/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Problem 1: (VAR N X X1 X2 XS Y YS) (RULES active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ) Problem 1: Dependency Pairs Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> CONS(s(X),incr(XS)) ACTIVE(incr(cons(X,XS))) -> INCR(XS) ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(incr(cons(X,XS))) -> S(X) ACTIVE(repItems(cons(X,XS))) -> CONS(X,cons(X,repItems(XS))) ACTIVE(repItems(cons(X,XS))) -> CONS(X,repItems(XS)) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(repItems(cons(X,XS))) -> REPITEMS(XS) ACTIVE(repItems(nil)) -> MARK(nil) ACTIVE(tail(cons(X,XS))) -> MARK(XS) ACTIVE(take(s(N),cons(X,XS))) -> CONS(X,take(N,XS)) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(take(s(N),cons(X,XS))) -> TAKE(N,XS) ACTIVE(take(0,XS)) -> MARK(nil) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> CONS(pair(X,Y),zip(XS,YS)) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> PAIR(X,Y) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> ZIP(XS,YS) ACTIVE(zip(nil,XS)) -> MARK(nil) ACTIVE(zip(X,nil)) -> MARK(nil) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) CONS(active(X1),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) INCR(active(X)) -> INCR(X) INCR(mark(X)) -> INCR(X) MARK(cons(X1,X2)) -> ACTIVE(cons(mark(X1),X2)) MARK(cons(X1,X2)) -> CONS(mark(X1),X2) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> INCR(mark(X)) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> ACTIVE(pair(mark(X1),mark(X2))) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(pair(X1,X2)) -> PAIR(mark(X1),mark(X2)) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(repItems(X)) -> REPITEMS(mark(X)) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(s(X)) -> S(mark(X)) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(tail(X)) -> TAIL(mark(X)) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(take(X1,X2)) -> TAKE(mark(X1),mark(X2)) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ZIP(mark(X1),mark(X2)) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) PAIR(active(X1),X2) -> PAIR(X1,X2) PAIR(mark(X1),X2) -> PAIR(X1,X2) PAIR(X1,active(X2)) -> PAIR(X1,X2) PAIR(X1,mark(X2)) -> PAIR(X1,X2) REPITEMS(active(X)) -> REPITEMS(X) REPITEMS(mark(X)) -> REPITEMS(X) S(active(X)) -> S(X) S(mark(X)) -> S(X) TAIL(active(X)) -> TAIL(X) TAIL(mark(X)) -> TAIL(X) TAKE(active(X1),X2) -> TAKE(X1,X2) TAKE(mark(X1),X2) -> TAKE(X1,X2) TAKE(X1,active(X2)) -> TAKE(X1,X2) TAKE(X1,mark(X2)) -> TAKE(X1,X2) ZIP(active(X1),X2) -> ZIP(X1,X2) ZIP(mark(X1),X2) -> ZIP(X1,X2) ZIP(X1,active(X2)) -> ZIP(X1,X2) ZIP(X1,mark(X2)) -> ZIP(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> CONS(s(X),incr(XS)) ACTIVE(incr(cons(X,XS))) -> INCR(XS) ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(incr(cons(X,XS))) -> S(X) ACTIVE(repItems(cons(X,XS))) -> CONS(X,cons(X,repItems(XS))) ACTIVE(repItems(cons(X,XS))) -> CONS(X,repItems(XS)) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(repItems(cons(X,XS))) -> REPITEMS(XS) ACTIVE(repItems(nil)) -> MARK(nil) ACTIVE(tail(cons(X,XS))) -> MARK(XS) ACTIVE(take(s(N),cons(X,XS))) -> CONS(X,take(N,XS)) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(take(s(N),cons(X,XS))) -> TAKE(N,XS) ACTIVE(take(0,XS)) -> MARK(nil) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> CONS(pair(X,Y),zip(XS,YS)) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