11.000 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.012 * * * [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 (- x))))
0.017 * * [simplify]: iteration  0 :  10  enodes  (cost  5 )
0.018 * * [simplify]: iteration  1 :  12  enodes  (cost  5 )
0.019 * * [simplify]: iteration  2 :  14  enodes  (cost  5 )
0.021 * * [simplify]: iteration  3 :  15  enodes  (cost  5 )
0.022 * * [simplify]: iteration  4 :  20  enodes  (cost  5 )
0.023 * * [simplify]: iteration  5 :  41  enodes  (cost  5 )
0.025 * * [simplify]: iteration  6 :  66  enodes  (cost  5 )
0.027 * * [simplify]: iteration  7 :  165  enodes  (cost  5 )
0.034 * * [simplify]: iteration  8 :  1123  enodes  (cost  5 )
0.228 * * [simplify]: iteration  9 :  5001  enodes  (cost  5 )
0.230 * [simplify]: Simplified to:
   (/ 2.0 (+ (exp x) (exp (- x))))
0.230 * * [progress]: iteration 1 / 4
0.230 * * * [progress]: picking best candidate
0.235 * * * * [pick]: Picked  #<alt (λ (x) (/ 2.0 (+ (exp x) (exp (- x)))))>
0.235 * * * [progress]: localizing error
0.241 * * * [progress]: generating rewritten candidates
0.241 * * * * [progress]: [ 1 / 2 ] rewriting at (2 2)
0.245 * * * * [progress]: [ 2 / 2 ] rewriting at (2)
0.253 * * * [progress]: generating series expansions
0.253 * * * * [progress]: [ 1 / 2 ] generating series at (2 2)
0.253 * [approximate]: Taking taylor expansion of (+ (exp x) (exp (- x))) in (x) around 0
0.253 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
0.253 * [taylor]: Taking taylor expansion of (exp x) in x
0.253 * [taylor]: Taking taylor expansion of x in x
0.253 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.253 * [taylor]: Taking taylor expansion of (- x) in x
0.253 * [taylor]: Taking taylor expansion of x in x
0.254 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
0.254 * [taylor]: Taking taylor expansion of (exp x) in x
0.254 * [taylor]: Taking taylor expansion of x in x
0.254 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.254 * [taylor]: Taking taylor expansion of (- x) in x
0.254 * [taylor]: Taking taylor expansion of x in x
0.269 * [approximate]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in (x) around 0
0.269 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.269 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.269 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.269 * [taylor]: Taking taylor expansion of x in x
0.269 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.269 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.269 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.269 * [taylor]: Taking taylor expansion of x in x
0.270 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.270 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.270 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.270 * [taylor]: Taking taylor expansion of x in x
0.270 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.270 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.270 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.270 * [taylor]: Taking taylor expansion of x in x
0.273 * [approximate]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in (x) around 0
0.273 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.273 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.273 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.273 * [taylor]: Taking taylor expansion of x in x
0.273 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.273 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.273 * [taylor]: Taking taylor expansion of -1 in x
0.273 * [taylor]: Taking taylor expansion of x in x
0.273 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.273 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.273 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.273 * [taylor]: Taking taylor expansion of x in x
0.274 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.274 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.274 * [taylor]: Taking taylor expansion of -1 in x
0.274 * [taylor]: Taking taylor expansion of x in x
0.276 * * * * [progress]: [ 2 / 2 ] generating series at (2)
0.276 * [approximate]: Taking taylor expansion of (/ 2.0 (+ (exp x) (exp (- x)))) in (x) around 0
0.276 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp x) (exp (- x)))) in x
0.276 * [taylor]: Taking taylor expansion of 2.0 in x
0.276 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
0.276 * [taylor]: Taking taylor expansion of (exp x) in x
