18.525 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.012 * * * [progress]: [2/2] Setting up program.
0.013 * [progress]: [Phase 2 of 3] Improving.
0.014 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (* (* x 2.0) y) (- x y))
0.015 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
0.015 * * [simplify]: iteration  1 :  15  enodes  (cost  9 )
0.017 * * [simplify]: iteration  2 :  35  enodes  (cost  9 )
0.022 * * [simplify]: iteration  3 :  70  enodes  (cost  9 )
0.032 * * [simplify]: iteration  4 :  120  enodes  (cost  9 )
0.048 * * [simplify]: iteration  5 :  151  enodes  (cost  9 )
0.065 * * [simplify]: iteration  6 :  166  enodes  (cost  9 )
0.084 * * [simplify]: iteration  7 :  171  enodes  (cost  9 )
0.104 * * [simplify]: iteration  done :  171  enodes  (cost  9 )
0.104 * [simplify]: Simplified to:
   (/ (* (* x 2.0) y) (- x y))
0.105 * * [progress]: iteration 1 / 4
0.105 * * * [progress]: picking best candidate
0.106 * * * * [pick]: Picked  #<alt (λ (x y) (/ (* (* x 2.0) y) (- x y)))>
0.106 * * * [progress]: localizing error
0.112 * * * [progress]: generating rewritten candidates
0.112 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.123 * * * [progress]: generating series expansions
0.123 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.123 * [approximate]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in (x y) around 0
0.124 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in y
0.124 * [taylor]: Taking taylor expansion of 2.0 in y
0.124 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in y
0.124 * [taylor]: Taking taylor expansion of (* x y) in y
0.124 * [taylor]: Taking taylor expansion of x in y
0.124 * [taylor]: Taking taylor expansion of y in y
0.124 * [taylor]: Taking taylor expansion of (- x y) in y
0.124 * [taylor]: Taking taylor expansion of x in y
0.124 * [taylor]: Taking taylor expansion of y in y
0.124 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
0.124 * [taylor]: Taking taylor expansion of 2.0 in x
0.124 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
0.124 * [taylor]: Taking taylor expansion of (* x y) in x
0.124 * [taylor]: Taking taylor expansion of x in x
0.125 * [taylor]: Taking taylor expansion of y in x
0.125 * [taylor]: Taking taylor expansion of (- x y) in x
0.125 * [taylor]: Taking taylor expansion of x in x
0.125 * [taylor]: Taking taylor expansion of y in x
0.125 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
0.125 * [taylor]: Taking taylor expansion of 2.0 in x
0.125 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
0.125 * [taylor]: Taking taylor expansion of (* x y) in x
0.125 * [taylor]: Taking taylor expansion of x in x
0.125 * [taylor]: Taking taylor expansion of y in x
0.125 * [taylor]: Taking taylor expansion of (- x y) in x
0.125 * [taylor]: Taking taylor expansion of x in x
0.125 * [taylor]: Taking taylor expansion of y in x
0.126 * [taylor]: Taking taylor expansion of -2.0 in y
0.127 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 y))) in y
0.127 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
0.127 * [taylor]: Taking taylor expansion of 2.0 in y
0.127 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.127 * [taylor]: Taking taylor expansion of y in y
0.131 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
0.132 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
0.132 * [taylor]: Taking taylor expansion of 2.0 in y
0.132 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.132 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.132 * [taylor]: Taking taylor expansion of y in y
0.137 * [approximate]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in (x y) around 0
0.137 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in y
0.137 * [taylor]: Taking taylor expansion of 2.0 in y
0.137 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in y
0.137 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.137 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.137 * [taylor]: Taking taylor expansion of x in y
0.137 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.137 * [taylor]: Taking taylor expansion of y in y
0.138 * [taylor]: Taking taylor expansion of (* x y) in y
0.138 * [taylor]: Taking taylor expansion of x in y
0.138 * [taylor]: Taking taylor expansion of y in y
0.139 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.139 * [taylor]: Taking taylor expansion of 2.0 in x
0.139 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.139 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.139 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.139 * [taylor]: Taking taylor expansion of x in x
0.140 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.140 * [taylor]: Taking taylor expansion of y in x
0.140 * [taylor]: Taking taylor expansion of (* x y) in x
0.140 * [taylor]: Taking taylor expansion of x in x
0.140 * [taylor]: Taking taylor expansion of y in x
0.141 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.141 * [taylor]: Taking taylor expansion of 2.0 in x
0.141 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.141 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.141 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.141 * [taylor]: Taking taylor expansion of x in x
0.142 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.142 * [taylor]: Taking taylor expansion of y in x
0.142 * [taylor]: Taking taylor expansion of (* x y) in x
0.142 * [taylor]: Taking taylor expansion of x in x
0.142 * [taylor]: Taking taylor expansion of y in x
0.143 * [taylor]: Taking taylor expansion of (/ 2.0 y) in y
0.143 * [taylor]: Taking taylor expansion of 2.0 in y
0.143 * [taylor]: Taking taylor expansion of y in y
0.146 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
0.146 * [taylor]: Taking taylor expansion of 2.0 in y
0.146 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.146 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.146 * [taylor]: Taking taylor expansion of y in y
0.152 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
0.153 * [taylor]: Taking taylor expansion of 2.0 in y
0.153 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
0.153 * [taylor]: Taking taylor expansion of (pow y 3) in y
0.153 * [taylor]: Taking taylor expansion of y in y
0.160 * [approximate]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in (x y) around 0
0.160 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in y
0.160 * [taylor]: Taking taylor expansion of 2.0 in y
0.160 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in y
0.160 * [taylor]: Taking taylor expansion of x in y
0.160 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
0.160 * [taylor]: Taking taylor expansion of y in y
0.160 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.160 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.160 * [taylor]: Taking taylor expansion of y in y
0.161 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.161 * [taylor]: Taking taylor expansion of x in y
0.163 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.163 * [taylor]: Taking taylor expansion of 2.0 in x
0.163 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.163 * [taylor]: Taking taylor expansion of x in x
0.163 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.163 * [taylor]: Taking taylor expansion of y in x
0.163 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.163 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.163 * [taylor]: Taking taylor expansion of y in x
0.163 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.163 * [taylor]: Taking taylor expansion of x in x
0.165 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.165 * [taylor]: Taking taylor expansion of 2.0 in x
0.165 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.165 * [taylor]: Taking taylor expansion of x in x
0.165 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.165 * [taylor]: Taking taylor expansion of y in x
0.165 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.165 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.165 * [taylor]: Taking taylor expansion of y in x
0.165 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.165 * [taylor]: Taking taylor expansion of x in x
0.170 * [taylor]: Taking taylor expansion of (/ -2.0 y) in y
0.170 * [taylor]: Taking taylor expansion of -2.0 in y
0.170 * [taylor]: Taking taylor expansion of y in y
0.173 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
0.173 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
0.173 * [taylor]: Taking taylor expansion of 2.0 in y
0.173 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.173 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.173 * [taylor]: Taking taylor expansion of y in y
0.179 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 3)))) in y
0.179 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
0.179 * [taylor]: Taking taylor expansion of 2.0 in y
0.179 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
0.179 * [taylor]: Taking taylor expansion of (pow y 3) in y
0.179 * [taylor]: Taking taylor expansion of y in y
0.187 * * * [progress]: simplifying candidates
0.188 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (+ (+ (log x) (log 2.0)) (log y)) (log (- x y)))
  (- (+ (log (* x 2.0)) (log y)) (log (- x y)))
  (- (log (* (* x 2.0) y)) (log (- x y)))
  (log (/ (* (* x 2.0) y) (- x y)))
  (exp (/ (* (* x 2.0) y) (- x y)))
  (/ (* (* (* (* x x) x) (* (* 2.0 2.0) 2.0)) (* (* y y) y)) (* (* (- x y) (- x y)) (- x y)))
  (/ (* (* (* (* x 2.0) (* x 2.0)) (* x 2.0)) (* (* y y) y)) (* (* (- x y) (- x y)) (- x y)))
  (/ (* (* (* (* x 2.0) y) (* (* x 2.0) y)) (* (* x 2.0) y)) (* (* (- x y) (- x y)) (- x y)))
  (* (cbrt (/ (* (* x 2.0) y) (- x y))) (cbrt (/ (* (* x 2.0) y) (- x y))))
