YES
Time: 0.000880
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:
    {}
    STATUS:
     arrows: 1.000000
     SCCS (0):