24.672 * [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))
0.017 * * [simplify]: iteration  0 :  5  enodes  (cost  6 )
0.018 * * [simplify]: iteration  1 :  7  enodes  (cost  5 )
0.018 * * [simplify]: iteration  done :  7  enodes  (cost  5 )
0.018 * [simplify]: Simplified to:
   (sqrt (fma x x y))
0.021 * * [progress]: iteration 1 / 4
0.021 * * * [progress]: picking best candidate
0.023 * * * * [pick]: Picked  #<alt (λ (x y) (sqrt (fma x x y)))>
0.023 * * * [progress]: localizing error
0.027 * * * [progress]: generating rewritten candidates
0.027 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.028 * * * [progress]: generating series expansions
0.028 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.028 * [approximate]: Taking taylor expansion of (sqrt (fma x x y)) in (x y) around 0
0.028 * [taylor]: Taking taylor expansion of (sqrt (fma x x y)) in y
0.028 * [taylor]: Taking taylor expansion of (fma x x y) in y
0.028 * [taylor]: Rewrote expression to (+ (* x x) y)
0.028 * [taylor]: Taking taylor expansion of (* x x) in y
0.028 * [taylor]: Taking taylor expansion of x in y
0.028 * [taylor]: Taking taylor expansion of x in y
0.028 * [taylor]: Taking taylor expansion of y in y
0.029 * [taylor]: Taking taylor expansion of (sqrt (fma x x y)) in x
0.029 * [taylor]: Taking taylor expansion of (fma x x y) in x
0.029 * [taylor]: Rewrote expression to (+ (* x x) y)
0.029 * [taylor]: Taking taylor expansion of (* x x) in x
0.029 * [taylor]: Taking taylor expansion of x in x
0.029 * [taylor]: Taking taylor expansion of x in x
0.029 * [taylor]: Taking taylor expansion of y in x
0.030 * [taylor]: Taking taylor expansion of (sqrt (fma x x y)) in x
0.030 * [taylor]: Taking taylor expansion of (fma x x y) in x
0.030 * [taylor]: Rewrote expression to (+ (* x x) y)
0.030 * [taylor]: Taking taylor expansion of (* x x) in x
0.030 * [taylor]: Taking taylor expansion of x in x
0.030 * [taylor]: Taking taylor expansion of x in x
0.030 * [taylor]: Taking taylor expansion of y in x
0.032 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.032 * [taylor]: Taking taylor expansion of y in y
0.033 * [taylor]: Taking taylor expansion of 0 in y
0.034 * [taylor]: Taking taylor expansion of (* 1/2 (sqrt (/ 1 y))) in y
0.034 * [taylor]: Taking taylor expansion of 1/2 in y
0.034 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.034 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.034 * [taylor]: Taking taylor expansion of y in y
0.039 * [approximate]: Taking taylor expansion of (sqrt (fma (/ 1 x) (/ 1 x) (/ 1 y))) in (x y) around 0
0.039 * [taylor]: Taking taylor expansion of (sqrt (fma (/ 1 x) (/ 1 x) (/ 1 y))) in y
0.039 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (/ 1 y)) in y
0.039 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (/ 1 y))
0.039 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in y
0.039 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.039 * [taylor]: Taking taylor expansion of x in y
0.039 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.039 * [taylor]: Taking taylor expansion of x in y
0.039 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.039 * [taylor]: Taking taylor expansion of y in y
0.041 * [taylor]: Taking taylor expansion of (sqrt (fma (/ 1 x) (/ 1 x) (/ 1 y))) in x
0.041 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (/ 1 y)) in x
0.041 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (/ 1 y))
0.041 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in x
0.041 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.041 * [taylor]: Taking taylor expansion of x in x
0.041 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.041 * [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
0.044 * [taylor]: Taking taylor expansion of (sqrt (fma (/ 1 x) (/ 1 x) (/ 1 y))) in x
0.044 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (/ 1 y)) in x
0.044 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (/ 1 y))
0.044 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in x
0.044 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.044 * [taylor]: Taking taylor expansion of x in x
