22.114 * [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-regraph> :
   (sqrt (+ (* x x) (* y y)))
0.017 * * [simplify]: iteration  0 :  6  enodes  (cost  8 )
0.018 * * [simplify]: iteration  1 :  7  enodes  (cost  8 )
0.019 * * [simplify]: iteration  done :  7  enodes  (cost  8 )
0.019 * [simplify]: Simplified to:
   (sqrt (+ (* x x) (* y y)))
0.019 * * [progress]: iteration 1 / 4
0.019 * * * [progress]: picking best candidate
0.021 * * * * [pick]: Picked  #<alt (λ (x y) (sqrt (+ (* x x) (* y y))))>
0.021 * * * [progress]: localizing error
0.027 * * * [progress]: generating rewritten candidates
0.027 * * * * [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) (pow y 2))) in (x y) around 0
0.031 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) (pow y 2))) in y
0.031 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) 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 (pow y 2) in y
0.031 * [taylor]: Taking taylor expansion of y in y
0.032 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) (pow y 2))) in x
0.032 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) 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 (pow y 2) in x
0.032 * [taylor]: Taking taylor expansion of y in x
0.033 * [taylor]: Taking taylor expansion of (sqrt (+ (pow x 2) (pow y 2))) in x
0.033 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) 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 (pow y 2) in x
0.033 * [taylor]: Taking taylor expansion of y in x
0.033 * [taylor]: Taking taylor expansion of y in y
0.033 * [taylor]: Taking taylor expansion of 0 in y
0.035 * [taylor]: Taking taylor expansion of (/ 1/2 y) in y
0.035 * [taylor]: Taking taylor expansion of 1/2 in y
0.035 * [taylor]: Taking taylor expansion of y in y
0.037 * [taylor]: Taking taylor expansion of 0 in y
0.037 * [approximate]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in (x y) around 0
0.038 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.038 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.038 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) 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 (/ 1 (pow y 2)) in y
0.038 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.038 * [taylor]: Taking taylor expansion of y in y
0.040 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.040 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) 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 (pow y 2)) in x
0.041 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.041 * [taylor]: Taking taylor expansion of y in x
0.043 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.043 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.043 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.043 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.043 * [taylor]: Taking taylor expansion of x in x
0.043 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.043 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.044 * [taylor]: Taking taylor expansion of y in x
0.046 * [taylor]: Taking taylor expansion of 1 in y
0.046 * [taylor]: Taking taylor expansion of 0 in y
0.048 * [taylor]: Taking taylor expansion of (/ 1/2 (pow y 2)) in y
0.048 * [taylor]: Taking taylor expansion of 1/2 in y
0.048 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.048 * [taylor]: Taking taylor expansion of y in y
0.051 * [taylor]: Taking taylor expansion of 0 in y
0.052 * [approximate]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in (x y) around 0
0.052 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.052 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.052 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.052 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.052 * [taylor]: Taking taylor expansion of x in y
0.052 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.052 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.052 * [taylor]: Taking taylor expansion of y in y
0.055 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.055 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.055 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.055 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.055 * [taylor]: Taking taylor expansion of x in x
0.055 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.055 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.055 * [taylor]: Taking taylor expansion of y in x
0.057 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.057 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) 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
