39.310 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.079 * * * [progress]: [2/2] Setting up program.
0.082 * [progress]: [Phase 2 of 3] Improving.
0.082 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sqrt (+ (* x x) y))
0.085 * * [simplify]: iteration  0 :  18  enodes  (cost  6 )
0.085 * * [simplify]: iteration  1 :  18  enodes  (cost  6 )
0.085 * [simplify]: Simplified to:
   (sqrt (+ (* x x) y))
0.085 * * [progress]: iteration 1 / 4
0.085 * * * [progress]: picking best candidate
0.088 * * * * [pick]: Picked  #<alt (λ (x y) (sqrt (+ (* x x) y)))>
0.088 * * * [progress]: localizing error
0.092 * * * [progress]: generating rewritten candidates
0.092 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.096 * * * [progress]: generating series expansions
0.096 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.096 * [approximate]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in (x y) around 0
0.097 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in y
0.097 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in y
0.097 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.097 * [taylor]: Taking taylor expansion of x in y
0.097 * [taylor]: Taking taylor expansion of y in y
0.097 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in x
0.097 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.097 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.097 * [taylor]: Taking taylor expansion of x in x
0.097 * [taylor]: Taking taylor expansion of y in x
0.097 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in x
0.097 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.097 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.097 * [taylor]: Taking taylor expansion of x in x
0.097 * [taylor]: Taking taylor expansion of y in x
0.097 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.097 * [taylor]: Taking taylor expansion of y in y
0.097 * [taylor]: Taking taylor expansion of 0 in y
0.097 * [taylor]: Taking taylor expansion of (* 1/2 (sqrt (/ 1 y))) in y
0.097 * [taylor]: Taking taylor expansion of 1/2 in y
0.097 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.097 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.097 * [taylor]: Taking taylor expansion of y in y
0.098 * [approximate]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.098 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in y
0.098 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.098 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.098 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.098 * [taylor]: Taking taylor expansion of x in y
0.098 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.098 * [taylor]: Taking taylor expansion of y in y
0.098 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.098 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.098 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.098 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.098 * [taylor]: Taking taylor expansion of x in x
0.098 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.098 * [taylor]: Taking taylor expansion of y in x
0.099 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.099 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.099 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.099 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.099 * [taylor]: Taking taylor expansion of x in x
0.099 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.099 * [taylor]: Taking taylor expansion of y in x
0.099 * [taylor]: Taking taylor expansion of 1 in y
0.099 * [taylor]: Taking taylor expansion of 0 in y
0.099 * [taylor]: Taking taylor expansion of (/ 1/2 y) in y
0.099 * [taylor]: Taking taylor expansion of 1/2 in y
0.099 * [taylor]: Taking taylor expansion of y in y
0.099 * [taylor]: Taking taylor expansion of 0 in y
0.100 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.100 * [taylor]: Taking taylor expansion of -1/8 in y
0.100 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.100 * [taylor]: Taking taylor expansion of y in y
0.100 * [approximate]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.100 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in y
0.100 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.100 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.100 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.100 * [taylor]: Taking taylor expansion of x in y
0.100 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.100 * [taylor]: Taking taylor expansion of y in y
