diff --git a/src/witness/artifacts.rs b/src/witness/artifacts.rs
index d8fad4c3..0b818265 100644
--- a/src/witness/artifacts.rs
+++ b/src/witness/artifacts.rs
@@ -121,13 +121,6 @@ pub struct MemoryArtifacts<F: SmallField> {
         CircuitsEntryAccumulatorSparse<(u32, QueueStateWitness<F, FULL_SPONGE_QUEUE_STATE_WIDTH>)>,
 }
 
-#[derive(Derivative)]
-#[derivative(Default)]
-pub struct ImplicitMemoryArtifacts<F: SmallField> {
-    pub memory_queries: Vec<MemoryQuery>,
-    pub memory_queue_states: Vec<MemoryQueueState<F>>,
-}
-
 #[derive(Derivative)]
 #[derivative(Default)]
 pub struct LogCircuitsArtifacts<F: SmallField> {
diff --git a/src/witness/individual_circuits/memory_related/decommit_code.rs b/src/witness/individual_circuits/memory_related/decommit_code.rs
index baf22d3e..49a3d1a7 100644
--- a/src/witness/individual_circuits/memory_related/decommit_code.rs
+++ b/src/witness/individual_circuits/memory_related/decommit_code.rs
@@ -8,7 +8,6 @@ use crate::zk_evm::ethereum_types::U256;
 use crate::zkevm_circuits::base_structures::decommit_query::DecommitQueryWitness;
 use crate::zkevm_circuits::base_structures::decommit_query::DECOMMIT_QUERY_PACKED_WIDTH;
 use crate::zkevm_circuits::code_unpacker_sha256::input::*;
-use artifacts::ImplicitMemoryArtifacts;
 use circuit_definitions::encodings::decommittment_request::normalized_preimage_as_u256;
 use circuit_definitions::encodings::decommittment_request::DecommittmentQueueSimulator;
 use circuit_definitions::encodings::decommittment_request::DecommittmentQueueState;
diff --git a/src/witness/individual_circuits/memory_related/ecrecover.rs b/src/witness/individual_circuits/memory_related/ecrecover.rs
index 7db17f09..bb31b44a 100644
--- a/src/witness/individual_circuits/memory_related/ecrecover.rs
+++ b/src/witness/individual_circuits/memory_related/ecrecover.rs
@@ -1,5 +1,5 @@
 use super::*;
-use crate::witness::artifacts::{DemuxedLogQueries, ImplicitMemoryArtifacts, LogQueueStates};
+use crate::witness::artifacts::{DemuxedLogQueries, LogQueueStates};
 use crate::witness::aux_data_structs::one_per_circuit_accumulator::LastPerCircuitAccumulator;
 use crate::witness::aux_data_structs::MemoryQueuePerCircuitSimulator;
 use crate::zk_evm::aux_structures::LogQuery as LogQuery_;
diff --git a/src/witness/individual_circuits/memory_related/keccak256_round_function.rs b/src/witness/individual_circuits/memory_related/keccak256_round_function.rs
index 61adbd90..2b83ad3e 100644
--- a/src/witness/individual_circuits/memory_related/keccak256_round_function.rs
+++ b/src/witness/individual_circuits/memory_related/keccak256_round_function.rs
@@ -1,5 +1,5 @@
 use super::*;
-use crate::witness::artifacts::{DemuxedLogQueries, ImplicitMemoryArtifacts, LogQueueStates};
+use crate::witness::artifacts::{DemuxedLogQueries, LogQueueStates};
 use crate::witness::aux_data_structs::one_per_circuit_accumulator::LastPerCircuitAccumulator;
 use crate::witness::aux_data_structs::MemoryQueuePerCircuitSimulator;
 use crate::zk_evm::aux_structures::LogQuery as LogQuery_;
diff --git a/src/witness/individual_circuits/memory_related/mod.rs b/src/witness/individual_circuits/memory_related/mod.rs
index ec09f7c9..52ce4957 100644
--- a/src/witness/individual_circuits/memory_related/mod.rs
+++ b/src/witness/individual_circuits/memory_related/mod.rs
@@ -156,25 +156,6 @@ impl<F: SmallField> ImplicitMemoryStates<F> {
             + self.secp256r1_memory_states.len()
             + self.sha256_memory_states.len()
     }
-
-    fn get_vectors(&self) -> [&Vec<MemoryQueueState<F>>; 5] {
-        [
-            &self.decommitter_memory_states,
-            &self.keccak256_memory_states,
-            &self.sha256_memory_states,
-            &self.ecrecover_memory_states,
-            &self.secp256r1_memory_states,
-        ]
-    }
-
-    pub fn iter(&self) -> ImplicitMemoryStatesIter<F> {
-        let mut outer_iter = self.get_vectors().into_iter();
-        let last_vector_iter = outer_iter.next().unwrap().iter();
-        ImplicitMemoryStatesIter {
-            last_vector: last_vector_iter,
-            outer_iter,
-        }
-    }
 }
 
 use core::array::IntoIter as ArrayIntoIter;
@@ -215,11 +196,14 @@ fn get_simulator_snapshot<F: SmallField>(
     }
 }
 
