6.998 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.023 * * * [progress]: [2/2] Setting up program.
0.024 * [progress]: [Phase 2 of 3] Improving.
0.024 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (- 1.0 (* x 0.5)))
0.027 * * [simplify]: iteration  0 :  10  enodes  (cost  3 )
0.028 * * [simplify]: iteration  1 :  23  enodes  (cost  3 )
0.030 * * [simplify]: iteration  2 :  44  enodes  (cost  3 )
0.031 * * [simplify]: iteration  3 :  62  enodes  (cost  3 )
0.033 * * [simplify]: iteration  4 :  63  enodes  (cost  3 )
0.034 * * [simplify]: iteration  5 :  63  enodes  (cost  3 )
0.035 * [simplify]: Simplified to:
   (* x (- 1.0 (* x 0.5)))
0.035 * * [progress]: iteration 1 / 4
0.035 * * * [progress]: picking best candidate
0.036 * * * * [pick]: Picked  #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>
0.036 * * * [progress]: localizing error
0.041 * * * [progress]: generating rewritten candidates
0.041 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.050 * * * [progress]: generating series expansions
0.050 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.050 * [approximate]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in (x) around 0
0.050 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.050 * [taylor]: Taking taylor expansion of x in x
0.050 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.050 * [taylor]: Taking taylor expansion of 1.0 in x
0.050 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.050 * [taylor]: Taking taylor expansion of 0.5 in x
0.050 * [taylor]: Taking taylor expansion of x in x
0.050 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.050 * [taylor]: Taking taylor expansion of x in x
0.050 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.050 * [taylor]: Taking taylor expansion of 1.0 in x
0.050 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.050 * [taylor]: Taking taylor expansion of 0.5 in x
0.050 * [taylor]: Taking taylor expansion of x in x
0.072 * [approximate]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in (x) around 0
0.073 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.073 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.073 * [taylor]: Taking taylor expansion of 1.0 in x
0.073 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.073 * [taylor]: Taking taylor expansion of 0.5 in x
0.073 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.073 * [taylor]: Taking taylor expansion of x in x
0.073 * [taylor]: Taking taylor expansion of x in x
0.075 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.075 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.075 * [taylor]: Taking taylor expansion of 1.0 in x
0.075 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.075 * [taylor]: Taking taylor expansion of 0.5 in x
0.075 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.075 * [taylor]: Taking taylor expansion of x in x
0.075 * [taylor]: Taking taylor expansion of x in x
0.093 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in (x) around 0
0.093 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.093 * [taylor]: Taking taylor expansion of -1 in x
0.093 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.094 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.094 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.094 * [taylor]: Taking taylor expansion of 0.5 in x
0.094 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.094 * [taylor]: Taking taylor expansion of x in x
0.094 * [taylor]: Taking taylor expansion of 1.0 in x
0.094 * [taylor]: Taking taylor expansion of x in x
0.095 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.095 * [taylor]: Taking taylor expansion of -1 in x
0.095 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.095 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.095 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.095 * [taylor]: Taking taylor expansion of 0.5 in x
0.095 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.095 * [taylor]: Taking taylor expansion of x in x
