diff --git a/core/blockchain.go b/core/blockchain.go
index 04ed4ac824..f58df07e44 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -1852,7 +1852,6 @@ func (bc *BlockChain) insertChain(chain types.Blocks, setHead bool) (int, error)
 		} else {
 			status, err = bc.writeBlockAndSetHead(block, receipts, logs, statedb, false)
 		}
-
 		statedb.GetWitness().SetBlock(block)
 		log.Info(fmt.Sprintf("block %d summary:\n%s", block.NumberU64(), statedb.GetWitness().Summary()))
 		//state.DumpBlockWithWitnessToFile(statedb.GetWitness(), block)
diff --git a/core/state/state_witness.go b/core/state/state_witness.go
index 5269c44a73..6705a80b52 100644
--- a/core/state/state_witness.go
+++ b/core/state/state_witness.go
@@ -161,13 +161,9 @@ func (w Witness) Copy() Witness {
 	panic("not implemented")
 }
 
-func (w *Witness) Dump() {
-	for owner, al := range w.lists {
-		fmt.Printf("owner %x:\n", owner)
-		for path, node := range al {
-			fmt.Printf("%x: %x\n", []byte(path), node)
-		}
-	}
+func (w *Witness) LogSizeWithBlock(b *types.Block) {
+	enc := w.EncodeRLP()
+	fmt.Printf("block %d witness+block size: %d\n", b.Number(), len(enc))
 }
 
 func (w *Witness) Summary() string {