22.946 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.015 * * * [progress]: [2/2] Setting up program.
0.018 * [progress]: [Phase 2 of 3] Improving.
0.018 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (- x y) (* (* x 2.0) y))
0.018 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
0.019 * * [simplify]: iteration  1 :  18  enodes  (cost  9 )
0.022 * * [simplify]: iteration  2 :  47  enodes  (cost  9 )
0.029 * * [simplify]: iteration  3 :  104  enodes  (cost  9 )
0.043 * * [simplify]: iteration  4 :  148  enodes  (cost  9 )
0.064 * * [simplify]: iteration  5 :  172  enodes  (cost  9 )
0.083 * * [simplify]: iteration  6 :  187  enodes  (cost  9 )
0.104 * * [simplify]: iteration  7 :  192  enodes  (cost  9 )
0.126 * * [simplify]: iteration  done :  192  enodes  (cost  9 )
0.126 * [simplify]: Simplified to:
   (/ (- x y) (* (* x 2.0) y))
0.126 * * [progress]: iteration 1 / 4
0.126 * * * [progress]: picking best candidate
0.128 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- x y) (* (* x 2.0) y)))>
0.128 * * * [progress]: localizing error
0.134 * * * [progress]: generating rewritten candidates
0.134 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.144 * * * [progress]: generating series expansions
0.144 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.144 * [approximate]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in (x y) around 0
0.144 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in y
0.144 * [taylor]: Taking taylor expansion of 0.5 in y
0.144 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in y
0.144 * [taylor]: Taking taylor expansion of (- x y) in y
0.144 * [taylor]: Taking taylor expansion of x in y
0.144 * [taylor]: Taking taylor expansion of y in y
0.145 * [taylor]: Taking taylor expansion of (* x y) in y
0.145 * [taylor]: Taking taylor expansion of x in y
0.145 * [taylor]: Taking taylor expansion of y in y
0.145 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
0.145 * [taylor]: Taking taylor expansion of 0.5 in x
0.145 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
0.145 * [taylor]: Taking taylor expansion of (- x y) in x
0.145 * [taylor]: Taking taylor expansion of x in x
0.145 * [taylor]: Taking taylor expansion of y in x
0.145 * [taylor]: Taking taylor expansion of (* x y) in x
0.145 * [taylor]: Taking taylor expansion of x in x
0.145 * [taylor]: Taking taylor expansion of y in x
0.145 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
0.145 * [taylor]: Taking taylor expansion of 0.5 in x
0.145 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
0.145 * [taylor]: Taking taylor expansion of (- x y) in x
0.145 * [taylor]: Taking taylor expansion of x in x
0.145 * [taylor]: Taking taylor expansion of y in x
0.145 * [taylor]: Taking taylor expansion of (* x y) in x
0.145 * [taylor]: Taking taylor expansion of x in x
0.145 * [taylor]: Taking taylor expansion of y in x
0.145 * [taylor]: Taking taylor expansion of -0.5 in y
0.145 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.145 * [taylor]: Taking taylor expansion of 0.5 in y
0.145 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.145 * [taylor]: Taking taylor expansion of y in y
0.146 * [taylor]: Taking taylor expansion of 0 in y
0.146 * [taylor]: Taking taylor expansion of 0 in y
0.146 * [taylor]: Taking taylor expansion of 0 in y
0.147 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in (x y) around 0
0.147 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in y
0.147 * [taylor]: Taking taylor expansion of 0.5 in y
0.147 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in y
0.147 * [taylor]: Taking taylor expansion of x in y
0.147 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
0.147 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.147 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.147 * [taylor]: Taking taylor expansion of x in y
0.147 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.147 * [taylor]: Taking taylor expansion of y in y
0.147 * [taylor]: Taking taylor expansion of y in y
0.147 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
0.147 * [taylor]: Taking taylor expansion of 0.5 in x
0.147 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.147 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
0.147 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.147 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.147 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.147 * [taylor]: Taking taylor expansion of y in x
0.147 * [taylor]: Taking taylor expansion of y in x
0.147 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
0.147 * [taylor]: Taking taylor expansion of 0.5 in x
0.147 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.147 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
0.147 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.147 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.147 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.147 * [taylor]: Taking taylor expansion of y in x
0.147 * [taylor]: Taking taylor expansion of y in x
0.147 * [taylor]: Taking taylor expansion of 0 in y
0.148 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.148 * [taylor]: Taking taylor expansion of 0.5 in y
0.148 * [taylor]: Taking taylor expansion of y in y
0.148 * [taylor]: Taking taylor expansion of (neg 0.5) in y
0.148 * [taylor]: Taking taylor expansion of 0.5 in y
0.148 * [taylor]: Taking taylor expansion of 0 in y
0.149 * [taylor]: Taking taylor expansion of 0 in y
0.149 * [taylor]: Taking taylor expansion of 0 in y
0.149 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in (x y) around 0
0.149 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in y
0.149 * [taylor]: Taking taylor expansion of 0.5 in y
0.149 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in y
0.149 * [taylor]: Taking taylor expansion of x in y
0.150 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
0.150 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.150 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.150 * [taylor]: Taking taylor expansion of y in y
0.150 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.150 * [taylor]: Taking taylor expansion of x in y
0.150 * [taylor]: Taking taylor expansion of y in y
0.150 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
0.150 * [taylor]: Taking taylor expansion of 0.5 in x
0.150 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
0.150 * [taylor]: Taking taylor expansion of x in x
0.150 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
0.150 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.150 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.150 * [taylor]: Taking taylor expansion of y in x
0.150 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.150 * [taylor]: Taking taylor expansion of x in x
0.150 * [taylor]: Taking taylor expansion of y in x
0.150 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
0.150 * [taylor]: Taking taylor expansion of 0.5 in x
0.150 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
0.150 * [taylor]: Taking taylor expansion of x in x
0.150 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
0.150 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.150 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.150 * [taylor]: Taking taylor expansion of y in x
0.150 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.150 * [taylor]: Taking taylor expansion of x in x
0.150 * [taylor]: Taking taylor expansion of y in x
0.150 * [taylor]: Taking taylor expansion of 0 in y
0.150 * [taylor]: Taking taylor expansion of (neg (* 0.5 y)) in y
0.150 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.150 * [taylor]: Taking taylor expansion of 0.5 in y
0.150 * [taylor]: Taking taylor expansion of y in y
0.151 * [taylor]: Taking taylor expansion of 0.5 in y
0.151 * [taylor]: Taking taylor expansion of 0 in y
0.151 * [taylor]: Taking taylor expansion of 0 in y
0.152 * [taylor]: Taking taylor expansion of 0 in y
0.152 * * * [progress]: simplifying candidates
0.153 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (log (- x y)) (+ (+ (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) (* (* x 2.0) y)))
  (exp (/ (- x y) (* (* x 2.0) y)))
  (/ (* (* (- x y) (- x 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)))
  (* (cbrt (/ (- x y) (* (* x 2.0) y))) (cbrt (/ (- x y) (* (* x 2.0) y))))
  (cbrt (/ (- x y) (* (* x 2.0) y)))
  (* (* (/ (- x y) (* (* x 2.0) y)) (/ (- x y) (* (* x 2.0) y))) (/ (- x y) (* (* x 2.0) y)))
  (sqrt (/ (- x y) (* (* x 2.0) y)))
  (sqrt (/ (- x y) (* (* x 2.0) y)))
