1.164 * [progress]: [Phase 1 of 3] Setting up.
0.003 * * * [progress]: [1/2] Preparing points
0.426 * * * [progress]: [2/2] Setting up program.
0.434 * [progress]: [Phase 2 of 3] Improving.
0.438 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (sqrt (- x 1.0)) (sqrt x))
1.248 * * [simplify]: iteration  0 :  71  enodes  (cost  7 )
1.248 * * [simplify]: iteration  1 :  71  enodes  (cost  7 )
1.249 * [simplify]: Simplified to:
   (* (sqrt (- x 1.0)) (sqrt x))
1.252 * * [progress]: iteration 1 / 4
1.252 * * * [progress]: picking best candidate
1.258 * * * * [pick]: Picked  #<alt (λ (x) (* (sqrt (- x 1.0)) (sqrt x)))>
1.258 * * * [progress]: localizing error
1.272 * * * [progress]: generating rewritten candidates
1.272 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
1.298 * * * [progress]: generating series expansions
1.299 * * * * [progress]: [ 1 / 1 ] generating series at (2)
1.306 * [approximate]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in (x) around 0
1.307 * [taylor]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in x
1.307 * [taylor]: Taking taylor expansion of (* (- x 1.0) x) in x
1.307 * [taylor]: Taking taylor expansion of (- x 1.0) in x
1.307 * [taylor]: Taking taylor expansion of x in x
1.307 * [taylor]: Taking taylor expansion of 1.0 in x
1.308 * [taylor]: Taking taylor expansion of x in x
1.309 * [taylor]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in x
1.309 * [taylor]: Taking taylor expansion of (* (- x 1.0) x) in x
1.309 * [taylor]: Taking taylor expansion of (- x 1.0) in x
1.309 * [taylor]: Taking taylor expansion of x in x
1.309 * [taylor]: Taking taylor expansion of 1.0 in x
1.309 * [taylor]: Taking taylor expansion of x in x
1.316 * [approximate]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in (x) around 0
1.316 * [taylor]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in x
1.316 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in x
1.316 * [taylor]: Taking taylor expansion of (- (/ 1 x) 1.0) in x
1.316 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.316 * [taylor]: Taking taylor expansion of x in x
1.316 * [taylor]: Taking taylor expansion of 1.0 in x
1.316 * [taylor]: Taking taylor expansion of x in x
1.317 * [taylor]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in x
1.317 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in x
1.317 * [taylor]: Taking taylor expansion of (- (/ 1 x) 1.0) in x
1.317 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.317 * [taylor]: Taking taylor expansion of x in x
1.317 * [taylor]: Taking taylor expansion of 1.0 in x
1.318 * [taylor]: Taking taylor expansion of x in x
1.319 * [approximate]: Taking taylor expansion of (* (sqrt (neg (+ 1.0 (/ 1 x)))) (sqrt (/ -1 x))) in (x) around 0
1.319 * [taylor]: Taking taylor expansion of (* (sqrt (neg (+ 1.0 (/ 1 x)))) (sqrt (/ -1 x))) in x
1.319 * [taylor]: Taking taylor expansion of (sqrt (neg (+ 1.0 (/ 1 x)))) in x
1.319 * [taylor]: Taking taylor expansion of (neg (+ 1.0 (/ 1 x))) in x
1.319 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
1.319 * [taylor]: Taking taylor expansion of 1.0 in x
1.319 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.319 * [taylor]: Taking taylor expansion of x in x
1.319 * [taylor]: Taking taylor expansion of (sqrt (/ -1 x)) in x
1.319 * [taylor]: Taking taylor expansion of (/ -1 x) in x
1.319 * [taylor]: Taking taylor expansion of -1 in x
1.319 * [taylor]: Taking taylor expansion of x in x
1.319 * [taylor]: Taking taylor expansion of (* (sqrt (neg (+ 1.0 (/ 1 x)))) (sqrt (/ -1 x))) in x
1.319 * [taylor]: Taking taylor expansion of (sqrt (neg (+ 1.0 (/ 1 x)))) in x
1.319 * [taylor]: Taking taylor expansion of (neg (+ 1.0 (/ 1 x))) in x
1.319 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
1.319 * [taylor]: Taking taylor expansion of 1.0 in x
1.319 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.320 * [taylor]: Taking taylor expansion of x in x
