32.078 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.029 * * * [progress]: [2/2] Setting up program.
0.036 * [progress]: [Phase 2 of 3] Improving.
0.036 * [simplify]: Simplifying:
  (- (/ (* x y) 2.0) (/ z 8.0))
0.036 * * [simplify]: iteration 0: 9 enodes
0.038 * * [simplify]: iteration 1: 14 enodes
0.041 * * [simplify]: iteration 2: 21 enodes
0.045 * * [simplify]: iteration 3: 25 enodes
0.051 * * [simplify]: iteration 4: 28 enodes
0.056 * * [simplify]: iteration 5: 29 enodes
0.062 * * [simplify]: iteration complete: 29 enodes
0.062 * * [simplify]: Extracting #0: cost 1 inf + 0
0.062 * * [simplify]: Extracting #1: cost 8 inf + 0
0.062 * * [simplify]: Extracting #2: cost 13 inf + 2
0.062 * * [simplify]: Extracting #3: cost 5 inf + 255
0.063 * * [simplify]: Extracting #4: cost 0 inf + 628
0.063 * [simplify]: Simplified to:
  (- (/ (* x y) 2.0) (/ z 8.0))
0.064 * * [progress]: iteration 1 / 4
0.064 * * * [progress]: picking best candidate
0.071 * * * * [pick]: Picked  #<alt (λ (x y z) (- (/ (* x y) 2.0) (/ z 8.0)))>
0.071 * * * [progress]: localizing error
0.097 * * * [progress]: generating rewritten candidates
0.097 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.113 * * * [progress]: generating series expansions
0.113 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.113 * [backup-simplify]: Simplify (/ (* x y) 2.0) into (* 0.5 (* x y))
0.113 * [approximate]: Taking taylor expansion of (* 0.5 (* x y)) in (x y) around 0
0.113 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in y
0.113 * [taylor]: Taking taylor expansion of 0.5 in y
0.113 * [backup-simplify]: Simplify 0.5 into 0.5
0.113 * [taylor]: Taking taylor expansion of (* x y) in y
0.113 * [taylor]: Taking taylor expansion of x in y
0.113 * [backup-simplify]: Simplify x into x
0.113 * [taylor]: Taking taylor expansion of y in y
0.113 * [backup-simplify]: Simplify 0 into 0
0.113 * [backup-simplify]: Simplify 1 into 1
0.113 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in x
0.113 * [taylor]: Taking taylor expansion of 0.5 in x
0.113 * [backup-simplify]: Simplify 0.5 into 0.5
0.113 * [taylor]: Taking taylor expansion of (* x y) in x
0.113 * [taylor]: Taking taylor expansion of x in x
0.113 * [backup-simplify]: Simplify 0 into 0
0.113 * [backup-simplify]: Simplify 1 into 1
0.113 * [taylor]: Taking taylor expansion of y in x
0.113 * [backup-simplify]: Simplify y into y
0.113 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in x
0.114 * [taylor]: Taking taylor expansion of 0.5 in x
0.114 * [backup-simplify]: Simplify 0.5 into 0.5
0.114 * [taylor]: Taking taylor expansion of (* x y) in x
0.114 * [taylor]: Taking taylor expansion of x in x
0.114 * [backup-simplify]: Simplify 0 into 0
0.114 * [backup-simplify]: Simplify 1 into 1
0.114 * [taylor]: Taking taylor expansion of y in x
0.114 * [backup-simplify]: Simplify y into y
0.114 * [backup-simplify]: Simplify (* 0 y) into 0
0.115 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.115 * [taylor]: Taking taylor expansion of 0 in y
0.115 * [backup-simplify]: Simplify 0 into 0
0.115 * [backup-simplify]: Simplify 0 into 0
0.115 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.116 * [backup-simplify]: Simplify (+ (* 0.5 y) (* 0 0)) into (* 0.5 y)
0.116 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.116 * [taylor]: Taking taylor expansion of 0.5 in y
0.116 * [backup-simplify]: Simplify 0.5 into 0.5
0.116 * [taylor]: Taking taylor expansion of y in y
0.116 * [backup-simplify]: Simplify 0 into 0
0.116 * [backup-simplify]: Simplify 1 into 1
0.116 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.116 * [backup-simplify]: Simplify 0 into 0
0.116 * [backup-simplify]: Simplify 0 into 0
0.117 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.118 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 y) (* 0 0))) into 0
0.118 * [taylor]: Taking taylor expansion of 0 in y
0.118 * [backup-simplify]: Simplify 0 into 0
0.118 * [backup-simplify]: Simplify 0 into 0
0.120 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
0.120 * [backup-simplify]: Simplify 0.5 into 0.5
0.120 * [backup-simplify]: Simplify 0 into 0
0.121 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.121 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 y) (* 0 0)))) into 0
0.121 * [taylor]: Taking taylor expansion of 0 in y
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify 0 into 0
0.123 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.124 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 y) (* 0 0))))) into 0
0.124 * [taylor]: Taking taylor expansion of 0 in y
0.124 * [backup-simplify]: Simplify 0 into 0
0.124 * [backup-simplify]: Simplify 0 into 0
