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investigating relevancy

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-11-05 17:16:30 +01:00
parent a78f899225
commit 23029daf5e
12 changed files with 394 additions and 417 deletions
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21
src/smt/smt_consequences.cpp
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@ -27,12 +27,12 @@ Revision History:
namespace smt {
expr_ref context::antecedent2fml(index_set const& vars) {
expr_ref_vector premises(m_manager);
expr_ref_vector premises(m);
index_set::iterator it = vars.begin(), end = vars.end();
for (; it != end; ++it) {
expr* e = bool_var2expr(*it);
e = m_assumption2orig.find(e);
premises.push_back(get_assignment(*it) != l_false ? e : m_manager.mk_not(e));
premises.push_back(get_assignment(*it) != l_false ? e : m.mk_not(e));
}
return mk_and(premises);
}
@ -47,7 +47,6 @@ namespace smt {
// - e is a data-type recognizer of a variable that is to be fixed.
//
void context::extract_fixed_consequences(literal lit, index_set const& assumptions, expr_ref_vector& conseq) {
ast_manager& m = m_manager;
datatype_util dt(m);
expr* e1, *e2;
expr_ref fml(m);
@ -103,7 +102,6 @@ namespace smt {
}
void context::justify(literal lit, index_set& s) {
ast_manager& m = m_manager;
(void)m;
b_justification js = get_justification(lit.var());
switch (js.get_kind()) {
@ -163,7 +161,6 @@ namespace smt {
//
unsigned context::delete_unfixed(expr_ref_vector& unfixed) {
ast_manager& m = m_manager;
ptr_vector<expr> to_delete;
obj_map<expr,expr*>::iterator it = m_var2val.begin(), end = m_var2val.end();
for (; it != end; ++it) {
@ -216,7 +213,6 @@ namespace smt {
//
unsigned context::extract_fixed_eqs(expr_ref_vector& conseq) {
TRACE("context", tout << "extract fixed consequences\n";);
ast_manager& m = m_manager;
ptr_vector<expr> to_delete;
expr_ref fml(m), eq(m);
obj_map<expr,expr*>::iterator it = m_var2val.begin(), end = m_var2val.end();
@ -253,7 +249,6 @@ namespace smt {
}
literal context::mk_diseq(expr* e, expr* val) {
ast_manager& m = m_manager;
if (m.is_bool(e) && b_internalized(e)) {
return literal(get_bool_var(e), m.is_true(val));
}
@ -276,7 +271,6 @@ namespace smt {
m_antecedents.reset();
m_antecedents.insert(true_literal.var(), index_set());
pop_to_base_lvl();
ast_manager& m = m_manager;
expr_ref_vector vars(m), assumptions(m);
m_var2val.reset();
m_var2orig.reset();
@ -459,7 +453,7 @@ namespace smt {
}
m_antecedents.insert(lit.var(), s);
if (_nasms.contains(lit.index())) {
expr_ref_vector core(m_manager);
expr_ref_vector core(m);
index_set::iterator it = s.begin(), end = s.end();
for (; it != end; ++it) {
core.push_back(var2expr[*it]);
@ -528,7 +522,7 @@ namespace smt {
unsigned num_restarts = 0;
while (true) {
if (m_manager.canceled()) {
if (m.canceled()) {
is_sat = l_undef;
break;
}
@ -581,10 +575,10 @@ namespace smt {
lbool context::find_mutexes(expr_ref_vector const& vars, vector<expr_ref_vector>& mutexes) {
unsigned_vector ps;
max_cliques<neg_literal> mc;
expr_ref lit(m_manager);
expr_ref lit(m);
for (unsigned i = 0; i < vars.size(); ++i) {
expr* n = vars[i];
bool neg = m_manager.is_not(n, n);
bool neg = m.is_not(n, n);
if (b_internalized(n)) {
ps.push_back(literal(get_bool_var(n), neg).index());
}
@ -602,7 +596,7 @@ namespace smt {
vector<unsigned_vector> _mutexes;
mc.cliques(ps, _mutexes);
for (unsigned i = 0; i < _mutexes.size(); ++i) {
expr_ref_vector lits(m_manager);
expr_ref_vector lits(m);
for (unsigned j = 0; j < _mutexes[i].size(); ++j) {
literal2expr(to_literal(_mutexes[i][j]), lit);
lits.push_back(lit);
@ -618,7 +612,6 @@ namespace smt {
//
void context::validate_consequences(expr_ref_vector const& assumptions, expr_ref_vector const& vars,
expr_ref_vector const& conseq, expr_ref_vector const& unfixed) {
ast_manager& m = m_manager;
expr_ref tmp(m);
SASSERT(!inconsistent());
for (unsigned i = 0; i < conseq.size(); ++i) {