Z3
 
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Simplifier Class Reference

Public Member Functions

 __init__ (self, simplifier, ctx=None)
 
 __deepcopy__ (self, memo={})
 
 __del__ (self)
 
 using_params (self, *args, **keys)
 
 add (self, solver)
 
 help (self)
 
 param_descrs (self)
 

Data Fields

 ctx = _get_ctx(ctx)
 
 simplifier = None
 
list simplifier = [Simplifier(s, ctx) for s in simplifier]
 

Detailed Description

Simplifiers act as pre-processing utilities for solvers.
Build a custom simplifier and add it to a solver

Definition at line 8259 of file z3py.py.

Constructor & Destructor Documentation

◆ __init__()

__init__ ( self,
simplifier,
ctx = None )

Definition at line 8263 of file z3py.py.

8263 def __init__(self, simplifier, ctx=None):
8264 self.ctx = _get_ctx(ctx)
8265 self.simplifier = None
8266 if isinstance(simplifier, SimplifierObj):
8267 self.simplifier = simplifier
8268 elif isinstance(simplifier, list):
8269 simps = [Simplifier(s, ctx) for s in simplifier]
8270 self.simplifier = simps[0].simplifier
8271 for i in range(1, len(simps)):
8272 self.simplifier = Z3_simplifier_and_then(self.ctx.ref(), self.simplifier, simps[i].simplifier)
8273 Z3_simplifier_inc_ref(self.ctx.ref(), self.simplifier)
8274 return
8275 else:
8276 if z3_debug():
8277 _z3_assert(isinstance(simplifier, str), "simplifier name expected")
8278 try:
8279 self.simplifier = Z3_mk_simplifier(self.ctx.ref(), str(simplifier))
8280 except Z3Exception:
8281 raise Z3Exception("unknown simplifier '%s'" % simplifier)
8282 Z3_simplifier_inc_ref(self.ctx.ref(), self.simplifier)
8283
Z3_simplifier Z3_API Z3_simplifier_and_then(Z3_context c, Z3_simplifier t1, Z3_simplifier t2)
Return a simplifier that applies t1 to a given goal and t2 to every subgoal produced by t1.
void Z3_API Z3_simplifier_inc_ref(Z3_context c, Z3_simplifier t)
Increment the reference counter of the given simplifier.
Z3_simplifier Z3_API Z3_mk_simplifier(Z3_context c, Z3_string name)
Return a simplifier associated with the given name. The complete list of simplifiers may be obtained ...

◆ __del__()

__del__ ( self)

Definition at line 8287 of file z3py.py.

8287 def __del__(self):
8288 if self.simplifier is not None and self.ctx.ref() is not None and Z3_simplifier_dec_ref is not None:
8289 Z3_simplifier_dec_ref(self.ctx.ref(), self.simplifier)
8290
void Z3_API Z3_simplifier_dec_ref(Z3_context c, Z3_simplifier g)
Decrement the reference counter of the given simplifier.

Member Function Documentation

◆ __deepcopy__()

__deepcopy__ ( self,
memo = {} )

Definition at line 8284 of file z3py.py.

8284 def __deepcopy__(self, memo={}):
8285 return Simplifier(self.simplifier, self.ctx)
8286

◆ add()

add ( self,
solver )
Return a solver that applies the simplification pre-processing specified by the simplifier

Definition at line 8296 of file z3py.py.

8296 def add(self, solver):
8297 """Return a solver that applies the simplification pre-processing specified by the simplifier"""
8298 return Solver(Z3_solver_add_simplifier(self.ctx.ref(), solver.solver, self.simplifier), self.ctx)
8299

Referenced by Solver.__iadd__().

◆ help()

help ( self)
Display a string containing a description of the available options for the `self` simplifier.

Definition at line 8300 of file z3py.py.

8300 def help(self):
8301 """Display a string containing a description of the available options for the `self` simplifier."""
8302 print(Z3_simplifier_get_help(self.ctx.ref(), self.simplifier))
8303
Z3_string Z3_API Z3_simplifier_get_help(Z3_context c, Z3_simplifier t)
Return a string containing a description of parameters accepted by the given simplifier.

◆ param_descrs()

param_descrs ( self)
Return the parameter description set.

Definition at line 8304 of file z3py.py.

8304 def param_descrs(self):
8305 """Return the parameter description set."""
8306 return ParamDescrsRef(Z3_simplifier_get_param_descrs(self.ctx.ref(), self.simplifier), self.ctx)
8307
8308
Z3_param_descrs Z3_API Z3_simplifier_get_param_descrs(Z3_context c, Z3_simplifier t)
Return the parameter description set for the given simplifier object.

◆ using_params()

using_params ( self,
* args,
** keys )
Return a simplifier that uses the given configuration options

Definition at line 8291 of file z3py.py.

8291 def using_params(self, *args, **keys):
8292 """Return a simplifier that uses the given configuration options"""
8293 p = args2params(args, keys, self.ctx)
8294 return Simplifier(Z3_simplifier_using_params(self.ctx.ref(), self.simplifier, p.params), self.ctx)
8295
Z3_simplifier Z3_API Z3_simplifier_using_params(Z3_context c, Z3_simplifier t, Z3_params p)
Return a simplifier that applies t using the given set of parameters.