0.276 * [taylor]: Taking taylor expansion of x in x
0.276 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.276 * [taylor]: Taking taylor expansion of (- x) in x
0.276 * [taylor]: Taking taylor expansion of x in x
0.277 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp x) (exp (- x)))) in x
0.277 * [taylor]: Taking taylor expansion of 2.0 in x
0.277 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
0.277 * [taylor]: Taking taylor expansion of (exp x) in x
0.277 * [taylor]: Taking taylor expansion of x in x
0.277 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.277 * [taylor]: Taking taylor expansion of (- x) in x
0.277 * [taylor]: Taking taylor expansion of x in x
0.301 * [approximate]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in (x) around 0
0.301 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in x
0.301 * [taylor]: Taking taylor expansion of 2.0 in x
0.301 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.301 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.301 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.301 * [taylor]: Taking taylor expansion of x in x
0.301 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.301 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.301 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.301 * [taylor]: Taking taylor expansion of x in x
0.302 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in x
0.302 * [taylor]: Taking taylor expansion of 2.0 in x
0.302 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.302 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.302 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.302 * [taylor]: Taking taylor expansion of x in x
0.302 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.303 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.303 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.303 * [taylor]: Taking taylor expansion of x in x
0.308 * [approximate]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (/ -1 x)))) in (x) around 0
0.308 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (/ -1 x)))) in x
0.308 * [taylor]: Taking taylor expansion of 2.0 in x
0.308 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.308 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.308 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.308 * [taylor]: Taking taylor expansion of x in x
0.309 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.309 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.309 * [taylor]: Taking taylor expansion of -1 in x
0.309 * [taylor]: Taking taylor expansion of x in x
0.309 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (/ -1 x)))) in x
0.309 * [taylor]: Taking taylor expansion of 2.0 in x
0.309 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.309 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.309 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.309 * [taylor]: Taking taylor expansion of x in x
0.309 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.309 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.310 * [taylor]: Taking taylor expansion of -1 in x
0.310 * [taylor]: Taking taylor expansion of x in x
0.314 * * * [progress]: simplifying candidates
0.315 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (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)))
  (expm1 (/ 2.0 (+ (exp x) (exp (- x)))))
  (log1p (/ 2.0 (+ (exp x) (exp (- x)))))
  (- (log 2.0) (log (+ (exp x) (exp (- x)))))
  (log (/ 2.0 (+ (exp x) (exp (- x)))))
  (exp (/ 2.0 (+ (exp x) (exp (- x)))))
  (/ (* (* 2.0 2.0) 2.0) (* (* (+ (exp x) (exp (- x))) (+ (exp x) (exp (- x)))) (+ (exp x) (exp (- x)))))
  (* (cbrt (/ 2.0 (+ (exp x) (exp (- x))))) (cbrt (/ 2.0 (+ (exp x) (exp (- x))))))
  (cbrt (/ 2.0 (+ (exp x) (exp (- x)))))
  (* (* (/ 2.0 (+ (exp x) (exp (- x)))) (/ 2.0 (+ (exp x) (exp (- x))))) (/ 2.0 (+ (exp x) (exp (- x)))))
  (sqrt (/ 2.0 (+ (exp x) (exp (- x)))))
  (sqrt (/ 2.0 (+ (exp x) (exp (- x)))))
  (- 2.0)
  (- (+ (exp x) (exp (- x))))
  (/ (* (cbrt 2.0) (cbrt 2.0)) (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (cbrt 2.0) (cbrt (+ (exp x) (exp (- x)))))
  (/ (* (cbrt 2.0) (cbrt 2.0)) (sqrt (+ (exp x) (exp (- x)))))
  (/ (cbrt 2.0) (sqrt (+ (exp x) (exp (- x)))))
  (/ (* (cbrt 2.0) (cbrt 2.0)) 1)
  (/ (cbrt 2.0) (+ (exp x) (exp (- x))))
  (/ (* (cbrt 2.0) (cbrt 2.0)) 1)
  (/ (cbrt 2.0) (+ (exp x) (exp (- x))))
  (/ (sqrt 2.0) (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (sqrt 2.0) (cbrt (+ (exp x) (exp (- x)))))
