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{
"specifications": [
{
"path": "specifications/Bakery-Boulangerie",
"title": "The Boulangerie Algorithm",
"description": "Spec of a variant of the Bakery Algorithm",
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"authors": [
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"Stephan Merz"
],
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]
},
{
"path": "specifications/CarTalkPuzzle",
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],
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],
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},
{
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},
{
"path": "specifications/CarTalkPuzzle/CarTalkPuzzle.toolbox/Model_3/MC.tla",
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"path": "specifications/CarTalkPuzzle/CarTalkPuzzle.toolbox/Model_3/MC.cfg",
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}
]
}
]
},
{
"path": "specifications/Chameneos",
"title": "Chameneos, a Concurrency Game",
"description": "A concurrency game requiring concurrent & symmetric cooperation",
"sources": [
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],
"authors": [
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"path": "specifications/Chameneos/Chameneos.tla",
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}
]
}
]
},
{
"path": "specifications/CheckpointCoordination",
"title": "Checkpoint Coordination",
"description": "An algorithm for controlling checkpoint leases in a Paxos ring",
"sources": [
"https://github.com/Azure/RingMaster",
"https://ahelwer.ca/post/2023-04-05-checkpoint-coordination/"
],
"authors": [
"Andrew Helwer"
],
"tags": [],
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{
"path": "specifications/CheckpointCoordination/CheckpointCoordination.tla",
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},
{
"path": "specifications/CheckpointCoordination/MCCheckpointCoordination.tla",
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{
"path": "specifications/CheckpointCoordination/MCCheckpointCoordination.cfg",
"runtime": "00:01:00",
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"symmetry"
],
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},
{
"path": "specifications/CheckpointCoordination/MCCheckpointCoordinationFailure.cfg",
"runtime": "00:00:10",
"size": "small",
"mode": "exhaustive search",
"features": [
"state constraint",
"symmetry"
],
"result": "safety failure"
}
]
}
]
},
{
"path": "specifications/CigaretteSmokers",
"title": "The Cigarette Smokers Problem",
"description": "A concurrency problem described in 1971 by Suhas Patil",
"sources": [
"https://github.com/mryndzionek/tlaplus_specs#cigarettesmokerstla"
],
"authors": [
"Mariusz Ryndzionek"
],
"tags": [],
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{
"path": "specifications/CigaretteSmokers/CigaretteSmokers.tla",
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"path": "specifications/CigaretteSmokers/CigaretteSmokers.cfg",
"runtime": "00:00:01",
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}
]
}
]
},
{
"path": "specifications/CoffeeCan",
"title": "The Coffee Can Bean Problem",
"description": "Math problem published by Dijkstra attributed to Carel Scholten",
"sources": [
"https://stackoverflow.com/a/66304920/2852699"
],
"authors": [
"Andrew Helwer"
],
"tags": [
"beginner"
],
"modules": [
{
"path": "specifications/CoffeeCan/CoffeeCan.tla",
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"features": [],
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{
"path": "specifications/CoffeeCan/CoffeeCan1000Beans.cfg",
"runtime": "00:00:15",
"size": "medium",
"mode": "exhaustive search",
"features": [
"liveness"
],
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},
{
"path": "specifications/CoffeeCan/CoffeeCan100Beans.cfg",
"runtime": "00:00:05",
"size": "small",
"mode": "exhaustive search",
"features": [
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],
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"totalStates": 20002,
"stateDepth": 1
},
{
"path": "specifications/CoffeeCan/CoffeeCan3000Beans.cfg",
"runtime": "00:02:30",
"size": "medium",
"mode": "exhaustive search",
"features": [
"liveness"
],
"result": "success"
}
]
}
]
},
{
"path": "specifications/DieHard",
"title": "The Die Hard Problem",
"description": "Obtain 4 gallons of water using only 3 and 5 gallon jugs",
"sources": [],
"authors": [
"Leslie Lamport"
],
"tags": [
"beginner"
],
"modules": [
{
"path": "specifications/DieHard/DieHard.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [],
"models": [
{
"path": "specifications/DieHard/DieHard.cfg",
"runtime": "00:00:01",
