0.857 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.310 * * * [progress]: [2/2] Setting up program.
0.313 * [progress]: [Phase 2 of 3] Improving.
0.315 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (sqrt (- x 1.0)) (sqrt x))
0.319 * * [simplify]: iteration  0 :  9  enodes  (cost  4 )
0.321 * * [simplify]: iteration  1 :  10  enodes  (cost  4 )
0.322 * * [simplify]: iteration  2 :  10  enodes  (cost  4 )
0.322 * [simplify]: Simplified to:
   (* (sqrt (- x 1.0)) (sqrt x))
0.324 * * [progress]: iteration 1 / 4
0.324 * * * [progress]: picking best candidate
0.326 * * * * [pick]: Picked  #<alt (λ (x) (* (sqrt (- x 1.0)) (sqrt x)))>
0.326 * * * [progress]: localizing error
0.333 * * * [progress]: generating rewritten candidates
0.333 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.359 * * * [progress]: generating series expansions
0.359 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.364 * [approximate]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in (x) around 0
0.364 * [taylor]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in x
0.364 * [taylor]: Taking taylor expansion of (* (- x 1.0) x) in x
0.364 * [taylor]: Taking taylor expansion of (- x 1.0) in x
0.364 * [taylor]: Taking taylor expansion of x in x
0.365 * [taylor]: Taking taylor expansion of 1.0 in x
0.365 * [taylor]: Taking taylor expansion of x in x
0.370 * [taylor]: Taking taylor expansion of (sqrt (* (- x 1.0) x)) in x
0.370 * [taylor]: Taking taylor expansion of (* (- x 1.0) x) in x
0.370 * [taylor]: Taking taylor expansion of (- x 1.0) in x
0.370 * [taylor]: Taking taylor expansion of x in x
0.370 * [taylor]: Taking taylor expansion of 1.0 in x
0.370 * [taylor]: Taking taylor expansion of x in x
0.382 * [approximate]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in (x) around 0
0.383 * [taylor]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in x
0.383 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in x
0.383 * [taylor]: Taking taylor expansion of (- (/ 1 x) 1.0) in x
0.383 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.383 * [taylor]: Taking taylor expansion of x in x
0.383 * [taylor]: Taking taylor expansion of 1.0 in x
0.383 * [taylor]: Taking taylor expansion of x in x
0.388 * [taylor]: Taking taylor expansion of (sqrt (/ (- (/ 1 x) 1.0) x)) in x
0.388 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) 1.0) x) in x
0.388 * [taylor]: Taking taylor expansion of (- (/ 1 x) 1.0) in x
0.388 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.388 * [taylor]: Taking taylor expansion of x in x
0.388 * [taylor]: Taking taylor expansion of 1.0 in x
0.388 * [taylor]: Taking taylor expansion of x in x
0.397 * [approximate]: Taking taylor expansion of (* (sqrt (- (+ 1.0 (/ 1 x)))) (sqrt (/ -1 x))) in (x) around 0
0.397 * [taylor]: Taking taylor expansion of (* (sqrt (- (+ 1.0 (/ 1 x)))) (sqrt (/ -1 x))) in x
0.397 * [taylor]: Taking taylor expansion of (sqrt (- (+ 1.0 (/ 1 x)))) in x
0.397 * [taylor]: Taking taylor expansion of (- (+ 1.0 (/ 1 x))) in x
0.397 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
0.397 * [taylor]: Taking taylor expansion of 1.0 in x
0.397 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.397 * [taylor]: Taking taylor expansion of x in x
0.399 * [taylor]: Taking taylor expansion of (sqrt (/ -1 x)) in x
0.399 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.399 * [taylor]: Taking taylor expansion of -1 in x
0.399 * [taylor]: Taking taylor expansion of x in x
0.400 * [taylor]: Taking taylor expansion of (* (sqrt (- (+ 1.0 (/ 1 x)))) (sqrt (/ -1 x))) in x
0.400 * [taylor]: Taking taylor expansion of (sqrt (- (+ 1.0 (/ 1 x)))) in x
0.400 * [taylor]: Taking taylor expansion of (- (+ 1.0 (/ 1 x))) in x
0.400 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
0.400 * [taylor]: Taking taylor expansion of 1.0 in x
0.400 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.400 * [taylor]: Taking taylor expansion of x in x
0.402 * [taylor]: Taking taylor expansion of (sqrt (/ -1 x)) in x
0.402 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.402 * [taylor]: Taking taylor expansion of -1 in x
0.402 * [taylor]: Taking taylor expansion of x in x
0.430 * * * [progress]: simplifying candidates
0.431 * [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))
  (- (+ (* +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)))))
0.434 * * [simplify]: iteration  0 :  181  enodes  (cost  216 )
0.438 * * [simplify]: iteration  1 :  610  enodes  (cost  206 )
0.450 * * [simplify]: iteration  2 :  2471  enodes  (cost  201 )
0.503 * * [simplify]: iteration  3 :  5002  enodes  (cost  201 )
0.504 * [simplify]: Simplified to:
   (* (- 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))
  (* +nan.0 (+ (- (pow x 2)) (- (pow x 3) x)))
  (- x (+ 0.5 (* 0.125 (/ 1 x))))
  (- (- (/ +nan.0 x) +nan.0) (/ +nan.0 (pow x 2)))
0.504 * * * [progress]: adding candidates to table
0.571 * * [progress]: iteration 2 / 4
0.571 * * * [progress]: picking best candidate
0.572 * * * * [pick]: Picked  #<alt (λ (x) (- x (+ 0.5 (* 0.125 (/ 1 x)))))>
0.572 * * * [progress]: localizing error
0.578 * * * [progress]: generating rewritten candidates
0.578 * * * [progress]: generating series expansions
0.578 * * * [progress]: simplifying candidates
0.578 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.580 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.580 * [simplify]: Simplified to:
   
0.580 * * * [progress]: adding candidates to table
0.580 * [progress]: [Phase 3 of 3] Extracting.
0.581 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (- x (+ 0.5 (* 0.125 (/ 1 x)))))> #<alt (λ (x) (* (sqrt (- x 1.0)) (sqrt x)))>)
0.581 * * * [regime-changes]: Trying 2 branch expressions: ((* (sqrt (- x 1.0)) (sqrt x)) x)
0.582 * * * * [regimes]: Trying to branch on (* (sqrt (- x 1.0)) (sqrt x)) from (#<alt (λ (x) (- x (+ 0.5 (* 0.125 (/ 1 x)))))> #<alt (λ (x) (* (sqrt (- x 1.0)) (sqrt x)))>)
0.599 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (- x (+ 0.5 (* 0.125 (/ 1 x)))))> #<alt (λ (x) (* (sqrt (- x 1.0)) (sqrt x)))>)
0.609 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
0.609 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (sqrt (- x 1.0)) (sqrt x))
0.610 * * [simplify]: iteration  0 :  7  enodes  (cost  4 )
0.610 * * [simplify]: iteration  1 :  7  enodes  (cost  4 )
0.610 * [simplify]: Simplified to:
   (* (sqrt (- x 1.0)) (sqrt x))
2.620 * [regime-testing]: Baseline error score: 0.4976872109013627
2.620 * [regime-testing]: Oracle error score: 0.005500687585948244
2.622 * [regime-testing]: End program error score: 0.4976872109013627