This online appendix contains 

1) the PDDL files used for   
   (subdirectory ``domains'')

2) the raw data obtained in   
   (subdirectory ``results'')

3) graphical representations of the results obtained in 
   (subdirectory ``graphical_representations'')

the comparison of FF to HSP, as described in Section 8.3. Each
subdirectory contains a README file describing in detail the provided
files. Additionally, the domains directory contains a suite of smaller
briefcaseworld examples which we used for comparing IPP to FF, results
described in Section 8.2.
