MAYBE
Time: 0.001073
TRS:
 {  +(0(), y) -> y,
    +(s x, y) -> s +(x, y),
    -(x, 0()) -> x,
    -(0(), y) -> 0(),
  -(s x, s y) -> -(x, y)}
 DP:
  DP:
   {  +#(s x, y) -> +#(x, y),
    -#(s x, s y) -> -#(x, y)}
  TRS:
  {  +(0(), y) -> y,
     +(s x, y) -> s +(x, y),
     -(x, 0()) -> x,
     -(0(), y) -> 0(),
   -(s x, s y) -> -(x, y)}
  UR:
   {}
   EDG:
    {(-#(s x, s y) -> -#(x, y), -#(s x, s y) -> -#(x, y))
     (+#(s x, y) -> +#(x, y), +#(s x, y) -> +#(x, y))}
    STATUS:
     arrows: 0.500000
     SCCS (2):
      Scc:
       {-#(s x, s y) -> -#(x, y)}
      Scc:
       {+#(s x, y) -> +#(x, y)}
      
      SCC (1):
       Strict:
        {-#(s x, s y) -> -#(x, y)}
       Weak:
       {  +(0(), y) -> y,
          +(s x, y) -> s +(x, y),
          -(x, 0()) -> x,
          -(0(), y) -> 0(),
        -(s x, s y) -> -(x, y)}
       Open
      SCC (1):
       Strict:
        {+#(s x, y) -> +#(x, y)}
       Weak:
       {  +(0(), y) -> y,
          +(s x, y) -> s +(x, y),
          -(x, 0()) -> x,
          -(0(), y) -> 0(),
        -(s x, s y) -> -(x, y)}
       Open