36.321 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.095 * * * [progress]: [2/2] Setting up program.
0.101 * [progress]: [Phase 2 of 3] Improving.
0.101 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sqrt (+ (* x x) y))
0.104 * * [simplify]: iteration  0 :  6  enodes  (cost  3 )
0.105 * * [simplify]: iteration  1 :  6  enodes  (cost  3 )
0.106 * [simplify]: Simplified to:
   (sqrt (+ (* x x) y))
0.106 * * [progress]: iteration 1 / 4
0.106 * * * [progress]: picking best candidate
0.111 * * * * [pick]: Picked  #<alt (λ (x y) (sqrt (+ (* x x) y)))>
0.111 * * * [progress]: localizing error
0.120 * * * [progress]: generating rewritten candidates
0.120 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.127 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
0.134 * * * [progress]: generating series expansions
0.134 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.134 * [approximate]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in (x y) around 0
0.134 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in y
0.134 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in y
0.134 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.134 * [taylor]: Taking taylor expansion of x in y
0.134 * [taylor]: Taking taylor expansion of y in y
0.135 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in x
0.135 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.135 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.135 * [taylor]: Taking taylor expansion of x in x
0.135 * [taylor]: Taking taylor expansion of y in x
0.135 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in x
0.135 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.135 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.135 * [taylor]: Taking taylor expansion of x in x
0.135 * [taylor]: Taking taylor expansion of y in x
0.135 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.135 * [taylor]: Taking taylor expansion of y in y
0.135 * [taylor]: Taking taylor expansion of 0 in y
0.135 * [taylor]: Taking taylor expansion of (* 1/2 (sqrt (/ 1 y))) in y
0.135 * [taylor]: Taking taylor expansion of 1/2 in y
0.136 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.136 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.136 * [taylor]: Taking taylor expansion of y in y
0.137 * [approximate]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.137 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in y
0.137 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.137 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.137 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.137 * [taylor]: Taking taylor expansion of x in y
0.137 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.137 * [taylor]: Taking taylor expansion of y in y
0.137 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.137 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.137 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.137 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.137 * [taylor]: Taking taylor expansion of x in x
0.137 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.137 * [taylor]: Taking taylor expansion of y in x
0.137 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.137 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.137 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.137 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.137 * [taylor]: Taking taylor expansion of x in x
0.137 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.138 * [taylor]: Taking taylor expansion of y in x
0.138 * [taylor]: Taking taylor expansion of 1 in y
0.138 * [taylor]: Taking taylor expansion of 0 in y
0.138 * [taylor]: Taking taylor expansion of (/ 1/2 y) in y
0.138 * [taylor]: Taking taylor expansion of 1/2 in y
0.138 * [taylor]: Taking taylor expansion of y in y
0.139 * [taylor]: Taking taylor expansion of 0 in y
0.139 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.139 * [taylor]: Taking taylor expansion of -1/8 in y
0.139 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.139 * [taylor]: Taking taylor expansion of y in y
0.140 * [approximate]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.140 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in y
0.140 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.140 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.140 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.140 * [taylor]: Taking taylor expansion of x in y
0.140 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.140 * [taylor]: Taking taylor expansion of y in y
0.140 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.140 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.140 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.140 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.140 * [taylor]: Taking taylor expansion of x in x
0.140 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.140 * [taylor]: Taking taylor expansion of y in x
0.141 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.141 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.141 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.141 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.141 * [taylor]: Taking taylor expansion of x in x
