20.493 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.101 * * * [progress]: [2/2] Setting up program.
0.103 * [progress]: [Phase 2 of 3] Improving.
0.103 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
0.104 * * [simplify]: iteration  0 :  7  enodes  (cost  13 )
0.105 * * [simplify]: iteration  1 :  15  enodes  (cost  13 )
0.107 * * [simplify]: iteration  2 :  25  enodes  (cost  13 )
0.110 * * [simplify]: iteration  3 :  31  enodes  (cost  13 )
0.113 * * [simplify]: iteration  4 :  42  enodes  (cost  13 )
0.119 * * [simplify]: iteration  5 :  55  enodes  (cost  13 )
0.125 * * [simplify]: iteration  6 :  58  enodes  (cost  13 )
0.133 * * [simplify]: iteration  7 :  94  enodes  (cost  13 )
0.148 * * [simplify]: iteration  8 :  129  enodes  (cost  13 )
0.164 * * [simplify]: iteration  9 :  169  enodes  (cost  13 )
0.202 * * [simplify]: iteration  10 :  272  enodes  (cost  13 )
0.261 * * [simplify]: iteration  11 :  415  enodes  (cost  13 )
0.383 * * [simplify]: iteration  12 :  694  enodes  (cost  13 )
0.688 * * [simplify]: iteration  13 :  1578  enodes  (cost  13 )
2.111 * * [simplify]: iteration  done :  5001  enodes  (cost  13 )
2.112 * [simplify]: Simplified to:
   (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
2.112 * * [progress]: iteration 1 / 4
2.112 * * * [progress]: picking best candidate
2.114 * * * * [pick]: Picked  #<alt (λ (x) (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))>
2.114 * * * [progress]: localizing error
2.121 * * * [progress]: generating rewritten candidates
2.121 * * * * [progress]: [ 1 / 2 ] rewriting at (2 1)
2.129 * * * * [progress]: [ 2 / 2 ] rewriting at (2)
2.163 * * * [progress]: generating series expansions
2.163 * * * * [progress]: [ 1 / 2 ] generating series at (2 1)
2.163 * [approximate]: Taking taylor expansion of (- (exp x) (exp (- x))) in (x) around 0
2.163 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
2.163 * [taylor]: Taking taylor expansion of (exp x) in x
2.163 * [taylor]: Taking taylor expansion of x in x
2.163 * [taylor]: Taking taylor expansion of (exp (- x)) in x
2.164 * [taylor]: Taking taylor expansion of (- x) in x
2.164 * [taylor]: Taking taylor expansion of x in x
2.164 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
2.164 * [taylor]: Taking taylor expansion of (exp x) in x
2.164 * [taylor]: Taking taylor expansion of x in x
2.164 * [taylor]: Taking taylor expansion of (exp (- x)) in x
2.164 * [taylor]: Taking taylor expansion of (- x) in x
2.164 * [taylor]: Taking taylor expansion of x in x
2.190 * [approximate]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in (x) around 0
2.190 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
2.190 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.190 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.190 * [taylor]: Taking taylor expansion of x in x
2.190 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
2.190 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
2.190 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.190 * [taylor]: Taking taylor expansion of x in x
2.191 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
2.191 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.191 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.191 * [taylor]: Taking taylor expansion of x in x
2.191 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
2.191 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
2.191 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.191 * [taylor]: Taking taylor expansion of x in x
2.195 * [approximate]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in (x) around 0
2.195 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
2.195 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.195 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.195 * [taylor]: Taking taylor expansion of -1 in x
2.195 * [taylor]: Taking taylor expansion of x in x
2.195 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.195 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.195 * [taylor]: Taking taylor expansion of x in x
2.196 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
2.196 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.196 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.196 * [taylor]: Taking taylor expansion of -1 in x
2.196 * [taylor]: Taking taylor expansion of x in x
2.196 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.196 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.196 * [taylor]: Taking taylor expansion of x in x
2.199 * * * * [progress]: [ 2 / 2 ] generating series at (2)
2.200 * [approximate]: Taking taylor expansion of (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) in (x) around 0
2.200 * [taylor]: Taking taylor expansion of (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) in x
2.200 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
2.200 * [taylor]: Taking taylor expansion of (exp x) in x
2.200 * [taylor]: Taking taylor expansion of x in x
2.200 * [taylor]: Taking taylor expansion of (exp (- x)) in x
2.200 * [taylor]: Taking taylor expansion of (- x) in x
2.200 * [taylor]: Taking taylor expansion of x in x
2.200 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
2.200 * [taylor]: Taking taylor expansion of (exp x) in x
2.200 * [taylor]: Taking taylor expansion of x in x
2.200 * [taylor]: Taking taylor expansion of (exp (- x)) in x
2.200 * [taylor]: Taking taylor expansion of (- x) in x
2.200 * [taylor]: Taking taylor expansion of x in x
2.203 * [taylor]: Taking taylor expansion of (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) in x
2.203 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
2.203 * [taylor]: Taking taylor expansion of (exp x) in x
2.203 * [taylor]: Taking taylor expansion of x in x
2.204 * [taylor]: Taking taylor expansion of (exp (- x)) in x
2.204 * [taylor]: Taking taylor expansion of (- x) in x
2.204 * [taylor]: Taking taylor expansion of x in x