  (neg (- x y))
  (neg (* (* x 2.0) y))
  (/ x (* (* x 2.0) y))
  (/ y (* (* x 2.0) y))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* x 2.0))
  (/ (cbrt (- x y)) y)
  (/ (sqrt (- x y)) (* x 2.0))
  (/ (sqrt (- x y)) y)
  (/ 1 (* x 2.0))
  (/ (- x y) y)
  (/ (+ (sqrt x) (sqrt y)) (* x 2.0))
  (/ (- (sqrt x) (sqrt y)) y)
  (/ 1 (* x 2.0))
  (/ (- x y) y)
  (/ 1 (* (* x 2.0) y))
  (/ (* (* x 2.0) y) (- x y))
  (/ (- x y) (* x 2.0))
  (/ (* (* x 2.0) y) (cbrt (- x y)))
  (/ (* (* x 2.0) y) (sqrt (- x y)))
  (/ (* (* x 2.0) y) (- x y))
  (/ (* (* x 2.0) y) (- (sqrt x) (sqrt y)))
  (/ (* (* x 2.0) y) (- x y))
  (* (* (* x 2.0) y) (+ (* x x) (+ (* y y) (* x y))))
  (* (* (* x 2.0) y) (+ x y))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
0.155 * * [simplify]: iteration  0 :  82  enodes  (cost  447 )
0.166 * * [simplify]: iteration  1 :  236  enodes  (cost  433 )
0.232 * * [simplify]: iteration  2 :  903  enodes  (cost  353 )
1.674 * * [simplify]: iteration  3 :  4558  enodes  (cost  351 )
2.898 * * [simplify]: iteration  done :  5000  enodes  (cost  351 )
2.898 * [simplify]: Simplified to:
   (log (/ (- x y) (* (* x 2.0) y)))
  (log (/ (- x y) (* (* x 2.0) y)))
  (log (/ (- x y) (* (* x 2.0) y)))
  (log (/ (- x y) (* (* x 2.0) y)))
  (exp (/ (- x y) (* (* x 2.0) y)))
  (pow (/ (- x y) (* (* x 2.0) y)) 3)
  (pow (/ (- x y) (* (* x 2.0) y)) 3)
  (pow (/ (- x y) (* (* x 2.0) y)) 3)
  (* (cbrt (/ (- x y) (* (* x 2.0) y))) (cbrt (/ (- x y) (* (* x 2.0) y))))
  (cbrt (/ (- x y) (* (* x 2.0) y)))
  (pow (/ (- x y) (* (* x 2.0) y)) 3)
  (sqrt (/ (- x y) (* (* x 2.0) y)))
  (sqrt (/ (- x y) (* (* x 2.0) y)))
  (neg (- x y))
  (neg (* (* x 2.0) y))
  (/ (/ 1 2.0) y)
  (/ (/ 1 x) 2.0)
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* x 2.0))
  (/ (cbrt (- x y)) y)
  (/ (sqrt (- x y)) (* x 2.0))
  (/ (sqrt (- x y)) y)
  (/ (/ 1 x) 2.0)
  (/ (- x y) y)
  (/ (+ (sqrt x) (sqrt y)) (* x 2.0))
  (/ (- (sqrt x) (sqrt y)) y)
  (/ (/ 1 x) 2.0)
  (/ (- x y) y)
  (/ 1 (* (* x 2.0) y))
  (/ (* (* x 2.0) y) (- x y))
  (/ (- x y) (* x 2.0))
  (/ (* (* x 2.0) y) (cbrt (- x y)))
  (/ (* (* x 2.0) y) (sqrt (- x y)))
  (/ (* (* x 2.0) y) (- x y))
  (/ (* (* x 2.0) y) (- (sqrt x) (sqrt y)))
  (/ (* (* x 2.0) y) (- x y))
  (* (+ (* y (+ x y)) (* x x)) (* (* x 2.0) y))
  (* (* (* x 2.0) y) (+ x y))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
2.898 * * * [progress]: adding candidates to table
2.937 * * [progress]: iteration 2 / 4
2.937 * * * [progress]: picking best candidate
2.942 * * * * [pick]: Picked  #<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))>
2.942 * * * [progress]: localizing error
2.946 * * * [progress]: generating rewritten candidates
2.946 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
2.960 * * * [progress]: generating series expansions
2.960 * * * * [progress]: [ 1 / 1 ] generating series at (2)
2.960 * [approximate]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in (y x) around 0
2.960 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
2.960 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
2.960 * [taylor]: Taking taylor expansion of 0.5 in x
2.960 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.960 * [taylor]: Taking taylor expansion of y in x
2.960 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
2.961 * [taylor]: Taking taylor expansion of 0.5 in x
2.961 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.961 * [taylor]: Taking taylor expansion of x in x
2.961 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
2.961 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
2.961 * [taylor]: Taking taylor expansion of 0.5 in y
2.961 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.961 * [taylor]: Taking taylor expansion of y in y
2.961 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
2.961 * [taylor]: Taking taylor expansion of 0.5 in y
2.961 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.961 * [taylor]: Taking taylor expansion of x in y
2.961 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
2.961 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
2.961 * [taylor]: Taking taylor expansion of 0.5 in y
2.961 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.961 * [taylor]: Taking taylor expansion of y in y
2.961 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
2.961 * [taylor]: Taking taylor expansion of 0.5 in y
2.961 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.961 * [taylor]: Taking taylor expansion of x in y
2.961 * [taylor]: Taking taylor expansion of 0.5 in x
2.961 * [taylor]: Taking taylor expansion of (neg (* 0.5 (/ 1 x))) in x
2.961 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
2.961 * [taylor]: Taking taylor expansion of 0.5 in x
2.961 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.961 * [taylor]: Taking taylor expansion of x in x
2.962 * [taylor]: Taking taylor expansion of 0 in x
2.962 * [taylor]: Taking taylor expansion of 0 in x
2.962 * [taylor]: Taking taylor expansion of 0 in x
2.962 * [approximate]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in (y x) around 0
2.962 * [taylor]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in x
2.962 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
2.963 * [taylor]: Taking taylor expansion of 0.5 in x
2.963 * [taylor]: Taking taylor expansion of y in x
2.963 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
2.963 * [taylor]: Taking taylor expansion of 0.5 in x
2.963 * [taylor]: Taking taylor expansion of x in x
2.963 * [taylor]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in y
2.963 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
2.963 * [taylor]: Taking taylor expansion of 0.5 in y
2.963 * [taylor]: Taking taylor expansion of y in y
2.963 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
2.963 * [taylor]: Taking taylor expansion of 0.5 in y
2.963 * [taylor]: Taking taylor expansion of x in y
2.963 * [taylor]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in y
2.963 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
2.963 * [taylor]: Taking taylor expansion of 0.5 in y
2.963 * [taylor]: Taking taylor expansion of y in y
2.963 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
2.963 * [taylor]: Taking taylor expansion of 0.5 in y
2.963 * [taylor]: Taking taylor expansion of x in y
2.963 * [taylor]: Taking taylor expansion of (neg (* 0.5 x)) in x
2.963 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
2.963 * [taylor]: Taking taylor expansion of 0.5 in x
2.963 * [taylor]: Taking taylor expansion of x in x
2.963 * [taylor]: Taking taylor expansion of 0.5 in x
2.963 * [taylor]: Taking taylor expansion of 0 in x
2.963 * [taylor]: Taking taylor expansion of 0 in x
2.964 * [approximate]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in (y x) around 0
2.964 * [taylor]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in x
2.964 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
2.964 * [taylor]: Taking taylor expansion of 0.5 in x
2.964 * [taylor]: Taking taylor expansion of x in x
2.964 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
2.964 * [taylor]: Taking taylor expansion of 0.5 in x
2.964 * [taylor]: Taking taylor expansion of y in x
2.964 * [taylor]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in y
2.964 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
2.964 * [taylor]: Taking taylor expansion of 0.5 in y
2.964 * [taylor]: Taking taylor expansion of x in y
2.964 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
2.964 * [taylor]: Taking taylor expansion of 0.5 in y
2.964 * [taylor]: Taking taylor expansion of y in y
2.964 * [taylor]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in y
2.964 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
2.964 * [taylor]: Taking taylor expansion of 0.5 in y
2.964 * [taylor]: Taking taylor expansion of x in y
2.964 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
2.964 * [taylor]: Taking taylor expansion of 0.5 in y
2.964 * [taylor]: Taking taylor expansion of y in y
2.964 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
2.964 * [taylor]: Taking taylor expansion of 0.5 in x
2.964 * [taylor]: Taking taylor expansion of x in x
2.964 * [taylor]: Taking taylor expansion of (neg 0.5) in x
2.964 * [taylor]: Taking taylor expansion of 0.5 in x
2.964 * [taylor]: Taking taylor expansion of 0 in x
2.965 * [taylor]: Taking taylor expansion of 0 in x
2.965 * * * [progress]: simplifying candidates
2.965 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (exp (/ 0.5 y)) (exp (/ 0.5 x)))
  (log (- (/ 0.5 y) (/ 0.5 x)))
