571@2020@IJCAI

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#1 Optimal Planning Modulo Theories [PDF] [Copy] [Kimi] [REL]

Authors: Francesco Leofante ; Enrico Giunchiglia ; Erika Ábráham ; Armando Tacchella

We consider the problem of planning with arithmetic theories, and focus on generating optimal plans for numeric domains with constant and state-dependent action costs. Solving these problems efficiently requires a seamless integration between propositional and numeric reasoning. We propose a novel approach that leverages Optimization Modulo Theories (OMT) solvers to implement a domain-independent optimal theory-planner. We present a new encoding for optimal planning in this setting and we evaluate our approach using well-known, as well as new, numeric benchmarks.