9.666 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.019 * * * [progress]: [2/2] Setting up program.
0.022 * [progress]: [Phase 2 of 3] Improving.
0.022 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (+ x y) (+ y y))
0.022 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.023 * * [simplify]: iteration  1 :  8  enodes  (cost  7 )
0.024 * * [simplify]: iteration  2 :  11  enodes  (cost  7 )
0.025 * * [simplify]: iteration  3 :  13  enodes  (cost  7 )
0.026 * * [simplify]: iteration  done :  13  enodes  (cost  7 )
0.026 * [simplify]: Simplified to:
   (/ (+ x y) (+ y y))
0.027 * * [progress]: iteration 1 / 4
0.027 * * * [progress]: picking best candidate
0.029 * * * * [pick]: Picked  #<alt (λ (x y) (/ (+ x y) (+ y y)))>
0.029 * * * [progress]: localizing error
0.033 * * * [progress]: generating rewritten candidates
0.033 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.046 * * * [progress]: generating series expansions
0.046 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.046 * [approximate]: Taking taylor expansion of (* 1/2 (/ (+ x y) y)) in (x y) around 0
0.046 * [taylor]: Taking taylor expansion of (* 1/2 (/ (+ x y) y)) in y
0.046 * [taylor]: Taking taylor expansion of 1/2 in y
0.046 * [taylor]: Taking taylor expansion of (/ (+ x y) y) in y
0.046 * [taylor]: Taking taylor expansion of (+ x y) in y
0.046 * [taylor]: Taking taylor expansion of x in y
0.046 * [taylor]: Taking taylor expansion of y in y
0.046 * [taylor]: Taking taylor expansion of y in y
0.046 * [taylor]: Taking taylor expansion of (* 1/2 (/ (+ x y) y)) in x
0.046 * [taylor]: Taking taylor expansion of 1/2 in x
0.046 * [taylor]: Taking taylor expansion of (/ (+ x y) y) in x
0.046 * [taylor]: Taking taylor expansion of (+ x y) in x
0.046 * [taylor]: Taking taylor expansion of x in x
0.047 * [taylor]: Taking taylor expansion of y in x
0.047 * [taylor]: Taking taylor expansion of y in x
0.047 * [taylor]: Taking taylor expansion of (* 1/2 (/ (+ x y) y)) in x
0.047 * [taylor]: Taking taylor expansion of 1/2 in x
0.047 * [taylor]: Taking taylor expansion of (/ (+ x y) y) in x
0.047 * [taylor]: Taking taylor expansion of (+ x y) in x
0.047 * [taylor]: Taking taylor expansion of x in x
0.047 * [taylor]: Taking taylor expansion of y in x
0.047 * [taylor]: Taking taylor expansion of y in x
0.047 * [taylor]: Taking taylor expansion of 1/2 in y
0.047 * [taylor]: Taking taylor expansion of (* 1/2 (/ 1 y)) in y
0.047 * [taylor]: Taking taylor expansion of 1/2 in y
0.047 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.047 * [taylor]: Taking taylor expansion of y in y
0.047 * [taylor]: Taking taylor expansion of 0 in y
0.048 * [taylor]: Taking taylor expansion of 0 in y
0.048 * [taylor]: Taking taylor expansion of 0 in y
0.048 * [approximate]: Taking taylor expansion of (* 1/2 (* (+ (/ 1 x) (/ 1 y)) y)) in (x y) around 0
