (* 1.0 1)))
  (* x (fma (sqrt x) (sqrt x) (- (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0))))))
  (* x (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0)))))
  (* x (fma (sqrt x) (sqrt x) (- (* (sqrt 1.0) (sqrt 1.0)))))
  (* x (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0))))
  (* x (fma (sqrt x) (sqrt x) (- (* 1.0 1))))
  (* x (fma (- 1.0) 1 (* 1.0 1)))
  (* x (fma 1 x (- (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0))))))
  (* x (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0)))))
  (* x (fma 1 x (- (* (sqrt 1.0) (sqrt 1.0)))))
  (* x (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0))))
  (* x (fma 1 x (- (* 1.0 1))))
  (* x (fma (- 1.0) 1 (* 1.0 1)))
  (* x x)
  (* x (- 1.0))
  (* x x)
  (* x (- 1.0))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0))))) x)
  (* (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0)))) x)
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt 1.0) (sqrt 1.0)))) x)
  (* (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0))) x)
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* 1.0 1))) x)
  (* (fma (- 1.0) 1 (* 1.0 1)) x)
  (* (fma (sqrt x) (sqrt x) (- (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0))))) x)
  (* (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0)))) x)
  (* (fma (sqrt x) (sqrt x) (- (* (sqrt 1.0) (sqrt 1.0)))) x)
  (* (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0))) x)
  (* (fma (sqrt x) (sqrt x) (- (* 1.0 1))) x)
  (* (fma (- 1.0) 1 (* 1.0 1)) x)
  (* (fma 1 x (- (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0))))) x)
  (* (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0)))) x)
  (* (fma 1 x (- (* (sqrt 1.0) (sqrt 1.0)))) x)
  (* (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0))) x)
  (* (fma 1 x (- (* 1.0 1))) x)
  (* (fma (- 1.0) 1 (* 1.0 1)) x)
  (* x x)
  (* (- 1.0) x)
  (* x x)
  (* (- 1.0) x)
  (* x (* (cbrt (- x 1.0)) (cbrt (- x 1.0))))
  (* x (sqrt (- x 1.0)))
  (* x 1)
  (* x (+ (sqrt x) (sqrt 1.0)))
  (* x 1)
  (* (cbrt x) (- x 1.0))
  (* (sqrt x) (- x 1.0))
  (* x (- x 1.0))
  (* x (- (pow x 3) (pow 1.0 3)))
  (* x (- (* x x) (* 1.0 1.0)))
  (- (pow x 2) (* 1.0 x))
  (- (pow x 2) (* 1.0 x))
  (- (pow x 2) (* 1.0 x))
0.093 * * [simplify]: iteration  0 :  98  enodes  (cost  721 )
0.122 * * [simplify]: iteration  1 :  185  enodes  (cost  542 )
0.186 * * [simplify]: iteration  2 :  423  enodes  (cost  438 )
0.379 * * [simplify]: iteration  3 :  1484  enodes  (cost  396 )
1.441 * * [simplify]: iteration  done :  5001  enodes  (cost  396 )
1.442 * [simplify]: Simplified to:
   (expm1 (* x (- x 1.0)))
  (log1p (* x (- x 1.0)))
  (* x (- x 1.0))
  (log (* x (- x 1.0)))
  (log (* x (- x 1.0)))
  (exp (* x (- x 1.0)))
  (pow (* (- x 1.0) x) 3)
  (* (cbrt (* x (- x 1.0))) (cbrt (* x (- x 1.0))))
  (cbrt (* x (- x 1.0)))
  (pow (* (- x 1.0) x) 3)
  (sqrt (* x (- x 1.0)))
  (sqrt (* x (- x 1.0)))
  (* (sqrt x) (sqrt (- x 1.0)))
  (* (sqrt x) (sqrt (- x 1.0)))
  (* x (- (pow (cbrt x) 3) 1.0))
  (* x (- 1.0 1.0))
  (* x (- (pow (cbrt x) 3) 1.0))
  (* x (- 1.0 1.0))
  (* x (- (pow (cbrt x) 3) 1.0))
  (* x (- 1.0 1.0))
  (* x (- x 1.0))
  (* x (- 1.0 1.0))
  (* x (- x 1.0))
  (* x (- 1.0 1.0))
  (* x (- x 1.0))
  (* x (- 1.0 1.0))
  (* x (- x 1.0))
  (* x (- 1.0 1.0))
  (* x (- x 1.0))
  (* x (- 1.0 1.0))
  (* x (- x 1.0))
  (* x (- 1.0 1.0))
  (pow x 2)
  (* 1.0 (- x))
  (pow x 2)
  (* 1.0 (- x))
  (* x (- (pow (cbrt x) 3) 1.0))
  (* x (- 1.0 1.0))
  (* x (- (pow (cbrt x) 3) 1.0))
  (* x (- 1.0 1.0))
  (* x (- (pow (cbrt x) 3) 1.0))
