150.011 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.018 * * * [progress]: [2/2] Setting up program.
0.021 * [progress]: [Phase 2 of 3] Improving.
0.022 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sqrt (+ (* x x) y))
0.023 * * [simplify]: iteration  0 :  6  enodes  (cost  3 )
0.024 * * [simplify]: iteration  1 :  6  enodes  (cost  3 )
0.024 * [simplify]: Simplified to:
   (sqrt (+ (* x x) y))
0.025 * * [progress]: iteration 1 / 4
0.025 * * * [progress]: picking best candidate
0.028 * * * * [pick]: Picked  #<alt (λ (x y) (sqrt (+ (* x x) y)))>
0.028 * * * [progress]: localizing error
0.032 * * * [progress]: generating rewritten candidates
0.032 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.036 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
0.040 * * * [progress]: generating series expansions
0.040 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.041 * [approximate]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in (x y) around 0
0.041 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in y
0.041 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in y
0.041 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.041 * [taylor]: Taking taylor expansion of x in y
0.041 * [taylor]: Taking taylor expansion of y in y
0.041 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in x
0.041 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.041 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.041 * [taylor]: Taking taylor expansion of x in x
0.041 * [taylor]: Taking taylor expansion of y in x
0.041 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in x
0.041 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.041 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.041 * [taylor]: Taking taylor expansion of x in x
0.041 * [taylor]: Taking taylor expansion of y in x
0.041 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.041 * [taylor]: Taking taylor expansion of y in y
0.041 * [taylor]: Taking taylor expansion of 0 in y
0.041 * [taylor]: Taking taylor expansion of (* 1/2 (sqrt (/ 1 y))) in y
0.041 * [taylor]: Taking taylor expansion of 1/2 in y
0.041 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.041 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.041 * [taylor]: Taking taylor expansion of y in y
0.042 * [approximate]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.042 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in y
0.042 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.042 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.042 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.042 * [taylor]: Taking taylor expansion of x in y
0.042 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.042 * [taylor]: Taking taylor expansion of y in y
0.042 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.042 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.042 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.042 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.042 * [taylor]: Taking taylor expansion of x in x
0.042 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.042 * [taylor]: Taking taylor expansion of y in x
0.042 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.043 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.043 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.043 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.043 * [taylor]: Taking taylor expansion of x in x
0.043 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.043 * [taylor]: Taking taylor expansion of y in x
0.043 * [taylor]: Taking taylor expansion of 1 in y
0.043 * [taylor]: Taking taylor expansion of 0 in y
0.043 * [taylor]: Taking taylor expansion of (/ 1/2 y) in y
0.043 * [taylor]: Taking taylor expansion of 1/2 in y
0.043 * [taylor]: Taking taylor expansion of y in y
0.043 * [taylor]: Taking taylor expansion of 0 in y
0.044 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.044 * [taylor]: Taking taylor expansion of -1/8 in y
0.044 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.044 * [taylor]: Taking taylor expansion of y in y
0.044 * [approximate]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.044 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in y