  (exp (- (/ 0.5 y) (/ 0.5 x)))
  (* (cbrt (- (/ 0.5 y) (/ 0.5 x))) (cbrt (- (/ 0.5 y) (/ 0.5 x))))
  (cbrt (- (/ 0.5 y) (/ 0.5 x)))
  (* (* (- (/ 0.5 y) (/ 0.5 x)) (- (/ 0.5 y) (/ 0.5 x))) (- (/ 0.5 y) (/ 0.5 x)))
  (sqrt (- (/ 0.5 y) (/ 0.5 x)))
  (sqrt (- (/ 0.5 y) (/ 0.5 x)))
  (- (* 0.5 x) (* y 0.5))
  (* y x)
  (- (pow (/ 0.5 y) 3) (pow (/ 0.5 x) 3))
  (+ (* (/ 0.5 y) (/ 0.5 y)) (+ (* (/ 0.5 x) (/ 0.5 x)) (* (/ 0.5 y) (/ 0.5 x))))
  (neg (/ 0.5 x))
  (- (* (/ 0.5 y) (/ 0.5 y)) (* (/ 0.5 x) (/ 0.5 x)))
  (+ (/ 0.5 y) (/ 0.5 x))
  (+ (sqrt (/ 0.5 y)) (sqrt (/ 0.5 x)))
  (- (sqrt (/ 0.5 y)) (sqrt (/ 0.5 x)))
  (+ (sqrt (/ 0.5 y)) (/ (sqrt 0.5) (sqrt x)))
  (- (sqrt (/ 0.5 y)) (/ (sqrt 0.5) (sqrt x)))
  (+ (/ (sqrt 0.5) (sqrt y)) (sqrt (/ 0.5 x)))
  (- (/ (sqrt 0.5) (sqrt y)) (sqrt (/ 0.5 x)))
  (+ (/ (sqrt 0.5) (sqrt y)) (/ (sqrt 0.5) (sqrt x)))
  (- (/ (sqrt 0.5) (sqrt y)) (/ (sqrt 0.5) (sqrt x)))
  (- (/ (cbrt 0.5) y) (/ (cbrt 0.5) x))
  (- (/ (sqrt 0.5) y) (/ (sqrt 0.5) x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 1 y) (/ 1 x))
  (neg (/ 0.5 x))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
2.967 * * [simplify]: iteration  0 :  61  enodes  (cost  315 )
2.975 * * [simplify]: iteration  1 :  134  enodes  (cost  304 )
3.004 * * [simplify]: iteration  2 :  275  enodes  (cost  282 )
3.084 * * [simplify]: iteration  3 :  805  enodes  (cost  282 )
3.590 * * [simplify]: iteration  4 :  2775  enodes  (cost  278 )
4.891 * * [simplify]: iteration  done :  5000  enodes  (cost  278 )
4.892 * [simplify]: Simplified to:
   (exp (- (/ 0.5 y) (/ 0.5 x)))
  (log (- (/ 0.5 y) (/ 0.5 x)))
  (exp (- (/ 0.5 y) (/ 0.5 x)))
  (* (cbrt (- (/ 0.5 y) (/ 0.5 x))) (cbrt (- (/ 0.5 y) (/ 0.5 x))))
  (cbrt (- (/ 0.5 y) (/ 0.5 x)))
  (pow (- (/ 0.5 y) (/ 0.5 x)) 3)
  (sqrt (- (/ 0.5 y) (/ 0.5 x)))
  (sqrt (- (/ 0.5 y) (/ 0.5 x)))
  (* 0.5 (- x y))
  (* y x)
  (- (pow (/ 0.5 y) 3) (pow (/ 0.5 x) 3))
  (* 0.5 (+ (/ 0.5 (* x x)) (/ (+ (/ 0.5 y) (/ 0.5 x)) y)))
  (/ (neg 0.5) x)
  (* 0.5 (- (/ (/ 0.5 y) y) (/ 0.5 (* x x))))
  (+ (/ 0.5 y) (/ 0.5 x))
  (+ (sqrt (/ 0.5 y)) (sqrt (/ 0.5 x)))
  (- (sqrt (/ 0.5 y)) (sqrt (/ 0.5 x)))
  (+ (sqrt (/ 0.5 y)) (/ (sqrt 0.5) (sqrt x)))
  (- (sqrt (/ 0.5 y)) (/ (sqrt 0.5) (sqrt x)))
  (+ (/ (sqrt 0.5) (sqrt y)) (sqrt (/ 0.5 x)))
  (- (/ (sqrt 0.5) (sqrt y)) (sqrt (/ 0.5 x)))
  (+ (/ (sqrt 0.5) (sqrt y)) (/ (sqrt 0.5) (sqrt x)))
  (- (/ (sqrt 0.5) (sqrt y)) (/ (sqrt 0.5) (sqrt x)))
  (- (/ (cbrt 0.5) y) (/ (cbrt 0.5) x))
  (- (/ (sqrt 0.5) y) (/ (sqrt 0.5) x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 1 y) (/ 1 x))
  (/ (neg 0.5) x)
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
4.892 * * * [progress]: adding candidates to table
4.922 * * [progress]: iteration 3 / 4
4.922 * * * [progress]: picking best candidate
4.925 * * * * [pick]: Picked  #<alt (λ (x y) (* (/ (/ 1 x) 2.0) (/ (- x y) y)))>
4.925 * * * [progress]: localizing error
4.932 * * * [progress]: generating rewritten candidates
4.932 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
4.960 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
4.974 * * * [progress]: generating series expansions
4.974 * * * * [progress]: [ 1 / 2 ] generating series at (2)
4.974 * [approximate]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in (x y) around 0
4.974 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in y
4.974 * [taylor]: Taking taylor expansion of 0.5 in y
4.974 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in y
4.974 * [taylor]: Taking taylor expansion of (- x y) in y
4.974 * [taylor]: Taking taylor expansion of x in y
4.974 * [taylor]: Taking taylor expansion of y in y
4.974 * [taylor]: Taking taylor expansion of (* x y) in y
4.975 * [taylor]: Taking taylor expansion of x in y
4.975 * [taylor]: Taking taylor expansion of y in y
4.975 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
4.975 * [taylor]: Taking taylor expansion of 0.5 in x
4.975 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
4.975 * [taylor]: Taking taylor expansion of (- x y) in x
4.975 * [taylor]: Taking taylor expansion of x in x
4.975 * [taylor]: Taking taylor expansion of y in x
4.975 * [taylor]: Taking taylor expansion of (* x y) in x
4.975 * [taylor]: Taking taylor expansion of x in x
4.975 * [taylor]: Taking taylor expansion of y in x
4.975 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
4.975 * [taylor]: Taking taylor expansion of 0.5 in x
4.975 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
4.975 * [taylor]: Taking taylor expansion of (- x y) in x
4.975 * [taylor]: Taking taylor expansion of x in x
4.975 * [taylor]: Taking taylor expansion of y in x
4.975 * [taylor]: Taking taylor expansion of (* x y) in x
4.975 * [taylor]: Taking taylor expansion of x in x
4.975 * [taylor]: Taking taylor expansion of y in x
4.975 * [taylor]: Taking taylor expansion of -0.5 in y
4.975 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.975 * [taylor]: Taking taylor expansion of 0.5 in y
4.975 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.975 * [taylor]: Taking taylor expansion of y in y
4.976 * [taylor]: Taking taylor expansion of 0 in y
4.976 * [taylor]: Taking taylor expansion of 0 in y
4.976 * [taylor]: Taking taylor expansion of 0 in y
4.977 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in (x y) around 0
4.977 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in y
4.977 * [taylor]: Taking taylor expansion of 0.5 in y
4.977 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in y
4.977 * [taylor]: Taking taylor expansion of x in y
4.977 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
4.977 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
4.977 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.977 * [taylor]: Taking taylor expansion of x in y
4.977 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.977 * [taylor]: Taking taylor expansion of y in y
4.977 * [taylor]: Taking taylor expansion of y in y
4.977 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
4.977 * [taylor]: Taking taylor expansion of 0.5 in x
4.977 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
4.977 * [taylor]: Taking taylor expansion of x in x
4.977 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
4.977 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.977 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.977 * [taylor]: Taking taylor expansion of x in x
4.977 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.977 * [taylor]: Taking taylor expansion of y in x
4.977 * [taylor]: Taking taylor expansion of y in x
4.977 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
4.977 * [taylor]: Taking taylor expansion of 0.5 in x
4.977 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
4.977 * [taylor]: Taking taylor expansion of x in x
4.977 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
4.977 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.977 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.977 * [taylor]: Taking taylor expansion of x in x
4.977 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.977 * [taylor]: Taking taylor expansion of y in x
4.977 * [taylor]: Taking taylor expansion of y in x
4.977 * [taylor]: Taking taylor expansion of 0 in y
4.978 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
4.978 * [taylor]: Taking taylor expansion of 0.5 in y
4.978 * [taylor]: Taking taylor expansion of y in y
4.978 * [taylor]: Taking taylor expansion of (neg 0.5) in y
4.978 * [taylor]: Taking taylor expansion of 0.5 in y
4.979 * [taylor]: Taking taylor expansion of 0 in y
4.979 * [taylor]: Taking taylor expansion of 0 in y
4.980 * [taylor]: Taking taylor expansion of 0 in y
4.980 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in (x y) around 0
4.980 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in y
4.980 * [taylor]: Taking taylor expansion of 0.5 in y
4.980 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in y
4.980 * [taylor]: Taking taylor expansion of x in y
4.980 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
4.980 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
4.980 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.980 * [taylor]: Taking taylor expansion of y in y
4.980 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.980 * [taylor]: Taking taylor expansion of x in y
4.980 * [taylor]: Taking taylor expansion of y in y
4.980 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
4.980 * [taylor]: Taking taylor expansion of 0.5 in x
4.980 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
