8.799 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.074 * * * [progress]: [2/2] Setting up program.
0.077 * [progress]: [Phase 2 of 3] Improving.
0.077 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (- (exp x) (exp (- x))) 2.0)
0.079 * * [simplify]: iteration  0 :  14  enodes  (cost  5 )
0.081 * * [simplify]: iteration  1 :  23  enodes  (cost  5 )
0.082 * * [simplify]: iteration  2 :  31  enodes  (cost  5 )
0.083 * * [simplify]: iteration  3 :  36  enodes  (cost  5 )
0.085 * * [simplify]: iteration  4 :  41  enodes  (cost  5 )
0.086 * * [simplify]: iteration  5 :  65  enodes  (cost  5 )
0.088 * * [simplify]: iteration  6 :  103  enodes  (cost  5 )
0.090 * * [simplify]: iteration  7 :  250  enodes  (cost  5 )
0.099 * * [simplify]: iteration  8 :  1252  enodes  (cost  5 )
0.295 * * [simplify]: iteration  9 :  5001  enodes  (cost  5 )
0.296 * [simplify]: Simplified to:
   (/ (- (exp x) (exp (- x))) 2.0)
0.296 * * [progress]: iteration 1 / 4
0.296 * * * [progress]: picking best candidate
0.298 * * * * [pick]: Picked  #<alt (λ (x) (/ (- (exp x) (exp (- x))) 2.0))>
0.298 * * * [progress]: localizing error
0.304 * * * [progress]: generating rewritten candidates
0.304 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.309 * * * [progress]: generating series expansions
0.309 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.309 * [approximate]: Taking taylor expansion of (- (exp x) (exp (- x))) in (x) around 0
0.309 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
0.309 * [taylor]: Taking taylor expansion of (exp x) in x
0.309 * [taylor]: Taking taylor expansion of x in x
0.309 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.309 * [taylor]: Taking taylor expansion of (- x) in x
0.309 * [taylor]: Taking taylor expansion of x in x
0.310 * [taylor]: Taking taylor expansion of (- (exp x) (exp (- x))) in x
0.310 * [taylor]: Taking taylor expansion of (exp x) in x
0.310 * [taylor]: Taking taylor expansion of x in x
0.310 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.310 * [taylor]: Taking taylor expansion of (- x) in x
0.310 * [taylor]: Taking taylor expansion of x in x
0.334 * [approximate]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in (x) around 0
0.334 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.334 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.334 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.334 * [taylor]: Taking taylor expansion of x in x
0.335 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.335 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.335 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.335 * [taylor]: Taking taylor expansion of x in x
0.335 * [taylor]: Taking taylor expansion of (- (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.335 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.335 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.335 * [taylor]: Taking taylor expansion of x in x
0.335 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.335 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.336 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.336 * [taylor]: Taking taylor expansion of x in x
0.339 * [approximate]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in (x) around 0
0.339 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
0.339 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.339 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.339 * [taylor]: Taking taylor expansion of -1 in x
0.339 * [taylor]: Taking taylor expansion of x in x
0.339 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.339 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.339 * [taylor]: Taking taylor expansion of x in x
0.340 * [taylor]: Taking taylor expansion of (- (exp (/ -1 x)) (exp (/ 1 x))) in x
0.340 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.340 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.340 * [taylor]: Taking taylor expansion of -1 in x
0.340 * [taylor]: Taking taylor expansion of x in x
