12.638 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.009 * * * [progress]: [2/2] Setting up program.
0.011 * [progress]: [Phase 2 of 3] Improving.
0.011 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (+ x 1.0) (- 1.0 x))
0.012 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.012 * * [simplify]: iteration  1 :  8  enodes  (cost  7 )
0.013 * * [simplify]: iteration  2 :  9  enodes  (cost  7 )
0.014 * * [simplify]: iteration  done :  9  enodes  (cost  7 )
0.014 * [simplify]: Simplified to:
   (/ (+ x 1.0) (- 1.0 x))
0.014 * * [progress]: iteration 1 / 4
0.015 * * * [progress]: picking best candidate
0.016 * * * * [pick]: Picked  #<alt (λ (x) (/ (+ x 1.0) (- 1.0 x)))>
0.016 * * * [progress]: localizing error
0.023 * * * [progress]: generating rewritten candidates
0.023 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.037 * * * [progress]: generating series expansions
0.037 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.037 * [approximate]: Taking taylor expansion of (/ (+ x 1.0) (- 1.0 x)) in (x) around 0
0.037 * [taylor]: Taking taylor expansion of (/ (+ x 1.0) (- 1.0 x)) in x
0.037 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.037 * [taylor]: Taking taylor expansion of x in x
0.037 * [taylor]: Taking taylor expansion of 1.0 in x
0.037 * [taylor]: Taking taylor expansion of (- 1.0 x) in x
0.037 * [taylor]: Taking taylor expansion of 1.0 in x
0.037 * [taylor]: Taking taylor expansion of x in x
0.038 * [taylor]: Taking taylor expansion of (/ (+ x 1.0) (- 1.0 x)) in x
0.038 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.038 * [taylor]: Taking taylor expansion of x in x
0.038 * [taylor]: Taking taylor expansion of 1.0 in x
0.038 * [taylor]: Taking taylor expansion of (- 1.0 x) in x
0.038 * [taylor]: Taking taylor expansion of 1.0 in x
0.038 * [taylor]: Taking taylor expansion of x in x
0.045 * [approximate]: Taking taylor expansion of (/ (+ 1.0 (/ 1 x)) (- 1.0 (/ 1 x))) in (x) around 0
0.045 * [taylor]: Taking taylor expansion of (/ (+ 1.0 (/ 1 x)) (- 1.0 (/ 1 x))) in x
0.045 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
0.045 * [taylor]: Taking taylor expansion of 1.0 in x
0.045 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.045 * [taylor]: Taking taylor expansion of x in x
0.046 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.046 * [taylor]: Taking taylor expansion of 1.0 in x
0.046 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.046 * [taylor]: Taking taylor expansion of x in x
0.047 * [taylor]: Taking taylor expansion of (/ (+ 1.0 (/ 1 x)) (- 1.0 (/ 1 x))) in x
0.047 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
0.047 * [taylor]: Taking taylor expansion of 1.0 in x
0.047 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.047 * [taylor]: Taking taylor expansion of x in x
0.047 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.047 * [taylor]: Taking taylor expansion of 1.0 in x
