23.119 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.023 * * * [progress]: [2/2] Setting up program.
0.026 * [progress]: [Phase 2 of 3] Improving.
0.026 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (sqrt (+ (* x x) y))
0.027 * * [simplify]: iteration  0 :  5  enodes  (cost  6 )
0.027 * * [simplify]: iteration  1 :  6  enodes  (cost  6 )
0.028 * * [simplify]: iteration  done :  6  enodes  (cost  6 )
0.028 * [simplify]: Simplified to:
   (sqrt (+ (* x x) y))
0.028 * * [progress]: iteration 1 / 4
0.028 * * * [progress]: picking best candidate
0.030 * * * * [pick]: Picked  #<alt (λ (x y) (sqrt (+ (* x x) y)))>
0.030 * * * [progress]: localizing error
0.035 * * * [progress]: generating rewritten candidates
0.035 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.039 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
0.044 * * * [progress]: generating series expansions
0.044 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.044 * [approximate]: Taking taylor expansion of (sqrt (+ y (pow x 2))) in (x y) around 0
0.044 * [taylor]: Taking taylor expansion of (sqrt (+ y (pow x 2))) in y
0.044 * [taylor]: Taking taylor expansion of (+ y (pow x 2)) in y
0.044 * [taylor]: Taking taylor expansion of y in y
0.044 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.044 * [taylor]: Taking taylor expansion of x in y
0.045 * [taylor]: Taking taylor expansion of (sqrt (+ y (pow x 2))) in x
0.045 * [taylor]: Taking taylor expansion of (+ y (pow x 2)) in x
0.045 * [taylor]: Taking taylor expansion of y in x
0.045 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.045 * [taylor]: Taking taylor expansion of x in x
0.045 * [taylor]: Taking taylor expansion of (sqrt (+ y (pow x 2))) in x
0.045 * [taylor]: Taking taylor expansion of (+ y (pow x 2)) in x
0.045 * [taylor]: Taking taylor expansion of y in x
0.045 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.045 * [taylor]: Taking taylor expansion of x in x
0.045 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.045 * [taylor]: Taking taylor expansion of y in y
0.045 * [taylor]: Taking taylor expansion of 0 in y
0.045 * [taylor]: Taking taylor expansion of (* 1/2 (sqrt (/ 1 y))) in y
0.045 * [taylor]: Taking taylor expansion of 1/2 in y
0.045 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.045 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.045 * [taylor]: Taking taylor expansion of y in y
0.046 * [approximate]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.046 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in y
0.046 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.046 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.046 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.046 * [taylor]: Taking taylor expansion of x in y
0.046 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.046 * [taylor]: Taking taylor expansion of y in y
0.046 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.046 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.046 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.046 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.046 * [taylor]: Taking taylor expansion of x in x
0.046 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.046 * [taylor]: Taking taylor expansion of y in x
0.046 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.046 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.046 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.046 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.047 * [taylor]: Taking taylor expansion of x in x
