The system is accessible function passing by a sort ordering that equates all sorts. We start by computing the following initial DP problem: P1. (1) plus#(Y, s(U)) => plus#(Y, U) (2) f#(0, s(0), V) => plus#(V, V) (3) f#(0, s(0), V) => f#(V, plus(V, V), V) (4) map#(H1, cons(W1, P1)) => map#(H1, P1) (5) filter#(Z2, cons(U2, V2)) => filter2#(Z2(U2), Z2, U2, V2) (6) filter2#(true, I2, P2, X3) => filter#(I2, X3) (7) filter2#(false, Z3, U3, V3) => filter#(Z3, V3) ***** We apply the Graph Processor on P1. Considering the 4 SCCs, this DP problem is split into the following new problems. P2. (1) plus#(Y, s(U)) => plus#(Y, U) P3. (1) f#(0, s(0), V) => f#(V, plus(V, V), V) P4. (1) map#(H1, cons(W1, P1)) => map#(H1, P1) P5. (1) filter#(Z2, cons(U2, V2)) => filter2#(Z2(U2), Z2, U2, V2) (2) filter2#(true, I2, P2, X3) => filter#(I2, X3) (3) filter2#(false, Z3, U3, V3) => filter#(Z3, V3) ***** We apply the Subterm Criterion Processor on P2. We use the following projection function: nu(plus#) = 2 We thus have: (1) s(U) |>| U All DPs are strictly oriented, and may be removed. Hence, this DP problem is finite. ***** No progress could be made on DP problem P3.