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fixes to hybrid mode

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This commit is contained in:
Nikolaj Bjorner 2025-01-12 16:59:27 -08:00
parent 9770c00592
commit 943d881340
3 changed files with 23 additions and 11 deletions
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27
src/ast/sls/sls_arith_base.cpp
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@ -2479,6 +2479,20 @@ namespace sls {
if (get_bool_value(a) != ctx.is_true(v))
ctx.flip(v);
}
#if 0
for (auto idx : ctx.unsat()) {
auto const& cl = ctx.get_clause(idx);
verbose_stream() << "clause " << cl << "\n";
for (auto lit : cl) {
auto a = ctx.atom(lit.var());
if (a)
verbose_stream() << lit << " " << mk_bounded_pp(a, m) << " " << get_bool_value(a) << " " << ctx.is_true(lit) << "\n";
else
verbose_stream() << lit << " " << ctx.is_true(lit) << "\n";
}
}
#endif
}
template<typename num_t>
@ -2938,24 +2952,22 @@ namespace sls {
rescore();
m_config.max_moves = m_stats.m_moves + m_config.max_moves_base;
TRACE("arith", tout << "search " << m_stats.m_moves << " " << m_config.max_moves << "\n";);
IF_VERBOSE(1, verbose_stream() << "lookahead-search moves:" << m_stats.m_moves << " max-moves:" << m_config.max_moves << "\n");
IF_VERBOSE(3, verbose_stream() << "lookahead-search moves:" << m_stats.m_moves << " max-moves:" << m_config.max_moves << "\n");
TRACE("arith", display(tout));
bool loop_again = true;
while (m.inc() && m_stats.m_moves < m_config.max_moves) {
loop_again = false;
m_stats.m_moves++;
check_restart();
auto t = get_candidate_unsat();
if (!t)
if (!t)
break;
auto& vars = get_fixable_exprs(t);
if (vars.empty())
return;
break;
if (ctx.rand(2047) < m_config.wp && apply_move(t, vars, arith_move_type::random_inc_dec))
continue;
@ -2965,9 +2977,8 @@ namespace sls {
if (apply_move(t, vars, arith_move_type::random_update))
recalibrate_weights();
loop_again = true;
}
if (loop_again)
if (m_stats.m_moves >= m_config.max_moves)
m_config.max_moves_base += 100;
finalize_bool_assignment();
}