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Fix bug in fpa2bv_converter, fixes #2136.

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This commit is contained in:
Christoph M. Wintersteiger 2019-02-12 14:02:30 +00:00
parent d9a51f8f8a
commit 64d085c188
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1 changed files with 1 additions and 1 deletions
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src/ast/fpa/fpa2bv_converter.cpp
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@ -3300,11 +3300,11 @@ void fpa2bv_converter::mk_to_bv(func_decl * f, unsigned num, expr * const * args
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)));
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),
m_bv_util.mk_sle(ll, pre_rounded),
m_bv_util.mk_sle(pre_rounded, ul));
dbg_decouple("fpa2bv_to_bv_in_range_ll", ll);
pre_rounded = m.mk_ite(x_is_neg, m_bv_util.mk_bv_neg(pre_rounded), pre_rounded);
}
dbg_decouple("fpa2bv_to_bv_in_range_ovfl", ovfl);
dbg_decouple("fpa2bv_to_bv_in_range_ul", ul);