We consider the following Problem: Strict Trs: {*(x, *(minus(y), y)) -> *(minus(*(y, y)), x)} StartTerms: basic terms Strategy: innermost Certificate: YES(?,O(n^1)) Proof: We consider the following Problem: Strict Trs: {*(x, *(minus(y), y)) -> *(minus(*(y, y)), x)} StartTerms: basic terms Strategy: innermost Certificate: YES(?,O(n^1)) Proof: We consider the following Problem: Strict Trs: {*(x, *(minus(y), y)) -> *(minus(*(y, y)), x)} StartTerms: basic terms Strategy: innermost Certificate: YES(?,O(n^1)) Proof: The following argument positions are usable: Uargs(*) = {1}, Uargs(minus) = {1} We have the following constructor-based EDA-non-satisfying and IDA(1)-non-satisfying matrix interpretation: Interpretation Functions: *(x1, x2) = [1 2] x1 + [0 1] x2 + [0] [2 3] [2 3] [3] minus(x1) = [1 0] x1 + [0] [0 0] [0] Hurray, we answered YES(?,O(n^1))