  (cbrt (/ (* (* x 2.0) y) (- x y)))
  (* (* (/ (* (* x 2.0) y) (- x y)) (/ (* (* x 2.0) y) (- x y))) (/ (* (* x 2.0) y) (- x y)))
  (sqrt (/ (* (* x 2.0) y) (- x y)))
  (sqrt (/ (* (* x 2.0) y) (- x y)))
  (- (* (* x 2.0) y))
  (- (- x y))
  (/ (* x 2.0) (* (cbrt (- x y)) (cbrt (- x y))))
  (/ y (cbrt (- x y)))
  (/ (* x 2.0) (sqrt (- x y)))
  (/ y (sqrt (- x y)))
  (/ (* x 2.0) 1)
  (/ y (- x y))
  (/ (* x 2.0) (+ (sqrt x) (sqrt y)))
  (/ y (- (sqrt x) (sqrt y)))
  (/ (* x 2.0) 1)
  (/ y (- x y))
  (/ 1 (- x y))
  (/ (- x y) (* (* x 2.0) y))
  (/ (* (* x 2.0) y) (* (cbrt (- x y)) (cbrt (- x y))))
  (/ (* (* x 2.0) y) (sqrt (- x y)))
  (/ (* (* x 2.0) y) 1)
  (/ (* (* x 2.0) y) (+ (sqrt x) (sqrt y)))
  (/ (* (* x 2.0) y) 1)
  (/ (- x y) y)
  (/ (* (* x 2.0) y) (- (pow x 3) (pow y 3)))
  (/ (* (* x 2.0) y) (- (* x x) (* y y)))
  0
  0
  0
0.190 * * [simplify]: iteration  0 :  77  enodes  (cost  400 )
0.203 * * [simplify]: iteration  1 :  212  enodes  (cost  380 )
0.257 * * [simplify]: iteration  2 :  977  enodes  (cost  314 )
0.731 * * [simplify]: iteration  done :  5000  enodes  (cost  314 )
0.731 * [simplify]: Simplified to:
   (log (/ (* (* x 2.0) y) (- x y)))
  (log (/ (* (* x 2.0) y) (- x y)))
  (log (/ (* (* x 2.0) y) (- x y)))
  (log (/ (* (* x 2.0) y) (- x y)))
  (exp (/ (* (* x 2.0) y) (- x y)))
  (pow (/ (* (* x 2.0) y) (- x y)) 3)
  (pow (/ (* (* x 2.0) y) (- x y)) 3)
  (pow (/ (* (* x 2.0) y) (- x y)) 3)
  (* (cbrt (/ (* (* x 2.0) y) (- x y))) (cbrt (/ (* (* x 2.0) y) (- x y))))
  (cbrt (/ (* (* x 2.0) y) (- x y)))
  (pow (/ (* (* x 2.0) y) (- x y)) 3)
  (sqrt (/ (* (* x 2.0) y) (- x y)))
  (sqrt (/ (* (* x 2.0) y) (- x y)))
  (- (* (* x 2.0) y))
  (- (- x y))
  (/ (* x 2.0) (* (cbrt (- x y)) (cbrt (- x y))))
  (/ y (cbrt (- x y)))
  (/ (* x 2.0) (sqrt (- x y)))
  (/ y (sqrt (- x y)))
  (* x 2.0)
  (/ y (- x y))
  (/ (* x 2.0) (+ (sqrt x) (sqrt y)))
  (/ y (- (sqrt x) (sqrt y)))
  (* x 2.0)
  (/ y (- x y))
  (/ 1 (- x y))
  (/ (- x y) (* (* x 2.0) y))
  (/ (* (* x 2.0) y) (* (cbrt (- x y)) (cbrt (- x y))))
  (/ (* (* x 2.0) y) (sqrt (- x y)))
  (* (* x 2.0) y)
  (/ (* (* x 2.0) y) (+ (sqrt x) (sqrt y)))
  (* (* x 2.0) y)
  (/ (- x y) y)
  (/ (* (* x 2.0) y) (- (pow x 3) (pow y 3)))
  (/ (* (* x 2.0) y) (- (* x x) (* y y)))
  0
  0
  0
0.732 * * * [progress]: adding candidates to table
0.778 * * [progress]: iteration 2 / 4
0.778 * * * [progress]: picking best candidate
0.786 * * * * [pick]: Picked  #<alt (λ (x y) (* (* x 2.0) (/ y (- x y))))>
0.786 * * * [progress]: localizing error
0.793 * * * [progress]: generating rewritten candidates
0.793 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.809 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
0.817 * * * [progress]: generating series expansions
0.817 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.817 * [approximate]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in (x y) around 0
0.817 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in y
0.817 * [taylor]: Taking taylor expansion of 2.0 in y
0.817 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in y
0.817 * [taylor]: Taking taylor expansion of (* x y) in y
0.817 * [taylor]: Taking taylor expansion of x in y
0.817 * [taylor]: Taking taylor expansion of y in y
0.817 * [taylor]: Taking taylor expansion of (- x y) in y
0.817 * [taylor]: Taking taylor expansion of x in y
0.817 * [taylor]: Taking taylor expansion of y in y
0.818 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
0.818 * [taylor]: Taking taylor expansion of 2.0 in x
0.818 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
0.818 * [taylor]: Taking taylor expansion of (* x y) in x
0.818 * [taylor]: Taking taylor expansion of x in x
0.818 * [taylor]: Taking taylor expansion of y in x
0.818 * [taylor]: Taking taylor expansion of (- x y) in x
0.818 * [taylor]: Taking taylor expansion of x in x
0.818 * [taylor]: Taking taylor expansion of y in x
0.818 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
0.818 * [taylor]: Taking taylor expansion of 2.0 in x
0.818 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
0.818 * [taylor]: Taking taylor expansion of (* x y) in x
0.818 * [taylor]: Taking taylor expansion of x in x
0.818 * [taylor]: Taking taylor expansion of y in x
0.818 * [taylor]: Taking taylor expansion of (- x y) in x
0.818 * [taylor]: Taking taylor expansion of x in x
0.818 * [taylor]: Taking taylor expansion of y in x
0.819 * [taylor]: Taking taylor expansion of -2.0 in y
0.821 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 y))) in y
0.821 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
0.821 * [taylor]: Taking taylor expansion of 2.0 in y
0.821 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.821 * [taylor]: Taking taylor expansion of y in y
0.824 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
0.824 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
0.824 * [taylor]: Taking taylor expansion of 2.0 in y
0.824 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.824 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.824 * [taylor]: Taking taylor expansion of y in y
0.830 * [approximate]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in (x y) around 0
0.830 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in y
0.830 * [taylor]: Taking taylor expansion of 2.0 in y
0.830 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in y
0.830 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.830 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.830 * [taylor]: Taking taylor expansion of x in y
0.830 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.830 * [taylor]: Taking taylor expansion of y in y
0.831 * [taylor]: Taking taylor expansion of (* x y) in y
0.831 * [taylor]: Taking taylor expansion of x in y
0.831 * [taylor]: Taking taylor expansion of y in y
0.833 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.833 * [taylor]: Taking taylor expansion of 2.0 in x
0.833 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.833 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.833 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.833 * [taylor]: Taking taylor expansion of x in x
0.833 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.833 * [taylor]: Taking taylor expansion of y in x
0.833 * [taylor]: Taking taylor expansion of (* x y) in x
0.833 * [taylor]: Taking taylor expansion of x in x
0.833 * [taylor]: Taking taylor expansion of y in x
0.834 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.834 * [taylor]: Taking taylor expansion of 2.0 in x
0.834 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.834 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.835 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.835 * [taylor]: Taking taylor expansion of x in x
0.835 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.835 * [taylor]: Taking taylor expansion of y in x
0.835 * [taylor]: Taking taylor expansion of (* x y) in x
0.835 * [taylor]: Taking taylor expansion of x in x
0.835 * [taylor]: Taking taylor expansion of y in x
0.836 * [taylor]: Taking taylor expansion of (/ 2.0 y) in y
0.836 * [taylor]: Taking taylor expansion of 2.0 in y
0.836 * [taylor]: Taking taylor expansion of y in y
0.840 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
0.840 * [taylor]: Taking taylor expansion of 2.0 in y
0.840 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.840 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.840 * [taylor]: Taking taylor expansion of y in y
0.846 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
0.846 * [taylor]: Taking taylor expansion of 2.0 in y
0.846 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
0.846 * [taylor]: Taking taylor expansion of (pow y 3) in y
0.846 * [taylor]: Taking taylor expansion of y in y
0.854 * [approximate]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in (x y) around 0
0.854 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in y
0.854 * [taylor]: Taking taylor expansion of 2.0 in y
0.854 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in y
0.854 * [taylor]: Taking taylor expansion of x in y
0.854 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
0.854 * [taylor]: Taking taylor expansion of y in y
0.854 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.854 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.854 * [taylor]: Taking taylor expansion of y in y
0.854 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.854 * [taylor]: Taking taylor expansion of x in y
0.856 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.856 * [taylor]: Taking taylor expansion of 2.0 in x
0.856 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.856 * [taylor]: Taking taylor expansion of x in x
0.856 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.856 * [taylor]: Taking taylor expansion of y in x
0.856 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.856 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.856 * [taylor]: Taking taylor expansion of y in x
0.856 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.856 * [taylor]: Taking taylor expansion of x in x
0.858 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.858 * [taylor]: Taking taylor expansion of 2.0 in x
0.858 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.858 * [taylor]: Taking taylor expansion of x in x
0.858 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.858 * [taylor]: Taking taylor expansion of y in x
0.858 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.858 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.858 * [taylor]: Taking taylor expansion of y in x
