29.370 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.107 * * * [progress]: [2/2] Setting up program.
0.110 * [progress]: [Phase 2 of 3] Improving.
0.110 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (- x y) (* (* x 2.0) y))
0.170 * * [simplify]: iteration  0 :  4878  enodes  (cost  9 )
0.171 * * [simplify]: iteration  1 :  4878  enodes  (cost  9 )
0.171 * [simplify]: Simplified to:
   (/ (- x y) (* x (* y 2.0)))
0.174 * * [progress]: iteration 1 / 4
0.174 * * * [progress]: picking best candidate
0.176 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- x y) (* (* x 2.0) y)))>
0.176 * * * [progress]: localizing error
0.181 * * * [progress]: generating rewritten candidates
0.181 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.190 * * * [progress]: generating series expansions
0.190 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.190 * [approximate]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in (x y) around 0
0.190 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in y
0.190 * [taylor]: Taking taylor expansion of 0.5 in y
0.190 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in y
0.190 * [taylor]: Taking taylor expansion of (- x y) in y
0.190 * [taylor]: Taking taylor expansion of x in y
0.190 * [taylor]: Taking taylor expansion of y in y
0.190 * [taylor]: Taking taylor expansion of (* x y) in y
0.190 * [taylor]: Taking taylor expansion of x in y
0.190 * [taylor]: Taking taylor expansion of y in y
0.190 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
0.190 * [taylor]: Taking taylor expansion of 0.5 in x
0.190 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
0.190 * [taylor]: Taking taylor expansion of (- x y) in x
0.190 * [taylor]: Taking taylor expansion of x in x
0.190 * [taylor]: Taking taylor expansion of y in x
0.190 * [taylor]: Taking taylor expansion of (* x y) in x
0.190 * [taylor]: Taking taylor expansion of x in x
0.191 * [taylor]: Taking taylor expansion of y in x
0.191 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
0.191 * [taylor]: Taking taylor expansion of 0.5 in x
0.191 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
0.191 * [taylor]: Taking taylor expansion of (- x y) in x
0.191 * [taylor]: Taking taylor expansion of x in x
0.191 * [taylor]: Taking taylor expansion of y in x
0.191 * [taylor]: Taking taylor expansion of (* x y) in x
0.191 * [taylor]: Taking taylor expansion of x in x
0.191 * [taylor]: Taking taylor expansion of y in x
0.191 * [taylor]: Taking taylor expansion of -0.5 in y
0.191 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.191 * [taylor]: Taking taylor expansion of 0.5 in y
0.191 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.191 * [taylor]: Taking taylor expansion of y in y
0.191 * [taylor]: Taking taylor expansion of 0 in y
0.192 * [taylor]: Taking taylor expansion of 0 in y
0.192 * [taylor]: Taking taylor expansion of 0 in y
0.192 * [approximate]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) (* x y))) in (x y) around 0
0.192 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) (* x y))) in y
0.192 * [taylor]: Taking taylor expansion of 0.5 in y
0.192 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in y
0.192 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.192 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.192 * [taylor]: Taking taylor expansion of x in y
0.192 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.192 * [taylor]: Taking taylor expansion of y in y
0.192 * [taylor]: Taking taylor expansion of (* x y) in y
0.192 * [taylor]: Taking taylor expansion of x in y
0.192 * [taylor]: Taking taylor expansion of y in y
0.192 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.192 * [taylor]: Taking taylor expansion of 0.5 in x
0.192 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.192 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.192 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.192 * [taylor]: Taking taylor expansion of x in x
0.192 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.192 * [taylor]: Taking taylor expansion of y in x
0.193 * [taylor]: Taking taylor expansion of (* x y) in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of y in x
0.193 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.193 * [taylor]: Taking taylor expansion of 0.5 in x
0.193 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.193 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.193 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.193 * [taylor]: Taking taylor expansion of y in x
0.193 * [taylor]: Taking taylor expansion of (* x y) in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of y in x
0.193 * [taylor]: Taking taylor expansion of 0 in y
0.193 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.193 * [taylor]: Taking taylor expansion of 0.5 in y
0.193 * [taylor]: Taking taylor expansion of y in y
