WORST_CASE(Omega(n^1),O(n^1)) * Step 1: Sum WORST_CASE(Omega(n^1),O(n^1)) + Considered Problem: - Strict TRS: h(f(x,y)) -> f(y,f(h(h(x)),a())) - Signature: {h/1} / {a/0,f/2} - Obligation: innermost runtime complexity wrt. defined symbols {h} and constructors {a,f} + Applied Processor: Sum {left = someStrategy, right = someStrategy} + Details: () ** Step 1.a:1: DecreasingLoops WORST_CASE(Omega(n^1),?) + Considered Problem: - Strict TRS: h(f(x,y)) -> f(y,f(h(h(x)),a())) - Signature: {h/1} / {a/0,f/2} - Obligation: innermost runtime complexity wrt. defined symbols {h} and constructors {a,f} + Applied Processor: DecreasingLoops {bound = AnyLoop, narrow = 10} + Details: The system has following decreasing Loops: h(x){x -> f(x,y)} = h(f(x,y)) ->^+ f(y,f(h(h(x)),a())) = C[h(x) = h(x){}] ** Step 1.b:1: MI WORST_CASE(?,O(n^1)) + Considered Problem: - Strict TRS: h(f(x,y)) -> f(y,f(h(h(x)),a())) - Signature: {h/1} / {a/0,f/2} - Obligation: innermost runtime complexity wrt. defined symbols {h} and constructors {a,f} + Applied Processor: MI {miKind = Automaton (Just 1), miDimension = 3, miUArgs = UArgs, miURules = URules, miSelector = Just any strict-rules} + Details: We apply a matrix interpretation of kind Automaton (Just 1): Following symbols are considered usable: {h} TcT has computed the following interpretation: p(a) = [2] [0] [4] p(f) = [1 0 0] [1 0 0] [0] [0 1 1] x_1 + [0 0 0] x_2 + [2] [0 0 0] [0 1 1] [2] p(h) = [1 2 0] [1] [0 0 1] x_1 + [0] [0 5 0] [0] Following rules are strictly oriented: h(f(x,y)) = [1 2 2] [1 0 0] [5] [0 0 0] x + [0 1 1] y + [2] [0 5 5] [0 0 0] [10] > [1 2 2] [1 0 0] [4] [0 0 0] x + [0 1 1] y + [2] [0 5 5] [0 0 0] [10] = f(y,f(h(h(x)),a())) Following rules are (at-least) weakly oriented: ** Step 1.b:2: EmptyProcessor WORST_CASE(?,O(1)) + Considered Problem: - Weak TRS: h(f(x,y)) -> f(y,f(h(h(x)),a())) - Signature: {h/1} / {a/0,f/2} - Obligation: innermost runtime complexity wrt. defined symbols {h} and constructors {a,f} + Applied Processor: EmptyProcessor + Details: The problem is already closed. The intended complexity is O(1). WORST_CASE(Omega(n^1),O(n^1))