5.326 * [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:
  (/ (* x y) 2.0)
0.014 * [simplify]: Sending expressions to egg_math:
 (/ (* h0 h1) h2)
0.016 * * [simplify]: iteration  0 :  8  enodes  (cost  2 )
0.018 * * [simplify]: iteration  1 :  12  enodes  (cost  2 )
0.019 * * [simplify]: iteration  2 :  15  enodes  (cost  2 )
0.020 * * [simplify]: iteration  3 :  16  enodes  (cost  2 )
0.021 * * [simplify]: iteration  4 :  16  enodes  (cost  2 )
0.022 * * [progress]: iteration 1 / 4
0.022 * * * [progress]: picking best candidate
0.023 * * * * [pick]: Picked  #<alt (λ (x y) (/ (* x y) 2.0))>
0.023 * * * [progress]: localizing error
0.027 * * * [progress]: generating rewritten candidates
0.027 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.037 * * * [progress]: generating series expansions
0.037 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.037 * [backup-simplify]: Simplify (/ (* x y) 2.0) into (* 0.5 (* x y))
0.037 * [approximate]: Taking taylor expansion of (* 0.5 (* x y)) in (x y) around 0
0.037 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in y
0.037 * [taylor]: Taking taylor expansion of 0.5 in y
0.037 * [backup-simplify]: Simplify 0.5 into 0.5
0.037 * [taylor]: Taking taylor expansion of (* x y) in y
0.037 * [taylor]: Taking taylor expansion of x in y
0.037 * [backup-simplify]: Simplify x into x
0.037 * [taylor]: Taking taylor expansion of y in y
0.037 * [backup-simplify]: Simplify 0 into 0
0.037 * [backup-simplify]: Simplify 1 into 1
0.037 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in x
0.037 * [taylor]: Taking taylor expansion of 0.5 in x
0.037 * [backup-simplify]: Simplify 0.5 into 0.5
0.037 * [taylor]: Taking taylor expansion of (* x y) in x
0.037 * [taylor]: Taking taylor expansion of x in x
0.037 * [backup-simplify]: Simplify 0 into 0
0.037 * [backup-simplify]: Simplify 1 into 1
0.037 * [taylor]: Taking taylor expansion of y in x
0.037 * [backup-simplify]: Simplify y into y
0.037 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in x
0.037 * [taylor]: Taking taylor expansion of 0.5 in x
0.037 * [backup-simplify]: Simplify 0.5 into 0.5
0.037 * [taylor]: Taking taylor expansion of (* x y) in x
0.037 * [taylor]: Taking taylor expansion of x in x
0.037 * [backup-simplify]: Simplify 0 into 0
0.037 * [backup-simplify]: Simplify 1 into 1
0.037 * [taylor]: Taking taylor expansion of y in x
0.038 * [backup-simplify]: Simplify y into y
0.038 * [backup-simplify]: Simplify (* 0 y) into 0
0.038 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.038 * [taylor]: Taking taylor expansion of 0 in y
0.038 * [backup-simplify]: Simplify 0 into 0
0.038 * [backup-simplify]: Simplify 0 into 0
0.038 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.039 * [backup-simplify]: Simplify (+ (* 0.5 y) (* 0 0)) into (* 0.5 y)
0.039 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.039 * [taylor]: Taking taylor expansion of 0.5 in y
0.039 * [backup-simplify]: Simplify 0.5 into 0.5
0.039 * [taylor]: Taking taylor expansion of y in y
0.039 * [backup-simplify]: Simplify 0 into 0
0.039 * [backup-simplify]: Simplify 1 into 1
0.039 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.039 * [backup-simplify]: Simplify 0 into 0
0.039 * [backup-simplify]: Simplify 0 into 0
0.039 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.040 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 y) (* 0 0))) into 0
0.040 * [taylor]: Taking taylor expansion of 0 in y
0.040 * [backup-simplify]: Simplify 0 into 0
