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feat: create definition, tweak rule, add other rule #220

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feat: create definition, tweak rule, add other rule #220

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22 changes: 19 additions & 3 deletions certora/specs/setup.spec
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Original file line number Diff line number Diff line change
@@ -217,7 +217,7 @@ invariant oneIdPerOperator(address operator1, address operator2)
// status: violated
invariant operatorIndexWithinRange(env e, address operator, uint8 quorumNumber, uint256 blocknumber, uint256 index)
getOperatorStatus(operator) == IRegistryCoordinator.OperatorStatus.REGISTERED &&
quorumInBitmap(assert_uint256(getCurrentQuorumBitmap(e, getOperatorId(operator))), quorumNumber) =>
operatorIsRegisteredForQuorum(e, operator, quorumNumber) =>
indexRegistry.currentOperatorIndex(e, quorumNumber, getOperatorId(operator)) < indexRegistry.totalOperatorsForQuorum(e, quorumNumber)
{
preserved deregisterOperator(bytes quorumNumbers) with (env e1) {
@@ -227,10 +227,26 @@ invariant operatorIndexWithinRange(env e, address operator, uint8 quorumNumber,
}

/// if operator is registered for quorum number then operator has stake weight >= minStakeWeight(quorumNumber)
// status: violated
invariant operatorHasNonZeroStakeWeight(env e, address operator, uint8 quorumNumber)
quorumInBitmap(assert_uint256(getCurrentQuorumBitmap(e, getOperatorId(operator))), quorumNumber) =>
stakeRegistry.weightOfOperatorForQuorum(e, quorumNumber, operator) >= stakeRegistry.minimumStakeForQuorum(e, quorumNumber);
stakeRegistry.weightOfOperatorForQuorum(e, quorumNumber, operator) > 0;

definition operatorIsRegisteredForQuorum(env e, address operator, uint8 quorumNumber) returns bool =
quorumInBitmap(assert_uint256(getCurrentQuorumBitmap(e, getOperatorId(operator))), quorumNumber);

rule registeringOperatorMeetsStakeRequirement(env e, address operator, uint8 quorumNumber) {
require(!operatorIsRegisteredForQuorum(e, operator, quorumNumber));
// perform arbitrary function call
calldataarg arg;
method f;
f(e, arg);

require(operatorIsRegisteredForQuorum(e, operator, quorumNumber));
assert(
stakeRegistry.weightOfOperatorForQuorum(e, quorumNumber, operator) >= stakeRegistry.minimumStakeForQuorum(e, quorumNumber),
"newly registered operator does not meet quorum weight requirement"
);
}

/// Operator cant go from registered to NEVER_REGISTERED. Can write some parametric rule
// status: verified