MAYBE Problem: active(from(X)) -> mark(cons(X,from(s(X)))) active(first(0(),Z)) -> mark(nil()) active(first(s(X),cons(Y,Z))) -> mark(cons(Y,first(X,Z))) active(sel(0(),cons(X,Z))) -> mark(X) active(sel(s(X),cons(Y,Z))) -> mark(sel(X,Z)) mark(from(X)) -> active(from(mark(X))) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(s(X)) -> active(s(mark(X))) mark(first(X1,X2)) -> active(first(mark(X1),mark(X2))) mark(0()) -> active(0()) mark(nil()) -> active(nil()) mark(sel(X1,X2)) -> active(sel(mark(X1),mark(X2))) from(mark(X)) -> from(X) from(active(X)) -> from(X) 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) s(mark(X)) -> s(X) s(active(X)) -> s(X) first(mark(X1),X2) -> first(X1,X2) first(X1,mark(X2)) -> first(X1,X2) first(active(X1),X2) -> first(X1,X2) first(X1,active(X2)) -> first(X1,X2) sel(mark(X1),X2) -> sel(X1,X2) sel(X1,mark(X2)) -> sel(X1,X2) sel(active(X1),X2) -> sel(X1,X2) sel(X1,active(X2)) -> sel(X1,X2) Proof: DP Processor: DPs: active#(from(X)) -> s#(X) active#(from(X)) -> from#(s(X)) active#(from(X)) -> cons#(X,from(s(X))) active#(from(X)) -> mark#(cons(X,from(s(X)))) active#(first(0(),Z)) -> mark#(nil()) active#(first(s(X),cons(Y,Z))) -> first#(X,Z) active#(first(s(X),cons(Y,Z))) -> cons#(Y,first(X,Z)) active#(first(s(X),cons(Y,Z))) -> mark#(cons(Y,first(X,Z))) active#(sel(0(),cons(X,Z))) -> mark#(X) active#(sel(s(X),cons(Y,Z))) -> sel#(X,Z) active#(sel(s(X),cons(Y,Z))) -> mark#(sel(X,Z)) mark#(from(X)) -> mark#(X) mark#(from(X)) -> from#(mark(X)) mark#(from(X)) -> active#(from(mark(X))) mark#(cons(X1,X2)) -> mark#(X1) mark#(cons(X1,X2)) -> cons#(mark(X1),X2) mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) mark#(s(X)) -> mark#(X) mark#(s(X)) -> s#(mark(X)) mark#(s(X)) -> active#(s(mark(X))) mark#(first(X1,X2)) -> mark#(X2) mark#(first(X1,X2)) -> mark#(X1) mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) mark#(0()) -> active#(0()) mark#(nil()) -> active#(nil()) mark#(sel(X1,X2)) -> mark#(X2) mark#(sel(X1,X2)) -> mark#(X1) mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) from#(mark(X)) -> from#(X) from#(active(X)) -> from#(X) 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) s#(mark(X)) -> s#(X) s#(active(X)) -> s#(X) first#(mark(X1),X2) -> first#(X1,X2) first#(X1,mark(X2)) -> first#(X1,X2) first#(active(X1),X2) -> first#(X1,X2) first#(X1,active(X2)) -> first#(X1,X2) sel#(mark(X1),X2) -> sel#(X1,X2) sel#(X1,mark(X2)) -> sel#(X1,X2) sel#(active(X1),X2) -> sel#(X1,X2) sel#(X1,active(X2)) -> sel#(X1,X2) TRS: active(from(X)) -> mark(cons(X,from(s(X)))) active(first(0(),Z)) -> mark(nil()) active(first(s(X),cons(Y,Z))) -> mark(cons(Y,first(X,Z))) active(sel(0(),cons(X,Z))) -> mark(X) active(sel(s(X),cons(Y,Z))) -> mark(sel(X,Z)) mark(from(X)) -> active(from(mark(X))) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(s(X)) -> active(s(mark(X))) mark(first(X1,X2)) -> active(first(mark(X1),mark(X2))) mark(0()) -> active(0()) mark(nil()) -> active(nil()) mark(sel(X1,X2)) -> active(sel(mark(X1),mark(X2))) from(mark(X)) -> from(X) from(active(X)) -> from(X) 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) s(mark(X)) -> s(X) s(active(X)) -> s(X) first(mark(X1),X2) -> first(X1,X2) first(X1,mark(X2)) -> first(X1,X2) first(active(X1),X2) -> first(X1,X2) first(X1,active(X2)) -> first(X1,X2) sel(mark(X1),X2) -> sel(X1,X2) sel(X1,mark(X2)) -> sel(X1,X2) sel(active(X1),X2) -> sel(X1,X2) sel(X1,active(X2)) -> sel(X1,X2) CDG Processor: DPs: active#(from(X)) -> s#(X) active#(from(X)) -> from#(s(X)) active#(from(X)) -> cons#(X,from(s(X))) active#(from(X)) -> mark#(cons(X,from(s(X)))) active#(first(0(),Z)) -> mark#(nil()) active#(first(s(X),cons(Y,Z))) -> first#(X,Z) active#(first(s(X),cons(Y,Z))) -> cons#(Y,first(X,Z)) active#(first(s(X),cons(Y,Z))) -> mark#(cons(Y,first(X,Z))) active#(sel(0(),cons(X,Z))) -> mark#(X) active#(sel(s(X),cons(Y,Z))) -> sel#(X,Z) active#(sel(s(X),cons(Y,Z))) -> mark#(sel(X,Z)) mark#(from(X)) -> mark#(X) mark#(from(X)) -> from#(mark(X)) mark#(from(X)) -> active#(from(mark(X))) mark#(cons(X1,X2)) -> mark#(X1) mark#(cons(X1,X2)) -> cons#(mark(X1),X2) mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) mark#(s(X)) -> mark#(X) mark#(s(X)) -> s#(mark(X)) mark#(s(X)) -> active#(s(mark(X))) mark#(first(X1,X2)) -> mark#(X2) mark#(first(X1,X2)) -> mark#(X1) mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) mark#(0()) -> active#(0()) mark#(nil()) -> active#(nil()) mark#(sel(X1,X2)) -> mark#(X2) mark#(sel(X1,X2)) -> mark#(X1) mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) from#(mark(X)) -> from#(X) from#(active(X)) -> from#(X) 