12.118 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.016 * * * [progress]: [2/2] Setting up program.
0.019 * [progress]: [Phase 2 of 3] Improving.
0.019 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (- x y) (* (* x 2.0) y))
0.020 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
0.021 * * [simplify]: iteration  1 :  18  enodes  (cost  9 )
0.023 * * [simplify]: iteration  2 :  47  enodes  (cost  9 )
0.030 * * [simplify]: iteration  3 :  104  enodes  (cost  9 )
0.041 * * [simplify]: iteration  4 :  164  enodes  (cost  9 )
0.057 * * [simplify]: iteration  5 :  189  enodes  (cost  9 )
0.076 * * [simplify]: iteration  6 :  211  enodes  (cost  9 )
0.092 * * [simplify]: iteration  7 :  215  enodes  (cost  9 )
0.108 * * [simplify]: iteration  8 :  221  enodes  (cost  9 )
0.127 * * [simplify]: iteration  done :  221  enodes  (cost  9 )
0.127 * [simplify]: Simplified to:
   (/ (- x y) (* (* x 2.0) y))
0.127 * * [progress]: iteration 1 / 4
0.127 * * * [progress]: picking best candidate
0.130 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- x y) (* (* x 2.0) y)))>
0.130 * * * [progress]: localizing error
0.135 * * * [progress]: generating rewritten candidates
0.135 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.145 * * * [progress]: generating series expansions
0.145 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.145 * [approximate]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in (x y) around 0
0.145 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in y
0.146 * [taylor]: Taking taylor expansion of 0.5 in y
0.146 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in y
0.146 * [taylor]: Taking taylor expansion of (- x y) 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 (* x y) 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 y) (* x y))) in x
0.146 * [taylor]: Taking taylor expansion of 0.5 in x
0.146 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
0.146 * [taylor]: Taking taylor expansion of (- x y) 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 (* x y) 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 y) (* x y))) in x
0.146 * [taylor]: Taking taylor expansion of 0.5 in x
0.146 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
0.146 * [taylor]: Taking taylor expansion of (- x y) 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 (* x y) 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 in y
0.146 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.146 * [taylor]: Taking taylor expansion of 0.5 in y
0.146 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.146 * [taylor]: Taking taylor expansion of y in y
0.147 * [taylor]: Taking taylor expansion of 0 in y
0.147 * [taylor]: Taking taylor expansion of 0 in y
0.147 * [taylor]: Taking taylor expansion of 0 in y
0.148 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in (x y) around 0
0.148 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in y
0.148 * [taylor]: Taking taylor expansion of 0.5 in y
0.148 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in y
0.148 * [taylor]: Taking taylor expansion of x in y
0.148 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
0.148 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.148 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.148 * [taylor]: Taking taylor expansion of x in y
0.148 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.148 * [taylor]: Taking taylor expansion of y in y
0.148 * [taylor]: Taking taylor expansion of y in y
0.148 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
0.148 * [taylor]: Taking taylor expansion of 0.5 in x
0.148 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
0.148 * [taylor]: Taking taylor expansion of x in x
0.148 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
0.148 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.148 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.148 * [taylor]: Taking taylor expansion of x in x
0.148 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.148 * [taylor]: Taking taylor expansion of y in x
0.148 * [taylor]: Taking taylor expansion of y in x
0.148 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
0.148 * [taylor]: Taking taylor expansion of 0.5 in x
0.148 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
0.148 * [taylor]: Taking taylor expansion of x in x
0.148 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
0.148 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.148 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.148 * [taylor]: Taking taylor expansion of x in x
0.148 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.148 * [taylor]: Taking taylor expansion of y in x
0.148 * [taylor]: Taking taylor expansion of y in x
0.148 * [taylor]: Taking taylor expansion of 0 in y
0.149 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.149 * [taylor]: Taking taylor expansion of 0.5 in y
0.149 * [taylor]: Taking taylor expansion of y in y
0.149 * [taylor]: Taking taylor expansion of (neg 0.5) in y
0.149 * [taylor]: Taking taylor expansion of 0.5 in y