0.340 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.340 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.340 * [taylor]: Taking taylor expansion of x in x
0.343 * * * [progress]: simplifying candidates
0.344 * [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)))
  (+ (* 1/3 (pow x 3)) (+ (* 1/60 (pow x 5)) (* 2 x)))
  (- (exp x) (exp (- x)))
  (- (exp x) (exp (* -1 x)))
0.347 * * [simplify]: iteration  0 :  100  enodes  (cost  120 )
0.349 * * [simplify]: iteration  1 :  257  enodes  (cost  108 )
0.353 * * [simplify]: iteration  2 :  763  enodes  (cost  107 )
0.372 * * [simplify]: iteration  3 :  4896  enodes  (cost  105 )
0.918 * * [simplify]: iteration  4 :  5001  enodes  (cost  105 )
0.924 * [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 (* -1 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 x) -2))
  (- (exp (* -1 x)))
  (* (exp x) (- (exp x) (pow (exp x) -3)))
  (+ (exp x) (exp (- x)))
  (+ (sqrt (exp x)) (sqrt (exp (- x))))
  (- (sqrt (exp x)) (sqrt (exp (- x))))
  (- (exp x) (exp (* -1 x)))
  (- (exp (* -1 x)))
  (+ (* 1/3 (pow x 3)) (+ (* 1/60 (pow x 5)) (* 2 x)))
  (- (exp x) (exp (* -1 x)))
  (- (exp x) (exp (* -1 x)))
0.924 * * * [progress]: adding candidates to table
0.971 * * [progress]: iteration 2 / 4
0.971 * * * [progress]: picking best candidate
0.973 * * * * [pick]: Picked  #<alt (λ (x) (/ (+ (* 1/3 (pow x 3)) (+ (* 1/60 (pow x 5)) (* 2 x))) 2.0))>
0.973 * * * [progress]: localizing error
0.984 * * * [progress]: generating rewritten candidates
0.984 * * * * [progress]: [ 1 / 2 ] rewriting at (2 1 1)
0.991 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1 2 1)
1.000 * * * [progress]: generating series expansions
1.000 * * * * [progress]: [ 1 / 2 ] generating series at (2 1 1)
1.000 * [approximate]: Taking taylor expansion of (* 1/3 (pow x 3)) in (x) around 0
1.000 * [taylor]: Taking taylor expansion of (* 1/3 (pow x 3)) in x
1.000 * [taylor]: Taking taylor expansion of 1/3 in x
1.001 * [taylor]: Taking taylor expansion of (pow x 3) in x
1.001 * [taylor]: Taking taylor expansion of x in x
1.001 * [taylor]: Taking taylor expansion of (* 1/3 (pow x 3)) in x
1.001 * [taylor]: Taking taylor expansion of 1/3 in x
1.001 * [taylor]: Taking taylor expansion of (pow x 3) in x
1.001 * [taylor]: Taking taylor expansion of x in x
1.012 * [approximate]: Taking taylor expansion of (/ 1/3 (pow x 3)) in (x) around 0
1.012 * [taylor]: Taking taylor expansion of (/ 1/3 (pow x 3)) in x
1.012 * [taylor]: Taking taylor expansion of 1/3 in x
1.012 * [taylor]: Taking taylor expansion of (pow x 3) in x
1.012 * [taylor]: Taking taylor expansion of x in x
1.013 * [taylor]: Taking taylor expansion of (/ 1/3 (pow x 3)) in x
1.013 * [taylor]: Taking taylor expansion of 1/3 in x
1.013 * [taylor]: Taking taylor expansion of (pow x 3) in x
1.013 * [taylor]: Taking taylor expansion of x in x
1.024 * [approximate]: Taking taylor expansion of (/ -1/3 (pow x 3)) in (x) around 0
1.024 * [taylor]: Taking taylor expansion of (/ -1/3 (pow x 3)) in x
1.024 * [taylor]: Taking taylor expansion of -1/3 in x
1.024 * [taylor]: Taking taylor expansion of (pow x 3) in x
1.024 * [taylor]: Taking taylor expansion of x in x
1.025 * [taylor]: Taking taylor expansion of (/ -1/3 (pow x 3)) in x
1.025 * [taylor]: Taking taylor expansion of -1/3 in x
1.025 * [taylor]: Taking taylor expansion of (pow x 3) in x
1.025 * [taylor]: Taking taylor expansion of x in x
1.036 * * * * [progress]: [ 2 / 2 ] generating series at (2 1 2 1)
1.036 * [approximate]: Taking taylor expansion of (* 1/60 (pow x 5)) in (x) around 0
1.036 * [taylor]: Taking taylor expansion of (* 1/60 (pow x 5)) in x
1.036 * [taylor]: Taking taylor expansion of 1/60 in x
1.036 * [taylor]: Taking taylor expansion of (pow x 5) in x
1.036 * [taylor]: Taking taylor expansion of x in x
1.036 * [taylor]: Taking taylor expansion of (* 1/60 (pow x 5)) in x
1.036 * [taylor]: Taking taylor expansion of 1/60 in x
1.036 * [taylor]: Taking taylor expansion of (pow x 5) in x
1.036 * [taylor]: Taking taylor expansion of x in x
