fact: Definition update_pri_if_key (key: key_type) (newpri: priority_type) (hi : heap_item) := if Z.eq_dec key (heap_item_key hi) then (key, newpri, heap_item_payload hi) else hi.
imports: RelationClasses VST.floyd.proofauto CertiGraph.lib.List_ext CertiGraph.binheap.binary_heap_pro CertiGraph.binheap.binary_heap_malloc_spec CertiGraph.binheap.binary_heap_model CertiGraph.binheap.binary_heap_Zmodel