0.100 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.100 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.100 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.100 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.100 * [taylor]: Taking taylor expansion of x in x
0.100 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.100 * [taylor]: Taking taylor expansion of y in x
0.100 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.100 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.100 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.101 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.101 * [taylor]: Taking taylor expansion of x in x
0.101 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.101 * [taylor]: Taking taylor expansion of y in x
0.101 * [taylor]: Taking taylor expansion of 1 in y
0.101 * [taylor]: Taking taylor expansion of 0 in y
0.101 * [taylor]: Taking taylor expansion of (/ -1/2 y) in y
0.101 * [taylor]: Taking taylor expansion of -1/2 in y
0.101 * [taylor]: Taking taylor expansion of y in y
0.101 * [taylor]: Taking taylor expansion of 0 in y
0.102 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.102 * [taylor]: Taking taylor expansion of -1/8 in y
0.102 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.102 * [taylor]: Taking taylor expansion of y in y
0.102 * * * [progress]: simplifying candidates
0.102 * [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)))
  (+ (* (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))))
0.142 * * [simplify]: iteration  0 :  5112  enodes  (cost  159 )
0.143 * [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)))
  (+ (* y (* y (pow NAN 3))) (* NAN (+ y (* x (* x 1/2)))))
  (+ x (* y (/ 1/2 x)))
  (- (* y (/ -1/2 x)) x)
0.143 * * * [progress]: adding candidates to table
0.168 * * [progress]: iteration 2 / 4
0.169 * * * [progress]: picking best candidate
0.173 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (* y (/ 1/2 x))))>
0.173 * * * [progress]: localizing error
0.178 * * * [progress]: generating rewritten candidates
0.178 * * * * [progress]: [ 1 / 2 ] rewriting at (2 2)
0.184 * * * * [progress]: [ 2 / 2 ] rewriting at (2)
0.189 * * * [progress]: generating series expansions
0.189 * * * * [progress]: [ 1 / 2 ] generating series at (2 2)
0.189 * [approximate]: Taking taylor expansion of (* 1/2 (/ y x)) in (y x) around 0
0.190 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in x
0.190 * [taylor]: Taking taylor expansion of 1/2 in x
0.190 * [taylor]: Taking taylor expansion of (/ y x) in x
0.190 * [taylor]: Taking taylor expansion of y in x
0.190 * [taylor]: Taking taylor expansion of x in x
0.190 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
0.190 * [taylor]: Taking taylor expansion of 1/2 in y
0.190 * [taylor]: Taking taylor expansion of (/ y x) in y
0.190 * [taylor]: Taking taylor expansion of y in y
0.190 * [taylor]: Taking taylor expansion of x in y
0.190 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
0.190 * [taylor]: Taking taylor expansion of 1/2 in y
0.190 * [taylor]: Taking taylor expansion of (/ y x) in y
0.190 * [taylor]: Taking taylor expansion of y in y
0.190 * [taylor]: Taking taylor expansion of x 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
0.191 * [approximate]: Taking taylor expansion of (* 1/2 (/ x y)) in (y x) around 0
0.191 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.191 * [taylor]: Taking taylor expansion of 1/2 in x
0.191 * [taylor]: Taking taylor expansion of (/ x y) in x
0.191 * [taylor]: Taking taylor expansion of x in x
0.191 * [taylor]: Taking taylor expansion of y in x
0.191 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.191 * [taylor]: Taking taylor expansion of 1/2 in y
0.191 * [taylor]: Taking taylor expansion of (/ x y) in y
0.191 * [taylor]: Taking taylor expansion of x in y
0.191 * [taylor]: Taking taylor expansion of y in y
0.191 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.191 * [taylor]: Taking taylor expansion of 1/2 in y
0.191 * [taylor]: Taking taylor expansion of (/ x y) in y
0.191 * [taylor]: Taking taylor expansion of x in y
0.191 * [taylor]: Taking taylor expansion of y in y
0.191 * [taylor]: Taking taylor expansion of (* 1/2 x) in x
0.191 * [taylor]: Taking taylor expansion of 1/2 in x
0.191 * [taylor]: Taking taylor expansion of x in x
0.191 * [taylor]: Taking taylor expansion of 0 in x
0.191 * [taylor]: Taking taylor expansion of 0 in x
