ParMETIS_V3_PartKway Segmentation Fault Even When Correctly Invoked

I am trying to use ParMETIS to partition my graph. In particular, I have written a small program (linked below) which calls ParMETIS_V3_PartKway with appropriate parameters. Even though all the parameters supplied to the function are correct, the API crashes with a segmentation fault.

Note that I am using the same graph as the example graph on page 12 (Section 4.2.1) in the manual. The xadj, adjncy, vtxdist printed out by my program are exactly same as in the manual.

Program is available here: http://www.cs.ucr.edu/~kvora001/contents/parmetis/partitioner.cpp
Input graph is available here: http://www.cs.ucr.edu/~kvora001/contents/parmetis/sample.ip

The command used to run is: mpirun -np 3 ./partitioner sample.ip 15 3

Output using mvapich2 is available here: http://www.cs.ucr.edu/~kvora001/contents/parmetis/out.mvapich2.out
Output using openmpi is available here: http://www.cs.ucr.edu/~kvora001/contents/parmetis/out.openmpi.out

Note that the ParMETIS library was successfully compiled with mvapich2-1.9 when the above program was run with mvapich2; similarly, the ParMETIS library was successfully compiled with openmpi-1.6 when the above program was run with openmpi.

Can someone please let me know how to fix the above issue?