1.320 * [taylor]: Taking taylor expansion of (sqrt (/ -1 x)) in x
1.320 * [taylor]: Taking taylor expansion of (/ -1 x) in x
1.320 * [taylor]: Taking taylor expansion of -1 in x
1.320 * [taylor]: Taking taylor expansion of x in x
1.327 * * * [progress]: simplifying candidates
1.329 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (- 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))
  (- (+ (* 2 (* (pow x 3) (pow NAN 5))) (+ (* x NAN) (* (pow x 2) NAN))) (+ (* (pow x 2) (pow NAN 3)) (* 2 (* (pow x 3) (pow NAN 3)))))
  (- x (+ 0.5 (* 0.125 (/ 1 x))))
  (- (+ (* 3.0 (/ (pow NAN 4) (pow x 2))) (+ (* 4 (/ (pow NAN 6) (pow x 2))) (pow NAN 2))) (+ (* 1.0 (/ (pow NAN 2) x)) (* 2 (/ (pow NAN 4) x))))
1.402 * * [simplify]: iteration  0 :  5045  enodes  (cost  370 )
1.405 * [simplify]: Simplified to:
   (* x (- x 1.0))
  (* (sqrt (- x 1.0)) (sqrt x))
  (* x (- x 1.0))
  (log (* (sqrt (- x 1.0)) (sqrt x)))
  (log (* (sqrt (- x 1.0)) (sqrt x)))
  (pow (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 (- x 1.0))
  (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)) (fabs (cbrt x)))
  (* (sqrt (- x 1.0)) (sqrt (sqrt x)))
  (sqrt (- x 1.0))
  (* (sqrt (- x 1.0)) (sqrt (sqrt x)))
  (sqrt (- x 1.0))
  (* (sqrt x) (cbrt (sqrt (- x 1.0))))
  (* (sqrt x) (sqrt (cbrt (- x 1.0))))
  (* (sqrt x) (sqrt (sqrt (- x 1.0))))
  (* (sqrt (- x 1.0)) (sqrt x))
  (* (sqrt x) (sqrt (- (sqrt x) (sqrt 1.0))))
  (* (sqrt (- x 1.0)) (sqrt x))
  (* (sqrt x) (sqrt (sqrt (- x 1.0))))
  (* (sqrt (- x 1.0)) (sqrt x))
  (* (sqrt x) (sqrt (- (pow x 3) (pow 1.0 3))))
  (* (sqrt x) (sqrt (- (* x x) (* 1.0 1.0))))
  (- (* x (+ NAN (* x (- NAN (pow NAN 3))))) (* (* (pow x 3) 2) (- (pow NAN 3) (pow NAN 5))))
  (- x (+ 0.5 (/ 0.125 x)))
  (+ (* 4 (/ (pow NAN 6) (* x x))) (+ (* NAN NAN) (- (* (/ (pow NAN 4) x) (+ (/ 3.0 x) -2)) (* 1.0 (* (/ NAN x) NAN)))))
1.406 * * * [progress]: adding candidates to table
1.520 * * [progress]: iteration 2 / 4
1.521 * * * [progress]: picking best candidate
1.528 * * * * [pick]: Picked  #<alt (λ (x) (- x (+ 0.5 (/ 0.125 x))))>
1.528 * * * [progress]: localizing error
1.537 * * * [progress]: generating rewritten candidates
1.537 * * * [progress]: generating series expansions
1.537 * * * [progress]: simplifying candidates
1.537 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
1.546 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
1.546 * [simplify]: Simplified to:
   
1.546 * * * [progress]: adding candidates to table
1.546 * * [progress]: iteration 3 / 4
1.546 * * * [progress]: picking best candidate
1.551 * * * * [pick]: Picked  #<alt (λ (x) (sqrt (* x (- x 1.0))))>
1.551 * * * [progress]: localizing error
1.560 * * * [progress]: generating rewritten candidates
1.560 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
1.570 * * * [progress]: generating series expansions
1.570 * * * * [progress]: [ 1 / 1 ] generating series at (2)
1.570 * [approximate]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in (x) around 0
1.570 * [taylor]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in x
1.570 * [taylor]: Taking taylor expansion of (* (- x 1.0) x) in x
1.570 * [taylor]: Taking taylor expansion of (- x 1.0) in x
1.570 * [taylor]: Taking taylor expansion of x in x
1.571 * [taylor]: Taking taylor expansion of 1.0 in x
1.571 * [taylor]: Taking taylor expansion of x in x
1.571 * [taylor]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in x
1.571 * [taylor]: Taking taylor expansion of (* (- x 1.0) x) in x
1.571 * [taylor]: Taking taylor expansion of (- x 1.0) in x
1.571 * [taylor]: Taking taylor expansion of x in x
1.571 * [taylor]: Taking taylor expansion of 1.0 in x
1.571 * [taylor]: Taking taylor expansion of x in x
1.573 * [approximate]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in (x) around 0
1.574 * [taylor]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in x
1.574 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in x
