The name of the files are in the format:
Pat_[number of activities]_[number of resources]_[RF]_[RC]_[SP].patx



The instances are stored in a modified version of the patterson format:

Line 1: 
    Number of activities (starting with node 1 and two dummy nodes inclusive)
    Number of renewable resources
    Number of activities that are randomly selected
    Maximum variation in starting time

Line 2: (one number for each resource)
    Availability for each renewable resource

Next lines from (one line for each activity, starting with a dummy start activity and ending with a dummy end activity)
    Activity duration
    1 for fixed activity, 0 for selectable activity
    Resource requirements for each resource type
    Number of successors
    Activity ID for each successor