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This commit is contained in:
Christoph M. Wintersteiger 2016-03-02 18:25:56 +00:00
parent bddf416064
commit 68416bf6bc

View file

@ -50,14 +50,14 @@ class inc_sat_solver : public solver {
expr_ref_vector m_core;
atom2bool_var m_map;
model_ref m_model;
model_converter_ref m_mc;
bit_blaster_rewriter m_bb_rewriter;
model_converter_ref m_mc;
bit_blaster_rewriter m_bb_rewriter;
tactic_ref m_preprocess;
unsigned m_num_scopes;
sat::literal_vector m_asms;
goal_ref_buffer m_subgoals;
proof_converter_ref m_pc;
model_converter_ref m_mc2;
proof_converter_ref m_pc;
model_converter_ref m_mc2;
expr_dependency_ref m_dep_core;
svector<double> m_weights;
std::string m_unknown;
@ -66,15 +66,15 @@ class inc_sat_solver : public solver {
typedef obj_map<expr, sat::literal> dep2asm_t;
public:
inc_sat_solver(ast_manager& m, params_ref const& p):
m(m), m_solver(p, m.limit(), 0),
m_params(p), m_optimize_model(false),
m_fmls(m),
m(m), m_solver(p, m.limit(), 0),
m_params(p), m_optimize_model(false),
m_fmls(m),
m_asmsf(m),
m_fmls_head(0),
m_core(m),
m_core(m),
m_map(m),
m_bb_rewriter(m, p),
m_num_scopes(0),
m_num_scopes(0),
m_dep_core(m),
m_unknown("no reason given") {
m_params.set_bool("elim_vars", false);
@ -88,17 +88,17 @@ public:
simp2_p.set_bool("flat", true); // required by som
simp2_p.set_bool("hoist_mul", false); // required by som
simp2_p.set_bool("elim_and", true);
m_preprocess =
m_preprocess =
and_then(mk_card2bv_tactic(m, m_params),
using_params(mk_simplify_tactic(m), simp2_p),
mk_max_bv_sharing_tactic(m),
mk_bit_blaster_tactic(m, &m_bb_rewriter),
mk_bit_blaster_tactic(m, &m_bb_rewriter),
//mk_aig_tactic(),
using_params(mk_simplify_tactic(m), simp2_p));
using_params(mk_simplify_tactic(m), simp2_p));
}
virtual ~inc_sat_solver() {}
virtual solver* translate(ast_manager& dst_m, params_ref const& p) {
ast_translation tr(m, dst_m);
if (m_num_scopes > 0) {
@ -119,7 +119,7 @@ public:
virtual void set_progress_callback(progress_callback * callback) {}
virtual lbool check_sat(unsigned num_assumptions, expr * const * assumptions) {
virtual lbool check_sat(unsigned num_assumptions, expr * const * assumptions) {
return check_sat(num_assumptions, assumptions, 0, 0);
}
@ -138,8 +138,8 @@ public:
}
m_solver.display_wcnf(out, m_asms.size(), m_asms.c_ptr(), nweights.c_ptr());
}
lbool check_sat(unsigned sz, expr * const * assumptions, double const* weights, double max_weight) {
lbool check_sat(unsigned sz, expr * const * assumptions, double const* weights, double max_weight) {
m_weights.reset();
if (weights != 0) {
m_weights.append(sz, weights);
@ -182,13 +182,13 @@ public:
m_map.push();
}
virtual void pop(unsigned n) {
if (n < m_num_scopes) { // allow inc_sat_solver to
if (n < m_num_scopes) { // allow inc_sat_solver to
n = m_num_scopes; // take over for another solver.
}
m_bb_rewriter.pop(n);
m_map.pop(n);
SASSERT(n >= m_num_scopes);
m_solver.user_pop(n);
m_solver.user_pop(n);
m_num_scopes -= n;
while (n > 0) {
m_fmls_head = m_fmls_head_lim.back();
@ -227,7 +227,7 @@ public:
m_params.set_bool("elim_vars", false);
m_solver.updt_params(m_params);
m_optimize_model = m_params.get_bool("optimize_model", false);
}
}
virtual void collect_statistics(statistics & st) const {
m_preprocess->collect_statistics(st);
m_solver.collect_statistics(st);
@ -246,7 +246,7 @@ public:
UNREACHABLE();
return 0;
}
virtual std::string reason_unknown() const {
return m_unknown;
}
@ -279,13 +279,13 @@ private:
m_preprocess->reset();
SASSERT(g->models_enabled());
SASSERT(!g->proofs_enabled());
TRACE("sat", g->display(tout););
try {
TRACE("sat", g->display(tout););
try {
(*m_preprocess)(g, m_subgoals, m_mc2, m_pc, m_dep_core);
}
catch (tactic_exception & ex) {
IF_VERBOSE(0, verbose_stream() << "exception in tactic " << ex.msg() << "\n";);
return l_undef;
return l_undef;
}
if (m_subgoals.size() != 1) {
IF_VERBOSE(0, verbose_stream() << "size of subgoals is not 1, it is: " << m_subgoals.size() << "\n";);
@ -309,7 +309,7 @@ private:
lbool res = internalize_goal(g, dep2asm);
if (res == l_true) {
extract_assumptions(sz, asms, dep2asm);
}
}
return res;
}
@ -360,7 +360,7 @@ private:
tout << core[i] << " ";
}
tout << "\n";
);
);
m_core.reset();
for (unsigned i = 0; i < core.size(); ++i) {
@ -402,8 +402,8 @@ private:
}
sat::bool_var v = it->m_value;
switch (sat::value_at(v, ll_m)) {
case l_true:
md->register_decl(to_app(n)->get_decl(), m.mk_true());
case l_true:
md->register_decl(to_app(n)->get_decl(), m.mk_true());
break;
case l_false:
md->register_decl(to_app(n)->get_decl(), m.mk_false());
@ -416,7 +416,7 @@ private:
if (m_mc || !m_bb_rewriter.const2bits().empty()) {
model_converter_ref mc = m_mc;
if (!m_bb_rewriter.const2bits().empty()) {
mc = concat(mc.get(), mk_bit_blaster_model_converter(m, m_bb_rewriter.const2bits()));
mc = concat(mc.get(), mk_bit_blaster_model_converter(m, m_bb_rewriter.const2bits()));
}
(*mc)(m_model);
}
@ -425,9 +425,9 @@ private:
DEBUG_CODE(
for (unsigned i = 0; i < m_fmls.size(); ++i) {
expr_ref tmp(m);
VERIFY(m_model->eval(m_fmls[i].get(), tmp, true));
VERIFY(m_model->eval(m_fmls[i].get(), tmp, true));
CTRACE("sat", !m.is_true(tmp),
tout << "Evaluation failed: " << mk_pp(m_fmls[i].get(), m)
tout << "Evaluation failed: " << mk_pp(m_fmls[i].get(), m)
<< " to " << tmp << "\n";
model_smt2_pp(tout, m, *(m_model.get()), 0););
SASSERT(m.is_true(tmp));