0.047 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.047 * [taylor]: Taking taylor expansion of y in x
0.047 * [taylor]: Taking taylor expansion of 1 in y
0.047 * [taylor]: Taking taylor expansion of 0 in y
0.047 * [taylor]: Taking taylor expansion of (/ 1/2 y) in y
0.047 * [taylor]: Taking taylor expansion of 1/2 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 (/ -1/8 (pow y 2)) in y
0.048 * [taylor]: Taking taylor expansion of -1/8 in y
0.048 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.048 * [taylor]: Taking taylor expansion of y in y
0.048 * [approximate]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.048 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in y
0.048 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.048 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.048 * [taylor]: Taking taylor expansion of (pow x 2) 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 (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.048 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.048 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.048 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.048 * [taylor]: Taking taylor expansion of x in x
0.048 * [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 (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.049 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.049 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.049 * [taylor]: Taking taylor expansion of (pow x 2) 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 1 in y
0.049 * [taylor]: Taking taylor expansion of 0 in y
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 0 in y
0.050 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.050 * [taylor]: Taking taylor expansion of -1/8 in y
0.050 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.050 * [taylor]: Taking taylor expansion of y in y
0.050 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
0.050 * [approximate]: Taking taylor expansion of (+ y (pow x 2)) in (x y) around 0
0.050 * [taylor]: Taking taylor expansion of (+ y (pow x 2)) in y
0.050 * [taylor]: Taking taylor expansion of y in y
0.050 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.050 * [taylor]: Taking taylor expansion of x in y
0.050 * [taylor]: Taking taylor expansion of (+ y (pow x 2)) in x
0.050 * [taylor]: Taking taylor expansion of y in x
0.050 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.050 * [taylor]: Taking taylor expansion of x in x
0.050 * [taylor]: Taking taylor expansion of (+ y (pow x 2)) in x
0.050 * [taylor]: Taking taylor expansion of y in x
0.050 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.050 * [taylor]: Taking taylor expansion of x in x
0.051 * [taylor]: Taking taylor expansion of y in y
0.051 * [taylor]: Taking taylor expansion of 0 in y
0.051 * [taylor]: Taking taylor expansion of 1 in y
0.051 * [taylor]: Taking taylor expansion of 0 in y
0.051 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.051 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.051 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.051 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.051 * [taylor]: Taking taylor expansion of x in y
0.051 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.051 * [taylor]: Taking taylor expansion of y in y