0.048 * [taylor]: Taking taylor expansion of (* 1/2 (* (+ (/ 1 x) (/ 1 y)) y)) in y
0.048 * [taylor]: Taking taylor expansion of 1/2 in y
0.048 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) y) in y
0.048 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in y
0.048 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.048 * [taylor]: Taking taylor expansion of x in y
0.048 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.048 * [taylor]: Taking taylor expansion of y in y
0.048 * [taylor]: Taking taylor expansion of y in y
0.048 * [taylor]: Taking taylor expansion of (* 1/2 (* (+ (/ 1 x) (/ 1 y)) y)) in x
0.048 * [taylor]: Taking taylor expansion of 1/2 in x
0.048 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) y) in x
0.048 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
0.048 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.048 * [taylor]: Taking taylor expansion of x in x
0.048 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.048 * [taylor]: Taking taylor expansion of y in x
0.048 * [taylor]: Taking taylor expansion of y in x
0.048 * [taylor]: Taking taylor expansion of (* 1/2 (* (+ (/ 1 x) (/ 1 y)) y)) in x
0.049 * [taylor]: Taking taylor expansion of 1/2 in x
0.049 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) y) in x
0.049 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
0.049 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.049 * [taylor]: Taking taylor expansion of x in x
0.049 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.049 * [taylor]: Taking taylor expansion of y in x
0.049 * [taylor]: Taking taylor expansion of y in x
0.049 * [taylor]: Taking taylor expansion of (* 1/2 y) in y
0.049 * [taylor]: Taking taylor expansion of 1/2 in y
0.049 * [taylor]: Taking taylor expansion of y in y
0.049 * [taylor]: Taking taylor expansion of 1/2 in y
0.049 * [taylor]: Taking taylor expansion of 0 in y
0.050 * [taylor]: Taking taylor expansion of 0 in y
0.050 * [taylor]: Taking taylor expansion of 0 in y
0.050 * [approximate]: Taking taylor expansion of (* 1/2 (* (+ (/ 1 x) (/ 1 y)) y)) in (x y) around 0
0.050 * [taylor]: Taking taylor expansion of (* 1/2 (* (+ (/ 1 x) (/ 1 y)) y)) in y
0.050 * [taylor]: Taking taylor expansion of 1/2 in y
0.050 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) y) in y
0.050 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in y
0.050 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.050 * [taylor]: Taking taylor expansion of x in y
0.050 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.050 * [taylor]: Taking taylor expansion of y in y
0.050 * [taylor]: Taking taylor expansion of y in y
0.051 * [taylor]: Taking taylor expansion of (* 1/2 (* (+ (/ 1 x) (/ 1 y)) y)) in x
0.051 * [taylor]: Taking taylor expansion of 1/2 in x
0.051 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) y) in x
