13.828 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.011 * * * [progress]: [2/2] Setting up program.
0.012 * [progress]: [Phase 2 of 3] Improving.
0.013 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (- 1.0 (* x 0.5)))
0.015 * * [simplify]: iteration  0 :  10  enodes  (cost  3 )
0.016 * * [simplify]: iteration  1 :  23  enodes  (cost  3 )
0.017 * * [simplify]: iteration  2 :  44  enodes  (cost  3 )
0.019 * * [simplify]: iteration  3 :  62  enodes  (cost  3 )
0.021 * * [simplify]: iteration  4 :  63  enodes  (cost  3 )
0.022 * * [simplify]: iteration  5 :  63  enodes  (cost  3 )
0.022 * [simplify]: Simplified to:
   (* x (- 1.0 (* x 0.5)))
0.022 * * [progress]: iteration 1 / 4
0.023 * * * [progress]: picking best candidate
0.024 * * * * [pick]: Picked  #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>
0.024 * * * [progress]: localizing error
0.028 * * * [progress]: generating rewritten candidates
0.028 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.034 * * * [progress]: generating series expansions
0.034 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.034 * [approximate]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in (x) around 0
0.034 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.034 * [taylor]: Taking taylor expansion of x in x
0.034 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.035 * [taylor]: Taking taylor expansion of 1.0 in x
0.035 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.035 * [taylor]: Taking taylor expansion of 0.5 in x
0.035 * [taylor]: Taking taylor expansion of x in x
0.035 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.035 * [taylor]: Taking taylor expansion of x in x
0.035 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.035 * [taylor]: Taking taylor expansion of 1.0 in x
0.035 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.035 * [taylor]: Taking taylor expansion of 0.5 in x
0.035 * [taylor]: Taking taylor expansion of x in x
0.056 * [approximate]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in (x) around 0
0.056 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.056 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.056 * [taylor]: Taking taylor expansion of 1.0 in x
0.056 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.056 * [taylor]: Taking taylor expansion of 0.5 in x
0.056 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.056 * [taylor]: Taking taylor expansion of x in x
0.056 * [taylor]: Taking taylor expansion of x in x
0.058 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.058 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.058 * [taylor]: Taking taylor expansion of 1.0 in x
0.058 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.058 * [taylor]: Taking taylor expansion of 0.5 in x
0.058 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.058 * [taylor]: Taking taylor expansion of x in x
0.058 * [taylor]: Taking taylor expansion of x in x
0.076 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in (x) around 0
0.076 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.076 * [taylor]: Taking taylor expansion of -1 in x
0.076 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.076 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.076 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.076 * [taylor]: Taking taylor expansion of 0.5 in x
0.076 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.076 * [taylor]: Taking taylor expansion of x in x
0.076 * [taylor]: Taking taylor expansion of 1.0 in x
0.077 * [taylor]: Taking taylor expansion of x in x
0.082 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.082 * [taylor]: Taking taylor expansion of -1 in x
