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Merge branch 'bvsls' of https://git01.codeplex.com/z3 into bvsls

Browse source 
Conflicts:
	src/tactic/sls/sls_engine.cpp
	src/tactic/sls/sls_engine.h
	src/tactic/sls/sls_evaluator.h
	src/tactic/sls/sls_tracker.h
This commit is contained in:
Andreas Froehlich 2014-04-21 17:05:19 +01:00
commit 5ab65d52a6
53 changed files with 2315 additions and 4466 deletions
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91
src/tactic/sls/sls_evaluator.h
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@ -559,8 +559,7 @@ 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))
@ -573,7 +572,6 @@ public:
#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
@ -582,7 +580,6 @@ public:
#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);
@ -633,7 +630,6 @@ public:
#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
@ -642,7 +638,6 @@ public:
#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);
@ -684,7 +679,7 @@ public:
m_traversal_stack[cur_depth].push_back(ep);
if (cur_depth > max_depth) max_depth = cur_depth;
}
#if _REAL_RS_ || _REAL_PBFS_ || _PAWS_
#if _REAL_RS_ || _PAWS_
run_serious_update(max_depth);
#else
run_update(max_depth);
@ -728,7 +723,6 @@ public:
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
@ -736,10 +730,8 @@ public:
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)) {
@ -772,7 +764,6 @@ public:
#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);
@ -874,7 +865,6 @@ public:
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);
@ -914,7 +904,6 @@ public:
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);
@ -960,60 +949,19 @@ public:
}
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_
#if _REAL_RS_ || _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 +971,9 @@ 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