MAYBE
0.00/0.02	 The problem does not contain well-formed TRSs:
0.00/0.02	   Strict Trs:
0.00/0.02	     { U11(tt()) -> s(length(L))
0.00/0.02	     , length(cons(N)) -> U11(and(isNatList()))
0.00/0.02	     , length(nil()) -> 0()
0.00/0.02	     , and(tt()) -> X
0.00/0.02	     , zeros() -> cons(0())
0.00/0.02	     , isNat() -> tt()
0.00/0.02	     , isNat() -> isNat()
0.00/0.02	     , isNat() -> isNatList()
0.00/0.02	     , isNatList() -> tt()
0.00/0.02	     , isNatList() -> and(isNat())
0.00/0.02	     , isNatIList() -> tt()
0.00/0.02	     , isNatIList() -> and(isNat())
0.00/0.02	     , isNatIList() -> isNatList() }
0.00/0.02	   StartTerms: basic terms
0.00/0.02	   Strategy: innermost
0.00/0.02	EOF