solidity/test/libsolidity/smtCheckerTests/operators/mod_signed.sol

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pragma experimental SMTChecker;
contract C {
function f(int x, int y) public pure {
require(y != 0);
require(x == 42);
int z1 = x % y;
int z2 = -x % y;
assert(z1 == -z2);
assert((x >= 0 && z1 >=0) || (x <= 0 && z1 <= 0));
}
}
// ----