30.681 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
1.028 * * * [progress]: [2/2] Setting up program.
1.031 * [progress]: [Phase 2 of 3] Improving.
1.031 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (+ (/ x 2.0) (* y x)) z)
1.033 * * [simplify]: iteration  0 :  13  enodes  (cost  4 )
1.034 * * [simplify]: iteration  1 :  20  enodes  (cost  4 )
1.035 * * [simplify]: iteration  2 :  22  enodes  (cost  4 )
1.036 * * [simplify]: iteration  3 :  22  enodes  (cost  4 )
1.036 * [simplify]: Simplified to:
   (+ (+ (/ x 2.0) (* y x)) z)
1.037 * * [progress]: iteration 1 / 4
1.037 * * * [progress]: picking best candidate
1.039 * * * * [pick]: Picked  #<alt (λ (x y z) (+ (+ (/ x 2.0) (* y x)) z))>
1.039 * * * [progress]: localizing error
1.045 * * * [progress]: generating rewritten candidates
1.045 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
1.051 * * * [progress]: generating series expansions
1.051 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
1.051 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* x y)) in (x y) around 0
1.051 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* x y)) in y
1.051 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
1.051 * [taylor]: Taking taylor expansion of 0.5 in y
1.051 * [taylor]: Taking taylor expansion of x in y
1.051 * [taylor]: Taking taylor expansion of (* x y) in y
1.051 * [taylor]: Taking taylor expansion of x in y
1.052 * [taylor]: Taking taylor expansion of y in y
1.052 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* x y)) in x
1.052 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
1.052 * [taylor]: Taking taylor expansion of 0.5 in x
1.052 * [taylor]: Taking taylor expansion of x in x
1.052 * [taylor]: Taking taylor expansion of (* x y) in x
1.052 * [taylor]: Taking taylor expansion of x in x
1.052 * [taylor]: Taking taylor expansion of y in x
1.052 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* x y)) in x
1.052 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
1.052 * [taylor]: Taking taylor expansion of 0.5 in x
1.052 * [taylor]: Taking taylor expansion of x in x
1.052 * [taylor]: Taking taylor expansion of (* x y) in x
1.052 * [taylor]: Taking taylor expansion of x in x
1.052 * [taylor]: Taking taylor expansion of y in x
1.052 * [taylor]: Taking taylor expansion of 0 in y
1.052 * [taylor]: Taking taylor expansion of (+ y 0.5) in y
1.052 * [taylor]: Taking taylor expansion of y in y
1.052 * [taylor]: Taking taylor expansion of 0.5 in y
1.052 * [taylor]: Taking taylor expansion of 0 in y
1.052 * [taylor]: Taking taylor expansion of 0 in y
1.052 * [taylor]: Taking taylor expansion of 0 in y
1.053 * [approximate]: Taking taylor expansion of (+ (/ 1 (* x y)) (* 0.5 (/ 1 x))) in (x y) around 0
1.053 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (* 0.5 (/ 1 x))) in y
1.053 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
1.053 * [taylor]: Taking taylor expansion of (* x y) in y
1.053 * [taylor]: Taking taylor expansion of x in y
1.053 * [taylor]: Taking taylor expansion of y in y
1.053 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
1.053 * [taylor]: Taking taylor expansion of 0.5 in y
1.053 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.053 * [taylor]: Taking taylor expansion of x in y
1.053 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (* 0.5 (/ 1 x))) in x
1.053 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
1.053 * [taylor]: Taking taylor expansion of (* x y) in x
1.053 * [taylor]: Taking taylor expansion of x in x
1.053 * [taylor]: Taking taylor expansion of y in x
1.053 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
1.053 * [taylor]: Taking taylor expansion of 0.5 in x
1.053 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.053 * [taylor]: Taking taylor expansion of x in x
1.053 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (* 0.5 (/ 1 x))) in x
1.053 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
1.053 * [taylor]: Taking taylor expansion of (* x y) in x
1.053 * [taylor]: Taking taylor expansion of x in x
