YES Problem: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(nil()) -> tt() a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(nil()) -> 0() a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) mark(nil()) -> nil() a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Proof: Matrix Interpretation Processor: dim=1 interpretation: [and](x0, x1) = x0 + 4x1, [U11](x0, x1) = 5x0 + 6x1, [isNat](x0) = x0, [isNatList](x0) = 2x0, [nil] = 4, [isNatIList](x0) = 4x0, [a__isNatIList](x0) = 4x0, [a__isNatList](x0) = 2x0, [length](x0) = 4x0, [a__isNat](x0) = x0, [a__and](x0, x1) = x0 + 4x1, [s](x0) = x0, [a__length](x0) = 4x0, [mark](x0) = x0, [a__U11](x0, x1) = 5x0 + 6x1, [tt] = 0, [cons](x0, x1) = 6x0 + 4x1, [zeros] = 0, [0] = 0, [a__zeros] = 0 orientation: a__zeros() = 0 >= 0 = cons(0(),zeros()) a__U11(tt(),L) = 6L >= 4L = s(a__length(mark(L))) a__and(tt(),X) = 4X >= X = mark(X) a__isNat(0()) = 0 >= 0 = tt() a__isNat(length(V1)) = 4V1 >= 2V1 = a__isNatList(V1) a__isNat(s(V1)) = V1 >= V1 = a__isNat(V1) a__isNatIList(V) = 4V >= 2V = a__isNatList(V) a__isNatIList(zeros()) = 0 >= 0 = tt() a__isNatIList(cons(V1,V2)) = 24V1 + 16V2 >= V1 + 16V2 = a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(nil()) = 8 >= 0 = tt() a__isNatList(cons(V1,V2)) = 12V1 + 8V2 >= V1 + 8V2 = a__and(a__isNat(V1),isNatList(V2)) a__length(nil()) = 16 >= 0 = 0() a__length(cons(N,L)) = 16L + 24N >= 16L + 20N = a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) = 0 >= 0 = a__zeros() mark(U11(X1,X2)) = 5X1 + 6X2 >= 5X1 + 6X2 = a__U11(mark(X1),X2) mark(length(X)) = 4X >= 4X = a__length(mark(X)) mark(and(X1,X2)) = X1 + 4X2 >= X1 + 4X2 = a__and(mark(X1),X2) mark(isNat(X)) = X >= X = a__isNat(X) mark(isNatList(X)) = 2X >= 2X = a__isNatList(X) mark(isNatIList(X)) = 4X >= 4X = a__isNatIList(X) mark(cons(X1,X2)) = 6X1 + 4X2 >= 6X1 + 4X2 = cons(mark(X1),X2) mark(0()) = 0 >= 0 = 0() mark(tt()) = 0 >= 0 = tt() mark(s(X)) = X >= X = s(mark(X)) mark(nil()) = 4 >= 4 = nil() a__zeros() = 0 >= 0 = zeros() a__U11(X1,X2) = 5X1 + 6X2 >= 5X1 + 6X2 = U11(X1,X2) a__length(X) = 4X >= 4X = length(X) a__and(X1,X2) = X1 + 4X2 >= X1 + 4X2 = and(X1,X2) a__isNat(X) = X >= X = isNat(X) a__isNatList(X) = 2X >= 2X = isNatList(X) a__isNatIList(X) = 4X >= 4X = isNatIList(X) problem: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) mark(nil()) -> nil() a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Matrix Interpretation Processor: dim=1 interpretation: [and](x0, x1) = x0 + x1, [U11](x0, x1) = 2x0 + 2x1, [isNat](x0) = x0, [isNatList](x0) = 2x0, [nil] = 4, [isNatIList](x0) = 2x0, [a__isNatIList](x0) = 4x0, [a__isNatList](x0) = 2x0, [length](x0) = x0, [a__isNat](x0) = 2x0, [a__and](x0, x1) = x0 + 2x1, [s](x0) = x0, [a__length](x0) = x0, [mark](x0) = 2x0, [a__U11](x0, x1) = 2x0 + 2x1, [tt] = 0, [cons](x0, x1) = 4x0 + 6x1, [zeros] = 0, [0] = 0, [a__zeros] = 0 orientation: a__zeros() = 0 >= 0 = cons(0(),zeros()) a__U11(tt(),L) = 2L >= 2L = s(a__length(mark(L))) a__and(tt(),X) = 2X >= 2X = mark(X) a__isNat(0()) = 0 >= 0 = tt() a__isNat(length(V1)) = 2V1 >= 2V1 = a__isNatList(V1) a__isNat(s(V1)) = 2V1 >= 2V1 = a__isNat(V1) a__isNatIList(V) = 4V >= 2V = a__isNatList(V) a__isNatIList(zeros()) = 0 >= 0 = tt() a__isNatIList(cons(V1,V2)) = 16V1 + 24V2 >= 2V1 + 4V2 = a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) = 8V1 + 12V2 >= 2V1 + 4V2 = a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) = 6L + 4N >= 6L + 4N = a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) = 0 >= 0 = a__zeros() mark(U11(X1,X2)) = 4X1 + 4X2 >= 4X1 + 2X2 = a__U11(mark(X1),X2) mark(length(X)) = 2X >= 2X = a__length(mark(X)) mark(and(X1,X2)) = 2X1 + 2X2 >= 2X1 + 2X2 = a__and(mark(X1),X2) mark(isNat(X)) = 2X >= 2X = a__isNat(X) mark(isNatList(X)) = 4X >= 2X = a__isNatList(X) mark(isNatIList(X)) = 4X >= 4X = a__isNatIList(X) mark(cons(X1,X2)) = 8X1 + 12X2 >= 8X1 + 6X2 = cons(mark(X1),X2) mark(0()) = 0 >= 0 = 0() mark(tt()) = 0 >= 0 = tt() mark(s(X)) = 2X >= 2X = s(mark(X)) mark(nil()) = 8 >= 4 = nil() a__zeros() = 0 >= 0 = zeros() a__U11(X1,X2) = 2X1 + 2X2 >= 2X1 + 2X2 = U11(X1,X2) a__length(X) = X >= X = length(X) a__and(X1,X2) = X1 + 2X2 >= X1 + X2 = and(X1,X2) a__isNat(X) = 2X >= X = isNat(X) a__isNatList(X) = 2X >= 2X = isNatList(X) a__isNatIList(X) = 4X >= 2X = isNatIList(X) problem: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) DP Processor: DPs: a__U11#(tt(),L) -> mark#(L) a__U11#(tt(),L) -> a__length#(mark(L)) a__and#(tt(),X) -> mark#(X) a__isNat#(length(V1)) -> a__isNatList#(V1) a__isNat#(s(V1)) -> a__isNat#(V1) a__isNatIList#(V) -> a__isNatList#(V) a__isNatIList#(cons(V1,V2)) -> a__isNat#(V1) a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) a__length#(cons(N,L)) -> a__isNatList#(L) a__length#(cons(N,L)) -> a__and#(a__isNatList(L),isNat(N)) a__length#(cons(N,L)) -> a__U11#(a__and(a__isNatList(L),isNat(N)),L) mark#(zeros()) -> a__zeros#() mark#(U11(X1,X2)) -> mark#(X1) mark#(U11(X1,X2)) -> a__U11#(mark(X1),X2) mark#(length(X)) -> mark#(X) mark#(length(X)) -> a__length#(mark(X)) mark#(and(X1,X2)) -> mark#(X1) mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(isNat(X)) -> a__isNat#(X) mark#(isNatList(X)) -> a__isNatList#(X) mark#(isNatIList(X)) -> a__isNatIList#(X) mark#(cons(X1,X2)) -> mark#(X1) mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) TDG Processor: DPs: