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fix model completion bug in PDR, addhoc handling of reals for arithmetic realizers

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2012-11-06 15:38:07 +02:00
parent 2c66afadd6
commit cec851440e
2 changed files with 12 additions and 3 deletions
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9
src/muz_qe/qe_arith_plugin.cpp
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@ -1863,11 +1863,18 @@ public:
// x := coeff * x + s
def = m_util.mk_add(m_util.mk_mul(x_t.get_coeff(), def), x_t.get_term());
}
if (is_strict) {
SASSERT(m_util.m_arith.is_real(x));
// We actually want a supremum, such that dual inequalities are satisfied.
// i.e. for every dual inequality , if the dual bound is feasible, make sure to
// choose a value in the feasible range.
def = m_util.mk_sub(def, m_util.mk_one(x));
}
m_util.simplify(def);
TRACE("qe", tout << "TBD: " << a << " " << mk_pp(def, m) << "\n";);
TRACE("qe", tout << "TBD (for Real): " << a << " " << mk_pp(def, m) << "\n";);
}
expr_ref mk_not(expr* e) {