0.044 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.044 * [taylor]: Taking taylor expansion of x in x
0.044 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.044 * [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
0.052 * [taylor]: Taking taylor expansion of 0 in y
0.055 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.055 * [taylor]: Taking taylor expansion of -1/8 in y
0.055 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.055 * [taylor]: Taking taylor expansion of y in y
0.056 * [approximate]: Taking taylor expansion of (sqrt (fma (/ -1 x) (/ -1 x) (/ -1 y))) in (x y) around 0
0.056 * [taylor]: Taking taylor expansion of (sqrt (fma (/ -1 x) (/ -1 x) (/ -1 y))) in y
0.056 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (/ -1 y)) in y
0.056 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (/ -1 y))
0.056 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in y
0.056 * [taylor]: Taking taylor expansion of (/ -1 x) in y
0.056 * [taylor]: Taking taylor expansion of -1 in y
0.056 * [taylor]: Taking taylor expansion of x in y
0.057 * [taylor]: Taking taylor expansion of (/ -1 x) in y
0.057 * [taylor]: Taking taylor expansion of -1 in y
0.057 * [taylor]: Taking taylor expansion of x in y
0.057 * [taylor]: Taking taylor expansion of (/ -1 y) in y
0.057 * [taylor]: Taking taylor expansion of -1 in y
0.057 * [taylor]: Taking taylor expansion of y in y
0.058 * [taylor]: Taking taylor expansion of (sqrt (fma (/ -1 x) (/ -1 x) (/ -1 y))) in x
0.058 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (/ -1 y)) in x
0.058 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (/ -1 y))
0.058 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in x
0.058 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.058 * [taylor]: Taking taylor expansion of -1 in x
0.058 * [taylor]: Taking taylor expansion of x in x
0.059 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.059 * [taylor]: Taking taylor expansion of -1 in x
0.059 * [taylor]: Taking taylor expansion of x in x
0.059 * [taylor]: Taking taylor expansion of (/ -1 y) in x
0.059 * [taylor]: Taking taylor expansion of -1 in x
0.059 * [taylor]: Taking taylor expansion of y in x
0.061 * [taylor]: Taking taylor expansion of (sqrt (fma (/ -1 x) (/ -1 x) (/ -1 y))) in x
0.062 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (/ -1 y)) in x
0.062 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (/ -1 y))
0.062 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in x
0.062 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.062 * [taylor]: Taking taylor expansion of -1 in x
0.062 * [taylor]: Taking taylor expansion of x in x
0.062 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.062 * [taylor]: Taking taylor expansion of -1 in x
0.062 * [taylor]: Taking taylor expansion of x in x
0.062 * [taylor]: Taking taylor expansion of (/ -1 y) in x
0.062 * [taylor]: Taking taylor expansion of -1 in x
0.062 * [taylor]: Taking taylor expansion of y in x
0.065 * [taylor]: Taking taylor expansion of 1 in y
0.065 * [taylor]: Taking taylor expansion of 0 in y
0.067 * [taylor]: Taking taylor expansion of (/ -1/2 y) in y
0.067 * [taylor]: Taking taylor expansion of -1/2 in y
0.067 * [taylor]: Taking taylor expansion of y in y
0.070 * [taylor]: Taking taylor expansion of 0 in y
0.073 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.073 * [taylor]: Taking taylor expansion of -1/8 in y
0.073 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.073 * [taylor]: Taking taylor expansion of y in y
0.075 * * * [progress]: simplifying candidates
0.078 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (sqrt (fma x x y)))
  (log1p (sqrt (fma x x y)))
  (log (sqrt (fma x x y)))
  (exp (sqrt (fma x x y)))
  (* (cbrt (sqrt (fma x x y))) (cbrt (sqrt (fma x x y))))
  (cbrt (sqrt (fma x x y)))
  (* (* (sqrt (fma x x y)) (sqrt (fma x x y))) (sqrt (fma x x y)))
  (sqrt (* (cbrt (fma x x y)) (cbrt (fma x x y))))
  (sqrt (cbrt (fma x x y)))
  (sqrt (sqrt (fma x x y)))
  (sqrt (sqrt (fma x x y)))
  (sqrt 1)
  (sqrt (fma x x y))
  (/ 1 2)
  (sqrt (sqrt (fma x x y)))
  (sqrt (sqrt (fma 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))))
