Z3 uses a sophisticated and fast garbage collection scheme internally that doesn't mesh well with Rust idioms.
It's reference-counted at the boundaries. See https://github.com/Z3Prover/z3/blob/daf2506b6002149d531cb6c9...
alt Hacker News
It's reference-counted at the boundaries. See https://github.com/Z3Prover/z3/blob/daf2506b6002149d531cb6c9...