2.204 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
2.204 * [taylor]: Taking taylor expansion of (exp x) in x
2.204 * [taylor]: Taking taylor expansion of x in x
2.204 * [taylor]: Taking taylor expansion of (exp (- x)) in x
2.204 * [taylor]: Taking taylor expansion of (- x) in x
2.204 * [taylor]: Taking taylor expansion of x in x
2.249 * [approximate]: Taking taylor expansion of (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in (x) around 0
2.249 * [taylor]: Taking taylor expansion of (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in x
2.249 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
2.249 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.249 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.249 * [taylor]: Taking taylor expansion of x in x
2.249 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
2.249 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
2.249 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.249 * [taylor]: Taking taylor expansion of x in x
2.250 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
2.250 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.250 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.250 * [taylor]: Taking taylor expansion of x in x
2.250 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
2.250 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
2.250 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.250 * [taylor]: Taking taylor expansion of x in x
2.251 * [taylor]: Taking taylor expansion of (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in x
2.251 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
2.251 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.251 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.251 * [taylor]: Taking taylor expansion of x in x
2.251 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
2.251 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
2.251 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.251 * [taylor]: Taking taylor expansion of x in x
2.252 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
2.252 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.252 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.252 * [taylor]: Taking taylor expansion of x in x
2.252 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
2.252 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
2.252 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.252 * [taylor]: Taking taylor expansion of x in x
2.261 * [approximate]: Taking taylor expansion of (/ (- (exp (/ -1 x)) (exp (/ 1 x))) (+ (exp (/ 1 x)) (exp (/ -1 x)))) in (x) around 0
2.261 * [taylor]: Taking taylor expansion of (/ (- (exp (/ -1 x)) (exp (/ 1 x))) (+ (exp (/ 1 x)) (exp (/ -1 x)))) in x
2.262 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
2.262 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.262 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.262 * [taylor]: Taking taylor expansion of -1 in x
2.262 * [taylor]: Taking taylor expansion of x in x
2.262 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.262 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.262 * [taylor]: Taking taylor expansion of x in x
2.262 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
2.262 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.262 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.262 * [taylor]: Taking taylor expansion of x in x
2.263 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.263 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.263 * [taylor]: Taking taylor expansion of -1 in x
2.263 * [taylor]: Taking taylor expansion of x in x
2.263 * [taylor]: Taking taylor expansion of (/ (- (exp (/ -1 x)) (exp (/ 1 x))) (+ (exp (/ 1 x)) (exp (/ -1 x)))) in x
2.263 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
2.263 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.263 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.263 * [taylor]: Taking taylor expansion of -1 in x
2.263 * [taylor]: Taking taylor expansion of x in x
2.264 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.264 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.264 * [taylor]: Taking taylor expansion of x in x
2.264 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
2.264 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.264 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.264 * [taylor]: Taking taylor expansion of x in x
2.264 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.264 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.264 * [taylor]: Taking taylor expansion of -1 in x
2.264 * [taylor]: Taking taylor expansion of x in x
2.273 * * * [progress]: simplifying candidates
2.275 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (fma (* (cbrt (exp x)) (cbrt (exp x))) (cbrt (exp x)) (- (* (cbrt (exp (- x))) (* (cbrt (exp (- x))) (cbrt (exp (- x)))))))
  (fma (- (cbrt (exp (- x)))) (* (cbrt (exp (- x))) (cbrt (exp (- x)))) (* (cbrt (exp (- x))) (* (cbrt (exp (- x))) (cbrt (exp (- x))))))
  (fma (* (cbrt (exp x)) (cbrt (exp x))) (cbrt (exp x)) (- (* (sqrt (exp (- x))) (sqrt (exp (- x))))))
  (fma (- (sqrt (exp (- x)))) (sqrt (exp (- x))) (* (sqrt (exp (- x))) (sqrt (exp (- x)))))
  (fma (* (cbrt (exp x)) (cbrt (exp x))) (cbrt (exp x)) (- (* (exp (- x)) 1)))
  (fma (- (exp (- x))) 1 (* (exp (- x)) 1))
  (fma (sqrt (exp x)) (sqrt (exp x)) (- (* (cbrt (exp (- x))) (* (cbrt (exp (- x))) (cbrt (exp (- x)))))))
  (fma (- (cbrt (exp (- x)))) (* (cbrt (exp (- x))) (cbrt (exp (- x)))) (* (cbrt (exp (- x))) (* (cbrt (exp (- x))) (cbrt (exp (- x))))))
  (fma (sqrt (exp x)) (sqrt (exp x)) (- (* (sqrt (exp (- x))) (sqrt (exp (- x))))))
  (fma (- (sqrt (exp (- x)))) (sqrt (exp (- x))) (* (sqrt (exp (- x))) (sqrt (exp (- x)))))
  (fma (sqrt (exp x)) (sqrt (exp x)) (- (* (exp (- x)) 1)))
  (fma (- (exp (- x))) 1 (* (exp (- x)) 1))
  (fma 1 (exp x) (- (* (cbrt (exp (- x))) (* (cbrt (exp (- x))) (cbrt (exp (- x)))))))