0.858 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.858 * [taylor]: Taking taylor expansion of x in x
0.860 * [taylor]: Taking taylor expansion of (/ -2.0 y) in y
0.860 * [taylor]: Taking taylor expansion of -2.0 in y
0.860 * [taylor]: Taking taylor expansion of y in y
0.863 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
0.863 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
0.863 * [taylor]: Taking taylor expansion of 2.0 in y
0.863 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.863 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.863 * [taylor]: Taking taylor expansion of y in y
0.872 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 3)))) in y
0.872 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
0.872 * [taylor]: Taking taylor expansion of 2.0 in y
0.872 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
0.872 * [taylor]: Taking taylor expansion of (pow y 3) in y
0.872 * [taylor]: Taking taylor expansion of y in y
0.880 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
0.880 * [approximate]: Taking taylor expansion of (/ y (- x y)) in (y x) around 0
0.880 * [taylor]: Taking taylor expansion of (/ y (- x y)) in x
0.880 * [taylor]: Taking taylor expansion of y in x
0.880 * [taylor]: Taking taylor expansion of (- x y) in x
0.880 * [taylor]: Taking taylor expansion of x in x
0.880 * [taylor]: Taking taylor expansion of y in x
0.880 * [taylor]: Taking taylor expansion of (/ y (- x y)) in y
0.880 * [taylor]: Taking taylor expansion of y in y
0.880 * [taylor]: Taking taylor expansion of (- x y) in y
0.880 * [taylor]: Taking taylor expansion of x in y
0.880 * [taylor]: Taking taylor expansion of y in y
0.881 * [taylor]: Taking taylor expansion of (/ y (- x y)) in y
0.881 * [taylor]: Taking taylor expansion of y in y
0.881 * [taylor]: Taking taylor expansion of (- x y) in y
0.881 * [taylor]: Taking taylor expansion of x in y
0.881 * [taylor]: Taking taylor expansion of y in y
0.881 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.881 * [taylor]: Taking taylor expansion of x in x
0.882 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.882 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.883 * [taylor]: Taking taylor expansion of x in x
0.886 * [taylor]: Taking taylor expansion of (/ 1 (pow x 3)) in x
0.886 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.886 * [taylor]: Taking taylor expansion of x in x
0.893 * [approximate]: Taking taylor expansion of (/ 1 (* (- (/ 1 x) (/ 1 y)) y)) in (y x) around 0
0.893 * [taylor]: Taking taylor expansion of (/ 1 (* (- (/ 1 x) (/ 1 y)) y)) in x
0.893 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
0.893 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.893 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.893 * [taylor]: Taking taylor expansion of x in x
0.893 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.893 * [taylor]: Taking taylor expansion of y in x
0.893 * [taylor]: Taking taylor expansion of y in x
0.893 * [taylor]: Taking taylor expansion of (/ 1 (* (- (/ 1 x) (/ 1 y)) y)) in y
0.893 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
0.893 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.893 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.893 * [taylor]: Taking taylor expansion of x in y
0.893 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.893 * [taylor]: Taking taylor expansion of y in y
0.894 * [taylor]: Taking taylor expansion of y in y
0.896 * [taylor]: Taking taylor expansion of (/ 1 (* (- (/ 1 x) (/ 1 y)) y)) in y
0.896 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
0.896 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.896 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.896 * [taylor]: Taking taylor expansion of x in y
0.896 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.896 * [taylor]: Taking taylor expansion of y in y
0.896 * [taylor]: Taking taylor expansion of y in y
0.898 * [taylor]: Taking taylor expansion of -1 in x
0.900 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.900 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.900 * [taylor]: Taking taylor expansion of x in x
0.904 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2))) in x
0.904 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.904 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.904 * [taylor]: Taking taylor expansion of x in x
0.908 * [approximate]: Taking taylor expansion of (/ -1 (* y (- (/ 1 y) (/ 1 x)))) in (y x) around 0
0.909 * [taylor]: Taking taylor expansion of (/ -1 (* y (- (/ 1 y) (/ 1 x)))) in x
0.909 * [taylor]: Taking taylor expansion of -1 in x
0.909 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.909 * [taylor]: Taking taylor expansion of y in x
0.909 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.909 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.909 * [taylor]: Taking taylor expansion of y in x
0.909 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.909 * [taylor]: Taking taylor expansion of x in x
0.909 * [taylor]: Taking taylor expansion of (/ -1 (* y (- (/ 1 y) (/ 1 x)))) in y
0.909 * [taylor]: Taking taylor expansion of -1 in y
0.909 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
0.910 * [taylor]: Taking taylor expansion of y in y
0.910 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.910 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.910 * [taylor]: Taking taylor expansion of y in y
0.910 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.910 * [taylor]: Taking taylor expansion of x in y
0.911 * [taylor]: Taking taylor expansion of (/ -1 (* y (- (/ 1 y) (/ 1 x)))) in y
0.911 * [taylor]: Taking taylor expansion of -1 in y
0.911 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
0.911 * [taylor]: Taking taylor expansion of y in y
0.911 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.911 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.911 * [taylor]: Taking taylor expansion of y in y
0.912 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.912 * [taylor]: Taking taylor expansion of x in y
0.913 * [taylor]: Taking taylor expansion of -1 in x
0.915 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.915 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.915 * [taylor]: Taking taylor expansion of x in x
0.919 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2))) in x
0.919 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.919 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.919 * [taylor]: Taking taylor expansion of x in x
0.923 * * * [progress]: simplifying candidates
0.924 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (* x 2.0) (/ y (- x y)))
  (* (* x 2.0) (/ y (- x y)))
  (+ (+ (log x) (log 2.0)) (- (log y) (log (- x y))))
  (+ (+ (log x) (log 2.0)) (log (/ y (- x y))))
  (+ (log (* x 2.0)) (- (log y) (log (- x y))))
  (+ (log (* x 2.0)) (log (/ y (- x y))))
  (log (* (* x 2.0) (/ y (- x y))))
  (exp (* (* x 2.0) (/ y (- x y))))
  (* (* (* (* x x) x) (* (* 2.0 2.0) 2.0)) (/ (* (* y y) y) (* (* (- x y) (- x y)) (- x y))))
  (* (* (* (* x x) x) (* (* 2.0 2.0) 2.0)) (* (* (/ y (- x y)) (/ y (- x y))) (/ y (- x y))))
  (* (* (* (* x 2.0) (* x 2.0)) (* x 2.0)) (/ (* (* y y) y) (* (* (- x y) (- x y)) (- x y))))
  (* (* (* (* x 2.0) (* x 2.0)) (* x 2.0)) (* (* (/ y (- x y)) (/ y (- x y))) (/ y (- x y))))
  (* (cbrt (* (* x 2.0) (/ y (- x y)))) (cbrt (* (* x 2.0) (/ y (- x y)))))
  (cbrt (* (* x 2.0) (/ y (- x y))))
  (* (* (* (* x 2.0) (/ y (- x y))) (* (* x 2.0) (/ y (- x y)))) (* (* x 2.0) (/ y (- x y))))
  (sqrt (* (* x 2.0) (/ y (- x y))))
  (sqrt (* (* x 2.0) (/ y (- x y))))
  (* (* x 2.0) (* (cbrt (/ y (- x y))) (cbrt (/ y (- x y)))))
  (* (* x 2.0) (sqrt (/ y (- x y))))
  (* (* x 2.0) (/ (* (cbrt y) (cbrt y)) (* (cbrt (- x y)) (cbrt (- x y)))))
  (* (* x 2.0) (/ (* (cbrt y) (cbrt y)) (sqrt (- x y))))
  (* (* x 2.0) (/ (* (cbrt y) (cbrt y)) 1))
  (* (* x 2.0) (/ (* (cbrt y) (cbrt y)) (+ (sqrt x) (sqrt y))))
  (* (* x 2.0) (/ (* (cbrt y) (cbrt y)) 1))
  (* (* x 2.0) (/ (sqrt y) (* (cbrt (- x y)) (cbrt (- x y)))))
  (* (* x 2.0) (/ (sqrt y) (sqrt (- x y))))
  (* (* x 2.0) (/ (sqrt y) 1))
  (* (* x 2.0) (/ (sqrt y) (+ (sqrt x) (sqrt y))))
  (* (* x 2.0) (/ (sqrt y) 1))
  (* (* x 2.0) (/ 1 (* (cbrt (- x y)) (cbrt (- x y)))))
  (* (* x 2.0) (/ 1 (sqrt (- x y))))
  (* (* x 2.0) (/ 1 1))
  (* (* x 2.0) (/ 1 (+ (sqrt x) (sqrt y))))
  (* (* x 2.0) (/ 1 1))
  (* (* x 2.0) 1)
  (* (* x 2.0) y)
  (* (* x 2.0) (/ y (- (pow x 3) (pow y 3))))
  (* (* x 2.0) (/ y (- (* x x) (* y y))))
  (* 2.0 (/ y (- x y)))
  (* (* x 2.0) y)
  (- (log y) (log (- x y)))
  (log (/ y (- x y)))
  (exp (/ y (- x y)))
  (/ (* (* y y) y) (* (* (- x y) (- x y)) (- x y)))
  (* (cbrt (/ y (- x y))) (cbrt (/ y (- x y))))
  (cbrt (/ y (- x y)))
  (* (* (/ y (- x y)) (/ y (- x y))) (/ y (- x y)))
  (sqrt (/ y (- x y)))
  (sqrt (/ y (- x y)))
  (- y)
  (- (- x y))
  (/ (* (cbrt y) (cbrt y)) (* (cbrt (- x y)) (cbrt (- x y))))
  (/ (cbrt y) (cbrt (- x y)))
  (/ (* (cbrt y) (cbrt y)) (sqrt (- x y)))
  (/ (cbrt y) (sqrt (- x y)))
  (/ (* (cbrt y) (cbrt y)) 1)
  (/ (cbrt y) (- x y))
  (/ (* (cbrt y) (cbrt y)) (+ (sqrt x) (sqrt y)))
  (/ (cbrt y) (- (sqrt x) (sqrt y)))
  (/ (* (cbrt y) (cbrt y)) 1)
  (/ (cbrt y) (- x y))
  (/ (sqrt y) (* (cbrt (- x y)) (cbrt (- x y))))
  (/ (sqrt y) (cbrt (- x y)))
  (/ (sqrt y) (sqrt (- x y)))
  (/ (sqrt y) (sqrt (- x y)))
  (/ (sqrt y) 1)
  (/ (sqrt y) (- x y))
  (/ (sqrt y) (+ (sqrt x) (sqrt y)))
  (/ (sqrt y) (- (sqrt x) (sqrt y)))
  (/ (sqrt y) 1)
  (/ (sqrt y) (- x y))
  (/ 1 (* (cbrt (- x y)) (cbrt (- x y))))
  (/ y (cbrt (- x y)))
  (/ 1 (sqrt (- x y)))
  (/ y (sqrt (- x y)))
  (/ 1 1)
  (/ y (- x y))
  (/ 1 (+ (sqrt x) (sqrt y)))
  (/ y (- (sqrt x) (sqrt y)))
  (/ 1 1)