4.980 * [taylor]: Taking taylor expansion of x in x
4.980 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
4.980 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.980 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.980 * [taylor]: Taking taylor expansion of y in x
4.980 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.980 * [taylor]: Taking taylor expansion of x in x
4.980 * [taylor]: Taking taylor expansion of y in x
4.980 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
4.980 * [taylor]: Taking taylor expansion of 0.5 in x
4.980 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
4.980 * [taylor]: Taking taylor expansion of x in x
4.980 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
4.980 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.980 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.980 * [taylor]: Taking taylor expansion of y in x
4.980 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.980 * [taylor]: Taking taylor expansion of x in x
4.981 * [taylor]: Taking taylor expansion of y in x
4.981 * [taylor]: Taking taylor expansion of 0 in y
4.981 * [taylor]: Taking taylor expansion of (neg (* 0.5 y)) in y
4.981 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
4.981 * [taylor]: Taking taylor expansion of 0.5 in y
4.981 * [taylor]: Taking taylor expansion of y in y
4.981 * [taylor]: Taking taylor expansion of 0.5 in y
4.981 * [taylor]: Taking taylor expansion of 0 in y
4.982 * [taylor]: Taking taylor expansion of 0 in y
4.982 * [taylor]: Taking taylor expansion of 0 in y
4.983 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
4.983 * [approximate]: Taking taylor expansion of (/ (- x y) y) in (x y) around 0
4.983 * [taylor]: Taking taylor expansion of (/ (- x y) y) in y
4.983 * [taylor]: Taking taylor expansion of (- x y) in y
4.983 * [taylor]: Taking taylor expansion of x in y
4.983 * [taylor]: Taking taylor expansion of y in y
4.983 * [taylor]: Taking taylor expansion of y in y
4.983 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
4.983 * [taylor]: Taking taylor expansion of (- x y) in x
4.983 * [taylor]: Taking taylor expansion of x in x
4.983 * [taylor]: Taking taylor expansion of y in x
4.983 * [taylor]: Taking taylor expansion of y in x
4.983 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
4.983 * [taylor]: Taking taylor expansion of (- x y) in x
4.983 * [taylor]: Taking taylor expansion of x in x
4.983 * [taylor]: Taking taylor expansion of y in x
4.983 * [taylor]: Taking taylor expansion of y in x
4.983 * [taylor]: Taking taylor expansion of -1 in y
4.983 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.983 * [taylor]: Taking taylor expansion of y in y
4.983 * [taylor]: Taking taylor expansion of 0 in y
4.984 * [taylor]: Taking taylor expansion of 0 in y
4.984 * [taylor]: Taking taylor expansion of 0 in y
4.984 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in (x y) around 0
4.984 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
4.984 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
4.984 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.984 * [taylor]: Taking taylor expansion of x in y
4.984 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.984 * [taylor]: Taking taylor expansion of y in y
4.984 * [taylor]: Taking taylor expansion of y in y
4.984 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
4.984 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.984 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.984 * [taylor]: Taking taylor expansion of x in x
4.984 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.984 * [taylor]: Taking taylor expansion of y in x
4.984 * [taylor]: Taking taylor expansion of y in x
4.984 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
4.984 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.984 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.984 * [taylor]: Taking taylor expansion of x in x
4.984 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.984 * [taylor]: Taking taylor expansion of y in x
4.984 * [taylor]: Taking taylor expansion of y in x
4.984 * [taylor]: Taking taylor expansion of y in y
4.985 * [taylor]: Taking taylor expansion of (neg 1) in y
4.985 * [taylor]: Taking taylor expansion of 1 in y
4.985 * [taylor]: Taking taylor expansion of 0 in y
4.985 * [taylor]: Taking taylor expansion of 0 in y
4.985 * [taylor]: Taking taylor expansion of 0 in y
4.986 * [approximate]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in (x y) around 0
4.986 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in y
4.986 * [taylor]: Taking taylor expansion of -1 in y
4.986 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
4.986 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
4.986 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.986 * [taylor]: Taking taylor expansion of y in y
4.986 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.986 * [taylor]: Taking taylor expansion of x in y
4.986 * [taylor]: Taking taylor expansion of y in y
4.986 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in x
4.986 * [taylor]: Taking taylor expansion of -1 in x
4.986 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
4.986 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.986 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.986 * [taylor]: Taking taylor expansion of y in x
4.986 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.986 * [taylor]: Taking taylor expansion of x in x
4.986 * [taylor]: Taking taylor expansion of y in x
4.986 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in x
4.986 * [taylor]: Taking taylor expansion of -1 in x
4.986 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
4.986 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.986 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.986 * [taylor]: Taking taylor expansion of y in x
4.986 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.986 * [taylor]: Taking taylor expansion of x in x
4.986 * [taylor]: Taking taylor expansion of y in x
4.986 * [taylor]: Taking taylor expansion of y in y
4.986 * [taylor]: Taking taylor expansion of (neg 1) in y
4.986 * [taylor]: Taking taylor expansion of 1 in y
4.987 * [taylor]: Taking taylor expansion of 0 in y
4.987 * [taylor]: Taking taylor expansion of 0 in y
4.987 * [taylor]: Taking taylor expansion of 0 in y
4.987 * * * [progress]: simplifying candidates
4.989 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (/ (/ 1 x) 2.0) (/ (- x y) y))
  (+ (- (neg (log x)) (log 2.0)) (- (log (- x y)) (log y)))
  (+ (- (neg (log x)) (log 2.0)) (log (/ (- x y) y)))
  (+ (- (- 0 (log x)) (log 2.0)) (- (log (- x y)) (log y)))
  (+ (- (- 0 (log x)) (log 2.0)) (log (/ (- x y) y)))
  (+ (- (- (log 1) (log x)) (log 2.0)) (- (log (- x y)) (log y)))
  (+ (- (- (log 1) (log x)) (log 2.0)) (log (/ (- x y) y)))
  (+ (- (log (/ 1 x)) (log 2.0)) (- (log (- x y)) (log y)))
  (+ (- (log (/ 1 x)) (log 2.0)) (log (/ (- x y) y)))
  (+ (log (/ (/ 1 x) 2.0)) (- (log (- x y)) (log y)))
  (+ (log (/ (/ 1 x) 2.0)) (log (/ (- x y) y)))
  (log (* (/ (/ 1 x) 2.0) (/ (- x y) y)))
  (exp (* (/ (/ 1 x) 2.0) (/ (- x y) y)))
  (* (/ (/ (* (* 1 1) 1) (* (* x x) x)) (* (* 2.0 2.0) 2.0)) (/ (* (* (- x y) (- x y)) (- x y)) (* (* y y) y)))
  (* (/ (/ (* (* 1 1) 1) (* (* x x) x)) (* (* 2.0 2.0) 2.0)) (* (* (/ (- x y) y) (/ (- x y) y)) (/ (- x y) y)))
  (* (/ (* (* (/ 1 x) (/ 1 x)) (/ 1 x)) (* (* 2.0 2.0) 2.0)) (/ (* (* (- x y) (- x y)) (- x y)) (* (* y y) y)))
  (* (/ (* (* (/ 1 x) (/ 1 x)) (/ 1 x)) (* (* 2.0 2.0) 2.0)) (* (* (/ (- x y) y) (/ (- x y) y)) (/ (- x y) y)))
  (* (* (* (/ (/ 1 x) 2.0) (/ (/ 1 x) 2.0)) (/ (/ 1 x) 2.0)) (/ (* (* (- x y) (- x y)) (- x y)) (* (* y y) y)))
  (* (* (* (/ (/ 1 x) 2.0) (/ (/ 1 x) 2.0)) (/ (/ 1 x) 2.0)) (* (* (/ (- x y) y) (/ (- x y) y)) (/ (- x y) y)))
  (* (cbrt (* (/ (/ 1 x) 2.0) (/ (- x y) y))) (cbrt (* (/ (/ 1 x) 2.0) (/ (- x y) y))))
  (cbrt (* (/ (/ 1 x) 2.0) (/ (- x y) y)))
  (* (* (* (/ (/ 1 x) 2.0) (/ (- x y) y)) (* (/ (/ 1 x) 2.0) (/ (- x y) y))) (* (/ (/ 1 x) 2.0) (/ (- x y) y)))
  (sqrt (* (/ (/ 1 x) 2.0) (/ (- x y) y)))
  (sqrt (* (/ (/ 1 x) 2.0) (/ (- x y) y)))
  (* (/ 1 x) (- x y))
  (* 2.0 y)
  (* (sqrt (/ (/ 1 x) 2.0)) (sqrt (/ (- x y) y)))
  (* (sqrt (/ (/ 1 x) 2.0)) (sqrt (/ (- x y) y)))
  (* (sqrt (/ (/ 1 x) 2.0)) (/ (sqrt (- x y)) (sqrt y)))
  (* (sqrt (/ (/ 1 x) 2.0)) (/ (sqrt (- x y)) (sqrt y)))
  (* (/ (sqrt (/ 1 x)) (sqrt 2.0)) (sqrt (/ (- x y) y)))
  (* (/ (sqrt (/ 1 x)) (sqrt 2.0)) (sqrt (/ (- x y) y)))
  (* (/ (sqrt (/ 1 x)) (sqrt 2.0)) (/ (sqrt (- x y)) (sqrt y)))