0.051 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
0.051 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.051 * [taylor]: Taking taylor expansion of x in x
0.051 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.051 * [taylor]: Taking taylor expansion of y in x
0.051 * [taylor]: Taking taylor expansion of y in x
0.051 * [taylor]: Taking taylor expansion of (* 1/2 (* (+ (/ 1 x) (/ 1 y)) y)) in x
0.051 * [taylor]: Taking taylor expansion of 1/2 in x
0.051 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) y) in x
0.051 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
0.051 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.051 * [taylor]: Taking taylor expansion of x in x
0.051 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.051 * [taylor]: Taking taylor expansion of y in x
0.051 * [taylor]: Taking taylor expansion of y in x
0.051 * [taylor]: Taking taylor expansion of (* 1/2 y) in y
0.051 * [taylor]: Taking taylor expansion of 1/2 in y
0.051 * [taylor]: Taking taylor expansion of y in y
0.051 * [taylor]: Taking taylor expansion of 1/2 in y
0.051 * [taylor]: Taking taylor expansion of 0 in y
0.052 * [taylor]: Taking taylor expansion of 0 in y
0.052 * [taylor]: Taking taylor expansion of 0 in y
0.052 * * * [progress]: simplifying candidates
0.053 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (log (+ x y)) (log (+ y y)))
  (log (/ (+ x y) (+ y y)))
  (exp (/ (+ x y) (+ y y)))
  (/ (* (* (+ x y) (+ x y)) (+ x y)) (* (* (+ y y) (+ y y)) (+ y y)))
  (* (cbrt (/ (+ x y) (+ y y))) (cbrt (/ (+ x y) (+ y y))))
  (cbrt (/ (+ x y) (+ y y)))
  (* (* (/ (+ x y) (+ y y)) (/ (+ x y) (+ y y))) (/ (+ x y) (+ y y)))
  (sqrt (/ (+ x y) (+ y y)))
  (sqrt (/ (+ x y) (+ y y)))
  (neg (+ x y))
  (neg (+ y y))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (* (cbrt (+ y y)) (cbrt (+ y y))))
  (/ (cbrt (+ x y)) (cbrt (+ y y)))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (sqrt (+ y y)))
  (/ (cbrt (+ x y)) (sqrt (+ y y)))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) 1)
  (/ (cbrt (+ x y)) (+ y y))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (* (cbrt y) (cbrt y)))
  (/ (cbrt (+ x y)) (+ (cbrt y) (cbrt y)))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (sqrt y))
  (/ (cbrt (+ x y)) (+ (sqrt y) (sqrt y)))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) 1)
  (/ (cbrt (+ x y)) (+ y y))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (cbrt y))
  (/ (cbrt (+ x y)) (+ (* (cbrt y) (cbrt y)) (* (cbrt y) (cbrt y))))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (sqrt y))
  (/ (cbrt (+ x y)) (+ (sqrt y) (sqrt y)))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) y)
  (/ (cbrt (+ x y)) (+ 1 1))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (+ 1 1))
  (/ (cbrt (+ x y)) y)
