*** 1 Progress [(O(1),O(1))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: f(f(x)) -> f(c(f(x))) f(f(x)) -> f(d(f(x))) g(c(x)) -> x g(c(0())) -> g(d(1())) g(c(1())) -> g(d(0())) g(d(x)) -> x Weak DP Rules: Weak TRS Rules: Signature: {f/1,g/1} / {0/0,1/0,c/1,d/1} Obligation: Innermost basic terms: {f,g}/{0,1,c,d} Applied Processor: DependencyPairs {dpKind_ = DT} Proof: We add the following dependency tuples: Strict DPs f#(f(x)) -> c_1(f#(c(f(x))),f#(x)) f#(f(x)) -> c_2(f#(d(f(x))),f#(x)) g#(c(x)) -> c_3() g#(c(0())) -> c_4(g#(d(1()))) g#(c(1())) -> c_5(g#(d(0()))) g#(d(x)) -> c_6() Weak DPs and mark the set of starting terms. *** 1.1 Progress [(O(1),O(1))] *** Considered Problem: Strict DP Rules: f#(f(x)) -> c_1(f#(c(f(x))),f#(x)) f#(f(x)) -> c_2(f#(d(f(x))),f#(x)) g#(c(x)) -> c_3() g#(c(0())) -> c_4(g#(d(1()))) g#(c(1())) -> c_5(g#(d(0()))) g#(d(x)) -> c_6() Strict TRS Rules: Weak DP Rules: Weak TRS Rules: f(f(x)) -> f(c(f(x))) f(f(x)) -> f(d(f(x))) g(c(x)) -> x g(c(0())) -> g(d(1())) g(c(1())) -> g(d(0())) g(d(x)) -> x Signature: {f/1,g/1,f#/1,g#/1} / {0/0,1/0,c/1,d/1,c_1/2,c_2/2,c_3/0,c_4/1,c_5/1,c_6/0} Obligation: Innermost basic terms: {f#,g#}/{0,1,c,d} Applied Processor: UsableRules Proof: We replace rewrite rules by usable rules: g#(c(x)) -> c_3() g#(c(0())) -> c_4(g#(d(1()))) g#(c(1())) -> c_5(g#(d(0()))) g#(d(x)) -> c_6() *** 1.1.1 Progress [(O(1),O(1))] *** Considered Problem: Strict DP Rules: g#(c(x)) -> c_3() g#(c(0())) -> c_4(g#(d(1()))) g#(c(1())) -> c_5(g#(d(0()))) g#(d(x)) -> c_6() Strict TRS Rules: Weak DP Rules: Weak TRS Rules: Signature: {f/1,g/1,f#/1,g#/1} / {0/0,1/0,c/1,d/1,c_1/2,c_2/2,c_3/0,c_4/1,c_5/1,c_6/0} Obligation: Innermost basic terms: {f#,g#}/{0,1,c,d} Applied Processor: Trivial Proof: Consider the dependency graph 1:S:g#(c(x)) -> c_3() 2:S:g#(c(0())) -> c_4(g#(d(1()))) -->_1 g#(d(x)) -> c_6():4 3:S:g#(c(1())) -> c_5(g#(d(0()))) -->_1 g#(d(x)) -> c_6():4 4:S:g#(d(x)) -> c_6() The dependency graph contains no loops, we remove all dependency pairs. *** 1.1.1.1 Progress [(O(1),O(1))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: Weak DP Rules: Weak TRS Rules: Signature: {f/1,g/1,f#/1,g#/1} / {0/0,1/0,c/1,d/1,c_1/2,c_2/2,c_3/0,c_4/1,c_5/1,c_6/0} Obligation: Innermost basic terms: {f#,g#}/{0,1,c,d} Applied Processor: EmptyProcessor Proof: The problem is already closed. The intended complexity is O(1).