0.124 * [backup-simplify]: Simplify (* 0.5 (* y x)) into (* 0.5 (* x y))
0.124 * [backup-simplify]: Simplify (/ (* (/ 1 x) (/ 1 y)) 2.0) into (/ 0.5 (* x y))
0.124 * [approximate]: Taking taylor expansion of (/ 0.5 (* x y)) in (x y) around 0
0.124 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in y
0.124 * [taylor]: Taking taylor expansion of 0.5 in y
0.124 * [backup-simplify]: Simplify 0.5 into 0.5
0.124 * [taylor]: Taking taylor expansion of (* x y) in y
0.124 * [taylor]: Taking taylor expansion of x in y
0.124 * [backup-simplify]: Simplify x into x
0.124 * [taylor]: Taking taylor expansion of y in y
0.124 * [backup-simplify]: Simplify 0 into 0
0.124 * [backup-simplify]: Simplify 1 into 1
0.124 * [backup-simplify]: Simplify (* x 0) into 0
0.125 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.125 * [backup-simplify]: Simplify (/ 0.5 x) into (/ 0.5 x)
0.125 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.125 * [taylor]: Taking taylor expansion of 0.5 in x
0.125 * [backup-simplify]: Simplify 0.5 into 0.5
0.125 * [taylor]: Taking taylor expansion of (* x y) in x
0.125 * [taylor]: Taking taylor expansion of x in x
0.125 * [backup-simplify]: Simplify 0 into 0
0.125 * [backup-simplify]: Simplify 1 into 1
0.125 * [taylor]: Taking taylor expansion of y in x
0.125 * [backup-simplify]: Simplify y into y
0.125 * [backup-simplify]: Simplify (* 0 y) into 0
0.125 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.125 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.125 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.125 * [taylor]: Taking taylor expansion of 0.5 in x
0.125 * [backup-simplify]: Simplify 0.5 into 0.5
0.125 * [taylor]: Taking taylor expansion of (* x y) in x
0.125 * [taylor]: Taking taylor expansion of x in x
0.125 * [backup-simplify]: Simplify 0 into 0
0.125 * [backup-simplify]: Simplify 1 into 1
0.125 * [taylor]: Taking taylor expansion of y in x
0.125 * [backup-simplify]: Simplify y into y
0.125 * [backup-simplify]: Simplify (* 0 y) into 0
0.126 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.126 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.126 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y
0.126 * [taylor]: Taking taylor expansion of 0.5 in y
0.126 * [backup-simplify]: Simplify 0.5 into 0.5
0.126 * [taylor]: Taking taylor expansion of y in y
0.126 * [backup-simplify]: Simplify 0 into 0
0.126 * [backup-simplify]: Simplify 1 into 1
0.126 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5
0.126 * [backup-simplify]: Simplify 0.5 into 0.5
0.127 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.127 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)))) into 0
0.127 * [taylor]: Taking taylor expansion of 0 in y
0.127 * [backup-simplify]: Simplify 0 into 0
0.127 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0
0.127 * [backup-simplify]: Simplify 0 into 0
0.128 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.128 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 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
0.129 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.129 * [backup-simplify]: Simplify 0 into 0
0.130 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.130 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.130 * [taylor]: Taking taylor expansion of 0 in y
0.130 * [backup-simplify]: Simplify 0 into 0
0.130 * [backup-simplify]: Simplify 0 into 0
0.130 * [backup-simplify]: Simplify 0 into 0
0.131 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.131 * [backup-simplify]: Simplify 0 into 0
0.132 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (/ 1 y)) (/ 1 (/ 1 x)))) into (* 0.5 (* x y))
0.132 * [backup-simplify]: Simplify (/ (* (/ 1 (- x)) (/ 1 (- y))) 2.0) into (/ 0.5 (* x y))
0.132 * [approximate]: Taking taylor expansion of (/ 0.5 (* x y)) in (x y) around 0
0.132 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in y
0.132 * [taylor]: Taking taylor expansion of 0.5 in y
0.132 * [backup-simplify]: Simplify 0.5 into 0.5
0.132 * [taylor]: Taking taylor expansion of (* x y) in y
0.132 * [taylor]: Taking taylor expansion of x in y
0.132 * [backup-simplify]: Simplify x into x
0.132 * [taylor]: Taking taylor expansion of y in y
0.132 * [backup-simplify]: Simplify 0 into 0
0.132 * [backup-simplify]: Simplify 1 into 1
0.132 * [backup-simplify]: Simplify (* x 0) into 0
0.132 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.132 * [backup-simplify]: Simplify (/ 0.5 x) into (/ 0.5 x)
0.132 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.132 * [taylor]: Taking taylor expansion of 0.5 in x
0.132 * [backup-simplify]: Simplify 0.5 into 0.5
0.132 * [taylor]: Taking taylor expansion of (* x y) in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.132 * [backup-simplify]: Simplify 0 into 0