0.191 * [taylor]: Taking taylor expansion of 0 in x
0.191 * [approximate]: Taking taylor expansion of (* 1/2 (/ x y)) in (y x) around 0
0.191 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.192 * [taylor]: Taking taylor expansion of 1/2 in x
0.192 * [taylor]: Taking taylor expansion of (/ x y) in x
0.192 * [taylor]: Taking taylor expansion of x in x
0.192 * [taylor]: Taking taylor expansion of y in x
0.192 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.192 * [taylor]: Taking taylor expansion of 1/2 in y
0.192 * [taylor]: Taking taylor expansion of (/ x y) in y
0.192 * [taylor]: Taking taylor expansion of x in y
0.192 * [taylor]: Taking taylor expansion of y in y
0.192 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.192 * [taylor]: Taking taylor expansion of 1/2 in y
0.192 * [taylor]: Taking taylor expansion of (/ x y) in y
0.192 * [taylor]: Taking taylor expansion of x in y
0.192 * [taylor]: Taking taylor expansion of y in y
0.192 * [taylor]: Taking taylor expansion of (* 1/2 x) in x
0.192 * [taylor]: Taking taylor expansion of 1/2 in x
0.192 * [taylor]: Taking taylor expansion of x in x
0.192 * [taylor]: Taking taylor expansion of 0 in x
0.192 * [taylor]: Taking taylor expansion of 0 in x
0.192 * [taylor]: Taking taylor expansion of 0 in x
0.192 * * * * [progress]: [ 2 / 2 ] generating series at (2)
0.192 * [approximate]: Taking taylor expansion of (+ x (* 1/2 (/ y x))) in (x y) around 0
0.193 * [taylor]: Taking taylor expansion of (+ x (* 1/2 (/ y x))) in y
0.193 * [taylor]: Taking taylor expansion of x in y
0.193 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
0.193 * [taylor]: Taking taylor expansion of 1/2 in y
0.193 * [taylor]: Taking taylor expansion of (/ y x) in y
0.193 * [taylor]: Taking taylor expansion of y in y
0.193 * [taylor]: Taking taylor expansion of x in y
0.193 * [taylor]: Taking taylor expansion of (+ x (* 1/2 (/ y x))) in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in x
0.193 * [taylor]: Taking taylor expansion of 1/2 in x
0.193 * [taylor]: Taking taylor expansion of (/ y x) in x
0.193 * [taylor]: Taking taylor expansion of y in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of (+ x (* 1/2 (/ y x))) in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in x
0.193 * [taylor]: Taking taylor expansion of 1/2 in x
0.193 * [taylor]: Taking taylor expansion of (/ y x) in x
0.193 * [taylor]: Taking taylor expansion of y in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of (* 1/2 y) in y
0.193 * [taylor]: Taking taylor expansion of 1/2 in y
0.193 * [taylor]: Taking taylor expansion of y in y
0.193 * [taylor]: Taking taylor expansion of 0 in y
0.193 * [taylor]: Taking taylor expansion of 1 in y
0.193 * [taylor]: Taking taylor expansion of 0 in y
0.194 * [approximate]: Taking taylor expansion of (+ (* 1/2 (/ x y)) (/ 1 x)) in (x y) around 0
0.194 * [taylor]: Taking taylor expansion of (+ (* 1/2 (/ x y)) (/ 1 x)) in y
0.194 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.194 * [taylor]: Taking taylor expansion of 1/2 in y
0.194 * [taylor]: Taking taylor expansion of (/ x y) in y
0.194 * [taylor]: Taking taylor expansion of x in y
0.194 * [taylor]: Taking taylor expansion of y in y
0.194 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.194 * [taylor]: Taking taylor expansion of x in y
0.194 * [taylor]: Taking taylor expansion of (+ (* 1/2 (/ x y)) (/ 1 x)) in x
0.194 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.194 * [taylor]: Taking taylor expansion of 1/2 in x
0.194 * [taylor]: Taking taylor expansion of (/ x y) in x
0.194 * [taylor]: Taking taylor expansion of x in x
0.194 * [taylor]: Taking taylor expansion of y in x
0.194 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.194 * [taylor]: Taking taylor expansion of x in x
0.194 * [taylor]: Taking taylor expansion of (+ (* 1/2 (/ x y)) (/ 1 x)) in x
0.194 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.194 * [taylor]: Taking taylor expansion of 1/2 in x
0.194 * [taylor]: Taking taylor expansion of (/ x y) in x
0.194 * [taylor]: Taking taylor expansion of x in x
0.194 * [taylor]: Taking taylor expansion of y in x
0.194 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.194 * [taylor]: Taking taylor expansion of x in x
0.194 * [taylor]: Taking taylor expansion of 1 in y
0.194 * [taylor]: Taking taylor expansion of 0 in y
0.194 * [taylor]: Taking taylor expansion of (* 1/2 (/ 1 y)) in y
0.194 * [taylor]: Taking taylor expansion of 1/2 in y
