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https://github.com/Z3Prover/z3
synced 2025-04-08 10:25:18 +00:00
bypass simplifier if (m_is_clausal) {
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
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9d75babcda
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301f441801
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@ -149,7 +149,7 @@ extern "C" {
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to_param_ref(p).validate(r);
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to_solver_ref(s)->updt_params(to_param_ref(p));
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}
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to_solver(s)->m_params = to_param_ref(p);
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to_solver(s)->m_params.append(to_param_ref(p));
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Z3_CATCH;
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}
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@ -81,8 +81,8 @@ public:
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simp2_p.set_bool("hoist_mul", false); // required by som
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m_preprocess =
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and_then(mk_card2bv_tactic(m, m_params),
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mk_simplify_tactic(m),
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mk_propagate_values_tactic(m),
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//mk_simplify_tactic(m),
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//mk_propagate_values_tactic(m),
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using_params(mk_simplify_tactic(m), simp2_p),
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mk_max_bv_sharing_tactic(m),
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mk_bit_blaster_tactic(m),
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@ -88,6 +88,7 @@ private:
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rational m_max_upper;
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bool m_found_feasible_optimum;
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bool m_hill_climb; // prefer large weight soft clauses for cores
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unsigned m_last_index; // last index used during hill-climbing
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bool m_add_upper_bound_block; // restrict upper bound with constraint
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unsigned m_max_num_cores; // max number of cores per round.
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unsigned m_max_core_size; // max core size per round.
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@ -110,6 +111,7 @@ public:
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m_st(st),
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m_found_feasible_optimum(false),
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m_hill_climb(true),
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m_last_index(0),
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m_add_upper_bound_block(false),
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m_max_num_cores(UINT_MAX),
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m_max_core_size(3),
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@ -352,16 +354,21 @@ public:
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/**
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Give preference to cores that have large minmal values.
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*/
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sort_assumptions(asms);
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unsigned index = 0;
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unsigned last_index = 0;
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sort_assumptions(asms);
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m_last_index = std::min(m_last_index, asms.size()-1);
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m_last_index = 0;
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unsigned index = m_last_index>0?m_last_index-1:0;
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m_last_index = 0;
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bool first = index > 0;
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SASSERT(index < asms.size() || asms.empty());
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while (index < asms.size() && is_sat == l_true) {
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while (asms.size() > 20*(index - last_index) && index < asms.size()) {
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while (!first && asms.size() > 20*(index - m_last_index) && index < asms.size()) {
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index = next_index(asms, index);
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//break;
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}
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IF_VERBOSE(3, verbose_stream() << "weight: " << get_weight(asms[0].get()) << " " << get_weight(asms[index-1].get()) << "\n";);
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last_index = index;
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first = false;
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IF_VERBOSE(3, verbose_stream() << "weight: " << get_weight(asms[0].get()) << " " << get_weight(asms[index-1].get()) << " num soft: " << index << "\n";);
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m_last_index = index;
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is_sat = s().check_sat(index, asms.c_ptr());
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}
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}
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@ -880,6 +887,7 @@ public:
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}
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m_max_upper = m_upper;
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m_found_feasible_optimum = false;
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m_last_index = 0;
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add_upper_bound_block();
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}
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@ -123,6 +123,7 @@ namespace opt {
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m_objective_refs(m),
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m_enable_sat(false),
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m_enable_sls(false),
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m_is_clausal(false),
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m_pp_neat(false)
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{
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params_ref p;
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@ -553,6 +554,10 @@ namespace opt {
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}
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void context::simplify_fmls(expr_ref_vector& fmls) {
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if (m_is_clausal) {
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return;
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}
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goal_ref g(alloc(goal, m, true, false));
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for (unsigned i = 0; i < fmls.size(); ++i) {
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g->assert_expr(fmls[i].get());
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@ -126,6 +126,7 @@ namespace opt {
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tactic_ref m_simplify;
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bool m_enable_sat;
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bool m_enable_sls;
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bool m_is_clausal;
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bool m_pp_neat;
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symbol m_maxsat_engine;
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symbol m_logic;
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@ -155,6 +156,7 @@ namespace opt {
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virtual void display_assignment(std::ostream& out);
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virtual bool is_pareto() { return m_pareto.get() != 0; }
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virtual void set_logic(symbol const& s) { m_logic = s; }
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void set_clausal(bool f) { m_is_clausal = f; }
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void display(std::ostream& out);
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static void collect_param_descrs(param_descrs & r);
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@ -161,17 +161,9 @@ namespace opt {
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void opt_solver::maximize_objectives(expr_ref_vector& blockers) {
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expr_ref blocker(m);
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vector<inf_eps> values;
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for (unsigned i = 0; i < m_objective_vars.size(); ++i) {
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values.push_back(current_objective_value(i));
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}
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for (unsigned i = 0; i < m_objective_vars.size(); ++i) {
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maximize_objective(i, blocker);
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blockers.push_back(blocker);
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if (values[i] > m_objective_values[i]) {
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std::cout << "local optimization produced a worse result\n";
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exit(0);
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}
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}
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}
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@ -90,15 +90,17 @@ namespace sat {
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break;
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}
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unsigned num_literals = core.size() + mus.size();
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if (num_literals <= 2) {
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// IF_VERBOSE(0, verbose_stream() << "num literals: " << core << " " << mus << "\n";);
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break;
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}
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literal lit = core.back();
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core.pop_back();
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lbool is_sat;
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{
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scoped_append _sa(mus, core);
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if (true || core_miss < 2) {
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mus.push_back(~lit); // TBD: measure
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}
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mus.push_back(~lit);
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is_sat = s.check(mus.size(), mus.c_ptr());
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TRACE("sat", tout << "mus: " << mus << "\n";);
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}
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@ -146,7 +148,7 @@ namespace sat {
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}
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TRACE("sat", tout << "new core: " << mus << "\n";);
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set_core();
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IF_VERBOSE(2, verbose_stream() << "(sat.mus.new " << core << ")\n";);
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IF_VERBOSE(2, verbose_stream() << "(sat.mus.new " << s.m_core << ")\n";);
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return l_true;
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}
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@ -118,7 +118,9 @@ class wcnf {
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public:
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wcnf(opt::context& opt, stream_buffer& in): opt(opt), m(opt.get_manager()), in(in) {}
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wcnf(opt::context& opt, stream_buffer& in): opt(opt), m(opt.get_manager()), in(in) {
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opt.set_clausal(true);
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}
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void parse() {
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int num_vars = 0, num_clauses = 0, max_weight = 0;
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@ -135,6 +135,7 @@ class propagate_values_tactic : public tactic {
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TRACE("shallow_context_simplifier_bug", tout << mk_ismt2_pp(curr, m()) << "\n---->\n" << mk_ismt2_pp(new_curr, m()) << "\n";);
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push_result(new_curr, new_pr);
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if (new_curr != curr)
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m_modified = true;
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}
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@ -160,6 +161,9 @@ class propagate_values_tactic : public tactic {
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if (m_goal->inconsistent())
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goto end;
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if (m_max_rounds == 0)
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goto end;
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m_subst = alloc(expr_substitution, m(), g->unsat_core_enabled(), g->proofs_enabled());
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m_r.set_substitution(m_subst.get());
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m_occs(*m_goal);
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@ -230,6 +230,7 @@ public:
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}
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}
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void set(param_descrs const & d, symbol const & param_name, char const * value, symbol const & mod_name) {
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param_kind k = d.get_kind(param_name);
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params_ref & ps = get_params(mod_name);
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