0.837 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.306 * * * [progress]: [2/2] Setting up program.
0.309 * [progress]: [Phase 2 of 3] Improving.
0.312 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (sqrt (- x 1.0)) (sqrt x))
0.317 * * [simplify]: iteration  0 :  9  enodes  (cost  4 )
0.319 * * [simplify]: iteration  1 :  10  enodes  (cost  4 )
0.320 * * [simplify]: iteration  2 :  10  enodes  (cost  4 )
0.320 * [simplify]: Simplified to:
   (* (sqrt (- x 1.0)) (sqrt x))
0.322 * * [progress]: iteration 1 / 4
0.322 * * * [progress]: picking best candidate
0.324 * * * * [pick]: Picked  #<alt (λ (x) (* (sqrt (- x 1.0)) (sqrt x)))>
0.324 * * * [progress]: localizing error
0.332 * * * [progress]: generating rewritten candidates
0.332 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.345 * * * [progress]: generating series expansions
0.345 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.349 * [approximate]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in (x) around 0
0.350 * [taylor]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in x
0.350 * [taylor]: Taking taylor expansion of (* (- x 1.0) x) in x
0.350 * [taylor]: Taking taylor expansion of (- x 1.0) in x
0.350 * [taylor]: Taking taylor expansion of x in x
0.350 * [taylor]: Taking taylor expansion of 1.0 in x
0.350 * [taylor]: Taking taylor expansion of x in x
0.355 * [taylor]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in x
0.355 * [taylor]: Taking taylor expansion of (* (- x 1.0) x) in x
0.355 * [taylor]: Taking taylor expansion of (- x 1.0) in x
0.355 * [taylor]: Taking taylor expansion of x in x
0.355 * [taylor]: Taking taylor expansion of 1.0 in x
0.355 * [taylor]: Taking taylor expansion of x in x
0.384 * [approximate]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in (x) around 0
0.384 * [taylor]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in x
0.384 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in x
0.384 * [taylor]: Taking taylor expansion of (- (/ 1 x) 1.0) in x
0.384 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.384 * [taylor]: Taking taylor expansion of x in x
0.384 * [taylor]: Taking taylor expansion of 1.0 in x
0.384 * [taylor]: Taking taylor expansion of x in x
0.390 * [taylor]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in x
0.390 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in x
0.390 * [taylor]: Taking taylor expansion of (- (/ 1 x) 1.0) in x
0.390 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.390 * [taylor]: Taking taylor expansion of x in x
0.390 * [taylor]: Taking taylor expansion of 1.0 in x
0.390 * [taylor]: Taking taylor expansion of x in x
0.398 * [approximate]: Taking taylor expansion of (* (sqrt (- (+ 1.0 (/ 1 x)))) (sqrt (/ -1 x))) in (x) around 0
0.398 * [taylor]: Taking taylor expansion of (* (sqrt (- (+ 1.0 (/ 1 x)))) (sqrt (/ -1 x))) in x
0.398 * [taylor]: Taking taylor expansion of (sqrt (- (+ 1.0 (/ 1 x)))) in x
0.398 * [taylor]: Taking taylor expansion of (- (+ 1.0 (/ 1 x))) in x
0.398 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
0.398 * [taylor]: Taking taylor expansion of 1.0 in x
0.398 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.398 * [taylor]: Taking taylor expansion of x in x
0.400 * [taylor]: Taking taylor expansion of (sqrt (/ -1 x)) in x
0.400 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.400 * [taylor]: Taking taylor expansion of -1 in x
0.400 * [taylor]: Taking taylor expansion of x in x
