Incremental bounded software model checking

Henning Günther, Georg Weissenbacher
<span title="">2014</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/tgk44k34yneunpkdxa74z6yhqi" style="color: black;">Proceedings of the 2014 International SPIN Symposium on Model Checking of Software - SPIN 2014</a> </i> &nbsp;
Conventional Bounded Software Model Checking tools generate a symbolic representation of all feasible executions of a program up to a predetermined bound. An insufficiently large bound results in missed bugs, and a subsequent increase of the bound necessitates the complete reconstruction of the instance and a restart of the underlying solver. Conversely, exceedingly large bounds result in prohibitively large decision problems, causing the verifier to run out of resources before it can provide a
more &raquo; ... result. We present an incremental approach to Bounded Software Model Checking, which enables increasing the bound without incurring the overhead of a restart. Further, we provide an LLVM-based open-source implementation which supports a wide range of incremental SMT solvers. We compare our implementation to other traditional non-incremental software model checkers and show the advantages of performing incremental verification by analyzing the overhead incurred on a common suite of benchmarks.
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