MAYBE Problem: a(b(a(x1))) -> b(a(x1)) b(b(b(x1))) -> b(a(b(x1))) a(a(x1)) -> b(b(b(x1))) Proof: DP Processor: DPs: b#(b(b(x1))) -> a#(b(x1)) b#(b(b(x1))) -> b#(a(b(x1))) a#(a(x1)) -> b#(x1) a#(a(x1)) -> b#(b(x1)) a#(a(x1)) -> b#(b(b(x1))) TRS: a(b(a(x1))) -> b(a(x1)) b(b(b(x1))) -> b(a(b(x1))) a(a(x1)) -> b(b(b(x1))) TDG Processor: DPs: b#(b(b(x1))) -> a#(b(x1)) b#(b(b(x1))) -> b#(a(b(x1))) a#(a(x1)) -> b#(x1) a#(a(x1)) -> b#(b(x1)) a#(a(x1)) -> b#(b(b(x1))) TRS: a(b(a(x1))) -> b(a(x1)) b(b(b(x1))) -> b(a(b(x1))) a(a(x1)) -> b(b(b(x1))) graph: b#(b(b(x1))) -> b#(a(b(x1))) -> b#(b(b(x1))) -> b#(a(b(x1))) b#(b(b(x1))) -> b#(a(b(x1))) -> b#(b(b(x1))) -> a#(b(x1)) b#(b(b(x1))) -> a#(b(x1)) -> a#(a(x1)) -> b#(b(b(x1))) b#(b(b(x1))) -> a#(b(x1)) -> a#(a(x1)) -> b#(b(x1)) b#(b(b(x1))) -> a#(b(x1)) -> a#(a(x1)) -> b#(x1) a#(a(x1)) -> b#(b(b(x1))) -> b#(b(b(x1))) -> b#(a(b(x1))) a#(a(x1)) -> b#(b(b(x1))) -> b#(b(b(x1))) -> a#(b(x1)) a#(a(x1)) -> b#(b(x1)) -> b#(b(b(x1))) -> b#(a(b(x1))) a#(a(x1)) -> b#(b(x1)) -> b#(b(b(x1))) -> a#(b(x1)) a#(a(x1)) -> b#(x1) -> b#(b(b(x1))) -> b#(a(b(x1))) a#(a(x1)) -> b#(x1) -> b#(b(b(x1))) -> a#(b(x1)) Restore Modifier: DPs: b#(b(b(x1))) -> a#(b(x1)) b#(b(b(x1))) -> b#(a(b(x1))) a#(a(x1)) -> b#(x1) a#(a(x1)) -> b#(b(x1)) a#(a(x1)) -> b#(b(b(x1))) TRS: a(b(a(x1))) -> b(a(x1)) b(b(b(x1))) -> b(a(b(x1))) a(a(x1)) -> b(b(b(x1))) SCC Processor: #sccs: 1 #rules: 5 #arcs: 11/25 DPs: b#(b(b(x1))) -> b#(a(b(x1))) b#(b(b(x1))) -> a#(b(x1)) a#(a(x1)) -> b#(x1) a#(a(x1)) -> b#(b(x1)) a#(a(x1)) -> b#(b(b(x1))) TRS: a(b(a(x1))) -> b(a(x1)) b(b(b(x1))) -> b(a(b(x1))) a(a(x1)) -> b(b(b(x1))) Matrix Interpretation Processor: dimension: 1 interpretation: [b#](x0) = 0, [a#](x0) = x0, [b](x0) = 0, [a](x0) = x0 + 1 orientation: b#(b(b(x1))) = 0 >= 0 = b#(a(b(x1))) b#(b(b(x1))) = 0 >= 0 = a#(b(x1)) a#(a(x1)) = x1 + 1 >= 0 = b#(x1) a#(a(x1)) = x1 + 1 >= 0 = b#(b(x1)) a#(a(x1)) = x1 + 1 >= 0 = b#(b(b(x1))) a(b(a(x1))) = 1 >= 0 = b(a(x1)) b(b(b(x1))) = 0 >= 0 = b(a(b(x1))) a(a(x1)) = x1 + 2 >= 0 = b(b(b(x1))) problem: DPs: b#(b(b(x1))) -> b#(a(b(x1))) b#(b(b(x1))) -> a#(b(x1)) TRS: a(b(a(x1))) -> b(a(x1)) b(b(b(x1))) -> b(a(b(x1))) a(a(x1)) -> b(b(b(x1))) Matrix Interpretation Processor: dimension: 1 interpretation: [b#](x0) = x0, [a#](x0) = 0, [b](x0) = 1, [a](x0) = 1 orientation: b#(b(b(x1))) = 1 >= 1 = b#(a(b(x1))) b#(b(b(x1))) = 1 >= 0 = a#(b(x1)) a(b(a(x1))) = 1 >= 1 = b(a(x1)) b(b(b(x1))) = 1 >= 1 = b(a(b(x1))) a(a(x1)) = 1 >= 1 = b(b(b(x1))) problem: DPs: b#(b(b(x1))) -> b#(a(b(x1))) TRS: a(b(a(x1))) -> b(a(x1)) b(b(b(x1))) -> b(a(b(x1))) a(a(x1)) -> b(b(b(x1))) Open