a__U11#(tt(),L) -> mark#(L) a__U11#(tt(),L) -> a__length#(mark(L)) a__and#(tt(),X) -> mark#(X) a__isNat#(length(V1)) -> a__isNatList#(V1) a__isNat#(s(V1)) -> a__isNat#(V1) a__isNatIList#(V) -> a__isNatList#(V) a__isNatIList#(cons(V1,V2)) -> a__isNat#(V1) a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) a__length#(cons(N,L)) -> a__isNatList#(L) a__length#(cons(N,L)) -> a__and#(a__isNatList(L),isNat(N)) a__length#(cons(N,L)) -> a__U11#(a__and(a__isNatList(L),isNat(N)),L) mark#(zeros()) -> a__zeros#() mark#(U11(X1,X2)) -> mark#(X1) mark#(U11(X1,X2)) -> a__U11#(mark(X1),X2) mark#(length(X)) -> mark#(X) mark#(length(X)) -> a__length#(mark(X)) mark#(and(X1,X2)) -> mark#(X1) mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(isNat(X)) -> a__isNat#(X) mark#(isNatList(X)) -> a__isNatList#(X) mark#(isNatIList(X)) -> a__isNatIList#(X) mark#(cons(X1,X2)) -> mark#(X1) mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) graph: a__isNatIList#(cons(V1,V2)) -> a__isNat#(V1) -> a__isNat#(s(V1)) -> a__isNat#(V1) a__isNatIList#(cons(V1,V2)) -> a__isNat#(V1) -> a__isNat#(length(V1)) -> a__isNatList#(V1) a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) -> a__and#(tt(),X) -> mark#(X) a__isNatIList#(V) -> a__isNatList#(V) -> a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) a__isNatIList#(V) -> a__isNatList#(V) -> a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) -> a__isNat#(s(V1)) -> a__isNat#(V1) a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) -> a__isNat#(length(V1)) -> a__isNatList#(V1) a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) -> a__and#(tt(),X) -> mark#(X) a__isNat#(length(V1)) -> a__isNatList#(V1) -> a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) a__isNat#(length(V1)) -> a__isNatList#(V1) -> a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) a__isNat#(s(V1)) -> a__isNat#(V1) -> a__isNat#(s(V1)) -> a__isNat#(V1) a__isNat#(s(V1)) -> a__isNat#(V1) -> a__isNat#(length(V1)) -> a__isNatList#(V1) a__and#(tt(),X) -> mark#(X) -> mark#(s(X)) -> mark#(X) a__and#(tt(),X) -> mark#(X) -> mark#(cons(X1,X2)) -> mark#(X1) a__and#(tt(),X) -> mark#(X) -> mark#(isNatIList(X)) -> a__isNatIList#(X) a__and#(tt(),X) -> mark#(X) -> mark#(isNatList(X)) -> a__isNatList#(X) a__and#(tt(),X) -> mark#(X) -> mark#(isNat(X)) -> a__isNat#(X) a__and#(tt(),X) -> mark#(X) -> mark#(and(X1,X2)) -> a__and#(mark(X1),X2) a__and#(tt(),X) -> mark#(X) -> mark#(and(X1,X2)) -> mark#(X1) a__and#(tt(),X) -> mark#(X) -> mark#(length(X)) -> a__length#(mark(X)) a__and#(tt(),X) -> mark#(X) -> mark#(length(X)) -> mark#(X) a__and#(tt(),X) -> mark#(X) -> mark#(U11(X1,X2)) -> a__U11#(mark(X1),X2) a__and#(tt(),X) -> mark#(X) -> mark#(U11(X1,X2)) -> mark#(X1) a__and#(tt(),X) -> mark#(X) -> mark#(zeros()) -> a__zeros#() a__length#(cons(N,L)) -> a__isNatList#(L) -> a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) a__length#(cons(N,L)) -> a__isNatList#(L) -> a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) a__length#(cons(N,L)) -> a__and#(a__isNatList(L),isNat(N)) -> a__and#(tt(),X) -> mark#(X) a__length#(cons(N,L)) -> a__U11#(a__and(a__isNatList(L),isNat(N)),L) -> a__U11#(tt(),L) -> a__length#(mark(L)) a__length#(cons(N,L)) -> a__U11#(a__and(a__isNatList(L),isNat(N)),L) -> a__U11#(tt(),L) -> mark#(L) mark#(and(X1,X2)) -> a__and#(mark(X1),X2) -> a__and#(tt(),X) -> mark#(X) mark#(and(X1,X2)) -> mark#(X1) -> mark#(s(X)) -> mark#(X) mark#(and(X1,X2)) -> mark#(X1) -> mark#(cons(X1,X2)) -> mark#(X1) mark#(and(X1,X2)) -> mark#(X1) -> mark#(isNatIList(X)) -> a__isNatIList#(X) mark#(and(X1,X2)) -> mark#(X1) -> mark#(isNatList(X)) -> a__isNatList#(X) mark#(and(X1,X2)) -> mark#(X1) -> mark#(isNat(X)) -> a__isNat#(X) mark#(and(X1,X2)) -> mark#(X1) -> mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(and(X1,X2)) -> mark#(X1) -> mark#(and(X1,X2)) -> mark#(X1) mark#(and(X1,X2)) -> mark#(X1) -> mark#(length(X)) -> a__length#(mark(X)) mark#(and(X1,X2)) -> mark#(X1) -> mark#(length(X)) -> mark#(X) mark#(and(X1,X2)) -> mark#(X1) -> mark#(U11(X1,X2)) -> a__U11#(mark(X1),X2) mark#(and(X1,X2)) -> mark#(X1) -> mark#(U11(X1,X2)) -> mark#(X1) mark#(and(X1,X2)) -> mark#(X1) -> mark#(zeros()) -> a__zeros#() mark#(U11(X1,X2)) -> mark#(X1) -> mark#(s(X)) -> mark#(X) mark#(U11(X1,X2)) -> mark#(X1) -> mark#(cons(X1,X2)) -> mark#(X1) mark#(U11(X1,X2)) -> mark#(X1) -> mark#(isNatIList(X)) -> a__isNatIList#(X) mark#(U11(X1,X2)) -> mark#(X1) -> mark#(isNatList(X)) -> a__isNatList#(X) mark#(U11(X1,X2)) -> mark#(X1) -> mark#(isNat(X)) -> a__isNat#(X) mark#(U11(X1,X2)) -> mark#(X1) -> mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(U11(X1,X2)) -> mark#(X1) -> mark#(and(X1,X2)) -> mark#(X1) mark#(U11(X1,X2)) -> mark#(X1) -> mark#(length(X)) -> a__length#(mark(X)) mark#(U11(X1,X2)) -> mark#(X1) -> mark#(length(X)) -> mark#(X) mark#(U11(X1,X2)) -> mark#(X1) -> mark#(U11(X1,X2)) -> a__U11#(mark(X1),X2) mark#(U11(X1,X2)) -> mark#(X1) -> mark#(U11(X1,X2)) -> mark#(X1) mark#(U11(X1,X2)) -> mark#(X1) -> mark#(zeros()) -> a__zeros#() mark#(U11(X1,X2)) -> a__U11#(mark(X1),X2) -> a__U11#(tt(),L) -> a__length#(mark(L)) mark#(U11(X1,X2)) -> a__U11#(mark(X1),X2) -> a__U11#(tt(),L) -> mark#(L) mark#(isNat(X)) -> a__isNat#(X) -> a__isNat#(s(V1)) -> a__isNat#(V1) mark#(isNat(X)) -> a__isNat#(X) -> a__isNat#(length(V1)) -> a__isNatList#(V1) mark#(isNatList(X)) -> a__isNatList#(X) -> a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) mark#(isNatList(X)) -> a__isNatList#(X) -> a