2.350 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.013 * * * [progress]: [2/2] Setting up program.
0.015 * [progress]: [Phase 2 of 3] Improving.
0.015 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (* (* x 2.0) y) (- x y))
0.016 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
0.017 * * [simplify]: iteration  1 :  15  enodes  (cost  9 )
0.019 * * [simplify]: iteration  2 :  35  enodes  (cost  9 )
0.030 * * [simplify]: iteration  3 :  71  enodes  (cost  9 )
0.039 * * [simplify]: iteration  4 :  122  enodes  (cost  9 )
0.052 * * [simplify]: iteration  5 :  158  enodes  (cost  9 )
0.070 * * [simplify]: iteration  6 :  176  enodes  (cost  9 )
0.092 * * [simplify]: iteration  7 :  181  enodes  (cost  9 )
0.111 * * [simplify]: iteration  done :  181  enodes  (cost  9 )
0.111 * [simplify]: Simplified to:
   (/ (* (* x 2.0) y) (- x y))
0.111 * * [progress]: iteration 1 / 4
0.111 * * * [progress]: picking best candidate
0.113 * * * * [pick]: Picked  #<alt (λ (x y) (/ (* (* x 2.0) y) (- x y)))>
0.113 * * * [progress]: localizing error
0.119 * * * [progress]: generating rewritten candidates
0.119 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.134 * * * [progress]: generating series expansions
0.134 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.134 * [approximate]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in (x y) around 0
0.134 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in y
0.134 * [taylor]: Taking taylor expansion of 2.0 in y
0.134 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in y
0.134 * [taylor]: Taking taylor expansion of (* x y) in y
0.134 * [taylor]: Taking taylor expansion of x in y
0.134 * [taylor]: Taking taylor expansion of y in y
0.134 * [taylor]: Taking taylor expansion of (- x y) in y
0.134 * [taylor]: Taking taylor expansion of x in y
0.134 * [taylor]: Taking taylor expansion of y in y
0.135 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
0.135 * [taylor]: Taking taylor expansion of 2.0 in x
0.135 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
0.135 * [taylor]: Taking taylor expansion of (* x y) in x
0.135 * [taylor]: Taking taylor expansion of x in x
0.135 * [taylor]: Taking taylor expansion of y in x
0.135 * [taylor]: Taking taylor expansion of (- x y) in x
0.135 * [taylor]: Taking taylor expansion of x in x
0.135 * [taylor]: Taking taylor expansion of y in x
0.136 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
0.136 * [taylor]: Taking taylor expansion of 2.0 in x
0.136 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
0.136 * [taylor]: Taking taylor expansion of (* x y) in x
0.136 * [taylor]: Taking taylor expansion of x in x
0.136 * [taylor]: Taking taylor expansion of y in x
0.136 * [taylor]: Taking taylor expansion of (- x y) in x
0.136 * [taylor]: Taking taylor expansion of x in x
0.136 * [taylor]: Taking taylor expansion of y in x
0.137 * [taylor]: Taking taylor expansion of -2.0 in y
0.138 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 y))) in y
0.138 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
0.138 * [taylor]: Taking taylor expansion of 2.0 in y
0.138 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.138 * [taylor]: Taking taylor expansion of y in y
0.142 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
0.142 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
0.142 * [taylor]: Taking taylor expansion of 2.0 in y
0.142 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.142 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.142 * [taylor]: Taking taylor expansion of y in y
0.148 * [approximate]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in (x y) around 0
0.148 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in y
0.148 * [taylor]: Taking taylor expansion of 2.0 in y
0.148 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in y
0.148 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.148 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.148 * [taylor]: Taking taylor expansion of x in y
0.148 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.148 * [taylor]: Taking taylor expansion of y in y
0.149 * [taylor]: Taking taylor expansion of (* x y) in y
0.149 * [taylor]: Taking taylor expansion of x in y
0.149 * [taylor]: Taking taylor expansion of y in y
0.151 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.151 * [taylor]: Taking taylor expansion of 2.0 in x
0.151 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.151 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.151 * [taylor]: Taking taylor expansion of x in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.151 * [taylor]: Taking taylor expansion of y in x
0.151 * [taylor]: Taking taylor expansion of (* x y) in x
