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
 
 ctx
 

Detailed Description

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

Definition at line 6294 of file z3py.py.

Constructor & Destructor Documentation

◆ __init__()

__init__ ( self,
entry,
ctx )

Definition at line 6297 of file z3py.py.

6297 def __init__(self, entry, ctx):
6298 self.entry = entry
6299 self.ctx = ctx
6300 Z3_func_entry_inc_ref(self.ctx.ref(), self.entry)
6301
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 6305 of file z3py.py.

6305 def __del__(self):
6306 if self.ctx.ref() is not None and Z3_func_entry_dec_ref is not None:
6307 Z3_func_entry_dec_ref(self.ctx.ref(), self.entry)
6308
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 6302 of file z3py.py.

6302 def __deepcopy__(self, memo={}):
6303 return FuncEntry(self.entry, self.ctx)
6304

◆ __repr__()

__repr__ ( self)

Definition at line 6399 of file z3py.py.

6399 def __repr__(self):
6400 return repr(self.as_list())
6401
6402

◆ 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 6327 of file z3py.py.

6327 def arg_value(self, idx):
6328 """Return the value of argument `idx`.
6329
6330 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6331 >>> s = Solver()
6332 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6333 >>> s.check()
6334 sat
6335 >>> m = s.model()
6336 >>> f_i = m[f]
6337 >>> f_i.num_entries()
6338 1
6339 >>> e = f_i.entry(0)
6340 >>> e
6341 [1, 2, 20]
6342 >>> e.num_args()
6343 2
6344 >>> e.arg_value(0)
6345 1
6346 >>> e.arg_value(1)
6347 2
6348 >>> try:
6349 ... e.arg_value(2)
6350 ... except IndexError:
6351 ... print("index error")
6352 index error
6353 """
6354 if idx >= self.num_args():
6355 raise IndexError
6356 return _to_expr_ref(Z3_func_entry_get_arg(self.ctx.ref(), self.entry, idx), self.ctx)
6357
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 6380 of file z3py.py.

6380 def as_list(self):
6381 """Return entry `self` as a Python list.
6382 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6383 >>> s = Solver()
6384 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6385 >>> s.check()
6386 sat
6387 >>> m = s.model()
6388 >>> f_i = m[f]
6389 >>> f_i.num_entries()
6390 1
6391 >>> e = f_i.entry(0)
6392 >>> e.as_list()
6393 [1, 2, 20]
6394 """
6395 args = [self.arg_value(i) for i in range(self.num_args())]
6396 args.append(self.value())
6397 return args
6398

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 6309 of file z3py.py.

6309 def num_args(self):
6310 """Return the number of arguments in the given entry.
6311
6312 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6313 >>> s = Solver()
6314 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6315 >>> s.check()
6316 sat
6317 >>> m = s.model()
6318 >>> f_i = m[f]
6319 >>> f_i.num_entries()
6320 1
6321 >>> e = f_i.entry(0)
6322 >>> e.num_args()
6323 2
6324 """
6325 return int(Z3_func_entry_get_num_args(self.ctx.ref(), self.entry))
6326
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 6358 of file z3py.py.

6358 def value(self):
6359 """Return the value of the function at point `self`.
6360
6361 >>> f = Function('f', IntSort(), IntSort(), IntSort())
6362 >>> s = Solver()
6363 >>> s.add(f(0, 1) == 10, f(1, 2) == 20, f(1, 0) == 10)
6364 >>> s.check()
6365 sat
6366 >>> m = s.model()
6367 >>> f_i = m[f]
6368 >>> f_i.num_entries()
6369 1
6370 >>> e = f_i.entry(0)
6371 >>> e
6372 [1, 2, 20]
6373 >>> e.num_args()
6374 2
6375 >>> e.value()
6376 20
6377 """
6378 return _to_expr_ref(Z3_func_entry_get_value(self.ctx.ref(), self.entry), self.ctx)
6379
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 6299 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(), ModelRef.project(), ModelRef.project_with_witness(), 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