0.082 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.082 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.082 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.082 * [taylor]: Taking taylor expansion of 0.5 in x
0.082 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.082 * [taylor]: Taking taylor expansion of x in x
0.082 * [taylor]: Taking taylor expansion of 1.0 in x
0.082 * [taylor]: Taking taylor expansion of x in x
0.104 * * * [progress]: simplifying candidates
0.105 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (* x (- 1.0 (* x 0.5))))
  (log1p (* x (- 1.0 (* x 0.5))))
  (* 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 (fma (* (cbrt 1.0) (cbrt 1.0)) (cbrt 1.0) (- (* 0.5 x))))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x (fma (sqrt 1.0) (sqrt 1.0) (- (* 0.5 x))))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x (fma 1 1.0 (- (* 0.5 x))))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* (fma (* (cbrt 1.0) (cbrt 1.0)) (cbrt 1.0) (- (* 0.5 x))) x)
  (* (fma (- 0.5) x (* 0.5 x)) x)
  (* (fma (sqrt 1.0) (sqrt 1.0) (- (* 0.5 x))) x)
  (* (fma (- 0.5) x (* 0.5 x)) x)
  (* (fma 1 1.0 (- (* 0.5 x))) x)
  (* (fma (- 0.5) x (* 0.5 x)) x)
  (* 1.0 x)
  (* (- (* x 0.5)) x)
  (* 1.0 x)
  (* (- (* 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)))
0.108 * * [simplify]: iteration  0 :  151  enodes  (cost  198 )
0.111 * * [simplify]: iteration  1 :  642  enodes  (cost  173 )
0.127 * * [simplify]: iteration  2 :  3593  enodes  (cost  170 )
0.203 * * [simplify]: iteration  3 :  5001  enodes  (cost  162 )
0.204 * [simplify]: Simplified to:
   (expm1 (* x (- 1.0 (* x 0.5))))
  (log1p (* x (- 1.0 (* x 0.5))))
  (* x (- 1.0 (* x 0.5)))
  (log (* x (- 1.0 (* x 0.5))))
  (log (* x (- 1.0 (* x 0.5))))
  (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 (- 1.0 (* x 0.5))) (pow x 1/2))
  (* (sqrt (- 1.0 (* x 0.5))) (pow x 1/2))
  (* x (- 1.0 (* x 0.5)))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x (- 1.0 (* x 0.5)))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x (- 1.0 (* x 0.5)))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x (- 1.0 (* x 0.5)))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x (- 1.0 (* x 0.5)))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* x (* (cbrt (- 1.0 (* x 0.5))) (cbrt (- 1.0 (* x 0.5)))))
  (* x (sqrt (- 1.0 (* x 0.5))))
  x
  (* (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 (* x 0.5))) (fma 0.5 x 1.0))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
0.205 * * * [progress]: adding candidates to table
0.247 * * [progress]: iteration 2 / 4
0.247 * * * [progress]: picking best candidate
0.249 * * * * [pick]: Picked  #<alt (λ (x) (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))>
0.249 * * * [progress]: localizing error
0.257 * * * [progress]: generating rewritten candidates
0.257 * * * * [progress]: [ 1 / 3 ] rewriting at (2)
0.259 * * * * [progress]: [ 2 / 3 ] rewriting at (2 1)
0.265 * * * * [progress]: [ 3 / 3 ] rewriting at (2 1 1)
0.272 * * * [progress]: generating series expansions
0.272 * * * * [progress]: [ 1 / 3 ] generating series at (2)
0.272 * [approximate]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in (x) around 0
0.272 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.272 * [taylor]: Taking taylor expansion of x in x
0.272 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.272 * [taylor]: Taking taylor expansion of 1.0 in x
0.272 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.272 * [taylor]: Taking taylor expansion of 0.5 in x
0.272 * [taylor]: Taking taylor expansion of x in x
0.272 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.272 * [taylor]: Taking taylor expansion of x in x
