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Merge f8ba42c5c4 into 3bf4d2b53d

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Copilot 2026-06-18 19:24:48 +00:00 • committed by GitHub
commit 0f84ede6c1
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2 changed files with 24 additions and 1 deletions
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23
src/test/api.cpp
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@ -81,6 +81,29 @@ void test_bvneg() {
std::cout << r << "\n";
}
{
Z3_sort bv1 = Z3_mk_bv_sort(ctx, 1);
Z3_sort bv64 = Z3_mk_bv_sort(ctx, 64);
Z3_ast x = Z3_mk_fresh_const(ctx, "x", bv1);
Z3_ast sx = Z3_mk_sign_ext(ctx, 63, x);
Z3_ast zero = Z3_mk_int64(ctx, 0, bv64);
Z3_ast minus_one = Z3_mk_int64(ctx, -1, bv64);
Z3_ast args[2] = { Z3_mk_eq(ctx, sx, zero), Z3_mk_eq(ctx, sx, minus_one) };
Z3_ast claim = Z3_mk_or(ctx, 2, args);
Z3_solver_push(ctx, s);
Z3_solver_assert(ctx, s, Z3_mk_not(ctx, claim));
ENSURE(Z3_solver_check(ctx, s) == Z3_L_FALSE);
Z3_solver_pop(ctx, s, 1);
Z3_solver_push(ctx, s);
Z3_solver_assert(ctx, s, Z3_mk_eq(ctx, sx, minus_one));
std::string smt2 = Z3_solver_to_string(ctx, s);
// Bit-vector numerals must print in canonical unsigned SMT2 form.
ENSURE(smt2.find("(_ bv-") == std::string::npos);
Z3_solver_pop(ctx, s, 1);
}
Z3_solver_dec_ref(ctx, s);
Z3_del_config(cfg);
Z3_del_context(ctx);

2
src/util/mpz.cpp
View file

@ -700,7 +700,7 @@ mpz mpz_manager<SYNCH>::mod2k(mpz const & a, unsigned k) {
ensure_mpz_t a1(a);
mk_big(result);
MPZ_BEGIN_CRITICAL();
mpz_tdiv_r_2exp(*result.m_ptr, a1(), k);
mpz_fdiv_r_2exp(*result.m_ptr, a1(), k);
MPZ_END_CRITICAL();
#endif
return result;