0.047 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.047 * [taylor]: Taking taylor expansion of x in x
0.057 * [approximate]: Taking taylor expansion of (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0)) in (x) around 0
0.057 * [taylor]: Taking taylor expansion of (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0)) in x
0.057 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.057 * [taylor]: Taking taylor expansion of 1.0 in x
0.057 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.057 * [taylor]: Taking taylor expansion of x in x
0.058 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) 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 1.0 in x
0.059 * [taylor]: Taking taylor expansion of (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0)) in x
0.059 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.059 * [taylor]: Taking taylor expansion of 1.0 in x
0.059 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.059 * [taylor]: Taking taylor expansion of x in x
0.060 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.060 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.060 * [taylor]: Taking taylor expansion of x in x
0.060 * [taylor]: Taking taylor expansion of 1.0 in x
0.069 * * * [progress]: simplifying candidates
0.070 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (log (+ x 1.0)) (log (- 1.0 x)))
  (log (/ (+ x 1.0) (- 1.0 x)))
  (exp (/ (+ x 1.0) (- 1.0 x)))
  (/ (* (* (+ x 1.0) (+ x 1.0)) (+ x 1.0)) (* (* (- 1.0 x) (- 1.0 x)) (- 1.0 x)))
  (* (cbrt (/ (+ x 1.0) (- 1.0 x))) (cbrt (/ (+ x 1.0) (- 1.0 x))))
  (cbrt (/ (+ x 1.0) (- 1.0 x)))
  (* (* (/ (+ x 1.0) (- 1.0 x)) (/ (+ x 1.0) (- 1.0 x))) (/ (+ x 1.0) (- 1.0 x)))
  (sqrt (/ (+ x 1.0) (- 1.0 x)))
  (sqrt (/ (+ x 1.0) (- 1.0 x)))
  (- (+ x 1.0))
  (- (- 1.0 x))
  (/ (* (cbrt (+ x 1.0)) (cbrt (+ x 1.0))) (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (cbrt (+ x 1.0)) (cbrt (- 1.0 x)))
  (/ (* (cbrt (+ x 1.0)) (cbrt (+ x 1.0))) (sqrt (- 1.0 x)))
  (/ (cbrt (+ x 1.0)) (sqrt (- 1.0 x)))
  (/ (* (cbrt (+ x 1.0)) (cbrt (+ x 1.0))) 1)
  (/ (cbrt (+ x 1.0)) (- 1.0 x))
  (/ (* (cbrt (+ x 1.0)) (cbrt (+ x 1.0))) (+ (sqrt 1.0) (sqrt x)))
  (/ (cbrt (+ x 1.0)) (- (sqrt 1.0) (sqrt x)))
  (/ (* (cbrt (+ x 1.0)) (cbrt (+ x 1.0))) 1)
  (/ (cbrt (+ x 1.0)) (- 1.0 x))
  (/ (sqrt (+ x 1.0)) (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (sqrt (+ x 1.0)) (cbrt (- 1.0 x)))
  (/ (sqrt (+ x 1.0)) (sqrt (- 1.0 x)))
  (/ (sqrt (+ x 1.0)) (sqrt (- 1.0 x)))
  (/ (sqrt (+ x 1.0)) 1)
  (/ (sqrt (+ x 1.0)) (- 1.0 x))
  (/ (sqrt (+ x 1.0)) (+ (sqrt 1.0) (sqrt x)))
  (/ (sqrt (+ x 1.0)) (- (sqrt 1.0) (sqrt x)))
  (/ (sqrt (+ x 1.0)) 1)
  (/ (sqrt (+ x 1.0)) (- 1.0 x))
  (/ 1 (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (+ x 1.0) (cbrt (- 1.0 x)))
  (/ 1 (sqrt (- 1.0 x)))
  (/ (+ x 1.0) (sqrt (- 1.0 x)))
  (/ 1 1)
  (/ (+ x 1.0) (- 1.0 x))
  (/ 1 (+ (sqrt 1.0) (sqrt x)))
  (/ (+ x 1.0) (- (sqrt 1.0) (sqrt x)))
  (/ 1 1)
  (/ (+ x 1.0) (- 1.0 x))