  (/ y (- x y))
  (/ 1 (- x y))
  (/ (- x y) y)
  (/ y (* (cbrt (- x y)) (cbrt (- x y))))
  (/ y (sqrt (- x y)))
  (/ y 1)
  (/ y (+ (sqrt x) (sqrt y)))
  (/ y 1)
  (/ (- x y) (cbrt y))
  (/ (- x y) (sqrt y))
  (/ (- x y) y)
  (/ y (- (pow x 3) (pow y 3)))
  (/ y (- (* x x) (* y y)))
  0
  0
  0
  0
  0
  0
0.928 * * [simplify]: iteration  0 :  116  enodes  (cost  915 )
0.956 * * [simplify]: iteration  1 :  311  enodes  (cost  856 )
1.130 * * [simplify]: iteration  2 :  1309  enodes  (cost  756 )
1.554 * * [simplify]: iteration  done :  5000  enodes  (cost  756 )
1.554 * [simplify]: Simplified to:
   (* (* x 2.0) (/ y (- x y)))
  (* (* x 2.0) (/ y (- x y)))
  (log (* (* x 2.0) (/ y (- x y))))
  (log (* (* x 2.0) (/ y (- x y))))
  (log (* (* x 2.0) (/ y (- x y))))
  (log (* (* x 2.0) (/ y (- x y))))
  (log (* (* x 2.0) (/ y (- x y))))
  (exp (* (* x 2.0) (/ y (- x y))))
  (pow (* (* x 2.0) (/ y (- x y))) 3)
  (pow (* (* x 2.0) (/ y (- x y))) 3)
  (pow (* (* x 2.0) (/ y (- x y))) 3)
  (pow (* (* x 2.0) (/ y (- x y))) 3)
  (* (cbrt (* (* x 2.0) (/ y (- x y)))) (cbrt (* (* x 2.0) (/ y (- x y)))))
  (cbrt (* (* x 2.0) (/ y (- x y))))
  (pow (* (* x 2.0) (/ y (- x y))) 3)
  (sqrt (* (* x 2.0) (/ y (- x y))))
  (sqrt (* (* x 2.0) (/ y (- x y))))
  (* (* x 2.0) (* (cbrt (/ y (- x y))) (cbrt (/ y (- x y)))))
  (* (* x 2.0) (sqrt (/ y (- x y))))
  (* (* x 2.0) (/ (* (cbrt y) (cbrt y)) (* (cbrt (- x y)) (cbrt (- x y)))))
  (* (* x 2.0) (/ (* (cbrt y) (cbrt y)) (sqrt (- x y))))
  (* (* (cbrt y) (cbrt y)) (* 2.0 x))
  (* (* x 2.0) (/ (* (cbrt y) (cbrt y)) (+ (sqrt x) (sqrt y))))
  (* (* (cbrt y) (cbrt y)) (* 2.0 x))
  (* (* x 2.0) (/ (sqrt y) (* (cbrt (- x y)) (cbrt (- x y)))))
  (* (* x 2.0) (/ (sqrt y) (sqrt (- x y))))
  (* (* x 2.0) (sqrt y))
  (* (* x 2.0) (/ (sqrt y) (+ (sqrt x) (sqrt y))))
  (* (* x 2.0) (sqrt y))
  (/ (* 2.0 x) (* (cbrt (- x y)) (cbrt (- x y))))
  (/ (* 2.0 x) (sqrt (- x y)))
  (* 2.0 x)
  (/ (* x 2.0) (+ (sqrt x) (sqrt y)))
  (* 2.0 x)
  (* 2.0 x)
  (* (* x 2.0) y)
  (* (* x 2.0) (/ y (- (pow x 3) (pow y 3))))
  (* (* x 2.0) (/ y (- (* x x) (* y y))))
  (* 2.0 (/ y (- x y)))
  (* (* x 2.0) y)
  (log (/ y (- x y)))
  (log (/ y (- x y)))
  (exp (/ y (- x y)))
  (pow (/ y (- x y)) 3)
  (* (cbrt (/ y (- x y))) (cbrt (/ y (- x y))))
  (cbrt (/ y (- x y)))
  (pow (/ y (- x y)) 3)
  (sqrt (/ y (- x y)))
  (sqrt (/ y (- x y)))
  (- y)
  (- (- x y))
  (/ (* (cbrt y) (cbrt y)) (* (cbrt (- x y)) (cbrt (- x y))))
  (/ (cbrt y) (cbrt (- x y)))
  (/ (* (cbrt y) (cbrt y)) (sqrt (- x y)))
  (/ (cbrt y) (sqrt (- x y)))
  (* (cbrt y) (cbrt y))
  (/ (cbrt y) (- x y))
  (/ (* (cbrt y) (cbrt y)) (+ (sqrt x) (sqrt y)))
  (/ (cbrt y) (- (sqrt x) (sqrt y)))
  (* (cbrt y) (cbrt y))
  (/ (cbrt y) (- x y))
  (/ (sqrt y) (* (cbrt (- x y)) (cbrt (- x y))))
  (/ (sqrt y) (cbrt (- x y)))
  (/ (sqrt y) (sqrt (- x y)))
  (/ (sqrt y) (sqrt (- x y)))
  (sqrt y)
  (/ (sqrt y) (- x y))
  (/ (sqrt y) (+ (sqrt x) (sqrt y)))
  (/ (sqrt y) (- (sqrt x) (sqrt y)))
  (sqrt y)
  (/ (sqrt y) (- x y))
  (/ (/ 1 (cbrt (- x y))) (cbrt (- x y)))
  (/ y (cbrt (- x y)))
  (/ 1 (sqrt (- x y)))
  (/ y (sqrt (- x y)))
  1
  (/ y (- x y))
  (/ 1 (+ (sqrt x) (sqrt y)))
  (/ y (- (sqrt x) (sqrt y)))
  1
  (/ y (- x y))
  (/ 1 (- x y))
  (/ (- x y) y)
  (/ y (* (cbrt (- x y)) (cbrt (- x y))))
  (/ y (sqrt (- x y)))
  y
  (/ y (+ (sqrt x) (sqrt y)))
  y
  (/ (- x y) (cbrt y))
  (/ (- x y) (sqrt y))
  (/ (- x y) y)
  (/ y (- (pow x 3) (pow y 3)))
  (/ y (- (* x x) (* y y)))
  0
  0
  0
  0
  0
  0
1.555 * * * [progress]: adding candidates to table
1.685 * * [progress]: iteration 3 / 4
1.685 * * * [progress]: picking best candidate
1.689 * * * * [pick]: Picked  #<alt (λ (x y) (/ (* x 2.0) (/ (- x y) y)))>
1.689 * * * [progress]: localizing error
1.695 * * * [progress]: generating rewritten candidates
1.695 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
1.706 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
1.718 * * * [progress]: generating series expansions
1.718 * * * * [progress]: [ 1 / 2 ] generating series at (2)
1.718 * [approximate]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in (x y) around 0
1.718 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in y
1.718 * [taylor]: Taking taylor expansion of 2.0 in y
1.718 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in y
1.718 * [taylor]: Taking taylor expansion of (* x y) in y
1.718 * [taylor]: Taking taylor expansion of x in y
1.718 * [taylor]: Taking taylor expansion of y in y
1.718 * [taylor]: Taking taylor expansion of (- x y) in y
1.718 * [taylor]: Taking taylor expansion of x in y
1.718 * [taylor]: Taking taylor expansion of y in y
1.719 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
1.719 * [taylor]: Taking taylor expansion of 2.0 in x
1.719 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
1.719 * [taylor]: Taking taylor expansion of (* x y) in x
1.719 * [taylor]: Taking taylor expansion of x in x
1.719 * [taylor]: Taking taylor expansion of y in x
1.719 * [taylor]: Taking taylor expansion of (- x y) in x
1.719 * [taylor]: Taking taylor expansion of x in x
1.719 * [taylor]: Taking taylor expansion of y in x
1.719 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
1.719 * [taylor]: Taking taylor expansion of 2.0 in x
1.719 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
1.719 * [taylor]: Taking taylor expansion of (* x y) in x
1.719 * [taylor]: Taking taylor expansion of x in x
1.720 * [taylor]: Taking taylor expansion of y in x
1.720 * [taylor]: Taking taylor expansion of (- x y) in x
1.720 * [taylor]: Taking taylor expansion of x in x
1.720 * [taylor]: Taking taylor expansion of y in x
1.720 * [taylor]: Taking taylor expansion of -2.0 in y
1.722 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 y))) in y
1.722 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
1.722 * [taylor]: Taking taylor expansion of 2.0 in y
1.722 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.722 * [taylor]: Taking taylor expansion of y in y
1.725 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
1.725 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
1.725 * [taylor]: Taking taylor expansion of 2.0 in y
1.725 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
1.725 * [taylor]: Taking taylor expansion of (pow y 2) in y
1.725 * [taylor]: Taking taylor expansion of y in y
1.731 * [approximate]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in (x y) around 0
1.731 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in y
1.731 * [taylor]: Taking taylor expansion of 2.0 in y
1.731 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in y
1.731 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
1.731 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.731 * [taylor]: Taking taylor expansion of x in y
1.731 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.731 * [taylor]: Taking taylor expansion of y in y
1.731 * [taylor]: Taking taylor expansion of (* x y) in y
1.731 * [taylor]: Taking taylor expansion of x in y
1.731 * [taylor]: Taking taylor expansion of y in y
1.733 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
1.733 * [taylor]: Taking taylor expansion of 2.0 in x
1.733 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
1.733 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
1.733 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.733 * [taylor]: Taking taylor expansion of x in x
1.733 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.733 * [taylor]: Taking taylor expansion of y in x
1.733 * [taylor]: Taking taylor expansion of (* x y) in x
1.733 * [taylor]: Taking taylor expansion of x in x
1.733 * [taylor]: Taking taylor expansion of y in x
1.735 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
1.735 * [taylor]: Taking taylor expansion of 2.0 in x
1.735 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
1.735 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
1.735 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.735 * [taylor]: Taking taylor expansion of x in x
1.735 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.735 * [taylor]: Taking taylor expansion of y in x
1.735 * [taylor]: Taking taylor expansion of (* x y) in x
1.735 * [taylor]: Taking taylor expansion of x in x
1.735 * [taylor]: Taking taylor expansion of y in x
1.737 * [taylor]: Taking taylor expansion of (/ 2.0 y) in y
1.737 * [taylor]: Taking taylor expansion of 2.0 in y
1.737 * [taylor]: Taking taylor expansion of y in y
1.740 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
1.740 * [taylor]: Taking taylor expansion of 2.0 in y
1.740 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
1.740 * [taylor]: Taking taylor expansion of (pow y 2) in y
1.740 * [taylor]: Taking taylor expansion of y in y
1.746 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
1.746 * [taylor]: Taking taylor expansion of 2.0 in y
1.746 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
1.746 * [taylor]: Taking taylor expansion of (pow y 3) in y
1.746 * [taylor]: Taking taylor expansion of y in y
1.753 * [approximate]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in (x y) around 0
1.753 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in y
1.753 * [taylor]: Taking taylor expansion of 2.0 in y
1.753 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in y
1.753 * [taylor]: Taking taylor expansion of x in y
1.753 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
1.754 * [taylor]: Taking taylor expansion of y in y
1.754 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
1.754 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.754 * [taylor]: Taking taylor expansion of y in y
