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 8264 of file z3py.py.

Constructor & Destructor Documentation

◆ __init__()

__init__ ( self,
result,
ctx )

Definition at line 8269 of file z3py.py.

8269 def __init__(self, result, ctx):
8270 self.result = result
8271 self.ctx = ctx
8272 Z3_apply_result_inc_ref(self.ctx.ref(), self.result)
8273
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 8277 of file z3py.py.

8277 def __del__(self):
8278 if self.ctx.ref() is not None and Z3_apply_result_dec_ref is not None:
8279 Z3_apply_result_dec_ref(self.ctx.ref(), self.result)
8280
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 8274 of file z3py.py.

8274 def __deepcopy__(self, memo={}):
8275 return ApplyResult(self.result, self.ctx)
8276

◆ __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 8300 of file z3py.py.

8300 def __getitem__(self, idx):
8301 """Return one of the subgoals stored in ApplyResult object `self`.
8302
8303 >>> a, b = Ints('a b')
8304 >>> g = Goal()
8305 >>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
8306 >>> t = Tactic('split-clause')
8307 >>> r = t(g)
8308 >>> r[0]
8309 [a == 0, Or(b == 0, b == 1), a > b]
8310 >>> r[1]
8311 [a == 1, Or(b == 0, b == 1), a > b]
8312 """
8313 if idx >= len(self):
8314 raise IndexError
8315 return Goal(goal=Z3_apply_result_get_subgoal(self.ctx.ref(), self.result, idx), ctx=self.ctx)
8316
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 8281 of file z3py.py.

8281 def __len__(self):
8282 """Return the number of subgoals in `self`.
8283
8284 >>> a, b = Ints('a b')
8285 >>> g = Goal()
8286 >>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
8287 >>> t = Tactic('split-clause')
8288 >>> r = t(g)
8289 >>> len(r)
8290 2
8291 >>> t = Then(Tactic('split-clause'), Tactic('split-clause'))
8292 >>> len(t(g))
8293 4
8294 >>> t = Then(Tactic('split-clause'), Tactic('split-clause'), Tactic('propagate-values'))
8295 >>> len(t(g))
8296 1
8297 """
8298 return int(Z3_apply_result_get_num_subgoals(self.ctx.ref(), self.result))
8299
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 8317 of file z3py.py.

8317 def __repr__(self):
8318 return obj_to_string(self)
8319

◆ 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 8324 of file z3py.py.

8324 def as_expr(self):
8325 """Return a Z3 expression consisting of all subgoals.
8326
8327 >>> x = Int('x')
8328 >>> g = Goal()
8329 >>> g.add(x > 1)
8330 >>> g.add(Or(x == 2, x == 3))
8331 >>> r = Tactic('simplify')(g)
8332 >>> r
8333 [[Not(x <= 1), Or(x == 2, x == 3)]]
8334 >>> r.as_expr()
8335 And(Not(x <= 1), Or(x == 2, x == 3))
8336 >>> r = Tactic('split-clause')(g)
8337 >>> r
8338 [[x > 1, x == 2], [x > 1, x == 3]]
8339 >>> r.as_expr()
8340 Or(And(x > 1, x == 2), And(x > 1, x == 3))
8341 """
8342 sz = len(self)
8343 if sz == 0:
8344 return BoolVal(False, self.ctx)
8345 elif sz == 1:
8346 return self[0].as_expr()
8347 else:
8348 return Or([self[i].as_expr() for i in range(len(self))])
8349

◆ sexpr()

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

Definition at line 8320 of file z3py.py.

8320 def sexpr(self):
8321 """Return a textual representation of the s-expression representing the set of subgoals in `self`."""
8322 return Z3_apply_result_to_string(self.ctx.ref(), self.result)
8323
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 8271 of file z3py.py.

◆ result

result = result

Definition at line 8270 of file z3py.py.