Z3
Public Member Functions | Data Fields
ParamsRef Class Reference

Parameter Sets. More...

Public Member Functions

def __init__ (self, ctx=None, params=None)
 
def __deepcopy__ (self, memo={})
 
def __del__ (self)
 
def set (self, name, val)
 
def __repr__ (self)
 
def validate (self, ds)
 

Data Fields

 ctx
 
 params
 

Detailed Description

Parameter Sets.

Set of parameters used to configure Solvers, Tactics and Simplifiers in Z3.

Consider using the function `args2params` to create instances of this object.

Definition at line 5067 of file z3py.py.

Constructor & Destructor Documentation

◆ __init__()

def __init__ (   self,
  ctx = None,
  params = None 
)

Definition at line 5072 of file z3py.py.

5072  def __init__(self, ctx=None, params=None):
5073  self.ctx = _get_ctx(ctx)
5074  if params is None:
5075  self.params = Z3_mk_params(self.ctx.ref())
5076  else:
5077  self.params = params
5078  Z3_params_inc_ref(self.ctx.ref(), self.params)
5079 

◆ __del__()

def __del__ (   self)

Definition at line 5083 of file z3py.py.

5083  def __del__(self):
5084  if self.ctx.ref() is not None:
5085  Z3_params_dec_ref(self.ctx.ref(), self.params)
5086 

Member Function Documentation

◆ __deepcopy__()

def __deepcopy__ (   self,
  memo = {} 
)

Definition at line 5080 of file z3py.py.

5080  def __deepcopy__(self, memo={}):
5081  return ParamsRef(self.ctx, self.params)
5082 

◆ __repr__()

def __repr__ (   self)

Definition at line 5104 of file z3py.py.

5104  def __repr__(self):
5105  return Z3_params_to_string(self.ctx.ref(), self.params)
5106 

◆ set()

def set (   self,
  name,
  val 
)
Set parameter name with value val.

Definition at line 5087 of file z3py.py.

5087  def set(self, name, val):
5088  """Set parameter name with value val."""
5089  if z3_debug():
5090  _z3_assert(isinstance(name, str), "parameter name must be a string")
5091  name_sym = to_symbol(name, self.ctx)
5092  if isinstance(val, bool):
5093  Z3_params_set_bool(self.ctx.ref(), self.params, name_sym, val)
5094  elif _is_int(val):
5095  Z3_params_set_uint(self.ctx.ref(), self.params, name_sym, val)
5096  elif isinstance(val, float):
5097  Z3_params_set_double(self.ctx.ref(), self.params, name_sym, val)
5098  elif isinstance(val, str):
5099  Z3_params_set_symbol(self.ctx.ref(), self.params, name_sym, to_symbol(val, self.ctx))
5100  else:
5101  if z3_debug():
5102  _z3_assert(False, "invalid parameter value")
5103 

◆ validate()

def validate (   self,
  ds 
)

Definition at line 5107 of file z3py.py.

5107  def validate(self, ds):
5108  _z3_assert(isinstance(ds, ParamDescrsRef), "parameter description set expected")
5109  Z3_params_validate(self.ctx.ref(), self.params, ds.descr)
5110 

Field Documentation

◆ ctx

ctx

Definition at line 5073 of file z3py.py.

