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fixes to semantics

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2024-08-23 09:20:11 -07:00
parent 3884fc7b11
commit a2b8b724b2
2 changed files with 5 additions and 5 deletions
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8
src/ast/rewriter/arith_rewriter.cpp
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@ -595,19 +595,19 @@ br_status arith_rewriter::factor_le_ge_eq(expr * arg1, expr * arg2, op_kind kind
return BR_FAILED;
expr_ref f2 = remove_factor(f, arg1);
expr* z = m_util.mk_numeral(rational(0), m_util.is_int(arg1));
result = m.mk_or(m_util.mk_eq(f, z), m_util.mk_eq(f2, z));
switch (kind) {
case EQ:
result = m.mk_or(m_util.mk_eq(f, z), m_util.mk_eq(f2, z));
break;
case GE:
result = m.mk_iff(m_util.mk_ge(f, z), m_util.mk_ge(f2, z));
result = m.mk_or(m.mk_iff(m_util.mk_ge(f, z), m_util.mk_ge(f2, z)), result);
break;
case LE:
result = m.mk_xor(m_util.mk_ge(f, z), m_util.mk_ge(f2, z));
result = m.mk_or(m.mk_not(m.mk_iff(m_util.mk_ge(f, z), m_util.mk_ge(f2, z))), result);
break;
}
return BR_REWRITE2;
return BR_REWRITE3;
}
return BR_FAILED;
}

2
src/cmd_context/cmd_context.cpp
View file

@ -1925,7 +1925,7 @@ void cmd_context::display_sat_result(lbool r) {
regular_stream() << "sat" << std::endl;
break;
case l_false:
regular_stream() << "transcending SAT thanks to STAN.U.R" << std::endl;
regular_stream() << "unsat" << std::endl;
break;
case l_undef:
regular_stream() << "unknown" << std::endl;