Public Member Functions | |
def | __init__ (self, m, ctx) |
def | __del__ (self) |
def | __repr__ (self) |
def | sexpr (self) |
def | eval (self, t, model_completion=False) |
def | evaluate (self, t, model_completion=False) |
def | __len__ (self) |
def | get_interp (self, decl) |
def | num_sorts (self) |
def | get_sort (self, idx) |
def | sorts (self) |
def | get_universe (self, s) |
def | __getitem__ (self, idx) |
def | decls (self) |
def | translate (self, target) |
def | __copy__ (self) |
def | __deepcopy__ (self, memo={}) |
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def | use_pp (self) |
Data Fields | |
model | |
ctx | |
Model/Solution of a satisfiability problem (aka system of constraints).
def __copy__ | ( | self | ) |
def __deepcopy__ | ( | self, | |
memo = {} |
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def __getitem__ | ( | self, | |
idx | |||
) |
If `idx` is an integer, then the declaration at position `idx` in the model `self` is returned. If `idx` is a declaration, then the actual interpretation is returned. The elements can be retrieved using position or the actual declaration. >>> f = Function('f', IntSort(), IntSort()) >>> x = Int('x') >>> s = Solver() >>> s.add(x > 0, x < 2, f(x) == 0) >>> s.check() sat >>> m = s.model() >>> len(m) 2 >>> m[0] x >>> m[1] f >>> m[x] 1 >>> m[f] [else -> 0] >>> for d in m: print("%s -> %s" % (d, m[d])) x -> 1 f -> [else -> 0]
Definition at line 6200 of file z3py.py.
def __len__ | ( | self | ) |
Return the number of constant and function declarations in the model `self`. >>> f = Function('f', IntSort(), IntSort()) >>> x = Int('x') >>> s = Solver() >>> s.add(x > 0, f(x) != x) >>> s.check() sat >>> m = s.model() >>> len(m) 2
Definition at line 6076 of file z3py.py.
def __repr__ | ( | self | ) |
def decls | ( | self | ) |
def eval | ( | self, | |
t, | |||
model_completion = False |
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) |
Evaluate the expression `t` in the model `self`. If `model_completion` is enabled, then a default interpretation is automatically added for symbols that do not have an interpretation in the model `self`. >>> x = Int('x') >>> s = Solver() >>> s.add(x > 0, x < 2) >>> s.check() sat >>> m = s.model() >>> m.eval(x + 1) 2 >>> m.eval(x == 1) True >>> y = Int('y') >>> m.eval(y + x) 1 + y >>> m.eval(y) y >>> m.eval(y, model_completion=True) 0 >>> # Now, m contains an interpretation for y >>> m.eval(y + x) 1
Definition at line 6021 of file z3py.py.
Referenced by ModelRef.evaluate().
def evaluate | ( | self, | |
t, | |||
model_completion = False |
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) |
Alias for `eval`. >>> x = Int('x') >>> s = Solver() >>> s.add(x > 0, x < 2) >>> s.check() sat >>> m = s.model() >>> m.evaluate(x + 1) 2 >>> m.evaluate(x == 1) True >>> y = Int('y') >>> m.evaluate(y + x) 1 + y >>> m.evaluate(y) y >>> m.evaluate(y, model_completion=True) 0 >>> # Now, m contains an interpretation for y >>> m.evaluate(y + x) 1
Definition at line 6050 of file z3py.py.
def get_interp | ( | self, | |
decl | |||
) |
Return the interpretation for a given declaration or constant. >>> f = Function('f', IntSort(), IntSort()) >>> x = Int('x') >>> s = Solver() >>> s.add(x > 0, x < 2, f(x) == 0) >>> s.check() sat >>> m = s.model() >>> m[x] 1 >>> m[f] [else -> 0]
Definition at line 6091 of file z3py.py.
Referenced by ModelRef.__getitem__(), and ModelRef.get_interp().
def get_sort | ( | self, | |
idx | |||
) |
Return the uninterpreted sort at position `idx` < self.num_sorts(). >>> A = DeclareSort('A') >>> B = DeclareSort('B') >>> a1, a2 = Consts('a1 a2', A) >>> b1, b2 = Consts('b1 b2', B) >>> s = Solver() >>> s.add(a1 != a2, b1 != b2) >>> s.check() sat >>> m = s.model() >>> m.num_sorts() 2 >>> m.get_sort(0) A >>> m.get_sort(1) B
Definition at line 6140 of file z3py.py.
Referenced by ModelRef.sorts().
def get_universe | ( | self, | |
s | |||
) |
Return the interpretation for the uninterpreted sort `s` in the model `self`. >>> A = DeclareSort('A') >>> a, b = Consts('a b', A) >>> s = Solver() >>> s.add(a != b) >>> s.check() sat >>> m = s.model() >>> m.get_universe(A) [A!val!0, A!val!1]
Definition at line 6180 of file z3py.py.
Referenced by ModelRef.__getitem__().
def num_sorts | ( | self | ) |
Return the number of uninterpreted sorts that contain an interpretation in the model `self`. >>> A = DeclareSort('A') >>> a, b = Consts('a b', A) >>> s = Solver() >>> s.add(a != b) >>> s.check() sat >>> m = s.model() >>> m.num_sorts() 1
Definition at line 6125 of file z3py.py.