0.058 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.058 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.058 * [taylor]: Taking taylor expansion of y in x
0.060 * [taylor]: Taking taylor expansion of 1 in y
0.060 * [taylor]: Taking taylor expansion of 0 in y
0.062 * [taylor]: Taking taylor expansion of (/ 1/2 (pow y 2)) in y
0.062 * [taylor]: Taking taylor expansion of 1/2 in y
0.062 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.062 * [taylor]: Taking taylor expansion of y in y
0.066 * [taylor]: Taking taylor expansion of 0 in y
0.067 * * * [progress]: simplifying candidates
0.067 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (log (sqrt (+ (* x x) (* y y))))
  (exp (sqrt (+ (* x x) (* y y))))
  (* (cbrt (sqrt (+ (* x x) (* y y)))) (cbrt (sqrt (+ (* x x) (* y y)))))
  (cbrt (sqrt (+ (* x x) (* y y))))
  (* (* (sqrt (+ (* x x) (* y y))) (sqrt (+ (* x x) (* y y)))) (sqrt (+ (* x x) (* y y))))
  (sqrt (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (sqrt (cbrt (+ (* x x) (* y y))))
  (sqrt (sqrt (+ (* x x) (* y y))))
  (sqrt (sqrt (+ (* x x) (* y y))))
  (sqrt 1)
  (sqrt (+ (* x x) (* y y)))
  (sqrt (+ (pow (* x x) 3) (pow (* y y) 3)))
  (sqrt (+ (* (* x x) (* x x)) (- (* (* y y) (* y y)) (* (* x x) (* y y)))))
  (sqrt (- (* (* x x) (* x x)) (* (* y y) (* y y))))
  (sqrt (- (* x x) (* y y)))
  (/ 1 2)
  (sqrt (sqrt (+ (* x x) (* y y))))
  (sqrt (sqrt (+ (* x x) (* y y))))
  y
  x
  (* -1 x)
0.069 * * [simplify]: iteration  0 :  38  enodes  (cost  213 )
0.075 * * [simplify]: iteration  1 :  91  enodes  (cost  186 )
0.094 * * [simplify]: iteration  2 :  207  enodes  (cost  170 )
0.133 * * [simplify]: iteration  3 :  463  enodes  (cost  164 )
0.249 * * [simplify]: iteration  4 :  1051  enodes  (cost  164 )
0.674 * * [simplify]: iteration  5 :  2857  enodes  (cost  164 )
1.661 * * [simplify]: iteration  done :  5000  enodes  (cost  164 )
1.661 * [simplify]: Simplified to:
   (log (sqrt (+ (* x x) (* y y))))
  (exp (sqrt (+ (* x x) (* y y))))
  (* (cbrt (sqrt (+ (* x x) (* y y)))) (cbrt (sqrt (+ (* x x) (* y y)))))
  (cbrt (sqrt (+ (* x x) (* y y))))
  (pow (sqrt (+ (* x x) (* y y))) 3)
  (fabs (cbrt (+ (* x x) (* y y))))
  (sqrt (cbrt (+ (* x x) (* y y))))
  (sqrt (sqrt (+ (* x x) (* y y))))
  (sqrt (sqrt (+ (* x x) (* y y))))
  1
  (sqrt (+ (* x x) (* y y)))
  (sqrt (+ (pow y 6) (pow x 6)))
  (sqrt (+ (pow y 4) (- (pow x 4) (* (* x x) (* y y)))))
  (sqrt (- (pow x 4) (pow y 4)))
  (sqrt (- (* x x) (* y y)))
  1/2
  (sqrt (sqrt (+ (* x x) (* y y))))
  (sqrt (sqrt (+ (* x x) (* y y))))
  y
  x
  (- x)
1.662 * * * [progress]: adding candidates to table
1.706 * * [progress]: iteration 2 / 4
1.706 * * * [progress]: picking best candidate
1.709 * * * * [pick]: Picked  #<alt (λ (x y) (- x))>
1.709 * * * [progress]: localizing error
1.710 * * * [progress]: generating rewritten candidates
1.710 * * * [progress]: generating series expansions
1.710 * * * [progress]: simplifying candidates
1.710 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
1.711 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
1.711 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
1.711 * [simplify]: Simplified to:
   
1.711 * * * [progress]: adding candidates to table
1.711 * * [progress]: iteration 3 / 4
1.711 * * * [progress]: picking best candidate
1.713 * * * * [pick]: Picked  #<alt (λ (x y) x)>
1.713 * * * [progress]: localizing error
1.714 * * * [progress]: generating rewritten candidates
1.714 * * * [progress]: generating series expansions
1.714 * * * [progress]: simplifying candidates
1.714 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
1.715 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
1.715 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
1.715 * [simplify]: Simplified to:
   
1.715 * * * [progress]: adding candidates to table
1.715 * * [progress]: iteration 4 / 4
1.715 * * * [progress]: picking best candidate
1.716 * * * * [pick]: Picked  #<alt (λ (x y) y)>
1.716 * * * [progress]: localizing error
1.717 * * * [progress]: generating rewritten candidates
1.717 * * * [progress]: generating series expansions
1.717 * * * [progress]: simplifying candidates
1.717 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
1.718 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
1.718 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
1.718 * [simplify]: Simplified to:
   
1.718 * * * [progress]: adding candidates to table
1.718 * [progress]: [Phase 3 of 3] Extracting.
