9.435 * [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))
0.019 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
0.020 * * [simplify]: iteration  1 :  18  enodes  (cost  9 )
0.022 * * [simplify]: iteration  2 :  47  enodes  (cost  9 )
0.030 * * [simplify]: iteration  3 :  104  enodes  (cost  9 )
0.049 * * [simplify]: iteration  4 :  162  enodes  (cost  9 )
0.065 * * [simplify]: iteration  5 :  191  enodes  (cost  9 )
0.079 * * [simplify]: iteration  6 :  207  enodes  (cost  9 )
0.095 * * [simplify]: iteration  7 :  216  enodes  (cost  9 )
0.120 * * [simplify]: iteration  done :  216  enodes  (cost  9 )
0.120 * [simplify]: Simplified to:
   (/ (- x y) (* (* x 2.0) y))
0.120 * * [progress]: iteration 1 / 4
0.120 * * * [progress]: picking best candidate
0.123 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- x y) (* (* x 2.0) y)))>
0.123 * * * [progress]: localizing error
0.129 * * * [progress]: generating rewritten candidates
0.129 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.139 * * * [progress]: generating series expansions
0.140 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.140 * [approximate]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in (x y) around 0
0.140 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in y
0.140 * [taylor]: Taking taylor expansion of 0.5 in y
0.140 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in y
0.140 * [taylor]: Taking taylor expansion of (- x y) in y
0.140 * [taylor]: Taking taylor expansion of x in y
0.140 * [taylor]: Taking taylor expansion of y in y
0.140 * [taylor]: Taking taylor expansion of (* x y) in y
0.140 * [taylor]: Taking taylor expansion of x in y
0.140 * [taylor]: Taking taylor expansion of y in y
0.140 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
0.140 * [taylor]: Taking taylor expansion of 0.5 in x
0.140 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
0.140 * [taylor]: Taking taylor expansion of (- x y) in x
0.140 * [taylor]: Taking taylor expansion of x in x
0.140 * [taylor]: Taking taylor expansion of y in x
0.140 * [taylor]: Taking taylor expansion of (* x y) in x
0.140 * [taylor]: Taking taylor expansion of x in x
0.140 * [taylor]: Taking taylor expansion of y in x
0.140 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
0.140 * [taylor]: Taking taylor expansion of 0.5 in x
0.140 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
0.140 * [taylor]: Taking taylor expansion of (- x y) in x
0.140 * [taylor]: Taking taylor expansion of x in x
0.140 * [taylor]: Taking taylor expansion of y in x
0.140 * [taylor]: Taking taylor expansion of (* x y) in x
0.140 * [taylor]: Taking taylor expansion of x in x
0.140 * [taylor]: Taking taylor expansion of y in x
0.140 * [taylor]: Taking taylor expansion of -0.5 in y
0.141 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.141 * [taylor]: Taking taylor expansion of 0.5 in y
0.141 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.141 * [taylor]: Taking taylor expansion of y in y
0.141 * [taylor]: Taking taylor expansion of 0 in y
0.141 * [taylor]: Taking taylor expansion of 0 in y
0.142 * [taylor]: Taking taylor expansion of 0 in y
0.142 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in (x y) around 0
0.142 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in y
0.142 * [taylor]: Taking taylor expansion of 0.5 in y
0.142 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in y
0.142 * [taylor]: Taking taylor expansion of x in y
0.142 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
0.142 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.142 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.142 * [taylor]: Taking taylor expansion of x in y
0.142 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.142 * [taylor]: Taking taylor expansion of y in y
0.142 * [taylor]: Taking taylor expansion of y in y
0.142 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
0.142 * [taylor]: Taking taylor expansion of 0.5 in x
0.142 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
0.142 * [taylor]: Taking taylor expansion of x in x
0.143 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
0.143 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.143 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.143 * [taylor]: Taking taylor expansion of x in x
0.143 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.143 * [taylor]: Taking taylor expansion of y in x
0.143 * [taylor]: Taking taylor expansion of y in x
0.143 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
0.143 * [taylor]: Taking taylor expansion of 0.5 in x
0.143 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
0.143 * [taylor]: Taking taylor expansion of x in x
0.143 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
0.143 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.143 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.143 * [taylor]: Taking taylor expansion of x in x
0.143 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.143 * [taylor]: Taking taylor expansion of y in x
0.143 * [taylor]: Taking taylor expansion of y in x
0.143 * [taylor]: Taking taylor expansion of 0 in y
0.144 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.144 * [taylor]: Taking taylor expansion of 0.5 in y
0.144 * [taylor]: Taking taylor expansion of y in y
0.144 * [taylor]: Taking taylor expansion of (neg 0.5) in y
0.144 * [taylor]: Taking taylor expansion of 0.5 in y
0.145 * [taylor]: Taking taylor expansion of 0 in y
0.145 * [taylor]: Taking taylor expansion of 0 in y
0.146 * [taylor]: Taking taylor expansion of 0 in y
0.146 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in (x y) around 0
0.146 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in y
0.146 * [taylor]: Taking taylor expansion of 0.5 in y
0.146 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in y
0.146 * [taylor]: Taking taylor expansion of x in y
0.146 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
0.146 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.146 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.146 * [taylor]: Taking taylor expansion of y in y
0.146 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.146 * [taylor]: Taking taylor expansion of x in y
0.146 * [taylor]: Taking taylor expansion of y in y