0.402 * [taylor]: Taking taylor expansion of (* (sqrt (- (+ 1.0 (/ 1 x)))) (sqrt (/ -1 x))) in x
0.402 * [taylor]: Taking taylor expansion of (sqrt (- (+ 1.0 (/ 1 x)))) in x
0.402 * [taylor]: Taking taylor expansion of (- (+ 1.0 (/ 1 x))) in x
0.402 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
0.402 * [taylor]: Taking taylor expansion of 1.0 in x
0.402 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.402 * [taylor]: Taking taylor expansion of x in x
0.404 * [taylor]: Taking taylor expansion of (sqrt (/ -1 x)) in x
0.404 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.404 * [taylor]: Taking taylor expansion of -1 in x
0.404 * [taylor]: Taking taylor expansion of x in x
0.431 * * * [progress]: simplifying candidates
0.432 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (* (sqrt (- x 1.0)) (sqrt x)))
  (log1p (* (sqrt (- x 1.0)) (sqrt x)))
  (* (- x 1.0) x)
  (* (sqrt (- x 1.0)) (sqrt x))
  (* (- x 1.0) x)
  (+ (log (sqrt (- x 1.0))) (log (sqrt x)))
  (log (* (sqrt (- x 1.0)) (sqrt x)))
  (exp (* (sqrt (- x 1.0)) (sqrt x)))
  (* (* (* (sqrt (- x 1.0)) (sqrt (- x 1.0))) (sqrt (- x 1.0))) (* (* (sqrt x) (sqrt x)) (sqrt x)))
  (* (cbrt (* (sqrt (- x 1.0)) (sqrt x))) (cbrt (* (sqrt (- x 1.0)) (sqrt x))))
  (cbrt (* (sqrt (- x 1.0)) (sqrt x)))
  (* (* (* (sqrt (- x 1.0)) (sqrt x)) (* (sqrt (- x 1.0)) (sqrt x))) (* (sqrt (- x 1.0)) (sqrt x)))
  (* (- x 1.0) x)
  (sqrt (* (sqrt (- x 1.0)) (sqrt x)))
  (sqrt (* (sqrt (- x 1.0)) (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (- x 1.0)) (* (cbrt (sqrt x)) (cbrt (sqrt x))))
  (* (sqrt (- x 1.0)) (sqrt (* (cbrt x) (cbrt x))))
  (* (sqrt (- x 1.0)) (sqrt (sqrt x)))
  (* (sqrt (- x 1.0)) (sqrt 1))
  (* (sqrt (- x 1.0)) (sqrt (sqrt x)))
  (* (sqrt (- x 1.0)) 1)
  (* (cbrt (sqrt (- x 1.0))) (sqrt x))
  (* (sqrt (cbrt (- x 1.0))) (sqrt x))
  (* (sqrt (sqrt (- x 1.0))) (sqrt x))
  (* (sqrt (- x 1.0)) (sqrt x))
  (* (sqrt (- (sqrt x) (sqrt 1.0))) (sqrt x))
  (* (sqrt (- x 1.0)) (sqrt x))
  (* (sqrt (sqrt (- x 1.0))) (sqrt x))
  (* (sqrt (- x 1.0)) (sqrt x))
  (* (sqrt (- (pow x 3) (pow 1.0 3))) (sqrt x))
  (* (sqrt (- (* x x) (* 1.0 1.0))) (sqrt x))
  (- (+ (* +nan.0 (pow x 2)) (- (+ (* +nan.0 (pow x 3)) (- (* +nan.0 x))))))
  (- x (+ 0.5 (* 0.125 (/ 1 x))))
  (- (+ (* +nan.0 (/ 1 (pow x 2))) (- (+ (* +nan.0 (/ 1 x)) (- +nan.0)))))
0.436 * * [simplify]: iteration  0 :  188  enodes  (cost  226 )
0.439 * * [simplify]: iteration  1 :  635  enodes  (cost  215 )
0.453 * * [simplify]: iteration  2 :  2636  enodes  (cost  210 )
0.508 * * [simplify]: iteration  3 :  5002  enodes  (cost  210 )
0.510 * [simplify]: Simplified to:
   (expm1 (* (sqrt (- x 1.0)) (sqrt x)))
  (log1p (* (sqrt (- x 1.0)) (sqrt x)))
  (* (- x 1.0) x)
  (* (sqrt (- x 1.0)) (sqrt x))
  (* (- x 1.0) x)
  (log (* (sqrt (- x 1.0)) (sqrt x)))
  (log (* (sqrt (- x 1.0)) (sqrt x)))
  (exp (* (sqrt (- x 1.0)) (sqrt x)))
  (pow (* (sqrt (- x 1.0)) (sqrt x)) 3)
  (* (cbrt (* (sqrt (- x 1.0)) (sqrt x))) (cbrt (* (sqrt (- x 1.0)) (sqrt x))))
  (cbrt (* (sqrt (- x 1.0)) (sqrt x)))
  (pow (* (sqrt (- x 1.0)) (sqrt x)) 3)
  (* (- x 1.0) x)
  (sqrt (* (sqrt (- x 1.0)) (sqrt x)))
  (sqrt (* (sqrt (- x 1.0)) (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (sqrt (- x 1.0))) (sqrt (sqrt x)))
  (* (sqrt (- x 1.0)) (* (cbrt (sqrt x)) (cbrt (sqrt x))))
  (* (fabs (cbrt x)) (sqrt (- x 1.0)))
  (* (sqrt (- x 1.0)) (sqrt (sqrt x)))
  (sqrt (- x 1.0))
  (* (sqrt (- x 1.0)) (sqrt (sqrt x)))
  (sqrt (- x 1.0))
  (* (cbrt (sqrt (- x 1.0))) (sqrt x))
