CONSTANT
  k1 = k1
  c1 = c1
  c2 = c2

CONSTANT
  KEY <- Keys
  OPTIMISTIC_CLIENT <- OptimistiicClient
  PESSIMISTIC_CLIENT <- PessimisticClient
  CLIENT_READ_KEY <- ClientReadKeys
  CLIENT_WRITE_KEY <- ClientWriteKeys
  CLIENT_PRIMARY <- ClientPrimary

INIT
  Init

NEXT
  Next

INVARIANT
  TypeOK
  UniqueCommitOrAbort
  CommitConsistency
  AbortConsistency
  WriteConsistency
  UniqueLockOrWrite
  UniqueWrite
  OptimisticReadSnapshotIsolation
  PessimisticReadSnapshotIsolation
  MsgTsConsistency