MAYBE Problem: f(f(a(),f(a(),a())),x) -> f(x,f(f(a(),a()),a())) Proof: DP Processor: DPs: f#(f(a(),f(a(),a())),x) -> f#(f(a(),a()),a()) f#(f(a(),f(a(),a())),x) -> f#(x,f(f(a(),a()),a())) TRS: f(f(a(),f(a(),a())),x) -> f(x,f(f(a(),a()),a())) Usable Rule Processor: DPs: f#(f(a(),f(a(),a())),x) -> f#(f(a(),a()),a()) f#(f(a(),f(a(),a())),x) -> f#(x,f(f(a(),a()),a())) TRS: Restore Modifier: DPs: f#(f(a(),f(a(),a())),x) -> f#(f(a(),a()),a()) f#(f(a(),f(a(),a())),x) -> f#(x,f(f(a(),a()),a())) TRS: f(f(a(),f(a(),a())),x) -> f(x,f(f(a(),a()),a())) SCC Processor: #sccs: 1 #rules: 2 #arcs: 4/4 DPs: f#(f(a(),f(a(),a())),x) -> f#(f(a(),a()),a()) f#(f(a(),f(a(),a())),x) -> f#(x,f(f(a(),a()),a())) TRS: f(f(a(),f(a(),a())),x) -> f(x,f(f(a(),a()),a())) Matrix Interpretation Processor: dimension: 1 interpretation: [f#](x0, x1) = x0 + x1, [f](x0, x1) = x0 + x1 + 1, [a] = 0 orientation: f#(f(a(),f(a(),a())),x) = x + 2 >= 1 = f#(f(a(),a()),a()) f#(f(a(),f(a(),a())),x) = x + 2 >= x + 2 = f#(x,f(f(a(),a()),a())) f(f(a(),f(a(),a())),x) = x + 3 >= x + 3 = f(x,f(f(a(),a()),a())) problem: DPs: f#(f(a(),f(a(),a())),x) -> f#(x,f(f(a(),a()),a())) TRS: f(f(a(),f(a(),a())),x) -> f(x,f(f(a(),a()),a())) Open