> PAIR(X,Y) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> ZIP(XS,YS) ACTIVE(zip(nil,XS)) -> MARK(nil) ACTIVE(zip(X,nil)) -> MARK(nil) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) CONS(active(X1),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) INCR(active(X)) -> INCR(X) INCR(mark(X)) -> INCR(X) MARK(cons(X1,X2)) -> ACTIVE(cons(mark(X1),X2)) MARK(cons(X1,X2)) -> CONS(mark(X1),X2) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> INCR(mark(X)) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> ACTIVE(pair(mark(X1),mark(X2))) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(pair(X1,X2)) -> PAIR(mark(X1),mark(X2)) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(repItems(X)) -> REPITEMS(mark(X)) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(s(X)) -> S(mark(X)) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(tail(X)) -> TAIL(mark(X)) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(take(X1,X2)) -> TAKE(mark(X1),mark(X2)) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ZIP(mark(X1),mark(X2)) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) PAIR(active(X1),X2) -> PAIR(X1,X2) PAIR(mark(X1),X2) -> PAIR(X1,X2) PAIR(X1,active(X2)) -> PAIR(X1,X2) PAIR(X1,mark(X2)) -> PAIR(X1,X2) REPITEMS(active(X)) -> REPITEMS(X) REPITEMS(mark(X)) -> REPITEMS(X) S(active(X)) -> S(X) S(mark(X)) -> S(X) TAIL(active(X)) -> TAIL(X) TAIL(mark(X)) -> TAIL(X) TAKE(active(X1),X2) -> TAKE(X1,X2) TAKE(mark(X1),X2) -> TAKE(X1,X2) TAKE(X1,active(X2)) -> TAKE(X1,X2) TAKE(X1,mark(X2)) -> TAKE(X1,X2) ZIP(active(X1),X2) -> ZIP(X1,X2) ZIP(mark(X1),X2) -> ZIP(X1,X2) ZIP(X1,active(X2)) -> ZIP(X1,X2) ZIP(X1,mark(X2)) -> ZIP(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ZIP(active(X1),X2) -> ZIP(X1,X2) ZIP(mark(X1),X2) -> ZIP(X1,X2) ZIP(X1,active(X2)) -> ZIP(X1,X2) ZIP(X1,mark(X2)) -> ZIP(X1,X2) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->->Cycle: ->->-> Pairs: TAKE(active(X1),X2) -> TAKE(X1,X2) TAKE(mark(X1),X2) -> TAKE(X1,X2) TAKE(X1,active(X2)) -> TAKE(X1,X2) TAKE(X1,mark(X2)) -> TAKE(X1,X2) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->->Cycle: ->->-> Pairs: TAIL(active(X)) -> TAIL(X) TAIL(mark(X)) -> TAIL(X) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->->Cycle: ->->-> Pairs: S(active(X)) -> S(X) S(mark(X)) -> S(X) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->->Cycle: ->->-> Pairs: REPITEMS(active(X)) -> REPITEMS(X) REPITEMS(mark(X)) -> REPITEMS(X) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->->Cycle: ->->-> Pairs: PAIR(active(X1),X2) -> PAIR(X1,X2) PAIR(mark(X1),X2) -> PAIR(X1,X2) PAIR(X1,active(X2)) -> PAIR(X1,X2) PAIR(X1,mark(X2)) -> PAIR(X1,X2) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->->Cycle: ->->-> Pairs: INCR(active(X)) -> INCR(X) INCR(mark(X)) -> INCR(X) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->->Cycle: ->->-> Pairs: CONS(active(X1),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) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(tail(cons(X,XS))) -> MARK(XS) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> ACTIVE(cons(mark(X1),X2)) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> ACTIVE(pair(mark(X1),mark(X2))) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) The problem is decomposed in 9 subproblems. Problem 1.1: Subterm Processor: -> Pairs: ZIP(active(X1),X2) -> ZIP(X1,X2) ZIP(mark(X1),X2) -> ZIP(X1,X2) ZIP(X1,active(X2)) -> ZIP(X1,X2) ZIP(X1,mark(X2)) -> ZIP(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(ZIP) = 1 Problem 1.1: SCC Processor: -> Pairs: ZIP(X1,active(X2)) -> ZIP(X1,X2) ZIP(X1,mark(X2)) -> ZIP(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ZIP(X1,active(X2)) -> ZIP(X1,X2) ZIP(X1,mark(X2)) -> ZIP(X1,X2) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.1: Subterm Processor: -> Pairs: ZIP(X1,active(X2)) -> ZIP(X1,X2) ZIP(X1,mark(X2)) -> ZIP(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(ZIP) = 2 Problem 1.1: SCC Processor: -> Pairs: Empty -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.2: Subterm Processor: -> Pairs: TAKE(active(X1),X2) -> TAKE(X1,X2) TAKE(mark(X1),X2) -> TAKE(X1,X2) TAKE(X1,active(X2)) -> TAKE(X1,X2) TAKE(X1,mark(X2)) -> TAKE(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(TAKE) = 1 Problem 1.2: SCC Processor: -> Pairs: TAKE(X1,active(X2)) -> TAKE(X1,X2) TAKE(X1,mark(X2)) -> TAKE(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: TAKE(X1,active(X2)) -> TAKE(X1,X2) TAKE(X1,mark(X2)) -> TAKE(X1,X2) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.2: Subterm Processor: -> Pairs: TAKE(X1,active(X2)) -> TAKE(X1,X2) TAKE(X1,mark(X2)) -> TAKE(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(TAKE) = 2 Problem 1.2: SCC Processor: -> Pairs: Empty -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.3: Subterm Processor: -> Pairs: TAIL(active(X)) -> TAIL(X) TAIL(mark(X)) -> TAIL(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(TAIL) = 1 Problem 1.3: SCC Processor: -> Pairs: Empty -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.4: Subterm Processor: -> Pairs: S(active(X)) -> S(X) S(mark(X)) -> S(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(S) = 1 Problem 1.4: SCC Processor: -> Pairs: Empty -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.5: Subterm Processor: -> Pairs: REPITEMS(active(X)) -> REPITEMS(X) REPITEMS(mark(X)) -> REPITEMS(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(REPITEMS) = 1 Problem 1.5: SCC Processor: -> Pairs: Empty -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.6: Subterm Processor: -> Pairs: PAIR(active(X1),X2) -> PAIR(X1,X2) PAIR(mark(X1),X2) -> PAIR(X1,X2) PAIR(X1,active(X2)) -> PAIR(X1,X2) PAIR(X1,mark(X2)) -> PAIR(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(PAIR) = 1 Problem 1.6: SCC Processor: -> Pairs: PAIR(X1,active(X2)) -> PAIR(X1,X2) PAIR(X1,mark(X2)) -> PAIR(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: PAIR(X1,active(X2)) -> PAIR(X1,X2) PAIR(X1,mark(X2)) -> PAIR(X1,X2) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.6: Subterm Processor: -> Pairs: PAIR(X1,active(X2)) -> PAIR(X1,X2) PAIR(X1,mark(X2)) -> PAIR(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(PAIR) = 2 Problem 1.6: SCC Processor: -> Pairs: Empty -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.7: Subterm Processor: -> Pairs: INCR(active(X)) -> INCR(X) INCR(mark(X)) -> INCR(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(INCR) = 1 Problem 1.7: SCC Processor: -> Pairs: Empty -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.8: Subterm Processor: -> Pairs: CONS(active(X1),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) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(CONS) = 1 Problem 1.8: SCC Processor: -> Pairs: CONS(X1,active(X2)) -> CONS(X1,X2) CONS(X1,mark(X2)) -> CONS(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: CONS(X1,active(X2)) -> CONS(X1,X2) CONS(X1,mark(X2)) -> CONS(X1,X2) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.8: Subterm Processor: -> Pairs: CONS(X1,active(X2)) -> CONS(X1,X2) CONS(X1,mark(X2)) -> CONS(X1,X2) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(CONS) = 2 Problem 1.8: SCC Processor: -> Pairs: Empty -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(tail(cons(X,XS))) -> MARK(XS) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> ACTIVE(cons(mark(X1),X2)) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> ACTIVE(pair(mark(X1),mark(X2))) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = 2.X1 + X2 [incr](X) = 2.X [mark](X) = X [pair](X1,X2) = 2.X1 + X2 [repItems](X) = 2.X + 2 [s](X) = X [tail](X) = 2.X + 2 [take](X1,X2) = 2.X1 + 2.X2 + 2 [zip](X1,X2) = 2.X1 + X2 + 2 [0] = 0 [nil] = 2 [oddNs] = 0 [pairNs] = 0 [ACTIVE](X) = 2.X [MARK](X) = 2.X Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> ACTIVE(cons(mark(X1),X2)) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> ACTIVE(pair(mark(X1),mark(X2))) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> ACTIVE(cons(mark(X1),X2)) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> ACTIVE(pair(mark(X1),mark(X2))) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> ACTIVE(cons(mark(X1),X2)) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> ACTIVE(pair(mark(X1),mark(X2))) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = 2.X [cons](X1,X2) = 0 [incr](X) = 1 [mark](X) = 2 [pair](X1,X2) = 1 [repItems](X) = 1 [s](X) = 0 [tail](X) = 1 [take](X1,X2) = 1 [zip](X1,X2) = 1 [0] = 0 [nil] = 1 [oddNs] = 1 [pairNs] = 1 [ACTIVE](X) = 2.X [MARK](X) = 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> ACTIVE(pair(mark(X1),mark(X2))) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> ACTIVE(pair(mark(X1),mark(X2))) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> ACTIVE(pair(mark(X1),mark(X2))) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = 2.X [cons](X1,X2) = 1 [incr](X) = 1 [mark](X) = 2 [pair](X1,X2) = 0 [repItems](X) = 1 [s](X) = 0 [tail](X) = 1 [take](X1,X2) = 1 [zip](X1,X2) = 1 [0] = 0 [nil] = 0 [oddNs] = 1 [pairNs] = 1 [ACTIVE](X) = 2.X [MARK](X) = 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(repItems(X)) -> MARK(X) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = X1 + X2 [incr](X) = 2.X [mark](X) = X [pair](X1,X2) = X1 + 2.X2 [repItems](X) = 2.X + 2 [s](X) = 2.X [tail](X) = X + 2 [take](X1,X2) = 2.X1 + X2 [zip](X1,X2) = X1 + 2.X2 + 2 [0] = 0 [nil] = 0 [oddNs] = 0 [pairNs] = 0 [ACTIVE](X) = 2.X + 2 [MARK](X) = 2.X + 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> ACTIVE(s(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = 2.X [cons](X1,X2) = 0 [incr](X) = 1 [mark](X) = 2 [pair](X1,X2) = 0 [repItems](X) = 1 [s](X) = 0 [tail](X) = 1 [take](X1,X2) = 1 [zip](X1,X2) = 1 [0] = 0 [nil] = 0 [oddNs] = 1 [pairNs] = 1 [ACTIVE](X) = 2.X [MARK](X) = 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> ACTIVE(tail(mark(X))) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = 2 [cons](X1,X2) = 0 [incr](X) = 2 [mark](X) = 2 [pair](X1,X2) = 2 [repItems](X) = 2 [s](X) = 2 [tail](X) = 1 [take](X1,X2) = 2 [zip](X1,X2) = 2 [0] = 2 [nil] = 2 [oddNs] = 2 [pairNs] = 2 [ACTIVE](X) = X [MARK](X) = 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(tail(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = 