github.com/aakash4dev/cometbft@v0.38.2/spec/light-client/supervisor/supervisor_001_draft.tla (about)

     1  ------------------------- MODULE supervisor_001_draft ------------------------
     2  (*
     3  This is the beginning of a spec that will eventually use verification and detector API
     4  *)
     5  
     6  EXTENDS Integers, FiniteSets
     7  
     8  VARIABLES
     9      state,
    10      output
    11  
    12  vars == <<state, output>>
    13  
    14  CONSTANT
    15      INITDATA
    16      
    17  Init ==
    18      /\ state = "Init"
    19      /\ output = "none"
    20      
    21  NextInit ==
    22      /\ state = "Init"
    23      /\ \/ state' = "EnterLoop"
    24         \/ state' = "FailedToInitialize"
    25      /\ UNCHANGED output
    26         
    27  NextVerifyToTarget ==
    28      /\ state = "EnterLoop"
    29      /\ \/ state' = "EnterLoop" \* replace primary
    30         \/ state' = "EnterDetect"
    31         \/ state' = "ExhaustedPeersPrimary"
    32      /\ UNCHANGED output
    33  
    34  NextAttackDetector ==
    35      /\ state = "EnterDetect"
    36      /\ \/ state' = "NoEvidence"
    37         \/ state' = "EvidenceFound"
    38         \/ state' = "ExhaustedPeersSecondaries"      
    39      /\ UNCHANGED output
    40  
    41  NextVerifyAndDetect ==
    42      \/ NextVerifyToTarget
    43      \/ NextAttackDetector
    44      
    45  NextOutput ==
    46      /\ state = "NoEvidence"
    47      /\ state' = "EnterLoop"
    48      /\ output' = "data" \* to generate a trace
    49      
    50  NextTerminated ==
    51      /\ \/ state = "FailedToInitialize"
    52         \/ state = "ExhaustedPeersPrimary"
    53         \/ state = "EvidenceFound"
    54         \/ state = "ExhaustedPeersSecondaries"
    55      /\ UNCHANGED vars
    56        
    57  Next ==
    58      \/ NextInit
    59      \/ NextVerifyAndDetect
    60      \/ NextOutput
    61      \/ NextTerminated
    62  
    63  InvEnoughPeers ==
    64      /\ state /= "ExhaustedPeersPrimary"
    65      /\ state /= "ExhaustedPeersSecondaries"    
    66     
    67  
    68  =============================================================================
    69  \* Modification History
    70  \* Last modified Sun Oct 18 11:48:45 CEST 2020 by widder
    71  \* Created Sun Oct 18 11:18:53 CEST 2020 by widder