0.146 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
0.146 * [taylor]: Taking taylor expansion of 0.5 in x
0.146 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
0.146 * [taylor]: Taking taylor expansion of x in x
0.146 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
0.146 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.146 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.146 * [taylor]: Taking taylor expansion of y in x
0.146 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.146 * [taylor]: Taking taylor expansion of x in x
0.146 * [taylor]: Taking taylor expansion of y in x
0.146 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
0.146 * [taylor]: Taking taylor expansion of 0.5 in x
0.146 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.147 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
0.147 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 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 (/ 1 x) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.147 * [taylor]: Taking taylor expansion of y in x
0.147 * [taylor]: Taking taylor expansion of 0 in y
0.147 * [taylor]: Taking taylor expansion of (neg (* 0.5 y)) in y
0.147 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.147 * [taylor]: Taking taylor expansion of 0.5 in y
0.147 * [taylor]: Taking taylor expansion of y in y
0.147 * [taylor]: Taking taylor expansion of 0.5 in y
0.148 * [taylor]: Taking taylor expansion of 0 in y
0.148 * [taylor]: Taking taylor expansion of 0 in y
0.149 * [taylor]: Taking taylor expansion of 0 in y
0.149 * * * [progress]: simplifying candidates
0.149 * [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)))
0.151 * * [simplify]: iteration  0 :  82  enodes  (cost  447 )
0.163 * * [simplify]: iteration  1 :  236  enodes  (cost  436 )
0.217 * * [simplify]: iteration  2 :  917  enodes  (cost  359 )
0.697 * * [simplify]: iteration  3 :  4823  enodes  (cost  351 )
1.500 * * [simplify]: iteration  done :  5000  enodes  (cost  351 )
1.501 * [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))
1.501 * * * [progress]: adding candidates to table
1.550 * * [progress]: iteration 2 / 4
1.550 * * * [progress]: picking best candidate
1.554 * * * * [pick]: Picked  #<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))>
1.554 * * * [progress]: localizing error
1.559 * * * [progress]: generating rewritten candidates
1.559 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
1.573 * * * [progress]: generating series expansions
1.573 * * * * [progress]: [ 1 / 1 ] generating series at (2)
1.573 * [approximate]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in (y x) around 0
1.573 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
1.573 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
1.573 * [taylor]: Taking taylor expansion of 0.5 in x
1.573 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.573 * [taylor]: Taking taylor expansion of y in x
1.573 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
1.573 * [taylor]: Taking taylor expansion of 0.5 in x
1.573 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.573 * [taylor]: Taking taylor expansion of x in x
1.573 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
1.573 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
1.573 * [taylor]: Taking taylor expansion of 0.5 in y
1.573 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.573 * [taylor]: Taking taylor expansion of y in y
1.573 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
1.573 * [taylor]: Taking taylor expansion of 0.5 in y
1.573 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.573 * [taylor]: Taking taylor expansion of x in y
1.573 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
1.573 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
1.573 * [taylor]: Taking taylor expansion of 0.5 in y
1.573 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.573 * [taylor]: Taking taylor expansion of y in y
1.573 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
1.573 * [taylor]: Taking taylor expansion of 0.5 in y
1.573 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.573 * [taylor]: Taking taylor expansion of x in y
1.573 * [taylor]: Taking taylor expansion of 0.5 in x
1.574 * [taylor]: Taking taylor expansion of (neg (* 0.5 (/ 1 x))) in x
1.574 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
1.574 * [taylor]: Taking taylor expansion of 0.5 in x
1.574 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.574 * [taylor]: Taking taylor expansion of x in x
1.574 * [taylor]: Taking taylor expansion of 0 in x
1.574 * [taylor]: Taking taylor expansion of 0 in x
1.575 * [taylor]: Taking taylor expansion of 0 in x
1.575 * [approximate]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in (y x) around 0
1.575 * [taylor]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in x
1.575 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
1.575 * [taylor]: Taking taylor expansion of 0.5 in x
1.575 * [taylor]: Taking taylor expansion of y in x
1.575 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
1.575 * [taylor]: Taking taylor expansion of 0.5 in x
1.575 * [taylor]: Taking taylor expansion of x in x
1.575 * [taylor]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in y
1.575 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
1.575 * [taylor]: Taking taylor expansion of 0.5 in y
1.575 * [taylor]: Taking taylor expansion of y in y
1.575 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
1.575 * [taylor]: Taking taylor expansion of 0.5 in y
1.575 * [taylor]: Taking taylor expansion of x in y
1.575 * [taylor]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in y
1.575 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
1.575 * [taylor]: Taking taylor expansion of 0.5 in y
1.575 * [taylor]: Taking taylor expansion of y in y
1.575 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
1.575 * [taylor]: Taking taylor expansion of 0.5 in y
1.575 * [taylor]: Taking taylor expansion of x in y
1.575 * [taylor]: Taking taylor expansion of (neg (* 0.5 x)) in x
1.575 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
1.575 * [taylor]: Taking taylor expansion of 0.5 in x
1.575 * [taylor]: Taking taylor expansion of x in x
1.576 * [taylor]: Taking taylor expansion of 0.5 in x
1.576 * [taylor]: Taking taylor expansion of 0 in x
