TIMEOUT

The TRS could not be proven terminating. The proof attempt took 60000 ms.

The following DP Processors were used


Problem 1 was processed with processor DependencyGraph (7088ms).
 | – Problem 2 remains open; application of the following processors failed [SubtermCriterion (2ms), DependencyGraph (4747ms), PolynomialLinearRange4iUR (timeout), DependencyGraph (4709ms), PolynomialLinearRange8NegiUR (timeout), DependencyGraph (timeout)].

The following open problems remain:



Open Dependency Pair Problem 2

Dependency Pairs

a__U11#(tt, V1, V2)a__isNat#(V1)a__U32#(tt, V2)a__isNat#(V2)
a__U71#(tt, M, N)mark#(N)a__U51#(tt, M, N)mark#(N)
a__U31#(tt, V1, V2)a__isNat#(V1)a__x#(N, s(M))a__and#(a__isNat(M), isNatKind(M))
a__and#(tt, X)mark#(X)a__plus#(N, 0)a__U41#(a__and(a__isNat(N), isNatKind(N)), N)
mark#(U41(X1, X2))a__U41#(mark(X1), X2)a__isNat#(x(V1, V2))a__isNatKind#(V1)
a__x#(N, 0)a__isNat#(N)mark#(s(X))mark#(X)
a__x#(N, s(M))a__and#(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N)))mark#(U32(X1, X2))a__U32#(mark(X1), X2)
a__isNat#(plus(V1, V2))a__U11#(a__and(a__isNatKind(V1), isNatKind(V2)), V1, V2)mark#(U12(X1, X2))mark#(X1)
a__U21#(tt, V1)a__isNat#(V1)a__plus#(N, s(M))a__and#(a__isNat(M), isNatKind(M))
mark#(U71(X1, X2, X3))mark#(X1)a__isNatKind#(x(V1, V2))a__isNatKind#(V1)
mark#(plus(X1, X2))a__plus#(mark(X1), mark(X2))a__U71#(tt, M, N)a__x#(mark(N), mark(M))
a__isNatKind#(plus(V1, V2))a__isNatKind#(V1)a__U11#(tt, V1, V2)a__U12#(a__isNat(V1), V2)
a__isNat#(s(V1))a__isNatKind#(V1)mark#(U31(X1, X2, X3))mark#(X1)
mark#(plus(X1, X2))mark#(X1)a__U71#(tt, M, N)a__plus#(a__x(mark(N), mark(M)), mark(N))
mark#(and(X1, X2))mark#(X1)mark#(x(X1, X2))mark#(X2)
mark#(U71(X1, X2, X3))a__U71#(mark(X1), X2, X3)mark#(and(X1, X2))a__and#(mark(X1), X2)
mark#(U12(X1, X2))a__U12#(mark(X1), X2)a__plus#(N, 0)a__isNat#(N)
mark#(U32(X1, X2))mark#(X1)mark#(U11(X1, X2, X3))a__U11#(mark(X1), X2, X3)
mark#(U11(X1, X2, X3))mark#(X1)a__U51#(tt, M, N)a__plus#(mark(N), mark(M))
a__isNatKind#(x(V1, V2))a__and#(a__isNatKind(V1), isNatKind(V2))mark#(isNat(X))a__isNat#(X)
mark#(x(X1, X2))a__x#(mark(X1), mark(X2))a__U12#(tt, V2)a__isNat#(V2)
mark#(U21(X1, X2))mark#(X1)a__plus#(N, 0)a__and#(a__isNat(N), isNatKind(N))
mark#(U33(X))mark#(X)a__isNatKind#(s(V1))a__isNatKind#(V1)
a__U41#(tt, N)mark#(N)a__U71#(tt, M, N)mark#(M)
mark#(U51(X1, X2, X3))mark#(X1)mark#(plus(X1, X2))mark#(X2)
a__isNat#(x(V1, V2))a__U31#(a__and(a__isNatKind(V1), isNatKind(V2)), V1, V2)a__isNatKind#(plus(V1, V2))a__and#(a__isNatKind(V1), isNatKind(V2))
a__plus#(N, s(M))a__isNat#(M)mark#(U41(X1, X2))mark#(X1)
a__isNat#(plus(V1, V2))a__and#(a__isNatKind(V1), isNatKind(V2))a__plus#(N, s(M))a__and#(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N)))
mark#(U61(X))mark#(X)mark#(U31(X1, X2, X3))a__U31#(mark(X1), X2, X3)
a__x#(N, 0)a__and#(a__isNat(N), isNatKind(N))a__x#(N, s(M))a__U71#(a__and(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N))), M, N)
a__U31#(tt, V1, V2)a__U32#(a__isNat(V1), V2)mark#(U51(X1, X2, X3))a__U51#(mark(X1), X2, X3)
a__x#(N, s(M))a__isNat#(M)mark#(U22(X))mark#(X)
a__isNat#(s(V1))a__U21#(a__isNatKind(V1), V1)mark#(U21(X1, X2))a__U21#(mark(X1), X2)
a__isNat#(plus(V1, V2))a__isNatKind#(V1)a__isNat#(x(V1, V2))a__and#(a__isNatKind(V1), isNatKind(V2))
mark#(isNatKind(X))a__isNatKind#(X)a__U51#(tt, M, N)mark#(M)
a__plus#(N, s(M))a__U51#(a__and(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N))), M, N)mark#(x(X1, X2))mark#(X1)
mark#(U13(X))mark#(X)