0.151 * [taylor]: Taking taylor expansion of x in x
0.151 * [taylor]: Taking taylor expansion of y in x
0.153 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.153 * [taylor]: Taking taylor expansion of 2.0 in x
0.153 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.153 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.153 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.153 * [taylor]: Taking taylor expansion of x in x
0.153 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.153 * [taylor]: Taking taylor expansion of y in x
0.153 * [taylor]: Taking taylor expansion of (* x y) in x
0.153 * [taylor]: Taking taylor expansion of x in x
0.153 * [taylor]: Taking taylor expansion of y in x
0.155 * [taylor]: Taking taylor expansion of (/ 2.0 y) in y
0.155 * [taylor]: Taking taylor expansion of 2.0 in y
0.155 * [taylor]: Taking taylor expansion of y in y
0.158 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
0.158 * [taylor]: Taking taylor expansion of 2.0 in y
0.158 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.158 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.158 * [taylor]: Taking taylor expansion of y in y
0.164 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
0.164 * [taylor]: Taking taylor expansion of 2.0 in y
0.164 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
0.164 * [taylor]: Taking taylor expansion of (pow y 3) in y
0.164 * [taylor]: Taking taylor expansion of y in y
0.172 * [approximate]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in (x y) around 0
0.173 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in y
0.173 * [taylor]: Taking taylor expansion of 2.0 in y
0.173 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in y
0.173 * [taylor]: Taking taylor expansion of x in y
0.173 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
0.173 * [taylor]: Taking taylor expansion of y in y
0.173 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.173 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.173 * [taylor]: Taking taylor expansion of y in y
0.173 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.173 * [taylor]: Taking taylor expansion of x in y
0.175 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.175 * [taylor]: Taking taylor expansion of 2.0 in x
0.175 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.175 * [taylor]: Taking taylor expansion of x in x
0.175 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.175 * [taylor]: Taking taylor expansion of y in x
0.175 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.175 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.175 * [taylor]: Taking taylor expansion of y in x
0.175 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.175 * [taylor]: Taking taylor expansion of x in x
0.177 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.177 * [taylor]: Taking taylor expansion of 2.0 in x
0.177 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.177 * [taylor]: Taking taylor expansion of x in x
0.177 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.177 * [taylor]: Taking taylor expansion of y in x
0.177 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.177 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.177 * [taylor]: Taking taylor expansion of y in x
0.177 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.177 * [taylor]: Taking taylor expansion of x in x
0.179 * [taylor]: Taking taylor expansion of (/ -2.0 y) in y
0.179 * [taylor]: Taking taylor expansion of -2.0 in y
0.179 * [taylor]: Taking taylor expansion of y in y
0.182 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
0.182 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
0.182 * [taylor]: Taking taylor expansion of 2.0 in y
0.182 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.182 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.182 * [taylor]: Taking taylor expansion of y in y
0.189 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 3)))) in y
0.189 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
0.189 * [taylor]: Taking taylor expansion of 2.0 in y
0.189 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
0.189 * [taylor]: Taking taylor expansion of (pow y 3) in y
0.189 * [taylor]: Taking taylor expansion of y in y
0.197 * * * [progress]: simplifying candidates
0.198 * [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
0.200 * * [simplify]: iteration  0 :  77  enodes  (cost  400 )
0.219 * * [simplify]: iteration  1 :  218  enodes  (cost  380 )
0.272 * * [simplify]: iteration  2 :  1077  enodes  (cost  314 )
0.578 * * [simplify]: iteration  done :  5000  enodes  (cost  314 )
0.578 * [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
