12.128 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.012 * * * [progress]: [2/2] Setting up program.
0.014 * [progress]: [Phase 2 of 3] Improving.
0.014 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (- 1.0 (* x 0.5)))
0.016 * * [simplify]: iteration  0 :  8  enodes  (cost  7 )
0.016 * * [simplify]: iteration  1 :  8  enodes  (cost  7 )
0.016 * [simplify]: Simplified to:
   (* x (- 1.0 (* x 0.5)))
0.017 * * [progress]: iteration 1 / 4
0.017 * * * [progress]: picking best candidate
0.018 * * * * [pick]: Picked  #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>
0.018 * * * [progress]: localizing error
0.022 * * * [progress]: generating rewritten candidates
0.022 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.028 * * * [progress]: generating series expansions
0.028 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.028 * [approximate]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in (x) around 0
0.028 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.028 * [taylor]: Taking taylor expansion of x in x
0.028 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.028 * [taylor]: Taking taylor expansion of 1.0 in x
0.028 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.028 * [taylor]: Taking taylor expansion of 0.5 in x
0.028 * [taylor]: Taking taylor expansion of x in x
0.028 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.028 * [taylor]: Taking taylor expansion of x in x
0.028 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.028 * [taylor]: Taking taylor expansion of 1.0 in x
0.028 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.028 * [taylor]: Taking taylor expansion of 0.5 in x
0.028 * [taylor]: Taking taylor expansion of x in x
0.030 * [approximate]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in (x) around 0
0.030 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.030 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.030 * [taylor]: Taking taylor expansion of 1.0 in x
0.030 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.030 * [taylor]: Taking taylor expansion of 0.5 in x
0.030 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.030 * [taylor]: Taking taylor expansion of x in x
0.030 * [taylor]: Taking taylor expansion of x in x
0.030 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.030 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.030 * [taylor]: Taking taylor expansion of 1.0 in x
0.030 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.030 * [taylor]: Taking taylor expansion of 0.5 in x
0.030 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.030 * [taylor]: Taking taylor expansion of x in x
0.030 * [taylor]: Taking taylor expansion of x in x
0.032 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in (x) around 0
0.032 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.032 * [taylor]: Taking taylor expansion of -1 in x
0.032 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.032 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.032 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.032 * [taylor]: Taking taylor expansion of 0.5 in x
0.032 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.032 * [taylor]: Taking taylor expansion of x in x
0.032 * [taylor]: Taking taylor expansion of 1.0 in x
0.032 * [taylor]: Taking taylor expansion of x in x
0.032 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.032 * [taylor]: Taking taylor expansion of -1 in x
0.032 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.032 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.032 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.032 * [taylor]: Taking taylor expansion of 0.5 in x
0.032 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.032 * [taylor]: Taking taylor expansion of x in x
0.032 * [taylor]: Taking taylor expansion of 1.0 in x
0.032 * [taylor]: Taking taylor expansion of x in x
0.034 * * * [progress]: simplifying candidates
0.034 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (- 1.0 (* x 0.5)))
  (+ (log x) (log (- 1.0 (* x 0.5))))
  (log (* x (- 1.0 (* x 0.5))))
  (exp (* x (- 1.0 (* x 0.5))))
  (* (* (* x x) x) (* (* (- 1.0 (* x 0.5)) (- 1.0 (* x 0.5))) (- 1.0 (* x 0.5))))
  (* (cbrt (* x (- 1.0 (* x 0.5)))) (cbrt (* x (- 1.0 (* x 0.5)))))
  (cbrt (* x (- 1.0 (* x 0.5))))
  (* (* (* x (- 1.0 (* x 0.5))) (* x (- 1.0 (* x 0.5)))) (* x (- 1.0 (* x 0.5))))
  (sqrt (* x (- 1.0 (* x 0.5))))
