YES We show the termination of the TRS R: f(s(x),y,y) -> f(y,x,s(x)) -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: f#(s(x),y,y) -> f#(y,x,s(x)) and R consists of: r1: f(s(x),y,y) -> f(y,x,s(x)) The estimated dependency graph contains the following SCCs: {p1} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: f#(s(x),y,y) -> f#(y,x,s(x)) and R consists of: r1: f(s(x),y,y) -> f(y,x,s(x)) The set of usable rules consists of (no rules) Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: max/plus interpretation on natural numbers: f#_A(x1,x2,x3) = max{x1 - 1, x2 + 2} s_A(x1) = max{6, x1 + 4} base order 2: precedence: f# = s partial status: pi(f#) = [] pi(s) = [1] The following rules are removed: p1 Then no dependency pair remains.