35.396 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.017 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.020 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sqrt (+ (* x x) y))
0.022 * * [simplify]: iteration  0 :  6  enodes  (cost  3 )
0.023 * * [simplify]: iteration  1 :  6  enodes  (cost  3 )
0.024 * [simplify]: Simplified to:
   (sqrt (+ (* x x) y))
0.024 * * [progress]: iteration 1 / 4
0.024 * * * [progress]: picking best candidate
0.026 * * * * [pick]: Picked  #<alt (λ (x y) (sqrt (+ (* x x) y)))>
0.026 * * * [progress]: localizing error
0.030 * * * [progress]: generating rewritten candidates
0.030 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.034 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
0.038 * * * [progress]: generating series expansions
0.038 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.038 * [approximate]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in (x y) around 0
0.038 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in y
0.038 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in y
0.038 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.038 * [taylor]: Taking taylor expansion of x in y
0.038 * [taylor]: Taking taylor expansion of y in y
0.039 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in x
0.039 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.039 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.039 * [taylor]: Taking taylor expansion of x in x
0.039 * [taylor]: Taking taylor expansion of y in x
0.039 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in x
0.039 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.039 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.039 * [taylor]: Taking taylor expansion of x in x
0.039 * [taylor]: Taking taylor expansion of y in x
0.039 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.039 * [taylor]: Taking taylor expansion of y in y
0.039 * [taylor]: Taking taylor expansion of 0 in y
0.039 * [taylor]: Taking taylor expansion of (* 1/2 (sqrt (/ 1 y))) in y
0.039 * [taylor]: Taking taylor expansion of 1/2 in y
0.039 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.039 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.039 * [taylor]: Taking taylor expansion of y in y
0.040 * [approximate]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.040 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in y
0.040 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.040 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.040 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.040 * [taylor]: Taking taylor expansion of x in y
0.040 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.040 * [taylor]: Taking taylor expansion of y in y
0.040 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.040 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.040 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.040 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.040 * [taylor]: Taking taylor expansion of x in x
0.040 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.040 * [taylor]: Taking taylor expansion of y in x
0.040 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.040 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.040 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.040 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.040 * [taylor]: Taking taylor expansion of x in x
0.041 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.041 * [taylor]: Taking taylor expansion of y in x
0.041 * [taylor]: Taking taylor expansion of 1 in y
0.041 * [taylor]: Taking taylor expansion of 0 in y
0.041 * [taylor]: Taking taylor expansion of (/ 1/2 y) in y
0.041 * [taylor]: Taking taylor expansion of 1/2 in y
0.041 * [taylor]: Taking taylor expansion of y in y
0.041 * [taylor]: Taking taylor expansion of 0 in y
0.042 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.042 * [taylor]: Taking taylor expansion of -1/8 in y
0.042 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.042 * [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
0.042 * [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
0.043 * [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 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
0.044 * [approximate]: Taking taylor expansion of (+ (pow x 2) y) in (x y) around 0
0.044 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in y
0.044 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.044 * [taylor]: Taking taylor expansion of x in y
0.044 * [taylor]: Taking taylor expansion of y in y
0.044 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) 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 y in x
0.044 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) 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 y in x
0.044 * [taylor]: Taking taylor expansion of y in y
0.044 * [taylor]: Taking taylor expansion of 0 in y
0.044 * [taylor]: Taking taylor expansion of 1 in y
0.044 * [taylor]: Taking taylor expansion of 0 in y
0.045 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.045 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.045 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.045 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.045 * [taylor]: Taking taylor expansion of x in y
0.045 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.045 * [taylor]: Taking taylor expansion of y in y
0.045 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.045 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.045 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.045 * [taylor]: Taking taylor expansion of x in x
0.045 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.045 * [taylor]: Taking taylor expansion of y in x
0.045 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.045 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.045 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.045 * [taylor]: Taking taylor expansion of x in x
0.045 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.045 * [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
0.046 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.046 * [taylor]: Taking taylor expansion of y in y
0.046 * [taylor]: Taking taylor expansion of 0 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
0.046 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.046 * [taylor]: Taking taylor expansion of x in y
0.046 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.046 * [taylor]: Taking taylor expansion of y in y
0.047 * [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 (neg (/ 1 y)) 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 * * * [progress]: simplifying candidates
0.048 * [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)
0.051 * * [simplify]: iteration  0 :  139  enodes  (cost  151 )
0.054 * * [simplify]: iteration  1 :  485  enodes  (cost  141 )
0.061 * * [simplify]: iteration  2 :  1555  enodes  (cost  139 )
0.094 * * [simplify]: iteration  3 :  5002  enodes  (cost  138 )
0.095 * [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)
0.095 * * * [progress]: adding candidates to table
0.132 * * [progress]: iteration 2 / 4
0.132 * * * [progress]: picking best candidate
0.136 * * * * [pick]: Picked  #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>
0.136 * * * [progress]: localizing error
0.141 * * * [progress]: generating rewritten candidates
0.141 * * * [progress]: generating series expansions
0.141 * * * [progress]: simplifying candidates
0.141 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.143 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.143 * [simplify]: Simplified to:
   
0.143 * * * [progress]: adding candidates to table
0.143 * * [progress]: iteration 3 / 4
0.143 * * * [progress]: picking best candidate
0.146 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (* 1/2 (/ y x))))>
0.146 * * * [progress]: localizing error
0.150 * * * [progress]: generating rewritten candidates
0.150 * * * [progress]: generating series expansions
0.150 * * * [progress]: simplifying candidates
0.150 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.153 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.153 * [simplify]: Simplified to:
   
0.153 * * * [progress]: adding candidates to table
0.153 * [progress]: [Phase 3 of 3] Extracting.
0.153 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.153 * * * [regime-changes]: Trying 5 branch expressions: ((* x x) (+ (* x x) y) (sqrt (+ (* x x) y)) y x)
0.153 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.188 * * * * [regimes]: Trying to branch on (+ (* x x) y) from (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.226 * * * * [regimes]: Trying to branch on (sqrt (+ (* x x) y)) from (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.268 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.312 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.353 * * * [regime]: Found split indices: #<option (#s(si 2 44) #s(si 0 204) #s(si 1 255))>
0.353 * [binary-search]: Improving bounds with binary search for x and (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.381 * [regimes]: Found splitpoints: (#s(sp 2 x -1.3400549420880773e+154) #s(sp 0 x 4.941392752545181e+80) #s(sp 1 x +nan.0)) , with alts (#<alt (λ (x y) (sqrt (+ (* x x) y)))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (- (* -1/2 (/ y x)) x))>)
0.381 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (if (<= x -1.3400549420880773e+154) (- (* -1/2 (/ y x)) x) (if (<= x 4.941392752545181e+80) (sqrt (+ (* x x) y)) (+ x (* 1/2 (/ y x)))))
0.382 * * [simplify]: iteration  0 :  22  enodes  (cost  9 )
0.382 * * [simplify]: iteration  1 :  22  enodes  (cost  9 )
0.382 * [simplify]: Simplified to:
   (if (<= x -1.3400549420880773e+154) (- (* -1/2 (/ y x)) x) (if (<= x 4.941392752545181e+80) (sqrt (+ (* x x) y)) (+ x (* 1/2 (/ y x)))))
1.240 * [regime-testing]: End program error score: 0.25352230822031546
1.332 * [regime-testing]: Target error score: 0.4748337425215489