0.044 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.044 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.044 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.044 * [taylor]: Taking taylor expansion of x in y
0.044 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.044 * [taylor]: Taking taylor expansion of y in y
0.044 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.044 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.044 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.044 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.044 * [taylor]: Taking taylor expansion of x in x
0.044 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.044 * [taylor]: Taking taylor expansion of y in x
0.044 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.044 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.044 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.044 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.044 * [taylor]: Taking taylor expansion of x in x
0.044 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.044 * [taylor]: Taking taylor expansion of y in x
0.045 * [taylor]: Taking taylor expansion of 1 in y
0.045 * [taylor]: Taking taylor expansion of 0 in y
0.045 * [taylor]: Taking taylor expansion of (/ -1/2 y) in y
0.045 * [taylor]: Taking taylor expansion of -1/2 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 (/ -1/8 (pow y 2)) in y
0.046 * [taylor]: Taking taylor expansion of -1/8 in y
0.046 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.046 * [taylor]: Taking taylor expansion of y in y
0.046 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
0.046 * [approximate]: Taking taylor expansion of (+ (pow x 2) y) in (x y) around 0
0.046 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) 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 y in y
0.046 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) 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 y in x
0.046 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) 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 y in x
0.046 * [taylor]: Taking taylor expansion of y in y
0.046 * [taylor]: Taking taylor expansion of 0 in y
0.046 * [taylor]: Taking taylor expansion of 1 in y
0.046 * [taylor]: Taking taylor expansion of 0 in y
0.046 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
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
0.047 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.047 * [taylor]: Taking taylor expansion of x 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 (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.047 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.047 * [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 (pow x 2)) (/ 1 y)) in x
0.047 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.047 * [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 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 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
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 (- (/ 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
0.048 * [taylor]: Taking taylor expansion of 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
0.048 * [taylor]: Taking taylor expansion of y in x
0.048 * [taylor]: Taking taylor expansion of 1 in y
0.048 * [taylor]: Taking taylor expansion of 0 in y
0.049 * [taylor]: Taking taylor expansion of (neg (/ 1 y)) in y
0.049 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.049 * [taylor]: Taking taylor expansion of y in y
0.049 * [taylor]: Taking taylor expansion of 0 in y
0.049 * [taylor]: Taking taylor expansion of 0 in y
0.049 * * * [progress]: simplifying candidates
0.050 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (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)
  (+ (* (pow NAN 3) (pow y 2)) (+ (* NAN y) (* 1/2 (* (pow x 2) NAN))))
  (+ x (* 1/2 (/ y x)))
  (neg (+ x (* 1/2 (/ y x))))
  (+ (pow x 2) y)
  (+ (pow x 2) y)
  (+ (pow x 2) y)
0.052 * * [simplify]: iteration  0 :  139  enodes  (cost  151 )
0.055 * * [simplify]: iteration  1 :  485  enodes  (cost  141 )