Rewrite Rules

a__U11(tt, V1, V2)a__U12(a__isNat(V1), V2)a__U12(tt, V2)a__U13(a__isNat(V2))
a__U13(tt)tta__U21(tt, V1)a__U22(a__isNat(V1))
a__U22(tt)tta__U31(tt, V1, V2)a__U32(a__isNat(V1), V2)
a__U32(tt, V2)a__U33(a__isNat(V2))a__U33(tt)tt
a__U41(tt, N)mark(N)a__U51(tt, M, N)s(a__plus(mark(N), mark(M)))
a__U61(tt)0a__U71(tt, M, N)a__plus(a__x(mark(N), mark(M)), mark(N))
a__and(tt, X)mark(X)a__isNat(0)tt
a__isNat(plus(V1, V2))a__U11(a__and(a__isNatKind(V1), isNatKind(V2)), V1, V2)a__isNat(s(V1))a__U21(a__isNatKind(V1), V1)
a__isNat(x(V1, V2))a__U31(a__and(a__isNatKind(V1), isNatKind(V2)), V1, V2)a__isNatKind(0)tt
a__isNatKind(plus(V1, V2))a__and(a__isNatKind(V1), isNatKind(V2))a__isNatKind(s(V1))a__isNatKind(V1)
a__isNatKind(x(V1, V2))a__and(a__isNatKind(V1), isNatKind(V2))a__plus(N, 0)a__U41(a__and(a__isNat(N), isNatKind(N)), N)
a__plus(N, s(M))a__U51(a__and(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N))), M, N)a__x(N, 0)a__U61(a__and(a__isNat(N), isNatKind(N)))
a__x(N, s(M))a__U71(a__and(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N))), M, N)mark(U11(X1, X2, X3))a__U11(mark(X1), X2, X3)
mark(U12(X1, X2))a__U12(mark(X1), X2)mark(isNat(X))a__isNat(X)
mark(U13(X))a__U13(mark(X))mark(U21(X1, X2))a__U21(mark(X1), X2)
mark(U22(X))a__U22(mark(X))mark(U31(X1, X2, X3))a__U31(mark(X1), X2, X3)
mark(U32(X1, X2))a__U32(mark(X1), X2)mark(U33(X))a__U33(mark(X))
mark(U41(X1, X2))a__U41(mark(X1), X2)mark(U51(X1, X2, X3))a__U51(mark(X1), X2, X3)
mark(plus(X1, X2))a__plus(mark(X1), mark(X2))mark(U61(X))a__U61(mark(X))
mark(U71(X1, X2, X3))a__U71(mark(X1), X2, X3)mark(x(X1, X2))a__x(mark(X1), mark(X2))
mark(and(X1, X2))a__and(mark(X1), X2)mark(isNatKind(X))a__isNatKind(X)
mark(tt)ttmark(s(X))s(mark(X))
mark(0)0a__U11(X1, X2, X3)U11(X1, X2, X3)
a__U12(X1, X2)U12(X1, X2)a__isNat(X)isNat(X)
a__U13(X)U13(X)a__U21(X1, X2)U21(X1, X2)
a__U22(X)U22(X)a__U31(X1, X2, X3)U31(X1, X2, X3)
a__U32(X1, X2)U32(X1, X2)a__U33(X)U33(X)
a__U41(X1, X2)U41(X1, X2)a__U51(X1, X2, X3)U51(X1, X2, X3)
a__plus(X1, X2)plus(X1, X2)a__U61(X)U61(X)
a__U71(X1, X2, X3)U71(X1, X2, X3)a__x(X1, X2)x(X1, X2)
a__and(X1, X2)and(X1, X2)a__isNatKind(X)isNatKind(X)

