MAYBE * Step 1: DependencyPairs MAYBE + Considered Problem: - Strict TRS: c() -> b() f(X) -> f(c()) - Signature: {c/0,f/1} / {b/0} - Obligation: innermost runtime complexity wrt. defined symbols {c,f} and constructors {b} + Applied Processor: DependencyPairs {dpKind_ = DT} + Details: We add the following dependency tuples: Strict DPs c#() -> c_1() f#(X) -> c_2(f#(c()),c#()) Weak DPs and mark the set of starting terms. * Step 2: UsableRules MAYBE + Considered Problem: - Strict DPs: c#() -> c_1() f#(X) -> c_2(f#(c()),c#()) - Weak TRS: c() -> b() f(X) -> f(c()) - Signature: {c/0,f/1,c#/0,f#/1} / {b/0,c_1/0,c_2/2} - Obligation: innermost runtime complexity wrt. defined symbols {c#,f#} and constructors {b} + Applied Processor: UsableRules + Details: We replace rewrite rules by usable rules: c() -> b() c#() -> c_1() f#(X) -> c_2(f#(c()),c#()) * Step 3: PredecessorEstimation MAYBE + Considered Problem: - Strict DPs: c#() -> c_1() f#(X) -> c_2(f#(c()),c#()) - Weak TRS: c() -> b() - Signature: {c/0,f/1,c#/0,f#/1} / {b/0,c_1/0,c_2/2} - Obligation: innermost runtime complexity wrt. defined symbols {c#,f#} and constructors {b} + Applied Processor: PredecessorEstimation {onSelection = all simple predecessor estimation selector} + Details: We estimate the number of application of {1} by application of Pre({1}) = {2}. Here rules are labelled as follows: 1: c#() -> c_1() 2: f#(X) -> c_2(f#(c()),c#()) * Step 4: RemoveWeakSuffixes MAYBE + Considered Problem: - Strict DPs: f#(X) -> c_2(f#(c()),c#()) - Weak DPs: c#() -> c_1() - Weak TRS: c() -> b() - Signature: {c/0,f/1,c#/0,f#/1} / {b/0,c_1/0,c_2/2} - Obligation: innermost runtime complexity wrt. defined symbols {c#,f#} and constructors {b} + Applied Processor: RemoveWeakSuffixes + Details: Consider the dependency graph 1:S:f#(X) -> c_2(f#(c()),c#()) -->_2 c#() -> c_1():2 -->_1 f#(X) -> c_2(f#(c()),c#()):1 2:W:c#() -> c_1() The following weak DPs constitute a sub-graph of the DG that is closed under successors. The DPs are removed. 2: c#() -> c_1() * Step 5: SimplifyRHS MAYBE + Considered Problem: - Strict DPs: f#(X) -> c_2(f#(c()),c#()) - Weak TRS: c() -> b() - Signature: {c/0,f/1,c#/0,f#/1} / {b/0,c_1/0,c_2/2} - Obligation: innermost runtime complexity wrt. defined symbols {c#,f#} and constructors {b} + Applied Processor: SimplifyRHS + Details: Consider the dependency graph 1:S:f#(X) -> c_2(f#(c()),c#()) -->_1 f#(X) -> c_2(f#(c()),c#()):1 Due to missing edges in the depndency graph, the right-hand sides of following rules could be simplified: f#(X) -> c_2(f#(c())) * Step 6: Failure MAYBE + Considered Problem: - Strict DPs: f#(X) -> c_2(f#(c())) - Weak TRS: c() -> b() - Signature: {c/0,f/1,c#/0,f#/1} / {b/0,c_1/0,c_2/1} - Obligation: innermost runtime complexity wrt. defined symbols {c#,f#} and constructors {b} + Applied Processor: EmptyProcessor + Details: The problem is still open. MAYBE