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Fix caching bug in mbc

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This commit is contained in:
Arie Gurfinkel 2018-06-06 09:40:59 -07:00
parent 54add824e9
commit f74ca2f0c0
1 changed files with 13 additions and 5 deletions
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18
src/muz/spacer/spacer_mbc.cpp
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@ -17,16 +17,17 @@ class mbc_rewriter_cfg : public default_rewriter_cfg {
ast_manager &m;
const mbc::partition_map &m_pmap;
obj_map<expr,expr*> &m_subs;
model &m_mdl;
model_evaluator m_mev;
vector<expr_ref_vector> &m_parts;
unsigned m_current_part;
obj_map<expr,expr*> m_subs;
public:
mbc_rewriter_cfg(ast_manager &m, const mbc::partition_map &pmap,
obj_map<expr,expr*> &subs,
model &mdl, vector<expr_ref_vector> &parts) :
m(m), m_pmap(pmap), m_mdl(mdl), m_mev(m_mdl),
m(m), m_pmap(pmap), m_subs(subs), m_mdl(mdl), m_mev(m_mdl),
m_parts(parts), m_current_part(UINT_MAX)
{m_mev.set_model_completion(true);}
@ -56,7 +57,7 @@ public:
// eval in the model
m_mev.eval(s, val, true);
// store decided equality (also keeps ref to s and val
// store decided equality (also keeps ref to s and val)
m_parts[part].push_back(m.mk_eq(s, val));
// store substitution
m_subs.insert(s, val);
@ -64,6 +65,8 @@ public:
return true;
}
void reset() {reset_partition();};
void reset_partition() {m_current_part = UINT_MAX;}
unsigned partition() {return m_current_part;}
bool found_partition() {return m_current_part < UINT_MAX;}
@ -75,13 +78,14 @@ void mbc::operator()(const partition_map &pmap, expr_ref_vector &lits,
model &mdl, vector<expr_ref_vector> &res) {
scoped_no_proof _sp (m);
mbc_rewriter_cfg cfg(m, pmap, mdl, res);
obj_map<expr,expr*> subs;
mbc_rewriter_cfg cfg(m, pmap, subs, mdl, res);
rewriter_tpl<mbc_rewriter_cfg> rw(m, false, cfg);
th_rewriter thrw(m);
for (auto *lit : lits) {
expr_ref new_lit(m);
cfg.reset_partition();
rw.reset();
rw(lit, new_lit);
thrw(new_lit);
if (cfg.found_partition()) {
@ -89,6 +93,10 @@ void mbc::operator()(const partition_map &pmap, expr_ref_vector &lits,
res[cfg.partition()].push_back(new_lit);
}
}
TRACE("mbc", tout << "Input: " << lits << "\n"
<< "Output: \n";
for (auto &vec : res) tout << vec << "\n==================\n";);
}
}