The F-CVRP instances may be downloaded from the following link:
https://www.dropbox.com/sh/fndj2koc3nuwrw9/AABCntHA1iarAhUlqFiYkVKfa?dl=1
The instances must be read in the following manner:
1st line: |N| L V Q K
2nd line: List of the number of family members (nl)
3rd line: List of the number of family visits (vl)
4th line: List of the family demands (dl)
5th line until the end: Cost matrix (cij)