16.697 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.039 * * * [progress]: [2/2] Setting up program.
0.041 * [progress]: [Phase 2 of 3] Improving.
0.041 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (exp x) 1.0)
0.044 * * [simplify]: iteration  0 :  6  enodes  (cost  2 )
0.045 * * [simplify]: iteration  1 :  7  enodes  (cost  2 )
0.046 * * [simplify]: iteration  2 :  7  enodes  (cost  2 )
0.046 * [simplify]: Simplified to:
   (- (exp x) 1.0)
0.046 * * [progress]: iteration 1 / 4
0.046 * * * [progress]: picking best candidate
0.048 * * * * [pick]: Picked  #<alt (λ (x) (- (exp x) 1.0))>
0.048 * * * [progress]: localizing error
0.051 * * * [progress]: generating rewritten candidates
0.051 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.055 * * * [progress]: generating series expansions
0.055 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.055 * [approximate]: Taking taylor expansion of (- (exp x) 1.0) in (x) around 0
0.055 * [taylor]: Taking taylor expansion of (- (exp x) 1.0) in x
0.055 * [taylor]: Taking taylor expansion of (exp x) in x
0.055 * [taylor]: Taking taylor expansion of x in x
0.055 * [taylor]: Taking taylor expansion of 1.0 in x
0.055 * [taylor]: Taking taylor expansion of (- (exp x) 1.0) in x
0.055 * [taylor]: Taking taylor expansion of (exp x) in x
0.055 * [taylor]: Taking taylor expansion of x in x
0.055 * [taylor]: Taking taylor expansion of 1.0 in x
0.062 * [approximate]: Taking taylor expansion of (- (exp (/ 1 x)) 1.0) in (x) around 0
0.062 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) 1.0) in x
0.062 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.062 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.062 * [taylor]: Taking taylor expansion of x in x
0.062 * [taylor]: Taking taylor expansion of 1.0 in x
0.062 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) 1.0) in x
0.062 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.062 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.062 * [taylor]: Taking taylor expansion of x in x
0.062 * [taylor]: Taking taylor expansion of 1.0 in x
0.066 * [approximate]: Taking taylor expansion of (- (exp (/ -1 x)) 1.0) in (x) around 0
0.066 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) 1.0) in x
0.066 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.066 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.066 * [taylor]: Taking taylor expansion of -1 in x
0.066 * [taylor]: Taking taylor expansion of x in x
0.067 * [taylor]: Taking taylor expansion of 1.0 in x
0.067 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) 1.0) in x
0.067 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.067 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.067 * [taylor]: Taking taylor expansion of -1 in x
0.067 * [taylor]: Taking taylor expansion of x in x
0.067 * [taylor]: Taking taylor expansion of 1.0 in x
0.071 * * * [progress]: simplifying candidates
0.071 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (exp (exp x)) (exp 1.0))
  (log (- (exp x) 1.0))
  (exp (- (exp x) 1.0))
  (* (cbrt (- (exp x) 1.0)) (cbrt (- (exp x) 1.0)))
  (cbrt (- (exp x) 1.0))
  (* (* (- (exp x) 1.0) (- (exp x) 1.0)) (- (exp x) 1.0))