  (* (/ (sqrt (/ 1 x)) (sqrt 2.0)) (/ (sqrt (- x y)) (sqrt y)))
  (* (/ (/ (sqrt 1) (sqrt x)) (sqrt 2.0)) (sqrt (/ (- x y) y)))
  (* (/ (/ (sqrt 1) (sqrt x)) (sqrt 2.0)) (sqrt (/ (- x y) y)))
  (* (/ (/ (sqrt 1) (sqrt x)) (sqrt 2.0)) (/ (sqrt (- x y)) (sqrt y)))
  (* (/ (/ (sqrt 1) (sqrt x)) (sqrt 2.0)) (/ (sqrt (- x y)) (sqrt y)))
  (* (/ (/ 1 (sqrt x)) (sqrt 2.0)) (sqrt (/ (- x y) y)))
  (* (/ (/ 1 (sqrt x)) (sqrt 2.0)) (sqrt (/ (- x y) y)))
  (* (/ (/ 1 (sqrt x)) (sqrt 2.0)) (/ (sqrt (- x y)) (sqrt y)))
  (* (/ (/ 1 (sqrt x)) (sqrt 2.0)) (/ (sqrt (- x y)) (sqrt y)))
  (* (/ (/ 1 x) 2.0) (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))))
  (* (/ (/ 1 x) 2.0) (sqrt (/ (- x y) y)))
  (* (/ (/ 1 x) 2.0) (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))))
  (* (/ (/ 1 x) 2.0) (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)))
  (* (/ (/ 1 x) 2.0) (/ (* (cbrt (- x y)) (cbrt (- x y))) 1))
  (* (/ (/ 1 x) 2.0) (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))))
  (* (/ (/ 1 x) 2.0) (/ (sqrt (- x y)) (sqrt y)))
  (* (/ (/ 1 x) 2.0) (/ (sqrt (- x y)) 1))
  (* (/ (/ 1 x) 2.0) (/ 1 (* (cbrt y) (cbrt y))))
  (* (/ (/ 1 x) 2.0) (/ 1 (sqrt y)))
  (* (/ (/ 1 x) 2.0) (/ 1 1))
  (* (/ (/ 1 x) 2.0) (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))))
  (* (/ (/ 1 x) 2.0) (/ (+ (sqrt x) (sqrt y)) (sqrt y)))
  (* (/ (/ 1 x) 2.0) (/ (+ (sqrt x) (sqrt y)) 1))
  (* (/ (/ 1 x) 2.0) (/ 1 (* (cbrt y) (cbrt y))))
  (* (/ (/ 1 x) 2.0) (/ 1 (sqrt y)))
  (* (/ (/ 1 x) 2.0) (/ 1 1))
  (* (/ (/ 1 x) 2.0) 1)
  (* (/ (/ 1 x) 2.0) (- x y))
  (* (cbrt (/ (/ 1 x) 2.0)) (/ (- x y) y))
  (* (sqrt (/ (/ 1 x) 2.0)) (/ (- x y) y))
  (* (/ (cbrt (/ 1 x)) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (cbrt (/ 1 x)) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (cbrt (/ 1 x)) 2.0) (/ (- x y) y))
  (* (/ (sqrt (/ 1 x)) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (sqrt (/ 1 x)) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (sqrt (/ 1 x)) 2.0) (/ (- x y) y))
  (* (/ (/ (cbrt 1) (cbrt x)) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (/ (cbrt 1) (cbrt x)) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (/ (cbrt 1) (cbrt x)) 2.0) (/ (- x y) y))
  (* (/ (/ (cbrt 1) (sqrt x)) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (/ (cbrt 1) (sqrt x)) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (/ (cbrt 1) (sqrt x)) 2.0) (/ (- x y) y))
  (* (/ (/ (cbrt 1) x) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (/ (cbrt 1) x) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (/ (cbrt 1) x) 2.0) (/ (- x y) y))
  (* (/ (/ (sqrt 1) (cbrt x)) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (/ (sqrt 1) (cbrt x)) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (/ (sqrt 1) (cbrt x)) 2.0) (/ (- x y) y))
  (* (/ (/ (sqrt 1) (sqrt x)) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (/ (sqrt 1) (sqrt x)) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (/ (sqrt 1) (sqrt x)) 2.0) (/ (- x y) y))
  (* (/ (/ (sqrt 1) x) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (/ (sqrt 1) x) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (/ (sqrt 1) x) 2.0) (/ (- x y) y))
  (* (/ (/ 1 (cbrt x)) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (/ 1 (cbrt x)) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (/ 1 (cbrt x)) 2.0) (/ (- x y) y))
  (* (/ (/ 1 (sqrt x)) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (/ 1 (sqrt x)) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (/ 1 (sqrt x)) 2.0) (/ (- x y) y))
  (* (/ (/ 1 x) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (/ 1 x) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (/ 1 x) 2.0) (/ (- x y) y))
  (* (/ (/ 1 x) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (/ 1 x) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (/ 1 x) 2.0) (/ (- x y) y))
  (* (/ (/ 1 x) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (/ 1 x) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (/ 1 x) 2.0) (/ (- x y) y))
  (* (/ (/ 1 x) 2.0) (/ (- x y) y))
  (* (/ 1 2.0) (/ (- x y) y))
  (* (/ (/ 1 x) 2.0) (- x y))
  (* (/ 1 x) (/ (- x y) 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))
  (neg (- x y))
  (neg 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))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (- (/ x y) 1)
  (- (/ x y) 1)
  (- (/ x y) 1)
4.995 * * [simplify]: iteration  0 :  238  enodes  (cost  1968 )
5.079 * * [simplify]: iteration  1 :  720  enodes  (cost  1868 )
5.521 * * [simplify]: iteration  2 :  2182  enodes  (cost  1567 )
6.013 * * [simplify]: iteration  done :  5000  enodes  (cost  1567 )
6.014 * [simplify]: Simplified to:
   (/ (/ (/ (- x y) y) x) 2.0)
  (log (/ (/ (/ (- x y) y) x) 2.0))
  (log (/ (/ (/ (- x y) y) x) 2.0))
  (log (/ (/ (/ (- x y) y) x) 2.0))
  (log (/ (/ (/ (- x y) y) x) 2.0))
  (log (/ (/ (/ (- x y) y) x) 2.0))
  (log (/ (/ (/ (- x y) y) x) 2.0))
  (log (/ (/ (/ (- x y) y) x) 2.0))
  (log (/ (/ (/ (- x y) y) x) 2.0))
  (log (/ (/ (/ (- x y) y) x) 2.0))
  (log (/ (/ (/ (- x y) y) x) 2.0))
  (log (/ (/ (/ (- x y) y) x) 2.0))
  (exp (/ (/ (/ (- x y) y) x) 2.0))
  (pow (/ (/ (/ (- x y) y) x) 2.0) 3)
  (pow (/ (/ (/ (- x y) y) x) 2.0) 3)
  (pow (/ (/ (/ (- x y) y) x) 2.0) 3)
  (pow (/ (/ (/ (- x y) y) x) 2.0) 3)
  (pow (/ (/ (/ (- x y) y) x) 2.0) 3)
  (pow (/ (/ (/ (- x y) y) x) 2.0) 3)
  (* (cbrt (/ (/ (/ (- x y) y) x) 2.0)) (cbrt (/ (/ (/ (- x y) y) x) 2.0)))
  (cbrt (/ (/ (/ (- x y) y) x) 2.0))
  (pow (/ (/ (/ (- x y) y) x) 2.0) 3)
  (sqrt (/ (/ (/ (- x y) y) x) 2.0))
  (sqrt (/ (/ (/ (- x y) y) x) 2.0))
  (/ (- x y) x)
  (* 2.0 y)
  (* (sqrt (/ (/ 1 x) 2.0)) (sqrt (/ (- x y) y)))
  (* (sqrt (/ (/ 1 x) 2.0)) (sqrt (/ (- x y) y)))
  (* (sqrt (/ (/ 1 x) 2.0)) (/ (sqrt (- x y)) (sqrt y)))
  (* (sqrt (/ (/ 1 x) 2.0)) (/ (sqrt (- x y)) (sqrt y)))
  (* (/ (sqrt (/ 1 x)) (sqrt 2.0)) (sqrt (/ (- x y) y)))
  (* (/ (sqrt (/ 1 x)) (sqrt 2.0)) (sqrt (/ (- x y) y)))
  (* (/ (sqrt (/ 1 x)) (sqrt 2.0)) (/ (sqrt (- x y)) (sqrt y)))
  (* (/ (sqrt (/ 1 x)) (sqrt 2.0)) (/ (sqrt (- x y)) (sqrt y)))
  (* (sqrt (/ (- x y) y)) (/ (/ 1 (sqrt x)) (sqrt 2.0)))
  (* (sqrt (/ (- x y) y)) (/ (/ 1 (sqrt x)) (sqrt 2.0)))
  (* (/ (sqrt (- x y)) (sqrt y)) (/ (/ 1 (sqrt x)) (sqrt 2.0)))
  (* (/ (sqrt (- x y)) (sqrt y)) (/ (/ 1 (sqrt x)) (sqrt 2.0)))
  (* (sqrt (/ (- x y) y)) (/ (/ 1 (sqrt x)) (sqrt 2.0)))
  (* (sqrt (/ (- x y) y)) (/ (/ 1 (sqrt x)) (sqrt 2.0)))
  (* (/ (sqrt (- x y)) (sqrt y)) (/ (/ 1 (sqrt x)) (sqrt 2.0)))
  (* (/ (sqrt (- x y)) (sqrt y)) (/ (/ 1 (sqrt x)) (sqrt 2.0)))
  (* (/ (/ 1 x) 2.0) (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))))
  (* (/ (/ 1 x) 2.0) (sqrt (/ (- x y) y)))
  (* (/ (/ 1 x) 2.0) (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))))
  (* (/ (/ 1 x) 2.0) (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)))
  (* (/ (/ 1 x) 2.0) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (/ (/ 1 x) 2.0) (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))))
  (* (/ (/ 1 x) 2.0) (/ (sqrt (- x y)) (sqrt y)))
  (* (sqrt (- x y)) (/ (/ 1 x) 2.0))
  (/ (/ (/ 1 x) 2.0) (* (cbrt y) (cbrt y)))
  (/ (/ (/ 1 x) 2.0) (sqrt y))
  (/ (/ 1 x) 2.0)
  (* (/ (/ 1 x) 2.0) (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))))
  (* (/ (/ 1 x) 2.0) (/ (+ (sqrt x) (sqrt y)) (sqrt y)))
  (* (/ (/ 1 x) 2.0) (+ (sqrt x) (sqrt y)))
  (/ (/ (/ 1 x) 2.0) (* (cbrt y) (cbrt y)))
  (/ (/ (/ 1 x) 2.0) (sqrt y))
  (/ (/ 1 x) 2.0)
  (/ (/ 1 x) 2.0)
  (/ (- x y) (* 2.0 x))
  (* (cbrt (/ (/ 1 x) 2.0)) (/ (- x y) y))
  (* (sqrt (/ (/ 1 x) 2.0)) (/ (- x y) y))
  (* (/ (cbrt (/ 1 x)) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (cbrt (/ 1 x)) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (cbrt (/ 1 x)) 2.0) (/ (- x y) y))
  (* (/ (sqrt (/ 1 x)) (cbrt 2.0)) (/ (- x y) y))
  (* (/ (sqrt (/ 1 x)) (sqrt 2.0)) (/ (- x y) y))
  (* (/ (sqrt (/ 1 x)) 2.0) (/ (- x y) y))
  (/ (/ (/ (- x y) y) (cbrt x)) (cbrt 2.0))
  (/ (/ (- x y) y) (* (sqrt 2.0) (cbrt x)))
  (/ (/ (- x y) y) (* 2.0 (cbrt x)))
  (/ (/ (- x y) y) (* (cbrt 2.0) (sqrt x)))
  (/ (/ (/ (- x y) y) (sqrt x)) (sqrt 2.0))
  (/ (/ (- x y) y) (* 2.0 (sqrt x)))
  (/ (/ (- x y) y) (* (cbrt 2.0) x))
  (/ (/ (- x y) y) (* (sqrt 2.0) x))
  (/ (/ (/ (- x y) y) x) 2.0)
  (/ (/ (/ (- x y) y) (cbrt x)) (cbrt 2.0))
  (/ (/ (- x y) y) (* (sqrt 2.0) (cbrt x)))
  (/ (/ (- x y) y) (* 2.0 (cbrt x)))
  (/ (/ (- x y) y) (* (cbrt 2.0) (sqrt x)))
  (/ (/ (/ (- x y) y) (sqrt x)) (sqrt 2.0))
  (/ (/ (- x y) y) (* 2.0 (sqrt x)))
  (/ (/ (- x y) y) (* (cbrt 2.0) x))
  (/ (/ (- x y) y) (* (sqrt 2.0) x))
  (/ (/ (/ (- x y) y) x) 2.0)