0.272 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.272 * [taylor]: Taking taylor expansion of 1.0 in x
0.272 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.273 * [taylor]: Taking taylor expansion of 0.5 in x
0.273 * [taylor]: Taking taylor expansion of x in x
0.293 * [approximate]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in (x) around 0
0.293 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.293 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.293 * [taylor]: Taking taylor expansion of 1.0 in x
0.293 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.293 * [taylor]: Taking taylor expansion of 0.5 in x
0.293 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.293 * [taylor]: Taking taylor expansion of x in x
0.294 * [taylor]: Taking taylor expansion of x in x
0.295 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.295 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.295 * [taylor]: Taking taylor expansion of 1.0 in x
0.295 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.295 * [taylor]: Taking taylor expansion of 0.5 in x
0.295 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.295 * [taylor]: Taking taylor expansion of x in x
0.296 * [taylor]: Taking taylor expansion of x in x
0.318 * [approximate]: Taking taylor expansion of (/ (* (cbrt -1) (+ (* 0.5 (/ 1 x)) 1.0)) x) in (x) around 0
0.318 * [taylor]: Taking taylor expansion of (/ (* (cbrt -1) (+ (* 0.5 (/ 1 x)) 1.0)) x) in x
0.318 * [taylor]: Taking taylor expansion of (* (cbrt -1) (+ (* 0.5 (/ 1 x)) 1.0)) in x
0.318 * [taylor]: Taking taylor expansion of (cbrt -1) in x
0.318 * [taylor]: Taking taylor expansion of -1 in x
0.319 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.319 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.319 * [taylor]: Taking taylor expansion of 0.5 in x
0.319 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.319 * [taylor]: Taking taylor expansion of x in x
0.319 * [taylor]: Taking taylor expansion of 1.0 in x
0.319 * [taylor]: Taking taylor expansion of x in x
0.322 * [taylor]: Taking taylor expansion of (/ (* (cbrt -1) (+ (* 0.5 (/ 1 x)) 1.0)) x) in x
0.322 * [taylor]: Taking taylor expansion of (* (cbrt -1) (+ (* 0.5 (/ 1 x)) 1.0)) in x
0.322 * [taylor]: Taking taylor expansion of (cbrt -1) in x
0.322 * [taylor]: Taking taylor expansion of -1 in x
0.322 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.322 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.322 * [taylor]: Taking taylor expansion of 0.5 in x
0.322 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.322 * [taylor]: Taking taylor expansion of x in x
0.323 * [taylor]: Taking taylor expansion of 1.0 in x
0.323 * [taylor]: Taking taylor expansion of x in x
0.357 * * * * [progress]: [ 2 / 3 ] generating series at (2 1)
0.357 * [approximate]: Taking taylor expansion of (pow (* x (- 1.0 (* 0.5 x))) 3) in (x) around 0
0.358 * [taylor]: Taking taylor expansion of (pow (* x (- 1.0 (* 0.5 x))) 3) in x
0.358 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.358 * [taylor]: Taking taylor expansion of x in x
0.358 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.358 * [taylor]: Taking taylor expansion of 1.0 in x
0.358 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.358 * [taylor]: Taking taylor expansion of 0.5 in x
0.358 * [taylor]: Taking taylor expansion of x in x
0.361 * [taylor]: Taking taylor expansion of (pow (* x (- 1.0 (* 0.5 x))) 3) in x
0.361 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.361 * [taylor]: Taking taylor expansion of x in x
0.361 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.361 * [taylor]: Taking taylor expansion of 1.0 in x