0.194 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.194 * [taylor]: Taking taylor expansion of y in y
0.195 * [taylor]: Taking taylor expansion of 0 in y
0.195 * [taylor]: Taking taylor expansion of 0 in y
0.195 * [approximate]: Taking taylor expansion of (- (* 1/2 (/ x y)) (/ 1 x)) in (x y) around 0
0.195 * [taylor]: Taking taylor expansion of (- (* 1/2 (/ x y)) (/ 1 x)) in y
0.195 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.195 * [taylor]: Taking taylor expansion of 1/2 in y
0.195 * [taylor]: Taking taylor expansion of (/ x y) in y
0.195 * [taylor]: Taking taylor expansion of x in y
0.195 * [taylor]: Taking taylor expansion of y in y
0.195 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.195 * [taylor]: Taking taylor expansion of x in y
0.195 * [taylor]: Taking taylor expansion of (- (* 1/2 (/ x y)) (/ 1 x)) in x
0.195 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.195 * [taylor]: Taking taylor expansion of 1/2 in x
0.195 * [taylor]: Taking taylor expansion of (/ x y) in x
0.195 * [taylor]: Taking taylor expansion of x in x
0.195 * [taylor]: Taking taylor expansion of y in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.195 * [taylor]: Taking taylor expansion of x in x
0.195 * [taylor]: Taking taylor expansion of (- (* 1/2 (/ x y)) (/ 1 x)) in x
0.195 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.195 * [taylor]: Taking taylor expansion of 1/2 in x
0.195 * [taylor]: Taking taylor expansion of (/ x y) in x
0.195 * [taylor]: Taking taylor expansion of x in x
0.195 * [taylor]: Taking taylor expansion of y in x
0.195 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.196 * [taylor]: Taking taylor expansion of x in x
0.196 * [taylor]: Taking taylor expansion of (neg 1) in y
0.196 * [taylor]: Taking taylor expansion of 1 in y
0.196 * [taylor]: Taking taylor expansion of 0 in y
0.196 * [taylor]: Taking taylor expansion of (* 1/2 (/ 1 y)) in y
0.196 * [taylor]: Taking taylor expansion of 1/2 in y
0.196 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.196 * [taylor]: Taking taylor expansion of y in y
0.196 * [taylor]: Taking taylor expansion of 0 in y
0.196 * [taylor]: Taking taylor expansion of 0 in y
0.196 * * * [progress]: simplifying candidates
0.197 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* y (/ 1/2 x))
  (+ (log y) (- (log 1/2) (log x)))
  (+ (log y) (log (/ 1/2 x)))
  (log (* y (/ 1/2 x)))
  (exp (* y (/ 1/2 x)))
  (* (* (* y y) y) (/ (* (* 1/2 1/2) 1/2) (* (* x x) x)))
  (* (* (* y y) y) (* (* (/ 1/2 x) (/ 1/2 x)) (/ 1/2 x)))
  (* (cbrt (* y (/ 1/2 x))) (cbrt (* y (/ 1/2 x))))
  (cbrt (* y (/ 1/2 x)))
  (* (* (* y (/ 1/2 x)) (* y (/ 1/2 x))) (* y (/ 1/2 x)))
  (sqrt (* y (/ 1/2 x)))
  (sqrt (* y (/ 1/2 x)))
  (* (sqrt y) (sqrt (/ 1/2 x)))
  (* (sqrt y) (sqrt (/ 1/2 x)))
  (* (sqrt y) (/ (sqrt 1/2) (sqrt x)))
  (* (sqrt y) (/ (sqrt 1/2) (sqrt x)))
  (* y (* (cbrt (/ 1/2 x)) (cbrt (/ 1/2 x))))
  (* y (sqrt (/ 1/2 x)))
  (* y (/ (* (cbrt 1/2) (cbrt 1/2)) (* (cbrt x) (cbrt x))))
  (* y (/ (* (cbrt 1/2) (cbrt 1/2)) (sqrt x)))
  (* y (/ (* (cbrt 1/2) (cbrt 1/2)) 1))
  (* y (/ (sqrt 1/2) (* (cbrt x) (cbrt x))))
  (* y (/ (sqrt 1/2) (sqrt x)))
  (* y (/ (sqrt 1/2) 1))
  (* y (/ 1 (* (cbrt x) (cbrt x))))
  (* y (/ 1 (sqrt x)))
  (* y (/ 1 1))
  (* y 1)
  (* y 1/2)
  (* (cbrt y) (/ 1/2 x))
  (* (sqrt y) (/ 1/2 x))
  (* y (/ 1/2 x))
  (* y 1/2)
  (* (exp x) (exp (* y (/ 1/2 x))))
  (log (+ x (* y (/ 1/2 x))))
  (exp (+ x (* y (/ 1/2 x))))
  (* (cbrt (+ x (* y (/ 1/2 x)))) (cbrt (+ x (* y (/ 1/2 x)))))
  (cbrt (+ x (* y (/ 1/2 x))))
  (* (* (+ x (* y (/ 1/2 x))) (+ x (* y (/ 1/2 x)))) (+ x (* y (/ 1/2 x))))
  (sqrt (+ x (* y (/ 1/2 x))))
  (sqrt (+ x (* y (/ 1/2 x))))
  (+ (pow x 3) (pow (* y (/ 1/2 x)) 3))
  (+ (* x x) (- (* (* y (/ 1/2 x)) (* y (/ 1/2 x))) (* x (* y (/ 1/2 x)))))
  (- (* x x) (* (* y (/ 1/2 x)) (* y (/ 1/2 x))))
  (- x (* y (/ 1/2 x)))
  (* 1/2 (/ y x))
  (* 1/2 (/ y x))
  (* 1/2 (/ y x))
  (+ x (* 1/2 (/ y x)))
  (+ x (* 1/2 (/ y x)))
  (+ x (* 1/2 (/ y x)))
0.244 * * [simplify]: iteration  0 :  4943  enodes  (cost  372 )
0.245 * * [simplify]: iteration  1 :  4943  enodes  (cost  372 )
0.246 * [simplify]: Simplified to:
   (* y (/ 1/2 x))
  (log (* y (/ 1/2 x)))
  (log (* y (/ 1/2 x)))
  (log (* y (/ 1/2 x)))
  (sqrt (exp (/ y x)))
  (* 1/8 (pow (/ y x) 3))
  (* 1/8 (pow (/ y x) 3))
  (* (cbrt (* y (/ 1/2 x))) (cbrt (* y (/ 1/2 x))))
  (cbrt (* y (/ 1/2 x)))
  (* 1/8 (pow (/ y x) 3))
  (sqrt (* y (/ 1/2 x)))
  (sqrt (* y (/ 1/2 x)))
  (* (sqrt y) (sqrt (/ 1/2 x)))
  (* (sqrt y) (sqrt (/ 1/2 x)))
