13.821 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.103 * * * [progress]: [2/2] Setting up program.
0.105 * [progress]: [Phase 2 of 3] Improving.
0.105 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
0.107 * * [simplify]: iteration  0 :  15  enodes  (cost  9 )
0.109 * * [simplify]: iteration  1 :  24  enodes  (cost  9 )
0.110 * * [simplify]: iteration  2 :  32  enodes  (cost  9 )
0.111 * * [simplify]: iteration  3 :  44  enodes  (cost  9 )
0.113 * * [simplify]: iteration  4 :  59  enodes  (cost  9 )
0.114 * * [simplify]: iteration  5 :  174  enodes  (cost  9 )
0.119 * * [simplify]: iteration  6 :  1153  enodes  (cost  9 )
0.148 * * [simplify]: iteration  7 :  5001  enodes  (cost  9 )
0.148 * [simplify]: Simplified to:
   (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
0.148 * * [progress]: iteration 1 / 4
0.148 * * * [progress]: picking best candidate
0.150 * * * * [pick]: Picked  #<alt (λ (x) (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))))>
0.150 * * * [progress]: localizing error
0.157 * * * [progress]: generating rewritten candidates
0.157 * * * * [progress]: [ 1 / 2 ] rewriting at (2 1)
0.163 * * * * [progress]: [ 2 / 2 ] rewriting at (2)
0.191 * * * [progress]: generating series expansions
0.191 * * * * [progress]: [ 1 / 2 ] generating series at (2 1)
0.191 * [approximate]: Taking taylor expansion of (- (exp x) (exp (- x))) in (x) around 0
0.191 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
0.191 * [taylor]: Taking taylor expansion of (exp x) in x
0.191 * [taylor]: Taking taylor expansion of x in x
0.191 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.191 * [taylor]: Taking taylor expansion of (- x) in x
0.191 * [taylor]: Taking taylor expansion of x in x
0.192 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
0.192 * [taylor]: Taking taylor expansion of (exp x) in x
0.192 * [taylor]: Taking taylor expansion of x in x
0.192 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.192 * [taylor]: Taking taylor expansion of (- x) in x
0.192 * [taylor]: Taking taylor expansion of x in x
0.217 * [approximate]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in (x) around 0
0.217 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.217 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.217 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.217 * [taylor]: Taking taylor expansion of x in x
0.218 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.218 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.218 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.218 * [taylor]: Taking taylor expansion of x in x
0.218 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.218 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.218 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.218 * [taylor]: Taking taylor expansion of x in x
0.219 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.219 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.219 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.219 * [taylor]: Taking taylor expansion of x in x
0.222 * [approximate]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in (x) around 0
0.222 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
0.222 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.222 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.222 * [taylor]: Taking taylor expansion of -1 in x
0.222 * [taylor]: Taking taylor expansion of x in x
0.223 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.223 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.223 * [taylor]: Taking taylor expansion of x in x
0.223 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
0.223 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.223 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.223 * [taylor]: Taking taylor expansion of -1 in x
0.223 * [taylor]: Taking taylor expansion of x in x
0.223 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.223 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.223 * [taylor]: Taking taylor expansion of x in x
0.227 * * * * [progress]: [ 2 / 2 ] generating series at (2)
0.227 * [approximate]: Taking taylor expansion of (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) in (x) around 0
0.227 * [taylor]: Taking taylor expansion of (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) in x
0.227 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
0.227 * [taylor]: Taking taylor expansion of (exp x) in x
0.227 * [taylor]: Taking taylor expansion of x in x
0.227 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.227 * [taylor]: Taking taylor expansion of (- x) in x
