Remove uninitialized member from Base

claripy/algorithm/simplify.py

@@ -31,9 +31,6 @@ def simplify(expr: T) -> T:
         simplification_cache[expr.hash()] = expr
         return expr
 
-    # Copy some parameters (that should really go to the Annotation backend)
-    simplified._uninitialized = expr.uninitialized
-
     # dealing with annotations
     if expr.annotations:
         ast_args = tuple(a for a in expr.args if isinstance(a, Base))

claripy/ast/base.py

@@ -113,9 +113,6 @@ class Base:
     # Caching
     _cached_encoded_name: bytes | None
 
-    # Extra information
-    _uninitialized: bool
-
     __slots__ = [
         "op",
         "args",
@@ -129,7 +126,6 @@ class Base:
         "_relocatable_annotations",
         "_errored",
         "_cached_encoded_name",
-        "_uninitialized",
         "__weakref__",
     ]
 
@@ -144,7 +140,6 @@ def __new__(  # pylint:disable=redefined-builtin
         symbolic: bool | None = None,
         variables: frozenset[str] | None = None,
         errored: set[Backend] | None = None,
-        uninitialized: bool = False,
         annotations: tuple[Annotation, ...] = (),
         skip_child_annotations: bool = False,
         length: int | None = None,
@@ -218,7 +213,6 @@ def __new__(  # pylint:disable=redefined-builtin
                 symbolic=symbolic,
                 length=length,
                 errored=errored,
-                uninitialized=uninitialized,
                 annotations=annotations,
                 encoded_name=encoded_name,
                 depth=depth,
@@ -241,7 +235,6 @@ def make_like(
         annotations: tuple[Annotation, ...] | None = None,
         variables: frozenset[str] | None = None,
         symbolic: bool | None = None,
-        uninitialized: bool = False,
         skip_child_annotations: bool = False,
         length: int | None = None,
     ) -> Self:
@@ -254,7 +247,6 @@ def make_like(
             and annotations
             and variables is None
             and symbolic is None
-            and uninitialized is False
             and skip_child_annotations
             and length is not None
         ):
@@ -282,7 +274,6 @@ def make_like(
                 symbolic=self.symbolic,
                 annotations=annotations,
                 length=length,
-                uninitialized=self._uninitialized,
             )
 
             result._hash = h
@@ -297,8 +288,6 @@ def make_like(
             annotations = self.annotations if not args or not any(self is arg for arg in args) else ()
         if variables is None and op in all_operations:
             variables = self.variables
-        if uninitialized is None:
-            uninitialized = self._uninitialized
         if symbolic is None and op in all_operations:
             symbolic = self.symbolic
 
@@ -307,7 +296,6 @@ def make_like(
             args if simplified is None else simplified.args,
             annotations=annotations,
             variables=variables,
-            uninitialized=uninitialized,
             symbolic=symbolic,
             skip_child_annotations=skip_child_annotations,
             length=length,
@@ -322,7 +310,6 @@ def __a_init__(
         symbolic: bool | None = None,
         length: int | None = None,
         errored: set[Backend] | None = None,
-        uninitialized: bool = False,
         annotations: tuple[Annotation, ...] | None = None,
         encoded_name: bytes | None = None,
         depth: int | None = None,
@@ -353,8 +340,6 @@ def __a_init__(
 
         self._errored = errored if errored is not None else set()
 
-        self._uninitialized = uninitialized
-
         if len(self.args) == 0:
             raise ClaripyOperationError("AST with no arguments!")
 
@@ -963,16 +948,3 @@ def cardinality(self) -> int:
     @property
     def concrete(self) -> bool:
         return not self.symbolic
-
-    @property
-    def uninitialized(self) -> bool:
-        """
-        Whether this AST comes from an uninitialized dereference or not. It's only used in under-constrained symbolic
-        execution mode.
-
-        :returns:                   True/False/None (unspecified).
-        """
-
-        # TODO: It should definitely be moved to the proposed Annotation backend.
-
-        return self._uninitialized

claripy/ast/bv.py

@@ -291,9 +291,9 @@ def SI(
     )
 
 
-def TSI(bits, name=None, uninitialized=False, explicit_name=None):
+def TSI(bits, name=None, explicit_name=None):
     name = "unnamed" if name is None else name
-    return BVS(name, bits, uninitialized=uninitialized, explicit_name=explicit_name)
+    return BVS(name, bits, explicit_name=explicit_name)
 
 
 def ESI(bits, **kwargs):

claripy/ast/strings.py

@@ -47,13 +47,11 @@ def indexOf(self, pattern, start_idx):
         return StrIndexOf(self, pattern, start_idx)
 
 
-def StringS(name, uninitialized=False, explicit_name=False, **kwargs):
+def StringS(name, explicit_name=False, **kwargs):
     """
     Create a new symbolic string (analogous to z3.String())
 
     :param name:                 The name of the symbolic string (i. e. the name of the variable)
-    :param uninitialized:        Whether this value should be counted as an "uninitialized" value in the course of an
-                                 analysis.
     :param bool explicit_name:   If False, an identifier is appended to the name to ensure uniqueness.
 
     :returns:                    The String object representing the symbolic string
@@ -63,7 +61,6 @@ def StringS(name, uninitialized=False, explicit_name=False, **kwargs):
         "StringS",
         (n,),
         symbolic=True,
-        uninitialized=uninitialized,
         variables=frozenset((n,)),
         **kwargs,
     )

claripy/backends/backend_vsa/backend_vsa.py

@@ -465,8 +465,8 @@ def widen(self, ast):
         return ret
 
     @staticmethod
-    def CreateTopStridedInterval(bits, name=None, uninitialized=False):
-        return StridedInterval.top(bits, name, uninitialized=uninitialized)
+    def CreateTopStridedInterval(bits, name=None):
+        return StridedInterval.top(bits, name)
 
     def constraint_to_si(self, expr):
         return Balancer(self, expr).compat_ret