SPECIFICATION SafetySpec

CHECK_DEADLOCK FALSE

\* Repeated fencing with delayed outcomes, lease loss, and replacement.
CONSTANTS
    Jobs = {j1}
    Workers = {w1, w2}
    InitialWorkers = {w1}
    NoJob = NoJob
    NoWorker = NoWorker
    MaxAttempts = 3
    MaxProgress = 1
    LeaseLimit = 1
    LocalLimit = 1
    GlobalLimit = 1
    FaultsEnabled = TRUE
    FaultServices = {"Coordination"}

INVARIANTS
    TypeOK
    StateConsistency
    AtMostOneAuthoritativeAttempt
    FencingTokensUnique
    CommittedResultConsistent
    CancellationSafety
    PermitSafety
    QueueRecoverable
    AttemptIsolation
    ResumeValidity
    ZombieIsolation

PROPERTIES
    TerminalStateIsImmutable
    FencingTokensMonotonic
    CommitIsFencedCAS