0.141 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.141 * [taylor]: Taking taylor expansion of y in x
0.141 * [taylor]: Taking taylor expansion of 1 in y
0.141 * [taylor]: Taking taylor expansion of 0 in y
0.142 * [taylor]: Taking taylor expansion of (/ -1/2 y) in y
0.142 * [taylor]: Taking taylor expansion of -1/2 in y
0.142 * [taylor]: Taking taylor expansion of y in y
0.142 * [taylor]: Taking taylor expansion of 0 in y
0.143 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.143 * [taylor]: Taking taylor expansion of -1/8 in y
0.143 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.143 * [taylor]: Taking taylor expansion of y in y
0.143 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
0.143 * [approximate]: Taking taylor expansion of (+ (pow x 2) y) in (x y) around 0
0.143 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in y
0.143 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.143 * [taylor]: Taking taylor expansion of x in y
0.143 * [taylor]: Taking taylor expansion of y in y
0.143 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.143 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.143 * [taylor]: Taking taylor expansion of x in x
0.143 * [taylor]: Taking taylor expansion of y in x
0.143 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.143 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.144 * [taylor]: Taking taylor expansion of x in x
0.144 * [taylor]: Taking taylor expansion of y in x
0.144 * [taylor]: Taking taylor expansion of y in y
0.144 * [taylor]: Taking taylor expansion of 0 in y
0.144 * [taylor]: Taking taylor expansion of 1 in y
0.144 * [taylor]: Taking taylor expansion of 0 in y
0.144 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.144 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.144 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.144 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.144 * [taylor]: Taking taylor expansion of x in y
0.145 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.145 * [taylor]: Taking taylor expansion of y in y
0.145 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.145 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.145 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.145 * [taylor]: Taking taylor expansion of x in x
0.145 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.145 * [taylor]: Taking taylor expansion of y in x
0.145 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.145 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.145 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.145 * [taylor]: Taking taylor expansion of x in x
0.145 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.145 * [taylor]: Taking taylor expansion of y in x
0.145 * [taylor]: Taking taylor expansion of 1 in y
0.145 * [taylor]: Taking taylor expansion of 0 in y
0.145 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.145 * [taylor]: Taking taylor expansion of y in y
0.146 * [taylor]: Taking taylor expansion of 0 in y
0.146 * [taylor]: Taking taylor expansion of 0 in y
0.147 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.147 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.147 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.147 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.147 * [taylor]: Taking taylor expansion of x in y
0.147 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.147 * [taylor]: Taking taylor expansion of y in y
0.147 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.147 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.147 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.147 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.147 * [taylor]: Taking taylor expansion of y in x
0.147 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.147 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.147 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.147 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.147 * [taylor]: Taking taylor expansion of y in x
0.147 * [taylor]: Taking taylor expansion of 1 in y
0.148 * [taylor]: Taking taylor expansion of 0 in y
0.148 * [taylor]: Taking taylor expansion of (neg (/ 1 y)) 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 0 in y
0.149 * [taylor]: Taking taylor expansion of 0 in y
0.149 * * * [progress]: simplifying candidates
0.150 * [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)
0.155 * * [simplify]: iteration  0 :  139  enodes  (cost  151 )
0.159 * * [simplify]: iteration  1 :  485  enodes  (cost  141 )
0.167 * * [simplify]: iteration  2 :  1555  enodes  (cost  139 )
0.200 * * [simplify]: iteration  3 :  5002  enodes  (cost  138 )
0.201 * [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)
0.201 * * * [progress]: adding candidates to table
0.242 * * [progress]: iteration 2 / 4
0.243 * * * [progress]: picking best candidate
0.247 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (* 1/2 (/ y x))))>
0.247 * * * [progress]: localizing error
0.252 * * * [progress]: generating rewritten candidates
0.252 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.259 * * * [progress]: generating series expansions
0.259 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.259 * [approximate]: Taking taylor expansion of (* 1/2 (/ y x)) in (y x) around 0
