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Public Member Functions | Data Fields
FuncInterp Class Reference
+ Inheritance diagram for FuncInterp:

Public Member Functions

 __init__ (self, f, ctx)
 
 __del__ (self)
 
 else_value (self)
 
 num_entries (self)
 
 arity (self)
 
 entry (self, idx)
 
 translate (self, other_ctx)
 
 __copy__ (self)
 
 __deepcopy__ (self, memo={})
 
 as_list (self)
 
 __repr__ (self)
 
- Public Member Functions inherited from Z3PPObject
 use_pp (self)
 

Data Fields

 f
 
 ctx
 
 model
 

Additional Inherited Members

- Protected Member Functions inherited from Z3PPObject
 _repr_html_ (self)
 

Detailed Description

Stores the interpretation of a function in a Z3 model.

Definition at line 6241 of file z3py.py.

Constructor & Destructor Documentation

◆ __init__()

__init__ (   self,
  f,
  ctx 
)

Definition at line 6244 of file z3py.py.

6244 def __init__(self, f, ctx):
6245 self.f = f
6246 self.ctx = ctx
6247 if self.f is not None:
6248 Z3_func_interp_inc_ref(self.ctx.ref(), self.f)
6249
void Z3_API Z3_func_interp_inc_ref(Z3_context c, Z3_func_interp f)
Increment the reference counter of the given Z3_func_interp object.

◆ __del__()

__del__ (   self)

Definition at line 6250 of file z3py.py.

6250 def __del__(self):
6251 if self.f is not None and self.ctx.ref() is not None and Z3_func_interp_dec_ref is not None:
6252 Z3_func_interp_dec_ref(self.ctx.ref(), self.f)
6253
void Z3_API Z3_func_interp_dec_ref(Z3_context c, Z3_func_interp f)
Decrement the reference counter of the given Z3_func_interp object.

Member Function Documentation

◆ __copy__()

__copy__ (   self)

Definition at line 6332 of file z3py.py.

6332 def __copy__(self):
6333 return self.translate(self.ctx)
6334

◆ __deepcopy__()

__deepcopy__ (   self,
  memo = {} 
)

Definition at line 6335 of file z3py.py.

6335 def __deepcopy__(self, memo={}):
6336 return self.translate(self.ctx)
6337

◆ __repr__()

__repr__ (   self)

Definition at line 6355 of file z3py.py.

6355 def __repr__(self):
6356 return obj_to_string(self)
6357
6358

◆ arity()

arity (   self)
Return the number of arguments for each entry in the function interpretation `self`.

>>> f = Function('f', IntSort(), IntSort())
>>> s = Solver()
>>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
>>> s.check()
sat
>>> m = s.model()
>>> m[f].arity()
1

Definition at line 6293 of file z3py.py.

6293 def arity(self):
6294 """Return the number of arguments for each entry in the function interpretation `self`.
6295
6296 >>> f = Function('f', IntSort(), IntSort())
6297 >>> s = Solver()
6298 >>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
6299 >>> s.check()
6300 sat
6301 >>> m = s.model()
6302 >>> m[f].arity()
6303 1
6304 """
6305 return int(Z3_func_interp_get_arity(self.ctx.ref(), self.f))
6306
unsigned Z3_API Z3_func_interp_get_arity(Z3_context c, Z3_func_interp f)
Return the arity (number of arguments) of the given function interpretation.

◆ as_list()

as_list (   self)
Return the function interpretation as a Python list.
>>> f = Function('f', IntSort(), IntSort())
>>> s = Solver()
>>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
>>> s.check()
sat
>>> m = s.model()
>>> m[f]
[2 -> 0, else -> 1]
>>> m[f].as_list()
[[2, 0], 1]

Definition at line 6338 of file z3py.py.

6338 def as_list(self):
6339 """Return the function interpretation as a Python list.
6340 >>> f = Function('f', IntSort(), IntSort())
6341 >>> s = Solver()
6342 >>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
6343 >>> s.check()
6344 sat
6345 >>> m = s.model()
6346 >>> m[f]
6347 [2 -> 0, else -> 1]
6348 >>> m[f].as_list()
6349 [[2, 0], 1]
6350 """
6351 r = [self.entry(i).as_list() for i in range(self.num_entries())]
6352 r.append(self.else_value())
6353 return r
6354

Referenced by FuncEntry.__repr__(), and FuncInterp.as_list().

◆ else_value()

else_value (   self)
Return the `else` value for a function interpretation.
Return None if Z3 did not specify the `else` value for
this object.

