improve in_output_list_dec proof
improve in_output_list_dec proof

palmskog/verdi,uwplse/verdi-raft,DistributedComponents/verdi-aggregation,guiquanz/verdi,lolisa/verdi,DistributedComponents/verdi-chord,DistributedComponents/verdi-chord,DistributedComponents/verdi-chord,DistributedComponents/verdi-chord,palmskog/verdi,guiquanz/verdi,uwplse/verdi,DistributedComponents/verdi-chord,uwplse/verdi-raft,uwplse/verdi-raft,lolisa/verdi,DistributedComponents/verdi-aggregation,uwplse/verdi-raft,uwplse/verdi-raft,uwplse/verdi,DistributedComponents/verdi-aggregation,DistributedComponents/verdi-aggregation,palmskog/verdi