0.193 * [taylor]: Taking taylor expansion of (neg 0.5) in y
0.193 * [taylor]: Taking taylor expansion of 0.5 in y
0.194 * [taylor]: Taking taylor expansion of 0 in y
0.194 * [taylor]: Taking taylor expansion of 0 in y
0.194 * [taylor]: Taking taylor expansion of 0 in y
0.195 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* y (- (/ 1 y) (/ 1 x))))) in (x y) around 0
0.195 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* y (- (/ 1 y) (/ 1 x))))) in y
0.195 * [taylor]: Taking taylor expansion of 0.5 in y
0.195 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in y
0.195 * [taylor]: Taking taylor expansion of x in y
0.195 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
0.195 * [taylor]: Taking taylor expansion of y in y
0.195 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.195 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.195 * [taylor]: Taking taylor expansion of y in y
0.195 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.195 * [taylor]: Taking taylor expansion of x in y
0.195 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.195 * [taylor]: Taking taylor expansion of 0.5 in x
0.195 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.195 * [taylor]: Taking taylor expansion of x in x
0.195 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.195 * [taylor]: Taking taylor expansion of y in x
0.195 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.195 * [taylor]: Taking taylor expansion of y in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.195 * [taylor]: Taking taylor expansion of x in x
0.195 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.195 * [taylor]: Taking taylor expansion of 0.5 in x
0.195 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.195 * [taylor]: Taking taylor expansion of x in x
0.195 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.195 * [taylor]: Taking taylor expansion of y in x
0.195 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.195 * [taylor]: Taking taylor expansion of y in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.195 * [taylor]: Taking taylor expansion of x in x
0.195 * [taylor]: Taking taylor expansion of 0 in y
0.196 * [taylor]: Taking taylor expansion of (neg (* 0.5 y)) in y
0.196 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.196 * [taylor]: Taking taylor expansion of 0.5 in y
0.196 * [taylor]: Taking taylor expansion of y in y
0.196 * [taylor]: Taking taylor expansion of 0.5 in y
0.196 * [taylor]: Taking taylor expansion of 0 in y
0.196 * [taylor]: Taking taylor expansion of 0 in y
0.197 * [taylor]: Taking taylor expansion of 0 in y
0.197 * * * [progress]: simplifying candidates
0.198 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (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)))
0.226 * * [simplify]: iteration  0 :  6066  enodes  (cost  350 )
0.228 * [simplify]: Simplified to:
   (log (/ (- x y) (* x (* y 2.0))))
  (log (/ (- x y) (* x (* y 2.0))))
  (log (/ (- x y) (* x (* y 2.0))))
  (log (/ (- x y) (* x (* y 2.0))))
  (exp (/ (- x y) (* x (* y 2.0))))
  (pow (/ (- x y) (* x (* y 2.0))) 3)
  (pow (/ (- x y) (* x (* y 2.0))) 3)
  (pow (/ (- x y) (* x (* y 2.0))) 3)
  (* (cbrt (/ (- x y) (* x (* y 2.0)))) (cbrt (/ (- x y) (* x (* y 2.0)))))
  (cbrt (/ (- x y) (* x (* y 2.0))))
  (pow (/ (- x y) (* x (* y 2.0))) 3)
  (sqrt (/ (- x y) (* x (* y 2.0))))
  (sqrt (/ (- x y) (* x (* y 2.0))))
  (- y x)
  (* x (* y (neg 2.0)))
  (/ 1 (* y 2.0))
  (/ 1 (* x 2.0))
  (* (/ (cbrt (- x y)) x) (/ (cbrt (- x y)) 2.0))
  (/ (cbrt (- x y)) y)
  (/ (sqrt (- x y)) (* x 2.0))
  (/ (sqrt (- x y)) y)
  (/ 1 (* x 2.0))
  (+ (/ x y) -1)
  (/ (+ (sqrt x) (sqrt y)) (* x 2.0))
  (/ (- (sqrt x) (sqrt y)) y)
  (/ 1 (* x 2.0))
  (+ (/ x y) -1)
  (/ (/ 1 (* y 2.0)) x)
  (* (/ x (/ (- x y) 2.0)) y)
  (/ (- x y) (* x 2.0))
  (* (* (/ x (cbrt (- x y))) 2.0) y)
  (* (/ x (/ (sqrt (- x y)) 2.0)) y)
  (* (/ x (/ (- x y) 2.0)) y)
  (* (/ x (/ (- (sqrt x) (sqrt y)) 2.0)) y)
  (* (/ x (/ (- x y) 2.0)) y)
  (* x (* y (* 2.0 (+ (* x x) (* y (+ x y))))))
  (* x (* y (* 2.0 (+ x y))))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
0.228 * * * [progress]: adding candidates to table
0.263 * * [progress]: iteration 2 / 4
0.263 * * * [progress]: picking best candidate
0.268 * * * * [pick]: Picked  #<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))>
0.268 * * * [progress]: localizing error
0.272 * * * [progress]: generating rewritten candidates
0.272 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.287 * * * [progress]: generating series expansions
0.287 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.287 * [approximate]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in (y x) around 0
0.287 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.287 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.287 * [taylor]: Taking taylor expansion of 0.5 in x
