What happens to F1 tires?

Yesterday the Formula One took place in Bacellona with the GP of Spain, fifth race of the rich calendar. But since the first tests tires had problems. Problems that are being discussed since the very first Grand Prix.

Since 2011 all teams and cars have one label for tires, i.e. Pirelli, that has been requested by FIA to develop a new tire in order to make the races more spectacular with more overtaking, box stop and more fun i general.

The result is definitely not meeting the expectations, or at least not the most positive ones. As a matter of fact the 2013 tires are less durable, especially the soft tires that get hot and damage faster.

Because of that teams and pilots had to change their strategies and go back for the pit-stops in the first 10 rounds, that are crucial for the final position. In addition pilots have really to pay attention because if they're pushing too much, they risk to damage the tires faster, but if they try to preserve them they risk to loose important positions.

So the GP of Spain , as well as the GP of China, has been almost a disaster from this point of view. What will be next?