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move qhead to attribute on the state instead of the simplifier,

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- add sat.smt option to enable the new incremental core (it is not ready for mainstream consumption as cloning and other features are not implemented and it hasn't been tested in any detail yet).
- move "name" into attribute on simplifier so it can be reused for diagnostics by the seq-simplifier.
This commit is contained in:
Nikolaj Bjorner 2022-11-29 16:36:02 +07:00
parent ac023935a3
commit dd1ca8f6bd
37 changed files with 132 additions and 85 deletions
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2
src/sat/sat_solver/sat_smt_preprocess.cpp
View file

@ -44,7 +44,7 @@ void init_preprocess(ast_manager& m, params_ref const& p, seq_simplifier& s, dep
simp2_p.set_bool("flat_and_or", false);
sat_params sp(p);
if (sp.euf()) {
if (sp.euf() || sp.smt()) {
s.add_simplifier(alloc(rewriter_simplifier, m, p, st));
s.add_simplifier(alloc(propagate_values, m, p, st));
//

30
src/sat/sat_solver/sat_smt_solver.cpp
View file

@ -130,7 +130,7 @@ class sat_smt_solver : public solver {
trail_stack& m_trail;
dependency2assumptions m_dep;
goal2sat m_goal2sat;
expr_ref_vector m_assumptions, m_core, m_ors, m_aux_fmls;
expr_ref_vector m_assumptions, m_core, m_ors, m_aux_fmls, m_internalized_fmls;
atom2bool_var m_map;
generic_model_converter_ref m_mc;
unsigned m_mc_size = 0;
@ -140,9 +140,8 @@ class sat_smt_solver : public solver {
// access formulas after they have been pre-processed and handled by the sat solver.
// this allows to access the internal state of the SAT solver and carry on partial results.
bool m_internalized_converted = false; // have internalized formulas been converted back
expr_ref_vector m_internalized_fmls; // formulas in internalized format
bool is_internalized() const { return m_preprocess.qhead() == m_fmls.size(); }
bool is_internalized() const { return m_preprocess_state.qhead() == m_fmls.size(); }
public:
sat_smt_solver(ast_manager& m, params_ref const& p):
@ -152,16 +151,12 @@ public:
m_trail(m_preprocess_state.m_trail),
m_dep(m, m_trail),
m_solver(p, m.limit()),
m_assumptions(m),
m_core(m),
m_ors(m),
m_aux_fmls(m),
m_assumptions(m), m_core(m), m_ors(m), m_aux_fmls(m), m_internalized_fmls(m),
m_map(m),
m_internalized_fmls(m) {
m_mc(alloc(generic_model_converter, m, "sat-smt-solver")) {
updt_params(p);
init_preprocess();
m_solver.set_incremental(true);
m_mc = alloc(generic_model_converter, m, "sat-smt-solver");
}
solver* translate(ast_manager& dst_m, params_ref const& p) override {
@ -214,7 +209,7 @@ public:
expr_ref_vector assumptions(m);
for (unsigned i = 0; i < sz; ++i)
assumptions.push_back(ensure_literal(_assumptions[i]));
TRACE("sat", tout << _assumptions << "\n";);
TRACE("sat", tout << assumptions << "\n";);
lbool r = internalize_formulas();
if (r != l_true)
return r;
@ -267,8 +262,7 @@ public:
}
void pop(unsigned n) override {
if (n > m_trail.get_num_scopes()) // allow inc_sat_solver to
n = m_trail.get_num_scopes(); // take over for another solver.
n = std::min(n, m_trail.get_num_scopes()); // allow sat_smt_solver to take over for another solver.
m_preprocess.pop(n);
m_preprocess_state.pop(n);
@ -357,7 +351,7 @@ public:
m_solver.updt_params(m_params);
m_solver.set_incremental(true);
m_preprocess.updt_params(m_params);
if (sp.euf())
if (sp.smt())
ensure_euf();
}
@ -537,7 +531,7 @@ public:
void convert_internalized() {
m_solver.pop_to_base_level();
if (!is_internalized() && m_preprocess.qhead() > 0)
if (!is_internalized() && m_preprocess_state.qhead() > 0)
internalize_formulas();
if (!is_internalized() || m_internalized_converted)
return;
@ -623,15 +617,19 @@ private:
if (is_internalized())
return l_true;
unsigned qhead = m_preprocess.qhead();
unsigned qhead = m_preprocess_state.qhead();
m_trail.push(restore_vector(m_assumptions));
m_trail.push(restore_vector(m_fmls));
m_trail.push(value_trail(m_mc_size));
TRACE("sat", tout << "qhead " << qhead << "\n");
m_internalized_converted = false;
m_preprocess_state.replay(qhead);
m_preprocess.reduce();
if (!m.inc())
return l_undef;
m_preprocess_state.advance_qhead();
m_preprocess_state.append(*m_mc);
m_solver.pop_to_base_level();
m_aux_fmls.reset();
@ -695,7 +693,7 @@ private:
mdl = nullptr;
if (!m_solver.model_is_current())
return;
if (m_fmls.size() > m_preprocess.qhead())
if (m_fmls.size() > m_preprocess_state.qhead())
return;
TRACE("sat", m_solver.display_model(tout););
CTRACE("sat", m_sat_mc, m_sat_mc->display(tout););