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| − | = Application Instrumentation and Assistance in BPmc
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| − | The following API calls can be used inside Java b-thread to control the model checking process.
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| − | Throughout, the term nextVerificationState refers to the applictation's (composite) state at next synchronization point, when all b-threads are synchronized.
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| − | == markNextVerificationStateAsBad() ==
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| − | * Indicates safety property violation. MC stops and prints a counterexample.
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| − | == markNextVerificationStateAsHot() ==
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| − | * Used for liveness property checking. BPmc looks for reachable cycles that contains only hot states (and no cold states). By default, states are considered cold.
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| − | == pruneSearchNow()
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| − | * Forces backtracking immediately, possibly stopping other b-threads and possibly before the badness of the next state is determined.
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| − | == pruneAtNextVerificationState()
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| − | * forces backtracking after all b-threads reach the next state and after its badness is determined.
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| − | == labelNextVerificationState(…):
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| − | * Optionally provides a label for a b-thread state, to be used in constructing the BP-state (concatenating all bt-states - creating their Cartesian product).
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| − | * When BPmc reaches a BP-state that was already fully checked – it backtracks.
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| − | * If a b-thread does not label any of its states – it is considered to have one state – and it does not increase the size of the Cartesian product.
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