48.960 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.020 * * * [progress]: [2/2] Setting up program.
0.025 * [progress]: [Phase 2 of 3] Improving.
0.025 * [simplify]: Simplifying:
  (/ 2.0 (+ (exp x) (exp (- x))))
0.025 * * [simplify]: iteration 0: 7 enodes
0.027 * * [simplify]: iteration 1: 10 enodes
0.029 * * [simplify]: iteration 2: 12 enodes
0.032 * * [simplify]: iteration complete: 12 enodes
0.032 * * [simplify]: Extracting #0: cost 1 inf + 0
0.032 * * [simplify]: Extracting #1: cost 3 inf + 0
0.032 * * [simplify]: Extracting #2: cost 4 inf + 1
0.032 * * [simplify]: Extracting #3: cost 7 inf + 1
0.032 * * [simplify]: Extracting #4: cost 0 inf + 709
0.032 * [simplify]: Simplified to:
  (/ 2.0 (+ (exp x) (exp (- x))))
0.033 * * [progress]: iteration 1 / 4
0.033 * * * [progress]: picking best candidate
0.039 * * * * [pick]: Picked  #<alt (λ (x) (/ 2.0 (+ (exp x) (exp (- x)))))>
0.039 * * * [progress]: localizing error
0.056 * * * [progress]: generating rewritten candidates
0.056 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.073 * * * [progress]: generating series expansions
0.073 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.074 * [backup-simplify]: Simplify (+ (exp x) (exp (- x))) into (+ (exp x) (exp (- x)))
0.074 * [approximate]: Taking taylor expansion of (+ (exp x) (exp (- x))) in (x) around 0
0.074 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
0.074 * [taylor]: Taking taylor expansion of (exp x) in x
0.074 * [taylor]: Taking taylor expansion of x in x
0.074 * [backup-simplify]: Simplify 0 into 0
0.074 * [backup-simplify]: Simplify 1 into 1
0.074 * [backup-simplify]: Simplify (exp 0) into 1
0.074 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.074 * [taylor]: Taking taylor expansion of (- x) in x
0.074 * [taylor]: Taking taylor expansion of x in x
0.074 * [backup-simplify]: Simplify 0 into 0
0.074 * [backup-simplify]: Simplify 1 into 1
0.083 * [backup-simplify]: Simplify (- 0) into 0
0.084 * [backup-simplify]: Simplify (- 1) into -1
0.084 * [backup-simplify]: Simplify (exp 0) into 1
0.084 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x
0.084 * [taylor]: Taking taylor expansion of (exp x) in x
0.084 * [taylor]: Taking taylor expansion of x in x
0.084 * [backup-simplify]: Simplify 0 into 0
0.084 * [backup-simplify]: Simplify 1 into 1
0.084 * [backup-simplify]: Simplify (exp 0) into 1
0.084 * [taylor]: Taking taylor expansion of (exp (- x)) in x
0.084 * [taylor]: Taking taylor expansion of (- x) in x
0.084 * [taylor]: Taking taylor expansion of x in x
0.084 * [backup-simplify]: Simplify 0 into 0
0.084 * [backup-simplify]: Simplify 1 into 1
0.085 * [backup-simplify]: Simplify (- 0) into 0
0.085 * [backup-simplify]: Simplify (- 1) into -1
0.085 * [backup-simplify]: Simplify (exp 0) into 1
0.086 * [backup-simplify]: Simplify (+ 1 1) into 2
0.086 * [backup-simplify]: Simplify 2 into 2
0.087 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 1) 1)))) into 1
0.088 * [backup-simplify]: Simplify (- 1) into -1
0.089 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 1) 1)))) into -1
0.089 * [backup-simplify]: Simplify (+ 1 -1) into 0
0.089 * [backup-simplify]: Simplify 0 into 0
0.090 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 2) 2)) (* (/ (pow 0 1) 1)))) into 1/2
0.090 * [backup-simplify]: Simplify (- 1) into -1
0.091 * [backup-simplify]: Simplify (- 0) into 0
0.093 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 2) 2)) (* (/ (pow 0 1) 1)))) into 1/2
0.093 * [backup-simplify]: Simplify (+ 1/2 1/2) into 1
0.093 * [backup-simplify]: Simplify 1 into 1
