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Add scripts to CI validation #178

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9d28462
Adding specifications
JarodDif Jul 26, 2025
b169fd1
More verbose Barriers README, better models for invariants
JarodDif Jul 27, 2025
e6732af
Verifying (?) the refinement on a finite model
JarodDif Jul 27, 2025
981d7e9
More verbose README for locks, better models, verifying (?) refinements
JarodDif Jul 27, 2025
3947385
Adding specifications to the top-level README
JarodDif Jul 27, 2025
f52239b
Adding proof for StutterConstantCondition
JarodDif Jul 27, 2025
872c7c0
Unify TLC models for locks_auxiliary_vars
JarodDif Jul 30, 2025
d49f1d6
Unify TLC models for barriers
JarodDif Jul 30, 2025
7675e26
Added barrier and Peterson's refinement models to CI validation
ahelwer Jul 31, 2025
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2 changes: 1 addition & 1 deletion .github/workflows/CI.yml
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Expand Up @@ -5,7 +5,7 @@ on:
- master
pull_request:
branches:
- master
- '*'
repository_dispatch:
types: [tlaplus-dispatch]
concurrency:
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2 changes: 2 additions & 0 deletions README.md
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Expand Up @@ -100,6 +100,8 @@ Here is a list of specs included in this repository, with links to the relevant
| [Condition-Based Consensus](specifications/cbc_max) | Thanh Hai Tran, Igor Konnov, Josef Widder | | | | | |
| [Buffered Random Access File](specifications/braf) | Calvin Loncaric | | | | ✔ | |
| [Disruptor](specifications/Disruptor) | Nicholas Schultz-Møller | | | | ✔ | |
| [Barrier Synchronization](specifications/barriers) | Jarod Differdange | | ✔ | ✔ | ✔ | |
| [Lock refinement using auxiliary variables](specifications/locks_auxiliary_vars) | Jarod Differdange | | ✔ | ✔ | ✔ | |