"size": "small",
"mode": "exhaustive search",
"features": [],
"result": "safety failure"
}
]
},
{
"path": "specifications/DieHard/DieHarder.tla",
"communityDependencies": [],
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"features": [],
"models": []
},
{
"path": "specifications/DieHard/MCDieHarder.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [],
"models": [
{
"path": "specifications/DieHard/MCDieHarder.cfg",
"runtime": "00:00:01",
"size": "small",
"mode": "exhaustive search",
"features": [],
"result": "safety failure"
}
]
}
]
},
{
"path": "specifications/DiningPhilosophers",
"title": "The Dining Philosophers Problem",
"description": "The Chandy-Misra solution to the Dining Philosophers concurrency problem",
"sources": [],
"authors": [
"Jeff Hemphill"
],
"tags": [
"beginner"
],
"modules": [
{
"path": "specifications/DiningPhilosophers/DiningPhilosophers.tla",
"communityDependencies": [],
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"features": [
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],
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{
"path": "specifications/DiningPhilosophers/DiningPhilosophers.cfg",
"runtime": "00:00:01",
"size": "small",
"mode": "exhaustive search",
"features": [
"liveness"
],
"result": "success",
"distinctStates": 67,
"totalStates": 336,
"stateDepth": 29
}
]
}
]
},
{
"path": "specifications/EinsteinRiddle",
"title": "Einstein's Riddle",
"description": "Five houses, five people, various facts, who lives in what house?",
"sources": [],
"authors": [
"Isaac DeFrain",
"Giuliano Losa"
],
"tags": [],
"modules": [
{
"path": "specifications/EinsteinRiddle/Einstein.tla",
"communityDependencies": [],
"tlaLanguageVersion": 2,
"features": [],
"models": [
{
"path": "specifications/EinsteinRiddle/Einstein.cfg",
"runtime": "unknown",
"size": "large",
"mode": "exhaustive search",
"features": [],
"result": "safety failure"
}
]
}
]
},
{
"path": "specifications/FiniteMonotonic",
"title": "Finitizing Monotonic Systems",
"description": "Illustration of technique for making ordinarily-infinite monotonic systems finite for the purposes of model-checking.",
"sources": [
"https://ahelwer.ca/post/2023-11-01-tla-finite-monotonic/"
],
"authors": [
"Andrew Helwer"
],
"tags": [
"intermediate"
],
"modules": [
{
"path": "specifications/FiniteMonotonic/CRDT.tla",
"communityDependencies": [],
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"features": [],
"models": []
},
{
"path": "specifications/FiniteMonotonic/Constrain_CRDT.tla",
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"features": [],
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{
"path": "specifications/FiniteMonotonic/Constrain_CRDT.cfg",
"runtime": "00:00:05",
"size": "small",
"mode": "exhaustive search",
"features": [
"liveness",
"state constraint"
],
"result": "success",
"distinctStates": 50000,
"totalStates": 575001,
"stateDepth": 17
}
]
},
{
"path": "specifications/FiniteMonotonic/Finitize_CRDT.tla",
"communityDependencies": [],
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"features": [],
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{
"path": "specifications/FiniteMonotonic/Finitize_CRDT.cfg",
"runtime": "00:00:05",
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"features": [
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],
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}
]
},
{
"path": "specifications/FiniteMonotonic/Finitize_ReplicatedLog.tla",
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"path": "specifications/FiniteMonotonic/Finitize_ReplicatedLog.cfg",
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"path": "specifications/FiniteMonotonic/ReplicatedLog.tla",
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}
]
},
{
"path": "specifications/GameOfLife",
"title": "Conway's Game of Life",
"description": "The famous cellular automata simulation",
"sources": [
"https://github.com/mryndzionek/tlaplus_specs#gameoflifetla"
],
"authors": [
"Mariusz Ryndzionek"
],
"tags": [],
"modules": [
{
"path": "specifications/GameOfLife/GameOfLife.tla",
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"features": [],
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"path": "specifications/GameOfLife/GameOfLife.cfg",
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},
{
"path": "specifications/Huang",
"title": "Huang's Algorithm",
"description": "An algorithm for detecting termination in a distributed system",
"sources": [],
"authors": [
"Markus Kuppe"
],
"tags": [],
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{
"path": "specifications/Huang/Huang.tla",
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