Domain-Independent Instance Generation for Classical Planning

Learning-based planning systems learn domain-specific knowledge that helps them to solve unseen tasks from the same planning domain. For this purpose they require a diverse set of training instances. A recent proposal for formal specifications of planning domains allows us to exactly characterize which instances are legal for a domain. We automatically generate planning tasks from such formal specifications by means of a translation to answer set programming. We experimentally examine the scalability of the approach and the suitability for learning-based planning, following the setup of the learning track of the International Planning Competition.