13.838 * [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.
0.104 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
0.105 * * [simplify]: iteration  0 :  7  enodes  (cost  13 )
0.105 * * [simplify]: iteration  1 :  15  enodes  (cost  13 )
0.108 * * [simplify]: iteration  2 :  25  enodes  (cost  13 )
0.111 * * [simplify]: iteration  3 :  33  enodes  (cost  13 )
0.114 * * [simplify]: iteration  4 :  45  enodes  (cost  13 )
0.120 * * [simplify]: iteration  5 :  65  enodes  (cost  13 )
0.134 * * [simplify]: iteration  6 :  170  enodes  (cost  13 )
0.213 * * [simplify]: iteration  7 :  818  enodes  (cost  13 )
1.471 * * [simplify]: iteration  8 :  4561  enodes  (cost  13 )
12.152 * * [simplify]: iteration  done :  5000  enodes  (cost  13 )
12.152 * [simplify]: Simplified to:
   (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
12.152 * * [progress]: iteration 1 / 4
12.152 * * * [progress]: picking best candidate
12.154 * * * * [pick]: Picked  #<alt (λ (x) (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))>
12.154 * * * [progress]: localizing error
12.161 * * * [progress]: generating rewritten candidates
12.161 * * * * [progress]: [ 1 / 3 ] rewriting at (2 1)
12.169 * * * * [progress]: [ 2 / 3 ] rewriting at (2)
12.198 * * * * [progress]: [ 3 / 3 ] rewriting at (2 2)
12.211 * * * [progress]: generating series expansions
12.211 * * * * [progress]: [ 1 / 3 ] generating series at (2 1)
12.211 * [approximate]: Taking taylor expansion of (- (exp x) (exp (- x))) in (x) around 0
12.211 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
12.211 * [taylor]: Taking taylor expansion of (exp x) in x
12.211 * [taylor]: Taking taylor expansion of x in x
12.211 * [taylor]: Taking taylor expansion of (exp (- x)) in x
12.211 * [taylor]: Taking taylor expansion of (- x) in x
12.211 * [taylor]: Taking taylor expansion of x in x
12.212 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
12.212 * [taylor]: Taking taylor expansion of (exp x) in x
12.212 * [taylor]: Taking taylor expansion of x in x
12.212 * [taylor]: Taking taylor expansion of (exp (- x)) in x
12.212 * [taylor]: Taking taylor expansion of (- x) in x
12.212 * [taylor]: Taking taylor expansion of x in x
12.236 * [approximate]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in (x) around 0
12.236 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
12.236 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.236 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.236 * [taylor]: Taking taylor expansion of x in x
12.237 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
12.237 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
12.237 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.237 * [taylor]: Taking taylor expansion of x in x
12.237 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
12.237 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.237 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.237 * [taylor]: Taking taylor expansion of x in x
12.238 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
12.238 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
12.238 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.238 * [taylor]: Taking taylor expansion of x in x
12.241 * [approximate]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in (x) around 0
12.241 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
12.241 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
12.241 * [taylor]: Taking taylor expansion of (/ -1 x) in x
12.241 * [taylor]: Taking taylor expansion of -1 in x
12.241 * [taylor]: Taking taylor expansion of x in x
12.242 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.242 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.242 * [taylor]: Taking taylor expansion of x in x
12.242 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
12.242 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
12.242 * [taylor]: Taking taylor expansion of (/ -1 x) in x
12.242 * [taylor]: Taking taylor expansion of -1 in x
12.242 * [taylor]: Taking taylor expansion of x in x
12.243 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.243 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.243 * [taylor]: Taking taylor expansion of x in x
12.246 * * * * [progress]: [ 2 / 3 ] generating series at (2)
12.246 * [approximate]: Taking taylor expansion of (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) in (x) around 0
12.246 * [taylor]: Taking taylor expansion of (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) in x
