mirror of
https://github.com/logos-storage/logos-storage-contracts-eth.git
synced 2026-01-05 23:03:12 +00:00
282 lines
11 KiB
Ruby
282 lines
11 KiB
Ruby
using ERC20A as Token;
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methods {
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function Token.balanceOf(address) external returns (uint256) envfree;
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function Token.totalSupply() external returns (uint256) envfree;
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function publicPeriodEnd(Periods.Period) external returns (uint256) envfree;
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}
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/*--------------------------------------------
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| Ghosts and hooks |
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--------------------------------------------*/
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ghost mathint sumOfBalances {
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init_state axiom sumOfBalances == 0;
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}
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hook Sload uint256 balance Token._balances[KEY address addr] {
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require sumOfBalances >= to_mathint(balance);
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}
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hook Sstore Token._balances[KEY address addr] uint256 newValue (uint256 oldValue) {
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sumOfBalances = sumOfBalances - oldValue + newValue;
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}
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ghost mathint totalReceived;
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hook Sload uint256 defaultValue currentContract._marketplaceTotals.received {
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require totalReceived >= to_mathint(defaultValue);
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}
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hook Sstore currentContract._marketplaceTotals.received uint256 defaultValue (uint256 defaultValue_old) {
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totalReceived = totalReceived + defaultValue - defaultValue_old;
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}
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ghost mathint totalSent;
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hook Sload uint256 defaultValue currentContract._marketplaceTotals.sent {
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require totalSent >= to_mathint(defaultValue);
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}
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hook Sstore currentContract._marketplaceTotals.sent uint256 defaultValue (uint256 defaultValue_old) {
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totalSent = totalSent + defaultValue - defaultValue_old;
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}
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ghost uint256 lastBlockTimestampGhost;
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hook TIMESTAMP uint v {
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require lastBlockTimestampGhost <= v;
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lastBlockTimestampGhost = v;
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}
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ghost mapping(MarketplaceHarness.SlotId => mapping(Periods.Period => bool)) _missingMirror {
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init_state axiom forall MarketplaceHarness.SlotId a.
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forall Periods.Period b.
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_missingMirror[a][b] == false;
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}
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hook Sload bool defaultValue _missing[KEY MarketplaceHarness.SlotId slotId][KEY Periods.Period period] {
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require _missingMirror[slotId][period] == defaultValue;
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}
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hook Sstore _missing[KEY MarketplaceHarness.SlotId slotId][KEY Periods.Period period] bool defaultValue {
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_missingMirror[slotId][period] = defaultValue;
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}
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ghost mathint requestStateChangesCount {
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init_state axiom requestStateChangesCount == 0;
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}
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hook Sstore _requestContexts[KEY Marketplace.RequestId requestId].state Marketplace.RequestState newState (Marketplace.RequestState oldState) {
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if (oldState != newState) {
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requestStateChangesCount = requestStateChangesCount + 1;
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}
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}
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ghost mathint slotStateChangesCount {
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init_state axiom slotStateChangesCount == 0;
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}
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hook Sstore _slots[KEY Marketplace.SlotId slotId].state Marketplace.SlotState newState (Marketplace.SlotState oldState) {
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if (oldState != newState) {
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slotStateChangesCount = slotStateChangesCount + 1;
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}
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}
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/*--------------------------------------------
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| Helper functions |
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--------------------------------------------*/
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function canCancelRequest(method f) returns bool {
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return f.selector == sig:withdrawFunds(Marketplace.RequestId).selector;
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}
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function canStartRequest(method f) returns bool {
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return f.selector == sig:fillSlot(Marketplace.RequestId, uint256, Marketplace.Groth16Proof).selector ||
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f.selector == sig:freeSlot(Marketplace.SlotId).selector;
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}
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function canFinishRequest(method f) returns bool {
