Z3
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ApplyResult Class Reference
Inheritance diagram for ApplyResult:

Public Member Functions

 __init__ (self, result, ctx)
 __deepcopy__ (self, memo={})
 __del__ (self)
 __len__ (self)
 __getitem__ (self, idx)
 __repr__ (self)
 sexpr (self)
 as_expr (self)
Public Member Functions inherited from Z3PPObject
 use_pp (self)

Data Fields

 result = result
 ctx = ctx

Additional Inherited Members

Protected Member Functions inherited from Z3PPObject
 _repr_html_ (self)

Detailed Description

An ApplyResult object contains the subgoals produced by a tactic when applied to a goal.
It also contains model and proof converters.

Definition at line 8269 of file z3py.py.

Constructor & Destructor Documentation

◆ __init__()

__init__ ( self,
result,
ctx )

Definition at line 8274 of file z3py.py.

8274 def __init__(self, result, ctx):
8275 self.result = result
8276 self.ctx = ctx
8277 Z3_apply_result_inc_ref(self.ctx.ref(), self.result)
8278
void Z3_API Z3_apply_result_inc_ref(Z3_context c, Z3_apply_result r)
Increment the reference counter of the given Z3_apply_result object.

◆ __del__()

__del__ ( self)

Definition at line 8282 of file z3py.py.

8282 def __del__(self):
8283 if self.ctx.ref() is not None and Z3_apply_result_dec_ref is not None:
8284 Z3_apply_result_dec_ref(self.ctx.ref(), self.result)
8285
void Z3_API Z3_apply_result_dec_ref(Z3_context c, Z3_apply_result r)
Decrement the reference counter of the given Z3_apply_result object.

Member Function Documentation

◆ __deepcopy__()

__deepcopy__ ( self,
memo = {} )

Definition at line 8279 of file z3py.py.

8279 def __deepcopy__(self, memo={}):
8280 return ApplyResult(self.result, self.ctx)
8281

◆ __getitem__()

__getitem__ ( self,
idx )
Return one of the subgoals stored in ApplyResult object `self`.

>>> a, b = Ints('a b')
>>> g = Goal()
>>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
>>> t = Tactic('split-clause')
>>> r = t(g)
>>> r[0]
[a == 0, Or(b == 0, b == 1), a > b]
>>> r[1]
[a == 1, Or(b == 0, b == 1), a > b]

Definition at line 8305 of file z3py.py.

8305 def __getitem__(self, idx):
8306 """Return one of the subgoals stored in ApplyResult object `self`.
8307
8308 >>> a, b = Ints('a b')
8309 >>> g = Goal()
8310 >>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
8311 >>> t = Tactic('split-clause')
8312 >>> r = t(g)
8313 >>> r[0]
8314 [a == 0, Or(b == 0, b == 1), a > b]
8315 >>> r[1]
8316 [a == 1, Or(b == 0, b == 1), a > b]
8317 """
8318 if idx >= len(self):
8319 raise IndexError
8320 return Goal(goal=Z3_apply_result_get_subgoal(self.ctx.ref(), self.result, idx), ctx=self.ctx)
8321
Z3_goal Z3_API Z3_apply_result_get_subgoal(Z3_context c, Z3_apply_result r, unsigned i)
Return one of the subgoals in the Z3_apply_result object returned by Z3_tactic_apply.

◆ __len__()

__len__ ( self)
Return the number of subgoals in `self`.

>>> a, b = Ints('a b')
>>> g = Goal()
>>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
>>> t = Tactic('split-clause')
>>> r = t(g)
>>> len(r)
2
>>> t = Then(Tactic('split-clause'), Tactic('split-clause'))
>>> len(t(g))
4
>>> t = Then(Tactic('split-clause'), Tactic('split-clause'), Tactic('propagate-values'))
>>> len(t(g))
1

Definition at line 8286 of file z3py.py.

8286 def __len__(self):
8287 """Return the number of subgoals in `self`.
8288
8289 >>> a, b = Ints('a b')
8290 >>> g = Goal()
8291 >>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
8292 >>> t = Tactic('split-clause')
8293 >>> r = t(g)
8294 >>> len(r)
8295 2
8296 >>> t = Then(Tactic('split-clause'), Tactic('split-clause'))
8297 >>> len(t(g))
8298 4
8299 >>> t = Then(Tactic('split-clause'), Tactic('split-clause'), Tactic('propagate-values'))
8300 >>> len(t(g))
8301 1
8302 """
8303 return int(Z3_apply_result_get_num_subgoals(self.ctx.ref(), self.result))
8304
unsigned Z3_API Z3_apply_result_get_num_subgoals(Z3_context c, Z3_apply_result r)
Return the number of subgoals in the Z3_apply_result object returned by Z3_tactic_apply.

◆ __repr__()

__repr__ ( self)

Definition at line 8322 of file z3py.py.

8322 def __repr__(self):
8323 return obj_to_string(self)
8324

◆ as_expr()

as_expr ( self)
Return a Z3 expression consisting of all subgoals.

>>> x = Int('x')
>>> g = Goal()
>>> g.add(x > 1)
>>> g.add(Or(x == 2, x == 3))
>>> r = Tactic('simplify')(g)
>>> r
[[Not(x <= 1), Or(x == 2, x == 3)]]
>>> r.as_expr()
And(Not(x <= 1), Or(x == 2, x == 3))
>>> r = Tactic('split-clause')(g)
>>> r
[[x > 1, x == 2], [x > 1, x == 3]]
>>> r.as_expr()
Or(And(x > 1, x == 2), And(x > 1, x == 3))

Definition at line 8329 of file z3py.py.

8329 def as_expr(self):
8330 """Return a Z3 expression consisting of all subgoals.
8331
8332 >>> x = Int('x')
8333 >>> g = Goal()
8334 >>> g.add(x > 1)
8335 >>> g.add(Or(x == 2, x == 3))
8336 >>> r = Tactic('simplify')(g)
8337 >>> r
8338 [[Not(x <= 1), Or(x == 2, x == 3)]]
8339 >>> r.as_expr()
8340 And(Not(x <= 1), Or(x == 2, x == 3))
8341 >>> r = Tactic('split-clause')(g)
8342 >>> r
8343 [[x > 1, x == 2], [x > 1, x == 3]]
8344 >>> r.as_expr()
8345 Or(And(x > 1, x == 2), And(x > 1, x == 3))
8346 """
8347 sz = len(self)
8348 if sz == 0:
8349 return BoolVal(False, self.ctx)
8350 elif sz == 1:
8351 return self[0].as_expr()
8352 else:
8353 return Or([self[i].as_expr() for i in range(len(self))])
8354

◆ sexpr()

sexpr ( self)
Return a textual representation of the s-expression representing the set of subgoals in `self`.

Definition at line 8325 of file z3py.py.

8325 def sexpr(self):
8326 """Return a textual representation of the s-expression representing the set of subgoals in `self`."""
8327 return Z3_apply_result_to_string(self.ctx.ref(), self.result)
8328
Z3_string Z3_API Z3_apply_result_to_string(Z3_context c, Z3_apply_result r)
Convert the Z3_apply_result object returned by Z3_tactic_apply into a string.

Field Documentation

◆ ctx

ctx = ctx

Definition at line 8276 of file z3py.py.

◆ result

result = result

Definition at line 8275 of file z3py.py.