MAYBE Time: 0.228485 TRS: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} DP: DP: { mark# cons(X1, X2) -> mark# X1, mark# cons(X1, X2) -> cons#(mark X1, X2), mark# cons(X1, X2) -> active# cons(mark X1, X2), mark# 0() -> active# 0(), mark# zeros() -> active# zeros(), mark# tt() -> active# tt(), mark# U11 X -> mark# X, mark# U11 X -> active# U11 mark X, mark# U11 X -> U11# mark X, mark# U21 X -> mark# X, mark# U21 X -> active# U21 mark X, mark# U21 X -> U21# mark X, mark# U31 X -> mark# X, mark# U31 X -> active# U31 mark X, mark# U31 X -> U31# mark X, mark# U42 X -> mark# X, mark# U42 X -> active# U42 mark X, mark# U42 X -> U42# mark X, mark# isNatIList X -> active# isNatIList X, mark# U41(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2), mark# U41(X1, X2) -> U41#(mark X1, X2), mark# U52 X -> mark# X, mark# U52 X -> active# U52 mark X, mark# U52 X -> U52# mark X, mark# isNatList X -> active# isNatList X, mark# U51(X1, X2) -> mark# X1, mark# U51(X1, X2) -> active# U51(mark X1, X2), mark# U51(X1, X2) -> U51#(mark X1, X2), mark# U62(X1, X2) -> mark# X1, mark# U62(X1, X2) -> active# U62(mark X1, X2), mark# U62(X1, X2) -> U62#(mark X1, X2), mark# isNat X -> active# isNat X, mark# U61(X1, X2, X3) -> mark# X1, mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3), mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3), mark# s X -> mark# X, mark# s X -> active# s mark X, mark# s X -> s# mark X, mark# length X -> mark# X, mark# length X -> active# length mark X, mark# length X -> length# mark X, mark# nil() -> active# nil(), cons#(X1, mark X2) -> cons#(X1, X2), cons#(X1, active X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2), cons#(active X1, X2) -> cons#(X1, X2), active# zeros() -> mark# cons(0(), zeros()), active# zeros() -> cons#(0(), zeros()), active# U11 tt() -> mark# tt(), active# U21 tt() -> mark# tt(), active# U31 tt() -> mark# tt(), active# U42 tt() -> mark# tt(), active# isNatIList V -> mark# U31 isNatList V, active# isNatIList V -> U31# isNatList V, active# isNatIList V -> isNatList# V, active# isNatIList cons(V1, V2) -> mark# U41(isNat V1, V2), active# isNatIList cons(V1, V2) -> U41#(isNat V1, V2), active# isNatIList cons(V1, V2) -> isNat# V1, active# isNatIList zeros() -> mark# tt(), active# U41(tt(), V2) -> mark# U42 isNatIList V2, active# U41(tt(), V2) -> U42# isNatIList V2, active# U41(tt(), V2) -> isNatIList# V2, active# U52 tt() -> mark# tt(), active# isNatList cons(V1, V2) -> mark# U51(isNat V1, V2), active# isNatList cons(V1, V2) -> U51#(isNat V1, V2), active# isNatList cons(V1, V2) -> isNat# V1, active# isNatList nil() -> mark# tt(), active# U51(tt(), V2) -> mark# U52 isNatList V2, active# U51(tt(), V2) -> U52# isNatList V2, active# U51(tt(), V2) -> isNatList# V2, active# U62(tt(), L) -> mark# s length L, active# U62(tt(), L) -> s# length L, active# U62(tt(), L) -> length# L, active# isNat 0() -> mark# tt(), active# isNat s V1 -> mark# U21 isNat V1, active# isNat s V1 -> U21# isNat V1, active# isNat s V1 -> isNat# V1, active# isNat length V1 -> mark# U11 isNatList V1, active# isNat length V1 -> U11# isNatList V1, active# isNat length V1 -> isNatList# V1, active# U61(tt(), L, N) -> mark# U62(isNat N, L), active# U61(tt(), L, N) -> U62#(isNat N, L), active# U61(tt(), L, N) -> isNat# N, active# length cons(N, L) -> mark# U61(isNatList L, L, N), active# length cons(N, L) -> isNatList# L, active# length cons(N, L) -> U61#(isNatList L, L, N), active# length nil() -> mark# 0(), U11# mark X -> U11# X, U11# active X -> U11# X, U21# mark X -> U21# X, U21# active X -> U21# X, U31# mark X -> U31# X, U31# active X -> U31# X, U42# mark X -> U42# X, U42# active X -> U42# X, isNatIList# mark X -> isNatIList# X, isNatIList# active X -> isNatIList# X, U41#(X1, mark X2) -> U41#(X1, X2), U41#(X1, active X2) -> U41#(X1, X2), U41#(mark X1, X2) -> U41#(X1, X2), U41#(active X1, X2) -> U41#(X1, X2), U52# mark X -> U52# X, U52# active X -> U52# X, isNatList# mark X -> isNatList# X, isNatList# active X -> isNatList# X, U51#(X1, mark X2) -> U51#(X1, X2), U51#(X1, active X2) -> U51#(X1, X2), U51#(mark X1, X2) -> U51#(X1, X2), U51#(active X1, X2) -> U51#(X1, X2), U62#(X1, mark X2) -> U62#(X1, X2), U62#(X1, active X2) -> U62#(X1, X2), U62#(mark X1, X2) -> U62#(X1, X2), U62#(active X1, X2) -> U62#(X1, X2), isNat# mark X -> isNat# X, isNat# active X -> isNat# X, U61#(X1, X2, mark X3) -> U61#(X1, X2, X3), U61#(X1, X2, active X3) -> U61#(X1, X2, X3), U61#(X1, mark X2, X3) -> U61#(X1, X2, X3), U61#(X1, active X2, X3) -> U61#(X1, X2, X3), U61#(mark X1, X2, X3) -> U61#(X1, X2, X3), U61#(active X1, X2, X3) -> U61#(X1, X2, X3), s# mark X -> s# X, s# active X -> s# X, length# mark X -> length# X, length# active X -> length# X} TRS: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} EDG: { (mark# U41(X1, X2) -> U41#(mark X1, X2), U41#(active X1, X2) -> U41#(X1, X2)) (mark# U41(X1, X2) -> U41#(mark X1, X2), U41#(mark X1, X2) -> U41#(X1, X2)) (mark# U41(X1, X2) -> U41#(mark X1, X2), U41#(X1, active X2) -> U41#(X1, X2)) (mark# U41(X1, X2) -> U41#(mark X1, X2), U41#(X1, mark X2) -> U41#(X1, X2)) (mark# U62(X1, X2) -> U62#(mark X1, X2), U62#(active X1, X2) -> U62#(X1, X2)) (mark# U62(X1, X2) -> U62#(mark X1, X2), U62#(mark X1, X2) -> U62#(X1, X2)) (mark# U62(X1, X2) -> U62#(mark X1, X2), U62#(X1, active X2) -> U62#(X1, X2)) (mark# U62(X1, X2) -> U62#(mark X1, X2), U62#(X1, mark X2) -> U62#(X1, X2)) (mark# U21 X -> U21# mark X, U21# active X -> U21# X) (mark# U21 X -> U21# mark X, U21# mark X -> U21# X) (mark# U42 X -> U42# mark X, U42# active X -> U42# X) (mark# U42 X -> U42# mark X, U42# mark X -> U42# X) (mark# U52 X -> U52# mark X, U52# active X -> U52# X) (mark# U52 X -> U52# mark X, U52# mark X -> U52# X) (mark# isNat X -> active# isNat X, active# isNat length V1 -> isNatList# V1) (mark# isNat X -> active# isNat X, active# isNat length V1 -> U11# isNatList V1) (mark# isNat X -> active# isNat X, active# isNat length V1 -> mark# U11 isNatList V1) (mark# isNat X -> active# isNat X, active# isNat s V1 -> isNat# V1) (mark# isNat X -> active# isNat X, active# isNat s V1 -> U21# isNat V1) (mark# isNat X -> active# isNat X, active# isNat s V1 -> mark# U21 isNat V1) (mark# isNat X -> active# isNat X, active# isNat 0() -> mark# tt()) (mark# length X -> length# mark X, length# active X -> length# X) (mark# length X -> length# mark X, length# mark X -> length# X) (active# U51(tt(), V2) -> isNatList# V2, isNatList# active X -> isNatList# X) (active# U51(tt(), V2) -> isNatList# V2, isNatList# mark X -> isNatList# X) (cons#(X1, active X2) -> cons#(X1, X2), cons#(active X1, X2) -> cons#(X1, X2)) (cons#(X1, active X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2)) (cons#(X1, active X2) -> cons#(X1, X2), cons#(X1, active