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) s#(mark(X)) -> s#(X) s#(active(X)) -> s#(X) first#(mark(X1),X2) -> first#(X1,X2) first#(X1,mark(X2)) -> first#(X1,X2) first#(active(X1),X2) -> first#(X1,X2) first#(X1,active(X2)) -> first#(X1,X2) sel#(mark(X1),X2) -> sel#(X1,X2) sel#(X1,mark(X2)) -> sel#(X1,X2) sel#(active(X1),X2) -> sel#(X1,X2) sel#(X1,active(X2)) -> sel#(X1,X2) TRS: active(from(X)) -> mark(cons(X,from(s(X)))) active(first(0(),Z)) -> mark(nil()) active(first(s(X),cons(Y,Z))) -> mark(cons(Y,first(X,Z))) active(sel(0(),cons(X,Z))) -> mark(X) active(sel(s(X),cons(Y,Z))) -> mark(sel(X,Z)) mark(from(X)) -> active(from(mark(X))) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(s(X)) -> active(s(mark(X))) mark(first(X1,X2)) -> active(first(mark(X1),mark(X2))) mark(0()) -> active(0()) mark(nil()) -> active(nil()) mark(sel(X1,X2)) -> active(sel(mark(X1),mark(X2))) from(mark(X)) -> from(X) from(active(X)) -> from(X) 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) s(mark(X)) -> s(X) s(active(X)) -> s(X) first(mark(X1),X2) -> first(X1,X2) first(X1,mark(X2)) -> first(X1,X2) first(active(X1),X2) -> first(X1,X2) first(X1,active(X2)) -> first(X1,X2) sel(mark(X1),X2) -> sel(X1,X2) sel(X1,mark(X2)) -> sel(X1,X2) sel(active(X1),X2) -> sel(X1,X2) sel(X1,active(X2)) -> sel(X1,X2) graph: sel#(mark(X1),X2) -> sel#(X1,X2) -> sel#(mark(X1),X2) -> sel#(X1,X2) sel#(mark(X1),X2) -> sel#(X1,X2) -> sel#(X1,mark(X2)) -> sel#(X1,X2) sel#(mark(X1),X2) -> sel#(X1,X2) -> sel#(active(X1),X2) -> sel#(X1,X2) sel#(mark(X1),X2) -> sel#(X1,X2) -> sel#(X1,active(X2)) -> sel#(X1,X2) sel#(active(X1),X2) -> sel#(X1,X2) -> sel#(mark(X1),X2) -> sel#(X1,X2) sel#(active(X1),X2) -> sel#(X1,X2) -> sel#(X1,mark(X2)) -> sel#(X1,X2) sel#(active(X1),X2) -> sel#(X1,X2) -> sel#(active(X1),X2) -> sel#(X1,X2) sel#(active(X1),X2) -> sel#(X1,X2) -> sel#(X1,active(X2)) -> sel#(X1,X2) sel#(X1,mark(X2)) -> sel#(X1,X2) -> sel#(mark(X1),X2) -> sel#(X1,X2) sel#(X1,mark(X2)) -> sel#(X1,X2) -> sel#(X1,mark(X2)) -> sel#(X1,X2) sel#(X1,mark(X2)) -> sel#(X1,X2) -> sel#(active(X1),X2) -> sel#(X1,X2) sel#(X1,mark(X2)) -> sel#(X1,X2) -> sel#(X1,active(X2)) -> sel#(X1,X2) sel#(X1,active(X2)) -> sel#(X1,X2) -> sel#(mark(X1),X2) -> sel#(X1,X2) sel#(X1,active(X2)) -> sel#(X1,X2) -> sel#(X1,mark(X2)) -> sel#(X1,X2) sel#(X1,active(X2)) -> sel#(X1,X2) -> sel#(active(X1),X2) -> sel#(X1,X2) sel#(X1,active(X2)) -> sel#(X1,X2) -> sel#(X1,active(X2)) -> sel#(X1,X2) first#(mark(X1),X2) -> first#(X1,X2) -> first#(mark(X1),X2) -> first#(X1,X2) first#(mark(X1),X2) -> first#(X1,X2) -> first#(X1,mark(X2)) -> first#(X1,X2) first#(mark(X1),X2) -> first#(X1,X2) -> first#(active(X1),X2) -> first#(X1,X2) first#(mark(X1),X2) -> first#(X1,X2) -> first#(X1,active(X2)) -> first#(X1,X2) first#(active(X1),X2) -> first#(X1,X2) -> first#(mark(X1),X2) -> first#(X1,X2) first#(active(X1),X2) -> first#(X1,X2) -> first#(X1,mark(X2)) -> first#(X1,X2) first#(active(X1),X2) -> first#(X1,X2) -> first#(active(X1),X2) -> first#(X1,X2) first#(active(X1),X2) -> first#(X1,X2) -> first#(X1,active(X2)) -> first#(X1,X2) first#(X1,mark(X2)) -> first#(X1,X2) -> first#(mark(X1),X2) -> first#(X1,X2) first#(X1,mark(X2)) -> first#(X1,X2) -> first#(X1,mark(X2)) -> first#(X1,X2) first#(X1,mark(X2)) -> first#(X1,X2) -> first#(active(X1),X2) -> first#(X1,X2) first#(X1,mark(X2)) -> first#(X1,X2) -> first#(X1,active(X2)) -> first#(X1,X2) first#(X1,active(X2)) -> first#(X1,X2) -> first#(mark(X1),X2) -> first#(X1,X2) first#(X1,active(X2)) -> first#(X1,X2) -> first#(X1,mark(X2)) -> first#(X1,X2) first#(X1,active(X2)) -> first#(X1,X2) -> first#(active(X1),X2) -> first#(X1,X2) first#(X1,active(X2)) -> first#(X1,X2) -> first#(X1,active(X2)) -> first#(X1,X2) mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) -> sel#(mark(X1),X2) -> sel#(X1,X2) mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) -> sel#(X1,mark(X2)) -> sel#(X1,X2) mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) -> sel#(active(X1),X2) -> sel#(X1,X2) mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) -> sel#(X1,active(X2)) -> sel#(X1,X2) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(from(X)) -> mark#(X) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(from(X)) -> from#(mark(X)) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(from(X)) -> active#(from(mark(X))) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(cons(X1,X2)) -> mark#(X1) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(cons(X1,X2)) -> cons#(mark(X1),X2) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(s(X)) -> mark#(X) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(s(X)) -> s#(mark(X)) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(s(X)) -> active#(s(mark(X))) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(first(X1,X2)) -> mark#(X2) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(first(X1,X2)) -> mark#(X1) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(0()) -> active#(0()) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(nil()) -> active#(nil()) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(sel(X1,X2)) -> mark#(X2) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(sel(X1,X2)) -> mark#(X1) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) mark#(sel(X1,X2)) -> mark#(X2) -> mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(from(X)) -> mark#(X) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(from(X)) -> from#(mark(X)) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(from(X)) -> active#(from(mark(X))) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(cons(X1,X2)) -> mark#(X1) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(cons(X1,X2)) -> cons#(mark(X1),X2) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(s(X)) -> mark#(X) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(s(X)) -> s#(mark(X)) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(s(X)) -> active#(s(mark(X))) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(first(X1,X2)) -> mark#(X2) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(first(X1,X2)) -> mark#(X1) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(0()) -> active#(0()) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(nil()) -> active#(nil()) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(sel(X1,X2)) -> mark#(X2) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(sel(X1,X2)) -> mark#(X1) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) mark#(sel(X1,X2)) -> mark#(X1) -> mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) -> active#(sel(0(),cons(X,Z))) -> mark#(X) mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) -> active#(sel(s(X),cons(Y,Z))) -> sel#(X,Z) mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) -> active#(sel(s(X),cons(Y,Z))) -> mark#(sel(X,Z)) mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) -> first#(mark(X1),X2) -> first#(X1,X2) mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) -> first#(X1,mark(X2)) -> first#(X1,X2) mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) -> first#(active(X1),X2) -> first#(X1,X2) mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) -> first#(X1,active(X2)) -> first#(X1,X2) mark#(first(X1,X2)) -> mark#(X2) -> mark#(from(X)) -> mark#(X) mark#(first(X1,X2)) -> mark#(X2) -> mark#(from(X)) -> from#(mark(X)) mark#(first(X1,X2)) -> mark#(X2) -> mark#(from(X)) -> active#(from(mark(X))) mark#(first(X1,X2)) -> mark#(X2) -> mark#(cons(X1,X2)) -> mark#(X1) mark#(first(X1,X2)) -> mark#(X2) -> mark#(cons(X1,X2)) -> cons#(mark(X1),X2) mark#(first(X1,X2)) -> mark#(X2) -> mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) mark#(first(X1,X2)) -> mark#(X2) -> mark#(s(X)) -> mark#(X) mark#(first(X1,X2)) -> mark#(X2) -> mark#(s(X)) -> s#(mark(X)) mark#(first(X1,X2)) -> mark#(X2) -> mark#(s(X)) -> active#(s(mark(X))) mark#(first(X1,X2)) -> mark#(X2) -> mark#(first(X1,X2)) -> mark#(X2) mark#(first(X1,X2)) -> mark#(X2) -> mark#(first(X1,X2)) -> mark#(X1) mark#(first(X1,X2)) -> mark#(X2) -> mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) mark#(first(X1,X2)) -> mark#(X2) -> mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