FuncEntry Class Reference

Public Member Functions
def	__init__ (self, entry, ctx)
def	__deepcopy__ (self, memo={})
def	__del__ (self)
def	num_args (self)
def	arg_value (self, idx)
def	value (self)
def	as_list (self)
def	__repr__ (self)

Data Fields
	entry
	ctx

Detailed Description

Store the value of the interpretation of a function in a particular point.

Definition at line 6070 of file z3py.py.

Constructor & Destructor Documentation

__init__()

def __init__	(		self,
			entry,
			ctx
	)

Definition at line 6073 of file z3py.py.

    def __init__(self, entry, ctx):
        self.entry = entry
        self.ctx = ctx
        Z3_func_entry_inc_ref(self.ctx.ref(), self.entry)
 

__del__()

def __del__

(

self

)

Definition at line 6081 of file z3py.py.

    def __del__(self):
        if self.ctx.ref() is not None:
            Z3_func_entry_dec_ref(self.ctx.ref(), self.entry)
 

Member Function Documentation

__deepcopy__()

def __deepcopy__	(		self,
			memo = {}
	)

Definition at line 6078 of file z3py.py.

    def __deepcopy__(self, memo={}):
        return FuncEntry(self.entry, self.ctx)
 

__repr__()

def __repr__

(

self

)

Definition at line 6175 of file z3py.py.

    def __repr__(self):
        return repr(self.as_list())
 
 

arg_value()

def arg_value	(		self,
			idx
	)

Return the value of argument `idx`.

>>> f = Function('f', IntSort(), IntSort(), IntSort())
>>> s = Solver()
>>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
>>> s.check()
sat
>>> m = s.model()
>>> f_i = m[f]
>>> f_i.num_entries()
1
>>> e = f_i.entry(0)
>>> e
[1, 2, 20]
>>> e.num_args()
2
>>> e.arg_value(0)
1
>>> e.arg_value(1)
2
>>> try:
...   e.arg_value(2)
... except IndexError:
...   print("index error")
index error

Definition at line 6103 of file z3py.py.

    def arg_value(self, idx):
        """Return the value of argument `idx`.
 
        >>> f = Function('f', IntSort(), IntSort(), IntSort())
        >>> s = Solver()
        >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
        >>> s.check()
        sat
        >>> m = s.model()
        >>> f_i = m[f]
        >>> f_i.num_entries()
        1
        >>> e = f_i.entry(0)
        >>> e
        [1, 2, 20]
        >>> e.num_args()
        2
        >>> e.arg_value(0)
        1
        >>> e.arg_value(1)
        2
        >>> try:
        ...   e.arg_value(2)
        ... except IndexError:
        ...   print("index error")
        index error
        """
        if idx >= self.num_args():
            raise IndexError
        return _to_expr_ref(Z3_func_entry_get_arg(self.ctx.ref(), self.entry, idx), self.ctx)
 

Referenced by FuncEntry.as_list().

as_list()

def as_list

(

self

)

Return entry `self` as a Python list.
>>> f = Function('f', IntSort(), IntSort(), IntSort())
>>> s = Solver()
>>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
>>> s.check()
sat
>>> m = s.model()
>>> f_i = m[f]
>>> f_i.num_entries()
1
>>> e = f_i.entry(0)
>>> e.as_list()
[1, 2, 20]

Definition at line 6156 of file z3py.py.

    def as_list(self):
        """Return entry `self` as a Python list.
        >>> f = Function('f', IntSort(), IntSort(), IntSort())
        >>> s = Solver()
        >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
        >>> s.check()
        sat
        >>> m = s.model()
        >>> f_i = m[f]
        >>> f_i.num_entries()
        1
        >>> e = f_i.entry(0)
        >>> e.as_list()
        [1, 2, 20]
        """
        args = [self.arg_value(i) for i in range(self.num_args())]
        args.append(self.value())
        return args
 

Referenced by FuncEntry.__repr__().

num_args()

def num_args

(

self

)

Return the number of arguments in the given entry.

>>> f = Function('f', IntSort(), IntSort(), IntSort())
>>> s = Solver()
>>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
>>> s.check()
sat
>>> m = s.model()
>>> f_i = m[f]
>>> f_i.num_entries()
1
>>> e = f_i.entry(0)
>>> e.num_args()
2

Definition at line 6085 of file z3py.py.

    def num_args(self):
        """Return the number of arguments in the given entry.
 
        >>> f = Function('f', IntSort(), IntSort(), IntSort())
        >>> s = Solver()
        >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
        >>> s.check()
        sat
        >>> m = s.model()
        >>> f_i = m[f]
        >>> f_i.num_entries()
        1
        >>> e = f_i.entry(0)
        >>> e.num_args()
        2
        """
        return int(Z3_func_entry_get_num_args(self.ctx.ref(), self.entry))
 

Referenced by AstRef.__bool__(), FuncEntry.arg_value(), and FuncEntry.as_list().

value()

def value

(

self

)

Return the value of the function at point `self`.

