MAYBE * Step 1: DependencyPairs MAYBE + Considered Problem: - Strict TRS: f(X) -> if(X,c(),f(true())) if(false(),X,Y) -> Y if(true(),X,Y) -> X - Signature: {f/1,if/3} / {c/0,false/0,true/0} - Obligation: innermost runtime complexity wrt. defined symbols {f,if} and constructors {c,false,true} + Applied Processor: DependencyPairs {dpKind_ = DT} + Details: We add the following dependency tuples: Strict DPs f#(X) -> c_1(if#(X,c(),f(true())),f#(true())) if#(false(),X,Y) -> c_2() if#(true(),X,Y) -> c_3() Weak DPs and mark the set of starting terms. * Step 2: PredecessorEstimation MAYBE + Considered Problem: - Strict DPs: f#(X) -> c_1(if#(X,c(),f(true())),f#(true())) if#(false(),X,Y) -> c_2() if#(true(),X,Y) -> c_3() - Weak TRS: f(X) -> if(X,c(),f(true())) if(false(),X,Y) -> Y if(true(),X,Y) -> X - Signature: {f/1,if/3,f#/1,if#/3} / {c/0,false/0,true/0,c_1/2,c_2/0,c_3/0} - Obligation: innermost runtime complexity wrt. defined symbols {f#,if#} and constructors {c,false,true} + Applied Processor: PredecessorEstimation {onSelection = all simple predecessor estimation selector} + Details: We estimate the number of application of {2,3} by application of Pre({2,3}) = {1}. Here rules are labelled as follows: 1: f#(X) -> c_1(if#(X,c(),f(true())),f#(true())) 2: if#(false(),X,Y) -> c_2() 3: if#(true(),X,Y) -> c_3() * Step 3: RemoveWeakSuffixes MAYBE + Considered Problem: - Strict DPs: f#(X) -> c_1(if#(X,c(),f(true())),f#(true())) - Weak DPs: if#(false(),X,Y) -> c_2() if#(true(),X,Y) -> c_3() - Weak TRS: f(X) -> if(X,c(),f(true())) if(false(),X,Y) -> Y if(true(),X,Y) -> X - Signature: {f/1,if/3,f#/1,if#/3} / {c/0,false/0,true/0,c_1/2,c_2/0,c_3/0} - Obligation: innermost runtime complexity wrt. defined symbols {f#,if#} and constructors {c,false,true} + Applied Processor: RemoveWeakSuffixes + Details: Consider the dependency graph 1:S:f#(X) -> c_1(if#(X,c(),f(true())),f#(true())) -->_1 if#(true(),X,Y) -> c_3():3 -->_1 if#(false(),X,Y) -> c_2():2 -->_2 f#(X) -> c_1(if#(X,c(),f(true())),f#(true())):1 2:W:if#(false(),X,Y) -> c_2() 3:W:if#(true(),X,Y) -> c_3() The following weak DPs constitute a sub-graph of the DG that is closed under successors. The DPs are removed. 2: if#(false(),X,Y) -> c_2() 3: if#(true(),X,Y) -> c_3() * Step 4: SimplifyRHS MAYBE + Considered Problem: - Strict DPs: f#(X) -> c_1(if#(X,c(),f(true())),f#(true())) - Weak TRS: f(X) -> if(X,c(),f(true())) if(false(),X,Y) -> Y if(true(),X,Y) -> X - Signature: {f/1,if/3,f#/1,if#/3} / {c/0,false/0,true/0,c_1/2,c_2/0,c_3/0} - Obligation: innermost runtime complexity wrt. defined symbols {f#,if#} and constructors {c,false,true} + Applied Processor: SimplifyRHS + Details: Consider the dependency graph 1:S:f#(X) -> c_1(if#(X,c(),f(true())),f#(true())) -->_2 f#(X) -> c_1(if#(X,c(),f(true())),f#(true())):1 Due to missing edges in the depndency graph, the right-hand sides of following rules could be simplified: f#(X) -> c_1(f#(true())) * Step 5: UsableRules MAYBE + Considered Problem: - Strict DPs: f#(X) -> c_1(f#(true())) - Weak TRS: f(X) -> if(X,c(),f(true())) if(false(),X,Y) -> Y if(true(),X,Y) -> X - Signature: {f/1,if/3,f#/1,if#/3} / {c/0,false/0,true/0,c_1/1,c_2/0,c_3/0} - Obligation: innermost runtime complexity wrt. defined symbols {f#,if#} and constructors {c,false,true} + Applied Processor: UsableRules + Details: We replace rewrite rules by usable rules: f#(X) -> c_1(f#(true())) * Step 6: Failure MAYBE + Considered Problem: - Strict DPs: f#(X) -> c_1(f#(true())) - Signature: {f/1,if/3,f#/1,if#/3} / {c/0,false/0,true/0,c_1/1,c_2/0,c_3/0} - Obligation: innermost runtime complexity wrt. defined symbols {f#,if#} and constructors {c,false,true} + Applied Processor: EmptyProcessor + Details: The problem is still open. MAYBE