  (fma (- (cbrt (exp (- x)))) (* (cbrt (exp (- x))) (cbrt (exp (- x)))) (* (cbrt (exp (- x))) (* (cbrt (exp (- x))) (cbrt (exp (- x))))))
  (fma 1 (exp x) (- (* (sqrt (exp (- x))) (sqrt (exp (- x))))))
  (fma (- (sqrt (exp (- x)))) (sqrt (exp (- x))) (* (sqrt (exp (- x))) (sqrt (exp (- x)))))
  (fma 1 (exp x) (- (* (exp (- x)) 1)))
  (fma (- (exp (- x))) 1 (* (exp (- x)) 1))
  (expm1 (- (exp x) (exp (- x))))
  (log1p (- (exp x) (exp (- x))))
  (- (exp (- x)))
  (- (exp (- x)))
  (- (exp (- x)))
  (/ (exp (exp x)) (exp (exp (- x))))
  (log (- (exp x) (exp (- x))))
  (exp (- (exp x) (exp (- x))))
  (* (cbrt (- (exp x) (exp (- x)))) (cbrt (- (exp x) (exp (- x)))))
  (cbrt (- (exp x) (exp (- x))))
  (* (* (- (exp x) (exp (- x))) (- (exp x) (exp (- x)))) (- (exp x) (exp (- x))))
  (sqrt (- (exp x) (exp (- x))))
  (sqrt (- (exp x) (exp (- x))))
  (- (pow (exp x) 3) (pow (exp (- x)) 3))
  (+ (* (exp x) (exp x)) (+ (* (exp (- x)) (exp (- x))) (* (exp x) (exp (- x)))))
  (- (exp (- x)))
  (- (* (exp x) (exp x)) (* (exp (- x)) (exp (- x))))
  (+ (exp x) (exp (- x)))
  (+ (sqrt (exp x)) (sqrt (exp (- x))))
  (- (sqrt (exp x)) (sqrt (exp (- x))))
  (- (exp x) (exp (- x)))
  (- (exp (- x)))
  (expm1 (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (log1p (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (- (log (- (exp x) (exp (- x)))) (log (+ (exp x) (exp (- x)))))
  (log (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (exp (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (/ (* (* (- (exp x) (exp (- x))) (- (exp x) (exp (- x)))) (- (exp x) (exp (- x)))) (* (* (+ (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) (+ (exp x) (exp (- x)))))
  (* (cbrt (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))) (cbrt (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))))
  (cbrt (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (* (* (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))) (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (sqrt (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (sqrt (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (- (- (exp x) (exp (- x))))
  (- (+ (exp x) (exp (- x))))
  (/ (exp x) (+ (exp x) (exp (- x))))
  (/ (exp (- x)) (+ (exp x) (exp (- x))))
  (/ (* (cbrt (- (exp x) (exp (- x)))) (cbrt (- (exp x) (exp (- x))))) (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (cbrt (- (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x)))))
  (/ (* (cbrt (- (exp x) (exp (- x)))) (cbrt (- (exp x) (exp (- x))))) (sqrt (+ (exp x) (exp (- x)))))
  (/ (cbrt (- (exp x) (exp (- x)))) (sqrt (+ (exp x) (exp (- x)))))
  (/ (* (cbrt (- (exp x) (exp (- x)))) (cbrt (- (exp x) (exp (- x))))) 1)
  (/ (cbrt (- (exp x) (exp (- x)))) (+ (exp x) (exp (- x))))
  (/ (* (cbrt (- (exp x) (exp (- x)))) (cbrt (- (exp x) (exp (- x))))) 1)
  (/ (cbrt (- (exp x) (exp (- x)))) (+ (exp x) (exp (- x))))
  (/ (sqrt (- (exp x) (exp (- x)))) (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (sqrt (- (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x)))))
  (/ (sqrt (- (exp x) (exp (- x)))) (sqrt (+ (exp x) (exp (- x)))))
  (/ (sqrt (- (exp x) (exp (- x)))) (sqrt (+ (exp x) (exp (- x)))))
  (/ (sqrt (- (exp x) (exp (- x)))) 1)
  (/ (sqrt (- (exp x) (exp (- x)))) (+ (exp x) (exp (- x))))
  (/ (sqrt (- (exp x) (exp (- x)))) 1)
  (/ (sqrt (- (exp x) (exp (- x)))) (+ (exp x) (exp (- x))))
  (/ 1 (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (- (exp x) (exp (- x))) (cbrt (+ (exp x) (exp (- x)))))
  (/ 1 (sqrt (+ (exp x) (exp (- x)))))
  (/ (- (exp x) (exp (- x))) (sqrt (+ (exp x) (exp (- x)))))
  (/ 1 1)
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  (/ 1 1)
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  (/ (+ (sqrt (exp x)) (sqrt (exp (- x)))) (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (- (sqrt (exp x)) (sqrt (exp (- x)))) (cbrt (+ (exp x) (exp (- x)))))
  (/ (+ (sqrt (exp x)) (sqrt (exp (- x)))) (sqrt (+ (exp x) (exp (- x)))))
  (/ (- (sqrt (exp x)) (sqrt (exp (- x)))) (sqrt (+ (exp x) (exp (- x)))))
  (/ (+ (sqrt (exp x)) (sqrt (exp (- x)))) 1)
  (/ (- (sqrt (exp x)) (sqrt (exp (- x)))) (+ (exp x) (exp (- x))))
  (/ (+ (sqrt (exp x)) (sqrt (exp (- x)))) 1)
  (/ (- (sqrt (exp x)) (sqrt (exp (- x)))) (+ (exp x) (exp (- x))))
  (/ 1 (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (- (exp x) (exp (- x))) (cbrt (+ (exp x) (exp (- x)))))
  (/ 1 (sqrt (+ (exp x) (exp (- x)))))
  (/ (- (exp x) (exp (- x))) (sqrt (+ (exp x) (exp (- x)))))
  (/ 1 1)
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  (/ 1 1)
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  (/ 1 (+ (exp x) (exp (- x))))
  (/ (+ (exp x) (exp (- x))) (- (exp x) (exp (- x))))
  (/ (- (exp x) (exp (- x))) (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (- (exp x) (exp (- x))) (sqrt (+ (exp x) (exp (- x)))))
  (/ (- (exp x) (exp (- x))) 1)
  (/ (- (exp x) (exp (- x))) 1)
  (/ (+ (exp x) (exp (- x))) (cbrt (- (exp x) (exp (- x)))))
  (/ (+ (exp x) (exp (- x))) (sqrt (- (exp x) (exp (- x)))))
  (/ (+ (exp x) (exp (- x))) (- (exp x) (exp (- x))))
  (/ (+ (exp x) (exp (- x))) (- (sqrt (exp x)) (sqrt (exp (- x)))))
  (/ (+ (exp x) (exp (- x))) (- (exp x) (exp (- x))))
  (/ (- (exp x) (exp (- x))) (+ (pow (exp x) 3) (pow (exp (- x)) 3)))
  (/ (- (exp x) (exp (- x))) (- (* (exp x) (exp x)) (* (exp (- x)) (exp (- x)))))
  (* (+ (exp x) (exp (- x))) (+ (* (exp x) (exp x)) (+ (* (exp (- x)) (exp (- x))) (* (exp x) (exp (- x))))))
  (* (+ (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  (+ (* 1/3 (pow x 3)) (+ (* 1/60 (pow x 5)) (* 2 x)))
  (- (exp x) (exp (- x)))
  (- (exp x) (exp (* -1 x)))
  (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  (/ (- (exp x) (exp (* -1 x))) (+ (exp (* -1 x)) (exp x)))
2.279 * * [simplify]: iteration  0 :  134  enodes  (cost  1618 )
2.310 * * [simplify]: iteration  1 :  304  enodes  (cost  1438 )
2.415 * * [simplify]: iteration  2 :  833  enodes  (cost  1284 )
