Test whether an AST is bounded by any existing constraint in the related solver.

        :param ast: an claripy.AST object
        :return: True if there is at least one related constraint, False otherwise

def is_bounded(self, ast):
        """
        Test whether an AST is bounded by any existing constraint in the related solver.

        :param ast: an claripy.AST object
        :return: True if there is at least one related constraint, False otherwise
        """

        return len(ast.variables.intersection(self.state.solver._solver.variables)) != 0