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ASE 2020
Mon 21 - Fri 25 September 2020 Melbourne, Australia
Thu 24 Sep 2020 01:10 - 01:30 at Kangaroo - Test Efficiency Chair(s): Darko Marinov

Path explosion and constraint solving are two challenges to symbolic execution’s scalability. Symbolic execution explores the program’s path space with a searching strategy and invokes the underlying constraint solver in a black-box manner to check the feasibility of a path. Inside the constraint solver, another searching procedure is employed to prove or disprove the feasibility. Hence, there exists the problem of double searchings in symbolic execution. In this paper, we propose to unify the double searching procedures to improve the scalability of symbolic execution. We propose \textit{Multiplex Symbolic Execution} (MuSE) that utilizes the intermediate assignments during the constraint solving procedure to generate new program inputs. MuSE maps the constraint solving procedure to the path exploration in symbolic execution and explores multiple paths in one time of solving. We have implemented MuSE on two symbolic execution tools (based on KLEE and JPF) and three commonly used constraint solving algorithms. The results of the extensive experiments on real-world benchmarks indicate that MuSE has orders of magnitude speedup to achieve the same coverage.

Thu 24 Sep
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01:10 - 02:10: Test EfficiencyResearch Papers / NIER track at Kangaroo
Chair(s): Darko MarinovUniversity of Illinois at Urbana-Champaign
01:10 - 01:30
Research paper
Research Papers
Yufeng ZhangCollege of Information Science and Engineering, Hunan University, Zhenbang ChenCollege of Computer, National University of Defense Technology, Changsha, PR China, Ziqi ShuaiNational University of Defense Technology, Tianqi ZhangNational University of Defense Technology, Kenli LiCollege of Information Science and Engineering, National Supercomputing Center in Changsha, Hunan University, Ji WangNational University of Defense Technology
01:30 - 01:50
Research Papers
Chijin ZhouTsinghua University, Mingzhe WangSchool of Software, Tsinghua University, Jie LiangSchool of Software, Tsinghua University, Zhe LiuNanjing University of Aeronautics and Astronautics, Yu Jiang
01:50 - 02:00
NIER track
Jinhao DongPeking University, Yiling LouPeking University, China, Dan HaoPeking University, China