YES Problem: f(x,y) -> g1(x,x,y) f(x,y) -> g1(y,x,x) f(x,y) -> g2(x,y,y) f(x,y) -> g2(y,y,x) g1(x,x,y) -> h(x,y) g1(y,x,x) -> h(x,y) g2(x,y,y) -> h(x,y) g2(y,y,x) -> h(x,y) h(x,x) -> x Proof: Bounds Processor: bound: 2 enrichment: top automaton: final states: {5} transitions: f0(5,5) -> 5* g10(5,5,5) -> 5* g20(5,5,5) -> 5* h0(5,5) -> 5* h1(5,5) -> 5* g21(5,5,5) -> 5* g11(5,5,5) -> 5* h2(5,5) -> 5* problem: Qed