0.227 * [taylor]: Taking taylor expansion of x in x
0.228 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
0.228 * [taylor]: Taking taylor expansion of (exp x) in x
0.228 * [taylor]: Taking taylor expansion of x in x
0.228 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.228 * [taylor]: Taking taylor expansion of (- x) in x
0.228 * [taylor]: Taking taylor expansion of x in x
0.231 * [taylor]: Taking taylor expansion of (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) in x
0.231 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
0.231 * [taylor]: Taking taylor expansion of (exp x) in x
0.231 * [taylor]: Taking taylor expansion of x in x
0.231 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.231 * [taylor]: Taking taylor expansion of (- x) in x
0.231 * [taylor]: Taking taylor expansion of x in x
0.232 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
0.232 * [taylor]: Taking taylor expansion of (exp x) in x
0.232 * [taylor]: Taking taylor expansion of x in x
0.232 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.232 * [taylor]: Taking taylor expansion of (- x) in x
0.232 * [taylor]: Taking taylor expansion of x in x
0.276 * [approximate]: Taking taylor expansion of (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in (x) around 0
0.276 * [taylor]: Taking taylor expansion of (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in x
0.276 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.276 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.276 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.276 * [taylor]: Taking taylor expansion of x in x
0.277 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.277 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.277 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.277 * [taylor]: Taking taylor expansion of x in x
0.277 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.277 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.277 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.277 * [taylor]: Taking taylor expansion of x in x
0.278 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.278 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.278 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.278 * [taylor]: Taking taylor expansion of x in x
0.279 * [taylor]: Taking taylor expansion of (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in x
0.279 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.279 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.279 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.279 * [taylor]: Taking taylor expansion of x in x
0.279 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.279 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.279 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.279 * [taylor]: Taking taylor expansion of x in x
0.280 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.280 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.280 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.280 * [taylor]: Taking taylor expansion of x in x
0.280 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.280 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.280 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.280 * [taylor]: Taking taylor expansion of x in x
0.290 * [approximate]: Taking taylor expansion of (/ (- (exp (/ -1 x)) (exp (/ 1 x))) (+ (exp (/ 1 x)) (exp (/ -1 x)))) in (x) around 0
0.290 * [taylor]: Taking taylor expansion of (/ (- (exp (/ -1 x)) (exp (/ 1 x))) (+ (exp (/ 1 x)) (exp (/ -1 x)))) in x
0.290 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
0.290 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.290 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.290 * [taylor]: Taking taylor expansion of -1 in x
0.290 * [taylor]: Taking taylor expansion of x in x
0.290 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.290 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.290 * [taylor]: Taking taylor expansion of x in x
0.291 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.291 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.291 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.291 * [taylor]: Taking taylor expansion of x in x
0.291 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.291 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.291 * [taylor]: Taking taylor expansion of -1 in x
0.291 * [taylor]: Taking taylor expansion of x in x
0.292 * [taylor]: Taking taylor expansion of (/ (- (exp (/ -1 x)) (exp (/ 1 x))) (+ (exp (/ 1 x)) (exp (/ -1 x)))) in x
