12.217 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.004 * * * * [points]: Sampling 256 additional inputs, on iter 0 have 0 / 256
0.005 * * * * [points]: Computing exacts on every 16 of 256 points to ramp up precision
0.005 * * * * [points]: Setting MPFR precision to 64
0.005 * * * * [points]: Setting MPFR precision to 320
0.005 * * * * [points]: Computing exacts on every 8 of 256 points to ramp up precision
0.006 * * * * [points]: Setting MPFR precision to 64
0.006 * * * * [points]: Setting MPFR precision to 320
0.006 * * * * [points]: Computing exacts on every 4 of 256 points to ramp up precision
0.006 * * * * [points]: Setting MPFR precision to 64
0.007 * * * * [points]: Setting MPFR precision to 320
0.007 * * * * [points]: Computing exacts on every 2 of 256 points to ramp up precision
0.007 * * * * [points]: Setting MPFR precision to 64
0.008 * * * * [points]: Setting MPFR precision to 320
0.009 * * * * [points]: Computing exacts for 256 points
0.009 * * * * [points]: Setting MPFR precision to 64
0.011 * * * * [points]: Setting MPFR precision to 320
0.013 * * * * [points]: Filtering points with unrepresentable outputs
0.014 * * * * [points]: Sampled 256 points with exact outputs
0.018 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.020 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (- 1.0 (* x 0.5)))
0.029 * * [simplify]: iteration  0 :  228  enodes  (cost  7 )
0.029 * * [simplify]: iteration  1 :  228  enodes  (cost  7 )
0.030 * [simplify]: Simplified to:
   (* x (- 1.0 (* x 0.5)))
0.030 * * [progress]: iteration 1 / 4
0.030 * * * [progress]: picking best candidate
0.032 * * * * [pick]: Picked  #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>
0.032 * * * [progress]: localizing error
0.036 * * * [progress]: generating rewritten candidates
0.036 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.042 * * * [progress]: generating series expansions
0.042 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.042 * [approximate]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in (x) around 0
0.042 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.042 * [taylor]: Taking taylor expansion of x in x
0.042 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.042 * [taylor]: Taking taylor expansion of 1.0 in x
0.042 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.042 * [taylor]: Taking taylor expansion of 0.5 in x
0.042 * [taylor]: Taking taylor expansion of x in x
0.042 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.042 * [taylor]: Taking taylor expansion of x in x
0.042 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.042 * [taylor]: Taking taylor expansion of 1.0 in x
0.042 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.042 * [taylor]: Taking taylor expansion of 0.5 in x
0.042 * [taylor]: Taking taylor expansion of x in x
0.044 * [approximate]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in (x) around 0
0.044 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.044 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.044 * [taylor]: Taking taylor expansion of 1.0 in x
0.044 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.044 * [taylor]: Taking taylor expansion of 0.5 in x
0.044 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.044 * [taylor]: Taking taylor expansion of x in x
0.044 * [taylor]: Taking taylor expansion of x in x
0.044 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.044 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.044 * [taylor]: Taking taylor expansion of 1.0 in x
0.044 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.044 * [taylor]: Taking taylor expansion of 0.5 in x
0.044 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.044 * [taylor]: Taking taylor expansion of x in x
0.044 * [taylor]: Taking taylor expansion of x in x
0.046 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in (x) around 0
0.046 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.046 * [taylor]: Taking taylor expansion of -1 in x
0.046 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.046 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.046 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.046 * [taylor]: Taking taylor expansion of 0.5 in x
0.046 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.046 * [taylor]: Taking taylor expansion of x in x
0.046 * [taylor]: Taking taylor expansion of 1.0 in x
0.046 * [taylor]: Taking taylor expansion of x in x
0.046 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.046 * [taylor]: Taking taylor expansion of -1 in x
0.046 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.046 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.046 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.046 * [taylor]: Taking taylor expansion of 0.5 in x
0.046 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.046 * [taylor]: Taking taylor expansion of x in x
0.046 * [taylor]: Taking taylor expansion of 1.0 in x
0.046 * [taylor]: Taking taylor expansion of x in x
0.052 * * * [progress]: simplifying candidates
0.052 * [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)))
0.092 * * [simplify]: iteration  0 :  4987  enodes  (cost  218 )