  (* x (- 1.0 1.0))
  (* x (- x 1.0))
  (* x (- 1.0 1.0))
  (* x (- x 1.0))
  (* x (- 1.0 1.0))
  (* x (- x 1.0))
  (* x (- 1.0 1.0))
  (* x (- x 1.0))
  (* x (- 1.0 1.0))
  (* x (- x 1.0))
  (* x (- 1.0 1.0))
  (* x (- x 1.0))
  (* x (- 1.0 1.0))
  (pow x 2)
  (* 1.0 (- x))
  (pow x 2)
  (* 1.0 (- x))
  (* x (* (cbrt (- x 1.0)) (cbrt (- x 1.0))))
  (* x (sqrt (- x 1.0)))
  x
  (* x (+ (sqrt x) (sqrt 1.0)))
  x
  (* (cbrt x) (- x 1.0))
  (* (sqrt x) (- x 1.0))
  (* x (- x 1.0))
  (* x (- (pow x 3) (pow 1.0 3)))
  (* x (- (* x x) (* 1.0 1.0)))
  (* x (- x 1.0))
  (* x (- x 1.0))
  (* x (- x 1.0))
1.442 * * * [progress]: adding candidates to table
1.491 * * [progress]: iteration 2 / 4
1.491 * * * [progress]: picking best candidate
1.492 * * * * [pick]: Picked  #<alt (λ (x) (+ (pow x 2) (* 1.0 (- x))))>
1.492 * * * [progress]: localizing error
1.498 * * * [progress]: generating rewritten candidates
1.498 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
1.506 * * * [progress]: generating series expansions
1.506 * * * * [progress]: [ 1 / 1 ] generating series at (2)
1.506 * [approximate]: Taking taylor expansion of (- (pow x 2) (* 1.0 x)) in (x) around 0
1.506 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 1.0 x)) in x
1.506 * [taylor]: Taking taylor expansion of (pow x 2) in x
1.506 * [taylor]: Taking taylor expansion of x in x
1.506 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
1.506 * [taylor]: Taking taylor expansion of 1.0 in x
1.506 * [taylor]: Taking taylor expansion of x in x
1.506 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 1.0 x)) in x
1.506 * [taylor]: Taking taylor expansion of (pow x 2) in x
1.506 * [taylor]: Taking taylor expansion of x in x
1.506 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
1.506 * [taylor]: Taking taylor expansion of 1.0 in x
1.506 * [taylor]: Taking taylor expansion of x in x
1.523 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 1.0 (/ 1 x))) in (x) around 0
1.523 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 1.0 (/ 1 x))) in x
1.523 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
1.523 * [taylor]: Taking taylor expansion of (pow x 2) in x
1.523 * [taylor]: Taking taylor expansion of x in x
1.523 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
1.524 * [taylor]: Taking taylor expansion of 1.0 in x
1.524 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.524 * [taylor]: Taking taylor expansion of x in x
1.524 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 1.0 (/ 1 x))) in x
1.524 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
1.524 * [taylor]: Taking taylor expansion of (pow x 2) in x
1.524 * [taylor]: Taking taylor expansion of x in x
1.524 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
1.524 * [taylor]: Taking taylor expansion of 1.0 in x
1.524 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.524 * [taylor]: Taking taylor expansion of x in x
1.548 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (* 1.0 (/ 1 x))) in (x) around 0
1.548 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (* 1.0 (/ 1 x))) in x
1.548 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
1.548 * [taylor]: Taking taylor expansion of (pow x 2) in x
1.548 * [taylor]: Taking taylor expansion of x in x
1.549 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
1.549 * [taylor]: Taking taylor expansion of 1.0 in x
1.549 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.549 * [taylor]: Taking taylor expansion of x in x
1.549 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (* 1.0 (/ 1 x))) in x