0.578 * * * [progress]: adding candidates to table
0.630 * * [progress]: iteration 2 / 4
0.630 * * * [progress]: picking best candidate
0.636 * * * * [pick]: Picked  #<alt (λ (x y) (* (* x 2.0) (/ y (- x y))))>
0.636 * * * [progress]: localizing error
0.642 * * * [progress]: generating rewritten candidates
0.642 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.658 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
0.666 * * * [progress]: generating series expansions
0.666 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.667 * [approximate]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in (x y) around 0
0.667 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in y
0.667 * [taylor]: Taking taylor expansion of 2.0 in y
0.667 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in y
0.667 * [taylor]: Taking taylor expansion of (* x y) in y
0.667 * [taylor]: Taking taylor expansion of x in y
0.667 * [taylor]: Taking taylor expansion of y in y
0.667 * [taylor]: Taking taylor expansion of (- x y) in y
0.667 * [taylor]: Taking taylor expansion of x in y
0.667 * [taylor]: Taking taylor expansion of y in y
0.667 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
0.668 * [taylor]: Taking taylor expansion of 2.0 in x
0.668 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
0.668 * [taylor]: Taking taylor expansion of (* x y) in x
0.668 * [taylor]: Taking taylor expansion of x in x
0.668 * [taylor]: Taking taylor expansion of y in x
0.668 * [taylor]: Taking taylor expansion of (- x y) in x
0.668 * [taylor]: Taking taylor expansion of x in x
0.668 * [taylor]: Taking taylor expansion of y in x
0.668 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
0.668 * [taylor]: Taking taylor expansion of 2.0 in x
0.668 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
0.668 * [taylor]: Taking taylor expansion of (* x y) in x
0.668 * [taylor]: Taking taylor expansion of x in x
0.668 * [taylor]: Taking taylor expansion of y in x
0.668 * [taylor]: Taking taylor expansion of (- x y) in x
0.668 * [taylor]: Taking taylor expansion of x in x
0.668 * [taylor]: Taking taylor expansion of y in x
0.669 * [taylor]: Taking taylor expansion of -2.0 in y
0.670 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 y))) in y
0.670 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
0.670 * [taylor]: Taking taylor expansion of 2.0 in y
0.670 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.670 * [taylor]: Taking taylor expansion of y in y
0.674 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
0.674 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
0.674 * [taylor]: Taking taylor expansion of 2.0 in y
0.674 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.674 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.674 * [taylor]: Taking taylor expansion of y in y
0.680 * [approximate]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in (x y) around 0
0.680 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in y
0.680 * [taylor]: Taking taylor expansion of 2.0 in y
0.680 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in y
0.680 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.680 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.680 * [taylor]: Taking taylor expansion of x in y
0.680 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.680 * [taylor]: Taking taylor expansion of y in y
0.680 * [taylor]: Taking taylor expansion of (* x y) in y
0.680 * [taylor]: Taking taylor expansion of x in y
0.680 * [taylor]: Taking taylor expansion of y in y
0.682 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.682 * [taylor]: Taking taylor expansion of 2.0 in x
0.682 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.682 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.682 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.682 * [taylor]: Taking taylor expansion of x in x
0.682 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.682 * [taylor]: Taking taylor expansion of y in x
0.682 * [taylor]: Taking taylor expansion of (* x y) in x
0.682 * [taylor]: Taking taylor expansion of x in x
0.682 * [taylor]: Taking taylor expansion of y in x
0.684 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.684 * [taylor]: Taking taylor expansion of 2.0 in x
0.684 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.684 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.684 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.684 * [taylor]: Taking taylor expansion of x in x
0.684 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.684 * [taylor]: Taking taylor expansion of y in x
0.684 * [taylor]: Taking taylor expansion of (* x y) in x
0.684 * [taylor]: Taking taylor expansion of x in x
