Nels E. Beckman, Aditya V. Nori, Sriram K. Rajamani, and Robert J. Simmons
We present an algorithm Dash to check if a program P satisfies a safety property. The unique feature of the algorithm is that it uses only test generation operations, and it refines and maintains a sound program abstraction as a consequence of failed test generation operations. Thus, each teration of the algorithm is inexpensive, and can be implemented without any global may-alias information. In particular, we introduce a new refinement operator WP_alpha that uses only the alias information obtained by executing a test to refine abstractions in a sound manner. We present a full exposition of the Dash algorithm, its theoretical properties, and its implementation.
In Proceedings of the International Symposium on Software Testing and Analysis (ISSTA)
Publisher Association for Computing Machinery, Inc.
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