YES TRS: active(app(nil(),YS)) -> mark(YS) active(app(cons(X,XS),YS)) -> mark(cons(X,app(XS,YS))) active(from(X)) -> mark(cons(X,from(s(X)))) active(zWadr(nil(),YS)) -> mark(nil()) active(zWadr(XS,nil())) -> mark(nil()) active(zWadr(cons(X,XS),cons(Y,YS))) -> mark(cons(app(Y,cons(X,nil())),zWadr(XS,YS))) active(prefix(L)) -> mark(cons(nil(),zWadr(L,prefix(L)))) mark(app(X1,X2)) -> active(app(mark(X1),mark(X2))) mark(nil()) -> active(nil()) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(from(X)) -> active(from(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(zWadr(X1,X2)) -> active(zWadr(mark(X1),mark(X2))) mark(prefix(X)) -> active(prefix(mark(X))) app(mark(X1),X2) -> app(X1,X2) app(X1,mark(X2)) -> app(X1,X2) app(active(X1),X2) -> app(X1,X2) app(X1,active(X2)) -> app(X1,X2) cons(mark(X1),X2) -> cons(X1,X2) cons(X1,mark(X2)) -> cons(X1,X2) cons(active(X1),X2) -> cons(X1,X2) cons(X1,active(X2)) -> cons(X1,X2) from(mark(X)) -> from(X) from(active(X)) -> from(X) s(mark(X)) -> s(X) s(active(X)) -> s(X) zWadr(mark(X1),X2) -> zWadr(X1,X2) zWadr(X1,mark(X2)) -> zWadr(X1,X2) zWadr(active(X1),X2) -> zWadr(X1,X2) zWadr(X1,active(X2)) -> zWadr(X1,X2) prefix(mark(X)) -> prefix(X) prefix(active(X)) -> prefix(X) max/plus interpretations on N: active_A(x1) = max{91, x1} active#_A(x1) = max{121, 94 + x1} app_A(x1,x2) = max{76, 72 + x1, 49 + x2} app#_A(x1,x2) = max{147, 126, 125} nil_A = 323 nil#_A = 419 mark_A(x1) = max{4, 15 + x1} mark#_A(x1) = max{127, 122 + x1} cons_A(x1,x2) = max{35, 77 + x1, 20} cons#_A(x1,x2) = max{123, 124, 124} from_A(x1) = max{94, 106 + x1} from#_A(x1) = max{0, 1} s_A(x1) = max{76, 30 + x1} s#_A(x1) = max{93, 2} zWadr_A(x1,x2) = max{350, 156 + x1, 321 + x2} zWadr#_A(x1,x2) = max{418, 327, 418} prefix_A(x1) = max{429, 34 + x1} prefix#_A(x1) = max{93, 90} precedence: app = s > mark > from > active > prefix > cons > zWadr > nil