0.095 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 3) 6)) (* (/ (pow 1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into 1/6
0.096 * [backup-simplify]: Simplify (- 1) into -1
0.096 * [backup-simplify]: Simplify (- 1) into -1
0.097 * [backup-simplify]: Simplify (- 0) into 0
0.097 * [backup-simplify]: Simplify (- 0) into 0
0.099 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 3) 6)) (* (/ (pow -1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into -1/6
0.099 * [backup-simplify]: Simplify (+ 1/6 -1/6) into 0
0.099 * [backup-simplify]: Simplify 0 into 0
0.102 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 4) 24)) (* (/ (pow 1 2) 2) (/ (pow 0 1) 1)) (* (/ (pow 1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 1/24
0.102 * [backup-simplify]: Simplify (- 1) into -1
0.102 * [backup-simplify]: Simplify (- 1) into -1
0.103 * [backup-simplify]: Simplify (- 0) into 0
0.103 * [backup-simplify]: Simplify (- 1) into -1
0.103 * [backup-simplify]: Simplify (- 0) into 0
0.104 * [backup-simplify]: Simplify (- 0) into 0
0.104 * [backup-simplify]: Simplify (- 0) into 0
0.108 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 4) 24)) (* (/ (pow -1 2) 2) (/ (pow 0 1) 1)) (* (/ (pow -1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 1/24
0.108 * [backup-simplify]: Simplify (+ 1/24 1/24) into 1/12
0.108 * [backup-simplify]: Simplify 1/12 into 1/12
0.109 * [backup-simplify]: Simplify (+ (* 1/12 (pow x 4)) (+ (* 1 (pow x 2)) 2)) into (+ (pow x 2) (+ (* 1/12 (pow x 4)) 2))
0.109 * [backup-simplify]: Simplify (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) into (+ (exp (/ 1 x)) (exp (- (/ 1 x))))
0.109 * [approximate]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in (x) around 0
0.109 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.109 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.109 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.109 * [taylor]: Taking taylor expansion of x in x
0.109 * [backup-simplify]: Simplify 0 into 0
0.109 * [backup-simplify]: Simplify 1 into 1
0.109 * [backup-simplify]: Simplify (/ 1 1) into 1
0.110 * [backup-simplify]: Simplify (exp (/ 1 x)) into (exp (/ 1 x))
0.110 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.110 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.110 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.110 * [taylor]: Taking taylor expansion of x in x
0.110 * [backup-simplify]: Simplify 0 into 0
0.110 * [backup-simplify]: Simplify 1 into 1
0.110 * [backup-simplify]: Simplify (/ 1 1) into 1
0.110 * [backup-simplify]: Simplify (- 1) into -1
0.110 * [backup-simplify]: Simplify (exp (- (/ 1 x))) into (exp (- (/ 1 x)))
0.110 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x
0.111 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.111 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.111 * [taylor]: Taking taylor expansion of x in x
0.111 * [backup-simplify]: Simplify 0 into 0
0.111 * [backup-simplify]: Simplify 1 into 1
0.111 * [backup-simplify]: Simplify (/ 1 1) into 1
0.111 * [backup-simplify]: Simplify (exp (/ 1 x)) into (exp (/ 1 x))
0.111 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x
0.111 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.111 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.111 * [taylor]: Taking taylor expansion of x in x
0.111 * [backup-simplify]: Simplify 0 into 0
0.111 * [backup-simplify]: Simplify 1 into 1
0.112 * [backup-simplify]: Simplify (/ 1 1) into 1
0.112 * [backup-simplify]: Simplify (- 1) into -1
0.112 * [backup-simplify]: Simplify (exp (- (/ 1 x))) into (exp (- (/ 1 x)))