3.239 * * [simplify]: iteration  3 :  3576  enodes  (cost  1251 )
4.296 * * [simplify]: iteration  done :  5000  enodes  (cost  1250 )
4.297 * [simplify]: Simplified to:
   (- (pow (cbrt (exp x)) 3) (exp (- x)))
  (/ 0 (exp x))
  (- (pow (cbrt (exp x)) 3) (exp (- x)))
  (/ 0 (exp x))
  (- (pow (cbrt (exp x)) 3) (exp (- x)))
  (/ 0 (exp x))
  (- (exp x) (exp (- x)))
  (/ 0 (exp x))
  (- (exp x) (exp (- x)))
  (/ 0 (exp x))
  (- (exp x) (exp (- x)))
  (/ 0 (exp x))
  (- (exp x) (exp (- x)))
  (/ 0 (exp x))
  (- (exp x) (exp (- x)))
  (/ 0 (exp x))
  (- (exp x) (exp (- x)))
  (/ 0 (exp x))
  (expm1 (- (exp x) (exp (- x))))
  (log1p (- (exp x) (exp (- x))))
  (- (exp (- x)))
  (- (exp (- x)))
  (- (exp (- x)))
  (exp (- (exp x) (exp (- x))))
  (log (- (exp x) (exp (- x))))
  (exp (- (exp x) (exp (- x))))
  (* (cbrt (- (exp x) (exp (- x)))) (cbrt (- (exp x) (exp (- x)))))
  (cbrt (- (exp x) (exp (- x))))
  (pow (- (exp x) (exp (- x))) 3)
  (sqrt (- (exp x) (exp (- x))))
  (sqrt (- (exp x) (exp (- x))))
  (- (pow (exp x) 3) (exp (* x -3)))
  (+ (+ 1 (exp (+ x x))) (exp (* x -2)))
  (- (exp (- x)))
  (- (exp (+ x x)) (exp (* x -2)))
  (+ (exp x) (exp (- x)))
  (+ (sqrt (exp (- x))) (sqrt (exp x)))
  (- (sqrt (exp x)) (sqrt (exp (- x))))
  (- (exp x) (exp (- x)))
  (- (exp (- x)))
  (expm1 (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (log1p (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (log (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (log (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (exp (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (pow (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) 3)
  (* (cbrt (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))) (cbrt (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))))
  (cbrt (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (pow (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) 3)
  (sqrt (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (sqrt (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))
  (- (exp (- x)) (exp x))
  (- (+ (exp x) (exp (- x))))
  (/ 1 (+ 1 (exp (* x -2))))
  (/ 1 (+ 1 (exp (+ x x))))
  (/ (* (cbrt (- (exp x) (exp (- x)))) (cbrt (- (exp x) (exp (- x))))) (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (cbrt (- (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x)))))
  (/ (* (cbrt (- (exp x) (exp (- x)))) (cbrt (- (exp x) (exp (- x))))) (sqrt (+ (exp x) (exp (- x)))))
  (/ (cbrt (- (exp x) (exp (- x)))) (sqrt (+ (exp x) (exp (- x)))))
  (* (cbrt (- (exp x) (exp (- x)))) (cbrt (- (exp x) (exp (- x)))))
  (/ (cbrt (- (exp x) (exp (- x)))) (+ (exp x) (exp (- x))))
  (* (cbrt (- (exp x) (exp (- x)))) (cbrt (- (exp x) (exp (- x)))))
  (/ (cbrt (- (exp x) (exp (- x)))) (+ (exp x) (exp (- x))))
  (/ (sqrt (- (exp x) (exp (- x)))) (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (sqrt (- (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x)))))
  (/ (sqrt (- (exp x) (exp (- x)))) (sqrt (+ (exp x) (exp (- x)))))
  (/ (sqrt (- (exp x) (exp (- x)))) (sqrt (+ (exp x) (exp (- x)))))
  (sqrt (- (exp x) (exp (- x))))
  (/ (sqrt (- (exp x) (exp (- x)))) (+ (exp x) (exp (- x))))
  (sqrt (- (exp x) (exp (- x))))
  (/ (sqrt (- (exp x) (exp (- x)))) (+ (exp x) (exp (- x))))
  (/ 1 (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (- (exp x) (exp (- x))) (cbrt (+ (exp x) (exp (- x)))))
  (/ 1 (sqrt (+ (exp x) (exp (- x)))))
  (/ (- (exp x) (exp (- x))) (sqrt (+ (exp x) (exp (- x)))))
  1
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  1
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  (/ (+ (sqrt (exp x)) (sqrt (exp (- x)))) (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (- (sqrt (exp x)) (sqrt (exp (- x)))) (cbrt (+ (exp x) (exp (- x)))))
  (/ (+ (sqrt (exp x)) (sqrt (exp (- x)))) (sqrt (+ (exp x) (exp (- x)))))
  (/ (- (sqrt (exp x)) (sqrt (exp (- x)))) (sqrt (+ (exp x) (exp (- x)))))
  (+ (sqrt (exp (- x))) (sqrt (exp x)))
  (/ (- (sqrt (exp x)) (sqrt (exp (- x)))) (+ (exp x) (exp (- x))))
  (+ (sqrt (exp (- x))) (sqrt (exp x)))
  (/ (- (sqrt (exp x)) (sqrt (exp (- x)))) (+ (exp x) (exp (- x))))
  (/ 1 (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (- (exp x) (exp (- x))) (cbrt (+ (exp x) (exp (- x)))))
  (/ 1 (sqrt (+ (exp x) (exp (- x)))))
  (/ (- (exp x) (exp (- x))) (sqrt (+ (exp x) (exp (- x)))))
  1
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  1
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  (/ 1 (+ (exp x) (exp (- x))))
  (/ (+ (exp x) (exp (- x))) (- (exp x) (exp (- x))))
  (/ (- (exp x) (exp (- x))) (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (- (exp x) (exp (- x))) (sqrt (+ (exp x) (exp (- x)))))
  (- (exp x) (exp (- x)))
  (- (exp x) (exp (- x)))
  (/ (+ (exp x) (exp (- x))) (cbrt (- (exp x) (exp (- x)))))
  (/ (+ (exp x) (exp (- x))) (sqrt (- (exp x) (exp (- x)))))
  (/ (+ (exp x) (exp (- x))) (- (exp x) (exp (- x))))
  (/ (+ (exp x) (exp (- x))) (- (sqrt (exp x)) (sqrt (exp (- x)))))
  (/ (+ (exp x) (exp (- x))) (- (exp x) (exp (- x))))
  (/ (- (exp x) (exp (- x))) (+ (pow (exp x) 3) (exp (* x -3))))
  (/ (- (exp x) (exp (- x))) (- (exp (+ x x)) (exp (* x -2))))
  (* (+ (+ 1 (exp (+ x x))) (exp (* x -2))) (+ (exp x) (exp (- x))))
  (+ (+ (exp (* x -2)) (exp (+ x x))) 2)
  (fma 1/3 (pow x 3) (fma 1/60 (pow x 5) (* 2 x)))
  (- (exp x) (exp (- x)))
  (- (exp x) (exp (- x)))
  (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x))
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
4.297 * * * [progress]: adding candidates to table
4.463 * * [progress]: iteration 2 / 4
4.463 * * * [progress]: picking best candidate
4.467 * * * * [pick]: Picked  #<alt (λ (x) (tanh x))>
4.467 * * * [progress]: localizing error
4.469 * * * [progress]: generating rewritten candidates
4.469 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
4.470 * * * [progress]: generating series expansions
4.470 * * * * [progress]: [ 1 / 1 ] generating series at (2)
