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Almost cleaned up version.

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This commit is contained in:
Andreas Froehlich 2014-04-22 00:32:45 +01:00 • committed by Christoph M. Wintersteiger
parent 42702c8d8a
commit 8a30a2caa9
6 changed files with 315 additions and 2270 deletions
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262
src/tactic/sls/sls_evaluator.h
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@ -81,11 +81,7 @@ public:
case OP_AND: {
m_mpz_manager.set(result, m_one);
for (unsigned i = 0; i < n_args; i++)
#if _DIRTY_UP_
if (m_mpz_manager.neq(m_tracker.get_value(args[i]), result) && !m_tracker.is_top_expr(args[i])) {
#else
if (m_mpz_manager.neq(m_tracker.get_value(args[i]), result)) {
#endif
m_mpz_manager.set(result, m_zero);
break;
}
@ -93,11 +89,7 @@ public:
}
case OP_OR: {
for (unsigned i = 0; i < n_args; i++)
#if _DIRTY_UP_
if (m_mpz_manager.neq(m_tracker.get_value(args[i]), result) || m_tracker.is_top_expr(args[i])) {
#else
if (m_mpz_manager.neq(m_tracker.get_value(args[i]), result)) {
#endif
m_mpz_manager.set(result, m_one);
break;
}
@ -105,16 +97,9 @@ public:
}
case OP_NOT: {
SASSERT(n_args == 1);
#if _DIRTY_UP_
if (m_tracker.is_top_expr(args[0]))
m_mpz_manager.set(result, m_zero);
else
m_mpz_manager.set(result, (m_mpz_manager.is_zero(m_tracker.get_value(args[0]))) ? m_one : m_zero);
#else
const mpz & child = m_tracker.get_value(args[0]);
SASSERT(m_mpz_manager.is_one(child) || m_mpz_manager.is_zero(child));
m_mpz_manager.set(result, (m_mpz_manager.is_zero(child)) ? m_one : m_zero);
#endif
break;
}
case OP_EQ: {
@ -545,9 +530,7 @@ public:
expr_fast_mark1 visited;
mpz new_value;
#if _EARLY_PRUNE_ || _CACHE_TOP_SCORE_
double new_score;
#endif
SASSERT(cur_depth < m_traversal_stack.size());
while (cur_depth != static_cast<unsigned>(-1)) {
@ -559,8 +542,7 @@ public:
(*this)(to_app(cur), new_value);
m_tracker.set_value(cur, new_value);
#if _REAL_RS_ || _REAL_PBFS_
//if (!m_tracker.has_uplinks(cur))
#if _REAL_RS_
if (m_tracker.is_top_expr(cur))
{
if (m_mpz_manager.eq(new_value,m_one))
@ -570,25 +552,12 @@ public:
}
#endif
new_score = m_tracker.score(cur);
if (m_tracker.is_top_expr(cur))
m_tracker.adapt_top_sum(cur, new_score, m_tracker.get_score(cur));
m_tracker.set_score(cur, new_score);
#if _EARLY_PRUNE_
new_score = m_tracker.score(cur);
#if _CACHE_TOP_SCORE_
//if (!m_tracker.has_uplinks(cur))
if (m_tracker.is_top_expr(cur))
m_tracker.adapt_top_sum(cur, new_score, m_tracker.get_score(cur));
#endif
m_tracker.set_score(cur, new_score);
m_tracker.set_score_prune(cur, new_score);
#else
#if _CACHE_TOP_SCORE_
new_score = m_tracker.score(cur);
//if (!m_tracker.has_uplinks(cur))
if (m_tracker.is_top_expr(cur))
m_tracker.adapt_top_sum(cur, new_score, m_tracker.get_score(cur));
m_tracker.set_score(cur, new_score);
#else
m_tracker.set_score(cur, m_tracker.score(cur));
#endif
#endif
if (m_tracker.has_uplinks(cur)) {
@ -617,9 +586,7 @@ public:
expr_fast_mark1 visited;
mpz new_value;
#if _EARLY_PRUNE_ || _CACHE_TOP_SCORE_
double new_score;
#endif
SASSERT(cur_depth < m_traversal_stack.size());
while (cur_depth != static_cast<unsigned>(-1)) {
@ -630,25 +597,12 @@ public:
(*this)(to_app(cur), new_value);
m_tracker.set_value(cur, new_value);
new_score = m_tracker.score(cur);
if (m_tracker.is_top_expr(cur))
m_tracker.adapt_top_sum(cur, new_score, m_tracker.get_score(cur));
m_tracker.set_score(cur, new_score);
#if _EARLY_PRUNE_
new_score = m_tracker.score(cur);
#if _CACHE_TOP_SCORE_
//if (!m_tracker.has_uplinks(cur))
if (m_tracker.is_top_expr(cur))
m_tracker.adapt_top_sum(cur, new_score, m_tracker.get_score(cur));
#endif
m_tracker.set_score(cur, new_score);
m_tracker.set_score_prune(cur, new_score);
#else
#if _CACHE_TOP_SCORE_
new_score = m_tracker.score(cur);
