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add clause proof module, small improvements to bapa

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-05-30 15:49:19 -07:00
parent 4d30639fd7
commit 48fc3d752e
36 changed files with 722 additions and 250 deletions
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12
src/smt/smt_context_stat.cpp
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@ -33,9 +33,7 @@ namespace smt {
}
static void acc_num_occs(clause * cls, unsigned_vector & lit2num_occs) {
unsigned num_lits = cls->get_num_literals();
for (unsigned i = 0; i < num_lits; i++) {
literal l = cls->get_literal(i);
for (literal l : *cls) {
lit2num_occs[l.index()]++;
}
}
@ -80,9 +78,7 @@ namespace smt {
}
static void acc_var_num_occs(clause * cls, unsigned_vector & var2num_occs) {
unsigned num_lits = cls->get_num_literals();
for (unsigned i = 0; i < num_lits; i++) {
literal l = cls->get_literal(i);
for (literal l : *cls) {
var2num_occs[l.var()]++;
}
}
@ -116,9 +112,9 @@ namespace smt {
static void acc_var_num_min_occs(clause * cls, unsigned_vector & var2num_min_occs) {
unsigned num_lits = cls->get_num_literals();
bool_var min_var = cls->get_literal(0).var();
bool_var min_var = (*cls)[0].var();
for (unsigned i = 1; i < num_lits; i++) {
bool_var v = cls->get_literal(i).var();
bool_var v = (*cls)[i].var();
if (v < min_var)
min_var = v;
}