0.051 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.051 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.051 * [taylor]: Taking taylor expansion of (pow x 2) 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 (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.051 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.051 * [taylor]: Taking taylor expansion of (pow x 2) 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
0.052 * [taylor]: Taking taylor expansion of 1 in y
0.052 * [taylor]: Taking taylor expansion of 0 in y
0.052 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.052 * [taylor]: Taking taylor expansion of y in y
0.052 * [taylor]: Taking taylor expansion of 0 in y
0.052 * [taylor]: Taking taylor expansion of 0 in y
0.052 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.052 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.053 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.053 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.053 * [taylor]: Taking taylor expansion of x in y
0.053 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.053 * [taylor]: Taking taylor expansion of y in y
0.053 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.053 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.053 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.053 * [taylor]: Taking taylor expansion of x in x
0.053 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.053 * [taylor]: Taking taylor expansion of y in x
0.053 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.053 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.053 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.053 * [taylor]: Taking taylor expansion of x in x
0.053 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.053 * [taylor]: Taking taylor expansion of y in x
0.053 * [taylor]: Taking taylor expansion of 1 in y
0.053 * [taylor]: Taking taylor expansion of 0 in y
0.053 * [taylor]: Taking taylor expansion of (neg (/ 1 y)) in y
0.053 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.053 * [taylor]: Taking taylor expansion of y in y
0.054 * [taylor]: Taking taylor expansion of 0 in y
0.054 * [taylor]: Taking taylor expansion of 0 in y
0.054 * * * [progress]: simplifying candidates
0.054 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (log (sqrt (+ (* x x) y)))
  (exp (sqrt (+ (* x x) y)))
  (* (cbrt (sqrt (+ (* x x) y))) (cbrt (sqrt (+ (* x x) y))))
  (cbrt (sqrt (+ (* x x) y)))
  (* (* (sqrt (+ (* x x) y)) (sqrt (+ (* x x) y))) (sqrt (+ (* x x) y)))
  (sqrt (* (cbrt (+ (* x x) y)) (cbrt (+ (* x x) y))))
  (sqrt (cbrt (+ (* x x) y)))
  (sqrt (sqrt (+ (* x x) y)))
  (sqrt (sqrt (+ (* x x) y)))
  (sqrt 1)
  (sqrt (+ (* x x) y))
  (sqrt (+ (pow (* x x) 3) (pow y 3)))
  (sqrt (+ (* (* x x) (* x x)) (- (* y y) (* (* x x) y))))
  (sqrt (- (* (* x x) (* x x)) (* y y)))
  (sqrt (- (* x x) y))
  (/ 1 2)
  (sqrt (sqrt (+ (* x x) y)))
  (sqrt (sqrt (+ (* x x) y)))
  (* (exp (* x x)) (exp y))
  (log (+ (* x x) y))
  (exp (+ (* x x) y))
  (* (cbrt (+ (* x x) y)) (cbrt (+ (* x x) y)))
  (cbrt (+ (* x x) y))
  (* (* (+ (* x x) y) (+ (* x x) y)) (+ (* x x) y))
  (sqrt (+ (* x x) y))
  (sqrt (+ (* x x) y))
  (+ (pow (* x x) 3) (pow y 3))
  (+ (* (* x x) (* x x)) (- (* y y) (* (* x x) y)))
  (- (* (* x x) (* x x)) (* y y))
  (- (* x x) y)
  (+ (* NAN y) (+ (* (pow NAN 3) (pow y 2)) (* 1/2 (* (pow x 2) NAN))))
  (+ (* 1/2 (/ y x)) x)
  (neg (+ (* 1/2 (/ y x)) x))
  (+ y (pow x 2))
  (+ (pow x 2) y)
  (+ (pow x 2) y)
0.056 * * [simplify]: iteration  0 :  59  enodes  (cost  320 )
