mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-13 12:28:44 +00:00
Code Activity

refactor weighted maxsmt

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-04-14 16:24:23 -07:00
parent 1db7e0a149
commit 00f45579cc
5 changed files with 940 additions and 796 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
src/opt/maxsmt.cpp
View file

@ -27,29 +27,29 @@ Notes:
namespace opt {
lbool maxsmt::operator()(opt_solver& s) {
lbool maxsmt::operator()(opt_solver* s) {
lbool is_sat;
m_msolver = 0;
m_s = &s;
m_s = s;
IF_VERBOSE(1, verbose_stream() << "(maxsmt)\n";);
if (m_soft_constraints.empty()) {
TRACE("opt", tout << "no constraints\n";);
m_msolver = 0;
is_sat = s.check_sat(0, 0);
is_sat = m_s->check_sat(0, 0);
}
else if (is_maxsat_problem(m_weights)) {
if (m_maxsat_engine == symbol("core_maxsat")) {
m_msolver = alloc(core_maxsat, m, s, m_soft_constraints);
m_msolver = alloc(core_maxsat, m, *m_s, m_soft_constraints);
}
else if (m_maxsat_engine == symbol("weighted_maxsat")) {
m_msolver = alloc(wmaxsmt, m, opt_solver::to_opt(s), m_soft_constraints, m_weights);
m_msolver = alloc(wmaxsmt, m, m_s.get(), m_soft_constraints, m_weights);
}
else {
m_msolver = alloc(fu_malik, m, s, m_soft_constraints);
m_msolver = alloc(fu_malik, m, *m_s, m_soft_constraints);
}
}
else {
m_msolver = alloc(wmaxsmt, m, opt_solver::to_opt(s), m_soft_constraints, m_weights);
m_msolver = alloc(wmaxsmt, m, m_s.get(), m_soft_constraints, m_weights);
}
if (m_msolver) {

4
src/opt/maxsmt.h
View file

@ -44,7 +44,7 @@ namespace opt {
class maxsmt {
ast_manager& m;
opt_solver* m_s;
ref<opt_solver> m_s;
volatile bool m_cancel;
expr_ref_vector m_soft_constraints;
expr_ref_vector m_answer;
@ -58,7 +58,7 @@ namespace opt {
public:
maxsmt(ast_manager& m): m(m), m_s(0), m_cancel(false), m_soft_constraints(m), m_answer(m) {}
lbool operator()(opt_solver& s);
lbool operator()(opt_solver* s);
void set_cancel(bool f);

4
src/opt/opt_context.cpp
View file

@ -194,7 +194,7 @@ namespace opt {
lbool context::execute_maxsat(symbol const& id, bool committed) {
model_ref tmp;
maxsmt& ms = *m_maxsmts.find(id);
lbool result = ms(get_solver());
lbool result = ms(m_solver.get());
if (result == l_true && committed) ms.commit_assignment();
if (result != l_false && (ms.get_model(tmp), tmp.get())) ms.get_model(m_model);
return result;
@ -381,7 +381,7 @@ namespace opt {
params_ref lia_p;
lia_p.set_bool("compile_equality", optp.pb_compile_equality());
tac3->updt_params(lia_p);
m_simplify = and_then(tac0.get(), tac2.get(), tac3.get(), mk_nnf_tactic(m));
m_simplify = and_then(tac0.get(), tac2.get(), tac3.get());
}
else {
m_simplify = tac0.get();

1709
src/opt/weighted_maxsat.cpp
View file

File diff suppressed because it is too large Load diff

5
src/opt/weighted_maxsat.h
View file

@ -31,7 +31,10 @@ namespace opt {
struct imp;
imp* m_imp;
public:
wmaxsmt(ast_manager& m, opt_solver& s, expr_ref_vector& soft_constraints, vector<rational> const& weights);
wmaxsmt(ast_manager& m,
opt_solver* s,
expr_ref_vector& soft_constraints,
vector<rational> const& weights);
~wmaxsmt();
virtual lbool operator()();
virtual rational get_lower() const;