1.053 * [taylor]: Taking taylor expansion of y in x
1.053 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
1.053 * [taylor]: Taking taylor expansion of 0.5 in x
1.053 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.053 * [taylor]: Taking taylor expansion of x in x
1.053 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in y
1.053 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.053 * [taylor]: Taking taylor expansion of y in y
1.053 * [taylor]: Taking taylor expansion of 0.5 in y
1.053 * [taylor]: Taking taylor expansion of 0 in y
1.054 * [taylor]: Taking taylor expansion of 0 in y
1.054 * [taylor]: Taking taylor expansion of 0 in y
1.054 * [taylor]: Taking taylor expansion of 0 in y
1.055 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (* 0.5 (/ 1 x))) in (x y) around 0
1.055 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (* 0.5 (/ 1 x))) in y
1.055 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
1.055 * [taylor]: Taking taylor expansion of (* x y) in y
1.055 * [taylor]: Taking taylor expansion of x in y
1.055 * [taylor]: Taking taylor expansion of y in y
1.055 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
1.055 * [taylor]: Taking taylor expansion of 0.5 in y
1.055 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.055 * [taylor]: Taking taylor expansion of x in y
1.055 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (* 0.5 (/ 1 x))) in x
1.055 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
1.055 * [taylor]: Taking taylor expansion of (* x y) in x
1.055 * [taylor]: Taking taylor expansion of x in x
1.055 * [taylor]: Taking taylor expansion of y in x
1.055 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
1.055 * [taylor]: Taking taylor expansion of 0.5 in x
1.055 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.055 * [taylor]: Taking taylor expansion of x in x
1.055 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (* 0.5 (/ 1 x))) in x
1.055 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
1.055 * [taylor]: Taking taylor expansion of (* x y) in x
1.055 * [taylor]: Taking taylor expansion of x in x
1.055 * [taylor]: Taking taylor expansion of y in x
1.055 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
1.055 * [taylor]: Taking taylor expansion of 0.5 in x
1.055 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.055 * [taylor]: Taking taylor expansion of x in x
1.055 * [taylor]: Taking taylor expansion of (- (/ 1 y) 0.5) in y
1.055 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.055 * [taylor]: Taking taylor expansion of y in y
1.055 * [taylor]: Taking taylor expansion of 0.5 in y
1.055 * [taylor]: Taking taylor expansion of 0 in y
1.056 * [taylor]: Taking taylor expansion of 0 in y
1.056 * [taylor]: Taking taylor expansion of 0 in y
1.056 * [taylor]: Taking taylor expansion of 0 in y
1.056 * * * [progress]: simplifying candidates
1.057 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (exp (/ x 2.0)) (exp (* y x)))
  (log (+ (/ x 2.0) (* y x)))
  (exp (+ (/ x 2.0) (* y x)))
  (* (cbrt (+ (/ x 2.0) (* y x))) (cbrt (+ (/ x 2.0) (* y x))))
  (cbrt (+ (/ x 2.0) (* y x)))
  (* (* (+ (/ x 2.0) (* y x)) (+ (/ x 2.0) (* y x))) (+ (/ x 2.0) (* y x)))
  (sqrt (+ (/ x 2.0) (* y x)))
  (sqrt (+ (/ x 2.0) (* y x)))
  (+ (pow (/ x 2.0) 3) (pow (* y x) 3))
  (+ (* (/ x 2.0) (/ x 2.0)) (- (* (* y x) (* y x)) (* (/ x 2.0) (* y x))))
  (- (* (/ x 2.0) (/ x 2.0)) (* (* y x) (* y x)))
  (- (/ x 2.0) (* y x))
  (+ (* 0.5 x) (* x y))
  (+ (* 0.5 x) (* x y))
  (+ (* 0.5 x) (* x y))
1.059 * * [simplify]: iteration  0 :  93  enodes  (cost  77 )
1.061 * * [simplify]: iteration  1 :  295  enodes  (cost  67 )
1.067 * * [simplify]: iteration  2 :  803  enodes  (cost  67 )
1.082 * * [simplify]: iteration  3 :  2115  enodes  (cost  65 )
1.126 * * [simplify]: iteration  4 :  5001  enodes  (cost  65 )
1.127 * [simplify]: Simplified to:
   (exp (+ (/ x 2.0) (* y x)))
  (log (+ (/ x 2.0) (* y x)))
  (exp (+ (/ x 2.0) (* y x)))
  (* (cbrt (+ (/ x 2.0) (* y x))) (cbrt (+ (/ x 2.0) (* y x))))