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (+ 1 1))
  (/ (cbrt (+ x y)) y)
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) 2)
  (/ (cbrt (+ x y)) y)
  (/ (sqrt (+ x y)) (* (cbrt (+ y y)) (cbrt (+ y y))))
  (/ (sqrt (+ x y)) (cbrt (+ y y)))
  (/ (sqrt (+ x y)) (sqrt (+ y y)))
  (/ (sqrt (+ x y)) (sqrt (+ y y)))
  (/ (sqrt (+ x y)) 1)
  (/ (sqrt (+ x y)) (+ y y))
  (/ (sqrt (+ x y)) (* (cbrt y) (cbrt y)))
  (/ (sqrt (+ x y)) (+ (cbrt y) (cbrt y)))
  (/ (sqrt (+ x y)) (sqrt y))
  (/ (sqrt (+ x y)) (+ (sqrt y) (sqrt y)))
  (/ (sqrt (+ x y)) 1)
  (/ (sqrt (+ x y)) (+ y y))
  (/ (sqrt (+ x y)) (cbrt y))
  (/ (sqrt (+ x y)) (+ (* (cbrt y) (cbrt y)) (* (cbrt y) (cbrt y))))
  (/ (sqrt (+ x y)) (sqrt y))
  (/ (sqrt (+ x y)) (+ (sqrt y) (sqrt y)))
  (/ (sqrt (+ x y)) y)
  (/ (sqrt (+ x y)) (+ 1 1))
  (/ (sqrt (+ x y)) (+ 1 1))
  (/ (sqrt (+ x y)) y)
  (/ (sqrt (+ x y)) (+ 1 1))
  (/ (sqrt (+ x y)) y)
  (/ (sqrt (+ x y)) 2)
  (/ (sqrt (+ x y)) y)
  (/ 1 (* (cbrt (+ y y)) (cbrt (+ y y))))
  (/ (+ x y) (cbrt (+ y y)))
  (/ 1 (sqrt (+ y y)))
  (/ (+ x y) (sqrt (+ y y)))
  (/ 1 1)
  (/ (+ x y) (+ y y))
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (+ x y) (+ (cbrt y) (cbrt y)))
  (/ 1 (sqrt y))
  (/ (+ x y) (+ (sqrt y) (sqrt y)))
  (/ 1 1)
  (/ (+ x y) (+ y y))
  (/ 1 (cbrt y))
  (/ (+ x y) (+ (* (cbrt y) (cbrt y)) (* (cbrt y) (cbrt y))))
  (/ 1 (sqrt y))
  (/ (+ x y) (+ (sqrt y) (sqrt y)))
  (/ 1 y)
  (/ (+ x y) (+ 1 1))
  (/ 1 (+ 1 1))
  (/ (+ x y) y)
  (/ 1 (+ 1 1))
  (/ (+ x y) y)
  (/ 1 2)
  (/ (+ x y) y)
  (/ 1 (* (cbrt (+ y y)) (cbrt (+ y y))))
  (/ (+ x y) (cbrt (+ y y)))
  (/ 1 (sqrt (+ y y)))
  (/ (+ x y) (sqrt (+ y y)))
  (/ 1 1)
  (/ (+ x y) (+ y y))
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (+ x y) (+ (cbrt y) (cbrt y)))
  (/ 1 (sqrt y))
  (/ (+ x y) (+ (sqrt y) (sqrt y)))
  (/ 1 1)
  (/ (+ x y) (+ y y))
  (/ 1 (cbrt y))
  (/ (+ x y) (+ (* (cbrt y) (cbrt y)) (* (cbrt y) (cbrt y))))
  (/ 1 (sqrt y))
  (/ (+ x y) (+ (sqrt y) (sqrt y)))
  (/ 1 y)
  (/ (+ x y) (+ 1 1))
  (/ 1 (+ 1 1))
  (/ (+ x y) y)
  (/ 1 (+ 1 1))
  (/ (+ x y) y)
  (/ 1 2)
  (/ (+ x y) y)
  (/ 1 (+ y y))
  (/ (+ y y) (+ x y))
  (/ (+ x y) (* (cbrt (+ y y)) (cbrt (+ y y))))
  (/ (+ x y) (sqrt (+ y y)))
  (/ (+ x y) 1)
  (/ (+ x y) (* (cbrt y) (cbrt y)))
  (/ (+ x y) (sqrt y))
  (/ (+ x y) 1)
  (/ (+ x y) (cbrt y))
  (/ (+ x y) (sqrt y))
  (/ (+ x y) y)
  (/ (+ x y) (+ 1 1))
  (/ (+ x y) (+ 1 1))
  (/ (+ x y) 2)
  (/ (+ y y) (cbrt (+ x y)))
  (/ (+ y y) (sqrt (+ x y)))
  (/ (+ y y) (+ x y))
  (/ (+ y y) (+ x y))
  (/ (+ x y) (+ (pow y 3) (pow y 3)))
  (/ (+ x y) (- (* y y) (* y y)))
  (* (+ y y) (+ (* x x) (- (* y y) (* x y))))
  (* (+ y y) (- x y))
  (+ (* 1/2 (/ x y)) 1/2)
  (+ 1/2 (* 1/2 (/ x y)))
  (+ 1/2 (* 1/2 (/ x y)))
0.057 * * [simplify]: iteration  0 :  113  enodes  (cost  1073 )