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) mark#(isNatIList(X)) -> a__isNatIList#(X) -> a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) mark#(isNatIList(X)) -> a__isNatIList#(X) -> a__isNatIList#(cons(V1,V2)) -> a__isNat#(V1) mark#(isNatIList(X)) -> a__isNatIList#(X) -> a__isNatIList#(V) -> a__isNatList#(V) mark#(length(X)) -> a__length#(mark(X)) -> a__length#(cons(N,L)) -> a__U11#(a__and(a__isNatList(L),isNat(N)),L) mark#(length(X)) -> a__length#(mark(X)) -> a__length#(cons(N,L)) -> a__and#(a__isNatList(L),isNat(N)) mark#(length(X)) -> a__length#(mark(X)) -> a__length#(cons(N,L)) -> a__isNatList#(L) mark#(length(X)) -> mark#(X) -> mark#(s(X)) -> mark#(X) mark#(length(X)) -> mark#(X) -> mark#(cons(X1,X2)) -> mark#(X1) mark#(length(X)) -> mark#(X) -> mark#(isNatIList(X)) -> a__isNatIList#(X) mark#(length(X)) -> mark#(X) -> mark#(isNatList(X)) -> a__isNatList#(X) mark#(length(X)) -> mark#(X) -> mark#(isNat(X)) -> a__isNat#(X) mark#(length(X)) -> mark#(X) -> mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(length(X)) -> mark#(X) -> mark#(and(X1,X2)) -> mark#(X1) mark#(length(X)) -> mark#(X) -> mark#(length(X)) -> a__length#(mark(X)) mark#(length(X)) -> mark#(X) -> mark#(length(X)) -> mark#(X) mark#(length(X)) -> mark#(X) -> mark#(U11(X1,X2)) -> a__U11#(mark(X1),X2) mark#(length(X)) -> mark#(X) -> mark#(U11(X1,X2)) -> mark#(X1) mark#(length(X)) -> mark#(X) -> mark#(zeros()) -> a__zeros#() mark#(s(X)) -> mark#(X) -> mark#(s(X)) -> mark#(X) mark#(s(X)) -> mark#(X) -> mark#(cons(X1,X2)) -> mark#(X1) mark#(s(X)) -> mark#(X) -> mark#(isNatIList(X)) -> a__isNatIList#(X) mark#(s(X)) -> mark#(X) -> mark#(isNatList(X)) -> a__isNatList#(X) mark#(s(X)) -> mark#(X) -> mark#(isNat(X)) -> a__isNat#(X) mark#(s(X)) -> mark#(X) -> mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(s(X)) -> mark#(X) -> mark#(and(X1,X2)) -> mark#(X1) mark#(s(X)) -> mark#(X) -> mark#(length(X)) -> a__length#(mark(X)) mark#(s(X)) -> mark#(X) -> mark#(length(X)) -> mark#(X) mark#(s(X)) -> mark#(X) -> mark#(U11(X1,X2)) -> a__U11#(mark(X1),X2) mark#(s(X)) -> mark#(X) -> mark#(U11(X1,X2)) -> mark#(X1) mark#(s(X)) -> mark#(X) -> mark#(zeros()) -> a__zeros#() mark#(cons(X1,X2)) -> mark#(X1) -> mark#(s(X)) -> mark#(X) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(cons(X1,X2)) -> mark#(X1) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(isNatIList(X)) -> a__isNatIList#(X) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(isNatList(X)) -> a__isNatList#(X) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(isNat(X)) -> a__isNat#(X) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(and(X1,X2)) -> mark#(X1) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(length(X)) -> a__length#(mark(X)) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(length(X)) -> mark#(X) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(U11(X1,X2)) -> a__U11#(mark(X1),X2) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(U11(X1,X2)) -> mark#(X1) mark#(cons(X1,X2)) -> mark#(X1) -> mark#(zeros()) -> a__zeros#() a__U11#(tt(),L) -> a__length#(mark(L)) -> a__length#(cons(N,L)) -> a__U11#(a__and(a__isNatList(L),isNat(N)),L) a__U11#(tt(),L) -> a__length#(mark(L)) -> a__length#(cons(N,L)) -> a__and#(a__isNatList(L),isNat(N)) a__U11#(tt(),L) -> a__length#(mark(L)) -> a__length#(cons(N,L)) -> a__isNatList#(L) a__U11#(tt(),L) -> mark#(L) -> mark#(s(X)) -> mark#(X) a__U11#(tt(),L) -> mark#(L) -> mark#(cons(X1,X2)) -> mark#(X1) a__U11#(tt(),L) -> mark#(L) -> mark#(isNatIList(X)) -> a__isNatIList#(X) a__U11#(tt(),L) -> mark#(L) -> mark#(isNatList(X)) -> a__isNatList#(X) a__U11#(tt(),L) -> mark#(L) -> mark#(isNat(X)) -> a__isNat#(X) a__U11#(tt(),L) -> mark#(L) -> mark#(and(X1,X2)) -> a__and#(mark(X1),X2) a__U11#(tt(),L) -> mark#(L) -> mark#(and(X1,X2)) -> mark#(X1) a__U11#(tt(),L) -> mark#(L) -> mark#(length(X)) -> a__length#(mark(X)) a__U11#(tt(),L) -> mark#(L) -> mark#(length(X)) -> mark#(X) a__U11#(tt(),L) -> mark#(L) -> mark#(U11(X1,X2)) -> a__U11#(mark(X1),X2) a__U11#(tt(),L) -> mark#(L) -> mark#(U11(X1,X2)) -> mark#(X1) a__U11#(tt(),L) -> mark#(L) -> mark#(zeros()) -> a__zeros#() SCC Processor: #sccs: 1 #rules: 24 #arcs: 117/625 DPs: a__isNatIList#(cons(V1,V2)) -> a__isNat#(V1) a__isNat#(length(V1)) -> a__isNatList#(V1) a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) a__isNat#(s(V1)) -> a__isNat#(V1) a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) a__and#(tt(),X) -> mark#(X) mark#(U11(X1,X2)) -> mark#(X1) mark#(U11(X1,X2)) -> a__U11#(mark(X1),X2) a__U11#(tt(),L) -> mark#(L) mark#(length(X)) -> mark#(X) mark#(length(X)) -> a__length#(mark(X)) a__length#(cons(N,L)) -> a__isNatList#(L) a__length#(cons(N,L)) -> a__and#(a__isNatList(L),isNat(N)) a__length#(cons(N,L)) -> a__U11#(a__and(a__isNatList(L),isNat(N)),L) a__U11#(tt(),L) -> a__length#(mark(L)) mark#(and(X1,X2)) -> mark#(X1) mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(isNat(X)) -> a__isNat#(X) mark#(isNatList(X)) -> a__isNatList#(X) mark#(isNatIList(X)) -> a__isNatIList#(X) a__isNatIList#(V) -> a__isNatList#(V) a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) mark#(cons(X1,X2)) -> mark#(X1) mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Arctic Interpretation Processor: dimension: 1 interpretation: [a__isNatIList#](x0) = x0 + 0, [a__isNatList#](x0) = 0, [a__isNat#](x0) = 0, [a__and#](x0, x1) = x0 + x1 + 0, [a__length#](x0) = x0 + 0, [mark#](x0) = x0, [a__U11#](x0, x1) = x0 + x1 + 0, [and](x0, x1) = x0 + x1 + 0, [U11](x0, x1) = 4x0 + 1x1 + 4, [isNat](x0) = 0, [isNatList](x0) = 0, [isNatIList](x0) = x0 + 0, [a__isNatIList](x0) = x0 + 0, [a__isNatList](x0) = 0, [length](x0) = 1x0 + 4, [a__isNat](x0) = 0, [a__and](x0, x1) = x0 + x1 + 0, [s](x0) = x0 + 0, [a__length](x0) = 1x0 + 4, [mark](x0) = x0 + 0, [a__U11](x0, x1) = 4x0 + 1x1 + 4, [tt] = 0, [cons](x0, x1) = x0 + x1, [zeros] = 0, [0] = 0, [a__zeros] = 0 orientation: a__isNatIList#(cons(V1,V2)) = V1 + V2 + 0 >= 0 = a__isNat#(V1) a__isNat#(length(V1)) = 0 >= 0 = a__isNatList#(V1) a__isNatList#(cons(V1,V2)) = 0 >= 0 = a__isNat#(V1) a__isNat#(s(V1)) = 0 >= 0 = a__isNat#(V1) a__isNatList#(cons(V1,V2)) = 0 >= 0 = a__and#(a__isNat(V1),isNatList(V2)) a__and#(tt(),X) = X + 0 >= X = mark#(X) mark#(U11(X1,X2)) = 4X1 + 1X2 + 4 >= X1 = mark#(X1) mark#(U11(X1,X2)) = 4X1 + 1X2 + 4 >= X1 + X2 + 0 = a__U11#(mark(X1),X2) a__U11#(tt(),L) = L + 0 >= L = mark#(L) mark#(length(X)) = 1X + 4 >= X = mark#(X) mark#(length(X)) = 1X + 4 >= X + 0 = a__length#(mark(X)) a__length#(cons(N,L)) = L + N + 0 >= 0 = a__isNatList#(L) a__length#(cons(N,L)) = L + N + 0 >= 0 = a__and#(a__isNatList(L),isNat(N)) a__length#(cons(N,L)) = L + N + 0 >= L + 0 = a__U11#(a__and(a__isNatList(L),isNat(N)),L) a__U11#(tt(),L) = L + 0 >= L + 0 = a__length#(mark(L)) mark#(and(X1,X2)) = X1 + X2 + 0 >= X1 = mark#(X1) mark#(and(X1,X2)) = X1 + X2 + 0 >= X1 + X2 + 0 = a__and#(mark(X1),X2) mark#(isNat(X)) = 0 >= 0 = a__isNat#(X) mark#(isNatList(X)) = 0 >= 0 = a__isNatList#(X) mark#(isNatIList(X)) = X + 0 >= X + 0 = a__isNatIList#(X) a__isNatIList#(V) = V + 0 >= 0 = a__isNatList#(V) a__isNatIList#(cons(V1,V2)) = V1 + V2 + 0 >= V2 + 0 = a__and#(a__isNat(V1),isNatIList(V2)) mark#(cons(X1,X2)) = X1 + X2 >= X1 = mark#(X1) mark#(s(X)) = X + 0 >= X = mark#(X) a__zeros() = 0 >= 0 = cons(0(),zeros()) a__U11(tt(),L) = 1L + 4 >= 1L + 4 = s(a__length(mark(L))) a__and(tt(),X) = X + 0 >= X + 0 = mark(X) a__isNat(0()) = 0 >= 0 = tt() a__isNat(length(V1)) = 0 >= 0 = a__isNatList(V1) a__isNat(s(V1)) = 0 >= 0 = a__isNat(V1) a__isNatIList(V) = V + 0 >= 0 = a__isNatList(V) a__isNatIList(zeros()) = 0 >= 0 = tt() a__isNatIList(cons(V1,V2)) = V1 + V2 + 0 >= V2 + 0 = a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) = 0 >= 0 = a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) = 1L + 1N + 4 >= 1L + 4 = a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) = 0 >= 0 = a__zeros() mark(U11(X1,X2)) = 4X1 + 1X2 + 4 >= 4X1 + 1X2 + 4 = a__U11(mark(X1),X2) mark(length(X)) = 1X + 4 >= 1X + 4 = a__length(mark(X)) mark(and(X1,X2)) = X1 + X2 + 0 >= X1 + X2 + 0 = a__and(mark(X1),X2) mark(isNat(X)) = 0 >= 0 = a__isNat(X) mark(isNatList(X)) = 0 >= 0 = a__isNatList(X) mark(isNatIList(X)) = X + 0 >= X + 0 = a__isNatIList(X) mark(cons(X1,X2)) = X1 + X2 + 0 >= X1 + X2 + 0 = cons(mark(X1),X2) mark(0()) = 0 >= 0 = 0() mark(tt()) = 0 >= 0 = tt() mark(s(X)) = X + 0 >= X + 0 = s(mark(X)) a__zeros() = 0 >= 0 = zeros() a__U11(X1,X2) = 4X1 + 1X2 + 4 >= 4X1 + 1X2 + 4 = U11(X1,X2) a__length(X) = 1X + 4 >= 1X + 4 = length(X) a__and(X1,X2) = X1 + X2 + 0 >= X1 + X2 + 0 = and(X1,X2) a__isNat(X) = 0 >= 0 = isNat(X) a__isNatList(X) = 0 >= 0 = isNatList(X) a__isNatIList(X) = X + 0 >= X + 0 = isNatIList(X) problem: DPs: a__isNatIList#(cons(V1,V2)) -> a__isNat#(V1) a__isNat#(length(V1)) -> a__isNatList#(V1) a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) a__isNat#(s(V1)) -> a__isNat#(V1) a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) a__and#(tt(),X) -> mark#(X) a__U11#(tt(),L) -> mark#(L) a__length#(cons(N,L)) -> a__isNatList#(L) a__length#(cons(N,L)) -> a__and#(a__isNatList(L),isNat(N)) a__length#(cons(N,L)) -> a__U11#(a__and(a__isNatList(L),isNat(N)),L) a__U11#(tt(),L) -> a__length#(mark(L)) mark#(and(X1,X2)) -> mark#(X1) mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(isNat(X)) -> a__isNat#(X) mark#(isNatList(X)) -> a__isNatList#(X) mark#(isNatIList(X)) -> a__isNatIList#(X) a__isNatIList#(V) -> a__isNatList#(V) a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) mark#(cons(X1,X2)) -> mark#(X1) mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) SCC Processor: #sccs: 2 #rules: 17 #arcs: 110/400 DPs: a__length#(cons(N,L)) -> a__U11#(a__and(a__isNatList(L),isNat(N)),L) a__U11#(tt(),L) -> a__length#(mark(L)) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Matrix Interpretation Processor: dim=1 interpretation: [a__length#](x0) = 3, [a__U11#](x0, x1) = 2x0, [and](x0, x1) = 1/2x0 + x1, [U11](x0, x1) = 1/2, [isNat](x0) = 1, [isNatList](x0) = 0, [isNatIList](x0) = 1, [a__isNatIList](x0) = 2, [a__isNatList](x0) = 1, [length](x0) = 1/2, [a__isNat](x0) = 2, [a__and](x0, x1) = 1/2x0 + x1, [s](x0) = 0, [a__length](x0) = 3/2, [mark](x0) = x0 + 1, [a__U11](x0, x1) = 3/2, [tt] = 2, [cons](x0, x1) = x0, [zeros] = 0, [0] = 0, [a__zeros] = 1/2 orientation: a__length#(cons(N,L)) = 3 >= 3 = a__U11#(a__and(a__isNatList(L),isNat(N)),L) a__U11#(tt(),L) = 4 >= 3 = a__length#(mark(L)) a__zeros() = 1/2 >= 0 = cons(0(),zeros()) a__U11(tt(),L) = 3/2 >= 0 = s(a__length(mark(L))) a__and(tt(),X) = X + 1 >= X + 1 = mark(X) a__isNat(0()) = 2 >= 2 = tt() a__isNat(length(V1)) = 2 >= 1 = a__isNatList(V1) a__isNat(s(V1)) = 2 >= 2 = a__isNat(V1) a__isNatIList(V) = 2 >= 1 = a__isNatList(V) a__isNatIList(zeros()) = 2 >= 2 = tt() a__isNatIList(cons(V1,V2)) = 2 >= 2 = a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) = 1 >= 1 = a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) = 3/2 >= 3/2 = a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) = 1 >= 1/2 = a__zeros() mark(U11(X1,X2)) = 3/2 >= 3/2 = a__U11(mark(X1),X2) mark(length(X)) = 3/2 >= 3/2 = a__length(mark(X)) mark(and(X1,X2)) = 1/2X1 + X2 + 1 >= 1/2X1 + X2 + 1/2 = a__and(mark(X1),X2) mark(isNat(X)) = 2 >= 2 = a__isNat(X) mark(isNatList(X)) = 1 >= 1 = a__isNatList(X) mark(isNatIList(X)) = 2 >= 2 = a__isNatIList(X) mark(cons(X1,X2)) = X1 + 1 >= X1 + 1 = cons(mark(X1),X2) mark(0()) = 1 >= 0 = 0() mark(tt()) = 3 >= 2 = tt() mark(s(X)) = 1 >= 0 = s(mark(X)) a__zeros() = 1/2 >= 0 = zeros() a__U11(X1,X2) = 3/2 >= 1/2 = U11(X1,X2) a__length(X) = 3/2 >= 1/2 = length(X) a__and(X1,X2) = 1/2X1 + X2 >= 1/2X1 + X2 = and(X1,X2) a__isNat(X) = 2 >= 1 = isNat(X) a__isNatList(X) = 1 >= 0 = isNatList(X) a__isNatIList(X) = 2 >= 1 = isNatIList(X) problem: DPs: a__length#(cons(N,L)) -> a__U11#(a__and(a__isNatList(L),isNat(N)),L) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) SCC Processor: #sccs: 0 #rules: 0 #arcs: 2/1 DPs: a__isNatIList#(cons(V1,V2)) -> a__isNat#(V1) a__isNat#(length(V1)) -> a__isNatList#(V1) a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) a__isNat#(s(V1)) -> a__isNat#(V1) a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) a__and#(tt(),X) -> mark#(X) mark#(and(X1,X2)) -> mark#(X1) mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(isNat(X)) -> a__isNat#(X) mark#(isNatList(X)) -> a__isNatList#(X) mark#(isNatIList(X)) -> a__isNatIList#(X) a__isNatIList#(V) -> a__isNatList#(V) a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) mark#(cons(X1,X2)) -> mark#(X1) mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Arctic Interpretation Processor: dimension: 1 interpretation: [a__isNatIList#](x0) = 0, [a__isNatList#](x0) = 0, [a__isNat#](x0) = 0, [a__and#](x0, x1) = x0 + x1 + 0, [mark#](x0) = x0 + 0, [and](x0, x1) = x0 + x1 + 0, [U11](x0, x1) = x0, [isNat](x0) = 0, [isNatList](x0) = 0, [isNatIList](x0) = 0, [a__isNatIList](x0) = 0, [a__isNatList](x0) = 0, [length](x0) = 0, [a__isNat](x0) = 0, [a__and](x0, x1) = x0 + x1 + 0, [s](x0) = x0 + 0, [a__length](x0) = 0, [mark](x0) = x0 + 0, [a__U11](x0, x1) = x0 + 0, [tt] = 0, [cons](x0, x1) = 1x0 + 1, [zeros] = 1, [0] = 0, [a__zeros] = 1 orientation: a__isNatIList#(cons(V1,V2)) = 0 >= 0 = a__isNat#(V1) a__isNat#(length(V1)) = 0 >= 0 = a__isNatList#(V1) a__isNatList#(cons(V1,V2)) = 0 >= 0 = a__isNat#(V1) a__isNat#(s(V1)) = 0 >= 0 = a__isNat#(V1) a__isNatList#(cons(V1,V2)) = 0 >= 0 = a__and#(a__isNat(V1),isNatList(V2)) a__and#(tt(),X) = X + 0 >= X + 0 = mark#(X) mark#(and(X1,X2)) = X1 + X2 + 0 >= X1 + 0 = mark#(X1) mark#(and(X1,X2)) = X1 + X2 + 0 >= X1 + X2 + 0 = a__and#(mark(X1),X2) mark#(isNat(X)) = 0 >= 0 = a__isNat#(X) mark#(isNatList(X)) = 0 >= 0 = a__isNatList#(X) mark#(isNatIList(X)) = 0 >= 0 = a__isNatIList#(X) a__isNatIList#(V) = 0 >= 0 = a__isNatList#(V) a__isNatIList#(cons(V1,V2)) = 0 >= 0 = a__and#(a__isNat(V1),isNatIList(V2)) mark#(cons(X1,X2)) = 1X1 + 1 >= X1 + 0 = mark#(X1) mark#(s(X)) = X + 0 >= X + 0 = mark#(X) a__zeros() = 1 >= 1 = cons(0(),zeros()) a__U11(tt(),L) = 0 >= 0 = s(a__length(mark(L))) a__and(tt(),X) = X + 0 >= X + 0 = mark(X) a__isNat(0()) = 0 >= 0 = tt() a__isNat(length(V1)) = 0 >= 0 = a__isNatList(V1) a__isNat(s(V1)) = 0 >= 0 = a__isNat(V1) a__isNatIList(V) = 0 >= 0 = a__isNatList(V) a__isNatIList(zeros()) = 0 >= 0 = tt() a__isNatIList(cons(V1,V2)) = 0 >= 0 = a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) = 0 >= 0 = a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) = 0 >= 0 = a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) = 1 >= 1 = a__zeros() mark(U11(X1,X2)) = X1 + 0 >= X1 + 0 = a__U11(mark(X1),X2) mark(length(X)) = 0 >= 0 = a__length(mark(X)) mark(and(X1,X2)) = X1 + X2 + 0 >= X1 + X2 + 0 = a__and(mark(X1),X2) mark(isNat(X)) = 0 >= 0 = a__isNat(X) mark(isNatList(X)) = 0 >= 0 = a__isNatList(X) mark(isNatIList(X)) = 0 >= 0 = a__isNatIList(X) mark(cons(X1,X2)) = 1X1 + 1 >= 1X1 + 1 = cons(mark(X1),X2) mark(0()) = 0 >= 0 = 0() mark(tt()) = 0 >= 0 = tt() mark(s(X)) = X + 0 >= X + 0 = s(mark(X)) a__zeros() = 1 >= 1 = zeros() a__U11(X1,X2) = X1 + 0 >= X1 = U11(X1,X2) a__length(X) = 0 >= 0 = length(X) a__and(X1,X2) = X1 + X2 + 0 >= X1 + X2 + 0 = and(X1,X2) a__isNat(X) = 0 >= 0 = isNat(X) a__isNatList(X) = 0 >= 0 = isNatList(X) a__isNatIList(X) = 0 >= 0 = isNatIList(X) problem: DPs: a__isNatIList#(cons(V1,V2)) -> a__isNat#(V1) a__isNat#(length(V1)) -> a__isNatList#(V1) a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) a__isNat#(s(V1)) -> a__isNat#(V1) a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) a__and#(tt(),X) -> mark#(X) mark#(and(X1,X2)) -> mark#(X1) mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(isNat(X)) -> a__isNat#(X) mark#(isNatList(X)) -> a__isNatList#(X) mark#(isNatIList(X)) -> a__isNatIList#(X) a__isNatIList#(V) -> a__isNatList#(V) a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Arctic Interpretation Processor: dimension: 1 interpretation: [a__isNatIList#](x0) = x0 + 4, [a__isNatList#](x0) = 0, [a__isNat#](x0) = 0, [a__and#](x0, x1) = x0 + x1 + 0, [mark#](x0) = x0, [and](x0, x1) = x0 + x1 + 0, [U11](x0, x1) = 3x0 + x1 + 3, [isNat](x0) = 0, [isNatList](x0) = 0, [isNatIList](x0) = x0 + 4, [a__isNatIList](x0) = x0 + 4, [a__isNatList](x0) = 