Assembly
Tested and developed on arduino with c?
wth???
When was the last time you updated your Avast? :p
Also, check out these posts:
It’s updating antivirus and other crap database automatically every day (maybe even several times)!
Anyway can someone post that pic from other host, I would like to see that driver ( I don’t understand them but I like to see them :D)
It doesn't really matter, but your Avast looks a little different than mine.
At the time of this post, my Avast program is current (version 11.1.2241)
Here ya go. ;)
Unfortunately even if I were to correctly deduce the answer my post count would nullify it. Even so, I am looking forward to the arrival of the lucidrv drivers and will definitely want these new drivers when they become available for purchase.
Assembly would have been my guess as well.
Thermal simulation in German ? 
Very nice work by the way
My guess is RPL.
get a real antivirus
Avast isn't perfect, but in my opinion, it's the best free antivirus available. :)
And it ain't that far behind the best commercial antivirus available. :O
+ 1
I agree.
When I used Windows in the past, Avast always installed on every machines I own.
One killer feature is its ability to scan computer on boot. This way Avast can kick any virus even before the Windows started.
Matlab ?
Could it be Lua?
Real programmers use "copy con program.com" :) Here's proof that it works: youtube
So I use "copy con firmware.hex" - nah, just kidding, I write my firmwares in C (AVR-GCC), but the question was about the thermal simulation, and so far no hit.
About real programmers again (from xkcd):
since I can’t guess anymore, when will these be available? Did I miss that?
Java?
Structured text
Pascal ?