Original Signature

Termination of terms over the following signature is verified: a__U51, a__and, isNat, U61, U41, a__U41, a__U22, a__U71, U21, a__U21, U22, plus, isNatKind, a__plus, mark, U71, and, 0, U51, s, tt, a__isNat, a__U32, U11, a__U31, a__U13, U12, a__U12, U31, U13, a__U11, U32, a__U61, U33, a__x, a__U33, a__isNatKind, x


Problem 1: DependencyGraph



Dependency Pair Problem

Dependency Pairs

a__U11#(tt, V1, V2)a__isNat#(V1)a__U32#(tt, V2)a__isNat#(V2)
a__U71#(tt, M, N)mark#(N)a__U51#(tt, M, N)mark#(N)
a__U32#(tt, V2)a__U33#(a__isNat(V2))a__U31#(tt, V1, V2)a__isNat#(V1)
mark#(U13(X))a__U13#(mark(X))a__x#(N, s(M))a__and#(a__isNat(M), isNatKind(M))
a__and#(tt, X)mark#(X)mark#(U41(X1, X2))a__U41#(mark(X1), X2)
a__plus#(N, 0)a__U41#(a__and(a__isNat(N), isNatKind(N)), N)a__isNat#(x(V1, V2))a__isNatKind#(V1)
a__x#(N, 0)a__isNat#(N)mark#(s(X))mark#(X)
a__x#(N, s(M))a__and#(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N)))a__isNat#(plus(V1, V2))a__U11#(a__and(a__isNatKind(V1), isNatKind(V2)), V1, V2)
mark#(U32(X1, X2))a__U32#(mark(X1), X2)mark#(U12(X1, X2))mark#(X1)
a__U21#(tt, V1)a__isNat#(V1)a__plus#(N, s(M))a__and#(a__isNat(M), isNatKind(M))
mark#(U71(X1, X2, X3))mark#(X1)mark#(U33(X))a__U33#(mark(X))
a__isNatKind#(x(V1, V2))a__isNatKind#(V1)a__U12#(tt, V2)a__U13#(a__isNat(V2))
mark#(plus(X1, X2))a__plus#(mark(X1), mark(X2))a__U71#(tt, M, N)a__x#(mark(N), mark(M))
a__isNatKind#(plus(V1, V2))a__isNatKind#(V1)a__isNat#(s(V1))a__isNatKind#(V1)
a__U11#(tt, V1, V2)a__U12#(a__isNat(V1), V2)mark#(U31(X1, X2, X3))mark#(X1)
mark#(plus(X1, X2))mark#(X1)a__U71#(tt, M, N)a__plus#(a__x(mark(N), mark(M)), mark(N))
mark#(and(X1, X2))mark#(X1)mark#(x(X1, X2))mark#(X2)
mark#(U71(X1, X2, X3))a__U71#(mark(X1), X2, X3)mark#(and(X1, X2))a__and#(mark(X1), X2)
mark#(U12(X1, X2))a__U12#(mark(X1), X2)a__plus#(N, 0)a__isNat#(N)