0, [length](x0) = x0, [a__isNat](x0) = 0, [a__and](x0, x1) = x0 + x1 + 0, [s](x0) = x0 + 0, [a__length](x0) = x0 + 0, [mark](x0) = x0 + 0, [a__U11](x0, x1) = 3x0 + x1 + 3, [tt] = 0, [cons](x0, x1) = 2x0 + x1 + 4, [zeros] = 5, [0] = 2, [a__zeros] = 5 orientation: a__isNatIList#(cons(V1,V2)) = 2V1 + V2 + 4 >= 0 = a__isNat#(V1) a__isNat#(length(V1)) = 0 >= 0 = a__isNatList#(V1) a__isNatList#(cons(V1,V2)) = 0 >= 0 = a__isNat#(V1) a__isNat#(s(V1)) = 0 >= 0 = a__isNat#(V1) a__isNatList#(cons(V1,V2)) = 0 >= 0 = a__and#(a__isNat(V1),isNatList(V2)) a__and#(tt(),X) = X + 0 >= X = mark#(X) mark#(and(X1,X2)) = X1 + X2 + 0 >= X1 = mark#(X1) mark#(and(X1,X2)) = X1 + X2 + 0 >= X1 + X2 + 0 = a__and#(mark(X1),X2) mark#(isNat(X)) = 0 >= 0 = a__isNat#(X) mark#(isNatList(X)) = 0 >= 0 = a__isNatList#(X) mark#(isNatIList(X)) = X + 4 >= X + 4 = a__isNatIList#(X) a__isNatIList#(V) = V + 4 >= 0 = a__isNatList#(V) a__isNatIList#(cons(V1,V2)) = 2V1 + V2 + 4 >= V2 + 4 = a__and#(a__isNat(V1),isNatIList(V2)) mark#(s(X)) = X + 0 >= X = mark#(X) a__zeros() = 5 >= 5 = cons(0(),zeros()) a__U11(tt(),L) = L + 3 >= L + 0 = s(a__length(mark(L))) a__and(tt(),X) = X + 0 >= X + 0 = mark(X) a__isNat(0()) = 0 >= 0 = tt() a__isNat(length(V1)) = 0 >= 0 = a__isNatList(V1) a__isNat(s(V1)) = 0 >= 0 = a__isNat(V1) a__isNatIList(V) = V + 4 >= 0 = a__isNatList(V) a__isNatIList(zeros()) = 5 >= 0 = tt() a__isNatIList(cons(V1,V2)) = 2V1 + V2 + 4 >= V2 + 4 = a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) = 0 >= 0 = a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) = L + 2N + 4 >= L + 3 = a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) = 5 >= 5 = a__zeros() mark(U11(X1,X2)) = 3X1 + X2 + 3 >= 3X1 + X2 + 3 = a__U11(mark(X1),X2) mark(length(X)) = X + 0 >= X + 0 = a__length(mark(X)) mark(and(X1,X2)) = X1 + X2 + 0 >= X1 + X2 + 0 = a__and(mark(X1),X2) mark(isNat(X)) = 0 >= 0 = a__isNat(X) mark(isNatList(X)) = 0 >= 0 = a__isNatList(X) mark(isNatIList(X)) = X + 4 >= X + 4 = a__isNatIList(X) mark(cons(X1,X2)) = 2X1 + X2 + 4 >= 2X1 + X2 + 4 = cons(mark(X1),X2) mark(0()) = 2 >= 2 = 0() mark(tt()) = 0 >= 0 = tt() mark(s(X)) = X + 0 >= X + 0 = s(mark(X)) a__zeros() = 5 >= 5 = zeros() a__U11(X1,X2) = 3X1 + X2 + 3 >= 3X1 + X2 + 3 = U11(X1,X2) a__length(X) = X + 0 >= X = length(X) a__and(X1,X2) = X1 + X2 + 0 >= X1 + X2 + 0 = and(X1,X2) a__isNat(X) = 0 >= 0 = isNat(X) a__isNatList(X) = 0 >= 0 = isNatList(X) a__isNatIList(X) = X + 4 >= X + 4 = isNatIList(X) problem: DPs: a__isNat#(length(V1)) -> a__isNatList#(V1) a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) a__isNat#(s(V1)) -> a__isNat#(V1) a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) a__and#(tt(),X) -> mark#(X) mark#(and(X1,X2)) -> mark#(X1) mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(isNat(X)) -> a__isNat#(X) mark#(isNatList(X)) -> a__isNatList#(X) mark#(isNatIList(X)) -> a__isNatIList#(X) a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Arctic Interpretation Processor: dimension: 1 interpretation: [a__isNatIList#](x0) = x0, [a__isNatList#](x0) = x0, [a__isNat#](x0) = x0 + 0, [a__and#](x0, x1) = x0 + x1 + 0, [mark#](x0) = x0, [and](x0, x1) = x0 + x1 + 0, [U11](x0, x1) = 1x1 + 1, [isNat](x0) = x0 + 0, [isNatList](x0) = x0, [isNatIList](x0) = x0 + 0, [a__isNatIList](x0) = x0 + 0, [a__isNatList](x0) = x0, [length](x0) = 1x0 + 1, [a__isNat](x0) = x0 + 0, [a__and](x0, x1) = x0 + x1 + 0, [s](x0) = x0 + 0, [a__length](x0) = 1x0 + 1, [mark](x0) = x0 + 0, [a__U11](x0, x1) = 1x1 + 1, [tt] = 2, [cons](x0, x1) = x0 + x1 + 0, [zeros] = 5, [0] = 4, [a__zeros] = 5 orientation: a__isNat#(length(V1)) = 1V1 + 1 >= V1 = a__isNatList#(V1) a__isNatList#(cons(V1,V2)) = V1 + V2 + 0 >= V1 + 0 = a__isNat#(V1) a__isNat#(s(V1)) = V1 + 0 >= V1 + 0 = a__isNat#(V1) a__isNatList#(cons(V1,V2)) = V1 + V2 + 0 >= V1 + V2 + 0 = a__and#(a__isNat(V1),isNatList(V2)) a__and#(tt(),X) = X + 2 >= X = mark#(X) mark#(and(X1,X2)) = X1 + X2 + 0 >= X1 = mark#(X1) mark#(and(X1,X2)) = X1 + X2 + 0 >= X1 + X2 + 0 = a__and#(mark(X1),X2) mark#(isNat(X)) = X + 0 >= X + 0 = a__isNat#(X) mark#(isNatList(X)) = X >= X = a__isNatList#(X) mark#(isNatIList(X)) = X + 0 >= X = a__isNatIList#(X) a__isNatIList#(cons(V1,V2)) = V1 + V2 + 0 >= V1 + V2 + 0 = a__and#(a__isNat(V1),isNatIList(V2)) mark#(s(X)) = X + 0 >= X = mark#(X) a__zeros() = 5 >= 5 = cons(0(),zeros()) a__U11(tt(),L) = 1L + 1 >= 1L + 1 = s(a__length(mark(L))) a__and(tt(),X) = X + 2 >= X + 0 = mark(X) a__isNat(0()) = 4 >= 2 = tt() a__isNat(length(V1)) = 1V1 + 1 >= V1 = a__isNatList(V1) a__isNat(s(V1)) = V1 + 0 >= V1 + 0 = a__isNat(V1) a__isNatIList(V) = V + 0 >= V = a__isNatList(V) a__isNatIList(zeros()) = 5 >= 2 = tt() a__isNatIList(cons(V1,V2)) = V1 + V2 + 0 >= V1 + V2 + 0 = a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) = V1 + V2 + 0 >= V1 + V2 + 0 = a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) = 1L + 1N + 1 >= 1L + 1 = a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) = 5 >= 5 = a__zeros() mark(U11(X1,X2)) = 1X2 + 1 >= 1X2 + 1 = a__U11(mark(X1),X2) mark(length(X)) = 1X + 1 >= 1X + 1 = a__length(mark(X)) mark(and(X1,X2)) = X1 + X2 + 0 >= X1 + X2 + 0 = a__and(mark(X1),X2) mark(isNat(X)) = X + 0 >= X + 0 = a__isNat(X) mark(isNatList(X)) = X + 0 >= X = a__isNatList(X) mark(isNatIList(X)) = X + 0 >= X + 0 = a__isNatIList(X) mark(cons(X1,X2)) = X1 + X2 + 0 >= X1 + X2 + 0 = cons(mark(X1),X2) mark(0()) = 4 >= 4 = 0() mark(tt()) = 2 >= 2 = tt() mark(s(X)) = X + 0 >= X + 0 = s(mark(X)) a__zeros() = 5 >= 5 = zeros() a__U11(X1,X2) = 1X2 + 1 >= 1X2 + 1 = U11(X1,X2) a__length(X) = 1X + 1 >= 1X + 1 = length(X) a__and(X1,X2) = X1 + X2 + 0 >= X1 + X2 + 0 = and(X1,X2) a__isNat(X) = X + 0 >= X + 0 = isNat(X) a__isNatList(X) = X >= X = isNatList(X) a__isNatIList(X) = X + 0 >= X + 0 = isNatIList(X) problem: DPs: a__isNatList#(cons(V1,V2)) -> a__isNat#(V1) a__isNat#(s(V1)) -> a__isNat#(V1) a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) a__and#(tt(),X) -> mark#(X) mark#(and(X1,X2)) -> mark#(X1) mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(isNat(X)) -> a__isNat#(X) mark#(isNatList(X)) -> a__isNatList#(X) mark#(isNatIList(X)) -> a__isNatIList#(X) a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) SCC Processor: #sccs: 2 #rules: 9 #arcs: 48/121 DPs: a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) a__and#(tt(),X) -> mark#(X) mark#(and(X1,X2)) -> mark#(X1) mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(isNatList(X)) -> a__isNatList#(X) a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) mark#(isNatIList(X)) -> a__isNatIList#(X) mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Arctic Interpretation Processor: dimension: 1 interpretation: [a__isNatIList#](x0) = x0 + 0, [a__isNatList#](x0) = x0, [a__and#](x0, x1) = 1x0 + x1, [mark#](x0) = x0, [and](x0, x1) = 1x0 + x1, [U11](x0, x1) = x1 + 0, [isNat](x0) = x0, [isNatList](x0) = x0, [isNatIList](x0) = x0 + 0, [a__isNatIList](x0) = x0 + 0, [a__isNatList](x0) = x0, [length](x0) = x0, [a__isNat](x0) = x0, [a__and](x0, x1) = 1x0 + x1, [s](x0) = x0, [a__length](x0) = x0, [mark](x0) = x0, [a__U11](x0, x1) = x1 + 0, [tt] = 0, [cons](x0, x1) = 1x0 + x1 + 0, [zeros] = 1, [0] = 0, [a__zeros] = 1 orientation: a__isNatIList#(cons(V1,V2)) = 1V1 + V2 + 0 >= 1V1 + V2 + 0 = a__and#(a__isNat(V1),isNatIList(V2)) a__and#(tt(),X) = X + 1 >= X = mark#(X) mark#(and(X1,X2)) = 1X1 + X2 >= X1 = mark#(X1) mark#(and(X1,X2)) = 1X1 + X2 >= 1X1 + X2 = a__and#(mark(X1),X2) mark#(isNatList(X)) = X >= X = a__isNatList#(X) a__isNatList#(cons(V1,V2)) = 1V1 + V2 + 0 >= 1V1 + V2 = a__and#(a__isNat(V1),isNatList(V2)) mark#(isNatIList(X)) = X + 0 >= X + 0 = a__isNatIList#(X) mark#(s(X)) = X >= X = mark#(X) a__zeros() = 1 >= 1 = cons(0(),zeros()) a__U11(tt(),L) = L + 0 >= L = s(a__length(mark(L))) a__and(tt(),X) = X + 1 >= X = mark(X) a__isNat(0()) = 0 >= 0 = tt() a__isNat(length(V1)) = V1 >= V1 = a__isNatList(V1) a__isNat(s(V1)) = V1 >= V1 = a__isNat(V1) a__isNatIList(V) = V + 0 >= V = a__isNatList(V) a__isNatIList(zeros()) = 1 >= 0 = tt() a__isNatIList(cons(V1,V2)) = 1V1 + V2 + 0 >= 1V1 + V2 + 0 = a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) = 1V1 + V2 + 0 >= 1V1 + V2 = a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) = L + 1N + 0 >= L + 0 = a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) = 1 >= 1 = a__zeros() mark(U11(X1,X2)) = X2 + 0 >= X2 + 0 = a__U11(mark(X1),X2) mark(length(X)) = X >= X = a__length(mark(X)) mark(and(X1,X2)) = 1X1 + X2 >= 1X1 + X2 = a__and(mark(X1),X2) mark(isNat(X)) = X >= X = a__isNat(X) mark(isNatList(X)) = X >= X = a__isNatList(X) mark(isNatIList(X)) = X + 0 >= X + 0 = a__isNatIList(X) mark(cons(X1,X2)) = 1X1 + X2 + 0 >= 1X1 + X2 + 0 = cons(mark(X1),X2) mark(0()) = 0 >= 0 = 0() mark(tt()) = 0 >= 0 = tt() mark(s(X)) = X >= X = s(mark(X)) a__zeros() = 1 >= 1 = zeros() a__U11(X1,X2) = X2 + 0 >= X2 + 0 = U11(X1,X2) a__length(X) = X >= X = length(X) a__and(X1,X2) = 1X1 + X2 >= 1X1 + X2 = and(X1,X2) a__isNat(X) = X >= X = isNat(X) a__isNatList(X) = X >= X = isNatList(X) a__isNatIList(X) = X + 0 >= X + 0 = isNatIList(X) problem: DPs: a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) a__and#(tt(),X) -> mark#(X) mark#(and(X1,X2)) -> a__and#(mark(X1),X2) mark#(isNatList(X)) -> a__isNatList#(X) a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) mark#(isNatIList(X)) -> a__isNatIList#(X) mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Arctic Interpretation Processor: dimension: 1 interpretation: [a__isNatIList#](x0) = -2x0 + 0, [a__isNatList#](x0) = -8x0 + 0, [a__and#](x0, x1) = x1, [mark#](x0) = x0, [and](x0, x1) = 1x1, [U11](x0, x1) = x0 + 1x1, [isNat](x0) = x0, [isNatList](x0) = -6x0 + 0, [isNatIList](x0) = -2x0 + 0, [a__isNatIList](x0) = x0 + 2, [a__isNatList](x0) = -6x0 + 2, [length](x0) = 1x0 + 2, [a__isNat](x0) = x0, [a__and](x0, x1) = 2x1, [s](x0) = x0 + 0, [a__length](x0) = 1x0 + 2, [mark](x0) = 2x0, [a__U11](x0, x1) = x0 + 3x1, [tt] = 2, [cons](x0, x1) = 1x0 + 2x1, [zeros] = 4, [0] = 2, [a__zeros] = 6 orientation: a__isNatIList#(cons(V1,V2)) = -1V1 + V2 + 0 >= -2V2 + 0 = a__and#(a__isNat(V1),isNatIList(V2)) a__and#(tt(),X) = X >= X = mark#(X) mark#(and(X1,X2)) = 1X2 >= X2 = a__and#(mark(X1),X2) mark#(isNatList(X)) = -6X + 0 >= -8X + 0 = a__isNatList#(X) a__isNatList#(cons(V1,V2)) = -7V1 + -6V2 + 0 >= -6V2 + 0 = a__and#(a__isNat(V1),isNatList(V2)) mark#(isNatIList(X)) = -2X + 0 >= -2X + 0 = a__isNatIList#(X) mark#(s(X)) = X + 0 >= X = mark#(X) a__zeros() = 6 >= 6 = cons(0(),zeros()) a__U11(tt(),L) = 3L + 2 >= 3L + 2 = s(a__length(mark(L))) a__and(tt(),X) = 2X >= 2X = mark(X) a__isNat(0()) = 2 >= 2 = tt() a__isNat(length(V1)) = 1V1 + 2 >= -6V1 + 2 = a__isNatList(V1) a__isNat(s(V1)) = V1 + 0 >= V1 = a__isNat(V1) a__isNatIList(V) = V + 2 >= -6V + 2 = a__isNatList(V) a__isNatIList(zeros()) = 4 >= 2 = tt() a__isNatIList(cons(V1,V2)) = 