1.576 * [taylor]: Taking taylor expansion of 0 in x
1.576 * [approximate]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in (y x) around 0
1.576 * [taylor]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in x
1.576 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
1.576 * [taylor]: Taking taylor expansion of 0.5 in x
1.576 * [taylor]: Taking taylor expansion of x in x
1.576 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
1.576 * [taylor]: Taking taylor expansion of 0.5 in x
1.576 * [taylor]: Taking taylor expansion of y in x
1.576 * [taylor]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in y
1.576 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
1.576 * [taylor]: Taking taylor expansion of 0.5 in y
1.576 * [taylor]: Taking taylor expansion of x in y
1.576 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
1.576 * [taylor]: Taking taylor expansion of 0.5 in y
1.576 * [taylor]: Taking taylor expansion of y in y
1.576 * [taylor]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in y
1.576 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
1.576 * [taylor]: Taking taylor expansion of 0.5 in y
1.576 * [taylor]: Taking taylor expansion of x in y
1.576 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
1.576 * [taylor]: Taking taylor expansion of 0.5 in y
1.576 * [taylor]: Taking taylor expansion of y in y
1.577 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
1.577 * [taylor]: Taking taylor expansion of 0.5 in x
1.577 * [taylor]: Taking taylor expansion of x in x
1.577 * [taylor]: Taking taylor expansion of (neg 0.5) in x
1.577 * [taylor]: Taking taylor expansion of 0.5 in x
1.577 * [taylor]: Taking taylor expansion of 0 in x
1.577 * [taylor]: Taking taylor expansion of 0 in x
1.577 * * * [progress]: simplifying candidates
1.578 * [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)))
1.579 * * [simplify]: iteration  0 :  61  enodes  (cost  315 )
1.587 * * [simplify]: iteration  1 :  134  enodes  (cost  304 )
1.612 * * [simplify]: iteration  2 :  284  enodes  (cost  282 )
1.652 * * [simplify]: iteration  3 :  731  enodes  (cost  282 )
1.821 * * [simplify]: iteration  4 :  2198  enodes  (cost  280 )
2.306 * * [simplify]: iteration  done :  5001  enodes  (cost  280 )
2.307 * [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 y) (/ 0.5 y)) (* (/ 0.5 x) (+ (/ 0.5 y) (/ 0.5 x))))
  (/ (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))
2.307 * * * [progress]: adding candidates to table
2.341 * * [progress]: iteration 3 / 4
2.341 * * * [progress]: picking best candidate
2.343 * * * * [pick]: Picked  #<alt (λ (x y) (* (/ 1 (* x 2.0)) (/ (- x y) y)))>
2.343 * * * [progress]: localizing error
2.350 * * * [progress]: generating rewritten candidates
2.350 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
2.373 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
2.384 * * * [progress]: generating series expansions
2.385 * * * * [progress]: [ 1 / 2 ] generating series at (2)
2.385 * [approximate]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in (x y) around 0
2.385 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in y
2.385 * [taylor]: Taking taylor expansion of 0.5 in y
2.385 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in y
2.385 * [taylor]: Taking taylor expansion of (- x y) in y
2.385 * [taylor]: Taking taylor expansion of x in y
2.385 * [taylor]: Taking taylor expansion of y in y
2.385 * [taylor]: Taking taylor expansion of (* x y) in y
2.385 * [taylor]: Taking taylor expansion of x in y
2.385 * [taylor]: Taking taylor expansion of y in y
2.385 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
2.385 * [taylor]: Taking taylor expansion of 0.5 in x
2.385 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
2.385 * [taylor]: Taking taylor expansion of (- x y) in x
2.385 * [taylor]: Taking taylor expansion of x in x
2.385 * [taylor]: Taking taylor expansion of y in x
2.385 * [taylor]: Taking taylor expansion of (* x y) in x
2.385 * [taylor]: Taking taylor expansion of x in x
2.385 * [taylor]: Taking taylor expansion of y in x
2.385 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
2.385 * [taylor]: Taking taylor expansion of 0.5 in x
2.385 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
2.385 * [taylor]: Taking taylor expansion of (- x y) in x
2.385 * [taylor]: Taking taylor expansion of x in x
2.385 * [taylor]: Taking taylor expansion of y in x
2.385 * [taylor]: Taking taylor expansion of (* x y) in x
2.385 * [taylor]: Taking taylor expansion of x in x
2.385 * [taylor]: Taking taylor expansion of y in x
2.386 * [taylor]: Taking taylor expansion of -0.5 in y
2.386 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
2.386 * [taylor]: Taking taylor expansion of 0.5 in y
2.386 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.386 * [taylor]: Taking taylor expansion of y in y
2.386 * [taylor]: Taking taylor expansion of 0 in y
2.386 * [taylor]: Taking taylor expansion of 0 in y
2.387 * [taylor]: Taking taylor expansion of 0 in y
2.387 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in (x y) around 0
2.387 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in y
2.387 * [taylor]: Taking taylor expansion of 0.5 in y
2.387 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in y
2.387 * [taylor]: Taking taylor expansion of x in y
2.387 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
2.387 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
2.387 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.387 * [taylor]: Taking taylor expansion of x in y
2.387 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.387 * [taylor]: Taking taylor expansion of y in y
2.387 * [taylor]: Taking taylor expansion of y in y
2.387 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
2.387 * [taylor]: Taking taylor expansion of 0.5 in x
2.387 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
2.387 * [taylor]: Taking taylor expansion of x in x
2.387 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
2.387 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.387 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.387 * [taylor]: Taking taylor expansion of x in x
2.387 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.387 * [taylor]: Taking taylor expansion of y in x