0.149 * [taylor]: Taking taylor expansion of 0 in y
0.150 * [taylor]: Taking taylor expansion of 0 in y
0.150 * [taylor]: Taking taylor expansion of 0 in y
0.150 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in (x y) around 0
0.151 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in y
0.151 * [taylor]: Taking taylor expansion of 0.5 in y
0.151 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in y
0.151 * [taylor]: Taking taylor expansion of x in y
0.151 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
0.151 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.151 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.151 * [taylor]: Taking taylor expansion of y in y
0.151 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.151 * [taylor]: Taking taylor expansion of x in y
0.151 * [taylor]: Taking taylor expansion of y in y
0.151 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
0.151 * [taylor]: Taking taylor expansion of 0.5 in x
0.151 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
0.151 * [taylor]: Taking taylor expansion of x in x
0.151 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
0.151 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.151 * [taylor]: Taking taylor expansion of y in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.151 * [taylor]: Taking taylor expansion of x in x
0.151 * [taylor]: Taking taylor expansion of y in x
0.151 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
0.151 * [taylor]: Taking taylor expansion of 0.5 in x
0.151 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
0.151 * [taylor]: Taking taylor expansion of x in x
0.151 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
0.151 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.151 * [taylor]: Taking taylor expansion of y in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.151 * [taylor]: Taking taylor expansion of x in x
0.151 * [taylor]: Taking taylor expansion of y in x
0.151 * [taylor]: Taking taylor expansion of 0 in y
0.151 * [taylor]: Taking taylor expansion of (neg (* 0.5 y)) in y
0.152 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.152 * [taylor]: Taking taylor expansion of 0.5 in y
0.152 * [taylor]: Taking taylor expansion of y in y
0.152 * [taylor]: Taking taylor expansion of 0.5 in y
0.152 * [taylor]: Taking taylor expansion of 0 in y
0.153 * [taylor]: Taking taylor expansion of 0 in y
0.153 * [taylor]: Taking taylor expansion of 0 in y
0.153 * * * [progress]: simplifying candidates
0.154 * [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)))
0.156 * * [simplify]: iteration  0 :  82  enodes  (cost  447 )
0.169 * * [simplify]: iteration  1 :  236  enodes  (cost  433 )
0.222 * * [simplify]: iteration  2 :  914  enodes  (cost  353 )
0.522 * * [simplify]: iteration  3 :  4832  enodes  (cost  351 )
1.237 * * [simplify]: iteration  done :  5000  enodes  (cost  351 )
1.240 * [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))
1.241 * * * [progress]: adding candidates to table
1.276 * * [progress]: iteration 2 / 4
1.276 * * * [progress]: picking best candidate
1.280 * * * * [pick]: Picked  #<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))>
1.280 * * * [progress]: localizing error
1.289 * * * [progress]: generating rewritten candidates
1.289 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
1.303 * * * [progress]: generating series expansions
1.303 * * * * [progress]: [ 1 / 1 ] generating series at (2)
1.303 * [approximate]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in (y x) around 0
1.303 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
1.303 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
1.303 * [taylor]: Taking taylor expansion of 0.5 in x
1.303 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.304 * [taylor]: Taking taylor expansion of y in x
1.304 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
1.304 * [taylor]: Taking taylor expansion of 0.5 in x
1.304 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.304 * [taylor]: Taking taylor expansion of x in x
1.304 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
1.304 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
1.304 * [taylor]: Taking taylor expansion of 0.5 in y
1.304 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.304 * [taylor]: Taking taylor expansion of y in y
1.304 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
1.304 * [taylor]: Taking taylor expansion of 0.5 in y
1.304 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.304 * [taylor]: Taking taylor expansion of x in y
1.304 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
1.304 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
1.304 * [taylor]: Taking taylor expansion of 0.5 in y
1.304 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.304 * [taylor]: Taking taylor expansion of y in y
1.304 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
1.304 * [taylor]: Taking taylor expansion of 0.5 in y
1.304 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.304 * [taylor]: Taking taylor expansion of x in y
1.304 * [taylor]: Taking taylor expansion of 0.5 in x