  (cbrt (+ (/ x 2.0) (* y x)))
  (pow (+ (/ x 2.0) (* y x)) 3)
  (sqrt (+ (/ x 2.0) (* y x)))
  (sqrt (+ (/ x 2.0) (* y x)))
  (+ (pow (/ x 2.0) 3) (pow (* y x) 3))
  (* x (+ (/ (/ x 2.0) 2.0) (* y (- (* y x) (/ x 2.0)))))
  (* x (- (/ (/ x 2.0) 2.0) (* (* y x) y)))
  (- (/ x 2.0) (* y x))
  (* x (+ y 0.5))
  (* x (+ y 0.5))
  (* x (+ y 0.5))
1.127 * * * [progress]: adding candidates to table
1.145 * * [progress]: iteration 2 / 4
1.145 * * * [progress]: picking best candidate
1.147 * * * * [pick]: Picked  #<alt (λ (x y z) (+ (* x (+ y 0.5)) z))>
1.147 * * * [progress]: localizing error
1.153 * * * [progress]: generating rewritten candidates
1.153 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
1.159 * * * [progress]: generating series expansions
1.159 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
1.159 * [approximate]: Taking taylor expansion of (* x (+ y 0.5)) in (x y) around 0
1.160 * [taylor]: Taking taylor expansion of (* x (+ y 0.5)) in y
1.160 * [taylor]: Taking taylor expansion of x in y
1.160 * [taylor]: Taking taylor expansion of (+ y 0.5) in y
1.160 * [taylor]: Taking taylor expansion of y in y
1.160 * [taylor]: Taking taylor expansion of 0.5 in y
1.160 * [taylor]: Taking taylor expansion of (* x (+ y 0.5)) in x
1.160 * [taylor]: Taking taylor expansion of x in x
1.160 * [taylor]: Taking taylor expansion of (+ y 0.5) in x
1.160 * [taylor]: Taking taylor expansion of y in x
1.160 * [taylor]: Taking taylor expansion of 0.5 in x
1.160 * [taylor]: Taking taylor expansion of (* x (+ y 0.5)) in x
1.160 * [taylor]: Taking taylor expansion of x in x
1.160 * [taylor]: Taking taylor expansion of (+ y 0.5) in x
1.160 * [taylor]: Taking taylor expansion of y in x
1.160 * [taylor]: Taking taylor expansion of 0.5 in x
1.160 * [taylor]: Taking taylor expansion of 0 in y
1.160 * [taylor]: Taking taylor expansion of (+ y 0.5) in y
1.160 * [taylor]: Taking taylor expansion of y in y
1.160 * [taylor]: Taking taylor expansion of 0.5 in y
1.162 * [taylor]: Taking taylor expansion of 0 in y
1.162 * [taylor]: Taking taylor expansion of 0 in y
1.162 * [taylor]: Taking taylor expansion of 0 in y
1.163 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 y) 0.5) x) in (x y) around 0
1.163 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 0.5) x) in y
1.163 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in y
1.163 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.163 * [taylor]: Taking taylor expansion of y in y
1.163 * [taylor]: Taking taylor expansion of 0.5 in y
1.163 * [taylor]: Taking taylor expansion of x in y
1.163 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 0.5) x) in x
1.163 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in x
1.163 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.163 * [taylor]: Taking taylor expansion of y in x
1.163 * [taylor]: Taking taylor expansion of 0.5 in x
1.163 * [taylor]: Taking taylor expansion of x in x
1.163 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 0.5) x) in x
1.163 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in x
1.163 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.163 * [taylor]: Taking taylor expansion of y in x
1.163 * [taylor]: Taking taylor expansion of 0.5 in x
1.163 * [taylor]: Taking taylor expansion of x in x
1.163 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in y
1.163 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.163 * [taylor]: Taking taylor expansion of y in y
1.163 * [taylor]: Taking taylor expansion of 0.5 in y
1.163 * [taylor]: Taking taylor expansion of 0 in y
1.164 * [taylor]: Taking taylor expansion of 0 in y
1.164 * [taylor]: Taking taylor expansion of 0 in y
1.164 * [taylor]: Taking taylor expansion of 0 in y
1.164 * [approximate]: Taking taylor expansion of (* -1 (/ (- 0.5 (/ 1 y)) x)) in (x y) around 0
1.164 * [taylor]: Taking taylor expansion of (* -1 (/ (- 0.5 (/ 1 y)) x)) in y
1.164 * [taylor]: Taking taylor expansion of -1 in y
1.164 * [taylor]: Taking taylor expansion of (/ (- 0.5 (/ 1 y)) x) in y