X2) -> cons#(X1, X2)) (cons#(X1, active X2) -> cons#(X1, X2), cons#(X1, mark X2) -> cons#(X1, X2)) (cons#(active X1, X2) -> cons#(X1, X2), cons#(active X1, X2) -> cons#(X1, X2)) (cons#(active X1, X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2)) (cons#(active X1, X2) -> cons#(X1, X2), cons#(X1, active X2) -> cons#(X1, X2)) (cons#(active X1, X2) -> cons#(X1, X2), cons#(X1, mark X2) -> cons#(X1, X2)) (U41#(X1, active X2) -> U41#(X1, X2), U41#(active X1, X2) -> U41#(X1, X2)) (U41#(X1, active X2) -> U41#(X1, X2), U41#(mark X1, X2) -> U41#(X1, X2)) (U41#(X1, active X2) -> U41#(X1, X2), U41#(X1, active X2) -> U41#(X1, X2)) (U41#(X1, active X2) -> U41#(X1, X2), U41#(X1, mark X2) -> U41#(X1, X2)) (U41#(active X1, X2) -> U41#(X1, X2), U41#(active X1, X2) -> U41#(X1, X2)) (U41#(active X1, X2) -> U41#(X1, X2), U41#(mark X1, X2) -> U41#(X1, X2)) (U41#(active X1, X2) -> U41#(X1, X2), U41#(X1, active X2) -> U41#(X1, X2)) (U41#(active X1, X2) -> U41#(X1, X2), U41#(X1, mark X2) -> U41#(X1, X2)) (U51#(X1, active X2) -> U51#(X1, X2), U51#(active X1, X2) -> U51#(X1, X2)) (U51#(X1, active X2) -> U51#(X1, X2), U51#(mark X1, X2) -> U51#(X1, X2)) (U51#(X1, active X2) -> U51#(X1, X2), U51#(X1, active X2) -> U51#(X1, X2)) (U51#(X1, active X2) -> U51#(X1, X2), U51#(X1, mark X2) -> U51#(X1, X2)) (U51#(active X1, X2) -> U51#(X1, X2), U51#(active X1, X2) -> U51#(X1, X2)) (U51#(active X1, X2) -> U51#(X1, X2), U51#(mark X1, X2) -> U51#(X1, X2)) (U51#(active X1, X2) -> U51#(X1, X2), U51#(X1, active X2) -> U51#(X1, X2)) (U51#(active X1, X2) -> U51#(X1, X2), U51#(X1, mark X2) -> U51#(X1, X2)) (U62#(X1, active X2) -> U62#(X1, X2), U62#(active X1, X2) -> U62#(X1, X2)) (U62#(X1, active X2) -> U62#(X1, X2), U62#(mark X1, X2) -> U62#(X1, X2)) (U62#(X1, active X2) -> U62#(X1, X2), U62#(X1, active X2) -> U62#(X1, X2)) (U62#(X1, active X2) -> U62#(X1, X2), U62#(X1, mark X2) -> U62#(X1, X2)) (U62#(active X1, X2) -> U62#(X1, X2), U62#(active X1, X2) -> U62#(X1, X2)) (U62#(active X1, X2) -> U62#(X1, X2), U62#(mark X1, X2) -> U62#(X1, X2)) (U62#(active X1, X2) -> U62#(X1, X2), U62#(X1, active X2) -> U62#(X1, X2)) (U62#(active X1, X2) -> U62#(X1, X2), U62#(X1, mark X2) -> U62#(X1, X2)) (active# length cons(N, L) -> mark# U61(isNatList L, L, N), mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3)) (active# length cons(N, L) -> mark# U61(isNatList L, L, N), mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3)) (active# length cons(N, L) -> mark# U61(isNatList L, L, N), mark# U61(X1, X2, X3) -> mark# X1) (mark# cons(X1, X2) -> mark# X1, mark# nil() -> active# nil()) (mark# cons(X1, X2) -> mark# X1, mark# length X -> length# mark X) (mark# cons(X1, X2) -> mark# X1, mark# length X -> active# length mark X) (mark# cons(X1, X2) -> mark# X1, mark# length X -> mark# X) (mark# cons(X1, X2) -> mark# X1, mark# s X -> s# mark X) (mark# cons(X1, X2) -> mark# X1, mark# s X -> active# s mark X) (mark# cons(X1, X2) -> mark# X1, mark# s X -> mark# X) (mark# cons(X1, X2) -> mark# X1, mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3)) (mark# cons(X1, X2) -> mark# X1, mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3)) (mark# cons(X1, X2) -> mark# X1, mark# U61(X1, X2, X3) -> mark# X1) (mark# cons(X1, X2) -> mark# X1, mark# isNat X -> active# isNat X) (mark# cons(X1, X2) -> mark# X1, mark# U62(X1, X2) -> U62#(mark X1, X2)) (mark# cons(X1, X2) -> mark# X1, mark# U62(X1, X2) -> active# U62(mark X1, X2)) (mark# cons(X1, X2) -> mark# X1, mark# U62(X1, X2) -> mark# X1) (mark# cons(X1, X2) -> mark# X1, mark# U51(X1, X2) -> U51#(mark X1, X2)) (mark# cons(X1, X2) -> mark# X1, mark# U51(X1, X2) -> active# U51(mark X1, X2)) (mark# cons(X1, X2) -> mark# X1, mark# U51(X1, X2) -> mark# X1) (mark# cons(X1, X2) -> mark# X1, mark# isNatList X -> active# isNatList X) (mark# cons(X1, X2) -> mark# X1, mark# U52 X -> U52# mark X) (mark# cons(X1, X2) -> mark# X1, mark# U52 X -> active# U52 mark X) (mark# cons(X1, X2) -> mark# X1, mark# U52 X -> mark# X) (mark# cons(X1, X2) -> mark# X1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# cons(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# cons(X1, X2) -> mark# X1, mark# U41(X1, X2) -> mark# X1) (mark# cons(X1, X2) -> mark# X1, mark# isNatIList X -> active# isNatIList X) (mark# cons(X1, X2) -> mark# X1, mark# U42 X -> U42# mark X) (mark# cons(X1, X2) -> mark# X1, mark# U42 X -> active# U42 mark X) (mark# cons(X1, X2) -> mark# X1, mark# U42 X -> mark# X) (mark# cons(X1, X2) -> mark# X1, mark# U31 X -> U31# mark X) (mark# cons(X1, X2) -> mark# X1, mark# U31 X -> active# U31 mark X) (mark# cons(X1, X2) -> mark# X1, mark# U31 X -> mark# X) (mark# cons(X1, X2) -> mark# X1, mark# U21 X -> U21# mark X) (mark# cons(X1, X2) -> mark# X1, mark# U21 X -> active# U21 mark X) (mark# cons(X1, X2) -> mark# X1, mark# U21 X -> mark# X) (mark# cons(X1, X2) -> mark# X1, mark# U11 X -> U11# mark X) (mark# cons(X1, X2) -> mark# X1, mark# U11 X -> active# U11 mark X) (mark# cons(X1, X2) -> mark# X1, mark# U11 X -> mark# X) (mark# cons(X1, X2) -> mark# X1, mark# tt() -> active# tt()) (mark# cons(X1, X2) -> mark# X1, mark# zeros() -> active# zeros()) (mark# cons(X1, X2) -> mark# X1, mark# 0() -> active# 0()) (mark# cons(X1, X2) -> mark# X1, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# cons(X1, X2) -> mark# X1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# cons(X1, X2) -> mark# X1, mark# cons(X1, X2) -> mark# X1) (mark# U51(X1, X2) -> mark# X1, mark# nil() -> active# nil()) (mark# U51(X1, X2) -> mark# X1, mark# length X -> length# mark X) (mark# U51(X1, X2) -> mark# X1, mark# length X -> active# length mark X) (mark# U51(X1, X2) -> mark# X1, mark# length X -> mark# X) (mark# U51(X1, X2) -> mark# X1, mark# s X -> s# mark X) (mark# U51(X1, X2) -> mark# X1, mark# s X -> active# s mark X) (mark# U51(X1, X2) -> mark# X1, mark# s X -> mark# X) (mark# U51(X1, X2) -> mark# X1, mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3)) (mark# U51(X1, X2) -> mark# X1, mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3)) (mark# U51(X1, X2) -> mark# X1, mark# U61(X1, X2, X3) -> mark# X1) (mark# U51(X1, X2) -> mark# X1, mark# isNat X -> active# isNat X) (mark# U51(X1, X2) -> mark# X1, mark# U62(X1, X2) -> U62#(mark X1, X2)) (mark# U51(X1, X2) -> mark# X1, mark# U62(X1, X2) -> active# U62(mark X1, X2)) (mark# U51(X1, X2) -> mark# X1, mark# U62(X1, X2) -> mark# X1) (mark# U51(X1, X2) -> mark# X1, mark# U51(X1, X2) -> U51#(mark X1, X2)) (mark# U51(X1, X2) -> mark# X1, mark# U51(X1, X2) -> active# U51(mark X1, X2)) (mark# U51(X1, X2) -> mark# X1, mark# U51(X1, X2) -> mark# X1) (mark# U51(X1, X2) -> mark# X1, mark# isNatList X -> active# isNatList X) (mark# U51(X1, X2) -> mark# X1, mark# U52 X -> U52# mark X) (mark# U51(X1, X2) -> mark# X1, mark# U52 X -> active# U52 