Public Member Functions | |
def | __init__ (self, ctx=None) |
def | __deepcopy__ (self, memo={}) |
def | __del__ (self) |
def | set (self, *args, **keys) |
def | help (self) |
def | param_descrs (self) |
def | assert_exprs (self, *args) |
def | add (self, *args) |
def | __iadd__ (self, fml) |
def | assert_and_track (self, a, p) |
def | add_soft (self, arg, weight="1", id=None) |
def | maximize (self, arg) |
def | minimize (self, arg) |
def | push (self) |
def | pop (self) |
def | check (self, *assumptions) |
def | reason_unknown (self) |
def | model (self) |
def | unsat_core (self) |
def | lower (self, obj) |
def | upper (self, obj) |
def | lower_values (self, obj) |
def | upper_values (self, obj) |
def | from_file (self, filename) |
def | from_string (self, s) |
def | assertions (self) |
def | objectives (self) |
def | __repr__ (self) |
def | sexpr (self) |
def | statistics (self) |
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def | use_pp (self) |
Data Fields | |
ctx | |
optimize | |
Optimize API provides methods for solving using objective functions and weighted soft constraints
def __init__ | ( | self, | |
ctx = None |
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) |
def __del__ | ( | self | ) |
def __deepcopy__ | ( | self, | |
memo = {} |
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) |
def __iadd__ | ( | self, | |
fml | |||
) |
def __repr__ | ( | self | ) |
def add | ( | self, | |
* | args | ||
) |
Assert constraints as background axioms for the optimize solver. Alias for assert_expr.
Definition at line 7400 of file z3py.py.
Referenced by Optimize.__iadd__().
def add_soft | ( | self, | |
arg, | |||
weight = "1" , |
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id = None |
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) |
Add soft constraint with optional weight and optional identifier. If no weight is supplied, then the penalty for violating the soft constraint is 1. Soft constraints are grouped by identifiers. Soft constraints that are added without identifiers are grouped by default.
Definition at line 7437 of file z3py.py.
def assert_and_track | ( | self, | |
a, | |||
p | |||
) |
Assert constraint `a` and track it in the unsat core using the Boolean constant `p`. If `p` is a string, it will be automatically converted into a Boolean constant. >>> x = Int('x') >>> p3 = Bool('p3') >>> s = Optimize() >>> s.assert_and_track(x > 0, 'p1') >>> s.assert_and_track(x != 1, 'p2') >>> s.assert_and_track(x < 0, p3) >>> print(s.check()) unsat >>> c = s.unsat_core() >>> len(c) 2 >>> Bool('p1') in c True >>> Bool('p2') in c False >>> p3 in c True
Definition at line 7408 of file z3py.py.
def assert_exprs | ( | self, | |
* | args | ||
) |
Assert constraints as background axioms for the optimize solver.
Definition at line 7388 of file z3py.py.
Referenced by Optimize.add().
def assertions | ( | self | ) |
def check | ( | self, | |
* | assumptions | ||
) |
def from_file | ( | self, | |
filename | |||
) |
def from_string | ( | self, | |
s | |||
) |
def help | ( | self | ) |
def lower | ( | self, | |
obj | |||
) |
def lower_values | ( | self, | |
obj | |||
) |
def maximize | ( | self, | |
arg | |||
) |
Add objective function to maximize.
Definition at line 7456 of file z3py.py.
def minimize | ( | self, | |
arg | |||
) |
Add objective function to minimize.
Definition at line 7460 of file z3py.py.
def model | ( | self | ) |
Return a model for the last check().
Definition at line 7485 of file z3py.py.
Referenced by FuncInterp.translate().
def objectives | ( | self | ) |
def param_descrs | ( | self | ) |
def pop | ( | self | ) |
def push | ( | self | ) |
def reason_unknown | ( | self | ) |
def set | ( | self, | |
* | args, | ||
** | keys | ||
) |
Set a configuration option. The method `help()` return a string containing all available options.
def sexpr | ( | self | ) |
Return a formatted string (in Lisp-like format) with all added constraints. We say the string is in s-expression format.
Definition at line 7535 of file z3py.py.
Referenced by Optimize.__repr__().
def statistics | ( | self | ) |
def unsat_core | ( | self | ) |
def upper | ( | self, | |
obj | |||
) |
def upper_values | ( | self, | |
obj | |||
) |
ctx |
Definition at line 7363 of file z3py.py.
Referenced by Probe.__call__(), Optimize.__deepcopy__(), ApplyResult.__deepcopy__(), Tactic.__deepcopy__(), Probe.__deepcopy__(), Optimize.__del__(), ApplyResult.__del__(), Tactic.__del__(), Probe.__del__(), Probe.__eq__(), Probe.__ge__(), ApplyResult.__getitem__(), Probe.__gt__(), Probe.__le__(), ApplyResult.__len__(), Probe.__lt__(), Probe.__ne__(), Optimize.add_soft(), Tactic.apply(), ApplyResult.as_expr(), Optimize.assert_and_track(), Optimize.assert_exprs(), Optimize.assertions(), Optimize.check(), Optimize.from_file(), Optimize.from_string(), Optimize.help(), Tactic.help(), Optimize.maximize(), Optimize.minimize(), Optimize.model(), Optimize.objectives(), Optimize.param_descrs(), Tactic.param_descrs(), Optimize.pop(), Optimize.push(), Optimize.reason_unknown(), Optimize.set(), Optimize.sexpr(), ApplyResult.sexpr(), Tactic.solver(), Optimize.statistics(), and Optimize.unsat_core().
optimize |
Definition at line 7364 of file z3py.py.
Referenced by Optimize.__deepcopy__(), Optimize.__del__(), Optimize.add_soft(), Optimize.assert_and_track(), Optimize.assert_exprs(), Optimize.assertions(), Optimize.check(), Optimize.from_file(), Optimize.from_string(), Optimize.help(), Optimize.maximize(), Optimize.minimize(), Optimize.model(), Optimize.objectives(), Optimize.param_descrs(), Optimize.pop(), Optimize.push(), Optimize.reason_unknown(), Optimize.set(), Optimize.sexpr(), Optimize.statistics(), and Optimize.unsat_core().