1.164 * [taylor]: Taking taylor expansion of (- 0.5 (/ 1 y)) in y
1.165 * [taylor]: Taking taylor expansion of 0.5 in y
1.165 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.165 * [taylor]: Taking taylor expansion of y in y
1.165 * [taylor]: Taking taylor expansion of x in y
1.165 * [taylor]: Taking taylor expansion of (* -1 (/ (- 0.5 (/ 1 y)) x)) in x
1.165 * [taylor]: Taking taylor expansion of -1 in x
1.165 * [taylor]: Taking taylor expansion of (/ (- 0.5 (/ 1 y)) x) in x
1.165 * [taylor]: Taking taylor expansion of (- 0.5 (/ 1 y)) in x
1.165 * [taylor]: Taking taylor expansion of 0.5 in x
1.165 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.165 * [taylor]: Taking taylor expansion of y in x
1.165 * [taylor]: Taking taylor expansion of x in x
1.165 * [taylor]: Taking taylor expansion of (* -1 (/ (- 0.5 (/ 1 y)) x)) in x
1.165 * [taylor]: Taking taylor expansion of -1 in x
1.165 * [taylor]: Taking taylor expansion of (/ (- 0.5 (/ 1 y)) x) in x
1.165 * [taylor]: Taking taylor expansion of (- 0.5 (/ 1 y)) in x
1.165 * [taylor]: Taking taylor expansion of 0.5 in x
1.165 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.165 * [taylor]: Taking taylor expansion of y in x
1.165 * [taylor]: Taking taylor expansion of x in x
1.165 * [taylor]: Taking taylor expansion of (* -1 (- 0.5 (/ 1 y))) in y
1.165 * [taylor]: Taking taylor expansion of -1 in y
1.165 * [taylor]: Taking taylor expansion of (- 0.5 (/ 1 y)) in y
1.165 * [taylor]: Taking taylor expansion of 0.5 in y
1.165 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.165 * [taylor]: Taking taylor expansion of y in y
1.165 * [taylor]: Taking taylor expansion of 0 in y
1.166 * [taylor]: Taking taylor expansion of 0 in y
1.166 * [taylor]: Taking taylor expansion of 0 in y
1.166 * [taylor]: Taking taylor expansion of 0 in y
1.167 * * * [progress]: simplifying candidates
1.167 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (+ y 0.5))
  (+ (log x) (log (+ y 0.5)))
  (log (* x (+ y 0.5)))
  (exp (* x (+ y 0.5)))
  (* (* (* x x) x) (* (* (+ y 0.5) (+ y 0.5)) (+ y 0.5)))
  (* (cbrt (* x (+ y 0.5))) (cbrt (* x (+ y 0.5))))
  (cbrt (* x (+ y 0.5)))
  (* (* (* x (+ y 0.5)) (* x (+ y 0.5))) (* x (+ y 0.5)))
  (sqrt (* x (+ y 0.5)))
  (sqrt (* x (+ y 0.5)))
  (* (sqrt x) (sqrt (+ y 0.5)))
  (* (sqrt x) (sqrt (+ y 0.5)))
  (* x y)
  (* x 0.5)
  (* y x)
  (* 0.5 x)
  (* x (* (cbrt (+ y 0.5)) (cbrt (+ y 0.5))))
  (* x (sqrt (+ y 0.5)))
  (* x 1)
  (* x 1)
  (* (cbrt x) (+ y 0.5))
  (* (sqrt x) (+ y 0.5))
  (* x (+ y 0.5))
  (* x (+ (pow y 3) (pow 0.5 3)))
  (* x (- (* y y) (* 0.5 0.5)))
  (+ (* 0.5 x) (* x y))
  (+ (* 0.5 x) (* x y))
  (+ (* 0.5 x) (* x y))
1.170 * * [simplify]: iteration  0 :  126  enodes  (cost  86 )
1.173 * * [simplify]: iteration  1 :  534  enodes  (cost  76 )
1.184 * * [simplify]: iteration  2 :  2147  enodes  (cost  76 )
1.215 * * [simplify]: iteration  3 :  5001  enodes  (cost  76 )
1.216 * [simplify]: Simplified to:
   (* x (+ y 0.5))
  (log (* x (+ y 0.5)))
  (log (* x (+ y 0.5)))
  (exp (* x (+ y 0.5)))
  (pow (* x (+ y 0.5)) 3)
  (* (cbrt (* x (+ y 0.5))) (cbrt (* x (+ y 0.5))))
  (cbrt (* x (+ y 0.5)))
  (pow (* x (+ y 0.5)) 3)
  (sqrt (* x (+ y 0.5)))
  (sqrt (* x (+ y 0.5)))
  (* (sqrt x) (sqrt (+ y 0.5)))
  (* (sqrt x) (sqrt (+ y 0.5)))
  (* x y)
  (* x 0.5)
  (* x y)
  (* x 0.5)
  (* x (* (cbrt (+ y 0.5)) (cbrt (+ y 0.5))))
  (* x (sqrt (+ y 0.5)))
  x
  x
  (* (cbrt x) (+ y 0.5))
  (* (sqrt x) (+ y 0.5))
  (* x (+ y 0.5))
  (* x (+ (pow y 3) (pow 0.5 3)))
  (* x (- (* y y) (* 0.5 0.5)))
  (* x (+ y 0.5))
  (* x (+ y 0.5))
  (* x (+ y 0.5))
1.216 * * * [progress]: adding candidates to table
1.239 * [progress]: [Phase 3 of 3] Extracting.
1.241 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* x (+ y 0.5)) z)
1.242 * * [simplify]: iteration  0 :  10  enodes  (cost  3 )
1.242 * * [simplify]: iteration  1 :  10  enodes  (cost  3 )
1.242 * [simplify]: Simplified to:
   (+ (* x (+ y 0.5)) z)
2.998 * [regime-testing]: End program error score: 0.006375796974621828