these package may be needed to be installed
python3 -m pip install mip
python3 -m pip install numpy
python3 -m pip install pandas
python3 -m pip install networkx
python3 -m pip install matplotlib
Usage: int_ils2.py <instance_file> <|D|> <|F|> <|V|> <|M|>
Example: int_ils2.py data/50_2021 50 100 8 4