  (sqrt (- (exp x) 1.0))
  (sqrt (- (exp x) 1.0))
  (- (pow (exp x) 3) (pow 1.0 3))
  (+ (* (exp x) (exp x)) (+ (* 1.0 1.0) (* (exp x) 1.0)))
  (- 1.0)
  (- (* (exp x) (exp x)) (* 1.0 1.0))
  (+ (exp x) 1.0)
  (+ (sqrt (exp x)) (sqrt 1.0))
  (- (sqrt (exp x)) (sqrt 1.0))
  (- (exp x) 1.0)
  (- 1.0)
  (+ (* 1/2 (pow x 2)) (+ (* 1/6 (pow x 3)) x))
  (- (exp x) 1.0)
  (- (exp x) 1.0)
0.074 * * [simplify]: iteration  0 :  78  enodes  (cost  72 )
0.076 * * [simplify]: iteration  1 :  175  enodes  (cost  67 )
0.079 * * [simplify]: iteration  2 :  471  enodes  (cost  66 )
0.088 * * [simplify]: iteration  3 :  1353  enodes  (cost  66 )
0.122 * * [simplify]: iteration  4 :  5002  enodes  (cost  66 )
0.123 * [simplify]: Simplified to:
   (exp (- (exp x) 1.0))
  (log (- (exp x) 1.0))
  (exp (- (exp x) 1.0))
  (* (cbrt (- (exp x) 1.0)) (cbrt (- (exp x) 1.0)))
  (cbrt (- (exp x) 1.0))
  (pow (- (exp x) 1.0) 3)
  (sqrt (- (exp x) 1.0))
  (sqrt (- (exp x) 1.0))
  (- (pow (exp x) 3) (pow 1.0 3))
  (+ (* 1.0 (+ 1.0 (exp x))) (exp (+ x x)))
  (- 0 1.0)
  (- (* (exp x) (exp x)) (* 1.0 1.0))
  (+ (exp x) 1.0)
  (+ (sqrt (exp x)) (sqrt 1.0))
  (- (sqrt (exp x)) (sqrt 1.0))
  (- (exp x) 1.0)
  (- 0 1.0)
  (+ (* (pow x 2) (+ (* x 1/6) 1/2)) x)
  (- (exp x) 1.0)
  (- (exp x) 1.0)
0.123 * * * [progress]: adding candidates to table
0.153 * * [progress]: iteration 2 / 4
0.153 * * * [progress]: picking best candidate
0.155 * * * * [pick]: Picked  #<alt (λ (x) (+ (* (pow x 2) (+ (* x 1/6) 1/2)) x))>
0.155 * * * [progress]: localizing error
0.162 * * * [progress]: generating rewritten candidates
0.162 * * * * [progress]: [ 1 / 2 ] rewriting at (2 1 2 1)
0.166 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
0.181 * * * [progress]: generating series expansions
0.181 * * * * [progress]: [ 1 / 2 ] generating series at (2 1 2 1)
0.181 * [approximate]: Taking taylor expansion of (* 1/6 x) in (x) around 0
0.181 * [taylor]: Taking taylor expansion of (* 1/6 x) in x
0.181 * [taylor]: Taking taylor expansion of 1/6 in x
0.181 * [taylor]: Taking taylor expansion of x in x
0.181 * [taylor]: Taking taylor expansion of (* 1/6 x) in x
0.181 * [taylor]: Taking taylor expansion of 1/6 in x
0.181 * [taylor]: Taking taylor expansion of x in x
0.187 * [approximate]: Taking taylor expansion of (/ 1/6 x) in (x) around 0
0.187 * [taylor]: Taking taylor expansion of (/ 1/6 x) in x
0.187 * [taylor]: Taking taylor expansion of 1/6 in x
0.187 * [taylor]: Taking taylor expansion of x in x
0.187 * [taylor]: Taking taylor expansion of (/ 1/6 x) in x
0.187 * [taylor]: Taking taylor expansion of 1/6 in x
0.187 * [taylor]: Taking taylor expansion of x in x
0.191 * [approximate]: Taking taylor expansion of (/ -1/6 x) in (x) around 0
0.191 * [taylor]: Taking taylor expansion of (/ -1/6 x) in x
0.191 * [taylor]: Taking taylor expansion of -1/6 in x
0.191 * [taylor]: Taking taylor expansion of x in x
0.191 * [taylor]: Taking taylor expansion of (/ -1/6 x) in x
0.191 * [taylor]: Taking taylor expansion of -1/6 in x
0.192 * [taylor]: Taking taylor expansion of x in x
0.195 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
