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force to_fp to disambiguate +zero and -zero, #6548, filter unsupported on relevancy

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2023-01-24 12:29:42 -08:00
parent 47c7ed3b17
commit eac7d7576f
2 changed files with 3 additions and 1 deletions
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src/ast/fpa/fpa2bv_converter.cpp
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@ -2809,6 +2809,8 @@ void fpa2bv_converter::mk_to_fp_real(func_decl * f, sort * s, expr * rm, expr *
expr * e = m.mk_eq(m_util.mk_to_real(result), x);
m_extra_assertions.push_back(e);
// x = 0 -> result = 0+
m_extra_assertions.push_back(m.mk_implies(m.mk_eq(x, zero), m.mk_eq(result, m_util.mk_pzero(result->get_sort()))));
}
SASSERT(is_well_sorted(m, result));