12.246 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
12.246 * [taylor]: Taking taylor expansion of (exp x) in x
12.246 * [taylor]: Taking taylor expansion of x in x
12.247 * [taylor]: Taking taylor expansion of (exp (- x)) in x
12.247 * [taylor]: Taking taylor expansion of (- x) in x
12.247 * [taylor]: Taking taylor expansion of x in x
12.247 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
12.247 * [taylor]: Taking taylor expansion of (exp x) in x
12.247 * [taylor]: Taking taylor expansion of x in x
12.247 * [taylor]: Taking taylor expansion of (exp (- x)) in x
12.247 * [taylor]: Taking taylor expansion of (- x) in x
12.247 * [taylor]: Taking taylor expansion of x in x
12.251 * [taylor]: Taking taylor expansion of (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) in x
12.251 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
12.251 * [taylor]: Taking taylor expansion of (exp x) in x
12.251 * [taylor]: Taking taylor expansion of x in x
12.251 * [taylor]: Taking taylor expansion of (exp (- x)) in x
12.251 * [taylor]: Taking taylor expansion of (- x) in x
12.251 * [taylor]: Taking taylor expansion of x in x
12.251 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
12.251 * [taylor]: Taking taylor expansion of (exp x) in x
12.251 * [taylor]: Taking taylor expansion of x in x
12.251 * [taylor]: Taking taylor expansion of (exp (- x)) in x
12.251 * [taylor]: Taking taylor expansion of (- x) in x
12.251 * [taylor]: Taking taylor expansion of x in x
12.297 * [approximate]: Taking taylor expansion of (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in (x) around 0
12.297 * [taylor]: Taking taylor expansion of (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in x
12.297 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
12.297 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.297 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.297 * [taylor]: Taking taylor expansion of x in x
12.297 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
12.297 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
12.297 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.297 * [taylor]: Taking taylor expansion of x in x
12.298 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
12.298 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.298 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.298 * [taylor]: Taking taylor expansion of x in x
12.298 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
12.298 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
12.298 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.298 * [taylor]: Taking taylor expansion of x in x
12.299 * [taylor]: Taking taylor expansion of (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in x
12.299 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
12.299 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.299 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.299 * [taylor]: Taking taylor expansion of x in x
12.299 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
12.299 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
12.299 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.299 * [taylor]: Taking taylor expansion of x in x
12.300 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
12.300 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.300 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.300 * [taylor]: Taking taylor expansion of x in x
12.300 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
12.300 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
12.300 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.300 * [taylor]: Taking taylor expansion of x in x
12.309 * [approximate]: Taking taylor expansion of (/ (- (exp (/ -1 x)) (exp (/ 1 x))) (+ (exp (/ 1 x)) (exp (/ -1 x)))) in (x) around 0
12.309 * [taylor]: Taking taylor expansion of (/ (- (exp (/ -1 x)) (exp (/ 1 x))) (+ (exp (/ 1 x)) (exp (/ -1 x)))) in x
12.309 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
12.309 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
12.309 * [taylor]: Taking taylor expansion of (/ -1 x) in x
12.309 * [taylor]: Taking taylor expansion of -1 in x
12.310 * [taylor]: Taking taylor expansion of x in x
12.310 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.310 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.310 * [taylor]: Taking taylor expansion of x in x
12.310 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