0.361 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.362 * [taylor]: Taking taylor expansion of 0.5 in x
0.362 * [taylor]: Taking taylor expansion of x in x
0.379 * [approximate]: Taking taylor expansion of (pow (/ (- 1.0 (* 0.5 (/ 1 x))) x) 3) in (x) around 0
0.379 * [taylor]: Taking taylor expansion of (pow (/ (- 1.0 (* 0.5 (/ 1 x))) x) 3) in x
0.380 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.380 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.380 * [taylor]: Taking taylor expansion of 1.0 in x
0.380 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.380 * [taylor]: Taking taylor expansion of 0.5 in x
0.380 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.380 * [taylor]: Taking taylor expansion of x in x
0.380 * [taylor]: Taking taylor expansion of x in x
0.381 * [taylor]: Taking taylor expansion of (pow (/ (- 1.0 (* 0.5 (/ 1 x))) x) 3) in x
0.382 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.382 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.382 * [taylor]: Taking taylor expansion of 1.0 in x
0.382 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.382 * [taylor]: Taking taylor expansion of 0.5 in x
0.382 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.382 * [taylor]: Taking taylor expansion of x in x
0.382 * [taylor]: Taking taylor expansion of x in x
0.401 * [approximate]: Taking taylor expansion of (pow (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) 3) in (x) around 0
0.401 * [taylor]: Taking taylor expansion of (pow (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) 3) in x
0.401 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.401 * [taylor]: Taking taylor expansion of -1 in x
0.401 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.402 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.402 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.402 * [taylor]: Taking taylor expansion of 0.5 in x
0.402 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.402 * [taylor]: Taking taylor expansion of x in x
0.402 * [taylor]: Taking taylor expansion of 1.0 in x
0.402 * [taylor]: Taking taylor expansion of x in x
0.403 * [taylor]: Taking taylor expansion of (pow (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) 3) in x
0.403 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.403 * [taylor]: Taking taylor expansion of -1 in x
0.403 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.403 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.403 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.403 * [taylor]: Taking taylor expansion of 0.5 in x
0.403 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.403 * [taylor]: Taking taylor expansion of x in x
0.403 * [taylor]: Taking taylor expansion of 1.0 in x
0.403 * [taylor]: Taking taylor expansion of x in x
0.419 * * * * [progress]: [ 3 / 3 ] generating series at (2 1 1)
0.419 * [approximate]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in (x) around 0
0.419 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.419 * [taylor]: Taking taylor expansion of x in x
0.419 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.420 * [taylor]: Taking taylor expansion of 1.0 in x
0.420 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.420 * [taylor]: Taking taylor expansion of 0.5 in x
0.420 * [taylor]: Taking taylor expansion of x in x
0.420 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.420 * [taylor]: Taking taylor expansion of x in x
0.420 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.420 * [taylor]: Taking taylor expansion of 1.0 in x
0.420 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.420 * [taylor]: Taking taylor expansion of 0.5 in x
