fn verify(self) -> anyhow::Result<VerificationResult> {
        let old_root_hash = self.l1_batch_env.previous_batch_hash.unwrap();
        let enumeration_index = self.merkle_paths.next_enumeration_index();
        let batch_number = self.l1_batch_env.number;

        let read_storage_ops = self
            .vm_run_data
            .witness_block_state
            .read_storage_key
            .into_iter();

        let initial_writes_ops = self
            .vm_run_data
            .witness_block_state
            .is_write_initial
            .into_iter();

        // We need to define storage slots read during batch execution, and their initial state;
        // hence, the use of both read_storage_ops and initial_writes_ops.
        // StorageSnapshot also requires providing enumeration indices,
        // but they only matter at the end of execution when creating pubdata for the batch,
        // which is irrelevant in this case. Thus, enumeration indices are set to dummy values.
        let storage = read_storage_ops
            .enumerate()
            .map(|(i, (hash, bytes))| (hash.hashed_key(), Some((bytes, i as u64 + 1u64))))
            .chain(initial_writes_ops.filter_map(|(key, initial_write)| {
                initial_write.then_some((key.hashed_key(), None))
            }))
            .collect();

        let factory_deps = self
            .vm_run_data
            .used_bytecodes
            .into_iter()
            .map(|(hash, bytes)| (u256_to_h256(hash), bytes.into_flattened()))
            .collect();

        let storage_snapshot = StorageSnapshot::new(storage, factory_deps);
        let storage_view = StorageView::new(storage_snapshot).to_rc_ptr();
        let vm = LegacyVmInstance::new(self.l1_batch_env, self.system_env, storage_view);
        let vm_out = execute_vm(self.l2_blocks_execution_data, vm, self.pubdata_params)?;

        let block_output_with_proofs = get_bowp(self.merkle_paths)?;

        let instructions: Vec<TreeInstruction> =
            generate_tree_instructions(enumeration_index, &block_output_with_proofs, vm_out)?;

        block_output_with_proofs
            .verify_proofs(&Blake2Hasher, old_root_hash, &instructions)
            .context("Failed to verify_proofs {l1_batch_number} correctly!")?;

        Ok(VerificationResult {
            value_hash: block_output_with_proofs.root_hash().unwrap(),
            batch_number,
        })
    }
Verify that the L1Batch produces the expected root hash
by executing the VM and verifying the merkle paths of all
touch storage slots.

# Errors

Returns a verbose error of the failure, because any error is
not actionable.
core/lib/tee_verifier/src/lib.rs