When an accrued interest payment is calculated, the smart contract also checks the last utilization delta payment to see if it was correct. If it was not correct, the tracker calculates what the correction should be (undoing the bad delta and adding the correct one), then repeats the process, checking the next payment back. Once the smart contract finds the total correction, it is applied in either a payment or clawback operation depending on whether the correction was positive or negative. It should be noted that since there is a 5 minute timebounds on protocol transactions, the utilization tracker assumes that any accrued interest payment 5 minutes newer than the previous one was correct.