0.420 * [taylor]: Taking taylor expansion of x in x
0.440 * [approximate]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in (x) around 0
0.440 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.440 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.440 * [taylor]: Taking taylor expansion of 1.0 in x
0.440 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.440 * [taylor]: Taking taylor expansion of 0.5 in x
0.440 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.440 * [taylor]: Taking taylor expansion of x in x
0.441 * [taylor]: Taking taylor expansion of x in x
0.442 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.442 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.442 * [taylor]: Taking taylor expansion of 1.0 in x
0.442 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.442 * [taylor]: Taking taylor expansion of 0.5 in x
0.442 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.442 * [taylor]: Taking taylor expansion of x in x
0.443 * [taylor]: Taking taylor expansion of x in x
0.461 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in (x) around 0
0.461 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.461 * [taylor]: Taking taylor expansion of -1 in x
0.461 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.461 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.461 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.461 * [taylor]: Taking taylor expansion of 0.5 in x
0.461 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.461 * [taylor]: Taking taylor expansion of x in x
0.461 * [taylor]: Taking taylor expansion of 1.0 in x
0.461 * [taylor]: Taking taylor expansion of x in x
0.462 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.462 * [taylor]: Taking taylor expansion of -1 in x
0.462 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.462 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.462 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.462 * [taylor]: Taking taylor expansion of 0.5 in x
0.462 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.462 * [taylor]: Taking taylor expansion of x in x
0.463 * [taylor]: Taking taylor expansion of 1.0 in x
0.463 * [taylor]: Taking taylor expansion of x in x
0.490 * * * [progress]: simplifying candidates
0.491 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (log1p (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (log (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (exp (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (cbrt (pow x 3))
  (cbrt (pow (- 1.0 (* x 0.5)) 3))
  (cbrt (* (* x (- 1.0 (* x 0.5))) (* x (- 1.0 (* x 0.5)))))
  (cbrt (* x (- 1.0 (* x 0.5))))
  (cbrt (* (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)) (cbrt (pow (* x (- 1.0 (* x 0.5))) 3))))
  (cbrt (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (cbrt (pow x 3))
  (cbrt (pow (- 1.0 (* x 0.5)) 3))
  (cbrt (* x (- 1.0 (* x 0.5))))
  (cbrt (* (* x (- 1.0 (* x 0.5))) (* x (- 1.0 (* x 0.5)))))
  (cbrt (sqrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (cbrt (sqrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (cbrt 1)
  (cbrt (pow (* x (- 1.0 (* x 0.5))) 3))
  (cbrt (pow (* x (- 1.0 (* x 0.5))) (/ 3 2)))
  (cbrt (pow (* x (- 1.0 (* x 0.5))) (/ 3 2)))
  (cbrt (pow (* x (- (pow 1.0 3) (pow (* x 0.5) 3))) 3))
  (cbrt (pow (+ (* 1.0 1.0) (+ (* (* x 0.5) (* x 0.5)) (* 1.0 (* x 0.5)))) 3))
  (cbrt (pow (* x (- (* 1.0 1.0) (* (* x 0.5) (* x 0.5)))) 3))
  (cbrt (pow (+ 1.0 (* x 0.5)) 3))
  (* (cbrt (cbrt (pow (* x (- 1.0 (* x 0.5))) 3))) (cbrt (cbrt (pow (* x (- 1.0 (* x 0.5))) 3))))
