Input TRS:
    1: filter(cons(X),0(),M) -> cons(0())
    2: filter(cons(X),s(N),M) -> cons(X)
    3: sieve(cons(0())) -> cons(0())
    4: sieve(cons(s(N))) -> cons(s(N))
    5: nats(N) -> cons(N)
    6: zprimes() -> sieve(nats(s(s(0()))))
Number of Rules: 6
Direct QWPOS(Sum) ... orients all.
	I(nats) = x1 + 2	sigma(nats) = [1]
	I(0) = 0
	I(s) = x1	sigma(s) = [1]
	I(zprimes) = 3
	I(sieve) = x1	sigma(sieve) = [1]
	I(cons) = x1 + 1	sigma(cons) = [1]
	I(filter) = x1 + x2 + x3 + 1	sigma(filter) = [1,2,3]
    PREC: zprimes > nats = sieve = filter > 0 = s = cons
Number of Rules: 0