12.310 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.310 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.310 * [taylor]: Taking taylor expansion of x in x
12.310 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
12.311 * [taylor]: Taking taylor expansion of (/ -1 x) in x
12.311 * [taylor]: Taking taylor expansion of -1 in x
12.311 * [taylor]: Taking taylor expansion of x in x
12.311 * [taylor]: Taking taylor expansion of (/ (- (exp (/ -1 x)) (exp (/ 1 x))) (+ (exp (/ 1 x)) (exp (/ -1 x)))) in x
12.311 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
12.311 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
12.311 * [taylor]: Taking taylor expansion of (/ -1 x) in x
12.311 * [taylor]: Taking taylor expansion of -1 in x
12.311 * [taylor]: Taking taylor expansion of x in x
12.312 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.312 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.312 * [taylor]: Taking taylor expansion of x in x
12.312 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
12.312 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.312 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.312 * [taylor]: Taking taylor expansion of x in x
12.312 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
12.312 * [taylor]: Taking taylor expansion of (/ -1 x) in x
12.312 * [taylor]: Taking taylor expansion of -1 in x
12.312 * [taylor]: Taking taylor expansion of x in x
12.320 * * * * [progress]: [ 3 / 3 ] generating series at (2 2)
12.321 * [approximate]: Taking taylor expansion of (+ (exp x) (exp (- x))) in (x) around 0
12.321 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
12.321 * [taylor]: Taking taylor expansion of (exp x) in x
12.321 * [taylor]: Taking taylor expansion of x in x
12.321 * [taylor]: Taking taylor expansion of (exp (- x)) in x
12.321 * [taylor]: Taking taylor expansion of (- x) in x
12.321 * [taylor]: Taking taylor expansion of x in x
12.321 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
12.321 * [taylor]: Taking taylor expansion of (exp x) in x
12.321 * [taylor]: Taking taylor expansion of x in x
12.321 * [taylor]: Taking taylor expansion of (exp (- x)) in x
12.321 * [taylor]: Taking taylor expansion of (- x) in x
12.321 * [taylor]: Taking taylor expansion of x in x
12.337 * [approximate]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in (x) around 0
12.337 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
12.337 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.337 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.337 * [taylor]: Taking taylor expansion of x in x
12.337 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
12.337 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
12.337 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.337 * [taylor]: Taking taylor expansion of x in x
12.338 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
12.338 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.338 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.338 * [taylor]: Taking taylor expansion of x in x
12.338 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
12.338 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
12.338 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.338 * [taylor]: Taking taylor expansion of x in x
12.341 * [approximate]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in (x) around 0
12.341 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
12.341 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.341 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.341 * [taylor]: Taking taylor expansion of x in x
12.341 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
12.341 * [taylor]: Taking taylor expansion of (/ -1 x) in x
12.341 * [taylor]: Taking taylor expansion of -1 in x
12.341 * [taylor]: Taking taylor expansion of x in x
12.342 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
12.342 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
12.342 * [taylor]: Taking taylor expansion of (/ 1 x) in x
12.342 * [taylor]: Taking taylor expansion of x in x
12.342 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
12.342 * [taylor]: Taking taylor expansion of (/ -1 x) in x
12.342 * [taylor]: Taking taylor expansion of -1 in x
12.342 * [taylor]: Taking taylor expansion of x in x
12.344 * * * [progress]: simplifying candidates
12.346 * [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))))
  (expm1 (+ (exp x) (exp (- x))))