) mark#(first(X1,X2)) -> mark#(X2) -> mark#(0()) -> active#(0()) mark#(first(X1,X2)) -> mark#(X2) -> mark#(nil()) -> active#(nil()) mark#(first(X1,X2)) -> mark#(X2) -> mark#(sel(X1,X2)) -> mark#(X2) mark#(first(X1,X2)) -> mark#(X2) -> mark#(sel(X1,X2)) -> mark#(X1) mark#(first(X1,X2)) -> mark#(X2) -> mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) mark#(first(X1,X2)) -> mark#(X2) -> mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) mark#(first(X1,X2)) -> mark#(X1) -> mark#(from(X)) -> mark#(X) mark#(first(X1,X2)) -> mark#(X1) -> mark#(from(X)) -> from#(mark(X)) mark#(first(X1,X2)) -> mark#(X1) -> mark#(from(X)) -> active#(from(mark(X))) mark#(first(X1,X2)) -> mark#(X1) -> mark#(cons(X1,X2)) -> mark#(X1) mark#(first(X1,X2)) -> mark#(X1) -> mark#(cons(X1,X2)) -> cons#(mark(X1),X2) mark#(first(X1,X2)) -> mark#(X1) -> mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) mark#(first(X1,X2)) -> mark#(X1) -> mark#(s(X)) -> mark#(X) mark#(first(X1,X2)) -> mark#(X1) -> mark#(s(X)) -> s#(mark(X)) mark#(first(X1,X2)) -> mark#(X1) -> mark#(s(X)) -> active#(s(mark(X))) mark#(first(X1,X2)) -> mark#(X1) -> mark#(first(X1,X2)) -> mark#(X2) mark#(first(X1,X2)) -> mark#(X1) -> mark#(first(X1,X2)) -> mark#(X1) mark#(first(X1,X2)) -> mark#(X1) -> mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) mark#(first(X1,X2)) -> mark#(X1) -> mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) mark#(first(X1,X2)) -> mark#(X1) -> mark#(0()) -> active#(0()) mark#(first(X1,X2)) -> mark#(X1) -> mark#(nil()) -> active#(nil()) mark#(first(X1,X2)) -> mark#(X1) -> mark#(sel(X1,X2)) -> mark#(X2) mark#(first(X1,X2)) -> mark#(X1) -> mark#(sel(X1,X2)) -> mark#(X1) mark#(first(X1,X2)) -> mark#(X1) -> mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) mark#(first(X1,X2)) -> mark#(X1) -> mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) -> active#(first(0(),Z)) -> mark#(nil()) mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) -> active#(first(s(X),cons(Y,Z))) -> first#(X,Z) mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) -> active#(first(s(X),cons(Y,Z))) -> cons#(Y,first(X,Z)) mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) -> active#(first(s(X),cons(Y,Z))) -> mark#(cons(Y,first(X,Z))) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(from(X)) -> mark#(X) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(from(X)) -> from#(mark(X)) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(from(X)) -> active#(from(mark(X))) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(cons(X1,X2)) -> mark#(X1) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(cons(X1,X2)) -> cons#(mark(X1),X2) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(s(X)) -> mark#(X) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(s(X)) -> s#(mark(X)) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(s(X)) -> active#(s(mark(X))) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(first(X1,X2)) -> mark#(X2) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(first(X1,X2)) -> mark#(X1) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(0()) -> active#(0()) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(nil()) -> active#(nil()) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(sel(X1,X2)) -> mark#(X2) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(sel(X1,X2)) -> mark#(X1) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) mark#(cons(X1,X2)) -> cons#(mark(X1),X2) -> cons#(mark(X1),X2) -> cons#(X1,X2) mark#(cons(X1,X2)) -> cons#(mark(X1),X2) -> cons#(X1,mark(X2)) -> cons#(X1,X2) mark#(cons(X1,X2)) -> cons#(mark(X1),X2) -> cons#(active(X1),X2) -> cons#(X1,X2) mark#(cons(X1,X2)) -> cons#(mark(X1),X2) -> cons#(X1,active(X2)) -> cons#(X1,X2) mark#(s(X)) -> mark#(X) -> mark#(from(X)) -> mark#(X) mark#(s(X)) -> mark#(X) -> mark#(from(X)) -> from#(mark(X)) mark#(s(X)) -> mark#(X) -> mark#(from(X)) -> active#(from(mark(X))) mark#(s(X)) -> mark#(X) -> mark#(cons(X1,X2)) -> mark#(X1) mark#(s(X)) -> mark#(X) -> mark#(cons(X1,X2)) -> cons#(mark(X1),X2) mark#(s(X)) -> mark#(X) -> mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) mark#(s(X)) -> mark#(X) -> mark#(s(X)) -> mark#(X) mark#(s(X)) -> mark#(X) -> mark#(s(X)) -> s#(mark(X)) mark#(s(X