0.684 * [taylor]: Taking taylor expansion of y in x
0.685 * [taylor]: Taking taylor expansion of (/ 2.0 y) in y
0.685 * [taylor]: Taking taylor expansion of 2.0 in y
0.685 * [taylor]: Taking taylor expansion of y in y
0.693 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
0.693 * [taylor]: Taking taylor expansion of 2.0 in y
0.693 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.693 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.693 * [taylor]: Taking taylor expansion of y in y
0.700 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
0.700 * [taylor]: Taking taylor expansion of 2.0 in y
0.700 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
0.700 * [taylor]: Taking taylor expansion of (pow y 3) in y
0.700 * [taylor]: Taking taylor expansion of y in y
0.708 * [approximate]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in (x y) around 0
0.708 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in y
0.708 * [taylor]: Taking taylor expansion of 2.0 in y
0.708 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in y
0.708 * [taylor]: Taking taylor expansion of x in y
0.708 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
0.708 * [taylor]: Taking taylor expansion of y in y
0.708 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.708 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.708 * [taylor]: Taking taylor expansion of y in y
0.708 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.708 * [taylor]: Taking taylor expansion of x in y
0.710 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.710 * [taylor]: Taking taylor expansion of 2.0 in x
0.710 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.710 * [taylor]: Taking taylor expansion of x in x
0.710 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.710 * [taylor]: Taking taylor expansion of y in x
0.710 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.710 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.710 * [taylor]: Taking taylor expansion of y in x
0.710 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.710 * [taylor]: Taking taylor expansion of x in x
0.712 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.712 * [taylor]: Taking taylor expansion of 2.0 in x
0.712 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.712 * [taylor]: Taking taylor expansion of x in x
0.712 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.712 * [taylor]: Taking taylor expansion of y in x
0.712 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.712 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.712 * [taylor]: Taking taylor expansion of y in x
0.712 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.712 * [taylor]: Taking taylor expansion of x in x
0.714 * [taylor]: Taking taylor expansion of (/ -2.0 y) in y
0.714 * [taylor]: Taking taylor expansion of -2.0 in y
0.714 * [taylor]: Taking taylor expansion of y in y
0.717 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
0.717 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
0.717 * [taylor]: Taking taylor expansion of 2.0 in y
0.717 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.717 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.717 * [taylor]: Taking taylor expansion of y in y
0.723 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 3)))) in y
0.723 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
0.723 * [taylor]: Taking taylor expansion of 2.0 in y
0.723 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
0.724 * [taylor]: Taking taylor expansion of (pow y 3) in y
0.724 * [taylor]: Taking taylor expansion of y in y
0.732 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
0.732 * [approximate]: Taking taylor expansion of (/ y (- x y)) in (y x) around 0
0.732 * [taylor]: Taking taylor expansion of (/ y (- x y)) in x
0.732 * [taylor]: Taking taylor expansion of y in x
0.732 * [taylor]: Taking taylor expansion of (- x y) in x
0.732 * [taylor]: Taking taylor expansion of x in x
0.732 * [taylor]: Taking taylor expansion of y in x
0.732 * [taylor]: Taking taylor expansion of (/ y (- x y)) in y
0.732 * [taylor]: Taking taylor expansion of y in y
0.732 * [taylor]: Taking taylor expansion of (- x y) in y
0.732 * [taylor]: Taking taylor expansion of x in y
0.732 * [taylor]: Taking taylor expansion of y in y
0.732 * [taylor]: Taking taylor expansion of (/ y (- x y)) in y
0.732 * [taylor]: Taking taylor expansion of y in y
0.732 * [taylor]: Taking taylor expansion of (- x y) in y
0.732 * [taylor]: Taking taylor expansion of x in y
0.732 * [taylor]: Taking taylor expansion of y in y
0.733 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.733 * [taylor]: Taking taylor expansion of x in x