0.292 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
0.292 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.292 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.292 * [taylor]: Taking taylor expansion of -1 in x
0.292 * [taylor]: Taking taylor expansion of x in x
0.292 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.292 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.292 * [taylor]: Taking taylor expansion of x in x
0.293 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.293 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.293 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.293 * [taylor]: Taking taylor expansion of x in x
0.293 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.293 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.293 * [taylor]: Taking taylor expansion of -1 in x
0.293 * [taylor]: Taking taylor expansion of x in x
0.301 * * * [progress]: simplifying candidates
0.302 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (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)))
  (- (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)))
0.307 * * [simplify]: iteration  0 :  252  enodes  (cost  836 )
0.312 * * [simplify]: iteration  1 :  806  enodes  (cost  782 )
0.326 * * [simplify]: iteration  2 :  3319  enodes  (cost  775 )
0.402 * * [simplify]: iteration  3 :  5002  enodes  (cost  775 )
0.405 * [simplify]: Simplified to:
   (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))) (pow (exp -1) (* 2 x)))
  (- (exp (* -1 x)))
  (- (/ (exp (+ x x)) 1) (/ (pow (exp x) -2) 1))
  (+ (exp (* -1 x)) (exp x))
  (+ (sqrt (exp x)) (sqrt (exp (- x))))
  (- (sqrt (exp x)) (sqrt (exp (- x))))
  (- (exp x) (exp (- x)))
  (- (exp (* -1 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 (* -1 x))) (+ (exp (* -1 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 (* -1 x))) (+ (exp (* -1 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))))
  (/ (exp x) (+ (exp (* -1 x)) (exp x)))
  (/ 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 (* -1 x))) (+ (exp (* -1 x)) (exp x)))
  1
  (/ (- (exp x) (exp (* -1 x))) (+ (exp (* -1 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 (* -1 x))) (+ (exp (* -1 x)) (exp x)))
  1
  (/ (- (exp x) (exp (* -1 x))) (+ (exp (* -1 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)) 1) (/ (pow (exp x) -2) 1)))
  (* (+ (+ 1 (exp (+ x x))) (pow (exp -1) (* 2 x))) (+ (exp (* -1 x)) (exp x)))
  (+ (pow (exp x) -2) (+ 1 (+ 1 (exp (+ x x)))))
  (+ (* 1/3 (pow x 3)) (+ (* 1/60 (pow x 5)) (* 2 x)))
  (- (exp x) (exp (- x)))
  (- (exp x) (exp (- x)))
  (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))
  (/ (- (exp x) (exp (* -1 x))) (+ (exp (* -1 x)) (exp x)))
  (/ (- (exp x) (exp (* -1 x))) (+ (exp (* -1 x)) (exp x)))
0.405 * * * [progress]: adding candidates to table
0.534 * * [progress]: iteration 2 / 4
0.534 * * * [progress]: picking best candidate
0.537 * * * * [pick]: Picked  #<alt (λ (x) (tanh x))>
0.537 * * * [progress]: localizing error
0.539 * * * [progress]: generating rewritten candidates
0.539 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.540 * * * [progress]: generating series expansions
0.540 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.540 * [approximate]: Taking taylor expansion of (tanh x) in (x) around 0
0.540 * [taylor]: Taking taylor expansion of (tanh x) in x
0.541 * [taylor]: Rewrote expression to (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
0.541 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
0.541 * [taylor]: Taking taylor expansion of (exp x) in x
0.541 * [taylor]: Taking taylor expansion of x in x
0.541 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.541 * [taylor]: Taking taylor expansion of (- x) in x
0.541 * [taylor]: Taking taylor expansion of x in x
0.542 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
0.542 * [taylor]: Taking taylor expansion of (exp x) in x
0.542 * [taylor]: Taking taylor expansion of x in x
0.542 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.542 * [taylor]: Taking taylor expansion of (- x) in x
0.542 * [taylor]: Taking taylor expansion of x in x
0.545 * [taylor]: Taking taylor expansion of (tanh x) in x
0.545 * [taylor]: Rewrote expression to (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
0.545 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
0.545 * [taylor]: Taking taylor expansion of (exp x) in x
0.545 * [taylor]: Taking taylor expansion of x in x
0.545 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.545 * [taylor]: Taking taylor expansion of (- x) in x
0.545 * [taylor]: Taking taylor expansion of x in x
