Z3
Public Member Functions | Data Fields
UserPropagateBase Class Reference

Public Member Functions

def __init__
 
def __del__ (self)
 
def ctx (self)
 
def ctx_ref (self)
 
def add_fixed (self, fixed)
 
def add_created (self, created)
 
def add_final (self, final)
 
def add_eq (self, eq)
 
def add_diseq (self, diseq)
 
def add_decide (self, decide)
 
def push (self)
 
def pop (self, num_scopes)
 
def fresh (self, new_ctx)
 
def add (self, e)
 
def next_split (self, t, idx, phase)
 
def propagate
 
def conflict
 

Data Fields

 solver
 
 fresh_ctx
 
 cb
 
 id
 
 fixed
 
 final
 
 eq
 
 diseq
 
 created
 
 decide
 

Detailed Description

Definition at line 11657 of file z3py.py.

Constructor & Destructor Documentation

def __init__ (   self,
  s,
  ctx = None 
)

Definition at line 11666 of file z3py.py.

11666  def __init__(self, s, ctx=None):
11667  assert s is None or ctx is None
11669  self.solver = s
11670  self._ctx = None
11671  self.fresh_ctx = None
11672  self.cb = None
11673  self.id = _prop_closures.insert(self)
11674  self.fixed = None
11675  self.final = None
11676  self.eq = None
11677  self.diseq = None
11678  self.created = None
11679  if ctx:
11680  self.fresh_ctx = ctx
11681  if s:
11683  s.solver,
11684  ctypes.c_void_p(self.id),
11685  _user_prop_push,
11686  _user_prop_pop,
11687  _user_prop_fresh)
11688 
def ensure_prop_closures()
Definition: z3py.py:11539
def ctx_ref(self)
Definition: z3py.py:11699
void Z3_API Z3_solver_propagate_init(Z3_context c, Z3_solver s, void *user_context, Z3_push_eh push_eh, Z3_pop_eh pop_eh, Z3_fresh_eh fresh_eh)
register a user-propagator with the solver.
def __del__ (   self)

Definition at line 11689 of file z3py.py.

11689  def __del__(self):
11690  if self._ctx:
11691  self._ctx.ctx = None
11692 
def __del__(self)
Definition: z3py.py:11689

Member Function Documentation

def add (   self,
  e 
)

Definition at line 11753 of file z3py.py.

11753  def add(self, e):
11754  assert not self._ctx
11755  if self.solver:
11756  Z3_solver_propagate_register(self.ctx_ref(), self.solver.solver, e.ast)
11757  else:
11758  Z3_solver_propagate_register_cb(self.ctx_ref(), ctypes.c_void_p(self.cb), e.ast)
11759 
void Z3_API Z3_solver_propagate_register_cb(Z3_context c, Z3_solver_callback cb, Z3_ast e)
register an expression to propagate on with the solver. Only expressions of type Bool and type Bit-Ve...
void Z3_API Z3_solver_propagate_register(Z3_context c, Z3_solver s, Z3_ast e)
register an expression to propagate on with the solver. Only expressions of type Bool and type Bit-Ve...
def ctx_ref(self)
Definition: z3py.py:11699
def add(self, e)
Definition: z3py.py:11753
def add_created (   self,
  created 
)

Definition at line 11709 of file z3py.py.

11709  def add_created(self, created):
11710  assert not self.created
11711  assert not self._ctx
11712  if self.solver:
11713  Z3_solver_propagate_created(self.ctx_ref(), self.solver.solver, _user_prop_created)
11714  self.created = created
11715 
void Z3_API Z3_solver_propagate_created(Z3_context c, Z3_solver s, Z3_created_eh created_eh)
register a callback when a new expression with a registered function is used by the solver The regist...
def ctx_ref(self)
Definition: z3py.py:11699
def add_created(self, created)
Definition: z3py.py:11709
def add_decide (   self,
  decide 
)

Definition at line 11737 of file z3py.py.

11737  def add_decide(self, decide):
11738  assert not self.decide
11739  assert not self._ctx
11740  if self.solver:
11741  Z3_solver_propagate_decide(self.ctx_ref(), self.solver.solver, _user_prop_decide)
11742  self.decide = decide
11743 
def add_decide(self, decide)
Definition: z3py.py:11737
void Z3_API Z3_solver_propagate_decide(Z3_context c, Z3_solver s, Z3_decide_eh decide_eh)
register a callback when the solver decides to split on a registered expression. The callback may cha...
def ctx_ref(self)
Definition: z3py.py:11699
def add_diseq (   self,
  diseq 
)

Definition at line 11730 of file z3py.py.

11730  def add_diseq(self, diseq):
11731  assert not self.diseq
11732  assert not self._ctx
11733  if self.solver:
11734  Z3_solver_propagate_diseq(self.ctx_ref(), self.solver.solver, _user_prop_diseq)
11735  self.diseq = diseq
11736 
def add_diseq(self, diseq)
Definition: z3py.py:11730
void Z3_API Z3_solver_propagate_diseq(Z3_context c, Z3_solver s, Z3_eq_eh eq_eh)
register a callback on expression dis-equalities.
def ctx_ref(self)
Definition: z3py.py:11699
def add_eq (   self,
  eq 
)

Definition at line 11723 of file z3py.py.

