solidity/test/libsolidity/smtCheckerTests/types/mapping_aliasing_2.sol

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2019-02-21 12:01:58 +00:00
pragma experimental SMTChecker;
contract C
{
mapping (uint => uint) a;
mapping (uint => mapping (uint => uint)) maps;
mapping (uint => mapping (uint => uint8)) maps8;
function f(mapping (uint => uint) storage map1, mapping (uint => uint) storage map2) internal {
require(map1[0] == 2);
require(a[0] == 42);
require(maps[0][0] == 42);
require(maps8[0][0] == 42);
map2[0] = 1;
// Fails because map2 == map1 is possible.
assert(map1[0] == 2);
// Fails because map2 == a is possible.
assert(a[0] == 42);
// Fails because map2 == maps[0] is possible.
assert(maps[0][0] == 42);
// Should not fail since knowledge is erased only for mapping (uint => uint).
assert(maps8[0][0] == 42);
assert(map2[0] == 1);
}
}
// ----
// Warning: (437-457): Assertion violation happens here
// Warning: (503-521): Assertion violation happens here
// Warning: (573-597): Assertion violation happens here