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return f.selector == sig:freeSlot(Marketplace.SlotId).selector;
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}
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function canFailRequest(method f) returns bool {
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return f.selector == sig:markProofAsMissing(Marketplace.SlotId, Periods.Period).selector ||
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f.selector == sig:freeSlot(Marketplace.SlotId).selector;
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}
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/*--------------------------------------------
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| Invariants |
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--------------------------------------------*/
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invariant totalSupplyIsSumOfBalances()
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to_mathint(Token.totalSupply()) == sumOfBalances;
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invariant requestStartedWhenSlotsFilled(env e, Marketplace.RequestId requestId, Marketplace.SlotId slotId)
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currentContract.requestState(e, requestId) == Marketplace.RequestState.Started => to_mathint(currentContract.getRequest(e, requestId).ask.slots) - to_mathint(currentContract.requestContext(e, requestId).slotsFilled) <= to_mathint(currentContract.getRequest(e, requestId).ask.maxSlotLoss);
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// { preserved {
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// require to_mathint(currentContract.requestContext(e, requestId).slotsFilled) <= to_mathint(currentContract.getRequest(e, requestId).ask.slots);
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// }
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// }
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// STATUS - verified
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// can set missing if period was passed
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// https://prover.certora.com/output/3106/026b36c118e44ad0824a51c50647c497/?anonymousKey=29879706f3d343555bb6122d071c9409d4e9876d
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invariant cantBeMissedIfInPeriod(MarketplaceHarness.SlotId slotId, Periods.Period period)
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lastBlockTimestampGhost <= publicPeriodEnd(period) => !_missingMirror[slotId][period];
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// STATUS - verified
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// cancelled request is always expired
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// https://prover.certora.com/output/6199/df88c16b9fb144ec88292df2346adb21?anonymousKey=2c76bd226b246bdd1b667d16c387519beaf94487
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invariant cancelledRequestAlwaysExpired(env e, Marketplace.RequestId requestId)
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currentContract.requestState(e, requestId) == Marketplace.RequestState.Cancelled =>
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currentContract.requestExpiry(e, requestId) < lastBlockTimestampGhost;
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// STATUS - verified
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// failed request is always ended
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// https://prover.certora.com/output/6199/902ffe4a83a9438e9860655446b46a74?anonymousKey=47b344024bbfe84a649bd1de44d7d243ce8dbc21
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invariant failedRequestAlwaysEnded(env e, Marketplace.RequestId requestId)
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currentContract.requestState(e, requestId) == Marketplace.RequestState.Failed =>
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currentContract.requestContext(e, requestId).endsAt < lastBlockTimestampGhost;
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/*--------------------------------------------
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| Properties |
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--------------------------------------------*/
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rule sanity(env e, method f) {
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calldataarg args;
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f(e, args);
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assert true;
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satisfy true;
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}
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rule totalReceivedCannotDecrease(env e, method f) {
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mathint total_before = totalReceived;
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calldataarg args;
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f(e, args);
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mathint total_after = totalReceived;
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assert total_after >= total_before;
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}
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rule totalSentCannotDecrease(env e, method f) {
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mathint total_before = totalSent;
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calldataarg args;
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f(e, args);
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mathint total_after = totalSent;
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assert total_after >= total_before;
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}
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rule slotFilledIFRequestIsFailed(env e, method f) {
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calldataarg args;
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Marketplace.SlotId slotId;
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require currentContract.requestState(e, currentContract.slots(slotId).requestId) != Marketplace.RequestState.Failed;
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f(e, args);
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require currentContract.requestState(e, currentContract.slots(slotId).requestId) == Marketplace.RequestState.Failed;
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assert currentContract.slotState(slotId) == Marketplace.SlotState.Failed;
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}
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rule allowedRequestStateChanges(env e, method f) {
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calldataarg args;
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Marketplace.RequestId requestId;
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//requireInvariant cancelledRequestAlwaysExpired(e, requestId);
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// requireInvariant failedRequestAlwaysEnded(e, requestId);