  (/ 1 (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (+ x 1.0) (cbrt (- 1.0 x)))
  (/ 1 (sqrt (- 1.0 x)))
  (/ (+ x 1.0) (sqrt (- 1.0 x)))
  (/ 1 1)
  (/ (+ x 1.0) (- 1.0 x))
  (/ 1 (+ (sqrt 1.0) (sqrt x)))
  (/ (+ x 1.0) (- (sqrt 1.0) (sqrt x)))
  (/ 1 1)
  (/ (+ x 1.0) (- 1.0 x))
  (/ 1 (- 1.0 x))
  (/ (- 1.0 x) (+ x 1.0))
  (/ (+ x 1.0) (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (+ x 1.0) (sqrt (- 1.0 x)))
  (/ (+ x 1.0) 1)
  (/ (+ x 1.0) (+ (sqrt 1.0) (sqrt x)))
  (/ (+ x 1.0) 1)
  (/ (- 1.0 x) (cbrt (+ x 1.0)))
  (/ (- 1.0 x) (sqrt (+ x 1.0)))
  (/ (- 1.0 x) (+ x 1.0))
  (/ (- 1.0 x) (+ x 1.0))
  (/ (+ x 1.0) (- (pow 1.0 3) (pow x 3)))
  (/ (+ x 1.0) (- (* 1.0 1.0) (* x x)))
  (* (- 1.0 x) (+ (* x x) (- (* 1.0 1.0) (* x 1.0))))
  (* (- 1.0 x) (- x 1.0))
  (+ (* 2.0 (pow x 2)) (+ (* 2.0 x) 1.0))
  (- (+ (* 2.0 (/ 1 (pow x 2))) (+ (* 2.0 (/ 1 x)) 1)))
  (- (+ (* 2.0 (/ 1 (pow x 2))) (+ (* 2.0 (/ 1 x)) 1)))
0.073 * * [simplify]: iteration  0 :  91  enodes  (cost  630 )
0.089 * * [simplify]: iteration  1 :  206  enodes  (cost  607 )
0.137 * * [simplify]: iteration  2 :  532  enodes  (cost  569 )
0.346 * * [simplify]: iteration  3 :  1288  enodes  (cost  560 )
1.405 * * [simplify]: iteration  4 :  3467  enodes  (cost  560 )
2.258 * * [simplify]: iteration  done :  5001  enodes  (cost  560 )
2.258 * [simplify]: Simplified to:
   (log (/ (+ x 1.0) (- 1.0 x)))
  (log (/ (+ x 1.0) (- 1.0 x)))
  (exp (/ (+ x 1.0) (- 1.0 x)))
  (pow (/ (+ x 1.0) (- 1.0 x)) 3)
  (* (cbrt (/ (+ x 1.0) (- 1.0 x))) (cbrt (/ (+ x 1.0) (- 1.0 x))))
  (cbrt (/ (+ x 1.0) (- 1.0 x)))
  (pow (/ (+ x 1.0) (- 1.0 x)) 3)
  (sqrt (/ (+ x 1.0) (- 1.0 x)))
  (sqrt (/ (+ x 1.0) (- 1.0 x)))
  (- (+ x 1.0))
  (- x 1.0)
  (/ (* (cbrt (+ x 1.0)) (cbrt (+ x 1.0))) (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (cbrt (+ x 1.0)) (cbrt (- 1.0 x)))
  (/ (* (cbrt (+ x 1.0)) (cbrt (+ x 1.0))) (sqrt (- 1.0 x)))
  (/ (cbrt (+ x 1.0)) (sqrt (- 1.0 x)))
  (* (cbrt (+ x 1.0)) (cbrt (+ x 1.0)))
  (/ (cbrt (+ x 1.0)) (- 1.0 x))
  (/ (* (cbrt (+ x 1.0)) (cbrt (+ x 1.0))) (+ (sqrt 1.0) (sqrt x)))
  (/ (cbrt (+ x 1.0)) (- (sqrt 1.0) (sqrt x)))
  (* (cbrt (+ x 1.0)) (cbrt (+ x 1.0)))
  (/ (cbrt (+ x 1.0)) (- 1.0 x))
  (/ (sqrt (+ x 1.0)) (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (sqrt (+ x 1.0)) (cbrt (- 1.0 x)))
  (/ (sqrt (+ x 1.0)) (sqrt (- 1.0 x)))
  (/ (sqrt (+ x 1.0)) (sqrt (- 1.0 x)))
  (sqrt (+ x 1.0))
  (/ (sqrt (+ x 1.0)) (- 1.0 x))
  (/ (sqrt (+ x 1.0)) (+ (sqrt 1.0) (sqrt x)))
  (/ (sqrt (+ x 1.0)) (- (sqrt 1.0) (sqrt x)))
  (sqrt (+ x 1.0))
  (/ (sqrt (+ x 1.0)) (- 1.0 x))
  (/ 1 (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (+ x 1.0) (cbrt (- 1.0 x)))
  (/ 1 (sqrt (- 1.0 x)))
  (/ (+ x 1.0) (sqrt (- 1.0 x)))
  1
  (/ (+ x 1.0) (- 1.0 x))
  (/ 1 (+ (sqrt 1.0) (sqrt x)))
  (/ (+ x 1.0) (- (sqrt 1.0) (sqrt x)))
  1
  (/ (+ x 1.0) (- 1.0 x))
  (/ 1 (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (+ x 1.0) (cbrt (- 1.0 x)))
