0.692 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.009 * * * [progress]: [2/2] Setting up program.
0.010 * [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
0.014 * * * [progress]: picking best candidate
0.016 * * * * [pick]: Picked  #<alt (λ (x) (/ (+ x 1.0) (- 1.0 x)))>
0.016 * * * [progress]: localizing error
0.020 * * * [progress]: generating rewritten candidates
0.020 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.034 * * * [progress]: generating series expansions
0.034 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.034 * [approximate]: Taking taylor expansion of (/ (+ x 1.0) (- 1.0 x)) in (x) around 0
0.034 * [taylor]: Taking taylor expansion of (/ (+ x 1.0) (- 1.0 x)) in x
0.034 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.034 * [taylor]: Taking taylor expansion of x in x
0.034 * [taylor]: Taking taylor expansion of 1.0 in x
0.034 * [taylor]: Taking taylor expansion of (- 1.0 x) in x
0.034 * [taylor]: Taking taylor expansion of 1.0 in x
0.034 * [taylor]: Taking taylor expansion of x in x
0.035 * [taylor]: Taking taylor expansion of (/ (+ x 1.0) (- 1.0 x)) in x
0.036 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.036 * [taylor]: Taking taylor expansion of x in x
0.036 * [taylor]: Taking taylor expansion of 1.0 in x
0.036 * [taylor]: Taking taylor expansion of (- 1.0 x) in x
0.036 * [taylor]: Taking taylor expansion of 1.0 in x
0.036 * [taylor]: Taking taylor expansion of x in x
0.047 * [approximate]: Taking taylor expansion of (/ (+ 1.0 (/ 1 x)) (- 1.0 (/ 1 x))) in (x) around 0
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
0.048 * [taylor]: Taking taylor expansion of (/ (+ 1.0 (/ 1 x)) (- 1.0 (/ 1 x))) in x
0.048 * [taylor]: Taking taylor expansion of (+ 1.0 (/ 1 x)) in x
0.048 * [taylor]: Taking taylor expansion of 1.0 in x
0.048 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.048 * [taylor]: Taking taylor expansion of x in x
0.049 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.049 * [taylor]: Taking taylor expansion of 1.0 in x
0.049 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.049 * [taylor]: Taking taylor expansion of x in x
0.059 * [approximate]: Taking taylor expansion of (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0)) in (x) around 0
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
0.059 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 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 1.0 in x
0.061 * [taylor]: Taking taylor expansion of (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0)) in x
0.061 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.061 * [taylor]: Taking taylor expansion of 1.0 in x
0.061 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.061 * [taylor]: Taking taylor expansion of x in x
0.061 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.061 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.061 * [taylor]: Taking taylor expansion of x in x
0.061 * [taylor]: Taking taylor expansion of 1.0 in x
0.070 * * * [progress]: simplifying candidates
0.071 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (/ (+ x 1.0) (- 1.0 x)))
  (log1p (/ (+ x 1.0) (- 1.0 x)))
  (- (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)))
0.074 * * [simplify]: iteration  0 :  93  enodes  (cost  646 )
0.089 * * [simplify]: iteration  1 :  216  enodes  (cost  616 )
0.128 * * [simplify]: iteration  2 :  599  enodes  (cost  584 )