43.793 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.016 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.020 * [simplify]: Simplifying:
  (- (/ (* x y) 2.0) (/ z 8.0))
0.020 * * [simplify]: iteration 0: 9 enodes
0.021 * * [simplify]: iteration 1: 14 enodes
0.023 * * [simplify]: iteration 2: 19 enodes
0.027 * * [simplify]: iteration 3: 22 enodes
0.031 * * [simplify]: iteration 4: 24 enodes
0.035 * * [simplify]: iteration 5: 25 enodes
0.044 * * [simplify]: iteration complete: 25 enodes
0.044 * * [simplify]: Extracting #0: cost 1 inf + 0
0.044 * * [simplify]: Extracting #1: cost 4 inf + 0
0.044 * * [simplify]: Extracting #2: cost 15 inf + 0
0.045 * * [simplify]: Extracting #3: cost 6 inf + 213
0.045 * * [simplify]: Extracting #4: cost 0 inf + 628
0.045 * [simplify]: Simplified to:
  (- (/ (* x y) 2.0) (/ z 8.0))
0.046 * * [progress]: iteration 1 / 4
0.046 * * * [progress]: picking best candidate
0.051 * * * * [pick]: Picked  #<alt (λ (x y z) (- (/ (* x y) 2.0) (/ z 8.0)))>
0.051 * * * [progress]: localizing error
0.061 * * * [progress]: generating rewritten candidates
0.061 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.070 * * * [progress]: generating series expansions
0.070 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.070 * [backup-simplify]: Simplify (/ (* x y) 2.0) into (* 0.5 (* x y))
0.070 * [approximate]: Taking taylor expansion of (* 0.5 (* x y)) in (x y) around 0
0.070 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in y
0.070 * [taylor]: Taking taylor expansion of 0.5 in y
0.070 * [backup-simplify]: Simplify 0.5 into 0.5
0.070 * [taylor]: Taking taylor expansion of (* x y) in y
0.070 * [taylor]: Taking taylor expansion of x in y
0.070 * [backup-simplify]: Simplify x into x
0.070 * [taylor]: Taking taylor expansion of y in y
0.070 * [backup-simplify]: Simplify 0 into 0
0.070 * [backup-simplify]: Simplify 1 into 1
0.070 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in x
0.070 * [taylor]: Taking taylor expansion of 0.5 in x
0.070 * [backup-simplify]: Simplify 0.5 into 0.5
0.070 * [taylor]: Taking taylor expansion of (* x y) in x
0.070 * [taylor]: Taking taylor expansion of x in x
0.070 * [backup-simplify]: Simplify 0 into 0
0.070 * [backup-simplify]: Simplify 1 into 1
0.070 * [taylor]: Taking taylor expansion of y in x
0.070 * [backup-simplify]: Simplify y into y
0.070 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in x
0.070 * [taylor]: Taking taylor expansion of 0.5 in x
0.070 * [backup-simplify]: Simplify 0.5 into 0.5
0.070 * [taylor]: Taking taylor expansion of (* x y) in x
0.070 * [taylor]: Taking taylor expansion of x in x
0.070 * [backup-simplify]: Simplify 0 into 0
0.070 * [backup-simplify]: Simplify 1 into 1
0.070 * [taylor]: Taking taylor expansion of y in x
0.070 * [backup-simplify]: Simplify y into y
0.070 * [backup-simplify]: Simplify (* 0 y) into 0
0.071 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.071 * [taylor]: Taking taylor expansion of 0 in y
0.071 * [backup-simplify]: Simplify 0 into 0
0.071 * [backup-simplify]: Simplify 0 into 0
0.072 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.072 * [backup-simplify]: Simplify (+ (* 0.5 y) (* 0 0)) into (* 0.5 y)
0.072 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.072 * [taylor]: Taking taylor expansion of 0.5 in y
0.072 * [backup-simplify]: Simplify 0.5 into 0.5
0.072 * [taylor]: Taking taylor expansion of y in y
0.072 * [backup-simplify]: Simplify 0 into 0
0.072 * [backup-simplify]: Simplify 1 into 1
0.072 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.072 * [backup-simplify]: Simplify 0 into 0