1.304 * [taylor]: Taking taylor expansion of (neg (* 0.5 (/ 1 x))) in x
1.304 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
1.304 * [taylor]: Taking taylor expansion of 0.5 in x
1.304 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.304 * [taylor]: Taking taylor expansion of x in x
1.305 * [taylor]: Taking taylor expansion of 0 in x
1.305 * [taylor]: Taking taylor expansion of 0 in x
1.305 * [taylor]: Taking taylor expansion of 0 in x
1.305 * [approximate]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in (y x) around 0
1.305 * [taylor]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in x
1.305 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
1.305 * [taylor]: Taking taylor expansion of 0.5 in x
1.306 * [taylor]: Taking taylor expansion of y in x
1.306 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
1.306 * [taylor]: Taking taylor expansion of 0.5 in x
1.306 * [taylor]: Taking taylor expansion of x in x
1.306 * [taylor]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in y
1.306 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
1.306 * [taylor]: Taking taylor expansion of 0.5 in y
1.306 * [taylor]: Taking taylor expansion of y in y
1.306 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
1.306 * [taylor]: Taking taylor expansion of 0.5 in y
1.306 * [taylor]: Taking taylor expansion of x in y
1.306 * [taylor]: Taking taylor expansion of (- (* 0.5 y) (* 0.5 x)) in y
1.306 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
1.306 * [taylor]: Taking taylor expansion of 0.5 in y
1.306 * [taylor]: Taking taylor expansion of y in y
1.306 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
1.306 * [taylor]: Taking taylor expansion of 0.5 in y
1.306 * [taylor]: Taking taylor expansion of x in y
1.306 * [taylor]: Taking taylor expansion of (neg (* 0.5 x)) in x
1.306 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
1.306 * [taylor]: Taking taylor expansion of 0.5 in x
1.306 * [taylor]: Taking taylor expansion of x in x
1.306 * [taylor]: Taking taylor expansion of 0.5 in x
1.306 * [taylor]: Taking taylor expansion of 0 in x
1.306 * [taylor]: Taking taylor expansion of 0 in x
1.307 * [approximate]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in (y x) around 0
1.307 * [taylor]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in x
1.307 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
1.307 * [taylor]: Taking taylor expansion of 0.5 in x
1.307 * [taylor]: Taking taylor expansion of x in x
1.307 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
1.307 * [taylor]: Taking taylor expansion of 0.5 in x
1.307 * [taylor]: Taking taylor expansion of y in x
1.307 * [taylor]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in y
1.307 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
1.307 * [taylor]: Taking taylor expansion of 0.5 in y
1.307 * [taylor]: Taking taylor expansion of x in y
1.307 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
1.307 * [taylor]: Taking taylor expansion of 0.5 in y
1.307 * [taylor]: Taking taylor expansion of y in y
1.307 * [taylor]: Taking taylor expansion of (- (* 0.5 x) (* 0.5 y)) in y
1.307 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
1.307 * [taylor]: Taking taylor expansion of 0.5 in y
1.307 * [taylor]: Taking taylor expansion of x in y
1.307 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
1.307 * [taylor]: Taking taylor expansion of 0.5 in y
1.307 * [taylor]: Taking taylor expansion of y in y
1.307 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
1.307 * [taylor]: Taking taylor expansion of 0.5 in x
1.307 * [taylor]: Taking taylor expansion of x in x
1.307 * [taylor]: Taking taylor expansion of (neg 0.5) in x
1.307 * [taylor]: Taking taylor expansion of 0.5 in x
1.307 * [taylor]: Taking taylor expansion of 0 in x
1.308 * [taylor]: Taking taylor expansion of 0 in x
1.308 * * * [progress]: simplifying candidates
1.308 * [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)))
1.310 * * [simplify]: iteration  0 :  61  enodes  (cost  315 )
1.318 * * [simplify]: iteration  1 :  134  enodes  (cost  304 )
1.335 * * [simplify]: iteration  2 :  284  enodes  (cost  282 )
1.389 * * [simplify]: iteration  3 :  911  enodes  (cost  282 )
1.667 * * [simplify]: iteration  4 :  3628  enodes  (cost  278 )
2.251 * * [simplify]: iteration  done :  5001  enodes  (cost  278 )
2.251 * [simplify]: Simplified to:
   (exp (- (/ 0.5 y) (/ 0.5 x)))
  (log (- (/ 0.5 y) (/ 0.5 x)))
  (exp (- (/ 0.5 y) (/ 0.5 x)))
  (* (cbrt (- (/ 0.5 y) (/ 0.5 x))) (cbrt (- (/ 0.5 y) (/ 0.5 x))))
  (cbrt (- (/ 0.5 y) (/ 0.5 x)))
  (pow (- (/ 0.5 y) (/ 0.5 x)) 3)
  (sqrt (- (/ 0.5 y) (/ 0.5 x)))
  (sqrt (- (/ 0.5 y) (/ 0.5 x)))
  (* 0.5 (- x y))
  (* y x)
  (- (pow (/ 0.5 y) 3) (pow (/ 0.5 x) 3))
  (* 0.5 (+ (/ 0.5 (* x x)) (/ (+ (/ 0.5 y) (/ 0.5 x)) y)))
  (/ (neg 0.5) x)
  (* 0.5 (- (/ 0.5 (* y y)) (/ 0.5 (* x x))))
  (+ (/ 0.5 y) (/ 0.5 x))
  (+ (sqrt (/ 0.5 y)) (sqrt (/ 0.5 x)))
  (- (sqrt (/ 0.5 y)) (sqrt (/ 0.5 x)))
  (+ (sqrt (/ 0.5 y)) (/ (sqrt 0.5) (sqrt x)))
  (- (sqrt (/ 0.5 y)) (/ (sqrt 0.5) (sqrt x)))