)) -> mark#(X) -> mark#(s(X)) -> active#(s(mark(X))) mark#(s(X)) -> mark#(X) -> mark#(first(X1,X2)) -> mark#(X2) mark#(s(X)) -> mark#(X) -> mark#(first(X1,X2)) -> mark#(X1) mark#(s(X)) -> mark#(X) -> mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) mark#(s(X)) -> mark#(X) -> mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) mark#(s(X)) -> mark#(X) -> mark#(0()) -> active#(0()) mark#(s(X)) -> mark#(X) -> mark#(nil()) -> active#(nil()) mark#(s(X)) -> mark#(X) -> mark#(sel(X1,X2)) -> mark#(X2) mark#(s(X)) -> mark#(X) -> mark#(sel(X1,X2)) -> mark#(X1) mark#(s(X)) -> mark#(X) -> mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) mark#(s(X)) -> mark#(X) -> mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) mark#(s(X)) -> s#(mark(X)) -> s#(mark(X)) -> s#(X) mark#(s(X)) -> s#(mark(X)) -> s#(active(X)) -> s#(X) mark#(from(X)) -> mark#(X) -> mark#(from(X)) -> mark#(X) mark#(from(X)) -> mark#(X) -> mark#(from(X)) -> from#(mark(X)) mark#(from(X)) -> mark#(X) -> mark#(from(X)) -> active#(from(mark(X))) mark#(from(X)) -> mark#(X) -> mark#(cons(X1,X2)) -> mark#(X1) mark#(from(X)) -> mark#(X) -> mark#(cons(X1,X2)) -> cons#(mark(X1),X2) mark#(from(X)) -> mark#(X) -> mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) mark#(from(X)) -> mark#(X) -> mark#(s(X)) -> mark#(X) mark#(from(X)) -> mark#(X) -> mark#(s(X)) -> s#(mark(X)) mark#(from(X)) -> mark#(X) -> mark#(s(X)) -> active#(s(mark(X))) mark#(from(X)) -> mark#(X) -> mark#(first(X1,X2)) -> mark#(X2) mark#(from(X)) -> mark#(X) -> mark#(first(X1,X2)) -> mark#(X1) mark#(from(X)) -> mark#(X) -> mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) mark#(from(X)) -> mark#(X) -> mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) mark#(from(X)) -> mark#(X) -> mark#(0()) -> active#(0()) mark#(from(X)) -> mark#(X) -> mark#(nil()) -> active#(nil()) mark#(from(X)) -> mark#(X) -> mark#(sel(X1,X2)) -> mark#(X2) mark#(from(X)) -> mark#(X) -> mark#(sel(X1,X2)) -> mark#(X1) mark#(from(X)) -> mark#(X) -> mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) mark#(from(X)) -> mark#(X) -> mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) mark#(from(X)) -> from#(mark(X)) -> from#(mark(X)) -> from#(X) mark#(from(X)) -> from#(mark(X)) -> from#(active(X)) -> from#(X) mark#(from(X)) -> active#(from(mark(X))) -> active#(from(X)) -> s#(X) mark#(from(X)) -> active#(from(mark(X))) -> active#(from(X)) -> from#(s(X)) mark#(from(X)) -> active#(from(mark(X))) -> active#(from(X)) -> cons#(X,from(s(X))) mark#(from(X)) -> active#(from(mark(X))) -> active#(from(X)) -> mark#(cons(X,from(s(X)))) cons#(mark(X1),X2) -> cons#(X1,X2) -> cons#(mark(X1),X2) -> cons#(X1,X2) cons#(mark(X1),X2) -> cons#(X1,X2) -> cons#(X1,mark(X2)) -> cons#(X1,X2) cons#(mark(X1),X2) -> cons#(X1,X2) -> cons#(active(X1),X2) -> cons#(X1,X2) cons#(mark(X1),X2) -> cons#(X1,X2) -> cons#(X1,active(X2)) -> cons#(X1,X2) cons#(active(X1),X2) -> cons#(X1,X2) -> cons#(mark(X1),X2) -> cons#(X1,X2) cons#(active(X1),X2) -> cons#(X1,X2) -> cons#(X1,mark(X2)) -> cons#(X1,X2) cons#(active(X1),X2) -> cons#(X1,X2) -> cons#(active(X1),X2) -> cons#(X1,X2) cons#(active(X1),X2) -> cons#(X1,X2) -> cons#(X1,active(X2)) -> cons#(X1,X2) cons#(X1,mark(X2)) -> cons#(X1,X2) -> cons#(mark(X1),X2) -> cons#(X1,X2) cons#(X1,mark(X2)) -> cons#(X1,X2) -> cons#(X1,mark(X2)) -> cons#(X1,X2) cons#(X1,mark(X2)) -> cons#(X1,X2) -> cons#(active(X1),X2) -> cons#(X1,X2) cons#(X1,mark(X2)) -> cons#(X1,X2) -> cons#(X1,active(X2)) -> cons#(X1,X2) cons#(X1,active(X2)) -> cons#(X1,X2) -> cons#(mark(X1),X2) -> cons#(X1,X2) cons#(X1,active(X2)) -> cons#(X1,X2) -> cons#(X1,mark(X2)) -> cons#(X1,X2) cons#(X1,active(X2)) -> cons#(X1,X2) -> cons#(active(X1),X2) -> cons#(X1,X2) cons#(X1,active(X2)) -> cons#(X1,X2) -> cons#(X1,active(X2)) -> cons#(X1,X2) from#(mark(X)) -> from#(X) -> from#(mark(X)) -> from#(X) from#(mark(X)) -> from#(X) -> from#(active(X)) -> from#(X) from#(active(X)) -> from#(X) -> from#(mark(X)) -> from#(X) from#(active(X)) -> from#(X) -> from#(active(X)) -> from#(X) s#(mark(X)) -> s#(X) -> s#(mark(X)) -> s#(X) s#(mark(X)) -> s#(X) -> s#(active(X)) -> s#(X) s#(active(X)) -> s#(X) -> s#(mark(X)) -> s#(X) s#(active(X)) -> s#(X) -> s#(active(X)) -> s#(X) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