  (cbrt (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (* (* (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)) (cbrt (pow (* x (- 1.0 (* x 0.5))) 3))) (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (sqrt (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (sqrt (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (expm1 (pow (* x (- 1.0 (* x 0.5))) 3))
  (log1p (pow (* x (- 1.0 (* x 0.5))) 3))
  (* (+ (log x) (log (- 1.0 (* x 0.5)))) 3)
  (* (log (* x (- 1.0 (* x 0.5)))) 3)
  (* (log (* x (- 1.0 (* x 0.5)))) 3)
  (* 1 3)
  (* 1 3)
  (pow (* x (- 1.0 (* x 0.5))) (* (cbrt 3) (cbrt 3)))
  (pow (* x (- 1.0 (* x 0.5))) (sqrt 3))
  (pow (* x (- 1.0 (* x 0.5))) 1)
  (pow x 3)
  (pow (- 1.0 (* x 0.5)) 3)
  (* (* x (- 1.0 (* x 0.5))) (* x (- 1.0 (* x 0.5))))
  (log (pow (* x (- 1.0 (* x 0.5))) 3))
  (exp (pow (* x (- 1.0 (* x 0.5))) 3))
  (* (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)) (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (cbrt (pow (* x (- 1.0 (* x 0.5))) 3))
  (* (* (pow (* x (- 1.0 (* x 0.5))) 3) (pow (* x (- 1.0 (* x 0.5))) 3)) (pow (* x (- 1.0 (* x 0.5))) 3))
  (pow x 3)
  (pow (- 1.0 (* x 0.5)) 3)
  (pow (* x (- (pow 1.0 3) (pow (* x 0.5) 3))) 3)
  (pow (+ (* 1.0 1.0) (+ (* (* x 0.5) (* x 0.5)) (* 1.0 (* x 0.5)))) 3)
  (pow (* x (- (* 1.0 1.0) (* (* x 0.5) (* x 0.5)))) 3)
  (pow (+ 1.0 (* x 0.5)) 3)
  (* (* x (- 1.0 (* x 0.5))) (* x (- 1.0 (* x 0.5))))
  (sqrt (pow (* x (- 1.0 (* x 0.5))) 3))
  (sqrt (pow (* x (- 1.0 (* x 0.5))) 3))
  (pow (* x (- 1.0 (* x 0.5))) (/ 3 2))
  (pow (* x (- 1.0 (* x 0.5))) (/ 3 2))
  (expm1 (* x (- 1.0 (* x 0.5))))
  (log1p (* x (- 1.0 (* x 0.5))))
  (* 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 (fma (* (cbrt 1.0) (cbrt 1.0)) (cbrt 1.0) (- (* 0.5 x))))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x (fma (sqrt 1.0) (sqrt 1.0) (- (* 0.5 x))))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x (fma 1 1.0 (- (* 0.5 x))))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* (fma (* (cbrt 1.0) (cbrt 1.0)) (cbrt 1.0) (- (* 0.5 x))) x)
  (* (fma (- 0.5) x (* 0.5 x)) x)
  (* (fma (sqrt 1.0) (sqrt 1.0) (- (* 0.5 x))) x)
  (* (fma (- 0.5) x (* 0.5 x)) x)
  (* (fma 1 1.0 (- (* 0.5 x))) x)
  (* (fma (- 0.5) x (* 0.5 x)) x)
  (* 1.0 x)
  (* (- (* x 0.5)) x)
  (* 1.0 x)
  (* (- (* 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)))
  (- (* 0.5 (* (cbrt -1) (pow x 2))) (* 1.0 (* (cbrt -1) x)))
  (- (+ (* 1.0 (pow x 3)) (* 0.75 (pow x 5))) (* 1.5 (pow x 4)))
  (- (* 0.75 (pow x 5)) (+ (* 0.125 (pow x 6)) (* 1.5 (pow x 4))))
  (- (* 0.75 (pow x 5)) (+ (* 0.125 (pow x 6)) (* 1.5 (pow x 4))))
  (- (* 1.0 x) (* 0.5 (pow x 2)))
  (- (* 1.0 x) (* 0.5 (pow x 2)))
  (- (* 1.0 x) (* 0.5 (pow x 2)))
0.497 * * [simplify]: iteration  0 :  319  enodes  (cost  482 )
0.503 * * [simplify]: iteration  1 :  1439  enodes  (cost  447 )
0.537 * * [simplify]: iteration  2 :  5001  enodes  (cost  443 )
0.540 * [simplify]: Simplified to:
   (expm1 (* x (- 1.0 (* x 0.5))))
  (log1p (* x (- 1.0 (* x 0.5))))
  (log (* x (- 1.0 (* x 0.5))))
  (exp (* x (- 1.0 (* x 0.5))))
  x
  (- 1.0 (* x 0.5))
  (cbrt (* (* x (- 1.0 (* x 0.5))) (* 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)))))
  (cbrt (* x (- 1.0 (* x 0.5))))
  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)))))
  (cbrt (sqrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  (cbrt (sqrt (pow (* x (- 1.0 (* x 0.5))) 3)))
  1
  (* x (- 1.0 (* x 0.5)))
  (cbrt (pow (* x (- 1.0 (* x 0.5))) 3/2))
  (cbrt (pow (* x (- 1.0 (* x 0.5))) 3/2))
  (* x (- (pow 1.0 3) (pow (* x 0.5) 3)))
  (fma 1.0 1.0 (* (* x 0.5) (fma 0.5 x 1.0)))
  (* (* x (fma 0.5 x 1.0)) (- 1.0 (* x 0.5)))
  (fma 0.5 x 1.0)
  (* (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)
  (pow (* x (- 1.0 (* x 0.5))) 1/2)