0.546 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
0.546 * [taylor]: Taking taylor expansion of (exp x) in x
0.546 * [taylor]: Taking taylor expansion of x in x
0.546 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.546 * [taylor]: Taking taylor expansion of (- x) in x
0.546 * [taylor]: Taking taylor expansion of x in x
0.590 * [approximate]: Taking taylor expansion of (tanh (/ 1 x)) in (x) around 0
0.590 * [taylor]: Taking taylor expansion of (tanh (/ 1 x)) in x
0.590 * [taylor]: Rewrote expression to (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x)))))
0.590 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.590 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.590 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.590 * [taylor]: Taking taylor expansion of x in x
0.590 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.590 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.590 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.590 * [taylor]: Taking taylor expansion of x in x
0.591 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.591 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.591 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.591 * [taylor]: Taking taylor expansion of x in x
0.591 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.591 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.591 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.591 * [taylor]: Taking taylor expansion of x in x
0.592 * [taylor]: Taking taylor expansion of (tanh (/ 1 x)) in x
0.592 * [taylor]: Rewrote expression to (/ (- (exp (/ 1 x)) (exp (- (/ 1 x)))) (+ (exp (/ 1 x)) (exp (- (/ 1 x)))))
0.592 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.592 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.592 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.592 * [taylor]: Taking taylor expansion of x in x
0.592 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.592 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.592 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.592 * [taylor]: Taking taylor expansion of x in x
0.593 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.593 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.593 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.593 * [taylor]: Taking taylor expansion of x in x
0.593 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.593 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.593 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.593 * [taylor]: Taking taylor expansion of x in x
0.602 * [approximate]: Taking taylor expansion of (tanh (/ -1 x)) in (x) around 0
0.602 * [taylor]: Taking taylor expansion of (tanh (/ -1 x)) in x
0.602 * [taylor]: Rewrote expression to (/ (- (exp (/ -1 x)) (exp (- (/ -1 x)))) (+ (exp (/ -1 x)) (exp (- (/ -1 x)))))
0.602 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (- (/ -1 x)))) in x
0.602 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.602 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.602 * [taylor]: Taking taylor expansion of -1 in x
0.602 * [taylor]: Taking taylor expansion of x in x
0.603 * [taylor]: Taking taylor expansion of (exp (- (/ -1 x))) in x
0.603 * [taylor]: Taking taylor expansion of (- (/ -1 x)) in x
0.603 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.603 * [taylor]: Taking taylor expansion of -1 in x
0.603 * [taylor]: Taking taylor expansion of x in x
0.604 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) (exp (- (/ -1 x)))) in x
0.604 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.604 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.604 * [taylor]: Taking taylor expansion of -1 in x
0.604 * [taylor]: Taking taylor expansion of x in x
0.604 * [taylor]: Taking taylor expansion of (exp (- (/ -1 x))) in x
0.604 * [taylor]: Taking taylor expansion of (- (/ -1 x)) in x
0.604 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.604 * [taylor]: Taking taylor expansion of -1 in x
0.604 * [taylor]: Taking taylor expansion of x in x
0.605 * [taylor]: Taking taylor expansion of (tanh (/ -1 x)) in x
0.605 * [taylor]: Rewrote expression to (/ (- (exp (/ -1 x)) (exp (- (/ -1 x)))) (+ (exp (/ -1 x)) (exp (- (/ -1 x)))))
0.605 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (- (/ -1 x)))) in x
0.605 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.605 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.605 * [taylor]: Taking taylor expansion of -1 in x
0.605 * [taylor]: Taking taylor expansion of x in x
0.606 * [taylor]: Taking taylor expansion of (exp (- (/ -1 x))) in x
0.606 * [taylor]: Taking taylor expansion of (- (/ -1 x)) in x