(from(X)) -> mark#(X) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(from(X)) -> from#(mark(X)) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(from(X)) -> active#(from(mark(X))) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(cons(X1,X2)) -> mark#(X1) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(cons(X1,X2)) -> cons#(mark(X1),X2) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(s(X)) -> mark#(X) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(s(X)) -> s#(mark(X)) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(s(X)) -> active#(s(mark(X))) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(first(X1,X2)) -> mark#(X2) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(first(X1,X2)) -> mark#(X1) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(0()) -> active#(0()) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(nil()) -> active#(nil()) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(sel(X1,X2)) -> mark#(X2) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(sel(X1,X2)) -> mark#(X1) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) active#(sel(0(),cons(X,Z))) -> mark#(X) -> mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) active#(sel(s(X),cons(Y,Z))) -> sel#(X,Z) -> sel#(mark(X1),X2) -> sel#(X1,X2) active#(sel(s(X),cons(Y,Z))) -> sel#(X,Z) -> sel#(X1,mark(X2)) -> sel#(X1,X2) active#(sel(s(X),cons(Y,Z))) -> sel#(X,Z) -> sel#(active(X1),X2) -> sel#(X1,X2) active#(sel(s(X),cons(Y,Z))) -> sel#(X,Z) -> sel#(X1,active(X2)) -> sel#(X1,X2) active#(sel(s(X),cons(Y,Z))) -> mark#(sel(X,Z)) -> mark#(sel(X1,X2)) -> mark#(X2) active#(sel(s(X),cons(Y,Z))) -> mark#(sel(X,Z)) -> mark#(sel(X1,X2)) -> mark#(X1) active#(sel(s(X),cons(Y,Z))) -> mark#(sel(X,Z)) -> mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) active#(sel(s(X),cons(Y,Z))) -> mark#(sel(X,Z)) -> mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) active#(first(0(),Z)) -> mark#(nil()) -> mark#(nil()) -> active#(nil()) active#(first(s(X),cons(Y,Z))) -> first#(X,Z) -> first#(mark(X1),X2) -> first#(X1,X2) active#(first(s(X),cons(Y,Z))) -> first#(X,Z) -> first#(X1,mark(X2)) -> first#(X1,X2) active#(first(s(X),cons(Y,Z))) -> first#(X,Z) -> first#(active(X1),X2) -> first#(X1,X2) active#(first(s(X),cons(Y,Z))) -> first#(X,Z) -> first#(X1,active(X2)) -> first#(X1,X2) active#(first(s(X),cons(Y,Z))) -> mark#(cons(Y,first(X,Z))) -> mark#(cons(X1,X2)) -> mark#(X1) active#(first(s(X),cons(Y,Z))) -> mark#(cons(Y,first(X,Z))) -> mark#(cons(X1,X2)) -> cons#(mark(X1),X2) active#(first(s(X),cons(Y,Z))) -> mark#(cons(Y,first(X,Z))) -> mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) active#(first(s(X),cons(Y,Z))) -> cons#(Y,first(X,Z)) -> cons#(mark(X1),X2) -> cons#(X1,X2) active#(first(s(X),cons(Y,Z))) -> cons#(Y,first(X,Z)) -> cons#(active(X1),X2) -> cons#(X1,X2) active#(from(X)) -> mark#(cons(X,from(s(X)))) -> mark#(cons(X1,X2)) -> mark#(X1) active#(from(X)) -> mark#(cons(X,from(s(X)))) -> mark#(cons(X1,X2)) -> cons#(mark(X1),X2) active#(from(X)) -> mark#(cons(X,from(s(X)))) -> mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) active#(from(X)) -> cons#(X,from(s(X))) -> cons#(mark(X1),X2) -> cons#(X1,X2) active#(from(X)) -> cons#(X,from(s(X))) -> cons#(active(X1),X2) -> cons#(X1,X2) active#(from(X)) -> s#(X) -> s#(mark(X)) -> s#(X) active#(from(X)) -> s#(X) -> s#(active(X)) -> s#(X) Restore Modifier: DPs: active#(from(X)) -> s#(X) active#(from(X)) -> from#(s(X)) active#(from(X)) -> cons#(X,from(s(X))) active#(from(X)) -> mark#(cons(X,from(s(X)))) active#(first(0(),Z)) -> mark#(nil()) active#(first(s(X),cons(Y,Z))) -> first#(X,Z) active#(first(s(X),cons(Y,Z))) -> cons#(Y,first(X,Z)) active#(first(s(X),cons(Y,Z))) -> mark#(cons(Y,first(X,Z))) active#(sel(0(),cons(X,Z))) -> mark#(X) active#(sel(s(X),cons(Y,Z))) -> sel#(X,Z) active#(sel(s(X),cons(Y,Z))) -> mark#(sel(X,Z)) mark#(from(X)) -> mark#(X) mark#(from(X)) -> from#(mark(X)) mark#(from(X)) -> active#(from(mark(X))) mark#(cons(X1,X2)) -> mark#(X1) mark#(cons(X1,X2)) -> cons#(mark(X1),X2) mark#(cons(X1,X2)) -> active#(cons(mark(X1),X2)) mark#(s(X)) -> mark#(X) mark#(s(X)) -> s#(mark(X)) mark#(s(X)) -> active#(s(mark(X))) mark#(first(X1,X2)) -> mark#(X2) mark#(first(X1,X2)) -> mark#(X1) mark#(first(X1,X2)) -> first#(mark(X1),mark(X2)) mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) mark#(0()) -> active#(0()) mark#(nil()) -> active#(nil()) mark#(sel(X1,X2)) -> mark#(X2) mark#(sel(X1,X2)) -> mark#(X1) mark#(sel(X1,X2)) -> sel#(mark(X1),mark(X2)) mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) from#(mark(X)) -> from#(X) from#(active(X)) -> from#(X) 