// -*- coding: utf-8 -*-
// Copyright (C) 2010, 2012, 2013, 2014, 2015 Laboratoire de Recherche et
// Développement de l'Epita (LRDE).
//
// This file is part of Spot, a model checking library.
//
// Spot is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// Spot is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
#pragma once
#include "tgba/tgba.hh"
#include "ta/taexplicit.hh"
#include "ta/tgtaexplicit.hh"
namespace spot
{
/// \ingroup tgba_ta
/// \brief Build a spot::ta_explicit* (TA) from an LTL formula.
///
/// This is based on the following paper.
/** \verbatim
@InProceedings{ geldenhuys.06.spin,
author = {Jaco Geldenhuys and Henri Hansen},
title = {Larger Automata and Less Work for {LTL} Model Checking},
booktitle = {Proceedings of the 13th International SPIN Workshop
(SPIN'06)},
year = {2006},
pages = {53--70},
series = {Lecture Notes in Computer Science},
volume = {3925},
publisher = {Springer}
}
\endverbatim */
///
/// \param tgba_to_convert The TGBA automaton to convert into a TA automaton
///
/// \param atomic_propositions_set The set of atomic propositions used in the
/// input TGBA \a tgba_to_convert
///
/// \param degeneralized When false, the returned automaton is a generalized
/// form of TA, called GTA (Generalized Testing Automaton).
/// Like TGBA, GTA use Generalized Büchi acceptance
/// conditions intead of Buchi-accepting states: there are several acceptance
/// sets (of transitions), and a path is accepted if it traverses
/// at least one transition of each set infinitely often or if it contains a
/// livelock-accepting cycle (like a TA). The spot emptiness check algorithm
/// for TA (spot::ta_check::check) can also be used to check GTA.
///
/// \param artificial_initial_state_mode When set, the algorithm will build
/// a TA automaton with an unique initial state. This
/// artificial initial state have one transition to each real initial state,
/// and this transition is labeled by the corresponding initial condition.
/// (see spot::ta::get_artificial_initial_state())
///
/// \param single_pass_emptiness_check When set, the product between the
/// returned automaton and a kripke structure requires only the fist pass of
/// the emptiness check algorithm (see the parameter \c disable_second_pass
/// of the method spot::ta_check::check)
///
///
/// \param artificial_livelock_state_mode When set, the returned TA automaton
/// is a STA (Single-pass Testing Automata): a STA automaton is a TA
/// where: for every livelock-accepting state s, if s is not also a
/// Buchi-accepting state, then s has no successors. A STA product requires
/// only one-pass emptiness check algorithm (see spot::ta_check::check)
///
/// \param no_livelock when set, this disable the replacement of
/// stuttering components by livelock states. Use this flag to
/// demonstrate an intermediate step of the construction.
///
/// \return A spot::ta_explicit that recognizes the same language as the
/// TGBA \a tgba_to_convert.
SPOT_API ta_explicit_ptr
tgba_to_ta(const const_tgba_ptr& tgba_to_convert, bdd atomic_propositions_set,
bool degeneralized = true,
bool artificial_initial_state_mode = true,
bool single_pass_emptiness_check = false,
bool artificial_livelock_state_mode = false,
bool no_livelock = false);
/// \ingroup tgba_ta
/// \brief Build a spot::tgta_explicit* (TGTA) from an LTL formula.
///
/// \param tgba_to_convert The TGBA automaton to convert into a TGTA automaton
/// \param atomic_propositions_set The set of atomic propositions used in the
/// input TGBA \a tgba_to_convert
///
/// \return A spot::tgta_explicit (spot::tgta) that recognizes the same
/// language as the TGBA \a tgba_to_convert.
SPOT_API tgta_explicit_ptr
tgba_to_tgta(const const_tgba_ptr& tgba_to_convert,
bdd atomic_propositions_set);
}