0.606 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.606 * [taylor]: Taking taylor expansion of -1 in x
0.606 * [taylor]: Taking taylor expansion of x in x
0.606 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) (exp (- (/ -1 x)))) in x
0.606 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.606 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.606 * [taylor]: Taking taylor expansion of -1 in x
0.606 * [taylor]: Taking taylor expansion of x in x
0.607 * [taylor]: Taking taylor expansion of (exp (- (/ -1 x))) in x
0.607 * [taylor]: Taking taylor expansion of (- (/ -1 x)) in x
0.607 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.607 * [taylor]: Taking taylor expansion of -1 in x
0.607 * [taylor]: Taking taylor expansion of x in x
0.615 * * * [progress]: simplifying candidates
0.615 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (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)))
0.618 * * [simplify]: iteration  0 :  91  enodes  (cost  48 )
0.620 * * [simplify]: iteration  1 :  195  enodes  (cost  45 )
0.624 * * [simplify]: iteration  2 :  599  enodes  (cost  45 )
0.636 * * [simplify]: iteration  3 :  2891  enodes  (cost  45 )
0.689 * * [simplify]: iteration  4 :  5002  enodes  (cost  45 )
0.690 * [simplify]: Simplified to:
   (- (exp x) (exp (* -1 x)))
  (+ (exp (* -1 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))
  (pow (tanh x) 3)
  (sqrt (tanh x))
  (sqrt (tanh x))
  (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))
  (tanh x)
  (tanh x)
0.690 * * * [progress]: adding candidates to table
0.711 * * [progress]: iteration 3 / 4
0.711 * * * [progress]: picking best candidate
0.712 * * * * [pick]: Picked  #<alt (λ (x) (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))>
0.712 * * * [progress]: localizing error
0.721 * * * [progress]: generating rewritten candidates
0.721 * * * * [progress]: [ 1 / 3 ] rewriting at (2 2)
0.727 * * * * [progress]: [ 2 / 3 ] rewriting at (2 1 2)
0.733 * * * * [progress]: [ 3 / 3 ] rewriting at (2)
0.747 * * * [progress]: generating series expansions
0.747 * * * * [progress]: [ 1 / 3 ] generating series at (2 2)
0.747 * [approximate]: Taking taylor expansion of (* 1/3 (pow x 3)) in (x) around 0
0.747 * [taylor]: Taking taylor expansion of (* 1/3 (pow x 3)) in x
0.747 * [taylor]: Taking taylor expansion of 1/3 in x
0.747 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.747 * [taylor]: Taking taylor expansion of x in x
0.747 * [taylor]: Taking taylor expansion of (* 1/3 (pow x 3)) in x
0.747 * [taylor]: Taking taylor expansion of 1/3 in x
0.747 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.747 * [taylor]: Taking taylor expansion of x in x
0.758 * [approximate]: Taking taylor expansion of (/ 1/3 (pow x 3)) in (x) around 0
0.758 * [taylor]: Taking taylor expansion of (/ 1/3 (pow x 3)) in x
0.759 * [taylor]: Taking taylor expansion of 1/3 in x
0.759 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.759 * [taylor]: Taking taylor expansion of x in x
0.759 * [taylor]: Taking taylor expansion of (/ 1/3 (pow x 3)) in x
0.759 * [taylor]: Taking taylor expansion of 1/3 in x
0.759 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.759 * [taylor]: Taking taylor expansion of x in x
0.770 * [approximate]: Taking taylor expansion of (/ -1/3 (pow x 3)) in (x) around 0
0.770 * [taylor]: Taking taylor expansion of (/ -1/3 (pow x 3)) in x
0.770 * [taylor]: Taking taylor expansion of -1/3 in x
0.770 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.770 * [taylor]: Taking taylor expansion of x in x
0.771 * [taylor]: Taking taylor expansion of (/ -1/3 (pow x 3)) in x
0.771 * [taylor]: Taking taylor expansion of -1/3 in x
0.771 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.771 * [taylor]: Taking taylor expansion of x in x
0.784 * * * * [progress]: [ 2 / 3 ] generating series at (2 1 2)
0.785 * [approximate]: Taking taylor expansion of (* 2/15 (pow x 5)) in (x) around 0
0.785 * [taylor]: Taking taylor expansion of (* 2/15 (pow x 5)) in x
0.785 * [taylor]: Taking taylor expansion of 2/15 in x
0.785 * [taylor]: Taking taylor expansion of (pow x 5) in x
0.785 * [taylor]: Taking taylor expansion of x in x
0.785 * [taylor]: Taking taylor expansion of (* 2/15 (pow x 5)) in x
0.785 * [taylor]: Taking taylor expansion of 2/15 in x
0.785 * [taylor]: Taking taylor expansion of (pow x 5) in x
0.785 * [taylor]: Taking taylor expansion of x in x
0.800 * [approximate]: Taking taylor expansion of (/ 2/15 (pow x 5)) in (x) around 0
0.800 * [taylor]: Taking taylor expansion of (/ 2/15 (pow x 5)) in x