0.072 * * [simplify]: iteration  1 :  226  enodes  (cost  982 )
0.108 * * [simplify]: iteration  2 :  575  enodes  (cost  945 )
0.230 * * [simplify]: iteration  3 :  1738  enodes  (cost  943 )
0.606 * * [simplify]: iteration  done :  5000  enodes  (cost  943 )
0.606 * [simplify]: Simplified to:
   (log (/ (+ x y) (+ y y)))
  (log (/ (+ x y) (+ y y)))
  (exp (/ (+ x y) (+ y y)))
  (pow (/ (+ x y) (+ y y)) 3)
  (* (cbrt (/ (+ x y) (+ y y))) (cbrt (/ (+ x y) (+ y y))))
  (cbrt (/ (+ x y) (+ y y)))
  (pow (/ (+ x y) (+ y y)) 3)
  (sqrt (/ (+ x y) (+ y y)))
  (sqrt (/ (+ x y) (+ y y)))
  (neg (+ x y))
  (* -2 y)
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (* (cbrt (+ y y)) (cbrt (+ y y))))
  (/ (cbrt (+ x y)) (cbrt (+ y y)))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (sqrt (+ y y)))
  (/ (cbrt (+ x y)) (sqrt (+ y y)))
  (* (cbrt (+ x y)) (cbrt (+ x y)))
  (/ (cbrt (+ x y)) (+ y y))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (* (cbrt y) (cbrt y)))
  (/ (cbrt (+ x y)) (* 2 (cbrt y)))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (sqrt y))
  (/ (cbrt (+ x y)) (* 2 (sqrt y)))
  (* (cbrt (+ x y)) (cbrt (+ x y)))
  (/ (cbrt (+ x y)) (+ y y))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (cbrt y))
  (/ (cbrt (+ x y)) (* 2 (* (cbrt y) (cbrt y))))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (sqrt y))
  (/ (cbrt (+ x y)) (* 2 (sqrt y)))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) y)
  (/ (cbrt (+ x y)) 2)
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) 2)
  (/ (cbrt (+ x y)) y)
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) 2)
  (/ (cbrt (+ x y)) y)
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) 2)
  (/ (cbrt (+ x y)) y)
  (/ (sqrt (+ x y)) (* (cbrt (+ y y)) (cbrt (+ y y))))
  (/ (sqrt (+ x y)) (cbrt (+ y y)))
  (/ (sqrt (+ x y)) (sqrt (+ y y)))
  (/ (sqrt (+ x y)) (sqrt (+ y y)))
  (sqrt (+ x y))
  (/ (sqrt (+ x y)) (+ y y))
  (/ (sqrt (+ x y)) (* (cbrt y) (cbrt y)))
  (/ (sqrt (+ x y)) (* 2 (cbrt y)))
  (/ (sqrt (+ x y)) (sqrt y))
  (/ (sqrt (+ x y)) (* 2 (sqrt y)))
  (sqrt (+ x y))
  (/ (sqrt (+ x y)) (+ y y))
  (/ (sqrt (+ x y)) (cbrt y))
  (/ (sqrt (+ x y)) (* 2 (* (cbrt y) (cbrt y))))
  (/ (sqrt (+ x y)) (sqrt y))
  (/ (sqrt (+ x y)) (* 2 (sqrt y)))
  (/ (sqrt (+ x y)) y)
  (/ (sqrt (+ x y)) 2)
  (/ (sqrt (+ x y)) 2)
  (/ (sqrt (+ x y)) y)
  (/ (sqrt (+ x y)) 2)
  (/ (sqrt (+ x y)) y)
  (/ (sqrt (+ x y)) 2)
  (/ (sqrt (+ x y)) y)
  (/ 1 (* (cbrt (+ y y)) (cbrt (+ y y))))
  (/ (+ x y) (cbrt (+ y y)))
  (/ 1 (sqrt (+ y y)))
  (/ (+ x y) (sqrt (+ y y)))
  1
  (/ (+ x y) (+ y y))
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (+ x y) (* 2 (cbrt y)))
  (/ 1 (sqrt y))
  (/ (+ x y) (* 2 (sqrt y)))
  1
  (/ (+ x y) (+ y y))
  (/ 1 (cbrt y))
  (/ (+ x y) (* 2 (* (cbrt y) (cbrt y))))
  (/ 1 (sqrt y))
  (/ (+ x y) (* 2 (sqrt y)))
  (/ 1 y)