1.754 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.754 * [taylor]: Taking taylor expansion of x in y
1.755 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
1.755 * [taylor]: Taking taylor expansion of 2.0 in x
1.755 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
1.756 * [taylor]: Taking taylor expansion of x in x
1.756 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
1.756 * [taylor]: Taking taylor expansion of y in x
1.756 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
1.756 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.756 * [taylor]: Taking taylor expansion of y in x
1.756 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.756 * [taylor]: Taking taylor expansion of x in x
1.758 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
1.758 * [taylor]: Taking taylor expansion of 2.0 in x
1.758 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
1.758 * [taylor]: Taking taylor expansion of x in x
1.758 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
1.758 * [taylor]: Taking taylor expansion of y in x
1.758 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
1.758 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.758 * [taylor]: Taking taylor expansion of y in x
1.758 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.758 * [taylor]: Taking taylor expansion of x in x
1.760 * [taylor]: Taking taylor expansion of (/ -2.0 y) in y
1.760 * [taylor]: Taking taylor expansion of -2.0 in y
1.760 * [taylor]: Taking taylor expansion of y in y
1.763 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
1.763 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
1.763 * [taylor]: Taking taylor expansion of 2.0 in y
1.763 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
1.763 * [taylor]: Taking taylor expansion of (pow y 2) in y
1.763 * [taylor]: Taking taylor expansion of y in y
1.770 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 3)))) in y
1.770 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
1.770 * [taylor]: Taking taylor expansion of 2.0 in y
1.770 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
1.770 * [taylor]: Taking taylor expansion of (pow y 3) in y
1.770 * [taylor]: Taking taylor expansion of y in y
1.778 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
1.778 * [approximate]: Taking taylor expansion of (/ (- x y) y) in (x y) around 0
1.778 * [taylor]: Taking taylor expansion of (/ (- x y) y) in y
1.778 * [taylor]: Taking taylor expansion of (- x y) in y
1.778 * [taylor]: Taking taylor expansion of x in y
1.778 * [taylor]: Taking taylor expansion of y in y
1.778 * [taylor]: Taking taylor expansion of y in y
1.778 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
1.778 * [taylor]: Taking taylor expansion of (- x y) in x
1.778 * [taylor]: Taking taylor expansion of x in x
1.778 * [taylor]: Taking taylor expansion of y in x
1.778 * [taylor]: Taking taylor expansion of y in x
1.778 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
1.778 * [taylor]: Taking taylor expansion of (- x y) in x
1.778 * [taylor]: Taking taylor expansion of x in x
1.778 * [taylor]: Taking taylor expansion of y in x
1.778 * [taylor]: Taking taylor expansion of y in x
1.779 * [taylor]: Taking taylor expansion of -1 in y
1.779 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.779 * [taylor]: Taking taylor expansion of y in y
1.780 * [taylor]: Taking taylor expansion of 0 in y
1.784 * [taylor]: Taking taylor expansion of 0 in y
1.785 * [taylor]: Taking taylor expansion of 0 in y
1.785 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in (x y) around 0
1.785 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
1.786 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
1.786 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.786 * [taylor]: Taking taylor expansion of x in y
1.786 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.786 * [taylor]: Taking taylor expansion of y in y
1.786 * [taylor]: Taking taylor expansion of y in y
1.786 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
1.786 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
1.786 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.786 * [taylor]: Taking taylor expansion of x in x
1.786 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.786 * [taylor]: Taking taylor expansion of y in x
1.786 * [taylor]: Taking taylor expansion of y in x
1.786 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
1.786 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
1.786 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.786 * [taylor]: Taking taylor expansion of x in x
1.787 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.787 * [taylor]: Taking taylor expansion of y in x
1.787 * [taylor]: Taking taylor expansion of y in x
1.787 * [taylor]: Taking taylor expansion of y in y
1.788 * [taylor]: Taking taylor expansion of (- 1) in y
1.788 * [taylor]: Taking taylor expansion of 1 in y
1.789 * [taylor]: Taking taylor expansion of 0 in y
1.791 * [taylor]: Taking taylor expansion of 0 in y
1.793 * [taylor]: Taking taylor expansion of 0 in y
1.794 * [approximate]: Taking taylor expansion of (* -1 (* y (- (/ 1 y) (/ 1 x)))) in (x y) around 0
1.794 * [taylor]: Taking taylor expansion of (* -1 (* y (- (/ 1 y) (/ 1 x)))) in y
1.794 * [taylor]: Taking taylor expansion of -1 in y
1.794 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
1.794 * [taylor]: Taking taylor expansion of y in y
1.794 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
1.794 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.794 * [taylor]: Taking taylor expansion of y in y
1.794 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.794 * [taylor]: Taking taylor expansion of x in y
1.794 * [taylor]: Taking taylor expansion of (* -1 (* y (- (/ 1 y) (/ 1 x)))) in x
1.794 * [taylor]: Taking taylor expansion of -1 in x
1.794 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
1.794 * [taylor]: Taking taylor expansion of y in x
1.794 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
1.794 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.794 * [taylor]: Taking taylor expansion of y in x
1.794 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.794 * [taylor]: Taking taylor expansion of x in x
1.794 * [taylor]: Taking taylor expansion of (* -1 (* y (- (/ 1 y) (/ 1 x)))) in x
1.794 * [taylor]: Taking taylor expansion of -1 in x
1.794 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
1.794 * [taylor]: Taking taylor expansion of y in x
1.794 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
1.794 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.795 * [taylor]: Taking taylor expansion of y in x
1.795 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.795 * [taylor]: Taking taylor expansion of x in x
1.795 * [taylor]: Taking taylor expansion of y in y
1.797 * [taylor]: Taking taylor expansion of (- 1) in y
1.797 * [taylor]: Taking taylor expansion of 1 in y
1.798 * [taylor]: Taking taylor expansion of 0 in y
1.801 * [taylor]: Taking taylor expansion of 0 in y
1.804 * [taylor]: Taking taylor expansion of 0 in y
1.805 * * * [progress]: simplifying candidates
1.806 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (+ (log x) (log 2.0)) (- (log (- x y)) (log y)))
  (- (+ (log x) (log 2.0)) (log (/ (- x y) y)))
  (- (log (* x 2.0)) (- (log (- x y)) (log y)))
  (- (log (* x 2.0)) (log (/ (- x y) y)))
  (log (/ (* x 2.0) (/ (- x y) y)))
  (exp (/ (* x 2.0) (/ (- x y) y)))
  (/ (* (* (* x x) x) (* (* 2.0 2.0) 2.0)) (/ (* (* (- x y) (- x y)) (- x y)) (* (* y y) y)))
  (/ (* (* (* x x) x) (* (* 2.0 2.0) 2.0)) (* (* (/ (- x y) y) (/ (- x y) y)) (/ (- x y) y)))
  (/ (* (* (* x 2.0) (* x 2.0)) (* x 2.0)) (/ (* (* (- x y) (- x y)) (- x y)) (* (* y y) y)))
  (/ (* (* (* x 2.0) (* x 2.0)) (* x 2.0)) (* (* (/ (- x y) y) (/ (- x y) y)) (/ (- x y) y)))
  (* (cbrt (/ (* x 2.0) (/ (- x y) y))) (cbrt (/ (* x 2.0) (/ (- x y) y))))
  (cbrt (/ (* x 2.0) (/ (- x y) y)))
  (* (* (/ (* x 2.0) (/ (- x y) y)) (/ (* x 2.0) (/ (- x y) y))) (/ (* x 2.0) (/ (- x y) y)))
  (sqrt (/ (* x 2.0) (/ (- x y) y)))
  (sqrt (/ (* x 2.0) (/ (- x y) y)))
  (- (* x 2.0))
  (- (/ (- x y) y))
  (/ x (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))))
  (/ 2.0 (cbrt (/ (- x y) y)))
  (/ x (sqrt (/ (- x y) y)))
  (/ 2.0 (sqrt (/ (- x y) y)))
  (/ x (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))))
  (/ 2.0 (/ (cbrt (- x y)) (cbrt y)))
  (/ x (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)))
  (/ 2.0 (/ (cbrt (- x y)) (sqrt y)))
  (/ x (/ (* (cbrt (- x y)) (cbrt (- x y))) 1))
  (/ 2.0 (/ (cbrt (- x y)) y))
  (/ x (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))))
  (/ 2.0 (/ (sqrt (- x y)) (cbrt y)))
  (/ x (/ (sqrt (- x y)) (sqrt y)))
  (/ 2.0 (/ (sqrt (- x y)) (sqrt y)))
  (/ x (/ (sqrt (- x y)) 1))
  (/ 2.0 (/ (sqrt (- x y)) y))
  (/ x (/ 1 (* (cbrt y) (cbrt y))))
  (/ 2.0 (/ (- x y) (cbrt y)))
  (/ x (/ 1 (sqrt y)))
  (/ 2.0 (/ (- x y) (sqrt y)))
  (/ x (/ 1 1))
  (/ 2.0 (/ (- x y) y))
  (/ x (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))))
  (/ 2.0 (/ (- (sqrt x) (sqrt y)) (cbrt y)))
  (/ x (/ (+ (sqrt x) (sqrt y)) (sqrt y)))
  (/ 2.0 (/ (- (sqrt x) (sqrt y)) (sqrt y)))
  (/ x (/ (+ (sqrt x) (sqrt y)) 1))
  (/ 2.0 (/ (- (sqrt x) (sqrt y)) y))
  (/ x (/ 1 (* (cbrt y) (cbrt y))))
  (/ 2.0 (/ (- x y) (cbrt y)))
  (/ x (/ 1 (sqrt y)))
  (/ 2.0 (/ (- x y) (sqrt y)))
  (/ x (/ 1 1))
  (/ 2.0 (/ (- x y) y))
  (/ x 1)
  (/ 2.0 (/ (- x y) y))
  (/ x (- x y))
  (/ 2.0 (/ 1 y))
  (/ 1 (/ (- x y) y))
  (/ (/ (- x y) y) (* x 2.0))
  (/ (* x 2.0) (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))))
  (/ (* x 2.0) (sqrt (/ (- x y) y)))
  (/ (* x 2.0) (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))))