mark X) (mark# U51(X1, X2) -> mark# X1, mark# U52 X -> mark# X) (mark# U51(X1, X2) -> mark# X1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# U51(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# U51(X1, X2) -> mark# X1, mark# U41(X1, X2) -> mark# X1) (mark# U51(X1, X2) -> mark# X1, mark# isNatIList X -> active# isNatIList X) (mark# U51(X1, X2) -> mark# X1, mark# U42 X -> U42# mark X) (mark# U51(X1, X2) -> mark# X1, mark# U42 X -> active# U42 mark X) (mark# U51(X1, X2) -> mark# X1, mark# U42 X -> mark# X) (mark# U51(X1, X2) -> mark# X1, mark# U31 X -> U31# mark X) (mark# U51(X1, X2) -> mark# X1, mark# U31 X -> active# U31 mark X) (mark# U51(X1, X2) -> mark# X1, mark# U31 X -> mark# X) (mark# U51(X1, X2) -> mark# X1, mark# U21 X -> U21# mark X) (mark# U51(X1, X2) -> mark# X1, mark# U21 X -> active# U21 mark X) (mark# U51(X1, X2) -> mark# X1, mark# U21 X -> mark# X) (mark# U51(X1, X2) -> mark# X1, mark# U11 X -> U11# mark 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U61(X1, X2, X3) -> mark# X1, mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3)) (mark# U61(X1, X2, X3) -> mark# X1, mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3)) (mark# U61(X1, X2, X3) -> mark# X1, mark# U61(X1, X2, X3) -> mark# X1) (mark# U61(X1, X2, X3) -> mark# X1, mark# isNat X -> active# isNat X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U62(X1, X2) -> U62#(mark X1, X2)) (mark# U61(X1, X2, X3) -> mark# X1, mark# U62(X1, X2) -> active# U62(mark X1, X2)) (mark# U61(X1, X2, X3) -> mark# X1, mark# U62(X1, X2) -> mark# X1) (mark# U61(X1, X2, X3) -> mark# X1, mark# U51(X1, X2) -> U51#(mark X1, X2)) (mark# U61(X1, X2, X3) -> mark# X1, mark# U51(X1, X2) -> active# U51(mark X1, X2)) (mark# U61(X1, X2, X3) -> mark# X1, mark# U51(X1, X2) -> mark# X1) (mark# U61(X1, X2, X3) -> mark# X1, mark# isNatList X -> active# isNatList X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U52 X -> U52# mark X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U52 X -> active# U52 mark X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U52 X -> mark# X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# U61(X1, X2, X3) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# U61(X1, X2, X3) -> mark# X1, mark# U41(X1, X2) -> mark# X1) (mark# U61(X1, X2, X3) -> mark# X1, mark# isNatIList X -> active# isNatIList X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U42 X -> U42# mark X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U42 X -> active# U42 mark X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U42 X -> mark# X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U31 X -> U31# mark X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U31 X -> active# U31 mark X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U31 X -> mark# X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U21 X -> U21# mark X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U21 X -> active# U21 mark X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U21 X -> mark# X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U11 X -> U11# mark X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U11 X -> active# U11 mark X) (mark# U61(X1, X2, X3) -> mark# X1, mark# U11 X -> mark# X) (mark# U61(X1, X2, X3) -> mark# X1, mark# tt() -> active# tt()) (mark# U61(X1, X2, X3) -> mark# X1, mark# zeros() -> active# zeros()) (mark# U61(X1, X2, X3) -> mark# X1, mark# 0() -> active# 0()) (mark# U61(X1, X2, X3) -> mark# X1, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# U61(X1, X2, X3) -> mark# X1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# U61(X1, X2, X3) -> mark# X1, mark# cons(X1, X2) -> mark# X1) (mark# zeros() -> active# zeros(), active# zeros() -> cons#(0(), zeros())) (mark# zeros() -> active# zeros(), active# zeros() -> mark# cons(0(), zeros())) (active# U21 tt() -> mark# tt(), mark# tt() -> active# tt()) (active# U42 tt() -> mark# tt(), mark# tt() -> active# tt()) (active# U52 tt() -> mark# tt(), mark# tt() -> active# tt()) (active# isNat 0() -> mark# tt(), mark# tt() -> active# tt()) (active# isNatIList V -> isNatList# V, isNatList# active X -> isNatList# X) (active# isNatIList V -> isNatList# V, isNatList# mark X -> isNatList# X) (U61#(X1, X2, mark X3) -> U61#(X1, X2, X3), U61#(active X1, X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, X2, mark X3) -> U61#(X1, X2, X3), U61#(mark X1, X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, X2, mark X3) -> U61#(X1, X2, X3), U61#(X1, active X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, X2, mark X3) -> U61#(X1, X2, X3), U61#(X1, mark X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, X2, mark X3) -> U61#(X1, X2, X3), U61#(X1, X2, active X3) -> U61#(X1, X2, X3)) (U61#(X1, X2, mark X3) -> U61#(X1, X2, X3), U61#(X1, X2, mark X3) -> U61#(X1, X2, X3)) (U61#(X1, mark X2, X3) -> U61#(X1, X2, X3), U61#(active X1, X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, mark X2, X3) -> U61#(X1, X2, X3), U61#(mark X1, X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, mark X2, X3) -> U61#(X1, X2, X3), U61#(X1, active X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, mark X2, X3) -> U61#(X1, X2, X3), U61#(X1, mark X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, mark X2, X3) -> U61#(X1, X2, X3), U61#(X1, X2, active X3) -> U61#(X1, X2, X3)) (U61#(X1, mark X2, X3) -> U61#(X1, X2, X3), U61#(X1, X2, mark X3) -> U61#(X1, X2, X3)) (U61#(mark X1, X2, X3) -> U61#(X1, X2, X3), U61#(active X1, X2, X3) -> U61#(X1, X2, X3)) (U61#(mark X1, X2, X3) -> U61#(X1, X2, X3), U61#(mark X1, X2, X3) -> U61#(X1, X2, X3)) (U61#(mark X1, X2, X3) -> U61#(X1, X2, X3), U61#(X1, active X2, X3) -> U61#(X1, X2, X3)) (U61#(mark X1, X2, X3) -> U61#(X1, X2, X3), U61#(X1, mark X2, X3) -> U61#(X1, X2, X3)) (U61#(mark X1, X2, X3) -> U61#(X1, X2, X3), U61#(X1, X2, active X3) -> U61#(X1, X2, X3)) (U61#(mark X1, X2, X3) -> U61#(X1, X2, X3), U61#(X1, X2, mark X3) -> U61#(X1, X2, X3)) (active# isNatIList cons(V1, V2) -> isNat# V1, isNat# active X -> isNat# X) (active# isNatIList cons(V1, V2) -> isNat# V1, isNat# mark X -> isNat# X) (active# isNat s V1 -> isNat# V1, isNat# active X -> isNat# X) (active# isNat s V1 -> isNat# V1, isNat# mark X -> isNat# X) (active# isNatIList cons(V1, V2) -> U41#(isNat V1, V2), U41#(X1, active X2) -> U41#(X1, X2)) (active# isNatIList cons(V1, V2) -> U41#(isNat V1, V2), U41#(X1, mark X2) -> U41#(X1, X2)) (mark# U11 X -> active# U11 mark X, active# U11 tt() -> mark# tt()) (mark# U31 X -> active# U31 mark X, active# U31 tt() -> mark# tt()) (mark# U52 X -> active# U52 mark X, active# U52 tt() -> mark# tt()) (mark# length X -> active# length mark X, active# length nil() -> mark# 0()) (mark# length X -> active# length mark X, active# length cons(N, L) -> U61#(isNatList