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experimenting with inc_sat

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-05-14 09:27:47 -07:00
parent 6821d61ac4
commit 6d6abb4dde
1 changed files with 13 additions and 6 deletions
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19
src/opt/weighted_maxsat.cpp
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@ -51,7 +51,9 @@ namespace opt {
expr_ref_vector m_fmls;
atom2bool_var m_map;
model_ref m_model;
model_converter_ref m_mc;
tactic_ref m_preprocess;
statistics m_stats;
public:
inc_sat_solver(ast_manager& m, params_ref const& p):
m(m), m_solver(p,0), m_params(p),
@ -68,9 +70,10 @@ namespace opt {
virtual lbool check_sat(unsigned num_assumptions, expr * const * assumptions) {
SASSERT(num_assumptions == 0);
m_solver.pop(m_solver.scope_lvl());
goal_ref_buffer result;
model_converter_ref mc; // TODO make model convertion work between checks
proof_converter_ref pc;
model_converter_ref mc;
expr_dependency_ref core(m);
if (!m_fmls.empty()) {
@ -84,8 +87,10 @@ namespace opt {
}
catch (tactic_exception &) {
IF_VERBOSE(0, verbose_stream() << "exception in tactic\n";);
m_preprocess->collect_statistics(m_stats);
return l_undef;
}
m_mc = concat(m_mc.get(), mc.get());
// TODO: check that result is a singleton.
if (result.size() != 1) {
IF_VERBOSE(0, verbose_stream() << "size of result is not 1, it is: " << result.size() << "\n";);
@ -114,13 +119,13 @@ namespace opt {
break;
}
}
TRACE("sat_tactic", model_v2_pp(tout, *md););
m_model = md;
if (mc) {
(*mc)(m_model);
if (m_mc) {
(*m_mc)(m_model);
}
// IF_VERBOSE(0, model_smt2_pp(verbose_stream(), m, *(m_model.get()), 0););
}
m_solver.pop(m_solver.scope_lvl());
m_solver.collect_statistics(m_stats);
return r;
}
virtual void set_cancel(bool f) {
@ -157,7 +162,9 @@ namespace opt {
m_params = p;
}
virtual void collect_statistics(statistics & st) const {}
virtual void collect_statistics(statistics & st) const {
st.copy(m_stats);
}
virtual void get_unsat_core(ptr_vector<expr> & r) {
UNREACHABLE();
}