  (/ (/ (/ (- x y) y) (cbrt x)) (cbrt 2.0))
  (/ (/ (- x y) y) (* (sqrt 2.0) (cbrt x)))
  (/ (/ (- x y) y) (* 2.0 (cbrt x)))
  (/ (/ (- x y) y) (* (cbrt 2.0) (sqrt x)))
  (/ (/ (/ (- x y) y) (sqrt x)) (sqrt 2.0))
  (/ (/ (- x y) y) (* 2.0 (sqrt x)))
  (/ (/ (- x y) y) (* (cbrt 2.0) x))
  (/ (/ (- x y) y) (* (sqrt 2.0) x))
  (/ (/ (/ (- x y) y) x) 2.0)
  (/ (/ (- x y) y) (* (cbrt 2.0) x))
  (/ (/ (- x y) y) (* (sqrt 2.0) x))
  (/ (/ (/ (- x y) y) x) 2.0)
  (/ (/ (- x y) y) (* (cbrt 2.0) x))
  (/ (/ (- x y) y) (* (sqrt 2.0) x))
  (/ (/ (/ (- x y) y) x) 2.0)
  (/ (/ (/ (- x y) y) x) 2.0)
  (/ (/ (- x y) y) 2.0)
  (/ (- x y) (* 2.0 x))
  (/ (/ (- x y) y) x)
  (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))
  (neg (- x y))
  (neg 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 y) (sqrt x))
  (/ (- (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 y)) (* x x)) y)
  (* y (+ x y))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (/ (- x y) y)
  (/ (- x y) y)
  (/ (- x y) y)
6.014 * * * [progress]: adding candidates to table
6.161 * * [progress]: iteration 4 / 4
6.161 * * * [progress]: picking best candidate
6.163 * * * * [pick]: Picked  #<alt (λ (x y) (/ (/ (/ (- x y) y) x) 2.0))>
6.163 * * * [progress]: localizing error
6.169 * * * [progress]: generating rewritten candidates
6.169 * * * * [progress]: [ 1 / 2 ] rewriting at (2 1)
6.179 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1 1)
6.195 * * * [progress]: generating series expansions
6.195 * * * * [progress]: [ 1 / 2 ] generating series at (2 1)
6.195 * [approximate]: Taking taylor expansion of (/ (- x y) (* x y)) in (x y) around 0
6.195 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in y
6.195 * [taylor]: Taking taylor expansion of (- x y) in y
6.195 * [taylor]: Taking taylor expansion of x in y
6.195 * [taylor]: Taking taylor expansion of y in y
6.195 * [taylor]: Taking taylor expansion of (* x y) in y
6.195 * [taylor]: Taking taylor expansion of x in y
6.195 * [taylor]: Taking taylor expansion of y in y
6.195 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
6.195 * [taylor]: Taking taylor expansion of (- x y) in x
6.195 * [taylor]: Taking taylor expansion of x in x
6.195 * [taylor]: Taking taylor expansion of y in x
6.195 * [taylor]: Taking taylor expansion of (* x y) in x
6.195 * [taylor]: Taking taylor expansion of x in x
6.195 * [taylor]: Taking taylor expansion of y in x
6.195 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
6.195 * [taylor]: Taking taylor expansion of (- x y) in x
6.195 * [taylor]: Taking taylor expansion of x in x
6.196 * [taylor]: Taking taylor expansion of y in x
6.196 * [taylor]: Taking taylor expansion of (* x y) in x
6.196 * [taylor]: Taking taylor expansion of x in x
6.196 * [taylor]: Taking taylor expansion of y in x
6.196 * [taylor]: Taking taylor expansion of -1 in y
6.196 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.196 * [taylor]: Taking taylor expansion of y in y
6.196 * [taylor]: Taking taylor expansion of 0 in y
6.196 * [taylor]: Taking taylor expansion of 0 in y
6.197 * [taylor]: Taking taylor expansion of 0 in y
6.197 * [approximate]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in (x y) around 0
6.197 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in y
6.197 * [taylor]: Taking taylor expansion of x in y
6.197 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
6.197 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
6.197 * [taylor]: Taking taylor expansion of (/ 1 x) in y
6.197 * [taylor]: Taking taylor expansion of x in y
6.197 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.197 * [taylor]: Taking taylor expansion of y in y
6.197 * [taylor]: Taking taylor expansion of y in y
6.197 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
6.197 * [taylor]: Taking taylor expansion of x in x
6.197 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
6.197 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
6.197 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.197 * [taylor]: Taking taylor expansion of x in x
6.197 * [taylor]: Taking taylor expansion of (/ 1 y) in x
6.197 * [taylor]: Taking taylor expansion of y in x
6.197 * [taylor]: Taking taylor expansion of y in x
6.197 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
6.197 * [taylor]: Taking taylor expansion of x in x
6.197 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
6.197 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
6.197 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.197 * [taylor]: Taking taylor expansion of x in x
6.197 * [taylor]: Taking taylor expansion of (/ 1 y) in x
6.197 * [taylor]: Taking taylor expansion of y in x
6.197 * [taylor]: Taking taylor expansion of y in x
6.197 * [taylor]: Taking taylor expansion of 0 in y
6.198 * [taylor]: Taking taylor expansion of y in y
6.198 * [taylor]: Taking taylor expansion of (neg 1) in y
6.198 * [taylor]: Taking taylor expansion of 1 in y
6.198 * [taylor]: Taking taylor expansion of 0 in y
6.198 * [taylor]: Taking taylor expansion of 0 in y
6.199 * [taylor]: Taking taylor expansion of 0 in y
6.199 * [approximate]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in (x y) around 0
6.199 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in y
6.199 * [taylor]: Taking taylor expansion of x in y
6.199 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
6.199 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
6.199 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.199 * [taylor]: Taking taylor expansion of y in y
6.199 * [taylor]: Taking taylor expansion of (/ 1 x) in y
6.199 * [taylor]: Taking taylor expansion of x in y
6.199 * [taylor]: Taking taylor expansion of y in y
6.199 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
6.199 * [taylor]: Taking taylor expansion of x in x
6.199 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
6.199 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
6.199 * [taylor]: Taking taylor expansion of (/ 1 y) in x
6.199 * [taylor]: Taking taylor expansion of y in x
6.199 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.199 * [taylor]: Taking taylor expansion of x in x
6.199 * [taylor]: Taking taylor expansion of y in x
6.200 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
6.200 * [taylor]: Taking taylor expansion of x in x
6.200 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
6.200 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
6.200 * [taylor]: Taking taylor expansion of (/ 1 y) in x
6.200 * [taylor]: Taking taylor expansion of y in x
6.200 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.200 * [taylor]: Taking taylor expansion of x in x
6.200 * [taylor]: Taking taylor expansion of y in x
6.200 * [taylor]: Taking taylor expansion of 0 in y
6.200 * [taylor]: Taking taylor expansion of (neg y) in y
6.200 * [taylor]: Taking taylor expansion of y in y
6.200 * [taylor]: Taking taylor expansion of 1 in y
6.200 * [taylor]: Taking taylor expansion of 0 in y
6.201 * [taylor]: Taking taylor expansion of 0 in y
6.201 * [taylor]: Taking taylor expansion of 0 in y
6.201 * * * * [progress]: [ 2 / 2 ] generating series at (2 1 1)
6.201 * [approximate]: Taking taylor expansion of (/ (- x y) y) in (x y) around 0
6.201 * [taylor]: Taking taylor expansion of (/ (- x y) y) in y
6.201 * [taylor]: Taking taylor expansion of (- x y) in y
6.201 * [taylor]: Taking taylor expansion of x in y
6.202 * [taylor]: Taking taylor expansion of y in y
6.202 * [taylor]: Taking taylor expansion of y in y
6.202 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
6.202 * [taylor]: Taking taylor expansion of (- x y) in x
6.202 * [taylor]: Taking taylor expansion of x in x
6.202 * [taylor]: Taking taylor expansion of y in x
6.202 * [taylor]: Taking taylor expansion of y in x
6.202 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
6.202 * [taylor]: Taking taylor expansion of (- x y) in x
6.202 * [taylor]: Taking taylor expansion of x in x
6.202 * [taylor]: Taking taylor expansion of y in x
6.202 * [taylor]: Taking taylor expansion of y in x
6.202 * [taylor]: Taking taylor expansion of -1 in y
6.202 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.202 * [taylor]: Taking taylor expansion of y in y
6.202 * [taylor]: Taking taylor expansion of 0 in y
6.202 * [taylor]: Taking taylor expansion of 0 in y
6.203 * [taylor]: Taking taylor expansion of 0 in y
6.203 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in (x y) around 0
6.203 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
6.203 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
