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Public Member Functions | Data Fields
ParamsRef Class Reference

Parameter Sets. More...

Public Member Functions

def __init__
 
def __del__
 
def set
 
def __repr__
 
def validate
 

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 4490 of file z3py.py.

Constructor & Destructor Documentation

def __init__ (   self,
  ctx = None 
)

Definition at line 4495 of file z3py.py.

4495 
4496  def __init__(self, ctx=None):
4497  self.ctx = _get_ctx(ctx)
4498  self.params = Z3_mk_params(self.ctx.ref())
4499  Z3_params_inc_ref(self.ctx.ref(), self.params)
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.
z3py.ParamsRef.__init__
def __init__
Definition: z3py.py:4495
def __del__ (   self)

Definition at line 4500 of file z3py.py.

4500 
4501  def __del__(self):
4502  Z3_params_dec_ref(self.ctx.ref(), self.params)
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.ParamsRef.__del__
def __del__
Definition: z3py.py:4500

Member Function Documentation

def __repr__ (   self)

Definition at line 4520 of file z3py.py.

4520 
4521  def __repr__(self):
4522  return Z3_params_to_string(self.ctx.ref(), self.params)
z3py.ParamsRef.__repr__
def __repr__
Definition: z3py.py:4520
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...
def set (   self,
  name,
  val 
) 
Set parameter name with value val.

Definition at line 4503 of file z3py.py.

4503 
4504  def set(self, name, val):
4505  """Set parameter name with value val."""
4506  if __debug__:
4507  _z3_assert(isinstance(name, str), "parameter name must be a string")
4508  name_sym = to_symbol(name, self.ctx)
4509  if isinstance(val, bool):
4510  Z3_params_set_bool(self.ctx.ref(), self.params, name_sym, val)
4511  elif isinstance(val, int):
4512  Z3_params_set_uint(self.ctx.ref(), self.params, name_sym, val)
4513  elif isinstance(val, float):
4514  Z3_params_set_double(self.ctx.ref(), self.params, name_sym, val)
4515  elif isinstance(val, str):
4516  Z3_params_set_symbol(self.ctx.ref(), self.params, name_sym, to_symbol(val, self.ctx))
4517  else:
4518  if __debug__:
4519  _z3_assert(False, "invalid parameter value")
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_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.
z3py.to_symbol
def to_symbol
Definition: z3py.py:94
Z3_params_set_bool
void Z3_API Z3_params_set_bool(Z3_context c, Z3_params p, Z3_symbol k, Z3_bool v)
Add a Boolean parameter k with value v to the parameter set p.
def validate (   self,
  ds 
)

Definition at line 4523 of file z3py.py.

4523 
4524  def validate(self, ds):
4525  _z3_assert(isinstance(ds, ParamDescrsRef), "parameter description set expected")
4526  Z3_params_validate(self.ctx.ref(), self.params, ds.descr)
z3py.ParamsRef.validate
def validate
Definition: z3py.py:4523
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.

Field Documentation

ctx

Definition at line 4496 of file z3py.py.

Referenced by Probe.__eq__(), Probe.__ge__(), ApplyResult.__getitem__(), Probe.__gt__(), Probe.__le__(), Probe.__lt__(), Probe.__ne__(), Fixedpoint.add_rule(), Optimize.add_soft(), Tactic.apply(), ApplyResult.as_expr(), Fixedpoint.assert_exprs(), ApplyResult.convert_model(), Fixedpoint.get_answer(), Fixedpoint.get_assertions(), Fixedpoint.get_cover_delta(), Fixedpoint.get_rules(), Optimize.model(), Fixedpoint.param_descrs(), Optimize.param_descrs(), Tactic.param_descrs(), Fixedpoint.parse_file(), Fixedpoint.parse_string(), Fixedpoint.query(), ParamsRef.set(), Fixedpoint.set(), Optimize.set(), Tactic.solver(), Fixedpoint.statistics(), Optimize.statistics(), Solver.to_smt2(), and Fixedpoint.update_rule().

params

Definition at line 4497 of file z3py.py.

Referenced by ParamsRef.__del__(), ParamsRef.__repr__(), ParamsRef.set(), and ParamsRef.validate().

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