8.222 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.011 * * * [progress]: [2/2] Setting up program.
0.014 * [progress]: [Phase 2 of 3] Improving.
0.014 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ 2.0 (+ (exp x) (exp (neg x))))
0.074 * * [simplify]: iteration  0 :  4772  enodes  (cost  8 )
0.074 * * [simplify]: iteration  1 :  4772  enodes  (cost  8 )
0.074 * [simplify]: Simplified to:
   (/ 2.0 (+ (exp x) (exp (neg x))))
0.074 * * [progress]: iteration 1 / 4
0.075 * * * [progress]: picking best candidate
0.080 * * * * [pick]: Picked  #<alt (λ (x) (/ 2.0 (+ (exp x) (exp (neg x)))))>
0.080 * * * [progress]: localizing error
0.086 * * * [progress]: generating rewritten candidates
0.087 * * * * [progress]: [ 1 / 2 ] rewriting at (2 2)
0.091 * * * * [progress]: [ 2 / 2 ] rewriting at (2)
0.098 * * * [progress]: generating series expansions
0.098 * * * * [progress]: [ 1 / 2 ] generating series at (2 2)
0.098 * [approximate]: Taking taylor expansion of (+ (exp (neg x)) (exp x)) in (x) around 0
0.098 * [taylor]: Taking taylor expansion of (+ (exp (neg x)) (exp x)) in x
0.098 * [taylor]: Taking taylor expansion of (exp (neg x)) in x
0.098 * [taylor]: Taking taylor expansion of (neg x) in x
0.098 * [taylor]: Taking taylor expansion of x in x
0.098 * [taylor]: Taking taylor expansion of (exp x) in x
0.098 * [taylor]: Taking taylor expansion of x in x
0.098 * [taylor]: Taking taylor expansion of (+ (exp (neg x)) (exp x)) in x
0.098 * [taylor]: Taking taylor expansion of (exp (neg x)) in x
0.098 * [taylor]: Taking taylor expansion of (neg x) in x
0.098 * [taylor]: Taking taylor expansion of x in x
0.098 * [taylor]: Taking taylor expansion of (exp x) in x
0.098 * [taylor]: Taking taylor expansion of x in x
0.100 * [approximate]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (neg (/ 1 x)))) in (x) around 0
0.100 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (neg (/ 1 x)))) in x
0.100 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.100 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.100 * [taylor]: Taking taylor expansion of x in x
0.100 * [taylor]: Taking taylor expansion of (exp (neg (/ 1 x))) in x
0.100 * [taylor]: Taking taylor expansion of (neg (/ 1 x)) in x
0.100 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.100 * [taylor]: Taking taylor expansion of x in x
0.100 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (neg (/ 1 x)))) in x
0.100 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.100 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.100 * [taylor]: Taking taylor expansion of x in x
0.100 * [taylor]: Taking taylor expansion of (exp (neg (/ 1 x))) in x
0.100 * [taylor]: Taking taylor expansion of (neg (/ 1 x)) in x
0.101 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.101 * [taylor]: Taking taylor expansion of x in x
0.101 * [approximate]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in (x) around 0
0.101 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.101 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.101 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.101 * [taylor]: Taking taylor expansion of x in x
0.101 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.101 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.101 * [taylor]: Taking taylor expansion of -1 in x
0.101 * [taylor]: Taking taylor expansion of x in x
0.101 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.101 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.101 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.101 * [taylor]: Taking taylor expansion of x in x