  (+ (/ (sqrt 0.5) (sqrt y)) (sqrt (/ 0.5 x)))
  (- (/ (sqrt 0.5) (sqrt y)) (sqrt (/ 0.5 x)))
  (+ (/ (sqrt 0.5) (sqrt y)) (/ (sqrt 0.5) (sqrt x)))
  (- (/ (sqrt 0.5) (sqrt y)) (/ (sqrt 0.5) (sqrt x)))
  (- (/ (cbrt 0.5) y) (/ (cbrt 0.5) x))
  (- (/ (sqrt 0.5) y) (/ (sqrt 0.5) x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 1 y) (/ 1 x))
  (/ (neg 0.5) x)
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
2.252 * * * [progress]: adding candidates to table
2.290 * * [progress]: iteration 3 / 4
2.290 * * * [progress]: picking best candidate
2.293 * * * * [pick]: Picked  #<alt (λ (x y) (* (/ 1 (* x 2.0)) (/ (- x y) y)))>
2.293 * * * [progress]: localizing error
2.300 * * * [progress]: generating rewritten candidates
2.300 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
2.316 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
2.326 * * * [progress]: generating series expansions
2.326 * * * * [progress]: [ 1 / 2 ] generating series at (2)
2.326 * [approximate]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in (x y) around 0
2.326 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in y
2.326 * [taylor]: Taking taylor expansion of 0.5 in y
2.326 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in y
2.326 * [taylor]: Taking taylor expansion of (- x y) in y
2.326 * [taylor]: Taking taylor expansion of x in y
2.326 * [taylor]: Taking taylor expansion of y in y
2.326 * [taylor]: Taking taylor expansion of (* x y) in y
2.326 * [taylor]: Taking taylor expansion of x in y
2.326 * [taylor]: Taking taylor expansion of y in y
2.327 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
2.327 * [taylor]: Taking taylor expansion of 0.5 in x
2.327 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
2.327 * [taylor]: Taking taylor expansion of (- x y) in x
2.327 * [taylor]: Taking taylor expansion of x in x
2.327 * [taylor]: Taking taylor expansion of y in x
2.327 * [taylor]: Taking taylor expansion of (* x y) in x
2.327 * [taylor]: Taking taylor expansion of x in x
2.327 * [taylor]: Taking taylor expansion of y in x
2.327 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
2.327 * [taylor]: Taking taylor expansion of 0.5 in x
2.327 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
2.327 * [taylor]: Taking taylor expansion of (- x y) in x
2.327 * [taylor]: Taking taylor expansion of x in x
2.327 * [taylor]: Taking taylor expansion of y in x
2.327 * [taylor]: Taking taylor expansion of (* x y) in x
2.327 * [taylor]: Taking taylor expansion of x in x
2.327 * [taylor]: Taking taylor expansion of y in x
2.327 * [taylor]: Taking taylor expansion of -0.5 in y
2.327 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
2.327 * [taylor]: Taking taylor expansion of 0.5 in y
2.327 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.327 * [taylor]: Taking taylor expansion of y in y
2.328 * [taylor]: Taking taylor expansion of 0 in y
2.328 * [taylor]: Taking taylor expansion of 0 in y
2.328 * [taylor]: Taking taylor expansion of 0 in y
2.328 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in (x y) around 0
2.328 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in y
2.329 * [taylor]: Taking taylor expansion of 0.5 in y
2.329 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in y
2.329 * [taylor]: Taking taylor expansion of x in y
2.329 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
2.329 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
2.329 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.329 * [taylor]: Taking taylor expansion of x in y
2.329 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.329 * [taylor]: Taking taylor expansion of y in y
2.329 * [taylor]: Taking taylor expansion of y in y
2.329 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
2.329 * [taylor]: Taking taylor expansion of 0.5 in x
2.329 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
2.329 * [taylor]: Taking taylor expansion of x in x
2.329 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
2.329 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.329 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.329 * [taylor]: Taking taylor expansion of x in x
2.329 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.329 * [taylor]: Taking taylor expansion of y in x
2.329 * [taylor]: Taking taylor expansion of y in x
2.329 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 x) (/ 1 y)) y))) in x
2.329 * [taylor]: Taking taylor expansion of 0.5 in x
2.329 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 x) (/ 1 y)) y)) in x
2.329 * [taylor]: Taking taylor expansion of x in x
2.329 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
2.329 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.329 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.329 * [taylor]: Taking taylor expansion of x in x
2.329 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.329 * [taylor]: Taking taylor expansion of y in x
2.329 * [taylor]: Taking taylor expansion of y in x
2.329 * [taylor]: Taking taylor expansion of 0 in y