  (/ (+ x y) 2)
  1/2
  (/ (+ x y) y)
  1/2
  (/ (+ x y) y)
  1/2
  (/ (+ x y) y)
  (/ 1 (* (cbrt (+ y y)) (cbrt (+ y y))))
  (/ (+ x y) (cbrt (+ y y)))
  (/ 1 (sqrt (+ y y)))
  (/ (+ x y) (sqrt (+ y y)))
  1
  (/ (+ x y) (+ y y))
  (/ 1 (* (cbrt y) (cbrt y)))
  (/ (+ x y) (* 2 (cbrt y)))
  (/ 1 (sqrt y))
  (/ (+ x y) (* 2 (sqrt y)))
  1
  (/ (+ x y) (+ y y))
  (/ 1 (cbrt y))
  (/ (+ x y) (* 2 (* (cbrt y) (cbrt y))))
  (/ 1 (sqrt y))
  (/ (+ x y) (* 2 (sqrt y)))
  (/ 1 y)
  (/ (+ x y) 2)
  1/2
  (/ (+ x y) y)
  1/2
  (/ (+ x y) y)
  1/2
  (/ (+ x y) y)
  (/ 1/2 y)
  (* y (/ 2 (+ x y)))
  (/ (+ x y) (* (cbrt (+ y y)) (cbrt (+ y y))))
  (/ (+ x y) (sqrt (+ y y)))
  (+ x y)
  (/ (+ x y) (* (cbrt y) (cbrt y)))
  (/ (+ x y) (sqrt y))
  (+ x y)
  (/ (+ x y) (cbrt y))
  (/ (+ x y) (sqrt y))
  (/ (+ x y) y)
  (/ (+ x y) 2)
  (/ (+ x y) 2)
  (/ (+ x y) 2)
  (/ (+ y y) (cbrt (+ x y)))
  (/ (+ y y) (sqrt (+ x y)))
  (* y (/ 2 (+ x y)))
  (* y (/ 2 (+ x y)))
  (/ (+ x y) (* 2 (pow y 3)))
  (/ (+ x y) 0)
  (* (+ (* y (- y x)) (* x x)) (+ y y))
  (* (+ y y) (- x y))
  (+ 1/2 (* 1/2 (/ x y)))
  (+ 1/2 (* 1/2 (/ x y)))
  (+ 1/2 (* 1/2 (/ x y)))
0.607 * * * [progress]: adding candidates to table
0.665 * * [progress]: iteration 2 / 4
0.665 * * * [progress]: picking best candidate
0.667 * * * * [pick]: Picked  #<alt (λ (x y) (+ 1/2 (* 1/2 (/ x y))))>
0.667 * * * [progress]: localizing error
0.672 * * * [progress]: generating rewritten candidates
0.672 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.680 * * * [progress]: generating series expansions
0.680 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.680 * [approximate]: Taking taylor expansion of (* 1/2 (/ x y)) in (x y) around 0
0.680 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.680 * [taylor]: Taking taylor expansion of 1/2 in y
0.680 * [taylor]: Taking taylor expansion of (/ x y) in y
0.680 * [taylor]: Taking taylor expansion of x in y
0.680 * [taylor]: Taking taylor expansion of y in y
0.680 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.680 * [taylor]: Taking taylor expansion of 1/2 in x
0.680 * [taylor]: Taking taylor expansion of (/ x y) in x
0.680 * [taylor]: Taking taylor expansion of x in x
0.680 * [taylor]: Taking taylor expansion of y in x
0.680 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.680 * [taylor]: Taking taylor expansion of 1/2 in x
0.680 * [taylor]: Taking taylor expansion of (/ x y) in x
0.680 * [taylor]: Taking taylor expansion of x in x
0.681 * [taylor]: Taking taylor expansion of y in x
0.681 * [taylor]: Taking taylor expansion of (/ 1/2 y) in y
0.681 * [taylor]: Taking taylor expansion of 1/2 in y
0.681 * [taylor]: Taking taylor expansion of y in y
0.681 * [taylor]: Taking taylor expansion of 0 in y
0.681 * [taylor]: Taking taylor expansion of 0 in y
0.681 * [taylor]: Taking taylor expansion of 0 in y