  (/ 1 (sqrt (- 1.0 x)))
  (/ (+ x 1.0) (sqrt (- 1.0 x)))
  1
  (/ (+ x 1.0) (- 1.0 x))
  (/ 1 (+ (sqrt 1.0) (sqrt x)))
  (/ (+ x 1.0) (- (sqrt 1.0) (sqrt x)))
  1
  (/ (+ x 1.0) (- 1.0 x))
  (/ 1 (- 1.0 x))
  (/ (- 1.0 x) (+ x 1.0))
  (/ (+ x 1.0) (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (+ x 1.0) (sqrt (- 1.0 x)))
  (+ x 1.0)
  (/ (+ x 1.0) (+ (sqrt 1.0) (sqrt x)))
  (+ x 1.0)
  (/ (- 1.0 x) (cbrt (+ x 1.0)))
  (/ (- 1.0 x) (sqrt (+ x 1.0)))
  (/ (- 1.0 x) (+ x 1.0))
  (/ (- 1.0 x) (+ x 1.0))
  (/ (+ x 1.0) (- (pow 1.0 3) (pow x 3)))
  (/ 1 (- 1.0 x))
  (* (+ (pow x 2) (* 1.0 (- 1.0 x))) (- 1.0 x))
  (* (- 1.0 x) (- x 1.0))
  (+ (* 2.0 (+ (* x x) x)) 1.0)
  (- (- -1 (/ 2.0 x)) (/ 2.0 (* x x)))
  (- (- -1 (/ 2.0 x)) (/ 2.0 (* x x)))
2.259 * * * [progress]: adding candidates to table
2.332 * * [progress]: iteration 2 / 4
2.332 * * * [progress]: picking best candidate
2.335 * * * * [pick]: Picked  #<alt (λ (x) (+ (* 2.0 (+ (* x x) x)) 1.0))>
2.336 * * * [progress]: localizing error
2.341 * * * [progress]: generating rewritten candidates
2.341 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1 2)
2.344 * * * [progress]: generating series expansions
2.344 * * * * [progress]: [ 1 / 1 ] generating series at (2 1 2)
2.344 * [approximate]: Taking taylor expansion of (+ (pow x 2) x) in (x) around 0
2.344 * [taylor]: Taking taylor expansion of (+ (pow x 2) x) in x
2.344 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.344 * [taylor]: Taking taylor expansion of x in x
2.344 * [taylor]: Taking taylor expansion of x in x
2.344 * [taylor]: Taking taylor expansion of (+ (pow x 2) x) in x
2.345 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.345 * [taylor]: Taking taylor expansion of x in x
2.345 * [taylor]: Taking taylor expansion of x in x
2.351 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 x)) in (x) around 0
2.352 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 x)) in x
2.352 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.352 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.352 * [taylor]: Taking taylor expansion of x in x
2.352 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.352 * [taylor]: Taking taylor expansion of x in x
2.352 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 x)) in x
2.352 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.352 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.352 * [taylor]: Taking taylor expansion of x in x
2.353 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.353 * [taylor]: Taking taylor expansion of x in x
2.366 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 x)) in (x) around 0
2.366 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 x)) in x
2.366 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.366 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.366 * [taylor]: Taking taylor expansion of x in x
