#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
+#include <sys/time.h>
#include "../surf/surf_private.h"
#include "../simix/private.h"
"Logging specific to MC (global)");
/* MC global data structures */
-mc_snapshot_t initial_snapshot = NULL;
-xbt_fifo_t mc_stack = NULL;
-mc_stats_t mc_stats = NULL;
-mc_stats_pair_t mc_stats_pair = NULL;
+
mc_state_t mc_current_state = NULL;
char mc_replay_mode = FALSE;
double *mc_time = NULL;
-xbt_fifo_t mc_snapshot_stack = NULL;
+mc_snapshot_t initial_snapshot = NULL;
+
+/* Safety */
+
+xbt_fifo_t mc_stack_safety_stateful = NULL;
+xbt_fifo_t mc_stack_safety_stateless = NULL;
+mc_stats_t mc_stats = NULL;
+
+/* Liveness */
+
+xbt_fifo_t mc_stack_liveness_stateful = NULL;
+mc_stats_pair_t mc_stats_pair = NULL;
+xbt_fifo_t mc_stack_liveness_stateless = NULL;
+
/**
* \brief Initialize the model-checker data structures
*/
-void MC_init(void)
+void MC_init_safety_stateless(void)
{
+
/* Check if MC is already initialized */
if (initial_snapshot)
return;
mc_stats->state_size = 1;
/* Create exploration stack */
- mc_stack = xbt_fifo_new();
+ mc_stack_safety_stateless = xbt_fifo_new();
MC_UNSET_RAW_MEM;
MC_UNSET_RAW_MEM;
}
-void MC_init_with_automaton(xbt_automaton_t a){
+void MC_init_safety_stateful(void){
+
+
+ /* Check if MC is already initialized */
+ if (initial_snapshot)
+ return;
+
+ mc_time = xbt_new0(double, simix_process_maxpid);
+
+ /* Initialize the data structures that must be persistent across every
+ iteration of the model-checker (in RAW memory) */
+ MC_SET_RAW_MEM;
+
+ /* Initialize statistics */
+ mc_stats = xbt_new0(s_mc_stats_t, 1);
+ mc_stats->state_size = 1;
+
+ /* Create exploration stack */
+ mc_stack_safety_stateful = xbt_fifo_new();
+
+ MC_UNSET_RAW_MEM;
+
+ MC_dpor_stateful_init();
+
+
+}
+
+void MC_init_liveness_stateful(xbt_automaton_t a){
XBT_DEBUG("Start init mc");
/* Initialize statistics */
mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
- //mc_stats_pair->pair_size = 1;
+ //mc_stats = xbt_new0(s_mc_stats_t, 1);
XBT_DEBUG("Creating snapshot_stack");
/* Create exploration stack */
- mc_snapshot_stack = xbt_fifo_new();
+ mc_stack_liveness_stateful = xbt_fifo_new();
+
+
+ MC_UNSET_RAW_MEM;
+
+ //MC_ddfs_stateful_init(a);
+ //MC_dpor2_init(a);
+ //MC_dpor3_init(a);
+}
+
+void MC_init_liveness_stateless(xbt_automaton_t a, char *prgm){
+
+ XBT_DEBUG("Start init mc");
+
+ mc_time = xbt_new0(double, simix_process_maxpid);
+
+ /* Initialize the data structures that must be persistent across every
+ iteration of the model-checker (in RAW memory) */
+
+ MC_SET_RAW_MEM;
+
+ /* Initialize statistics */
+ mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
+
+ XBT_DEBUG("Creating stack");
+
+ /* Create exploration stack */
+ mc_stack_liveness_stateless = xbt_fifo_new();
MC_UNSET_RAW_MEM;
- //MC_dfs_init(a);
- MC_stateful_dpor_init(a);
+ MC_ddfs_stateless_init(a, prgm);
+
+
}
void MC_modelcheck(void)
{
- MC_init();
+ MC_init_safety_stateless();
MC_dpor();
MC_exit();
}
-void MC_modelcheck_with_automaton(xbt_automaton_t a){
- MC_init_with_automaton(a);
- MC_exit_with_automaton();
+void MC_modelcheck_stateful(void)
+{
+ MC_init_safety_stateful();
+ MC_dpor_stateful();
+ MC_exit();
+}
+
+void MC_modelcheck_liveness_stateful(xbt_automaton_t a){
+ MC_init_liveness_stateful(a);
+ MC_exit_liveness();
+}
+
+void MC_modelcheck_liveness_stateless(xbt_automaton_t a, char *prgm){
+ MC_init_liveness_stateless(a, prgm);
+ MC_exit_liveness();
}
-void MC_exit_with_automaton(void)
+void MC_exit_liveness(void)
{
MC_print_statistics_pairs(mc_stats_pair);
- xbt_free(mc_time);
+ //xbt_free(mc_time);
MC_memory_exit();
}
+
void MC_exit(void)
{
MC_print_statistics(mc_stats);
MC_memory_exit();
}
+
int MC_random(int min, int max)
{
/*FIXME: return mc_current_state->executed_transition->random.value;*/
XBT_DEBUG("**** End Replay ****");
}
+void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
+{
+ int value;
+ char *req_str;
+ smx_req_t req = NULL, saved_req = NULL;