2.329 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
2.329 * [taylor]: Taking taylor expansion of 0.5 in y
2.330 * [taylor]: Taking taylor expansion of y in y
2.330 * [taylor]: Taking taylor expansion of (neg 0.5) in y
2.330 * [taylor]: Taking taylor expansion of 0.5 in y
2.330 * [taylor]: Taking taylor expansion of 0 in y
2.331 * [taylor]: Taking taylor expansion of 0 in y
2.331 * [taylor]: Taking taylor expansion of 0 in y
2.331 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in (x y) around 0
2.331 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in y
2.331 * [taylor]: Taking taylor expansion of 0.5 in y
2.331 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in y
2.331 * [taylor]: Taking taylor expansion of x in y
2.331 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
2.331 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
2.331 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.331 * [taylor]: Taking taylor expansion of y in y
2.332 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.332 * [taylor]: Taking taylor expansion of x in y
2.332 * [taylor]: Taking taylor expansion of y in y
2.332 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
2.332 * [taylor]: Taking taylor expansion of 0.5 in x
2.332 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
2.332 * [taylor]: Taking taylor expansion of x in x
2.332 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
2.332 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.332 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.332 * [taylor]: Taking taylor expansion of y in x
2.332 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.332 * [taylor]: Taking taylor expansion of x in x
2.332 * [taylor]: Taking taylor expansion of y in x
2.332 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* (- (/ 1 y) (/ 1 x)) y))) in x
2.332 * [taylor]: Taking taylor expansion of 0.5 in x
2.332 * [taylor]: Taking taylor expansion of (* x (* (- (/ 1 y) (/ 1 x)) y)) in x
2.332 * [taylor]: Taking taylor expansion of x in x
2.332 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
2.332 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.332 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.332 * [taylor]: Taking taylor expansion of y in x
2.332 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.332 * [taylor]: Taking taylor expansion of x in x
2.332 * [taylor]: Taking taylor expansion of y in x
2.332 * [taylor]: Taking taylor expansion of 0 in y
2.332 * [taylor]: Taking taylor expansion of (neg (* 0.5 y)) in y
2.332 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
2.332 * [taylor]: Taking taylor expansion of 0.5 in y
2.332 * [taylor]: Taking taylor expansion of y in y
2.333 * [taylor]: Taking taylor expansion of 0.5 in y
2.333 * [taylor]: Taking taylor expansion of 0 in y
2.333 * [taylor]: Taking taylor expansion of 0 in y
2.334 * [taylor]: Taking taylor expansion of 0 in y
2.334 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
2.334 * [approximate]: Taking taylor expansion of (/ (- x y) y) in (x y) around 0
2.334 * [taylor]: Taking taylor expansion of (/ (- x y) y) in y
2.334 * [taylor]: Taking taylor expansion of (- x y) in y
2.334 * [taylor]: Taking taylor expansion of x in y
2.334 * [taylor]: Taking taylor expansion of y in y
2.334 * [taylor]: Taking taylor expansion of y in y
2.334 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
2.334 * [taylor]: Taking taylor expansion of (- x y) in x
2.334 * [taylor]: Taking taylor expansion of x in x
2.334 * [taylor]: Taking taylor expansion of y in x
2.334 * [taylor]: Taking taylor expansion of y in x
2.334 * [taylor]: Taking taylor expansion of (/ (- x y) y) in x
2.334 * [taylor]: Taking taylor expansion of (- x y) in x
2.334 * [taylor]: Taking taylor expansion of x in x
2.334 * [taylor]: Taking taylor expansion of y in x
2.334 * [taylor]: Taking taylor expansion of y in x
2.335 * [taylor]: Taking taylor expansion of -1 in y
2.335 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.335 * [taylor]: Taking taylor expansion of y in y
2.335 * [taylor]: Taking taylor expansion of 0 in y
2.335 * [taylor]: Taking taylor expansion of 0 in y
2.335 * [taylor]: Taking taylor expansion of 0 in y
2.335 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in (x y) around 0
2.335 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in y
2.335 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
2.335 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.335 * [taylor]: Taking taylor expansion of x in y
2.335 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.335 * [taylor]: Taking taylor expansion of y in y
2.336 * [taylor]: Taking taylor expansion of y in y
2.336 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
2.336 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.336 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.336 * [taylor]: Taking taylor expansion of x in x
2.336 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.336 * [taylor]: Taking taylor expansion of y in x
2.336 * [taylor]: Taking taylor expansion of y in x
