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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 = f
 
 ctx = 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 6295 of file z3py.py.

Constructor & Destructor Documentation

◆ __init__()

__init__ ( self,
f,
ctx )

Definition at line 6298 of file z3py.py.

6298 def __init__(self, f, ctx):
6299 self.f = f
6300 self.ctx = ctx
6301 if self.f is not None:
6302 Z3_func_interp_inc_ref(self.ctx.ref(), self.f)
6303
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 6304 of file z3py.py.

6304 def __del__(self):
6305 if self.f is not None and self.ctx.ref() is not None and Z3_func_interp_dec_ref is not None:
6306 Z3_func_interp_dec_ref(self.ctx.ref(), self.f)
6307
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 6386 of file z3py.py.

6386 def __copy__(self):
6387 return self.translate(self.ctx)
6388

◆ __deepcopy__()

__deepcopy__ ( self,
memo = {} )

Definition at line 6389 of file z3py.py.

6389 def __deepcopy__(self, memo={}):
6390 return self.translate(self.ctx)
6391

◆ __repr__()

__repr__ ( self)

Definition at line 6409 of file z3py.py.

6409 def __repr__(self):
6410 return obj_to_string(self)
6411
6412

◆ 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 6347 of file z3py.py.

6347 def arity(self):
6348 """Return the number of arguments for each entry in the function interpretation `self`.
6349
6350 >>> f = Function('f', IntSort(), IntSort())
6351 >>> s = Solver()
6352 >>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
6353 >>> s.check()
6354 sat
6355 >>> m = s.model()
6356 >>> m[f].arity()
6357 1
6358 """
6359 return int(Z3_func_interp_get_arity(self.ctx.ref(), self.f))
6360
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 6392 of file z3py.py.

6392 def as_list(self):
6393 """Return the function interpretation as a Python list.
6394 >>> f = Function('f', IntSort(), IntSort())
6395 >>> s = Solver()
6396 >>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
6397 >>> s.check()
6398 sat
6399 >>> m = s.model()
6400 >>> m[f]
6401 [2 -> 0, else -> 1]
6402 >>> m[f].as_list()
6403 [[2, 0], 1]
6404 """
6405 r = [self.entry(i).as_list() for i in range(self.num_entries())]
6406 r.append(self.else_value())
6407 return r
6408

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 6308 of file z3py.py.

6308 def else_value(self):
6309 """
6310 Return the `else` value for a function interpretation.
6311 Return None if Z3 did not specify the `else` value for
6312 this object.
6313
6314 >>> f = Function('f', IntSort(), IntSort())
6315 >>> s = Solver()
6316 >>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
6317 >>> s.check()
6318 sat
6319 >>> m = s.model()
6320 >>> m[f]
6321 [2 -> 0, else -> 1]
6322 >>> m[f].else_value()
6323 1
6324 """
6325 r = Z3_func_interp_get_else(self.ctx.ref(), self.f)
6326 if r:
6327 return _to_expr_ref(r, self.ctx)
6328 else:
6329 return None
6330
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 6361 of file z3py.py.

6361 def entry(self, idx):
6362 """Return an entry at position `idx < self.num_entries()` in the function interpretation `self`.
6363
6364 >>> f = Function('f', IntSort(), IntSort())
6365 >>> s = Solver()
6366 >>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
6367 >>> s.check()
6368 sat
6369 >>> m = s.model()
6370 >>> m[f]
6371 [2 -> 0, else -> 1]
6372 >>> m[f].num_entries()
6373 1
6374 >>> m[f].entry(0)
6375 [2, 0]
6376 """
6377 if idx >= self.num_entries():
6378 raise IndexError
6379 return FuncEntry(Z3_func_interp_get_entry(self.ctx.ref(), self.f, idx), self.ctx)
6380
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 6331 of file z3py.py.

6331 def num_entries(self):
6332 """Return the number of entries/points in the function interpretation `self`.
6333
6334 >>> f = Function('f', IntSort(), IntSort())
6335 >>> s = Solver()
6336 >>> s.add(f(0) == 1, f(1) == 1, f(2) == 0)
6337 >>> s.check()
6338 sat
6339 >>> m = s.model()
6340 >>> m[f]
6341 [2 -> 0, else -> 1]
6342 >>> m[f].num_entries()
6343 1
6344 """
6345 return int(Z3_func_interp_get_num_entries(self.ctx.ref(), self.f))
6346
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 6381 of file z3py.py.

6381 def translate(self, other_ctx):
6382 """Copy model 'self' to context 'other_ctx'.
6383 """
6384 return ModelRef(Z3_model_translate(self.ctx.ref(), self.model, other_ctx.ref()), other_ctx)
6385
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__(), AstVector.__copy__(), FuncInterp.__copy__(), Goal.__copy__(), ModelRef.__copy__(), AstVector.__deepcopy__(), FuncInterp.__deepcopy__(), Goal.__deepcopy__(), and ModelRef.__deepcopy__().

Field Documentation

◆ ctx

ctx = ctx

Definition at line 6300 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().

◆ f

◆ model