0.095 * [taylor]: Taking taylor expansion of 1.0 in x
0.095 * [taylor]: Taking taylor expansion of x in x
0.120 * * * [progress]: simplifying candidates
0.121 * [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)))
0.124 * * [simplify]: iteration  0 :  151  enodes  (cost  198 )
0.128 * * [simplify]: iteration  1 :  642  enodes  (cost  173 )
0.144 * * [simplify]: iteration  2 :  3593  enodes  (cost  170 )
0.221 * * [simplify]: iteration  3 :  5001  enodes  (cost  162 )
0.222 * [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)))
0.222 * * * [progress]: adding candidates to table
0.262 * * [progress]: iteration 2 / 4
0.262 * * * [progress]: picking best candidate
0.263 * * * * [pick]: Picked  #<alt (λ (x) (+ (* x 1.0) (* x (- (* x 0.5)))))>
0.263 * * * [progress]: localizing error
0.270 * * * [progress]: generating rewritten candidates
0.270 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.273 * * * [progress]: generating series expansions
0.273 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.274 * [approximate]: Taking taylor expansion of (- (* 1.0 x) (* 0.5 (pow x 2))) in (x) around 0
0.274 * [taylor]: Taking taylor expansion of (- (* 1.0 x) (* 0.5 (pow x 2))) in x
0.274 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
0.274 * [taylor]: Taking taylor expansion of 1.0 in x
0.274 * [taylor]: Taking taylor expansion of x in x
0.274 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in x
0.274 * [taylor]: Taking taylor expansion of 0.5 in x
0.274 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.274 * [taylor]: Taking taylor expansion of x in x
0.274 * [taylor]: Taking taylor expansion of (- (* 1.0 x) (* 0.5 (pow x 2))) in x
0.274 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
0.274 * [taylor]: Taking taylor expansion of 1.0 in x
0.274 * [taylor]: Taking taylor expansion of x in x
0.274 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in x
0.274 * [taylor]: Taking taylor expansion of 0.5 in x
0.274 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.274 * [taylor]: Taking taylor expansion of x in x
0.293 * [approximate]: Taking taylor expansion of (- (* 1.0 (/ 1 x)) (* 0.5 (/ 1 (pow x 2)))) in (x) around 0
0.293 * [taylor]: Taking taylor expansion of (- (* 1.0 (/ 1 x)) (* 0.5 (/ 1 (pow x 2)))) in x
0.293 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.293 * [taylor]: Taking taylor expansion of 1.0 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 (* 0.5 (/ 1 (pow x 2))) in x
0.294 * [taylor]: Taking taylor expansion of 0.5 in x
0.294 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.294 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.294 * [taylor]: Taking taylor expansion of x in x
0.294 * [taylor]: Taking taylor expansion of (- (* 1.0 (/ 1 x)) (* 0.5 (/ 1 (pow x 2)))) in x
0.294 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.294 * [taylor]: Taking taylor expansion of 1.0 in x
0.294 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.294 * [taylor]: Taking taylor expansion of x in x
0.295 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.295 * [taylor]: Taking taylor expansion of 0.5 in x
0.295 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.295 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.295 * [taylor]: Taking taylor expansion of x in x
0.319 * [approximate]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x)))) in (x) around 0
0.319 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x)))) in x
0.319 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x))) in x
0.319 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.319 * [taylor]: Taking taylor expansion of 0.5 in x
0.319 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.319 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.319 * [taylor]: Taking taylor expansion of x in x
0.319 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.319 * [taylor]: Taking taylor expansion of 1.0 in x