  (sqrt (* x (- 1.0 (* x 0.5))))
  (* (sqrt x) (sqrt (- 1.0 (* x 0.5))))
  (* (sqrt x) (sqrt (- 1.0 (* x 0.5))))
  (* x 1.0)
  (* x (neg (* x 0.5)))
  (* 1.0 x)
  (* (neg (* x 0.5)) x)
  (* x (* (cbrt (- 1.0 (* x 0.5))) (cbrt (- 1.0 (* x 0.5)))))
  (* x (sqrt (- 1.0 (* x 0.5))))
  (* x 1)
  (* (cbrt x) (- 1.0 (* x 0.5)))
  (* (sqrt x) (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
  (* x (- (pow 1.0 3) (pow (* x 0.5) 3)))
  (* x (- (* 1.0 1.0) (* (* x 0.5) (* x 0.5))))
  (- (* 1.0 x) (* 0.5 (pow x 2)))
  (- (* 1.0 x) (* 0.5 (pow x 2)))
  (- (* 1.0 x) (* 0.5 (pow x 2)))
0.085 * * [simplify]: iteration  0 :  4944  enodes  (cost  218 )
0.085 * * [simplify]: iteration  1 :  4944  enodes  (cost  218 )
0.087 * [simplify]: Simplified to:
   (* x (- 1.0 (* x 0.5)))
  (log (* x (- 1.0 (* x 0.5))))
  (log (* x (- 1.0 (* x 0.5))))
  (pow (exp x) (- 1.0 (* x 0.5)))
  (pow (* x (- 1.0 (* x 0.5))) 3)
  (* (cbrt (* x (- 1.0 (* x 0.5)))) (cbrt (* x (- 1.0 (* x 0.5)))))
  (cbrt (* x (- 1.0 (* x 0.5))))
  (pow (* x (- 1.0 (* x 0.5))) 3)
  (sqrt (* x (- 1.0 (* x 0.5))))
  (sqrt (* x (- 1.0 (* x 0.5))))
  (* (sqrt x) (sqrt (- 1.0 (* x 0.5))))
  (* (sqrt x) (sqrt (- 1.0 (* x 0.5))))
  (* x 1.0)
  (* x (* x (neg 0.5)))
  (* x 1.0)
  (* x (* x (neg 0.5)))
  (* x (* (cbrt (- 1.0 (* x 0.5))) (cbrt (- 1.0 (* x 0.5)))))
  (* x (sqrt (- 1.0 (* x 0.5))))
  x
  (* (- 1.0 (* x 0.5)) (cbrt x))
  (* (- 1.0 (* x 0.5)) (sqrt x))
  (* x (- 1.0 (* x 0.5)))
  (* x (- (pow 1.0 3) (pow (* x 0.5) 3)))
  (* x (- (* 1.0 1.0) (* x (* x (* 0.5 0.5)))))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
0.087 * * * [progress]: adding candidates to table
0.113 * * [progress]: iteration 2 / 4
0.113 * * * [progress]: picking best candidate
0.115 * * * * [pick]: Picked  #<alt (λ (x) (+ (* x 1.0) (* x (* x (neg 0.5)))))>
0.115 * * * [progress]: localizing error
0.121 * * * [progress]: generating rewritten candidates
0.121 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.124 * * * [progress]: generating series expansions
0.124 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.125 * [approximate]: Taking taylor expansion of (- (* 1.0 x) (* 0.5 (pow x 2))) in (x) around 0
0.125 * [taylor]: Taking taylor expansion of (- (* 1.0 x) (* 0.5 (pow x 2))) in x
0.125 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
0.125 * [taylor]: Taking taylor expansion of 1.0 in x
0.125 * [taylor]: Taking taylor expansion of x in x
0.125 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in x
0.125 * [taylor]: Taking taylor expansion of 0.5 in x
0.125 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.125 * [taylor]: Taking taylor expansion of x in x
0.125 * [taylor]: Taking taylor expansion of (- (* 1.0 x) (* 0.5 (pow x 2))) in x
0.125 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
0.125 * [taylor]: Taking taylor expansion of 1.0 in x
0.125 * [taylor]: Taking taylor expansion of x in x
0.125 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in x
0.125 * [taylor]: Taking taylor expansion of 0.5 in x
0.125 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.125 * [taylor]: Taking taylor expansion of x in x
0.126 * [approximate]: Taking taylor expansion of (- (* 1.0 (/ 1 x)) (* 0.5 (/ 1 (pow x 2)))) in (x) around 0
0.126 * [taylor]: Taking taylor expansion of (- (* 1.0 (/ 1 x)) (* 0.5 (/ 1 (pow x 2)))) in x
0.126 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.126 * [taylor]: Taking taylor expansion of 1.0 in x
0.126 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.126 * [taylor]: Taking taylor expansion of x in x
0.126 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.126 * [taylor]: Taking taylor expansion of 0.5 in x
0.126 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.126 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.126 * [taylor]: Taking taylor expansion of x in x
0.126 * [taylor]: Taking taylor expansion of (- (* 1.0 (/ 1 x)) (* 0.5 (/ 1 (pow x 2)))) in x
0.126 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.126 * [taylor]: Taking taylor expansion of 1.0 in x
0.126 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.126 * [taylor]: Taking taylor expansion of x in x
0.127 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.127 * [taylor]: Taking taylor expansion of 0.5 in x
0.127 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.127 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.127 * [taylor]: Taking taylor expansion of x in x