0.800 * [taylor]: Taking taylor expansion of 2/15 in x
0.800 * [taylor]: Taking taylor expansion of (pow x 5) in x
0.800 * [taylor]: Taking taylor expansion of x in x
0.801 * [taylor]: Taking taylor expansion of (/ 2/15 (pow x 5)) in x
0.801 * [taylor]: Taking taylor expansion of 2/15 in x
0.801 * [taylor]: Taking taylor expansion of (pow x 5) in x
0.801 * [taylor]: Taking taylor expansion of x in x
0.815 * [approximate]: Taking taylor expansion of (/ -2/15 (pow x 5)) in (x) around 0
0.815 * [taylor]: Taking taylor expansion of (/ -2/15 (pow x 5)) in x
0.815 * [taylor]: Taking taylor expansion of -2/15 in x
0.815 * [taylor]: Taking taylor expansion of (pow x 5) in x
0.816 * [taylor]: Taking taylor expansion of x in x
0.816 * [taylor]: Taking taylor expansion of (/ -2/15 (pow x 5)) in x
0.816 * [taylor]: Taking taylor expansion of -2/15 in x
0.817 * [taylor]: Taking taylor expansion of (pow x 5) in x
0.817 * [taylor]: Taking taylor expansion of x in x
0.831 * * * * [progress]: [ 3 / 3 ] generating series at (2)
0.831 * [approximate]: Taking taylor expansion of (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))) in (x) around 0
0.831 * [taylor]: Taking taylor expansion of (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))) in x
0.831 * [taylor]: Taking taylor expansion of (+ x (* 2/15 (pow x 5))) in x
0.831 * [taylor]: Taking taylor expansion of x in x
0.831 * [taylor]: Taking taylor expansion of (* 2/15 (pow x 5)) in x
0.831 * [taylor]: Taking taylor expansion of 2/15 in x
0.831 * [taylor]: Taking taylor expansion of (pow x 5) in x
0.831 * [taylor]: Taking taylor expansion of x in x
0.831 * [taylor]: Taking taylor expansion of (* 1/3 (pow x 3)) in x
0.831 * [taylor]: Taking taylor expansion of 1/3 in x
0.831 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.831 * [taylor]: Taking taylor expansion of x in x
0.831 * [taylor]: Taking taylor expansion of (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))) in x
0.831 * [taylor]: Taking taylor expansion of (+ x (* 2/15 (pow x 5))) in x
0.831 * [taylor]: Taking taylor expansion of x in x
0.831 * [taylor]: Taking taylor expansion of (* 2/15 (pow x 5)) in x
0.831 * [taylor]: Taking taylor expansion of 2/15 in x
0.831 * [taylor]: Taking taylor expansion of (pow x 5) in x
0.831 * [taylor]: Taking taylor expansion of x in x
0.831 * [taylor]: Taking taylor expansion of (* 1/3 (pow x 3)) in x
0.831 * [taylor]: Taking taylor expansion of 1/3 in x
0.831 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.831 * [taylor]: Taking taylor expansion of x in x
0.840 * [approximate]: Taking taylor expansion of (- (+ (* 2/15 (/ 1 (pow x 5))) (/ 1 x)) (* 1/3 (/ 1 (pow x 3)))) in (x) around 0
0.840 * [taylor]: Taking taylor expansion of (- (+ (* 2/15 (/ 1 (pow x 5))) (/ 1 x)) (* 1/3 (/ 1 (pow x 3)))) in x
0.840 * [taylor]: Taking taylor expansion of (+ (* 2/15 (/ 1 (pow x 5))) (/ 1 x)) in x
0.840 * [taylor]: Taking taylor expansion of (* 2/15 (/ 1 (pow x 5))) in x
0.840 * [taylor]: Taking taylor expansion of 2/15 in x
0.840 * [taylor]: Taking taylor expansion of (/ 1 (pow x 5)) in x
0.840 * [taylor]: Taking taylor expansion of (pow x 5) in x
0.840 * [taylor]: Taking taylor expansion of x in x
0.841 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.841 * [taylor]: Taking taylor expansion of x in x
0.841 * [taylor]: Taking taylor expansion of (* 1/3 (/ 1 (pow x 3))) in x
0.841 * [taylor]: Taking taylor expansion of 1/3 in x
0.841 * [taylor]: Taking taylor expansion of (/ 1 (pow x 3)) in x
0.841 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.841 * [taylor]: Taking taylor expansion of x in x
0.842 * [taylor]: Taking taylor expansion of (- (+ (* 2/15 (/ 1 (pow x 5))) (/ 1 x)) (* 1/3 (/ 1 (pow x 3)))) in x
0.842 * [taylor]: Taking taylor expansion of (+ (* 2/15 (/ 1 (pow x 5))) (/ 1 x)) in x
0.842 * [taylor]: Taking taylor expansion of (* 2/15 (/ 1 (pow x 5))) in x
0.842 * [taylor]: Taking taylor expansion of 2/15 in x
0.842 * [taylor]: Taking taylor expansion of (/ 1 (pow x 5)) in x
0.842 * [taylor]: Taking taylor expansion of (pow x 5) in x
0.842 * [taylor]: Taking taylor expansion of x in x
0.843 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.843 * [taylor]: Taking taylor expansion of x in x
0.843 * [taylor]: Taking taylor expansion of (* 1/3 (/ 1 (pow x 3))) in x
0.843 * [taylor]: Taking taylor expansion of 1/3 in x
0.843 * [taylor]: Taking taylor expansion of (/ 1 (pow x 3)) in x
0.843 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.843 * [taylor]: Taking taylor expansion of x in x
0.864 * [approximate]: Taking taylor expansion of (- (* 1/3 (/ 1 (pow x 3))) (+ (* 2/15 (/ 1 (pow x 5))) (/ 1 x))) in (x) around 0