6.203 * [taylor]: Taking taylor expansion of (/ 1 x) in y
6.203 * [taylor]: Taking taylor expansion of x in y
6.203 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.203 * [taylor]: Taking taylor expansion of y in y
6.203 * [taylor]: Taking taylor expansion of y in y
6.203 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
6.203 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
6.203 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.203 * [taylor]: Taking taylor expansion of x in x
6.203 * [taylor]: Taking taylor expansion of (/ 1 y) in x
6.203 * [taylor]: Taking taylor expansion of y in x
6.203 * [taylor]: Taking taylor expansion of y in x
6.203 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
6.203 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
6.203 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.203 * [taylor]: Taking taylor expansion of x in x
6.203 * [taylor]: Taking taylor expansion of (/ 1 y) in x
6.203 * [taylor]: Taking taylor expansion of y in x
6.203 * [taylor]: Taking taylor expansion of y in x
6.203 * [taylor]: Taking taylor expansion of y in y
6.204 * [taylor]: Taking taylor expansion of (neg 1) in y
6.204 * [taylor]: Taking taylor expansion of 1 in y
6.204 * [taylor]: Taking taylor expansion of 0 in y
6.204 * [taylor]: Taking taylor expansion of 0 in y
6.204 * [taylor]: Taking taylor expansion of 0 in y
6.205 * [approximate]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in (x y) around 0
6.205 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in y
6.205 * [taylor]: Taking taylor expansion of -1 in y
6.205 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
6.205 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
6.205 * [taylor]: Taking taylor expansion of (/ 1 y) in y
6.205 * [taylor]: Taking taylor expansion of y in y
6.205 * [taylor]: Taking taylor expansion of (/ 1 x) in y
6.205 * [taylor]: Taking taylor expansion of x in y
6.205 * [taylor]: Taking taylor expansion of y in y
6.205 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in x
6.205 * [taylor]: Taking taylor expansion of -1 in x
6.205 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
6.205 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
6.205 * [taylor]: Taking taylor expansion of (/ 1 y) in x
6.205 * [taylor]: Taking taylor expansion of y in x
6.205 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.205 * [taylor]: Taking taylor expansion of x in x
6.205 * [taylor]: Taking taylor expansion of y in x
6.205 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in x
6.205 * [taylor]: Taking taylor expansion of -1 in x
6.205 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
6.205 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
6.205 * [taylor]: Taking taylor expansion of (/ 1 y) in x
6.205 * [taylor]: Taking taylor expansion of y in x
6.205 * [taylor]: Taking taylor expansion of (/ 1 x) in x
6.205 * [taylor]: Taking taylor expansion of x in x
6.205 * [taylor]: Taking taylor expansion of y in x
6.205 * [taylor]: Taking taylor expansion of y in y
6.206 * [taylor]: Taking taylor expansion of (neg 1) in y
6.206 * [taylor]: Taking taylor expansion of 1 in y
6.206 * [taylor]: Taking taylor expansion of 0 in y
6.206 * [taylor]: Taking taylor expansion of 0 in y
6.206 * [taylor]: Taking taylor expansion of 0 in y
6.207 * * * [progress]: simplifying candidates
6.209 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (- (log (- x y)) (log y)) (log x))
  (- (log (/ (- x y) y)) (log x))
  (log (/ (/ (- x y) y) x))
  (exp (/ (/ (- x y) y) x))
  (/ (/ (* (* (- x y) (- x y)) (- x y)) (* (* y y) y)) (* (* x x) x))
  (/ (* (* (/ (- x y) y) (/ (- x y) y)) (/ (- x y) y)) (* (* x x) x))
  (* (cbrt (/ (/ (- x y) y) x)) (cbrt (/ (/ (- x y) y) x)))
  (cbrt (/ (/ (- x y) y) x))
  (* (* (/ (/ (- x y) y) x) (/ (/ (- x y) y) x)) (/ (/ (- x y) y) x))
  (sqrt (/ (/ (- x y) y) x))
  (sqrt (/ (/ (- x y) y) x))
  (neg (/ (- x y) y))
  (neg x)
  (/ (/ x y) x)
  (/ (/ y y) x)
  (/ (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))) (* (cbrt x) (cbrt x)))
  (/ (cbrt (/ (- x y) y)) (cbrt x))
  (/ (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))) (sqrt x))
  (/ (cbrt (/ (- x y) y)) (sqrt x))
  (/ (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))) 1)
  (/ (cbrt (/ (- x y) y)) x)
  (/ (sqrt (/ (- x y) y)) (* (cbrt x) (cbrt x)))
  (/ (sqrt (/ (- x y) y)) (cbrt x))
  (/ (sqrt (/ (- x y) y)) (sqrt x))
  (/ (sqrt (/ (- x y) y)) (sqrt x))
  (/ (sqrt (/ (- x y) y)) 1)
  (/ (sqrt (/ (- x y) y)) x)
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))) (* (cbrt x) (cbrt x)))
  (/ (/ (cbrt (- x y)) (cbrt y)) (cbrt x))
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))) (sqrt x))
  (/ (/ (cbrt (- x y)) (cbrt y)) (sqrt x))
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))) 1)
  (/ (/ (cbrt (- x y)) (cbrt y)) x)
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (/ (cbrt (- x y)) (sqrt y)) (cbrt x))
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)) (sqrt x))
  (/ (/ (cbrt (- x y)) (sqrt y)) (sqrt x))
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)) 1)
  (/ (/ (cbrt (- x y)) (sqrt y)) x)
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) 1) (* (cbrt x) (cbrt x)))
  (/ (/ (cbrt (- x y)) y) (cbrt x))
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) 1) (sqrt x))
  (/ (/ (cbrt (- x y)) y) (sqrt x))
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) 1) 1)
  (/ (/ (cbrt (- x y)) y) x)
  (/ (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))) (* (cbrt x) (cbrt x)))
  (/ (/ (sqrt (- x y)) (cbrt y)) (cbrt x))
  (/ (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))) (sqrt x))
  (/ (/ (sqrt (- x y)) (cbrt y)) (sqrt x))
  (/ (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))) 1)
  (/ (/ (sqrt (- x y)) (cbrt y)) x)
  (/ (/ (sqrt (- x y)) (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (/ (sqrt (- x y)) (sqrt y)) (cbrt x))
  (/ (/ (sqrt (- x y)) (sqrt y)) (sqrt x))
  (/ (/ (sqrt (- x y)) (sqrt y)) (sqrt x))
  (/ (/ (sqrt (- x y)) (sqrt y)) 1)
  (/ (/ (sqrt (- x y)) (sqrt y)) x)
  (/ (/ (sqrt (- x y)) 1) (* (cbrt x) (cbrt x)))
  (/ (/ (sqrt (- x y)) y) (cbrt x))
  (/ (/ (sqrt (- x y)) 1) (sqrt x))
  (/ (/ (sqrt (- x y)) y) (sqrt x))
  (/ (/ (sqrt (- x y)) 1) 1)
  (/ (/ (sqrt (- x y)) y) x)
  (/ (/ 1 (* (cbrt y) (cbrt y))) (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) (cbrt y)) (cbrt x))
  (/ (/ 1 (* (cbrt y) (cbrt y))) (sqrt x))
  (/ (/ (- x y) (cbrt y)) (sqrt x))
  (/ (/ 1 (* (cbrt y) (cbrt y))) 1)
  (/ (/ (- x y) (cbrt y)) x)
  (/ (/ 1 (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) (sqrt y)) (cbrt x))
  (/ (/ 1 (sqrt y)) (sqrt x))
  (/ (/ (- x y) (sqrt y)) (sqrt x))
  (/ (/ 1 (sqrt y)) 1)
  (/ (/ (- x y) (sqrt y)) x)
  (/ (/ 1 1) (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) y) (cbrt x))
  (/ (/ 1 1) (sqrt x))
  (/ (/ (- x y) y) (sqrt x))
  (/ (/ 1 1) 1)
  (/ (/ (- x y) y) x)
  (/ (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))) (* (cbrt x) (cbrt x)))
  (/ (/ (- (sqrt x) (sqrt y)) (cbrt y)) (cbrt x))
  (/ (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))) (sqrt x))
  (/ (/ (- (sqrt x) (sqrt y)) (cbrt y)) (sqrt x))
  (/ (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))) 1)
  (/ (/ (- (sqrt x) (sqrt y)) (cbrt y)) x)
  (/ (/ (+ (sqrt x) (sqrt y)) (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (/ (- (sqrt x) (sqrt y)) (sqrt y)) (cbrt x))
  (/ (/ (+ (sqrt x) (sqrt y)) (sqrt y)) (sqrt x))
  (/ (/ (- (sqrt x) (sqrt y)) (sqrt y)) (sqrt x))
  (/ (/ (+ (sqrt x) (sqrt y)) (sqrt y)) 1)
  (/ (/ (- (sqrt x) (sqrt y)) (sqrt y)) x)
  (/ (/ (+ (sqrt x) (sqrt y)) 1) (* (cbrt x) (cbrt x)))
  (/ (/ (- (sqrt x) (sqrt y)) y) (cbrt x))
  (/ (/ (+ (sqrt x) (sqrt y)) 1) (sqrt x))
  (/ (/ (- (sqrt x) (sqrt y)) y) (sqrt x))
  (/ (/ (+ (sqrt x) (sqrt y)) 1) 1)
  (/ (/ (- (sqrt x) (sqrt y)) y) x)
  (/ (/ 1 (* (cbrt y) (cbrt y))) (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) (cbrt y)) (cbrt x))
  (/ (/ 1 (* (cbrt y) (cbrt y))) (sqrt x))
  (/ (/ (- x y) (cbrt y)) (sqrt x))
  (/ (/ 1 (* (cbrt y) (cbrt y))) 1)
  (/ (/ (- x y) (cbrt y)) x)
  (/ (/ 1 (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) (sqrt y)) (cbrt x))
  (/ (/ 1 (sqrt y)) (sqrt x))
  (/ (/ (- x y) (sqrt y)) (sqrt x))
  (/ (/ 1 (sqrt y)) 1)
  (/ (/ (- x y) (sqrt y)) x)
  (/ (/ 1 1) (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) y) (cbrt x))
  (/ (/ 1 1) (sqrt x))
  (/ (/ (- x y) y) (sqrt x))
  (/ (/ 1 1) 1)
  (/ (/ (- x y) y) x)
  (/ 1 (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) y) (cbrt x))
  (/ 1 (sqrt x))