0.101 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.101 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.101 * [taylor]: Taking taylor expansion of -1 in x
0.101 * [taylor]: Taking taylor expansion of x in x
0.102 * * * * [progress]: [ 2 / 2 ] generating series at (2)
0.102 * [approximate]: Taking taylor expansion of (/ 2.0 (+ (exp (neg x)) (exp x))) in (x) around 0
0.102 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (neg x)) (exp x))) in x
0.102 * [taylor]: Taking taylor expansion of 2.0 in x
0.102 * [taylor]: Taking taylor expansion of (+ (exp (neg x)) (exp x)) in x
0.102 * [taylor]: Taking taylor expansion of (exp (neg x)) in x
0.102 * [taylor]: Taking taylor expansion of (neg x) in x
0.102 * [taylor]: Taking taylor expansion of x in x
0.102 * [taylor]: Taking taylor expansion of (exp x) in x
0.102 * [taylor]: Taking taylor expansion of x in x
0.102 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (neg x)) (exp x))) in x
0.102 * [taylor]: Taking taylor expansion of 2.0 in x
0.102 * [taylor]: Taking taylor expansion of (+ (exp (neg x)) (exp x)) in x
0.102 * [taylor]: Taking taylor expansion of (exp (neg x)) in x
0.102 * [taylor]: Taking taylor expansion of (neg x) in x
0.102 * [taylor]: Taking taylor expansion of x in x
0.102 * [taylor]: Taking taylor expansion of (exp x) in x
0.102 * [taylor]: Taking taylor expansion of x in x
0.104 * [approximate]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (neg (/ 1 x))))) in (x) around 0
0.104 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (neg (/ 1 x))))) in x
0.104 * [taylor]: Taking taylor expansion of 2.0 in x
0.104 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (neg (/ 1 x)))) in x
0.104 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.104 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.104 * [taylor]: Taking taylor expansion of x in x
0.104 * [taylor]: Taking taylor expansion of (exp (neg (/ 1 x))) in x
0.104 * [taylor]: Taking taylor expansion of (neg (/ 1 x)) in x
0.104 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.104 * [taylor]: Taking taylor expansion of x in x
0.104 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (neg (/ 1 x))))) in x
0.104 * [taylor]: Taking taylor expansion of 2.0 in x
0.104 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (neg (/ 1 x)))) in x
0.104 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.104 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.104 * [taylor]: Taking taylor expansion of x in x
0.104 * [taylor]: Taking taylor expansion of (exp (neg (/ 1 x))) in x
0.104 * [taylor]: Taking taylor expansion of (neg (/ 1 x)) in x
0.104 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.104 * [taylor]: Taking taylor expansion of x in x
0.107 * [approximate]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (/ -1 x)))) in (x) around 0
0.107 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (/ -1 x)))) in x
0.107 * [taylor]: Taking taylor expansion of 2.0 in x
0.107 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.107 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.107 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.107 * [taylor]: Taking taylor expansion of x in x
0.107 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.107 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.107 * [taylor]: Taking taylor expansion of -1 in x
0.107 * [taylor]: Taking taylor expansion of x in x
0.107 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (/ -1 x)))) in x
0.107 * [taylor]: Taking taylor expansion of 2.0 in x
