WORST_CASE(?,O(n^1)) * Step 1: WeightGap WORST_CASE(?,O(n^1)) + Considered Problem: - Strict TRS: goal(xs) -> ordered(xs) notEmpty(Cons(x,xs)) -> True() notEmpty(Nil()) -> False() ordered(Cons(x,Nil())) -> True() ordered(Cons(x',Cons(x,xs))) -> ordered[Ite](<(x',x),Cons(x',Cons(x,xs))) ordered(Nil()) -> True() - Weak TRS: <(x,0()) -> False() <(0(),S(y)) -> True() <(S(x),S(y)) -> <(x,y) ordered[Ite](False(),xs) -> False() ordered[Ite](True(),Cons(x,xs)) -> ordered(xs) - Signature: { [0] = True() ordered(Cons(x,Nil())) = [1] > [0] = True() ordered(Nil()) = [1] > [0] = True() Following rules are (at-least) weakly oriented: <(x,0()) = [11] >= [1] = False() <(0(),S(y)) = [11] >= [0] = True() <(S(x),S(y)) = [11] >= [11] = <(x,y) goal(xs) = [1] >= [1] = ordered(xs) notEmpty(Nil()) = [1] >= [1] = False() ordered(Cons(x',Cons(x,xs))) = [1] >= [24] = ordered[Ite](<(x',x),Cons(x',Cons(x,xs))) ordered[Ite](False(),xs) = [14] >= [1] = False() ordered[Ite](True(),Cons(x,xs)) = [13] >= [1] = ordered(xs) Further, it can be verified that all rules not oriented are covered by the weightgap condition. * Step 2: WeightGap WORST_CASE(?,O(n^1)) + Considered Problem: - Strict TRS: goal(xs) -> ordered(xs) notEmpty(Nil()) -> False() ordered(Cons(x',Cons(x,xs))) -> ordered[Ite](<(x',x),Cons(x',Cons(x,xs))) - Weak TRS: <(x,0()) -> False() <(0(),S(y)) -> True() <(S(x),S(y)) -> <(x,y) notEmpty(Cons(x,xs)) -> True() ordered(Cons(x,Nil())) -> True() ordered(Nil()) -> True() ordered[Ite](False(),xs) -> False() ordered[Ite](True(),Cons(x,xs)) -> ordered(xs) - Signature: { [4] xs + [23] = ordered[Ite](<(x',x),Cons(x',Cons(x,xs))) Following rules are (at-least) weakly oriented: <(x,0()) = [3] >= [1] = False() <(0(),S(y)) = [3] >= [0] = True() <(S(x),S(y)) = [3] >= [3] = <(x,y) goal(xs) = [4] xs + [1] >= [4] xs + [9] = ordered(xs) notEmpty(Cons(x,xs)) = [0] >= [0] = True() notEmpty(Nil()) = [0] >= [1] = False() ordered(Cons(x,Nil())) = [25] >= [0] = True() ordered(Nil()) = [17] >= [0] = True() ordered[Ite](False(),xs) = [4] xs + [5] >= [1] = False() ordered[Ite](True(),Cons(x,xs)) = [4] xs + [12] >= [4] xs + [9] = ordered(xs) Further, it can be verified that all rules not oriented are covered by the weightgap condition. * Step 3: WeightGap WORST_CASE(?,O(n^1)) + Considered Problem: - Strict TRS: goal(xs) -> ordered(xs) notEmpty(Nil()) -> False() - Weak TRS: <(x,0()) -> False() <(0(),S(y)) -> True() <(S(x),S(y)) -> <(x,y) notEmpty(Cons(x,xs)) -> True() ordered(Cons(x,Nil())) -> True() ordered(Cons(x',Cons(x,xs))) -> ordered[Ite](<(x',x),Cons(x',Cons(x,xs))) ordered(Nil()) -> True() ordered[Ite](False(),xs) -> False() ordered[Ite](True(),Cons(x,xs)) -> ordered(xs) - Signature: { [10] = False() Following rules are (at-least) weakly oriented: <(x,0()) = [10] >= [10] = False() <(0(),S(y)) = [10] >= [10] = True() <(S(x),S(y)) = [10] >= [10] = <(x,y) goal(xs) = [0] >= [10] = ordered(xs) notEmpty(Cons(x,xs)) = [1] x + [1] xs + [10] >= [10] = True() ordered(Cons(x,Nil())) = [10] >= [10] = True() ordered(Cons(x',Cons(x,xs))) = [10] >= [10] = ordered[Ite](<(x',x),Cons(x',Cons(x,xs))) ordered(Nil()) = [10] >= [10] = True() ordered[Ite](False(),xs) = [10] >= [10] = False() ordered[Ite](True(),Cons(x,xs)) = [10] >= [10] = ordered(xs) Further, it can be verified that all rules not oriented are covered by the weightgap condition. * Step 4: WeightGap WORST_CASE(?,O(n^1)) + Considered Problem: - Strict TRS: goal(xs) -> ordered(xs) - Weak TRS: <(x,0()) -> False() <(0(),S(y)) -> True() <(S(x),S(y)) -> <(x,y) notEmpty(Cons(x,xs)) -> True() notEmpty(Nil()) -> False() ordered(Cons(x,Nil())) -> True() ordered(Cons(x',Cons(x,xs))) -> ordered[Ite](<(x',x),Cons(x',Cons(x,xs))) ordered(Nil()) -> True() ordered[Ite](False(),xs) -> False() ordered[Ite](True(),Cons(x,xs)) -> ordered(xs) - Signature: { [0] = ordered(xs) Following rules are (at-least) weakly oriented: <(x,0()) = [0] >= [0] = False() <(0(),S(y)) = [0] >= [0] = True() <(S(x),S(y)) = [0] >= [0] = <(x,y) notEmpty(Cons(x,xs)) = [0] >= [0] = True() notEmpty(Nil()) = [0] >= [0] = False() ordered(Cons(x,Nil())) = [0] >= [0] = True() ordered(Cons(x',Cons(x,xs))) = [0] >= [0] = ordered[Ite](<(x',x),Cons(x',Cons(x,xs))) ordered(Nil()) = [0] >= [0] = True() ordered[Ite](False(),xs) = [0] >= [0] = False() ordered[Ite](True(),Cons(x,xs)) = [0] >= [0] = ordered(xs) Further, it can be verified that all rules not oriented are covered by the weightgap condition. * Step 5: EmptyProcessor WORST_CASE(?,O(1)) + Considered Problem: - Weak TRS: <(x,0()) -> False() <(0(),S(y)) -> True() <(S(x),S(y)) -> <(x,y) goal(xs) -> ordered(xs) notEmpty(Cons(x,xs)) -> True() notEmpty(Nil()) -> False() ordered(Cons(x,Nil())) -> True() ordered(Cons(x',Cons(x,xs))) -> ordered[Ite](<(x',x),Cons(x',Cons(x,xs))) ordered(Nil()) -> True() ordered[Ite](False(),xs) -> False() ordered[Ite](True(),Cons(x,xs)) -> ordered(xs) - Signature: {