mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-10-02 14:09:30 +00:00
Code Activity

enable wcnf output for weighted maxsat problems

Browse source
This commit is contained in:
Nikolaj Bjorner 2021-02-28 09:59:36 -08:00
parent b02cba6106
commit 13f05ae9dc
6 changed files with 115 additions and 60 deletions
Download patch file Download diff file Expand all files Collapse all files

18
src/opt/opt_context.cpp
View file

@ -24,6 +24,7 @@ Notes:
#include "ast/pb_decl_plugin.h"
#include "ast/ast_smt_pp.h"
#include "ast/ast_pp_util.h"
#include "ast/display_dimacs.h"
#include "model/model_smt2_pp.h"
#include "tactic/goal.h"
#include "tactic/tactic.h"
@ -1540,9 +1541,12 @@ namespace opt {
m_enable_sls = _p.enable_sls();
m_maxsat_engine = _p.maxsat_engine();
m_pp_neat = _p.pp_neat();
m_pp_wcnf = _p.pp_wcnf();
}
std::string context::to_string() const {
std::string context::to_string() {
if (m_pp_wcnf)
return to_wcnf();
return to_string(false, m_scoped_state.m_hard, m_scoped_state.m_objectives);
}
@ -1557,6 +1561,9 @@ namespace opt {
auto const& objectives = m_objectives;
if (objectives.size() > 1)
throw default_exception("only single objective weighted MaxSAT wcnf output is supported");
ptr_vector<expr> soft_f;
vector<rational> soft_w;
svector<std::pair<expr*, unsigned>> soft;
if (objectives.size() == 1) {
auto const& obj = objectives[0];
if (obj.m_type != O_MAXSMT)
@ -1565,10 +1572,15 @@ namespace opt {
rational w = obj.m_weights[j];
if (!w.is_unsigned())
throw default_exception("only single objective weighted MaxSAT wcnf output is supported");
soft_f.push_back(obj.m_terms[j]);
soft_w.push_back(w);
}
}
NOT_IMPLEMENTED_YET();
return std::string("");
std::ostringstream strm;
m_sat_solver = mk_inc_sat_solver(m, m_params);
m_sat_solver->assert_expr(m_hard_constraints);
inc_sat_display(strm, *m_sat_solver.get(), soft_f.size(), soft_f.c_ptr(), soft_w.c_ptr());
return strm.str();
}
std::string context::to_string(bool is_internal, expr_ref_vector const& hard, vector<objective> const& objectives) const {