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sccinfo: implement PROCESS_UNREACHABLE_STATES

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This is actually used by next patch.

* spot/twaalgos/sccinfo.cc, spot/twaalgos/sccinfo.hh: Here.
* tests/python/sccinfo.py: Add a small test case.
* NEWS: Mention it.
This commit is contained in:
Alexandre Duret-Lutz 2023-10-02 11:54:34 +02:00
parent 70812046d2
commit c016f561fa
4 changed files with 65 additions and 10 deletions
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24
spot/twaalgos/sccinfo.cc
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@ -1,5 +1,5 @@
// -*- coding: utf-8 -*-
// Copyright (C) 2014-2022 Laboratoire de Recherche et Développement
// Copyright (C) 2014-2023 Laboratoire de Recherche et Développement
// de l'Epita (LRDE).
//
// This file is part of Spot, a model checking library.
@ -206,13 +206,21 @@ namespace spot
}
};
// Setup depth-first search from the initial state. But we may
// have a conjunction of initial state in alternating automata.
if (initial_state_ == -1U)
initial_state_ = aut->get_init_state_number();
for (unsigned init: aut->univ_dests(initial_state_))
push_init(init);
if (!!(options & scc_info_options::PROCESS_UNREACHABLE_STATES))
{
unsigned e = aut->num_states();
for (unsigned i = 0; i < e; ++i)
push_init(i);
}
else
{
// Setup depth-first search from the initial state. But we may
// have a conjunction of initial state in alternating automata.
if (initial_state_ == -1U)
initial_state_ = aut->get_init_state_number();
for (unsigned init: aut->univ_dests(initial_state_))
push_init(init);
}
while (!init_states.empty())
{
unsigned init = init_states.front();