def vars_list(self):
"""
Returns the list of independent variables in the CNF representation.
:return:the independent variables list in the CNF representation
"""
return Slist(_be.Be_Cnf_GetVarsList(self._ptr),
IntConversion(),
freeit=False)
def clauses_list(self):
"""
:return: a list of lists which contains the CNF-ed formula]
Each list in the list is a set of integers which represents a single clause.
Any integer value depends on the variable name and the time which the variable
is considered in, whereas the integer sign is the variable polarity in
the CNF-ed representation.
"""
return Slist(_be.Be_Cnf_GetClausesList(self._ptr),
ArrayOfClauses(),
freeit=False)
def cnf_to_be_model(self, slist):
"""
Converts the given CNF model (dimacs obtained from `solver.model` into
an equivalent model.
:param slist: the cnf model in the form of a slist (as is the case from
`solver.model`).
:return: Converts the given CNF model into BE model
"""
# note: this is never used in NuSMV
return Slist(_be.Be_CnfModelToBeModel(self._ptr, slist._ptr),
IntConversion())
def model(self):
"""
Returns a list of values in dimacs form that satisfy the set of formulas
The previous solving call should have returned SATISFIABLE.
The returned list is a list of values in dimac form (positive literal
is included as the variable index, negative literal as the negative
variable index, if a literal has not been set its value is not included).
:return: a list of values in dimac form that satisfy the set of formulas
"""
lst = _sat.SatSolver_get_model(self._as_SatSolver_ptr())
return Slist(lst, IntConversion(), freeit=False)
