A Quantum SMT Solver for Bit-Vector Theory

03/16/2023

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by   Shang-Wei Lin, et al.

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Given a formula F of satisfiability modulo theory (SMT), the classical SMT solver tries to (1) abstract F as a Boolean formula F_B, (2) find a Boolean solution to F_B, and (3) check whether the Boolean solution is consistent with the theory. Steps (2) and (3) may need to be performed back and forth until a consistent solution is found. In this work, we develop a quantum SMT solver for the bit-vector theory. With the characteristic of superposition in quantum system, our solver is able to consider all the inputs simultaneously and check their consistency between Boolean and the theory domains in one shot.