0.063 * * [simplify]: iteration  2 :  1555  enodes  (cost  139 )
0.097 * * [simplify]: iteration  3 :  5002  enodes  (cost  138 )
0.098 * [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 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) 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 x) 3) (pow y 3))
  (- (+ (pow x 4) (pow y 2)) (* (* x x) y))
  (- (pow x 4) (pow y 2))
  (- (* x x) y)
  (* NAN (+ (* (* NAN NAN) (pow y 2)) (+ (* 1/2 (pow x 2)) y)))
  (+ x (* 1/2 (/ y x)))
  (- (* -1/2 (/ y x)) x)
  (+ (* x x) y)
  (+ (* x x) y)
  (+ (* x x) y)
0.098 * * * [progress]: adding candidates to table
0.167 * * [progress]: iteration 2 / 4
0.167 * * * [progress]: picking best candidate
0.173 * * * * [pick]: Picked  #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>
0.173 * * * [progress]: localizing error
0.177 * * * [progress]: generating rewritten candidates
0.177 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.187 * * * [progress]: generating series expansions
0.187 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.187 * [approximate]: Taking taylor expansion of (* -1/2 (/ y x)) in (y x) around 0
0.187 * [taylor]: Taking taylor expansion of (* -1/2 (/ y x)) in x
0.187 * [taylor]: Taking taylor expansion of -1/2 in x
0.187 * [taylor]: Taking taylor expansion of (/ y x) in x
0.187 * [taylor]: Taking taylor expansion of y in x
0.187 * [taylor]: Taking taylor expansion of x in x
0.187 * [taylor]: Taking taylor expansion of (* -1/2 (/ y x)) in y
0.187 * [taylor]: Taking taylor expansion of -1/2 in y
0.187 * [taylor]: Taking taylor expansion of (/ y x) in y
0.187 * [taylor]: Taking taylor expansion of y in y
0.187 * [taylor]: Taking taylor expansion of x in y
0.187 * [taylor]: Taking taylor expansion of (* -1/2 (/ y x)) in y
0.187 * [taylor]: Taking taylor expansion of -1/2 in y
0.187 * [taylor]: Taking taylor expansion of (/ y x) in y
0.187 * [taylor]: Taking taylor expansion of y in y
0.187 * [taylor]: Taking taylor expansion of x in y
0.188 * [taylor]: Taking taylor expansion of (/ -1/2 x) in x
0.188 * [taylor]: Taking taylor expansion of -1/2 in x
0.188 * [taylor]: Taking taylor expansion of x in x
0.188 * [taylor]: Taking taylor expansion of 0 in x
0.188 * [taylor]: Taking taylor expansion of 0 in x
0.188 * [taylor]: Taking taylor expansion of 0 in x
0.188 * [approximate]: Taking taylor expansion of (* -1/2 (/ x y)) in (y x) around 0
0.188 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in x
0.188 * [taylor]: Taking taylor expansion of -1/2 in x
0.188 * [taylor]: Taking taylor expansion of (/ x y) in x
0.188 * [taylor]: Taking taylor expansion of x in x
0.188 * [taylor]: Taking taylor expansion of y in x
0.188 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
0.188 * [taylor]: Taking taylor expansion of -1/2 in y
0.188 * [taylor]: Taking taylor expansion of (/ x y) in y
0.188 * [taylor]: Taking taylor expansion of x in y
0.188 * [taylor]: Taking taylor expansion of y in y
0.188 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
0.188 * [taylor]: Taking taylor expansion of -1/2 in y
0.188 * [taylor]: Taking taylor expansion of (/ x y) in y
0.188 * [taylor]: Taking taylor expansion of x in y
0.189 * [taylor]: Taking taylor expansion of y in y
0.189 * [taylor]: Taking taylor expansion of (* -1/2 x) in x
0.189 * [taylor]: Taking taylor expansion of -1/2 in x
0.189 * [taylor]: Taking taylor expansion of x in x
0.189 * [taylor]: Taking taylor expansion of 0 in x
0.189 * [taylor]: Taking taylor expansion of 0 in x
0.189 * [taylor]: Taking taylor expansion of 0 in x
0.189 * [approximate]: Taking taylor expansion of (* -1/2 (/ x y)) in (y x) around 0
0.189 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in x
0.189 * [taylor]: Taking taylor expansion of -1/2 in x
0.189 * [taylor]: Taking taylor expansion of (/ x y) in x
0.189 * [taylor]: Taking taylor expansion of x in x
0.189 * [taylor]: Taking taylor expansion of y in x
0.189 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
0.189 * [taylor]: Taking taylor expansion of -1/2 in y
0.189 * [taylor]: Taking taylor expansion of (/ x y) in y
0.189 * [taylor]: Taking taylor expansion of x in y
0.189 * [taylor]: Taking taylor expansion of y in y