0.864 * [taylor]: Taking taylor expansion of (- (* 1/3 (/ 1 (pow x 3))) (+ (* 2/15 (/ 1 (pow x 5))) (/ 1 x))) in x
0.864 * [taylor]: Taking taylor expansion of (* 1/3 (/ 1 (pow x 3))) in x
0.864 * [taylor]: Taking taylor expansion of 1/3 in x
0.864 * [taylor]: Taking taylor expansion of (/ 1 (pow x 3)) in x
0.864 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.864 * [taylor]: Taking taylor expansion of x in x
0.865 * [taylor]: Taking taylor expansion of (+ (* 2/15 (/ 1 (pow x 5))) (/ 1 x)) in x
0.865 * [taylor]: Taking taylor expansion of (* 2/15 (/ 1 (pow x 5))) in x
0.865 * [taylor]: Taking taylor expansion of 2/15 in x
0.865 * [taylor]: Taking taylor expansion of (/ 1 (pow x 5)) in x
0.865 * [taylor]: Taking taylor expansion of (pow x 5) in x
0.865 * [taylor]: Taking taylor expansion of x in x
0.866 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.866 * [taylor]: Taking taylor expansion of x in x
0.866 * [taylor]: Taking taylor expansion of (- (* 1/3 (/ 1 (pow x 3))) (+ (* 2/15 (/ 1 (pow x 5))) (/ 1 x))) in x
0.866 * [taylor]: Taking taylor expansion of (* 1/3 (/ 1 (pow x 3))) in x
0.866 * [taylor]: Taking taylor expansion of 1/3 in x
0.866 * [taylor]: Taking taylor expansion of (/ 1 (pow x 3)) in x
0.866 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.866 * [taylor]: Taking taylor expansion of x in x
0.867 * [taylor]: Taking taylor expansion of (+ (* 2/15 (/ 1 (pow x 5))) (/ 1 x)) in x
0.867 * [taylor]: Taking taylor expansion of (* 2/15 (/ 1 (pow x 5))) in x
0.867 * [taylor]: Taking taylor expansion of 2/15 in x
0.867 * [taylor]: Taking taylor expansion of (/ 1 (pow x 5)) in x
0.867 * [taylor]: Taking taylor expansion of (pow x 5) in x
0.867 * [taylor]: Taking taylor expansion of x in x
0.868 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.868 * [taylor]: Taking taylor expansion of x in x
0.886 * * * [progress]: simplifying candidates
0.887 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (log 1/3) (* (log x) 3))
  (+ (log 1/3) (* (log x) 3))
  (+ (log 1/3) (log (pow x 3)))
  (log (* 1/3 (pow x 3)))
  (exp (* 1/3 (pow x 3)))
  (* (* (* 1/3 1/3) 1/3) (* (* (pow x 3) (pow x 3)) (pow x 3)))
  (* (cbrt (* 1/3 (pow x 3))) (cbrt (* 1/3 (pow x 3))))
  (cbrt (* 1/3 (pow x 3)))
  (* (* (* 1/3 (pow x 3)) (* 1/3 (pow x 3))) (* 1/3 (pow x 3)))
  (sqrt (* 1/3 (pow x 3)))
  (sqrt (* 1/3 (pow x 3)))
  (* (sqrt 1/3) (pow (sqrt x) 3))
  (* (sqrt 1/3) (pow (sqrt x) 3))
  (* (sqrt 1/3) (pow (sqrt x) 3))
  (* (sqrt 1/3) (pow (sqrt x) 3))
  (* (sqrt 1/3) (sqrt (pow x 3)))
  (* (sqrt 1/3) (sqrt (pow x 3)))
  (* (sqrt 1/3) (pow x (/ 3 2)))
  (* (sqrt 1/3) (pow x (/ 3 2)))
  (* 1/3 (pow (* (cbrt x) (cbrt x)) 3))
  (* 1/3 (pow (sqrt x) 3))
  (* 1/3 (pow 1 3))
  (* 1/3 (* x x))
  (* 1/3 (* (cbrt (pow x 3)) (cbrt (pow x 3))))
  (* 1/3 (pow (* (cbrt x) (cbrt x)) 3))
  (* 1/3 (pow (sqrt x) 3))
  (* 1/3 (pow 1 3))
  (* 1/3 x)
  (* 1/3 (sqrt (pow x 3)))
  (* 1/3 1)
  (* 1/3 (pow x (/ 3 2)))
  (* (cbrt 1/3) (pow x 3))
  (* (sqrt 1/3) (pow x 3))
  (* 1/3 (pow x 3))
  (+ (log 2/15) (* (log x) 5))
  (+ (log 2/15) (* (log x) 5))
  (+ (log 2/15) (log (pow x 5)))
  (log (* 2/15 (pow x 5)))
  (exp (* 2/15 (pow x 5)))
  (* (* (* 2/15 2/15) 2/15) (* (* (pow x 5) (pow x 5)) (pow x 5)))
  (* (cbrt (* 2/15 (pow x 5))) (cbrt (* 2/15 (pow x 5))))
  (cbrt (* 2/15 (pow x 5)))
  (* (* (* 2/15 (pow x 5)) (* 2/15 (pow x 5))) (* 2/15 (pow x 5)))
  (sqrt (* 2/15 (pow x 5)))
  (sqrt (* 2/15 (pow x 5)))
  (* (sqrt 2/15) (pow (sqrt x) 5))
  (* (sqrt 2/15) (pow (sqrt x) 5))
  (* (sqrt 2/15) (sqrt (pow x 5)))
  (* (sqrt 2/15) (sqrt (pow x 5)))
  (* (sqrt 2/15) (pow x (/ 5 2)))
  (* (sqrt 2/15) (pow x (/ 5 2)))
  (* 2/15 (pow (* (cbrt x) (cbrt x)) 5))
  (* 2/15 (pow (sqrt x) 5))
  (* 2/15 (pow 1 5))
  (* 2/15 (* (cbrt (pow x 5)) (cbrt (pow x 5))))
  (* 2/15 (sqrt (pow x 5)))
  (* 2/15 1)
  (* 2/15 (pow x (/ 5 2)))
  (* (cbrt 2/15) (pow x 5))
  (* (sqrt 2/15) (pow x 5))
  (* 2/15 (pow x 5))
  (/ (* (exp x) (exp (* 2/15 (pow x 5)))) (exp (* 1/3 (pow x 3))))
  (/ (exp (+ x (* 2/15 (pow x 5)))) (exp (* 1/3 (pow x 3))))
  (log (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))
  (exp (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))
  (* (cbrt (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))) (cbrt (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))))
  (cbrt (- (+ 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))) (* 1/3 (pow x 3))))
  (sqrt (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))
  (sqrt (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))
