Inferbo: Infer-based buffer overrun analyzer

This sounds cool!

The first example has a pretty nasty typo. This:

  int *arr = malloc(9);

does of course not allocate enough space to make it safe to index arr up to 8. It only allocates 9 bytes, which on a typical 32-bit int machine only gives you room for 2.25 ints.

It should of course be:

  int *arr = malloc(9 * sizeof *arr);

It's fixed in the second example, where they introduce the malloc_wrapper().

They mention that they "manually injected into open source C source (spell, unhtml, spell++, bc, gzip). I also ran Inferbo on some internal Facebook code and Inferbo generated alarms in the third-party C source(e.g. open-ssl)."

They then go onto demonstrate how it did in those injected bug cases (really well), but they don't really get into what they found for those "out in the wild" alarms in the third-party C source. The latter seem to be more interesting than the injected bugs.

Can you clarify - does this ship with 0.9.4.1, or is there any procedure for using it beyond the standard Infer invocation?