Z3
 
Loading...
Searching...
No Matches
Public Member Functions | Data Fields
FuncEntry Class Reference

Public Member Functions

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

Data Fields

 entry
 
 ctx
 

Detailed Description

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

Definition at line 6132 of file z3py.py.

Constructor & Destructor Documentation

◆ __init__()

__init__ (   self,
  entry,
  ctx 
)

Definition at line 6135 of file z3py.py.

6135 def __init__(self, entry, ctx):
6136 self.entry = entry
6137 self.ctx = ctx
6138 Z3_func_entry_inc_ref(self.ctx.ref(), self.entry)
6139
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__()

__del__ (   self)

Definition at line 6143 of file z3py.py.

6143 def __del__(self):
6144 if self.ctx.ref() is not None and Z3_func_entry_dec_ref is not None:
6145 Z3_func_entry_dec_ref(self.ctx.ref(), self.entry)
6146
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__()

__deepcopy__ (   self,
  memo = {} 
)

Definition at line 6140 of file z3py.py.

6140 def __deepcopy__(self, memo={}):
6141 return FuncEntry(self.entry, self.ctx)
6142

◆ __repr__()

__repr__ (   self)

Definition at line 6237 of file z3py.py.

6237 def __repr__(self):
6238 return repr(self.as_list())
6239
6240

◆ arg_value()

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 6165 of file z3py.py.

6165 def arg_value(self, idx):
6166 """Return the value of argument `idx`.
6167
6168 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6169 >>> s = Solver()
6170 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6171 >>> s.check()
6172 sat
6173 >>> m = s.model()
6174 >>> f_i = m[f]
6175 >>> f_i.num_entries()
6176 1
6177 >>> e = f_i.entry(0)
6178 >>> e
6179 [1, 2, 20]
6180 >>> e.num_args()
6181 2
6182 >>> e.arg_value(0)
6183 1
6184 >>> e.arg_value(1)
6185 2
6186 >>> try:
6187 ... e.arg_value(2)
6188 ... except IndexError:
6189 ... print("index error")
6190 index error
6191 """
6192 if idx >= self.num_args():
6193 raise IndexError
6194 return _to_expr_ref(Z3_func_entry_get_arg(self.ctx.ref(), self.entry, idx), self.ctx)
6195
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()

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 6218 of file z3py.py.

6218 def as_list(self):
6219 """Return entry `self` as a Python list.
6220 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6221 >>> s = Solver()
6222 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6223 >>> s.check()
6224 sat
6225 >>> m = s.model()
6226 >>> f_i = m[f]
6227 >>> f_i.num_entries()
6228 1
6229 >>> e = f_i.entry(0)
6230 >>> e.as_list()
6231 [1, 2, 20]
6232 """
6233 args = [self.arg_value(i) for i in range(self.num_args())]
6234 args.append(self.value())
6235 return args
6236

Referenced by FuncEntry.__repr__().

◆ num_args()

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 6147 of file z3py.py.

6147 def num_args(self):
6148 """Return the number of arguments in the given entry.
6149
6150 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6151 >>> s = Solver()
6152 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6153 >>> s.check()
6154 sat
6155 >>> m = s.model()
6156 >>> f_i = m[f]
6157 >>> f_i.num_entries()
6158 1
6159 >>> e = f_i.entry(0)
6160 >>> e.num_args()
6161 2
6162 """
6163 return int(Z3_func_entry_get_num_args(self.ctx.ref(), self.entry))
6164
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()

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 6196 of file z3py.py.

6196 def value(self):
6197 """Return the value of the function at point `self`.
6198
6199 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6200 >>> s = Solver()
6201 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6202 >>> s.check()
6203 sat
6204 >>> m = s.model()
6205 >>> f_i = m[f]
6206 >>> f_i.num_entries()
6207 1
6208 >>> e = f_i.entry(0)
6209 >>> e
6210 [1, 2, 20]
6211 >>> e.num_args()
6212 2
6213 >>> e.value()
6214 20
6215 """
6216 return _to_expr_ref(Z3_func_entry_get_value(self.ctx.ref(), self.entry), self.ctx)
6217
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 6137 of file z3py.py.