mark#(U32(X1, X2))mark#(X1)mark#(U11(X1, X2, X3))a__U11#(mark(X1), X2, X3)
a__U51#(tt, M, N)a__plus#(mark(N), mark(M))mark#(U11(X1, X2, X3))mark#(X1)
a__isNatKind#(x(V1, V2))a__and#(a__isNatKind(V1), isNatKind(V2))mark#(isNat(X))a__isNat#(X)
mark#(x(X1, X2))a__x#(mark(X1), mark(X2))a__U12#(tt, V2)a__isNat#(V2)
mark#(U21(X1, X2))mark#(X1)mark#(U33(X))mark#(X)
a__plus#(N, 0)a__and#(a__isNat(N), isNatKind(N))a__isNatKind#(s(V1))a__isNatKind#(V1)
a__U41#(tt, N)mark#(N)a__U21#(tt, V1)a__U22#(a__isNat(V1))
a__U71#(tt, M, N)mark#(M)mark#(U51(X1, X2, X3))mark#(X1)
mark#(plus(X1, X2))mark#(X2)mark#(U22(X))a__U22#(mark(X))
a__x#(N, 0)a__U61#(a__and(a__isNat(N), isNatKind(N)))a__isNat#(x(V1, V2))a__U31#(a__and(a__isNatKind(V1), isNatKind(V2)), V1, V2)
a__plus#(N, s(M))a__isNat#(M)a__isNatKind#(plus(V1, V2))a__and#(a__isNatKind(V1), isNatKind(V2))
a__plus#(N, s(M))a__and#(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N)))a__isNat#(plus(V1, V2))a__and#(a__isNatKind(V1), isNatKind(V2))
mark#(U41(X1, X2))mark#(X1)mark#(U61(X))a__U61#(mark(X))
mark#(U61(X))mark#(X)mark#(U31(X1, X2, X3))a__U31#(mark(X1), X2, X3)
a__x#(N, 0)a__and#(a__isNat(N), isNatKind(N))a__x#(N, s(M))a__U71#(a__and(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N))), M, N)
a__U31#(tt, V1, V2)a__U32#(a__isNat(V1), V2)mark#(U51(X1, X2, X3))a__U51#(mark(X1), X2, X3)
a__x#(N, s(M))a__isNat#(M)mark#(U22(X))mark#(X)
a__isNat#(s(V1))a__U21#(a__isNatKind(V1), V1)mark#(U21(X1, X2))a__U21#(mark(X1), X2)
a__isNat#(plus(V1, V2))a__isNatKind#(V1)a__isNat#(x(V1, V2))a__and#(a__isNatKind(V1), isNatKind(V2))
mark#(isNatKind(X))a__isNatKind#(X)a__U51#(tt, M, N)mark#(M)
a__plus#(N, s(M))a__U51#(a__and(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N))), M, N)mark#(x(X1, X2))mark#(X1)
mark#(U13(X))mark#(X)