0.066 * * [simplify]: iteration  1 :  139  enodes  (cost  297 )
0.094 * * [simplify]: iteration  2 :  387  enodes  (cost  262 )
0.221 * * [simplify]: iteration  3 :  1085  enodes  (cost  260 )
1.375 * * [simplify]: iteration  4 :  3729  enodes  (cost  260 )
2.364 * * [simplify]: iteration  done :  5000  enodes  (cost  260 )
2.364 * [simplify]: Simplified to:
   (log (sqrt (+ (* x x) y)))
  (exp (sqrt (+ (* x x) y)))
  (* (cbrt (sqrt (+ (* x x) y))) (cbrt (sqrt (+ (* x x) y))))
  (cbrt (sqrt (+ (* x x) y)))
  (pow (sqrt (+ (* x x) y)) 3)
  (fabs (cbrt (+ (* x x) y)))
  (sqrt (cbrt (+ (* x x) y)))
  (sqrt (sqrt (+ (* x x) y)))
  (sqrt (sqrt (+ (* x x) y)))
  1
  (sqrt (+ (* x x) y))
  (sqrt (+ (pow x 6) (pow y 3)))
  (sqrt (+ (pow x 4) (* y (- y (* x x)))))
  (sqrt (- (pow x 4) (* y y)))
  (sqrt (- (* x x) y))
  1/2
  (sqrt (sqrt (+ (* x x) y)))
  (sqrt (sqrt (+ (* x x) y)))
  (exp (+ (* x x) y))
  (log (+ (* x x) y))
  (exp (+ (* x x) y))
  (* (cbrt (+ (* x x) y)) (cbrt (+ (* x x) y)))
  (cbrt (+ (* x x) y))
  (pow (+ (* x x) y) 3)
  (sqrt (+ (* x x) y))
  (sqrt (+ (* x x) y))
  (+ (pow x 6) (pow y 3))
  (+ (pow x 4) (* y (- y (* x x))))
  (- (pow x 4) (* y y))
  (- (* x x) y)
  (+ (* 1/2 (* (pow x 2) NAN)) (* y (+ NAN (* (pow NAN 3) y))))
  (+ (* 1/2 (/ y x)) x)
  (- (* -1/2 (/ y x)) x)
  (+ y (pow x 2))
  (+ y (pow x 2))
  (+ y (pow x 2))
2.364 * * * [progress]: adding candidates to table
2.401 * * [progress]: iteration 2 / 4
2.401 * * * [progress]: picking best candidate
2.406 * * * * [pick]: Picked  #<alt (λ (x y) (+ (* 1/2 (/ y x)) x))>
2.406 * * * [progress]: localizing error
2.410 * * * [progress]: generating rewritten candidates
2.410 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
2.419 * * * [progress]: generating series expansions
2.419 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
2.419 * [approximate]: Taking taylor expansion of (* 1/2 (/ y x)) in (y x) around 0
2.419 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in x
2.419 * [taylor]: Taking taylor expansion of 1/2 in x
2.419 * [taylor]: Taking taylor expansion of (/ y x) in x
2.419 * [taylor]: Taking taylor expansion of y in x
2.419 * [taylor]: Taking taylor expansion of x in x
2.419 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
2.419 * [taylor]: Taking taylor expansion of 1/2 in y
2.419 * [taylor]: Taking taylor expansion of (/ y x) in y
2.419 * [taylor]: Taking taylor expansion of y in y
2.419 * [taylor]: Taking taylor expansion of x in y
2.419 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
2.419 * [taylor]: Taking taylor expansion of 1/2 in y
2.419 * [taylor]: Taking taylor expansion of (/ y x) in y
2.419 * [taylor]: Taking taylor expansion of y in y
2.419 * [taylor]: Taking taylor expansion of x in y
2.419 * [taylor]: Taking taylor expansion of (/ 1/2 x) in x
2.419 * [taylor]: Taking taylor expansion of 1/2 in x
2.419 * [taylor]: Taking taylor expansion of x in x
2.419 * [taylor]: Taking taylor expansion of 0 in x
2.420 * [taylor]: Taking taylor expansion of 0 in x
2.420 * [taylor]: Taking taylor expansion of 0 in x
2.420 * [approximate]: Taking taylor expansion of (* 1/2 (/ x y)) in (y x) around 0
2.420 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
2.420 * [taylor]: Taking taylor expansion of 1/2 in x
2.420 * [taylor]: Taking taylor expansion of (/ x y) in x
2.420 * [taylor]: Taking taylor expansion of x in x
2.420 * [taylor]: Taking taylor expansion of y in x
