YES Problem: b(a(b(a(c(b(a(x1))))))) -> a(b(a(c(b(b(a(b(a(c(x1)))))))))) Proof: DP Processor: DPs: b#(a(b(a(c(b(a(x1))))))) -> b#(a(c(x1))) b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) b#(a(b(a(c(b(a(x1))))))) -> b#(b(a(b(a(c(x1)))))) b#(a(b(a(c(b(a(x1))))))) -> b#(a(c(b(b(a(b(a(c(x1))))))))) TRS: b(a(b(a(c(b(a(x1))))))) -> a(b(a(c(b(b(a(b(a(c(x1)))))))))) EDG Processor: DPs: b#(a(b(a(c(b(a(x1))))))) -> b#(a(c(x1))) b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) b#(a(b(a(c(b(a(x1))))))) -> b#(b(a(b(a(c(x1)))))) b#(a(b(a(c(b(a(x1))))))) -> b#(a(c(b(b(a(b(a(c(x1))))))))) TRS: b(a(b(a(c(b(a(x1))))))) -> a(b(a(c(b(b(a(b(a(c(x1)))))))))) graph: b#(a(b(a(c(b(a(x1))))))) -> b#(b(a(b(a(c(x1)))))) -> b#(a(b(a(c(b(a(x1))))))) -> b#(a(c(x1))) b#(a(b(a(c(b(a(x1))))))) -> b#(b(a(b(a(c(x1)))))) -> b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) b#(a(b(a(c(b(a(x1))))))) -> b#(b(a(b(a(c(x1)))))) -> b#(a(b(a(c(b(a(x1))))))) -> b#(b(a(b(a(c(x1)))))) b#(a(b(a(c(b(a(x1))))))) -> b#(b(a(b(a(c(x1)))))) -> b#(a(b(a(c(b(a(x1))))))) -> b#(a(c(b(b(a(b(a(c(x1))))))))) b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) -> b#(a(b(a(c(b(a(x1))))))) -> b#(a(c(x1))) b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) -> b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) -> b#(a(b(a(c(b(a(x1))))))) -> b#(b(a(b(a(c(x1)))))) b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) -> b#(a(b(a(c(b(a(x1))))))) -> b#(a(c(b(b(a(b(a(c(x1))))))))) SCC Processor: #sccs: 1 #rules: 2 #arcs: 8/16 DPs: b#(a(b(a(c(b(a(x1))))))) -> b#(b(a(b(a(c(x1)))))) b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) TRS: b(a(b(a(c(b(a(x1))))))) -> a(b(a(c(b(b(a(b(a(c(x1)))))))))) Matrix Interpretation Processor: dim=4 interpretation: [b#](x0) = [0 1 0 0]x0, [1 0 0 0] [0 0 1 1] [c](x0) = [0 0 0 0]x0 [0 0 0 1] , [1 0 0 0] [0] [0 0 0 1] [0] [b](x0) = [1 0 0 0]x0 + [1] [0 1 0 0] [0], [1 0 0 0] [0 0 1 1] [a](x0) = [0 0 0 0]x0 [0 1 0 0] orientation: b#(a(b(a(c(b(a(x1))))))) = [1 0 1 1]x1 + [1] >= [0 0 1 1]x1 = b#(b(a(b(a(c(x1)))))) b#(a(b(a(c(b(a(x1))))))) = [1 0 1 1]x1 + [1] >= [1 0 0 1]x1 + [1] = b#(a(b(a(c(x1))))) [1 0 0 0] [0] [1 0 0 0] [0] [1 0 1 1] [1] [1 0 1 1] [1] b(a(b(a(c(b(a(x1))))))) = [1 0 0 0]x1 + [1] >= [0 0 0 0]x1 + [0] = a(b(a(c(b(b(a(b(a(c(x1)))))))))) [1 0 1 1] [1] [1 0 1 1] [1] problem: DPs: b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) TRS: b(a(b(a(c(b(a(x1))))))) -> a(b(a(c(b(b(a(b(a(c(x1)))))))))) EDG Processor: DPs: b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) TRS: b(a(b(a(c(b(a(x1))))))) -> a(b(a(c(b(b(a(b(a(c(x1)))))))))) graph: b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) -> b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) CDG Processor: DPs: b#(a(b(a(c(b(a(x1))))))) -> b#(a(b(a(c(x1))))) TRS: b(a(b(a(c(b(a(x1))))))) -> a(b(a(c(b(b(a(b(a(c(x1)))))))))) graph: Qed