Abstract: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 … Show more
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