//if (!m_tracker.has_uplinks(cur))
if (m_tracker.is_top_expr(cur))
m_tracker.adapt_top_sum(cur, new_score, m_tracker.get_score(cur));
m_tracker.set_score(cur, new_score);
#else
m_tracker.set_score(cur, m_tracker.score(cur));
#endif
#endif
if (m_tracker.has_uplinks(cur)) {
ptr_vector<expr> & ups = m_tracker.get_uplinks(cur);
@ -684,11 +638,7 @@ public:
m_traversal_stack[cur_depth].push_back(ep);
if (cur_depth > max_depth) max_depth = cur_depth;
}
#if _REAL_RS_ || _REAL_PBFS_ || _PAWS_
run_serious_update(max_depth);
#else
run_update(max_depth);
#endif
}
void update(func_decl * fd, const mpz & new_value) {
@ -713,7 +663,6 @@ public:
run_serious_update(cur_depth);
}
#if _EARLY_PRUNE_
unsigned run_update_bool_prune(unsigned cur_depth) {
expr_fast_mark1 visited;
@ -727,19 +676,15 @@ public:
expr * cur = cur_depth_exprs[i];
new_score = m_tracker.score(cur);
#if _CACHE_TOP_SCORE_
//if (!m_tracker.has_uplinks(cur))
if (m_tracker.is_top_expr(cur))
m_tracker.adapt_top_sum(cur, new_score, m_tracker.get_score(cur));
#endif
prune_score = m_tracker.get_score_prune(cur);
m_tracker.set_score(cur, new_score);
if ((new_score > prune_score) && (m_tracker.has_pos_occ(cur)))
//if ((new_score >= prune_score) && (m_tracker.has_pos_occ(cur)))
pot_benefits = 1;
if ((new_score <= prune_score) && (m_tracker.has_neg_occ(cur)))
//if ((new_score < prune_score) && (m_tracker.has_neg_occ(cur)))
pot_benefits = 1;
if (m_tracker.has_uplinks(cur)) {
@ -754,9 +699,6 @@ public:
}
}
}
else
{
}
}
cur_depth_exprs.reset();
@ -770,15 +712,11 @@ public:
for (unsigned i = 0; i < cur_size; i++) {
expr * cur = cur_depth_exprs[i];
#if _CACHE_TOP_SCORE_
new_score = m_tracker.score(cur);
//if (!m_tracker.has_uplinks(cur))
if (m_tracker.is_top_expr(cur))
m_tracker.adapt_top_sum(cur, new_score, m_tracker.get_score(cur));
m_tracker.set_score(cur, new_score);
#else
m_tracker.set_score(cur, m_tracker.score(cur));
#endif
if (m_tracker.has_uplinks(cur)) {
ptr_vector<expr> & ups = m_tracker.get_uplinks(cur);
for (unsigned j = 0; j < ups.size(); j++) {
@ -859,161 +797,18 @@ public:
}
return run_update_bool_prune(cur_depth);
}
#endif
unsigned run_update_bool_prune_new(unsigned cur_depth) {
expr_fast_mark1 visited;
double prune_score, new_score;
unsigned pot_benefits = 0;
SASSERT(cur_depth < m_traversal_stack_bool.size());
ptr_vector<expr> & cur_depth_exprs = m_traversal_stack_bool[cur_depth];
for (unsigned i = 0; i < cur_depth_exprs.size(); i++) {
expr * cur = cur_depth_exprs[i];
new_score = m_tracker.score(cur);
//if (!m_tracker.has_uplinks(cur))
if (m_tracker.is_top_expr(cur))
m_tracker.adapt_top_sum(cur, new_score, m_tracker.get_score(cur));
prune_score = m_tracker.get_score_prune(cur);
m_tracker.set_score(cur, new_score);
if ((new_score >= prune_score) && (m_tracker.has_pos_occ(cur)))
pot_benefits = 1;
if ((new_score < prune_score) && (m_tracker.has_neg_occ(cur)))
pot_benefits = 1;
if (m_tracker.has_uplinks(cur)) {
ptr_vector<expr> & ups = m_tracker.get_uplinks(cur);
for (unsigned j = 0; j < ups.size(); j++) {
expr * next = ups[j];
unsigned next_d = m_tracker.get_distance(next);
SASSERT(next_d < cur_depth);
if (!visited.is_marked(next)) {
m_traversal_stack_bool[next_d].push_back(next);
visited.mark(next);
}
}
}
else
{
}
}
cur_depth_exprs.reset();
cur_depth--;
while (cur_depth != static_cast<unsigned>(-1)) {
ptr_vector<expr> & cur_depth_exprs = m_traversal_stack_bool[cur_depth];
if (pot_benefits)
{
unsigned cur_size = cur_depth_exprs.size();
for (unsigned i = 0; i < cur_size; i++) {
expr * cur = cur_depth_exprs[i];
new_score = m_tracker.score(cur);
//if (!m_tracker.has_uplinks(cur))
if (m_tracker.is_top_expr(cur))
m_tracker.adapt_top_sum(cur, new_score, m_tracker.get_score(cur));
m_tracker.set_score(cur, new_score);
if (m_tracker.has_uplinks(cur)) {
ptr_vector<expr> & ups = m_tracker.get_uplinks(cur);
