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Public Member Functions | Data Fields
ApplyResult Class Reference
+ Inheritance diagram for ApplyResult:

Public Member Functions

def __init__
 
def __deepcopy__
 
def __del__
 
def __len__
 
def __getitem__
 
def __repr__
 
def sexpr
 
def as_expr
 
- Public Member Functions inherited from Z3PPObject
def use_pp
 

Data Fields

 result
 
 ctx
 

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 7518 of file z3py.py.

Constructor & Destructor Documentation

def __init__ (   self,
  result,
  ctx 
)

Definition at line 7521 of file z3py.py.

7522  def __init__(self, result, ctx):
7523  self.result = result
7524  self.ctx = ctx
7525  Z3_apply_result_inc_ref(self.ctx.ref(), self.result)
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.
def __del__ (   self)

Definition at line 7529 of file z3py.py.

7530  def __del__(self):
7531  if self.ctx.ref() is not None:
7532  Z3_apply_result_dec_ref(self.ctx.ref(), self.result)
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

def __deepcopy__ (   self,
  memo = {} 
)

Definition at line 7526 of file z3py.py.

7527  def __deepcopy__(self, memo={}):
7528  return ApplyResult(self.result, self.ctx)
def __deepcopy__
Definition: z3py.py:7526
def __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 7552 of file z3py.py.

7553  def __getitem__(self, idx):
7554  """Return one of the subgoals stored in ApplyResult object `self`.
7555 
7556  >>> a, b = Ints('a b')
7557  >>> g = Goal()
7558  >>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
7559  >>> t = Tactic('split-clause')
7560  >>> r = t(g)
7561  >>> r[0]
7562  [a == 0, Or(b == 0, b == 1), a > b]
7563  >>> r[1]
7564  [a == 1, Or(b == 0, b == 1), a > b]
7565  """
7566  if idx >= len(self):
7567  raise IndexError
7568  return Goal(goal=Z3_apply_result_get_subgoal(self.ctx.ref(), self.result, idx), ctx=self.ctx)
def __getitem__
Definition: z3py.py:7552
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.
def __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 7533 of file z3py.py.

7534  def __len__(self):
7535  """Return the number of subgoals in `self`.
7536 
7537  >>> a, b = Ints('a b')
7538  >>> g = Goal()
7539  >>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
7540  >>> t = Tactic('split-clause')
7541  >>> r = t(g)
7542  >>> len(r)
7543  2
7544  >>> t = Then(Tactic('split-clause'), Tactic('split-clause'))
7545  >>> len(t(g))
7546  4
7547  >>> t = Then(Tactic('split-clause'), Tactic('split-clause'), Tactic('propagate-values'))
7548  >>> len(t(g))
7549  1
7550  """
7551  return int(Z3_apply_result_get_num_subgoals(self.ctx.ref(), self.result))
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.
def __repr__ (   self)

Definition at line 7569 of file z3py.py.

7570  def __repr__(self):
7571  return obj_to_string(self)
def 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 7577 of file z3py.py.

7578  def as_expr(self):
7579  """Return a Z3 expression consisting of all subgoals.
7580 
7581  >>> x = Int('x')
7582  >>> g = Goal()
7583  >>> g.add(x > 1)
7584  >>> g.add(Or(x == 2, x == 3))
7585  >>> r = Tactic('simplify')(g)
7586  >>> r
7587  [[Not(x <= 1), Or(x == 2, x == 3)]]
7588  >>> r.as_expr()
7589  And(Not(x <= 1), Or(x == 2, x == 3))
7590  >>> r = Tactic('split-clause')(g)
7591  >>> r
7592  [[x > 1, x == 2], [x > 1, x == 3]]
7593  >>> r.as_expr()
7594  Or(And(x > 1, x == 2), And(x > 1, x == 3))
7595  """
7596  sz = len(self)
7597  if sz == 0:
7598  return BoolVal(False, self.ctx)
7599  elif sz == 1:
7600  return self[0].as_expr()
7601  else:
7602  return Or([ self[i].as_expr() for i in range(len(self)) ])
def BoolVal
Definition: z3py.py:1540
expr range(expr const &lo, expr const &hi)
Definition: z3++.h:3358
def Or
Definition: z3py.py:1705
def sexpr (   self)
Return a textual representation of the s-expression representing the set of subgoals in `self`.

Definition at line 7572 of file z3py.py.

7573  def sexpr(self):
7574  """Return a textual representation of the s-expression representing the set of subgoals in `self`."""
7575  return Z3_apply_result_to_string(self.ctx.ref(), self.result)
7576 
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

Definition at line 7523 of file z3py.py.

Referenced by ApplyResult.__deepcopy__(), Tactic.__deepcopy__(), Probe.__deepcopy__(), Probe.__eq__(), Probe.__ge__(), ApplyResult.__getitem__(), Probe.__gt__(), Probe.__le__(), Probe.__lt__(), Probe.__ne__(), Tactic.apply(), ApplyResult.as_expr(), Tactic.param_descrs(), and Tactic.solver().

result

Definition at line 7522 of file z3py.py.

Referenced by ApplyResult.__deepcopy__(), ApplyResult.__del__(), ApplyResult.__getitem__(), ApplyResult.__len__(), and ApplyResult.sexpr().