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stutter: detect stutter-invariance at the state level

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* spot/twaalgos/stutter.cc, spot/twaalgos/stutter.hh: Implement
stutter-invariance detection at the state level.
* python/spot/impl.i: Instantiate std::vector<bool>
* tests/python/stutter-inv-states.ipynb: New file.
* tests/Makefile.am, doc/org/tut.org: Add it.
This commit is contained in:
Alexandre Duret-Lutz 2017-10-10 21:11:54 +02:00
parent b4963a7a6c
commit 9b18729721
7 changed files with 1932 additions and 1 deletions
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42
spot/twaalgos/stutter.hh
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@ -1,5 +1,5 @@
// -*- coding: utf-8 -*-
// Copyright (C) 2014, 2015, 2016 Laboratoire de Recherche
// Copyright (C) 2014-2017 Laboratoire de Recherche
// et Développement de l'Epita (LRDE).
//
// This file is part of Spot, a model checking library.
@ -73,4 +73,44 @@ namespace spot
check_stutter_invariance(const twa_graph_ptr& aut,
formula f = nullptr,
bool do_not_determinize = false);
///@{
/// \brief Determinate the states that are stutter-invariant in \a pos.
///
/// The algorithm needs to compute the complement of \a pos. You can
/// avoid that costly operation by either supplying the complement
/// automaton, or supplying a formula for the (positive) automaton.
SPOT_API std::vector<bool>
stutter_invariant_states(const const_twa_graph_ptr& pos,
const_twa_graph_ptr neg = nullptr,
bool local = false);
SPOT_API std::vector<bool>
stutter_invariant_states(const const_twa_graph_ptr& pos, formula f_pos,
bool local = false);
///@}
///@{
/// \brief Highlight the states of \a pos that are stutter-invariant.
///
/// The algorithm needs to compute the complement of \a pos. You can
/// avoid that costly operation by either supplying the complement
/// automaton, or supplying a formula for the (positive) automaton.
///
/// The \a color argument is an index in a predefined set of colors.
///
/// This function simply works by calling
/// stutter_invariant_states(), and using the resulting vector to
/// setup the "highlight-states" property of the automaton.
SPOT_API void
highlight_stutter_invariant_states(const twa_graph_ptr& pos,
formula f_pos, unsigned color = 0,
bool local = false);
SPOT_API void
highlight_stutter_invariant_states(const twa_graph_ptr& pos,
const_twa_graph_ptr neg = nullptr,
unsigned color = 0,
bool local = false);
///@}
}