mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-08-20 18:20:22 +00:00
Code Activity

fix consequence tracking for negated assumptions

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-07-30 10:49:06 -07:00
parent 7d545d902d
commit d32019f4c9
3 changed files with 8 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

11
src/smt/smt_consequences.cpp
View file

@ -31,7 +31,7 @@ namespace smt {
return mk_and(premises);
}
void context::extract_fixed_consequences(unsigned start, obj_map<expr, expr*>& vars, obj_hashtable<expr> const& assumptions, expr_ref_vector& conseq) {
void context::extract_fixed_consequences(unsigned start, obj_map<expr, expr*>& vars, uint_set const& assumptions, expr_ref_vector& conseq) {
ast_manager& m = m_manager;
pop_to_search_lvl();
literal_vector const& lits = assigned_literals();
@ -43,8 +43,8 @@ namespace smt {
if (lit == true_literal) continue;
expr* e = bool_var2expr(lit.var());
uint_set s;
if (assumptions.contains(e)) {
s.insert(get_literal(e).var());
if (assumptions.contains(lit.var())) {
s.insert(lit.var());
}
else {
b_justification js = get_justification(lit.var());
@ -78,6 +78,7 @@ namespace smt {
}
}
m_antecedents.insert(lit.var(), s);
TRACE("context", display_literal_verbose(tout, lit); tout << " " << s << "\n";);
bool found = false;
if (vars.contains(e)) {
found = true;
@ -110,9 +111,9 @@ namespace smt {
return is_sat;
}
obj_map<expr, expr*> var2val;
obj_hashtable<expr> _assumptions;
uint_set _assumptions;
for (unsigned i = 0; i < assumptions.size(); ++i) {
_assumptions.insert(assumptions[i]);
_assumptions.insert(get_literal(assumptions[i]).var());
}
model_ref mdl;
get_model(mdl);