2.X1 + X2 [incr](X) = X [mark](X) = X [pair](X1,X2) = 2.X1 + 2.X2 [repItems](X) = 2.X + 1 [s](X) = X [tail](X) = 2.X + 2 [take](X1,X2) = 2.X1 + 2.X2 + 2 [zip](X1,X2) = 2.X1 + 2.X2 [0] = 0 [nil] = 2 [oddNs] = 2 [pairNs] = 2 [ACTIVE](X) = 2.X [MARK](X) = 2.X Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X1) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = 2.X1 + X2 [incr](X) = X [mark](X) = X [pair](X1,X2) = 2.X1 + X2 [repItems](X) = 2.X + 2 [s](X) = X [tail](X) = 2.X + 1 [take](X1,X2) = 2.X1 + 2.X2 + 2 [zip](X1,X2) = 2.X1 + 2.X2 + 2 [0] = 0 [nil] = 2 [oddNs] = 2 [pairNs] = 2 [ACTIVE](X) = 2.X + 2 [MARK](X) = 2.X + 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(take(X1,X2)) -> MARK(X2) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = 2.X1 + X2 [incr](X) = 2.X [mark](X) = X [pair](X1,X2) = X1 + 2.X2 [repItems](X) = 2.X + 2 [s](X) = 2.X [tail](X) = X + 2 [take](X1,X2) = X1 + 2.X2 + 2 [zip](X1,X2) = 2.X1 + 2.X2 + 2 [0] = 0 [nil] = 2 [oddNs] = 0 [pairNs] = 0 [ACTIVE](X) = 2.X + 2 [MARK](X) = 2.X + 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X1) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = 2.X1 + X2 [incr](X) = 2.X [mark](X) = X [pair](X1,X2) = 2.X1 + 2.X2 [repItems](X) = 2.X + 2 [s](X) = 2.X [tail](X) = X + 1 [take](X1,X2) = 2.X2 + 1 [zip](X1,X2) = 2.X1 + 2.X2 + 2 [0] = 0 [nil] = 0 [oddNs] = 0 [pairNs] = 0 [ACTIVE](X) = 2.X + 1 [MARK](X) = 2.X + 1 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> MARK(X2) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = 2.X1 + X2 [incr](X) = X [mark](X) = X [pair](X1,X2) = 2.X1 + 2.X2 [repItems](X) = 2.X + 1 [s](X) = X [tail](X) = 2.X + 2 [take](X1,X2) = 2.X2 + 2 [zip](X1,X2) = 2.X1 + 2.X2 + 1 [0] = 0 [nil] = 2 [oddNs] = 2 [pairNs] = 2 [ACTIVE](X) = 2.X + 1 [MARK](X) = 2.X + 1 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(repItems(cons(X,XS))) -> MARK(cons(X,cons(X,repItems(XS)))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: All rationals ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = 2.X1 + 1/2.X2 + 1/2 [incr](X) = X [mark](X) = X [pair](X1,X2) = X1 + 2.X2 [repItems](X) = 2.X + 2 [s](X) = X [tail](X) = 2.X [take](X1,X2) = X2 + 2 [zip](X1,X2) = 2.X1 + 2.X2 + 1/2 [0] = 0 [nil] = 1/2 [oddNs] = 1 [pairNs] = 1 [ACTIVE](X) = 1/2.X [MARK](X) = 1/2.X Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(repItems(X)) -> ACTIVE(repItems(mark(X))) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = X2 [incr](X) = 2 [mark](X) = X [pair](X1,X2) = 1 [repItems](X) = 1 [s](X) = 2.X + 1 [tail](X) = 2.X + 1 [take](X1,X2) = 2 [zip](X1,X2) = 2 [0] = 1 [nil] = 1 [oddNs] = 2 [pairNs] = 2 [ACTIVE](X) = X [MARK](X) = 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(take(s(N),cons(X,XS))) -> MARK(cons(X,take(N,XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: All rationals ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = 2.X1 + 1/2.X2 [incr](X) = X [mark](X) = X [pair](X1,X2) = X1 + X2 [repItems](X) = 2.X + 2 [s](X) = X [tail](X) = 2.X + 1/2 [take](X1,X2) = X2 + 2 [zip](X1,X2) = X1 + X2 [0] = 0 [nil] = 1 [oddNs] = 1/2 [pairNs] = 1/2 [ACTIVE](X) = X + 1/2 [MARK](X) = X + 1/2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(take(X1,X2)) -> ACTIVE(take(mark(X1),mark(X2))) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = X2 [incr](X) = 2 [mark](X) = X [pair](X1,X2) = 2.X1 + 1 [repItems](X) = 2 [s](X) = 2.X [tail](X) = 2.X + 1 [take](X1,X2) = 0 [zip](X1,X2) = 2 [0] = 1 [nil] = 0 [oddNs] = 2 [pairNs] = 2 [ACTIVE](X) = X [MARK](X) = 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(zip(cons(X,XS),cons(Y,YS))) -> MARK(cons(pair(X,Y),zip(XS,YS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: All rationals ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = X1 + 1/2.X2 [incr](X) = X [mark](X) = X [pair](X1,X2) = 2.X1 + X2 [repItems](X) = 2.X [s](X) = X [tail](X) = 2.X + 2 [take](X1,X2) = X2 + 1 [zip](X1,X2) = 2.X1 + 2.X2 + 1/2 [0] = 1/2 [nil] = 1 [oddNs] = 2 [pairNs] = 2 [ACTIVE](X) = 1/2.X + 2 [MARK](X) = 1/2.X + 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(zip(X1,X2)) -> ACTIVE(zip(mark(X1),mark(X2))) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = 2 [cons](X1,X2) = 0 [incr](X) = 2 [mark](X) = 2 [pair](X1,X2) = 2 [repItems](X) = 1 [s](X) = 0 [tail](X) = 2 [take](X1,X2) = 2 [zip](X1,X2) = 0 [0] = 2 [nil] = 1 [oddNs] = 2 [pairNs] = 2 [ACTIVE](X) = X [MARK](X) = 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(oddNs) -> MARK(incr(pairNs)) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: All rationals ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = X1 + 1/2.X2 [incr](X) = X [mark](X) = X [pair](X1,X2) = X1 + X2 [repItems](X) = 2.X + 1 [s](X) = X [tail](X) = 2.X + 1/2 [take](X1,X2) = 1/2.X1 + 2.X2 + 2 [zip](X1,X2) = 2.X1 + 2.X2 [0] = 0 [nil] = 2 [oddNs] = 1 [pairNs] = 1/2 [ACTIVE](X) = X + 1/2 [MARK](X) = X + 1/2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(oddNs) -> ACTIVE(oddNs) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(pairNs) -> ACTIVE(pairNs) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) ACTIVE(pairNs) -> MARK(cons(0,incr(oddNs))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: All rationals ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = X1 + 1/2.X2 [incr](X) = X [mark](X) = X [pair](X1,X2) = X1 + X2 + 1/2 [repItems](X) = 2.X + 1/2 [s](X) = X [tail](X) = 2.X + 2 [take](X1,X2) = X2 + 2 [zip](X1,X2) = 2.X1 + X2 + 2 [0] = 0 [nil] = 2 [oddNs] = 1/2 [pairNs] = 1/2 [ACTIVE](X) = 2.X [MARK](X) = 2.X Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) MARK(pairNs) -> ACTIVE(pairNs) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(cons(X1,X2)) -> MARK(X1) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: All rationals ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = X1 + 1/2.X2 + 1/2 [incr](X) = X [mark](X) = X [pair](X1,X2) = X1 + X2 [repItems](X) = 2.X + 2 [s](X) = X [tail](X) = 2.X + 1/2 [take](X1,X2) = 1/2.X1 + X2 [zip](X1,X2) = X1 + 2.X2 [0] = 0 [nil] = 0 [oddNs] = 1 [pairNs] = 1 [ACTIVE](X) = 2.X + 2 [MARK](X) = 2.X + 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X1) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = X2 [incr](X) = X [mark](X) = X [pair](X1,X2) = 2.X1 + 2.X2 + 2 [repItems](X) = 2.X + 1 [s](X) = 2.X + 2 [tail](X) = 2.X + 2 [take](X1,X2) = 2.X1 + 2.X2 + 2 [zip](X1,X2) = 2.X1 + 2.X2 + 2 [0] = 2 [nil] = 2 [oddNs] = 2 [pairNs] = 2 [ACTIVE](X) = 2.X + 2 [MARK](X) = 2.X + 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(pair(X1,X2)) -> MARK(X2) MARK(s(X)) -> MARK(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = 2.X2 [incr](X) = 2.X [mark](X) = X [pair](X1,X2) = 2.X1 + X2 + 2 [repItems](X) = 0 [s](X) = 2.X [tail](X) = X + 1 [take](X1,X2) = 0 [zip](X1,X2) = 2.X1 [0] = 1 [nil] = 0 [oddNs] = 0 [pairNs] = 0 [ACTIVE](X) = X [MARK](X) = X Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(s(X)) -> MARK(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(s(X)) -> MARK(X) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) MARK(s(X)) -> MARK(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = X [cons](X1,X2) = 2.X2 [incr](X) = 2.X [mark](X) = X [pair](X1,X2) = X1 + X2 + 2 [repItems](X) = 0 [s](X) = 2.X + 2 [tail](X) = 2.X + 1 [take](X1,X2) = 2.X1 + 2.X2 + 1 [zip](X1,X2) = 2.X1 [0] = 2 [nil] = 0 [oddNs] = 0 [pairNs] = 0 [ACTIVE](X) = 2.X + 2 [MARK](X) = 2.X + 2 Problem 1.9: SCC Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Reduction Pair Processor: -> Pairs: ACTIVE(incr(cons(X,XS))) -> MARK(cons(s(X),incr(XS))) MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) -> Usable rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Interpretation type: Linear ->Coefficients: All rationals ->Dimension: 1 ->Bound: 4 ->Interpretation: [active](X) = X [cons](X1,X2) = 1/4.X2 [incr](X) = X + 1/4 [mark](X) = X [pair](X1,X2) = 2/3.X2 + 2 [repItems](X) = 2.X [s](X) = 0 [tail](X) = 4.X + 2 [take](X1,X2) = 4.X2 + 1 [zip](X1,X2) = 1/2.X2 + 4 [0] = 0 [nil] = 2/3 [oddNs] = 2/3 [pairNs] = 1/4 [ACTIVE](X) = 4.X + 4 [MARK](X) = 4.X + 4 Problem 1.9: SCC Processor: -> Pairs: MARK(incr(X)) -> ACTIVE(incr(mark(X))) MARK(incr(X)) -> MARK(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: MARK(incr(X)) -> MARK(X) ->->-> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) Problem 1.9: Subterm Processor: -> Pairs: MARK(incr(X)) -> MARK(X) -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Projection: pi(MARK) = 1 Problem 1.9: SCC Processor: -> Pairs: Empty -> Rules: active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(repItems(cons(X,XS))) -> mark(cons(X,cons(X,repItems(XS)))) active(repItems(nil)) -> mark(nil) active(tail(cons(X,XS))) -> mark(XS) active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS))) active(take(0,XS)) -> mark(nil) active(zip(cons(X,XS),cons(Y,YS))) -> mark(cons(pair(X,Y),zip(XS,YS))) active(zip(nil,XS)) -> mark(nil) active(zip(X,nil)) -> mark(nil) active(oddNs) -> mark(incr(pairNs)) active(pairNs) -> mark(cons(0,incr(oddNs))) cons(active(X1),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) incr(active(X)) -> incr(X) incr(mark(X)) -> incr(X) mark(cons(X1,X2)) -> active(cons(mark(X1),X2)) mark(incr(X)) -> active(incr(mark(X))) mark(pair(X1,X2)) -> active(pair(mark(X1),mark(X2))) mark(repItems(X)) -> active(repItems(mark(X))) mark(s(X)) -> active(s(mark(X))) mark(tail(X)) -> active(tail(mark(X))) mark(take(X1,X2)) -> active(take(mark(X1),mark(X2))) mark(zip(X1,X2)) -> active(zip(mark(X1),mark(X2))) mark(0) -> active(0) mark(nil) -> active(nil) mark(oddNs) -> active(oddNs) mark(pairNs) -> active(pairNs) pair(active(X1),X2) -> pair(X1,X2) pair(mark(X1),X2) -> pair(X1,X2) pair(X1,active(X2)) -> pair(X1,X2) pair(X1,mark(X2)) -> pair(X1,X2) repItems(active(X)) -> repItems(X) repItems(mark(X)) -> repItems(X) s(active(X)) -> s(X) s(mark(X)) -> s(X) tail(active(X)) -> tail(X) tail(mark(X)) -> tail(X) take(active(X1),X2) -> take(X1,X2) take(mark(X1),X2) -> take(X1,X2) take(X1,active(X2)) -> take(X1,X2) take(X1,mark(X2)) -> take(X1,X2) zip(active(X1),X2) -> zip(X1,X2) zip(mark(X1),X2) -> zip(X1,X2) zip(X1,active(X2)) -> zip(X1,X2) zip(X1,mark(X2)) -> zip(X1,X2) ->Strongly Connected Components: There is no strongly connected component The problem is finite.