0.418 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.095 * * * [progress]: [2/2] Setting up program.
0.097 * [progress]: [Phase 2 of 3] Improving.
0.097 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (/ 1.0 2.0) (log (/ (+ 1.0 x) (- 1.0 x))))
0.098 * * [simplify]: iteration  0 :  9  enodes  (cost  12 )
0.099 * * [simplify]: iteration  1 :  18  enodes  (cost  12 )
0.101 * * [simplify]: iteration  2 :  24  enodes  (cost  12 )
0.104 * * [simplify]: iteration  3 :  39  enodes  (cost  12 )
0.109 * * [simplify]: iteration  4 :  62  enodes  (cost  12 )
0.116 * * [simplify]: iteration  5 :  89  enodes  (cost  12 )
0.130 * * [simplify]: iteration  6 :  110  enodes  (cost  12 )
0.144 * * [simplify]: iteration  7 :  121  enodes  (cost  12 )
0.159 * * [simplify]: iteration  8 :  123  enodes  (cost  12 )
0.177 * * [simplify]: iteration  done :  123  enodes  (cost  12 )
0.177 * [simplify]: Simplified to:
   (* (/ 1.0 2.0) (log (/ (+ 1.0 x) (- 1.0 x))))
0.177 * * [progress]: iteration 1 / 4
0.177 * * * [progress]: picking best candidate
0.178 * * * * [pick]: Picked  #<alt (λ (x) (* (/ 1.0 2.0) (log (/ (+ 1.0 x) (- 1.0 x)))))>
0.179 * * * [progress]: localizing error
0.186 * * * [progress]: generating rewritten candidates
0.186 * * * * [progress]: [ 1 / 2 ] rewriting at (2 2)
0.192 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2 1)
0.207 * * * [progress]: generating series expansions
0.207 * * * * [progress]: [ 1 / 2 ] generating series at (2 2)
0.207 * [approximate]: Taking taylor expansion of (log (/ (+ x 1.0) (- 1.0 x))) in (x) around 0
0.207 * [taylor]: Taking taylor expansion of (log (/ (+ x 1.0) (- 1.0 x))) in x
0.207 * [taylor]: Taking taylor expansion of (/ (+ x 1.0) (- 1.0 x)) in x
0.207 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.207 * [taylor]: Taking taylor expansion of x in x
0.207 * [taylor]: Taking taylor expansion of 1.0 in x
0.207 * [taylor]: Taking taylor expansion of (- 1.0 x) in x
0.207 * [taylor]: Taking taylor expansion of 1.0 in x
0.207 * [taylor]: Taking taylor expansion of x in x
0.209 * [taylor]: Taking taylor expansion of (log (/ (+ x 1.0) (- 1.0 x))) in x
0.209 * [taylor]: Taking taylor expansion of (/ (+ x 1.0) (- 1.0 x)) in x
0.209 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.209 * [taylor]: Taking taylor expansion of x in x
0.209 * [taylor]: Taking taylor expansion of 1.0 in x
0.209 * [taylor]: Taking taylor expansion of (- 1.0 x) in x
0.209 * [taylor]: Taking taylor expansion of 1.0 in x
0.209 * [taylor]: Taking taylor expansion of x in x
0.234 * [approximate]: Taking taylor expansion of (log (/ (+ (/ 1 x) 1.0) (- 1.0 (/ 1 x)))) in (x) around 0
0.234 * [taylor]: Taking taylor expansion of (log (/ (+ (/ 1 x) 1.0) (- 1.0 (/ 1 x)))) in x
0.234 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 x) 1.0) (- 1.0 (/ 1 x))) in x
