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scoping th solver to avoid memory leak during cancellation exposed by #3431

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-03-22 14:14:45 -07:00
parent d1f6470805
commit 70a1786061
5 changed files with 10 additions and 6 deletions
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1
src/ast/ast.cpp
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@ -1824,6 +1824,7 @@ ast * ast_manager::register_node_core(ast * n) {
} }
n->m_id = is_decl(n) ? m_decl_id_gen.mk() : m_expr_id_gen.mk(); n->m_id = is_decl(n) ? m_decl_id_gen.mk() : m_expr_id_gen.mk();
TRACE("ast", tout << "Object " << n->m_id << " was created.\n";); TRACE("ast", tout << "Object " << n->m_id << " was created.\n";);
TRACE("mk_var_bug", tout << "mk_ast: " << n->m_id << "\n";); TRACE("mk_var_bug", tout << "mk_ast: " << n->m_id << "\n";);
// increment reference counters // increment reference counters

2
src/ast/rewriter/rewriter_def.h
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@ -275,7 +275,7 @@ void rewriter_tpl<Config>::process_app(app * t, frame & fr) {
unsigned new_num_args = result_stack().size() - fr.m_spos; unsigned new_num_args = result_stack().size() - fr.m_spos;
expr * const * new_args = result_stack().c_ptr() + fr.m_spos; expr * const * new_args = result_stack().c_ptr() + fr.m_spos;
app * new_t; app_ref new_t(m());
if (ProofGen) { if (ProofGen) {
elim_reflex_prs(fr.m_spos); elim_reflex_prs(fr.m_spos);
unsigned num_prs = result_pr_stack().size() - fr.m_spos; unsigned num_prs = result_pr_stack().size() - fr.m_spos;

6
src/qe/qe.cpp
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@ -2152,12 +2152,12 @@ namespace qe {
expr_ref fml0(fml, m); expr_ref fml0(fml, m);
quant_elim_plugin* th; scoped_ptr<quant_elim_plugin> th;
pop_context(th); pop_context(th);
th->check(num_vars, vars, m_assumption, fml, get_first, free_vars, defs); th->check(num_vars, vars, m_assumption, fml, get_first, free_vars, defs);
push_context(th); push_context(th.detach());
TRACE("qe", TRACE("qe",
for (unsigned i = 0; i < num_vars; ++i) { for (unsigned i = 0; i < num_vars; ++i) {
tout << mk_ismt2_pp(vars[i], m) << " "; tout << mk_ismt2_pp(vars[i], m) << " ";
@ -2175,7 +2175,7 @@ namespace qe {
return l_undef; return l_undef;
} }
void pop_context(quant_elim_plugin*& th) { void pop_context(scoped_ptr<quant_elim_plugin>& th) {
if (m_plugins.empty()) { if (m_plugins.empty()) {
th = alloc(quant_elim_plugin, m, *this, m_fparams); th = alloc(quant_elim_plugin, m, *this, m_fparams);
th->add_plugin(mk_bool_plugin(*th)); th->add_plugin(mk_bool_plugin(*th));

5
src/smt/smt_conflict_resolution.cpp
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@ -51,6 +51,9 @@ namespace smt {
{ {
} }
conflict_resolution::~conflict_resolution() {
}
/** /**
\brief Mark all enodes in a 'proof' tree branch starting at n \brief Mark all enodes in a 'proof' tree branch starting at n
n -> ... -> root n -> ... -> root
@ -1044,7 +1047,7 @@ namespace smt {
TRACE("proof_gen_bug", tout << "js2pr_cached: #" << js << "\n";); TRACE("proof_gen_bug", tout << "js2pr_cached: #" << js << "\n";);
return pr; return pr;
} }
SASSERT(js != 0); SASSERT(js != nullptr);
TRACE("proof_gen_bug", tout << js << "\n";); TRACE("proof_gen_bug", tout << js << "\n";);
m_todo_pr.push_back(tp_elem(js)); m_todo_pr.push_back(tp_elem(js));
return nullptr; return nullptr;

2
src/smt/smt_conflict_resolution.h
View file

@ -208,7 +208,7 @@ namespace smt {
vector<watch_list> & watches vector<watch_list> & watches
); );
virtual ~conflict_resolution() {} virtual ~conflict_resolution();
virtual bool resolve(b_justification conflict, literal not_l); virtual bool resolve(b_justification conflict, literal not_l);