2.336 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) y) in x
2.336 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
2.336 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.336 * [taylor]: Taking taylor expansion of x in x
2.336 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.336 * [taylor]: Taking taylor expansion of y in x
2.336 * [taylor]: Taking taylor expansion of y in x
2.336 * [taylor]: Taking taylor expansion of y in y
2.336 * [taylor]: Taking taylor expansion of (neg 1) in y
2.336 * [taylor]: Taking taylor expansion of 1 in y
2.336 * [taylor]: Taking taylor expansion of 0 in y
2.337 * [taylor]: Taking taylor expansion of 0 in y
2.337 * [taylor]: Taking taylor expansion of 0 in y
2.337 * [approximate]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in (x y) around 0
2.337 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in y
2.337 * [taylor]: Taking taylor expansion of -1 in y
2.337 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in y
2.337 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
2.337 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.337 * [taylor]: Taking taylor expansion of y in y
2.337 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.337 * [taylor]: Taking taylor expansion of x in y
2.337 * [taylor]: Taking taylor expansion of y in y
2.337 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in x
2.337 * [taylor]: Taking taylor expansion of -1 in x
2.337 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
2.337 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.337 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.337 * [taylor]: Taking taylor expansion of y in x
2.337 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.337 * [taylor]: Taking taylor expansion of x in x
2.337 * [taylor]: Taking taylor expansion of y in x
2.337 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) y)) in x
2.337 * [taylor]: Taking taylor expansion of -1 in x
2.337 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) y) in x
2.338 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
2.338 * [taylor]: Taking taylor expansion of (/ 1 y) in x
2.338 * [taylor]: Taking taylor expansion of y in x
2.338 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.338 * [taylor]: Taking taylor expansion of x in x
2.338 * [taylor]: Taking taylor expansion of y in x
2.338 * [taylor]: Taking taylor expansion of y in y
2.338 * [taylor]: Taking taylor expansion of (neg 1) in y
2.338 * [taylor]: Taking taylor expansion of 1 in y
2.338 * [taylor]: Taking taylor expansion of 0 in y
2.338 * [taylor]: Taking taylor expansion of 0 in y
2.339 * [taylor]: Taking taylor expansion of 0 in y
2.339 * * * [progress]: simplifying candidates
2.340 * [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)
2.345 * * [simplify]: iteration  0 :  164  enodes  (cost  1374 )
2.376 * * [simplify]: iteration  1 :  476  enodes  (cost  1214 )
2.490 * * [simplify]: iteration  2 :  2020  enodes  (cost  1019 )
2.807 * * [simplify]: iteration  done :  5001  enodes  (cost  1019 )
2.808 * [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))) (* (cbrt y) (cbrt y))) 2.0) x)
  (/ (/ (cbrt (- x y)) (/ (sqrt y) (cbrt (- x y)))) (* x 2.0))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* x 2.0))
  (/ (/ (sqrt (- x y)) (* (cbrt y) (cbrt y))) (* x 2.0))
  (/ (/ (/ (sqrt (- x y)) (sqrt y)) 2.0) x)
  (/ (sqrt (- x y)) (* x 2.0))
  (/ (/ (/ 1 x) 2.0) (* (cbrt y) (cbrt y)))
  (/ (/ (/ 1 x) 2.0) (sqrt y))
  (/ 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 x) 2.0) (* (cbrt y) (cbrt y)))
  (/ (/ (/ 1 x) 2.0) (sqrt y))
  (/ 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) -1)
  (log (- (/ x y) 1))
  (log (- (/ x y) 1))
  (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) -1)
  (/ (+ (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) -1)
  (/ 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) -1)
  (+ (/ x y) -1)
  (+ (/ x y) -1)
2.808 * * * [progress]: adding candidates to table
2.891 * * [progress]: iteration 4 / 4
2.891 * * * [progress]: picking best candidate
2.893 * * * * [pick]: Picked  #<alt (λ (x y) (/ (+ (/ x y) -1) (* x 2.0)))>
2.893 * * * [progress]: localizing error
2.899 * * * [progress]: generating rewritten candidates
2.899 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
2.912 * * * [progress]: generating series expansions
2.912 * * * * [progress]: [ 1 / 1 ] generating series at (2)
2.912 * [approximate]: Taking taylor expansion of (* 0.5 (/ (- (/ x y) 1) x)) in (x y) around 0
2.912 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- (/ x y) 1) x)) in y
2.912 * [taylor]: Taking taylor expansion of 0.5 in y
2.912 * [taylor]: Taking taylor expansion of (/ (- (/ x y) 1) x) in y
2.912 * [taylor]: Taking taylor expansion of (- (/ x y) 1) in y
2.912 * [taylor]: Taking taylor expansion of (/ x y) in y
2.912 * [taylor]: Taking taylor expansion of x in y
2.912 * [taylor]: Taking taylor expansion of y in y
2.912 * [taylor]: Taking taylor expansion of 1 in y
2.912 * [taylor]: Taking taylor expansion of x in y
2.912 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- (/ x y) 1) x)) in x