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//require currentContract.requestContext(e, requestId).expiresAt < currentContract.requestContext(e, requestId).endsAt;
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// require currentContract.slotState(e, slotId) == Marketplace.SlotState.Finished => currentContract.requestState(e, requestId) == Marketplace.RequestState.Finished;
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Marketplace.RequestState requestStateBefore = currentContract.requestState(e, requestId);
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f(e, args);
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Marketplace.RequestState requestStateAfter = currentContract.requestState(e, requestId);
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assert requestStateBefore != requestStateAfter && requestStateAfter == Marketplace.RequestState.Started => requestStateBefore == Marketplace.RequestState.New;
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assert requestStateBefore != requestStateAfter && requestStateAfter == Marketplace.RequestState.Finished => requestStateBefore == Marketplace.RequestState.Started;
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assert requestStateBefore != requestStateAfter && requestStateAfter == Marketplace.RequestState.Failed => requestStateBefore == Marketplace.RequestState.Started;
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assert requestStateBefore != requestStateAfter && requestStateAfter == Marketplace.RequestState.Cancelled => requestStateBefore == Marketplace.RequestState.New;
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}
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rule functionsCausingRequestStateChanges(env e, method f) {
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calldataarg args;
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Marketplace.RequestId requestId;
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Marketplace.RequestState requestStateBefore = currentContract.requestState(e, requestId);
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f(e, args);
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Marketplace.RequestState requestStateAfter = currentContract.requestState(e, requestId);
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// RequestState.New -> RequestState.Started
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assert requestStateBefore == Marketplace.RequestState.New && requestStateAfter == Marketplace.RequestState.Started => canStartRequest(f);
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// RequestState.New -> RequestState.Cancelled
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assert requestStateBefore == Marketplace.RequestState.New && requestStateAfter == Marketplace.RequestState.Cancelled => canCancelRequest(f);
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// RequestState.Started -> RequestState.Finished
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assert requestStateBefore == Marketplace.RequestState.Started && requestStateAfter == Marketplace.RequestState.Finished => canFinishRequest(f);
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// RequestState.Started -> RequestState.Failed
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assert requestStateBefore == Marketplace.RequestState.Started && requestStateAfter == Marketplace.RequestState.Failed => canFailRequest(f);
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// RequestState.Finished -> RequestState.Started
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assert requestStateBefore == Marketplace.RequestState.Finished && requestStateAfter == Marketplace.RequestState.Started => canStartRequest(f);
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}
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rule cancelledRequestsStayCancelled(env e, method f) {
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calldataarg args;
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Marketplace.RequestId requestId;
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Marketplace.RequestState requestStateBefore = currentContract.requestState(e, requestId);
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require requestStateBefore == Marketplace.RequestState.Cancelled;
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requireInvariant cancelledRequestAlwaysExpired(e, requestId);
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f(e, args);
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Marketplace.RequestState requestStateAfter = currentContract.requestState(e, requestId);
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assert requestStateAfter == requestStateBefore;
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}
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rule finishedRequestsStayFinished(env e, method f) {
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calldataarg args;
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Marketplace.RequestId requestId;
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Marketplace.RequestState requestStateBefore = currentContract.requestState(e, requestId);
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require requestStateBefore == Marketplace.RequestState.Finished;
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f(e, args);
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Marketplace.RequestState requestStateAfter = currentContract.requestState(e, requestId);
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assert requestStateBefore == requestStateAfter;
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}
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rule requestStateChangesOnlyOncePerFunctionCall(env e, method f) {
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calldataarg args;
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Marketplace.RequestId requestId;
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mathint requestStateChangesCountBefore = requestStateChangesCount;
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f(e, args);
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mathint requestStateChangesCountAfter = requestStateChangesCount;
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assert requestStateChangesCountAfter <= requestStateChangesCountBefore + 1;
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}
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rule slotStateChangesOnlyOncePerFunctionCall(env e, method f) {
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calldataarg args;
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Marketplace.SlotId slotId;
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mathint slotStateChangesCountBefore = slotStateChangesCount;
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f(e, args);
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mathint slotStateChangesCountAfter =slotStateChangesCount;
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assert slotStateChangesCountAfter <= slotStateChangesCountBefore + 1;
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}
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