@oe1cxw Hey Clifford, hope all is well. I've been restudying smtv2 backend to refresh myself for a blog post. It's been going fairly well, but I ran into a snag.
Since you wrote the backend, I was wondering if you could POINT me in the right direction (MCVE)? >>
I'd recommend you play with short examples and have a look at the SMT2 code yosys-smtbmc sends to the SMT solver. (see "yosys-smtbmc --dump-smt2" and "yosys-smtbmc -v")
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Indeed, that's what I have been doing. I'll take a closer look. The examples I've been using seem to have the <mod>_is implementation return true for initial states, false otherwise.
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... oh... I just realized what you mean, nevermind. I still haven't constructed a good example (~100 lines of smtv2 sent to the solver) to demonstrate the difference, but this helps!
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