2.387 * [taylor]: Taking taylor expansion of y in x
2.387 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
2.387 * [taylor]: Taking taylor expansion of 0.5 in x
2.387 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
2.387 * [taylor]: Taking taylor expansion of x in x
2.387 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
2.387 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.387 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.388 * [taylor]: Taking taylor expansion of x in x
2.388 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.388 * [taylor]: Taking taylor expansion of y in x
2.388 * [taylor]: Taking taylor expansion of y in x
2.388 * [taylor]: Taking taylor expansion of 0 in y
2.388 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
2.388 * [taylor]: Taking taylor expansion of 0.5 in y
2.388 * [taylor]: Taking taylor expansion of y in y
2.388 * [taylor]: Taking taylor expansion of (neg 0.5) in y
2.388 * [taylor]: Taking taylor expansion of 0.5 in y
2.389 * [taylor]: Taking taylor expansion of 0 in y
2.389 * [taylor]: Taking taylor expansion of 0 in y
2.389 * [taylor]: Taking taylor expansion of 0 in y
2.390 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in (x y) around 0
2.390 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in y
2.390 * [taylor]: Taking taylor expansion of 0.5 in y
2.390 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in y
2.390 * [taylor]: Taking taylor expansion of x in y
2.390 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
2.390 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
2.390 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.390 * [taylor]: Taking taylor expansion of y in y
2.390 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.390 * [taylor]: Taking taylor expansion of x in y
2.390 * [taylor]: Taking taylor expansion of y in y
2.390 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
2.390 * [taylor]: Taking taylor expansion of 0.5 in x
2.390 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
2.390 * [taylor]: Taking taylor expansion of x in x
2.390 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
2.390 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.390 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.390 * [taylor]: Taking taylor expansion of y in x
2.390 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.390 * [taylor]: Taking taylor expansion of x in x
2.390 * [taylor]: Taking taylor expansion of y in x
2.390 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
2.390 * [taylor]: Taking taylor expansion of 0.5 in x
2.390 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
2.390 * [taylor]: Taking taylor expansion of x in x
2.390 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
2.390 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.390 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.390 * [taylor]: Taking taylor expansion of y in x
2.390 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.390 * [taylor]: Taking taylor expansion of x in x
2.390 * [taylor]: Taking taylor expansion of y in x
2.391 * [taylor]: Taking taylor expansion of 0 in y
2.391 * [taylor]: Taking taylor expansion of (neg (* 0.5 y)) in y
2.391 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
2.391 * [taylor]: Taking taylor expansion of 0.5 in y
2.391 * [taylor]: Taking taylor expansion of y in y
2.391 * [taylor]: Taking taylor expansion of 0.5 in y
2.391 * [taylor]: Taking taylor expansion of 0 in y
2.392 * [taylor]: Taking taylor expansion of 0 in y
2.392 * [taylor]: Taking taylor expansion of 0 in y
2.393 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
2.393 * [approximate]: Taking taylor expansion of (/ (- x y) y) in (x y) around 0
2.393 * [taylor]: Taking taylor expansion of (/ (- x y) y) in y
2.393 * [taylor]: Taking taylor expansion of (- x y) in y
2.393 * [taylor]: Taking taylor expansion of x in y
2.393 * [taylor]: Taking taylor expansion of y in y
2.393 * [taylor]: Taking taylor expansion of y in y
2.393 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
2.393 * [taylor]: Taking taylor expansion of (- x y) in x
2.393 * [taylor]: Taking taylor expansion of x in x
2.393 * [taylor]: Taking taylor expansion of y in x
2.393 * [taylor]: Taking taylor expansion of y in x
2.393 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
2.393 * [taylor]: Taking taylor expansion of (- x y) in x
2.393 * [taylor]: Taking taylor expansion of x in x
2.393 * [taylor]: Taking taylor expansion of y in x
2.393 * [taylor]: Taking taylor expansion of y in x
2.393 * [taylor]: Taking taylor expansion of -1 in y
2.393 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.393 * [taylor]: Taking taylor expansion of y in y
2.393 * [taylor]: Taking taylor expansion of 0 in y
2.393 * [taylor]: Taking taylor expansion of 0 in y
2.394 * [taylor]: Taking taylor expansion of 0 in y
2.394 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in (x y) around 0
2.394 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
2.394 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
2.394 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.394 * [taylor]: Taking taylor expansion of x in y
2.394 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.394 * [taylor]: Taking taylor expansion of y in y
2.394 * [taylor]: Taking taylor expansion of y in y
2.394 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
2.394 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.394 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.394 * [taylor]: Taking taylor expansion of x in x
2.394 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.394 * [taylor]: Taking taylor expansion of y in x
2.394 * [taylor]: Taking taylor expansion of y in x
2.394 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
2.394 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.394 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.394 * [taylor]: Taking taylor expansion of x in x
2.394 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.394 * [taylor]: Taking taylor expansion of y in x
2.394 * [taylor]: Taking taylor expansion of y in x
2.394 * [taylor]: Taking taylor expansion of y in y
2.395 * [taylor]: Taking taylor expansion of (neg 1) in y
2.395 * [taylor]: Taking taylor expansion of 1 in y