0.259 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in x
0.259 * [taylor]: Taking taylor expansion of 1/2 in x
0.259 * [taylor]: Taking taylor expansion of (/ y x) in x
0.259 * [taylor]: Taking taylor expansion of y in x
0.259 * [taylor]: Taking taylor expansion of x in x
0.259 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
0.259 * [taylor]: Taking taylor expansion of 1/2 in y
0.259 * [taylor]: Taking taylor expansion of (/ y x) in y
0.259 * [taylor]: Taking taylor expansion of y in y
0.260 * [taylor]: Taking taylor expansion of x in y
0.260 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
0.260 * [taylor]: Taking taylor expansion of 1/2 in y
0.260 * [taylor]: Taking taylor expansion of (/ y x) in y
0.260 * [taylor]: Taking taylor expansion of y in y
0.260 * [taylor]: Taking taylor expansion of x in y
0.260 * [taylor]: Taking taylor expansion of (/ 1/2 x) in x
0.260 * [taylor]: Taking taylor expansion of 1/2 in x
0.260 * [taylor]: Taking taylor expansion of x in x
0.260 * [taylor]: Taking taylor expansion of 0 in x
0.260 * [taylor]: Taking taylor expansion of 0 in x
0.260 * [taylor]: Taking taylor expansion of 0 in x
0.260 * [approximate]: Taking taylor expansion of (* 1/2 (/ x y)) in (y x) around 0
0.260 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.260 * [taylor]: Taking taylor expansion of 1/2 in x
0.260 * [taylor]: Taking taylor expansion of (/ x y) in x
0.261 * [taylor]: Taking taylor expansion of x in x
0.261 * [taylor]: Taking taylor expansion of y in x
0.261 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.261 * [taylor]: Taking taylor expansion of 1/2 in y
0.261 * [taylor]: Taking taylor expansion of (/ x y) in y
0.261 * [taylor]: Taking taylor expansion of x in y
0.261 * [taylor]: Taking taylor expansion of y in y
0.261 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.261 * [taylor]: Taking taylor expansion of 1/2 in y
0.261 * [taylor]: Taking taylor expansion of (/ x y) in y
0.261 * [taylor]: Taking taylor expansion of x in y
0.261 * [taylor]: Taking taylor expansion of y in y
0.261 * [taylor]: Taking taylor expansion of (* 1/2 x) in x
0.261 * [taylor]: Taking taylor expansion of 1/2 in x
0.261 * [taylor]: Taking taylor expansion of x in x
0.261 * [taylor]: Taking taylor expansion of 0 in x
0.261 * [taylor]: Taking taylor expansion of 0 in x
0.261 * [taylor]: Taking taylor expansion of 0 in x
0.261 * [approximate]: Taking taylor expansion of (* 1/2 (/ x y)) in (y x) around 0
0.261 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.261 * [taylor]: Taking taylor expansion of 1/2 in x
0.261 * [taylor]: Taking taylor expansion of (/ x y) in x
0.261 * [taylor]: Taking taylor expansion of x in x
0.261 * [taylor]: Taking taylor expansion of y in x
0.262 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.262 * [taylor]: Taking taylor expansion of 1/2 in y
0.262 * [taylor]: Taking taylor expansion of (/ x y) in y
0.262 * [taylor]: Taking taylor expansion of x in y
0.262 * [taylor]: Taking taylor expansion of y in y
0.262 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.262 * [taylor]: Taking taylor expansion of 1/2 in y
0.262 * [taylor]: Taking taylor expansion of (/ x y) in y
0.262 * [taylor]: Taking taylor expansion of x in y
0.262 * [taylor]: Taking taylor expansion of y in y
0.262 * [taylor]: Taking taylor expansion of (* 1/2 x) in x
0.262 * [taylor]: Taking taylor expansion of 1/2 in x
0.262 * [taylor]: Taking taylor expansion of x in x
0.262 * [taylor]: Taking taylor expansion of 0 in x
0.262 * [taylor]: Taking taylor expansion of 0 in x
0.262 * [taylor]: Taking taylor expansion of 0 in x
0.262 * * * [progress]: simplifying candidates
0.263 * [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))
0.266 * * [simplify]: iteration  0 :  164  enodes  (cost  128 )
0.270 * * [simplify]: iteration  1 :  727  enodes  (cost  118 )
0.294 * * [simplify]: iteration  2 :  2952  enodes  (cost  118 )
0.351 * * [simplify]: iteration  3 :  5001  enodes  (cost  118 )
0.352 * [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))
0.353 * * * [progress]: adding candidates to table
0.384 * * [progress]: iteration 3 / 4
0.384 * * * [progress]: picking best candidate
0.386 * * * * [pick]: Picked  #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>
0.386 * * * [progress]: localizing error
0.391 * * * [progress]: generating rewritten candidates
0.391 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.399 * * * [progress]: generating series expansions
0.399 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.399 * [approximate]: Taking taylor expansion of (* -1/2 (/ y x)) in (y x) around 0
0.399 * [taylor]: Taking taylor expansion of (* -1/2 (/ y x)) in x
0.399 * [taylor]: Taking taylor expansion of -1/2 in x
0.399 * [taylor]: Taking taylor expansion of (/ y x) in x
0.399 * [taylor]: Taking taylor expansion of y in x
0.399 * [taylor]: Taking taylor expansion of x in x
0.399 * [taylor]: Taking taylor expansion of (* -1/2 (/ y x)) in y
0.399 * [taylor]: Taking taylor expansion of -1/2 in y
0.399 * [taylor]: Taking taylor expansion of (/ y x) in y
0.399 * [taylor]: Taking taylor expansion of y in y
0.399 * [taylor]: Taking taylor expansion of x in y
0.399 * [taylor]: Taking taylor expansion of (* -1/2 (/ y x)) in y
