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 7398 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 7435 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 7406 of file z3py.py.
def assert_exprs | ( | self, | |
* | args | ||
) |
Assert constraints as background axioms for the optimize solver.
Definition at line 7386 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 7454 of file z3py.py.
def minimize | ( | self, | |
arg | |||
) |
Add objective function to minimize.
Definition at line 7458 of file z3py.py.
def model | ( | self | ) |
Return a model for the last check().
Definition at line 7483 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 7533 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 7361 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 7362 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().