diff --git a/mpt-witness-generator/oracle/preimage.go b/mpt-witness-generator/oracle/preimage.go
index a3461d4895..65733a340e 100644
--- a/mpt-witness-generator/oracle/preimage.go
+++ b/mpt-witness-generator/oracle/preimage.go
@@ -13,7 +13,6 @@ var preimages = make(map[common.Hash][]byte)
 func Preimage(hash common.Hash) ([]byte, error) {
 	val, ok := preimages[hash]
 	if !ok {
-		fmt.Println("can't find preimage", hash)
 		return nil, errors.New("can't find preimage")
 	}
 	comphash := crypto.Keccak256Hash(val)
diff --git a/mpt-witness-generator/state/statedb.go b/mpt-witness-generator/state/statedb.go
index c0926fd80b..6502bba1c4 100644
--- a/mpt-witness-generator/state/statedb.go
+++ b/mpt-witness-generator/state/statedb.go
@@ -437,7 +437,7 @@ func (s *StateDB) SetStateObjectIfExists(addr common.Address) {
 		ap := oracle.PrefetchAccount(s.Db.BlockNumber, addr, nil)
 		if len(ap) > 0 {
 			ret, _ := hex.DecodeString(ap[len(ap)-1][2:])
-			s.setStateObjectFromEncoding(addr, ret)
+			s.SetStateObjectFromEncoding(addr, ret)
 		}
 	}
 }
@@ -594,7 +594,7 @@ func (s *StateDB) getDeletedStateObject(addr common.Address) *stateObject {
 
 // Added for MPT generator. This loads account into stateObjects - if an account is not
 // in stateObjects, a new account is created in GetOrNewStateObject.
-func (s *StateDB) setStateObjectFromEncoding(addr common.Address, enc []byte) error {
+func (s *StateDB) SetStateObjectFromEncoding(addr common.Address, enc []byte) error {
 	if len(enc) == 0 {
 		return errors.New("encoding of account is of length 0")
 	}
@@ -605,7 +605,7 @@ func (s *StateDB) setStateObjectFromEncoding(addr common.Address, enc []byte) er
 	if err := rlp.DecodeBytes(accData, data); err != nil {
 		// If it's not account RLP, nothing is set (in stateObjects) - this is to prevent
 		// the need of checking whether enc is account RLP or something else (like branch RLP).
-		fmt.Println("failed to decode account")
+		// fmt.Println("failed to decode account")
 		return nil
 	}
 
diff --git a/mpt-witness-generator/trie/stacktrie.go b/mpt-witness-generator/trie/stacktrie.go
index 9f3a63a23f..6a11cd2a99 100644
--- a/mpt-witness-generator/trie/stacktrie.go
+++ b/mpt-witness-generator/trie/stacktrie.go
@@ -503,7 +503,6 @@ func (st *StackTrie) hash(doUpdate bool) {
 	if st.db != nil {
 		// TODO! Is it safe to Put the slice here?
 		// Do all db implementations copy the value provided?
-		fmt.Println("into db:", st.val)
 		st.db.Put(st.val, h.tmp)
 	}
 }
diff --git a/mpt-witness-generator/trie/trie.go b/mpt-witness-generator/trie/trie.go
index 433da4a1b6..e309d6c74f 100644
--- a/mpt-witness-generator/trie/trie.go
+++ b/mpt-witness-generator/trie/trie.go
@@ -335,10 +335,6 @@ func (t *Trie) insert(n Node, prefix, key []byte, value Node) (bool, Node, error
 		}
 		// Otherwise, replace it with a short node leading up to the branch.
 		// (this is extension node)
-		if matchlen > 2 {
-			fmt.Println(matchlen)
-			fmt.Println("====")
-		}
 		return true, &ShortNode{key[:matchlen], branch, t.newFlag()}, nil
 
 	case *FullNode:
diff --git a/mpt-witness-generator/witness/prepare_witness.go b/mpt-witness-generator/witness/prepare_witness.go
index 90be7fcd62..8e4b6085bf 100644
--- a/mpt-witness-generator/witness/prepare_witness.go
+++ b/mpt-witness-generator/witness/prepare_witness.go
@@ -1,6 +1,7 @@
 package witness
 
 import (
+	"encoding/hex"
 	"fmt"
 	"math/big"
 
@@ -200,7 +201,7 @@ func obtainTwoProofsAndConvertToWitness(trieModifications []TrieModification, st
 			addrh := crypto.Keccak256(addr.Bytes())
 			accountAddr := trie.KeybytesToHex(addrh)
 
-			oracle.PrefetchAccount(statedb.Db.BlockNumber, tMod.Address, nil)
+			ap := oracle.PrefetchAccount(statedb.Db.BlockNumber, tMod.Address, nil)
 			oracle.PrefetchStorage(statedb.Db.BlockNumber, addr, tMod.Key, nil)
 
 			if specialTest == 1 {
@@ -211,7 +212,10 @@ func obtainTwoProofsAndConvertToWitness(trieModifications []TrieModification, st
 			check(err)
 
 			if !statedb.Exist(addr) {
-				statedb.CreateObject(addr)
+				if len(ap) > 0 {
+					ret, _ := hex.DecodeString(ap[len(ap)-1][2:])
+					statedb.SetStateObjectFromEncoding(addr, ret)
+				}
 			}
 
 			storageProof, neighbourNode1, extNibbles1, isLastLeaf1, isNeighbourNodeHashed1, err := statedb.GetStorageProof(addr, tMod.Key)