0.287 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.287 * [taylor]: Taking taylor expansion of y in x
0.287 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.287 * [taylor]: Taking taylor expansion of 0.5 in x
0.287 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.287 * [taylor]: Taking taylor expansion of x in x
0.287 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
0.287 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.288 * [taylor]: Taking taylor expansion of 0.5 in y
0.288 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.288 * [taylor]: Taking taylor expansion of y in y
0.288 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
0.288 * [taylor]: Taking taylor expansion of 0.5 in y
0.288 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.288 * [taylor]: Taking taylor expansion of x in y
0.288 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
0.288 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.288 * [taylor]: Taking taylor expansion of 0.5 in y
0.288 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.288 * [taylor]: Taking taylor expansion of y in y
0.288 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
0.288 * [taylor]: Taking taylor expansion of 0.5 in y
0.288 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.288 * [taylor]: Taking taylor expansion of x in y
0.288 * [taylor]: Taking taylor expansion of 0.5 in x
0.288 * [taylor]: Taking taylor expansion of (neg (* 0.5 (/ 1 x))) in x
0.288 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.288 * [taylor]: Taking taylor expansion of 0.5 in x
0.288 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.288 * [taylor]: Taking taylor expansion of x in x
0.288 * [taylor]: Taking taylor expansion of 0 in x
0.289 * [taylor]: Taking taylor expansion of 0 in x
0.289 * [taylor]: Taking taylor expansion of 0 in x
0.289 * [approximate]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in (y x) around 0
0.289 * [taylor]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in x
0.289 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
0.289 * [taylor]: Taking taylor expansion of 0.5 in x
0.289 * [taylor]: Taking taylor expansion of y in x
0.289 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.289 * [taylor]: Taking taylor expansion of 0.5 in x
0.289 * [taylor]: Taking taylor expansion of x in x
0.289 * [taylor]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in y
0.289 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.289 * [taylor]: Taking taylor expansion of 0.5 in y
0.289 * [taylor]: Taking taylor expansion of y in y
0.289 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
0.289 * [taylor]: Taking taylor expansion of 0.5 in y
0.289 * [taylor]: Taking taylor expansion of x in y
0.289 * [taylor]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in y
0.289 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.289 * [taylor]: Taking taylor expansion of 0.5 in y
0.289 * [taylor]: Taking taylor expansion of y in y
0.289 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
0.290 * [taylor]: Taking taylor expansion of 0.5 in y
0.290 * [taylor]: Taking taylor expansion of x in y
0.290 * [taylor]: Taking taylor expansion of (neg (* 0.5 x)) in x
0.290 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.290 * [taylor]: Taking taylor expansion of 0.5 in x
0.290 * [taylor]: Taking taylor expansion of x in x
0.290 * [taylor]: Taking taylor expansion of 0.5 in x
0.290 * [taylor]: Taking taylor expansion of 0 in x
0.290 * [taylor]: Taking taylor expansion of 0 in x
0.290 * [approximate]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in (y x) around 0
0.290 * [taylor]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in x
0.290 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.290 * [taylor]: Taking taylor expansion of 0.5 in x
0.290 * [taylor]: Taking taylor expansion of x in x
0.290 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
0.291 * [taylor]: Taking taylor expansion of 0.5 in x
0.291 * [taylor]: Taking taylor expansion of y in x
0.291 * [taylor]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in y
0.291 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
0.291 * [taylor]: Taking taylor expansion of 0.5 in y
0.291 * [taylor]: Taking taylor expansion of x in y
0.291 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.291 * [taylor]: Taking taylor expansion of 0.5 in y
0.291 * [taylor]: Taking taylor expansion of y in y
0.291 * [taylor]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in y
0.291 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
0.291 * [taylor]: Taking taylor expansion of 0.5 in y
0.291 * [taylor]: Taking taylor expansion of x in y
0.291 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.291 * [taylor]: Taking taylor expansion of 0.5 in y