11723  def add_eq(self, eq):
11724  assert not self.eq
11725  assert not self._ctx
11726  if self.solver:
11727  Z3_solver_propagate_eq(self.ctx_ref(), self.solver.solver, _user_prop_eq)
11728  self.eq = eq
11729 
def add_eq(self, eq)
Definition: z3py.py:11723
def ctx_ref(self)
Definition: z3py.py:11699
void Z3_API Z3_solver_propagate_eq(Z3_context c, Z3_solver s, Z3_eq_eh eq_eh)
register a callback on expression equalities.
def add_final (   self,
  final 
)

Definition at line 11716 of file z3py.py.

11716  def add_final(self, final):
11717  assert not self.final
11718  assert not self._ctx
11719  if self.solver:
11720  Z3_solver_propagate_final(self.ctx_ref(), self.solver.solver, _user_prop_final)
11721  self.final = final
11722 
def add_final(self, final)
Definition: z3py.py:11716
void Z3_API Z3_solver_propagate_final(Z3_context c, Z3_solver s, Z3_final_eh final_eh)
register a callback on final check. This provides freedom to the propagator to delay actions or imple...
def ctx_ref(self)
Definition: z3py.py:11699
def add_fixed (   self,
  fixed 
)

Definition at line 11702 of file z3py.py.

11702  def add_fixed(self, fixed):
11703  assert not self.fixed
11704  assert not self._ctx
11705  if self.solver:
11706  Z3_solver_propagate_fixed(self.ctx_ref(), self.solver.solver, _user_prop_fixed)
11707  self.fixed = fixed
11708 
void Z3_API Z3_solver_propagate_fixed(Z3_context c, Z3_solver s, Z3_fixed_eh fixed_eh)
register a callback for when an expression is bound to a fixed value. The supported expression types ...
def add_fixed(self, fixed)
Definition: z3py.py:11702
def ctx_ref(self)
Definition: z3py.py:11699
def conflict (   self,
  deps = [],
  eqs = [] 
)

Definition at line 11779 of file z3py.py.

11779  def conflict(self, deps = [], eqs = []):
11780  self.propagate(BoolVal(False, self.ctx()), deps, eqs)
11781 
def BoolVal
Definition: z3py.py:1749
def ctx (   self)

Definition at line 11693 of file z3py.py.

Referenced by UserPropagateBase.conflict().

11693  def ctx(self):
11694  if self.fresh_ctx:
11695  return self.fresh_ctx
11696  else:
11697  return self.solver.ctx
11698 
def fresh (   self,
  new_ctx 
)

Definition at line 11750 of file z3py.py.

11750  def fresh(self, new_ctx):
11751  raise Z3Exception("fresh needs to be overwritten")
11752 
def fresh(self, new_ctx)
Definition: z3py.py:11750
def next_split (   self,
  t,
  idx,
  phase 
)

Definition at line 11765 of file z3py.py.

11765  def next_split(self, t, idx, phase):
11766  return Z3_solver_next_split(self.ctx_ref(), ctypes.c_void_p(self.cb), t.ast, idx, phase)
11767 
def next_split(self, t, idx, phase)
Definition: z3py.py:11765
def ctx_ref(self)
Definition: z3py.py:11699
bool Z3_API Z3_solver_next_split(Z3_context c, Z3_solver_callback cb, Z3_ast t, unsigned idx, Z3_lbool phase)
def pop (   self,
  num_scopes 
)

Definition at line 11747 of file z3py.py.

11747  def pop(self, num_scopes):
11748  raise Z3Exception("pop needs to be overwritten")
11749 
def pop(self, num_scopes)
Definition: z3py.py:11747
def propagate (   self,
  e,
  ids,
  eqs = [] 
)

Definition at line 11771 of file z3py.py.

Referenced by UserPropagateBase.conflict().

11771  def propagate(self, e, ids, eqs=[]):
11772  _ids, num_fixed = _to_ast_array(ids)
11773  num_eqs = len(eqs)
11774  _lhs, _num_lhs = _to_ast_array([x for x, y in eqs])
11775  _rhs, _num_rhs = _to_ast_array([y for x, y in eqs])
11776  return Z3_solver_propagate_consequence(e.ctx.ref(), ctypes.c_void_p(
11777  self.cb), num_fixed, _ids, num_eqs, _lhs, _rhs, e.ast)
11778 
bool Z3_API Z3_solver_propagate_consequence(Z3_context c, Z3_solver_callback cb, unsigned num_fixed, Z3_ast const *fixed, unsigned num_eqs, Z3_ast const *eq_lhs, Z3_ast const *eq_rhs, Z3_ast conseq)
propagate a consequence based on fixed values and equalities. A client may invoke it during the propa...
def push (   self)

Definition at line 11744 of file z3py.py.

11744  def push(self):
11745  raise Z3Exception("push needs to be overwritten")
11746 

Field Documentation

created

Definition at line 11678 of file z3py.py.

Referenced by UserPropagateBase.add_created().

decide

Definition at line 11742 of file z3py.py.

Referenced by UserPropagateBase.add_decide().

diseq

Definition at line 11677 of file z3py.py.

Referenced by UserPropagateBase.add_diseq().

eq

Definition at line 11676 of file z3py.py.

Referenced by AstRef.__eq__(), UserPropagateBase.add_eq(), SortRef.cast(), and BoolSortRef.cast().

final

Definition at line 11675 of file z3py.py.

Referenced by UserPropagateBase.add_final().

fixed

Definition at line 11674 of file z3py.py.

Referenced by UserPropagateBase.add_fixed().

fresh_ctx

Definition at line 11671 of file z3py.py.

Referenced by UserPropagateBase.ctx().

id

Definition at line 11673 of file z3py.py.