YES
Time: 0.000823
TRS:
 {sum 0() -> 0(),
  sum s x -> +(sqr s x, sum x),
  sum s x -> +(*(s x, s x), sum x),
    sqr x -> *(x, x)}
 DP:
  DP:
   {sum# s x -> sum# x,
    sum# s x -> sqr# s x}
  TRS:
  {sum 0() -> 0(),
   sum s x -> +(sqr s x, sum x),
   sum s x -> +(*(s x, s x), sum x),
     sqr x -> *(x, x)}
  UR:
   {}
   EDG:
    {}
    STATUS:
     arrows: 1.000000
     SCCS (0):