0.149 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.073 * * * [progress]: [2/2] Setting up program.
0.075 * [progress]: [Phase 2 of 3] Improving.
0.075 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (+ (- (exp x) 2.0) (exp (- x)))
0.076 * * [simplify]: iteration  0 :  7  enodes  (cost  8 )
0.077 * * [simplify]: iteration  1 :  14  enodes  (cost  8 )
0.079 * * [simplify]: iteration  2 :  26  enodes  (cost  8 )
0.082 * * [simplify]: iteration  3 :  38  enodes  (cost  8 )
0.091 * * [simplify]: iteration  4 :  49  enodes  (cost  8 )
0.096 * * [simplify]: iteration  5 :  60  enodes  (cost  8 )
0.102 * * [simplify]: iteration  6 :  69  enodes  (cost  8 )
0.109 * * [simplify]: iteration  7 :  86  enodes  (cost  8 )
0.118 * * [simplify]: iteration  8 :  106  enodes  (cost  8 )
0.131 * * [simplify]: iteration  9 :  129  enodes  (cost  8 )
0.151 * * [simplify]: iteration  10 :  153  enodes  (cost  8 )
0.173 * * [simplify]: iteration  11 :  157  enodes  (cost  8 )
0.196 * * [simplify]: iteration  done :  157  enodes  (cost  8 )
0.196 * [simplify]: Simplified to:
   (+ (- (exp x) 2.0) (exp (- x)))
0.196 * * [progress]: iteration 1 / 4
0.196 * * * [progress]: picking best candidate
0.198 * * * * [pick]: Picked  #<alt (λ (x) (+ (- (exp x) 2.0) (exp (- x))))>
0.198 * * * [progress]: localizing error
0.204 * * * [progress]: generating rewritten candidates
0.204 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.230 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
0.237 * * * [progress]: generating series expansions
0.237 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.237 * [approximate]: Taking taylor expansion of (- (+ (exp x) (exp (- x))) 2.0) in (x) around 0
0.237 * [taylor]: Taking taylor expansion of (- (+ (exp x) (exp (- x))) 2.0) in x
0.237 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
0.237 * [taylor]: Taking taylor expansion of (exp x) in x
0.237 * [taylor]: Taking taylor expansion of x in x
0.237 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.237 * [taylor]: Taking taylor expansion of (- x) in x
0.237 * [taylor]: Taking taylor expansion of x in x
0.238 * [taylor]: Taking taylor expansion of 2.0 in x
0.238 * [taylor]: Taking taylor expansion of (- (+ (exp x) (exp (- x))) 2.0) in x
0.238 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
0.238 * [taylor]: Taking taylor expansion of (exp x) in x
0.238 * [taylor]: Taking taylor expansion of x in x
0.238 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.238 * [taylor]: Taking taylor expansion of (- x) in x
0.238 * [taylor]: Taking taylor expansion of x in x
0.239 * [taylor]: Taking taylor expansion of 2.0 in x
0.283 * [approximate]: Taking taylor expansion of (- (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) 2.0) in (x) around 0
0.283 * [taylor]: Taking taylor expansion of (- (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) 2.0) in x
0.283 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.283 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) 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 (exp (- (/ 1 x))) in x
0.283 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.283 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.283 * [taylor]: Taking taylor expansion of x in x
0.284 * [taylor]: Taking taylor expansion of 2.0 in x
0.284 * [taylor]: Taking taylor expansion of (- (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) 2.0) in x
0.284 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.284 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.284 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.284 * [taylor]: Taking taylor expansion of x in x
0.284 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.284 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.284 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.284 * [taylor]: Taking taylor expansion of x in x