0.072 * [backup-simplify]: Simplify 0 into 0
0.073 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.074 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 y) (* 0 0))) into 0
0.074 * [taylor]: Taking taylor expansion of 0 in y
0.074 * [backup-simplify]: Simplify 0 into 0
0.074 * [backup-simplify]: Simplify 0 into 0
0.075 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
0.075 * [backup-simplify]: Simplify 0.5 into 0.5
0.075 * [backup-simplify]: Simplify 0 into 0
0.076 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.077 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 y) (* 0 0)))) into 0
0.077 * [taylor]: Taking taylor expansion of 0 in y
0.077 * [backup-simplify]: Simplify 0 into 0
0.077 * [backup-simplify]: Simplify 0 into 0
0.077 * [backup-simplify]: Simplify 0 into 0
0.078 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
0.078 * [backup-simplify]: Simplify 0 into 0
0.078 * [backup-simplify]: Simplify 0 into 0
0.079 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.080 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 y) (* 0 0))))) into 0
0.080 * [taylor]: Taking taylor expansion of 0 in y
0.080 * [backup-simplify]: Simplify 0 into 0
0.080 * [backup-simplify]: Simplify 0 into 0
0.080 * [backup-simplify]: Simplify (* 0.5 (* y x)) into (* 0.5 (* x y))
0.080 * [backup-simplify]: Simplify (/ (* (/ 1 x) (/ 1 y)) 2.0) into (/ 0.5 (* x y))
0.080 * [approximate]: Taking taylor expansion of (/ 0.5 (* x y)) in (x y) around 0
0.080 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in y
0.080 * [taylor]: Taking taylor expansion of 0.5 in y
0.080 * [backup-simplify]: Simplify 0.5 into 0.5
0.080 * [taylor]: Taking taylor expansion of (* x y) in y
0.080 * [taylor]: Taking taylor expansion of x in y
0.081 * [backup-simplify]: Simplify x into x
0.081 * [taylor]: Taking taylor expansion of y in y
0.081 * [backup-simplify]: Simplify 0 into 0
0.081 * [backup-simplify]: Simplify 1 into 1
0.081 * [backup-simplify]: Simplify (* x 0) into 0
0.081 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.081 * [backup-simplify]: Simplify (/ 0.5 x) into (/ 0.5 x)
0.081 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.081 * [taylor]: Taking taylor expansion of 0.5 in x
0.081 * [backup-simplify]: Simplify 0.5 into 0.5
0.081 * [taylor]: Taking taylor expansion of (* x y) in x
0.081 * [taylor]: Taking taylor expansion of x in x
0.081 * [backup-simplify]: Simplify 0 into 0
0.081 * [backup-simplify]: Simplify 1 into 1
0.081 * [taylor]: Taking taylor expansion of y in x
0.081 * [backup-simplify]: Simplify y into y
0.081 * [backup-simplify]: Simplify (* 0 y) into 0
0.082 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.082 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.082 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.082 * [taylor]: Taking taylor expansion of 0.5 in x
0.082 * [backup-simplify]: Simplify 0.5 into 0.5
0.082 * [taylor]: Taking taylor expansion of (* x y) in x
0.082 * [taylor]: Taking taylor expansion of x in x
0.082 * [backup-simplify]: Simplify 0 into 0
0.082 * [backup-simplify]: Simplify 1 into 1
0.082 * [taylor]: Taking taylor expansion of y in x
0.082 * [backup-simplify]: Simplify y into y
0.082 * [backup-simplify]: Simplify (* 0 y) into 0
0.082 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.082 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.082 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y
0.082 * [taylor]: Taking taylor expansion of 0.5 in y
0.082 * [backup-simplify]: Simplify 0.5 into 0.5
0.082 * [taylor]: Taking taylor expansion of y in y
0.082 * [backup-simplify]: Simplify 0 into 0
