WORST_CASE(?,O(n^1)) * Step 1: NaturalMI WORST_CASE(?,O(n^1)) + Considered Problem: - Strict TRS: 0() -> n__0() activate(X) -> X activate(n__0()) -> 0() activate(n__f(X)) -> f(activate(X)) activate(n__s(X)) -> s(activate(X)) f(X) -> n__f(X) f(0()) -> cons(0(),n__f(n__s(n__0()))) f(s(0())) -> f(p(s(0()))) p(s(X)) -> X s(X) -> n__s(X) - Signature: {0/0,activate/1,f/1,p/1,s/1} / {cons/2,n__0/0,n__f/1,n__s/1} - Obligation: innermost runtime complexity wrt. defined symbols {0,activate,f,p,s} and constructors {cons,n__0,n__f,n__s} + Applied Processor: NaturalMI {miDimension = 2, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Nothing} + Details: We apply a matrix interpretation of kind constructor based matrix interpretation (containing no more than 1 non-zero interpretation-entries in the diagonal of the component-wise maxima): The following argument positions are considered usable: uargs(f) = {1}, uargs(s) = {1} Following symbols are considered usable: {0,activate,f,p,s} TcT has computed the following interpretation: p(0) = [1] [0] p(activate) = [4 4] x1 + [5] [0 2] [0] p(cons) = [0 1] x1 + [1] [0 0] [4] p(f) = [1 4] x1 + [1] [0 0] [4] p(n__0) = [0] [0] p(n__f) = [1 3] x1 + [0] [0 0] [2] p(n__s) = [1 3] x1 + [0] [0 0] [2] p(p) = [1 0] x1 + [0] [1 0] [0] p(s) = [1 4] x1 + [1] [0 0] [3] Following rules are strictly oriented: 0() = [1] [0] > [0] [0] = n__0() activate(X) = [4 4] X + [5] [0 2] [0] > [1 0] X + [0] [0 1] [0] = X activate(n__0()) = [5] [0] > [1] [0] = 0() activate(n__f(X)) = [4 12] X + [13] [0 0] [4] > [4 12] X + [6] [0 0] [4] = f(activate(X)) activate(n__s(X)) = [4 12] X + [13] [0 0] [4] > [4 12] X + [6] [0 0] [3] = s(activate(X)) f(X) = [1 4] X + [1] [0 0] [4] > [1 3] X + [0] [0 0] [2] = n__f(X) f(0()) = [2] [4] > [1] [4] = cons(0(),n__f(n__s(n__0()))) f(s(0())) = [15] [4] > [11] [4] = f(p(s(0()))) p(s(X)) = [1 4] X + [1] [1 4] [1] > [1 0] X + [0] [0 1] [0] = X s(X) = [1 4] X + [1] [0 0] [3] > [1 3] X + [0] [0 0] [2] = n__s(X) Following rules are (at-least) weakly oriented: WORST_CASE(?,O(n^1))