0.234 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.234 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.234 * [taylor]: Taking taylor expansion of x in x
0.234 * [taylor]: Taking taylor expansion of 1.0 in x
0.234 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.234 * [taylor]: Taking taylor expansion of 1.0 in x
0.234 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.234 * [taylor]: Taking taylor expansion of x in x
0.235 * [taylor]: Taking taylor expansion of (log (/ (+ (/ 1 x) 1.0) (- 1.0 (/ 1 x)))) in x
0.236 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 x) 1.0) (- 1.0 (/ 1 x))) in x
0.236 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.236 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.236 * [taylor]: Taking taylor expansion of x in x
0.236 * [taylor]: Taking taylor expansion of 1.0 in x
0.236 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.236 * [taylor]: Taking taylor expansion of 1.0 in x
0.236 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.236 * [taylor]: Taking taylor expansion of x in x
0.283 * [approximate]: Taking taylor expansion of (log (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0))) in (x) around 0
0.283 * [taylor]: Taking taylor expansion of (log (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0))) in x
0.283 * [taylor]: Taking taylor expansion of (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0)) in x
0.283 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.283 * [taylor]: Taking taylor expansion of 1.0 in x
0.283 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.283 * [taylor]: Taking taylor expansion of x in x
0.283 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.283 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.283 * [taylor]: Taking taylor expansion of x in x
0.283 * [taylor]: Taking taylor expansion of 1.0 in x
0.285 * [taylor]: Taking taylor expansion of (log (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0))) in x
0.285 * [taylor]: Taking taylor expansion of (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0)) in x
0.285 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.285 * [taylor]: Taking taylor expansion of 1.0 in x
0.285 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.285 * [taylor]: Taking taylor expansion of x in x
0.285 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.285 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.285 * [taylor]: Taking taylor expansion of x in x
0.285 * [taylor]: Taking taylor expansion of 1.0 in x
0.328 * * * * [progress]: [ 2 / 2 ] generating series at (2 2 1)
0.328 * [approximate]: Taking taylor expansion of (/ (+ x 1.0) (- 1.0 x)) in (x) around 0
0.328 * [taylor]: Taking taylor expansion of (/ (+ x 1.0) (- 1.0 x)) in x
0.328 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.328 * [taylor]: Taking taylor expansion of x in x
0.328 * [taylor]: Taking taylor expansion of 1.0 in x
0.328 * [taylor]: Taking taylor expansion of (- 1.0 x) in x
