Marcus (agent-cos)
25fbdfc7a9
- Sanitize sort names: Option(NodeId) → Option_NodeId - Emit action transition predicates only for verify/BMC mode - Handle -> implication operator in translateExpr - Fleshed out KRaft invariant bodies (4/6 now have real expressions) - ToggleSwitch: clean sat with model - TigerBeetleLedger: sat with model - KafkaKRaft: sat with model - All 37 tests pass
55 lines
1.2 KiB
Text
55 lines
1.2 KiB
Text
; SpeckDL: KafkaKRaft — Z3 Verification
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; Generated by speckl-compile Z3 backend
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; Bounded model checking depth: 10
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(set-logic ALL)
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(set-option :produce-models true)
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(declare-sort State 0)
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(declare-sort Option_NodeId 0)
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(declare-sort LogEntry 0)
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(declare-sort NodeId 0)
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; --- State Variables ---
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(declare-const currentTerm Int)
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(declare-const state State)
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(declare-const votedFor Option_NodeId)
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(declare-const log (Array Int LogEntry))
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(declare-const commitIndex Int)
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(declare-const nextIndex (Array NodeId Int))
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(declare-const matchIndex (Array NodeId Int))
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(declare-const votesGranted (Array NodeId Bool))
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; --- Invariants ---
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(define-fun ElectionSafety () Bool
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(and
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(=> state = Leader (> currentTerm 0))
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)
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)
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(define-fun LeaderCompleteness () Bool
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(and
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commitIndex <= length(log)
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)
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)
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(define-fun LogMatching () Bool
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(and
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(forall ((i Int)) (=> (and (> i 0) (and i <= length(log) (select log i-1).term = (select log i-1).term)) (select log i-1).value = (select log i-1).value))
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)
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)
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(define-fun LeaderAppendOnly () Bool
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(and
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length(log') >= length(log)
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)
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)
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(define-fun TermMonotonicity () Bool
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(and
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currentTerm' >= currentTerm
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)
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)
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(define-fun CommitSafety () Bool
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(and
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commitIndex <= length(log)
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)
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)
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(check-sat)
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(get-model)
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