+++ /dev/null
-/* Copyright (c) 2007-2023. The SimGrid Team.
- * All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#ifndef SIMGRID_MC_LIVENESS_CHECKER_HPP
-#define SIMGRID_MC_LIVENESS_CHECKER_HPP
-
-#include "src/mc/api/State.hpp"
-#include "src/mc/explo/Exploration.hpp"
-#include "xbt/automaton.hpp"
-
-#include <list>
-#include <memory>
-#include <vector>
-
-namespace simgrid::mc {
-
-class XBT_PRIVATE Pair {
-public:
- int num = 0;
- bool search_cycle = false;
- std::shared_ptr<State> app_state_ = nullptr; /* State of the application (including system state) */
- xbt_automaton_state_t prop_state_ = nullptr; /* State of the property automaton */
- std::shared_ptr<const std::vector<int>> atomic_propositions;
- int requests = 0;
- int depth = 0;
- bool exploration_started = false;
-
- explicit Pair(unsigned long expanded_pairs);
-
- Pair(Pair const&) = delete;
- Pair& operator=(Pair const&) = delete;
-};
-
-class XBT_PRIVATE VisitedPair {
-public:
- int num;
- int other_num = 0; /* Dot output for */
- std::shared_ptr<State> app_state_ = nullptr; /* State of the application (including system state) */
- xbt_automaton_state_t prop_state_; /* State of the property automaton */
- std::shared_ptr<const std::vector<int>> atomic_propositions;
- std::size_t heap_bytes_used = 0;
- int actor_count_;
-
- VisitedPair(int pair_num, xbt_automaton_state_t prop_state,
- std::shared_ptr<const std::vector<int>> atomic_propositions, std::shared_ptr<State> app_state,
- RemoteApp& remote_app);
-};
-
-class XBT_PRIVATE LivenessChecker : public Exploration {
-public:
- explicit LivenessChecker(const std::vector<char*>& args);
- ~LivenessChecker() override;
-
- void run() override;
- RecordTrace get_record_trace() override;
- void log_state() override;
-
-private:
- std::shared_ptr<const std::vector<int>> get_proposition_values() const;
- std::shared_ptr<VisitedPair> insert_acceptance_pair(Pair* pair);
- int insert_visited_pair(std::shared_ptr<VisitedPair> visited_pair, Pair* pair);
- void show_acceptance_cycle(std::size_t depth);
- void replay();
- void remove_acceptance_pair(int pair_num);
- void purge_visited_pairs();
- void backtrack();
- std::shared_ptr<Pair> create_pair(const Pair* pair, xbt_automaton_state_t state,
- std::shared_ptr<const std::vector<int>> propositions);
-
- // A stack of (application_state, automaton_state) pairs for DFS exploration:
- std::list<std::shared_ptr<Pair>> exploration_stack_;
- std::list<std::shared_ptr<VisitedPair>> acceptance_pairs_;
- std::list<std::shared_ptr<VisitedPair>> visited_pairs_;
- unsigned long visited_pairs_count_ = 0;
- unsigned long expanded_pairs_count_ = 0;
- int previous_pair_ = 0;
- std::string previous_request_;
-
- /* The property automaton must be a static because it's sometimes used before the explorer is even created.
- *
- * This can happen if some symbols are created during the application's initialization process, before the first
- * decision point for the model-checker. Since the first snapshot is taken at the first decision point and since the
- * explorer is created after the first snapshot, this may result in some symbols being registered even before the
- * model-checker notices that this is a LivenessChecker to create.
- *
- * This situation is unfortunate, but I guess that it's the best I can achieve given the state of our initialization
- * code.
- */
- static xbt_automaton_t property_automaton_;
- bool evaluate_label(const xbt_automaton_exp_label* l, std::vector<int> const& values);
-
-public:
- void automaton_load(const char* file) const;
- std::vector<int> automaton_propositional_symbol_evaluate() const;
- std::vector<xbt_automaton_state_t> get_automaton_state() const;
- int compare_automaton_exp_label(const xbt_automaton_exp_label* l) const;
- void set_property_automaton(xbt_automaton_state_t const& automaton_state) const;
- xbt_automaton_exp_label_t get_automaton_transition_label(xbt_dynar_t const& dynar, int index) const;
- xbt_automaton_state_t get_automaton_transition_dst(xbt_dynar_t const& dynar, int index) const;
- static void automaton_register_symbol(RemoteProcessMemory const& remote_process, const char* name,
- RemotePtr<int> addr);
-};
-
-} // namespace simgrid::mc
-
-#endif