>>> f = Function('f', IntSort(), IntSort(), IntSort())
>>> s = Solver()
>>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
>>> s.check()
sat
>>> m = s.model()
>>> f_i = m[f]
>>> f_i.num_entries()
1
>>> e = f_i.entry(0)
>>> e
[1, 2, 20]
>>> e.num_args()
2
>>> e.value()
20

Definition at line 6134 of file z3py.py.

    def value(self):
        """Return the value of the function at point `self`.
 
        >>> f = Function('f', IntSort(), IntSort(), IntSort())
        >>> s = Solver()
        >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
        >>> s.check()
        sat
        >>> m = s.model()
        >>> f_i = m[f]
        >>> f_i.num_entries()
        1
        >>> e = f_i.entry(0)
        >>> e
        [1, 2, 20]
        >>> e.num_args()
        2
        >>> e.value()
        20
        """
        return _to_expr_ref(Z3_func_entry_get_value(self.ctx.ref(), self.entry), self.ctx)
 

Referenced by FuncEntry.as_list().

Field Documentation

ctx

ctx

Definition at line 6075 of file z3py.py.

Referenced by Probe.__call__(), FuncInterp.__copy__(), ModelRef.__copy__(), Solver.__copy__(), FuncEntry.__deepcopy__(), FuncInterp.__deepcopy__(), ModelRef.__deepcopy__(), Statistics.__deepcopy__(), Solver.__deepcopy__(), Fixedpoint.__deepcopy__(), Optimize.__deepcopy__(), ApplyResult.__deepcopy__(), Tactic.__deepcopy__(), Probe.__deepcopy__(), FuncEntry.__del__(), FuncInterp.__del__(), ModelRef.__del__(), Statistics.__del__(), Solver.__del__(), Fixedpoint.__del__(), Optimize.__del__(), ApplyResult.__del__(), Tactic.__del__(), Probe.__del__(), Probe.__eq__(), Probe.__ge__(), ModelRef.__getitem__(), Statistics.__getitem__(), ApplyResult.__getitem__(), Probe.__gt__(), Probe.__le__(), ModelRef.__len__(), Statistics.__len__(), ApplyResult.__len__(), Probe.__lt__(), Probe.__ne__(), Statistics.__repr__(), Fixedpoint.add_cover(), Fixedpoint.add_rule(), Optimize.add_soft(), Tactic.apply(), FuncEntry.arg_value(), FuncInterp.arity(), ApplyResult.as_expr(), Solver.assert_and_track(), Optimize.assert_and_track(), Solver.assert_exprs(), Fixedpoint.assert_exprs(), Optimize.assert_exprs(), Solver.assertions(), Optimize.assertions(), Solver.check(), Optimize.check(), UserPropagateBase.conflict(), Solver.consequences(), UserPropagateBase.ctx_ref(), ModelRef.decls(), Solver.dimacs(), FuncInterp.else_value(), FuncInterp.entry(), ModelRef.eval(), Solver.from_file(), Optimize.from_file(), Solver.from_string(), Optimize.from_string(), Fixedpoint.get_answer(), Fixedpoint.get_assertions(), Fixedpoint.get_cover_delta(), Fixedpoint.get_ground_sat_answer(), ModelRef.get_interp(), Statistics.get_key_value(), Fixedpoint.get_num_levels(), Fixedpoint.get_rule_names_along_trace(), Fixedpoint.get_rules(), Fixedpoint.get_rules_along_trace(), ModelRef.get_sort(), ModelRef.get_universe(), Solver.help(), Fixedpoint.help(), Optimize.help(), Tactic.help(), Solver.import_model_converter(), Statistics.keys(), Optimize.maximize(), Optimize.minimize(), Solver.model(), Optimize.model(), Solver.non_units(), FuncEntry.num_args(), FuncInterp.num_entries(), Solver.num_scopes(), ModelRef.num_sorts(), Optimize.objectives(), Solver.param_descrs(), Fixedpoint.param_descrs(), Optimize.param_descrs(), Tactic.param_descrs(), Fixedpoint.parse_file(), Fixedpoint.parse_string(), Optimize.pop(), Solver.pop(), Solver.proof(), Solver.push(), Optimize.push(), Fixedpoint.query(), Fixedpoint.query_from_lvl(), Solver.reason_unknown(), Fixedpoint.reason_unknown(), Optimize.reason_unknown(), Fixedpoint.register_relation(), Solver.reset(), Solver.set(), Fixedpoint.set(), Optimize.set(), Optimize.set_on_model(), Fixedpoint.set_predicate_representation(), ModelRef.sexpr(), Solver.sexpr(), Fixedpoint.sexpr(), Optimize.sexpr(), ApplyResult.sexpr(), Tactic.solver(), Solver.statistics(), Fixedpoint.statistics(), Optimize.statistics(), Solver.to_smt2(), Fixedpoint.to_string(), Solver.trail(), Solver.trail_levels(), FuncInterp.translate(), ModelRef.translate(), Solver.translate(), Solver.units(), Solver.unsat_core(), Optimize.unsat_core(), Fixedpoint.update_rule(), and FuncEntry.value().

entry

entry

Definition at line 6074 of file z3py.py.

Referenced by FuncEntry.__deepcopy__(), FuncEntry.__del__(), FuncEntry.arg_value(), FuncInterp.as_list(), FuncEntry.num_args(), and FuncEntry.value().