  (log1p (+ (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) (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)))
  (+ (pow x 2) (+ (* 1/12 (pow x 4)) 2))
  (+ (exp x) (exp (- x)))
  (+ (exp (* -1 x)) (exp x))
12.350 * * [simplify]: iteration  0 :  147  enodes  (cost  1789 )
12.378 * * [simplify]: iteration  1 :  355  enodes  (cost  1599 )
12.469 * * [simplify]: iteration  2 :  1216  enodes  (cost  1426 )
13.253 * * [simplify]: iteration  done :  5000  enodes  (cost  1425 )
13.253 * [simplify]: Simplified to:
   (fma (* (cbrt (exp x)) (cbrt (exp x))) (cbrt (exp x)) (- (exp (- x))))
  (* (exp (- x)) 0)
  (fma (* (cbrt (exp x)) (cbrt (exp x))) (cbrt (exp x)) (- (exp (- x))))
  (* (exp (- x)) 0)
  (fma (* (cbrt (exp x)) (cbrt (exp x))) (cbrt (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) (exp (- x)))
  (* (exp (- x)) 0)
  (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) (pow (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) (pow (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) (exp (- x))) (+ (exp x) (exp (- x))))
  (expm1 (+ (exp x) (exp (- x))))
  (log1p (+ (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) (pow (exp (- x)) 3))
  (- (exp (* x -2)) (- 1 (exp (+ x x))))
  (- (exp (+ x x)) (exp (* x -2)))
  (- (exp x) (exp (- x)))
  (+ (exp x) (exp (- x)))
  (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 5) 2/15 x) (* 1/3 (pow x 3)))
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
  (fma x x (fma 1/12 (pow x 4) 2))
  (+ (exp x) (exp (- x)))
  (+ (exp x) (exp (- x)))
13.254 * * * [progress]: adding candidates to table
13.444 * * [progress]: iteration 2 / 4
13.445 * * * [progress]: picking best candidate
13.448 * * * * [pick]: Picked  #<alt (λ (x) (tanh x))>
13.448 * * * [progress]: localizing error
13.450 * * * [progress]: generating rewritten candidates
13.450 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
13.450 * * * [progress]: generating series expansions
13.450 * * * * [progress]: [ 1 / 1 ] generating series at (2)
13.451 * [approximate]: Taking taylor expansion of (tanh x) in (x) around 0
13.451 * [taylor]: Taking taylor expansion of (tanh x) in x
13.451 * [taylor]: Rewrote expression to (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
13.451 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
13.451 * [taylor]: Taking taylor expansion of (exp x) in x
13.451 * [taylor]: Taking taylor expansion of x in x
13.451 * [taylor]: Taking taylor expansion of (exp (- x)) in x
13.451 * [taylor]: Taking taylor expansion of (- x) in x
13.451 * [taylor]: Taking taylor expansion of x in x
13.452 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
13.452 * [taylor]: Taking taylor expansion of (exp x) in x
13.452 * [taylor]: Taking taylor expansion of x in x
13.452 * [taylor]: Taking taylor expansion of (exp (- x)) in x
13.452 * [taylor]: Taking taylor expansion of (- x) in x
13.452 * [taylor]: Taking taylor expansion of x in x
13.455 * [taylor]: Taking taylor expansion of (tanh x) in x
13.455 * [taylor]: Rewrote expression to (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
13.455 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
13.455 * [taylor]: Taking taylor expansion of (exp x) in x
13.455 * [taylor]: Taking taylor expansion of x in x
13.455 * [taylor]: Taking taylor expansion of (exp (- x)) in x
13.455 * [taylor]: Taking taylor expansion of (- x) in x
13.455 * [taylor]: Taking taylor expansion of x in x
13.456 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
13.456 * [taylor]: Taking taylor expansion of (exp x) in x
13.456 * [taylor]: Taking taylor expansion of x in x
13.456 * [taylor]: Taking taylor expansion of (exp (- x)) in x
13.456 * [taylor]: Taking taylor expansion of (- x) in x
13.456 * [taylor]: Taking taylor expansion of x in x
13.502 * [approximate]: Taking taylor expansion of (tanh (/ 1 x)) in (x) around 0
13.502 * [taylor]: Taking taylor expansion of (tanh (/ 1 x)) in x
13.502 * [taylor]: Rewrote expression to (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x)))))
13.502 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
13.502 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
13.502 * [taylor]: Taking taylor expansion of (/ 1 x) in x
13.502 * [taylor]: Taking taylor expansion of x in x
13.502 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
13.502 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
13.502 * [taylor]: Taking taylor expansion of (/ 1 x) in x
13.502 * [taylor]: Taking taylor expansion of x in x