0.734 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.734 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.734 * [taylor]: Taking taylor expansion of x in x
0.738 * [taylor]: Taking taylor expansion of (/ 1 (pow x 3)) in x
0.738 * [taylor]: Taking taylor expansion of (pow x 3) in x
0.738 * [taylor]: Taking taylor expansion of x in x
0.744 * [approximate]: Taking taylor expansion of (/ 1 (* (- (/ 1 x) (/ 1 y)) y)) in (y x) around 0
0.744 * [taylor]: Taking taylor expansion of (/ 1 (* (- (/ 1 x) (/ 1 y)) y)) in x
0.744 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
0.744 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.744 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.744 * [taylor]: Taking taylor expansion of x in x
0.745 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.745 * [taylor]: Taking taylor expansion of y in x
0.745 * [taylor]: Taking taylor expansion of y in x
0.745 * [taylor]: Taking taylor expansion of (/ 1 (* (- (/ 1 x) (/ 1 y)) y)) in y
0.745 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
0.745 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.745 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.745 * [taylor]: Taking taylor expansion of x in y
0.745 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.745 * [taylor]: Taking taylor expansion of y in y
0.746 * [taylor]: Taking taylor expansion of y in y
0.748 * [taylor]: Taking taylor expansion of (/ 1 (* (- (/ 1 x) (/ 1 y)) y)) in y
0.748 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
0.748 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.748 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.748 * [taylor]: Taking taylor expansion of x in y
0.748 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.748 * [taylor]: Taking taylor expansion of y in y
0.748 * [taylor]: Taking taylor expansion of y in y
0.750 * [taylor]: Taking taylor expansion of -1 in x
0.752 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.752 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.752 * [taylor]: Taking taylor expansion of x in x
0.756 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2))) in x
0.756 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.756 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.756 * [taylor]: Taking taylor expansion of x in x
0.761 * [approximate]: Taking taylor expansion of (/ -1 (* y (- (/ 1 y) (/ 1 x)))) in (y x) around 0
0.761 * [taylor]: Taking taylor expansion of (/ -1 (* y (- (/ 1 y) (/ 1 x)))) in x
0.761 * [taylor]: Taking taylor expansion of -1 in x
0.761 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.761 * [taylor]: Taking taylor expansion of y in x
0.761 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.761 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.761 * [taylor]: Taking taylor expansion of y in x
0.761 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.761 * [taylor]: Taking taylor expansion of x in x
0.762 * [taylor]: Taking taylor expansion of (/ -1 (* y (- (/ 1 y) (/ 1 x)))) in y
0.762 * [taylor]: Taking taylor expansion of -1 in y
0.762 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
0.762 * [taylor]: Taking taylor expansion of y in y
0.762 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.762 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.762 * [taylor]: Taking taylor expansion of y in y
0.762 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.762 * [taylor]: Taking taylor expansion of x in y
0.763 * [taylor]: Taking taylor expansion of (/ -1 (* y (- (/ 1 y) (/ 1 x)))) in y
0.763 * [taylor]: Taking taylor expansion of -1 in y
0.764 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
0.764 * [taylor]: Taking taylor expansion of y in y
0.764 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.764 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.764 * [taylor]: Taking taylor expansion of y in y
0.764 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.764 * [taylor]: Taking taylor expansion of x in y
0.766 * [taylor]: Taking taylor expansion of -1 in x
0.767 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x
0.768 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.768 * [taylor]: Taking taylor expansion of x in x
0.771 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2))) in x
0.771 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.771 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.772 * [taylor]: Taking taylor expansion of x in x
0.781 * * * [progress]: simplifying candidates
0.783 * [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
0.786 * * [simplify]: iteration  0 :  116  enodes  (cost  915 )
0.806 * * [simplify]: iteration  1 :  319  enodes  (cost  856 )
0.895 * * [simplify]: iteration  2 :  1494  enodes  (cost  756 )