2.912 * [taylor]: Taking taylor expansion of 0.5 in x
2.912 * [taylor]: Taking taylor expansion of (/ (- (/ x y) 1) x) in x
2.912 * [taylor]: Taking taylor expansion of (- (/ x y) 1) in x
2.912 * [taylor]: Taking taylor expansion of (/ x y) in x
2.912 * [taylor]: Taking taylor expansion of x in x
2.912 * [taylor]: Taking taylor expansion of y in x
2.912 * [taylor]: Taking taylor expansion of 1 in x
2.912 * [taylor]: Taking taylor expansion of x in x
2.912 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- (/ x y) 1) x)) in x
2.912 * [taylor]: Taking taylor expansion of 0.5 in x
2.912 * [taylor]: Taking taylor expansion of (/ (- (/ x y) 1) x) in x
2.912 * [taylor]: Taking taylor expansion of (- (/ x y) 1) in x
2.912 * [taylor]: Taking taylor expansion of (/ x y) in x
2.912 * [taylor]: Taking taylor expansion of x in x
2.912 * [taylor]: Taking taylor expansion of y in x
2.913 * [taylor]: Taking taylor expansion of 1 in x
2.913 * [taylor]: Taking taylor expansion of x in x
2.913 * [taylor]: Taking taylor expansion of -0.5 in y
2.913 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
2.913 * [taylor]: Taking taylor expansion of 0.5 in y
2.913 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.913 * [taylor]: Taking taylor expansion of y in y
2.913 * [taylor]: Taking taylor expansion of 0 in y
2.913 * [taylor]: Taking taylor expansion of 0 in y
2.914 * [taylor]: Taking taylor expansion of 0 in y
2.914 * [approximate]: Taking taylor expansion of (* 0.5 (* (- (/ y x) 1) x)) in (x y) around 0
2.914 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ y x) 1) x)) in y
2.914 * [taylor]: Taking taylor expansion of 0.5 in y
2.914 * [taylor]: Taking taylor expansion of (* (- (/ y x) 1) x) in y
2.914 * [taylor]: Taking taylor expansion of (- (/ y x) 1) in y
2.914 * [taylor]: Taking taylor expansion of (/ y x) in y
2.914 * [taylor]: Taking taylor expansion of y in y
2.914 * [taylor]: Taking taylor expansion of x in y
2.914 * [taylor]: Taking taylor expansion of 1 in y
2.914 * [taylor]: Taking taylor expansion of x in y
2.914 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ y x) 1) x)) in x
2.914 * [taylor]: Taking taylor expansion of 0.5 in x
2.914 * [taylor]: Taking taylor expansion of (* (- (/ y x) 1) x) in x
2.914 * [taylor]: Taking taylor expansion of (- (/ y x) 1) in x
2.914 * [taylor]: Taking taylor expansion of (/ y x) in x
2.914 * [taylor]: Taking taylor expansion of y in x
2.914 * [taylor]: Taking taylor expansion of x in x
2.914 * [taylor]: Taking taylor expansion of 1 in x
2.914 * [taylor]: Taking taylor expansion of x in x
2.914 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ y x) 1) x)) in x
2.914 * [taylor]: Taking taylor expansion of 0.5 in x
2.914 * [taylor]: Taking taylor expansion of (* (- (/ y x) 1) x) in x
2.914 * [taylor]: Taking taylor expansion of (- (/ y x) 1) in x
2.914 * [taylor]: Taking taylor expansion of (/ y x) in x
2.914 * [taylor]: Taking taylor expansion of y in x
2.914 * [taylor]: Taking taylor expansion of x in x
2.914 * [taylor]: Taking taylor expansion of 1 in x
2.915 * [taylor]: Taking taylor expansion of x in x
2.915 * [taylor]: Taking taylor expansion of 0 in y
2.915 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
2.915 * [taylor]: Taking taylor expansion of 0.5 in y
2.915 * [taylor]: Taking taylor expansion of y in y
2.915 * [taylor]: Taking taylor expansion of (neg 0.5) in y
2.915 * [taylor]: Taking taylor expansion of 0.5 in y
2.915 * [taylor]: Taking taylor expansion of 0 in y
2.916 * [taylor]: Taking taylor expansion of 0 in y
2.916 * [approximate]: Taking taylor expansion of (* -0.5 (* (- (/ y x) 1) x)) in (x y) around 0
2.916 * [taylor]: Taking taylor expansion of (* -0.5 (* (- (/ y x) 1) x)) in y
2.916 * [taylor]: Taking taylor expansion of -0.5 in y
2.916 * [taylor]: Taking taylor expansion of (* (- (/ y x) 1) x) in y
2.916 * [taylor]: Taking taylor expansion of (- (/ y x) 1) in y
2.916 * [taylor]: Taking taylor expansion of (/ y x) in y
2.916 * [taylor]: Taking taylor expansion of y in y
2.916 * [taylor]: Taking taylor expansion of x in y
2.916 * [taylor]: Taking taylor expansion of 1 in y
2.916 * [taylor]: Taking taylor expansion of x in y
2.916 * [taylor]: Taking taylor expansion of (* -0.5 (* (- (/ y x) 1) x)) in x
2.916 * [taylor]: Taking taylor expansion of -0.5 in x
2.916 * [taylor]: Taking taylor expansion of (* (- (/ y x) 1) x) in x
2.916 * [taylor]: Taking taylor expansion of (- (/ y x) 1) in x
2.916 * [taylor]: Taking taylor expansion of (/ y x) in x
2.916 * [taylor]: Taking taylor expansion of y in x
2.916 * [taylor]: Taking taylor expansion of x in x
2.916 * [taylor]: Taking taylor expansion of 1 in x
2.916 * [taylor]: Taking taylor expansion of x in x
2.916 * [taylor]: Taking taylor expansion of (* -0.5 (* (- (/ y x) 1) x)) in x
2.916 * [taylor]: Taking taylor expansion of -0.5 in x
2.916 * [taylor]: Taking taylor expansion of (* (- (/ y x) 1) x) in x
2.916 * [taylor]: Taking taylor expansion of (- (/ y x) 1) in x
2.916 * [taylor]: Taking taylor expansion of (/ y x) in x