0.328 * [taylor]: Taking taylor expansion of 1.0 in x
0.328 * [taylor]: Taking taylor expansion of x in x
0.329 * [taylor]: Taking taylor expansion of (/ (+ x 1.0) (- 1.0 x)) in x
0.329 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.329 * [taylor]: Taking taylor expansion of x in x
0.329 * [taylor]: Taking taylor expansion of 1.0 in x
0.329 * [taylor]: Taking taylor expansion of (- 1.0 x) in x
0.329 * [taylor]: Taking taylor expansion of 1.0 in x
0.329 * [taylor]: Taking taylor expansion of x in x
0.336 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 x) 1.0) (- 1.0 (/ 1 x))) in (x) around 0
0.336 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 x) 1.0) (- 1.0 (/ 1 x))) in x
0.336 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.336 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.336 * [taylor]: Taking taylor expansion of x in x
0.336 * [taylor]: Taking taylor expansion of 1.0 in x
0.336 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.336 * [taylor]: Taking taylor expansion of 1.0 in x
0.336 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.336 * [taylor]: Taking taylor expansion of x in x
0.338 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 x) 1.0) (- 1.0 (/ 1 x))) in x
0.338 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.338 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.338 * [taylor]: Taking taylor expansion of x in x
0.338 * [taylor]: Taking taylor expansion of 1.0 in x
0.338 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.338 * [taylor]: Taking taylor expansion of 1.0 in x
0.338 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.338 * [taylor]: Taking taylor expansion of x in x
0.348 * [approximate]: Taking taylor expansion of (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0)) in (x) around 0
0.348 * [taylor]: Taking taylor expansion of (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0)) in x
0.348 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.348 * [taylor]: Taking taylor expansion of 1.0 in x
0.348 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.348 * [taylor]: Taking taylor expansion of x in x
0.348 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.349 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.349 * [taylor]: Taking taylor expansion of x in x
0.349 * [taylor]: Taking taylor expansion of 1.0 in x
0.350 * [taylor]: Taking taylor expansion of (/ (- 1.0 (/ 1 x)) (+ (/ 1 x) 1.0)) in x
0.350 * [taylor]: Taking taylor expansion of (- 1.0 (/ 1 x)) in x
0.350 * [taylor]: Taking taylor expansion of 1.0 in x
0.350 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.350 * [taylor]: Taking taylor expansion of x in x
0.350 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1.0) in x
0.350 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.350 * [taylor]: Taking taylor expansion of x in x
0.350 * [taylor]: Taking taylor expansion of 1.0 in x
