DiVM: Model checking with LLVM and graph memory

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Authors	ROČKAI Petr ŠTILL Vladimír ČERNÁ Ivana BARNAT Jiří
Year of publication	2018
Type	Article in Periodical
Magazine / Source	Journal of Systems and Software
MU Faculty or unit	Faculty of Informatics
Citation
web	https://www.sciencedirect.com/science/article/pii/S0164121218300700
Doi	http://dx.doi.org/10.1016/j.jss.2018.04.026
Keywords	Model checking; C plus; Virtual machine; Verification
Description	In this paper, we introduce the concept of a virtual machine with graph-organised memory as a versatile backend for both explicit-state and abstraction-driven verification of software. Our virtual machine uses the LLVM IR as its instruction set, enriched with a small set of hypercalls. We show that the provided hypercalls are sufficient to implement a small operating system, which can then be linked with applications to provide a POSIX-compatible verification environment. Finally, we demonstrate the viability of the approach through a comparison with a more traditionally-designed LLVM model checker.
Related projects:	Correctness Analysis of C and C++ Programs with Threads