Z3
 
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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 = entry
 
 ctx = ctx
 

Detailed Description

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

Definition at line 6186 of file z3py.py.

Constructor & Destructor Documentation

◆ __init__()

__init__ ( self,
entry,
ctx )

Definition at line 6189 of file z3py.py.

6189 def __init__(self, entry, ctx):
6190 self.entry = entry
6191 self.ctx = ctx
6192 Z3_func_entry_inc_ref(self.ctx.ref(), self.entry)
6193
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 6197 of file z3py.py.

6197 def __del__(self):
6198 if self.ctx.ref() is not None and Z3_func_entry_dec_ref is not None:
6199 Z3_func_entry_dec_ref(self.ctx.ref(), self.entry)
6200
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 6194 of file z3py.py.

6194 def __deepcopy__(self, memo={}):
6195 return FuncEntry(self.entry, self.ctx)
6196

◆ __repr__()

__repr__ ( self)

Definition at line 6291 of file z3py.py.

6291 def __repr__(self):
6292 return repr(self.as_list())
6293
6294

◆ 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 6219 of file z3py.py.

6219 def arg_value(self, idx):
6220 """Return the value of argument `idx`.
6221
6222 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6223 >>> s = Solver()
6224 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6225 >>> s.check()
6226 sat
6227 >>> m = s.model()
6228 >>> f_i = m[f]
6229 >>> f_i.num_entries()
6230 1
6231 >>> e = f_i.entry(0)
6232 >>> e
6233 [1, 2, 20]
6234 >>> e.num_args()
6235 2
6236 >>> e.arg_value(0)
6237 1
6238 >>> e.arg_value(1)
6239 2
6240 >>> try:
6241 ... e.arg_value(2)
6242 ... except IndexError:
6243 ... print("index error")
6244 index error
6245 """
6246 if idx >= self.num_args():
6247 raise IndexError
6248 return _to_expr_ref(Z3_func_entry_get_arg(self.ctx.ref(), self.entry, idx), self.ctx)
6249
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 6272 of file z3py.py.

6272 def as_list(self):
6273 """Return entry `self` as a Python list.
6274 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6275 >>> s = Solver()
6276 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6277 >>> s.check()
6278 sat
6279 >>> m = s.model()
6280 >>> f_i = m[f]
6281 >>> f_i.num_entries()
6282 1
6283 >>> e = f_i.entry(0)
6284 >>> e.as_list()
6285 [1, 2, 20]
6286 """
6287 args = [self.arg_value(i) for i in range(self.num_args())]
6288 args.append(self.value())
6289 return args
6290

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 6201 of file z3py.py.

6201 def num_args(self):
6202 """Return the number of arguments in the given entry.
6203
6204 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6205 >>> s = Solver()
6206 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6207 >>> s.check()
6208 sat
6209 >>> m = s.model()
6210 >>> f_i = m[f]
6211 >>> f_i.num_entries()
6212 1
6213 >>> e = f_i.entry(0)
6214 >>> e.num_args()
6215 2
6216 """
6217 return int(Z3_func_entry_get_num_args(self.ctx.ref(), self.entry))
6218
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 6250 of file z3py.py.

6250 def value(self):
6251 """Return the value of the function at point `self`.
6252
6253 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6254 >>> s = Solver()
6255 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6256 >>> s.check()
6257 sat
6258 >>> m = s.model()
6259 >>> f_i = m[f]
6260 >>> f_i.num_entries()
6261 1
6262 >>> e = f_i.entry(0)
6263 >>> e
6264 [1, 2, 20]
6265 >>> e.num_args()
6266 2
6267 >>> e.value()
6268 20
6269 """
6270 return _to_expr_ref(Z3_func_entry_get_value(self.ctx.ref(), self.entry), self.ctx)
6271
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 = ctx

Definition at line 6191 of file z3py.py.

Referenced by ArithRef.__add__(), BitVecRef.__add__(), BitVecRef.__and__(), FuncDeclRef.__call__(), AstMap.__contains__(), AstRef.__copy__(), AstVector.__copy__(), FuncInterp.__copy__(), Goal.__copy__(), ModelRef.__copy__(), AstMap.__deepcopy__(), AstRef.__deepcopy__(), AstVector.__deepcopy__(), Datatype.__deepcopy__(), FuncEntry.__deepcopy__(), FuncInterp.__deepcopy__(), Goal.__deepcopy__(), ModelRef.__deepcopy__(), ParamDescrsRef.__deepcopy__(), ParamsRef.__deepcopy__(), Statistics.__deepcopy__(), AstMap.__del__(), AstRef.__del__(), AstVector.__del__(), Context.__del__(), FuncEntry.__del__(), FuncInterp.__del__(), Goal.__del__(), ModelRef.__del__(), ParamDescrsRef.__del__(), ParamsRef.__del__(), ScopedConstructor.__del__(), ScopedConstructorList.__del__(), Solver.__del__(), Statistics.__del__(), ArithRef.__div__(), BitVecRef.__div__(), ExprRef.__eq__(), ArithRef.__ge__(), BitVecRef.__ge__(), AstMap.__getitem__(), AstVector.__getitem__(), ModelRef.__getitem__(), Statistics.__getitem__(), ArithRef.__gt__(), BitVecRef.__gt__(), BitVecRef.__invert__(), ArithRef.__le__(), BitVecRef.__le__(), AstMap.__len__(), AstVector.__len__(), ModelRef.__len__(), Statistics.__len__(), BitVecRef.__lshift__(), ArithRef.__lt__(), BitVecRef.__lt__(), ArithRef.__mod__(), BitVecRef.__mod__(), ArithRef.__mul__(), BitVecRef.__mul__(), BoolRef.__mul__(), ExprRef.__ne__(), ArithRef.__neg__(), BitVecRef.__neg__(), BitVecRef.__or__(), ArithRef.__pow__(), ArithRef.__radd__(), BitVecRef.__radd__(), BitVecRef.__rand__(), ArithRef.__rdiv__(), BitVecRef.__rdiv__(), AstMap.__repr__(), ParamDescrsRef.__repr__(), ParamsRef.__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__(), AstMap.__setitem__(), AstVector.__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(), AstVector.push(), Solver.push(), QuantifierRef.qid(), ArraySortRef.range(), FuncDeclRef.range(), DatatypeSortRef.recognizer(), Context.ref(), AstMap.reset(), Solver.reset(), AstVector.resize(), ParamsRef.set(), Solver.set(), AstVector.sexpr(), Goal.sexpr(), ModelRef.sexpr(), Goal.size(), ParamDescrsRef.size(), QuantifierRef.skolem_id(), AstRef.translate(), AstVector.translate(), Goal.translate(), ModelRef.translate(), ParamsRef.validate(), FuncEntry.value(), QuantifierRef.var_name(), and QuantifierRef.var_sort().

◆ entry