2.420 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
2.420 * [taylor]: Taking taylor expansion of 1/2 in y
2.420 * [taylor]: Taking taylor expansion of (/ x y) in y
2.420 * [taylor]: Taking taylor expansion of x in y
2.420 * [taylor]: Taking taylor expansion of y in y
2.420 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
2.420 * [taylor]: Taking taylor expansion of 1/2 in y
2.420 * [taylor]: Taking taylor expansion of (/ x y) in y
2.420 * [taylor]: Taking taylor expansion of x in y
2.420 * [taylor]: Taking taylor expansion of y in y
2.420 * [taylor]: Taking taylor expansion of (* 1/2 x) in x
2.420 * [taylor]: Taking taylor expansion of 1/2 in x
2.420 * [taylor]: Taking taylor expansion of x in x
2.421 * [taylor]: Taking taylor expansion of 0 in x
2.421 * [taylor]: Taking taylor expansion of 0 in x
2.421 * [taylor]: Taking taylor expansion of 0 in x
2.421 * [approximate]: Taking taylor expansion of (* 1/2 (/ x y)) in (y x) around 0
2.421 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
2.421 * [taylor]: Taking taylor expansion of 1/2 in x
2.421 * [taylor]: Taking taylor expansion of (/ x y) in x
2.421 * [taylor]: Taking taylor expansion of x in x
2.421 * [taylor]: Taking taylor expansion of y in x
2.421 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
2.421 * [taylor]: Taking taylor expansion of 1/2 in y
2.421 * [taylor]: Taking taylor expansion of (/ x y) in y
2.421 * [taylor]: Taking taylor expansion of x in y
2.421 * [taylor]: Taking taylor expansion of y in y
2.421 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
2.421 * [taylor]: Taking taylor expansion of 1/2 in y
2.421 * [taylor]: Taking taylor expansion of (/ x y) in y
2.421 * [taylor]: Taking taylor expansion of x in y
2.421 * [taylor]: Taking taylor expansion of y in y
2.421 * [taylor]: Taking taylor expansion of (* 1/2 x) in x
2.421 * [taylor]: Taking taylor expansion of 1/2 in x
2.421 * [taylor]: Taking taylor expansion of x in x
2.422 * [taylor]: Taking taylor expansion of 0 in x
2.422 * [taylor]: Taking taylor expansion of 0 in x
2.422 * [taylor]: Taking taylor expansion of 0 in x
2.422 * * * [progress]: simplifying candidates
2.423 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* 1/2 (/ y x))
  (+ (log 1/2) (- (log y) (log x)))
  (+ (log 1/2) (log (/ y x)))
  (log (* 1/2 (/ y x)))
  (exp (* 1/2 (/ y x)))
  (* (* (* 1/2 1/2) 1/2) (/ (* (* y y) y) (* (* x x) x)))
  (* (* (* 1/2 1/2) 1/2) (* (* (/ y x) (/ y x)) (/ y x)))
  (* (cbrt (* 1/2 (/ y x))) (cbrt (* 1/2 (/ y x))))
  (cbrt (* 1/2 (/ y x)))
  (* (* (* 1/2 (/ y x)) (* 1/2 (/ y x))) (* 1/2 (/ y x)))
  (sqrt (* 1/2 (/ y x)))
  (sqrt (* 1/2 (/ y x)))
  (* (sqrt 1/2) (sqrt (/ y x)))
  (* (sqrt 1/2) (sqrt (/ y x)))
  (* (sqrt 1/2) (/ (sqrt y) (sqrt x)))
  (* (sqrt 1/2) (/ (sqrt y) (sqrt x)))
  (* 1/2 (* (cbrt (/ y x)) (cbrt (/ y x))))
  (* 1/2 (sqrt (/ y x)))
  (* 1/2 (/ (* (cbrt y) (cbrt y)) (* (cbrt x) (cbrt x))))
  (* 1/2 (/ (* (cbrt y) (cbrt y)) (sqrt x)))
  (* 1/2 (/ (* (cbrt y) (cbrt y)) 1))
  (* 1/2 (/ (sqrt y) (* (cbrt x) (cbrt x))))
  (* 1/2 (/ (sqrt y) (sqrt x)))
  (* 1/2 (/ (sqrt y) 1))
  (* 1/2 (/ 1 (* (cbrt x) (cbrt x))))
  (* 1/2 (/ 1 (sqrt x)))
  (* 1/2 (/ 1 1))
  (* 1/2 1)
  (* 1/2 y)
  (* (cbrt 1/2) (/ y x))
  (* (sqrt 1/2) (/ y x))
  (* 1/2 (/ y x))
  (* 1/2 y)
  (* 1/2 (/ y x))
  (* 1/2 (/ y x))
  (* 1/2 (/ y x))
2.424 * * [simplify]: iteration  0 :  68  enodes  (cost  277 )
2.442 * * [simplify]: iteration  1 :  166  enodes  (cost  250 )
2.472 * * [simplify]: iteration  2 :  427  enodes  (cost  230 )