2.395 * [taylor]: Taking taylor expansion of 0 in y
2.395 * [taylor]: Taking taylor expansion of 0 in y
2.395 * [taylor]: Taking taylor expansion of 0 in y
2.396 * [approximate]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in (x y) around 0
2.396 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in y
2.396 * [taylor]: Taking taylor expansion of -1 in y
2.396 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
2.396 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
2.396 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.396 * [taylor]: Taking taylor expansion of y in y
2.396 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.396 * [taylor]: Taking taylor expansion of x in y
2.396 * [taylor]: Taking taylor expansion of y in y
2.396 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in x
2.396 * [taylor]: Taking taylor expansion of -1 in x
2.396 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
2.396 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.396 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.396 * [taylor]: Taking taylor expansion of y in x
2.396 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.396 * [taylor]: Taking taylor expansion of x in x
2.396 * [taylor]: Taking taylor expansion of y in x
2.396 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in x
2.396 * [taylor]: Taking taylor expansion of -1 in x
2.396 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
2.396 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.396 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.396 * [taylor]: Taking taylor expansion of y in x
2.396 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.396 * [taylor]: Taking taylor expansion of x in x
2.396 * [taylor]: Taking taylor expansion of y in x
2.396 * [taylor]: Taking taylor expansion of y in y
2.396 * [taylor]: Taking taylor expansion of (neg 1) in y
2.396 * [taylor]: Taking taylor expansion of 1 in y
2.397 * [taylor]: Taking taylor expansion of 0 in y
2.397 * [taylor]: Taking taylor expansion of 0 in y
2.397 * [taylor]: Taking taylor expansion of 0 in y
2.397 * * * [progress]: simplifying candidates
2.399 * [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)))
  (+ (neg (log (* x 2.0))) (- (log (- x y)) (log y)))
  (+ (neg (log (* x 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)))
  (+ (- 0 (log (* x 2.0))) (- (log (- x y)) (log y)))
  (+ (- 0 (log (* x 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) (log (* x 2.0))) (- (log (- x y)) (log y)))
  (+ (- (log 1) (log (* x 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 1) 1) (* (* (* x 2.0) (* x 2.0)) (* x 2.0))) (/ (* (* (- x y) (- x y)) (- x y)) (* (* y y) y)))
  (* (/ (* (* 1 1) 1) (* (* (* x 2.0) (* x 2.0)) (* x 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 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)))
  (* (/ 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) 2.0) (/ (- x y) y))
  (* (/ (sqrt 1) 2.0) (/ (- x y) y))
  (* (/ 1 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))
  (* 1 (/ (- 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)
2.403 * * [simplify]: iteration  0 :  164  enodes  (cost  1374 )
2.428 * * [simplify]: iteration  1 :  476  enodes  (cost  1254 )
2.545 * * [simplify]: iteration  2 :  1984  enodes  (cost  1054 )
2.942 * * [simplify]: iteration  done :  5000  enodes  (cost  1019 )
2.943 * [simplify]: Simplified to:
   (/ (/ (- 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))
  (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))
  (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))
  (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)
  (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))
  (- 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)))
  (/ (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))) (* x 2.0))
  (/ (sqrt (/ (- x y) y)) (* x 2.0))
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (* x 2.0)) (* (cbrt y) (cbrt y)))
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (* x 2.0)) (sqrt y))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* x 2.0))
  (/ (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))) (* x 2.0))
  (/ (/ (sqrt (- x y)) (* x 2.0)) (sqrt y))
  (/ (sqrt (- x y)) (* x 2.0))
  (/ (/ (/ 1 (* (cbrt y) (cbrt y))) x) 2.0)
  (/ (/ 1 x) (* (sqrt y) 2.0))
  (/ 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)) (* x 2.0))
  (/ (/ (/ 1 (* (cbrt y) (cbrt y))) x) 2.0)
  (/ (/ 1 x) (* (sqrt y) 2.0))
  (/ 1 (* x 2.0))
  (/ 1 (* x 2.0))
  (/ (- x y) (* x 2.0))
  (* (cbrt (/ 1 (* x 2.0))) (/ (- x y) y))
  (* (sqrt (/ 1 (* x 2.0))) (/ (- x y) y))
  (/ (/ (- x y) y) 2.0)
  (/ (/ (- x y) y) 2.0)
  (/ (/ (- x y) y) 2.0)
  (/ (/ (- x y) (* x 2.0)) y)
  (/ (/ (- x y) (* x 2.0)) y)
  (/ (- x y) (* x 2.0))
  (/ (- x y) y)
  (log (/ (- x y) y))
  (log (/ (- x y) y))
  (exp (/ (- x y) y))
  (pow (- (/ x y) 1) 3)
  (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y)))
  (cbrt (/ (- x y) y))
  (pow (- (/ x y) 1) 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 x) (sqrt y))
  (/ (- (sqrt x) (sqrt y)) y)
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (- x y) (cbrt y))
  (/ 1 (sqrt y))
  (/ (- x y) (sqrt y))
  1
  (/ (- x y) y)
  (/ 1 y)
  (/ y (- x y))
  (/ (- x y) (* (cbrt y) (cbrt y)))
  (/ (- x y) (sqrt y))
  (- x y)
  (/ y (cbrt (- x y)))
  (/ y (sqrt (- x y)))
  (/ y (- x y))
  (/ y (- (sqrt x) (sqrt y)))
  (/ y (- x y))
  (* y (+ (* x x) (* (+ x y) 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)
2.944 * * * [progress]: adding candidates to table
3.026 * * [progress]: iteration 4 / 4
3.026 * * * [progress]: picking best candidate
3.028 * * * * [pick]: Picked  #<alt (λ (x y) (/ (/ (- x y) y) (* x 2.0)))>
3.028 * * * [progress]: localizing error
3.034 * * * [progress]: generating rewritten candidates
3.034 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
3.044 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
3.055 * * * [progress]: generating series expansions
3.055 * * * * [progress]: [ 1 / 2 ] generating series at (2)
3.055 * [approximate]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in (x y) around 0
3.055 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in y
3.055 * [taylor]: Taking taylor expansion of 0.5 in y
3.055 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in y
