Z3 |

Public Member Functions | Data Fields
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.

6073 def __init__(self, entry, ctx):
6074 self.entry = entry
6075 self.ctx = ctx
6076 Z3_func_entry_inc_ref(self.ctx.ref(), self.entry)
6077
Z3_func_entry_inc_ref
void Z3_API Z3_func_entry_inc_ref(Z3_context c, Z3_func_entry e)
Increment the reference counter of the given Z3_func_entry object.

## ◆ __del__()

def __del__ | ( |  | self | ) |

Definition at line 6081 of file z3py.py.

6081 def __del__(self):
6082 if self.ctx.ref() is not None:
6083 Z3_func_entry_dec_ref(self.ctx.ref(), self.entry)
6084
Z3_func_entry_dec_ref
void Z3_API Z3_func_entry_dec_ref(Z3_context c, Z3_func_entry e)
Decrement the reference counter of the given Z3_func_entry object.

## Member Function Documentation

## ◆ __deepcopy__()

def __deepcopy__ | ( |  | self,
|  |  | memo = `{}`
| ) |  |

Definition at line 6078 of file z3py.py.

6078 def __deepcopy__(self, memo={}):
6079 return FuncEntry(self.entry, self.ctx)
6080

## ◆ __repr__()

def __repr__ | ( |  | self | ) |

Definition at line 6175 of file z3py.py.

6175 def __repr__(self):
6176 return repr(self.as_list())
6177
6178

## ◆ 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.

6103 def arg_value(self, idx):
6104 """Return the value of argument `idx`.
6105
6106 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6107 >>> s = Solver()
6108 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6109 >>> s.check()
6110 sat
6111 >>> m = s.model()
6112 >>> f_i = m[f]
6113 >>> f_i.num_entries()
6114 1
6115 >>> e = f_i.entry(0)
6116 >>> e
6117 [1, 2, 20]
6118 >>> e.num_args()
6119 2
6120 >>> e.arg_value(0)
6121 1
6122 >>> e.arg_value(1)
6123 2
6124 >>> try:
6125 ... e.arg_value(2)
6126 ... except IndexError:
6127 ... print("index error")
6128 index error
6129 """
6130 if idx >= self.num_args():
6131 raise IndexError
6132 return _to_expr_ref(Z3_func_entry_get_arg(self.ctx.ref(), self.entry, idx), self.ctx)
6133
z3py.IntSort
def IntSort(ctx=None)
Definition: z3py.py:3100
z3py.Function
def Function(name, *sig)
Definition: z3py.py:860
Z3_func_entry_get_arg
Z3_ast Z3_API Z3_func_entry_get_arg(Z3_context c, Z3_func_entry e, unsigned i)
Return an argument of a Z3_func_entry object.

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.

6156 def as_list(self):
6157 """Return entry `self` as a Python list.
6158 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6159 >>> s = Solver()
6160 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6161 >>> s.check()
6162 sat
6163 >>> m = s.model()
6164 >>> f_i = m[f]
6165 >>> f_i.num_entries()
6166 1
6167 >>> e = f_i.entry(0)
6168 >>> e.as_list()
6169 [1, 2, 20]
6170 """
6171 args = [self.arg_value(i) for i in range(self.num_args())]
6172 args.append(self.value())
6173 return args
6174
z3::range
expr range(expr const &lo, expr const &hi)
Definition: z3++.h:3725

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.

6085 def num_args(self):
6086 """Return the number of arguments in the given entry.
6087
6088 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6089 >>> s = Solver()
6090 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6091 >>> s.check()
6092 sat
6093 >>> m = s.model()
6094 >>> f_i = m[f]
6095 >>> f_i.num_entries()
6096 1
6097 >>> e = f_i.entry(0)
6098 >>> e.num_args()
6099 2
6100 """
6101 return int(Z3_func_entry_get_num_args(self.ctx.ref(), self.entry))
6102
Z3_func_entry_get_num_args
unsigned Z3_API Z3_func_entry_get_num_args(Z3_context c, Z3_func_entry e)
Return the number of arguments in a Z3_func_entry object.

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

## ◆ 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.

6134 def value(self):
6135 """Return the value of the function at point `self`.
6136
6137 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6138 >>> s = Solver()
6139 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6140 >>> s.check()
6141 sat
6142 >>> m = s.model()
6143 >>> f_i = m[f]
6144 >>> f_i.num_entries()
6145 1
6146 >>> e = f_i.entry(0)
6147 >>> e
6148 [1, 2, 20]
6149 >>> e.num_args()
6150 2
6151 >>> e.value()
6152 20
6153 """
6154 return _to_expr_ref(Z3_func_entry_get_value(self.ctx.ref(), self.entry), self.ctx)
6155
Z3_func_entry_get_value
Z3_ast Z3_API Z3_func_entry_get_value(Z3_context c, Z3_func_entry e)
Return the value of this point.

