Setting logic for solver in Z3 (API)

Question

I notice that the Z3 C++ (and C) API allows you to supply the logic to be used.

I have two questions about this that I couldn\'t answer by looking online:

Answer 1

Try it out and see!

Usually it does make a big difference. Setting the logic means the solver will use a specialized tactic to solve the formula, instead of going through the generic loop. Z3 will also try to guess the logic, but it's usually better to just provide it upfront.