1.549 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
1.549 * [taylor]: Taking taylor expansion of (pow x 2) in x
1.549 * [taylor]: Taking taylor expansion of x in x
1.550 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
1.550 * [taylor]: Taking taylor expansion of 1.0 in x
1.550 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.550 * [taylor]: Taking taylor expansion of x in x
1.568 * * * [progress]: simplifying candidates
1.569 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (+ (pow x 2) (* 1.0 (- x))))
  (log1p (+ (pow x 2) (* 1.0 (- x))))
  (* (exp (pow x 2)) (exp (* 1.0 (- x))))
  (log (+ (pow x 2) (* 1.0 (- x))))
  (exp (+ (pow x 2) (* 1.0 (- x))))
  (* (cbrt (+ (pow x 2) (* 1.0 (- x)))) (cbrt (+ (pow x 2) (* 1.0 (- x)))))
  (cbrt (+ (pow x 2) (* 1.0 (- x))))
  (* (* (+ (pow x 2) (* 1.0 (- x))) (+ (pow x 2) (* 1.0 (- x)))) (+ (pow x 2) (* 1.0 (- x))))
  (sqrt (+ (pow x 2) (* 1.0 (- x))))
  (sqrt (+ (pow x 2) (* 1.0 (- x))))
  (+ (pow (pow x 2) 3) (pow (* 1.0 (- x)) 3))
  (+ (* (pow x 2) (pow x 2)) (- (* (* 1.0 (- x)) (* 1.0 (- x))) (* (pow x 2) (* 1.0 (- x)))))
  (- (* (pow x 2) (pow x 2)) (* (* 1.0 (- x)) (* 1.0 (- x))))
  (- (pow x 2) (* 1.0 (- x)))
  (- (pow x 2) (* 1.0 x))
  (- (pow x 2) (* 1.0 x))
  (- (pow x 2) (* 1.0 x))
1.570 * * [simplify]: iteration  0 :  32  enodes  (cost  202 )
1.576 * * [simplify]: iteration  1 :  101  enodes  (cost  175 )
1.614 * * [simplify]: iteration  2 :  385  enodes  (cost  128 )
1.891 * * [simplify]: iteration  3 :  1395  enodes  (cost  121 )
3.785 * * [simplify]: iteration  4 :  4965  enodes  (cost  120 )
5.456 * * [simplify]: iteration  done :  5000  enodes  (cost  120 )
5.456 * [simplify]: Simplified to:
   (expm1 (* x (- x 1.0)))
  (log1p (* x (- x 1.0)))
  (exp (* x (- x 1.0)))
  (log (* x (- x 1.0)))
  (exp (* x (- x 1.0)))
  (* (cbrt (* x (- x 1.0))) (cbrt (* x (- x 1.0))))
  (cbrt (* x (- x 1.0)))
  (pow (* x (- x 1.0)) 3)
  (sqrt (* x (- x 1.0)))
  (sqrt (* x (- x 1.0)))
  (- (pow x 6) (pow (* 1.0 x) 3))
  (fma (* 1.0 x) (* x (+ 1.0 x)) (pow x 4))
  (- (pow x 4) (* (* (pow x 2) 1.0) 1.0))
  (* x (+ 1.0 x))
  (* x (- x 1.0))
  (* x (- x 1.0))
  (* x (- x 1.0))
5.457 * * * [progress]: adding candidates to table
5.519 * [progress]: [Phase 3 of 3] Extracting.
5.519 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (* x (- x 1.0)))> #<alt (λ (x) (+ (pow x 2) (* 1.0 (- x))))>)
5.519 * * * [regime-changes]: Trying 2 branch expressions: ((* x (- x 1.0)) x)
5.519 * * * * [regimes]: Trying to branch on (* x (- x 1.0)) from (#<alt (λ (x) (* x (- x 1.0)))> #<alt (λ (x) (+ (pow x 2) (* 1.0 (- x))))>)
5.531 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (* x (- x 1.0)))> #<alt (λ (x) (+ (pow x 2) (* 1.0 (- x))))>)
5.542 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
5.542 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (+ (pow x 2) (* 1.0 (- x)))
5.542 * * [simplify]: iteration  0 :  7  enodes  (cost  8 )
5.543 * * [simplify]: iteration  1 :  11  enodes  (cost  8 )
5.543 * * [simplify]: iteration  2 :  14  enodes  (cost  8 )
5.544 * * [simplify]: iteration  3 :  15  enodes  (cost  8 )
5.545 * * [simplify]: iteration  done :  15  enodes  (cost  8 )
5.545 * [simplify]: Simplified to:
   (+ (pow x 2) (* 1.0 (- x)))
5.877 * [regime-testing]: Baseline error score: 0.009112991344331535
5.877 * [regime-testing]: Oracle error score: 0.0007500937617202151
5.878 * [regime-testing]: End program error score: 0.009112991344331535
5.895 * [regime-testing]: Target error score: 0.009112991344331535