  (* (sqrt y) (/ (sqrt 1/2) (sqrt x)))
  (* (sqrt y) (/ (sqrt 1/2) (sqrt x)))
  (* y (* (cbrt (/ 1/2 x)) (cbrt (/ 1/2 x))))
  (* y (sqrt (/ 1/2 x)))
  (* y (* (cbrt 1/2) (/ (cbrt 1/2) (* (cbrt x) (cbrt x)))))
  (* y (* (cbrt 1/2) (/ (cbrt 1/2) (sqrt x))))
  (* y (* (cbrt 1/2) (cbrt 1/2)))
  (* y (/ (sqrt 1/2) (* (cbrt x) (cbrt x))))
  (* y (/ (sqrt 1/2) (sqrt x)))
  (* y (sqrt 1/2))
  (/ y (* (cbrt x) (cbrt x)))
  (/ y (sqrt x))
  y
  y
  (* y 1/2)
  (* 1/2 (/ (cbrt y) x))
  (* 1/2 (/ (sqrt y) x))
  (* y (/ 1/2 x))
  (* y 1/2)
  (* (sqrt (exp (/ y x))) (exp x))
  (log (+ x (* y (/ 1/2 x))))
  (* (sqrt (exp (/ y x))) (exp x))
  (* (cbrt (+ x (* y (/ 1/2 x)))) (cbrt (+ x (* y (/ 1/2 x)))))
  (cbrt (+ x (* y (/ 1/2 x))))
  (pow (+ x (* y (/ 1/2 x))) 3)
  (sqrt (+ x (* y (/ 1/2 x))))
  (sqrt (+ x (* y (/ 1/2 x))))
  (+ (pow x 3) (* 1/8 (pow (/ y x) 3)))
  (+ (* x x) (+ (* y (* y (/ 1/4 (* x x)))) (* y -1/2)))
  (+ (* x x) (* y (* y (/ -1/4 (* x x)))))
  (+ x (* y (/ -1/2 x)))
  (* y (/ 1/2 x))
  (* y (/ 1/2 x))
  (* y (/ 1/2 x))
  (+ x (* y (/ 1/2 x)))
  (+ x (* y (/ 1/2 x)))
  (+ x (* y (/ 1/2 x)))
0.246 * * * [progress]: adding candidates to table
0.301 * * [progress]: iteration 3 / 4
0.301 * * * [progress]: picking best candidate
0.304 * * * * [pick]: Picked  #<alt (λ (x y) (- (* y (/ -1/2 x)) x))>
0.304 * * * [progress]: localizing error
0.309 * * * [progress]: generating rewritten candidates
0.309 * * * * [progress]: [ 1 / 2 ] rewriting at (2 1)
0.315 * * * * [progress]: [ 2 / 2 ] rewriting at (2)
0.321 * * * [progress]: generating series expansions
0.321 * * * * [progress]: [ 1 / 2 ] generating series at (2 1)
0.321 * [approximate]: Taking taylor expansion of (* -1/2 (/ y x)) in (y x) around 0
0.321 * [taylor]: Taking taylor expansion of (* -1/2 (/ y x)) in x
0.321 * [taylor]: Taking taylor expansion of -1/2 in x
0.321 * [taylor]: Taking taylor expansion of (/ y x) in x
0.321 * [taylor]: Taking taylor expansion of y in x
0.321 * [taylor]: Taking taylor expansion of x in x
0.321 * [taylor]: Taking taylor expansion of (* -1/2 (/ y x)) in y
0.321 * [taylor]: Taking taylor expansion of -1/2 in y
0.321 * [taylor]: Taking taylor expansion of (/ y x) in y
0.321 * [taylor]: Taking taylor expansion of y in y
0.321 * [taylor]: Taking taylor expansion of x in y
0.321 * [taylor]: Taking taylor expansion of (* -1/2 (/ y x)) in y
0.321 * [taylor]: Taking taylor expansion of -1/2 in y
0.321 * [taylor]: Taking taylor expansion of (/ y x) in y
0.321 * [taylor]: Taking taylor expansion of y in y
0.321 * [taylor]: Taking taylor expansion of x in y
0.321 * [taylor]: Taking taylor expansion of (/ -1/2 x) in x
0.321 * [taylor]: Taking taylor expansion of -1/2 in x
0.321 * [taylor]: Taking taylor expansion of x in x
0.321 * [taylor]: Taking taylor expansion of 0 in x
0.322 * [taylor]: Taking taylor expansion of 0 in x
0.322 * [taylor]: Taking taylor expansion of 0 in x
0.322 * [approximate]: Taking taylor expansion of (* -1/2 (/ x y)) in (y x) around 0
0.322 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in x
0.322 * [taylor]: Taking taylor expansion of -1/2 in x
0.322 * [taylor]: Taking taylor expansion of (/ x y) in x
0.322 * [taylor]: Taking taylor expansion of x in x
0.322 * [taylor]: Taking taylor expansion of y in x
0.322 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
0.322 * [taylor]: Taking taylor expansion of -1/2 in y
0.322 * [taylor]: Taking taylor expansion of (/ x y) in y
0.322 * [taylor]: Taking taylor expansion of x in y
0.322 * [taylor]: Taking taylor expansion of y in y
0.322 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
0.322 * [taylor]: Taking taylor expansion of -1/2 in y
0.322 * [taylor]: Taking taylor expansion of (/ x y) in y
0.322 * [taylor]: Taking taylor expansion of x in y
0.322 * [taylor]: Taking taylor expansion of y in y
0.322 * [taylor]: Taking taylor expansion of (* -1/2 x) in x
0.322 * [taylor]: Taking taylor expansion of -1/2 in x
0.322 * [taylor]: Taking taylor expansion of x in x
0.323 * [taylor]: Taking taylor expansion of 0 in x
0.323 * [taylor]: Taking taylor expansion of 0 in x
0.323 * [taylor]: Taking taylor expansion of 0 in x
0.323 * [approximate]: Taking taylor expansion of (* -1/2 (/ x y)) in (y x) around 0
0.323 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in x
0.323 * [taylor]: Taking taylor expansion of -1/2 in x
0.323 * [taylor]: Taking taylor expansion of (/ x y) in x
0.323 * [taylor]: Taking taylor expansion of x in x
