18.472 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.011 * * * [progress]: [2/2] Setting up program.
0.013 * [progress]: [Phase 2 of 3] Improving.
0.013 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ x (/ (- y x) 2.0))
0.016 * * [simplify]: iteration  0 :  12  enodes  (cost  3 )
0.018 * * [simplify]: iteration  1 :  19  enodes  (cost  3 )
0.019 * * [simplify]: iteration  2 :  28  enodes  (cost  3 )
0.021 * * [simplify]: iteration  3 :  40  enodes  (cost  3 )
0.023 * * [simplify]: iteration  4 :  50  enodes  (cost  3 )
0.024 * * [simplify]: iteration  5 :  73  enodes  (cost  3 )
0.026 * * [simplify]: iteration  6 :  102  enodes  (cost  3 )
0.028 * * [simplify]: iteration  7 :  118  enodes  (cost  3 )
0.029 * * [simplify]: iteration  8 :  145  enodes  (cost  3 )
0.031 * * [simplify]: iteration  9 :  174  enodes  (cost  3 )
0.033 * * [simplify]: iteration  10 :  190  enodes  (cost  3 )
0.035 * * [simplify]: iteration  11 :  190  enodes  (cost  3 )
0.035 * [simplify]: Simplified to:
   (+ x (/ (- y x) 2.0))
0.035 * * [progress]: iteration 1 / 4
0.035 * * * [progress]: picking best candidate
0.036 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (/ (- y x) 2.0)))>
0.037 * * * [progress]: localizing error
0.042 * * * [progress]: generating rewritten candidates
0.042 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.051 * * * [progress]: generating series expansions
0.051 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.051 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in (x y) around 0
0.051 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in y
0.051 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
0.051 * [taylor]: Taking taylor expansion of 0.5 in y
0.051 * [taylor]: Taking taylor expansion of x in y
0.051 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.051 * [taylor]: Taking taylor expansion of 0.5 in y
0.051 * [taylor]: Taking taylor expansion of y in y
0.051 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
0.051 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.051 * [taylor]: Taking taylor expansion of 0.5 in x
0.051 * [taylor]: Taking taylor expansion of x in x
0.051 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
0.051 * [taylor]: Taking taylor expansion of 0.5 in x
0.051 * [taylor]: Taking taylor expansion of y in x
0.051 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
0.051 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.051 * [taylor]: Taking taylor expansion of 0.5 in x
0.051 * [taylor]: Taking taylor expansion of x in x
0.051 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
0.051 * [taylor]: Taking taylor expansion of 0.5 in x
0.051 * [taylor]: Taking taylor expansion of y in x
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 * [taylor]: Taking taylor expansion of y in y
0.054 * [taylor]: Taking taylor expansion of 0.5 in y
0.056 * [taylor]: Taking taylor expansion of 0 in y
0.058 * [taylor]: Taking taylor expansion of 0 in y
0.058 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in (x y) around 0
0.058 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
0.058 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.058 * [taylor]: Taking taylor expansion of 0.5 in y
0.058 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.058 * [taylor]: Taking taylor expansion of y in y
0.059 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
0.059 * [taylor]: Taking taylor expansion of 0.5 in y
0.059 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.059 * [taylor]: Taking taylor expansion of x in y
0.059 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.059 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.059 * [taylor]: Taking taylor expansion of 0.5 in x
0.059 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.059 * [taylor]: Taking taylor expansion of y in x
0.059 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.059 * [taylor]: Taking taylor expansion of 0.5 in x
0.059 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.059 * [taylor]: Taking taylor expansion of x in x
0.059 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.059 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.059 * [taylor]: Taking taylor expansion of 0.5 in x
0.059 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.059 * [taylor]: Taking taylor expansion of y in x
0.059 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.059 * [taylor]: Taking taylor expansion of 0.5 in x
0.059 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.059 * [taylor]: Taking taylor expansion of x in x
0.060 * [taylor]: Taking taylor expansion of 0.5 in y
0.061 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.061 * [taylor]: Taking taylor expansion of 0.5 in y
0.061 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.061 * [taylor]: Taking taylor expansion of y in y
0.063 * [taylor]: Taking taylor expansion of 0 in y
0.067 * [taylor]: Taking taylor expansion of 0 in y
0.074 * [taylor]: Taking taylor expansion of 0 in y