  (/ (* x 2.0) (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)))
  (/ (* x 2.0) (/ (* (cbrt (- x y)) (cbrt (- x y))) 1))
  (/ (* x 2.0) (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))))
  (/ (* x 2.0) (/ (sqrt (- x y)) (sqrt y)))
  (/ (* x 2.0) (/ (sqrt (- x y)) 1))
  (/ (* x 2.0) (/ 1 (* (cbrt y) (cbrt y))))
  (/ (* x 2.0) (/ 1 (sqrt y)))
  (/ (* x 2.0) (/ 1 1))
  (/ (* x 2.0) (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))))
  (/ (* x 2.0) (/ (+ (sqrt x) (sqrt y)) (sqrt y)))
  (/ (* x 2.0) (/ (+ (sqrt x) (sqrt y)) 1))
  (/ (* x 2.0) (/ 1 (* (cbrt y) (cbrt y))))
  (/ (* x 2.0) (/ 1 (sqrt y)))
  (/ (* x 2.0) (/ 1 1))
  (/ (* x 2.0) 1)
  (/ (* x 2.0) (- x y))
  (/ (/ (- x y) y) 2.0)
  (/ (* x 2.0) (- x y))
  (- (log (- x y)) (log y))
  (log (/ (- x y) y))
  (exp (/ (- x y) y))
  (/ (* (* (- x y) (- x y)) (- x y)) (* (* y y) y))
  (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y)))
  (cbrt (/ (- x y) y))
  (* (* (/ (- x y) y) (/ (- x y) y)) (/ (- x y) y))
  (sqrt (/ (- x y) y))
  (sqrt (/ (- x y) y))
  (- (- x y))
  (- y)
  (/ x y)
  (/ y y)
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y)))
  (/ (cbrt (- x y)) (cbrt y))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y))
  (/ (cbrt (- x y)) (sqrt y))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) 1)
  (/ (cbrt (- x y)) y)
  (/ (sqrt (- x y)) (* (cbrt y) (cbrt y)))
  (/ (sqrt (- x y)) (cbrt y))
  (/ (sqrt (- x y)) (sqrt y))
  (/ (sqrt (- x y)) (sqrt y))
  (/ (sqrt (- x y)) 1)
  (/ (sqrt (- x y)) y)
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (- x y) (cbrt y))
  (/ 1 (sqrt y))
  (/ (- x y) (sqrt y))
  (/ 1 1)
  (/ (- x y) y)
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y)))
  (/ (- (sqrt x) (sqrt y)) (cbrt y))
  (/ (+ (sqrt x) (sqrt y)) (sqrt y))
  (/ (- (sqrt x) (sqrt y)) (sqrt y))
  (/ (+ (sqrt x) (sqrt y)) 1)
  (/ (- (sqrt x) (sqrt y)) y)
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (- x y) (cbrt y))
  (/ 1 (sqrt y))
  (/ (- x y) (sqrt y))
  (/ 1 1)
  (/ (- x y) y)
  (/ 1 y)
  (/ y (- x y))
  (/ (- x y) (* (cbrt y) (cbrt y)))
  (/ (- x y) (sqrt y))
  (/ (- x y) 1)
  (/ y (cbrt (- x y)))
  (/ y (sqrt (- x y)))
  (/ y (- x y))
  (/ y (- (sqrt x) (sqrt y)))
  (/ y (- x y))
  (* y (+ (* x x) (+ (* y y) (* x y))))
  (* y (+ x y))
  0
  0
  0
  (- (/ x y) 1)
  (- (/ x y) 1)
  (- (/ x y) 1)
1.810 * * [simplify]: iteration  0 :  151  enodes  (cost  1250 )
1.850 * * [simplify]: iteration  1 :  384  enodes  (cost  1177 )
2.021 * * [simplify]: iteration  2 :  1355  enodes  (cost  1063 )
2.469 * * [simplify]: iteration  done :  5000  enodes  (cost  1063 )
2.469 * [simplify]: Simplified to:
   (log (/ (* x 2.0) (/ (- x y) y)))
  (log (/ (* x 2.0) (/ (- x y) y)))
  (log (/ (* x 2.0) (/ (- x y) y)))
  (log (/ (* x 2.0) (/ (- x y) y)))
  (log (/ (* x 2.0) (/ (- x y) y)))
  (exp (/ (* x 2.0) (/ (- x y) y)))
  (pow (/ (* x 2.0) (/ (- x y) y)) 3)
  (pow (/ (* x 2.0) (/ (- x y) y)) 3)
  (pow (/ (* x 2.0) (/ (- x y) y)) 3)
  (pow (/ (* x 2.0) (/ (- x y) y)) 3)
  (* (cbrt (/ (* x 2.0) (/ (- x y) y))) (cbrt (/ (* x 2.0) (/ (- x y) y))))
  (cbrt (/ (* x 2.0) (/ (- x y) y)))
  (pow (/ (* x 2.0) (/ (- x y) y)) 3)
  (sqrt (/ (* x 2.0) (/ (- x y) y)))
  (sqrt (/ (* x 2.0) (/ (- x y) y)))
  (- (* x 2.0))
  (- (/ (- x y) y))
  (/ x (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))))
  (/ 2.0 (cbrt (/ (- x y) y)))
  (/ x (sqrt (/ (- x y) y)))
  (/ 2.0 (sqrt (/ (- x y) y)))
  (/ x (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))))
  (/ 2.0 (/ (cbrt (- x y)) (cbrt y)))
  (/ x (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)))
  (/ 2.0 (/ (cbrt (- x y)) (sqrt y)))
  (/ x (* (cbrt (- x y)) (cbrt (- x y))))
  (/ 2.0 (/ (cbrt (- x y)) y))
  (/ x (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))))
  (/ 2.0 (/ (sqrt (- x y)) (cbrt y)))
  (/ x (/ (sqrt (- x y)) (sqrt y)))
  (/ 2.0 (/ (sqrt (- x y)) (sqrt y)))
  (/ x (sqrt (- x y)))
  (/ 2.0 (/ (sqrt (- x y)) y))
  (* x (* (cbrt y) (cbrt y)))
  (/ 2.0 (/ (- x y) (cbrt y)))
  (* x (sqrt y))
  (/ 2.0 (/ (- x y) (sqrt y)))
  x
  (/ 2.0 (/ (- x y) y))
  (/ x (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))))
  (/ 2.0 (/ (- (sqrt x) (sqrt y)) (cbrt y)))
  (/ x (/ (+ (sqrt x) (sqrt y)) (sqrt y)))
  (/ 2.0 (- (/ (sqrt x) (sqrt y)) 1))
  (/ x (+ (sqrt x) (sqrt y)))
  (/ 2.0 (/ (- (sqrt x) (sqrt y)) y))
  (* x (* (cbrt y) (cbrt y)))
  (/ 2.0 (/ (- x y) (cbrt y)))
  (* x (sqrt y))
  (/ 2.0 (/ (- x y) (sqrt y)))
  x
  (/ 2.0 (/ (- x y) y))
  x
  (/ 2.0 (/ (- x y) y))
  (/ x (- x y))
  (* 2.0 y)
  (/ 1 (/ (- x y) y))
  (/ (/ (- x y) y) (* x 2.0))
  (/ (* x 2.0) (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))))
  (/ (* x 2.0) (sqrt (/ (- x y) y)))
  (/ (* x 2.0) (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))))
  (/ (* x 2.0) (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)))
  (/ x (/ (* (cbrt (- x y)) (cbrt (- x y))) 2.0))
  (/ (* x 2.0) (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))))
  (/ (* x 2.0) (/ (sqrt (- x y)) (sqrt y)))
  (/ (* x 2.0) (sqrt (- x y)))
  (* (* x 2.0) (* (cbrt y) (cbrt y)))
  (* (* x 2.0) (sqrt y))
  (* x 2.0)
  (/ (* x 2.0) (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))))
  (/ (* x 2.0) (/ (+ (sqrt x) (sqrt y)) (sqrt y)))
  (/ (* x 2.0) (+ (sqrt x) (sqrt y)))
  (* (* x 2.0) (* (cbrt y) (cbrt y)))
  (* (* x 2.0) (sqrt y))
  (* x 2.0)
  (* x 2.0)
  (/ (* x 2.0) (- x y))
  (/ (/ (- x y) y) 2.0)
  (/ (* x 2.0) (- x y))
  (log (/ (- x y) y))
  (log (/ (- x y) y))
  (exp (/ (- x y) y))
  (pow (/ (- x y) y) 3)
  (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y)))
  (cbrt (/ (- x y) y))
  (pow (/ (- x y) y) 3)
  (sqrt (/ (- x y) y))
  (sqrt (/ (- x y) y))
  (- (- x y))
  (- y)
  (/ x y)
  1
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y)))
  (/ (cbrt (- x y)) (cbrt y))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y))
  (/ (cbrt (- x y)) (sqrt y))
  (* (cbrt (- x y)) (cbrt (- x y)))
  (/ (cbrt (- x y)) y)
  (/ (sqrt (- x y)) (* (cbrt y) (cbrt y)))
  (/ (sqrt (- x y)) (cbrt y))
  (/ (sqrt (- x y)) (sqrt y))
  (/ (sqrt (- x y)) (sqrt y))
  (sqrt (- x y))
  (/ (sqrt (- x y)) y)
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (- x y) (cbrt y))
  (/ 1 (sqrt y))
  (/ (- x y) (sqrt y))
  1
  (/ (- x y) y)
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y)))
  (/ (- (sqrt x) (sqrt y)) (cbrt y))
  (/ (+ (sqrt x) (sqrt y)) (sqrt y))
  (- (/ (sqrt x) (sqrt y)) 1)
  (+ (sqrt x) (sqrt y))
  (/ (- (sqrt x) (sqrt y)) y)
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (- x y) (cbrt y))
  (/ 1 (sqrt y))
  (/ (- x y) (sqrt y))
  1
  (/ (- x y) y)
  (/ 1 y)
  (/ y (- x y))
  (/ (- x y) (* (cbrt y) (cbrt y)))
  (/ (- x y) (sqrt y))
  (- x y)
  (/ y (cbrt (- x y)))
  (/ y (sqrt (- x y)))
  (/ y (- x y))
  (/ y (- (sqrt x) (sqrt y)))
  (/ y (- x y))
  (* y (+ (* x x) (* y (+ x y))))
  (* y (+ x y))
  0
  0
  0
  (/ (- x y) y)
  (/ (- x y) y)
  (/ (- x y) y)
2.470 * * * [progress]: adding candidates to table
2.638 * * [progress]: iteration 4 / 4
2.638 * * * [progress]: picking best candidate
2.640 * * * * [pick]: Picked  #<alt (λ (x y) (* (/ (* x 2.0) (- x y)) y))>
2.640 * * * [progress]: localizing error
2.646 * * * [progress]: generating rewritten candidates
2.646 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
2.665 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
2.673 * * * [progress]: generating series expansions
2.673 * * * * [progress]: [ 1 / 2 ] generating series at (2)
2.673 * [approximate]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in (x y) around 0
2.673 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in y
2.673 * [taylor]: Taking taylor expansion of 2.0 in y
2.673 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in y
2.673 * [taylor]: Taking taylor expansion of (* x y) in y
2.673 * [taylor]: Taking taylor expansion of x in y
2.673 * [taylor]: Taking taylor expansion of y in y
2.673 * [taylor]: Taking taylor expansion of (- x y) in y
2.673 * [taylor]: Taking taylor expansion of x in y
2.673 * [taylor]: Taking taylor expansion of y in y
2.674 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
2.674 * [taylor]: Taking taylor expansion of 2.0 in x
2.674 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
2.674 * [taylor]: Taking taylor expansion of (* x y) in x
2.674 * [taylor]: Taking taylor expansion of x in x
2.674 * [taylor]: Taking taylor expansion of y in x
2.674 * [taylor]: Taking taylor expansion of (- x y) in x
2.674 * [taylor]: Taking taylor expansion of x in x
2.674 * [taylor]: Taking taylor expansion of y in x
2.675 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
2.675 * [taylor]: Taking taylor expansion of 2.0 in x
2.675 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
2.675 * [taylor]: Taking taylor expansion of (* x y) in x
2.675 * [taylor]: Taking taylor expansion of x in x
2.675 * [taylor]: Taking taylor expansion of y in x
2.675 * [taylor]: Taking taylor expansion of (- x y) in x
2.675 * [taylor]: Taking taylor expansion of x in x
2.675 * [taylor]: Taking taylor expansion of y in x
2.675 * [taylor]: Taking taylor expansion of -2.0 in y
2.677 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 y))) in y
2.677 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
2.677 * [taylor]: Taking taylor expansion of 2.0 in y
2.677 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.677 * [taylor]: Taking taylor expansion of y in y
2.680 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
2.680 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
2.680 * [taylor]: Taking taylor expansion of 2.0 in y
2.680 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
2.681 * [taylor]: Taking taylor expansion of (pow y 2) in y
