Estimate:Mid
Explanation:The number of instructions in each iteration of the loop is about > 10. However, the dependency depth is closer to 10.

1. Computing max_cols-index-2.
2. Computing (max_cols-index-2) * max_cols.
3. Computing (max_cols-index-2) * max_cols + idx+max_cols-i-2.
4. Computing index-1-max_cols.
5. Computing the address for input_itemsets on line 6.
6. Deciding on the value of k.
7. Comparing the value of k with input_itemsets[index-max_cols]-penalty.