TRS:
 {        div(0(), y) -> 0(),
            div(x, y) -> quot(x, y, y),
   quot(0(), s(y), z) -> 0(),
  quot(s(x), s(y), z) -> quot(x, y, z),
   quot(x, 0(), s(z)) -> s(div(x, s(z)))}
 Fail