+use crate::witness::aux_data_structs::one_per_circuit_accumulator::LastPerCircuitAccumulator;
+
 pub(crate) fn simulate_implicit_memory_queues<
     F: SmallField,
     R: BuildableCircuitRoundFunction<F, 8, 12, 4> + AlgebraicRoundFunction<F, 8, 12, 4>,
 >(
     memory_queue_simulator: &mut MemoryQueuePerCircuitSimulator<F>,
+    memory_queue_states_accumulator: &mut LastPerCircuitAccumulator<MemoryQueueState<F>>,
     implicit_memory_queries: &ImplicitMemoryQueries,
     round_function: R,
 ) -> ImplicitMemoryStates<F> {
@@ -234,6 +218,7 @@ pub(crate) fn simulate_implicit_memory_queues<
                     .push_and_output_intermediate_data(*query, &round_function);
 
                 memory_states.push(intermediate_info);
+                memory_queue_states_accumulator.push(intermediate_info);
             }
             snapshots.push(get_simulator_snapshot(memory_queue_simulator)); // after
 
diff --git a/src/witness/individual_circuits/memory_related/ram_permutation.rs b/src/witness/individual_circuits/memory_related/ram_permutation.rs
index 789fd459..69ce6c00 100644
--- a/src/witness/individual_circuits/memory_related/ram_permutation.rs
+++ b/src/witness/individual_circuits/memory_related/ram_permutation.rs
@@ -12,7 +12,7 @@ use crate::zk_evm::ethereum_types::U256;
 use crate::zkevm_circuits::{
     base_structures::memory_query::MEMORY_QUERY_PACKED_WIDTH, ram_permutation::input::*,
 };
-use artifacts::{ImplicitMemoryArtifacts, MemoryArtifacts};
+use artifacts::MemoryArtifacts;
 use circuit_definitions::circuit_definitions::base_layer::{
     RAMPermutationInstanceSynthesisFunction, ZkSyncBaseLayerCircuit,
 };
diff --git a/src/witness/individual_circuits/memory_related/secp256r1_verify.rs b/src/witness/individual_circuits/memory_related/secp256r1_verify.rs
index 0117ac3e..67af787b 100644
--- a/src/witness/individual_circuits/memory_related/secp256r1_verify.rs
+++ b/src/witness/individual_circuits/memory_related/secp256r1_verify.rs
@@ -1,5 +1,5 @@
 use super::*;
-use crate::witness::artifacts::{DemuxedLogQueries, ImplicitMemoryArtifacts, LogQueueStates};
+use crate::witness::artifacts::{DemuxedLogQueries, LogQueueStates};
 use crate::witness::aux_data_structs::one_per_circuit_accumulator::LastPerCircuitAccumulator;
 use crate::witness::aux_data_structs::MemoryQueuePerCircuitSimulator;
 use crate::zk_evm::aux_structures::LogQuery as LogQuery_;
diff --git a/src/witness/individual_circuits/memory_related/sha256_round_function.rs b/src/witness/individual_circuits/memory_related/sha256_round_function.rs
index 4142101d..23d372b6 100644
--- a/src/witness/individual_circuits/memory_related/sha256_round_function.rs
+++ b/src/witness/individual_circuits/memory_related/sha256_round_function.rs
@@ -1,6 +1,6 @@
 use super::*;
 use crate::boojum::gadgets::traits::allocatable::CSAllocatable;
-use crate::witness::artifacts::{DemuxedLogQueries, ImplicitMemoryArtifacts, LogQueueStates};
+use crate::witness::artifacts::{DemuxedLogQueries, LogQueueStates};
 use crate::witness::aux_data_structs::one_per_circuit_accumulator::LastPerCircuitAccumulator;
 use crate::witness::aux_data_structs::MemoryQueuePerCircuitSimulator;
 use crate::zk_evm::aux_structures::LogQuery as LogQuery_;
diff --git a/src/witness/oracle.rs b/src/witness/oracle.rs
index 5330e71b..3f3acf5f 100644
--- a/src/witness/oracle.rs
+++ b/src/witness/oracle.rs
@@ -17,7 +17,7 @@ use crate::boojum::gadgets::traits::allocatable::CSAllocatable;
 use crate::ethereum_types::U256;
 use crate::toolset::GeometryConfig;
 use crate::witness::artifacts::{
-    DemuxedLogQueries, ImplicitMemoryArtifacts, MemoryArtifacts, MemoryCircuitsArtifacts,
+    DemuxedLogQueries, MemoryArtifacts, MemoryCircuitsArtifacts,
 };
 use crate::witness::aux_data_structs::one_per_circuit_accumulator::{
     CircuitsEntryAccumulatorSparse, LastPerCircuitAccumulator,
@@ -893,16 +893,11 @@ fn simulate_memory_queue(
     use crate::witness::individual_circuits::memory_related::simulate_implicit_memory_queues;
     let implicit_memory_states = simulate_implicit_memory_queues(
         &mut memory_queue_simulator,
+        &mut memory_queue_states_accumulator,
         &implicit_memory_queries,
         round_function,
     );
 
-    // push implicit queries
-    memory_queue_states_accumulator.reserve_exact_flat(implicit_memory_states.amount_of_states());
-    for state in implicit_memory_states.iter() {
-        memory_queue_states_accumulator.push(*state);
-    }
-
     (
         memory_artifacts_for_main_vm,
         final_explicit_memory_queue_state,
@@ -1095,10 +1090,8 @@ fn process_memory_related_circuits<
     // direct VM related part is done, other subcircuit's functionality is moved to other functions
     // that should properly do sorts and memory writes
 
-    let amount_of_implicit_queries = implicit_memory_queries.amount_of_queries();
-
     assert_eq!(
-        amount_of_implicit_queries,
+        implicit_memory_queries.amount_of_queries(),
         implicit_memory_states.amount_of_states()
     );