[Question] Is it possible to add randomness to generated solutions?

[jonathan-dilorenzo]

Currently (at least in my use of Z3), if I pass Z3 the same formula, it will generate the same solution deterministically every time, which is generally great.

However, I have a use-case (as part of a Fuzzer) where it would be amazing if I could somehow tell Z3 to randomize the solutions more (ideally w.r.t. a seed). Is there any setting that allows for this or do I need to perturb the formula externally to achieve my goal?

[NikolajBjorner]

use options smt.random_seed=NNN and sat.random_seed=NNN to ensure either SMT or SAT core uses randomization.

[jonathan-dilorenzo]

Amazing! Thanks Nikolaj! We'll give it a shot.