Referenced by ModelRef.get_sort(), and ModelRef.sorts().
def sexpr | ( | self | ) |
Return a textual representation of the s-expression representing the model.
Definition at line 6017 of file z3py.py.
Referenced by Fixedpoint.__repr__(), and Optimize.__repr__().
def sorts | ( | self | ) |
Return all uninterpreted sorts that have an interpretation in the model `self`. >>> A = DeclareSort('A') >>> B = DeclareSort('B') >>> a1, a2 = Consts('a1 a2', A) >>> b1, b2 = Consts('b1 b2', B) >>> s = Solver() >>> s.add(a1 != a2, b1 != b2) >>> s.check() sat >>> m = s.model() >>> m.sorts() [A, B]
Definition at line 6163 of file z3py.py.
def translate | ( | self, | |
target | |||
) |
Translate `self` to the context `target`. That is, return a copy of `self` in the context `target`.
Definition at line 6263 of file z3py.py.
Referenced by ModelRef.__copy__(), Solver.__copy__(), ModelRef.__deepcopy__(), and Solver.__deepcopy__().
ctx |
Definition at line 6007 of file z3py.py.
Referenced by Probe.__call__(), ModelRef.__copy__(), Solver.__copy__(), ModelRef.__deepcopy__(), Statistics.__deepcopy__(), Solver.__deepcopy__(), Fixedpoint.__deepcopy__(), Optimize.__deepcopy__(), ApplyResult.__deepcopy__(), Tactic.__deepcopy__(), Probe.__deepcopy__(), ModelRef.__del__(), Statistics.__del__(), Solver.__del__(), Fixedpoint.__del__(), Optimize.__del__(), ApplyResult.__del__(), Tactic.__del__(), Probe.__del__(), Probe.__eq__(), Probe.__ge__(), ModelRef.__getitem__(), Statistics.__getitem__(), ApplyResult.__getitem__(), Probe.__gt__(), Probe.__le__(), ModelRef.__len__(), Statistics.__len__(), ApplyResult.__len__(), Probe.__lt__(), Probe.__ne__(), Statistics.__repr__(), Fixedpoint.add_cover(), Fixedpoint.add_rule(), Optimize.add_soft(), Tactic.apply(), ApplyResult.as_expr(), Solver.assert_and_track(), Optimize.assert_and_track(), Solver.assert_exprs(), Fixedpoint.assert_exprs(), Optimize.assert_exprs(), Solver.assertions(), Optimize.assertions(), Solver.check(), Optimize.check(), UserPropagateBase.conflict(), Solver.consequences(), UserPropagateBase.ctx_ref(), ModelRef.decls(), Solver.dimacs(), ModelRef.eval(), Solver.from_file(), Optimize.from_file(), Solver.from_string(), Optimize.from_string(), Fixedpoint.get_answer(), Fixedpoint.get_assertions(), Fixedpoint.get_cover_delta(), Fixedpoint.get_ground_sat_answer(), ModelRef.get_interp(), Statistics.get_key_value(), Fixedpoint.get_num_levels(), Fixedpoint.get_rule_names_along_trace(), Fixedpoint.get_rules(), Fixedpoint.get_rules_along_trace(), ModelRef.get_sort(), ModelRef.get_universe(), Solver.help(), Fixedpoint.help(), Optimize.help(), Tactic.help(), Solver.import_model_converter(), Statistics.keys(), Optimize.maximize(), Optimize.minimize(), Solver.model(), Optimize.model(), Solver.non_units(), Solver.num_scopes(), ModelRef.num_sorts(), Optimize.objectives(), Solver.param_descrs(), Fixedpoint.param_descrs(), Optimize.param_descrs(), Tactic.param_descrs(), Fixedpoint.parse_file(), Fixedpoint.parse_string(), Solver.pop(), Optimize.pop(), Solver.proof(), Solver.push(), Optimize.push(), Fixedpoint.query(), Fixedpoint.query_from_lvl(), Solver.reason_unknown(), Fixedpoint.reason_unknown(), Optimize.reason_unknown(), Fixedpoint.register_relation(), Solver.reset(), Solver.set(), Fixedpoint.set(), Optimize.set(), Fixedpoint.set_predicate_representation(), ModelRef.sexpr(), Solver.sexpr(), Fixedpoint.sexpr(), Optimize.sexpr(), ApplyResult.sexpr(), Tactic.solver(), Solver.statistics(), Fixedpoint.statistics(), Optimize.statistics(), Solver.to_smt2(), Fixedpoint.to_string(), Solver.trail(), Solver.trail_levels(), ModelRef.translate(), Solver.translate(), Solver.units(), Solver.unsat_core(), Optimize.unsat_core(), and Fixedpoint.update_rule().
model |
Definition at line 6006 of file z3py.py.
Referenced by ModelRef.__del__(), ModelRef.__getitem__(), ModelRef.__len__(), ModelRef.decls(), ModelRef.eval(), ModelRef.get_interp(), ModelRef.get_sort(), ModelRef.get_universe(), ModelRef.num_sorts(), ModelRef.sexpr(), FuncInterp.translate(), and ModelRef.translate().