2.916 * [taylor]: Taking taylor expansion of y in x
2.916 * [taylor]: Taking taylor expansion of x in x
2.916 * [taylor]: Taking taylor expansion of 1 in x
2.916 * [taylor]: Taking taylor expansion of x in x
2.917 * [taylor]: Taking taylor expansion of 0 in y
2.917 * [taylor]: Taking taylor expansion of (neg (* 0.5 y)) in y
2.917 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
2.917 * [taylor]: Taking taylor expansion of 0.5 in y
2.917 * [taylor]: Taking taylor expansion of y in y
2.917 * [taylor]: Taking taylor expansion of 0.5 in y
2.917 * [taylor]: Taking taylor expansion of 0 in y
2.918 * [taylor]: Taking taylor expansion of 0 in y
2.918 * * * [progress]: simplifying candidates
2.918 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (log (+ (/ x y) -1)) (+ (log x) (log 2.0)))
  (- (log (+ (/ x y) -1)) (log (* x 2.0)))
  (log (/ (+ (/ x y) -1) (* x 2.0)))
  (exp (/ (+ (/ x y) -1) (* x 2.0)))
  (/ (* (* (+ (/ x y) -1) (+ (/ x y) -1)) (+ (/ x y) -1)) (* (* (* x x) x) (* (* 2.0 2.0) 2.0)))
  (/ (* (* (+ (/ x y) -1) (+ (/ x y) -1)) (+ (/ x y) -1)) (* (* (* x 2.0) (* x 2.0)) (* x 2.0)))
  (* (cbrt (/ (+ (/ x y) -1) (* x 2.0))) (cbrt (/ (+ (/ x y) -1) (* x 2.0))))
  (cbrt (/ (+ (/ x y) -1) (* x 2.0)))
  (* (* (/ (+ (/ x y) -1) (* x 2.0)) (/ (+ (/ x y) -1) (* x 2.0))) (/ (+ (/ x y) -1) (* x 2.0)))
  (sqrt (/ (+ (/ x y) -1) (* x 2.0)))
  (sqrt (/ (+ (/ x y) -1) (* x 2.0)))
  (neg (+ (/ x y) -1))
  (neg (* x 2.0))
  (/ (* (cbrt (+ (/ x y) -1)) (cbrt (+ (/ x y) -1))) x)
  (/ (cbrt (+ (/ x y) -1)) 2.0)
  (/ (sqrt (+ (/ x y) -1)) x)
  (/ (sqrt (+ (/ x y) -1)) 2.0)
  (/ 1 x)
  (/ (+ (/ x y) -1) 2.0)
  (/ (+ (sqrt (/ x y)) 1) x)
  (/ (- (sqrt (/ x y)) 1) 2.0)
  (/ (+ (/ (sqrt x) (sqrt y)) 1) x)
  (/ (- (/ (sqrt x) (sqrt y)) 1) 2.0)
  (/ 1 x)
  (/ (+ (/ x y) -1) 2.0)
  (/ 1 (* x 2.0))
  (/ (* x 2.0) (+ (/ x y) -1))
  (/ (+ (/ x y) -1) x)
  (/ (* x 2.0) (cbrt (+ (/ x y) -1)))
  (/ (* x 2.0) (sqrt (+ (/ x y) -1)))
  (/ (* x 2.0) (+ (/ x y) -1))
  (/ (* x 2.0) (- (sqrt (/ x y)) 1))
  (/ (* x 2.0) (- (/ (sqrt x) (sqrt y)) 1))
  (/ (* x 2.0) (+ (/ x y) -1))
  (* (* x 2.0) (+ (* (/ x y) (/ x y)) (- (* -1 -1) (* (/ x y) -1))))
  (* (* x 2.0) (- (/ x y) -1))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (- (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
2.920 * * [simplify]: iteration  0 :  77  enodes  (cost  427 )
2.934 * * [simplify]: iteration  1 :  198  enodes  (cost  416 )
2.968 * * [simplify]: iteration  2 :  605  enodes  (cost  355 )
3.118 * * [simplify]: iteration  3 :  2145  enodes  (cost  351 )
3.535 * * [simplify]: iteration  done :  5000  enodes  (cost  351 )
3.536 * [simplify]: Simplified to:
   (log (/ (+ (/ x y) -1) (* x 2.0)))
  (log (/ (+ (/ x y) -1) (* x 2.0)))
  (log (/ (+ (/ x y) -1) (* x 2.0)))
  (exp (/ (+ (/ x y) -1) (* x 2.0)))
  (pow (/ (+ (/ x y) -1) (* x 2.0)) 3)
  (pow (/ (+ (/ x y) -1) (* x 2.0)) 3)
  (* (cbrt (/ (+ (/ x y) -1) (* x 2.0))) (cbrt (/ (+ (/ x y) -1) (* x 2.0))))
  (cbrt (/ (+ (/ x y) -1) (* x 2.0)))
  (pow (/ (+ (/ x y) -1) (* x 2.0)) 3)
  (sqrt (/ (+ (/ x y) -1) (* x 2.0)))
  (sqrt (/ (+ (/ x y) -1) (* x 2.0)))
  (- 1 (/ x y))
  (neg (* x 2.0))
  (/ (* (cbrt (+ (/ x y) -1)) (cbrt (+ (/ x y) -1))) x)
  (/ (cbrt (+ (/ x y) -1)) 2.0)
  (/ (sqrt (+ (/ x y) -1)) x)
  (/ (sqrt (+ (/ x y) -1)) 2.0)
  (/ 1 x)
  (/ (+ (/ x y) -1) 2.0)
  (/ (+ (sqrt (/ x y)) 1) x)
  (/ (- (sqrt (/ x y)) 1) 2.0)
  (/ (+ (/ (sqrt x) (sqrt y)) 1) x)
  (/ (- (/ (sqrt x) (sqrt y)) 1) 2.0)
  (/ 1 x)
  (/ (+ (/ x y) -1) 2.0)
  (/ 1 (* x 2.0))
  (/ (* x 2.0) (+ (/ x y) -1))
  (/ (+ (/ x y) -1) x)
  (/ (* x 2.0) (cbrt (+ (/ x y) -1)))
  (/ (* x 2.0) (sqrt (+ (/ x y) -1)))
  (/ (* x 2.0) (+ (/ x y) -1))
  (/ (* x 2.0) (- (sqrt (/ x y)) 1))
  (/ (* x 2.0) (- (/ (sqrt x) (sqrt y)) 1))
  (/ (* x 2.0) (+ (/ x y) -1))
  (* (+ 1 (* (/ x y) (- (/ x y) -1))) (* x 2.0))
  (* (+ (* (/ x y) 2.0) 2.0) x)
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
  (- (/ 0.5 y) (/ 0.5 x))
3.536 * * * [progress]: adding candidates to table
3.568 * [progress]: [Phase 3 of 3] Extracting.
3.568 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))> #<alt (λ (x y) (/ (+ (/ x y) -1) (* x 2.0)))> #<alt (λ (x y) (* (/ 1 (* x 2.0)) (/ (- x y) y)))>)
3.568 * * * [regime-changes]: Trying 2 branch expressions: (y x)
3.568 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))> #<alt (λ (x y) (/ (+ (/ x y) -1) (* x 2.0)))> #<alt (λ (x y) (* (/ 1 (* x 2.0)) (/ (- x y) y)))>)
3.605 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (- (/ 0.5 y) (/ 0.5 x)))> #<alt (λ (x y) (/ (+ (/ x y) -1) (* x 2.0)))> #<alt (λ (x y) (* (/ 1 (* x 2.0)) (/ (- x y) y)))>)
3.639 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
3.639 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (/ 0.5 y) (/ 0.5 x))
3.639 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
3.639 * * [simplify]: iteration  done :  6  enodes  (cost  7 )
3.639 * [simplify]: Simplified to:
   (- (/ 0.5 y) (/ 0.5 x))
4.445 * [regime-testing]: End program error score: 0.013501687710963871
4.513 * [regime-testing]: Target error score: 0.013501687710963871