0.040 * [backup-simplify]: Simplify 0 into 0
0.041 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
0.041 * [backup-simplify]: Simplify 0.5 into 0.5
0.041 * [backup-simplify]: Simplify 0 into 0
0.041 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.042 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 y) (* 0 0)))) into 0
0.042 * [taylor]: Taking taylor expansion of 0 in y
0.042 * [backup-simplify]: Simplify 0 into 0
0.042 * [backup-simplify]: Simplify 0 into 0
0.042 * [backup-simplify]: Simplify 0 into 0
0.043 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
0.043 * [backup-simplify]: Simplify 0 into 0
0.043 * [backup-simplify]: Simplify 0 into 0
0.044 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.044 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 y) (* 0 0))))) into 0
0.045 * [taylor]: Taking taylor expansion of 0 in y
0.045 * [backup-simplify]: Simplify 0 into 0
0.045 * [backup-simplify]: Simplify 0 into 0
0.045 * [backup-simplify]: Simplify (* 0.5 (* y x)) into (* 0.5 (* x y))
0.045 * [backup-simplify]: Simplify (/ (* (/ 1 x) (/ 1 y)) 2.0) into (/ 0.5 (* x y))
0.045 * [approximate]: Taking taylor expansion of (/ 0.5 (* x y)) in (x y) around 0
0.045 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in y
0.045 * [taylor]: Taking taylor expansion of 0.5 in y
0.045 * [backup-simplify]: Simplify 0.5 into 0.5
0.045 * [taylor]: Taking taylor expansion of (* x y) in y
0.045 * [taylor]: Taking taylor expansion of x in y
0.045 * [backup-simplify]: Simplify x into x
0.045 * [taylor]: Taking taylor expansion of y in y
0.045 * [backup-simplify]: Simplify 0 into 0
0.045 * [backup-simplify]: Simplify 1 into 1
0.045 * [backup-simplify]: Simplify (* x 0) into 0
0.045 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.045 * [backup-simplify]: Simplify (/ 0.5 x) into (/ 0.5 x)
0.045 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.045 * [taylor]: Taking taylor expansion of 0.5 in x
0.045 * [backup-simplify]: Simplify 0.5 into 0.5
0.045 * [taylor]: Taking taylor expansion of (* x y) in x
0.045 * [taylor]: Taking taylor expansion of x in x
0.045 * [backup-simplify]: Simplify 0 into 0
0.045 * [backup-simplify]: Simplify 1 into 1
0.045 * [taylor]: Taking taylor expansion of y in x
0.045 * [backup-simplify]: Simplify y into y
0.045 * [backup-simplify]: Simplify (* 0 y) into 0
0.046 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.046 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.046 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.046 * [taylor]: Taking taylor expansion of 0.5 in x
0.046 * [backup-simplify]: Simplify 0.5 into 0.5
0.046 * [taylor]: Taking taylor expansion of (* x y) in x
0.046 * [taylor]: Taking taylor expansion of x in x
0.046 * [backup-simplify]: Simplify 0 into 0
0.046 * [backup-simplify]: Simplify 1 into 1
0.046 * [taylor]: Taking taylor expansion of y in x
0.046 * [backup-simplify]: Simplify y into y
0.046 * [backup-simplify]: Simplify (* 0 y) into 0
0.046 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.046 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.046 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y
0.046 * [taylor]: Taking taylor expansion of 0.5 in y
0.046 * [backup-simplify]: Simplify 0.5 into 0.5
0.046 * [taylor]: Taking taylor expansion of y in y
0.046 * [backup-simplify]: Simplify 0 into 0
0.046 * [backup-simplify]: Simplify 1 into 1
0.047 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5
0.047 * [backup-simplify]: Simplify 0.5 into 0.5
