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wip - proof checking, add support for distinct, other fixes

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This commit is contained in:
Nikolaj Bjorner 2022-10-17 17:51:01 -07:00
parent f175fcbb54
commit b758d5b2b1
10 changed files with 124 additions and 38 deletions
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6
src/sat/smt/arith_theory_checker.h
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@ -241,7 +241,7 @@ namespace arith {
return true;
if (check_ineq(m_ineq))
return true;
IF_VERBOSE(3, display_row(verbose_stream() << "Failed to verify Farkas with reduced row ", m_ineq) << "\n");
// convert to expression, maybe follows from a cut.
return false;
}
@ -452,7 +452,9 @@ namespace arith {
add_ineq(coeff, arg, sign);
}
else if (m.is_eq(arg, x, y)) {
if (sign)
if (is_bound && j + 1 == jst->get_num_args())
add_conseq(coeff, arg, sign);
else if (sign)
return check(); // it should be an implied equality
else
add_eq(x, y);