26.704 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.014 * * * [progress]: [2/2] Setting up program.
0.016 * [progress]: [Phase 2 of 3] Improving.
0.016 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sqrt (+ (* x x) y))
0.019 * * [simplify]: iteration  0 :  6  enodes  (cost  3 )
0.020 * * [simplify]: iteration  1 :  6  enodes  (cost  3 )
0.020 * [simplify]: Simplified to:
   (sqrt (+ (* x x) y))
0.021 * * [progress]: iteration 1 / 4
0.021 * * * [progress]: picking best candidate
0.022 * * * * [pick]: Picked  #<alt (λ (x y) (sqrt (+ (* x x) y)))>
0.022 * * * [progress]: localizing error
0.026 * * * [progress]: generating rewritten candidates
0.026 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.031 * * * [progress]: generating series expansions
0.031 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.031 * [approximate]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in (x y) around 0
0.031 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in y
0.031 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in y
0.031 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.031 * [taylor]: Taking taylor expansion of x in y
0.031 * [taylor]: Taking taylor expansion of y in y
0.032 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in x
0.032 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.032 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.032 * [taylor]: Taking taylor expansion of x in x
0.032 * [taylor]: Taking taylor expansion of y in x
0.033 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) y)) in x
0.033 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.033 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.033 * [taylor]: Taking taylor expansion of x in x
0.033 * [taylor]: Taking taylor expansion of y in x
0.033 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.033 * [taylor]: Taking taylor expansion of y in y
0.034 * [taylor]: Taking taylor expansion of 0 in y
0.035 * [taylor]: Taking taylor expansion of (* 1/2 (sqrt (/ 1 y))) in y
0.035 * [taylor]: Taking taylor expansion of 1/2 in y
0.035 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.035 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.036 * [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
0.041 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.041 * [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
0.043 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.043 * [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
0.045 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.045 * [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
0.049 * [taylor]: Taking taylor expansion of (/ 1/2 y) in y
0.049 * [taylor]: Taking taylor expansion of 1/2 in y
0.049 * [taylor]: Taking taylor expansion of y in y
0.050 * [taylor]: Taking taylor expansion of 0 in y
0.053 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.053 * [taylor]: Taking taylor expansion of -1/8 in y
0.053 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.053 * [taylor]: Taking taylor expansion of y in y
0.055 * [approximate]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.055 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in y
0.055 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.055 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.055 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.055 * [taylor]: Taking taylor expansion of x in y
0.055 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.055 * [taylor]: Taking taylor expansion of y in y
0.057 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.057 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.057 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.057 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.057 * [taylor]: Taking taylor expansion of x in x
0.057 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.057 * [taylor]: Taking taylor expansion of y in x
0.059 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.059 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.059 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.059 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.059 * [taylor]: Taking taylor expansion of x in x
0.060 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.060 * [taylor]: Taking taylor expansion of y in x
0.062 * [taylor]: Taking taylor expansion of 1 in y
0.062 * [taylor]: Taking taylor expansion of 0 in y
0.063 * [taylor]: Taking taylor expansion of (/ -1/2 y) in y
0.063 * [taylor]: Taking taylor expansion of -1/2 in y
0.063 * [taylor]: Taking taylor expansion of y in y
