Abstract

Microcode is a critical component in modern microprocessors, and substantial effort has been devoted in the past to verify its correctness. A prominent approach, based on symbolic execution, traditionally relies on the use of boolean SAT solvers as a backend engine. In this paper, we investigate the application of Satisfiability Modulo Theories (SMT) to the problem of microcode verification. We integrate MathSAT, an SMT solver for the theory of Bit Vectors, within the flow of microcode verification, and experimentally evaluate the effectiveness of some optimizations. The results demonstrate the potential of SMT technologies over pure boolean SAT.

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