Alternating Time Temporal Logic (ATL) is widely used for the verification of multi-agent systems. We consider Resource Agent Logic (  RAL     RAL       ), which extends ATL to allow the verification of properties of systems where agents act under resource constraints. The model checking problem for   RAL     RAL        with unbounded production and consumption of resources is known to be undecidable. We review existing (un)decidability results for fragments of   RAL     RAL       , tighten some existing undecidability results, and identify several aspects which affect decidability of model checking. One of these aspects is the availability of a ‘do nothing’, or  idle    action, which does not produce or consume resources. Analysis of undecidability results allows us to identify a significant new fragment of   RAL     RAL        for which model checking is decidable.
['Natasha Alechina', 'Nils Bulling', 'Brian Logan', 'Hoang Nga Nguyen']
The virtues of idleness: A decidable fragment of resource agent logic