2.681 * [taylor]: Taking taylor expansion of y in y
2.686 * [approximate]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in (x y) around 0
2.686 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in y
2.686 * [taylor]: Taking taylor expansion of 2.0 in y
2.686 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in y
2.686 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
2.686 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.686 * [taylor]: Taking taylor expansion of x in y
2.686 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.686 * [taylor]: Taking taylor expansion of y in y
2.686 * [taylor]: Taking taylor expansion of (* x y) in y
2.686 * [taylor]: Taking taylor expansion of x in y
2.686 * [taylor]: Taking taylor expansion of y in y
2.688 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
2.688 * [taylor]: Taking taylor expansion of 2.0 in x
2.688 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
2.688 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.688 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.688 * [taylor]: Taking taylor expansion of x in x
2.688 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.688 * [taylor]: Taking taylor expansion of y in x
2.688 * [taylor]: Taking taylor expansion of (* x y) in x
2.689 * [taylor]: Taking taylor expansion of x in x
2.689 * [taylor]: Taking taylor expansion of y in x
2.690 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
2.690 * [taylor]: Taking taylor expansion of 2.0 in x
2.690 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
2.690 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.690 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.690 * [taylor]: Taking taylor expansion of x in x
2.690 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.690 * [taylor]: Taking taylor expansion of y in x
2.690 * [taylor]: Taking taylor expansion of (* x y) in x
2.690 * [taylor]: Taking taylor expansion of x in x
2.690 * [taylor]: Taking taylor expansion of y in x
2.692 * [taylor]: Taking taylor expansion of (/ 2.0 y) in y
2.692 * [taylor]: Taking taylor expansion of 2.0 in y
2.692 * [taylor]: Taking taylor expansion of y in y
2.695 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
2.695 * [taylor]: Taking taylor expansion of 2.0 in y
2.695 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
2.695 * [taylor]: Taking taylor expansion of (pow y 2) in y
2.695 * [taylor]: Taking taylor expansion of y in y
2.701 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
2.701 * [taylor]: Taking taylor expansion of 2.0 in y
2.701 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
2.701 * [taylor]: Taking taylor expansion of (pow y 3) in y
2.701 * [taylor]: Taking taylor expansion of y in y
2.709 * [approximate]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in (x y) around 0
2.709 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in y
2.709 * [taylor]: Taking taylor expansion of 2.0 in y
2.709 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in y
2.709 * [taylor]: Taking taylor expansion of x in y
2.709 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
2.709 * [taylor]: Taking taylor expansion of y in y
2.709 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
2.709 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.709 * [taylor]: Taking taylor expansion of y in y
2.709 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.709 * [taylor]: Taking taylor expansion of x in y
2.711 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
2.711 * [taylor]: Taking taylor expansion of 2.0 in x
2.711 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
2.711 * [taylor]: Taking taylor expansion of x in x
2.711 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
2.711 * [taylor]: Taking taylor expansion of y in x
2.711 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.711 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.711 * [taylor]: Taking taylor expansion of y in x
2.711 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.711 * [taylor]: Taking taylor expansion of x in x
2.713 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
2.713 * [taylor]: Taking taylor expansion of 2.0 in x
2.713 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
2.713 * [taylor]: Taking taylor expansion of x in x
2.713 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
2.713 * [taylor]: Taking taylor expansion of y in x
2.713 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.713 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.713 * [taylor]: Taking taylor expansion of y in x
2.713 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.713 * [taylor]: Taking taylor expansion of x in x
2.715 * [taylor]: Taking taylor expansion of (/ -2.0 y) in y
2.716 * [taylor]: Taking taylor expansion of -2.0 in y
2.716 * [taylor]: Taking taylor expansion of y in y
2.718 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
2.718 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
2.718 * [taylor]: Taking taylor expansion of 2.0 in y
2.718 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
2.718 * [taylor]: Taking taylor expansion of (pow y 2) in y
2.718 * [taylor]: Taking taylor expansion of y in y
2.724 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 3)))) in y
2.724 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
2.724 * [taylor]: Taking taylor expansion of 2.0 in y
2.724 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
2.724 * [taylor]: Taking taylor expansion of (pow y 3) in y
2.724 * [taylor]: Taking taylor expansion of y in y
2.732 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
2.732 * [approximate]: Taking taylor expansion of (* 2.0 (/ x (- x y))) in (x y) around 0
2.732 * [taylor]: Taking taylor expansion of (* 2.0 (/ x (- x y))) in y
2.732 * [taylor]: Taking taylor expansion of 2.0 in y
2.732 * [taylor]: Taking taylor expansion of (/ x (- x y)) in y
2.732 * [taylor]: Taking taylor expansion of x in y
2.732 * [taylor]: Taking taylor expansion of (- x y) in y
2.732 * [taylor]: Taking taylor expansion of x in y
2.732 * [taylor]: Taking taylor expansion of y in y
2.733 * [taylor]: Taking taylor expansion of (* 2.0 (/ x (- x y))) in x
2.733 * [taylor]: Taking taylor expansion of 2.0 in x
2.733 * [taylor]: Taking taylor expansion of (/ x (- x y)) in x
2.733 * [taylor]: Taking taylor expansion of x in x
2.733 * [taylor]: Taking taylor expansion of (- x y) in x
2.733 * [taylor]: Taking taylor expansion of x in x
2.733 * [taylor]: Taking taylor expansion of y in x
2.733 * [taylor]: Taking taylor expansion of (* 2.0 (/ x (- x y))) in x
2.733 * [taylor]: Taking taylor expansion of 2.0 in x
2.733 * [taylor]: Taking taylor expansion of (/ x (- x y)) in x
2.733 * [taylor]: Taking taylor expansion of x in x
2.733 * [taylor]: Taking taylor expansion of (- x y) in x
2.733 * [taylor]: Taking taylor expansion of x in x
2.733 * [taylor]: Taking taylor expansion of y in x
2.733 * [taylor]: Taking taylor expansion of (/ -2.0 y) in y
2.733 * [taylor]: Taking taylor expansion of -2.0 in y
2.733 * [taylor]: Taking taylor expansion of y in y
2.735 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
2.735 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
2.735 * [taylor]: Taking taylor expansion of 2.0 in y
2.735 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
2.735 * [taylor]: Taking taylor expansion of (pow y 2) in y
2.735 * [taylor]: Taking taylor expansion of y in y
2.739 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 3)))) in y
2.739 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
2.739 * [taylor]: Taking taylor expansion of 2.0 in y
2.739 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
2.739 * [taylor]: Taking taylor expansion of (pow y 3) in y
2.739 * [taylor]: Taking taylor expansion of y in y
2.750 * [approximate]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) x)) in (x y) around 0
2.750 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) x)) in y
2.750 * [taylor]: Taking taylor expansion of 2.0 in y
2.750 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) x) in y
2.750 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
2.750 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.750 * [taylor]: Taking taylor expansion of x in y
2.750 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.750 * [taylor]: Taking taylor expansion of y in y
2.751 * [taylor]: Taking taylor expansion of x in y
2.751 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) x)) in x
2.751 * [taylor]: Taking taylor expansion of 2.0 in x
2.751 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) x) in x
2.751 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.751 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.751 * [taylor]: Taking taylor expansion of x in x
2.752 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.752 * [taylor]: Taking taylor expansion of y in x
2.752 * [taylor]: Taking taylor expansion of x in x
2.753 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) x)) in x
2.753 * [taylor]: Taking taylor expansion of 2.0 in x
2.753 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) x) in x
2.753 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.753 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.753 * [taylor]: Taking taylor expansion of x in x
2.754 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.754 * [taylor]: Taking taylor expansion of y in x
2.754 * [taylor]: Taking taylor expansion of x in x
2.755 * [taylor]: Taking taylor expansion of 2.0 in y
2.758 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
2.758 * [taylor]: Taking taylor expansion of 2.0 in y