0.291 * [taylor]: Taking taylor expansion of y in y
0.291 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.291 * [taylor]: Taking taylor expansion of 0.5 in x
0.291 * [taylor]: Taking taylor expansion of x in x
0.291 * [taylor]: Taking taylor expansion of (neg 0.5) in x
0.291 * [taylor]: Taking taylor expansion of 0.5 in x
0.291 * [taylor]: Taking taylor expansion of 0 in x
0.291 * [taylor]: Taking taylor expansion of 0 in x
0.291 * * * [progress]: simplifying candidates
0.292 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (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))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
0.328 * * [simplify]: iteration  0 :  4896  enodes  (cost  274 )
0.328 * * [simplify]: iteration  1 :  4896  enodes  (cost  274 )
0.330 * [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 (* y y)) (/ (+ (/ 0.5 y) (/ 0.5 x)) 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 x)) (/ (sqrt 0.5) (sqrt y)))
  (- (/ (sqrt 0.5) (sqrt y)) (sqrt (/ 0.5 x)))
  (+ (/ (sqrt 0.5) (sqrt x)) (/ (sqrt 0.5) (sqrt y)))
  (- (/ (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))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
0.330 * * * [progress]: adding candidates to table
0.360 * * [progress]: iteration 3 / 4
0.360 * * * [progress]: picking best candidate
0.362 * * * * [pick]: Picked  #<alt (λ (x y) (/ (/ (- x y) (* x 2.0)) y))>
0.362 * * * [progress]: localizing error
0.368 * * * [progress]: generating rewritten candidates
0.368 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.376 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
0.386 * * * [progress]: generating series expansions
0.386 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.386 * [approximate]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in (x y) around 0
0.386 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in y
0.386 * [taylor]: Taking taylor expansion of 0.5 in y
0.386 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in y
0.386 * [taylor]: Taking taylor expansion of (- x y) in y
0.386 * [taylor]: Taking taylor expansion of x in y
0.386 * [taylor]: Taking taylor expansion of y in y
0.386 * [taylor]: Taking taylor expansion of (* x y) in y
0.386 * [taylor]: Taking taylor expansion of x in y
0.386 * [taylor]: Taking taylor expansion of y in y
0.387 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
0.387 * [taylor]: Taking taylor expansion of 0.5 in x
0.387 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
0.387 * [taylor]: Taking taylor expansion of (- x y) in x
0.387 * [taylor]: Taking taylor expansion of x in x
0.387 * [taylor]: Taking taylor expansion of y in x
0.387 * [taylor]: Taking taylor expansion of (* x y) in x
0.387 * [taylor]: Taking taylor expansion of x in x
0.387 * [taylor]: Taking taylor expansion of y in x
0.387 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
0.387 * [taylor]: Taking taylor expansion of 0.5 in x
0.387 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
0.387 * [taylor]: Taking taylor expansion of (- x y) in x
0.387 * [taylor]: Taking taylor expansion of x in x
0.387 * [taylor]: Taking taylor expansion of y in x
0.387 * [taylor]: Taking taylor expansion of (* x y) in x
0.387 * [taylor]: Taking taylor expansion of x in x
0.387 * [taylor]: Taking taylor expansion of y in x
0.387 * [taylor]: Taking taylor expansion of -0.5 in y
0.387 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.387 * [taylor]: Taking taylor expansion of 0.5 in y
0.387 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.387 * [taylor]: Taking taylor expansion of y in y
0.388 * [taylor]: Taking taylor expansion of 0 in y
0.388 * [taylor]: Taking taylor expansion of 0 in y
0.388 * [taylor]: Taking taylor expansion of 0 in y
0.388 * [approximate]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) (* x y))) in (x y) around 0
0.388 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) (* x y))) in y
0.389 * [taylor]: Taking taylor expansion of 0.5 in y
0.389 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in y
0.389 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.389 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.389 * [taylor]: Taking taylor expansion of x in y
0.389 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.389 * [taylor]: Taking taylor expansion of y in y
0.389 * [taylor]: Taking taylor expansion of (* x y) in y
0.389 * [taylor]: Taking taylor expansion of x in y
0.389 * [taylor]: Taking taylor expansion of y in y
0.389 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.389 * [taylor]: Taking taylor expansion of 0.5 in x
0.389 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.389 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.389 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.389 * [taylor]: Taking taylor expansion of x in x