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) s#(mark(X)) -> s#(X) s#(active(X)) -> s#(X) first#(mark(X1),X2) -> first#(X1,X2) first#(X1,mark(X2)) -> first#(X1,X2) first#(active(X1),X2) -> first#(X1,X2) first#(X1,active(X2)) -> first#(X1,X2) sel#(mark(X1),X2) -> sel#(X1,X2) sel#(X1,mark(X2)) -> sel#(X1,X2) sel#(active(X1),X2) -> sel#(X1,X2) sel#(X1,active(X2)) -> sel#(X1,X2) TRS: active(from(X)) -> mark(cons(X,from(s(X)))) active(first(0(),Z)) -> mark(nil()) active(first(s(X),cons(Y,Z))) -> mark(cons(Y,first(X,Z))) active(sel(0(),cons(X,Z))) -> mark(X) active(sel(s(X),cons(Y,Z))) -> mark(sel(X,Z)) mark(from(X)) -> active(from(mark(X))) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(s(X)) -> active(s(mark(X))) mark(first(X1,X2)) -> active(first(mark(X1),mark(X2))) mark(0()) -> active(0()) mark(nil()) -> active(nil()) mark(sel(X1,X2)) -> active(sel(mark(X1),mark(X2))) from(mark(X)) -> from(X) from(active(X)) -> from(X) 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) s(mark(X)) -> s(X) s(active(X)) -> s(X) first(mark(X1),X2) -> first(X1,X2) first(X1,mark(X2)) -> first(X1,X2) first(active(X1),X2) -> first(X1,X2) first(X1,active(X2)) -> first(X1,X2) sel(mark(X1),X2) -> sel(X1,X2) sel(X1,mark(X2)) -> sel(X1,X2) sel(active(X1),X2) -> sel(X1,X2) sel(X1,active(X2)) -> sel(X1,X2) SCC Processor: #sccs: 6 #rules: 30 #arcs: 260/2116 DPs: mark#(sel(X1,X2)) -> mark#(X2) mark#(sel(X1,X2)) -> active#(sel(mark(X1),mark(X2))) active#(sel(s(X),cons(Y,Z))) -> mark#(sel(X,Z)) mark#(sel(X1,X2)) -> mark#(X1) mark#(first(X1,X2)) -> active#(first(mark(X1),mark(X2))) active#(first(s(X),cons(Y,Z))) -> mark#(cons(Y,first(X,Z))) mark#(cons(X1,X2)) -> mark#(X1) mark#(first(X1,X2)) -> mark#(X1) mark#(first(X1,X2)) -> mark#(X2) mark#(s(X)) -> mark#(X) mark#(from(X)) -> active#(from(mark(X))) active#(from(X)) -> mark#(cons(X,from(s(X)))) mark#(from(X)) -> mark#(X) active#(sel(0(),cons(X,Z))) -> mark#(X) TRS: active(from(X)) -> mark(cons(X,from(s(X)))) active(first(0(),Z)) -> mark(nil()) active(first(s(X),cons(Y,Z))) -> mark(cons(Y,first(X,Z))) active(sel(0(),cons(X,Z))) -> mark(X) active(sel(s(X),cons(Y,Z))) -> mark(sel(X,Z)) mark(from(X)) -> active(from(mark(X))) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(s(X)) -> active(s(mark(X))) mark(first(X1,X2)) -> active(first(mark(X1),mark(X2))) mark(0()) -> active(0()) mark(nil()) -> active(nil()) mark(sel(X1,X2)) -> active(sel(mark(X1),mark(X2))) from(mark(X)) -> from(X) from(active(X)) -> from(X) 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) s(mark(X)) -> s(X) s(active(X)) -> s(X) first(mark(X1),X2) -> first(X1,X2) first(X1,mark(X2)) -> first(X1,X2) first(active(X1),X2) -> first(X1,X2) first(X1,active(X2)) -> first(X1,X2) sel(mark(X1),X2) -> sel(X1,X2) sel(X1,mark(X2)) -> sel(X1,X2) sel(active(X1),X2) -> sel(X1,X2) sel(X1,active(X2)) -> sel(X1,X2) Open DPs: from#(active(X)) -> from#(X) from#(mark(X)) -> from#(X) TRS: active(from(X)) -> mark(cons(X,from(s(X)))) active(first(0(),Z)) -> mark(nil()) active(first(s(X),cons(Y,Z))) -> mark(cons(Y,first(X,Z))) active(sel(0(),cons(X,Z))) -> mark(X) active(sel(s(X),cons(Y,Z))) -> mark(sel(X,Z)) mark(from(X)) -> active(from(mark(X))) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(s(X)) -> active(s(mark(X))) mark(first(X1,X2)) -> active(first(mark(X1),mark(X2))) mark(0()) -> active(0()) mark(nil()) -> active(nil()) mark(sel(X1,X2)) -> active(sel(mark(X1),mark(X2))) from(mark(X)) -> from(X) from(active(X)) -> from(X) 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) s(mark(X)) -> s(X) s(active(X)) -> s(X) first(mark(X1),X2) -> first(X1,X2) first(X1,mark(X2)) -> first(X1,X2) first(active(X1),X2) -> first(X1,X2) first(X1,active(X2)) -> first(X1,X2) sel(mark(X1),X2) -> sel(X1,X2) sel(X1,mark(X2)) -> sel(X1,X2) sel(active(X1),X2) -> sel(X1,X2) sel(X1,active(X2)) -> sel(X1,X2) Open