0.323 * [taylor]: Taking taylor expansion of y in x
0.323 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
0.323 * [taylor]: Taking taylor expansion of -1/2 in y
0.323 * [taylor]: Taking taylor expansion of (/ x y) in y
0.323 * [taylor]: Taking taylor expansion of x in y
0.323 * [taylor]: Taking taylor expansion of y in y
0.323 * [taylor]: Taking taylor expansion of (* -1/2 (/ x y)) in y
0.323 * [taylor]: Taking taylor expansion of -1/2 in y
0.323 * [taylor]: Taking taylor expansion of (/ x y) in y
0.323 * [taylor]: Taking taylor expansion of x in y
0.323 * [taylor]: Taking taylor expansion of y in y
0.323 * [taylor]: Taking taylor expansion of (* -1/2 x) in x
0.323 * [taylor]: Taking taylor expansion of -1/2 in x
0.323 * [taylor]: Taking taylor expansion of x in x
0.323 * [taylor]: Taking taylor expansion of 0 in x
0.324 * [taylor]: Taking taylor expansion of 0 in x
0.324 * [taylor]: Taking taylor expansion of 0 in x
0.324 * * * * [progress]: [ 2 / 2 ] generating series at (2)
0.324 * [approximate]: Taking taylor expansion of (neg (+ x (* 1/2 (/ y x)))) in (y x) around 0
0.324 * [taylor]: Taking taylor expansion of (neg (+ x (* 1/2 (/ y x)))) in x
0.324 * [taylor]: Taking taylor expansion of (+ x (* 1/2 (/ y x))) in x
0.324 * [taylor]: Taking taylor expansion of x in x
0.324 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in x
0.324 * [taylor]: Taking taylor expansion of 1/2 in x
0.324 * [taylor]: Taking taylor expansion of (/ y x) in x
0.324 * [taylor]: Taking taylor expansion of y in x
0.324 * [taylor]: Taking taylor expansion of x in x
0.324 * [taylor]: Taking taylor expansion of (neg (+ x (* 1/2 (/ y x)))) in y
0.324 * [taylor]: Taking taylor expansion of (+ x (* 1/2 (/ y x))) in y
0.324 * [taylor]: Taking taylor expansion of x in y
0.324 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
0.324 * [taylor]: Taking taylor expansion of 1/2 in y
0.324 * [taylor]: Taking taylor expansion of (/ y x) in y
0.324 * [taylor]: Taking taylor expansion of y in y
0.324 * [taylor]: Taking taylor expansion of x in y
0.324 * [taylor]: Taking taylor expansion of (neg (+ x (* 1/2 (/ y x)))) in y
0.324 * [taylor]: Taking taylor expansion of (+ x (* 1/2 (/ y x))) in y
0.324 * [taylor]: Taking taylor expansion of x in y
0.324 * [taylor]: Taking taylor expansion of (* 1/2 (/ y x)) in y
0.324 * [taylor]: Taking taylor expansion of 1/2 in y
0.324 * [taylor]: Taking taylor expansion of (/ y x) in y
0.324 * [taylor]: Taking taylor expansion of y in y
0.324 * [taylor]: Taking taylor expansion of x in y
0.324 * [taylor]: Taking taylor expansion of (neg x) in x
0.324 * [taylor]: Taking taylor expansion of x in x
0.325 * [taylor]: Taking taylor expansion of (neg (* 1/2 (/ 1 x))) in x
0.325 * [taylor]: Taking taylor expansion of (* 1/2 (/ 1 x)) in x
0.325 * [taylor]: Taking taylor expansion of 1/2 in x
0.325 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.325 * [taylor]: Taking taylor expansion of x in x
0.325 * [taylor]: Taking taylor expansion of 0 in x
0.325 * [taylor]: Taking taylor expansion of 0 in x
0.325 * [taylor]: Taking taylor expansion of 0 in x
0.326 * [approximate]: Taking taylor expansion of (neg (+ (* 1/2 (/ x y)) (/ 1 x))) in (y x) around 0
0.326 * [taylor]: Taking taylor expansion of (neg (+ (* 1/2 (/ x y)) (/ 1 x))) in x
0.326 * [taylor]: Taking taylor expansion of (+ (* 1/2 (/ x y)) (/ 1 x)) in x
0.326 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.326 * [taylor]: Taking taylor expansion of 1/2 in x
0.326 * [taylor]: Taking taylor expansion of (/ x y) in x
0.326 * [taylor]: Taking taylor expansion of x in x
0.326 * [taylor]: Taking taylor expansion of y in x
0.326 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.326 * [taylor]: Taking taylor expansion of x in x
0.326 * [taylor]: Taking taylor expansion of (neg (+ (* 1/2 (/ x y)) (/ 1 x))) in y
0.326 * [taylor]: Taking taylor expansion of (+ (* 1/2 (/ x y)) (/ 1 x)) in y
0.326 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.326 * [taylor]: Taking taylor expansion of 1/2 in y
0.326 * [taylor]: Taking taylor expansion of (/ x y) in y
0.326 * [taylor]: Taking taylor expansion of x in y
0.326 * [taylor]: Taking taylor expansion of y in y
0.326 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.326 * [taylor]: Taking taylor expansion of x in y
0.326 * [taylor]: Taking taylor expansion of (neg (+ (* 1/2 (/ x y)) (/ 1 x))) in y
0.326 * [taylor]: Taking taylor expansion of (+ (* 1/2 (/ x y)) (/ 1 x)) in y