0.107 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.107 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.107 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.107 * [taylor]: Taking taylor expansion of x in x
0.107 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.107 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.107 * [taylor]: Taking taylor expansion of -1 in x
0.107 * [taylor]: Taking taylor expansion of x in x
0.110 * * * [progress]: simplifying candidates
0.110 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (cosh x)
  (* (exp (exp x)) (exp (exp (neg x))))
  (log (+ (exp x) (exp (neg x))))
  (exp (+ (exp x) (exp (neg x))))
  (* (cbrt (+ (exp x) (exp (neg x)))) (cbrt (+ (exp x) (exp (neg x)))))
  (cbrt (+ (exp x) (exp (neg x))))
  (* (* (+ (exp x) (exp (neg x))) (+ (exp x) (exp (neg x)))) (+ (exp x) (exp (neg x))))
  (sqrt (+ (exp x) (exp (neg x))))
  (sqrt (+ (exp x) (exp (neg x))))
  (+ (pow (exp x) 3) (pow (exp (neg x)) 3))
  (+ (* (exp x) (exp x)) (- (* (exp (neg x)) (exp (neg x))) (* (exp x) (exp (neg x)))))
  (- (* (exp x) (exp x)) (* (exp (neg x)) (exp (neg x))))
  (- (exp x) (exp (neg x)))
  (+ (exp x) (exp (neg x)))
  (- (log 2.0) (log (+ (exp x) (exp (neg x)))))
  (log (/ 2.0 (+ (exp x) (exp (neg x)))))
  (exp (/ 2.0 (+ (exp x) (exp (neg x)))))
  (/ (* (* 2.0 2.0) 2.0) (* (* (+ (exp x) (exp (neg x))) (+ (exp x) (exp (neg x)))) (+ (exp x) (exp (neg x)))))
  (* (cbrt (/ 2.0 (+ (exp x) (exp (neg x))))) (cbrt (/ 2.0 (+ (exp x) (exp (neg x))))))
  (cbrt (/ 2.0 (+ (exp x) (exp (neg x)))))
  (* (* (/ 2.0 (+ (exp x) (exp (neg x)))) (/ 2.0 (+ (exp x) (exp (neg x))))) (/ 2.0 (+ (exp x) (exp (neg x)))))
  (sqrt (/ 2.0 (+ (exp x) (exp (neg x)))))
  (sqrt (/ 2.0 (+ (exp x) (exp (neg x)))))
  (neg 2.0)
  (neg (+ (exp x) (exp (neg x))))
  (/ (* (cbrt 2.0) (cbrt 2.0)) 2)
  (/ (cbrt 2.0) (cosh x))
  (/ (* (cbrt 2.0) (cbrt 2.0)) (* (cbrt (+ (exp x) (exp (neg x)))) (cbrt (+ (exp x) (exp (neg x))))))
  (/ (cbrt 2.0) (cbrt (+ (exp x) (exp (neg x)))))
  (/ (* (cbrt 2.0) (cbrt 2.0)) (sqrt (+ (exp x) (exp (neg x)))))
  (/ (cbrt 2.0) (sqrt (+ (exp x) (exp (neg x)))))
  (/ (* (cbrt 2.0) (cbrt 2.0)) 1)
  (/ (cbrt 2.0) (+ (exp x) (exp (neg x))))
  (/ (* (cbrt 2.0) (cbrt 2.0)) 1)
  (/ (cbrt 2.0) (+ (exp x) (exp (neg x))))
  (/ (sqrt 2.0) 2)
  (/ (sqrt 2.0) (cosh x))
  (/ (sqrt 2.0) (* (cbrt (+ (exp x) (exp (neg x)))) (cbrt (+ (exp x) (exp (neg x))))))
  (/ (sqrt 2.0) (cbrt (+ (exp x) (exp (neg x)))))
  (/ (sqrt 2.0) (sqrt (+ (exp x) (exp (neg x)))))
  (/ (sqrt 2.0) (sqrt (+ (exp x) (exp (neg x)))))
  (/ (sqrt 2.0) 1)
  (/ (sqrt 2.0) (+ (exp x) (exp (neg x))))
  (/ (sqrt 2.0) 1)
  (/ (sqrt 2.0) (+ (exp x) (exp (neg x))))
  (/ 1 2)
  (/ 2.0 (cosh x))
  (/ 1 (* (cbrt (+ (exp x) (exp (neg x)))) (cbrt (+ (exp x) (exp (neg x))))))
  (/ 2.0 (cbrt (+ (exp x) (exp (neg x)))))
  (/ 1 (sqrt (+ (exp x) (exp (neg x)))))
  (/ 2.0 (sqrt (+ (exp x) (exp (neg x)))))
  (/ 1 1)
  (/ 2.0 (+ (exp x) (exp (neg x))))
  (/ 1 1)
  (/ 2.0 (+ (exp x) (exp (neg x))))
  (/ 1 (+ (exp x) (exp (neg x))))
  (/ (+ (exp x) (exp (neg x))) 2.0)
  (/ 2.0 2)
  (/ 2.0 (* (cbrt (+ (exp x) (exp (neg x)))) (cbrt (+ (exp x) (exp (neg x))))))
  (/ 2.0 (sqrt (+ (exp x) (exp (neg x)))))
  (/ 2.0 1)
  (/ 2.0 1)
  (/ (+ (exp x) (exp (neg x))) (cbrt 2.0))
  (/ (+ (exp x) (exp (neg x))) (sqrt 2.0))
  (/ (+ (exp x) (exp (neg x))) 2.0)
  (/ 2.0 (+ (pow (exp x) 3) (pow (exp (neg x)) 3)))
  (/ 2.0 (- (* (exp x) (exp x)) (* (exp (neg x)) (exp (neg x)))))
  (+ (pow x 2) (+ (* 1/12 (pow x 4)) 2))
