2.39/0.95	NO
2.39/0.95	
2.39/0.95	Problem:
2.39/0.95	 strict:
2.39/0.95	  top(U(x,y)) -> top(check(D(x,y)))
2.39/0.95	  D(x,B()) -> U(x,B())
2.39/0.95	  F(x,U(O(y),z)) -> U(x,F(y,z))
2.39/0.95	  F(x,U(N(y),z)) -> U(x,F(y,z))
2.39/0.95	  D(O(x),F(y,z)) -> F(x,D(y,z))
2.39/0.95	  D(N(x),F(y,z)) -> F(x,D(y,z))
2.39/0.95	  F(x,U(E(),y)) -> U(x,F(E(),y))
2.39/0.95	  D(E(),F(x,y)) -> F(E(),D(x,y))
2.39/0.95	 weak:
2.39/0.95	  E() -> N(E())
2.39/0.95	  check(O(x)) -> O(x)
2.39/0.95	  check(U(x,y)) -> U(check(x),y)
2.39/0.95	  check(U(x,y)) -> U(x,check(y))
2.39/0.95	  check(D(x,y)) -> D(check(x),y)
2.39/0.95	  check(D(x,y)) -> D(x,check(y))
2.39/0.95	  check(F(x,y)) -> F(check(x),y)
2.39/0.95	  check(F(x,y)) -> F(x,check(y))
2.39/0.95	  check(O(x)) -> O(check(x))
2.39/0.95	  check(N(x)) -> N(check(x))
2.39/0.95	
2.39/0.95	Proof:
2.39/0.95	 Unfolding Processor:
2.39/0.95	  loop length: 3
2.39/0.95	  terms:
2.39/0.95	   top(U(x1510,B()))
2.39/0.95	   top(check(D(x1510,B())))
2.39/0.95	   top(D(check(x1510),B()))
2.39/0.95	  context: []
2.39/0.95	  substitution:
2.39/0.95	   x1510 -> check(x1510)
2.39/0.95	  Qed
2.39/0.96	EOF