0.092 * * [simplify]: iteration  1 :  4987  enodes  (cost  218 )
0.094 * [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)))
0.094 * * * [progress]: adding candidates to table
0.119 * * [progress]: iteration 2 / 4
0.119 * * * [progress]: picking best candidate
0.121 * * * * [pick]: Picked  #<alt (λ (x) (+ (* x 1.0) (* x (* x (neg 0.5)))))>
0.121 * * * [progress]: localizing error
0.127 * * * [progress]: generating rewritten candidates
0.127 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.131 * * * [progress]: generating series expansions
0.131 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.131 * [approximate]: Taking taylor expansion of (- (* 1.0 x) (* 0.5 (pow x 2))) in (x) around 0
0.131 * [taylor]: Taking taylor expansion of (- (* 1.0 x) (* 0.5 (pow x 2))) in x
0.131 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
0.131 * [taylor]: Taking taylor expansion of 1.0 in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.132 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in x
0.132 * [taylor]: Taking taylor expansion of 0.5 in x
0.132 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.132 * [taylor]: Taking taylor expansion of (- (* 1.0 x) (* 0.5 (pow x 2))) in x
0.132 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
0.132 * [taylor]: Taking taylor expansion of 1.0 in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.132 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in x
0.132 * [taylor]: Taking taylor expansion of 0.5 in x
0.132 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.133 * [approximate]: Taking taylor expansion of (- (* 1.0 (/ 1 x)) (* 0.5 (/ 1 (pow x 2)))) in (x) around 0
0.133 * [taylor]: Taking taylor expansion of (- (* 1.0 (/ 1 x)) (* 0.5 (/ 1 (pow x 2)))) in x
0.133 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.133 * [taylor]: Taking taylor expansion of 1.0 in x
0.133 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.133 * [taylor]: Taking taylor expansion of x in x
0.133 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.133 * [taylor]: Taking taylor expansion of 0.5 in x
0.133 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.133 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.133 * [taylor]: Taking taylor expansion of x in x
0.133 * [taylor]: Taking taylor expansion of (- (* 1.0 (/ 1 x)) (* 0.5 (/ 1 (pow x 2)))) in x
0.133 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.133 * [taylor]: Taking taylor expansion of 1.0 in x
0.133 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.133 * [taylor]: Taking taylor expansion of x in x
0.133 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.133 * [taylor]: Taking taylor expansion of 0.5 in x
0.133 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.133 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.133 * [taylor]: Taking taylor expansion of x in x
0.135 * [approximate]: Taking taylor expansion of (neg (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x)))) in (x) around 0
0.135 * [taylor]: Taking taylor expansion of (neg (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x)))) in x
0.135 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x))) in x
0.135 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.135 * [taylor]: Taking taylor expansion of 0.5 in x
0.135 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.135 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.135 * [taylor]: Taking taylor expansion of x in x
0.135 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.135 * [taylor]: Taking taylor expansion of 1.0 in x
0.135 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.135 * [taylor]: Taking taylor expansion of x in x
0.136 * [taylor]: Taking taylor expansion of (neg (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x)))) in x
0.136 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x))) in x
0.136 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.136 * [taylor]: Taking taylor expansion of 0.5 in x
0.136 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.136 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.136 * [taylor]: Taking taylor expansion of x in x
0.136 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.136 * [taylor]: Taking taylor expansion of 1.0 in x
0.136 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.136 * [taylor]: Taking taylor expansion of x in x
0.138 * * * [progress]: simplifying candidates
0.138 * [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)))
0.181 * * [simplify]: iteration  0 :  5333  enodes  (cost  152 )
0.182 * [simplify]: Simplified to:
   (pow (exp x) (- 1.0 (* x 0.5)))
  (log (* x (- 1.0 (* x 0.5))))
  (pow (exp x) (- 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))))
  (pow (* x (- 1.0 (* x 0.5))) 3)
  (sqrt (* x (- 1.0 (* x 0.5))))
  (sqrt (* x (- 1.0 (* x 0.5))))
  (- (pow (* x 1.0) 3) (* (pow x 6) (pow 0.5 3)))
  (* x (* x (+ (* 1.0 1.0) (* 0.5 (* x (+ 1.0 (* x 0.5)))))))
  (- (* x (* x (* 1.0 1.0))) (* 0.5 (* 0.5 (pow x 4))))
  (* x (+ 1.0 (* x 0.5)))
  (- 1.0 (* x 0.5))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
0.182 * * * [progress]: adding candidates to table
0.202 * [progress]: [Phase 3 of 3] Extracting.