0.129 * [approximate]: Taking taylor expansion of (neg (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x)))) in (x) around 0
0.129 * [taylor]: Taking taylor expansion of (neg (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x)))) in x
0.129 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x))) in x
0.129 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.129 * [taylor]: Taking taylor expansion of 0.5 in x
0.129 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.129 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.129 * [taylor]: Taking taylor expansion of x in x
0.129 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.129 * [taylor]: Taking taylor expansion of 1.0 in x
0.129 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.129 * [taylor]: Taking taylor expansion of x in x
0.129 * [taylor]: Taking taylor expansion of (neg (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x)))) in x
0.129 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x))) in x
0.129 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.129 * [taylor]: Taking taylor expansion of 0.5 in x
0.129 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.129 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.129 * [taylor]: Taking taylor expansion of x in x
0.129 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.129 * [taylor]: Taking taylor expansion of 1.0 in x
0.129 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.129 * [taylor]: Taking taylor expansion of x in x
0.131 * * * [progress]: simplifying candidates
0.131 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (exp (* x 1.0)) (exp (* x (* x (neg 0.5)))))
  (log (+ (* x 1.0) (* x (* x (neg 0.5)))))
  (exp (+ (* x 1.0) (* x (* x (neg 0.5)))))
  (* (cbrt (+ (* x 1.0) (* x (* x (neg 0.5))))) (cbrt (+ (* x 1.0) (* x (* x (neg 0.5))))))
  (cbrt (+ (* x 1.0) (* x (* x (neg 0.5)))))
  (* (* (+ (* x 1.0) (* x (* x (neg 0.5)))) (+ (* x 1.0) (* x (* x (neg 0.5))))) (+ (* x 1.0) (* x (* x (neg 0.5)))))
  (sqrt (+ (* x 1.0) (* x (* x (neg 0.5)))))
  (sqrt (+ (* x 1.0) (* x (* x (neg 0.5)))))
  (+ (pow (* x 1.0) 3) (pow (* x (* x (neg 0.5))) 3))
  (+ (* (* x 1.0) (* x 1.0)) (- (* (* x (* x (neg 0.5))) (* x (* x (neg 0.5)))) (* (* x 1.0) (* x (* x (neg 0.5))))))
  (- (* (* x 1.0) (* x 1.0)) (* (* x (* x (neg 0.5))) (* x (* x (neg 0.5)))))
  (- (* x 1.0) (* x (* x (neg 0.5))))
  (+ 1.0 (* x (neg 0.5)))
  (- (* 1.0 x) (* 0.5 (pow x 2)))
  (- (* 1.0 x) (* 0.5 (pow x 2)))
  (- (* 1.0 x) (* 0.5 (pow x 2)))
0.164 * * [simplify]: iteration  0 :  5441  enodes  (cost  166 )
0.166 * [simplify]: Simplified to:
   (pow (exp x) (+ 1.0 (* x (neg 0.5))))
  (log (* x (+ 1.0 (* x (neg 0.5)))))
  (pow (exp x) (+ 1.0 (* x (neg 0.5))))
  (* (cbrt (* x (+ 1.0 (* x (neg 0.5))))) (cbrt (* x (+ 1.0 (* x (neg 0.5))))))
  (cbrt (* x (+ 1.0 (* x (neg 0.5)))))
  (pow (* x (+ 1.0 (* x (neg 0.5)))) 3)
  (sqrt (* x (+ 1.0 (* x (neg 0.5)))))
  (sqrt (* x (+ 1.0 (* x (neg 0.5)))))
  (+ (pow (* x 1.0) 3) (* (pow x 6) (pow (neg 0.5) 3)))
  (* x (* x (+ (* 1.0 1.0) (* 0.5 (neg (* x (- (* x (neg 0.5)) 1.0)))))))
  (- (* x (* x (* 1.0 1.0))) (* (pow x 4) (* 0.5 0.5)))
  (* x (- 1.0 (* x (neg 0.5))))
  (+ 1.0 (* x (neg 0.5)))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
0.166 * * * [progress]: adding candidates to table
0.186 * [progress]: [Phase 3 of 3] Extracting.
0.186 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (+ (* x 1.0) (* x (* x (neg 0.5)))))> #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>)
0.186 * * * [regime-changes]: Trying 2 branch expressions: ((* x (- 1.0 (* x 0.5))) x)
0.186 * * * * [regimes]: Trying to branch on (* x (- 1.0 (* x 0.5))) from (#<alt (λ (x) (+ (* x 1.0) (* x (* x (neg 0.5)))))> #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>)
0.210 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (+ (* x 1.0) (* x (* x (neg 0.5)))))> #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>)
0.231 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.232 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* x 1.0) (* x (* x (neg 0.5))))
0.232 * * [simplify]: iteration  0 :  23  enodes  (cost  10 )
0.232 * * [simplify]: iteration  1 :  23  enodes  (cost  10 )
0.233 * [simplify]: Simplified to:
   (+ (* x 1.0) (* x (* x (neg 0.5))))
0.663 * [regime-testing]: End program error score: 0.008727010241537395