9.963 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.025 * * * [progress]: [2/2] Setting up program.
0.031 * [progress]: [Phase 2 of 3] Improving.
0.032 * [simplify]: Simplifying:
  (- (/ (* x y) 2.0) (/ z 8.0))
0.032 * * [simplify]: iteration 0: 9 enodes
0.034 * * [simplify]: iteration 1: 14 enodes
0.038 * * [simplify]: iteration 2: 19 enodes
0.042 * * [simplify]: iteration 3: 23 enodes
0.047 * * [simplify]: iteration 4: 25 enodes
0.052 * * [simplify]: iteration 5: 26 enodes
0.057 * * [simplify]: iteration complete: 26 enodes
0.057 * * [simplify]: Extracting #0: cost 1 inf + 0
0.057 * * [simplify]: Extracting #1: cost 6 inf + 0
0.057 * * [simplify]: Extracting #2: cost 14 inf + 1
0.057 * * [simplify]: Extracting #3: cost 7 inf + 171
0.058 * * [simplify]: Extracting #4: cost 0 inf + 628
0.058 * [simplify]: Simplified to:
  (- (/ (* x y) 2.0) (/ z 8.0))
0.058 * * [progress]: iteration 1 / 4
0.058 * * * [progress]: picking best candidate
0.062 * * * * [pick]: Picked  #<alt (λ (x y z) (- (/ (* x y) 2.0) (/ z 8.0)))>
0.062 * * * [progress]: localizing error
0.080 * * * [progress]: generating rewritten candidates
0.080 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.094 * * * [progress]: generating series expansions
0.094 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.094 * [backup-simplify]: Simplify (/ (* x y) 2.0) into (* 0.5 (* x y))
0.094 * [approximate]: Taking taylor expansion of (* 0.5 (* x y)) in (x y) around 0
0.094 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in y
0.094 * [taylor]: Taking taylor expansion of 0.5 in y
0.094 * [backup-simplify]: Simplify 0.5 into 0.5
0.094 * [taylor]: Taking taylor expansion of (* x y) in y
0.094 * [taylor]: Taking taylor expansion of x in y
0.094 * [backup-simplify]: Simplify x into x
0.094 * [taylor]: Taking taylor expansion of y in y
0.094 * [backup-simplify]: Simplify 0 into 0
0.094 * [backup-simplify]: Simplify 1 into 1
0.095 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in x
0.095 * [taylor]: Taking taylor expansion of 0.5 in x
0.095 * [backup-simplify]: Simplify 0.5 into 0.5
0.095 * [taylor]: Taking taylor expansion of (* x y) in x
0.095 * [taylor]: Taking taylor expansion of x in x
0.095 * [backup-simplify]: Simplify 0 into 0
0.095 * [backup-simplify]: Simplify 1 into 1
0.095 * [taylor]: Taking taylor expansion of y in x
0.095 * [backup-simplify]: Simplify y into y
0.095 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in x
0.095 * [taylor]: Taking taylor expansion of 0.5 in x
0.095 * [backup-simplify]: Simplify 0.5 into 0.5
0.095 * [taylor]: Taking taylor expansion of (* x y) in x
0.095 * [taylor]: Taking taylor expansion of x in x
0.095 * [backup-simplify]: Simplify 0 into 0
0.095 * [backup-simplify]: Simplify 1 into 1
0.095 * [taylor]: Taking taylor expansion of y in x
0.095 * [backup-simplify]: Simplify y into y
0.095 * [backup-simplify]: Simplify (* 0 y) into 0
0.096 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.096 * [taylor]: Taking taylor expansion of 0 in y
0.096 * [backup-simplify]: Simplify 0 into 0
0.096 * [backup-simplify]: Simplify 0 into 0
0.097 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.097 * [backup-simplify]: Simplify (+ (* 0.5 y) (* 0 0)) into (* 0.5 y)
0.097 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.097 * [taylor]: Taking taylor expansion of 0.5 in y
0.097 * [backup-simplify]: Simplify 0.5 into 0.5
0.097 * [taylor]: Taking taylor expansion of y in y
0.097 * [backup-simplify]: Simplify 0 into 0
0.097 * [backup-simplify]: Simplify 1 into 1
0.098 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.098 * [backup-simplify]: Simplify 0 into 0
0.098 * [backup-simplify]: Simplify 0 into 0
0.099 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.100 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 y) (* 0 0))) into 0
