Module type Absint__Scheduler.S
module CFG : Absint.ProcCfg.S
val schedule_succs : t -> CFG.Node.t -> t
schedule the successors of
node
val pop : t -> (CFG.Node.t * CFG.Node.id list * t) option
remove and return the node with the highest priority, the ids of its visited predecessors, and the new schedule