0.399 * [taylor]: Taking taylor expansion of -1/2 in y
0.399 * [taylor]: Taking taylor expansion of (/ y x) in y
0.399 * [taylor]: Taking taylor expansion of y in y
0.399 * [taylor]: Taking taylor expansion of x in y
0.399 * [taylor]: Taking taylor expansion of (/ -1/2 x) in x
0.399 * [taylor]: Taking taylor expansion of -1/2 in x
0.399 * [taylor]: Taking taylor expansion of x in x
0.400 * [taylor]: Taking taylor expansion of 0 in x
0.400 * [taylor]: Taking taylor expansion of 0 in x
0.400 * [taylor]: Taking taylor expansion of 0 in x
0.400 * [approximate]: Taking taylor expansion of (* -1/2 (/ x y)) in (y x) around 0
0.400 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in x
0.400 * [taylor]: Taking taylor expansion of -1/2 in x
0.400 * [taylor]: Taking taylor expansion of (/ x y) in x
0.400 * [taylor]: Taking taylor expansion of x in x
0.400 * [taylor]: Taking taylor expansion of y in x
0.400 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
0.400 * [taylor]: Taking taylor expansion of -1/2 in y
0.400 * [taylor]: Taking taylor expansion of (/ x y) in y
0.400 * [taylor]: Taking taylor expansion of x in y
0.400 * [taylor]: Taking taylor expansion of y in y
0.400 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
0.400 * [taylor]: Taking taylor expansion of -1/2 in y
0.400 * [taylor]: Taking taylor expansion of (/ x y) in y
0.400 * [taylor]: Taking taylor expansion of x in y
0.400 * [taylor]: Taking taylor expansion of y in y
0.400 * [taylor]: Taking taylor expansion of (* -1/2 x) in x
0.400 * [taylor]: Taking taylor expansion of -1/2 in x
0.400 * [taylor]: Taking taylor expansion of x in x
0.401 * [taylor]: Taking taylor expansion of 0 in x
0.401 * [taylor]: Taking taylor expansion of 0 in x
0.401 * [taylor]: Taking taylor expansion of 0 in x
0.401 * [approximate]: Taking taylor expansion of (* -1/2 (/ x y)) in (y x) around 0
0.401 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in x
0.401 * [taylor]: Taking taylor expansion of -1/2 in x
0.401 * [taylor]: Taking taylor expansion of (/ x y) in x
0.401 * [taylor]: Taking taylor expansion of x in x
0.401 * [taylor]: Taking taylor expansion of y in x
0.401 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
0.401 * [taylor]: Taking taylor expansion of -1/2 in y
0.401 * [taylor]: Taking taylor expansion of (/ x y) in y
0.401 * [taylor]: Taking taylor expansion of x in y
0.401 * [taylor]: Taking taylor expansion of y in y
0.401 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
0.401 * [taylor]: Taking taylor expansion of -1/2 in y
0.401 * [taylor]: Taking taylor expansion of (/ x y) in y
0.401 * [taylor]: Taking taylor expansion of x in y
0.401 * [taylor]: Taking taylor expansion of y in y
0.401 * [taylor]: Taking taylor expansion of (* -1/2 x) in x
0.401 * [taylor]: Taking taylor expansion of -1/2 in x
0.402 * [taylor]: Taking taylor expansion of x in x
0.402 * [taylor]: Taking taylor expansion of 0 in x
0.402 * [taylor]: Taking taylor expansion of 0 in x
0.402 * [taylor]: Taking taylor expansion of 0 in x
0.402 * * * [progress]: simplifying candidates
0.403 * [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))
0.406 * * [simplify]: iteration  0 :  164  enodes  (cost  128 )
0.410 * * [simplify]: iteration  1 :  727  enodes  (cost  118 )
0.424 * * [simplify]: iteration  2 :  2950  enodes  (cost  118 )
0.467 * * [simplify]: iteration  3 :  5001  enodes  (cost  118 )
0.468 * [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))
0.468 * * * [progress]: adding candidates to table
0.500 * [progress]: [Phase 3 of 3] Extracting.
0.500 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))>)
0.501 * * * [regime-changes]: Trying 5 branch expressions: ((* x x) (+ (* x x) y) (sqrt (+ (* x x) y)) y x)
0.501 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))>)
0.536 * * * * [regimes]: Trying to branch on (+ (* x x) y) from (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))>)
0.576 * * * * [regimes]: Trying to branch on (sqrt (+ (* x x) y)) from (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))>)
0.619 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))>)
0.659 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))>)
0.703 * * * [regime]: Found split indices: #<option (#s(si 1 40) #s(si 0 209) #s(si 2 255))>
0.704 * [binary-search]: Improving bounds with binary search for x and (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))>)
0.801 * [regimes]: Found splitpoints: (#s(sp 1 x -1.340717776387313e+154) #s(sp 0 x 3.473385101705896e+131) #s(sp 2 x +nan.0)) , with alts (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))>)
0.801 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (if (<= x -1.340717776387313e+154) (- (* -1/2 (/ y x)) x) (if (<= x 3.473385101705896e+131) (sqrt (+ (* x x) y)) (+ x (* 1/2 (/ y x)))))
0.803 * * [simplify]: iteration  0 :  22  enodes  (cost  9 )
0.803 * * [simplify]: iteration  1 :  22  enodes  (cost  9 )
0.803 * [simplify]: Simplified to:
   (if (<= x -1.340717776387313e+154) (- (* -1/2 (/ y x)) x) (if (<= x 3.473385101705896e+131) (sqrt (+ (* x x) y)) (+ x (* 1/2 (/ y x)))))
1.607 * [regime-testing]: End program error score: 0.03740048109626521
1.700 * [regime-testing]: Target error score: 0.3831060070533308