13.503 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
13.503 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
13.503 * [taylor]: Taking taylor expansion of (/ 1 x) in x
13.503 * [taylor]: Taking taylor expansion of x in x
13.503 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
13.503 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
13.503 * [taylor]: Taking taylor expansion of (/ 1 x) in x
13.503 * [taylor]: Taking taylor expansion of x in x
13.504 * [taylor]: Taking taylor expansion of (tanh (/ 1 x)) in x
13.504 * [taylor]: Rewrote expression to (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x)))))
13.504 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
13.504 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
13.504 * [taylor]: Taking taylor expansion of (/ 1 x) in x
13.504 * [taylor]: Taking taylor expansion of x in x
13.505 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
13.505 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
13.505 * [taylor]: Taking taylor expansion of (/ 1 x) in x
13.505 * [taylor]: Taking taylor expansion of x in x
13.505 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
13.505 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
13.505 * [taylor]: Taking taylor expansion of (/ 1 x) in x
13.505 * [taylor]: Taking taylor expansion of x in x
13.506 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
13.506 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
13.506 * [taylor]: Taking taylor expansion of (/ 1 x) in x
13.506 * [taylor]: Taking taylor expansion of x in x
13.515 * [approximate]: Taking taylor expansion of (tanh (/ -1 x)) in (x) around 0
13.515 * [taylor]: Taking taylor expansion of (tanh (/ -1 x)) in x
13.515 * [taylor]: Rewrote expression to (/ (- (exp (/ -1 x)) (exp (- (/ -1 x)))) (+ (exp (/ -1 x)) (exp (- (/ -1 x)))))
13.515 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (- (/ -1 x)))) in x
13.515 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
13.515 * [taylor]: Taking taylor expansion of (/ -1 x) in x
13.515 * [taylor]: Taking taylor expansion of -1 in x
13.515 * [taylor]: Taking taylor expansion of x in x
13.515 * [taylor]: Taking taylor expansion of (exp (- (/ -1 x))) in x
13.515 * [taylor]: Taking taylor expansion of (- (/ -1 x)) in x
13.515 * [taylor]: Taking taylor expansion of (/ -1 x) in x
13.515 * [taylor]: Taking taylor expansion of -1 in x
13.515 * [taylor]: Taking taylor expansion of x in x
13.516 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) (exp (- (/ -1 x)))) in x
13.516 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
13.516 * [taylor]: Taking taylor expansion of (/ -1 x) in x
13.516 * [taylor]: Taking taylor expansion of -1 in x
13.516 * [taylor]: Taking taylor expansion of x in x
13.516 * [taylor]: Taking taylor expansion of (exp (- (/ -1 x))) in x
13.516 * [taylor]: Taking taylor expansion of (- (/ -1 x)) in x
13.516 * [taylor]: Taking taylor expansion of (/ -1 x) in x
13.516 * [taylor]: Taking taylor expansion of -1 in x
13.516 * [taylor]: Taking taylor expansion of x in x
13.517 * [taylor]: Taking taylor expansion of (tanh (/ -1 x)) in x
13.517 * [taylor]: Rewrote expression to (/ (- (exp (/ -1 x)) (exp (- (/ -1 x)))) (+ (exp (/ -1 x)) (exp (- (/ -1 x)))))
13.517 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (- (/ -1 x)))) in x
13.517 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
13.517 * [taylor]: Taking taylor expansion of (/ -1 x) in x
13.517 * [taylor]: Taking taylor expansion of -1 in x
13.517 * [taylor]: Taking taylor expansion of x in x
13.518 * [taylor]: Taking taylor expansion of (exp (- (/ -1 x))) in x
13.518 * [taylor]: Taking taylor expansion of (- (/ -1 x)) in x
13.518 * [taylor]: Taking taylor expansion of (/ -1 x) in x
13.518 * [taylor]: Taking taylor expansion of -1 in x
13.518 * [taylor]: Taking taylor expansion of x in x
13.518 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) (exp (- (/ -1 x)))) in x
13.518 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
13.518 * [taylor]: Taking taylor expansion of (/ -1 x) in x
13.518 * [taylor]: Taking taylor expansion of -1 in x
13.518 * [taylor]: Taking taylor expansion of x in x
13.519 * [taylor]: Taking taylor expansion of (exp (- (/ -1 x))) in x
13.519 * [taylor]: Taking taylor expansion of (- (/ -1 x)) in x
13.519 * [taylor]: Taking taylor expansion of (/ -1 x) in x
13.519 * [taylor]: Taking taylor expansion of -1 in x
13.519 * [taylor]: Taking taylor expansion of x in x