  (- (pow (+ x (* 2/15 (pow x 5))) 3) (pow (* 1/3 (pow x 3)) 3))
  (+ (* (+ x (* 2/15 (pow x 5))) (+ x (* 2/15 (pow x 5)))) (+ (* (* 1/3 (pow x 3)) (* 1/3 (pow x 3))) (* (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))))
  (- (* 1/3 (pow x 3)))
  (- (* (+ x (* 2/15 (pow x 5))) (+ x (* 2/15 (pow x 5)))) (* (* 1/3 (pow x 3)) (* 1/3 (pow x 3))))
  (+ (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))
  (- (* 2/15 (pow x 5)) (* 1/3 (pow x 3)))
  (- (* 1/3 (pow x 3)))
  (* 1/3 (pow x 3))
  (* 1/3 (pow x 3))
  (* 1/3 (pow x 3))
  (* 2/15 (pow x 5))
  (* 2/15 (pow x 5))
  (* 2/15 (pow x 5))
  (- (+ 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)))
0.892 * * [simplify]: iteration  0 :  276  enodes  (cost  362 )
0.898 * * [simplify]: iteration  1 :  1208  enodes  (cost  335 )
0.928 * * [simplify]: iteration  2 :  5001  enodes  (cost  331 )
0.931 * [simplify]: Simplified to:
   (log (* 1/3 (pow x 3)))
  (log (* 1/3 (pow x 3)))
  (log (* 1/3 (pow x 3)))
  (log (* 1/3 (pow x 3)))
  (exp (* 1/3 (pow x 3)))
  (pow (* 1/3 (pow x 3)) 3)
  (* (cbrt (* 1/3 (pow x 3))) (cbrt (* 1/3 (pow x 3))))
  (cbrt (* 1/3 (pow x 3)))
  (pow (* 1/3 (pow x 3)) 3)
  (sqrt (* 1/3 (pow x 3)))
  (sqrt (* 1/3 (pow x 3)))
  (* (sqrt 1/3) (pow (sqrt x) 3))
  (* (sqrt 1/3) (pow (sqrt x) 3))
  (* (sqrt 1/3) (pow (sqrt x) 3))
  (* (sqrt 1/3) (pow (sqrt x) 3))
  (* (sqrt 1/3) (sqrt (pow x 3)))
  (* (sqrt 1/3) (sqrt (pow x 3)))
  (* (sqrt 1/3) (pow x 3/2))
  (* (sqrt 1/3) (pow x 3/2))
  (* (* 1/3 x) x)
  (* 1/3 (pow (sqrt x) 3))
  1/3
  (* (* 1/3 x) x)
  (* (* 1/3 x) x)
  (* (* 1/3 x) x)
  (* 1/3 (pow (sqrt x) 3))
  1/3
  (* 1/3 x)
  (* 1/3 (sqrt (pow x 3)))
  1/3
  (* 1/3 (pow x 3/2))
  (* (cbrt 1/3) (pow x 3))
  (* (sqrt 1/3) (pow x 3))
  (* 1/3 (pow x 3))
  (log (* 2/15 (pow x 5)))
  (log (* 2/15 (pow x 5)))
  (log (* 2/15 (pow x 5)))
  (log (* 2/15 (pow x 5)))
  (exp (* 2/15 (pow x 5)))
  (pow (* 2/15 (pow x 5)) 3)
  (* (cbrt (* 2/15 (pow x 5))) (cbrt (* 2/15 (pow x 5))))
  (cbrt (* 2/15 (pow x 5)))
  (pow (* 2/15 (pow x 5)) 3)
  (sqrt (* 2/15 (pow x 5)))
  (sqrt (* 2/15 (pow x 5)))
  (* (sqrt 2/15) (pow (sqrt x) 5))
  (* (sqrt 2/15) (pow (sqrt x) 5))
  (* (sqrt 2/15) (sqrt (pow x 5)))
  (* (sqrt 2/15) (sqrt (pow x 5)))
  (* (sqrt 2/15) (pow x 5/2))
  (* (sqrt 2/15) (pow x 5/2))
  (* 2/15 (pow (* (cbrt x) (cbrt x)) 5))
  (* 2/15 (pow (sqrt x) 5))
  2/15
  (* 2/15 (* (cbrt (pow x 5)) (cbrt (pow x 5))))
  (* 2/15 (sqrt (pow x 5)))
  2/15
  (* 2/15 (pow x 5/2))
  (* (cbrt 2/15) (pow x 5))
  (* (sqrt 2/15) (pow x 5))
  (* 2/15 (pow x 5))
  (exp (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))
  (exp (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))
  (log (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))
  (exp (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))
  (* (cbrt (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))) (cbrt (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))))
  (cbrt (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))
  (pow (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))) 3)
  (sqrt (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))
  (sqrt (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))
  (- (pow (+ x (* 2/15 (pow x 5))) 3) (pow (* 1/3 (pow x 3)) 3))
  (+ (* (+ x (* 2/15 (pow x 5))) (+ (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))) (* (pow x 6) 1/9))
  (- (* 1/3 (pow x 3)))
  (+ (* (- 1/9) (pow x 6)) (* (+ x (* 2/15 (pow x 5))) (+ x (* 2/15 (pow x 5)))))
  (+ (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3)))
  (- (* 2/15 (pow x 5)) (* 1/3 (pow x 3)))
  (- (* 1/3 (pow x 3)))
  (* 1/3 (pow x 3))
  (* 1/3 (pow x 3))
  (* 1/3 (pow x 3))
  (* 2/15 (pow x 5))
  (* 2/15 (pow x 5))
  (* 2/15 (pow x 5))
  (- (+ 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)))
0.931 * * * [progress]: adding candidates to table
1.077 * [progress]: [Phase 3 of 3] Extracting.
1.077 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))> #<alt (λ (x) (tanh x))>)
1.077 * * * [regime-changes]: Trying 1 branch expressions: (x)
1.077 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (- (+ x (* 2/15 (pow x 5))) (* 1/3 (pow x 3))))> #<alt (λ (x) (tanh x))>)
1.088 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
1.088 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (tanh x)
1.088 * * [simplify]: iteration  0 :  2  enodes  (cost  1 )
1.088 * [simplify]: Simplified to:
   (tanh x)
4.352 * [regime-testing]: Baseline error score: 0.013126640830103764
4.352 * [regime-testing]: Oracle error score: 0.004375546943367921
4.353 * [regime-testing]: End program error score: 0.013126640830103764