3.055 * [taylor]: Taking taylor expansion of (- x y) in y
3.055 * [taylor]: Taking taylor expansion of x in y
3.055 * [taylor]: Taking taylor expansion of y in y
3.055 * [taylor]: Taking taylor expansion of (* x y) in y
3.055 * [taylor]: Taking taylor expansion of x in y
3.055 * [taylor]: Taking taylor expansion of y in y
3.055 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
3.055 * [taylor]: Taking taylor expansion of 0.5 in x
3.055 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
3.055 * [taylor]: Taking taylor expansion of (- x y) in x
3.055 * [taylor]: Taking taylor expansion of x in x
3.055 * [taylor]: Taking taylor expansion of y in x
3.055 * [taylor]: Taking taylor expansion of (* x y) in x
3.055 * [taylor]: Taking taylor expansion of x in x
3.055 * [taylor]: Taking taylor expansion of y in x
3.056 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
3.056 * [taylor]: Taking taylor expansion of 0.5 in x
3.056 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
3.056 * [taylor]: Taking taylor expansion of (- x y) in x
3.056 * [taylor]: Taking taylor expansion of x in x
3.056 * [taylor]: Taking taylor expansion of y in x
3.056 * [taylor]: Taking taylor expansion of (* x y) in x
3.056 * [taylor]: Taking taylor expansion of x in x
3.056 * [taylor]: Taking taylor expansion of y in x
3.056 * [taylor]: Taking taylor expansion of -0.5 in y
3.056 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
3.056 * [taylor]: Taking taylor expansion of 0.5 in y
3.056 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.056 * [taylor]: Taking taylor expansion of y in y
3.056 * [taylor]: Taking taylor expansion of 0 in y
3.057 * [taylor]: Taking taylor expansion of 0 in y
3.057 * [taylor]: Taking taylor expansion of 0 in y
3.057 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in (x y) around 0
3.057 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in y
3.057 * [taylor]: Taking taylor expansion of 0.5 in y
3.057 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in y
3.057 * [taylor]: Taking taylor expansion of x in y
3.057 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
3.057 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
3.057 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.057 * [taylor]: Taking taylor expansion of x in y
3.057 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.057 * [taylor]: Taking taylor expansion of y in y
3.057 * [taylor]: Taking taylor expansion of y in y
3.057 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
3.057 * [taylor]: Taking taylor expansion of 0.5 in x
3.058 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
3.058 * [taylor]: Taking taylor expansion of x in x
3.058 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
3.058 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
3.058 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.058 * [taylor]: Taking taylor expansion of x in x
3.058 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.058 * [taylor]: Taking taylor expansion of y in x
3.058 * [taylor]: Taking taylor expansion of y in x
3.058 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
3.058 * [taylor]: Taking taylor expansion of 0.5 in x
3.058 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
3.058 * [taylor]: Taking taylor expansion of x in x
3.058 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
3.058 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
3.058 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.058 * [taylor]: Taking taylor expansion of x in x
3.058 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.058 * [taylor]: Taking taylor expansion of y in x
3.058 * [taylor]: Taking taylor expansion of y in x
3.058 * [taylor]: Taking taylor expansion of 0 in y
3.058 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
3.058 * [taylor]: Taking taylor expansion of 0.5 in y
3.058 * [taylor]: Taking taylor expansion of y in y
3.059 * [taylor]: Taking taylor expansion of (neg 0.5) in y
3.059 * [taylor]: Taking taylor expansion of 0.5 in y
3.059 * [taylor]: Taking taylor expansion of 0 in y
3.059 * [taylor]: Taking taylor expansion of 0 in y
3.060 * [taylor]: Taking taylor expansion of 0 in y
3.060 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in (x y) around 0
3.060 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in y
3.060 * [taylor]: Taking taylor expansion of 0.5 in y
3.060 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in y
3.060 * [taylor]: Taking taylor expansion of x in y
3.060 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
3.060 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
3.060 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.060 * [taylor]: Taking taylor expansion of y in y
3.060 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.060 * [taylor]: Taking taylor expansion of x in y
3.060 * [taylor]: Taking taylor expansion of y in y
3.060 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
3.060 * [taylor]: Taking taylor expansion of 0.5 in x
3.060 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
3.060 * [taylor]: Taking taylor expansion of x in x
3.060 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
3.060 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
3.060 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.060 * [taylor]: Taking taylor expansion of y in x
3.060 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.061 * [taylor]: Taking taylor expansion of x in x
3.061 * [taylor]: Taking taylor expansion of y in x
3.061 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
3.061 * [taylor]: Taking taylor expansion of 0.5 in x
3.061 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
3.061 * [taylor]: Taking taylor expansion of x in x
3.061 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
3.061 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
3.061 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.061 * [taylor]: Taking taylor expansion of y in x
3.061 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.061 * [taylor]: Taking taylor expansion of x in x
3.061 * [taylor]: Taking taylor expansion of y in x
3.068 * [taylor]: Taking taylor expansion of 0 in y
3.069 * [taylor]: Taking taylor expansion of (neg (* 0.5 y)) in y
3.069 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