L, L, N)) (mark# length X -> active# length mark X, active# length cons(N, L) -> isNatList# L) (mark# length X -> active# length mark X, active# length cons(N, L) -> mark# U61(isNatList L, L, N)) (active# U41(tt(), V2) -> mark# U42 isNatIList V2, mark# U42 X -> U42# mark X) (active# U41(tt(), V2) -> mark# U42 isNatIList V2, mark# U42 X -> active# U42 mark X) (active# U41(tt(), V2) -> mark# U42 isNatIList V2, mark# U42 X -> mark# X) (active# U62(tt(), L) -> mark# s length L, mark# s X -> s# mark X) (active# U62(tt(), L) -> mark# s length L, mark# s X -> active# s mark X) (active# U62(tt(), L) -> mark# s length L, mark# s X -> mark# X) (active# isNat length V1 -> mark# U11 isNatList V1, mark# U11 X -> U11# mark X) (active# isNat length V1 -> mark# U11 isNatList V1, mark# U11 X -> active# U11 mark X) (active# isNat length V1 -> mark# U11 isNatList V1, mark# U11 X -> mark# X) (active# length cons(N, L) -> isNatList# L, isNatList# active X -> isNatList# X) (active# length cons(N, L) -> isNatList# L, isNatList# mark X -> isNatList# X) (mark# U51(X1, X2) -> active# U51(mark X1, X2), active# U51(tt(), V2) -> isNatList# V2) (mark# U51(X1, X2) -> active# U51(mark X1, X2), active# U51(tt(), V2) -> U52# isNatList V2) (mark# U51(X1, X2) -> active# U51(mark X1, X2), active# U51(tt(), V2) -> mark# U52 isNatList V2) (active# isNatIList cons(V1, V2) -> mark# U41(isNat V1, V2), mark# U41(X1, X2) -> U41#(mark X1, X2)) (active# isNatIList cons(V1, V2) -> mark# U41(isNat V1, V2), mark# U41(X1, X2) -> active# U41(mark X1, X2)) (active# isNatIList cons(V1, V2) -> mark# U41(isNat V1, V2), mark# U41(X1, X2) -> mark# X1) (active# U61(tt(), L, N) -> mark# U62(isNat N, L), mark# U62(X1, X2) -> U62#(mark X1, X2)) (active# U61(tt(), L, N) -> mark# U62(isNat N, L), mark# U62(X1, X2) -> active# U62(mark X1, X2)) (active# U61(tt(), L, N) -> mark# U62(isNat N, L), mark# U62(X1, X2) -> mark# X1) (mark# U21 X -> mark# X, mark# nil() -> active# nil()) (mark# U21 X -> mark# X, mark# length X -> length# mark X) (mark# U21 X -> mark# X, mark# length X -> active# length mark X) (mark# U21 X -> mark# X, mark# length X -> mark# X) (mark# U21 X -> mark# X, mark# s X -> s# mark X) (mark# U21 X -> mark# X, mark# s X -> active# s mark X) (mark# U21 X -> mark# X, mark# s X -> mark# X) (mark# U21 X -> mark# X, mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3)) (mark# U21 X -> mark# X, mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3)) (mark# U21 X -> mark# X, mark# U61(X1, X2, X3) -> mark# X1) (mark# U21 X -> mark# X, mark# isNat X -> active# isNat X) (mark# U21 X -> mark# X, mark# U62(X1, X2) -> U62#(mark X1, X2)) (mark# U21 X -> mark# X, mark# U62(X1, X2) -> active# U62(mark X1, X2)) (mark# U21 X -> mark# X, mark# U62(X1, X2) -> mark# X1) (mark# U21 X -> mark# X, mark# U51(X1, X2) -> U51#(mark X1, X2)) (mark# U21 X -> mark# X, mark# U51(X1, X2) -> active# U51(mark X1, X2)) (mark# U21 X -> mark# X, mark# U51(X1, X2) -> mark# X1) (mark# U21 X -> mark# X, mark# isNatList X -> active# isNatList X) (mark# U21 X -> mark# X, mark# U52 X -> U52# mark X) (mark# U21 X -> mark# X, mark# U52 X -> active# U52 mark X) (mark# U21 X -> mark# X, mark# U52 X -> mark# X) (mark# U21 X -> mark# X, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# U21 X -> mark# X, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# U21 X -> mark# X, mark# U41(X1, X2) -> mark# X1) (mark# U21 X -> mark# X, mark# isNatIList X -> active# isNatIList X) (mark# U21 X -> mark# X, mark# U42 X -> U42# mark X) (mark# U21 X -> mark# X, mark# U42 X -> active# U42 mark X) (mark# U21 X -> mark# X, mark# U42 X -> mark# X) (mark# U21 X -> mark# X, mark# U31 X -> U31# mark X) (mark# U21 X -> mark# X, mark# U31 X -> active# U31 mark X) (mark# U21 X -> mark# X, mark# U31 X -> mark# X) (mark# U21 X -> mark# X, mark# U21 X -> U21# mark X) (mark# U21 X -> mark# X, mark# U21 X -> active# U21 mark X) (mark# U21 X -> mark# X, mark# U21 X -> mark# X) (mark# U21 X -> mark# X, mark# U11 X -> U11# mark X) (mark# U21 X -> mark# X, mark# U11 X -> active# U11 mark X) (mark# U21 X -> mark# X, mark# U11 X -> mark# X) (mark# U21 X -> mark# X, mark# tt() -> active# tt()) (mark# U21 X -> mark# X, mark# zeros() -> active# zeros()) (mark# U21 X -> mark# X, mark# 0() -> active# 0()) (mark# U21 X -> mark# X, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# U21 X -> mark# X, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# U21 X -> mark# X, mark# cons(X1, X2) -> mark# X1) (mark# U42 X -> mark# X, mark# nil() -> 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(mark# U31 X -> mark# X, mark# U31 X -> U31# mark X) (mark# U31 X -> mark# X, mark# U42 X -> mark# X) (mark# U31 X -> mark# X, mark# U42 X -> active# U42 mark X) (mark# U31 X -> mark# X, mark# U42 X -> U42# mark X) (mark# U31 X -> mark# X, mark# isNatIList X -> active# isNatIList X) (mark# U31 X -> mark# X, mark# U41(X1, X2) -> mark# X1) (mark# U31 X -> mark# X, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# U31 X -> mark# X, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# U31 X -> mark# X, mark# U52 X -> mark# X) (mark# U31 X -> mark# X, mark# U52 X -> active# U52 mark X) (mark# U31 X -> mark# X, mark# U52 X -> U52# mark X) (mark# U31 X -> mark# X, mark# isNatList X -> active# isNatList X) (mark# U31 X -> mark# X, mark# U51(X1, X2) -> mark# X1) (mark# U31 X -> mark# X, mark# U51(X1, X2) -> active# U51(mark X1, X2)) (mark# U31 X -> mark# X, mark# U51(X1, X2) -> U51#(mark X1, X2)) (mark# U31 X -> mark# X, mark# U62(X1, X2) -> mark# X1) (mark# U31 X -> mark# X, mark# U62(X1, X2) -> active# U62(mark X1, X2)) (mark# U31 X -> mark# X, mark# U62(X1, X2) -> U62#(mark X1, X2)) (mark# U31 X -> mark# X, mark# isNat X -> active# isNat X) (mark# U31 X -> mark# X, mark# U61(X1, X2, X3) -> mark# X1) (mark# U31 X -> mark# X, mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3)) (mark# U31 X -> mark# X, mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3)) (mark# U31 X -> mark# X, mark# s X -> mark# X) (mark# U31 X -> mark# X, mark# s X -> active# s mark X) (mark# U31 X -> mark# X, mark# s X -> s# mark X) (mark# U31 X -> mark# X, mark# length X -> mark# X) (mark# U31 X -> mark# X, mark# length X -> active# length mark X) (mark# U31 X -> mark# X, mark# length X -> length# mark X) (mark# U31 X -> mark# X, mark# nil() -> active# nil()) (mark# U11 X -> mark# X, mark# cons(X1, X2) -> mark# X1) (mark# U11 X -> mark# X, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# U11 X -> mark# X, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# U11 X -> mark# X, mark# 0() -> active# 0()) (mark# U11 X -> mark# X, mark# zeros() -> active# zeros()) (mark# U11 X -> mark# X, mark# tt() -> active# tt()) (mark# U11 X -> mark# X, mark# U11 X -> mark# X) (mark# U11 X -> mark# X, mark# U11 X -> active# U11 mark X) (mark# U11 X -> mark# X, mark# U11 X -> U11# mark X) (mark# U11 X -> mark# X, mark# U21 X -> mark# X) (mark# U11 X -> mark# X, mark# U21 X -> active# U21 mark X) (mark# U11 X -> mark# X, mark# U21 X -> U21# mark X) (mark# U11 X -> mark# X, mark# U31 X -> mark# X) (mark# U11 X -> mark# X, mark# U31 X -> active# U31 mark X) (mark# U11 X -> mark# X, mark# U31 X -> U31# mark X) (mark# U11 X -> mark# X, mark# U42 X -> mark# X) (mark# U11 X -> mark# X, mark# U42 X -> active# U42 mark X) (mark# U11 X -> mark# X, mark# U42 X -> U42# mark X) (mark# U11 X -> mark# X, mark# isNatIList X -> active# isNatIList X) (mark# U11 X -> mark# X, mark# U41(X1, X2) -> mark# X1) (mark# U11 X -> mark# X, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# U11 X -> mark# X, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# U11 X -> mark# X, mark# U52 X -> mark# X) (mark# U11 X -> mark# X, mark# U52 X -> active# U52 mark X) (mark# U11 X -> mark# X, mark# U52 X -> U52# mark X) (mark# U11 X -> mark# X, mark# isNatList X -> active# isNatList X) (mark# U11 X -> mark# X, mark# U51(X1, X2) -> mark# X1) (mark# U11 X -> mark# X, mark# U51(X1, X2) -> active# U51(mark X1, X2)) (mark# U11 X -> mark# X, mark# U51(X1, X2) -> U51#(mark X1, X2)) (mark# U11 X -> mark# X, mark# U62(X1, X2) -> mark# X1) (mark# U11 X -> mark# X, mark# U62(X1, X2) -> active# U62(mark X1, X2)) (mark# U11 X -> mark# X, mark# U62(X1, X2) -> U62#(mark X1, X2)) (mark# U11 X -> mark# X, mark# isNat X -> active# isNat X) (mark# U11 X -> mark# X, mark# U61(X1, X2, X3) -> mark# X1) (mark# U11 X -> mark# X, mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3)) (mark# U11 X -> mark# X, mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3)) (mark# U11 X -> mark# X, mark# s X -> mark# X) (mark# U11 X -> mark# X, mark# s X -> active# s mark X) (mark# U11 X -> mark# X, mark# s X -> s# mark X) (mark# U11 X -> mark# X, mark# length X -> mark# X) (mark# U11 X -> mark# X, mark# length X -> active# length mark X) (mark# U11 X -> mark# X, mark# length X -> length# mark X) (mark# U11 X -> mark# X, mark# nil() -> active# nil()) (active# isNatList cons(V1, V2) -> mark# U51(isNat V1, V2), mark# U51(X1, X2) -> mark# X1) (active# isNatList cons(V1, V2) -> mark# U51(isNat V1, V2), mark# U51(X1, X2) -> active# U51(mark X1, X2)) (active# isNatList cons(V1, V2) -> mark# U51(isNat V1, V2), mark# U51(X1, X2) -> U51#(mark X1, X2)) (mark# U62(X1, X2) -> active# U62(mark X1, X2), active# U62(tt(), L) -> mark# s length L) (mark# U62(X1, X2) -> active# U62(mark X1, X2), active# U62(tt(), L) -> s# length L) (mark# U62(X1, X2) -> active# U62(mark X1, X2), active# U62(tt(), L) -> length# L) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U41(tt(), V2) -> mark# U42 isNatIList V2) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U41(tt(), V2) -> U42# isNatIList V2) (mark# U41(X1, X2) -> active# U41(mark X1, X2), active# U41(tt(), V2) -> isNatIList# V2) (active# U61(tt(), L, N) -> U62#(isNat N, L), U62#(X1, mark X2) -> U62#(X1, X2)) (active# U61(tt(), L, N) -> U62#(isNat N, L), U62#(X1, active X2) -> U62#(X1, X2)) (active# U62(tt(), L) -> length# L, length# mark X -> length# X) (active# U62(tt(), L) -> length# L, length# active X -> length# X) (active# isNat s V1 -> mark# U21 isNat V1, mark# U21 X -> mark# X) (active# isNat s V1 -> mark# U21 isNat V1, mark# U21 X -> active# U21 mark X) (active# isNat s V1 -> mark# U21 isNat V1, mark# U21 X -> U21# mark X) (active# U51(tt(), V2) -> mark# U52 isNatList V2, mark# U52 X -> mark# X) (active# U51(tt(), V2) -> mark# U52 isNatList V2, mark# U52 X -> active# U52 mark X) (active# U51(tt(), V2) -> mark# U52 isNatList V2, mark# U52 X -> U52# mark X) (active# isNatIList V -> mark# U31 isNatList V, mark# U31 X -> mark# X) (active# isNatIList V -> mark# U31 isNatList V, mark# U31 X -> active# U31 mark X) (active# isNatIList V -> mark# U31 isNatList V, mark# U31 X -> U31# mark X) (mark# U42 X -> active# U42 mark X, active# U42 tt() -> mark# tt()) (mark# U21 X -> active# U21 mark X, active# U21 tt() -> mark# tt()) (active# isNatList cons(V1, V2) -> U51#(isNat V1, V2), U51#(X1, mark X2) -> U51#(X1, X2)) (active# isNatList cons(V1, V2) -> U51#(isNat V1, V2), U51#(X1, active X2) -> U51#(X1, X2)) (active# isNat length V1 -> isNatList# V1, isNatList# mark X -> isNatList# X) (active# isNat length V1 -> isNatList# V1, isNatList# active X -> isNatList# X) (active# isNatList cons(V1, V2) -> isNat# V1, isNat# mark X -> isNat# X) (active# isNatList cons(V1, V2) -> isNat# V1, isNat# active X -> isNat# X) (U61#(active X1, X2, X3) -> U61#(X1, X2, X3), U61#(X1, X2, mark X3) -> U61#(X1, X2, X3)) (U61#(active X1, X2, X3) -> U61#(X1, X2, X3), U61#(X1, X2, active X3) -> U61#(X1, X2, X3)) (U61#(active X1, X2, X3) -> U61#(X1, X2, X3), U61#(X1, mark X2, X3) -> U61#(X1, X2, X3)) (U61#(active X1, X2, X3) -> U61#(X1, X2, X3), U61#(X1, active X2, X3) -> U61#(X1, X2, X3)) (U61#(active X1, X2, X3) -> U61#(X1, X2, X3), U61#(mark X1, X2, X3) -> U61#(X1, X2, X3)) (U61#(active X1, X2, X3) -> U61#(X1, X2, X3), U61#(active X1, X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, active X2, X3) -> U61#(X1, X2, X3), U61#(X1, X2, mark X3) -> U61#(X1, X2, X3)) (U61#(X1, active X2, X3) -> U61#(X1, X2, X3), U61#(X1, X2, active X3) -> U61#(X1, X2, X3)) (U61#(X1, active X2, X3) -> U61#(X1, X2, X3), U61#(X1, mark X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, active X2, X3) -> U61#(X1, X2, X3), U61#(X1, active X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, active X2, X3) -> U61#(X1, X2, X3), U61#(mark X1, X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, active X2, X3) -> U61#(X1, X2, X3), U61#(active X1, X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, X2, active X3) -> U61#(X1, X2, X3), U61#(X1, X2, mark X3) -> U61#(X1, X2, X3)) (U61#(X1, X2, active X3) -> U61#(X1, X2, X3), U61#(X1, X2, active X3) -> U61#(X1, X2, X3)) (U61#(X1, X2, active X3) -> U61#(X1, X2, X3), U61#(X1, mark X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, X2, active X3) -> U61#(X1, X2, X3), U61#(X1, active X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, X2, active X3) -> U61#(X1, X2, X3), U61#(mark X1, X2, X3) -> U61#(X1, X2, X3)) (U61#(X1, X2, active X3) -> U61#(X1, X2, X3), U61#(active X1, X2, X3) -> U61#(X1, X2, X3)) (mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3), U61#(X1, X2, mark X3) -> U61#(X1, X2, X3)) (mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3), U61#(X1, X2, active X3) -> U61#(X1, X2, X3)) (mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3), U61#(X1, mark X2, X3) -> U61#(X1, X2, X3)) (mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3), U61#(X1, active X2, X3) -> U61#(X1, X2, X3)) (mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3), U61#(mark