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specs(lockedGold): add pending timestamp precondition and reorder require in withdraw rule #11573

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specs(lockedGold): add pending timestamp precondition and reorder require in withdraw rule #11573

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8 changes: 6 additions & 2 deletions packages/protocol/specs/lockedGold.spec
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ methods {
getPendingWithdrawalsLength(address) returns uint256 envfree
getPendingWithdrawalsIndex(address,uint256) returns uint256 envfree
getunlockingPeriod() returns uint256 envfree
getPendingWithdrawal(address,uint256) returns (uint256,uint256) envfree
incrementNonvotingAccountBalance(address, uint256)
decrementNonvotingAccountBalance(address, uint256)
unlock(uint256)
Expand Down Expand Up @@ -111,10 +112,13 @@ rule noChangeByOther(address a, address b, method f) {
*/
rule withdraw(uint256 index) {
env e;
require (e.msg.sender != currentContract);
uint256 _balance = sinvoke ercBalanceOf(e.msg.sender);
uint256 val = sinvoke getPendingWithdrawalsIndex(e.msg.sender, index);
uint256 val;
uint256 ts;
(val, ts) = sinvoke getPendingWithdrawal(e.msg.sender, index);
require(e.block.timestamp >= ts);
sinvoke withdraw(e, index);
require (e.msg.sender != currentContract);
uint256 balance_ = sinvoke ercBalanceOf(e.msg.sender);
assert(
_balance + val == balance_,
Expand Down