3.069 * [taylor]: Taking taylor expansion of 0.5 in y
3.069 * [taylor]: Taking taylor expansion of y in y
3.069 * [taylor]: Taking taylor expansion of 0.5 in y
3.069 * [taylor]: Taking taylor expansion of 0 in y
3.070 * [taylor]: Taking taylor expansion of 0 in y
3.070 * [taylor]: Taking taylor expansion of 0 in y
3.070 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
3.070 * [approximate]: Taking taylor expansion of (/ (- x y) y) in (x y) around 0
3.071 * [taylor]: Taking taylor expansion of (/ (- x y) y) in y
3.071 * [taylor]: Taking taylor expansion of (- x y) in y
3.071 * [taylor]: Taking taylor expansion of x in y
3.071 * [taylor]: Taking taylor expansion of y in y
3.071 * [taylor]: Taking taylor expansion of y in y
3.071 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
3.071 * [taylor]: Taking taylor expansion of (- x y) in x
3.071 * [taylor]: Taking taylor expansion of x in x
3.071 * [taylor]: Taking taylor expansion of y in x
3.071 * [taylor]: Taking taylor expansion of y in x
3.071 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
3.071 * [taylor]: Taking taylor expansion of (- x y) in x
3.071 * [taylor]: Taking taylor expansion of x in x
3.071 * [taylor]: Taking taylor expansion of y in x
3.071 * [taylor]: Taking taylor expansion of y in x
3.071 * [taylor]: Taking taylor expansion of -1 in y
3.071 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.071 * [taylor]: Taking taylor expansion of y in y
3.071 * [taylor]: Taking taylor expansion of 0 in y
3.071 * [taylor]: Taking taylor expansion of 0 in y
3.072 * [taylor]: Taking taylor expansion of 0 in y
3.072 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in (x y) around 0
3.072 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
3.072 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
3.072 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.072 * [taylor]: Taking taylor expansion of x in y
3.072 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.072 * [taylor]: Taking taylor expansion of y in y
3.072 * [taylor]: Taking taylor expansion of y in y
3.072 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
3.072 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
3.072 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.072 * [taylor]: Taking taylor expansion of x in x
3.072 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.072 * [taylor]: Taking taylor expansion of y in x
3.072 * [taylor]: Taking taylor expansion of y in x
3.072 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
3.072 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
3.072 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.072 * [taylor]: Taking taylor expansion of x in x
3.072 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.072 * [taylor]: Taking taylor expansion of y in x
3.072 * [taylor]: Taking taylor expansion of y in x
3.072 * [taylor]: Taking taylor expansion of y in y
3.072 * [taylor]: Taking taylor expansion of (neg 1) in y
3.072 * [taylor]: Taking taylor expansion of 1 in y
3.073 * [taylor]: Taking taylor expansion of 0 in y
3.073 * [taylor]: Taking taylor expansion of 0 in y
3.073 * [taylor]: Taking taylor expansion of 0 in y
3.073 * [approximate]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in (x y) around 0
3.073 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in y
3.073 * [taylor]: Taking taylor expansion of -1 in y
3.073 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
3.073 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
3.074 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.074 * [taylor]: Taking taylor expansion of y in y
3.074 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.074 * [taylor]: Taking taylor expansion of x in y
3.074 * [taylor]: Taking taylor expansion of y in y
3.074 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in x
3.074 * [taylor]: Taking taylor expansion of -1 in x
3.074 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
3.074 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
3.074 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.074 * [taylor]: Taking taylor expansion of y in x
3.074 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.074 * [taylor]: Taking taylor expansion of x in x
3.074 * [taylor]: Taking taylor expansion of y in x
3.074 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in x
3.074 * [taylor]: Taking taylor expansion of -1 in x
3.074 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
3.074 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
3.074 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.074 * [taylor]: Taking taylor expansion of y in x
3.074 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.074 * [taylor]: Taking taylor expansion of x in x
3.074 * [taylor]: Taking taylor expansion of y in x
3.074 * [taylor]: Taking taylor expansion of y in y
3.074 * [taylor]: Taking taylor expansion of (neg 1) in y
3.074 * [taylor]: Taking taylor expansion of 1 in y
3.074 * [taylor]: Taking taylor expansion of 0 in y
3.075 * [taylor]: Taking taylor expansion of 0 in y
3.075 * [taylor]: Taking taylor expansion of 0 in y
3.075 * * * [progress]: simplifying candidates
3.077 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (- (log (- x y)) (log y)) (+ (log x) (log 2.0)))
  (- (- (log (- x y)) (log y)) (log (* x 2.0)))
  (- (log (/ (- x y) y)) (+ (log x) (log 2.0)))
  (- (log (/ (- x y) y)) (log (* x 2.0)))
  (log (/ (/ (- x y) y) (* x 2.0)))
  (exp (/ (/ (- x y) y) (* x 2.0)))
  (/ (/ (* (* (- x y) (- x y)) (- x y)) (* (* y y) y)) (* (* (* x x) x) (* (* 2.0 2.0) 2.0)))
  (/ (/ (* (* (- x y) (- x y)) (- x y)) (* (* y y) y)) (* (* (* x 2.0) (* x 2.0)) (* x 2.0)))
  (/ (* (* (/ (- x y) y) (/ (- x y) y)) (/ (- x 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)))
  (* (cbrt (/ (/ (- x y) y) (* x 2.0))) (cbrt (/ (/ (- x y) y) (* x 2.0))))
  (cbrt (/ (/ (- x y) y) (* x 2.0)))
  (* (* (/ (/ (- x y) y) (* x 2.0)) (/ (/ (- x y) y) (* x 2.0))) (/ (/ (- x y) y) (* x 2.0)))
  (sqrt (/ (/ (- x y) y) (* x 2.0)))
  (sqrt (/ (/ (- x y) y) (* x 2.0)))
  (neg (/ (- x y) y))
  (neg (* x 2.0))
  (/ (/ x y) (* x 2.0))
  (/ (/ y y) (* x 2.0))
  (/ (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))) x)
  (/ (cbrt (/ (- x y) y)) 2.0)
  (/ (sqrt (/ (- x y) y)) x)