X1, X2, X3) -> U61#(X1, X2, X3)) (mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3), U61#(active X1, X2, X3) -> U61#(X1, X2, X3)) (active# length nil() -> mark# 0(), mark# 0() -> active# 0()) (active# isNatList nil() -> mark# tt(), mark# tt() -> active# tt()) (active# isNatIList zeros() -> mark# tt(), mark# tt() -> active# tt()) (active# U31 tt() -> mark# tt(), mark# tt() -> active# tt()) (active# U11 tt() -> mark# tt(), mark# tt() -> active# tt()) (mark# U62(X1, X2) -> mark# X1, mark# cons(X1, X2) -> mark# X1) (mark# U62(X1, X2) -> mark# X1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# U62(X1, X2) -> mark# X1, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# U62(X1, X2) -> mark# X1, mark# 0() -> active# 0()) (mark# U62(X1, X2) -> mark# X1, mark# zeros() -> active# zeros()) (mark# U62(X1, X2) -> mark# X1, mark# tt() -> active# tt()) (mark# U62(X1, X2) -> mark# X1, mark# U11 X -> mark# X) (mark# U62(X1, X2) -> mark# X1, mark# U11 X -> active# U11 mark X) (mark# U62(X1, X2) -> mark# X1, mark# U11 X -> U11# mark X) (mark# U62(X1, X2) -> mark# X1, mark# U21 X -> mark# X) (mark# U62(X1, X2) -> mark# X1, mark# U21 X -> active# U21 mark X) (mark# U62(X1, X2) -> mark# X1, mark# U21 X -> U21# mark X) (mark# U62(X1, X2) -> mark# X1, mark# U31 X -> mark# X) (mark# U62(X1, X2) -> mark# X1, mark# U31 X -> active# U31 mark X) (mark# U62(X1, X2) -> mark# X1, mark# U31 X -> U31# mark X) (mark# U62(X1, X2) -> mark# X1, mark# U42 X -> mark# X) (mark# U62(X1, X2) -> mark# X1, mark# U42 X -> active# U42 mark X) (mark# U62(X1, X2) -> mark# X1, mark# U42 X -> U42# mark X) (mark# U62(X1, X2) -> mark# X1, mark# isNatIList X -> active# isNatIList X) (mark# U62(X1, X2) -> mark# X1, mark# U41(X1, X2) -> mark# X1) (mark# U62(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# U62(X1, X2) -> mark# X1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# U62(X1, X2) -> mark# X1, mark# U52 X -> mark# X) (mark# U62(X1, X2) -> mark# X1, mark# U52 X -> active# U52 mark X) (mark# U62(X1, X2) -> mark# X1, mark# U52 X -> U52# mark X) (mark# U62(X1, X2) -> mark# X1, mark# isNatList X -> active# isNatList X) (mark# U62(X1, X2) -> mark# X1, mark# U51(X1, X2) -> mark# X1) (mark# U62(X1, X2) -> mark# X1, mark# U51(X1, X2) -> active# U51(mark X1, X2)) (mark# U62(X1, X2) -> mark# X1, mark# U51(X1, X2) -> U51#(mark X1, X2)) (mark# U62(X1, X2) -> mark# X1, mark# U62(X1, X2) -> mark# X1) (mark# U62(X1, X2) -> mark# X1, mark# U62(X1, X2) -> active# U62(mark X1, X2)) (mark# U62(X1, X2) -> mark# X1, mark# U62(X1, X2) -> U62#(mark X1, X2)) (mark# U62(X1, X2) -> mark# X1, mark# isNat X -> active# isNat X) (mark# U62(X1, X2) -> mark# X1, mark# U61(X1, X2, X3) -> mark# X1) (mark# U62(X1, X2) -> mark# X1, mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3)) (mark# U62(X1, X2) -> mark# X1, mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3)) (mark# U62(X1, X2) -> mark# X1, mark# s X -> mark# X) (mark# U62(X1, X2) -> mark# X1, mark# s X -> active# s mark X) (mark# U62(X1, X2) -> mark# X1, mark# s X -> s# mark X) (mark# U62(X1, X2) -> mark# X1, mark# length X -> mark# X) (mark# U62(X1, X2) -> mark# X1, mark# length X -> active# length mark X) (mark# U62(X1, X2) -> mark# X1, mark# length X -> length# mark X) (mark# U62(X1, X2) -> mark# X1, mark# nil() -> active# nil()) (mark# U41(X1, X2) -> mark# X1, mark# cons(X1, X2) -> mark# X1) (mark# U41(X1, X2) -> mark# X1, mark# cons(X1, X2) -> cons#(mark X1, X2)) (mark# U41(X1, X2) -> mark# X1, mark# cons(X1, X2) -> active# cons(mark X1, X2)) (mark# U41(X1, X2) -> mark# X1, mark# 0() -> active# 0()) (mark# U41(X1, X2) -> mark# X1, mark# zeros() -> active# zeros()) (mark# U41(X1, X2) -> mark# X1, mark# tt() -> active# tt()) (mark# U41(X1, X2) -> mark# X1, mark# U11 X -> mark# X) (mark# U41(X1, X2) -> mark# X1, mark# U11 X -> active# U11 mark X) (mark# U41(X1, X2) -> mark# X1, mark# U11 X -> U11# mark X) (mark# U41(X1, X2) -> mark# X1, mark# U21 X -> mark# X) (mark# U41(X1, X2) -> mark# X1, mark# U21 X -> active# U21 mark X) (mark# U41(X1, X2) -> mark# X1, mark# U21 X -> U21# mark X) (mark# U41(X1, X2) -> mark# X1, mark# U31 X -> mark# X) (mark# U41(X1, X2) -> mark# X1, mark# U31 X -> active# U31 mark X) (mark# U41(X1, X2) -> mark# X1, mark# U31 X -> U31# mark X) (mark# U41(X1, X2) -> mark# X1, mark# U42 X -> mark# X) (mark# U41(X1, X2) -> mark# X1, mark# U42 X -> active# U42 mark X) (mark# U41(X1, X2) -> mark# X1, mark# U42 X -> U42# mark X) (mark# U41(X1, X2) -> mark# X1, mark# isNatIList X -> active# isNatIList X) (mark# U41(X1, X2) -> mark# X1, mark# U41(X1, X2) -> mark# X1) (mark# U41(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2)) (mark# U41(X1, X2) -> mark# X1, mark# U41(X1, X2) -> U41#(mark X1, X2)) (mark# U41(X1, X2) -> mark# X1, mark# U52 X -> mark# X) (mark# U41(X1, X2) -> mark# X1, mark# U52 X -> active# U52 mark X) (mark# U41(X1, X2) -> mark# X1, mark# U52 X -> U52# mark X) (mark# U41(X1, X2) -> mark# X1, mark# isNatList X -> active# isNatList X) (mark# U41(X1, X2) -> mark# X1, mark# U51(X1, X2) -> mark# X1) (mark# U41(X1, X2) -> mark# X1, mark# U51(X1, X2) -> active# U51(mark X1, X2)) (mark# U41(X1, X2) -> mark# X1, mark# U51(X1, X2) -> U51#(mark X1, X2)) (mark# U41(X1, X2) -> mark# X1, mark# U62(X1, X2) -> mark# X1) (mark# U41(X1, X2) -> mark# X1, mark# U62(X1, X2) -> active# U62(mark X1, X2)) (mark# U41(X1, X2) -> mark# X1, mark# U62(X1, X2) -> U62#(mark X1, X2)) (mark# U41(X1, X2) -> mark# X1, mark# isNat X -> active# isNat X) (mark# U41(X1, X2) -> mark# X1, mark# U61(X1, X2, X3) -> mark# X1) (mark# U41(X1, X2) -> mark# X1, mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3)) (mark# U41(X1, X2) -> mark# X1, mark# U61(X1, X2, X3) -> U61#(mark X1, X2, X3)) (mark# U41(X1, X2) -> mark# X1, mark# s X -> mark# X) (mark# U41(X1, X2) -> mark# X1, mark# s X -> active# s mark X) (mark# U41(X1, X2) -> mark# X1, mark# s X -> s# mark X) (mark# U41(X1, X2) -> mark# X1, mark# length X -> mark# X) (mark# U41(X1, X2) -> mark# X1, mark# length X -> active# length mark X) (mark# U41(X1, X2) -> mark# X1, mark# length X -> length# mark X) (mark# U41(X1, X2) -> mark# X1, mark# nil() -> active# nil()) (mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3), active# U61(tt(), L, N) -> mark# U62(isNat N, L)) (mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3), active# U61(tt(), L, N) -> U62#(isNat N, L)) (mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3), active# U61(tt(), L, N) -> isNat# N) (U62#(mark X1, X2) -> U62#(X1, X2), U62#(X1, mark X2) -> U62#(X1, X2)) (U62#(mark X1, X2) -> U62#(X1, X2), U62#(X1, active X2) -> U62#(X1, X2)) (U62#(mark X1, X2) -> U62#(X1, X2), U62#(mark X1, X2) -> U62#(X1, X2)) (U62#(mark X1, X2) -> U62#(X1, X2), U62#(active