0.256 * [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-regraph> :
   (+ x (/ (- y x) 2.0))
0.014 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.015 * * [simplify]: iteration  1 :  12  enodes  (cost  7 )
0.016 * * [simplify]: iteration  2 :  19  enodes  (cost  7 )
0.018 * * [simplify]: iteration  3 :  28  enodes  (cost  7 )
0.021 * * [simplify]: iteration  4 :  38  enodes  (cost  7 )
0.025 * * [simplify]: iteration  5 :  49  enodes  (cost  7 )
0.031 * * [simplify]: iteration  6 :  54  enodes  (cost  7 )
0.037 * * [simplify]: iteration  7 :  63  enodes  (cost  7 )
0.044 * * [simplify]: iteration  8 :  80  enodes  (cost  7 )
0.056 * * [simplify]: iteration  9 :  100  enodes  (cost  7 )
0.069 * * [simplify]: iteration  10 :  129  enodes  (cost  7 )
0.086 * * [simplify]: iteration  11 :  131  enodes  (cost  7 )
0.105 * * [simplify]: iteration  12 :  135  enodes  (cost  7 )
0.123 * * [simplify]: iteration  13 :  138  enodes  (cost  7 )
0.140 * * [simplify]: iteration  done :  138  enodes  (cost  7 )
0.140 * [simplify]: Simplified to:
   (+ x (/ (- y x) 2.0))
0.141 * * [progress]: iteration 1 / 4
0.141 * * * [progress]: picking best candidate
0.142 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (/ (- y x) 2.0)))>
0.142 * * * [progress]: localizing error
0.147 * * * [progress]: generating rewritten candidates
0.147 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.163 * * * [progress]: generating series expansions
0.163 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.163 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in (x y) around 0
0.163 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in y
0.163 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
0.163 * [taylor]: Taking taylor expansion of 0.5 in y
0.163 * [taylor]: Taking taylor expansion of x in y
0.163 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.163 * [taylor]: Taking taylor expansion of 0.5 in y
0.163 * [taylor]: Taking taylor expansion of y in y
0.163 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
0.163 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.163 * [taylor]: Taking taylor expansion of 0.5 in x
0.163 * [taylor]: Taking taylor expansion of x in x
0.163 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
0.163 * [taylor]: Taking taylor expansion of 0.5 in x
0.163 * [taylor]: Taking taylor expansion of y in x
0.163 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
0.163 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.163 * [taylor]: Taking taylor expansion of 0.5 in x
0.163 * [taylor]: Taking taylor expansion of x in x
0.163 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
0.163 * [taylor]: Taking taylor expansion of 0.5 in x
0.163 * [taylor]: Taking taylor expansion of y in x
0.164 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.164 * [taylor]: Taking taylor expansion of 0.5 in y
0.164 * [taylor]: Taking taylor expansion of y in y
0.166 * [taylor]: Taking taylor expansion of 0.5 in y
0.169 * [taylor]: Taking taylor expansion of 0 in y
0.171 * [taylor]: Taking taylor expansion of 0 in y
0.172 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in (x y) around 0
0.172 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
0.172 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.172 * [taylor]: Taking taylor expansion of 0.5 in y
0.172 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.172 * [taylor]: Taking taylor expansion of y in y
0.172 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
0.172 * [taylor]: Taking taylor expansion of 0.5 in y
0.172 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.172 * [taylor]: Taking taylor expansion of x in y
0.172 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.172 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.172 * [taylor]: Taking taylor expansion of 0.5 in x
0.172 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.172 * [taylor]: Taking taylor expansion of y in x
0.172 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.172 * [taylor]: Taking taylor expansion of 0.5 in x
0.172 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.172 * [taylor]: Taking taylor expansion of x in x
0.173 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.173 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.173 * [taylor]: Taking taylor expansion of 0.5 in x
0.173 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.173 * [taylor]: Taking taylor expansion of y in x
0.173 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.173 * [taylor]: Taking taylor expansion of 0.5 in x
0.173 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.173 * [taylor]: Taking taylor expansion of x in x
0.174 * [taylor]: Taking taylor expansion of 0.5 in y
0.175 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.175 * [taylor]: Taking taylor expansion of 0.5 in y
0.175 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.175 * [taylor]: Taking taylor expansion of y in y
0.177 * [taylor]: Taking taylor expansion of 0 in y
0.180 * [taylor]: Taking taylor expansion of 0 in y
0.183 * [taylor]: Taking taylor expansion of 0 in y
0.184 * [approximate]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in (x y) around 0
0.184 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in y
0.184 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
0.184 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.184 * [taylor]: Taking taylor expansion of 0.5 in y
0.184 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.184 * [taylor]: Taking taylor expansion of y in y
0.184 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
0.184 * [taylor]: Taking taylor expansion of 0.5 in y
0.184 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.184 * [taylor]: Taking taylor expansion of x in y
0.184 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x
0.184 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.184 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.184 * [taylor]: Taking taylor expansion of 0.5 in x
0.184 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.184 * [taylor]: Taking taylor expansion of y in x
0.184 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.184 * [taylor]: Taking taylor expansion of 0.5 in x
0.184 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.184 * [taylor]: Taking taylor expansion of x in x
0.185 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x
0.185 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.185 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.185 * [taylor]: Taking taylor expansion of 0.5 in x
0.185 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.185 * [taylor]: Taking taylor expansion of y in x
0.185 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.185 * [taylor]: Taking taylor expansion of 0.5 in x
0.185 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.185 * [taylor]: Taking taylor expansion of x in x
0.186 * [taylor]: Taking taylor expansion of (- 0.5) in y
0.186 * [taylor]: Taking taylor expansion of 0.5 in y
0.187 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
0.187 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.187 * [taylor]: Taking taylor expansion of 0.5 in y
0.187 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.187 * [taylor]: Taking taylor expansion of y in y
0.190 * [taylor]: Taking taylor expansion of 0 in y
0.194 * [taylor]: Taking taylor expansion of 0 in y
0.198 * [taylor]: Taking taylor expansion of 0 in y
0.199 * * * [progress]: simplifying candidates
0.199 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (+ x (/ (- y x) 2.0)))
  (log1p (+ x (/ (- y x) 2.0)))
  (* (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))
0.201 * * [simplify]: iteration  0 :  35  enodes  (cost  194 )
0.207 * * [simplify]: iteration  1 :  98  enodes  (cost  180 )
0.222 * * [simplify]: iteration  2 :  233  enodes  (cost  166 )
0.264 * * [simplify]: iteration  3 :  678  enodes  (cost  166 )