Rewrite Rules

a__U11(tt, V1, V2)a__U12(a__isNat(V1), V2)a__U12(tt, V2)a__U13(a__isNat(V2))
a__U13(tt)tta__U21(tt, V1)a__U22(a__isNat(V1))
a__U22(tt)tta__U31(tt, V1, V2)a__U32(a__isNat(V1), V2)
a__U32(tt, V2)a__U33(a__isNat(V2))a__U33(tt)tt
a__U41(tt, N)mark(N)a__U51(tt, M, N)s(a__plus(mark(N), mark(M)))
a__U61(tt)0a__U71(tt, M, N)a__plus(a__x(mark(N), mark(M)), mark(N))
a__and(tt, X)mark(X)a__isNat(0)tt
a__isNat(plus(V1, V2))a__U11(a__and(a__isNatKind(V1), isNatKind(V2)), V1, V2)a__isNat(s(V1))a__U21(a__isNatKind(V1), V1)
a__isNat(x(V1, V2))a__U31(a__and(a__isNatKind(V1), isNatKind(V2)), V1, V2)a__isNatKind(0)tt
a__isNatKind(plus(V1, V2))a__and(a__isNatKind(V1), isNatKind(V2))a__isNatKind(s(V1))a__isNatKind(V1)
a__isNatKind(x(V1, V2))a__and(a__isNatKind(V1), isNatKind(V2))a__plus(N, 0)a__U41(a__and(a__isNat(N), isNatKind(N)), N)
a__plus(N, s(M))a__U51(a__and(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N))), M, N)a__x(N, 0)a__U61(a__and(a__isNat(N), isNatKind(N)))
a__x(N, s(M))a__U71(a__and(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N))), M, N)mark(U11(X1, X2, X3))a__U11(mark(X1), X2, X3)
mark(U12(X1, X2))a__U12(mark(X1), X2)mark(isNat(X))a__isNat(X)
mark(U13(X))a__U13(mark(X))mark(U21(X1, X2))a__U21(mark(X1), X2)
mark(U22(X))a__U22(mark(X))mark(U31(X1, X2, X3))a__U31(mark(X1), X2, X3)
mark(U32(X1, X2))a__U32(mark(X1), X2)mark(U33(X))a__U33(mark(X))
mark(U41(X1, X2))a__U41(mark(X1), X2)mark(U51(X1, X2, X3))a__U51(mark(X1), X2, X3)
mark(plus(X1, X2))a__plus(mark(X1), mark(X2))mark(U61(X))a__U61(mark(X))
mark(U71(X1, X2, X3))a__U71(mark(X1), X2, X3)mark(x(X1, X2))a__x(mark(X1), mark(X2))
mark(and(X1, X2))a__and(mark(X1), X2)mark(isNatKind(X))a__isNatKind(X)
mark(tt)ttmark(s(X))s(mark(X))
mark(0)0a__U11(X1, X2, X3)U11(X1, X2, X3)
a__U12(X1, X2)U12(X1, X2)a__isNat(X)isNat(X)
a__U13(X)U13(X)a__U21(X1, X2)U21(X1, X2)
a__U22(X)U22(X)a__U31(X1, X2, X3)U31(X1, X2, X3)
a__U32(X1, X2)U32(X1, X2)a__U33(X)U33(X)
a__U41(X1, X2)U41(X1, X2)a__U51(X1, X2, X3)U51(X1, X2, X3)
a__plus(X1, X2)plus(X1, X2)a__U61(X)U61(X)
a__U71(X1, X2, X3)U71(X1, X2, X3)a__x(X1, X2)x(X1, X2)
a__and(X1, X2)and(X1, X2)a__isNatKind(X)isNatKind(X)

Original Signature

Termination of terms over the following signature is verified: a__U51, a__and, isNat, U61, U41, a__U41, a__U22, a__U71, a__U21, U21, U22, plus, isNatKind, a__plus, mark, U71, and, 0, U51, s, tt, a__isNat, a__U32, a__U13, U11, a__U31, a__U12, U12, a__U11, U13, U31, a__U61, U32, a__x, U33, x, a__isNatKind, a__U33

