3.160 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.059 * * * [progress]: [2/2] Setting up program.
0.061 * [progress]: [Phase 2 of 3] Improving.
0.061 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (log (+ 1.0 x))
0.063 * * [simplify]: iteration  0 :  5  enodes  (cost  2 )
0.064 * * [simplify]: iteration  1 :  5  enodes  (cost  2 )
0.064 * [simplify]: Simplified to:
   (log (+ 1.0 x))
0.065 * * [progress]: iteration 1 / 4
0.065 * * * [progress]: picking best candidate
0.066 * * * * [pick]: Picked  #<alt (λ (x) (log (+ 1.0 x)))>
0.066 * * * [progress]: localizing error
0.072 * * * [progress]: generating rewritten candidates
0.072 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.075 * * * [progress]: generating series expansions
0.076 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.076 * [approximate]: Taking taylor expansion of (log (+ x 1.0)) in (x) around 0
0.076 * [taylor]: Taking taylor expansion of (log (+ x 1.0)) in x
0.076 * [taylor]: Taking taylor expansion of (+ x 1.0) 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 (log (+ x 1.0)) in x
0.077 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.077 * [taylor]: Taking taylor expansion of x in x
0.077 * [taylor]: Taking taylor expansion of 1.0 in x
0.088 * [approximate]: Taking taylor expansion of (log (+ (/ 1 x) 1.0)) in (x) around 0
0.088 * [taylor]: Taking taylor expansion of (log (+ (/ 1 x) 1.0)) in x
0.088 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.088 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.089 * [taylor]: Taking taylor expansion of x in x
0.089 * [taylor]: Taking taylor expansion of 1.0 in x
0.089 * [taylor]: Taking taylor expansion of (log (+ (/ 1 x) 1.0)) in x
0.089 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.089 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.089 * [taylor]: Taking taylor expansion of x in x
0.090 * [taylor]: Taking taylor expansion of 1.0 in x
0.102 * [approximate]: Taking taylor expansion of (log (- 1.0 (/ 1 x))) in (x) around 0
0.102 * [taylor]: Taking taylor expansion of (log (- 1.0 (/ 1 x))) in x
0.102 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.102 * [taylor]: Taking taylor expansion of 1.0 in x
0.102 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.102 * [taylor]: Taking taylor expansion of x in x
0.103 * [taylor]: Taking taylor expansion of (log (- 1.0 (/ 1 x))) in x
0.103 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.103 * [taylor]: Taking taylor expansion of 1.0 in x
0.103 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.103 * [taylor]: Taking taylor expansion of x in x
0.117 * * * [progress]: simplifying candidates
0.118 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (log (* (cbrt (+ 1.0 x)) (cbrt (+ 1.0 x))))
  (log (cbrt (+ 1.0 x)))
  (log (sqrt (+ 1.0 x)))
  (log (sqrt (+ 1.0 x)))
  (log 1)
  (log (+ 1.0 x))
  (log 1)
  (log (+ 1.0 x))
  (log (+ (pow 1.0 3) (pow x 3)))
  (log (+ (* 1.0 1.0) (- (* x x) (* 1.0 x))))
  (log (- (* 1.0 1.0) (* x x)))
  (log (- 1.0 x))
  (log (+ 1.0 x))
  (log (log (+ 1.0 x)))
  (exp (log (+ 1.0 x)))
  (* (cbrt (log (+ 1.0 x))) (cbrt (log (+ 1.0 x))))
  (cbrt (log (+ 1.0 x)))
  (* (* (log (+ 1.0 x)) (log (+ 1.0 x))) (log (+ 1.0 x)))
  (sqrt (log (+ 1.0 x)))
  (sqrt (log (+ 1.0 x)))
  (- (+ (* 1.0 x) (log 1.0)) (* 1/2 (/ (pow x 2) (pow 1.0 2))))
  (- (* 1.0 (/ 1 x)) (+ (* 0.5 (/ 1 (pow x 2))) (log (/ 1 x))))
  (- (+ (log -1) (* 1.0 (/ 1 x))) (+ (* 0.5 (/ 1 (pow x 2))) (log (/ -1 x))))
0.121 * * [simplify]: iteration  0 :  122  enodes  (cost  95 )
