SPECIFICATION SafetySpec CHECK_DEADLOCK FALSE \* Worker can reach coordination and target while durable authority is cut. CONSTANTS Jobs = {j1} Workers = {w1} InitialWorkers = {w1} NoJob = NoJob NoWorker = NoWorker MaxAttempts = 2 MaxProgress = 1 LeaseLimit = 1 LocalLimit = 1 GlobalLimit = 1 FaultsEnabled = TRUE FaultServices = {"Durable"} INVARIANTS TypeOK StateConsistency AtMostOneAuthoritativeAttempt FencingTokensUnique CommittedResultConsistent CancellationSafety PermitSafety QueueRecoverable AttemptIsolation ResumeValidity ZombieIsolation PROPERTIES TerminalStateIsImmutable FencingTokensMonotonic CommitIsFencedCAS