Referenced by FuncEntry.as_list().

## Field Documentation

## ◆ ctx

ctx

Definition at line 6075 of file z3py.py.

Referenced by ArithRef.__add__(), BitVecRef.__add__(), FPRef.__add__(), BitVecRef.__and__(), FuncDeclRef.__call__(), Probe.__call__(), AstMap.__contains__(), AstRef.__copy__(), Goal.__copy__(), AstVector.__copy__(), FuncInterp.__copy__(), ModelRef.__copy__(), Solver.__copy__(), AstRef.__deepcopy__(), Datatype.__deepcopy__(), ParamsRef.__deepcopy__(), ParamDescrsRef.__deepcopy__(), Goal.__deepcopy__(), AstVector.__deepcopy__(), AstMap.__deepcopy__(), FuncEntry.__deepcopy__(), FuncInterp.__deepcopy__(), ModelRef.__deepcopy__(), Statistics.__deepcopy__(), Solver.__deepcopy__(), Fixedpoint.__deepcopy__(), Optimize.__deepcopy__(), ApplyResult.__deepcopy__(), Tactic.__deepcopy__(), Probe.__deepcopy__(), Context.__del__(), AstRef.__del__(), ScopedConstructor.__del__(), ScopedConstructorList.__del__(), ParamsRef.__del__(), ParamDescrsRef.__del__(), Goal.__del__(), AstVector.__del__(), AstMap.__del__(), FuncEntry.__del__(), FuncInterp.__del__(), ModelRef.__del__(), Statistics.__del__(), Solver.__del__(), Fixedpoint.__del__(), Optimize.__del__(), ApplyResult.__del__(), Tactic.__del__(), Probe.__del__(), ArithRef.__div__(), BitVecRef.__div__(), FPRef.__div__(), ExprRef.__eq__(), Probe.__eq__(), ArithRef.__ge__(), BitVecRef.__ge__(), Probe.__ge__(), FPRef.__ge__(), SeqRef.__ge__(), QuantifierRef.__getitem__(), ArrayRef.__getitem__(), AstVector.__getitem__(), SeqRef.__getitem__(), ModelRef.__getitem__(), Statistics.__getitem__(), ApplyResult.__getitem__(), AstMap.__getitem__(), ArithRef.__gt__(), BitVecRef.__gt__(), Probe.__gt__(), FPRef.__gt__(), SeqRef.__gt__(), BitVecRef.__invert__(), ArithRef.__le__(), BitVecRef.__le__(), Probe.__le__(), FPRef.__le__(), SeqRef.__le__(), AstVector.__len__(), AstMap.__len__(), ModelRef.__len__(), Statistics.__len__(), ApplyResult.__len__(), BitVecRef.__lshift__(), ArithRef.__lt__(), BitVecRef.__lt__(), Probe.__lt__(), FPRef.__lt__(), SeqRef.__lt__(), ArithRef.__mod__(), BitVecRef.__mod__(), ArithRef.__mul__(), BitVecRef.__mul__(), FPRef.__mul__(), ExprRef.__ne__(), Probe.__ne__(), ArithRef.__neg__(), BitVecRef.__neg__(), BitVecRef.__or__(), ArithRef.__pow__(), ArithRef.__radd__(), BitVecRef.__radd__(), FPRef.__radd__(), BitVecRef.__rand__(), ArithRef.__rdiv__(), BitVecRef.__rdiv__(), FPRef.__rdiv__(), ParamsRef.__repr__(), ParamDescrsRef.__repr__(), AstMap.__repr__(), Statistics.__repr__(), BitVecRef.__rlshift__(), ArithRef.__rmod__(), BitVecRef.__rmod__(), ArithRef.__rmul__(), BitVecRef.__rmul__(), FPRef.__rmul__(), BitVecRef.__ror__(), ArithRef.__rpow__(), BitVecRef.__rrshift__(), BitVecRef.__rshift__(), ArithRef.__rsub__(), BitVecRef.__rsub__(), FPRef.__rsub__(), BitVecRef.__rxor__(), AstVector.__setitem__(), AstMap.__setitem__(), ArithRef.__sub__(), BitVecRef.__sub__(), FPRef.__sub__(), BitVecRef.