  (+ (exp (neg x)) (exp x))
  (+ (exp (* -1 x)) (exp x))
  (- (+ (* 0.20833333333333334 (pow x 4)) 1.0) (* 0.5 (pow x 2)))
  (/ 2.0 (+ (exp (neg x)) (exp x)))
  (/ 2.0 (+ (exp (* -1 x)) (exp x)))
0.182 * * [simplify]: iteration  0 :  5322  enodes  (cost  597 )
0.184 * [simplify]: Simplified to:
   (cosh x)
  (exp (+ (exp x) (exp (neg x))))
  (log (+ (exp x) (exp (neg x))))
  (exp (+ (exp x) (exp (neg x))))
  (* (cbrt (+ (exp x) (exp (neg x)))) (cbrt (+ (exp x) (exp (neg x)))))
  (cbrt (+ (exp x) (exp (neg x))))
  (pow (+ (exp x) (exp (neg x))) 3)
  (sqrt (+ (exp x) (exp (neg x))))
  (sqrt (+ (exp x) (exp (neg x))))
  (+ (pow (exp x) 3) (pow (exp x) -3))
  (+ (pow (exp x) 2) (+ (pow (exp x) -2) -1))
  (- (pow (exp x) 2) (pow (exp x) -2))
  (- (exp x) (exp (neg x)))
  (+ (exp x) (exp (neg x)))
  (log (/ 2.0 (+ (exp x) (exp (neg x)))))
  (log (/ 2.0 (+ (exp x) (exp (neg x)))))
  (exp (/ 2.0 (+ (exp x) (exp (neg x)))))
  (pow (/ 2.0 (+ (exp x) (exp (neg x)))) 3)
  (* (cbrt (/ 2.0 (+ (exp x) (exp (neg x))))) (cbrt (/ 2.0 (+ (exp x) (exp (neg x))))))
  (cbrt (/ 2.0 (+ (exp x) (exp (neg x)))))
  (pow (/ 2.0 (+ (exp x) (exp (neg x)))) 3)
  (sqrt (/ 2.0 (+ (exp x) (exp (neg x)))))
  (sqrt (/ 2.0 (+ (exp x) (exp (neg x)))))
  (neg 2.0)
  (- (/ -1 (exp x)) (exp x))
  (* (cbrt 2.0) (/ (cbrt 2.0) 2))
  (/ (cbrt 2.0) (cosh x))
  (* (cbrt 2.0) (/ (cbrt 2.0) (* (cbrt (+ (exp x) (exp (neg x)))) (cbrt (+ (exp x) (exp (neg x)))))))
  (/ (cbrt 2.0) (cbrt (+ (exp x) (exp (neg x)))))
  (* (cbrt 2.0) (/ (cbrt 2.0) (sqrt (+ (exp x) (exp (neg x))))))
  (/ (cbrt 2.0) (sqrt (+ (exp x) (exp (neg x)))))
  (* (cbrt 2.0) (cbrt 2.0))
  (/ (cbrt 2.0) (+ (exp x) (exp (neg x))))
  (* (cbrt 2.0) (cbrt 2.0))
  (/ (cbrt 2.0) (+ (exp x) (exp (neg x))))
  (/ (sqrt 2.0) 2)
  (/ (sqrt 2.0) (cosh x))
  (/ (sqrt 2.0) (* (cbrt (+ (exp x) (exp (neg x)))) (cbrt (+ (exp x) (exp (neg x))))))
  (/ (sqrt 2.0) (cbrt (+ (exp x) (exp (neg x)))))
  (/ (sqrt 2.0) (sqrt (+ (exp x) (exp (neg x)))))
  (/ (sqrt 2.0) (sqrt (+ (exp x) (exp (neg x)))))
  (sqrt 2.0)
  (/ (sqrt 2.0) (+ (exp x) (exp (neg x))))
  (sqrt 2.0)
  (/ (sqrt 2.0) (+ (exp x) (exp (neg x))))
  1/2
  (/ 2.0 (cosh x))
  (/ 1 (* (cbrt (+ (exp x) (exp (neg x)))) (cbrt (+ (exp x) (exp (neg x))))))
  (/ 2.0 (cbrt (+ (exp x) (exp (neg x)))))
  (/ 1 (sqrt (+ (exp x) (exp (neg x)))))
  (/ 2.0 (sqrt (+ (exp x) (exp (neg x)))))
  1
  (/ 2.0 (+ (exp x) (exp (neg x))))
  1
  (/ 2.0 (+ (exp x) (exp (neg x))))
  (/ 1 (+ (exp x) (exp (neg x))))
  (/ (+ (exp x) (exp (neg x))) 2.0)
  (/ 2.0 2)
  (/ 2.0 (* (cbrt (+ (exp x) (exp (neg x)))) (cbrt (+ (exp x) (exp (neg x))))))
  (/ 2.0 (sqrt (+ (exp x) (exp (neg x)))))
  2.0
  2.0
  (/ (+ (exp x) (exp (neg x))) (cbrt 2.0))
  (/ (+ (exp x) (exp (neg x))) (sqrt 2.0))
  (/ (+ (exp x) (exp (neg x))) 2.0)
  (/ 2.0 (+ (pow (exp x) 3) (pow (exp x) -3)))
  (/ 2.0 (- (pow (exp x) 2) (pow (exp x) -2)))
  (+ 2 (+ (* x x) (* 1/12 (pow x 4))))
  (+ (exp x) (exp (neg x)))
  (+ (exp x) (exp (neg x)))
  (+ (* (pow x 4) 0.20833333333333334) (- 1.0 (* x (* x 0.5))))
  (/ 2.0 (+ (exp x) (exp (neg x))))
  (/ 2.0 (+ (exp x) (exp (neg x))))
0.185 * * * [progress]: adding candidates to table
0.237 * [progress]: [Phase 3 of 3] Extracting.
0.239 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ 2.0 (+ (exp x) (exp (neg x))))
0.240 * * [simplify]: iteration  0 :  15  enodes  (cost  8 )
0.240 * * [simplify]: iteration  1 :  15  enodes  (cost  8 )
0.240 * [simplify]: Simplified to:
   (/ 2.0 (+ (exp x) (exp (neg x))))
0.751 * [regime-testing]: End program error score: 0.009751218902362795