  (* (sqrt (cbrt (- x 1.0))) (sqrt x))
  (* (sqrt (sqrt (- x 1.0))) (sqrt x))
  (* (sqrt (- x 1.0)) (sqrt x))
  (* (sqrt (- (sqrt x) (sqrt 1.0))) (sqrt x))
  (* (sqrt (- x 1.0)) (sqrt x))
  (* (sqrt (sqrt (- x 1.0))) (sqrt x))
  (* (sqrt (- x 1.0)) (sqrt x))
  (* (sqrt (- (pow x 3) (pow 1.0 3))) (sqrt x))
  (* (sqrt (- (* x x) (* 1.0 1.0))) (sqrt x))
  (fma (- (pow x 2)) +nan.0 (* +nan.0 (- (pow x 3) x)))
  (- x (fma 0.125 (/ 1 x) 0.5))
  (- (- (/ +nan.0 x) +nan.0) (/ +nan.0 (pow x 2)))
0.510 * * * [progress]: adding candidates to table
0.576 * * [progress]: iteration 2 / 4
0.576 * * * [progress]: picking best candidate
0.579 * * * * [pick]: Picked  #<alt (λ (x) (- x (fma 0.125 (/ 1 x) 0.5)))>
0.579 * * * [progress]: localizing error
0.585 * * * [progress]: generating rewritten candidates
0.585 * * * [progress]: generating series expansions
0.585 * * * [progress]: simplifying candidates
0.585 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.587 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.587 * [simplify]: Simplified to:
   
0.587 * * * [progress]: adding candidates to table
0.587 * * [progress]: iteration 3 / 4
0.587 * * * [progress]: picking best candidate
0.589 * * * * [pick]: Picked  #<alt (λ (x) (sqrt (* (- x 1.0) x)))>
0.589 * * * [progress]: localizing error
0.593 * * * [progress]: generating rewritten candidates
0.593 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.599 * * * [progress]: generating series expansions
0.599 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.599 * [approximate]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in (x) around 0
0.599 * [taylor]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in x
0.599 * [taylor]: Taking taylor expansion of (* (- x 1.0) x) in x
0.599 * [taylor]: Taking taylor expansion of (- x 1.0) in x
0.599 * [taylor]: Taking taylor expansion of x in x
0.599 * [taylor]: Taking taylor expansion of 1.0 in x
0.599 * [taylor]: Taking taylor expansion of x in x
0.606 * [taylor]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in x
0.607 * [taylor]: Taking taylor expansion of (* (- x 1.0) x) in x
0.607 * [taylor]: Taking taylor expansion of (- x 1.0) in x
0.607 * [taylor]: Taking taylor expansion of x in x
0.607 * [taylor]: Taking taylor expansion of 1.0 in x
0.607 * [taylor]: Taking taylor expansion of x in x
0.618 * [approximate]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in (x) around 0
0.618 * [taylor]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in x
0.618 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in x
0.618 * [taylor]: Taking taylor expansion of (- (/ 1 x) 1.0) in x
0.618 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.618 * [taylor]: Taking taylor expansion of x in x
0.618 * [taylor]: Taking taylor expansion of 1.0 in x
0.618 * [taylor]: Taking taylor expansion of x in x
0.623 * [taylor]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in x
0.623 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in x
0.623 * [taylor]: Taking taylor expansion of (- (/ 1 x) 1.0) in x
0.623 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.623 * [taylor]: Taking taylor expansion of x in x
0.623 * [taylor]: Taking taylor expansion of 1.0 in x
0.623 * [taylor]: Taking taylor expansion of x in x
0.631 * [approximate]: Taking taylor expansion of (sqrt (/ (+ 1.0 (/ 1 x)) x)) in (x) around 0
0.631 * [taylor]: Taking taylor expansion of (sqrt (/ (+ 1.0 (/ 1 x)) x)) in x
