To check a safety property of a program, it is sufficient to check the property on an abstraction that has more behaviors than the original program. If the safety property holds of the abstraction then it also holds of the original program.
CITATION STYLE
Ball, T. (2005). Formalizing Counterexample-Driven Refinement with Weakest Preconditions. In Engineering Theories of Software Intensive Systems (pp. 121–139). Springer-Verlag. https://doi.org/10.1007/1-4020-3532-2_5
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