0.389 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.389 * [taylor]: Taking taylor expansion of y in x
0.389 * [taylor]: Taking taylor expansion of (* x y) in x
0.389 * [taylor]: Taking taylor expansion of x in x
0.389 * [taylor]: Taking taylor expansion of y in x
0.389 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.389 * [taylor]: Taking taylor expansion of 0.5 in x
0.389 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.389 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.389 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.389 * [taylor]: Taking taylor expansion of x in x
0.389 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.389 * [taylor]: Taking taylor expansion of y in x
0.389 * [taylor]: Taking taylor expansion of (* x y) in x
0.389 * [taylor]: Taking taylor expansion of x in x
0.389 * [taylor]: Taking taylor expansion of y in x
0.389 * [taylor]: Taking taylor expansion of 0 in y
0.389 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.389 * [taylor]: Taking taylor expansion of 0.5 in y
0.389 * [taylor]: Taking taylor expansion of y in y
0.390 * [taylor]: Taking taylor expansion of (neg 0.5) in y
0.390 * [taylor]: Taking taylor expansion of 0.5 in y
0.390 * [taylor]: Taking taylor expansion of 0 in y
0.393 * [taylor]: Taking taylor expansion of 0 in y
0.394 * [taylor]: Taking taylor expansion of 0 in y
0.394 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* y (- (/ 1 y) (/ 1 x))))) in (x y) around 0
0.394 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* y (- (/ 1 y) (/ 1 x))))) in y
0.394 * [taylor]: Taking taylor expansion of 0.5 in y
0.394 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in y
0.394 * [taylor]: Taking taylor expansion of x in y
0.394 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
0.394 * [taylor]: Taking taylor expansion of y in y
0.394 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.394 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.394 * [taylor]: Taking taylor expansion of y in y
0.394 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.394 * [taylor]: Taking taylor expansion of x in y
0.394 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.394 * [taylor]: Taking taylor expansion of 0.5 in x
0.394 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.394 * [taylor]: Taking taylor expansion of x in x
0.394 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.394 * [taylor]: Taking taylor expansion of y in x
0.394 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.394 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.394 * [taylor]: Taking taylor expansion of y in x
0.394 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.394 * [taylor]: Taking taylor expansion of x in x
0.394 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.394 * [taylor]: Taking taylor expansion of 0.5 in x
0.394 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.394 * [taylor]: Taking taylor expansion of x in x
0.394 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.394 * [taylor]: Taking taylor expansion of y in x
0.394 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.394 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.394 * [taylor]: Taking taylor expansion of y in x
0.394 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.394 * [taylor]: Taking taylor expansion of x in x
0.395 * [taylor]: Taking taylor expansion of 0 in y
0.395 * [taylor]: Taking taylor expansion of (neg (* 0.5 y)) in y
0.395 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.395 * [taylor]: Taking taylor expansion of 0.5 in y
0.395 * [taylor]: Taking taylor expansion of y in y
0.395 * [taylor]: Taking taylor expansion of 0.5 in y
0.395 * [taylor]: Taking taylor expansion of 0 in y
0.396 * [taylor]: Taking taylor expansion of 0 in y
0.396 * [taylor]: Taking taylor expansion of 0 in y
0.397 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
0.397 * [approximate]: Taking taylor expansion of (* 0.5 (/ (- x y) x)) in (x y) around 0
0.397 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) x)) in y
0.397 * [taylor]: Taking taylor expansion of 0.5 in y
0.397 * [taylor]: Taking taylor expansion of (/ (- x y) x) in y
0.397 * [taylor]: Taking taylor expansion of (- x y) in y
0.397 * [taylor]: Taking taylor expansion of x in y
0.397 * [taylor]: Taking taylor expansion of y in y
0.397 * [taylor]: Taking taylor expansion of x in y
0.397 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) x)) in x
0.397 * [taylor]: Taking taylor expansion of 0.5 in x
0.397 * [taylor]: Taking taylor expansion of (/ (- x y) x) in x
0.397 * [taylor]: Taking taylor expansion of (- x y) in x
0.397 * [taylor]: Taking taylor expansion of x in x
0.397 * [taylor]: Taking taylor expansion of y in x
0.397 * [taylor]: Taking taylor expansion of x in x
0.397 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) x)) in x
0.397 * [taylor]: Taking taylor expansion of 0.5 in x