0.195 * [approximate]: Taking taylor expansion of (* (pow x 2) (+ (* 1/6 x) 1/2)) in (x) around 0
0.196 * [taylor]: Taking taylor expansion of (* (pow x 2) (+ (* 1/6 x) 1/2)) in x
0.196 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.196 * [taylor]: Taking taylor expansion of x in x
0.196 * [taylor]: Taking taylor expansion of (+ (* 1/6 x) 1/2) in x
0.196 * [taylor]: Taking taylor expansion of (* 1/6 x) in x
0.196 * [taylor]: Taking taylor expansion of 1/6 in x
0.196 * [taylor]: Taking taylor expansion of x in x
0.196 * [taylor]: Taking taylor expansion of 1/2 in x
0.196 * [taylor]: Taking taylor expansion of (* (pow x 2) (+ (* 1/6 x) 1/2)) in x
0.196 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.196 * [taylor]: Taking taylor expansion of x in x
0.196 * [taylor]: Taking taylor expansion of (+ (* 1/6 x) 1/2) in x
0.196 * [taylor]: Taking taylor expansion of (* 1/6 x) in x
0.196 * [taylor]: Taking taylor expansion of 1/6 in x
0.196 * [taylor]: Taking taylor expansion of x in x
0.196 * [taylor]: Taking taylor expansion of 1/2 in x
0.213 * [approximate]: Taking taylor expansion of (/ (+ 1/2 (* 1/6 (/ 1 x))) (pow x 2)) in (x) around 0
0.213 * [taylor]: Taking taylor expansion of (/ (+ 1/2 (* 1/6 (/ 1 x))) (pow x 2)) in x
0.213 * [taylor]: Taking taylor expansion of (+ 1/2 (* 1/6 (/ 1 x))) in x
0.213 * [taylor]: Taking taylor expansion of 1/2 in x
0.213 * [taylor]: Taking taylor expansion of (* 1/6 (/ 1 x)) in x
0.213 * [taylor]: Taking taylor expansion of 1/6 in x
0.213 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.213 * [taylor]: Taking taylor expansion of x in x
0.214 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.214 * [taylor]: Taking taylor expansion of x in x
0.215 * [taylor]: Taking taylor expansion of (/ (+ 1/2 (* 1/6 (/ 1 x))) (pow x 2)) in x
0.215 * [taylor]: Taking taylor expansion of (+ 1/2 (* 1/6 (/ 1 x))) in x
0.215 * [taylor]: Taking taylor expansion of 1/2 in x
0.215 * [taylor]: Taking taylor expansion of (* 1/6 (/ 1 x)) in x
0.215 * [taylor]: Taking taylor expansion of 1/6 in x
0.215 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.215 * [taylor]: Taking taylor expansion of x in x
0.215 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.215 * [taylor]: Taking taylor expansion of x in x
0.240 * [approximate]: Taking taylor expansion of (/ (- 1/2 (* 1/6 (/ 1 x))) (pow x 2)) in (x) around 0
0.240 * [taylor]: Taking taylor expansion of (/ (- 1/2 (* 1/6 (/ 1 x))) (pow x 2)) in x
0.240 * [taylor]: Taking taylor expansion of (- 1/2 (* 1/6 (/ 1 x))) in x
0.240 * [taylor]: Taking taylor expansion of 1/2 in x
0.240 * [taylor]: Taking taylor expansion of (* 1/6 (/ 1 x)) in x
0.240 * [taylor]: Taking taylor expansion of 1/6 in x
0.240 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.240 * [taylor]: Taking taylor expansion of x in x
0.241 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.241 * [taylor]: Taking taylor expansion of x in x
0.242 * [taylor]: Taking taylor expansion of (/ (- 1/2 (* 1/6 (/ 1 x))) (pow x 2)) in x
0.242 * [taylor]: Taking taylor expansion of (- 1/2 (* 1/6 (/ 1 x))) in x
0.242 * [taylor]: Taking taylor expansion of 1/2 in x
0.242 * [taylor]: Taking taylor expansion of (* 1/6 (/ 1 x)) in x
