MAYBE
Time: 0.000579
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:
    {(sum# s x -> sum# x, sum# s x -> sqr# s x)
     (sum# s x -> sum# x, sum# s x -> sum# x)}
    STATUS:
     arrows: 0.500000
     SCCS (1):
      Scc:
       {sum# s x -> sum# x}
      
      SCC (1):
       Strict:
        {sum# s x -> sum# x}
       Weak:
       {sum 0() -> 0(),
        sum s x -> +(sqr s x, sum x),
        sum s x -> +(*(s x, s x), sum x),
          sqr x -> *(x, x)}
       Open