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ltlsynt: deduce --outs from --ins or vice-versa

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* bin/ltlsynt.cc: Implement it.
* NEWS, doc/org/ltlsynt.org: Document it.
* tests/core/ltlsynt.test: Test it.
This commit is contained in:
Alexandre Duret-Lutz 2021-10-02 18:16:39 +02:00
parent 60225fd139
commit 1b69ed96f9
4 changed files with 77 additions and 26 deletions
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40
bin/ltlsynt.cc
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@ -30,6 +30,7 @@
#include <spot/misc/escape.hh>
#include <spot/misc/timer.hh>
#include <spot/tl/formula.hh>
#include <spot/tl/apcollect.hh>
#include <spot/twa/twagraph.hh>
#include <spot/twaalgos/aiger.hh>
#include <spot/twaalgos/game.hh>
@ -511,7 +512,35 @@ namespace
int process_formula(spot::formula f, const char*, int) override
{
int res = solve_formula(f, input_aps_, output_aps_);
auto unknown_aps = [](spot::formula f,
const std::vector<std::string>& known)
{
std::vector<std::string> unknown;
std::set<spot::formula> seen;
f.traverse([&](const spot::formula& s)
{
if (s.is(spot::op::ap))
{
if (!seen.insert(s).second)
return false;
const std::string& a = s.ap_name();
if (std::find(known.begin(), known.end(), a) == known.end())
unknown.push_back(a);
}
return false;
});
return unknown;
};
// Decide which atomic propositions are input or output.
int res;
if (input_aps_.empty() && !output_aps_.empty())
res = solve_formula(f, unknown_aps(f, output_aps_), output_aps_);
else if (output_aps_.empty() && !input_aps_.empty())
res = solve_formula(f, input_aps_, unknown_aps(f, input_aps_));
else
res = solve_formula(f, input_aps_, output_aps_);
if (opt_csv)
print_csv(f);
return res;
@ -611,14 +640,11 @@ main(int argc, char **argv)
check_no_formula();
// Check if inputs and outputs are distinct
// Inputs can be empty, outputs not
if (not all_input_aps.empty())
{
for (const auto& ai : all_input_aps)
if (std::count(all_output_aps.begin(), all_output_aps.end(), ai))
for (const auto& ai : all_input_aps)
if (std::find(all_output_aps.begin(), all_output_aps.end(), ai)
!= all_output_aps.end())
throw std::runtime_error("ltlsynt(): " + ai +
" appears in the input AND output APs.");
}
ltl_processor processor(all_input_aps, all_output_aps);
if (int res = processor.run(); res == 0 || res == 1)