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