iterators for std::accumulate

the error seems to be with std:: accumulate or the iterators, or am I accessing an invalid pointer?

I've tried the above code, but the program stops unexpectedly

int m = 0;
    std::vector<int> v{4,-3,0,-5};
    for(std::vector<int>::iterator i = v.begin(); i!=v.end(); i++)
    {
        for(std::vector<int>::iterator j = v.begin(); j!=v.end(); j++)
        {
            m = max( m,  std::accumulate(i, j, 0)  );
        }
    }