0.359 * * * [progress]: simplifying candidates
0.361 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (log (/ (+ 1.0 x) (- 1.0 x))))
  (log1p (log (/ (+ 1.0 x) (- 1.0 x))))
  (log (* (cbrt (/ (+ 1.0 x) (- 1.0 x))) (cbrt (/ (+ 1.0 x) (- 1.0 x)))))
  (log (cbrt (/ (+ 1.0 x) (- 1.0 x))))
  (log (sqrt (/ (+ 1.0 x) (- 1.0 x))))
  (log (sqrt (/ (+ 1.0 x) (- 1.0 x))))
  (log (/ (* (cbrt (+ 1.0 x)) (cbrt (+ 1.0 x))) (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x)))))
  (log (/ (cbrt (+ 1.0 x)) (cbrt (- 1.0 x))))
  (log (/ (* (cbrt (+ 1.0 x)) (cbrt (+ 1.0 x))) (sqrt (- 1.0 x))))
  (log (/ (cbrt (+ 1.0 x)) (sqrt (- 1.0 x))))
  (log (/ (* (cbrt (+ 1.0 x)) (cbrt (+ 1.0 x))) 1))
  (log (/ (cbrt (+ 1.0 x)) (- 1.0 x)))
  (log (/ (* (cbrt (+ 1.0 x)) (cbrt (+ 1.0 x))) (+ (sqrt 1.0) (sqrt x))))
  (log (/ (cbrt (+ 1.0 x)) (- (sqrt 1.0) (sqrt x))))
  (log (/ (* (cbrt (+ 1.0 x)) (cbrt (+ 1.0 x))) 1))
  (log (/ (cbrt (+ 1.0 x)) (- 1.0 x)))
  (log (/ (sqrt (+ 1.0 x)) (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x)))))
  (log (/ (sqrt (+ 1.0 x)) (cbrt (- 1.0 x))))
  (log (/ (sqrt (+ 1.0 x)) (sqrt (- 1.0 x))))
  (log (/ (sqrt (+ 1.0 x)) (sqrt (- 1.0 x))))
  (log (/ (sqrt (+ 1.0 x)) 1))
  (log (/ (sqrt (+ 1.0 x)) (- 1.0 x)))
  (log (/ (sqrt (+ 1.0 x)) (+ (sqrt 1.0) (sqrt x))))
  (log (/ (sqrt (+ 1.0 x)) (- (sqrt 1.0) (sqrt x))))
  (log (/ (sqrt (+ 1.0 x)) 1))
  (log (/ (sqrt (+ 1.0 x)) (- 1.0 x)))
  (log (/ 1 (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x)))))
  (log (/ (+ 1.0 x) (cbrt (- 1.0 x))))
  (log (/ 1 (sqrt (- 1.0 x))))
  (log (/ (+ 1.0 x) (sqrt (- 1.0 x))))
  (log (/ 1 1))
  (log (/ (+ 1.0 x) (- 1.0 x)))
  (log (/ 1 (+ (sqrt 1.0) (sqrt x))))
  (log (/ (+ 1.0 x) (- (sqrt 1.0) (sqrt x))))
  (log (/ 1 1))
  (log (/ (+ 1.0 x) (- 1.0 x)))
  (log (/ 1 (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x)))))
  (log (/ (+ 1.0 x) (cbrt (- 1.0 x))))
  (log (/ 1 (sqrt (- 1.0 x))))
  (log (/ (+ 1.0 x) (sqrt (- 1.0 x))))
  (log (/ 1 1))
  (log (/ (+ 1.0 x) (- 1.0 x)))
  (log (/ 1 (+ (sqrt 1.0) (sqrt x))))
  (log (/ (+ 1.0 x) (- (sqrt 1.0) (sqrt x))))
  (log (/ 1 1))
  (log (/ (+ 1.0 x) (- 1.0 x)))
  (log 1)
  (log (/ (+ 1.0 x) (- 1.0 x)))
  (log (+ 1.0 x))
  (log (/ 1 (- 1.0 x)))
  (log (/ (+ 1.0 x) (- (pow 1.0 3) (pow x 3))))
  (log (+ (* 1.0 1.0) (+ (* x x) (* 1.0 x))))
  (log (/ (+ 1.0 x) (- (* 1.0 1.0) (* x x))))
  (log (+ 1.0 x))
  (log (+ 1.0 x))
  (log (- 1.0 x))
  (log (/ (+ 1.0 x) (- 1.0 x)))
  (log (log (/ (+ 1.0 x) (- 1.0 x))))
  (exp (log (/ (+ 1.0 x) (- 1.0 x))))
  (* (cbrt (log (/ (+ 1.0 x) (- 1.0 x)))) (cbrt (log (/ (+ 1.0 x) (- 1.0 x)))))
  (cbrt (log (/ (+ 1.0 x) (- 1.0 x))))
  (* (* (log (/ (+ 1.0 x) (- 1.0 x))) (log (/ (+ 1.0 x) (- 1.0 x)))) (log (/ (+ 1.0 x) (- 1.0 x))))
  (sqrt (log (/ (+ 1.0 x) (- 1.0 x))))
  (sqrt (log (/ (+ 1.0 x) (- 1.0 x))))
  (expm1 (/ (+ 1.0 x) (- 1.0 x)))
  (log1p (/ (+ 1.0 x) (- 1.0 x)))
  (- (log (+ 1.0 x)) (log (- 1.0 x)))