Referenced by ArithRef.__add__(), BitVecRef.__add__(), BitVecRef.__and__(), FuncDeclRef.__call__(), AstMap.__contains__(), AstRef.__copy__(), Goal.__copy__(), AstVector.__copy__(), FuncInterp.__copy__(), ModelRef.__copy__(), AstRef.__deepcopy__(), Datatype.__deepcopy__(), ParamsRef.__deepcopy__(), ParamDescrsRef.__deepcopy__(), Goal.__deepcopy__(), AstVector.__deepcopy__(), AstMap.__deepcopy__(), FuncEntry.__deepcopy__(), FuncInterp.__deepcopy__(), ModelRef.__deepcopy__(), Statistics.__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__(), ArithRef.__div__(), BitVecRef.__div__(), ExprRef.__eq__(), ArithRef.__ge__(), BitVecRef.__ge__(), AstVector.__getitem__(), ModelRef.__getitem__(), Statistics.__getitem__(), AstMap.__getitem__(), ArithRef.__gt__(), BitVecRef.__gt__(), BitVecRef.__invert__(), ArithRef.__le__(), BitVecRef.__le__(), AstVector.__len__(), AstMap.__len__(), ModelRef.__len__(), Statistics.__len__(), BitVecRef.__lshift__(), ArithRef.__lt__(), BitVecRef.__lt__(), ArithRef.__mod__(), BitVecRef.__mod__(), BoolRef.__mul__(), ArithRef.__mul__(), BitVecRef.__mul__(), ExprRef.__ne__(), ArithRef.__neg__(), BitVecRef.__neg__(), BitVecRef.__or__(), ArithRef.__pow__(), ArithRef.__radd__(), BitVecRef.__radd__(), BitVecRef.__rand__(), ArithRef.__rdiv__(), BitVecRef.__rdiv__(), ParamsRef.__repr__(), ParamDescrsRef.__repr__(), AstMap.__repr__(), Statistics.__repr__(), BitVecRef.__rlshift__(), ArithRef.__rmod__(), BitVecRef.__rmod__(), ArithRef.__rmul__(), BitVecRef.__rmul__(), BitVecRef.__ror__(), ArithRef.__rpow__(), BitVecRef.__rrshift__(), BitVecRef.__rshift__(), ArithRef.__rsub__(), BitVecRef.__rsub__(), BitVecRef.__rxor__(), AstVector.__setitem__(), AstMap.__setitem__(), ArithRef.__sub__(), BitVecRef.__sub__(), BitVecRef.__xor__(), DatatypeSortRef.accessor(), ExprRef.arg(), FuncEntry.arg_value(), FuncInterp.arity(), Goal.as_expr(), Solver.assert_and_track(), Goal.assert_exprs(), Solver.assert_exprs(), QuantifierRef.body(), Solver.check(), Goal.convert_model(), AstRef.ctx_ref(), ExprRef.decl(), ModelRef.decls(), ArrayRef.default(), RatNumRef.denominator(), Goal.depth(), Goal.dimacs(), FuncDeclRef.domain(), ArraySortRef.domain_n(), FuncInterp.else_value(), FuncInterp.entry(), AstMap.erase(), ModelRef.eval(), Goal.get(), ParamDescrsRef.get_documentation(), ModelRef.get_interp(), Statistics.get_key_value(), ParamDescrsRef.get_kind(), ParamDescrsRef.get_name(), ModelRef.get_sort(), ModelRef.get_universe(), Goal.inconsistent(), AstMap.keys(), Statistics.keys(), Solver.model(), SortRef.name(), QuantifierRef.no_pattern(), FuncEntry.num_args(), FuncInterp.num_entries(), Solver.num_scopes(), ModelRef.num_sorts(), FuncDeclRef.params(), QuantifierRef.pattern(), AlgebraicNumRef.poly(), Solver.pop(), Goal.prec(), Solver.push(), AstVector.push(), FuncDeclRef.range(), ArraySortRef.range(), DatatypeSortRef.recognizer(), Context.ref(), AstMap.reset(), Solver.reset(), AstVector.resize(), Solver.set(), ParamsRef.set(), Goal.sexpr(), AstVector.sexpr(), ModelRef.sexpr(), ParamDescrsRef.size(), Goal.size(), AstVector.translate(), AstRef.translate(), Goal.translate(), ModelRef.translate(), ParamsRef.validate(), FuncEntry.value(), QuantifierRef.var_name(), and QuantifierRef.var_sort().

◆ entry

entry