Strategy


The following SCCs where found

a__U32#(tt, V2) → a__isNat#(V2)a__U11#(tt, V1, V2) → a__isNat#(V1)
a__U71#(tt, M, N) → mark#(N)a__U51#(tt, M, N) → mark#(N)
a__U31#(tt, V1, V2) → a__isNat#(V1)a__x#(N, s(M)) → a__and#(a__isNat(M), isNatKind(M))
a__and#(tt, X) → mark#(X)mark#(U41(X1, X2)) → a__U41#(mark(X1), X2)
a__plus#(N, 0) → a__U41#(a__and(a__isNat(N), isNatKind(N)), N)a__isNat#(x(V1, V2)) → a__isNatKind#(V1)
mark#(s(X)) → mark#(X)a__x#(N, 0) → a__isNat#(N)
a__x#(N, s(M)) → a__and#(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N)))a__isNat#(plus(V1, V2)) → a__U11#(a__and(a__isNatKind(V1), isNatKind(V2)), V1, V2)
mark#(U32(X1, X2)) → a__U32#(mark(X1), X2)mark#(U12(X1, X2)) → mark#(X1)
a__U21#(tt, V1) → a__isNat#(V1)mark#(U71(X1, X2, X3)) → mark#(X1)
a__plus#(N, s(M)) → a__and#(a__isNat(M), isNatKind(M))mark#(plus(X1, X2)) → a__plus#(mark(X1), mark(X2))
a__isNatKind#(x(V1, V2)) → a__isNatKind#(V1)a__U71#(tt, M, N) → a__x#(mark(N), mark(M))
a__isNatKind#(plus(V1, V2)) → a__isNatKind#(V1)a__isNat#(s(V1)) → a__isNatKind#(V1)
a__U11#(tt, V1, V2) → a__U12#(a__isNat(V1), V2)mark#(U31(X1, X2, X3)) → mark#(X1)
a__U71#(tt, M, N) → a__plus#(a__x(mark(N), mark(M)), mark(N))mark#(plus(X1, X2)) → mark#(X1)
mark#(and(X1, X2)) → mark#(X1)mark#(x(X1, X2)) → mark#(X2)
mark#(U71(X1, X2, X3)) → a__U71#(mark(X1), X2, X3)mark#(and(X1, X2)) → a__and#(mark(X1), X2)
mark#(U12(X1, X2)) → a__U12#(mark(X1), X2)a__plus#(N, 0) → a__isNat#(N)
mark#(U32(X1, X2)) → mark#(X1)mark#(U11(X1, X2, X3)) → a__U11#(mark(X1), X2, X3)
a__U51#(tt, M, N) → a__plus#(mark(N), mark(M))mark#(U11(X1, X2, X3)) → mark#(X1)
a__isNatKind#(x(V1, V2)) → a__and#(a__isNatKind(V1), isNatKind(V2))mark#(isNat(X)) → a__isNat#(X)
mark#(x(X1, X2)) → a__x#(mark(X1), mark(X2))a__U12#(tt, V2) → a__isNat#(V2)
mark#(U21(X1, X2)) → mark#(X1)mark#(U33(X)) → mark#(X)
a__plus#(N, 0) → a__and#(a__isNat(N), isNatKind(N))a__isNatKind#(s(V1)) → a__isNatKind#(V1)
a__U41#(tt, N) → mark#(N)a__U71#(tt, M, N) → mark#(M)
mark#(U51(X1, X2, X3)) → mark#(X1)mark#(plus(X1, X2)) → mark#(X2)
a__isNat#(x(V1, V2)) → a__U31#(a__and(a__isNatKind(V1), isNatKind(V2)), V1, V2)a__plus#(N, s(M)) → a__isNat#(M)
a__isNatKind#(plus(V1, V2)) → a__and#(a__isNatKind(V1), isNatKind(V2))a__plus#(N, s(M)) → a__and#(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N)))
a__isNat#(plus(V1, V2)) → a__and#(a__isNatKind(V1), isNatKind(V2))mark#(U41(X1, X2)) → mark#(X1)
mark#(U61(X)) → mark#(X)mark#(U31(X1, X2, X3)) → a__U31#(mark(X1), X2, X3)
a__x#(N, 0) → a__and#(a__isNat(N), isNatKind(N))a__U31#(tt, V1, V2) → a__U32#(a__isNat(V1), V2)
a__x#(N, s(M)) → a__U71#(a__and(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N))), M, N)mark#(U51(X1, X2, X3)) → a__U51#(mark(X1), X2, X3)
mark#(U22(X)) → mark#(X)a__x#(N, s(M)) → a__isNat#(M)
a__isNat#(s(V1)) → a__U21#(a__isNatKind(V1), V1)mark#(U21(X1, X2)) → a__U21#(mark(X1), X2)
a__isNat#(plus(V1, V2)) → a__isNatKind#(V1)mark#(isNatKind(X)) → a__isNatKind#(X)
a__isNat#(x(V1, V2)) → a__and#(a__isNatKind(V1), isNatKind(V2))a__U51#(tt, M, N) → mark#(M)
a__plus#(N, s(M)) → a__U51#(a__and(a__and(a__isNat(M), isNatKind(M)), and(isNat(N), isNatKind(N))), M, N)mark#(x(X1, X2)) → mark#(X1)
mark#(U13(X)) → mark#(X)