  (log (/ (+ 1.0 x) (- 1.0 x)))
  (exp (/ (+ 1.0 x) (- 1.0 x)))
  (/ (* (* (+ 1.0 x) (+ 1.0 x)) (+ 1.0 x)) (* (* (- 1.0 x) (- 1.0 x)) (- 1.0 x)))
  (* (cbrt (/ (+ 1.0 x) (- 1.0 x))) (cbrt (/ (+ 1.0 x) (- 1.0 x))))
  (cbrt (/ (+ 1.0 x) (- 1.0 x)))
  (* (* (/ (+ 1.0 x) (- 1.0 x)) (/ (+ 1.0 x) (- 1.0 x))) (/ (+ 1.0 x) (- 1.0 x)))
  (sqrt (/ (+ 1.0 x) (- 1.0 x)))
  (sqrt (/ (+ 1.0 x) (- 1.0 x)))
  (- (+ 1.0 x))
  (- (- 1.0 x))
  (/ (* (cbrt (+ 1.0 x)) (cbrt (+ 1.0 x))) (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (cbrt (+ 1.0 x)) (cbrt (- 1.0 x)))
  (/ (* (cbrt (+ 1.0 x)) (cbrt (+ 1.0 x))) (sqrt (- 1.0 x)))
  (/ (cbrt (+ 1.0 x)) (sqrt (- 1.0 x)))
  (/ (* (cbrt (+ 1.0 x)) (cbrt (+ 1.0 x))) 1)
  (/ (cbrt (+ 1.0 x)) (- 1.0 x))
  (/ (* (cbrt (+ 1.0 x)) (cbrt (+ 1.0 x))) (+ (sqrt 1.0) (sqrt x)))
  (/ (cbrt (+ 1.0 x)) (- (sqrt 1.0) (sqrt x)))
  (/ (* (cbrt (+ 1.0 x)) (cbrt (+ 1.0 x))) 1)
  (/ (cbrt (+ 1.0 x)) (- 1.0 x))
  (/ (sqrt (+ 1.0 x)) (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (sqrt (+ 1.0 x)) (cbrt (- 1.0 x)))
  (/ (sqrt (+ 1.0 x)) (sqrt (- 1.0 x)))
  (/ (sqrt (+ 1.0 x)) (sqrt (- 1.0 x)))
  (/ (sqrt (+ 1.0 x)) 1)
  (/ (sqrt (+ 1.0 x)) (- 1.0 x))
  (/ (sqrt (+ 1.0 x)) (+ (sqrt 1.0) (sqrt x)))
  (/ (sqrt (+ 1.0 x)) (- (sqrt 1.0) (sqrt x)))
  (/ (sqrt (+ 1.0 x)) 1)
  (/ (sqrt (+ 1.0 x)) (- 1.0 x))
  (/ 1 (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (+ 1.0 x) (cbrt (- 1.0 x)))
  (/ 1 (sqrt (- 1.0 x)))
  (/ (+ 1.0 x) (sqrt (- 1.0 x)))
  (/ 1 1)
  (/ (+ 1.0 x) (- 1.0 x))
  (/ 1 (+ (sqrt 1.0) (sqrt x)))
  (/ (+ 1.0 x) (- (sqrt 1.0) (sqrt x)))
  (/ 1 1)
  (/ (+ 1.0 x) (- 1.0 x))
  (/ 1 (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (+ 1.0 x) (cbrt (- 1.0 x)))
  (/ 1 (sqrt (- 1.0 x)))
  (/ (+ 1.0 x) (sqrt (- 1.0 x)))
  (/ 1 1)
  (/ (+ 1.0 x) (- 1.0 x))
  (/ 1 (+ (sqrt 1.0) (sqrt x)))
  (/ (+ 1.0 x) (- (sqrt 1.0) (sqrt x)))
  (/ 1 1)
  (/ (+ 1.0 x) (- 1.0 x))
  (/ 1 (- 1.0 x))
  (/ (- 1.0 x) (+ 1.0 x))
  (/ (+ 1.0 x) (* (cbrt (- 1.0 x)) (cbrt (- 1.0 x))))
  (/ (+ 1.0 x) (sqrt (- 1.0 x)))
  (/ (+ 1.0 x) 1)
  (/ (+ 1.0 x) (+ (sqrt 1.0) (sqrt x)))
  (/ (+ 1.0 x) 1)
  (/ (- 1.0 x) (cbrt (+ 1.0 x)))
  (/ (- 1.0 x) (sqrt (+ 1.0 x)))
  (/ (- 1.0 x) (+ 1.0 x))
  (/ (- 1.0 x) (+ 1.0 x))
  (/ (+ 1.0 x) (- (pow 1.0 3) (pow x 3)))
  (/ (+ 1.0 x) (- (* 1.0 1.0) (* x x)))
  (* (- 1.0 x) (+ (* 1.0 1.0) (- (* x x) (* 1.0 x))))
  (* (- 1.0 x) (- 1.0 x))
  (- (+ (* 2.0 (pow x 2)) (+ (* 2.0 x) (log 1.0))) (* 2.0 (/ (pow x 2) (pow 1.0 2))))
  (+ (log -1) (+ (* 2.0 (/ 1 x)) (* 0.6666666666666666 (/ 1 (pow x 3)))))
  (+ (log -1) (+ (* 2.0 (/ 1 x)) (* 0.6666666666666666 (/ 1 (pow x 3)))))
  (+ (* 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)))
0.365 * * [simplify]: iteration  0 :  146  enodes  (cost  1310 )
0.392 * * [simplify]: iteration  1 :  333  enodes  (cost  1243 )
0.449 * * [simplify]: iteration  2 :  938  enodes  (cost  1182 )