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fix #6336

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This commit is contained in:
Nikolaj Bjorner 2022-09-09 12:33:28 -07:00
parent 809838fede
commit 3c8c80bbac
1 changed files with 8 additions and 2 deletions
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10
src/ast/fpa/fpa2bv_converter.cpp
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@ -3431,8 +3431,14 @@ void fpa2bv_converter::mk_to_bv(func_decl * f, unsigned num, expr * const * args
}
else {
expr_ref ll(m);
ll = m_bv_util.mk_sign_extend(3, m_bv_util.mk_concat(bv1, m_bv_util.mk_numeral(0, bv_sz-1)));
ul = m_bv_util.mk_zero_extend(4, m_bv_util.mk_bv_neg(m_bv_util.mk_numeral(1, bv_sz-1)));
ll = bv1;
if (bv_sz > 1)
ll = m_bv_util.mk_concat(bv1, m_bv_util.mk_numeral(0, bv_sz - 1));
ll = m_bv_util.mk_sign_extend(3, ll);
if (bv_sz > 1)
ul = m_bv_util.mk_zero_extend(4, m_bv_util.mk_bv_neg(m_bv_util.mk_numeral(1, bv_sz - 1)));
else
ul = m_bv_util.mk_numeral(0, 4);
ovfl = m.mk_or(ovfl, m_bv_util.mk_sle(pre_rounded, m_bv_util.mk_bv_neg(m_bv_util.mk_numeral(1, bv_sz + 3))));
pre_rounded = m.mk_ite(x_is_neg, m_bv_util.mk_bv_neg(pre_rounded), pre_rounded);
in_range = m.mk_and(m.mk_not(ovfl),