0.397 * [taylor]: Taking taylor expansion of (/ (- x y) x) in x
0.397 * [taylor]: Taking taylor expansion of (- x y) in x
0.397 * [taylor]: Taking taylor expansion of x in x
0.397 * [taylor]: Taking taylor expansion of y in x
0.397 * [taylor]: Taking taylor expansion of x in x
0.397 * [taylor]: Taking taylor expansion of (* -0.5 y) in y
0.397 * [taylor]: Taking taylor expansion of -0.5 in y
0.397 * [taylor]: Taking taylor expansion of y in y
0.398 * [taylor]: Taking taylor expansion of 0.5 in y
0.398 * [taylor]: Taking taylor expansion of 0 in y
0.398 * [taylor]: Taking taylor expansion of 0 in y
0.398 * [approximate]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) x)) in (x y) around 0
0.398 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) x)) in y
0.398 * [taylor]: Taking taylor expansion of 0.5 in y
0.398 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) x) in y
0.398 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.398 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.398 * [taylor]: Taking taylor expansion of x in y
0.398 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.398 * [taylor]: Taking taylor expansion of y in y
0.398 * [taylor]: Taking taylor expansion of x in y
0.398 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) x)) in x
0.398 * [taylor]: Taking taylor expansion of 0.5 in x
0.398 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) x) in x
0.398 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.398 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.398 * [taylor]: Taking taylor expansion of x in x
0.398 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.398 * [taylor]: Taking taylor expansion of y in x
0.398 * [taylor]: Taking taylor expansion of x in x
0.398 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) x)) in x
0.398 * [taylor]: Taking taylor expansion of 0.5 in x
0.398 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) x) in x
0.399 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.399 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.399 * [taylor]: Taking taylor expansion of x in x
0.399 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.399 * [taylor]: Taking taylor expansion of y in x
0.399 * [taylor]: Taking taylor expansion of x in x
0.399 * [taylor]: Taking taylor expansion of 0 in y
0.399 * [taylor]: Taking taylor expansion of 0.5 in y
0.399 * [taylor]: Taking taylor expansion of (neg (* 0.5 (/ 1 y))) in y
0.399 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.399 * [taylor]: Taking taylor expansion of 0.5 in y
0.399 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.399 * [taylor]: Taking taylor expansion of y in y
0.399 * [taylor]: Taking taylor expansion of 0 in y
0.400 * [taylor]: Taking taylor expansion of 0 in y
0.400 * [approximate]: Taking taylor expansion of (* -0.5 (* x (- (/ 1 y) (/ 1 x)))) in (x y) around 0
0.400 * [taylor]: Taking taylor expansion of (* -0.5 (* x (- (/ 1 y) (/ 1 x)))) in y
0.400 * [taylor]: Taking taylor expansion of -0.5 in y
0.400 * [taylor]: Taking taylor expansion of (* x (- (/ 1 y) (/ 1 x))) in y
0.400 * [taylor]: Taking taylor expansion of x in y
0.400 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.400 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.400 * [taylor]: Taking taylor expansion of y in y
0.400 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.400 * [taylor]: Taking taylor expansion of x in y
0.400 * [taylor]: Taking taylor expansion of (* -0.5 (* x (- (/ 1 y) (/ 1 x)))) in x
0.400 * [taylor]: Taking taylor expansion of -0.5 in x
0.400 * [taylor]: Taking taylor expansion of (* x (- (/ 1 y) (/ 1 x))) in x
0.400 * [taylor]: Taking taylor expansion of x in x
0.400 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.400 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.400 * [taylor]: Taking taylor expansion of y in x
0.400 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.400 * [taylor]: Taking taylor expansion of x in x
0.400 * [taylor]: Taking taylor expansion of (* -0.5 (* x (- (/ 1 y) (/ 1 x)))) in x
0.400 * [taylor]: Taking taylor expansion of -0.5 in x
0.400 * [taylor]: Taking taylor expansion of (* x (- (/ 1 y) (/ 1 x))) in x
0.401 * [taylor]: Taking taylor expansion of x in x
0.401 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.401 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.401 * [taylor]: Taking taylor expansion of y in x
0.401 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.401 * [taylor]: Taking taylor expansion of x in x
0.401 * [taylor]: Taking taylor expansion of 0 in y
0.401 * [taylor]: Taking taylor expansion of 0.5 in y
0.401 * [taylor]: Taking taylor expansion of (neg (* 0.5 (/ 1 y))) in y
0.401 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.401 * [taylor]: Taking taylor expansion of 0.5 in y
