6.110 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.015 * * * [progress]: [2/2] Setting up program.
0.017 * [progress]: [Phase 2 of 3] Improving.
0.017 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (- 1.0 (* x 0.5)))
0.026 * * [simplify]: iteration  0 :  228  enodes  (cost  7 )
0.026 * * [simplify]: iteration  1 :  228  enodes  (cost  7 )
0.027 * [simplify]: Simplified to:
   (* x (- 1.0 (* x 0.5)))
0.027 * * [progress]: iteration 1 / 4
0.027 * * * [progress]: picking best candidate
0.029 * * * * [pick]: Picked  #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>
0.029 * * * [progress]: localizing error
0.033 * * * [progress]: generating rewritten candidates
0.033 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.038 * * * [progress]: generating series expansions
0.038 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.039 * [approximate]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in (x) around 0
0.039 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.039 * [taylor]: Taking taylor expansion of x in x
0.039 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.039 * [taylor]: Taking taylor expansion of 1.0 in x
0.039 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.039 * [taylor]: Taking taylor expansion of 0.5 in x
0.039 * [taylor]: Taking taylor expansion of x in x
0.039 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.039 * [taylor]: Taking taylor expansion of x in x
0.039 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.039 * [taylor]: Taking taylor expansion of 1.0 in x
0.039 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.039 * [taylor]: Taking taylor expansion of 0.5 in x
0.039 * [taylor]: Taking taylor expansion of x in x
0.040 * [approximate]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in (x) around 0
0.040 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.040 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.040 * [taylor]: Taking taylor expansion of 1.0 in x
0.040 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.040 * [taylor]: Taking taylor expansion of 0.5 in x
0.040 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.040 * [taylor]: Taking taylor expansion of x in x
0.040 * [taylor]: Taking taylor expansion of x in x
0.040 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.040 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.040 * [taylor]: Taking taylor expansion of 1.0 in x
0.040 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.040 * [taylor]: Taking taylor expansion of 0.5 in x
0.040 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.040 * [taylor]: Taking taylor expansion of x in x
0.040 * [taylor]: Taking taylor expansion of x in x
0.042 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in (x) around 0
0.042 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.042 * [taylor]: Taking taylor expansion of -1 in x
0.042 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.042 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.042 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.042 * [taylor]: Taking taylor expansion of 0.5 in x
0.042 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.042 * [taylor]: Taking taylor expansion of x in x
0.042 * [taylor]: Taking taylor expansion of 1.0 in x
0.042 * [taylor]: Taking taylor expansion of x in x
0.042 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.042 * [taylor]: Taking taylor expansion of -1 in x
0.042 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.042 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.042 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.042 * [taylor]: Taking taylor expansion of 0.5 in x
0.042 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.042 * [taylor]: Taking taylor expansion of x in x
0.042 * [taylor]: Taking taylor expansion of 1.0 in x
0.042 * [taylor]: Taking taylor expansion of x in x
0.044 * * * [progress]: simplifying candidates
0.045 * [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)))
0.084 * * [simplify]: iteration  0 :  4987  enodes  (cost  218 )
0.084 * * [simplify]: iteration  1 :  4987  enodes  (cost  218 )
0.085 * [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)) (* 0.5 (* 0.5 (pow x 3))))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
0.085 * * * [progress]: adding candidates to table
0.110 * * [progress]: iteration 2 / 4
0.110 * * * [progress]: picking best candidate
0.112 * * * * [pick]: Picked  #<alt (λ (x) (+ (* x 1.0) (* x (* x (neg 0.5)))))>
0.112 * * * [progress]: localizing error
0.120 * * * [progress]: generating rewritten candidates
0.120 * * * [progress]: generating series expansions
0.120 * * * [progress]: simplifying candidates
0.120 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.122 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.122 * [simplify]: Simplified to:
   
0.122 * * * [progress]: adding candidates to table
0.122 * [progress]: [Phase 3 of 3] Extracting.
0.124 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* x 1.0) (* x (* x (neg 0.5))))
0.125 * * [simplify]: iteration  0 :  46  enodes  (cost  9 )
0.125 * * [simplify]: iteration  1 :  46  enodes  (cost  9 )
0.125 * [simplify]: Simplified to:
   (- (* x 1.0) (* x (* x 0.5)))
0.513 * [regime-testing]: End program error score: 0.00906261446384919