0.631 * [taylor]: Taking taylor expansion of (/ (+ 1.0 (/ 1 x)) x) in x
0.631 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
0.631 * [taylor]: Taking taylor expansion of 1.0 in x
0.631 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.631 * [taylor]: Taking taylor expansion of x in x
0.631 * [taylor]: Taking taylor expansion of x in x
0.634 * [taylor]: Taking taylor expansion of (sqrt (/ (+ 1.0 (/ 1 x)) x)) in x
0.634 * [taylor]: Taking taylor expansion of (/ (+ 1.0 (/ 1 x)) x) in x
0.634 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
0.634 * [taylor]: Taking taylor expansion of 1.0 in x
0.634 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.634 * [taylor]: Taking taylor expansion of x in x
0.635 * [taylor]: Taking taylor expansion of x in x
0.641 * * * [progress]: simplifying candidates
0.641 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (sqrt (* (- x 1.0) x)))
  (log1p (sqrt (* (- x 1.0) x)))
  (log (sqrt (* (- x 1.0) x)))
  (exp (sqrt (* (- x 1.0) x)))
  (* (cbrt (sqrt (* (- x 1.0) x))) (cbrt (sqrt (* (- x 1.0) x))))
  (cbrt (sqrt (* (- x 1.0) x)))
  (* (* (sqrt (* (- x 1.0) x)) (sqrt (* (- x 1.0) x))) (sqrt (* (- x 1.0) x)))
  (sqrt (- x 1.0))
  (sqrt x)
  (sqrt (* (- (pow x 3) (pow 1.0 3)) x))
  (sqrt (+ (* x x) (+ (* 1.0 1.0) (* x 1.0))))
  (sqrt (* (- (* x x) (* 1.0 1.0)) x))
  (sqrt (+ x 1.0))
  (/ 1 2)
  (/ 1 2)
  (sqrt (sqrt (* (- x 1.0) x)))
  (sqrt (sqrt (* (- x 1.0) x)))
  (- (+ (* +nan.0 (pow x 2)) (- (+ (* +nan.0 (pow x 3)) (- (* +nan.0 x))))))
  (- x (+ 0.5 (* 0.125 (/ 1 x))))
  (- (+ 0.5 (* 0.125 (/ 1 x))) x)
0.644 * * [simplify]: iteration  0 :  118  enodes  (cost  82 )
0.647 * * [simplify]: iteration  1 :  306  enodes  (cost  77 )
0.653 * * [simplify]: iteration  2 :  1115  enodes  (cost  74 )
0.679 * * [simplify]: iteration  3 :  4409  enodes  (cost  73 )
0.805 * * [simplify]: iteration  4 :  5001  enodes  (cost  73 )
0.807 * [simplify]: Simplified to:
   (expm1 (sqrt (* (- x 1.0) x)))
  (log1p (sqrt (* (- x 1.0) x)))
  (log (sqrt (* (- x 1.0) x)))
  (exp (sqrt (* (- x 1.0) x)))
  (* (cbrt (sqrt (* (- x 1.0) x))) (cbrt (sqrt (* (- x 1.0) x))))
  (cbrt (sqrt (* (- x 1.0) x)))
  (pow (sqrt (* (- x 1.0) x)) 3)
  (sqrt (- x 1.0))
  (pow x 1/2)
  (sqrt (* (- (pow x 3) (pow 1.0 3)) x))
  (sqrt (+ (* x x) (+ (* 1.0 1.0) (* x 1.0))))
  (sqrt (* (- (* x x) (* 1.0 1.0)) x))
  (sqrt (+ x 1.0))
  1/2
  1/2
  (sqrt (sqrt (* (- x 1.0) x)))
  (sqrt (sqrt (* (- x 1.0) x)))
  (* +nan.0 (fma (- x) x (- (pow x 3) x)))
  (- x (fma 0.125 (/ 1 x) 0.5))
  (fma 0.125 (/ 1 x) (- 0.5 x))
0.807 * * * [progress]: adding candidates to table
0.834 * [progress]: [Phase 3 of 3] Extracting.
0.834 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (- x (fma 0.125 (/ 1 x) 0.5)))> #<alt (λ (x) (sqrt (* (- x 1.0) x)))>)
0.835 * * * [regime-changes]: Trying 1 branch expressions: (x)
0.835 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (- x (fma 0.125 (/ 1 x) 0.5)))> #<alt (λ (x) (sqrt (* (- x 1.0) x)))>)
0.849 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.850 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- x (fma 0.125 (/ 1 x) 0.5))
0.850 * * [simplify]: iteration  0 :  9  enodes  (cost  3 )
0.850 * * [simplify]: iteration  1 :  9  enodes  (cost  3 )
0.851 * [simplify]: Simplified to:
   (- x (fma 0.125 (/ 1 x) 0.5))
2.132 * [regime-testing]: Baseline error score: 0.2948846723257853
2.132 * [regime-testing]: Oracle error score: 0.0025003125390673834
2.134 * [regime-testing]: End program error score: 0.2948846723257853