0.189 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
0.189 * [taylor]: Taking taylor expansion of -1/2 in y
0.189 * [taylor]: Taking taylor expansion of (/ x y) in y
0.189 * [taylor]: Taking taylor expansion of x in y
0.189 * [taylor]: Taking taylor expansion of y in y
0.190 * [taylor]: Taking taylor expansion of (* -1/2 x) in x
0.190 * [taylor]: Taking taylor expansion of -1/2 in x
0.190 * [taylor]: Taking taylor expansion of x in x
0.190 * [taylor]: Taking taylor expansion of 0 in x
0.190 * [taylor]: Taking taylor expansion of 0 in x
0.190 * [taylor]: Taking taylor expansion of 0 in x
0.190 * * * [progress]: simplifying candidates
0.191 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* -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))
0.194 * * [simplify]: iteration  0 :  164  enodes  (cost  128 )
0.197 * * [simplify]: iteration  1 :  727  enodes  (cost  118 )
0.212 * * [simplify]: iteration  2 :  2950  enodes  (cost  118 )
0.252 * * [simplify]: iteration  3 :  5001  enodes  (cost  118 )
0.254 * [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)))
  (* -1/8 (pow (/ y x) 3))
  (* -1/8 (pow (/ y x) 3))
  (* (cbrt (* -1/2 (/ y x))) (cbrt (* -1/2 (/ y x))))
  (cbrt (* -1/2 (/ y x)))
  (* -1/8 (pow (/ 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)))
  (* (* (cbrt y) (cbrt y)) -1/2)
  (* -1/2 (/ (sqrt y) (* (cbrt x) (cbrt x))))
  (* -1/2 (/ (sqrt y) (sqrt x)))
  (* (sqrt y) -1/2)
  (/ -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))
0.254 * * * [progress]: adding candidates to table
0.319 * * [progress]: iteration 3 / 4
0.319 * * * [progress]: picking best candidate
0.322 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (* 1/2 (/ y x))))>
0.322 * * * [progress]: localizing error
0.327 * * * [progress]: generating rewritten candidates
0.327 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.334 * * * [progress]: generating series expansions
0.334 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.334 * [approximate]: Taking taylor expansion of (* 1/2 (/ y x)) in (y x) around 0
0.334 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in x
0.334 * [taylor]: Taking taylor expansion of 1/2 in x
0.334 * [taylor]: Taking taylor expansion of (/ y x) in x
0.334 * [taylor]: Taking taylor expansion of y in x
0.334 * [taylor]: Taking taylor expansion of x in x
0.334 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
0.334 * [taylor]: Taking taylor expansion of 1/2 in y
0.334 * [taylor]: Taking taylor expansion of (/ y x) in y
0.334 * [taylor]: Taking taylor expansion of y in y
0.334 * [taylor]: Taking taylor expansion of x in y
0.334 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
0.334 * [taylor]: Taking taylor expansion of 1/2 in y
0.335 * [taylor]: Taking taylor expansion of (/ y x) in y
0.335 * [taylor]: Taking taylor expansion of y in y
0.335 * [taylor]: Taking taylor expansion of x in y
0.335 * [taylor]: Taking taylor expansion of (/ 1/2 x) in x
0.335 * [taylor]: Taking taylor expansion of 1/2 in x
0.335 * [taylor]: Taking taylor expansion of x in x
0.335 * [taylor]: Taking taylor expansion of 0 in x
0.335 * [taylor]: Taking taylor expansion of 0 in x
0.335 * [taylor]: Taking taylor expansion of 0 in x
0.335 * [approximate]: Taking taylor expansion of (* 1/2 (/ x y)) in (y x) around 0
0.335 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.335 * [taylor]: Taking taylor expansion of 1/2 in x
0.335 * [taylor]: Taking taylor expansion of (/ x y) in x
0.335 * [taylor]: Taking taylor expansion of x in x
0.335 * [taylor]: Taking taylor expansion of y in x
0.335 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.335 * [taylor]: Taking taylor expansion of 1/2 in y
0.335 * [taylor]: Taking taylor expansion of (/ x y) in y
0.335 * [taylor]: Taking taylor expansion of x in y
0.336 * [taylor]: Taking taylor expansion of y in y
0.336 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.336 * [taylor]: Taking taylor expansion of 1/2 in y
0.336 * [taylor]: Taking taylor expansion of (/ x y) in y
0.336 * [taylor]: Taking taylor expansion of x in y
0.336 * [taylor]: Taking taylor expansion of y in y
0.336 * [taylor]: Taking taylor expansion of (* 1/2 x) in x
0.336 * [taylor]: Taking taylor expansion of 1/2 in x