2.366 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.366 * [taylor]: Taking taylor expansion of x in x
2.367 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 x)) in x
2.367 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.367 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.367 * [taylor]: Taking taylor expansion of x in x
2.367 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.367 * [taylor]: Taking taylor expansion of x in x
2.381 * * * [progress]: simplifying candidates
2.382 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (exp (* x x)) (exp x))
  (log (+ (* x x) x))
  (exp (+ (* x x) x))
  (* (cbrt (+ (* x x) x)) (cbrt (+ (* x x) x)))
  (cbrt (+ (* x x) x))
  (* (* (+ (* x x) x) (+ (* x x) x)) (+ (* x x) x))
  (sqrt (+ (* x x) x))
  (sqrt (+ (* x x) x))
  (+ (pow (* x x) 3) (pow x 3))
  (+ (* (* x x) (* x x)) (- (* x x) (* (* x x) x)))
  (- (* (* x x) (* x x)) (* x x))
  (- (* x x) x)
  (+ x 1)
  (+ x 1)
  (+ (pow x 2) x)
  (+ (pow x 2) x)
  (+ (pow x 2) x)
2.383 * * [simplify]: iteration  0 :  28  enodes  (cost  130 )
2.389 * * [simplify]: iteration  1 :  77  enodes  (cost  123 )
2.411 * * [simplify]: iteration  2 :  253  enodes  (cost  107 )
2.523 * * [simplify]: iteration  3 :  821  enodes  (cost  107 )
4.162 * * [simplify]: iteration  4 :  4040  enodes  (cost  107 )
5.456 * * [simplify]: iteration  done :  5001  enodes  (cost  107 )
5.456 * [simplify]: Simplified to:
   (exp (+ (* x x) x))
  (log (+ (* x x) x))
  (exp (+ (* x x) x))
  (* (cbrt (+ (* x x) x)) (cbrt (+ (* x x) x)))
  (cbrt (+ (* x x) x))
  (pow (+ (* x x) x) 3)
  (sqrt (+ (* x x) x))
  (sqrt (+ (* x x) x))
  (+ (pow x 3) (pow x 6))
  (* x (+ (- x (* x x)) (pow x 3)))
  (* x (- (pow x 3) x))
  (- (* x x) x)
  (+ x 1)
  (+ x 1)
  (* x (+ x 1))
  (* x (+ x 1))
  (* x (+ x 1))
5.456 * * * [progress]: adding candidates to table
5.487 * [progress]: [Phase 3 of 3] Extracting.
5.487 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (/ (+ x 1.0) (- 1.0 x)))> #<alt (λ (x) (+ (* 2.0 (+ (* x x) x)) 1.0))>)
5.487 * * * [regime-changes]: Trying 2 branch expressions: ((/ (+ x 1.0) (- 1.0 x)) x)
5.487 * * * * [regimes]: Trying to branch on (/ (+ x 1.0) (- 1.0 x)) from (#<alt (λ (x) (/ (+ x 1.0) (- 1.0 x)))> #<alt (λ (x) (+ (* 2.0 (+ (* x x) x)) 1.0))>)
5.495 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (/ (+ x 1.0) (- 1.0 x)))> #<alt (λ (x) (+ (* 2.0 (+ (* x x) x)) 1.0))>)
5.504 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
5.505 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (+ x 1.0) (- 1.0 x))
5.505 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
5.505 * * [simplify]: iteration  1 :  6  enodes  (cost  7 )
5.505 * * [simplify]: iteration  done :  6  enodes  (cost  7 )
5.505 * [simplify]: Simplified to:
   (/ (+ x 1.0) (- 1.0 x))
5.783 * [regime-testing]: Baseline error score: 0.009751218902362795
5.784 * [regime-testing]: Oracle error score: 0.0037504688086010753
5.784 * [regime-testing]: End program error score: 0.009751218902362795