Expressions. More...
Public Member Functions | |
as_ast (self) | |
get_id (self) | |
sort (self) | |
sort_kind (self) | |
__eq__ (self, other) | |
__hash__ (self) | |
__ne__ (self, other) | |
params (self) | |
decl (self) | |
num_args (self) | |
arg (self, idx) | |
children (self) | |
from_string (self, s) | |
serialize (self) | |
![]() | |
__init__ (self, ast, ctx=None) | |
__del__ (self) | |
__deepcopy__ (self, memo={}) | |
__str__ (self) | |
__repr__ (self) | |
__nonzero__ (self) | |
__bool__ (self) | |
sexpr (self) | |
ctx_ref (self) | |
eq (self, other) | |
translate (self, target) | |
__copy__ (self) | |
hash (self) | |
![]() | |
use_pp (self) | |
Data Fields | |
ctx | |
![]() | |
ast = ast | |
ctx = _get_ctx(ctx) | |
Additional Inherited Members | |
![]() | |
_repr_html_ (self) | |
Expressions.
Constraints, formulas and terms are expressions in Z3. Expressions are ASTs. Every expression has a sort. There are three main kinds of expressions: function applications, quantifiers and bounded variables. A constant is a function application with 0 arguments. For quantifier free problems, all expressions are function applications.
__eq__ | ( | self, | |
other ) |
Return a Z3 expression that represents the constraint `self == other`. If `other` is `None`, then this method simply returns `False`. >>> a = Int('a') >>> b = Int('b') >>> a == b a == b >>> a is None False
Reimplemented from AstRef.
Definition at line 1019 of file z3py.py.
Referenced by CheckSatResult.__ne__().
__hash__ | ( | self | ) |
__ne__ | ( | self, | |
other ) |
Return a Z3 expression that represents the constraint `self != other`. If `other` is `None`, then this method simply returns `True`. >>> a = Int('a') >>> b = Int('b') >>> a != b a != b >>> a is not None True
Definition at line 1040 of file z3py.py.
arg | ( | self, | |
idx ) |
Return argument `idx` of the application `self`. This method assumes that `self` is a function application with at least `idx+1` arguments. >>> a = Int('a') >>> b = Int('b') >>> f = Function('f', IntSort(), IntSort(), IntSort(), IntSort()) >>> t = f(a, b, 0) >>> t.arg(0) a >>> t.arg(1) b >>> t.arg(2) 0
Definition at line 1092 of file z3py.py.
Referenced by AstRef.__bool__(), and ExprRef.children().
as_ast | ( | self | ) |
Return a pointer to the corresponding C Z3_ast object.
Reimplemented from AstRef.
Reimplemented in PatternRef, and QuantifierRef.
Definition at line 990 of file z3py.py.
Referenced by AstRef.__del__(), BitVecRef.__invert__(), ArithRef.__neg__(), BitVecRef.__neg__(), ExprRef.arg(), BitVecNumRef.as_binary_string(), IntNumRef.as_binary_string(), AlgebraicNumRef.as_decimal(), RatNumRef.as_decimal(), BitVecNumRef.as_string(), IntNumRef.as_string(), RatNumRef.as_string(), ExprRef.decl(), ArrayRef.default(), RatNumRef.denominator(), AstRef.eq(), AstRef.get_id(), ExprRef.get_id(), FuncDeclRef.get_id(), PatternRef.get_id(), QuantifierRef.get_id(), SortRef.get_id(), AstRef.hash(), AlgebraicNumRef.index(), ExprRef.num_args(), AlgebraicNumRef.poly(), AstRef.sexpr(), and AstRef.translate().
children | ( | self | ) |
Return a list containing the children of the given expression >>> a = Int('a') >>> b = Int('b') >>> f = Function('f', IntSort(), IntSort(), IntSort(), IntSort()) >>> t = f(a, b, 0) >>> t.children() [a, b, 0]
Reimplemented in QuantifierRef.
Definition at line 1113 of file z3py.py.
decl | ( | self | ) |
Return the Z3 function declaration associated with a Z3 application. >>> f = Function('f', IntSort(), IntSort()) >>> a = Int('a') >>> t = f(a) >>> eq(t.decl(), f) True >>> (a + 1).decl() +
Definition at line 1061 of file z3py.py.
Referenced by ExprRef.params().
from_string | ( | self, | |
s ) |
get_id | ( | self | ) |
Return unique identifier for object. It can be used for hash-tables and maps.
Reimplemented from AstRef.
Reimplemented in PatternRef, and QuantifierRef.
Definition at line 993 of file z3py.py.
num_args | ( | self | ) |
Return the number of arguments of a Z3 application. >>> a = Int('a') >>> b = Int('b') >>> (a + b).num_args() 2 >>> f = Function('f', IntSort(), IntSort(), IntSort(), IntSort()) >>> t = f(a, b, 0) >>> t.num_args() 3
Definition at line 1076 of file z3py.py.
Referenced by AstRef.__bool__(), ExprRef.arg(), FuncEntry.arg_value(), FuncEntry.as_list(), and ExprRef.children().
params | ( | self | ) |
Definition at line 1058 of file z3py.py.
Referenced by ParamsRef.__deepcopy__(), ParamsRef.__del__(), ParamsRef.__repr__(), ExprRef.params(), ParamsRef.set(), and ParamsRef.validate().
serialize | ( | self | ) |
sort | ( | self | ) |
Return the sort of expression `self`. >>> x = Int('x') >>> (x + 1).sort() Int >>> y = Real('y') >>> (x + y).sort() Real
Reimplemented in ArithRef, ArrayRef, BitVecRef, BoolRef, DatatypeRef, FiniteDomainRef, FPRef, QuantifierRef, and SeqRef.
Definition at line 996 of file z3py.py.
Referenced by ArrayRef.domain(), ArrayRef.domain_n(), ArithRef.is_int(), ArithRef.is_real(), ArrayRef.range(), BitVecRef.size(), and ExprRef.sort_kind().
sort_kind | ( | self | ) |
Shorthand for `self.sort().kind()`. >>> a = Array('a', IntSort(), IntSort()) >>> a.sort_kind() == Z3_ARRAY_SORT True >>> a.sort_kind() == Z3_INT_SORT False
Definition at line 1008 of file z3py.py.
ctx |
Definition at line 1006 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().