WORST_CASE(?,O(1)) * Step 1: Sum WORST_CASE(?,O(1)) + Considered Problem: - Strict TRS: a(c(d(x))) -> c(x) u(b(d(d(x)))) -> b(x) v(a(a(x))) -> u(v(x)) v(a(c(x))) -> u(b(d(x))) v(c(x)) -> b(x) w(a(a(x))) -> u(w(x)) w(a(c(x))) -> u(b(d(x))) w(c(x)) -> b(x) - Signature: {a/1,u/1,v/1,w/1} / {b/1,c/1,d/1} - Obligation: innermost runtime complexity wrt. defined symbols {a,u,v,w} and constructors {b,c,d} + Applied Processor: Sum {left = someStrategy, right = someStrategy} + Details: () * Step 2: DependencyPairs WORST_CASE(?,O(1)) + Considered Problem: - Strict TRS: a(c(d(x))) -> c(x) u(b(d(d(x)))) -> b(x) v(a(a(x))) -> u(v(x)) v(a(c(x))) -> u(b(d(x))) v(c(x)) -> b(x) w(a(a(x))) -> u(w(x)) w(a(c(x))) -> u(b(d(x))) w(c(x)) -> b(x) - Signature: {a/1,u/1,v/1,w/1} / {b/1,c/1,d/1} - Obligation: innermost runtime complexity wrt. defined symbols {a,u,v,w} and constructors {b,c,d} + Applied Processor: DependencyPairs {dpKind_ = DT} + Details: We add the following dependency tuples: Strict DPs a#(c(d(x))) -> c_1() u#(b(d(d(x)))) -> c_2() v#(a(a(x))) -> c_3(u#(v(x)),v#(x)) v#(a(c(x))) -> c_4(u#(b(d(x)))) v#(c(x)) -> c_5() w#(a(a(x))) -> c_6(u#(w(x)),w#(x)) w#(a(c(x))) -> c_7(u#(b(d(x)))) w#(c(x)) -> c_8() Weak DPs and mark the set of starting terms. * Step 3: PredecessorEstimation WORST_CASE(?,O(1)) + Considered Problem: - Strict DPs: a#(c(d(x))) -> c_1() u#(b(d(d(x)))) -> c_2() v#(a(a(x))) -> c_3(u#(v(x)),v#(x)) v#(a(c(x))) -> c_4(u#(b(d(x)))) v#(c(x)) -> c_5() w#(a(a(x))) -> c_6(u#(w(x)),w#(x)) w#(a(c(x))) -> c_7(u#(b(d(x)))) w#(c(x)) -> c_8() - Weak TRS: a(c(d(x))) -> c(x) u(b(d(d(x)))) -> b(x) v(a(a(x))) -> u(v(x)) v(a(c(x))) -> u(b(d(x))) v(c(x)) -> b(x) w(a(a(x))) -> u(w(x)) w(a(c(x))) -> u(b(d(x))) w(c(x)) -> b(x) - Signature: {a/1,u/1,v/1,w/1,a#/1,u#/1,v#/1,w#/1} / {b/1,c/1,d/1,c_1/0,c_2/0,c_3/2,c_4/1,c_5/0,c_6/2,c_7/1,c_8/0} - Obligation: innermost runtime complexity wrt. defined symbols {a#,u#,v#,w#} and constructors {b,c,d} + Applied Processor: PredecessorEstimation {onSelection = all simple predecessor estimation selector} + Details: We estimate the number of application of {1,2,5,8} by application of Pre({1,2,5,8}) = {3,4,6,7}. Here rules are labelled as follows: 1: a#(c(d(x))) -> c_1() 2: u#(b(d(d(x)))) -> c_2() 3: v#(a(a(x))) -> c_3(u#(v(x)),v#(x)) 4: v#(a(c(x))) -> c_4(u#(b(d(x)))) 5: v#(c(x)) -> c_5() 6: w#(a(a(x))) -> c_6(u#(w(x)),w#(x)) 7: w#(a(c(x))) -> c_7(u#(b(d(x)))) 8: w#(c(x)) -> c_8() * Step 4: PredecessorEstimation WORST_CASE(?,O(1)) + Considered Problem: - Strict DPs: v#(a(a(x))) -> c_3(u#(v(x)),v#(x)) v#(a(c(x))) -> c_4(u#(b(d(x)))) w#(a(a(x))) -> c_6(u#(w(x)),w#(x)) w#(a(c(x))) -> c_7(u#(b(d(x)))) - Weak DPs: a#(c(d(x))) -> c_1() u#(b(d(d(x)))) -> c_2() v#(c(x)) -> c_5() w#(c(x)) -> c_8() - Weak TRS: a(c(d(x))) -> c(x) u(b(d(d(x)))) -> b(x) v(a(a(x))) -> u(v(x)) v(a(c(x))) -> u(b(d(x))) v(c(x)) -> b(x) w(a(a(x))) -> u(w(x)) w(a(c(x))) -> u(b(d(x))) w(c(x)) -> b(x) - Signature: {a/1,u/1,v/1,w/1,a#/1,u#/1,v#/1,w#/1} / {b/1,c/1,d/1,c_1/0,c_2/0,c_3/2,c_4/1,c_5/0,c_6/2,c_7/1,c_8/0} - Obligation: innermost runtime complexity wrt. defined symbols {a#,u#,v#,w#} and constructors {b,c,d} + Applied Processor: PredecessorEstimation {onSelection = all simple predecessor estimation selector} + Details: We estimate the number of application of {2,4} by application of Pre({2,4}) = {1,3}. Here rules are labelled as follows: 1: v#(a(a(x))) -> c_3(u#(v(x)),v#(x)) 2: v#(a(c(x))) -> c_4(u#(b(d(x)))) 3: w#(a(a(x))) -> c_6(u#(w(x)),w#(x)) 4: w#(a(c(x))) -> c_7(u#(b(d(x)))) 5: a#(c(d(x))) -> c_1() 6: u#(b(d(d(x)))) -> c_2() 7: v#(c(x)) -> c_5() 8: w#(c(x)) -> c_8() * Step 5: RemoveWeakSuffixes WORST_CASE(?,O(1)) + Considered Problem: - Strict DPs: v#(a(a(x))) -> c_3(u#(v(x)),v#(x)) w#(a(a(x))) -> c_6(u#(w(x)),w#(x)) - Weak DPs: a#(c(d(x))) -> c_1() u#(b(d(d(x)))) -> c_2() v#(a(c(x))) -> c_4(u#(b(d(x)))) v#(c(x)) -> c_5() w#(a(c(x))) -> c_7(u#(b(d(x)))) w#(c(x)) -> c_8() - Weak TRS: a(c(d(x))) -> c(x) u(b(d(d(x)))) -> b(x) v(a(a(x))) -> u(v(x)) v(a(c(x))) -> u(b(d(x))) v(c(x)) -> b(x) w(a(a(x))) -> u(w(x)) w(a(c(x))) -> u(b(d(x))) w(c(x)) -> b(x) - Signature: {a/1,u/1,v/1,w/1,a#/1,u#/1,v#/1,w#/1} / {b/1,c/1,d/1,c_1/0,c_2/0,c_3/2,c_4/1,c_5/0,c_6/2,c_7/1,c_8/0} - Obligation: innermost runtime complexity wrt. defined symbols {a#,u#,v#,w#} and constructors {b,c,d} + Applied Processor: RemoveWeakSuffixes + Details: Consider the dependency graph 1:S:v#(a(a(x))) -> c_3(u#(v(x)),v#(x)) -->_2 v#(a(c(x))) -> c_4(u#(b(d(x)))):5 -->_2 v#(c(x)) -> c_5():6 -->_1 u#(b(d(d(x)))) -> c_2():4 -->_2 v#(a(a(x))) -> c_3(u#(v(x)),v#(x)):1 2:S:w#(a(a(x))) -> c_6(u#(w(x)),w#(x)) -->_2 w#(a(c(x))) -> c_7(u#(b(d(x)))):7 -->_2 w#(c(x)) -> c_8():8 -->_1 u#(b(d(d(x)))) -> c_2():4 -->_2 w#(a(a(x))) -> c_6(u#(w(x)),w#(x)):2 3:W:a#(c(d(x))) -> c_1() 4:W:u#(b(d(d(x)))) -> c_2() 5:W:v#(a(c(x))) -> c_4(u#(b(d(x)))) -->_1 u#(b(d(d(x)))) -> c_2():4 6:W:v#(c(x)) -> c_5() 7:W:w#(a(c(x))) -> c_7(u#(b(d(x)))) -->_1 u#(b(d(d(x)))) -> c_2():4 8:W:w#(c(x)) -> c_8() The following weak DPs constitute a sub-graph of the DG that is closed under successors. The DPs are removed. 