0.285 * [taylor]: Taking taylor expansion of 2.0 in x
0.290 * [approximate]: Taking taylor expansion of (- (+ (exp (/ 1 x)) (exp (/ -1 x))) 2.0) in (x) around 0
0.290 * [taylor]: Taking taylor expansion of (- (+ (exp (/ 1 x)) (exp (/ -1 x))) 2.0) in x
0.290 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.290 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.290 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.290 * [taylor]: Taking taylor expansion of x in x
0.290 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.290 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.290 * [taylor]: Taking taylor expansion of -1 in x
0.290 * [taylor]: Taking taylor expansion of x in x
0.290 * [taylor]: Taking taylor expansion of 2.0 in x
0.290 * [taylor]: Taking taylor expansion of (- (+ (exp (/ 1 x)) (exp (/ -1 x))) 2.0) in x
0.290 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.290 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.290 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.291 * [taylor]: Taking taylor expansion of x in x
0.291 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.291 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.291 * [taylor]: Taking taylor expansion of -1 in x
0.291 * [taylor]: Taking taylor expansion of x in x
0.291 * [taylor]: Taking taylor expansion of 2.0 in x
0.296 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
0.296 * [approximate]: Taking taylor expansion of (- (exp x) 2.0) in (x) around 0
0.296 * [taylor]: Taking taylor expansion of (- (exp x) 2.0) in x
0.296 * [taylor]: Taking taylor expansion of (exp x) in x
0.296 * [taylor]: Taking taylor expansion of x in x
0.296 * [taylor]: Taking taylor expansion of 2.0 in x
0.296 * [taylor]: Taking taylor expansion of (- (exp x) 2.0) in x
0.296 * [taylor]: Taking taylor expansion of (exp x) in x
0.296 * [taylor]: Taking taylor expansion of x in x
0.296 * [taylor]: Taking taylor expansion of 2.0 in x
0.300 * [approximate]: Taking taylor expansion of (- (exp (/ 1 x)) 2.0) in (x) around 0
0.300 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) 2.0) in x
0.300 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.300 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.300 * [taylor]: Taking taylor expansion of x in x
0.301 * [taylor]: Taking taylor expansion of 2.0 in x
0.301 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) 2.0) in x
0.301 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.301 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.301 * [taylor]: Taking taylor expansion of x in x
0.301 * [taylor]: Taking taylor expansion of 2.0 in x
0.304 * [approximate]: Taking taylor expansion of (- (exp (/ -1 x)) 2.0) in (x) around 0
0.304 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) 2.0) in x
0.304 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.304 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.304 * [taylor]: Taking taylor expansion of -1 in x
0.304 * [taylor]: Taking taylor expansion of x in x
0.305 * [taylor]: Taking taylor expansion of 2.0 in x
0.305 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) 2.0) in x
0.305 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.305 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.305 * [taylor]: Taking taylor expansion of -1 in x
0.305 * [taylor]: Taking taylor expansion of x in x
0.305 * [taylor]: Taking taylor expansion of 2.0 in x
0.309 * * * [progress]: simplifying candidates
0.310 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (+ (- (exp x) 2.0) (exp (- x))))
  (log1p (+ (- (exp x) 2.0) (exp (- x))))
  (* (/ (exp (exp x)) (exp 2.0)) (exp (exp (- x))))
  (* (exp (- (exp x) 2.0)) (exp (exp (- x))))
  (log (+ (- (exp x) 2.0) (exp (- x))))
  (exp (+ (- (exp x) 2.0) (exp (- x))))
  (* (cbrt (+ (- (exp x) 2.0) (exp (- x)))) (cbrt (+ (- (exp x) 2.0) (exp (- x)))))
  (cbrt (+ (- (exp x) 2.0) (exp (- x))))