13.527 * * * [progress]: simplifying candidates
13.528 * [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)))
13.529 * * [simplify]: iteration  0 :  44  enodes  (cost  113 )
13.537 * * [simplify]: iteration  1 :  96  enodes  (cost  87 )
13.555 * * [simplify]: iteration  2 :  219  enodes  (cost  82 )
13.606 * * [simplify]: iteration  3 :  635  enodes  (cost  81 )
13.858 * * [simplify]: iteration  4 :  2994  enodes  (cost  81 )
14.811 * * [simplify]: iteration  done :  5000  enodes  (cost  81 )
14.811 * [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)
14.812 * * * [progress]: adding candidates to table
14.843 * * [progress]: iteration 3 / 4
14.843 * * * [progress]: picking best candidate
14.845 * * * * [pick]: Picked  #<alt (λ (x) (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))>
14.845 * * * [progress]: localizing error
14.853 * * * [progress]: generating rewritten candidates
14.853 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
14.854 * * * * [progress]: [ 2 / 2 ] rewriting at (2 3)
14.854 * * * [progress]: generating series expansions
14.854 * * * * [progress]: [ 1 / 2 ] generating series at (2)
14.855 * [approximate]: Taking taylor expansion of (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)) in (x) around 0
14.855 * [taylor]: Taking taylor expansion of (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)) in x
14.855 * [taylor]: Rewrote expression to (+ (* (pow x 3) -1/3) (fma 2/15 (pow x 5) x))
14.855 * [taylor]: Taking taylor expansion of (* (pow x 3) -1/3) in x
14.855 * [taylor]: Taking taylor expansion of (pow x 3) in x
14.855 * [taylor]: Taking taylor expansion of x in x
14.855 * [taylor]: Taking taylor expansion of -1/3 in x
14.855 * [taylor]: Taking taylor expansion of (fma 2/15 (pow x 5) x) in x
14.855 * [taylor]: Rewrote expression to (+ (* 2/15 (pow x 5)) x)
14.855 * [taylor]: Taking taylor expansion of (* 2/15 (pow x 5)) in x
14.855 * [taylor]: Taking taylor expansion of 2/15 in x
14.855 * [taylor]: Taking taylor expansion of (pow x 5) in x
14.855 * [taylor]: Taking taylor expansion of x in x
14.855 * [taylor]: Taking taylor expansion of x in x
14.855 * [taylor]: Taking taylor expansion of (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)) in x
14.855 * [taylor]: Rewrote expression to (+ (* (pow x 3) -1/3) (fma 2/15 (pow x 5) x))
14.855 * [taylor]: Taking taylor expansion of (* (pow x 3) -1/3) in x
14.855 * [taylor]: Taking taylor expansion of (pow x 3) in x
14.855 * [taylor]: Taking taylor expansion of x in x
14.855 * [taylor]: Taking taylor expansion of -1/3 in x
14.855 * [taylor]: Taking taylor expansion of (fma 2/15 (pow x 5) x) in x
14.855 * [taylor]: Rewrote expression to (+ (* 2/15 (pow x 5)) x)
14.855 * [taylor]: Taking taylor expansion of (* 2/15 (pow x 5)) in x
14.855 * [taylor]: Taking taylor expansion of 2/15 in x
14.855 * [taylor]: Taking taylor expansion of (pow x 5) in x
14.855 * [taylor]: Taking taylor expansion of x in x
14.855 * [taylor]: Taking taylor expansion of x in x
14.864 * [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
14.864 * [taylor]: Taking taylor expansion of (fma (pow (/ 1 x) 3) -1/3 (fma 2/15 (pow (/ 1 x) 5) (/ 1 x))) in x
14.864 * [taylor]: Rewrote expression to (+ (* (pow (/ 1 x) 3) -1/3) (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)))
14.864 * [taylor]: Taking taylor expansion of (* (pow (/ 1 x) 3) -1/3) in x
14.864 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 3) in x
14.864 * [taylor]: Taking taylor expansion of (/ 1 x) in x
14.864 * [taylor]: Taking taylor expansion of x in x
14.864 * [taylor]: Taking taylor expansion of -1/3 in x
14.864 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)) in x
14.864 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ 1 x) 5)) (/ 1 x))
14.865 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ 1 x) 5)) in x
14.865 * [taylor]: Taking taylor expansion of 2/15 in x
14.865 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 5) in x
14.865 * [taylor]: Taking taylor expansion of (/ 1 x) in x
14.865 * [taylor]: Taking taylor expansion of x in x
14.865 * [taylor]: Taking taylor expansion of (/ 1 x) in x
14.865 * [taylor]: Taking taylor expansion of x in x
14.865 * [taylor]: Taking taylor expansion of (fma (pow (/ 1 x) 3) -1/3 (fma 2/15 (pow (/ 1 x) 5) (/ 1 x))) in x
14.865 * [taylor]: Rewrote expression to (+ (* (pow (/ 1 x) 3) -1/3) (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)))
14.865 * [taylor]: Taking taylor expansion of (* (pow (/ 1 x) 3) -1/3) in x