  (pow (* x (- 1.0 (* x 0.5))) 1/2)
  (expm1 (pow (* x (- 1.0 (* x 0.5))) 3))
  (log1p (pow (* x (- 1.0 (* x 0.5))) 3))
  (log (pow (* x (- 1.0 (* x 0.5))) 3))
  (log (pow (* x (- 1.0 (* x 0.5))) 3))
  (log (pow (* x (- 1.0 (* x 0.5))) 3))
  3
  3
  (pow (* x (- 1.0 (* x 0.5))) (* (cbrt 3) (cbrt 3)))
  (pow (* x (- 1.0 (* x 0.5))) (sqrt 3))
  (* x (- 1.0 (* x 0.5)))
  (pow x 3)
  (pow (- 1.0 (* x 0.5)) 3)
  (pow (* x (- 1.0 (* x 0.5))) 2)
  (log (pow (* x (- 1.0 (* x 0.5))) 3))
  (exp (pow (* x (- 1.0 (* x 0.5))) 3))
  (pow (* x (- 1.0 (* x 0.5))) 2)
  (* x (- 1.0 (* x 0.5)))
  (pow (pow (* x (- 1.0 (* x 0.5))) 3) 3)
  (pow x 3)
  (pow (- 1.0 (* x 0.5)) 3)
  (pow (* x (- (pow 1.0 3) (pow (* x 0.5) 3))) 3)
  (pow (fma (* x 0.5) (+ 1.0 (* x 0.5)) (* 1.0 1.0)) 3)
  (pow (* x (- (* 1.0 1.0) (* (* x 0.5) (* x 0.5)))) 3)
  (pow (fma 0.5 x 1.0) 3)
  (pow (* x (- 1.0 (* x 0.5))) 2)
  (sqrt (pow (* x (- 1.0 (* x 0.5))) 3))
  (sqrt (pow (* x (- 1.0 (* x 0.5))) 3))
  (pow (* x (- 1.0 (* x 0.5))) 3/2)
  (pow (* x (- 1.0 (* x 0.5))) 3/2)
  (expm1 (* x (- 1.0 (* x 0.5))))
  (log1p (* x (- 1.0 (* x 0.5))))
  (* x (- 1.0 (* x 0.5)))
  (log (* x (- 1.0 (* x 0.5))))
  (log (* x (- 1.0 (* x 0.5))))
  (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)
  (pow (* x (- 1.0 (* x 0.5))) 1/2)
  (pow (* x (- 1.0 (* x 0.5))) 1/2)
  (* (sqrt x) (sqrt (- 1.0 (* x 0.5))))
  (* (sqrt x) (sqrt (- 1.0 (* x 0.5))))
  (* x (fma (* (cbrt 1.0) (cbrt 1.0)) (cbrt 1.0) (- (* 0.5 x))))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x (- 1.0 (* x 0.5)))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x (- 1.0 (* x 0.5)))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* x (fma (* (cbrt 1.0) (cbrt 1.0)) (cbrt 1.0) (- (* 0.5 x))))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x (- 1.0 (* x 0.5)))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x (- 1.0 (* x 0.5)))
  (* x (fma (- 0.5) x (* 0.5 x)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* x (* (cbrt (- 1.0 (* x 0.5))) (cbrt (- 1.0 (* x 0.5)))))
  (* x (sqrt (- 1.0 (* x 0.5))))
  x
  (* (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 (fma 0.5 x 1.0)) (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
  (* (cbrt -1) (- (* 0.5 (pow x 2)) (* x 1.0)))
  (fma (pow x 3) 1.0 (- (* 0.75 (pow x 5)) (* 1.5 (pow x 4))))
  (fma 0.75 (pow x 5) (- (fma 0.125 (pow x 6) (* 1.5 (pow x 4)))))
  (fma 0.75 (pow x 5) (- (fma 0.125 (pow x 6) (* 1.5 (pow x 4)))))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
0.541 * * * [progress]: adding candidates to table
0.688 * [progress]: [Phase 3 of 3] Extracting.
0.688 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))> #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>)
0.688 * * * [regime-changes]: Trying 2 branch expressions: ((* x (- 1.0 (* x 0.5))) x)
0.688 * * * * [regimes]: Trying to branch on (* x (- 1.0 (* x 0.5))) from (#<alt (λ (x) (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))> #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>)
0.698 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (cbrt (pow (* x (- 1.0 (* x 0.5))) 3)))> #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>)
0.712 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
0.712 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (- 1.0 (* x 0.5)))
0.712 * * [simplify]: iteration  0 :  8  enodes  (cost  3 )
0.713 * * [simplify]: iteration  1 :  8  enodes  (cost  3 )
0.713 * [simplify]: Simplified to:
   (* x (- 1.0 (* x 0.5)))
1.047 * [regime-testing]: Baseline error score: 0.009251156394549319
1.047 * [regime-testing]: Oracle error score: 0.007750968871108889
1.048 * [regime-testing]: End program error score: 0.009251156394549319