X1, X2) -> U62#(X1, X2)) (U62#(X1, mark X2) -> U62#(X1, X2), U62#(X1, mark X2) -> U62#(X1, X2)) (U62#(X1, mark X2) -> U62#(X1, X2), U62#(X1, active X2) -> U62#(X1, X2)) (U62#(X1, mark X2) -> U62#(X1, X2), U62#(mark X1, X2) -> U62#(X1, X2)) (U62#(X1, mark X2) -> U62#(X1, X2), U62#(active X1, X2) -> U62#(X1, X2)) (U51#(mark X1, X2) -> U51#(X1, X2), U51#(X1, mark X2) -> U51#(X1, X2)) (U51#(mark X1, X2) -> U51#(X1, X2), U51#(X1, active X2) -> U51#(X1, X2)) (U51#(mark X1, X2) -> U51#(X1, X2), U51#(mark X1, X2) -> U51#(X1, X2)) (U51#(mark X1, X2) -> U51#(X1, X2), U51#(active X1, X2) -> U51#(X1, X2)) (U51#(X1, mark X2) -> U51#(X1, X2), U51#(X1, mark X2) -> U51#(X1, X2)) (U51#(X1, mark X2) -> U51#(X1, X2), U51#(X1, active X2) -> U51#(X1, X2)) (U51#(X1, mark X2) -> U51#(X1, X2), U51#(mark X1, X2) -> U51#(X1, X2)) (U51#(X1, mark X2) -> U51#(X1, X2), U51#(active X1, X2) -> U51#(X1, X2)) (U41#(mark X1, X2) -> U41#(X1, X2), U41#(X1, mark X2) -> U41#(X1, X2)) (U41#(mark X1, X2) -> U41#(X1, X2), U41#(X1, active X2) -> U41#(X1, X2)) (U41#(mark X1, X2) -> U41#(X1, X2), U41#(mark X1, X2) -> U41#(X1, X2)) (U41#(mark X1, X2) -> U41#(X1, X2), U41#(active X1, X2) -> U41#(X1, X2)) (U41#(X1, mark X2) -> U41#(X1, X2), U41#(X1, mark X2) -> U41#(X1, X2)) (U41#(X1, mark X2) -> U41#(X1, X2), U41#(X1, active X2) -> U41#(X1, X2)) (U41#(X1, mark X2) -> U41#(X1, X2), U41#(mark X1, X2) -> U41#(X1, X2)) (U41#(X1, mark X2) -> U41#(X1, X2), U41#(active X1, X2) -> U41#(X1, X2)) (cons#(mark X1, X2) -> cons#(X1, X2), cons#(X1, mark X2) -> cons#(X1, X2)) (cons#(mark X1, X2) -> cons#(X1, X2), cons#(X1, active X2) -> cons#(X1, X2)) (cons#(mark X1, X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2)) (cons#(mark X1, X2) -> cons#(X1, X2), cons#(active X1, X2) -> cons#(X1, X2)) (cons#(X1, mark X2) -> cons#(X1, X2), cons#(X1, mark X2) -> cons#(X1, X2)) (cons#(X1, mark X2) -> cons#(X1, X2), cons#(X1, active X2) -> cons#(X1, X2)) (cons#(X1, mark X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2)) (cons#(X1, mark X2) -> cons#(X1, X2), cons#(active X1, X2) -> cons#(X1, X2)) (active# U41(tt(), V2) -> isNatIList# V2, isNatIList# mark X -> isNatIList# X) (active# U41(tt(), V2) -> isNatIList# V2, isNatIList# active X -> isNatIList# X) (mark# s X -> s# mark X, s# mark X -> s# X) (mark# s X -> s# mark X, s# active X -> s# X) (mark# isNatList X -> active# isNatList X, active# isNatList cons(V1, V2) -> mark# U51(isNat V1, V2)) (mark# isNatList X -> active# isNatList X, active# isNatList cons(V1, V2) -> U51#(isNat V1, V2)) (mark# isNatList X -> active# isNatList X, active# isNatList cons(V1, V2) -> isNat# V1) (mark# isNatList X -> active# isNatList X, active# isNatList nil() -> mark# tt()) (mark# isNatIList X -> active# isNatIList X, active# isNatIList V -> mark# U31 isNatList V) (mark# isNatIList X -> active# isNatIList X, active# isNatIList V -> U31# isNatList V) (mark# isNatIList X -> active# isNatIList X, active# isNatIList V -> isNatList# V) (mark# isNatIList X -> active# isNatIList X, active# isNatIList cons(V1, V2) -> mark# U41(isNat V1, V2)) (mark# isNatIList X -> active# isNatIList X, active# isNatIList cons(V1, V2) -> U41#(isNat V1, V2)) (mark# isNatIList X -> active# isNatIList X, active# isNatIList cons(V1, V2) -> isNat# V1) (mark# isNatIList X -> active# isNatIList X, active# isNatIList zeros() -> mark# tt()) (mark# U31 X -> U31# mark X, U31# mark X -> U31# X) (mark# U31 X -> U31# mark X, U31# active X -> U31# X) (mark# U11 X -> U11# mark X, U11# mark X -> U11# X) (mark# U11 X -> U11# mark X, U11# active X -> U11# X) (mark# U51(X1, X2) -> U51#(mark X1, X2), U51#(X1, mark X2) -> U51#(X1, X2)) (mark# U51(X1, X2) -> U51#(mark X1, X2), U51#(X1, active X2) -> U51#(X1, X2)) (mark# U51(X1, X2) -> U51#(mark X1, X2), U51#(mark X1, X2) -> U51#(X1, X2)) (mark# U51(X1, X2) -> U51#(mark X1, X2), U51#(active X1, X2) -> U51#(X1, X2)) (mark# cons(X1, X2) -> cons#(mark X1, X2), cons#(X1, mark X2) -> cons#(X1, X2)) (mark# cons(X1, X2) -> cons#(mark X1, X2), cons#(X1, active X2) -> cons#(X1, X2)) (mark# cons(X1, X2) -> cons#(mark X1, X2), cons#(mark X1, X2) -> cons#(X1, X2)) (mark# cons(X1, X2) -> cons#(mark X1, X2), cons#(active X1, X2) -> cons#(X1, X2)) } STATUS: arrows: 0.949295 SCCS (16): Scc: { mark# cons(X1, X2) -> mark# X1, mark# zeros() -> active# zeros(), mark# U11 X -> mark# X, mark# U21 X -> mark# X, mark# U31 X -> mark# X, mark# U42 X -> mark# X, mark# isNatIList X -> active# isNatIList X, mark# U41(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2), mark# U52 X -> mark# X, mark# isNatList X -> active# isNatList X, mark# U51(X1, X2) -> mark# X1, mark# U51(X1, X2) -> active# U51(mark X1, X2), mark# U62(X1, X2) -> mark# X1, mark# U62(X1, X2) -> active# U62(mark X1, X2), mark# isNat X -> active# isNat X, mark# U61(X1, X2, X3) -> mark# X1, mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3), mark# s X -> mark# X, mark# length X -> mark# X, mark# length X -> active# length mark X, active# zeros() -> mark# cons(0(), zeros()), active# isNatIList V -> mark# U31 isNatList V, active# isNatIList cons(V1, V2) -> mark# U41(isNat V1, V2), active# U41(tt(), V2) -> mark# U42 isNatIList V2, active# isNatList cons(V1, V2) -> mark# U51(isNat V1, V2), active# U51(tt(), V2) -> mark# U52 isNatList V2, active# U62(tt(), L) -> mark# s length L, active# isNat s V1 -> mark# U21 isNat V1, active# isNat length V1 -> mark# U11 isNatList V1, active# U61(tt(), L, N) -> mark# U62(isNat N, L), active# length cons(N, L) -> mark# U61(isNatList L, L, N)} Scc: { length# mark X -> length# X, length# active X -> length# X} Scc: { s# mark X -> s# X, s# active X -> s# X} Scc: { U61#(X1, X2, mark X3) -> U61#(X1, X2, X3), U61#(X1, X2, active X3) -> U61#(X1, X2, X3), U61#(X1, mark X2, X3) -> U61#(X1, X2, X3), U61#(X1, active X2, X3) -> U61#(X1, X2, X3), U61#(mark X1, X2, X3) -> U61#(X1, X2, X3), U61#(active X1, X2, X3) -> U61#(X1, X2, X3)} Scc: { isNat# mark X -> isNat# X, isNat# active X -> isNat# X} Scc: { isNatList# mark X -> isNatList# X, isNatList# active X -> isNatList# X} Scc: { U52# mark X -> U52# X, U52# active X -> U52# X} Scc: { isNatIList# mark X -> isNatIList# X, isNatIList# active X -> isNatIList# X} Scc: { U42# mark X -> U42# X, U42# active X -> U42# X} Scc: { U31# mark X -> U31# X, U31# active X -> U31# X} Scc: { U21# mark X -> U21# X, U21# active X -> U21# X} Scc: { U11# mark X -> U11# X, U11# active X -> U11# X} Scc: { U62#(X1, mark X2) -> U62#(X1, X2), U62#(X1, active X2) -> U62#(X1, X2), U62#(mark X1, X2) -> U62#(X1, X2), U62#(active X1, X2) -> U62#(X1, X2)} Scc: { U51#(X1, mark X2) -> U51#(X1, X2), U51#(X1, active X2) -> U51#(X1, X2), U51#(mark X1, X2) -> U51#(X1, X2), U51#(active X1, X2) -> U51#(X1, X2)} Scc: { U41#(X1, mark X2) -> U41#(X1, X2), U41#(X1, active X2) -> U41#(X1, X2), U41#(mark