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adding simplex

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-02-12 20:20:52 -08:00
parent a594597906
commit 51cb63b6c0
8 changed files with 42 additions and 13 deletions
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13
src/opt/opt_context.cpp
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@ -29,6 +29,9 @@ Notes:
#include "elim01_tactic.h"
#include "solve_eqs_tactic.h"
#include "simplify_tactic.h"
#include "propagate_values_tactic.h"
#include "solve_eqs_tactic.h"
#include "elim_uncnstr_tactic.h"
#include "tactical.h"
#include "model_smt2_pp.h"
@ -93,11 +96,13 @@ namespace opt {
s.assert_expr(m_hard_constraints[i].get());
}
IF_VERBOSE(1, verbose_stream() << "(optimize:check-sat)\n";);
lbool is_sat = s.check_sat_core(0,0);
if (is_sat != l_true) {
m_model = 0;
return is_sat;
}
IF_VERBOSE(1, verbose_stream() << "(optimize:sat)\n";);
s.get_model(m_model);
m_optsmt.setup(s);
update_lower();
@ -299,7 +304,12 @@ namespace opt {
for (unsigned i = 0; i < fmls.size(); ++i) {
g->assert_expr(fmls[i].get());
}
tactic_ref tac0 = mk_simplify_tactic(m);
tactic_ref tac0 =
and_then(mk_simplify_tactic(m),
mk_propagate_values_tactic(m),
mk_solve_eqs_tactic(m),
mk_elim_uncnstr_tactic(m),
mk_simplify_tactic(m));
tactic_ref tac2 = mk_elim01_tactic(m);
tactic_ref tac3 = mk_lia2card_tactic(m);
tactic_ref tac;
@ -317,6 +327,7 @@ namespace opt {
SASSERT(result.size() == 1);
goal* r = result[0];
fmls.reset();
expr_ref tmp(m);
for (unsigned i = 0; i < r->size(); ++i) {
fmls.push_back(r->form(i));
}