0.132 * [backup-simplify]: Simplify 1 into 1
0.132 * [taylor]: Taking taylor expansion of y in x
0.132 * [backup-simplify]: Simplify y into y
0.132 * [backup-simplify]: Simplify (* 0 y) into 0
0.133 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.133 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.133 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.133 * [taylor]: Taking taylor expansion of 0.5 in x
0.133 * [backup-simplify]: Simplify 0.5 into 0.5
0.133 * [taylor]: Taking taylor expansion of (* x y) in x
0.133 * [taylor]: Taking taylor expansion of x in x
0.133 * [backup-simplify]: Simplify 0 into 0
0.133 * [backup-simplify]: Simplify 1 into 1
0.133 * [taylor]: Taking taylor expansion of y in x
0.133 * [backup-simplify]: Simplify y into y
0.133 * [backup-simplify]: Simplify (* 0 y) into 0
0.133 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.133 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.133 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y
0.133 * [taylor]: Taking taylor expansion of 0.5 in y
0.133 * [backup-simplify]: Simplify 0.5 into 0.5
0.133 * [taylor]: Taking taylor expansion of y in y
0.133 * [backup-simplify]: Simplify 0 into 0
0.133 * [backup-simplify]: Simplify 1 into 1
0.134 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5
0.134 * [backup-simplify]: Simplify 0.5 into 0.5
0.134 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.134 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)))) into 0
0.134 * [taylor]: Taking taylor expansion of 0 in y
0.134 * [backup-simplify]: Simplify 0 into 0
0.135 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0
0.135 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.136 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.136 * [taylor]: Taking taylor expansion of 0 in y
0.136 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.136 * [backup-simplify]: Simplify 0 into 0
0.137 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.137 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.137 * [taylor]: Taking taylor expansion of 0 in y
0.137 * [backup-simplify]: Simplify 0 into 0
0.137 * [backup-simplify]: Simplify 0 into 0
0.137 * [backup-simplify]: Simplify 0 into 0
0.138 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.138 * [backup-simplify]: Simplify 0 into 0
0.138 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (/ 1 (- y))) (/ 1 (/ 1 (- x))))) into (* 0.5 (* x y))
0.138 * * * [progress]: simplifying candidates
0.139 * [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))
0.139 * * [simplify]: iteration 0: 52 enodes
0.153 * * [simplify]: iteration 1: 125 enodes
0.185 * * [simplify]: iteration 2: 650 enodes
0.644 * * [simplify]: iteration complete: 5000 enodes
0.644 * * [simplify]: Extracting #0: cost 23 inf + 0
0.645 * * [simplify]: Extracting #1: cost 538 inf + 1
0.651 * * [simplify]: Extracting #2: cost 1551 inf + 4621
0.686 * * [simplify]: Extracting #3: cost 1039 inf + 119232
0.741 * * [simplify]: Extracting #4: cost 21 inf + 230890
0.790 * * [simplify]: Extracting #5: cost 0 inf + 234181
0.849 * [simplify]: Simplified to:
  (expm1 (/ (* y x) 2.0))
  (log1p (/ (* y x) 2.0))
  (log (/ (* y x) 2.0))
  (log (/ (* y x) 2.0))
  (log (/ (* y x) 2.0))
  (exp (/ (* 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 x) 2.0))
  (* (cbrt (/ (* y x) 2.0)) (cbrt (/ (* y x) 2.0)))
  (cbrt (/ (* y x) 2.0))
  (* (* (/ (* y x) 2.0) (/ (* y x) 2.0)) (/ (* y x) 2.0))
  (sqrt (/ (* y x) 2.0))
  (sqrt (/ (* y x) 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
  (/ y 2.0)
  (/ 1 2.0)
  (/ (/ 2.0 x) y)
  (/ (/ (* x y) (cbrt 2.0)) (cbrt 2.0))
  (* (/ x (sqrt 2.0)) y)
  (* y x)
  (/ 2.0 y)
  (* y (* x 0.5))
  (* y (* x 0.5))
  (* y (* x 0.5))
0.850 * * * [progress]: adding candidates to table
0.991 * [progress]: [Phase 3 of 3] Extracting.
0.996 * [simplify]: Simplifying:
  (- (/ (* x y) 2.0) (/ z 8.0))
0.996 * * [simplify]: iteration 0: 9 enodes
0.996 * * [simplify]: iteration 1: 10 enodes
0.997 * * [simplify]: iteration complete: 10 enodes
0.997 * * [simplify]: Extracting #0: cost 1 inf + 0
0.997 * * [simplify]: Extracting #1: cost 3 inf + 0
0.997 * * [simplify]: Extracting #2: cost 7 inf + 0
0.997 * * [simplify]: Extracting #3: cost 5 inf + 45
0.997 * * [simplify]: Extracting #4: cost 3 inf + 47
0.997 * * [simplify]: Extracting #5: cost 0 inf + 337
0.997 * [simplify]: Simplified to:
  (- (/ (* x y) 2.0) (/ z 8.0))
2.179 * [regime-testing]: Baseline error score: 0.03052505625721244
2.188 * [regime-testing]: Oracle error score: 0.03052505625721244
2.188 * [regime-testing]: End program error score: 0.03052505625721244