0.100 * [taylor]: Taking taylor expansion of 0 in y
0.100 * [backup-simplify]: Simplify 0 into 0
0.100 * [backup-simplify]: Simplify 0 into 0
0.102 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
0.102 * [backup-simplify]: Simplify 0.5 into 0.5
0.102 * [backup-simplify]: Simplify 0 into 0
0.103 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.104 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 y) (* 0 0)))) into 0
0.104 * [taylor]: Taking taylor expansion of 0 in y
0.104 * [backup-simplify]: Simplify 0 into 0
0.104 * [backup-simplify]: Simplify 0 into 0
0.104 * [backup-simplify]: Simplify 0 into 0
0.105 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
0.105 * [backup-simplify]: Simplify 0 into 0
0.105 * [backup-simplify]: Simplify 0 into 0
0.106 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.108 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 y) (* 0 0))))) into 0
0.108 * [taylor]: Taking taylor expansion of 0 in y
0.108 * [backup-simplify]: Simplify 0 into 0
0.108 * [backup-simplify]: Simplify 0 into 0
0.108 * [backup-simplify]: Simplify (* 0.5 (* y x)) into (* 0.5 (* x y))
0.108 * [backup-simplify]: Simplify (/ (* (/ 1 x) (/ 1 y)) 2.0) into (/ 0.5 (* x y))
0.108 * [approximate]: Taking taylor expansion of (/ 0.5 (* x y)) in (x y) around 0
0.108 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in y
0.108 * [taylor]: Taking taylor expansion of 0.5 in y
0.108 * [backup-simplify]: Simplify 0.5 into 0.5
0.108 * [taylor]: Taking taylor expansion of (* x y) in y
0.108 * [taylor]: Taking taylor expansion of x in y
0.108 * [backup-simplify]: Simplify x into x
0.108 * [taylor]: Taking taylor expansion of y in y
0.108 * [backup-simplify]: Simplify 0 into 0
0.108 * [backup-simplify]: Simplify 1 into 1
0.109 * [backup-simplify]: Simplify (* x 0) into 0
0.109 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.109 * [backup-simplify]: Simplify (/ 0.5 x) into (/ 0.5 x)
0.109 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.109 * [taylor]: Taking taylor expansion of 0.5 in x
0.109 * [backup-simplify]: Simplify 0.5 into 0.5
0.109 * [taylor]: Taking taylor expansion of (* x y) 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 * [taylor]: Taking taylor expansion of y in x
0.109 * [backup-simplify]: Simplify y into y
0.109 * [backup-simplify]: Simplify (* 0 y) into 0
0.110 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.110 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.110 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.110 * [taylor]: Taking taylor expansion of 0.5 in x
0.110 * [backup-simplify]: Simplify 0.5 into 0.5
0.110 * [taylor]: Taking taylor expansion of (* x y) 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 * [taylor]: Taking taylor expansion of y in x
0.110 * [backup-simplify]: Simplify y into y
0.110 * [backup-simplify]: Simplify (* 0 y) into 0
0.110 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.111 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.111 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y
0.111 * [taylor]: Taking taylor expansion of 0.5 in y
0.111 * [backup-simplify]: Simplify 0.5 into 0.5
0.111 * [taylor]: Taking taylor expansion of y in y
0.111 * [backup-simplify]: Simplify 0 into 0
0.111 * [backup-simplify]: Simplify 1 into 1
0.111 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5
0.111 * [backup-simplify]: Simplify 0.5 into 0.5
0.112 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.112 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)))) into 0
0.112 * [taylor]: Taking taylor expansion of 0 in y
0.112 * [backup-simplify]: Simplify 0 into 0
0.113 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0
0.113 * [backup-simplify]: Simplify 0 into 0
0.114 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.114 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.114 * [taylor]: Taking taylor expansion of 0 in y
0.114 * [backup-simplify]: Simplify 0 into 0
0.114 * [backup-simplify]: Simplify 0 into 0
0.115 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.115 * [backup-simplify]: Simplify 0 into 0
0.117 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.117 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.117 * [taylor]: Taking taylor expansion of 0 in y
0.117 * [backup-simplify]: Simplify 0 into 0
0.117 * [backup-simplify]: Simplify 0 into 0
0.117 * [backup-simplify]: Simplify 0 into 0
0.118 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.118 * [backup-simplify]: Simplify 0 into 0
0.118 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (/ 1 y)) (/ 1 (/ 1 x)))) into (* 0.5 (* x y))
0.119 * [backup-simplify]: Simplify (/ (* (/ 1 (- x)) (/ 1 (- y))) 2.0) into (/ 0.5 (* x y))
0.119 * [approximate]: Taking taylor expansion of (/ 0.5 (* x y)) in (x y) around 0
0.119 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in y
0.119 * [taylor]: Taking taylor expansion of 0.5 in y
0.119 * [backup-simplify]: Simplify 0.5 into 0.5
0.119 * [taylor]: Taking taylor expansion of (* x y) in y
0.119 * [taylor]: Taking taylor expansion of x in y
0.119 * [backup-simplify]: Simplify x into x
0.119 * [taylor]: Taking taylor expansion of y in y
0.119 * [backup-simplify]: Simplify 0 into 0
0.119 * [backup-simplify]: Simplify 1 into 1
0.119 * [backup-simplify]: Simplify (* x 0) into 0
0.120 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.120 * [backup-simplify]: Simplify (/ 0.5 x) into (/ 0.5 x)
0.120 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.120 * [taylor]: Taking taylor expansion of 0.5 in x
0.120 * [backup-simplify]: Simplify 0.5 into 0.5
0.120 * [taylor]: Taking taylor expansion of (* x y) in x
0.120 * [taylor]: Taking taylor expansion of x in x
0.120 * [backup-simplify]: Simplify 0 into 0
0.120 * [backup-simplify]: Simplify 1 into 1
0.120 * [taylor]: Taking taylor expansion of y in x
0.120 * [backup-simplify]: Simplify y into y
0.120 * [backup-simplify]: Simplify (* 0 y) into 0
0.121 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.121 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.121 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.121 * [taylor]: Taking taylor expansion of 0.5 in x
0.121 * [backup-simplify]: Simplify 0.5 into 0.5
0.121 * [taylor]: Taking taylor expansion of (* x y) in x
0.121 * [taylor]: Taking taylor expansion of x in x
0.121 * [backup-simplify]: Simplify 0 into 0
0.121 * [backup-simplify]: Simplify 1 into 1
0.121 * [taylor]: Taking taylor expansion of y in x
0.121 * [backup-simplify]: Simplify y into y
0.121 * [backup-simplify]: Simplify (* 0 y) into 0
0.121 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.121 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.121 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y
0.121 * [taylor]: Taking taylor expansion of 0.5 in y
0.121 * [backup-simplify]: Simplify 0.5 into 0.5
0.122 * [taylor]: Taking taylor expansion of y in y
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify 1 into 1
0.122 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5
0.122 * [backup-simplify]: Simplify 0.5 into 0.5
0.123 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.123 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)))) into 0
0.123 * [taylor]: Taking taylor expansion of 0 in y
0.123 * [backup-simplify]: Simplify 0 into 0
0.124 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0
0.124 * [backup-simplify]: Simplify 0 into 0
0.125 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.125 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.126 * [taylor]: Taking taylor expansion of 0 in y
0.126 * [backup-simplify]: Simplify 0 into 0
0.126 * [backup-simplify]: Simplify 0 into 0
0.127 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.127 * [backup-simplify]: Simplify 0 into 0
0.128 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.128 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.128 * [taylor]: Taking taylor expansion of 0 in y
0.128 * [backup-simplify]: Simplify 0 into 0
0.128 * [backup-simplify]: Simplify 0 into 0
0.128 * [backup-simplify]: Simplify 0 into 0
0.129 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.130 * [backup-simplify]: Simplify 0 into 0
0.130 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (/ 1 (- y))) (/ 1 (/ 1 (- x))))) into (* 0.5 (* x y))
0.130 * * * [progress]: simplifying candidates
0.130 * [simplify]: Simplifying:
  (expm1 (/ (* x y) 2.0))
  (log1p (/ (* x y) 2.0))
  (- (+ (log x) (log y)) (log 2.0))
  (- (log (* x y)) (log 2.0))
  (log (/ (* x y) 2.0))
  (exp (/ (* x y) 2.0))
  (/ (* (* (* x x) x) (* (* y y) y)) (* (* 2.0 2.0) 2.0))
  (/ (* (* (* x y) (* x y)) (* x y)) (* (* 2.0 2.0) 2.0))
  (* (cbrt (/ (* x y) 2.0)) (cbrt (/ (* x y) 2.0)))
  (cbrt (/ (* x y) 2.0))
  (* (* (/ (* x y) 2.0) (/ (* x y) 2.0)) (/ (* x y) 2.0))
  (sqrt (/ (* x y) 2.0))
  (sqrt (/ (* x y) 2.0))
  (- (* x y))
  (- 2.0)
  (/ x (* (cbrt 2.0) (cbrt 2.0)))
  (/ y (cbrt 2.0))
  (/ x (sqrt 2.0))
  (/ y (sqrt 2.0))
  (/ x 1)
  (/ y 2.0)
  (/ 1 2.0)
  (/ 2.0 (* x y))
  (/ (* x y) (* (cbrt 2.0) (cbrt 2.0)))
  (/ (* x y) (sqrt 2.0))
  (/ (* x y) 1)
  (/ 2.0 y)
  (* 0.5 (* x y))
  (* 0.5 (* x y))
  (* 0.5 (* x y))
0.131 * * [simplify]: iteration 0: 52 enodes
0.150 * * [simplify]: iteration 1: 125 enodes
0.220 * * [simplify]: iteration 2: 476 enodes
0.803 * * [simplify]: iteration 3: 2239 enodes
1.481 * * [simplify]: iteration complete: 5000 enodes
1.481 * * [simplify]: Extracting #0: cost 23 inf + 0
1.485 * * [simplify]: Extracting #1: cost 1090 inf + 1
1.497 * * [simplify]: Extracting #2: cost 1731 inf + 5332
1.535 * * [simplify]: Extracting #3: cost 872 inf + 116813
1.629 * * [simplify]: Extracting #4: cost 71 inf + 249874
1.725 * * [simplify]: Extracting #5: cost 0 inf + 264843
1.809 * [simplify]: Simplified to:
  (expm1 (/ x (/ 2.0 y)))
  (log1p (/ x (/ 2.0 y)))
  (log (/ x (/ 2.0 y)))
  (log (/ x (/ 2.0 y)))
  (log (/ x (/ 2.0 y)))
  (exp (/ x (/ 2.0 y)))
  (* (* (/ x (/ 2.0 y)) (/ x (/ 2.0 y))) (/ x (/ 2.0 y)))
  (* (* (/ x (/ 2.0 y)) (/ x (/ 2.0 y))) (/ x (/ 2.0 y)))
  (* (cbrt (/ x (/ 2.0 y))) (cbrt (/ x (/ 2.0 y))))
  (cbrt (/ x (/ 2.0 y)))
  (* (* (/ x (/ 2.0 y)) (/ x (/ 2.0 y))) (/ x (/ 2.0 y)))
  (sqrt (/ x (/ 2.0 y)))
  (sqrt (/ x (/ 2.0 y)))
  (* (- x) y)
  (- 2.0)
  (/ (/ x (cbrt 2.0)) (cbrt 2.0))
  (/ y (cbrt 2.0))
  (/ x (sqrt 2.0))
  (/ y (sqrt 2.0))
  x
  (/ y 2.0)
  (/ 1 2.0)
  (/ (/ 2.0 x) y)
  (/ (* (/ x (cbrt 2.0)) y) (cbrt 2.0))
  (* (/ x (sqrt 2.0)) y)
  (* x y)
  (/ 2.0 y)
  (* y (* x 0.5))
  (* y (* x 0.5))
  (* y (* x 0.5))
1.811 * * * [progress]: adding candidates to table
1.924 * [progress]: [Phase 3 of 3] Extracting.
1.928 * [simplify]: Simplifying:
  (- (/ (* x y) 2.0) (/ z 8.0))
1.928 * * [simplify]: iteration 0: 9 enodes
1.928 * * [simplify]: iteration 1: 10 enodes
1.929 * * [simplify]: iteration complete: 10 enodes
1.929 * * [simplify]: Extracting #0: cost 1 inf + 0
1.929 * * [simplify]: Extracting #1: cost 3 inf + 0
1.929 * * [simplify]: Extracting #2: cost 7 inf + 0
1.929 * * [simplify]: Extracting #3: cost 5 inf + 45
1.929 * * [simplify]: Extracting #4: cost 3 inf + 47
1.929 * * [simplify]: Extracting #5: cost 0 inf + 337
1.929 * [simplify]: Simplified to:
  (- (/ (* x y) 2.0) (/ z 8.0))
2.940 * [regime-testing]: Baseline error score: 0.021450801662797996
2.953 * [regime-testing]: Oracle error score: 0.021450801662797996
2.953 * [regime-testing]: End program error score: 0.021450801662797996