（五）向场内投掷杂物，不听制止的；
bytes. (And of course that lengthGuess is a correct guess for how
，更多细节参见safew官方版本下载
Ian YoungsCulture reporter
I learned that for 4-SAT, if clause to variable ratio is more than 10, the generated problems become difficult to solve, and the likelihood of formula to be SAT or UNSAT is close to 50%. So I generated 3 types of formulas: