Why can Benfica play in the Champions League?

According to the competition system, Portuguese super points 1 2 can qualify for the Champions League, while the third place can participate in the third round of Champions League qualifiers, and the fourth and fourth places in the league can participate in the third round of UEFA qualifiers next season. The fifth place in the league can participate in the second round of UEFA qualifiers next season. The winner of the Portuguese Cup can advance to the Europa League group stage next season.