YES Problem: g(c(x,s(y))) -> g(c(s(x),y)) f(c(s(x),y)) -> f(c(x,s(y))) f(f(x)) -> f(d(f(x))) f(x) -> x Proof: DP Processor: DPs: g#(c(x,s(y))) -> g#(c(s(x),y)) f#(c(s(x),y)) -> f#(c(x,s(y))) f#(f(x)) -> f#(d(f(x))) TRS: g(c(x,s(y))) -> g(c(s(x),y)) f(c(s(x),y)) -> f(c(x,s(y))) f(f(x)) -> f(d(f(x))) f(x) -> x EDG Processor: DPs: g#(c(x,s(y))) -> g#(c(s(x),y)) f#(c(s(x),y)) -> f#(c(x,s(y))) f#(f(x)) -> f#(d(f(x))) TRS: g(c(x,s(y))) -> g(c(s(x),y)) f(c(s(x),y)) -> f(c(x,s(y))) f(f(x)) -> f(d(f(x))) f(x) -> x graph: f#(c(s(x),y)) -> f#(c(x,s(y))) -> f#(c(s(x),y)) -> f#(c(x,s(y))) g#(c(x,s(y))) -> g#(c(s(x),y)) -> g#(c(x,s(y))) -> g#(c(s(x),y)) SCC Processor: #sccs: 2 #rules: 2 #arcs: 2/9 DPs: g#(c(x,s(y))) -> g#(c(s(x),y)) TRS: g(c(x,s(y))) -> g(c(s(x),y)) f(c(s(x),y)) -> f(c(x,s(y))) f(f(x)) -> f(d(f(x))) f(x) -> x Bounds Processor: bound: 1 enrichment: match-dp automaton: final states: {7} transitions: g{#,0}(9) -> 7* c0(3,1) -> 2* c0(3,3) -> 2* c0(3,5) -> 2* c0(4,2) -> 2* c0(4,4) -> 2* c0(5,1) -> 2* c0(5,3) -> 2* c0(5,5) -> 2* c0(1,2) -> 2* c0(1,4) -> 2* c0(2,1) -> 2* c0(2,3) -> 2* c0(2,5) -> 2* c0(3,2) -> 2* c0(3,4) -> 2* c0(8,6) -> 9* c0(4,1) -> 2* c0(4,3) -> 2* c0(4,5) -> 2* c0(5,2) -> 2* c0(5,4) -> 2* c0(1,1) -> 2* c0(1,3) -> 2* c0(1,5) -> 2* c0(2,2) -> 2* c0(2,4) -> 2* s0(5) -> 1* s0(2) -> 1* s0(4) -> 1* s0(6) -> 8* s0(1) -> 1* s0(3) -> 1* g0(5) -> 3* g0(2) -> 3* g0(4) -> 3* g0(1) -> 3* g0(3) -> 3* f0(5) -> 4* f0(2) -> 4* f0(4) -> 4* f0(1) -> 4* f0(3) -> 4* d0(5) -> 5* d0(2) -> 5* d0(4) -> 5* d0(1) -> 5* d0(3) -> 5* g{#,1}(13) -> 7* c1(12,1) -> 13* c1(12,3) -> 13* c1(12,5) -> 13* c1(12,2) -> 13* c1(12,4) -> 13* s1(12) -> 12* s1(8) -> 12* 1 -> 4,6 2 -> 4,6 3 -> 4,6 4 -> 6* 5 -> 4,6 problem: DPs: TRS: g(c(x,s(y))) -> g(c(s(x),y)) f(c(s(x),y)) -> f(c(x,s(y))) f(f(x)) -> f(d(f(x))) f(x) -> x Qed DPs: f#(c(s(x),y)) -> f#(c(x,s(y))) TRS: g(c(x,s(y))) -> g(c(s(x),y)) f(c(s(x),y)) -> f(c(x,s(y))) f(f(x)) -> f(d(f(x))) f(x) -> x Matrix Interpretation Processor: dimension: 1 interpretation: [f#](x0) = x0, [d](x0) = x0, [f](x0) = x0, [g](x0) = 0, [c](x0, x1) = x0, [s](x0) = x0 + 1 orientation: f#(c(s(x),y)) = x + 1 >= x = f#(c(x,s(y))) g(c(x,s(y))) = 0 >= 0 = g(c(s(x),y)) f(c(s(x),y)) = x + 1 >= x = f(c(x,s(y))) f(f(x)) = x >= x = f(d(f(x))) f(x) = x >= x = x problem: DPs: TRS: g(c(x,s(y))) -> g(c(s(x),y)) f(c(s(x),y)) -> f(c(x,s(y))) f(f(x)) -> f(d(f(x))) f(x) -> x Qed