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added init_state axiom for sum of balances

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This commit is contained in:
Michael George
2022-06-02 14:37:40 -04:00
parent b90d195c6c
commit 27fa53bba9
1 changed files with 3 additions and 1 deletions
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4
certora/specs/ERC1155Supply.spec
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@ -32,7 +32,9 @@ filtered {
/******************************************************************************/
ghost mapping(uint256 => mathint) sumOfBalances;
ghost mapping(uint256 => mathint) sumOfBalances {
init_state axiom forall uint256 token . sumOfBalances[token] == 0;
}
hook Sstore _balances[KEY uint256 token][KEY address user] uint256 newValue (uint256 oldValue) STORAGE {
sumOfBalances[token] = sumOfBalances[token] + newValue - oldValue;