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fix bug in blocked clause elimination: it was ignoring unit literals

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-03-31 13:26:20 -07:00
parent aa2721517b
commit 55eb11d91b
5 changed files with 33 additions and 37 deletions
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16
src/tactic/smtlogics/qfufbv_tactic.cpp
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@ -40,6 +40,7 @@ Notes:
#include "tactic/smtlogics/qfbv_tactic.h"
#include "solver/tactic2solver.h"
#include "tactic/bv/bv_bound_chk_tactic.h"
#include "ackermannization/ackermannize_bv_tactic.h"
///////////////
class qfufbv_ackr_tactic : public tactic {
@ -158,13 +159,14 @@ static tactic * mk_qfufbv_preamble1(ast_manager & m, params_ref const & p) {
static tactic * mk_qfufbv_preamble(ast_manager & m, params_ref const & p) {
return and_then(mk_simplify_tactic(m),
mk_propagate_values_tactic(m),
mk_solve_eqs_tactic(m),
mk_elim_uncnstr_tactic(m),
if_no_proofs(if_no_unsat_cores(mk_reduce_args_tactic(m))),
if_no_proofs(if_no_unsat_cores(mk_bv_size_reduction_tactic(m))),
mk_max_bv_sharing_tactic(m)
);
mk_propagate_values_tactic(m),
mk_solve_eqs_tactic(m),
mk_elim_uncnstr_tactic(m),
if_no_proofs(if_no_unsat_cores(mk_reduce_args_tactic(m))),
if_no_proofs(if_no_unsat_cores(mk_bv_size_reduction_tactic(m))),
mk_max_bv_sharing_tactic(m),
if_no_proofs(if_no_unsat_cores(mk_ackermannize_bv_tactic(m,p)))
);
}
tactic * mk_qfufbv_tactic(ast_manager & m, params_ref const & p) {