3: a#(c(d(x))) -> c_1() 8: w#(c(x)) -> c_8() 7: w#(a(c(x))) -> c_7(u#(b(d(x)))) 6: v#(c(x)) -> c_5() 5: v#(a(c(x))) -> c_4(u#(b(d(x)))) 4: u#(b(d(d(x)))) -> c_2() * Step 6: SimplifyRHS WORST_CASE(?,O(1)) + Considered Problem: - Strict DPs: v#(a(a(x))) -> c_3(u#(v(x)),v#(x)) w#(a(a(x))) -> c_6(u#(w(x)),w#(x)) - Weak TRS: a(c(d(x))) -> c(x) u(b(d(d(x)))) -> b(x) v(a(a(x))) -> u(v(x)) v(a(c(x))) -> u(b(d(x))) v(c(x)) -> b(x) w(a(a(x))) -> u(w(x)) w(a(c(x))) -> u(b(d(x))) w(c(x)) -> b(x) - Signature: {a/1,u/1,v/1,w/1,a#/1,u#/1,v#/1,w#/1} / {b/1,c/1,d/1,c_1/0,c_2/0,c_3/2,c_4/1,c_5/0,c_6/2,c_7/1,c_8/0} - Obligation: innermost runtime complexity wrt. defined symbols {a#,u#,v#,w#} and constructors {b,c,d} + Applied Processor: SimplifyRHS + Details: Consider the dependency graph 1:S:v#(a(a(x))) -> c_3(u#(v(x)),v#(x)) -->_2 v#(a(a(x))) -> c_3(u#(v(x)),v#(x)):1 2:S:w#(a(a(x))) -> c_6(u#(w(x)),w#(x)) -->_2 w#(a(a(x))) -> c_6(u#(w(x)),w#(x)):2 Due to missing edges in the depndency graph, the right-hand sides of following rules could be simplified: v#(a(a(x))) -> c_3(v#(x)) w#(a(a(x))) -> c_6(w#(x)) * Step 7: UsableRules WORST_CASE(?,O(1)) + Considered Problem: - Strict DPs: v#(a(a(x))) -> c_3(v#(x)) w#(a(a(x))) -> c_6(w#(x)) - Weak TRS: a(c(d(x))) -> c(x) u(b(d(d(x)))) -> b(x) v(a(a(x))) -> u(v(x)) v(a(c(x))) -> u(b(d(x))) v(c(x)) -> b(x) w(a(a(x))) -> u(w(x)) w(a(c(x))) -> u(b(d(x))) w(c(x)) -> b(x) - Signature: {a/1,u/1,v/1,w/1,a#/1,u#/1,v#/1,w#/1} / {b/1,c/1,d/1,c_1/0,c_2/0,c_3/1,c_4/1,c_5/0,c_6/1,c_7/1,c_8/0} - Obligation: innermost runtime complexity wrt. defined symbols {a#,u#,v#,w#} and constructors {b,c,d} + Applied Processor: UsableRules + Details: No rule is usable, rules are removed from the input problem. * Step 8: EmptyProcessor WORST_CASE(?,O(1)) + Considered Problem: - Signature: {a/1,u/1,v/1,w/1,a#/1,u#/1,v#/1,w#/1} / {b/1,c/1,d/1,c_1/0,c_2/0,c_3/1,c_4/1,c_5/0,c_6/1,c_7/1,c_8/0} - Obligation: innermost runtime complexity wrt. defined symbols {a#,u#,v#,w#} and constructors {b,c,d} + Applied Processor: EmptyProcessor + Details: The problem is already closed. The intended complexity is O(1). WORST_CASE(?,O(1))