+ let add_to_bag bag (_,lit,vl,proof) =
+ let id = mk_id () in
+ let clause = (id, lit, vl, proof) in
+ let bag = Terms.M.add id clause bag in
+ bag, clause
+ ;;
+
+ let empty_bag = Terms.M.empty ;;
+
+ let mk_passive_clause cl =
+ (Order.compute_unit_clause_weight cl, cl)
+ ;;
+
+ let compare_passive_clauses (w1,(id1,_,_,_)) (w2,(id2,_,_,_)) =
+ if w1 = w2 then id1 - id2
+ else w1 - w2
+ ;;
+