4.470 * [approximate]: Taking taylor expansion of (tanh x) in (x) around 0
4.470 * [taylor]: Taking taylor expansion of (tanh x) in x
4.471 * [taylor]: Rewrote expression to (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
4.471 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
4.471 * [taylor]: Taking taylor expansion of (exp x) in x
4.471 * [taylor]: Taking taylor expansion of x in x
4.471 * [taylor]: Taking taylor expansion of (exp (- x)) in x
4.471 * [taylor]: Taking taylor expansion of (- x) in x
4.471 * [taylor]: Taking taylor expansion of x in x
4.471 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
4.471 * [taylor]: Taking taylor expansion of (exp x) in x
4.471 * [taylor]: Taking taylor expansion of x in x
4.471 * [taylor]: Taking taylor expansion of (exp (- x)) in x
4.471 * [taylor]: Taking taylor expansion of (- x) in x
4.472 * [taylor]: Taking taylor expansion of x in x
4.475 * [taylor]: Taking taylor expansion of (tanh x) in x
4.475 * [taylor]: Rewrote expression to (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
4.475 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
4.475 * [taylor]: Taking taylor expansion of (exp x) in x
4.475 * [taylor]: Taking taylor expansion of x in x
4.475 * [taylor]: Taking taylor expansion of (exp (- x)) in x
4.475 * [taylor]: Taking taylor expansion of (- x) in x
4.475 * [taylor]: Taking taylor expansion of x in x
4.476 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
4.476 * [taylor]: Taking taylor expansion of (exp x) in x
4.476 * [taylor]: Taking taylor expansion of x in x
4.476 * [taylor]: Taking taylor expansion of (exp (- x)) in x
4.476 * [taylor]: Taking taylor expansion of (- x) in x
4.476 * [taylor]: Taking taylor expansion of x in x
4.521 * [approximate]: Taking taylor expansion of (tanh (/ 1 x)) in (x) around 0
4.521 * [taylor]: Taking taylor expansion of (tanh (/ 1 x)) in x
4.522 * [taylor]: Rewrote expression to (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x)))))
4.522 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
4.522 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
4.522 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.522 * [taylor]: Taking taylor expansion of x in x
4.522 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
4.522 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
4.522 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.522 * [taylor]: Taking taylor expansion of x in x
4.523 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
4.523 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
4.523 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.523 * [taylor]: Taking taylor expansion of x in x
4.523 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
4.523 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
4.523 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.523 * [taylor]: Taking taylor expansion of x in x
4.524 * [taylor]: Taking taylor expansion of (tanh (/ 1 x)) in x
4.524 * [taylor]: Rewrote expression to (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x)))))
4.524 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
4.524 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
4.524 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.524 * [taylor]: Taking taylor expansion of x in x
4.524 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
4.524 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
4.524 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.524 * [taylor]: Taking taylor expansion of x in x
4.525 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
4.525 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
4.525 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.525 * [taylor]: Taking taylor expansion of x in x
4.525 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
4.525 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
4.525 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.525 * [taylor]: Taking taylor expansion of x in x
4.534 * [approximate]: Taking taylor expansion of (tanh (/ -1 x)) in (x) around 0
4.534 * [taylor]: Taking taylor expansion of (tanh (/ -1 x)) in x
4.534 * [taylor]: Rewrote expression to (/ (- (exp (/ -1 x)) (exp (- (/ -1 x)))) (+ (exp (/ -1 x)) (exp (- (/ -1 x)))))
4.534 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (- (/ -1 x)))) in x
4.534 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
4.534 * [taylor]: Taking taylor expansion of (/ -1 x) in x
4.535 * [taylor]: Taking taylor expansion of -1 in x
4.535 * [taylor]: Taking taylor expansion of x in x
4.535 * [taylor]: Taking taylor expansion of (exp (- (/ -1 x))) in x
4.535 * [taylor]: Taking taylor expansion of (- (/ -1 x)) in x
4.535 * [taylor]: Taking taylor expansion of (/ -1 x) in x
4.535 * [taylor]: Taking taylor expansion of -1 in x
4.535 * [taylor]: Taking taylor expansion of x in x
4.535 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) (exp (- (/ -1 x)))) in x
4.536 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
4.536 * [taylor]: Taking taylor expansion of (/ -1 x) in x
4.536 * [taylor]: Taking taylor expansion of -1 in x
4.536 * [taylor]: Taking taylor expansion of x in x
4.536 * [taylor]: Taking taylor expansion of (exp (- (/ -1 x))) in x
4.536 * [taylor]: Taking taylor expansion of (- (/ -1 x)) in x
4.536 * [taylor]: Taking taylor expansion of (/ -1 x) in x
4.536 * [taylor]: Taking taylor expansion of -1 in x
4.536 * [taylor]: Taking taylor expansion of x in x
4.537 * [taylor]: Taking taylor expansion of (tanh (/ -1 x)) in x
4.537 * [taylor]: Rewrote expression to (/ (- (exp (/ -1 x)) (exp (- (/ -1 x)))) (+ (exp (/ -1 x)) (exp (- (/ -1 x)))))
4.537 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (- (/ -1 x)))) in x
4.537 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
4.537 * [taylor]: Taking taylor expansion of (/ -1 x) in x
4.537 * [taylor]: Taking taylor expansion of -1 in x
4.537 * [taylor]: Taking taylor expansion of x in x