1.718 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) y)> #<alt (λ (x y) (- x))> #<alt (λ (x y) (sqrt (+ (* x x) (* y y))))> #<alt (λ (x y) x)>)
1.718 * * * [regime-changes]: Trying 6 branch expressions: ((* y y) (* x x) (+ (* x x) (* y y)) (sqrt (+ (* x x) (* y y))) y x)
1.718 * * * * [regimes]: Trying to branch on (* y y) from (#<alt (λ (x y) y)> #<alt (λ (x y) (- x))> #<alt (λ (x y) (sqrt (+ (* x x) (* y y))))> #<alt (λ (x y) x)>)
1.740 * * * * [regimes]: Trying to branch on (* y y) from (#<alt (λ (x y) (- x))> #<alt (λ (x y) (sqrt (+ (* x x) (* y y))))> #<alt (λ (x y) x)>)
1.758 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) y)> #<alt (λ (x y) (- x))> #<alt (λ (x y) (sqrt (+ (* x x) (* y y))))> #<alt (λ (x y) x)>)
1.776 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) y)> #<alt (λ (x y) (sqrt (+ (* x x) (* y y))))>)
1.786 * * * * [regimes]: Trying to branch on (+ (* x x) (* y y)) from (#<alt (λ (x y) y)> #<alt (λ (x y) (- x))> #<alt (λ (x y) (sqrt (+ (* x x) (* y y))))> #<alt (λ (x y) x)>)
1.808 * * * * [regimes]: Trying to branch on (sqrt (+ (* x x) (* y y))) from (#<alt (λ (x y) y)> #<alt (λ (x y) (- x))> #<alt (λ (x y) (sqrt (+ (* x x) (* y y))))> #<alt (λ (x y) x)>)
1.832 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) y)> #<alt (λ (x y) (- x))> #<alt (λ (x y) (sqrt (+ (* x x) (* y y))))> #<alt (λ (x y) x)>)
1.889 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) y)> #<alt (λ (x y) (- x))> #<alt (λ (x y) (sqrt (+ (* x x) (* y y))))> #<alt (λ (x y) x)>)
1.923 * * * [regime]: Found split indices: #<option (#s(si 1 36) #s(si 2 109) #s(si 0 129) #s(si 2 219) #s(si 3 255))>
1.923 * [binary-search]: Improving bounds with binary search for x and (#<alt (λ (x y) y)> #<alt (λ (x y) (- x))> #<alt (λ (x y) (sqrt (+ (* x x) (* y y))))> #<alt (λ (x y) x)>)
2.005 * [regimes]: Found splitpoints: (#s(sp 1 x -8.15024475259888e+153) #s(sp 2 x -9.528172448826491e-265) #s(sp 0 x 1.047455535241276e-281) #s(sp 2 x 2.70835173311075e+105) #s(sp 3 x +nan.0)) , with alts (#<alt (λ (x y) y)> #<alt (λ (x y) (- x))> #<alt (λ (x y) (sqrt (+ (* x x) (* y y))))> #<alt (λ (x y) x)>)
2.005 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (if (<= x -8.15024475259888e+153) (- x) (if (<= x -9.528172448826491e-265) (sqrt (+ (* x x) (* y y))) (if (<= x 1.047455535241276e-281) y (if (<= x 2.70835173311075e+105) (sqrt (+ (* x x) (* y y))) x))))
2.005 * * [simplify]: iteration  0 :  19  enodes  (cost  36 )
2.006 * * [simplify]: iteration  1 :  20  enodes  (cost  36 )
2.006 * * [simplify]: iteration  done :  20  enodes  (cost  36 )
2.007 * [simplify]: Simplified to:
   (if (<= x -8.15024475259888e+153) (- x) (if (<= x -9.528172448826491e-265) (sqrt (+ (* x x) (* y y))) (if (<= x 1.047455535241276e-281) y (if (<= x 2.70835173311075e+105) (sqrt (+ (* x x) (* y y))) x))))
2.433 * [regime-testing]: Baseline error score: 32.30873690391314
2.433 * [regime-testing]: Oracle error score: 8.16337656290569
2.435 * [regime-testing]: End program error score: 17.960616968203677
2.466 * [regime-testing]: Target error score: 17.89809344994303