DPs: s#(active(X)) -> s#(X) s#(mark(X)) -> s#(X) TRS: active(from(X)) -> mark(cons(X,from(s(X)))) active(first(0(),Z)) -> mark(nil()) active(first(s(X),cons(Y,Z))) -> mark(cons(Y,first(X,Z))) active(sel(0(),cons(X,Z))) -> mark(X) active(sel(s(X),cons(Y,Z))) -> mark(sel(X,Z)) mark(from(X)) -> active(from(mark(X))) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(s(X)) -> active(s(mark(X))) mark(first(X1,X2)) -> active(first(mark(X1),mark(X2))) mark(0()) -> active(0()) mark(nil()) -> active(nil()) mark(sel(X1,X2)) -> active(sel(mark(X1),mark(X2))) from(mark(X)) -> from(X) from(active(X)) -> from(X) 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) s(mark(X)) -> s(X) s(active(X)) -> s(X) first(mark(X1),X2) -> first(X1,X2) first(X1,mark(X2)) -> first(X1,X2) first(active(X1),X2) -> first(X1,X2) first(X1,active(X2)) -> first(X1,X2) sel(mark(X1),X2) -> sel(X1,X2) sel(X1,mark(X2)) -> sel(X1,X2) sel(active(X1),X2) -> sel(X1,X2) sel(X1,active(X2)) -> sel(X1,X2) Open DPs: cons#(X1,active(X2)) -> cons#(X1,X2) cons#(active(X1),X2) -> cons#(X1,X2) cons#(X1,mark(X2)) -> cons#(X1,X2) cons#(mark(X1),X2) -> cons#(X1,X2) TRS: active(from(X)) -> mark(cons(X,from(s(X)))) active(first(0(),Z)) -> mark(nil()) active(first(s(X),cons(Y,Z))) -> mark(cons(Y,first(X,Z))) active(sel(0(),cons(X,Z))) -> mark(X) active(sel(s(X),cons(Y,Z))) -> mark(sel(X,Z)) mark(from(X)) -> active(from(mark(X))) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(s(X)) -> active(s(mark(X))) mark(first(X1,X2)) -> active(first(mark(X1),mark(X2))) mark(0()) -> active(0()) mark(nil()) -> active(nil()) mark(sel(X1,X2)) -> active(sel(mark(X1),mark(X2))) from(mark(X)) -> from(X) from(active(X)) -> from(X) 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) s(mark(X)) -> s(X) s(active(X)) -> s(X) first(mark(X1),X2) -> first(X1,X2) first(X1,mark(X2)) -> first(X1,X2) first(active(X1),X2) -> first(X1,X2) first(X1,active(X2)) -> first(X1,X2) sel(mark(X1),X2) -> sel(X1,X2) sel(X1,mark(X2)) -> sel(X1,X2) sel(active(X1),X2) -> sel(X1,X2) sel(X1,active(X2)) -> sel(X1,X2) Open DPs: first#(mark(X1),X2) -> first#(X1,X2) first#(X1,active(X2)) -> first#(X1,X2) first#(active(X1),X2) -> first#(X1,X2) first#(X1,mark(X2)) -> first#(X1,X2) TRS: active(from(X)) -> mark(cons(X,from(s(X)))) active(first(0(),Z)) -> mark(nil()) active(first(s(X),cons(Y,Z))) -> mark(cons(Y,first(X,Z))) active(sel(0(),cons(X,Z))) -> mark(X) active(sel(s(X),cons(Y,Z))) -> mark(sel(X,Z)) mark(from(X)) -> active(from(mark(X))) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(s(X)) -> active(s(mark(X))) mark(first(X1,X2)) -> active(first(mark(X1),mark(X2))) mark(0()) -> active(0()) mark(nil()) -> active(nil()) mark(sel(X1,X2)) -> active(sel(mark(X1),mark(X2))) from(mark(X)) -> from(X) from(active(X)) -> from(X) 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) s(mark(X)) -> s(X) s(active(X)) -> s(X) first(mark(X1),X2) -> first(X1,X2) first(X1,mark(X2)) -> first(X1,X2) first(active(X1),X2) -> first(X1,X2) first(X1,active(X2)) -> first(X1,X2) sel(mark(X1),X2) -> sel(X1,X2) sel(X1,mark(X2)) -> sel(X1,X2) sel(active(X1),X2) -> sel(X1,X2) sel(X1,active(X2)) -> sel(X1,X2) Open DPs: sel#(mark(X1),X2) -> sel#(X1,X2) sel#(X1,active(X2)) -> sel#(X1,X2) sel#(active(X1),X2) -> sel#(X1,X2) sel#(X1,mark(X2)) -> sel#(X1,X2) TRS: active(from(X)) -> mark(cons(X,from(s(X)))) active(first(0(),Z)) -> mark(nil()) active(first(s(X),cons(Y,Z))) -> mark(cons(Y,first(X,Z))) active(sel(0(),cons(X,Z))) -> mark(X) active(sel(s(X),cons(Y,Z))) -> mark(sel(X,Z)) mark(from(X)) -> active(from(mark(X))) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(s(X)) -> active(s(mark(X))) mark(first(X1,X2)) -> active(first(mark(X1),mark(X2))) mark(0()) -> active(0()) mark(nil()) -> active(nil()) mark(sel(X1,X2)) -> active(sel(mark(X1),mark(X2))) from(mark(X)) -> from(X) from(active(X)) -> from(X) 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) s(mark(X)) -> s(X) s(active(X)) -> s(X) first(mark(X1),X2) -> first(X1,X2) first(X1,mark(X2)) -> first(X1,X2) first(active(X1),X2) -> first(X1,X2) first(X1,active(X2)) -> first(X1,X2) sel(mark(X1),X2) -> sel(X1,X2) sel(X1,mark(X2)) -> sel(X1,X2) sel(active(X1),X2) -> sel(X1,X2) sel(X1,active(X2)) -> sel(X1,X2) Open