4.537 * [taylor]: Taking taylor expansion of (exp (- (/ -1 x))) in x
4.537 * [taylor]: Taking taylor expansion of (- (/ -1 x)) in x
4.537 * [taylor]: Taking taylor expansion of (/ -1 x) in x
4.537 * [taylor]: Taking taylor expansion of -1 in x
4.537 * [taylor]: Taking taylor expansion of x in x
4.538 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) (exp (- (/ -1 x)))) in x
4.538 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
4.538 * [taylor]: Taking taylor expansion of (/ -1 x) in x
4.538 * [taylor]: Taking taylor expansion of -1 in x
4.538 * [taylor]: Taking taylor expansion of x in x
4.538 * [taylor]: Taking taylor expansion of (exp (- (/ -1 x))) in x
4.538 * [taylor]: Taking taylor expansion of (- (/ -1 x)) in x
4.538 * [taylor]: Taking taylor expansion of (/ -1 x) in x
4.538 * [taylor]: Taking taylor expansion of -1 in x
4.538 * [taylor]: Taking taylor expansion of x in x
4.547 * * * [progress]: simplifying candidates
4.548 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (tanh x))
  (log1p (tanh x))
  (- (exp x) (exp (- x)))
  (+ (exp x) (exp (- x)))
  (- (exp (* 2 x)) 1)
  (+ (exp (* 2 x)) 1)
  (- 1 (exp (* -2 x)))
  (+ 1 (exp (* -2 x)))
  (log (tanh x))
  (exp (tanh x))
  (* (cbrt (tanh x)) (cbrt (tanh x)))
  (cbrt (tanh x))
  (* (* (tanh x) (tanh x)) (tanh x))
  (sqrt (tanh x))
  (sqrt (tanh x))
  (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  (/ (- (exp x) (exp (* -1 x))) (+ (exp (* -1 x)) (exp x)))
4.549 * * [simplify]: iteration  0 :  44  enodes  (cost  113 )
4.557 * * [simplify]: iteration  1 :  93  enodes  (cost  87 )
4.570 * * [simplify]: iteration  2 :  201  enodes  (cost  82 )
4.611 * * [simplify]: iteration  3 :  551  enodes  (cost  81 )
4.825 * * [simplify]: iteration  4 :  2443  enodes  (cost  81 )
5.790 * * [simplify]: iteration  done :  5000  enodes  (cost  81 )
5.790 * [simplify]: Simplified to:
   (expm1 (tanh x))
  (log1p (tanh x))
  (- (exp x) (exp (- x)))
  (+ (exp x) (exp (- x)))
  (expm1 (* 2 x))
  (+ (exp (* 2 x)) 1)
  (- 1 (exp (* -2 x)))
  (+ 1 (exp (* -2 x)))
  (log (tanh x))
  (exp (tanh x))
  (* (cbrt (tanh x)) (cbrt (tanh x)))
  (cbrt (tanh x))
  (pow (tanh x) 3)
  (sqrt (tanh x))
  (sqrt (tanh x))
  (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x))
  (tanh x)
  (tanh x)
5.790 * * * [progress]: adding candidates to table
5.817 * * [progress]: iteration 3 / 4
5.817 * * * [progress]: picking best candidate
5.819 * * * * [pick]: Picked  #<alt (λ (x) (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))>
5.819 * * * [progress]: localizing error
5.828 * * * [progress]: generating rewritten candidates
5.828 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
5.828 * * * * [progress]: [ 2 / 2 ] rewriting at (2 3)
5.829 * * * [progress]: generating series expansions
5.829 * * * * [progress]: [ 1 / 2 ] generating series at (2)
5.829 * [approximate]: Taking taylor expansion of (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)) in (x) around 0
5.829 * [taylor]: Taking taylor expansion of (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)) in x
5.829 * [taylor]: Rewrote expression to (+ (* (pow x 3) -1/3) (fma 2/15 (pow x 5) x))
5.829 * [taylor]: Taking taylor expansion of (* (pow x 3) -1/3) in x
5.829 * [taylor]: Taking taylor expansion of (pow x 3) in x
5.829 * [taylor]: Taking taylor expansion of x in x
5.829 * [taylor]: Taking taylor expansion of -1/3 in x
5.829 * [taylor]: Taking taylor expansion of (fma 2/15 (pow x 5) x) in x
5.829 * [taylor]: Rewrote expression to (+ (* 2/15 (pow x 5)) x)
5.829 * [taylor]: Taking taylor expansion of (* 2/15 (pow x 5)) in x
5.829 * [taylor]: Taking taylor expansion of 2/15 in x
5.829 * [taylor]: Taking taylor expansion of (pow x 5) in x
5.829 * [taylor]: Taking taylor expansion of x in x
5.829 * [taylor]: Taking taylor expansion of x in x
5.829 * [taylor]: Taking taylor expansion of (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)) in x
5.830 * [taylor]: Rewrote expression to (+ (* (pow x 3) -1/3) (fma 2/15 (pow x 5) x))
5.830 * [taylor]: Taking taylor expansion of (* (pow x 3) -1/3) in x
5.830 * [taylor]: Taking taylor expansion of (pow x 3) in x
5.830 * [taylor]: Taking taylor expansion of x in x
5.830 * [taylor]: Taking taylor expansion of -1/3 in x
5.830 * [taylor]: Taking taylor expansion of (fma 2/15 (pow x 5) x) in x
5.830 * [taylor]: Rewrote expression to (+ (* 2/15 (pow x 5)) x)
5.830 * [taylor]: Taking taylor expansion of (* 2/15 (pow x 5)) in x
5.830 * [taylor]: Taking taylor expansion of 2/15 in x
5.830 * [taylor]: Taking taylor expansion of (pow x 5) in x
5.830 * [taylor]: Taking taylor expansion of x in x
5.830 * [taylor]: Taking taylor expansion of x in x
5.837 * [approximate]: Taking taylor expansion of (fma (pow (/ 1 x) 3) -1/3 (fma 2/15 (pow (/ 1 x) 5) (/ 1 x))) in (x) around 0
5.837 * [taylor]: Taking taylor expansion of (fma (pow (/ 1 x) 3) -1/3 (fma 2/15 (pow (/ 1 x) 5) (/ 1 x))) in x
5.838 * [taylor]: Rewrote expression to (+ (* (pow (/ 1 x) 3) -1/3) (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)))
5.838 * [taylor]: Taking taylor expansion of (* (pow (/ 1 x) 3) -1/3) in x
5.838 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 3) in x
5.838 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.838 * [taylor]: Taking taylor expansion of x in x
5.838 * [taylor]: Taking taylor expansion of -1/3 in x
5.838 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)) in x
5.838 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ 1 x) 5)) (/ 1 x))
5.838 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ 1 x) 5)) in x
5.838 * [taylor]: Taking taylor expansion of 2/15 in x
5.838 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 5) in x
5.838 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.838 * [taylor]: Taking taylor expansion of x in x
5.838 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.838 * [taylor]: Taking taylor expansion of x in x