0.066 * [taylor]: Taking taylor expansion of 0 in y
0.069 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.069 * [taylor]: Taking taylor expansion of -1/8 in y
0.069 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.069 * [taylor]: Taking taylor expansion of y in y
0.070 * * * [progress]: simplifying candidates
0.071 * [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)))
  (- (+ (* +nan.0 (pow x 2)) (- (+ (* +nan.0 (pow y 2)) (- (* +nan.0 y))))))
  (+ x (* 1/2 (/ y x)))
  (- (+ x (* 1/2 (/ y x))))
0.074 * * [simplify]: iteration  0 :  116  enodes  (cost  95 )
0.076 * * [simplify]: iteration  1 :  334  enodes  (cost  90 )
0.081 * * [simplify]: iteration  2 :  997  enodes  (cost  89 )
0.103 * * [simplify]: iteration  3 :  3969  enodes  (cost  87 )
0.207 * * [simplify]: iteration  4 :  5002  enodes  (cost  87 )
0.208 * [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)))
  (* +nan.0 (- (- (pow y 2) y) (pow x 2)))
  (+ x (* 1/2 (/ y x)))
  (- (+ x (* 1/2 (/ y x))))
0.208 * * * [progress]: adding candidates to table
0.248 * * [progress]: iteration 2 / 4
0.248 * * * [progress]: picking best candidate
0.250 * * * * [pick]: Picked  #<alt (λ (x y) (- (+ x (* 1/2 (/ y x)))))>
0.250 * * * [progress]: localizing error
0.255 * * * [progress]: generating rewritten candidates
0.255 * * * [progress]: generating series expansions
0.255 * * * [progress]: simplifying candidates
0.255 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.258 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.258 * [simplify]: Simplified to:
   
0.258 * * * [progress]: adding candidates to table
0.258 * * [progress]: iteration 3 / 4
0.258 * * * [progress]: picking best candidate
0.259 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (* 1/2 (/ y x))))>
0.259 * * * [progress]: localizing error
0.264 * * * [progress]: generating rewritten candidates
0.264 * * * [progress]: generating series expansions
0.264 * * * [progress]: simplifying candidates
0.264 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.268 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.268 * [simplify]: Simplified to:
   
0.268 * * * [progress]: adding candidates to table
0.269 * [progress]: [Phase 3 of 3] Extracting.
0.269 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (- (+ x (* 1/2 (/ y x)))))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.269 * * * [regime-changes]: Trying 5 branch expressions: ((* x x) (+ (* x x) y) (sqrt (+ (* x x) y)) y x)
0.269 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (- (+ x (* 1/2 (/ y x)))))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.284 * * * * [regimes]: Trying to branch on (+ (* x x) y) from (#<alt (λ (x y) (- (+ x (* 1/2 (/ y x)))))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.300 * * * * [regimes]: Trying to branch on (sqrt (+ (* x x) y)) from (#<alt (λ (x y) (- (+ x (* 1/2 (/ y x)))))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.322 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (- (+ x (* 1/2 (/ y x)))))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.351 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (- (+ x (* 1/2 (/ y x)))))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.374 * * * [regime]: Found split indices: #<option (#s(si 0 52) #s(si 2 196) #s(si 1 255))>
0.375 * [binary-search]: Improving bounds with binary search for x and (#<alt (λ (x y) (- (+ x (* 1/2 (/ y x)))))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.415 * [regimes]: Found splitpoints: (#s(sp 0 x -1.324302639487947e+154) #s(sp 2 x 2.7912781014974274e+57) #s(sp 1 x +nan.0)) , with alts (#<alt (λ (x y) (- (+ x (* 1/2 (/ y x)))))> #<alt (λ (x y) (+ x (* 1/2 (/ y x))))> #<alt (λ (x y) (sqrt (+ (* x x) y)))>)
0.416 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (if (<= x -1.324302639487947e+154) (- (+ x (* 1/2 (/ y x)))) (if (<= x 2.7912781014974274e+57) (sqrt (+ (* x x) y)) (+ x (* 1/2 (/ y x)))))
0.416 * * [simplify]: iteration  0 :  22  enodes  (cost  10 )
0.417 * * [simplify]: iteration  1 :  29  enodes  (cost  10 )
0.417 * * [simplify]: iteration  2 :  31  enodes  (cost  10 )
0.417 * * [simplify]: iteration  3 :  31  enodes  (cost  10 )
0.417 * [simplify]: Simplified to:
   (if (<= x -1.324302639487947e+154) (- (+ x (* 1/2 (/ y x)))) (if (<= x 2.7912781014974274e+57) (sqrt (+ (* x x) y)) (+ x (* 1/2 (/ y x)))))
0.901 * [regime-testing]: Baseline error score: 21.622327790973873
0.902 * [regime-testing]: Oracle error score: 0.0023752969121140144
0.904 * [regime-testing]: End program error score: 0.5522627964580001
0.934 * [regime-testing]: Target error score: 0.5522627964580001