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Paper detail

Crowbar: Behavioral Symbolic Execution for Deductive Verification of Active Objects

We present the Crowbar tool, a deductive verification system for the ABS language. ABS models distributed systems with the Active Object concurrency model. Crowbar implements behavioral symbolic execution: each method is symbolically executed, but specification and prior static analyses influence the shape of the symbolic execution tree. User interaction is realized through guided counterexamples, which present failed proof branches in terms of the input program. Crowbar has a clear interface to implement new specification languages and verification calculi in the Behavioral Program Logic and has been applied for the biggest verification case study of Active Objects.

preprint2022arXivOpen access
Eduard KamburjanMarco ScalettaNils Rollshausen
Logic in Computer Science
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Eduard KamburjanMarco ScalettaNils Rollshausen

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