0.242 * [taylor]: Taking taylor expansion of 1/6 in x
0.242 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.242 * [taylor]: Taking taylor expansion of x in x
0.243 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.243 * [taylor]: Taking taylor expansion of x in x
0.265 * * * [progress]: simplifying candidates
0.266 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x 1/6)
  (+ (log x) (log 1/6))
  (log (* x 1/6))
  (exp (* x 1/6))
  (* (* (* x x) x) (* (* 1/6 1/6) 1/6))
  (* (cbrt (* x 1/6)) (cbrt (* x 1/6)))
  (cbrt (* x 1/6))
  (* (* (* x 1/6) (* x 1/6)) (* x 1/6))
  (sqrt (* x 1/6))
  (sqrt (* x 1/6))
  (* (sqrt x) (sqrt 1/6))
  (* (sqrt x) (sqrt 1/6))
  (* x (* (cbrt 1/6) (cbrt 1/6)))
  (* x (sqrt 1/6))
  (* x 1)
  (* (cbrt x) 1/6)
  (* (sqrt x) 1/6)
  (* x 1/6)
  (* (pow x 2) (+ (* x 1/6) 1/2))
  (+ (* (log x) 2) (log (+ (* x 1/6) 1/2)))
  (+ (* (log x) 2) (log (+ (* x 1/6) 1/2)))
  (+ (log (pow x 2)) (log (+ (* x 1/6) 1/2)))
  (log (* (pow x 2) (+ (* x 1/6) 1/2)))
  (exp (* (pow x 2) (+ (* x 1/6) 1/2)))
  (* (* (* (pow x 2) (pow x 2)) (pow x 2)) (* (* (+ (* x 1/6) 1/2) (+ (* x 1/6) 1/2)) (+ (* x 1/6) 1/2)))
  (* (cbrt (* (pow x 2) (+ (* x 1/6) 1/2))) (cbrt (* (pow x 2) (+ (* x 1/6) 1/2))))
  (cbrt (* (pow x 2) (+ (* x 1/6) 1/2)))
  (* (* (* (pow x 2) (+ (* x 1/6) 1/2)) (* (pow x 2) (+ (* x 1/6) 1/2))) (* (pow x 2) (+ (* x 1/6) 1/2)))
  (sqrt (* (pow x 2) (+ (* x 1/6) 1/2)))
  (sqrt (* (pow x 2) (+ (* x 1/6) 1/2)))
  (* (pow (sqrt x) 2) (sqrt (+ (* x 1/6) 1/2)))
  (* (pow (sqrt x) 2) (sqrt (+ (* x 1/6) 1/2)))
  (* x (sqrt (+ (* x 1/6) 1/2)))
  (* x (sqrt (+ (* x 1/6) 1/2)))
  (* (sqrt (pow x 2)) (sqrt (+ (* x 1/6) 1/2)))
  (* (sqrt (pow x 2)) (sqrt (+ (* x 1/6) 1/2)))
  (* (pow x (/ 2 2)) (sqrt (+ (* x 1/6) 1/2)))
  (* (pow x (/ 2 2)) (sqrt (+ (* x 1/6) 1/2)))
  (* (pow x 2) (* x 1/6))
  (* (pow x 2) 1/2)
  (* (pow x 2) 1/2)
  (* (pow x 2) (* x 1/6))
  (* (* x 1/6) (pow x 2))
  (* 1/2 (pow x 2))
  (* 1/2 (pow x 2))
  (* (* x 1/6) (pow x 2))
  (* (pow x 2) (* (cbrt (+ (* x 1/6) 1/2)) (cbrt (+ (* x 1/6) 1/2))))
  (* (pow x 2) (sqrt (+ (* x 1/6) 1/2)))
  (* (pow x 2) 1)
  (* (pow x 2) 1)
  (* (pow x 2) 1)
  (* (pow (cbrt x) 2) (+ (* x 1/6) 1/2))
  (* (pow (sqrt x) 2) (+ (* x 1/6) 1/2))
  (* (pow x 2) (+ (* x 1/6) 1/2))
  (* x (+ (* x 1/6) 1/2))
  (* (cbrt (pow x 2)) (+ (* x 1/6) 1/2))
  (* (sqrt (pow x 2)) (+ (* x 1/6) 1/2))
  (* (pow x 2) (+ (* x 1/6) 1/2))
  (* (pow x (/ 2 2)) (+ (* x 1/6) 1/2))
  (* (pow x 2) (+ (pow (* x 1/6) 3) (pow 1/2 3)))
  (* (pow x 2) (- (* (* x 1/6) (* x 1/6)) (* 1/2 1/2)))
  (* 1/6 x)
  (* 1/6 x)
  (* 1/6 x)
  (+ (* 1/2 (pow x 2)) (* 1/6 (pow x 3)))
  (+ (* 1/2 (pow x 2)) (* 1/6 (pow x 3)))
  (+ (* 1/2 (pow x 2)) (* 1/6 (pow x 3)))
0.270 * * [simplify]: iteration  0 :  244  enodes  (cost  254 )
0.277 * * [simplify]: iteration  1 :  1142  enodes  (cost  230 )
0.306 * * [simplify]: iteration  2 :  5002  enodes  (cost  230 )
0.308 * [simplify]: Simplified to:
   (* x 1/6)
  (log (* x 1/6))
  (log (* x 1/6))
  (exp (* x 1/6))
  (* (pow x 3) 1/216)
  (* (cbrt (* x 1/6)) (cbrt (* x 1/6)))
  (cbrt (* x 1/6))
  (* (pow x 3) 1/216)
