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Fix symex-backtrace when the stack is empty #3528

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Merged
merged 1 commit into from
Dec 9, 2018
Merged

Fix symex-backtrace when the stack is empty #3528

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6 changes: 6 additions & 0 deletions src/goto-symex/goto_symex_state.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -765,6 +765,12 @@ void goto_symex_statet::get_l1_name(exprt &expr) const
/// \param out: stream to write to
void goto_symex_statet::print_backtrace(std::ostream &out) const
{
if(threads[source.thread_nr].call_stack.empty())
{
out << "No stack!\n";
return;
}

out << source.pc->function << " " << source.pc->location_number << "\n";

for(auto stackit = threads[source.thread_nr].call_stack.rbegin(),
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