  (/ (sqrt 2.0) (sqrt (+ (exp x) (exp (- x)))))
  (/ (sqrt 2.0) (sqrt (+ (exp x) (exp (- x)))))
  (/ (sqrt 2.0) 1)
  (/ (sqrt 2.0) (+ (exp x) (exp (- x))))
  (/ (sqrt 2.0) 1)
  (/ (sqrt 2.0) (+ (exp x) (exp (- x))))
  (/ 1 (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ 2.0 (cbrt (+ (exp x) (exp (- x)))))
  (/ 1 (sqrt (+ (exp x) (exp (- x)))))
  (/ 2.0 (sqrt (+ (exp x) (exp (- x)))))
  (/ 1 1)
  (/ 2.0 (+ (exp x) (exp (- x))))
  (/ 1 1)
  (/ 2.0 (+ (exp x) (exp (- x))))
  (/ 1 (+ (exp x) (exp (- x))))
  (/ (+ (exp x) (exp (- x))) 2.0)
  (/ 2.0 (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ 2.0 (sqrt (+ (exp x) (exp (- x)))))
  (/ 2.0 1)
  (/ 2.0 1)
  (/ (+ (exp x) (exp (- x))) (cbrt 2.0))
  (/ (+ (exp x) (exp (- x))) (sqrt 2.0))
  (/ (+ (exp x) (exp (- x))) 2.0)
  (/ 2.0 (+ (pow (exp x) 3) (pow (exp (- x)) 3)))
  (/ 2.0 (- (* (exp x) (exp x)) (* (exp (- x)) (exp (- x)))))
  (+ (pow x 2) (+ (* 1/12 (pow x 4)) 2))
  (+ (exp x) (exp (- x)))
  (+ (exp (* -1 x)) (exp x))
  (- (+ (* 0.20833333333333334 (pow x 4)) 1.0) (* 0.5 (pow x 2)))
  (/ 2.0 (+ (exp x) (exp (- x))))
  (/ 2.0 (+ (exp (* -1 x)) (exp x)))
0.324 * * [simplify]: iteration  0 :  200  enodes  (cost  433 )
0.328 * * [simplify]: iteration  1 :  666  enodes  (cost  397 )
0.341 * * [simplify]: iteration  2 :  3139  enodes  (cost  394 )
0.441 * * [simplify]: iteration  3 :  5001  enodes  (cost  393 )
0.443 * [simplify]: Simplified to:
   (expm1 (+ (exp x) (exp (- x))))
  (log1p (+ (exp x) (exp (- x))))
  (exp (+ (exp x) (exp (- x))))
  (log (+ (exp (* -1 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 (* -1 x)) (exp x)) 3)
  (sqrt (+ (exp x) (exp (- x))))
  (sqrt (+ (exp x) (exp (- x))))
  (+ (pow (exp x) 3) (pow (exp (- x)) 3))
  (fma (exp x) (exp x) (expm1 (* x -2)))
  (fma (- (exp (- x))) (exp (* -1 x)) (exp (+ x x)))
  (- (exp x) (exp (- x)))
  (+ (exp (* -1 x)) (exp x))
  (expm1 (/ 2.0 (+ (exp x) (exp (- x)))))
  (log1p (/ 2.0 (+ (exp x) (exp (- x)))))
  (log (/ 2.0 (+ (exp x) (exp (- x)))))
  (log (/ 2.0 (+ (exp x) (exp (- x)))))
  (exp (/ 2.0 (+ (exp x) (exp (- x)))))
  (pow (/ 2.0 (+ (exp (* -1 x)) (exp x))) 3)
  (* (cbrt (/ 2.0 (+ (exp x) (exp (- x))))) (cbrt (/ 2.0 (+ (exp x) (exp (- x))))))
  (cbrt (/ 2.0 (+ (exp x) (exp (- x)))))
  (pow (/ 2.0 (+ (exp (* -1 x)) (exp x))) 3)
  (sqrt (/ 2.0 (+ (exp x) (exp (- x)))))
  (sqrt (/ 2.0 (+ (exp x) (exp (- x)))))
  (- 2.0)
  (- (+ (exp x) (exp (- x))))
  (/ (* (cbrt 2.0) (cbrt 2.0)) (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (cbrt 2.0) (cbrt (+ (exp x) (exp (- x)))))
  (/ (* (cbrt 2.0) (cbrt 2.0)) (sqrt (+ (exp x) (exp (- x)))))
  (/ (cbrt 2.0) (sqrt (+ (exp x) (exp (- x)))))
  (* (cbrt 2.0) (cbrt 2.0))
  (/ (cbrt 2.0) (+ (exp x) (exp (- x))))
  (* (cbrt 2.0) (cbrt 2.0))
  (/ (cbrt 2.0) (+ (exp x) (exp (- x))))
  (/ (sqrt 2.0) (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ (sqrt 2.0) (cbrt (+ (exp x) (exp (- x)))))
  (/ (sqrt 2.0) (sqrt (+ (exp x) (exp (- x)))))
  (/ (sqrt 2.0) (sqrt (+ (exp x) (exp (- x)))))
  (sqrt 2.0)
  (/ (sqrt 2.0) (+ (exp x) (exp (- x))))
  (sqrt 2.0)
  (/ (sqrt 2.0) (+ (exp x) (exp (- x))))
  (/ 1 (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ 2.0 (cbrt (+ (exp x) (exp (- x)))))
  (/ 1 (sqrt (+ (exp x) (exp (- x)))))
  (/ 2.0 (sqrt (+ (exp x) (exp (- x)))))
  1
  (/ 2.0 (+ (exp (* -1 x)) (exp x)))
  1
  (/ 2.0 (+ (exp (* -1 x)) (exp x)))
  (/ 1 (+ (exp x) (exp (- x))))
  (/ (+ (exp x) (exp (- x))) 2.0)
  (/ 2.0 (* (cbrt (+ (exp x) (exp (- x)))) (cbrt (+ (exp x) (exp (- x))))))
  (/ 2.0 (sqrt (+ (exp x) (exp (- x)))))
  2.0
  2.0
  (/ (+ (exp x) (exp (- x))) (cbrt 2.0))
  (/ (+ (exp x) (exp (- x))) (sqrt 2.0))
  (/ (+ (exp x) (exp (- x))) 2.0)
  (/ 2.0 (+ (pow (exp x) 3) (pow (exp (- x)) 3)))
  (/ 2.0 (fma (- (exp (- x))) (exp (* -1 x)) (exp (+ x x))))
  (fma x x (fma 1/12 (pow x 4) 2))
  (+ (exp (* -1 x)) (exp x))
  (+ (exp (* -1 x)) (exp x))
  (fma (pow x 4) 0.20833333333333334 (- 1.0 (* 0.5 (pow x 2))))
  (/ 2.0 (+ (exp (* -1 x)) (exp x)))
  (/ 2.0 (+ (exp (* -1 x)) (exp x)))
0.444 * * * [progress]: adding candidates to table
0.541 * [progress]: [Phase 3 of 3] Extracting.
0.542 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ 2.0 (+ (exp x) (exp (- x))))
0.543 * * [simplify]: iteration  0 :  8  enodes  (cost  5 )
0.543 * * [simplify]: iteration  1 :  8  enodes  (cost  5 )
0.543 * [simplify]: Simplified to:
   (/ 2.0 (+ (exp x) (exp (- x))))
0.934 * [regime-testing]: End program error score: 0.008199145205740863