  (/ (/ (- x y) y) (sqrt x))
  (/ 1 1)
  (/ (/ (- x y) y) x)
  (/ (- x y) (* (cbrt x) (cbrt x)))
  (/ (/ 1 y) (cbrt x))
  (/ (- x y) (sqrt x))
  (/ (/ 1 y) (sqrt x))
  (/ (- x y) 1)
  (/ (/ 1 y) x)
  (/ 1 x)
  (/ x (/ (- x y) y))
  (/ (/ (- x y) y) (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) y) (sqrt x))
  (/ (/ (- x y) y) 1)
  (/ x (cbrt (/ (- x y) y)))
  (/ x (sqrt (/ (- x y) y)))
  (/ x (/ (cbrt (- x y)) (cbrt y)))
  (/ x (/ (cbrt (- x y)) (sqrt y)))
  (/ x (/ (cbrt (- x y)) y))
  (/ x (/ (sqrt (- x y)) (cbrt y)))
  (/ x (/ (sqrt (- x y)) (sqrt y)))
  (/ x (/ (sqrt (- x y)) y))
  (/ x (/ (- x y) (cbrt y)))
  (/ x (/ (- x y) (sqrt y)))
  (/ x (/ (- x y) y))
  (/ x (/ (- (sqrt x) (sqrt y)) (cbrt y)))
  (/ x (/ (- (sqrt x) (sqrt y)) (sqrt y)))
  (/ x (/ (- (sqrt x) (sqrt y)) y))
  (/ x (/ (- x y) (cbrt y)))
  (/ x (/ (- x y) (sqrt y)))
  (/ x (/ (- x y) y))
  (/ x (/ (- x y) y))
  (/ x (/ 1 y))
  (* 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))
  (neg (- x y))
  (neg 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))
  (- (/ 1 y) (/ 1 x))
  (- (/ 1 y) (/ 1 x))
  (- (/ 1 y) (/ 1 x))
  (- (/ x y) 1)
  (- (/ x y) 1)
  (- (/ x y) 1)
6.214 * * [simplify]: iteration  0 :  197  enodes  (cost  1902 )
6.259 * * [simplify]: iteration  1 :  456  enodes  (cost  1810 )
6.492 * * [simplify]: iteration  2 :  1287  enodes  (cost  1741 )
7.823 * * [simplify]: iteration  3 :  3767  enodes  (cost  1739 )
8.419 * * [simplify]: iteration  done :  5000  enodes  (cost  1737 )
8.419 * [simplify]: Simplified to:
   (log (/ (/ (- x y) y) x))
  (log (/ (/ (- x y) y) x))
  (log (/ (/ (- x y) y) x))
  (exp (/ (/ (- x y) y) x))
  (pow (/ (/ (- x y) y) x) 3)
  (pow (/ (/ (- x y) y) x) 3)
  (* (cbrt (/ (/ (- x y) y) x)) (cbrt (/ (/ (- x y) y) x)))
  (cbrt (/ (/ (- x y) y) x))
  (pow (/ (/ (- x y) y) x) 3)
  (sqrt (/ (/ (- x y) y) x))
  (sqrt (/ (/ (- x y) y) x))
  (/ (- y x) y)
  (neg x)
  (/ 1 y)
  (/ 1 x)
  (/ (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))) (* (cbrt x) (cbrt x)))
  (/ (cbrt (/ (- x y) y)) (cbrt x))
  (/ (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))) (sqrt x))
  (/ (cbrt (/ (- x y) y)) (sqrt x))
  (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y)))
  (/ (cbrt (/ (- x y) y)) x)
  (/ (sqrt (/ (- x y) y)) (* (cbrt x) (cbrt x)))
  (/ (sqrt (/ (- x y) y)) (cbrt x))
  (/ (sqrt (/ (- x y) y)) (sqrt x))
  (/ (sqrt (/ (- x y) y)) (sqrt x))
  (sqrt (/ (- x y) y))
  (/ (sqrt (/ (- x y) y)) x)
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))) (* (cbrt x) (cbrt x)))
  (/ (/ (cbrt (- x y)) (cbrt y)) (cbrt x))
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))) (sqrt x))
  (/ (/ (cbrt (- x y)) (cbrt y)) (sqrt x))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y)))
  (/ (/ (cbrt (- x y)) (cbrt y)) x)
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (/ (cbrt (- x y)) (sqrt y)) (cbrt x))
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)) (sqrt x))
  (/ (/ (cbrt (- x y)) (sqrt y)) (sqrt x))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y))
  (/ (/ (cbrt (- x y)) (sqrt y)) x)
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt x) (cbrt x)))
  (/ (/ (cbrt (- x y)) y) (cbrt x))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt x))
  (/ (/ (cbrt (- x y)) y) (sqrt x))
  (* (cbrt (- x y)) (cbrt (- x y)))
  (/ (/ (cbrt (- x y)) y) x)
  (/ (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))) (* (cbrt x) (cbrt x)))
  (/ (/ (sqrt (- x y)) (cbrt y)) (cbrt x))
  (/ (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))) (sqrt x))
  (/ (/ (sqrt (- x y)) (cbrt y)) (sqrt x))
  (/ (sqrt (- x y)) (* (cbrt y) (cbrt y)))
  (/ (/ (sqrt (- x y)) (cbrt y)) x)
  (/ (/ (sqrt (- x y)) (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (/ (sqrt (- x y)) (sqrt y)) (cbrt x))
  (/ (/ (sqrt (- x y)) (sqrt y)) (sqrt x))
  (/ (/ (sqrt (- x y)) (sqrt y)) (sqrt x))
  (/ (sqrt (- x y)) (sqrt y))
  (/ (/ (sqrt (- x y)) (sqrt y)) x)
  (/ (sqrt (- x y)) (* (cbrt x) (cbrt x)))
  (/ (/ (sqrt (- x y)) y) (cbrt x))
  (/ (sqrt (- x y)) (sqrt x))
  (/ (/ (sqrt (- x y)) y) (sqrt x))
  (sqrt (- x y))
  (/ (/ (sqrt (- x y)) y) x)
  (/ (/ 1 (* (cbrt y) (cbrt y))) (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) (cbrt y)) (cbrt x))
  (/ (/ 1 (* (cbrt y) (cbrt y))) (sqrt x))
  (/ (/ (- x y) (cbrt y)) (sqrt x))
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (/ (- x y) (cbrt y)) x)
  (/ (/ 1 (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) (sqrt y)) (cbrt x))
  (/ (/ 1 (sqrt y)) (sqrt x))
  (/ (/ (- x y) (sqrt y)) (sqrt x))
  (/ 1 (sqrt y))
  (/ (/ (- x y) (sqrt y)) x)
  (/ 1 (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) y) (cbrt x))
  (/ 1 (sqrt x))
  (/ (/ (- x y) y) (sqrt x))
  1
  (- (/ 1 y) (/ 1 x))
  (/ (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))) (* (cbrt x) (cbrt x)))
  (/ (/ (- (sqrt x) (sqrt y)) (cbrt y)) (cbrt x))
  (/ (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))) (sqrt x))
  (/ (/ (- (sqrt x) (sqrt y)) (cbrt y)) (sqrt x))
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y)))
  (/ (/ (- (sqrt x) (sqrt y)) (cbrt y)) x)
  (/ (/ (+ (sqrt x) (sqrt y)) (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (- (/ (sqrt x) (sqrt y)) 1) (cbrt x))
  (/ (/ (+ (sqrt x) (sqrt y)) (sqrt y)) (sqrt x))
  (/ (- (/ (sqrt x) (sqrt y)) 1) (sqrt x))
  (/ (+ (sqrt x) (sqrt y)) (sqrt y))
  (/ (- (/ (sqrt x) (sqrt y)) 1) x)
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (/ (- (sqrt x) (sqrt y)) y) (cbrt x))
  (/ (+ (sqrt x) (sqrt y)) (sqrt x))
  (/ (/ (- (sqrt x) (sqrt y)) y) (sqrt x))
  (+ (sqrt x) (sqrt y))
  (/ (/ (- (sqrt x) (sqrt y)) y) x)
  (/ (/ 1 (* (cbrt y) (cbrt y))) (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) (cbrt y)) (cbrt x))
  (/ (/ 1 (* (cbrt y) (cbrt y))) (sqrt x))
  (/ (/ (- x y) (cbrt y)) (sqrt x))
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (/ (- x y) (cbrt y)) x)
  (/ (/ 1 (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) (sqrt y)) (cbrt x))
  (/ (/ 1 (sqrt y)) (sqrt x))
  (/ (/ (- x y) (sqrt y)) (sqrt x))
  (/ 1 (sqrt y))
  (/ (/ (- x y) (sqrt y)) x)
  (/ 1 (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) y) (cbrt x))
  (/ 1 (sqrt x))
  (/ (/ (- x y) y) (sqrt x))
  1
  (- (/ 1 y) (/ 1 x))
  (/ 1 (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) y) (cbrt x))
  (/ 1 (sqrt x))
  (/ (/ (- x y) y) (sqrt x))
  1
  (- (/ 1 y) (/ 1 x))
  (/ (- x y) (* (cbrt x) (cbrt x)))
  (/ (/ 1 y) (cbrt x))
  (/ (- x y) (sqrt x))
  (/ (/ 1 y) (sqrt x))
  (- x y)
  (/ (/ 1 y) x)
  (/ 1 x)
  (/ x (/ (- x y) y))
  (/ (/ (- x y) y) (* (cbrt x) (cbrt x)))
  (/ (/ (- x y) y) (sqrt x))
  (/ (- x y) y)
  (/ x (cbrt (/ (- x y) y)))
  (/ x (sqrt (/ (- x y) y)))
  (/ x (/ (cbrt (- x y)) (cbrt y)))
  (/ x (/ (cbrt (- x y)) (sqrt y)))
  (/ x (/ (cbrt (- x y)) y))
  (/ x (/ (sqrt (- x y)) (cbrt y)))
  (/ x (/ (sqrt (- x y)) (sqrt y)))
  (/ x (/ (sqrt (- x y)) y))
  (/ x (/ (- x y) (cbrt y)))
  (/ x (/ (- x y) (sqrt y)))
  (/ x (/ (- x y) y))
  (/ x (/ (- (sqrt x) (sqrt y)) (cbrt y)))
  (/ x (- (/ (sqrt x) (sqrt y)) 1))
  (/ x (/ (- (sqrt x) (sqrt y)) y))
  (/ x (/ (- x y) (cbrt y)))
  (/ x (/ (- x y) (sqrt y)))
  (/ x (/ (- x y) y))
  (/ x (/ (- x y) y))
  (* y x)
  (* y x)
  (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))
  (- y x)
  (neg 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 (+ (* y (+ x y)) (* x x)))
  (* y (+ x y))
  (- (/ 1 y) (/ 1 x))
  (- (/ 1 y) (/ 1 x))
  (- (/ 1 y) (/ 1 x))
  (/ (- x y) y)
  (/ (- x y) y)
  (/ (- x y) y)
8.421 * * * [progress]: adding candidates to table
8.523 * [progress]: [Phase 3 of 3] Extracting.
8.523 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (/ (/ (/ (- x y) y) x) 2.0))> #<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))>)
8.524 * * * [regime-changes]: Trying 2 branch expressions: (y x)
8.524 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (/ (/ (/ (- x y) y) x) 2.0))> #<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))>)
8.556 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (/ (/ (/ (- x y) y) x) 2.0))> #<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))>)
8.586 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
8.586 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (/ 0.5 y) (/ 0.5 x))
8.586 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
8.586 * * [simplify]: iteration  done :  6  enodes  (cost  7 )
8.586 * [simplify]: Simplified to:
   (- (/ 0.5 y) (/ 0.5 x))
9.292 * [regime-testing]: End program error score: 0.013501687710963871
9.356 * [regime-testing]: Target error score: 0.013501687710963871