0.082 * [backup-simplify]: Simplify 1 into 1
0.083 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5
0.083 * [backup-simplify]: Simplify 0.5 into 0.5
0.084 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.084 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)))) into 0
0.084 * [taylor]: Taking taylor expansion of 0 in y
0.084 * [backup-simplify]: Simplify 0 into 0
0.084 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0
0.084 * [backup-simplify]: Simplify 0 into 0
0.085 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.086 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.086 * [taylor]: Taking taylor expansion of 0 in y
0.086 * [backup-simplify]: Simplify 0 into 0
0.086 * [backup-simplify]: Simplify 0 into 0
0.086 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.087 * [backup-simplify]: Simplify 0 into 0
0.088 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.088 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.088 * [taylor]: Taking taylor expansion of 0 in y
0.088 * [backup-simplify]: Simplify 0 into 0
0.088 * [backup-simplify]: Simplify 0 into 0
0.088 * [backup-simplify]: Simplify 0 into 0
0.089 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.089 * [backup-simplify]: Simplify 0 into 0
0.089 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (/ 1 y)) (/ 1 (/ 1 x)))) into (* 0.5 (* x y))
0.089 * [backup-simplify]: Simplify (/ (* (/ 1 (- x)) (/ 1 (- y))) 2.0) into (/ 0.5 (* x y))
0.089 * [approximate]: Taking taylor expansion of (/ 0.5 (* x y)) in (x y) around 0
0.089 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in y
0.089 * [taylor]: Taking taylor expansion of 0.5 in y
0.089 * [backup-simplify]: Simplify 0.5 into 0.5
0.089 * [taylor]: Taking taylor expansion of (* x y) in y
0.089 * [taylor]: Taking taylor expansion of x in y
0.089 * [backup-simplify]: Simplify x into x
0.089 * [taylor]: Taking taylor expansion of y in y
0.089 * [backup-simplify]: Simplify 0 into 0
0.089 * [backup-simplify]: Simplify 1 into 1
0.089 * [backup-simplify]: Simplify (* x 0) into 0
0.090 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.090 * [backup-simplify]: Simplify (/ 0.5 x) into (/ 0.5 x)
0.090 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.090 * [taylor]: Taking taylor expansion of 0.5 in x
0.090 * [backup-simplify]: Simplify 0.5 into 0.5
0.090 * [taylor]: Taking taylor expansion of (* x y) in x
0.090 * [taylor]: Taking taylor expansion of x in x
0.090 * [backup-simplify]: Simplify 0 into 0
0.090 * [backup-simplify]: Simplify 1 into 1
0.090 * [taylor]: Taking taylor expansion of y in x
0.090 * [backup-simplify]: Simplify y into y
0.090 * [backup-simplify]: Simplify (* 0 y) into 0
0.090 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.090 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.090 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.090 * [taylor]: Taking taylor expansion of 0.5 in x
0.090 * [backup-simplify]: Simplify 0.5 into 0.5
0.090 * [taylor]: Taking taylor expansion of (* x y) in x
0.090 * [taylor]: Taking taylor expansion of x in x
0.091 * [backup-simplify]: Simplify 0 into 0
0.091 * [backup-simplify]: Simplify 1 into 1
0.091 * [taylor]: Taking taylor expansion of y in x
0.091 * [backup-simplify]: Simplify y into y
0.091 * [backup-simplify]: Simplify (* 0 y) into 0
0.091 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.091 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.091 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y
0.091 * [taylor]: Taking taylor expansion of 0.5 in y
0.091 * [backup-simplify]: Simplify 0.5 into 0.5