0.123 * * [simplify]: iteration  1 :  327  enodes  (cost  86 )
0.129 * * [simplify]: iteration  2 :  1161  enodes  (cost  81 )
0.156 * * [simplify]: iteration  3 :  5002  enodes  (cost  78 )
0.157 * [simplify]: Simplified to:
   (* 2 (log (cbrt (+ 1.0 x))))
  (log (cbrt (+ 1.0 x)))
  (log (sqrt (+ 1.0 x)))
  (log (sqrt (+ 1.0 x)))
  0
  (log (+ 1.0 x))
  0
  (log (+ 1.0 x))
  (log (+ (pow 1.0 3) (pow x 3)))
  (log (+ (* 1.0 1.0) (- (* x x) (* 1.0 x))))
  (log (- (* 1.0 1.0) (* x x)))
  (log (- 1.0 x))
  (log (+ 1.0 x))
  (log (log (+ 1.0 x)))
  (+ 1.0 x)
  (* (cbrt (log (+ 1.0 x))) (cbrt (log (+ 1.0 x))))
  (cbrt (log (+ 1.0 x)))
  (pow (log (+ 1.0 x)) 3)
  (sqrt (log (+ 1.0 x)))
  (sqrt (log (+ 1.0 x)))
  (- (+ (* 1.0 x) (log 1.0)) (* 1/2 (/ (pow x 2) (pow 1.0 2))))
  (- (/ 1.0 x) (- (/ (/ 0.5 x) x) (log x)))
  (- (/ 1.0 x) (- (/ (/ 0.5 x) x) (log x)))
0.157 * * * [progress]: adding candidates to table
0.191 * * [progress]: iteration 2 / 4
0.192 * * * [progress]: picking best candidate
0.194 * * * * [pick]: Picked  #<alt (λ (x) (- (+ (* 1.0 x) (log 1.0)) (* 1/2 (/ (pow x 2) (pow 1.0 2)))))>
0.194 * * * [progress]: localizing error
0.204 * * * [progress]: generating rewritten candidates
0.204 * * * [progress]: generating series expansions
0.204 * * * [progress]: simplifying candidates
0.205 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.207 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.207 * [simplify]: Simplified to:
   
0.207 * * * [progress]: adding candidates to table
0.207 * [progress]: [Phase 3 of 3] Extracting.
0.207 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (log (+ 1.0 x)))> #<alt (λ (x) (- (+ (* 1.0 x) (log 1.0)) (* 1/2 (/ (pow x 2) (pow 1.0 2)))))>)
0.207 * * * [regime-changes]: Trying 3 branch expressions: ((+ 1.0 x) (log (+ 1.0 x)) x)
0.207 * * * * [regimes]: Trying to branch on (+ 1.0 x) from (#<alt (λ (x) (log (+ 1.0 x)))> #<alt (λ (x) (- (+ (* 1.0 x) (log 1.0)) (* 1/2 (/ (pow x 2) (pow 1.0 2)))))>)
0.218 * * * * [regimes]: Trying to branch on (log (+ 1.0 x)) from (#<alt (λ (x) (log (+ 1.0 x)))> #<alt (λ (x) (- (+ (* 1.0 x) (log 1.0)) (* 1/2 (/ (pow x 2) (pow 1.0 2)))))>)
0.236 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (log (+ 1.0 x)))> #<alt (λ (x) (- (+ (* 1.0 x) (log 1.0)) (* 1/2 (/ (pow x 2) (pow 1.0 2)))))>)
0.249 * * * [regime]: Found split indices: #<option (#s(si 1 163) #s(si 0 255))>
0.250 * [binary-search]: Only using regimes for bounds on (+ 1.0 x) and (#<alt (λ (x) (log (+ 1.0 x)))> #<alt (λ (x) (- (+ (* 1.0 x) (log 1.0)) (* 1/2 (/ (pow x 2) (pow 1.0 2)))))>)
0.250 * [regimes]: Found splitpoints: (#s(sp 1 (+ 1.0 x) 1.000000000143161) #s(sp 0 (+ 1.0 x) +nan.0)) , with alts (#<alt (λ (x) (log (+ 1.0 x)))> #<alt (λ (x) (- (+ (* 1.0 x) (log 1.0)) (* 1/2 (/ (pow x 2) (pow 1.0 2)))))>)
0.250 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (if (<= (+ 1.0 x) 1.000000000143161) (- (+ (* 1.0 x) (log 1.0)) (* 1/2 (/ (pow x 2) (pow 1.0 2)))) (log (+ 1.0 x)))
0.251 * * [simplify]: iteration  0 :  21  enodes  (cost  11 )
0.251 * * [simplify]: iteration  1 :  21  enodes  (cost  11 )
0.251 * [simplify]: Simplified to:
   (if (<= (+ 1.0 x) 1.000000000143161) (- (+ (* 1.0 x) (log 1.0)) (* 1/2 (/ (pow x 2) (pow 1.0 2)))) (log (+ 1.0 x)))
2.079 * [regime-testing]: Baseline error score: 21.4661083076642
2.080 * [regime-testing]: Oracle error score: 0.11093695957575904
2.081 * [regime-testing]: End program error score: 0.39214689619557425
2.106 * [regime-testing]: Target error score: 0.1682710338792349