2 * @brief Core model checker.
12 #include "hashtable.h"
14 #include "modeltypes.h"
15 #include "stl-model.h"
21 /* Forward declaration */
33 typedef SnapList<ModelAction *> action_list_t;
35 /** @brief Model checker execution stats */
36 struct execution_stats {
37 int num_total; /**< @brief Total number of executions */
38 int num_infeasible; /**< @brief Number of infeasible executions */
39 int num_buggy_executions; /** @brief Number of buggy executions */
40 int num_complete; /**< @brief Number of feasible, non-buggy, complete executions */
41 int num_redundant; /**< @brief Number of redundant, aborted executions */
44 /** @brief The central structure for model-checking */
47 ModelChecker(struct model_params params);
52 /** Restart the model checker, intended for pluggins. */
55 /** Exit the model checker, intended for pluggins. */
56 void exit_model_checker();
58 /** Check the exit_flag. */
59 bool get_exit_flag() const { return exit_flag; }
61 /** @returns the context for the main model-checking system thread */
62 ucontext_t * get_system_context() { return &system_context; }
64 ModelExecution * get_execution() const { return execution; }
66 int get_execution_number() const { return execution_number; }
68 Thread * get_thread(thread_id_t tid) const;
69 Thread * get_thread(const ModelAction *act) const;
71 Thread * get_current_thread() const;
73 void switch_from_master(Thread *thread);
74 uint64_t switch_to_master(ModelAction *act);
76 bool assert_bug(const char *msg, ...);
77 void assert_user_bug(const char *msg);
79 const model_params params;
80 void add_trace_analysis(TraceAnalysis *a) { trace_analyses.push_back(a); }
81 void set_inspect_plugin(TraceAnalysis *a) { inspect_plugin=a; }
83 std::map<pthread_t, ModelAction*> pthread_map;
85 /** Flag indicates whether to restart the model checker. */
87 /** Flag indicates whether to exit the model checker. */
90 /** The scheduler to use: tracks the running/ready Threads */
91 Scheduler * const scheduler;
92 NodeStack * const node_stack;
93 ModelExecution *execution;
97 unsigned int get_num_threads() const;
99 void execute_sleep_set();
101 bool next_execution();
102 bool should_terminate_execution();
104 Thread * get_next_thread();
105 void reset_to_initial_state();
108 ModelAction *diverge;
109 ModelAction *earliest_diverge;
111 ucontext_t system_context;
113 ModelVector<TraceAnalysis *> trace_analyses;
115 /** @bref Implement restart. */
117 /** @bref Plugin that can inspect new actions. */
118 TraceAnalysis *inspect_plugin;
119 /** @brief The cumulative execution stats */
120 struct execution_stats stats;
122 void run_trace_analyses();
123 void print_bugs() const;
124 void print_execution(bool printbugs) const;
125 void print_stats() const;
127 friend void user_main_wrapper();
130 extern ModelChecker *model;
132 #endif /* __MODEL_H__ */