5.839 * [taylor]: Taking taylor expansion of (fma (pow (/ 1 x) 3) -1/3 (fma 2/15 (pow (/ 1 x) 5) (/ 1 x))) in x
5.839 * [taylor]: Rewrote expression to (+ (* (pow (/ 1 x) 3) -1/3) (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)))
5.839 * [taylor]: Taking taylor expansion of (* (pow (/ 1 x) 3) -1/3) in x
5.839 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 3) in x
5.839 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.839 * [taylor]: Taking taylor expansion of x in x
5.839 * [taylor]: Taking taylor expansion of -1/3 in x
5.839 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)) in x
5.839 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ 1 x) 5)) (/ 1 x))
5.839 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ 1 x) 5)) in x
5.839 * [taylor]: Taking taylor expansion of 2/15 in x
5.839 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 5) in x
5.839 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.839 * [taylor]: Taking taylor expansion of x in x
5.840 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.840 * [taylor]: Taking taylor expansion of x in x
5.857 * [approximate]: Taking taylor expansion of (fma (pow (/ -1 x) 3) -1/3 (fma 2/15 (pow (/ -1 x) 5) (/ -1 x))) in (x) around 0
5.857 * [taylor]: Taking taylor expansion of (fma (pow (/ -1 x) 3) -1/3 (fma 2/15 (pow (/ -1 x) 5) (/ -1 x))) in x
5.858 * [taylor]: Rewrote expression to (+ (* (pow (/ -1 x) 3) -1/3) (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)))
5.858 * [taylor]: Taking taylor expansion of (* (pow (/ -1 x) 3) -1/3) in x
5.858 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 3) in x
5.858 * [taylor]: Taking taylor expansion of (/ -1 x) in x
5.858 * [taylor]: Taking taylor expansion of -1 in x
5.858 * [taylor]: Taking taylor expansion of x in x
5.858 * [taylor]: Taking taylor expansion of -1/3 in x
5.858 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)) in x
5.858 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ -1 x) 5)) (/ -1 x))
5.858 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ -1 x) 5)) in x
5.858 * [taylor]: Taking taylor expansion of 2/15 in x
5.858 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 5) in x
5.858 * [taylor]: Taking taylor expansion of (/ -1 x) in x
5.858 * [taylor]: Taking taylor expansion of -1 in x
5.858 * [taylor]: Taking taylor expansion of x in x
5.859 * [taylor]: Taking taylor expansion of (/ -1 x) in x
5.859 * [taylor]: Taking taylor expansion of -1 in x
5.859 * [taylor]: Taking taylor expansion of x in x
5.859 * [taylor]: Taking taylor expansion of (fma (pow (/ -1 x) 3) -1/3 (fma 2/15 (pow (/ -1 x) 5) (/ -1 x))) in x
5.859 * [taylor]: Rewrote expression to (+ (* (pow (/ -1 x) 3) -1/3) (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)))
5.859 * [taylor]: Taking taylor expansion of (* (pow (/ -1 x) 3) -1/3) in x
5.859 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 3) in x
5.859 * [taylor]: Taking taylor expansion of (/ -1 x) in x
5.859 * [taylor]: Taking taylor expansion of -1 in x
5.859 * [taylor]: Taking taylor expansion of x in x
5.860 * [taylor]: Taking taylor expansion of -1/3 in x
5.860 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)) in x
5.860 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ -1 x) 5)) (/ -1 x))
5.860 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ -1 x) 5)) in x
5.860 * [taylor]: Taking taylor expansion of 2/15 in x
5.860 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 5) in x
5.860 * [taylor]: Taking taylor expansion of (/ -1 x) in x
5.860 * [taylor]: Taking taylor expansion of -1 in x
5.860 * [taylor]: Taking taylor expansion of x in x
5.860 * [taylor]: Taking taylor expansion of (/ -1 x) in x
5.860 * [taylor]: Taking taylor expansion of -1 in x
5.860 * [taylor]: Taking taylor expansion of x in x
5.878 * * * * [progress]: [ 2 / 2 ] generating series at (2 3)
5.878 * [approximate]: Taking taylor expansion of (fma 2/15 (pow x 5) x) in (x) around 0
5.878 * [taylor]: Taking taylor expansion of (fma 2/15 (pow x 5) x) in x
5.878 * [taylor]: Rewrote expression to (+ (* 2/15 (pow x 5)) x)
5.878 * [taylor]: Taking taylor expansion of (* 2/15 (pow x 5)) in x
5.878 * [taylor]: Taking taylor expansion of 2/15 in x
5.878 * [taylor]: Taking taylor expansion of (pow x 5) in x
5.878 * [taylor]: Taking taylor expansion of x in x
5.879 * [taylor]: Taking taylor expansion of x in x
5.879 * [taylor]: Taking taylor expansion of (fma 2/15 (pow x 5) x) in x
5.879 * [taylor]: Rewrote expression to (+ (* 2/15 (pow x 5)) x)
5.879 * [taylor]: Taking taylor expansion of (* 2/15 (pow x 5)) in x
5.879 * [taylor]: Taking taylor expansion of 2/15 in x
5.879 * [taylor]: Taking taylor expansion of (pow x 5) in x
5.879 * [taylor]: Taking taylor expansion of x in x
5.879 * [taylor]: Taking taylor expansion of x in x
5.901 * [approximate]: Taking taylor expansion of (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)) in (x) around 0
5.901 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)) in x
5.901 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ 1 x) 5)) (/ 1 x))
5.901 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ 1 x) 5)) in x
5.901 * [taylor]: Taking taylor expansion of 2/15 in x
5.901 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 5) in x
5.901 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.901 * [taylor]: Taking taylor expansion of x in x
5.902 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.902 * [taylor]: Taking taylor expansion of x in x
5.902 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)) in x
5.902 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ 1 x) 5)) (/ 1 x))
5.902 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ 1 x) 5)) in x
5.902 * [taylor]: Taking taylor expansion of 2/15 in x
5.902 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 5) in x
5.902 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.902 * [taylor]: Taking taylor expansion of x in x
5.902 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.902 * [taylor]: Taking taylor expansion of x in x
