ConSUS: A Scalable Approach to Conditioned Slicing

نویسندگان

  • Mohammed Daoudi
  • Lahcen Ouarbya
  • John Howroyd
  • Sebastian Danicic
  • Mark Harman
  • Chris Fox
  • Martin P. Ward
چکیده

Conditioned slicing can be applied to reverse engineering problems which involve the extraction of executable fragments of code in the context of some criteria of interest. This paper introduces ConSUS, a conditioner for the Wide Spectrum Language, WSL. The symbolic executor of ConSUS prunes the symbolic execution paths, and its predicate reasoning system uses the FermaT simplify transformation in place of a more conventional theorem prover. We show that this combination of pruning and simplificationas-reasoner leads to a more scalable approach to conditioning.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ConSUS: a light-weight program conditioner

Program conditioning consists of identifying and removing a set of statements which cannot be executed when a condition of interest holds at some point in a program. It has been applied to problems in maintenance, testing, re–use and re–engineering. Program conditioning relies upon both symbolic execution and reasoning about symbolic predicates. Automation of the process therefore requires some...

متن کامل

Abstract Program Slicing: From Theory towards an Implementation

Program Slicing: From Theory towards an Implementation Isabella Mastroeni and Ðurica Nikolić Dipartimento di Informatica, Università di Verona, Italy [email protected], [email protected] Abstract. In this paper we extend the formal framework proposed by Binkley et al. for representing and comparing forms of program slicing. This framework describes many well-known forms of slic...

متن کامل

ConSIT: A Conditioned Program Slicer

Conditioned slicing is a powerful generalisation of static and dynamic slicing which has applications to many problems in software maintenance and evolution, including re-use, reengineering and program comprehension. However, there has been relatively little work on the implementation of conditioned slicing. Algorithms for implementing conditioned slicing necessarily involve reasoning about the...

متن کامل

The Formal Transformation Approach to Source Code Analysis and Manipulation

In this paper we give a brief introduction to the foundations of WSL transformation theory and describe some applications to program slicing. We introduce some generalisations of traditional slicing, amorphous slicing and conditioned slicing which are possible in the framework of WSL transformations. One generalisation is “semantic slicing” which combines slicing and abstraction to a specificat...

متن کامل

Understanding Function Behaviors through Program Slicing

We present conditioned slicing as a general slicing framework for program comprehension. A conditioned slice consists of a subset of program statements which preserves the behavior of the original program with respect to a set of program executions. The set of initial states of the program that characterize these executions is speci ed in terms of a rst order logic formula on the input variable...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002