## Examples Elsewhere
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207 changes: 145 additions & 62 deletions manifest.json
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Expand Up @@ -588,14 +588,14 @@
"models": []
},
{
"path": "specifications/FiniteMonotonic/Functions.tla",
"path": "specifications/FiniteMonotonic/Folds.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [],
"models": []
},
{
"path": "specifications/FiniteMonotonic/Folds.tla",
"path": "specifications/FiniteMonotonic/Functions.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [],
Expand Down Expand Up @@ -1361,34 +1361,7 @@
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [],
"models": [
{
"path": "specifications/Moving_Cat_Puzzle/OddBoxes.cfg",
"runtime": "00:00:01",
"size": "small",
"mode": "exhaustive search",
"features": [
"liveness"
],
"result": "success",
"distinctStates": 30,
"totalStates": 78,
"stateDepth": 1
},
{
"path": "specifications/Moving_Cat_Puzzle/EvenBoxes.cfg",
"runtime": "00:00:01",
"size": "small",
"mode": "exhaustive search",
"features": [
"liveness"
],
"result": "success",
"distinctStates": 48,
"totalStates": 128,
"stateDepth": 1
}
]
"models": []
}
]
},
Expand Down Expand Up @@ -1960,32 +1933,6 @@
"distinctStates": 62,
"totalStates": 188,
"stateDepth": 11
},
{
"path": "specifications/Prisoners_Single_Switch/SoloPrisoner.cfg",
"runtime": "00:00:01",
"size": "small",
"mode": "exhaustive search",
"features": [
"liveness"
],
"result": "success",
"distinctStates": 2,
"totalStates": 3,
"stateDepth": 2
},
{
"path": "specifications/Prisoners_Single_Switch/SoloPrisonerLightUnknown.cfg",
"runtime": "00:00:01",
"size": "small",
"mode": "exhaustive search",
"features": [
"liveness"
],
"result": "success",
"distinctStates": 4,
"totalStates": 6,
"stateDepth": 2
}
]
}
Expand Down Expand Up @@ -3642,6 +3589,59 @@
}
]
},
{
"path": "specifications/barriers",
"title": "Barrier Synchronization Method",
"description": "A barrier makes all threads stop until all threads have reached the barrier",
"sources": [
"https://matheo.uliege.be/bitstream/2268.2/23374/5/tfe_s202356.pdf"
],
"authors": [
"Jarod Differdange"
],
"tags": [],
"modules": [
{
"path": "specifications/barriers/Barrier.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [],
"models": [
{
"path": "specifications/barriers/Barrier.cfg",
"runtime": "00:00:01",
"size": "small",
"mode": "exhaustive search",
"features": [
"liveness"
],
"result": "success"
}
]
},
{
"path": "specifications/barriers/Barriers.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [
"pluscal",
"proof"
],
"models": [
{
"path": "specifications/barriers/Barriers.cfg",
"runtime": "00:00:01",
"size": "small",
"mode": "exhaustive search",
"features": [
"liveness"
],
"result": "success"
}
]
}
]
},
{
"path": "specifications/bcastByz",
"title": "Asynchronous Reliable Broadcast",
Expand Down Expand Up @@ -4623,7 +4623,9 @@
"path": "specifications/ewd840/SyncTerminationDetection_proof.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": ["proof"],
"features": [
"proof"
],
"models": []
}
]
Expand Down Expand Up @@ -4687,8 +4689,8 @@
"mode": "exhaustive search",
"features": [
"ignore deadlock",
"state constraint",
"liveness"
"liveness",
"state constraint"
],
"result": "success"
},
Expand Down Expand Up @@ -4884,14 +4886,14 @@
"models": []
},
{
"path": "specifications/ewd998/Functions.tla",
"path": "specifications/ewd998/Folds.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [],
"models": []
},
{
"path": "specifications/ewd998/Folds.tla",
"path": "specifications/ewd998/Functions.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [],
Expand Down Expand Up @@ -5080,6 +5082,87 @@
}
]
},
{
"path": "specifications/locks_auxiliary_vars",
"title": "Peterson's Algorithm Refining a Lock with Auxiliary Variables",
"description": "A two-way refinement relation between Peterson's Algorithm and an abstract lock, using auxiliary variables as in *Prophecy Made Simple* by Lamport & Merz",
"sources": [
"https://matheo.uliege.be/bitstream/2268.2/23374/5/tfe_s202356.pdf"
],
"authors": [
"Jarod Differdange"
],
"tags": [],
"modules": [
{
"path": "specifications/locks_auxiliary_vars/Lock.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [
"pluscal",
"proof"
],
"models": [
{
"path": "specifications/locks_auxiliary_vars/Lock.cfg",
"runtime": "00:00:01",
"size": "small",
"mode": "exhaustive search",
"features": [],
"result": "success"
}
]
},
{
"path": "specifications/locks_auxiliary_vars/LockHS.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [
"proof"
],
"models": [
{
"path": "specifications/locks_auxiliary_vars/LockHS.cfg",
"runtime": "00:00:01",
"size": "small",
"mode": "exhaustive search",
"features": [
"liveness"
],
"result": "success"
}
]
},
{
"path": "specifications/locks_auxiliary_vars/Peterson.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [
"pluscal",
"proof"
],
"models": [
{
"path": "specifications/locks_auxiliary_vars/Peterson.cfg",
"runtime": "00:00:01",
"size": "small",
"mode": "exhaustive search",
"features": [
"liveness"
],
"result": "success"
}
]
},
{
"path": "specifications/locks_auxiliary_vars/Stuttering.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [],
"models": []
}
]
},
{
"path": "specifications/nbacc_ray97",
"title": "Asynchronous Non-Blocking Atomic Commit",
Expand Down Expand Up @@ -5434,4 +5517,4 @@
]
}
]
}
}
4 changes: 4 additions & 0 deletions specifications/barriers/Barrier.cfg
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@@ -0,0 +1,4 @@
CONSTANT N = 6
SPECIFICATION Spec
INVARIANT TypeOK
PROPERTY BarrierProperty
40 changes: 40 additions & 0 deletions specifications/barriers/Barrier.tla
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------------------------------- MODULE Barrier --------------------------------
EXTENDS Integers

CONSTANTS
N

VARIABLES pc

vars == << pc >>

ProcSet == (1..N)

Init ==
/\ pc = [p \in ProcSet |-> "b0"]

b0(self) ==
/\ pc[self] = "b0"
/\ pc' = [pc EXCEPT ![self] = "b1"]

b1 ==
/\ \A p \in ProcSet : pc[p] = "b1"
/\ pc' = [p \in ProcSet |-> "b0"]

Next ==
\/ \E p \in ProcSet : b0(p)
\/ b1

Spec == Init /\ [][Next]_vars

-------------------------------------------------------------------------------

TypeOK ==
/\ pc \in [ProcSet -> {"b0", "b1"}]

\* A process cannot leave the barrier if there are still other processes
\* that need to enter it
BarrierProperty ==
/\ [][\A p,q \in ProcSet : pc[p] = "b0" /\ pc[q] = "b1" => pc'[q] = "b1"]_vars

===============================================================================
4 changes: 4 additions & 0 deletions specifications/barriers/Barriers.cfg
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@@ -0,0 +1,4 @@
CONSTANT N = 6
SPECIFICATION Spec
INVARIANTS TypeOK LockInv Inv FlushInv
PROPERTY BSpec
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