2.921 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.058 * * * [progress]: [2/2] Setting up program.
0.060 * [progress]: [Phase 2 of 3] Improving.
0.060 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (log (+ 1.0 x))
0.062 * * [simplify]: iteration  0 :  5  enodes  (cost  2 )
0.063 * * [simplify]: iteration  1 :  5  enodes  (cost  2 )
0.063 * [simplify]: Simplified to:
   (log (+ 1.0 x))
0.064 * * [progress]: iteration 1 / 4
0.064 * * * [progress]: picking best candidate
0.065 * * * * [pick]: Picked  #<alt (λ (x) (log (+ 1.0 x)))>
0.065 * * * [progress]: localizing error
0.069 * * * [progress]: generating rewritten candidates
0.069 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.072 * * * [progress]: generating series expansions
0.072 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.072 * [approximate]: Taking taylor expansion of (log (+ x 1.0)) in (x) around 0
0.072 * [taylor]: Taking taylor expansion of (log (+ x 1.0)) in x
0.072 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.072 * [taylor]: Taking taylor expansion of x in x
0.072 * [taylor]: Taking taylor expansion of 1.0 in x
0.073 * [taylor]: Taking taylor expansion of (log (+ x 1.0)) in x
0.073 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.073 * [taylor]: Taking taylor expansion of x in x
0.073 * [taylor]: Taking taylor expansion of 1.0 in x
0.085 * [approximate]: Taking taylor expansion of (log (+ (/ 1 x) 1.0)) in (x) around 0
0.085 * [taylor]: Taking taylor expansion of (log (+ (/ 1 x) 1.0)) in x
0.085 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.085 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.085 * [taylor]: Taking taylor expansion of x in x
0.085 * [taylor]: Taking taylor expansion of 1.0 in x
0.086 * [taylor]: Taking taylor expansion of (log (+ (/ 1 x) 1.0)) in x
0.086 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.086 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.086 * [taylor]: Taking taylor expansion of x in x
0.086 * [taylor]: Taking taylor expansion of 1.0 in x
0.098 * [approximate]: Taking taylor expansion of (log (- 1.0 (/ 1 x))) in (x) around 0
0.098 * [taylor]: Taking taylor expansion of (log (- 1.0 (/ 1 x))) in x
0.098 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.099 * [taylor]: Taking taylor expansion of 1.0 in x
0.099 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.099 * [taylor]: Taking taylor expansion of x in x
0.100 * [taylor]: Taking taylor expansion of (log (- 1.0 (/ 1 x))) in x
0.100 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.100 * [taylor]: Taking taylor expansion of 1.0 in x
0.100 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.100 * [taylor]: Taking taylor expansion of x in x
0.119 * * * [progress]: simplifying candidates
0.119 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (log (+ 1.0 x)))
  (log1p (log (+ 1.0 x)))
  (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))))
0.123 * * [simplify]: iteration  0 :  131  enodes  (cost  99 )
0.126 * * [simplify]: iteration  1 :  363  enodes  (cost  89 )
0.132 * * [simplify]: iteration  2 :  1292  enodes  (cost  86 )
0.159 * * [simplify]: iteration  3 :  5002  enodes  (cost  81 )
0.160 * [simplify]: Simplified to:
   (expm1 (log (+ 1.0 x)))
  (log1p (log (+ 1.0 x)))
  (* 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)))
  (fma x 1.0 (- (log 1.0) (* 1/2 (/ (pow x 2) (pow 1.0 2)))))
  (fma (/ 1 x) (- 1.0 (/ 0.5 x)) (log x))
  (fma (/ 1 x) (- 1.0 (/ 0.5 x)) (log x))
0.160 * * * [progress]: adding candidates to table
0.197 * * [progress]: iteration 2 / 4
0.197 * * * [progress]: picking best candidate
0.204 * * * * [pick]: Picked  #<alt (λ (x) (fma x 1.0 (- (log 1.0) (* 1/2 (/ (pow x 2) (pow 1.0 2))))))>
0.204 * * * [progress]: localizing error
0.214 * * * [progress]: generating rewritten candidates
0.214 * * * [progress]: generating series expansions
0.214 * * * [progress]: simplifying candidates
0.214 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.216 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.216 * [simplify]: Simplified to:
   
0.216 * * * [progress]: adding candidates to table
0.217 * [progress]: [Phase 3 of 3] Extracting.
0.217 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (log (+ 1.0 x)))> #<alt (λ (x) (fma x 1.0 (- (log 1.0) (* 1/2 (/ (pow x 2) (pow 1.0 2))))))>)
0.217 * * * [regime-changes]: Trying 3 branch expressions: ((+ 1.0 x) (log (+ 1.0 x)) x)
0.217 * * * * [regimes]: Trying to branch on (+ 1.0 x) from (#<alt (λ (x) (log (+ 1.0 x)))> #<alt (λ (x) (fma x 1.0 (- (log 1.0) (* 1/2 (/ (pow x 2) (pow 1.0 2))))))>)
0.229 * * * * [regimes]: Trying to branch on (log (+ 1.0 x)) from (#<alt (λ (x) (log (+ 1.0 x)))> #<alt (λ (x) (fma x 1.0 (- (log 1.0) (* 1/2 (/ (pow x 2) (pow 1.0 2))))))>)
0.244 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (log (+ 1.0 x)))> #<alt (λ (x) (fma x 1.0 (- (log 1.0) (* 1/2 (/ (pow x 2) (pow 1.0 2))))))>)
0.260 * * * [regime]: Found split indices: #<option (#s(si 1 163) #s(si 0 255))>
0.262 * [binary-search]: Only using regimes for bounds on (+ 1.0 x) and (#<alt (λ (x) (log (+ 1.0 x)))> #<alt (λ (x) (fma x 1.0 (- (log 1.0) (* 1/2 (/ (pow x 2) (pow 1.0 2))))))>)
0.262 * [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) (fma x 1.0 (- (log 1.0) (* 1/2 (/ (pow x 2) (pow 1.0 2))))))>)
0.262 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (if (<= (+ 1.0 x) 1.000000000143161) (fma x 1.0 (- (log 1.0) (* 1/2 (/ (pow x 2) (pow 1.0 2))))) (log (+ 1.0 x)))
0.263 * * [simplify]: iteration  0 :  18  enodes  (cost  10 )
0.263 * * [simplify]: iteration  1 :  18  enodes  (cost  10 )
0.263 * [simplify]: Simplified to:
   (if (<= (+ 1.0 x) 1.000000000143161) (fma x 1.0 (- (log 1.0) (* 1/2 (/ (pow x 2) (pow 1.0 2))))) (log (+ 1.0 x)))
2.095 * [regime-testing]: Baseline error score: 21.4661083076642
2.096 * [regime-testing]: Oracle error score: 0.11093695957575904
2.097 * [regime-testing]: End program error score: 0.39214689619557425
2.125 * [regime-testing]: Target error score: 0.1682710338792349