MAYBE

Problem:
 f(t(),x,y) -> f(g(x,y),x,s(y))
 g(s(x),0()) -> t()
 g(s(x),s(y)) -> g(x,y)

Proof:
 DP Processor:
  DPs:
   f#(t(),x,y) -> g#(x,y)
   f#(t(),x,y) -> f#(g(x,y),x,s(y))
   g#(s(x),s(y)) -> g#(x,y)
  TRS:
   f(t(),x,y) -> f(g(x,y),x,s(y))
   g(s(x),0()) -> t()
   g(s(x),s(y)) -> g(x,y)
  Usable Rule Processor:
   DPs:
    f#(t(),x,y) -> g#(x,y)
    f#(t(),x,y) -> f#(g(x,y),x,s(y))
    g#(s(x),s(y)) -> g#(x,y)
   TRS:
    g(s(x),0()) -> t()
    g(s(x),s(y)) -> g(x,y)
   Open