2.666 * * [simplify]: iteration  3 :  1210  enodes  (cost  229 )
3.831 * * [simplify]: iteration  4 :  2948  enodes  (cost  229 )
5.620 * * [simplify]: iteration  done :  5000  enodes  (cost  229 )
5.620 * [simplify]: Simplified to:
   (* 1/2 (/ y x))
  (log (* 1/2 (/ y x)))
  (log (* 1/2 (/ y x)))
  (log (* 1/2 (/ y x)))
  (sqrt (exp (/ y x)))
  (pow (* 1/2 (/ y x)) 3)
  (pow (* 1/2 (/ y x)) 3)
  (* (cbrt (* 1/2 (/ y x))) (cbrt (* 1/2 (/ y x))))
  (cbrt (* 1/2 (/ y x)))
  (pow (* 1/2 (/ y x)) 3)
  (sqrt (* 1/2 (/ y x)))
  (sqrt (* 1/2 (/ y x)))
  (* (sqrt 1/2) (sqrt (/ y x)))
  (* (sqrt 1/2) (sqrt (/ y x)))
  (* (sqrt 1/2) (/ (sqrt y) (sqrt x)))
  (* (sqrt 1/2) (/ (sqrt y) (sqrt x)))
  (* 1/2 (* (cbrt (/ y x)) (cbrt (/ y x))))
  (* 1/2 (sqrt (/ y x)))
  (* 1/2 (/ (* (cbrt y) (cbrt y)) (* (cbrt x) (cbrt x))))
  (* 1/2 (/ (* (cbrt y) (cbrt y)) (sqrt x)))
  (* 1/2 (* (cbrt y) (cbrt y)))
  (* 1/2 (/ (sqrt y) (* (cbrt x) (cbrt x))))
  (* 1/2 (/ (sqrt y) (sqrt x)))
  (* 1/2 (sqrt y))
  (/ 1/2 (* (cbrt x) (cbrt x)))
  (/ 1/2 (sqrt x))
  1/2
  1/2
  (* 1/2 y)
  (* (cbrt 1/2) (/ y x))
  (* (sqrt 1/2) (/ y x))
  (* 1/2 (/ y x))
  (* 1/2 y)
  (* 1/2 (/ y x))
  (* 1/2 (/ y x))
  (* 1/2 (/ y x))
5.620 * * * [progress]: adding candidates to table
5.650 * * [progress]: iteration 3 / 4
5.650 * * * [progress]: picking best candidate
5.652 * * * * [pick]: Picked  #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>
5.652 * * * [progress]: localizing error
5.657 * * * [progress]: generating rewritten candidates
5.657 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
5.665 * * * [progress]: generating series expansions
5.665 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
5.665 * [approximate]: Taking taylor expansion of (* -1/2 (/ y x)) in (y x) around 0
5.665 * [taylor]: Taking taylor expansion of (* -1/2 (/ y x)) in x
5.665 * [taylor]: Taking taylor expansion of -1/2 in x
5.665 * [taylor]: Taking taylor expansion of (/ y x) in x
5.665 * [taylor]: Taking taylor expansion of y in x
5.665 * [taylor]: Taking taylor expansion of x in x
5.665 * [taylor]: Taking taylor expansion of (* -1/2 (/ y x)) in y
5.665 * [taylor]: Taking taylor expansion of -1/2 in y
5.665 * [taylor]: Taking taylor expansion of (/ y x) in y
5.665 * [taylor]: Taking taylor expansion of y in y
5.665 * [taylor]: Taking taylor expansion of x in y
5.666 * [taylor]: Taking taylor expansion of (* -1/2 (/ y x)) in y
5.666 * [taylor]: Taking taylor expansion of -1/2 in y
5.666 * [taylor]: Taking taylor expansion of (/ y x) in y
5.666 * [taylor]: Taking taylor expansion of y in y
5.666 * [taylor]: Taking taylor expansion of x in y
5.666 * [taylor]: Taking taylor expansion of (/ -1/2 x) in x
5.666 * [taylor]: Taking taylor expansion of -1/2 in x
5.666 * [taylor]: Taking taylor expansion of x in x
5.666 * [taylor]: Taking taylor expansion of 0 in x
5.666 * [taylor]: Taking taylor expansion of 0 in x
5.666 * [taylor]: Taking taylor expansion of 0 in x
5.667 * [approximate]: Taking taylor expansion of (* -1/2 (/ x y)) in (y x) around 0
5.667 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in x
5.667 * [taylor]: Taking taylor expansion of -1/2 in x
5.667 * [taylor]: Taking taylor expansion of (/ x y) in x
5.667 * [taylor]: Taking taylor expansion of x in x
5.667 * [taylor]: Taking taylor expansion of y in x
5.667 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
5.667 * [taylor]: Taking taylor expansion of -1/2 in y