2.758 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.758 * [taylor]: Taking taylor expansion of y in y
2.762 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
2.762 * [taylor]: Taking taylor expansion of 2.0 in y
2.762 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
2.762 * [taylor]: Taking taylor expansion of (pow y 2) in y
2.762 * [taylor]: Taking taylor expansion of y in y
2.767 * [approximate]: Taking taylor expansion of (/ -2.0 (* x (- (/ 1 y) (/ 1 x)))) in (x y) around 0
2.767 * [taylor]: Taking taylor expansion of (/ -2.0 (* x (- (/ 1 y) (/ 1 x)))) in y
2.767 * [taylor]: Taking taylor expansion of -2.0 in y
2.767 * [taylor]: Taking taylor expansion of (* x (- (/ 1 y) (/ 1 x))) in y
2.767 * [taylor]: Taking taylor expansion of x in y
2.767 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
2.767 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.767 * [taylor]: Taking taylor expansion of y in y
2.767 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.767 * [taylor]: Taking taylor expansion of x in y
2.768 * [taylor]: Taking taylor expansion of (/ -2.0 (* x (- (/ 1 y) (/ 1 x)))) in x
2.768 * [taylor]: Taking taylor expansion of -2.0 in x
2.768 * [taylor]: Taking taylor expansion of (* x (- (/ 1 y) (/ 1 x))) in x
2.768 * [taylor]: Taking taylor expansion of x in x
2.768 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.768 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.768 * [taylor]: Taking taylor expansion of y in x
2.768 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.768 * [taylor]: Taking taylor expansion of x in x
2.770 * [taylor]: Taking taylor expansion of (/ -2.0 (* x (- (/ 1 y) (/ 1 x)))) in x
2.770 * [taylor]: Taking taylor expansion of -2.0 in x
2.770 * [taylor]: Taking taylor expansion of (* x (- (/ 1 y) (/ 1 x))) in x
2.770 * [taylor]: Taking taylor expansion of x in x
2.770 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.770 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.770 * [taylor]: Taking taylor expansion of y in x
2.770 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.771 * [taylor]: Taking taylor expansion of x in x
2.773 * [taylor]: Taking taylor expansion of 2.0 in y
2.775 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
2.775 * [taylor]: Taking taylor expansion of 2.0 in y
2.775 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.775 * [taylor]: Taking taylor expansion of y in y
2.780 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
2.780 * [taylor]: Taking taylor expansion of 2.0 in y
2.780 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
2.780 * [taylor]: Taking taylor expansion of (pow y 2) in y
2.780 * [taylor]: Taking taylor expansion of y in y
2.785 * * * [progress]: simplifying candidates
2.785 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (/ (* x 2.0) (- x y)) y)
  (+ (- (+ (log x) (log 2.0)) (log (- x y))) (log y))
  (+ (- (log (* x 2.0)) (log (- x y))) (log y))
  (+ (log (/ (* x 2.0) (- x y))) (log y))
  (log (* (/ (* x 2.0) (- x y)) y))
  (exp (* (/ (* x 2.0) (- x y)) y))
  (* (/ (* (* (* x x) x) (* (* 2.0 2.0) 2.0)) (* (* (- x y) (- x y)) (- x y))) (* (* y y) y))
  (* (/ (* (* (* x 2.0) (* x 2.0)) (* x 2.0)) (* (* (- x y) (- x y)) (- x y))) (* (* y y) y))
  (* (* (* (/ (* x 2.0) (- x y)) (/ (* x 2.0) (- x y))) (/ (* x 2.0) (- x y))) (* (* y y) y))
  (* (cbrt (* (/ (* x 2.0) (- x y)) y)) (cbrt (* (/ (* x 2.0) (- x y)) y)))
  (cbrt (* (/ (* x 2.0) (- x y)) y))
  (* (* (* (/ (* x 2.0) (- x y)) y) (* (/ (* x 2.0) (- x y)) y)) (* (/ (* x 2.0) (- x y)) y))
  (sqrt (* (/ (* x 2.0) (- x y)) y))
  (sqrt (* (/ (* x 2.0) (- x y)) y))
  (* (sqrt (/ (* x 2.0) (- x y))) (sqrt y))
  (* (sqrt (/ (* x 2.0) (- x y))) (sqrt y))
  (* (/ (* x 2.0) (- x y)) (* (cbrt y) (cbrt y)))
  (* (/ (* x 2.0) (- x y)) (sqrt y))
  (* (/ (* x 2.0) (- x y)) 1)
  (* (cbrt (/ (* x 2.0) (- x y))) y)
  (* (sqrt (/ (* x 2.0) (- x y))) y)
  (* (/ 2.0 (cbrt (- x y))) y)
  (* (/ 2.0 (sqrt (- x y))) y)
  (* (/ 2.0 (- x y)) y)
  (* (/ 2.0 (- (sqrt x) (sqrt y))) y)
  (* (/ 2.0 (- x y)) y)
  (* (/ (* x 2.0) (- x y)) y)
  (* (/ 1 (- x y)) y)
  (* (+ (* x x) (+ (* y y) (* x y))) y)
  (* (+ x y) y)
  (* (* x 2.0) y)
  (- (+ (log x) (log 2.0)) (log (- x y)))
  (- (log (* x 2.0)) (log (- x y)))
  (log (/ (* x 2.0) (- x y)))
  (exp (/ (* x 2.0) (- x y)))
  (/ (* (* (* x x) x) (* (* 2.0 2.0) 2.0)) (* (* (- x y) (- x y)) (- x y)))
  (/ (* (* (* x 2.0) (* x 2.0)) (* x 2.0)) (* (* (- x y) (- x y)) (- x y)))
  (* (cbrt (/ (* x 2.0) (- x y))) (cbrt (/ (* x 2.0) (- x y))))
  (cbrt (/ (* x 2.0) (- x y)))
  (* (* (/ (* x 2.0) (- x y)) (/ (* x 2.0) (- x y))) (/ (* x 2.0) (- x y)))
  (sqrt (/ (* x 2.0) (- x y)))
  (sqrt (/ (* x 2.0) (- x y)))
  (- (* x 2.0))
  (- (- x y))
  (/ x (* (cbrt (- x y)) (cbrt (- x y))))
  (/ 2.0 (cbrt (- x y)))
  (/ x (sqrt (- x y)))
  (/ 2.0 (sqrt (- x y)))
  (/ x 1)
  (/ 2.0 (- x y))
  (/ x (+ (sqrt x) (sqrt y)))
  (/ 2.0 (- (sqrt x) (sqrt y)))
  (/ x 1)
  (/ 2.0 (- x y))
  (/ 1 (- x y))
  (/ (- x y) (* x 2.0))
  (/ (* x 2.0) (* (cbrt (- x y)) (cbrt (- x y))))
  (/ (* x 2.0) (sqrt (- x y)))
  (/ (* x 2.0) 1)
  (/ (* x 2.0) (+ (sqrt x) (sqrt y)))
  (/ (* x 2.0) 1)
  (/ (- x y) 2.0)
  (/ (* x 2.0) (- (pow x 3) (pow y 3)))
  (/ (* x 2.0) (- (* x x) (* y y)))
  0
  0
  0
  0
  0
  0
2.788 * * [simplify]: iteration  0 :  101  enodes  (cost  681 )
2.808 * * [simplify]: iteration  1 :  261  enodes  (cost  650 )
2.889 * * [simplify]: iteration  2 :  995  enodes  (cost  544 )
3.339 * * [simplify]: iteration  done :  5000  enodes  (cost  544 )
3.340 * [simplify]: Simplified to:
   (* (/ (* x 2.0) (- x y)) y)
  (log (* (/ (* x 2.0) (- x y)) y))
  (log (* (/ (* x 2.0) (- x y)) y))
  (log (* (/ (* x 2.0) (- x y)) y))
  (log (* (/ (* x 2.0) (- x y)) y))
  (exp (* (/ (* x 2.0) (- x y)) y))
  (pow (* (/ (* x 2.0) (- x y)) y) 3)
  (pow (* (/ (* x 2.0) (- x y)) y) 3)
  (pow (* (/ (* x 2.0) (- x y)) y) 3)
  (* (cbrt (* (/ (* x 2.0) (- x y)) y)) (cbrt (* (/ (* x 2.0) (- x y)) y)))
  (cbrt (* (/ (* x 2.0) (- x y)) y))
  (pow (* (/ (* x 2.0) (- x y)) y) 3)
  (sqrt (* (/ (* x 2.0) (- x y)) y))
  (sqrt (* (/ (* x 2.0) (- x y)) y))
  (* (sqrt (/ (* x 2.0) (- x y))) (sqrt y))
  (* (sqrt (/ (* x 2.0) (- x y))) (sqrt y))
  (* (/ (* x 2.0) (- x y)) (* (cbrt y) (cbrt y)))
  (* (/ (* x 2.0) (- x y)) (sqrt y))
  (/ (* x 2.0) (- x y))
  (* (cbrt (/ (* x 2.0) (- x y))) y)
  (* (sqrt (/ (* x 2.0) (- x y))) y)
  (* (/ 2.0 (cbrt (- x y))) y)
  (* (/ 2.0 (sqrt (- x y))) y)
  (* (/ 2.0 (- x y)) y)
  (* (/ 2.0 (- (sqrt x) (sqrt y))) y)
  (* (/ 2.0 (- x y)) y)
  (* (/ (* x 2.0) (- x y)) y)
  (/ y (- x y))
  (* (+ (* (+ x y) y) (* x x)) y)
  (* (+ x y) y)
  (* (* x 2.0) y)
  (log (/ (* x 2.0) (- x y)))
  (log (/ (* x 2.0) (- x y)))
  (log (/ (* x 2.0) (- x y)))
  (exp (/ (* x 2.0) (- x y)))
  (pow (/ (* x 2.0) (- x y)) 3)
  (pow (/ (* x 2.0) (- x y)) 3)
  (* (cbrt (/ (* x 2.0) (- x y))) (cbrt (/ (* x 2.0) (- x y))))
  (cbrt (/ (* x 2.0) (- x y)))
  (pow (/ (* x 2.0) (- x y)) 3)
  (sqrt (/ (* x 2.0) (- x y)))
  (sqrt (/ (* x 2.0) (- x y)))
  (- (* x 2.0))
  (- (- x y))
  (/ x (* (cbrt (- x y)) (cbrt (- x y))))
  (/ 2.0 (cbrt (- x y)))
  (/ x (sqrt (- x y)))
  (/ 2.0 (sqrt (- x y)))
  x
  (/ 2.0 (- x y))
  (/ x (+ (sqrt x) (sqrt y)))
  (/ 2.0 (- (sqrt x) (sqrt y)))
  x
  (/ 2.0 (- x y))
  (/ 1 (- x y))
  (/ (- x y) (* x 2.0))
  (/ (* x 2.0) (* (cbrt (- x y)) (cbrt (- x y))))
  (/ (* x 2.0) (sqrt (- x y)))
  (* 2.0 x)
  (/ (* x 2.0) (+ (sqrt x) (sqrt y)))
  (* 2.0 x)
  (/ (- x y) 2.0)
  (/ (* x 2.0) (- (pow x 3) (pow y 3)))
  (/ (* x 2.0) (- (* x x) (* y y)))
  0
  0
  0
  0
  0
  0
3.340 * * * [progress]: adding candidates to table
3.617 * [progress]: [Phase 3 of 3] Extracting.
3.617 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (/ (/ (* x 2.0) (- x y)) (/ 1 y)))> #<alt (λ (x y) (* (* x 2.0) (/ y (- x y))))> #<alt (λ (x y) (* (/ (* x 2.0) (- x y)) y))>)
3.618 * * * [regime-changes]: Trying 2 branch expressions: (y x)
3.618 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (/ (/ (* x 2.0) (- x y)) (/ 1 y)))> #<alt (λ (x y) (* (* x 2.0) (/ y (- x y))))> #<alt (λ (x y) (* (/ (* x 2.0) (- x y)) y))>)
3.640 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (/ (/ (* x 2.0) (- x y)) (/ 1 y)))> #<alt (λ (x y) (* (* x 2.0) (/ y (- x y))))> #<alt (λ (x y) (* (/ (* x 2.0) (- x y)) y))>)
3.662 * * * [regime]: Found split indices: #<option (#s(si 1 59) #s(si 2 179) #s(si 1 255))>
3.662 * [binary-search]: Improving bounds with binary search for y and (#<alt (λ (x y) (/ (/ (* x 2.0) (- x y)) (/ 1 y)))> #<alt (λ (x y) (* (* x 2.0) (/ y (- x y))))> #<alt (λ (x y) (* (/ (* x 2.0) (- x y)) y))>)
3.713 * [regimes]: Found splitpoints: (#s(sp 1 y -1.8379060927151348e+37) #s(sp 2 y 2.535580169146477e-106) #s(sp 1 y +nan.0)) , with alts (#<alt (λ (x y) (/ (/ (* x 2.0) (- x y)) (/ 1 y)))> #<alt (λ (x y) (* (* x 2.0) (/ y (- x y))))> #<alt (λ (x y) (* (/ (* x 2.0) (- x y)) y))>)
3.713 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (if (<= y -1.8379060927151348e+37) (* (* x 2.0) (/ y (- x y))) (if (<= y 2.535580169146477e-106) (* (/ (* x 2.0) (- x y)) y) (* (* x 2.0) (/ y (- x y)))))
3.714 * * [simplify]: iteration  0 :  15  enodes  (cost  35 )
3.714 * * [simplify]: iteration  1 :  21  enodes  (cost  27 )
3.715 * * [simplify]: iteration  done :  21  enodes  (cost  27 )
3.715 * [simplify]: Simplified to:
   (if (or (<= y -1.8379060927151348e+37) (not (<= y 2.535580169146477e-106))) (* (* x 2.0) (/ y (- x y))) (* (/ (* x 2.0) (- x y)) y))
4.104 * [regime-testing]: Baseline error score: 6.910169159825926
4.104 * [regime-testing]: Oracle error score: 0.05575696962120265
4.105 * [regime-testing]: End program error score: 0.38337826391764573
4.126 * [regime-testing]: Target error score: 0.39645597079671974