Splash2 Barnes benchmark with m2s, Error: Division by 0

[qfettes]

When running the command:

m2s --ctx-config benchmark.ini --x86-config x86-config.ini

where these are the config files:
benchmark.ini
[ Context 0 ]
Exe = barnes.i386
Args = $NTHREADS
Stdin = input

x86-config.ini
[ General ]
Cores = 16
Threads = 2

I get the following error as console output:
` Multi2Sim 5.0 - A Simulation Framework for CPU-GPU Heterogeneous Computing
Please use command 'm2s --help' for a list of command-line options.
Simulation alpha-numeric ID: 567Ca

            Hack code: Plummer model

 nbody     dtime       eps       tol     dtout     tstop    fcells     NPROC
  2048   0.02500    0.0500      1.00     0.250     0.075      2.00         0

[x86] [pid 1000] [eip 0x80499f4] Error: Division by 0`

I understand that this is due to NPROC being 0; however, I had thought that by setting the number of cores to 2 and the number of threads to 2, NPROC would be 4. Any help would be appreciated!