0.113 * [backup-simplify]: Simplify (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) into (+ (exp (/ 1 x)) (exp (- (/ 1 x))))
0.113 * [backup-simplify]: Simplify (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) into (+ (exp (/ 1 x)) (exp (- (/ 1 x))))
0.113 * [backup-simplify]: Simplify (+ 0 0) into 0
0.113 * [backup-simplify]: Simplify 0 into 0
0.113 * [backup-simplify]: Simplify (+ 0 0) into 0
0.113 * [backup-simplify]: Simplify 0 into 0
0.114 * [backup-simplify]: Simplify (+ 0 0) into 0
0.114 * [backup-simplify]: Simplify 0 into 0
0.114 * [backup-simplify]: Simplify (+ 0 0) into 0
0.114 * [backup-simplify]: Simplify 0 into 0
0.115 * [backup-simplify]: Simplify (+ 0 0) into 0
0.115 * [backup-simplify]: Simplify 0 into 0
0.115 * [backup-simplify]: Simplify (+ 0 0) into 0
0.115 * [backup-simplify]: Simplify 0 into 0
0.115 * [backup-simplify]: Simplify (+ (exp (/ 1 (/ 1 x))) (exp (- (/ 1 (/ 1 x))))) into (+ (exp x) (exp (- x)))
0.115 * [backup-simplify]: Simplify (+ (exp (/ 1 (- x))) (exp (- (/ 1 (- x))))) into (+ (exp (/ 1 x)) (exp (/ -1 x)))
0.115 * [approximate]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in (x) around 0
0.115 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.115 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.115 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.116 * [taylor]: Taking taylor expansion of x in x
0.116 * [backup-simplify]: Simplify 0 into 0
0.116 * [backup-simplify]: Simplify 1 into 1
0.116 * [backup-simplify]: Simplify (/ 1 1) into 1
0.116 * [backup-simplify]: Simplify (exp (/ 1 x)) into (exp (/ 1 x))
0.116 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.116 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.116 * [taylor]: Taking taylor expansion of -1 in x
0.116 * [backup-simplify]: Simplify -1 into -1
0.116 * [taylor]: Taking taylor expansion of x in x
0.116 * [backup-simplify]: Simplify 0 into 0
0.116 * [backup-simplify]: Simplify 1 into 1
0.117 * [backup-simplify]: Simplify (/ -1 1) into -1
0.117 * [backup-simplify]: Simplify (exp (/ -1 x)) into (exp (/ -1 x))
0.117 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x
0.117 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.117 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.117 * [taylor]: Taking taylor expansion of x in x
0.117 * [backup-simplify]: Simplify 0 into 0
0.117 * [backup-simplify]: Simplify 1 into 1
0.117 * [backup-simplify]: Simplify (/ 1 1) into 1
0.117 * [backup-simplify]: Simplify (exp (/ 1 x)) into (exp (/ 1 x))
0.117 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.117 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.117 * [taylor]: Taking taylor expansion of -1 in x
0.117 * [backup-simplify]: Simplify -1 into -1
0.117 * [taylor]: Taking taylor expansion of x in x
0.117 * [backup-simplify]: Simplify 0 into 0
0.117 * [backup-simplify]: Simplify 1 into 1
0.118 * [backup-simplify]: Simplify (/ -1 1) into -1
0.118 * [backup-simplify]: Simplify (exp (/ -1 x)) into (exp (/ -1 x))
0.118 * [backup-simplify]: Simplify (+ (exp (/ 1 x)) (exp (/ -1 x))) into (+ (exp (/ 1 x)) (exp (/ -1 x)))
0.118 * [backup-simplify]: Simplify (+ (exp (/ 1 x)) (exp (/ -1 x))) into (+ (exp (/ 1 x)) (exp (/ -1 x)))
0.119 * [backup-simplify]: Simplify (+ 0 0) into 0
0.119 * [backup-simplify]: Simplify 0 into 0
0.119 * [backup-simplify]: Simplify (+ 0 0) into 0
0.119 * [backup-simplify]: Simplify 0 into 0
0.119 * [backup-simplify]: Simplify (+ 0 0) into 0
0.119 * [backup-simplify]: Simplify 0 into 0
0.120 * [backup-simplify]: Simplify (+ 0 0) into 0
0.120 * [backup-simplify]: Simplify 0 into 0
0.120 * [backup-simplify]: Simplify (+ 0 0) into 0