0.319 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.319 * [taylor]: Taking taylor expansion of x in x
0.320 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x)))) in x
0.320 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (pow x 2))) (* 1.0 (/ 1 x))) in x
0.320 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.320 * [taylor]: Taking taylor expansion of 0.5 in x
0.320 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.320 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.320 * [taylor]: Taking taylor expansion of x in x
0.320 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.320 * [taylor]: Taking taylor expansion of 1.0 in x
0.320 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.320 * [taylor]: Taking taylor expansion of x in x
0.348 * * * [progress]: simplifying candidates
0.348 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (+ (* x 1.0) (* x (- (* x 0.5)))))
  (log1p (+ (* x 1.0) (* x (- (* x 0.5)))))
  (* (exp (* x 1.0)) (exp (* x (- (* x 0.5)))))
  (log (+ (* x 1.0) (* x (- (* x 0.5)))))
  (exp (+ (* x 1.0) (* x (- (* x 0.5)))))
  (* (cbrt (+ (* x 1.0) (* x (- (* x 0.5))))) (cbrt (+ (* x 1.0) (* x (- (* x 0.5))))))
  (cbrt (+ (* x 1.0) (* x (- (* x 0.5)))))
  (* (* (+ (* x 1.0) (* x (- (* x 0.5)))) (+ (* x 1.0) (* x (- (* x 0.5))))) (+ (* x 1.0) (* x (- (* x 0.5)))))
  (sqrt (+ (* x 1.0) (* x (- (* x 0.5)))))
  (sqrt (+ (* x 1.0) (* x (- (* x 0.5)))))
  (+ (pow (* x 1.0) 3) (pow (* x (- (* x 0.5))) 3))
  (+ (* (* x 1.0) (* x 1.0)) (- (* (* x (- (* x 0.5))) (* x (- (* x 0.5)))) (* (* x 1.0) (* x (- (* x 0.5))))))
  (- (* (* x 1.0) (* x 1.0)) (* (* x (- (* x 0.5))) (* x (- (* x 0.5)))))
  (- (* x 1.0) (* x (- (* x 0.5))))
  (+ 1.0 (- (* 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)))
0.351 * * [simplify]: iteration  0 :  124  enodes  (cost  125 )
0.355 * * [simplify]: iteration  1 :  537  enodes  (cost  102 )
0.373 * * [simplify]: iteration  2 :  3532  enodes  (cost  98 )
0.473 * * [simplify]: iteration  3 :  5001  enodes  (cost  96 )
0.474 * [simplify]: Simplified to:
   (expm1 (+ (* x 1.0) (* x (- (* x 0.5)))))
  (log1p (+ (* x 1.0) (* x (- (* x 0.5)))))
  (pow (exp x) (- 1.0 (* x 0.5)))
  (+ (log x) (log (- 1.0 (* x 0.5))))
  (pow (exp x) (- 1.0 (* x 0.5)))
  (* (cbrt (+ (* x 1.0) (* x (- (* x 0.5))))) (cbrt (+ (* x 1.0) (* x (- (* x 0.5))))))
  (cbrt (+ (* x 1.0) (* x (- (* x 0.5)))))
  (pow (* (- 1.0 (* x 0.5)) x) 3)
  (sqrt (+ (* x 1.0) (* x (- (* x 0.5)))))
  (sqrt (+ (* x 1.0) (* x (- (* x 0.5)))))
  (- (pow (* x 1.0) 3) (pow (* x (* x 0.5)) 3))
  (fma (* x (* x 0.5)) (fma 1.0 x (* x (* x 0.5))) (* (* x 1.0) (* x 1.0)))
  (* (pow x 2) (- (* 1.0 1.0) (* (* x 0.5) (* x 0.5))))
  (fma 1.0 x (* x (* x 0.5)))
  (- 1.0 (* x 0.5))
  (* (- 1.0 (* x 0.5)) x)
  (* (- 1.0 (* x 0.5)) x)
  (* (- 1.0 (* x 0.5)) x)
0.475 * * * [progress]: adding candidates to table
0.506 * [progress]: [Phase 3 of 3] Extracting.
0.506 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (+ (* x 1.0) (* x (- (* x 0.5)))))> #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>)
0.506 * * * [regime-changes]: Trying 2 branch expressions: ((* x (- 1.0 (* x 0.5))) x)
0.506 * * * * [regimes]: Trying to branch on (* x (- 1.0 (* x 0.5))) from (#<alt (λ (x) (+ (* x 1.0) (* x (- (* x 0.5)))))> #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>)
0.518 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (+ (* x 1.0) (* x (- (* x 0.5)))))> #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>)
0.527 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
0.528 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (- 1.0 (* x 0.5)))
0.528 * * [simplify]: iteration  0 :  8  enodes  (cost  3 )
0.528 * * [simplify]: iteration  1 :  8  enodes  (cost  3 )
0.528 * [simplify]: Simplified to:
   (* x (- 1.0 (* x 0.5)))
1.172 * [regime-testing]: Baseline error score: 0.009876234529316165
1.172 * [regime-testing]: Oracle error score: 0.0005000625078134767
1.173 * [regime-testing]: End program error score: 0.009876234529316165