0.681 * [approximate]: Taking taylor expansion of (* 1/2 (/ y x)) in (x y) around 0
0.681 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
0.681 * [taylor]: Taking taylor expansion of 1/2 in y
0.681 * [taylor]: Taking taylor expansion of (/ y x) in y
0.681 * [taylor]: Taking taylor expansion of y in y
0.682 * [taylor]: Taking taylor expansion of x in y
0.682 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in x
0.682 * [taylor]: Taking taylor expansion of 1/2 in x
0.682 * [taylor]: Taking taylor expansion of (/ y x) in x
0.682 * [taylor]: Taking taylor expansion of y in x
0.682 * [taylor]: Taking taylor expansion of x in x
0.682 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in x
0.682 * [taylor]: Taking taylor expansion of 1/2 in x
0.682 * [taylor]: Taking taylor expansion of (/ y x) in x
0.682 * [taylor]: Taking taylor expansion of y in x
0.682 * [taylor]: Taking taylor expansion of x in x
0.682 * [taylor]: Taking taylor expansion of (* 1/2 y) in y
0.682 * [taylor]: Taking taylor expansion of 1/2 in y
0.682 * [taylor]: Taking taylor expansion of y in y
0.682 * [taylor]: Taking taylor expansion of 0 in y
0.682 * [taylor]: Taking taylor expansion of 0 in y
0.682 * [taylor]: Taking taylor expansion of 0 in y
0.682 * [approximate]: Taking taylor expansion of (* 1/2 (/ y x)) in (x y) around 0
0.682 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
0.683 * [taylor]: Taking taylor expansion of 1/2 in y
0.683 * [taylor]: Taking taylor expansion of (/ y x) in y
0.683 * [taylor]: Taking taylor expansion of y in y
0.683 * [taylor]: Taking taylor expansion of x in y
0.683 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in x
0.683 * [taylor]: Taking taylor expansion of 1/2 in x
0.683 * [taylor]: Taking taylor expansion of (/ y x) in x
0.683 * [taylor]: Taking taylor expansion of y in x
0.683 * [taylor]: Taking taylor expansion of x in x
0.683 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in x
0.683 * [taylor]: Taking taylor expansion of 1/2 in x
0.683 * [taylor]: Taking taylor expansion of (/ y x) in x
0.683 * [taylor]: Taking taylor expansion of y in x
0.683 * [taylor]: Taking taylor expansion of x in x
0.683 * [taylor]: Taking taylor expansion of (* 1/2 y) in y
0.683 * [taylor]: Taking taylor expansion of 1/2 in y
0.683 * [taylor]: Taking taylor expansion of y in y
0.683 * [taylor]: Taking taylor expansion of 0 in y
0.683 * [taylor]: Taking taylor expansion of 0 in y
0.683 * [taylor]: Taking taylor expansion of 0 in y
0.683 * * * [progress]: simplifying candidates
0.684 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* 1/2 (/ x y))
  (+ (log 1/2) (- (log x) (log y)))
  (+ (log 1/2) (log (/ x y)))
  (log (* 1/2 (/ x y)))
  (exp (* 1/2 (/ x y)))
  (* (* (* 1/2 1/2) 1/2) (/ (* (* x x) x) (* (* y y) y)))
  (* (* (* 1/2 1/2) 1/2) (* (* (/ x y) (/ x y)) (/ x y)))
