ceta_eq: termination proof not accepted 1: error below switch to dependency pairs 1.1: error below the dependency graph processor 1.1.2: error below the reduction pair processor 1.1.2.1: error when applying the reduction pair processor with usable rules to remove from the DP problem pairs: min#(min(X, Y), Z) -> min#(X, plus(Y, Z)) rules: min(X, 0) -> X min(s(X), s(Y)) -> min(X, Y) min(min(X, Y), Z) -> min(X, plus(Y, Z)) plus(0, Y) -> Y plus(s(X), Y) -> s(plus(X, Y)) quot(0, s(Y)) -> 0 quot(s(X), s(Y)) -> s(quot(min(X, Y), s(Y))) the pairs min#(min(X, Y), Z) -> min#(X, plus(Y, Z)) could not apply the generic root reduction pair processor with the following SCNP-version with mu = MS and the level mapping defined by pi(min#) = [(epsilon,0),(2,1)] Argument Filter: pi(min#/2) = [1] pi(min/2) = [1,2] pi(Z/0) = [] pi(plus/2) = 2 pi(0/0) = [] pi(s/1) = 1 RPO with the following precedence precedence(min#[2]) = 0 precedence(min[2]) = 1 precedence(Z[0]) = 2 precedence(0[0]) = 3 precedence(_) = 0 and the following status status(min#[2]) = mul status(min[2]) = mul status(Z[0]) = mul status(0[0]) = mul status(_) = lex problem when orienting DPs cannot orient pair min#(min(X, Y), Z) -> min#(X, plus(Y, Z)) strictly: [(min#(min(X, Y), Z),0),(Z,1)] >mu [(min#(X, plus(Y, Z)),0),(plus(Y, Z),1)] could not be ensured