how to use csmith random c generator?

I am new here. Could anyone help me, on how to use yapgen to generate a random c program.

I tried running the run_gen.py script that enter link description here` I saw. But, i got a warning and an error like this:

Warning: please set YARPGEN_HOME envirnoment variable to point to test generator path, using C:\Users\..\Python\Python36-32\yarpgen-master for now

and

File C:\Users\..\Python\Python36-32\yarpgen-master\yarpgen wasn't found

Any help would be much appreciated. Thanks in advance !