fact: Definition main_spec := DECLARE _main WITH u : globals PRE [] main_pre prog tt u POST [ tint ] main_post prog u.
imports: CertiGraph.lib.Coqlib VST.floyd.proofauto CertiGraph.mark.env_mark_bin CertiGraph.graph.graph_model CertiGraph.graph.weak_mark_lemmas CertiGraph.graph.path_lemmas CertiGraph.graph.subgraph2 CertiGraph.graph.reachable_computable CertiGraph.msl_application.Graph CertiGraph.msl_application.GraphBin CertiGraph.msl_application.Graph_Mark CertiGraph.msl_application.DagBin_Mark CertiGraph.floyd_ext.share CertiGraph.mark.spatial_graph_bin_mark VST.msl.wand_frame VST.floyd.reassoc_seq VST.floyd.field_at_wand