1V1 + 2V2 + 2 >= V2 + 2 = a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) = -5V1 + -4V2 + 2 >= -4V2 + 2 = a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) = 3L + 2N + 2 >= 3L + 2N = a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) = 6 >= 6 = a__zeros() mark(U11(X1,X2)) = 2X1 + 3X2 >= 2X1 + 3X2 = a__U11(mark(X1),X2) mark(length(X)) = 3X + 4 >= 3X + 2 = a__length(mark(X)) mark(and(X1,X2)) = 3X2 >= 2X2 = a__and(mark(X1),X2) mark(isNat(X)) = 2X >= X = a__isNat(X) mark(isNatList(X)) = -4X + 2 >= -6X + 2 = a__isNatList(X) mark(isNatIList(X)) = X + 2 >= X + 2 = a__isNatIList(X) mark(cons(X1,X2)) = 3X1 + 4X2 >= 3X1 + 2X2 = cons(mark(X1),X2) mark(0()) = 4 >= 2 = 0() mark(tt()) = 4 >= 2 = tt() mark(s(X)) = 2X + 2 >= 2X + 0 = s(mark(X)) a__zeros() = 6 >= 4 = zeros() a__U11(X1,X2) = X1 + 3X2 >= X1 + 1X2 = U11(X1,X2) a__length(X) = 1X + 2 >= 1X + 2 = length(X) a__and(X1,X2) = 2X2 >= 1X2 = and(X1,X2) a__isNat(X) = X >= X = isNat(X) a__isNatList(X) = -6X + 2 >= -6X + 0 = isNatList(X) a__isNatIList(X) = X + 2 >= -2X + 0 = isNatIList(X) problem: DPs: a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) a__and#(tt(),X) -> mark#(X) mark#(isNatList(X)) -> a__isNatList#(X) a__isNatList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatList(V2)) mark#(isNatIList(X)) -> a__isNatIList#(X) mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Arctic Interpretation Processor: dimension: 1 interpretation: [a__isNatIList#](x0) = x0, [a__isNatList#](x0) = x0, [a__and#](x0, x1) = x1, [mark#](x0) = x0, [and](x0, x1) = x0 + 1x1 + 0, [U11](x0, x1) = 4x1, [isNat](x0) = x0 + 0, [isNatList](x0) = x0, [isNatIList](x0) = 1x0, [a__isNatIList](x0) = 1x0, [a__isNatList](x0) = x0, [length](x0) = 4x0, [a__isNat](x0) = x0 + 0, [a__and](x0, x1) = x0 + 1x1 + 0, [s](x0) = x0, [a__length](x0) = 4x0, [mark](x0) = 1x0, [a__U11](x0, x1) = 5x1, [tt] = 0, [cons](x0, x1) = x0 + 1x1 + 0, [zeros] = 0, [0] = 0, [a__zeros] = 1 orientation: a__isNatIList#(cons(V1,V2)) = V1 + 1V2 + 0 >= 1V2 = a__and#(a__isNat(V1),isNatIList(V2)) a__and#(tt(),X) = X >= X = mark#(X) mark#(isNatList(X)) = X >= X = a__isNatList#(X) a__isNatList#(cons(V1,V2)) = V1 + 1V2 + 0 >= V2 = a__and#(a__isNat(V1),isNatList(V2)) mark#(isNatIList(X)) = 1X >= X = a__isNatIList#(X) mark#(s(X)) = X >= X = mark#(X) a__zeros() = 1 >= 1 = cons(0(),zeros()) a__U11(tt(),L) = 5L >= 5L = s(a__length(mark(L))) a__and(tt(),X) = 1X + 0 >= 1X = mark(X) a__isNat(0()) = 0 >= 0 = tt() a__isNat(length(V1)) = 4V1 + 0 >= V1 = a__isNatList(V1) a__isNat(s(V1)) = V1 + 0 >= V1 + 0 = a__isNat(V1) a__isNatIList(V) = 1V >= V = a__isNatList(V) a__isNatIList(zeros()) = 1 >= 0 = tt() a__isNatIList(cons(V1,V2)) = 1V1 + 2V2 + 1 >= V1 + 2V2 + 0 = a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) = V1 + 1V2 + 0 >= V1 + 1V2 + 0 = a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) = 5L + 4N + 4 >= 5L = a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) = 1 >= 1 = a__zeros() mark(U11(X1,X2)) = 5X2 >= 5X2 = a__U11(mark(X1),X2) mark(length(X)) = 5X >= 5X = a__length(mark(X)) mark(and(X1,X2)) = 1X1 + 2X2 + 1 >= 1X1 + 1X2 + 0 = a__and(mark(X1),X2) mark(isNat(X)) = 1X + 1 >= X + 0 = a__isNat(X) mark(isNatList(X)) = 1X >= X = a__isNatList(X) mark(isNatIList(X)) = 2X >= 1X = a__isNatIList(X) mark(cons(X1,X2)) = 1X1 + 2X2 + 1 >= 1X1 + 1X2 + 0 = cons(mark(X1),X2) mark(0()) = 1 >= 0 = 0() mark(tt()) = 1 >= 0 = tt() mark(s(X)) = 1X >= 1X = s(mark(X)) a__zeros() = 1 >= 0 = zeros() a__U11(X1,X2) = 5X2 >= 4X2 = U11(X1,X2) a__length(X) = 4X >= 4X = length(X) a__and(X1,X2) = X1 + 1X2 + 0 >= X1 + 1X2 + 0 = and(X1,X2) a__isNat(X) = X + 0 >= X + 0 = isNat(X) a__isNatList(X) = X >= X = isNatList(X) a__isNatIList(X) = 1X >= 1X = isNatIList(X) problem: DPs: a__isNatIList#(cons(V1,V2)) -> a__and#(a__isNat(V1),isNatIList(V2)) a__and#(tt(),X) -> mark#(X) mark#(isNatList(X)) -> a__isNatList#(X) mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) SCC Processor: #sccs: 1 #rules: 1 #arcs: 20/16 DPs: mark#(s(X)) -> mark#(X) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Subterm Criterion Processor: simple projection: pi(mark#) = 0 problem: DPs: TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Qed DPs: a__isNat#(s(V1)) -> a__isNat#(V1) TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Subterm Criterion Processor: simple projection: pi(a__isNat#) = 0 problem: DPs: TRS: a__zeros() -> cons(0(),zeros()) a__U11(tt(),L) -> s(a__length(mark(L))) a__and(tt(),X) -> mark(X) a__isNat(0()) -> tt() a__isNat(length(V1)) -> a__isNatList(V1) a__isNat(s(V1)) -> a__isNat(V1) a__isNatIList(V) -> a__isNatList(V) a__isNatIList(zeros()) -> tt() a__isNatIList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatIList(V2)) a__isNatList(cons(V1,V2)) -> a__and(a__isNat(V1),isNatList(V2)) a__length(cons(N,L)) -> a__U11(a__and(a__isNatList(L),isNat(N)),L) mark(zeros()) -> a__zeros() mark(U11(X1,X2)) -> a__U11(mark(X1),X2) mark(length(X)) -> a__length(mark(X)) mark(and(X1,X2)) -> a__and(mark(X1),X2) mark(isNat(X)) -> a__isNat(X) mark(isNatList(X)) -> a__isNatList(X) mark(isNatIList(X)) -> a__isNatIList(X) mark(cons(X1,X2)) -> cons(mark(X1),X2) mark(0()) -> 0() mark(tt()) -> tt() mark(s(X)) -> s(mark(X)) a__zeros() -> zeros() a__U11(X1,X2) -> U11(X1,X2) a__length(X) -> length(X) a__and(X1,X2) -> and(X1,X2) a__isNat(X) -> isNat(X) a__isNatList(X) -> isNatList(X) a__isNatIList(X) -> isNatIList(X) Qed