MAYBE
Time: 0.001631
TRS:
 {    cond(true(), x) -> cond(and(even x, gr(x, 0())), p x),
      and(x, false()) -> false(),
  and(true(), true()) -> true(),
      and(false(), x) -> false(),
             even 0() -> true(),
           even s 0() -> false(),
           even s s x -> even x,
           gr(0(), x) -> false(),
         gr(s x, 0()) -> true(),
       gr(s x, s y()) -> gr(x, y()),
                p 0() -> 0(),
                p s x -> x}
 DP:
  DP:
   {cond#(true(), x) -> cond#(and(even x, gr(x, 0())), p x),
    cond#(true(), x) -> and#(even x, gr(x, 0())),
    cond#(true(), x) -> even# x,
    cond#(true(), x) -> gr#(x, 0()),
    cond#(true(), x) -> p# x,
         even# s s x -> even# x,
     gr#(s x, s y()) -> gr#(x, y())}
  TRS:
  {    cond(true(), x) -> cond(and(even x, gr(x, 0())), p x),
       and(x, false()) -> false(),
   and(true(), true()) -> true(),
       and(false(), x) -> false(),
              even 0() -> true(),
            even s 0() -> false(),
            even s s x -> even x,
            gr(0(), x) -> false(),
          gr(s x, 0()) -> true(),
        gr(s x, s y()) -> gr(x, y()),
                 p 0() -> 0(),
                 p s x -> x}
  UR:
   {    and(x, false()) -> false(),
    and(true(), true()) -> true(),
        and(false(), x) -> false(),
               even 0() -> true(),
             even s 0() -> false(),
             even s s x -> even x,
             gr(0(), x) -> false(),
           gr(s x, 0()) -> true(),
                  p 0() -> 0(),
                  p s x -> x,
                a(y, z) -> y,
                a(y, z) -> z}
   EDG:
    {(cond#(true(), x) -> even# x, even# s s x -> even# x)
     (even# s s x -> even# x, even# s s x -> even# x)
     (cond#(true(), x) -> cond#(and(even x, gr(x, 0())), p x), cond#(true(), x) -> cond#(and(even x, gr(x, 0())), p x))
     (cond#(true(), x) -> cond#(and(even x, gr(x, 0())), p x), cond#(true(), x) -> and#(even x, gr(x, 0())))
     (cond#(true(), x) -> cond#(and(even x, gr(x, 0())), p x), cond#(true(), x) -> even# x)
     (cond#(true(), x) -> cond#(and(even x, gr(x, 0())), p x), cond#(true(), x) -> gr#(x, 0()))
     (cond#(true(), x) -> cond#(and(even x, gr(x, 0())), p x), cond#(true(), x) -> p# x)}
    STATUS:
     arrows: 0.857143
     SCCS (2):
      Scc:
       {cond#(true(), x) -> cond#(and(even x, gr(x, 0())), p x)}
      Scc:
       {even# s s x -> even# x}
      
      SCC (1):
       Strict:
        {cond#(true(), x) -> cond#(and(even x, gr(x, 0())), p x)}
       Weak:
       {    cond(true(), x) -> cond(and(even x, gr(x, 0())), p x),
            and(x, false()) -> false(),
        and(true(), true()) -> true(),
            and(false(), x) -> false(),
                   even 0() -> true(),
                 even s 0() -> false(),
                 even s s x -> even x,
                 gr(0(), x) -> false(),
               gr(s x, 0()) -> true(),
             gr(s x, s y()) -> gr(x, y()),
                      p 0() -> 0(),
                      p s x -> x}
       Open
      
      
      SCC (1):
       Strict:
        {even# s s x -> even# x}
       Weak:
       {    cond(true(), x) -> cond(and(even x, gr(x, 0())), p x),
            and(x, false()) -> false(),
        and(true(), true()) -> true(),
            and(false(), x) -> false(),
                   even 0() -> true(),
                 even s 0() -> false(),
                 even s s x -> even x,
                 gr(0(), x) -> false(),
               gr(s x, 0()) -> true(),
             gr(s x, s y()) -> gr(x, y()),
                      p 0() -> 0(),
                      p s x -> x}
       Open