0.047 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.047 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)))) into 0
0.047 * [taylor]: Taking taylor expansion of 0 in y
0.047 * [backup-simplify]: Simplify 0 into 0
0.048 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0
0.048 * [backup-simplify]: Simplify 0 into 0
0.048 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.048 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.048 * [taylor]: Taking taylor expansion of 0 in y
0.048 * [backup-simplify]: Simplify 0 into 0
0.048 * [backup-simplify]: Simplify 0 into 0
0.049 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.049 * [backup-simplify]: Simplify 0 into 0
0.050 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.050 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.050 * [taylor]: Taking taylor expansion of 0 in y
0.050 * [backup-simplify]: Simplify 0 into 0
0.050 * [backup-simplify]: Simplify 0 into 0
0.050 * [backup-simplify]: Simplify 0 into 0
0.051 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.051 * [backup-simplify]: Simplify 0 into 0
0.051 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (/ 1 y)) (/ 1 (/ 1 x)))) into (* 0.5 (* x y))
0.051 * [backup-simplify]: Simplify (/ (* (/ 1 (- x)) (/ 1 (- y))) 2.0) into (/ 0.5 (* x y))
0.051 * [approximate]: Taking taylor expansion of (/ 0.5 (* x y)) in (x y) around 0
0.051 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in y
0.051 * [taylor]: Taking taylor expansion of 0.5 in y
0.051 * [backup-simplify]: Simplify 0.5 into 0.5
0.051 * [taylor]: Taking taylor expansion of (* x y) in y
0.051 * [taylor]: Taking taylor expansion of x in y
0.051 * [backup-simplify]: Simplify x into x
0.051 * [taylor]: Taking taylor expansion of y in y
0.051 * [backup-simplify]: Simplify 0 into 0
0.051 * [backup-simplify]: Simplify 1 into 1
0.051 * [backup-simplify]: Simplify (* x 0) into 0
0.051 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.051 * [backup-simplify]: Simplify (/ 0.5 x) into (/ 0.5 x)
0.051 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.051 * [taylor]: Taking taylor expansion of 0.5 in x
0.051 * [backup-simplify]: Simplify 0.5 into 0.5
0.051 * [taylor]: Taking taylor expansion of (* x y) in x
0.051 * [taylor]: Taking taylor expansion of x in x
0.051 * [backup-simplify]: Simplify 0 into 0
0.051 * [backup-simplify]: Simplify 1 into 1
0.051 * [taylor]: Taking taylor expansion of y in x
0.051 * [backup-simplify]: Simplify y into y
0.052 * [backup-simplify]: Simplify (* 0 y) into 0
0.052 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.052 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.052 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.052 * [taylor]: Taking taylor expansion of 0.5 in x
0.052 * [backup-simplify]: Simplify 0.5 into 0.5
0.052 * [taylor]: Taking taylor expansion of (* x y) in x
0.052 * [taylor]: Taking taylor expansion of x in x
0.052 * [backup-simplify]: Simplify 0 into 0
0.052 * [backup-simplify]: Simplify 1 into 1
0.052 * [taylor]: Taking taylor expansion of y in x
0.052 * [backup-simplify]: Simplify y into y
0.052 * [backup-simplify]: Simplify (* 0 y) into 0
0.052 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.052 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.052 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y
0.052 * [taylor]: Taking taylor expansion of 0.5 in y
0.052 * [backup-simplify]: Simplify 0.5 into 0.5
0.052 * [taylor]: Taking taylor expansion of y in y
0.052 * [backup-simplify]: Simplify 0 into 0
