0 QTRS
cond1(true, x, y) → cond2(gr(x, y), x, y) cond2(true, x, y) → cond1(gr0(x), y, y) cond2(false, x, y) → cond1(gr0(x), p(x), y) gr(0, x) → false gr(s(x), 0) → true gr(s(x), s(y)) → gr(x, y) gr0(0) → false gr0(s(x)) → true p(0) → 0 p(s(x)) → x