Z3
Public Member Functions | Data Fields
ApplyResult Class Reference
+ Inheritance diagram for ApplyResult:

Public Member Functions

def __init__ (self, result, ctx)
 
def __deepcopy__
 
def __del__ (self)
 
def __len__ (self)
 
def __getitem__ (self, idx)
 
def __repr__ (self)
 
def sexpr (self)
 
def as_expr (self)
 
- Public Member Functions inherited from Z3PPObject
def use_pp (self)
 

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 8082 of file z3py.py.

Constructor & Destructor Documentation

def __init__ (   self,
  result,
  ctx 
)

Definition at line 8087 of file z3py.py.

8087  def __init__(self, result, ctx):
8088  self.result = result
8089  self.ctx = ctx
8090  Z3_apply_result_inc_ref(self.ctx.ref(), self.result)
8091 
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 __init__(self, result, ctx)
Definition: z3py.py:8087
def __del__ (   self)

Definition at line 8095 of file z3py.py.

8095  def __del__(self):
8096  if self.ctx.ref() is not None and Z3_apply_result_dec_ref is not None:
8097  Z3_apply_result_dec_ref(self.ctx.ref(), self.result)
8098 
def __del__(self)
Definition: z3py.py:8095
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 8092 of file z3py.py.

8092  def __deepcopy__(self, memo={}):
8093  return ApplyResult(self.result, self.ctx)
8094 
def __deepcopy__
Definition: z3py.py:8092
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 8118 of file z3py.py.

8118  def __getitem__(self, idx):
8119  """Return one of the subgoals stored in ApplyResult object `self`.
8120 
8121  >>> a, b = Ints('a b')
8122  >>> g = Goal()
8123  >>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
8124  >>> t = Tactic('split-clause')
8125  >>> r = t(g)
8126  >>> r[0]
8127  [a == 0, Or(b == 0, b == 1), a > b]
8128  >>> r[1]
8129  [a == 1, Or(b == 0, b == 1), a > b]
8130  """
8131  if idx >= len(self):
8132  raise IndexError
8133  return Goal(goal=Z3_apply_result_get_subgoal(self.ctx.ref(), self.result, idx), ctx=self.ctx)
8134 
def __getitem__(self, idx)
Definition: z3py.py:8118
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 8099 of file z3py.py.

8099  def __len__(self):
8100  """Return the number of subgoals in `self`.
8101 
8102  >>> a, b = Ints('a b')
8103  >>> g = Goal()
8104  >>> g.add(Or(a == 0, a == 1), Or(b == 0, b == 1), a > b)
8105  >>> t = Tactic('split-clause')
8106  >>> r = t(g)
8107  >>> len(r)
8108  2
8109  >>> t = Then(Tactic('split-clause'), Tactic('split-clause'))
8110  >>> len(t(g))
8111  4
8112  >>> t = Then(Tactic('split-clause'), Tactic('split-clause'), Tactic('propagate-values'))
8113  >>> len(t(g))
8114  1
8115  """
8116  return int(Z3_apply_result_get_num_subgoals(self.ctx.ref(), self.result))
8117 
def __len__(self)
Definition: z3py.py:8099
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 8135 of file z3py.py.

8135  def __repr__(self):
8136  return obj_to_string(self)
8137 
def __repr__(self)
Definition: z3py.py:8135
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 8142 of file z3py.py.

8142  def as_expr(self):
8143  """Return a Z3 expression consisting of all subgoals.
8144 
8145  >>> x = Int('x')
8146  >>> g = Goal()
8147  >>> g.add(x > 1)
8148  >>> g.add(Or(x == 2, x == 3))
8149  >>> r = Tactic('simplify')(g)
8150  >>> r
8151  [[Not(x <= 1), Or(x == 2, x == 3)]]
8152  >>> r.as_expr()
8153  And(Not(x <= 1), Or(x == 2, x == 3))
8154  >>> r = Tactic('split-clause')(g)
8155  >>> r
8156  [[x > 1, x == 2], [x > 1, x == 3]]
8157  >>> r.as_expr()
8158  Or(And(x > 1, x == 2), And(x > 1, x == 3))
8159  """
8160  sz = len(self)
8161  if sz == 0:
8162  return BoolVal(False, self.ctx)
8163  elif sz == 1:
8164  return self[0].as_expr()
8165  else:
8166  return Or([self[i].as_expr() for i in range(len(self))])
8167 
def BoolVal
Definition: z3py.py:1705
expr range(expr const &lo, expr const &hi)
Definition: z3++.h:4085
def Or(args)
Definition: z3py.py:1878
def as_expr(self)
Definition: z3py.py:8142
def sexpr (   self)
Return a textual representation of the s-expression representing the set of subgoals in `self`.

Definition at line 8138 of file z3py.py.

8138  def sexpr(self):
8139  """Return a textual representation of the s-expression representing the set of subgoals in `self`."""
8140  return Z3_apply_result_to_string(self.ctx.ref(), self.result)
8141 
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.
def sexpr(self)
Definition: z3py.py:8138

Field Documentation

ctx
result