  (* (cbrt (* 1/2 (/ x y))) (cbrt (* 1/2 (/ x y))))
  (cbrt (* 1/2 (/ x y)))
  (* (* (* 1/2 (/ x y)) (* 1/2 (/ x y))) (* 1/2 (/ x y)))
  (sqrt (* 1/2 (/ x y)))
  (sqrt (* 1/2 (/ x y)))
  (* (sqrt 1/2) (sqrt (/ x y)))
  (* (sqrt 1/2) (sqrt (/ x y)))
  (* (sqrt 1/2) (/ (sqrt x) (sqrt y)))
  (* (sqrt 1/2) (/ (sqrt x) (sqrt y)))
  (* 1/2 (* (cbrt (/ x y)) (cbrt (/ x y))))
  (* 1/2 (sqrt (/ x y)))
  (* 1/2 (/ (* (cbrt x) (cbrt x)) (* (cbrt y) (cbrt y))))
  (* 1/2 (/ (* (cbrt x) (cbrt x)) (sqrt y)))
  (* 1/2 (/ (* (cbrt x) (cbrt x)) 1))
  (* 1/2 (/ (sqrt x) (* (cbrt y) (cbrt y))))
  (* 1/2 (/ (sqrt x) (sqrt y)))
  (* 1/2 (/ (sqrt x) 1))
  (* 1/2 (/ 1 (* (cbrt y) (cbrt y))))
  (* 1/2 (/ 1 (sqrt y)))
  (* 1/2 (/ 1 1))
  (* 1/2 1)
  (* 1/2 x)
  (* (cbrt 1/2) (/ x y))
  (* (sqrt 1/2) (/ x y))
  (* 1/2 (/ x y))
  (* 1/2 x)
  (* 1/2 (/ x y))
  (* 1/2 (/ x y))
  (* 1/2 (/ x y))
0.686 * * [simplify]: iteration  0 :  68  enodes  (cost  277 )
0.695 * * [simplify]: iteration  1 :  167  enodes  (cost  256 )
0.719 * * [simplify]: iteration  2 :  459  enodes  (cost  232 )
0.840 * * [simplify]: iteration  3 :  1307  enodes  (cost  229 )
1.209 * * [simplify]: iteration  4 :  3488  enodes  (cost  229 )
1.659 * * [simplify]: iteration  done :  5000  enodes  (cost  229 )
1.659 * [simplify]: Simplified to:
   (* 1/2 (/ x y))
  (log (* 1/2 (/ x y)))
  (log (* 1/2 (/ x y)))
  (log (* 1/2 (/ x y)))
  (sqrt (exp (/ x y)))
  (pow (* 1/2 (/ x y)) 3)
  (pow (* 1/2 (/ x y)) 3)
  (* (cbrt (* 1/2 (/ x y))) (cbrt (* 1/2 (/ x y))))
  (cbrt (* 1/2 (/ x y)))
  (pow (* 1/2 (/ x y)) 3)
  (sqrt (* 1/2 (/ x y)))
  (sqrt (* 1/2 (/ x y)))
  (* (sqrt 1/2) (sqrt (/ x y)))
  (* (sqrt 1/2) (sqrt (/ x y)))
  (* (sqrt 1/2) (/ (sqrt x) (sqrt y)))
  (* (sqrt 1/2) (/ (sqrt x) (sqrt y)))
  (* 1/2 (* (cbrt (/ x y)) (cbrt (/ x y))))
  (* 1/2 (sqrt (/ x y)))
  (* (/ (* 1/2 (cbrt x)) (* (cbrt y) (cbrt y))) (cbrt x))
  (* (* 1/2 (/ (cbrt x) (sqrt y))) (cbrt x))
  (* 1/2 (* (cbrt x) (cbrt x)))
  (* 1/2 (/ (sqrt x) (* (cbrt y) (cbrt y))))
  (* 1/2 (/ (sqrt x) (sqrt y)))
  (* 1/2 (sqrt x))
  (/ 1/2 (* (cbrt y) (cbrt y)))
  (/ 1/2 (sqrt y))
  1/2
  1/2
  (* 1/2 x)
  (* (cbrt 1/2) (/ x y))
  (* (sqrt 1/2) (/ x y))
  (* 1/2 (/ x y))
  (* 1/2 x)
  (* 1/2 (/ x y))
  (* 1/2 (/ x y))
  (* 1/2 (/ x y))
1.659 * * * [progress]: adding candidates to table
1.697 * [progress]: [Phase 3 of 3] Extracting.
1.699 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (+ 1/2 (* 1/2 (/ x y)))
1.700 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
1.700 * * [simplify]: iteration  1 :  8  enodes  (cost  7 )
1.700 * * [simplify]: iteration  done :  8  enodes  (cost  7 )
1.700 * [simplify]: Simplified to:
   (+ 1/2 (* 1/2 (/ x y)))
2.369 * [regime-testing]: End program error score: 0.02576415337432808
2.435 * [regime-testing]: Target error score: 0.02576415337432808