Field Documentation

◆ ctx

ctx = _get_ctx(ctx)

Definition at line 8264 of file z3py.py.

Referenced by ArithRef.__add__(), BitVecRef.__add__(), BitVecRef.__and__(), FuncDeclRef.__call__(), AstMap.__contains__(), AstRef.__copy__(), AstVector.__copy__(), FuncInterp.__copy__(), Goal.__copy__(), ModelRef.__copy__(), AstMap.__deepcopy__(), AstRef.__deepcopy__(), AstVector.__deepcopy__(), Datatype.__deepcopy__(), FuncEntry.__deepcopy__(), FuncInterp.__deepcopy__(), Goal.__deepcopy__(), ModelRef.__deepcopy__(), ParamDescrsRef.__deepcopy__(), ParamsRef.__deepcopy__(), Statistics.__deepcopy__(), AstMap.__del__(), AstRef.__del__(), AstVector.__del__(), Context.__del__(), FuncEntry.__del__(), FuncInterp.__del__(), Goal.__del__(), ModelRef.__del__(), ParamDescrsRef.__del__(), ParamsRef.__del__(), ScopedConstructor.__del__(), ScopedConstructorList.__del__(), Solver.__del__(), Statistics.__del__(), ArithRef.__div__(), BitVecRef.__div__(), ExprRef.__eq__(), ArithRef.__ge__(), BitVecRef.__ge__(), AstMap.__getitem__(), AstVector.__getitem__(), ModelRef.__getitem__(), Statistics.__getitem__(), ArithRef.__gt__(), BitVecRef.__gt__(), BitVecRef.__invert__(), ArithRef.__le__(), BitVecRef.__le__(), AstMap.__len__(), AstVector.__len__(), ModelRef.__len__(), Statistics.__len__(), BitVecRef.__lshift__(), ArithRef.__lt__(), BitVecRef.__lt__(), ArithRef.__mod__(), BitVecRef.__mod__(), ArithRef.__mul__(), BitVecRef.__mul__(), BoolRef.__mul__(), ExprRef.__ne__(), ArithRef.__neg__(), BitVecRef.__neg__(), BitVecRef.__or__(), ArithRef.__pow__(), ArithRef.__radd__(), BitVecRef.__radd__(), BitVecRef.__rand__(), ArithRef.__rdiv__(), BitVecRef.__rdiv__(), AstMap.__repr__(), ParamDescrsRef.__repr__(), ParamsRef.__repr__(), Statistics.__repr__(), BitVecRef.__rlshift__(), ArithRef.__rmod__(), BitVecRef.__rmod__(), ArithRef.__rmul__(), BitVecRef.__rmul__(), BitVecRef.__ror__(), ArithRef.__rpow__(), BitVecRef.__rrshift__(), BitVecRef.__rshift__(), ArithRef.__rsub__(), BitVecRef.__rsub__(), BitVecRef.__rxor__(), AstMap.__setitem__(), AstVector.__setitem__(), ArithRef.__sub__(), BitVecRef.__sub__(), BitVecRef.__xor__(), DatatypeSortRef.accessor(), ExprRef.arg(), FuncEntry.arg_value(), FuncInterp.arity(), Goal.as_expr(), Solver.assert_and_track(), Goal.assert_exprs(), Solver.assert_exprs(), QuantifierRef.body(), Solver.check(), Goal.convert_model(), AstRef.ctx_ref(), ExprRef.decl(), ModelRef.decls(), ArrayRef.default(), RatNumRef.denominator(), Goal.depth(), Goal.dimacs(), FuncDeclRef.domain(), ArraySortRef.domain_n(), FuncInterp.else_value(), FuncInterp.entry(), AstMap.erase(), ModelRef.eval(), Goal.get(), ParamDescrsRef.get_documentation(), ModelRef.get_interp(), Statistics.get_key_value(), ParamDescrsRef.get_kind(), ParamDescrsRef.get_name(), ModelRef.get_sort(), ModelRef.get_universe(), Goal.inconsistent(), AstMap.keys(), Statistics.keys(), Solver.model(), SortRef.name(), QuantifierRef.no_pattern(), FuncEntry.num_args(), FuncInterp.num_entries(), Solver.num_scopes(), ModelRef.num_sorts(), FuncDeclRef.params(), QuantifierRef.pattern(), AlgebraicNumRef.poly(), Solver.pop(), Goal.prec(), AstVector.push(), Solver.push(), QuantifierRef.qid(), ArraySortRef.range(), FuncDeclRef.range(), DatatypeSortRef.recognizer(), Context.ref(), AstMap.reset(), Solver.reset(), AstVector.resize(), ParamsRef.set(), Solver.set(), AstVector.sexpr(), Goal.sexpr(), ModelRef.sexpr(), Goal.size(), ParamDescrsRef.size(), QuantifierRef.skolem_id(), AstRef.translate(), AstVector.translate(), Goal.translate(), ModelRef.translate(), ParamsRef.validate(), FuncEntry.value(), QuantifierRef.var_name(), and QuantifierRef.var_sort().

◆ simplifier [1/2]

simplifier = None

Definition at line 8265 of file z3py.py.

◆ simplifier [2/2]

list simplifier = [Simplifier(s, ctx) for s in simplifier]

Definition at line 8267 of file z3py.py.