5.667 * [taylor]: Taking taylor expansion of (/ x y) in y
5.667 * [taylor]: Taking taylor expansion of x in y
5.667 * [taylor]: Taking taylor expansion of y in y
5.667 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
5.667 * [taylor]: Taking taylor expansion of -1/2 in y
5.667 * [taylor]: Taking taylor expansion of (/ x y) in y
5.667 * [taylor]: Taking taylor expansion of x in y
5.667 * [taylor]: Taking taylor expansion of y in y
5.667 * [taylor]: Taking taylor expansion of (* -1/2 x) in x
5.667 * [taylor]: Taking taylor expansion of -1/2 in x
5.667 * [taylor]: Taking taylor expansion of x in x
5.667 * [taylor]: Taking taylor expansion of 0 in x
5.667 * [taylor]: Taking taylor expansion of 0 in x
5.668 * [taylor]: Taking taylor expansion of 0 in x
5.668 * [approximate]: Taking taylor expansion of (* -1/2 (/ x y)) in (y x) around 0
5.668 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in x
5.668 * [taylor]: Taking taylor expansion of -1/2 in x
5.668 * [taylor]: Taking taylor expansion of (/ x y) in x
5.668 * [taylor]: Taking taylor expansion of x in x
5.668 * [taylor]: Taking taylor expansion of y in x
5.668 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
5.668 * [taylor]: Taking taylor expansion of -1/2 in y
5.668 * [taylor]: Taking taylor expansion of (/ x y) in y
5.668 * [taylor]: Taking taylor expansion of x in y
5.668 * [taylor]: Taking taylor expansion of y in y
5.668 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
5.668 * [taylor]: Taking taylor expansion of -1/2 in y
5.668 * [taylor]: Taking taylor expansion of (/ x y) in y
5.668 * [taylor]: Taking taylor expansion of x in y
5.668 * [taylor]: Taking taylor expansion of y in y
5.668 * [taylor]: Taking taylor expansion of (* -1/2 x) in x
5.668 * [taylor]: Taking taylor expansion of -1/2 in x
5.668 * [taylor]: Taking taylor expansion of x in x
5.668 * [taylor]: Taking taylor expansion of 0 in x
5.668 * [taylor]: Taking taylor expansion of 0 in x
5.669 * [taylor]: Taking taylor expansion of 0 in x
5.669 * * * [progress]: simplifying candidates
5.669 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* -1/2 (/ y x))
  (+ (log -1/2) (- (log y) (log x)))
  (+ (log -1/2) (log (/ y x)))
  (log (* -1/2 (/ y x)))
  (exp (* -1/2 (/ y x)))
  (* (* (* -1/2 -1/2) -1/2) (/ (* (* y y) y) (* (* x x) x)))
  (* (* (* -1/2 -1/2) -1/2) (* (* (/ y x) (/ y x)) (/ y x)))
  (* (cbrt (* -1/2 (/ y x))) (cbrt (* -1/2 (/ y x))))
  (cbrt (* -1/2 (/ y x)))
  (* (* (* -1/2 (/ y x)) (* -1/2 (/ y x))) (* -1/2 (/ y x)))
  (sqrt (* -1/2 (/ y x)))
  (sqrt (* -1/2 (/ y x)))
  (* (sqrt -1/2) (sqrt (/ y x)))
  (* (sqrt -1/2) (sqrt (/ y x)))
  (* (sqrt -1/2) (/ (sqrt y) (sqrt x)))
  (* (sqrt -1/2) (/ (sqrt y) (sqrt x)))
  (* -1/2 (* (cbrt (/ y x)) (cbrt (/ y x))))
  (* -1/2 (sqrt (/ y x)))
  (* -1/2 (/ (* (cbrt y) (cbrt y)) (* (cbrt x) (cbrt x))))
  (* -1/2 (/ (* (cbrt y) (cbrt y)) (sqrt x)))
  (* -1/2 (/ (* (cbrt y) (cbrt y)) 1))
  (* -1/2 (/ (sqrt y) (* (cbrt x) (cbrt x))))
  (* -1/2 (/ (sqrt y) (sqrt x)))
  (* -1/2 (/ (sqrt y) 1))
  (* -1/2 (/ 1 (* (cbrt x) (cbrt x))))
  (* -1/2 (/ 1 (sqrt x)))
  (* -1/2 (/ 1 1))
  (* -1/2 1)
  (* -1/2 y)
  (* (cbrt -1/2) (/ y x))
  (* (sqrt -1/2) (/ y x))
  (* -1/2 (/ y x))
  (* -1/2 y)
  (* -1/2 (/ y x))
  (* -1/2 (/ y x))
  (* -1/2 (/ y x))
5.671 * * [simplify]: iteration  0 :  68  enodes  (cost  277 )
5.688 * * [simplify]: iteration  1 :  166  enodes  (cost  250 )
5.716 * * [simplify]: iteration  2 :  428  enodes  (cost  230 )