0.052 * [backup-simplify]: Simplify 1 into 1
0.053 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5
0.053 * [backup-simplify]: Simplify 0.5 into 0.5
0.053 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.053 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)))) into 0
0.053 * [taylor]: Taking taylor expansion of 0 in y
0.053 * [backup-simplify]: Simplify 0 into 0
0.054 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0
0.054 * [backup-simplify]: Simplify 0 into 0
0.054 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.054 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.055 * [taylor]: Taking taylor expansion of 0 in y
0.055 * [backup-simplify]: Simplify 0 into 0
0.055 * [backup-simplify]: Simplify 0 into 0
0.055 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.055 * [backup-simplify]: Simplify 0 into 0
0.056 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.056 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.056 * [taylor]: Taking taylor expansion of 0 in y
0.056 * [backup-simplify]: Simplify 0 into 0
0.056 * [backup-simplify]: Simplify 0 into 0
0.056 * [backup-simplify]: Simplify 0 into 0
0.057 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.057 * [backup-simplify]: Simplify 0 into 0
0.057 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (/ 1 (- y))) (/ 1 (/ 1 (- x))))) into (* 0.5 (* x y))
0.057 * * * [progress]: simplifying candidates
0.057 * [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))
0.057 * [simplify]: Sending expressions to egg_math:
 (expm1 (/ (* h0 h1) h2))
 (log1p (/ (* h0 h1) h2))
 (- (+ (log h0) (log h1)) (log h2))
 (- (log (* h0 h1)) (log h2))
 (log (/ (* h0 h1) h2))
 (exp (/ (* h0 h1) h2))
 (/ (* (* (* h0 h0) h0) (* (* h1 h1) h1)) (* (* h2 h2) h2))
 (/ (* (* (* h0 h1) (* h0 h1)) (* h0 h1)) (* (* h2 h2) h2))
 (* (cbrt (/ (* h0 h1) h2)) (cbrt (/ (* h0 h1) h2)))
 (cbrt (/ (* h0 h1) h2))
 (* (* (/ (* h0 h1) h2) (/ (* h0 h1) h2)) (/ (* h0 h1) h2))
 (sqrt (/ (* h0 h1) h2))
 (sqrt (/ (* h0 h1) h2))
 (- (* h0 h1))
 (- h2)
 (/ h0 (* (cbrt h2) (cbrt h2)))
 (/ h1 (cbrt h2))
 (/ h0 (sqrt h2))
 (/ h1 (sqrt h2))
 (/ h0 1)
 (/ h1 h2)
 (/ 1 h2)
 (/ h2 (* h0 h1))
 (/ (* h0 h1) (* (cbrt h2) (cbrt h2)))
 (/ (* h0 h1) (sqrt h2))
 (/ (* h0 h1) 1)
 (/ h2 h1)
 (* h3 (* h0 h1))
 (* h3 (* h0 h1))
 (* h3 (* h0 h1))
0.060 * * [simplify]: iteration  0 :  118  enodes  (cost  91 )
0.063 * * [simplify]: iteration  1 :  538  enodes  (cost  76 )
0.072 * * [simplify]: iteration  2 :  2527  enodes  (cost  76 )
0.112 * * [simplify]: iteration  3 :  5001  enodes  (cost  76 )
0.113 * * * [progress]: adding candidates to table
0.152 * * [progress]: iteration 2 / 4
0.153 * * * [progress]: picking best candidate
0.153 * * * * [pick]: Picked  #<alt (λ (x y) (* x (/ y 2.0)))>
0.154 * * * [progress]: localizing error
0.157 * * * [progress]: generating rewritten candidates
0.157 * * * [progress]: generating series expansions
0.157 * * * [progress]: simplifying candidates
0.157 * [simplify]: Simplifying:
  
0.157 * [simplify]: Sending expressions to egg_math:
 
0.159 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.159 * * * [progress]: adding candidates to table
0.160 * [progress]: [Phase 3 of 3] Extracting.
0.161 * [simplify]: Simplifying:
  (* x (/ y 2.0))
0.161 * [simplify]: Sending expressions to egg_math:
 (* h0 (/ h1 h2))
0.161 * * [simplify]: iteration  0 :  6  enodes  (cost  2 )
0.161 * * [simplify]: iteration  1 :  6  enodes  (cost  2 )
0.534 * [regime-testing]: End program error score: 0.00025003125390673836