0.120 * [backup-simplify]: Simplify 0 into 0
0.120 * [backup-simplify]: Simplify (+ 0 0) into 0
0.120 * [backup-simplify]: Simplify 0 into 0
0.121 * [backup-simplify]: Simplify (+ (exp (/ 1 (/ 1 (- x)))) (exp (/ -1 (/ 1 (- x))))) into (+ (exp (* -1 x)) (exp x))
0.121 * * * [progress]: simplifying candidates
0.121 * [simplify]: Simplifying:
  (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)))
  (+ (pow x 2) (+ (* 1/12 (pow x 4)) 2))
  (+ (exp x) (exp (- x)))
  (+ (exp (* -1 x)) (exp x))
0.122 * * [simplify]: iteration 0: 40 enodes
0.136 * * [simplify]: iteration 1: 110 enodes
0.186 * * [simplify]: iteration 2: 353 enodes
0.340 * * [simplify]: iteration 3: 1230 enodes
1.586 * * [simplify]: iteration 4: 4233 enodes
2.177 * * [simplify]: iteration complete: 5000 enodes
2.177 * * [simplify]: Extracting #0: cost 14 inf + 0
2.178 * * [simplify]: Extracting #1: cost 164 inf + 0
2.180 * * [simplify]: Extracting #2: cost 576 inf + 2925
2.189 * * [simplify]: Extracting #3: cost 440 inf + 35913
2.216 * * [simplify]: Extracting #4: cost 97 inf + 119373
2.252 * * [simplify]: Extracting #5: cost 1 inf + 160645
2.286 * * [simplify]: Extracting #6: cost 0 inf + 158412
2.321 * * [simplify]: Extracting #7: cost 0 inf + 158409
2.356 * [simplify]: Simplified to:
  (expm1 (+ (exp (- x)) (exp x)))
  (log1p (+ (exp (- x)) (exp x)))
  (exp (+ (exp (- x)) (exp x)))
  (log (+ (exp (- x)) (exp x)))
  (exp (+ (exp (- x)) (exp x)))
  (* (cbrt (+ (exp (- x)) (exp x))) (cbrt (+ (exp (- x)) (exp x))))
  (cbrt (+ (exp (- x)) (exp x)))
  (* (fma (exp x) (exp x) (fma (/ 1 (exp x)) (/ 1 (exp x)) 2)) (+ (exp x) (/ 1 (exp x))))
  (sqrt (+ (exp (- x)) (exp x)))
  (sqrt (+ (exp (- x)) (exp x)))
  (+ (* (exp x) (* (exp x) (exp x))) (/ 1 (* (exp x) (* (exp x) (exp x)))))
  (fma (/ 1 (exp x)) (/ 1 (exp x)) (fma (exp x) (exp x) -1))
  (+ (* (exp x) (exp x)) (/ -1 (* (exp x) (exp x))))
  (+ (/ -1 (exp x)) (exp x))
  (+ (exp (- x)) (exp x))
  (+ 2 (fma 1/12 (* (* x x) (* x x)) (* x x)))
  (+ (exp (- x)) (exp x))
  (+ (exp (- x)) (exp x))
2.356 * * * [progress]: adding candidates to table
2.427 * * [progress]: iteration 2 / 4
2.427 * * * [progress]: picking best candidate
2.430 * * * * [pick]: Picked  #<alt (λ (x) (/ 2.0 (fma (sqrt (exp x)) (sqrt (exp x)) (exp (- x)))))>
2.430 * * * [progress]: localizing error
2.442 * * * [progress]: generating rewritten candidates
2.442 * * * [progress]: generating series expansions
2.442 * * * [progress]: simplifying candidates
2.442 * [simplify]: Simplifying:
  
2.442 * * [simplify]: iteration 0: 0 enodes
2.442 * * [simplify]: iteration complete: 0 enodes
2.442 * * [simplify]: Extracting #0: cost 0 inf + 0
2.442 * [simplify]: Simplified to:
  
2.442 * * * [progress]: adding candidates to table
2.443 * [progress]: [Phase 3 of 3] Extracting.
2.447 * [simplify]: Simplifying:
  (/ 2.0 (fma (sqrt (exp x)) (sqrt (exp x)) (exp (- x))))
2.447 * * [simplify]: iteration 0: 8 enodes
2.448 * * [simplify]: iteration complete: 8 enodes
2.448 * * [simplify]: Extracting #0: cost 1 inf + 0
2.448 * * [simplify]: Extracting #1: cost 3 inf + 0
2.448 * * [simplify]: Extracting #2: cost 4 inf + 1
2.448 * * [simplify]: Extracting #3: cost 6 inf + 1
2.448 * * [simplify]: Extracting #4: cost 7 inf + 1
2.448 * * [simplify]: Extracting #5: cost 0 inf + 929
2.448 * [simplify]: Simplified to:
  (/ 2.0 (fma (sqrt (exp x)) (sqrt (exp x)) (exp (- x))))
3.320 * [regime-testing]: Baseline error score: 0.011836442055978152
3.328 * [regime-testing]: Oracle error score: 0.011836442055978152
3.328 * [regime-testing]: End program error score: 0.011836442055978152