5.943 * [approximate]: Taking taylor expansion of (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)) in (x) around 0
5.943 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)) in x
5.943 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ -1 x) 5)) (/ -1 x))
5.943 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ -1 x) 5)) in x
5.943 * [taylor]: Taking taylor expansion of 2/15 in x
5.943 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 5) in x
5.943 * [taylor]: Taking taylor expansion of (/ -1 x) in x
5.943 * [taylor]: Taking taylor expansion of -1 in x
5.943 * [taylor]: Taking taylor expansion of x in x
5.944 * [taylor]: Taking taylor expansion of (/ -1 x) in x
5.944 * [taylor]: Taking taylor expansion of -1 in x
5.944 * [taylor]: Taking taylor expansion of x in x
5.944 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)) in x
5.944 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ -1 x) 5)) (/ -1 x))
5.944 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ -1 x) 5)) in x
5.944 * [taylor]: Taking taylor expansion of 2/15 in x
5.944 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 5) in x
5.944 * [taylor]: Taking taylor expansion of (/ -1 x) in x
5.944 * [taylor]: Taking taylor expansion of -1 in x
5.944 * [taylor]: Taking taylor expansion of x in x
5.944 * [taylor]: Taking taylor expansion of (/ -1 x) in x
5.944 * [taylor]: Taking taylor expansion of -1 in x
5.944 * [taylor]: Taking taylor expansion of x in x
5.992 * * * [progress]: simplifying candidates
5.993 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (log1p (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (* (pow x 3) -1/3)
  (log (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (exp (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (* (cbrt (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x))) (cbrt (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x))))
  (cbrt (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (* (* (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)) (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x))) (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (sqrt (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (sqrt (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (expm1 (fma 2/15 (pow x 5) x))
  (log1p (fma 2/15 (pow x 5) x))
  (* 2/15 (pow x 5))
  (log (fma 2/15 (pow x 5) x))
  (exp (fma 2/15 (pow x 5) x))
  (* (cbrt (fma 2/15 (pow x 5) x)) (cbrt (fma 2/15 (pow x 5) x)))
  (cbrt (fma 2/15 (pow x 5) x))
  (* (* (fma 2/15 (pow x 5) x) (fma 2/15 (pow x 5) x)) (fma 2/15 (pow x 5) x))
  (sqrt (fma 2/15 (pow x 5) x))
  (sqrt (fma 2/15 (pow x 5) x))
  (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))
  (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))
  (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))
  (+ x (* 2/15 (pow x 5)))
  (+ x (* 2/15 (pow x 5)))
  (+ x (* 2/15 (pow x 5)))
5.994 * * [simplify]: iteration  0 :  33  enodes  (cost  298 )
5.999 * * [simplify]: iteration  1 :  56  enodes  (cost  292 )
6.011 * * [simplify]: iteration  2 :  154  enodes  (cost  255 )
6.052 * * [simplify]: iteration  3 :  578  enodes  (cost  255 )
6.453 * * [simplify]: iteration  4 :  3594  enodes  (cost  255 )
7.920 * * [simplify]: iteration  done :  5001  enodes  (cost  255 )
7.920 * [simplify]: Simplified to:
   (expm1 (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (log1p (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (* (pow x 3) -1/3)
  (log (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (exp (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (* (cbrt (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x))) (cbrt (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x))))
  (cbrt (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (pow (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)) 3)
  (sqrt (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (sqrt (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))
  (expm1 (fma 2/15 (pow x 5) x))
  (log1p (fma 2/15 (pow x 5) x))
  (* 2/15 (pow x 5))
  (log (fma 2/15 (pow x 5) x))
  (exp (fma 2/15 (pow x 5) x))
  (* (cbrt (fma 2/15 (pow x 5) x)) (cbrt (fma 2/15 (pow x 5) x)))
  (cbrt (fma 2/15 (pow x 5) x))
  (pow (fma 2/15 (pow x 5) x) 3)
  (sqrt (fma 2/15 (pow x 5) x))
  (sqrt (fma 2/15 (pow x 5) x))
  (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x))
  (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x))
  (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x))
  (fma 2/15 (pow x 5) x)
  (fma 2/15 (pow x 5) x)
  (fma 2/15 (pow x 5) x)
7.920 * * * [progress]: adding candidates to table
7.987 * [progress]: [Phase 3 of 3] Extracting.
7.987 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))> #<alt (λ (x) (tanh x))> #<alt (λ (x) (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))>)
7.987 * * * [regime-changes]: Trying 2 branch expressions: ((/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) x)
7.987 * * * * [regimes]: Trying to branch on (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) from (#<alt (λ (x) (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))> #<alt (λ (x) (tanh x))> #<alt (λ (x) (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))>)
8.003 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))> #<alt (λ (x) (tanh x))> #<alt (λ (x) (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))>)
8.016 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
8.016 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (tanh x)
8.016 * * [simplify]: iteration  0 :  2  enodes  (cost  2 )
8.016 * * [simplify]: iteration  done :  2  enodes  (cost  2 )
8.017 * [simplify]: Simplified to:
   (tanh x)
11.260 * [regime-testing]: Baseline error score: 0.014126765845730716
11.260 * [regime-testing]: Oracle error score: 0.0025003125390673834
11.261 * [regime-testing]: End program error score: 0.014126765845730716