for (unsigned j = 0; j < ups.size(); j++) {
expr * next = ups[j];
unsigned next_d = m_tracker.get_distance(next);
SASSERT(next_d < cur_depth);
if (!visited.is_marked(next)) {
m_traversal_stack_bool[next_d].push_back(next);
visited.mark(next);
}
}
}
}
}
cur_depth_exprs.reset();
cur_depth--;
}
return pot_benefits;
}
unsigned update_prune_new(func_decl * fd, const mpz & new_value) {
m_tracker.set_value(fd, new_value);
expr * ep = m_tracker.get_entry_point(fd);
unsigned cur_depth = m_tracker.get_distance(ep);
if (m_traversal_stack_bool.size() <= cur_depth)
m_traversal_stack_bool.resize(cur_depth+1);
if (m_traversal_stack.size() <= cur_depth)
m_traversal_stack.resize(cur_depth+1);
if (m_manager.is_bool(ep))
m_traversal_stack_bool[cur_depth].push_back(ep);
else
{
m_traversal_stack[cur_depth].push_back(ep);
run_update_prune(cur_depth);
}
return run_update_bool_prune_new(cur_depth);
}
void randomize_local(ptr_vector<func_decl> & unsat_constants) {
// Randomize _all_ candidates:
//// bool did_something = false;
//for (unsigned i = 0; i < unsat_constants.size(); i++) {
// func_decl * fd = unsat_constants[i];
// mpz temp = m_tracker.get_random(fd->get_range());
// // if (m_mpz_manager.neq(temp, m_tracker.get_value(fd))) {
// // did_something = true;
// // }
// update(fd, temp);
// m_mpz_manager.del(temp);
//}
// Randomize _one_ candidate:
unsigned r = m_tracker.get_random_uint(16) % unsat_constants.size();
func_decl * fd = unsat_constants[r];
#if _PERC_CHANGE_
sort * srt = fd->get_range();
mpz temp;
if (m_manager.is_bool(srt))
m_mpz_manager.set(temp, (m_mpz_manager.is_zero(m_tracker.get_value(fd))) ? m_one : m_zero);
else
{
mpz temp2, mask;
unsigned bv_sz = m_bv_util.get_bv_size(srt);
m_mpz_manager.set(temp, m_tracker.get_value(fd));
for (unsigned bit = 0; bit < bv_sz; bit++)
if (m_tracker.get_random_uint(16) % 100 < _PERC_CHANGE_)
{
m_mpz_manager.set(mask, m_powers(bit));
m_mpz_manager.bitwise_xor(temp, mask, temp2);
m_mpz_manager.set(temp, temp2);
}
m_mpz_manager.del(mask);
m_mpz_manager.del(temp2);
}
#else
mpz temp = m_tracker.get_random(fd->get_range());
#endif
#if _REAL_RS_ || _REAL_PBFS_ || _PAWS_
serious_update(fd, temp);
#else
update(fd, temp);
#endif
m_mpz_manager.del(temp);
TRACE("sls", /*tout << "Randomization candidates: ";
for (unsigned i = 0; i < unsat_constants.size(); i++)
tout << unsat_constants[i]->get_name() << ", ";
tout << std::endl;*/
tout << "Randomization candidate: " << unsat_constants[r]->get_name() << std::endl;
TRACE("sls", tout << "Randomization candidate: " << unsat_constants[r]->get_name() << std::endl;
tout << "Locally randomized model: " << std::endl;
m_tracker.show_model(tout); );
@ -1023,36 +818,9 @@ public:
randomize_local(m_tracker.get_constants(e));
}
void randomize_local(goal_ref const & g, unsigned int flip) {
randomize_local(m_tracker.get_unsat_constants(g, flip));
void randomize_local(ptr_vector<expr> const & as) {
randomize_local(m_tracker.get_unsat_constants(as));
}
void randomize_local_n(goal_ref const & g, ptr_vector<func_decl> & unsat_constants) {
unsigned r = m_tracker.get_random_uint(16) % unsat_constants.size();
func_decl * fd = unsat_constants[r];
sort * srt = fd->get_range();
unsigned bv_sz = m_manager.is_bool(srt) ? 1 : m_bv_util.get_bv_size(srt);
mpz max_val = m_tracker.get_random(srt);
update(fd, max_val);
double max_score = m_tracker.get_top_sum() / g->size();
mpz temp_val;
double temp_score;
for (unsigned i = 1; i < 2; i++)
//for (unsigned i = 1; i < bv_sz; i++)
{
m_mpz_manager.set(temp_val, m_tracker.get_random(srt));
update(fd, temp_val);
temp_score = m_tracker.get_top_sum() / g->size();
if (temp_score > max_score)
{
m_mpz_manager.set(max_val, temp_val);
max_score = temp_score;
}
}
update(fd, max_val);
m_mpz_manager.del(temp_val);
m_mpz_manager.del(max_val);
}
};
#endif