  (/ (sqrt (/ (- x y) y)) 2.0)
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))) x)
  (/ (/ (cbrt (- x y)) (cbrt y)) 2.0)
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)) x)
  (/ (/ (cbrt (- x y)) (sqrt y)) 2.0)
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) 1) x)
  (/ (/ (cbrt (- x y)) y) 2.0)
  (/ (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))) x)
  (/ (/ (sqrt (- x y)) (cbrt y)) 2.0)
  (/ (/ (sqrt (- x y)) (sqrt y)) x)
  (/ (/ (sqrt (- x y)) (sqrt y)) 2.0)
  (/ (/ (sqrt (- x y)) 1) x)
  (/ (/ (sqrt (- x y)) y) 2.0)
  (/ (/ 1 (* (cbrt y) (cbrt y))) x)
  (/ (/ (- x y) (cbrt y)) 2.0)
  (/ (/ 1 (sqrt y)) x)
  (/ (/ (- x y) (sqrt y)) 2.0)
  (/ (/ 1 1) x)
  (/ (/ (- x y) y) 2.0)
  (/ (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))) x)
  (/ (/ (- (sqrt x) (sqrt y)) (cbrt y)) 2.0)
  (/ (/ (+ (sqrt x) (sqrt y)) (sqrt y)) x)
  (/ (/ (- (sqrt x) (sqrt y)) (sqrt y)) 2.0)
  (/ (/ (+ (sqrt x) (sqrt y)) 1) x)
  (/ (/ (- (sqrt x) (sqrt y)) y) 2.0)
  (/ (/ 1 (* (cbrt y) (cbrt y))) x)
  (/ (/ (- x y) (cbrt y)) 2.0)
  (/ (/ 1 (sqrt y)) x)
  (/ (/ (- x y) (sqrt y)) 2.0)
  (/ (/ 1 1) x)
  (/ (/ (- x y) y) 2.0)
  (/ 1 x)
  (/ (/ (- x y) y) 2.0)
  (/ (- x y) x)
  (/ (/ 1 y) 2.0)
  (/ 1 (* x 2.0))
  (/ (* x 2.0) (/ (- x y) y))
  (/ (/ (- x y) y) x)
  (/ (* x 2.0) (cbrt (/ (- x y) y)))
  (/ (* x 2.0) (sqrt (/ (- x y) y)))
  (/ (* x 2.0) (/ (cbrt (- x y)) (cbrt y)))
  (/ (* x 2.0) (/ (cbrt (- x y)) (sqrt y)))
  (/ (* x 2.0) (/ (cbrt (- x y)) y))
  (/ (* x 2.0) (/ (sqrt (- x y)) (cbrt y)))
  (/ (* x 2.0) (/ (sqrt (- x y)) (sqrt y)))
  (/ (* x 2.0) (/ (sqrt (- x y)) y))
  (/ (* x 2.0) (/ (- x y) (cbrt y)))
  (/ (* x 2.0) (/ (- x y) (sqrt y)))
  (/ (* x 2.0) (/ (- x y) y))
  (/ (* x 2.0) (/ (- (sqrt x) (sqrt y)) (cbrt y)))
  (/ (* x 2.0) (/ (- (sqrt x) (sqrt y)) (sqrt y)))
  (/ (* x 2.0) (/ (- (sqrt x) (sqrt y)) y))
  (/ (* x 2.0) (/ (- x y) (cbrt y)))
  (/ (* x 2.0) (/ (- x y) (sqrt y)))
  (/ (* x 2.0) (/ (- x y) y))
  (/ (* x 2.0) (/ (- x y) y))
  (/ (* x 2.0) (/ 1 y))
  (* (* x 2.0) 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)
3.081 * * [simplify]: iteration  0 :  155  enodes  (cost  1269 )
3.104 * * [simplify]: iteration  1 :  386  enodes  (cost  1229 )
3.175 * * [simplify]: iteration  2 :  1287  enodes  (cost  1117 )
3.662 * * [simplify]: iteration  done :  5000  enodes  (cost  1103 )
3.663 * [simplify]: Simplified to:
   (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)
  (* (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)))
  (neg (/ (- x y) y))
  (neg (* x 2.0))
  (/ (/ 1 y) 2.0)
  (/ (/ 1 x) 2.0)
  (/ (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y))) x)
  (/ (cbrt (/ (- x y) y)) 2.0)
  (/ (sqrt (/ (- x y) y)) x)
  (/ (sqrt (/ (- x y) y)) 2.0)
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt y) (cbrt y))) x)
  (/ (/ (cbrt (- x y)) (cbrt y)) 2.0)
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt y)) x)
  (/ (/ (cbrt (- x y)) (sqrt y)) 2.0)
  (/ (* (cbrt (- x y)) (cbrt (- x y))) x)
  (/ (/ (cbrt (- x y)) y) 2.0)
  (/ (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))) x)
  (/ (/ (sqrt (- x y)) (cbrt y)) 2.0)
  (/ (/ (sqrt (- x y)) (sqrt y)) x)
  (/ (/ (sqrt (- x y)) (sqrt y)) 2.0)
  (/ (sqrt (- x y)) x)
  (/ (/ (sqrt (- x y)) y) 2.0)
  (/ (/ 1 (* (cbrt y) (cbrt y))) x)
  (/ (/ (- x y) (cbrt y)) 2.0)
  (/ (/ 1 (sqrt y)) x)
  (/ (/ (- x y) (sqrt y)) 2.0)
  (/ 1 x)
  (/ (/ (- x y) y) 2.0)
  (/ (/ (+ (sqrt x) (sqrt y)) (* (cbrt y) (cbrt y))) x)
  (/ (/ (- (sqrt x) (sqrt y)) (cbrt y)) 2.0)
  (/ (/ (+ (sqrt x) (sqrt y)) (sqrt y)) x)
  (/ (+ (/ (sqrt x) (sqrt y)) -1) 2.0)
  (/ (+ (sqrt x) (sqrt y)) x)
  (/ (/ (- (sqrt x) (sqrt y)) y) 2.0)
  (/ (/ 1 (* (cbrt y) (cbrt y))) x)
  (/ (/ (- x y) (cbrt y)) 2.0)
  (/ (/ 1 (sqrt y)) x)
  (/ (/ (- x y) (sqrt y)) 2.0)
  (/ 1 x)
  (/ (/ (- x y) y) 2.0)
  (/ 1 x)
  (/ (/ (- x y) y) 2.0)
  (/ (- x y) x)
  (/ (/ 1 y) 2.0)
  (/ (/ 1 x) 2.0)
  (/ (* x 2.0) (/ (- x y) y))
  (/ (- (/ x y) 1) x)
  (/ (* x 2.0) (cbrt (/ (- x y) y)))
  (/ (* x 2.0) (sqrt (/ (- x y) y)))
  (/ (* x 2.0) (/ (cbrt (- x y)) (cbrt y)))
  (/ (* x 2.0) (/ (cbrt (- x y)) (sqrt y)))
  (/ (* x 2.0) (/ (cbrt (- x y)) y))
  (/ (* x 2.0) (/ (sqrt (- x y)) (cbrt y)))
  (/ (* x 2.0) (/ (sqrt (- x y)) (sqrt y)))
  (/ (* x 2.0) (/ (sqrt (- x y)) y))
  (/ (* x 2.0) (/ (- x y) (cbrt y)))
  (/ (* x 2.0) (/ (- x y) (sqrt y)))
  (/ (* x 2.0) (/ (- x y) y))
  (/ (* x 2.0) (/ (- (sqrt x) (sqrt y)) (cbrt y)))
  (/ (* x 2.0) (+ (/ (sqrt x) (sqrt y)) -1))
  (/ (* x 2.0) (/ (- (sqrt x) (sqrt y)) y))
  (/ (* x 2.0) (/ (- x y) (cbrt y)))
  (/ (* x 2.0) (/ (- x y) (sqrt y)))
  (/ (* x 2.0) (/ (- x y) y))
  (/ (* x 2.0) (/ (- x y) y))
  (* (* x 2.0) y)
  (* (* x 2.0) y)
  (log (/ (- x y) y))
  (log (/ (- x y) y))
  (exp (/ (- x y) y))
  (pow (- (/ x y) 1) 3)
  (* (cbrt (/ (- x y) y)) (cbrt (/ (- x y) y)))
  (cbrt (/ (- x y) y))
  (pow (- (/ x y) 1) 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 x) (sqrt y))
  (/ (- (sqrt x) (sqrt y)) y)
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (- x y) (cbrt y))
  (/ 1 (sqrt y))
  (/ (- x y) (sqrt y))
  1
  (/ (- x y) y)
  (/ 1 y)
  (/ y (- x y))
  (/ (- x y) (* (cbrt y) (cbrt y)))
  (/ (- x y) (sqrt y))
  (- x y)
  (/ y (cbrt (- x y)))
  (/ y (sqrt (- x y)))
  (/ y (- x y))
  (/ y (- (sqrt x) (sqrt y)))
  (/ y (- x y))
  (* (+ (* y (+ x 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)
3.664 * * * [progress]: adding candidates to table
3.753 * [progress]: [Phase 3 of 3] Extracting.
3.753 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (/ (/ (- x y) y) (* x 2.0)))> #<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))>)
3.753 * * * [regime-changes]: Trying 2 branch expressions: (y x)
3.754 * * * * [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)))>)
3.785 * * * * [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)))>)
3.818 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
3.818 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (/ 0.5 y) (/ 0.5 x))
3.818 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
3.818 * * [simplify]: iteration  done :  6  enodes  (cost  7 )
3.818 * [simplify]: Simplified to:
   (- (/ 0.5 y) (/ 0.5 x))
4.575 * [regime-testing]: End program error score: 0.013501687710963871
4.644 * [regime-testing]: Target error score: 0.013501687710963871