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emptinessta.hh
1 // -*- coding: utf-8 -*-
2 // Copyright (C) 2008, 2012, 2013, 2014, 2016 Laboratoire de Recherche
3 // et Dévelopment de l'Epita (LRDE).
4 // Copyright (C) 2003, 2004, 2005, 2006 Laboratoire d'Informatique de
5 // Paris 6 (LIP6), département Systèmes Répartis Coopératifs (SRC),
6 // Université Pierre et Marie Curie.
7 //
8 // This file is part of Spot, a model checking library.
9 //
10 // Spot is free software; you can redistribute it and/or modify it
11 // under the terms of the GNU General Public License as published by
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13 // (at your option) any later version.
14 //
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17 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
18 // License for more details.
19 //
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21 // along with this program. If not, see <http://www.gnu.org/licenses/>.
22 
23 #pragma once
24 
25 #include <spot/ta/taproduct.hh>
26 #include <spot/misc/optionmap.hh>
27 #include <spot/twaalgos/emptiness_stats.hh>
28 #include <stack>
29 #include <queue>
30 
31 namespace spot
32 {
33 
34  namespace
35  {
36  typedef std::pair<const spot::state*,
37  ta_succ_iterator_product*> pair_state_iter;
38  }
39 
52 
65 
87  class SPOT_API ta_check : public ec_statistics
88  {
89  typedef state_map<int> hash_type;
90  public:
91  ta_check(const const_ta_product_ptr& a, option_map o = option_map());
92  virtual
93  ~ta_check();
94 
112  bool
113  check(bool disable_second_pass = false,
114  bool disable_heuristic_for_livelock_detection = false);
115 
120  bool
121  livelock_detection(const const_ta_product_ptr& t);
122 
124  std::ostream&
125  print_stats(std::ostream& os) const;
126 
127  protected:
128  void
129  clear(hash_type& h, std::stack<pair_state_iter> todo, std::queue<
130  const spot::state*> init_set);
131 
132  void
133  clear(hash_type& h, std::stack<pair_state_iter> todo,
134  spot::ta_succ_iterator* init_states_it);
135 
138  bool
139  heuristic_livelock_detection(const state * stuttering_succ,
140  hash_type& h, int h_livelock_root, std::set<const state*,
141  state_ptr_less_than> liveset_curr);
142 
143  const_ta_product_ptr a_;
145 
146  // Force the second pass
147  bool is_full_2_pass_;
148 
149  // scc: a stack of strongly connected components (SCC)
150  scc_stack_ta scc;
151 
152  // sscc: a stack of strongly stuttering-connected components (SSCC)
153  scc_stack_ta sscc;
154 
155  };
156 
158 
161 }
Definition: graph.hh:33
Emptiness-check statistics.
Definition: emptiness_stats.hh:121
Manage a map of options.
Definition: optionmap.hh:37
Definition: ta.hh:208
Abstract class for states.
Definition: twa.hh:50
const_ta_product_ptr a_
The automaton.
Definition: emptinessta.hh:143
An implementation of the emptiness-check algorithm for a product between a TA and a Kripke structure...
Definition: emptinessta.hh:87
option_map o_
The options.
Definition: emptinessta.hh:144
Iterate over the successors of a state.
Definition: ta.hh:197
Strict Weak Ordering for state*.
Definition: twa.hh:127

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