+ xbt_fifo_item_t item;
+ mc_state_t state;
+ mc_pair_stateless_t pair;
+ int depth = 1;
+
+ XBT_DEBUG("**** Begin Replay ****");
+
+ /* Restore the initial state */
+ MC_restore_snapshot(initial_snapshot);
+ /* At the moment of taking the snapshot the raw heap was set, so restoring
+ * it will set it back again, we have to unset it to continue */
+ MC_UNSET_RAW_MEM;
+
+ if(all_stack){
+
+ item = xbt_fifo_get_last_item(stack);
+
+ while(depth <= xbt_fifo_size(stack)){
+
+ pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
+ state = (mc_state_t) pair->graph_state;
+
+ if(pair->requests > 0){
+
+ saved_req = MC_state_get_executed_request(state, &value);
+ //XBT_DEBUG("SavedReq->call %u", saved_req->call);
+
+ if(saved_req != NULL){
+ /* because we got a copy of the executed request, we have to fetch the
+ real one, pointed by the request field of the issuer process */
+ req = &saved_req->issuer->request;
+ //XBT_DEBUG("Req->call %u", req->call);
+
+ /* Debug information */
+ if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
+ req_str = MC_request_to_string(req, value);
+ XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
+ xbt_free(req_str);
+ }
+
+ }
+
+ SIMIX_request_pre(req, value);
+ MC_wait_for_requests();
+ }
+
+ depth++;
+
+ /* Update statistics */
+ mc_stats_pair->visited_pairs++;
+
+ item = xbt_fifo_get_prev_item(item);
+ }
+
+ }else{
+
+ /* Traverse the stack from the initial state and re-execute the transitions */
+ for (item = xbt_fifo_get_last_item(stack);
+ item != xbt_fifo_get_first_item(stack);
+ item = xbt_fifo_get_prev_item(item)) {
+
+ pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item);
+ state = (mc_state_t) pair->graph_state;
+
+ if(pair->requests > 0){
+
+ saved_req = MC_state_get_executed_request(state, &value);
+ //XBT_DEBUG("SavedReq->call %u", saved_req->call);
+
+ if(saved_req != NULL){
+ /* because we got a copy of the executed request, we have to fetch the
+ real one, pointed by the request field of the issuer process */
+ req = &saved_req->issuer->request;
+ //XBT_DEBUG("Req->call %u", req->call);
+
+ /* Debug information */
+ if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
+ req_str = MC_request_to_string(req, value);
+ XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
+ xbt_free(req_str);
+ }
+
+ }
+
+ SIMIX_request_pre(req, value);
+ MC_wait_for_requests();
+ }
+
+ depth++;
+
+ /* Update statistics */
+ mc_stats_pair->visited_pairs++;
+ }
+ }
+
+ XBT_DEBUG("**** End Replay ****");
+}
+
+
/**
* \brief Dumps the contents of a model-checker's stack and shows the actual
* execution trace
* \param stack The stack to dump
*/
-void MC_dump_stack(xbt_fifo_t stack)
+void MC_dump_stack_safety_stateless(xbt_fifo_t stack)
{
mc_state_t state;
- MC_show_stack(stack);
+ MC_show_stack_safety_stateless(stack);
MC_SET_RAW_MEM;
while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
MC_UNSET_RAW_MEM;
}
-void MC_show_stack(xbt_fifo_t stack)
+
+void MC_show_stack_safety_stateless(xbt_fifo_t stack)
{
int value;
mc_state_t state;
XBT_INFO("%s", req_str);
xbt_free(req_str);*/
XBT_INFO("Counter-example execution trace:");
- MC_dump_stack(mc_stack);
+ MC_dump_stack_safety_stateless(mc_stack_safety_stateless);
+}
+
+void MC_show_deadlock_stateful(smx_req_t req)
+{
+ /*char *req_str = NULL;*/
+ XBT_INFO("**************************");
+ XBT_INFO("*** DEAD-LOCK DETECTED ***");
+ XBT_INFO("**************************");
+ XBT_INFO("Locked request:");
+ /*req_str = MC_request_to_string(req);
+ XBT_INFO("%s", req_str);
+ xbt_free(req_str);*/
+ XBT_INFO("Counter-example execution trace:");
+ MC_show_stack_safety_stateful(mc_stack_safety_stateful);
+}
+
+void MC_dump_stack_safety_stateful(xbt_fifo_t stack)
+{
+ //mc_state_ws_t state;
+
+ MC_show_stack_safety_stateful(stack);
+
+ /*MC_SET_RAW_MEM;
+ while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
+ MC_state_delete(state);
+ MC_UNSET_RAW_MEM;*/
+}
+
+
+void MC_show_stack_safety_stateful(xbt_fifo_t stack)