0.401 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.401 * [taylor]: Taking taylor expansion of y in y
0.401 * [taylor]: Taking taylor expansion of 0 in y
0.402 * [taylor]: Taking taylor expansion of 0 in y
0.402 * * * [progress]: simplifying candidates
0.403 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (- (log (- x y)) (+ (log x) (log 2.0))) (log y))
  (- (- (log (- x y)) (log (* x 2.0))) (log y))
  (- (log (/ (- x y) (* x 2.0))) (log 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 2.0)) (/ (- x y) (* x 2.0))) (/ (- x y) (* x 2.0))) (* (* y y) 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) (* x 2.0)))
  (neg y)
  (/ (/ x (* x 2.0)) y)
  (/ (/ y (* x 2.0)) y)
  (/ (* (cbrt (/ (- x y) (* x 2.0))) (cbrt (/ (- x y) (* x 2.0)))) (* (cbrt y) (cbrt y)))
  (/ (cbrt (/ (- x y) (* x 2.0))) (cbrt y))
  (/ (* (cbrt (/ (- x y) (* x 2.0))) (cbrt (/ (- x y) (* x 2.0)))) (sqrt y))
  (/ (cbrt (/ (- x y) (* x 2.0))) (sqrt y))
  (/ (* (cbrt (/ (- x y) (* x 2.0))) (cbrt (/ (- x y) (* x 2.0)))) 1)
  (/ (cbrt (/ (- x y) (* x 2.0))) y)
  (/ (sqrt (/ (- x y) (* x 2.0))) (* (cbrt y) (cbrt y)))
  (/ (sqrt (/ (- x y) (* x 2.0))) (cbrt y))
  (/ (sqrt (/ (- x y) (* x 2.0))) (sqrt y))
  (/ (sqrt (/ (- x y) (* x 2.0))) (sqrt y))
  (/ (sqrt (/ (- x y) (* x 2.0))) 1)
  (/ (sqrt (/ (- x y) (* x 2.0))) y)
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) x) (* (cbrt y) (cbrt y)))
  (/ (/ (cbrt (- x y)) 2.0) (cbrt y))
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) x) (sqrt y))
  (/ (/ (cbrt (- x y)) 2.0) (sqrt y))
  (/ (/ (* (cbrt (- x y)) (cbrt (- x y))) x) 1)
  (/ (/ (cbrt (- x y)) 2.0) y)
  (/ (/ (sqrt (- x y)) x) (* (cbrt y) (cbrt y)))
  (/ (/ (sqrt (- x y)) 2.0) (cbrt y))
  (/ (/ (sqrt (- x y)) x) (sqrt y))
  (/ (/ (sqrt (- x y)) 2.0) (sqrt y))
  (/ (/ (sqrt (- x y)) x) 1)
  (/ (/ (sqrt (- x y)) 2.0) y)
  (/ (/ 1 x) (* (cbrt y) (cbrt y)))
  (/ (/ (- x y) 2.0) (cbrt y))
  (/ (/ 1 x) (sqrt y))
  (/ (/ (- x y) 2.0) (sqrt y))
  (/ (/ 1 x) 1)
  (/ (/ (- x y) 2.0) y)
  (/ (/ (+ (sqrt x) (sqrt y)) x) (* (cbrt y) (cbrt y)))
  (/ (/ (- (sqrt x) (sqrt y)) 2.0) (cbrt y))
  (/ (/ (+ (sqrt x) (sqrt y)) x) (sqrt y))
  (/ (/ (- (sqrt x) (sqrt y)) 2.0) (sqrt y))
  (/ (/ (+ (sqrt x) (sqrt y)) x) 1)
  (/ (/ (- (sqrt x) (sqrt y)) 2.0) y)
  (/ (/ 1 x) (* (cbrt y) (cbrt y)))
  (/ (/ (- x y) 2.0) (cbrt y))
  (/ (/ 1 x) (sqrt y))
  (/ (/ (- x y) 2.0) (sqrt y))
  (/ (/ 1 x) 1)
  (/ (/ (- x y) 2.0) y)
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (/ (- x y) (* x 2.0)) (cbrt y))
  (/ 1 (sqrt y))
  (/ (/ (- x y) (* x 2.0)) (sqrt y))
  (/ 1 1)
  (/ (/ (- x y) (* x 2.0)) y)
  (/ (- x y) (* (cbrt y) (cbrt y)))
  (/ (/ 1 (* x 2.0)) (cbrt y))
  (/ (- x y) (sqrt y))
  (/ (/ 1 (* x 2.0)) (sqrt y))
  (/ (- x y) 1)
  (/ (/ 1 (* x 2.0)) y)
  (/ 1 y)
  (/ y (/ (- x y) (* x 2.0)))
  (/ (/ (- x y) (* x 2.0)) (* (cbrt y) (cbrt y)))
  (/ (/ (- x y) (* x 2.0)) (sqrt y))
  (/ (/ (- x y) (* x 2.0)) 1)
  (/ y (cbrt (/ (- x y) (* x 2.0))))
  (/ y (sqrt (/ (- x y) (* x 2.0))))
  (/ y (/ (cbrt (- x y)) 2.0))
  (/ y (/ (sqrt (- x y)) 2.0))
  (/ y (/ (- x y) 2.0))
  (/ y (/ (- (sqrt x) (sqrt y)) 2.0))
  (/ y (/ (- x y) 2.0))
  (/ y (/ (- x y) (* x 2.0)))
  (/ y (/ 1 (* x 2.0)))
  (* y (* x 2.0))
  (- (log (- x y)) (+ (log x) (log 2.0)))
  (- (log (- x y)) (log (* x 2.0)))
  (log (/ (- x y) (* x 2.0)))
  (exp (/ (- x y) (* x 2.0)))
  (/ (* (* (- x y) (- x y)) (- x y)) (* (* (* x x) x) (* (* 2.0 2.0) 2.0)))
  (/ (* (* (- x y) (- x y)) (- x y)) (* (* (* x 2.0) (* x 2.0)) (* x 2.0)))
  (* (cbrt (/ (- x y) (* x 2.0))) (cbrt (/ (- x y) (* x 2.0))))
  (cbrt (/ (- x y) (* x 2.0)))
  (* (* (/ (- x y) (* x 2.0)) (/ (- x y) (* x 2.0))) (/ (- x y) (* x 2.0)))
  (sqrt (/ (- x y) (* x 2.0)))
  (sqrt (/ (- x y) (* x 2.0)))
  (neg (- x y))
  (neg (* x 2.0))
  (/ x (* x 2.0))
  (/ y (* x 2.0))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) x)
  (/ (cbrt (- x y)) 2.0)
  (/ (sqrt (- x y)) x)
  (/ (sqrt (- x y)) 2.0)
  (/ 1 x)
  (/ (- x y) 2.0)
  (/ (+ (sqrt x) (sqrt y)) x)
  (/ (- (sqrt x) (sqrt y)) 2.0)
  (/ 1 x)
  (/ (- x y) 2.0)
  (/ 1 (* x 2.0))
  (/ (* x 2.0) (- x y))
  (/ (- x y) x)
  (/ (* x 2.0) (cbrt (- x y)))
  (/ (* x 2.0) (sqrt (- x y)))
  (/ (* x 2.0) (- x y))
  (/ (* x 2.0) (- (sqrt x) (sqrt y)))
  (/ (* x 2.0) (- x y))
  (* (* x 2.0) (+ (* x x) (+ (* y y) (* x y))))
  (* (* x 2.0) (+ 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)))
  (- 0.5 (* 0.5 (/ y x)))
  (- 0.5 (* 0.5 (/ y x)))
  (- 0.5 (* 0.5 (/ y x)))
0.439 * * [simplify]: iteration  0 :  6470  enodes  (cost  1077 )
0.443 * [simplify]: Simplified to:
   (log (/ (- x y) (* x (* y 2.0))))
  (log (/ (- x y) (* x (* y 2.0))))
  (log (/ (- x y) (* x (* y 2.0))))
  (log (/ (- x y) (* x (* y 2.0))))
  (exp (/ (- x y) (* x (* y 2.0))))
  (pow (/ (- x y) (* x (* y 2.0))) 3)
  (pow (/ (- x y) (* x (* y 2.0))) 3)
  (pow (/ (- x y) (* x (* y 2.0))) 3)