0.079 * * [simplify]: iteration  0 :  37  enodes  (cost  145 )
0.086 * * [simplify]: iteration  1 :  75  enodes  (cost  127 )
0.098 * * [simplify]: iteration  2 :  175  enodes  (cost  120 )
0.145 * * [simplify]: iteration  3 :  494  enodes  (cost  118 )
0.343 * * [simplify]: iteration  4 :  1453  enodes  (cost  117 )
1.182 * * [simplify]: iteration  done :  5001  enodes  (cost  117 )
1.183 * [simplify]: Simplified to:
   (expm1 (sqrt (fma x x y)))
  (log1p (sqrt (fma x x y)))
  (log (sqrt (fma x x y)))
  (exp (sqrt (fma x x y)))
  (* (cbrt (sqrt (fma x x y))) (cbrt (sqrt (fma x x y))))
  (cbrt (sqrt (fma x x y)))
  (pow (sqrt (fma x x y)) 3)
  (fabs (cbrt (fma x x y)))
  (sqrt (cbrt (fma x x y)))
  (sqrt (sqrt (fma x x y)))
  (sqrt (sqrt (fma x x y)))
  1
  (sqrt (fma x x y))
  1/2
  (sqrt (sqrt (fma x x y)))
  (sqrt (sqrt (fma x x y)))
  (* (- +nan.0) (fma x x (- y (pow y 2))))
  (fma (/ y x) 1/2 x)
  (- (fma (/ y x) 1/2 x))
1.183 * * * [progress]: adding candidates to table
1.227 * * [progress]: iteration 2 / 4
1.227 * * * [progress]: picking best candidate
1.230 * * * * [pick]: Picked  #<alt (λ (x y) (- (fma (/ y x) 1/2 x)))>
1.230 * * * [progress]: localizing error
1.234 * * * [progress]: generating rewritten candidates
1.235 * * * [progress]: generating series expansions
1.235 * * * [progress]: simplifying candidates
1.235 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
1.236 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
1.236 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
1.236 * [simplify]: Simplified to:
   
1.236 * * * [progress]: adding candidates to table
1.236 * * [progress]: iteration 3 / 4
1.236 * * * [progress]: picking best candidate
1.237 * * * * [pick]: Picked  #<alt (λ (x y) (fma (/ y x) 1/2 x))>
1.237 * * * [progress]: localizing error
1.241 * * * [progress]: generating rewritten candidates
1.242 * * * [progress]: generating series expansions
1.242 * * * [progress]: simplifying candidates
1.242 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
1.243 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
1.243 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
1.243 * [simplify]: Simplified to:
   
1.243 * * * [progress]: adding candidates to table
1.243 * [progress]: [Phase 3 of 3] Extracting.
1.243 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (sqrt (fma x x y)))> #<alt (λ (x y) (- (fma (/ y x) 1/2 x)))> #<alt (λ (x y) (fma (/ y x) 1/2 x))>)
1.243 * * * [regime-changes]: Trying 2 branch expressions: (y x)
1.243 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (sqrt (fma x x y)))> #<alt (λ (x y) (- (fma (/ y x) 1/2 x)))> #<alt (λ (x y) (fma (/ y x) 1/2 x))>)
1.266 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (sqrt (fma x x y)))> #<alt (λ (x y) (- (fma (/ y x) 1/2 x)))> #<alt (λ (x y) (fma (/ y x) 1/2 x))>)
1.290 * * * [regime]: Found split indices: #<option (#s(si 1 48) #s(si 0 191) #s(si 2 255))>
1.291 * [binary-search]: Improving bounds with binary search for x and (#<alt (λ (x y) (sqrt (fma x x y)))> #<alt (λ (x y) (- (fma (/ y x) 1/2 x)))> #<alt (λ (x y) (fma (/ y x) 1/2 x))>)
1.324 * [regimes]: Found splitpoints: (#s(sp 1 x -1.2815112109798557e+154) #s(sp 0 x 3.3825854527583296e+81) #s(sp 2 x +nan.0)) , with alts (#<alt (λ (x y) (sqrt (fma x x y)))> #<alt (λ (x y) (- (fma (/ y x) 1/2 x)))> #<alt (λ (x y) (fma (/ y x) 1/2 x))>)
1.325 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (if (<= x -1.2815112109798557e+154) (- (fma (/ y x) 1/2 x)) (if (<= x 3.3825854527583296e+81) (sqrt (fma x x y)) (fma (/ y x) 1/2 x)))
1.325 * * [simplify]: iteration  0 :  14  enodes  (cost  26 )
1.325 * * [simplify]: iteration  done :  14  enodes  (cost  26 )
1.325 * [simplify]: Simplified to:
   (if (<= x -1.2815112109798557e+154) (- (fma (/ y x) 1/2 x)) (if (<= x 3.3825854527583296e+81) (sqrt (fma x x y)) (fma (/ y x) 1/2 x)))
1.845 * [regime-testing]: Baseline error score: 21.445805725715715
1.846 * [regime-testing]: Oracle error score: 0.0066505714936008035
1.847 * [regime-testing]: End program error score: 0.2679007821480593
1.877 * [regime-testing]: Target error score: 0.4681879226130674