14.865 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 3) in x
14.865 * [taylor]: Taking taylor expansion of (/ 1 x) in x
14.865 * [taylor]: Taking taylor expansion of x in x
14.866 * [taylor]: Taking taylor expansion of -1/3 in x
14.866 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)) in x
14.866 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ 1 x) 5)) (/ 1 x))
14.866 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ 1 x) 5)) in x
14.866 * [taylor]: Taking taylor expansion of 2/15 in x
14.866 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 5) in x
14.866 * [taylor]: Taking taylor expansion of (/ 1 x) in x
14.866 * [taylor]: Taking taylor expansion of x in x
14.866 * [taylor]: Taking taylor expansion of (/ 1 x) in x
14.866 * [taylor]: Taking taylor expansion of x in x
14.884 * [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
14.884 * [taylor]: Taking taylor expansion of (fma (pow (/ -1 x) 3) -1/3 (fma 2/15 (pow (/ -1 x) 5) (/ -1 x))) in x
14.884 * [taylor]: Rewrote expression to (+ (* (pow (/ -1 x) 3) -1/3) (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)))
14.884 * [taylor]: Taking taylor expansion of (* (pow (/ -1 x) 3) -1/3) in x
14.884 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 3) in x
14.884 * [taylor]: Taking taylor expansion of (/ -1 x) in x
14.884 * [taylor]: Taking taylor expansion of -1 in x
14.884 * [taylor]: Taking taylor expansion of x in x
14.885 * [taylor]: Taking taylor expansion of -1/3 in x
14.885 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)) in x
14.885 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ -1 x) 5)) (/ -1 x))
14.885 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ -1 x) 5)) in x
14.885 * [taylor]: Taking taylor expansion of 2/15 in x
14.885 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 5) in x
14.885 * [taylor]: Taking taylor expansion of (/ -1 x) in x
14.885 * [taylor]: Taking taylor expansion of -1 in x
14.885 * [taylor]: Taking taylor expansion of x in x
14.885 * [taylor]: Taking taylor expansion of (/ -1 x) in x
14.885 * [taylor]: Taking taylor expansion of -1 in x
14.885 * [taylor]: Taking taylor expansion of x in x
14.886 * [taylor]: Taking taylor expansion of (fma (pow (/ -1 x) 3) -1/3 (fma 2/15 (pow (/ -1 x) 5) (/ -1 x))) in x
14.886 * [taylor]: Rewrote expression to (+ (* (pow (/ -1 x) 3) -1/3) (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)))
14.886 * [taylor]: Taking taylor expansion of (* (pow (/ -1 x) 3) -1/3) in x
14.886 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 3) in x
14.886 * [taylor]: Taking taylor expansion of (/ -1 x) in x
14.886 * [taylor]: Taking taylor expansion of -1 in x
14.886 * [taylor]: Taking taylor expansion of x in x
14.886 * [taylor]: Taking taylor expansion of -1/3 in x
14.886 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)) in x
14.886 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ -1 x) 5)) (/ -1 x))
14.886 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ -1 x) 5)) in x
14.886 * [taylor]: Taking taylor expansion of 2/15 in x
14.886 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 5) in x
14.886 * [taylor]: Taking taylor expansion of (/ -1 x) in x
14.886 * [taylor]: Taking taylor expansion of -1 in x
14.886 * [taylor]: Taking taylor expansion of x in x
14.887 * [taylor]: Taking taylor expansion of (/ -1 x) in x
14.887 * [taylor]: Taking taylor expansion of -1 in x
14.887 * [taylor]: Taking taylor expansion of x in x
14.905 * * * * [progress]: [ 2 / 2 ] generating series at (2 3)
14.906 * [approximate]: Taking taylor expansion of (fma 2/15 (pow x 5) x) in (x) around 0
14.906 * [taylor]: Taking taylor expansion of (fma 2/15 (pow x 5) x) in x
14.906 * [taylor]: Rewrote expression to (+ (* 2/15 (pow x 5)) x)
14.906 * [taylor]: Taking taylor expansion of (* 2/15 (pow x 5)) in x
14.906 * [taylor]: Taking taylor expansion of 2/15 in x
14.906 * [taylor]: Taking taylor expansion of (pow x 5) in x
14.906 * [taylor]: Taking taylor expansion of x in x
14.906 * [taylor]: Taking taylor expansion of x in x
14.906 * [taylor]: Taking taylor expansion of (fma 2/15 (pow x 5) x) in x
14.906 * [taylor]: Rewrote expression to (+ (* 2/15 (pow x 5)) x)
14.906 * [taylor]: Taking taylor expansion of (* 2/15 (pow x 5)) in x
14.906 * [taylor]: Taking taylor expansion of 2/15 in x
14.906 * [taylor]: Taking taylor expansion of (pow x 5) in x
14.906 * [taylor]: Taking taylor expansion of x in x
14.906 * [taylor]: Taking taylor expansion of x in x