0.075 * [approximate]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in (x y) around 0
0.075 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in y
0.075 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
0.075 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.075 * [taylor]: Taking taylor expansion of 0.5 in y
0.075 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.075 * [taylor]: Taking taylor expansion of y in y
0.075 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
0.075 * [taylor]: Taking taylor expansion of 0.5 in y
0.075 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.075 * [taylor]: Taking taylor expansion of x in y
0.075 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x
0.075 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.075 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.075 * [taylor]: Taking taylor expansion of 0.5 in x
0.075 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.075 * [taylor]: Taking taylor expansion of y in x
0.075 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.075 * [taylor]: Taking taylor expansion of 0.5 in x
0.075 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.075 * [taylor]: Taking taylor expansion of x in x
0.076 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x
0.076 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.076 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.076 * [taylor]: Taking taylor expansion of 0.5 in x
0.076 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.076 * [taylor]: Taking taylor expansion of y in x
0.076 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.076 * [taylor]: Taking taylor expansion of 0.5 in x
0.076 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.076 * [taylor]: Taking taylor expansion of x in x
0.077 * [taylor]: Taking taylor expansion of (- 0.5) in y
0.077 * [taylor]: Taking taylor expansion of 0.5 in y
0.078 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
0.078 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.078 * [taylor]: Taking taylor expansion of 0.5 in y
0.078 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.078 * [taylor]: Taking taylor expansion of y in y
0.081 * [taylor]: Taking taylor expansion of 0 in y
0.085 * [taylor]: Taking taylor expansion of 0 in y
0.089 * [taylor]: Taking taylor expansion of 0 in y
0.090 * * * [progress]: simplifying candidates
0.090 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (exp x) (exp (/ (- y x) 2.0)))
  (log (+ x (/ (- y x) 2.0)))
  (exp (+ x (/ (- y x) 2.0)))
  (* (cbrt (+ x (/ (- y x) 2.0))) (cbrt (+ x (/ (- y x) 2.0))))
  (cbrt (+ x (/ (- y x) 2.0)))
  (* (* (+ x (/ (- y x) 2.0)) (+ x (/ (- y x) 2.0))) (+ x (/ (- y x) 2.0)))
  (sqrt (+ x (/ (- y x) 2.0)))
  (sqrt (+ x (/ (- y x) 2.0)))
  (+ (pow x 3) (pow (/ (- y x) 2.0) 3))
  (+ (* x x) (- (* (/ (- y x) 2.0) (/ (- y x) 2.0)) (* x (/ (- y x) 2.0))))
  (- (* x x) (* (/ (- y x) 2.0) (/ (- y x) 2.0)))
  (- x (/ (- y x) 2.0))
  (+ x (/ (- y x) 2.0))
  (+ x (/ y 2.0))
  (+ (* 0.5 x) (* 0.5 y))
  (+ (* 0.5 x) (* 0.5 y))
  (+ (* 0.5 x) (* 0.5 y))
0.094 * * [simplify]: iteration  0 :  91  enodes  (cost  78 )
0.098 * * [simplify]: iteration  1 :  240  enodes  (cost  71 )
0.103 * * [simplify]: iteration  2 :  711  enodes  (cost  71 )
0.119 * * [simplify]: iteration  3 :  3533  enodes  (cost  71 )
0.172 * * [simplify]: iteration  4 :  5001  enodes  (cost  71 )
0.173 * [simplify]: Simplified to:
   (exp (+ x (/ (- y x) 2.0)))
  (log (+ x (/ (- y x) 2.0)))
  (exp (+ x (/ (- y x) 2.0)))
  (* (cbrt (+ x (/ (- y x) 2.0))) (cbrt (+ x (/ (- y x) 2.0))))
  (cbrt (+ x (/ (- y x) 2.0)))
  (pow (+ x (/ (- y x) 2.0)) 3)
  (sqrt (+ x (/ (- y x) 2.0)))
  (sqrt (+ x (/ (- y x) 2.0)))
  (+ (pow x 3) (pow (/ (- y x) 2.0) 3))
  (+ (* (/ (- y x) 2.0) (- (/ (- y x) 2.0) x)) (* x x))
  (- (* x x) (* (/ (- y x) 2.0) (/ (- y x) 2.0)))
  (- x (/ (- y x) 2.0))
  (+ x (/ (- y x) 2.0))
  (+ x (/ y 2.0))
  (* 0.5 (+ x y))
  (* 0.5 (+ x y))
  (* 0.5 (+ x y))
0.173 * * * [progress]: adding candidates to table
0.198 * * [progress]: iteration 2 / 4
0.198 * * * [progress]: picking best candidate
0.199 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (+ x y)))>
0.199 * * * [progress]: localizing error
0.203 * * * [progress]: generating rewritten candidates
0.203 * * * [progress]: generating series expansions
0.203 * * * [progress]: simplifying candidates
0.203 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.205 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.206 * [simplify]: Simplified to:
   
0.206 * * * [progress]: adding candidates to table
0.206 * [progress]: [Phase 3 of 3] Extracting.
0.207 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (+ x y))
0.209 * * [simplify]: iteration  0 :  7  enodes  (cost  2 )
0.209 * * [simplify]: iteration  1 :  7  enodes  (cost  2 )
0.209 * [simplify]: Simplified to:
   (* 0.5 (+ x y))
0.564 * [regime-testing]: End program error score: 0
0.583 * [regime-testing]: Target error score: 0