  (* (cbrt (/ (- x y) (* x (* y 2.0)))) (cbrt (/ (- x y) (* x (* y 2.0)))))
  (cbrt (/ (- x y) (* x (* y 2.0))))
  (pow (/ (- x y) (* x (* y 2.0))) 3)
  (sqrt (/ (- x y) (* x (* y 2.0))))
  (sqrt (/ (- x y) (* x (* y 2.0))))
  (/ (- y x) (* x 2.0))
  (neg y)
  (/ (/ 1 2.0) y)
  (/ (/ 1 2.0) x)
  (* (/ (cbrt (/ (- x y) (* x 2.0))) (cbrt y)) (/ (cbrt (/ (- x y) (* x 2.0))) (cbrt y)))
  (/ (cbrt (/ (- x y) (* x 2.0))) (cbrt y))
  (* (/ (cbrt (/ (- x y) (* x 2.0))) (sqrt y)) (cbrt (/ (- x y) (* x 2.0))))
  (/ (cbrt (/ (- x y) (* x 2.0))) (sqrt y))
  (* (cbrt (/ (- x y) (* x 2.0))) (cbrt (/ (- x y) (* x 2.0))))
  (/ (cbrt (/ (- x y) (* x 2.0))) y)
  (/ (sqrt (/ (- x y) (* x 2.0))) (* (cbrt y) (cbrt y)))
  (/ (sqrt (/ (- x y) (* x 2.0))) (cbrt y))
  (/ (sqrt (/ (- x y) (* x 2.0))) (sqrt y))
  (/ (sqrt (/ (- x y) (* x 2.0))) (sqrt y))
  (sqrt (/ (- x y) (* x 2.0)))
  (/ (sqrt (/ (- x y) (* x 2.0))) y)
  (* (/ (cbrt (- x y)) x) (/ (cbrt (- x y)) (* (cbrt y) (cbrt y))))
  (/ (cbrt (- x y)) (* 2.0 (cbrt y)))
  (* (/ (cbrt (- x y)) x) (/ (cbrt (- x y)) (sqrt y)))
  (/ (cbrt (- x y)) (* 2.0 (sqrt y)))
  (* (cbrt (- x y)) (/ (cbrt (- x y)) x))
  (/ (cbrt (- x y)) (* y 2.0))
  (/ (sqrt (- x y)) (* x (* (cbrt y) (cbrt y))))
  (/ (sqrt (- x y)) (* 2.0 (cbrt y)))
  (/ (sqrt (- x y)) (* x (sqrt y)))
  (/ (sqrt (- x y)) (* 2.0 (sqrt y)))
  (/ (sqrt (- x y)) x)
  (/ (sqrt (- x y)) (* y 2.0))
  (/ 1 (* x (* (cbrt y) (cbrt y))))
  (/ (- x y) (* 2.0 (cbrt y)))
  (/ 1 (* x (sqrt y)))
  (/ (- x y) (* 2.0 (sqrt y)))
  (/ 1 x)
  (/ (- x y) (* y 2.0))
  (/ (+ (sqrt y) (sqrt x)) (* x (* (cbrt y) (cbrt y))))
  (/ (- (sqrt x) (sqrt y)) (* 2.0 (cbrt y)))
  (/ (+ (sqrt y) (sqrt x)) (* x (sqrt y)))
  (/ (- (sqrt x) (sqrt y)) (* 2.0 (sqrt y)))
  (/ (+ (sqrt y) (sqrt x)) x)
  (/ (- (sqrt x) (sqrt y)) (* y 2.0))
  (/ 1 (* x (* (cbrt y) (cbrt y))))
  (/ (- x y) (* 2.0 (cbrt y)))
  (/ 1 (* x (sqrt y)))
  (/ (- x y) (* 2.0 (sqrt y)))
  (/ 1 x)
  (/ (- x y) (* y 2.0))
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (- x y) (* x (* 2.0 (cbrt y))))
  (/ 1 (sqrt y))
  (/ (- x y) (* x (* 2.0 (sqrt y))))
  1
  (/ (- x y) (* x (* y 2.0)))
  (/ (- x y) (* (cbrt y) (cbrt y)))
  (/ (/ (/ 1 2.0) x) (cbrt y))
  (/ (- x y) (sqrt y))
  (/ (/ (/ 1 2.0) x) (sqrt y))
  (- x y)
  (/ (/ 1 2.0) (* x y))
  (/ 1 y)
  (* x (* 2.0 (/ y (- x y))))
  (/ (- x y) (* x (* (cbrt y) (* 2.0 (cbrt y)))))
  (/ (- x y) (* x (* 2.0 (sqrt y))))
  (/ (- x y) (* x 2.0))
  (/ y (cbrt (/ (- x y) (* x 2.0))))
  (/ y (sqrt (/ (- x y) (* x 2.0))))
  (* 2.0 (/ y (cbrt (- x y))))
  (* 2.0 (/ y (sqrt (- x y))))
  (* 2.0 (/ y (- x y)))
  (* 2.0 (/ y (- (sqrt x) (sqrt y))))
  (* 2.0 (/ y (- x y)))
  (* x (* 2.0 (/ y (- x y))))
  (* x (* y 2.0))
  (* x (* y 2.0))
  (log (/ (- x y) (* x 2.0)))
  (log (/ (- x y) (* x 2.0)))
  (log (/ (- x y) (* x 2.0)))
  (exp (/ (- x y) (* x 2.0)))
  (pow (/ (- x y) (* x 2.0)) 3)
  (pow (/ (- x y) (* x 2.0)) 3)
  (* (cbrt (/ (- x y) (* x 2.0))) (cbrt (/ (- x y) (* x 2.0))))
  (cbrt (/ (- x y) (* x 2.0)))
  (pow (/ (- x y) (* x 2.0)) 3)
  (sqrt (/ (- x y) (* x 2.0)))
  (sqrt (/ (- x y) (* x 2.0)))
  (- y x)
  (* x (neg 2.0))
  (/ 1 2.0)
  (/ y (* x 2.0))
  (* (cbrt (- x y)) (/ (cbrt (- x y)) x))
  (/ (cbrt (- x y)) 2.0)
  (/ (sqrt (- x y)) x)
  (/ (sqrt (- x y)) 2.0)
  (/ 1 x)
  (/ (- x y) 2.0)
  (/ (+ (sqrt y) (sqrt x)) x)
  (/ (- (sqrt x) (sqrt y)) 2.0)
  (/ 1 x)
  (/ (- x y) 2.0)
  (/ (/ 1 2.0) x)
  (* (/ x (- x y)) 2.0)
  (- 1 (/ y x))
  (* (/ x (cbrt (- x y))) 2.0)
  (* (/ x (sqrt (- x y))) 2.0)
  (* (/ x (- x y)) 2.0)
  (* (/ x (- (sqrt x) (sqrt y))) 2.0)
  (* (/ x (- x y)) 2.0)
  (* x (* 2.0 (+ (* x x) (* y (+ x y)))))
  (* x (* 2.0 (+ x y)))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- 0.5 (* y (/ 0.5 x)))
  (- 0.5 (* y (/ 0.5 x)))
  (- 0.5 (* y (/ 0.5 x)))
0.444 * * * [progress]: adding candidates to table
0.520 * [progress]: [Phase 3 of 3] Extracting.
0.520 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (/ (/ (- x y) (* x 2.0)) y))> #<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))>)
0.520 * * * [regime-changes]: Trying 2 branch expressions: (y x)
0.520 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (/ (/ (- x y) (* x 2.0)) y))> #<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))>)
0.552 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (/ (/ (- x y) (* x 2.0)) y))> #<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))>)
0.583 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
0.583 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (/ 0.5 y) (/ 0.5 x))
0.584 * * [simplify]: iteration  0 :  23  enodes  (cost  7 )
0.584 * * [simplify]: iteration  1 :  23  enodes  (cost  7 )
0.584 * [simplify]: Simplified to:
   (- (/ 0.5 y) (/ 0.5 x))
1.191 * [regime-testing]: End program error score: 0.01307475465692226
1.258 * [regime-testing]: Target error score: 0.01307475465692226