Referenced by Probe.__call__(), AstMap.__contains__(), Goal.__copy__(), AstVector.__copy__(), FuncInterp.__copy__(), ModelRef.__copy__(), Solver.__copy__(), ParamsRef.__deepcopy__(), ParamDescrsRef.__deepcopy__(), Goal.__deepcopy__(), AstVector.__deepcopy__(), AstMap.__deepcopy__(), FuncEntry.__deepcopy__(), FuncInterp.__deepcopy__(), ModelRef.__deepcopy__(), Statistics.__deepcopy__(), Solver.__deepcopy__(), Fixedpoint.__deepcopy__(), Optimize.__deepcopy__(), ApplyResult.__deepcopy__(), Tactic.__deepcopy__(), Probe.__deepcopy__(), ParamsRef.__del__(), ParamDescrsRef.__del__(), Goal.__del__(), AstVector.__del__(), AstMap.__del__(), FuncEntry.__del__(), FuncInterp.__del__(), ModelRef.__del__(), Statistics.__del__(), Solver.__del__(), Fixedpoint.__del__(), Optimize.__del__(), ApplyResult.__del__(), Tactic.__del__(), Probe.__del__(), Probe.__eq__(), Probe.__ge__(), AstVector.__getitem__(), AstMap.__getitem__(), ModelRef.__getitem__(), Statistics.__getitem__(), ApplyResult.__getitem__(), Probe.__gt__(), Probe.__le__(), AstVector.__len__(), AstMap.__len__(), ModelRef.__len__(), Statistics.__len__(), ApplyResult.__len__(), Probe.__lt__(), Probe.__ne__(), ParamsRef.__repr__(), ParamDescrsRef.__repr__(), AstMap.__repr__(), Statistics.__repr__(), AstVector.__setitem__(), AstMap.__setitem__(), Fixedpoint.add_cover(), Fixedpoint.add_rule(), Optimize.add_soft(), Tactic.apply(), FuncEntry.arg_value(), FuncInterp.arity(), Goal.as_expr(), ApplyResult.as_expr(), Solver.assert_and_track(), Optimize.assert_and_track(), Goal.assert_exprs(), Solver.assert_exprs(), Fixedpoint.assert_exprs(), Optimize.assert_exprs(), Solver.assertions(), Optimize.assertions(), Solver.check(), Optimize.check(), UserPropagateBase.conflict(), Solver.consequences(), Goal.convert_model(), UserPropagateBase.ctx_ref(), ModelRef.decls(), Goal.depth(), Goal.dimacs(), Solver.dimacs(), FuncInterp.else_value(), FuncInterp.entry(), AstMap.erase(), ModelRef.eval(), Solver.from_file(), Optimize.from_file(), Solver.from_string(), Optimize.from_string(), Goal.get(), Fixedpoint.get_answer(), Fixedpoint.get_assertions(), Fixedpoint.get_cover_delta(), ParamDescrsRef.get_documentation(), Fixedpoint.get_ground_sat_answer(), ModelRef.get_interp(), Statistics.get_key_value(), ParamDescrsRef.get_kind(), ParamDescrsRef.get_name(), Fixedpoint.get_num_levels(), Fixedpoint.get_rule_names_along_trace(), Fixedpoint.get_rules(), Fixedpoint.get_rules_along_trace(), ModelRef.get_sort(), ModelRef.get_universe(), Solver.help(), Fixedpoint.help(), Optimize.help(), Tactic.help(), Solver.import_model_converter(), Goal.inconsistent(), AstMap.keys(), Statistics.keys(), Optimize.maximize(), Optimize.minimize(), Solver.model(), Optimize.model(), Solver.non_units(), FuncEntry.num_args(), FuncInterp.num_entries(), Solver.num_scopes(), ModelRef.num_sorts(), Optimize.objectives(), Solver.param_descrs(), Fixedpoint.param_descrs(), Optimize.param_descrs(), Tactic.param_descrs(), Fixedpoint.parse_file(), Fixedpoint.parse_string(), Solver.pop(), Optimize.pop(), Goal.prec(), Solver.proof(), AstVector.push(), Solver.push(), Optimize.push(), Fixedpoint.query(), Fixedpoint.query_from_lvl(), Solver.reason_unknown(), Fixedpoint.reason_unknown(), Optimize.reason_unknown(), Fixedpoint.register_relation(), AstMap.reset(), Solver.reset(), AstVector.resize(), ParamsRef.set(), Solver.set(), Fixedpoint.set(), Optimize.set(), Fixedpoint.set_predicate_representation(), Goal.sexpr(), AstVector.sexpr(), ModelRef.sexpr(), Solver.sexpr(), Fixedpoint.sexpr(), Optimize.sexpr(), ApplyResult.sexpr(), ParamDescrsRef.size(), Goal.size(), Tactic.solver(), Solver.statistics(), Fixedpoint.statistics(), Optimize.statistics(), Solver.to_smt2(), Fixedpoint.to_string(), Solver.trail(), Solver.trail_levels(), Goal.translate(), AstVector.translate(), FuncInterp.translate(), ModelRef.translate(), Solver.translate(), Solver.units(), Solver.unsat_core(), Optimize.unsat_core(), Fixedpoint.update_rule(), ParamsRef.validate(), and FuncEntry.value().

◆ params

params
z3py.UserPropagateBase.__init__
def __init__(self, s, ctx=None)
Definition: z3py.py:10582
Z3_params_set_uint
void Z3_API Z3_params_set_uint(Z3_context c, Z3_params p, Z3_symbol k, unsigned v)
Add a unsigned parameter k with value v to the parameter set p.
Z3_params_set_double
void Z3_API Z3_params_set_double(Z3_context c, Z3_params p, Z3_symbol k, double v)
Add a double parameter k with value v to the parameter set p.
Z3_params_to_string
Z3_string Z3_API Z3_params_to_string(Z3_context c, Z3_params p)
Convert a parameter set into a string. This function is mainly used for printing the contents of a pa...
z3py.to_symbol
def to_symbol(s, ctx=None)
Definition: z3py.py:109
Z3_params_set_bool
void Z3_API Z3_params_set_bool(Z3_context c, Z3_params p, Z3_symbol k, bool v)
Add a Boolean parameter k with value v to the parameter set p.
z3py.UserPropagateBase.__del__
def __del__(self)
Definition: z3py.py:10607
Z3_params_dec_ref
void Z3_API Z3_params_dec_ref(Z3_context c, Z3_params p)
Decrement the reference counter of the given parameter set.
z3py.z3_debug
def z3_debug()
Definition: z3py.py:56
Z3_params_validate
void Z3_API Z3_params_validate(Z3_context c, Z3_params p, Z3_param_descrs d)
Validate the parameter set p against the parameter description set d.
Z3_mk_params
Z3_params Z3_API Z3_mk_params(Z3_context c)
Create a Z3 (empty) parameter set. Starting at Z3 4.0, parameter sets are used to configure many comp...
Z3_params_inc_ref
void Z3_API Z3_params_inc_ref(Z3_context c, Z3_params p)
Increment the reference counter of the given parameter set.
Z3_params_set_symbol
void Z3_API Z3_params_set_symbol(Z3_context c, Z3_params p, Z3_symbol k, Z3_symbol v)
Add a symbol parameter k with value v to the parameter set p.