0.336 * [taylor]: Taking taylor expansion of x in x
0.336 * [taylor]: Taking taylor expansion of 0 in x
0.336 * [taylor]: Taking taylor expansion of 0 in x
0.336 * [taylor]: Taking taylor expansion of 0 in x
0.336 * [approximate]: Taking taylor expansion of (* 1/2 (/ x y)) in (y x) around 0
0.336 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.336 * [taylor]: Taking taylor expansion of 1/2 in x
0.336 * [taylor]: Taking taylor expansion of (/ x y) in x
0.336 * [taylor]: Taking taylor expansion of x in x
0.336 * [taylor]: Taking taylor expansion of y in x
0.336 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.336 * [taylor]: Taking taylor expansion of 1/2 in y
0.336 * [taylor]: Taking taylor expansion of (/ x y) in y
0.336 * [taylor]: Taking taylor expansion of x in y
0.336 * [taylor]: Taking taylor expansion of y in y
0.337 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.337 * [taylor]: Taking taylor expansion of 1/2 in y
0.337 * [taylor]: Taking taylor expansion of (/ x y) in y
0.337 * [taylor]: Taking taylor expansion of x in y
0.337 * [taylor]: Taking taylor expansion of y in y
0.337 * [taylor]: Taking taylor expansion of (* 1/2 x) in x
0.337 * [taylor]: Taking taylor expansion of 1/2 in x
0.337 * [taylor]: Taking taylor expansion of x in x
0.337 * [taylor]: Taking taylor expansion of 0 in x
0.337 * [taylor]: Taking taylor expansion of 0 in x
0.337 * [taylor]: Taking taylor expansion of 0 in x
0.337 * * * [progress]: simplifying candidates
0.338 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 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))
0.341 * * [simplify]: iteration  0 :  164  enodes  (cost  128 )
0.345 * * [simplify]: iteration  1 :  727  enodes  (cost  118 )
0.359 * * [simplify]: iteration  2 :  2952  enodes  (cost  118 )
0.400 * * [simplify]: iteration  3 :  5001  enodes  (cost  118 )
0.402 * [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)))
  (* 1/8 (pow (/ y x) 3))
  (* 1/8 (pow (/ y x) 3))
  (* (cbrt (* 1/2 (/ y x))) (cbrt (* 1/2 (/ y x))))
  (cbrt (* 1/2 (/ y x)))
  (* 1/8 (pow (/ 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)))
  (* (* (cbrt y) (cbrt y)) 1/2)
  (* 1/2 (/ (sqrt y) (* (cbrt x) (cbrt x))))
  (* 1/2 (/ (sqrt y) (sqrt x)))
  (* (sqrt y) 1/2)
  (/ 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))
0.402 * * * [progress]: adding candidates to table
0.470 * [progress]: [Phase 3 of 3] Extracting.
0.470 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.470 * * * [regime-changes]: Trying 5 branch expressions: ((* x x) (+ (* x x) y) (sqrt (+ (* x x) y)) y x)
0.470 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.510 * * * * [regimes]: Trying to branch on (+ (* x x) y) from (#<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.548 * * * * [regimes]: Trying to branch on (sqrt (+ (* x x) y)) from (#<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.593 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.640 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.688 * * * [regime]: Found split indices: #<option (#s(si 2 44) #s(si 1 206) #s(si 0 255))>
0.688 * [binary-search]: Improving bounds with binary search for x and (#<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.755 * [regimes]: Found splitpoints: (#s(sp 2 x -2.0626306503968406e+153) #s(sp 1 x 2.9320303139055527e+91) #s(sp 0 x +nan.0)) , with alts (#<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.755 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (if (<= x -2.0626306503968406e+153) (- (* -1/2 (/ y x)) x) (if (<= x 2.9320303139055527e+91) (sqrt (+ (* x x) y)) (+ x (* 1/2 (/ y x)))))
0.756 * * [simplify]: iteration  0 :  22  enodes  (cost  9 )
0.756 * * [simplify]: iteration  1 :  22  enodes  (cost  9 )
0.756 * [simplify]: Simplified to:
   (if (<= x -2.0626306503968406e+153) (- (* -1/2 (/ y x)) x) (if (<= x 2.9320303139055527e+91) (sqrt (+ (* x x) y)) (+ x (* 1/2 (/ y x)))))
1.603 * [regime-testing]: Baseline error score: 21.246655831978998
1.604 * [regime-testing]: Oracle error score: 0.0023752969121140144
1.605 * [regime-testing]: End program error score: 0.21747362286641972
1.688 * [regime-testing]: Target error score: 0.5039625011668081