1.051 * [approximate]: Taking taylor expansion of (/ 1/60 (pow x 5)) in (x) around 0
1.051 * [taylor]: Taking taylor expansion of (/ 1/60 (pow x 5)) in x
1.051 * [taylor]: Taking taylor expansion of 1/60 in x
1.051 * [taylor]: Taking taylor expansion of (pow x 5) in x
1.051 * [taylor]: Taking taylor expansion of x in x
1.052 * [taylor]: Taking taylor expansion of (/ 1/60 (pow x 5)) in x
1.052 * [taylor]: Taking taylor expansion of 1/60 in x
1.052 * [taylor]: Taking taylor expansion of (pow x 5) in x
1.052 * [taylor]: Taking taylor expansion of x in x
1.066 * [approximate]: Taking taylor expansion of (/ -1/60 (pow x 5)) in (x) around 0
1.066 * [taylor]: Taking taylor expansion of (/ -1/60 (pow x 5)) in x
1.066 * [taylor]: Taking taylor expansion of -1/60 in x
1.066 * [taylor]: Taking taylor expansion of (pow x 5) in x
1.066 * [taylor]: Taking taylor expansion of x in x
1.067 * [taylor]: Taking taylor expansion of (/ -1/60 (pow x 5)) in x
1.067 * [taylor]: Taking taylor expansion of -1/60 in x
1.067 * [taylor]: Taking taylor expansion of (pow x 5) in x
1.068 * [taylor]: Taking taylor expansion of x in x
1.086 * * * [progress]: simplifying candidates
1.087 * [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 1/60) (* (log x) 5))
  (+ (log 1/60) (* (log x) 5))
  (+ (log 1/60) (log (pow x 5)))
  (log (* 1/60 (pow x 5)))
  (exp (* 1/60 (pow x 5)))
  (* (* (* 1/60 1/60) 1/60) (* (* (pow x 5) (pow x 5)) (pow x 5)))
  (* (cbrt (* 1/60 (pow x 5))) (cbrt (* 1/60 (pow x 5))))
  (cbrt (* 1/60 (pow x 5)))
  (* (* (* 1/60 (pow x 5)) (* 1/60 (pow x 5))) (* 1/60 (pow x 5)))
  (sqrt (* 1/60 (pow x 5)))
  (sqrt (* 1/60 (pow x 5)))
  (* (sqrt 1/60) (pow (sqrt x) 5))
  (* (sqrt 1/60) (pow (sqrt x) 5))
  (* (sqrt 1/60) (sqrt (pow x 5)))
  (* (sqrt 1/60) (sqrt (pow x 5)))
  (* (sqrt 1/60) (pow x (/ 5 2)))
  (* (sqrt 1/60) (pow x (/ 5 2)))
  (* 1/60 (pow (* (cbrt x) (cbrt x)) 5))
  (* 1/60 (pow (sqrt x) 5))
  (* 1/60 (pow 1 5))
  (* 1/60 (* (cbrt (pow x 5)) (cbrt (pow x 5))))
  (* 1/60 (sqrt (pow x 5)))
  (* 1/60 1)
  (* 1/60 (pow x (/ 5 2)))
  (* (cbrt 1/60) (pow x 5))
  (* (sqrt 1/60) (pow x 5))
  (* 1/60 (pow x 5))
  (* 1/3 (pow x 3))
  (* 1/3 (pow x 3))
  (* 1/3 (pow x 3))
  (* 1/60 (pow x 5))
  (* 1/60 (pow x 5))
  (* 1/60 (pow x 5))
1.091 * * [simplify]: iteration  0 :  208  enodes  (cost  209 )
1.096 * * [simplify]: iteration  1 :  871  enodes  (cost  193 )
1.116 * * [simplify]: iteration  2 :  4636  enodes  (cost  193 )
1.283 * * [simplify]: iteration  3 :  5001  enodes  (cost  193 )
1.285 * [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 (* 1/60 (pow x 5)))
  (log (* 1/60 (pow x 5)))
  (log (* 1/60 (pow x 5)))
  (log (* 1/60 (pow x 5)))
  (exp (* 1/60 (pow x 5)))
  (pow (* 1/60 (pow x 5)) 3)
  (* (cbrt (* 1/60 (pow x 5))) (cbrt (* 1/60 (pow x 5))))
  (cbrt (* 1/60 (pow x 5)))
  (pow (* 1/60 (pow x 5)) 3)
  (sqrt (* 1/60 (pow x 5)))
  (sqrt (* 1/60 (pow x 5)))
  (* (sqrt 1/60) (pow (sqrt x) 5))
  (* (sqrt 1/60) (pow (sqrt x) 5))
  (* (sqrt 1/60) (sqrt (pow x 5)))
  (* (sqrt 1/60) (sqrt (pow x 5)))
  (* (sqrt 1/60) (pow x 5/2))
  (* (sqrt 1/60) (pow x 5/2))
  (* 1/60 (pow (* (cbrt x) (cbrt x)) 5))
  (* 1/60 (pow (sqrt x) 5))
  1/60
  (* 1/60 (* (cbrt (pow x 5)) (cbrt (pow x 5))))
  (* 1/60 (sqrt (pow x 5)))
  1/60
  (* 1/60 (pow x 5/2))
  (* (cbrt 1/60) (pow x 5))
  (* (sqrt 1/60) (pow x 5))
  (* 1/60 (pow x 5))
  (* 1/3 (pow x 3))
  (* 1/3 (pow x 3))
  (* 1/3 (pow x 3))
  (* 1/60 (pow x 5))
  (* 1/60 (pow x 5))
  (* 1/60 (pow x 5))
1.285 * * * [progress]: adding candidates to table
1.398 * [progress]: [Phase 3 of 3] Extracting.
1.402 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (+ (* 1/3 (pow x 3)) (+ (* 1/60 (pow x 5)) (* 2 x))) 2.0)
1.402 * * [simplify]: iteration  0 :  20  enodes  (cost  8 )
1.403 * * [simplify]: iteration  1 :  20  enodes  (cost  8 )
1.403 * [simplify]: Simplified to:
   (/ (+ (* 1/3 (pow x 3)) (+ (* 1/60 (pow x 5)) (* 2 x))) 2.0)
3.630 * [regime-testing]: End program error score: 0.5564086754698826