1.520 * * [simplify]: iteration  done :  5001  enodes  (cost  756 )
1.520 * [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)) (* x 2.0))
  (* (* x 2.0) (/ (* (cbrt y) (cbrt y)) (+ (sqrt x) (sqrt y))))
  (* (* (cbrt y) (cbrt y)) (* x 2.0))
  (* (* 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))))
  (/ (* x 2.0) (sqrt (- x y)))
  (* x 2.0)
  (/ (* x 2.0) (+ (sqrt x) (sqrt y)))
  (* x 2.0)
  (* x 2.0)
  (* (* 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
1.573 * * * [progress]: adding candidates to table
1.717 * * [progress]: iteration 3 / 4
1.717 * * * [progress]: picking best candidate
1.721 * * * * [pick]: Picked  #<alt (λ (x y) (/ (* x 2.0) (/ (- x y) y)))>
1.722 * * * [progress]: localizing error
1.727 * * * [progress]: generating rewritten candidates
1.727 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
1.737 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
1.750 * * * [progress]: generating series expansions
1.751 * * * * [progress]: [ 1 / 2 ] generating series at (2)
1.751 * [approximate]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in (x y) around 0
1.751 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in y
1.751 * [taylor]: Taking taylor expansion of 2.0 in y
1.751 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in y
1.751 * [taylor]: Taking taylor expansion of (* x y) in y
1.751 * [taylor]: Taking taylor expansion of x in y
1.751 * [taylor]: Taking taylor expansion of y in y
1.751 * [taylor]: Taking taylor expansion of (- x y) in y
1.751 * [taylor]: Taking taylor expansion of x in y
1.751 * [taylor]: Taking taylor expansion of y in y
1.752 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
1.752 * [taylor]: Taking taylor expansion of 2.0 in x
1.752 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
1.752 * [taylor]: Taking taylor expansion of (* x y) in x
1.752 * [taylor]: Taking taylor expansion of x in x
1.752 * [taylor]: Taking taylor expansion of y in x
1.752 * [taylor]: Taking taylor expansion of (- x y) in x
1.752 * [taylor]: Taking taylor expansion of x in x
1.752 * [taylor]: Taking taylor expansion of y in x
1.752 * [taylor]: Taking taylor expansion of (* 2.0 (/ (* x y) (- x y))) in x
1.752 * [taylor]: Taking taylor expansion of 2.0 in x
1.752 * [taylor]: Taking taylor expansion of (/ (* x y) (- x y)) in x
1.752 * [taylor]: Taking taylor expansion of (* x y) in x
1.752 * [taylor]: Taking taylor expansion of x in x
1.752 * [taylor]: Taking taylor expansion of y in x
1.752 * [taylor]: Taking taylor expansion of (- x y) in x
1.753 * [taylor]: Taking taylor expansion of x in x
1.753 * [taylor]: Taking taylor expansion of y in x
1.753 * [taylor]: Taking taylor expansion of -2.0 in y
1.755 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 y))) in y
1.755 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
1.755 * [taylor]: Taking taylor expansion of 2.0 in y
1.755 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.755 * [taylor]: Taking taylor expansion of y in y
1.759 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
1.759 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
1.759 * [taylor]: Taking taylor expansion of 2.0 in y
1.759 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
1.759 * [taylor]: Taking taylor expansion of (pow y 2) in y
1.759 * [taylor]: Taking taylor expansion of y in y
1.765 * [approximate]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in (x y) around 0
1.765 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in y
1.765 * [taylor]: Taking taylor expansion of 2.0 in y
1.765 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in y
1.765 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
1.765 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.765 * [taylor]: Taking taylor expansion of x in y
1.765 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.766 * [taylor]: Taking taylor expansion of y in y
1.766 * [taylor]: Taking taylor expansion of (* x y) in y
1.766 * [taylor]: Taking taylor expansion of x in y
1.766 * [taylor]: Taking taylor expansion of y in y
1.768 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
1.768 * [taylor]: Taking taylor expansion of 2.0 in x
1.768 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
1.768 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
1.768 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.768 * [taylor]: Taking taylor expansion of x in x
1.768 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.768 * [taylor]: Taking taylor expansion of y in x
1.768 * [taylor]: Taking taylor expansion of (* x y) in x
1.768 * [taylor]: Taking taylor expansion of x in x
1.768 * [taylor]: Taking taylor expansion of y in x