5.905 * * [simplify]: iteration  3 :  1211  enodes  (cost  230 )
7.101 * * [simplify]: iteration  4 :  2953  enodes  (cost  230 )
8.678 * * [simplify]: iteration  done :  5000  enodes  (cost  230 )
8.678 * [simplify]: Simplified to:
   (* -1/2 (/ y x))
  (log (* -1/2 (/ y x)))
  (log (* -1/2 (/ y x)))
  (log (* -1/2 (/ y x)))
  (exp (* -1/2 (/ y x)))
  (pow (* -1/2 (/ y x)) 3)
  (pow (* -1/2 (/ y x)) 3)
  (* (cbrt (* -1/2 (/ y x))) (cbrt (* -1/2 (/ y x))))
  (cbrt (* -1/2 (/ y x)))
  (pow (* -1/2 (/ y x)) 3)
  (sqrt (* -1/2 (/ y x)))
  (sqrt (* -1/2 (/ y x)))
  (* (sqrt -1/2) (sqrt (/ y x)))
  (* (sqrt -1/2) (sqrt (/ y x)))
  (* (sqrt -1/2) (/ (sqrt y) (sqrt x)))
  (* (sqrt -1/2) (/ (sqrt y) (sqrt x)))
  (* -1/2 (* (cbrt (/ y x)) (cbrt (/ y x))))
  (* -1/2 (sqrt (/ y x)))
  (* -1/2 (/ (* (cbrt y) (cbrt y)) (* (cbrt x) (cbrt x))))
  (* -1/2 (/ (* (cbrt y) (cbrt y)) (sqrt x)))
  (* -1/2 (* (cbrt y) (cbrt y)))
  (* -1/2 (/ (sqrt y) (* (cbrt x) (cbrt x))))
  (* -1/2 (/ (sqrt y) (sqrt x)))
  (* -1/2 (sqrt y))
  (/ -1/2 (* (cbrt x) (cbrt x)))
  (/ -1/2 (sqrt x))
  -1/2
  -1/2
  (* -1/2 y)
  (* (cbrt -1/2) (/ y x))
  (* (sqrt -1/2) (/ y x))
  (* -1/2 (/ y x))
  (* -1/2 y)
  (* -1/2 (/ y x))
  (* -1/2 (/ y x))
  (* -1/2 (/ y x))
8.678 * * * [progress]: adding candidates to table
8.708 * [progress]: [Phase 3 of 3] Extracting.
8.708 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (+ (* 1/2 (/ y x)) x))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
8.708 * * * [regime-changes]: Trying 5 branch expressions: ((* x x) (+ (* x x) y) (sqrt (+ (* x x) y)) y x)
8.708 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (+ (* 1/2 (/ y x)) x))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
8.746 * * * * [regimes]: Trying to branch on (+ (* x x) y) from (#<alt (λ (x y) (+ (* 1/2 (/ y x)) x))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
8.785 * * * * [regimes]: Trying to branch on (sqrt (+ (* x x) y)) from (#<alt (λ (x y) (+ (* 1/2 (/ y x)) x))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
8.827 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (+ (* 1/2 (/ y x)) x))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
8.887 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (+ (* 1/2 (/ y x)) x))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
8.932 * * * [regime]: Found split indices: #<option (#s(si 2 44) #s(si 1 210) #s(si 0 255))>
8.933 * [binary-search]: Improving bounds with binary search for x and (#<alt (λ (x y) (+ (* 1/2 (/ y x)) x))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
8.960 * [regimes]: Found splitpoints: (#s(sp 2 x -1.3351817177689574e+154) #s(sp 1 x 1.385590831600412e+147) #s(sp 0 x +nan.0)) , with alts (#<alt (λ (x y) (+ (* 1/2 (/ y x)) x))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
8.961 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (if (<= x -1.3351817177689574e+154) (- (* -1/2 (/ y x)) x) (if (<= x 1.385590831600412e+147) (sqrt (+ (* x x) y)) (+ (* 1/2 (/ y x)) x)))
8.961 * * [simplify]: iteration  0 :  18  enodes  (cost  28 )
8.962 * * [simplify]: iteration  1 :  22  enodes  (cost  28 )
8.962 * * [simplify]: iteration  done :  22  enodes  (cost  28 )
8.962 * [simplify]: Simplified to:
   (if (<= x -1.3351817177689574e+154) (- (* -1/2 (/ y x)) x) (if (<= x 1.385590831600412e+147) (sqrt (+ (* x x) y)) (+ (* 1/2 (/ y x)) x)))
9.858 * [regime-testing]: End program error score: 0.004125515689461182
9.948 * [regime-testing]: Target error score: 0.6366701582217857