  (* (* (+ (- (exp x) 2.0) (exp (- x))) (+ (- (exp x) 2.0) (exp (- x)))) (+ (- (exp x) 2.0) (exp (- x))))
  (sqrt (+ (- (exp x) 2.0) (exp (- x))))
  (sqrt (+ (- (exp x) 2.0) (exp (- x))))
  (+ (* (- (pow (exp x) 3) (pow 2.0 3)) (exp x)) (* (+ (* (exp x) (exp x)) (+ (* 2.0 2.0) (* (exp x) 2.0))) 1))
  (* (+ (* (exp x) (exp x)) (+ (* 2.0 2.0) (* (exp x) 2.0))) (exp x))
  (+ (* (- (pow (exp x) 3) (pow 2.0 3)) (exp x)) (* (+ (* (exp x) (exp x)) (+ (* 2.0 2.0) (* (exp x) 2.0))) (exp 0)))
  (* (+ (* (exp x) (exp x)) (+ (* 2.0 2.0) (* (exp x) 2.0))) (exp x))
  (+ (* (- (* (exp x) (exp x)) (* 2.0 2.0)) (exp x)) (* (+ (exp x) 2.0) 1))
  (* (+ (exp x) 2.0) (exp x))
  (+ (* (- (* (exp x) (exp x)) (* 2.0 2.0)) (exp x)) (* (+ (exp x) 2.0) (exp 0)))
  (* (+ (exp x) 2.0) (exp x))
  (+ (pow (- (exp x) 2.0) 3) (pow (exp (- x)) 3))
  (+ (* (- (exp x) 2.0) (- (exp x) 2.0)) (- (* (exp (- x)) (exp (- x))) (* (- (exp x) 2.0) (exp (- x)))))
  (- (* (- (exp x) 2.0) (- (exp x) 2.0)) (* (exp (- x)) (exp (- x))))
  (- (- (exp x) 2.0) (exp (- x)))
  (+ (- (exp x) 2.0) (exp (- x)))
  (+ (- (exp x) 2.0) (exp (- x)))
  (+ (fma (- (cbrt 2.0)) (* (cbrt 2.0) (cbrt 2.0)) (* (cbrt 2.0) (* (cbrt 2.0) (cbrt 2.0)))) (exp (- x)))
  (+ (fma (- (sqrt 2.0)) (sqrt 2.0) (* (sqrt 2.0) (sqrt 2.0))) (exp (- x)))
  (+ (fma (- 2.0) 1 (* 2.0 1)) (exp (- x)))
  (+ (fma (- (cbrt 2.0)) (* (cbrt 2.0) (cbrt 2.0)) (* (cbrt 2.0) (* (cbrt 2.0) (cbrt 2.0)))) (exp (- x)))
  (+ (fma (- (sqrt 2.0)) (sqrt 2.0) (* (sqrt 2.0) (sqrt 2.0))) (exp (- x)))
  (+ (fma (- 2.0) 1 (* 2.0 1)) (exp (- x)))
  (+ (fma (- (cbrt 2.0)) (* (cbrt 2.0) (cbrt 2.0)) (* (cbrt 2.0) (* (cbrt 2.0) (cbrt 2.0)))) (exp (- x)))
  (+ (fma (- (sqrt 2.0)) (sqrt 2.0) (* (sqrt 2.0) (sqrt 2.0))) (exp (- x)))
  (+ (fma (- 2.0) 1 (* 2.0 1)) (exp (- x)))
  (+ (- 2.0) (exp (- x)))
  (+ (- 2.0) (exp (- x)))
  (- 2.0 (exp (- x)))
  (fma (* (cbrt (exp x)) (cbrt (exp x))) (cbrt (exp x)) (- (* (cbrt 2.0) (* (cbrt 2.0) (cbrt 2.0)))))
  (fma (- (cbrt 2.0)) (* (cbrt 2.0) (cbrt 2.0)) (* (cbrt 2.0) (* (cbrt 2.0) (cbrt 2.0))))
  (fma (* (cbrt (exp x)) (cbrt (exp x))) (cbrt (exp x)) (- (* (sqrt 2.0) (sqrt 2.0))))
  (fma (- (sqrt 2.0)) (sqrt 2.0) (* (sqrt 2.0) (sqrt 2.0)))
  (fma (* (cbrt (exp x)) (cbrt (exp x))) (cbrt (exp x)) (- (* 2.0 1)))
  (fma (- 2.0) 1 (* 2.0 1))
  (fma (sqrt (exp x)) (sqrt (exp x)) (- (* (cbrt 2.0) (* (cbrt 2.0) (cbrt 2.0)))))
  (fma (- (cbrt 2.0)) (* (cbrt 2.0) (cbrt 2.0)) (* (cbrt 2.0) (* (cbrt 2.0) (cbrt 2.0))))
  (fma (sqrt (exp x)) (sqrt (exp x)) (- (* (sqrt 2.0) (sqrt 2.0))))
  (fma (- (sqrt 2.0)) (sqrt 2.0) (* (sqrt 2.0) (sqrt 2.0)))
  (fma (sqrt (exp x)) (sqrt (exp x)) (- (* 2.0 1)))
  (fma (- 2.0) 1 (* 2.0 1))
  (fma 1 (exp x) (- (* (cbrt 2.0) (* (cbrt 2.0) (cbrt 2.0)))))
  (fma (- (cbrt 2.0)) (* (cbrt 2.0) (cbrt 2.0)) (* (cbrt 2.0) (* (cbrt 2.0) (cbrt 2.0))))
  (fma 1 (exp x) (- (* (sqrt 2.0) (sqrt 2.0))))
  (fma (- (sqrt 2.0)) (sqrt 2.0) (* (sqrt 2.0) (sqrt 2.0)))
  (fma 1 (exp x) (- (* 2.0 1)))
  (fma (- 2.0) 1 (* 2.0 1))
  (expm1 (- (exp x) 2.0))
  (log1p (- (exp x) 2.0))
  (- 2.0)
  (- 2.0)
  (- 2.0)
  (/ (exp (exp x)) (exp 2.0))
  (log (- (exp x) 2.0))
  (exp (- (exp x) 2.0))
  (* (cbrt (- (exp x) 2.0)) (cbrt (- (exp x) 2.0)))
  (cbrt (- (exp x) 2.0))
  (* (* (- (exp x) 2.0) (- (exp x) 2.0)) (- (exp x) 2.0))
  (sqrt (- (exp x) 2.0))
  (sqrt (- (exp x) 2.0))
  (- (pow (exp x) 3) (pow 2.0 3))
  (+ (* (exp x) (exp x)) (+ (* 2.0 2.0) (* (exp x) 2.0)))
  (- 2.0)
  (- (* (exp x) (exp x)) (* 2.0 2.0))
  (+ (exp x) 2.0)
  (+ (sqrt (exp x)) (sqrt 2.0))
  (- (sqrt (exp x)) (sqrt 2.0))
  (- (exp x) 2.0)
  (- 2.0)
  (+ (pow x 2) (+ (* 1/360 (pow x 6)) (* 1/12 (pow x 4))))
  (- (+ (exp x) (exp (- x))) 2.0)
  (- (+ (exp (* -1 x)) (exp x)) 2.0)
  (- (+ (* 1/2 (pow x 2)) x) 1.0)
  (- (exp x) 2.0)
  (- (exp x) 2.0)
0.313 * * [simplify]: iteration  0 :  124  enodes  (cost  914 )
0.338 * * [simplify]: iteration  1 :  288  enodes  (cost  729 )