0.202 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (+ (* x 1.0) (* x (* x (neg 0.5)))))> #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>)
0.202 * * * [regime-changes]: Trying 2 branch expressions: ((* x (- 1.0 (* x 0.5))) x)
0.202 * * * * [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))))>)
0.227 * * * * [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))))>)
0.250 * * * [regime]: Found split indices: #<option (#s(si 0 256))>
0.251 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* x 1.0) (* x (* x (neg 0.5))))
0.252 * * [simplify]: iteration  0 :  46  enodes  (cost  9 )
0.252 * * [simplify]: iteration  1 :  46  enodes  (cost  9 )
0.252 * [simplify]: Simplified to:
   (- (* x 1.0) (* x (* x 0.5)))
0.252 * * * * [points]: Sampling 8000 additional inputs, on iter 0 have 0 / 8000
0.287 * * * * [points]: Computing exacts on every 500 of 8000 points to ramp up precision
0.287 * * * * [points]: Setting MPFR precision to 64
0.287 * * * * [points]: Setting MPFR precision to 320
0.288 * * * * [points]: Computing exacts on every 250 of 8000 points to ramp up precision
0.288 * * * * [points]: Setting MPFR precision to 64
0.288 * * * * [points]: Setting MPFR precision to 320
0.288 * * * * [points]: Computing exacts on every 125 of 8000 points to ramp up precision
0.288 * * * * [points]: Setting MPFR precision to 64
0.289 * * * * [points]: Setting MPFR precision to 320
0.289 * * * * [points]: Computing exacts on every 62 of 8000 points to ramp up precision
0.290 * * * * [points]: Setting MPFR precision to 64
0.291 * * * * [points]: Setting MPFR precision to 320
0.292 * * * * [points]: Computing exacts on every 31 of 8000 points to ramp up precision
0.292 * * * * [points]: Setting MPFR precision to 64
0.294 * * * * [points]: Setting MPFR precision to 320
0.296 * * * * [points]: Computing exacts on every 15 of 8000 points to ramp up precision
0.296 * * * * [points]: Setting MPFR precision to 64
0.300 * * * * [points]: Setting MPFR precision to 320
0.305 * * * * [points]: Computing exacts on every 7 of 8000 points to ramp up precision
0.305 * * * * [points]: Setting MPFR precision to 64
0.313 * * * * [points]: Setting MPFR precision to 320
0.325 * * * * [points]: Computing exacts on every 3 of 8000 points to ramp up precision
0.325 * * * * [points]: Setting MPFR precision to 64
0.342 * * * * [points]: Setting MPFR precision to 320
0.359 * * * * [points]: Computing exacts for 8000 points
0.359 * * * * [points]: Setting MPFR precision to 64
0.427 * * * * [points]: Setting MPFR precision to 320
0.498 * * * * [points]: Filtering points with unrepresentable outputs
0.509 * * * * [points]: Sampling 4 additional inputs, on iter 1 have 7999 / 8000
0.509 * * * * [points]: Computing exacts for 4 points
0.509 * * * * [points]: Setting MPFR precision to 64
0.509 * * * * [points]: Setting MPFR precision to 320
0.509 * * * * [points]: Filtering points with unrepresentable outputs
0.509 * * * * [points]: Sampled 8003 points with exact outputs
0.842 * [regime-testing]: End program error score: 0.008875