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Translating Xd-C programs to MSVL programs. (English) Zbl 1436.68077
Summary: C language is one of the most popular languages for software systems. In order to verify safety, reliability and security properties of such systems written in C, a tool UMC4M for runtime verification at code level based on Modeling, Simulation and Verification Language (MSVL) and its compiler MC is employed. To do so, a C program $$P$$ has to be translated to an MSVL program and the negation of a desired property $$Q$$ is also translated to an MSVL program M’, then “M and M’” is compiled and executed armed with MC. Whether $$P$$ violates $$Q$$ is checked by evaluating whether there exists an acceptable execution of new MSVL program “M and M’”. Therefore, how to translate a C program to an MSVL program is a critical issue. However, in general, C is of complicated structures with statement. In this paper, we confine the syntax of C in a suitable subset called Xd-C without loss of expressiveness. Further, we present a translation algorithm from an Xd-C program to an MSVL program based on translation algorithms for expressions and statements. Moreover, the equivalences between expressions and statements involved in Xd-C and MSVL programs are inductively proved. Subsequently, the equivalence between the original Xd-C program and the translated MSVL program is also proved. In addition, the proposed approach has been implemented by a tool called C2M. A benchmark of experiments including 13 real-world Xd-C programs is conducted. The results show that C2M works effectively.
##### MSC:
 68N15 Theory of programming languages 68N20 Theory of compilers and interpreters 68Q60 Specification and verification (program logics, model checking, etc.)
##### Keywords:
C language; MSVL; translation; model checking; verification
##### Software:
BLAST; C2M; CBMC; CPAchecker; LTLAutomizer; MinGW; MSVL; NuSMV; RiTHM; SPIN; UMC4M
Full Text:
##### References:
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