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Added invariant balanceOfZeroAddressIsZero (partially passing)

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Thomas Adams
2022-05-31 18:34:22 -07:00
parent 8e283704c3
commit 15e847c835
1 changed files with 5 additions and 1 deletions
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6
certora/specs/ERC1155Supply.spec
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@ -4,7 +4,7 @@ methods {
balanceOf(address, uint256) returns uint256 envfree balanceOf(address, uint256) returns uint256 envfree
exists_wrapper(uint256) returns bool envfree exists_wrapper(uint256) returns bool envfree
} }
/// given two different token ids, if totalSupply for one changes, then /// given two different token ids, if totalSupply for one changes, then
/// totalSupply for other should not /// totalSupply for other should not
rule token_totalSupply_independence(method f) rule token_totalSupply_independence(method f)
@ -60,6 +60,10 @@ rule total_supply_is_sum_of_balances_as_rule {
/******************************************************************************/ /******************************************************************************/
/// The balance of a token for the zero address must be zero.
invariant balanceOfZeroAddressIsZero(uint256 token)
balanceOf(0, token) == 0
// if a user has a token, then the token should exist // if a user has a token, then the token should exist
/* /*