I had a really bad experience overall. During the interview, he didn't ask about my background or give me a chance to talk about it. After the phone screen, I heard he thought I did well overall, but weren't interested in moving on because I hadn't worked on any real world code bases. However, if he'd read my resume he'd see that's false. He also criticized my ability to communicate while never trying to communicate with me during the interview. He repeatedly cut me off and didn't allow me to explain my reasoning, or even justify myself and inserted the correct reasoning in there himself. Overall, this was one of the worst interviews I've ever had. I felt like the interviewer didn't even take the time to look at my resume and was incredibly dismissive. The phone screen itself went well, but the interviewer did a bad job explaining what the question was, so I had to keep prompting him. Topics covered included things like what are CFGs, how do we use them to analyze code statically, and then asked a couple of real world examples of how they use CFGs to detect dead code or problematic code and what problems we'd run into while trying to figure this out.