__xor__(), DatatypeSortRef.accessor(), Fixedpoint.add_cover(), Fixedpoint.add_rule(), Optimize.add_soft(), Tactic.apply(), AlgebraicNumRef.approx(), ExprRef.arg(), FuncEntry.arg_value(), FuncInterp.arity(), Goal.as_expr(), ApplyResult.as_expr(), FPNumRef.as_string(), Solver.assert_and_track(), Optimize.assert_and_track(), Goal.assert_exprs(), Solver.assert_exprs(), Fixedpoint.assert_exprs(), Optimize.assert_exprs(), Solver.assertions(), Optimize.assertions(), SeqRef.at(), SeqSortRef.basis(), ReSortRef.basis(), QuantifierRef.body(), BoolSortRef.cast(), Solver.check(), Optimize.check(), UserPropagateBase.conflict(), Solver.consequences(), DatatypeSortRef.constructor(), Goal.convert_model(), AstRef.ctx_ref(), UserPropagateBase.ctx_ref(), ExprRef.decl(), ModelRef.decls(), ArrayRef.default(), RatNumRef.denominator(), Goal.depth(), Goal.dimacs(), Solver.dimacs(), ArraySortRef.domain(), FuncDeclRef.domain(), FuncInterp.else_value(), FuncInterp.entry(), AstMap.erase(), ModelRef.eval(), FPNumRef.exponent(), FPNumRef.exponent_as_bv(), FPNumRef.exponent_as_long(), Solver.from_file(), Optimize.from_file(), Solver.from_string(), Optimize.from_string(), Goal.get(), Fixedpoint.get_answer(), Fixedpoint.get_assertions(), Fixedpoint.get_cover_delta(), ParamDescrsRef.get_documentation(), Fixedpoint.get_ground_sat_answer(), ModelRef.get_interp(), Statistics.get_key_value(), ParamDescrsRef.get_kind(), ParamDescrsRef.get_name(), 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(), Goal.inconsistent(), FPNumRef.isInf(), FPNumRef.isNaN(), FPNumRef.isNegative(), FPNumRef.isNormal(), FPNumRef.isPositive(), FPNumRef.isSubnormal(), FPNumRef.isZero(), AstMap.keys(), Statistics.keys(), SortRef.kind(), Optimize.maximize(), Optimize.minimize(), Solver.model(), Optimize.model(), SortRef.name(), FuncDeclRef.name(), QuantifierRef.no_pattern(), Solver.non_units(), FuncEntry.num_args(), FuncInterp.num_entries(), Solver.num_scopes(), ModelRef.num_sorts(), RatNumRef.numerator(), Optimize.objectives(), Solver.param_descrs(), Fixedpoint.param_descrs(), Optimize.param_descrs(), Tactic.param_descrs(), FuncDeclRef.params(), Fixedpoint.parse_file(), Fixedpoint.parse_string(), QuantifierRef.pattern(), AlgebraicNumRef.poly(), Optimize.pop(), Solver.pop(), Goal.prec(), Solver.proof(), Solver.push(), Optimize.push(), AstVector.push(), Fixedpoint.query(), Fixedpoint.query_from_lvl(), FuncDeclRef.range(), ArraySortRef.range(), Solver.reason_unknown(), Fixedpoint.reason_unknown(), Optimize.reason_unknown(), DatatypeSortRef.recognizer(), Context.ref(), Fixedpoint.register_relation(), AstMap.reset(), Solver.reset(), AstVector.resize(), Solver.set(), Fixedpoint.set(), Optimize.set(), ParamsRef.set(), Optimize.set_on_model(), Fixedpoint.set_predicate_representation(), Goal.sexpr(), AstVector.sexpr(), ModelRef.sexpr(), Solver.sexpr(), Fixedpoint.sexpr(), Optimize.sexpr(), ApplyResult.sexpr(), FPNumRef.sign(), FPNumRef.sign_as_bv(), FPNumRef.significand(), FPNumRef.significand_as_bv(), FPNumRef.significand_as_long(), ParamDescrsRef.size(), Goal.size(), Tactic.solver(), ExprRef.sort(), BoolRef.sort(), QuantifierRef.sort(), ArithRef.sort(), BitVecRef.sort(), ArrayRef.sort(), DatatypeRef.sort(), FiniteDomainRef.sort(), FPRef.sort(), SeqRef.sort(), Solver.statistics(), Fixedpoint.statistics(), Optimize.statistics(), Solver.to_smt2(), Fixedpoint.to_string(), Solver.trail(), Solver.trail_levels(), AstVector.translate(), FuncInterp.translate(), AstRef.translate(), Goal.translate(), ModelRef.translate(), Solver.translate(), Solver.units(), Solver.unsat_core(), Optimize.unsat_core(), Fixedpoint.update_rule(), ParamsRef.validate(), FuncEntry.value(), QuantifierRef.var_name(), and QuantifierRef.var_sort().

## ◆ 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().