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avoid rewriting if reduces to tautology

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-07-06 22:02:48 -07:00
parent dc932a93e2
commit dfbd285dae
1 changed files with 4 additions and 2 deletions
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6
src/smt/theory_lra.cpp
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@ -1373,8 +1373,10 @@ public:
expr_ref atom1(m);
proof_ref atomp(m);
ctx().get_rewriter()(atom, atom1, atomp);
atom = to_app(atom1);
TRACE("arith", tout << atom << "\n";
if (!m.is_false(atom1) && !m.is_true(atom1)) {
atom = to_app(atom1);
}
TRACE("arith", tout << t << ": " << atom << "\n";
m_solver->print_term(term, tout << "bound atom: "); tout << " <= " << k << "\n";);
ctx().internalize(atom, true);
ctx().mark_as_relevant(atom.get());