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https://github.com/Z3Prover/z3
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b74e35f4fb
A `root-obj`-driven unsat case was exiting with a leaked `mpz_manager` allocation even though solver output was correct. The leak came from temporary rational bounds created during algebraic-number comparison and not released before shutdown. - **Root cause** - `algebraic_numbers::compare_core()` materialized interval bounds as raw `mpq` temporaries. - Those temporaries could allocate backing `mpz` storage, but their lifetime was not tied to the manager, so the allocator retained leaked cells at process exit. - **Change** - Replace the raw `mpq` temporaries with `scoped_mpq` in `/src/math/polynomial/algebraic_numbers.cpp`. - This keeps the comparison logic unchanged while making temporary bound conversion use RAII-managed cleanup. - **Effect** - `root-obj` comparisons no longer leave `mpz_manager` allocations behind. - Solver behavior is unchanged; the fix is limited to temporary numeral lifetime management. ```c++ - mpq l_a, u_a, l_b, u_b; + scoped_mpq l_a(qm()), u_a(qm()), l_b(qm()), u_b(qm()); ``` Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> |
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| .. | ||
| dd | ||
| grobner | ||
| hilbert | ||
| interval | ||
| lp | ||
| polynomial | ||
| realclosure | ||
| simplex | ||
| subpaving | ||