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enable unsat core extraction in nlsat_tactic

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-11-01 17:57:28 +01:00
parent 84172302a2
commit 305e080239
9 changed files with 46 additions and 20 deletions
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4
src/solver/tactic2solver.cpp
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@ -137,7 +137,9 @@ lbool tactic2solver::check_sat_core(unsigned num_assumptions, expr * const * ass
g->assert_expr(m_assertions.get(i));
}
for (unsigned i = 0; i < num_assumptions; i++) {
g->assert_expr(assumptions[i], m.mk_asserted(assumptions[i]), m.mk_leaf(assumptions[i]));
proof_ref pr(m.mk_asserted(assumptions[i]), m);
expr_dependency_ref ans(m.mk_leaf(assumptions[i]), m);
g->assert_expr(assumptions[i], pr, ans);
}
model_ref md;