1.574 * [taylor]: Taking taylor expansion of (- (/ 1 x) 1.0) in x
1.574 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.574 * [taylor]: Taking taylor expansion of x in x
1.574 * [taylor]: Taking taylor expansion of 1.0 in x
1.574 * [taylor]: Taking taylor expansion of x in x
1.574 * [taylor]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in x
1.574 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in x
1.574 * [taylor]: Taking taylor expansion of (- (/ 1 x) 1.0) in x
1.574 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.574 * [taylor]: Taking taylor expansion of x in x
1.574 * [taylor]: Taking taylor expansion of 1.0 in x
1.574 * [taylor]: Taking taylor expansion of x in x
1.575 * [approximate]: Taking taylor expansion of (sqrt (/ (+ 1.0 (/ 1 x)) x)) in (x) around 0
1.575 * [taylor]: Taking taylor expansion of (sqrt (/ (+ 1.0 (/ 1 x)) x)) in x
1.575 * [taylor]: Taking taylor expansion of (/ (+ 1.0 (/ 1 x)) x) in x
1.575 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
1.576 * [taylor]: Taking taylor expansion of 1.0 in x
1.576 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.576 * [taylor]: Taking taylor expansion of x in x
1.576 * [taylor]: Taking taylor expansion of x in x
1.576 * [taylor]: Taking taylor expansion of (sqrt (/ (+ 1.0 (/ 1 x)) x)) in x
1.576 * [taylor]: Taking taylor expansion of (/ (+ 1.0 (/ 1 x)) x) in x
1.576 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
1.576 * [taylor]: Taking taylor expansion of 1.0 in x
1.576 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.576 * [taylor]: Taking taylor expansion of x in x
1.576 * [taylor]: Taking taylor expansion of x in x
1.577 * * * [progress]: simplifying candidates
1.578 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (log (sqrt (* x (- x 1.0))))
  (exp (sqrt (* x (- x 1.0))))
  (* (cbrt (sqrt (* x (- x 1.0)))) (cbrt (sqrt (* x (- x 1.0)))))
  (cbrt (sqrt (* x (- x 1.0))))
  (* (* (sqrt (* x (- x 1.0))) (sqrt (* x (- x 1.0)))) (sqrt (* x (- x 1.0))))
  (sqrt x)
  (sqrt (- x 1.0))
  (sqrt (* x (- (pow x 3) (pow 1.0 3))))
  (sqrt (+ (* x x) (+ (* 1.0 1.0) (* x 1.0))))
  (sqrt (* x (- (* x x) (* 1.0 1.0))))
  (sqrt (+ x 1.0))
  (/ 1 2)
  (/ 1 2)
  (sqrt (sqrt (* x (- x 1.0))))
  (sqrt (sqrt (* x (- x 1.0))))
  (- (+ (* 2 (* (pow x 3) (pow NAN 5))) (+ (* x NAN) (* (pow x 2) NAN))) (+ (* (pow x 2) (pow NAN 3)) (* 2 (* (pow x 3) (pow NAN 3)))))
  (- x (+ 0.5 (* 0.125 (/ 1 x))))
  (- (+ 0.5 (* 0.125 (/ 1 x))) x)
1.668 * * [simplify]: iteration  0 :  5536  enodes  (cost  139 )
1.671 * [simplify]: Simplified to:
   (log (sqrt (* x (- x 1.0))))
  (exp (sqrt (* x (- x 1.0))))
  (* (cbrt (sqrt (* x (- x 1.0)))) (cbrt (sqrt (* x (- x 1.0)))))
  (cbrt (sqrt (* x (- x 1.0))))
  (pow (sqrt (* x (- x 1.0))) 3)
  (sqrt x)
  (sqrt (- x 1.0))
  (sqrt (- (pow x 4) (* x (pow 1.0 3))))
  (sqrt (+ (* x x) (* 1.0 (+ x 1.0))))
  (sqrt (- (pow x 3) (* x (* 1.0 1.0))))
  (sqrt (+ x 1.0))
  1/2
  1/2
  (sqrt (sqrt (* x (- x 1.0))))
  (sqrt (sqrt (* x (- x 1.0))))
  (+ (* x (+ NAN (* x (- NAN (pow NAN 3))))) (* (* (pow x 3) 2) (- (pow NAN 5) (pow NAN 3))))
  (- x (+ 0.5 (/ 0.125 x)))
  (+ 0.5 (- (/ 0.125 x) x))
1.671 * * * [progress]: adding candidates to table
1.717 * [progress]: [Phase 3 of 3] Extracting.
1.718 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (- x (+ 0.5 (/ 0.125 x))))> #<alt (λ (x) (sqrt (* x (- x 1.0))))>)
1.719 * * * [regime-changes]: Trying 1 branch expressions: (x)
1.720 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (- x (+ 0.5 (/ 0.125 x))))> #<alt (λ (x) (sqrt (* x (- x 1.0))))>)
1.779 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
1.780 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- x (+ 0.5 (/ 0.125 x)))
1.782 * * [simplify]: iteration  0 :  40  enodes  (cost  7 )
1.782 * * [simplify]: iteration  1 :  40  enodes  (cost  7 )
1.782 * [simplify]: Simplified to:
   (- x (+ 0.5 (/ 0.125 x)))
4.690 * [regime-testing]: End program error score: 0.40137827840308254