1.769 * [taylor]: Taking taylor expansion of (/ 2.0 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
1.769 * [taylor]: Taking taylor expansion of 2.0 in x
1.769 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
1.769 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
1.769 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.769 * [taylor]: Taking taylor expansion of x in x
1.770 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.770 * [taylor]: Taking taylor expansion of y in x
1.770 * [taylor]: Taking taylor expansion of (* x y) in x
1.770 * [taylor]: Taking taylor expansion of x in x
1.770 * [taylor]: Taking taylor expansion of y in x
1.771 * [taylor]: Taking taylor expansion of (/ 2.0 y) in y
1.771 * [taylor]: Taking taylor expansion of 2.0 in y
1.771 * [taylor]: Taking taylor expansion of y in y
1.774 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
1.775 * [taylor]: Taking taylor expansion of 2.0 in y
1.775 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
1.775 * [taylor]: Taking taylor expansion of (pow y 2) in y
1.775 * [taylor]: Taking taylor expansion of y in y
1.781 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
1.781 * [taylor]: Taking taylor expansion of 2.0 in y
1.781 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
1.781 * [taylor]: Taking taylor expansion of (pow y 3) in y
1.781 * [taylor]: Taking taylor expansion of y in y
1.789 * [approximate]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in (x y) around 0
1.789 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in y
1.789 * [taylor]: Taking taylor expansion of 2.0 in y
1.789 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in y
1.789 * [taylor]: Taking taylor expansion of x in y
1.789 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
1.789 * [taylor]: Taking taylor expansion of y in y
1.789 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
1.789 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.789 * [taylor]: Taking taylor expansion of y in y
1.789 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.789 * [taylor]: Taking taylor expansion of x in y
1.791 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
1.791 * [taylor]: Taking taylor expansion of 2.0 in x
1.791 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
1.791 * [taylor]: Taking taylor expansion of x in x
1.791 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
1.791 * [taylor]: Taking taylor expansion of y in x
1.791 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
1.791 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.791 * [taylor]: Taking taylor expansion of y in x
1.791 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.791 * [taylor]: Taking taylor expansion of x in x
1.793 * [taylor]: Taking taylor expansion of (/ 2.0 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
1.793 * [taylor]: Taking taylor expansion of 2.0 in x
1.793 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
1.793 * [taylor]: Taking taylor expansion of x in x
1.793 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
1.793 * [taylor]: Taking taylor expansion of y in x
1.793 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
1.793 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.793 * [taylor]: Taking taylor expansion of y in x
1.793 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.793 * [taylor]: Taking taylor expansion of x in x
1.795 * [taylor]: Taking taylor expansion of (/ -2.0 y) in y
1.796 * [taylor]: Taking taylor expansion of -2.0 in y
1.796 * [taylor]: Taking taylor expansion of y in y
1.798 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 2)))) in y
1.798 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 2))) in y
1.798 * [taylor]: Taking taylor expansion of 2.0 in y
1.798 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
1.798 * [taylor]: Taking taylor expansion of (pow y 2) in y
1.798 * [taylor]: Taking taylor expansion of y in y
1.804 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow y 3)))) in y
1.804 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow y 3))) in y
1.805 * [taylor]: Taking taylor expansion of 2.0 in y
1.805 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
1.805 * [taylor]: Taking taylor expansion of (pow y 3) in y
1.805 * [taylor]: Taking taylor expansion of y in y
1.814 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
1.814 * [approximate]: Taking taylor expansion of (/ (- x y) y) in (x y) around 0
1.814 * [taylor]: Taking taylor expansion of (/ (- x y) y) in y
1.814 * [taylor]: Taking taylor expansion of (- x y) in y
1.814 * [taylor]: Taking taylor expansion of x in y
1.814 * [taylor]: Taking taylor expansion of y in y
