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Public Member Functions | Data Fields
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
 
 simplifier
 

Detailed Description

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

Definition at line 8174 of file z3py.py.

Constructor & Destructor Documentation

◆ __init__()

__init__ (   self,
  simplifier,
  ctx = None 
)

Definition at line 8178 of file z3py.py.

8178 def __init__(self, simplifier, ctx=None):
8179 self.ctx = _get_ctx(ctx)
8180 self.simplifier = None
8181 if isinstance(simplifier, SimplifierObj):
8182 self.simplifier = simplifier
8183 elif isinstance(simplifier, list):
8184 simps = [Simplifier(s, ctx) for s in simplifier]
8185 self.simplifier = simps[0].simplifier
8186 for i in range(1, len(simps)):
8187 self.simplifier = Z3_simplifier_and_then(self.ctx.ref(), self.simplifier, simps[i].simplifier)
8188 Z3_simplifier_inc_ref(self.ctx.ref(), self.simplifier)
8189 return
8190 else:
8191 if z3_debug():
8192 _z3_assert(isinstance(simplifier, str), "simplifier name expected")
8193 try:
8194 self.simplifier = Z3_mk_simplifier(self.ctx.ref(), str(simplifier))
8195 except Z3Exception:
8196 raise Z3Exception("unknown simplifier '%s'" % simplifier)
8197 Z3_simplifier_inc_ref(self.ctx.ref(), self.simplifier)
8198
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 8202 of file z3py.py.

8202 def __del__(self):
8203 if self.simplifier is not None and self.ctx.ref() is not None and Z3_simplifier_dec_ref is not None:
8204 Z3_simplifier_dec_ref(self.ctx.ref(), self.simplifier)
8205
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 8199 of file z3py.py.

8199 def __deepcopy__(self, memo={}):
8200 return Simplifier(self.simplifier, self.ctx)
8201

◆ add()

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

Definition at line 8211 of file z3py.py.

8211 def add(self, solver):
8212 """Return a solver that applies the simplification pre-processing specified by the simplifier"""
8213 return Solver(Z3_solver_add_simplifier(self.ctx.ref(), solver.solver, self.simplifier), self.ctx)
8214

Referenced by Solver.__iadd__().

◆ help()

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

Definition at line 8215 of file z3py.py.

8215 def help(self):
8216 """Display a string containing a description of the available options for the `self` simplifier."""
8217 print(Z3_simplifier_get_help(self.ctx.ref(), self.simplifier))
8218
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 8219 of file z3py.py.

8219 def param_descrs(self):
8220 """Return the parameter description set."""
8221 return ParamDescrsRef(Z3_simplifier_get_param_descrs(self.ctx.ref(), self.simplifier), self.ctx)
8222
8223
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 8206 of file z3py.py.

8206 def using_params(self, *args, **keys):
8207 """Return a simplifier that uses the given configuration options"""
8208 p = args2params(args, keys, self.ctx)
8209 return Simplifier(Z3_simplifier_using_params(self.ctx.ref(), self.simplifier, p.params), self.ctx)
8210
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

Definition at line 8179 of file z3py.py.

Referenced by ArithRef.__add__(), BitVecRef.__add__(), BitVecRef.__and__(), FuncDeclRef.__call__(), AstMap.__contains__(), AstRef.__copy__(), Goal.__copy__(), AstVector.__copy__(), FuncInterp.__copy__(), ModelRef.__copy__(), AstRef.__deepcopy__(), Datatype.__deepcopy__(), ParamsRef.__deepcopy__(), ParamDescrsRef.__deepcopy__(), Goal.__deepcopy__(), AstVector.__deepcopy__(), AstMap.__deepcopy__(), FuncEntry.__deepcopy__(), FuncInterp.__deepcopy__(), ModelRef.__deepcopy__(), Statistics.__deepcopy__(), Context.__del__(), AstRef.__del__(), ScopedConstructor.__del__(), ScopedConstructorList.__del__(), ParamsRef.__del__(), ParamDescrsRef.__del__(), Goal.__del__(), AstVector.__del__(), AstMap.__del__(), FuncEntry.__del__(), FuncInterp.__del__(), ModelRef.__del__(), Statistics.__del__(), Solver.__del__(), ArithRef.__div__(), BitVecRef.__div__(), ExprRef.__eq__(), ArithRef.__ge__(), BitVecRef.__ge__(), AstVector.__getitem__(), ModelRef.__getitem__(), Statistics.__getitem__(), AstMap.__getitem__(), ArithRef.__gt__(), BitVecRef.__gt__(), BitVecRef.__invert__(), ArithRef.__le__(), BitVecRef.__le__(), AstVector.__len__(), AstMap.__len__(), ModelRef.__len__(), Statistics.__len__(), BitVecRef.__lshift__(), ArithRef.__lt__(), BitVecRef.__lt__(), ArithRef.__mod__(), BitVecRef.__mod__(), BoolRef.__mul__(), ArithRef.__mul__(), BitVecRef.__mul__(), ExprRef.__ne__(), ArithRef.__neg__(), BitVecRef.__neg__(), BitVecRef.__or__(), ArithRef.__pow__(), ArithRef.__radd__(), BitVecRef.__radd__(), BitVecRef.__rand__(), ArithRef.__rdiv__(), BitVecRef.__rdiv__(), ParamsRef.__repr__(), ParamDescrsRef.__repr__(), AstMap.__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__(), AstVector.__setitem__(), AstMap.__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(), Solver.push(), AstVector.push(), FuncDeclRef.range(), ArraySortRef.range(), DatatypeSortRef.recognizer(), Context.ref(), AstMap.reset(), Solver.reset(), AstVector.resize(), Solver.set(), ParamsRef.set(), Goal.sexpr(), AstVector.sexpr(), ModelRef.sexpr(), ParamDescrsRef.size(), Goal.size(), AstVector.translate(), AstRef.translate(), Goal.translate(), ModelRef.translate(), ParamsRef.validate(), FuncEntry.value(), QuantifierRef.var_name(), and QuantifierRef.var_sort().

◆ simplifier

simplifier

Definition at line 8180 of file z3py.py.