>>> f = Function('f', IntSort(), IntSort())
>>> s = Solver()
>>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
>>> s.check()
sat
>>> m = s.model()
>>> m[f]
[2 -> 0, else -> 1]
>>> m[f].else_value()
1

Definition at line 6254 of file z3py.py.

6254 def else_value(self):
6255 """
6256 Return the `else` value for a function interpretation.
6257 Return None if Z3 did not specify the `else` value for
6258 this object.
6259
6260 >>> f = Function('f', IntSort(), IntSort())
6261 >>> s = Solver()
6262 >>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
6263 >>> s.check()
6264 sat
6265 >>> m = s.model()
6266 >>> m[f]
6267 [2 -> 0, else -> 1]
6268 >>> m[f].else_value()
6269 1
6270 """
6271 r = Z3_func_interp_get_else(self.ctx.ref(), self.f)
6272 if r:
6273 return _to_expr_ref(r, self.ctx)
6274 else:
6275 return None
6276
Z3_ast Z3_API Z3_func_interp_get_else(Z3_context c, Z3_func_interp f)
Return the 'else' value of the given function interpretation.

Referenced by FuncInterp.as_list().

◆ entry()

entry (   self,
  idx 
)
Return an entry at position `idx < self.num_entries()` in the function interpretation `self`.

>>> f = Function('f', IntSort(), IntSort())
>>> s = Solver()
>>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
>>> s.check()
sat
>>> m = s.model()
>>> m[f]
[2 -> 0, else -> 1]
>>> m[f].num_entries()
1
>>> m[f].entry(0)
[2, 0]

Definition at line 6307 of file z3py.py.

6307 def entry(self, idx):
6308 """Return an entry at position `idx < self.num_entries()` in the function interpretation `self`.
6309
6310 >>> f = Function('f', IntSort(), IntSort())
6311 >>> s = Solver()
6312 >>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
6313 >>> s.check()
6314 sat
6315 >>> m = s.model()
6316 >>> m[f]
6317 [2 -> 0, else -> 1]
6318 >>> m[f].num_entries()
6319 1
6320 >>> m[f].entry(0)
6321 [2, 0]
6322 """
6323 if idx >= self.num_entries():
6324 raise IndexError
6325 return FuncEntry(Z3_func_interp_get_entry(self.ctx.ref(), self.f, idx), self.ctx)
6326
Z3_func_entry Z3_API Z3_func_interp_get_entry(Z3_context c, Z3_func_interp f, unsigned i)
Return a "point" of the given function interpretation. It represents the value of f in a particular p...

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

◆ num_entries()

num_entries (   self)
Return the number of entries/points in the function interpretation `self`.

>>> f = Function('f', IntSort(), IntSort())
>>> s = Solver()
>>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
>>> s.check()
sat
>>> m = s.model()
>>> m[f]
[2 -> 0, else -> 1]
>>> m[f].num_entries()
1

Definition at line 6277 of file z3py.py.

6277 def num_entries(self):
6278 """Return the number of entries/points in the function interpretation `self`.
6279
6280 >>> f = Function('f', IntSort(), IntSort())
6281 >>> s = Solver()
6282 >>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
6283 >>> s.check()
6284 sat
6285 >>> m = s.model()
6286 >>> m[f]
6287 [2 -> 0, else -> 1]
6288 >>> m[f].num_entries()
6289 1
6290 """
6291 return int(Z3_func_interp_get_num_entries(self.ctx.ref(), self.f))
6292
unsigned Z3_API Z3_func_interp_get_num_entries(Z3_context c, Z3_func_interp f)
Return the number of entries in the given function interpretation.

Referenced by FuncInterp.as_list(), and FuncInterp.entry().

◆ translate()

translate (   self,
  other_ctx 
)
Copy model 'self' to context 'other_ctx'.

Definition at line 6327 of file z3py.py.

6327 def translate(self, other_ctx):
6328 """Copy model 'self' to context 'other_ctx'.
6329 """
6330 return ModelRef(Z3_model_translate(self.ctx.ref(), self.model, other_ctx.ref()), other_ctx)
6331
Z3_model Z3_API Z3_model_translate(Z3_context c, Z3_model m, Z3_context dst)
translate model from context c to context dst.

Referenced by AstRef.__copy__(), Goal.__copy__(), AstVector.__copy__(), FuncInterp.__copy__(), ModelRef.__copy__(), Goal.__deepcopy__(), AstVector.__deepcopy__(), FuncInterp.__deepcopy__(), and ModelRef.__deepcopy__().

Field Documentation

◆ ctx

ctx

Definition at line 6246 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().

◆ f

f

◆ model

model