1.814 * [taylor]: Taking taylor expansion of y in y
1.814 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
1.814 * [taylor]: Taking taylor expansion of (- x y) in x
1.814 * [taylor]: Taking taylor expansion of x in x
1.814 * [taylor]: Taking taylor expansion of y in x
1.814 * [taylor]: Taking taylor expansion of y in x
1.814 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
1.814 * [taylor]: Taking taylor expansion of (- x y) in x
1.814 * [taylor]: Taking taylor expansion of x in x
1.814 * [taylor]: Taking taylor expansion of y in x
1.814 * [taylor]: Taking taylor expansion of y in x
1.815 * [taylor]: Taking taylor expansion of -1 in y
1.815 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.815 * [taylor]: Taking taylor expansion of y in y
1.816 * [taylor]: Taking taylor expansion of 0 in y
1.817 * [taylor]: Taking taylor expansion of 0 in y
1.818 * [taylor]: Taking taylor expansion of 0 in y
1.818 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in (x y) around 0
1.818 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
1.819 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
1.819 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.819 * [taylor]: Taking taylor expansion of x in y
1.819 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.819 * [taylor]: Taking taylor expansion of y in y
1.819 * [taylor]: Taking taylor expansion of y in y
1.819 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
1.819 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
1.819 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.819 * [taylor]: Taking taylor expansion of x in x
1.819 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.819 * [taylor]: Taking taylor expansion of y in x
1.819 * [taylor]: Taking taylor expansion of y in x
1.819 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
1.819 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
1.819 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.819 * [taylor]: Taking taylor expansion of x in x
1.820 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.820 * [taylor]: Taking taylor expansion of y in x
1.820 * [taylor]: Taking taylor expansion of y in x
1.820 * [taylor]: Taking taylor expansion of y in y
1.821 * [taylor]: Taking taylor expansion of (- 1) in y
1.821 * [taylor]: Taking taylor expansion of 1 in y
1.822 * [taylor]: Taking taylor expansion of 0 in y
1.824 * [taylor]: Taking taylor expansion of 0 in y
1.826 * [taylor]: Taking taylor expansion of 0 in y
1.827 * [approximate]: Taking taylor expansion of (* -1 (* y (- (/ 1 y) (/ 1 x)))) in (x y) around 0
1.827 * [taylor]: Taking taylor expansion of (* -1 (* y (- (/ 1 y) (/ 1 x)))) in y
1.827 * [taylor]: Taking taylor expansion of -1 in y
1.827 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
1.827 * [taylor]: Taking taylor expansion of y in y
1.827 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
1.827 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.827 * [taylor]: Taking taylor expansion of y in y
1.827 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.827 * [taylor]: Taking taylor expansion of x in y
1.827 * [taylor]: Taking taylor expansion of (* -1 (* y (- (/ 1 y) (/ 1 x)))) in x
1.827 * [taylor]: Taking taylor expansion of -1 in x
1.827 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
1.827 * [taylor]: Taking taylor expansion of y in x
1.827 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
1.827 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.827 * [taylor]: Taking taylor expansion of y in x
1.827 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.827 * [taylor]: Taking taylor expansion of x in x
1.828 * [taylor]: Taking taylor expansion of (* -1 (* y (- (/ 1 y) (/ 1 x)))) in x
1.828 * [taylor]: Taking taylor expansion of -1 in x
1.828 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
1.828 * [taylor]: Taking taylor expansion of y in x
1.828 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
1.828 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.828 * [taylor]: Taking taylor expansion of y in x
1.828 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.828 * [taylor]: Taking taylor expansion of x in x
1.829 * [taylor]: Taking taylor expansion of y in y
1.830 * [taylor]: Taking taylor expansion of (- 1) in y
1.830 * [taylor]: Taking taylor expansion of 1 in y
1.835 * [taylor]: Taking taylor expansion of 0 in y
1.838 * [taylor]: Taking taylor expansion of 0 in y
1.841 * [taylor]: Taking taylor expansion of 0 in y
1.841 * * * [progress]: simplifying candidates
1.843 * [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)
1.847 * * [simplify]: iteration  0 :  151  enodes  (cost  1250 )
1.872 * * [simplify]: iteration  1 :  393  enodes  (cost  1177 )