X1, X2) -> U41#(X1, X2), U41#(active X1, X2) -> U41#(X1, X2)} Scc: { cons#(X1, mark X2) -> cons#(X1, X2), cons#(X1, active X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2), cons#(active X1, X2) -> cons#(X1, X2)} SCC (32): Strict: { mark# cons(X1, X2) -> mark# X1, mark# zeros() -> active# zeros(), mark# U11 X -> mark# X, mark# U21 X -> mark# X, mark# U31 X -> mark# X, mark# U42 X -> mark# X, mark# isNatIList X -> active# isNatIList X, mark# U41(X1, X2) -> mark# X1, mark# U41(X1, X2) -> active# U41(mark X1, X2), mark# U52 X -> mark# X, mark# isNatList X -> active# isNatList X, mark# U51(X1, X2) -> mark# X1, mark# U51(X1, X2) -> active# U51(mark X1, X2), mark# U62(X1, X2) -> mark# X1, mark# U62(X1, X2) -> active# U62(mark X1, X2), mark# isNat X -> active# isNat X, mark# U61(X1, X2, X3) -> mark# X1, mark# U61(X1, X2, X3) -> active# U61(mark X1, X2, X3), mark# s X -> mark# X, mark# length X -> mark# X, mark# length X -> active# length mark X, active# zeros() -> mark# cons(0(), zeros()), active# isNatIList V -> mark# U31 isNatList V, active# isNatIList cons(V1, V2) -> mark# U41(isNat V1, V2), active# U41(tt(), V2) -> mark# U42 isNatIList V2, active# isNatList cons(V1, V2) -> mark# U51(isNat V1, V2), active# U51(tt(), V2) -> mark# U52 isNatList V2, active# U62(tt(), L) -> mark# s length L, active# isNat s V1 -> mark# U21 isNat V1, active# isNat length V1 -> mark# U11 isNatList V1, active# U61(tt(), L, N) -> mark# U62(isNat N, L), active# length cons(N, L) -> mark# U61(isNatList L, L, N)} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (2): Strict: { length# mark X -> length# X, length# active X -> length# X} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (2): Strict: { s# mark X -> s# X, s# active X -> s# X} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (6): Strict: { U61#(X1, X2, mark X3) -> U61#(X1, X2, X3), U61#(X1, X2, active X3) -> U61#(X1, X2, X3), U61#(X1, mark X2, X3) -> U61#(X1, X2, X3), U61#(X1, active X2, X3) -> U61#(X1, X2, X3), U61#(mark X1, X2, X3) -> U61#(X1, X2, X3), U61#(active X1, X2, X3) -> U61#(X1, X2, X3)} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (2): Strict: { isNat# mark X -> isNat# X, isNat# active X -> isNat# X} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (2): Strict: { isNatList# mark X -> isNatList# X, isNatList# active X -> isNatList# X} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (2): Strict: { U52# mark X -> U52# X, U52# active X -> U52# X} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (2): Strict: { isNatIList# mark X -> isNatIList# X, isNatIList# active X -> isNatIList# X} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (2): Strict: { U42# mark X -> U42# X, U42# active X -> U42# X} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (2): Strict: { U31# mark X -> U31# X, U31# active X -> U31# X} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (2): Strict: { U21# mark X -> U21# X, U21# active X -> U21# X} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (2): Strict: { U11# mark X -> U11# X, U11# active X -> U11# X} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (4): Strict: { U62#(X1, mark X2) -> U62#(X1, X2), U62#(X1, active X2) -> U62#(X1, X2), U62#(mark X1, X2) -> U62#(X1, X2), U62#(active X1, X2) -> U62#(X1, X2)} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (4): Strict: { U51#(X1, mark X2) -> U51#(X1, X2), U51#(X1, active X2) -> U51#(X1, X2), U51#(mark X1, X2) -> U51#(X1, X2), U51#(active X1, X2) -> U51#(X1, X2)} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (4): Strict: { U41#(X1, mark X2) -> U41#(X1, X2), U41#(X1, active X2) -> U41#(X1, X2), U41#(mark X1, X2) -> U41#(X1, X2), U41#(active X1, X2) -> U41#(X1, X2)} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open SCC (4): Strict: { cons#(X1, mark X2) -> cons#(X1, X2), cons#(X1, active X2) -> cons#(X1, X2), cons#(mark X1, X2) -> cons#(X1, X2), cons#(active X1, X2) -> cons#(X1, X2)} Weak: { mark cons(X1, X2) -> active cons(mark X1, X2), mark 0() -> active 0(), mark zeros() -> active zeros(), mark tt() -> active tt(), mark U11 X -> active U11 mark X, mark U21 X -> active U21 mark X, mark U31 X -> active U31 mark X, mark U42 X -> active U42 mark X, mark isNatIList X -> active isNatIList X, mark U41(X1, X2) -> active U41(mark X1, X2), mark U52 X -> active U52 mark X, mark isNatList X -> active isNatList X, mark U51(X1, X2) -> active U51(mark X1, X2), mark U62(X1, X2) -> active U62(mark X1, X2), mark isNat X -> active isNat X, mark U61(X1, X2, X3) -> active U61(mark X1, X2, X3), mark s X -> active s mark X, mark length X -> active length mark X, mark nil() -> active nil(), cons(X1, mark X2) -> cons(X1, X2), cons(X1, active X2) -> cons(X1, X2), cons(mark X1, X2) -> cons(X1, X2), cons(active X1, X2) -> cons(X1, X2), active zeros() -> mark cons(0(), zeros()), active U11 tt() -> mark tt(), active U21 tt() -> mark tt(), active U31 tt() -> mark tt(), active U42 tt() -> mark tt(), active isNatIList V -> mark U31 isNatList V, active isNatIList cons(V1, V2) -> mark U41(isNat V1, V2), active isNatIList zeros() -> mark tt(), active U41(tt(), V2) -> mark U42 isNatIList V2, active U52 tt() -> mark tt(), active isNatList cons(V1, V2) -> mark U51(isNat V1, V2), active isNatList nil() -> mark tt(), active U51(tt(), V2) -> mark U52 isNatList V2, active U62(tt(), L) -> mark s length L, active isNat 0() -> mark tt(), active isNat s V1 -> mark U21 isNat V1, active isNat length V1 -> mark U11 isNatList V1, active U61(tt(), L, N) -> mark U62(isNat N, L), active length cons(N, L) -> mark U61(isNatList L, L, N), active length nil() -> mark 0(), U11 mark X -> U11 X, U11 active X -> U11 X, U21 mark X -> U21 X, U21 active X -> U21 X, U31 mark X -> U31 X, U31 active X -> U31 X, U42 mark X -> U42 X, U42 active X -> U42 X, isNatIList mark X -> isNatIList X, isNatIList active X -> isNatIList X, U41(X1, mark X2) -> U41(X1, X2), U41(X1, active X2) -> U41(X1, X2), U41(mark X1, X2) -> U41(X1, X2), U41(active X1, X2) -> U41(X1, X2), U52 mark X -> U52 X, U52 active X -> U52 X, isNatList mark X -> isNatList X, isNatList active X -> isNatList X, U51(X1, mark X2) -> U51(X1, X2), U51(X1, active X2) -> U51(X1, X2), U51(mark X1, X2) -> U51(X1, X2), U51(active X1, X2) -> U51(X1, X2), U62(X1, mark X2) -> U62(X1, X2), U62(X1, active X2) -> U62(X1, X2), U62(mark X1, X2) -> U62(X1, X2), U62(active X1, X2) -> U62(X1, X2), isNat mark X -> isNat X, isNat active X -> isNat X, U61(X1, X2, mark X3) -> U61(X1, X2, X3), U61(X1, X2, active X3) -> U61(X1, X2, X3), U61(X1, mark X2, X3) -> U61(X1, X2, X3), U61(X1, active X2, X3) -> U61(X1, X2, X3), U61(mark X1, X2, X3) -> U61(X1, X2, X3), U61(active X1, X2, X3) -> U61(X1, X2, X3), s mark X -> s X, s active X -> s X, length mark X -> length X, length active X -> length X} Open