0.326 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.326 * [taylor]: Taking taylor expansion of 1/2 in y
0.326 * [taylor]: Taking taylor expansion of (/ x y) in y
0.326 * [taylor]: Taking taylor expansion of x in y
0.326 * [taylor]: Taking taylor expansion of y in y
0.326 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.326 * [taylor]: Taking taylor expansion of x in y
0.326 * [taylor]: Taking taylor expansion of (neg (* 1/2 x)) in x
0.326 * [taylor]: Taking taylor expansion of (* 1/2 x) in x
0.326 * [taylor]: Taking taylor expansion of 1/2 in x
0.326 * [taylor]: Taking taylor expansion of x in x
0.326 * [taylor]: Taking taylor expansion of (neg (/ 1 x)) in x
0.326 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.326 * [taylor]: Taking taylor expansion of x in x
0.327 * [taylor]: Taking taylor expansion of 0 in x
0.327 * [taylor]: Taking taylor expansion of 0 in x
0.327 * [taylor]: Taking taylor expansion of 0 in x
0.327 * [approximate]: Taking taylor expansion of (- (/ 1 x) (* 1/2 (/ x y))) in (y x) around 0
0.327 * [taylor]: Taking taylor expansion of (- (/ 1 x) (* 1/2 (/ x y))) in x
0.327 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.327 * [taylor]: Taking taylor expansion of x in x
0.327 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in x
0.327 * [taylor]: Taking taylor expansion of 1/2 in x
0.327 * [taylor]: Taking taylor expansion of (/ x y) in x
0.328 * [taylor]: Taking taylor expansion of x in x
0.328 * [taylor]: Taking taylor expansion of y in x
0.328 * [taylor]: Taking taylor expansion of (- (/ 1 x) (* 1/2 (/ x y))) in y
0.328 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.328 * [taylor]: Taking taylor expansion of x in y
0.328 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.328 * [taylor]: Taking taylor expansion of 1/2 in y
0.328 * [taylor]: Taking taylor expansion of (/ x y) in y
0.328 * [taylor]: Taking taylor expansion of x in y
0.328 * [taylor]: Taking taylor expansion of y in y
0.328 * [taylor]: Taking taylor expansion of (- (/ 1 x) (* 1/2 (/ x y))) in y
0.328 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.328 * [taylor]: Taking taylor expansion of x in y
0.328 * [taylor]: Taking taylor expansion of (* 1/2 (/ x y)) in y
0.328 * [taylor]: Taking taylor expansion of 1/2 in y
0.328 * [taylor]: Taking taylor expansion of (/ x y) in y
0.328 * [taylor]: Taking taylor expansion of x in y
0.328 * [taylor]: Taking taylor expansion of y in y
0.328 * [taylor]: Taking taylor expansion of (neg (* 1/2 x)) in x
0.328 * [taylor]: Taking taylor expansion of (* 1/2 x) in x
0.328 * [taylor]: Taking taylor expansion of 1/2 in x
0.328 * [taylor]: Taking taylor expansion of x in x
0.328 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.328 * [taylor]: Taking taylor expansion of x in x
0.328 * [taylor]: Taking taylor expansion of 0 in x
0.329 * [taylor]: Taking taylor expansion of 0 in x
0.329 * [taylor]: Taking taylor expansion of 0 in x
0.329 * * * [progress]: simplifying candidates
0.330 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* y (/ -1/2 x))
  (+ (log y) (- (log -1/2) (log x)))
  (+ (log y) (log (/ -1/2 x)))
  (log (* y (/ -1/2 x)))
  (exp (* y (/ -1/2 x)))
  (* (* (* y y) y) (/ (* (* -1/2 -1/2) -1/2) (* (* x x) x)))
  (* (* (* y y) y) (* (* (/ -1/2 x) (/ -1/2 x)) (/ -1/2 x)))
  (* (cbrt (* y (/ -1/2 x))) (cbrt (* y (/ -1/2 x))))
  (cbrt (* y (/ -1/2 x)))
  (* (* (* y (/ -1/2 x)) (* y (/ -1/2 x))) (* y (/ -1/2 x)))
  (sqrt (* y (/ -1/2 x)))
  (sqrt (* y (/ -1/2 x)))
  (* (sqrt y) (sqrt (/ -1/2 x)))
  (* (sqrt y) (sqrt (/ -1/2 x)))
  (* (sqrt y) (/ (sqrt -1/2) (sqrt x)))
  (* (sqrt y) (/ (sqrt -1/2) (sqrt x)))
  (* y (* (cbrt (/ -1/2 x)) (cbrt (/ -1/2 x))))
  (* y (sqrt (/ -1/2 x)))
  (* y (/ (* (cbrt -1/2) (cbrt -1/2)) (* (cbrt x) (cbrt x))))
  (* y (/ (* (cbrt -1/2) (cbrt -1/2)) (sqrt x)))
  (* y (/ (* (cbrt -1/2) (cbrt -1/2)) 1))
  (* y (/ (sqrt -1/2) (* (cbrt x) (cbrt x))))
  (* y (/ (sqrt -1/2) (sqrt x)))
  (* y (/ (sqrt -1/2) 1))
  (* y (/ 1 (* (cbrt x) (cbrt x))))
  (* y (/ 1 (sqrt x)))
  (* y (/ 1 1))
  (* y 1)
  (* y -1/2)
  (* (cbrt y) (/ -1/2 x))
  (* (sqrt y) (/ -1/2 x))
  (* y (/ -1/2 x))
  (* y -1/2)
  (/ (exp (* y (/ -1/2 x))) (exp x))
  (log (- (* y (/ -1/2 x)) x))
  (exp (- (* y (/ -1/2 x)) x))
  (* (cbrt (- (* y (/ -1/2 x)) x)) (cbrt (- (* y (/ -1/2 x)) x)))
  (cbrt (- (* y (/ -1/2 x)) x))
  (* (* (- (* y (/ -1/2 x)) x) (- (* y (/ -1/2 x)) x)) (- (* y (/ -1/2 x)) x))
  (sqrt (- (* y (/ -1/2 x)) x))
  (sqrt (- (* y (/ -1/2 x)) x))
  (- (pow (* y (/ -1/2 x)) 3) (pow x 3))