14.928 * [approximate]: Taking taylor expansion of (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)) in (x) around 0
14.928 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)) in x
14.928 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ 1 x) 5)) (/ 1 x))
14.928 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ 1 x) 5)) in x
14.928 * [taylor]: Taking taylor expansion of 2/15 in x
14.929 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 5) in x
14.929 * [taylor]: Taking taylor expansion of (/ 1 x) in x
14.929 * [taylor]: Taking taylor expansion of x in x
14.929 * [taylor]: Taking taylor expansion of (/ 1 x) in x
14.929 * [taylor]: Taking taylor expansion of x in x
14.929 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ 1 x) 5) (/ 1 x)) in x
14.929 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ 1 x) 5)) (/ 1 x))
14.929 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ 1 x) 5)) in x
14.929 * [taylor]: Taking taylor expansion of 2/15 in x
14.929 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 5) in x
14.929 * [taylor]: Taking taylor expansion of (/ 1 x) in x
14.929 * [taylor]: Taking taylor expansion of x in x
14.930 * [taylor]: Taking taylor expansion of (/ 1 x) in x
14.930 * [taylor]: Taking taylor expansion of x in x
14.973 * [approximate]: Taking taylor expansion of (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)) in (x) around 0
14.973 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)) in x
14.973 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ -1 x) 5)) (/ -1 x))
14.973 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ -1 x) 5)) in x
14.973 * [taylor]: Taking taylor expansion of 2/15 in x
14.973 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 5) in x
14.973 * [taylor]: Taking taylor expansion of (/ -1 x) in x
14.973 * [taylor]: Taking taylor expansion of -1 in x
14.973 * [taylor]: Taking taylor expansion of x in x
14.973 * [taylor]: Taking taylor expansion of (/ -1 x) in x
14.973 * [taylor]: Taking taylor expansion of -1 in x
14.973 * [taylor]: Taking taylor expansion of x in x
14.974 * [taylor]: Taking taylor expansion of (fma 2/15 (pow (/ -1 x) 5) (/ -1 x)) in x
14.974 * [taylor]: Rewrote expression to (+ (* 2/15 (pow (/ -1 x) 5)) (/ -1 x))
14.974 * [taylor]: Taking taylor expansion of (* 2/15 (pow (/ -1 x) 5)) in x
14.974 * [taylor]: Taking taylor expansion of 2/15 in x
14.974 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 5) in x
14.974 * [taylor]: Taking taylor expansion of (/ -1 x) in x
14.974 * [taylor]: Taking taylor expansion of -1 in x
14.974 * [taylor]: Taking taylor expansion of x in x
14.974 * [taylor]: Taking taylor expansion of (/ -1 x) in x
14.974 * [taylor]: Taking taylor expansion of -1 in x
14.974 * [taylor]: Taking taylor expansion of x in x
15.022 * * * [progress]: simplifying candidates
15.023 * [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)))
15.024 * * [simplify]: iteration  0 :  33  enodes  (cost  298 )
15.028 * * [simplify]: iteration  1 :  56  enodes  (cost  292 )
15.038 * * [simplify]: iteration  2 :  160  enodes  (cost  258 )
15.081 * * [simplify]: iteration  3 :  574  enodes  (cost  255 )
15.326 * * [simplify]: iteration  4 :  3211  enodes  (cost  255 )
16.704 * * [simplify]: iteration  done :  5001  enodes  (cost  255 )
16.705 * [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 -1/3 (pow x 3) (fma 2/15 (pow x 5) x))
  (fma -1/3 (pow x 3) (fma 2/15 (pow x 5) x))
  (fma -1/3 (pow x 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)
16.705 * * * [progress]: adding candidates to table
16.778 * [progress]: [Phase 3 of 3] Extracting.
16.778 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (tanh x))> #<alt (λ (x) (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))>)
16.779 * * * [regime-changes]: Trying 1 branch expressions: (x)
16.779 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (tanh x))> #<alt (λ (x) (fma (pow x 3) -1/3 (fma 2/15 (pow x 5) x)))>)
16.790 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
16.790 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (tanh x)
16.790 * * [simplify]: iteration  0 :  2  enodes  (cost  2 )
16.790 * * [simplify]: iteration  done :  2  enodes  (cost  2 )
16.790 * [simplify]: Simplified to:
   (tanh x)
20.315 * [regime-testing]: Baseline error score: 0.015876984623077885
20.318 * [regime-testing]: Oracle error score: 0.002875359419927491
20.319 * [regime-testing]: End program error score: 0.015876984623077885