WORST_CASE(?,O(n^1)) * Step 1: NaturalMI WORST_CASE(?,O(n^1)) + Considered Problem: - Strict TRS: f(f(x)) -> f(c(f(x))) f(f(x)) -> f(d(f(x))) g(c(x)) -> x g(c(1())) -> g(d(h(0()))) g(c(h(0()))) -> g(d(1())) g(d(x)) -> x g(h(x)) -> g(x) - Signature: {f/1,g/1} / {0/0,1/0,c/1,d/1,h/1} - Obligation: innermost runtime complexity wrt. defined symbols {f,g} and constructors {0,1,c,d,h} + 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: none Following symbols are considered usable: {f,g} TcT has computed the following interpretation: p(0) = [0] [0] p(1) = [2] [0] p(c) = [1 1] x1 + [0] [0 0] [2] p(d) = [1 1] x1 + [0] [0 0] [1] p(f) = [0 5] x1 + [0] [0 0] [3] p(g) = [4 2] x1 + [0] [4 1] [1] p(h) = [1 1] x1 + [2] [0 0] [0] Following rules are strictly oriented: f(f(x)) = [15] [3] > [10] [3] = f(c(f(x))) f(f(x)) = [15] [3] > [5] [3] = f(d(f(x))) g(c(x)) = [4 4] x + [4] [4 4] [3] > [1 0] x + [0] [0 1] [0] = x g(c(1())) = [12] [11] > [10] [10] = g(d(h(0()))) g(c(h(0()))) = [12] [11] > [10] [10] = g(d(1())) g(d(x)) = [4 4] x + [2] [4 4] [2] > [1 0] x + [0] [0 1] [0] = x g(h(x)) = [4 4] x + [8] [4 4] [9] > [4 2] x + [0] [4 1] [1] = g(x) Following rules are (at-least) weakly oriented: WORST_CASE(?,O(n^1))