  (+ (* (* y (/ -1/2 x)) (* y (/ -1/2 x))) (+ (* x x) (* (* y (/ -1/2 x)) x)))
  (neg x)
  (- (* (* y (/ -1/2 x)) (* y (/ -1/2 x))) (* x x))
  (+ (* y (/ -1/2 x)) x)
  (* -1/2 (/ y x))
  (* -1/2 (/ y x))
  (* -1/2 (/ y x))
  (neg (+ x (* 1/2 (/ y x))))
  (neg (+ x (* 1/2 (/ y x))))
  (neg (+ x (* 1/2 (/ y x))))
0.367 * * [simplify]: iteration  0 :  4917  enodes  (cost  373 )
0.367 * * [simplify]: iteration  1 :  4917  enodes  (cost  373 )
0.369 * [simplify]: Simplified to:
   (* y (/ -1/2 x))
  (log (* y (/ -1/2 x)))
  (log (* y (/ -1/2 x)))
  (log (* y (/ -1/2 x)))
  (pow (exp y) (/ -1/2 x))
  (* -1/8 (pow (/ y x) 3))
  (* -1/8 (pow (/ y x) 3))
  (* (cbrt (* y (/ -1/2 x))) (cbrt (* y (/ -1/2 x))))
  (cbrt (* y (/ -1/2 x)))
  (* -1/8 (pow (/ y x) 3))
  (sqrt (* y (/ -1/2 x)))
  (sqrt (* y (/ -1/2 x)))
  (* (sqrt y) (sqrt (/ -1/2 x)))
  (* (sqrt y) (sqrt (/ -1/2 x)))
  (* (sqrt y) (/ (sqrt -1/2) (sqrt x)))
  (* (sqrt y) (/ (sqrt -1/2) (sqrt x)))
  (* y (* (cbrt (/ -1/2 x)) (cbrt (/ -1/2 x))))
  (* y (sqrt (/ -1/2 x)))
  (* y (* (cbrt -1/2) (/ (cbrt -1/2) (* (cbrt x) (cbrt x)))))
  (* y (* (cbrt -1/2) (/ (cbrt -1/2) (sqrt x))))
  (* y (* (cbrt -1/2) (cbrt -1/2)))
  (* y (/ (sqrt -1/2) (* (cbrt x) (cbrt x))))
  (* y (/ (sqrt -1/2) (sqrt x)))
  (* y (sqrt -1/2))
  (/ y (* (cbrt x) (cbrt x)))
  (/ y (sqrt x))
  y
  y
  (* y -1/2)
  (* -1/2 (/ (cbrt y) x))
  (* -1/2 (/ (sqrt y) x))
  (* y (/ -1/2 x))
  (* y -1/2)
  (exp (- (* y (/ -1/2 x)) x))
  (log (- (* y (/ -1/2 x)) x))
  (exp (- (* y (/ -1/2 x)) x))
  (* (cbrt (- (* y (/ -1/2 x)) x)) (cbrt (- (* y (/ -1/2 x)) x)))
  (cbrt (- (* y (/ -1/2 x)) x))
  (pow (- (* y (/ -1/2 x)) x) 3)
  (sqrt (- (* y (/ -1/2 x)) x))
  (sqrt (- (* y (/ -1/2 x)) x))
  (- (* -1/8 (pow (/ y x) 3)) (pow x 3))
  (+ (* x x) (* y (+ (* y (/ 1/4 (* x x))) -1/2)))
  (neg x)
  (- (* y (* y (/ 1/4 (* x x)))) (* x x))
  (+ x (* y (/ -1/2 x)))
  (* y (/ -1/2 x))
  (* y (/ -1/2 x))
  (* y (/ -1/2 x))
  (- (* y (/ -1/2 x)) x)
  (- (* y (/ -1/2 x)) x)
  (- (* y (/ -1/2 x)) x)
0.369 * * * [progress]: adding candidates to table
0.425 * [progress]: [Phase 3 of 3] Extracting.
0.425 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (- (* y (/ -1/2 x)) x))> #<alt (λ (x y) (+ x (* y (/ 1/2 x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.425 * * * [regime-changes]: Trying 5 branch expressions: ((* x x) (+ (* x x) y) (sqrt (+ (* x x) y)) y x)
0.425 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (- (* y (/ -1/2 x)) x))> #<alt (λ (x y) (+ x (* y (/ 1/2 x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.460 * * * * [regimes]: Trying to branch on (+ (* x x) y) from (#<alt (λ (x y) (- (* y (/ -1/2 x)) x))> #<alt (λ (x y) (+ x (* y (/ 1/2 x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.495 * * * * [regimes]: Trying to branch on (sqrt (+ (* x x) y)) from (#<alt (λ (x y) (- (* y (/ -1/2 x)) x))> #<alt (λ (x y) (+ x (* y (/ 1/2 x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.537 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (- (* y (/ -1/2 x)) x))> #<alt (λ (x y) (+ x (* y (/ 1/2 x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.580 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (- (* y (/ -1/2 x)) x))> #<alt (λ (x y) (+ x (* y (/ 1/2 x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.645 * * * [regime]: Found split indices: #<option (#s(si 0 37) #s(si 2 198) #s(si 1 255))>
0.645 * [binary-search]: Improving bounds with binary search for x and (#<alt (λ (x y) (- (* y (/ -1/2 x)) x))> #<alt (λ (x y) (+ x (* y (/ 1/2 x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.676 * [regimes]: Found splitpoints: (#s(sp 0 x -1.3322553188714494e+154) #s(sp 2 x 1.1342193858949797e+138) #s(sp 1 x +nan.0)) , with alts (#<alt (λ (x y) (- (* y (/ -1/2 x)) x))> #<alt (λ (x y) (+ x (* y (/ 1/2 x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.676 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (if (<= x -1.3322553188714494e+154) (- (* y (/ -1/2 x)) x) (if (<= x 1.1342193858949797e+138) (sqrt (+ (* x x) y)) (+ x (* y (/ 1/2 x)))))
0.678 * * [simplify]: iteration  0 :  80  enodes  (cost  28 )
0.678 * * [simplify]: iteration  1 :  80  enodes  (cost  28 )
0.678 * [simplify]: Simplified to:
   (if (<= x -1.3322553188714494e+154) (- (* y (/ -1/2 x)) x) (if (<= x 1.1342193858949797e+138) (sqrt (+ y (* x x))) (+ x (* y (/ 1/2 x)))))
1.454 * [regime-testing]: End program error score: 0.025273734758847168
1.561 * [regime-testing]: Target error score: 0.5036711749986467