* Step 1: NaturalPI WORST_CASE(?,O(n^2)) + Considered Problem: - Strict TRS: *(x,oplus(y,z)) -> oplus(*(x,y),*(x,z)) *(+(x,y),z) -> oplus(*(x,z),*(y,z)) *(1(),y) -> y - Signature: {*/2} / {+/2,1/0,oplus/2} - Obligation: innermost runtime complexity wrt. defined symbols {*} and constructors {+,1,oplus} + Applied Processor: NaturalPI {shape = Mixed 2, restrict = Restrict, uargs = UArgs, urules = URules, selector = Just any strict-rules} + Details: We apply a polynomial interpretation of kind constructor-based(mixed(2)): The following argument positions are considered usable: uargs(oplus) = {1,2} Following symbols are considered usable: {*} TcT has computed the following interpretation: p(*) = 3*x1 + 5*x1*x2 + x2 p(+) = 1 + x1 + x2 p(1) = 0 p(oplus) = 1 + x1 + x2 Following rules are strictly oriented: *(+(x,y),z) = 3 + 3*x + 5*x*z + 3*y + 5*y*z + 6*z > 1 + 3*x + 5*x*z + 3*y + 5*y*z + 2*z = oplus(*(x,z),*(y,z)) Following rules are (at-least) weakly oriented: *(x,oplus(y,z)) = 1 + 8*x + 5*x*y + 5*x*z + y + z >= 1 + 6*x + 5*x*y + 5*x*z + y + z = oplus(*(x,y),*(x,z)) *(1(),y) = y >= y = y * Step 2: NaturalPI WORST_CASE(?,O(n^2)) + Considered Problem: - Strict TRS: *(x,oplus(y,z)) -> oplus(*(x,y),*(x,z)) *(1(),y) -> y - Weak TRS: *(+(x,y),z) -> oplus(*(x,z),*(y,z)) - Signature: {*/2} / {+/2,1/0,oplus/2} - Obligation: innermost runtime complexity wrt. defined symbols {*} and constructors {+,1,oplus} + Applied Processor: NaturalPI {shape = Mixed 2, restrict = Restrict, uargs = UArgs, urules = URules, selector = Just any strict-rules} + Details: We apply a polynomial interpretation of kind constructor-based(mixed(2)): The following argument positions are considered usable: uargs(oplus) = {1,2} Following symbols are considered usable: {*} TcT has computed the following interpretation: p(*) = 2 + 5*x1 + 6*x1*x2 + 6*x2 p(+) = 1 + x1 + x2 p(1) = 0 p(oplus) = 1 + x1 + x2 Following rules are strictly oriented: *(x,oplus(y,z)) = 8 + 11*x + 6*x*y + 6*x*z + 6*y + 6*z > 5 + 10*x + 6*x*y + 6*x*z + 6*y + 6*z = oplus(*(x,y),*(x,z)) *(1(),y) = 2 + 6*y > y = y Following rules are (at-least) weakly oriented: *(+(x,y),z) = 7 + 5*x + 6*x*z + 5*y + 6*y*z + 12*z >= 5 + 5*x + 6*x*z + 5*y + 6*y*z + 12*z = oplus(*(x,z),*(y,z)) * Step 3: EmptyProcessor WORST_CASE(?,O(1)) + Considered Problem: - Weak TRS: *(x,oplus(y,z)) -> oplus(*(x,y),*(x,z)) *(+(x,y),z) -> oplus(*(x,z),*(y,z)) *(1(),y) -> y - Signature: {*/2} / {+/2,1/0,oplus/2} - Obligation: innermost runtime complexity wrt. defined symbols {*} and constructors {+,1,oplus} + Applied Processor: EmptyProcessor + Details: The problem is already closed. The intended complexity is O(1). WORST_CASE(?,O(n^2))