0.091 * [taylor]: Taking taylor expansion of y in y
0.091 * [backup-simplify]: Simplify 0 into 0
0.091 * [backup-simplify]: Simplify 1 into 1
0.092 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5
0.092 * [backup-simplify]: Simplify 0.5 into 0.5
0.092 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.092 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)))) into 0
0.092 * [taylor]: Taking taylor expansion of 0 in y
0.092 * [backup-simplify]: Simplify 0 into 0
0.093 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0
0.093 * [backup-simplify]: Simplify 0 into 0
0.094 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.094 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.094 * [taylor]: Taking taylor expansion of 0 in y
0.094 * [backup-simplify]: Simplify 0 into 0
0.094 * [backup-simplify]: Simplify 0 into 0
0.095 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.095 * [backup-simplify]: Simplify 0 into 0
0.096 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.096 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.097 * [taylor]: Taking taylor expansion of 0 in y
0.097 * [backup-simplify]: Simplify 0 into 0
0.097 * [backup-simplify]: Simplify 0 into 0
0.097 * [backup-simplify]: Simplify 0 into 0
0.097 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.097 * [backup-simplify]: Simplify 0 into 0
0.098 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (/ 1 (- y))) (/ 1 (/ 1 (- x))))) into (* 0.5 (* x y))
0.098 * * * [progress]: simplifying candidates
0.098 * [simplify]: Simplifying:
  (- (+ (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))
0.099 * * [simplify]: iteration 0: 50 enodes
0.113 * * [simplify]: iteration 1: 124 enodes
0.167 * * [simplify]: iteration 2: 465 enodes
0.521 * * [simplify]: iteration 3: 2242 enodes
1.258 * * [simplify]: iteration complete: 5002 enodes
1.258 * * [simplify]: Extracting #0: cost 21 inf + 0
1.266 * * [simplify]: Extracting #1: cost 1073 inf + 1
1.273 * * [simplify]: Extracting #2: cost 1687 inf + 9673
1.299 * * [simplify]: Extracting #3: cost 731 inf + 142449
1.363 * * [simplify]: Extracting #4: cost 40 inf + 257857
1.446 * * [simplify]: Extracting #5: cost 0 inf + 268796
1.537 * [simplify]: Simplified to:
  (log (/ (* x y) 2.0))
  (log (/ (* x y) 2.0))
  (log (/ (* x y) 2.0))
  (exp (/ (* x y) 2.0))
  (* (* (/ 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 y) 2.0)) (cbrt (/ (* x y) 2.0)))
  (cbrt (/ (* x y) 2.0))
  (* (* (/ x (/ 2.0 y)) (/ x (/ 2.0 y))) (/ x (/ 2.0 y)))
  (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
  (/ y 2.0)
  (/ 1 2.0)
  (/ (/ 2.0 x) y)
  (* (/ x (cbrt 2.0)) (/ y (cbrt 2.0)))
  (/ (* x y) (sqrt 2.0))
  (* x y)
  (/ 2.0 y)
  (* 0.5 (* x y))
  (* 0.5 (* x y))
  (* 0.5 (* x y))
1.539 * * * [progress]: adding candidates to table
1.667 * [progress]: [Phase 3 of 3] Extracting.
1.673 * [simplify]: Simplifying:
  (- (/ (* x y) 2.0) (/ z 8.0))
1.673 * * [simplify]: iteration 0: 9 enodes
1.673 * * [simplify]: iteration 1: 10 enodes
1.674 * * [simplify]: iteration complete: 10 enodes
1.674 * * [simplify]: Extracting #0: cost 1 inf + 0
1.674 * * [simplify]: Extracting #1: cost 3 inf + 0
1.674 * * [simplify]: Extracting #2: cost 7 inf + 0
1.674 * * [simplify]: Extracting #3: cost 5 inf + 45
1.674 * * [simplify]: Extracting #4: cost 3 inf + 47
1.674 * * [simplify]: Extracting #5: cost 0 inf + 337
1.674 * [simplify]: Simplified to:
  (- (/ (* x y) 2.0) (/ z 8.0))
2.670 * [regime-testing]: Baseline error score: 0.021450801662797996
2.678 * [regime-testing]: Oracle error score: 0.021450801662797996
2.678 * [regime-testing]: End program error score: 0.021450801662797996