  (sqrt (* x 1/6))
  (sqrt (* x 1/6))
  (* (sqrt x) (sqrt 1/6))
  (* (sqrt x) (sqrt 1/6))
  (* x (* (cbrt 1/6) (cbrt 1/6)))
  (* x (sqrt 1/6))
  x
  (* (cbrt x) 1/6)
  (* (sqrt x) 1/6)
  (* x 1/6)
  (* (pow x 2) (+ (* x 1/6) 1/2))
  (log (* (pow x 2) (+ (* x 1/6) 1/2)))
  (log (* (pow x 2) (+ (* x 1/6) 1/2)))
  (log (* (pow x 2) (+ (* x 1/6) 1/2)))
  (log (* (pow x 2) (+ (* x 1/6) 1/2)))
  (exp (* (pow x 2) (+ (* x 1/6) 1/2)))
  (pow (* (pow x 2) (+ (* x 1/6) 1/2)) 3)
  (* (cbrt (* (pow x 2) (+ (* x 1/6) 1/2))) (cbrt (* (pow x 2) (+ (* x 1/6) 1/2))))
  (cbrt (* (pow x 2) (+ (* x 1/6) 1/2)))
  (pow (* (pow x 2) (+ (* x 1/6) 1/2)) 3)
  (sqrt (* (pow x 2) (+ (* x 1/6) 1/2)))
  (sqrt (* (pow x 2) (+ (* x 1/6) 1/2)))
  (* (sqrt (+ (* x 1/6) 1/2)) x)
  (* (sqrt (+ (* x 1/6) 1/2)) x)
  (* (sqrt (+ (* x 1/6) 1/2)) x)
  (* (sqrt (+ (* x 1/6) 1/2)) x)
  (* (sqrt (pow x 2)) (sqrt (+ (* x 1/6) 1/2)))
  (* (sqrt (pow x 2)) (sqrt (+ (* x 1/6) 1/2)))
  (* (sqrt (+ (* x 1/6) 1/2)) x)
  (* (sqrt (+ (* x 1/6) 1/2)) x)
  (* (pow x 3) 1/6)
  (* (pow x 2) 1/2)
  (* (pow x 2) 1/2)
  (* (pow x 3) 1/6)
  (* (pow x 3) 1/6)
  (* (pow x 2) 1/2)
  (* (pow x 2) 1/2)
  (* (pow x 3) 1/6)
  (* (pow x 2) (* (cbrt (+ (* x 1/6) 1/2)) (cbrt (+ (* x 1/6) 1/2))))
  (* (pow x 2) (sqrt (+ (* x 1/6) 1/2)))
  (pow x 2)
  (pow x 2)
  (pow x 2)
  (* (pow (cbrt x) 2) (+ (* x 1/6) 1/2))
  (* (+ (* x 1/6) 1/2) x)
  (* (pow x 2) (+ (* x 1/6) 1/2))
  (* (+ (* x 1/6) 1/2) x)
  (* (cbrt (pow x 2)) (+ (* x 1/6) 1/2))
  (* (fabs x) (+ (* x 1/6) 1/2))
  (* (pow x 2) (+ (* x 1/6) 1/2))
  (* (+ (* x 1/6) 1/2) x)
  (* (pow x 2) (+ (pow (* x 1/6) 3) 1/8))
  (* (pow x 2) (- (* (* x 1/6) (* x 1/6)) 1/4))
  (* x 1/6)
  (* x 1/6)
  (* x 1/6)
  (* (pow x 2) (+ (* x 1/6) 1/2))
  (* (pow x 2) (+ (* x 1/6) 1/2))
  (* (pow x 2) (+ (* x 1/6) 1/2))
0.308 * * * [progress]: adding candidates to table
0.385 * [progress]: [Phase 3 of 3] Extracting.
0.385 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (- (exp x) 1.0))> #<alt (λ (x) (+ (* (pow x 2) (+ (* x 1/6) 1/2)) x))>)
0.385 * * * [regime-changes]: Trying 3 branch expressions: ((exp x) (- (exp x) 1.0) x)
0.385 * * * * [regimes]: Trying to branch on (exp x) from (#<alt (λ (x) (- (exp x) 1.0))> #<alt (λ (x) (+ (* (pow x 2) (+ (* x 1/6) 1/2)) x))>)
0.396 * * * * [regimes]: Trying to branch on (- (exp x) 1.0) from (#<alt (λ (x) (- (exp x) 1.0))> #<alt (λ (x) (+ (* (pow x 2) (+ (* x 1/6) 1/2)) x))>)
0.407 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (- (exp x) 1.0))> #<alt (λ (x) (+ (* (pow x 2) (+ (* x 1/6) 1/2)) x))>)
0.419 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
0.419 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* (pow x 2) (+ (* x 1/6) 1/2)) x)
0.420 * * [simplify]: iteration  0 :  13  enodes  (cost  5 )
0.420 * * [simplify]: iteration  1 :  13  enodes  (cost  5 )
0.420 * [simplify]: Simplified to:
   (+ (* (pow x 2) (+ (* x 1/6) 1/2)) x)
1.657 * [regime-testing]: Baseline error score: 0.484926502672569
1.658 * [regime-testing]: Oracle error score: 0.05347497905593007
1.659 * [regime-testing]: End program error score: 0.484926502672569
1.674 * [regime-testing]: Target error score: 0.49801652146644476