This commit is contained in:
Aleksander Kryukov 2025-05-30 00:32:25 +01:00 committed by Jochen Hoenicke
parent 3b5bd3d4fc
commit 17ebb6909d
2 changed files with 77 additions and 6 deletions

View File

@ -19,4 +19,5 @@
"loop_iter": "3",
"optimistic_hashing": true,
"hashing_length_bound": "512",
"solc": "solc8.28",
}

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@ -1,5 +1,9 @@
using ERC20A as Token;
methods {
function unwrapTimestamp(VaultBase.Timestamp) external returns (uint40) envfree;
function Token.totalSupply() external returns (uint256) envfree;
}
// rule sanity(env e, method f) {
@ -9,6 +13,30 @@ methods {
// }
ghost mathint sumOfBalances {
init_state axiom sumOfBalances == 0;
}
hook Sload uint256 balance Token._balances[KEY address addr] {
require sumOfBalances >= to_mathint(balance);
}
hook Sstore Token._balances[KEY address addr] uint256 newValue (uint256 oldValue) {
sumOfBalances = sumOfBalances - oldValue + newValue;
}
invariant totalSupplyIsSumOfBalances()
to_mathint(Token.totalSupply()) == sumOfBalances;
ghost mapping(VaultBase.Controller => mapping(VaultBase.FundId => uint40)) lockExpiryMirror {
init_state axiom
forall VaultBase.Controller controller.
@ -211,6 +239,52 @@ invariant outgoingLEAvailableEasySingle(VaultBase.Controller controller, VaultBa
invariant supporter()
forall VaultBase.Controller controller.
forall VaultBase.FundId fundId.
forall VaultBase.AccountId accountId.
lockMaximumMirror[controller][fundId] == 0 => outgoingMirror[controller][fundId][accountId] == 0;
ghost mapping(VaultBase.Controller => mapping(VaultBase.FundId => uint128)) valueMirror {
init_state axiom
forall VaultBase.Controller controller.
forall VaultBase.FundId fundId.
valueMirror[controller][fundId] == 0;
}
hook Sload uint128 defaultValue
_funds[KEY VaultBase.Controller Controller][KEY VaultBase.FundId FundId].value
{
require valueMirror[Controller][FundId] == defaultValue;
}
hook Sstore _funds[KEY VaultBase.Controller Controller][KEY VaultBase.FundId FundId].value
uint128 defaultValue
{
valueMirror[Controller][FundId] = defaultValue;
}
invariant fundCorrelation()
ghost mapping(VaultBase.Controller => mapping(VaultBase.FundId => mapping(VaultBase.AccountId => VaultBase.TokensPerSecond))) incomingMirror {
init_state axiom
(forall VaultBase.Controller controller.
@ -235,6 +309,8 @@ hook Sstore _accounts[KEY VaultBase.Controller Controller][KEY VaultBase.FundId
}
// (∀ controller Controller, fundId FundId:
// (∑ accountId AccountId: accounts[accountId].flow.incoming) =
// (∑ accountId AccountId: accounts[accountId].flow.outgoing)
@ -315,9 +391,3 @@ definition statusCVL(VaultBase.Controller controller, VaultBase.FundId fundId) r
// * (lockMaximumMirror[controller][fundId]
// - updatedMirror[controller][fundId][accountId]))
// == _funds[controller][fundId].value;