+{
+ int value;
+ mc_state_ws_t state;
+ xbt_fifo_item_t item;
+ smx_req_t req;
+ char *req_str = NULL;
+
+ for (item = xbt_fifo_get_last_item(stack);
+ (item ? (state = (mc_state_ws_t) (xbt_fifo_get_item_content(item)))
+ : (NULL)); item = xbt_fifo_get_prev_item(item)) {
+ req = MC_state_get_executed_request(state->graph_state, &value);
+ if(req){
+ req_str = MC_request_to_string(req, value);
+ XBT_INFO("%s", req_str);
+ xbt_free(req_str);
+ }
+ }
+}
+
+void MC_show_stack_liveness_stateful(xbt_fifo_t stack){
+ int value;
+ mc_pair_t pair;
+ xbt_fifo_item_t item;
+ smx_req_t req;
+ char *req_str = NULL;
+
+ for (item = xbt_fifo_get_last_item(stack);
+ (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item)))
+ : (NULL)); item = xbt_fifo_get_prev_item(item)) {
+ req = MC_state_get_executed_request(pair->graph_state, &value);
+ if(req){
+ req_str = MC_request_to_string(req, value);
+ XBT_INFO("%s", req_str);
+ xbt_free(req_str);
+ }
+ }
+}
+
+void MC_dump_stack_liveness_stateful(xbt_fifo_t stack){
+ mc_pair_t pair;
+
+ MC_SET_RAW_MEM;
+ while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
+ MC_pair_delete(pair);
+ MC_UNSET_RAW_MEM;
+}
+
+void MC_show_stack_liveness_stateless(xbt_fifo_t stack){
+ int value;
+ mc_pair_stateless_t pair;
+ xbt_fifo_item_t item;
+ smx_req_t req;
+ char *req_str = NULL;
+
+ for (item = xbt_fifo_get_last_item(stack);
+ (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item)))
+ : (NULL)); item = xbt_fifo_get_prev_item(item)) {
+ req = MC_state_get_executed_request(pair->graph_state, &value);
+ if(req){
+ if(pair->requests>0){
+ req_str = MC_request_to_string(req, value);
+ XBT_INFO("%s", req_str);
+ xbt_free(req_str);
+ }else{
+ XBT_INFO("End of system requests but evolution in Büchi automaton");
+ }
+ }
+ }
}
+void MC_dump_stack_liveness_stateless(xbt_fifo_t stack){
+ mc_pair_stateless_t pair;
+
+ MC_SET_RAW_MEM;
+ while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL)
+ MC_pair_stateless_delete(pair);
+ MC_UNSET_RAW_MEM;
+}
+
+
void MC_print_statistics(mc_stats_t stats)
{
XBT_INFO("State space size ~= %lu", stats->state_size);
{
XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
- XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
+ //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
XBT_INFO("Expanded / Visited = %lf",
(double) stats->visited_pairs / stats->expanded_pairs);
/*XBT_INFO("Exploration coverage = %lf",
XBT_INFO("*** PROPERTY NOT VALID ***");
XBT_INFO("**************************");
XBT_INFO("Counter-example execution trace:");
- MC_dump_stack(mc_stack);
+ MC_dump_stack_safety_stateless(mc_stack_safety_stateless);
MC_print_statistics(mc_stats);
xbt_abort();
}
}
-void MC_assert_pair(int prop){
+void MC_assert_stateful(int prop)
+{
+ if (MC_IS_ENABLED && !prop) {
+ XBT_INFO("**************************");
+ XBT_INFO("*** PROPERTY NOT VALID ***");
+ XBT_INFO("**************************");
+ XBT_INFO("Counter-example execution trace:");
+ MC_dump_stack_safety_stateful(mc_stack_safety_stateful);
+ MC_print_statistics(mc_stats);
+ xbt_abort();
+ }
+}
+
+void MC_assert_pair_stateful(int prop){
+ if (MC_IS_ENABLED && !prop) {
+ XBT_INFO("**************************");
+ XBT_INFO("*** PROPERTY NOT VALID ***");
+ XBT_INFO("**************************");
+ //XBT_INFO("Counter-example execution trace:");
+ MC_show_stack_liveness_stateful(mc_stack_liveness_stateful);
+ //MC_dump_snapshot_stack(mc_snapshot_stack);
+ MC_print_statistics_pairs(mc_stats_pair);
+ xbt_abort();
+ }
+}
+
+void MC_assert_pair_stateless(int prop){
if (MC_IS_ENABLED && !prop) {
XBT_INFO("**************************");
XBT_INFO("*** PROPERTY NOT VALID ***");
XBT_INFO("**************************");
//XBT_INFO("Counter-example execution trace:");
- MC_show_snapshot_stack(mc_snapshot_stack);
+ MC_show_stack_liveness_stateless(mc_stack_liveness_stateless);
//MC_dump_snapshot_stack(mc_snapshot_stack);
MC_print_statistics_pairs(mc_stats_pair);
xbt_abort();
