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ci(tla/tlc): add DbspSpec to TLC test list (closes B1 partial — 1 of 4 deferred specs) #1397

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Merged
AceHack merged 2 commits into from
May 3, 2026
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ci(tla/tlc): add DbspSpec to TLC test list (closes B1 partial — 1 of 4 deferred specs) #1397

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ci(tla/tlc): add DbspSpec to TLC test list (closes B1 partial — 1 of …
AceHack May 3, 2026
aa0bc4d
fix(tlc-runner): correct DbspSpec coverage-scope claim — positive wei…
AceHack May 3, 2026
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38 changes: 38 additions & 0 deletions tests/Tests.FSharp/Formal/Tlc.Runner.Tests.fs
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Expand Up @@ -222,3 +222,41 @@ let ``TLC validates FeatureFlagsResolution`` () =
// FeatureFlags.isEnabled matches the documented resolution order
// on every environment.
assertSpecValid "FeatureFlagsResolution"


[<Fact>]
let ``TLC validates DbspSpec`` () =
// DBSP per-tick semantics — verifies the 9 algebra invariants
// (InvAssoc / InvCommute / InvIdentity / InvInverse /
// InvDoubleNeg / InvNegDistributes / InvSubIsAddNeg /
// InvDistinctIdempotent / InvHCorrectness) over the cfg's
// configured state space.
//
// **Coverage scope (verbatim from DbspSpec.cfg):**
// * Keys K = {"k1", "k2"} (2-key universe)
// * Weights W = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} — POSITIVE
// ONLY. Retraction (negative-weight) cases are NOT
// exercised by this model-check; they are covered separately
// by the FsCheck property-tests over Z-set algebra in
// `tests/Tests.FSharp/Algebra/ZSetTests.fs` and by the
// Lean proof of Prop 3.2 (`tools/lean4/Lean4/
// DbspChainRule.lean`) which is general over abelian-group
// weights.
// * Explores ~1M distinct initial states in ~11s wall on dev
// hardware; full state-space coverage of the positive-
// weight subset.
//
// Adding negative-weight coverage to this cfg would either
// require enlarging W (linear blow-up in state space) or
// refining the spec model — captured as a future-work refinement
// for whoever lands the chain_rule_poly (3-group) follow-on.
//
// Closes the first of the 4 deferred specs in B1 (#1383
// math-proofs honest assessment outstanding-work matrix). The
// other 3 (SpineAsyncProtocol, CircuitRegistration,
// SpineMergeInvariants) have known issues per a 2026-05-03
// verify-then-claim sweep — SpineAsyncProtocol +
// SpineMergeInvariants produce trace files (counterexamples);
// CircuitRegistration has a config bug (invariant Safety
// not defined in spec). Tracked as B-0179 + B-0180 + B-0181.
assertSpecValid "DbspSpec"
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