"Logging specific to algorithms for liveness properties verification");
xbt_dynar_t initial_pairs = NULL;
-int max_pair = 0;
xbt_dynar_t reached_pairs;
extern mc_snapshot_t initial_snapshot;
p->system_state = sn;
p->automaton_state = st;
p->graph_state = sg;
- p->num = max_pair;
- max_pair++;
mc_stats_pair->expanded_pairs++;
return p;
}
-int reached(mc_pair_t pair){
+int snapshot_compare(mc_snapshot_t s1, mc_snapshot_t s2){
+
+ if(s1->num_reg != s2->num_reg)
+ return 1;
+
+ int i;
+ for(i=0 ; i< s1->num_reg ; i++){
+
+ if(s1->regions[i]->size != s2->regions[i]->size)
+ return 1;
+
+ if(s1->regions[i]->start_addr != s2->regions[i]->start_addr)
+ return 1;
+
+ if(memcmp(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0)
+ return 1;
+
+ }
+
+ return 0;
+
+}
+
+int reached(xbt_automaton_t a){
if(xbt_dynar_is_empty(reached_pairs)){
- return 0;
+ return 0;
}else{
MC_SET_RAW_MEM;
- char hash[41];
- xbt_sha((const char *)&pair, hash);
- if(xbt_dynar_member(reached_pairs, hash)){
- MC_UNSET_RAW_MEM;
- return 1;
- }else{
- MC_UNSET_RAW_MEM;
- return 0;
+
+ mc_pair_reached_t pair = NULL;
+ pair = xbt_new0(s_mc_pair_reached_t, 1);
+ pair->automaton_state = a->current_state;
+ pair->prop_ato = xbt_dynar_new(sizeof(int), NULL);
+ pair->system_state = xbt_new0(s_mc_snapshot_t, 1);
+ MC_take_snapshot(pair->system_state);
+
+ /* Get values of propositional symbols */
+ unsigned int cursor = 0;
+ xbt_propositional_symbol_t ps = NULL;
+ xbt_dynar_foreach(a->propositional_symbols, cursor, ps){
+ int (*f)() = ps->function;
+ int res = (*f)();
+ xbt_dynar_push(pair->prop_ato, &res);
}
+
+ cursor = 0;
+ mc_pair_reached_t pair_test;
+
+ xbt_dynar_foreach(reached_pairs, cursor, pair_test){
+ if(automaton_state_compare(pair_test->automaton_state, pair->automaton_state) == 0){
+ //XBT_DEBUG("Same automaton state");
+ if(xbt_dynar_compare(pair_test->prop_ato, pair->prop_ato, propositional_symbols_compare_value) == 0){
+ //XBT_DEBUG("Same values of propositional symbols");
+ if(snapshot_compare(pair_test->system_state, pair->system_state) == 0){
+ //XBT_DEBUG("Same system state");
+ MC_UNSET_RAW_MEM;
+ return 1;
+ }
+ }
+ }
+ }
+
+ MC_UNSET_RAW_MEM;
+ return 0;
+
}
-
}
-void set_pair_reached(mc_pair_t pair){
+int set_pair_reached(xbt_automaton_t a){
+
+ if(reached(a) == 0){
- if(reached(pair) == 0){
MC_SET_RAW_MEM;
- char hash[41];
- xbt_sha((const char *)&pair, hash);
- xbt_dynar_push(reached_pairs, &hash);
+
+ mc_pair_reached_t pair = NULL;
+ pair = xbt_new0(s_mc_pair_reached_t, 1);
+ pair->automaton_state = a->current_state;
+ pair->prop_ato = xbt_dynar_new(sizeof(int), NULL);
+ pair->system_state = xbt_new0(s_mc_snapshot_t, 1);
+ MC_take_snapshot(pair->system_state);
+
+ /* Get values of propositional symbols */
+ unsigned int cursor = 0;
+ xbt_propositional_symbol_t ps = NULL;
+ xbt_dynar_foreach(a->propositional_symbols, cursor, ps){
+ int (*f)() = ps->function;
+ int res = (*f)();
+ xbt_dynar_push(pair->prop_ato, &res);
+ }
+
+ xbt_dynar_push(reached_pairs, &pair);
+
MC_UNSET_RAW_MEM;
+
+ return 1;
+
}
+ return 0;
}
void MC_pair_delete(mc_pair_t pair){
}
visited_pairs = xbt_dynar_new(sizeof(char *), NULL);
- reached_pairs = xbt_dynar_new(sizeof(char *), NULL);
+ reached_pairs = xbt_dynar_new(sizeof(mc_pair_reached_t), NULL);
MC_take_snapshot(init_snapshot);
XBT_DEBUG("********************* ( Depth = %d, search_cycle = %d )", xbt_fifo_size(mc_stack_liveness_stateful), search_cycle);
XBT_DEBUG("Pair : graph=%p, automaton=%p(%s), %u interleave", current_pair->graph_state, current_pair->automaton_state, current_pair->automaton_state->id,MC_state_interleave_size(current_pair->graph_state));
+ a->current_state = current_pair->automaton_state;
mc_stats_pair->visited_pairs++;
mc_pair_t next_pair = NULL;
mc_snapshot_t next_snapshot = NULL;
mc_snapshot_t current_snapshot = NULL;
- mc_pair_t pair_succ = NULL;;
+ mc_pair_t pair_succ = NULL;
+
+ MC_SET_RAW_MEM;
+ successors = xbt_dynar_new(sizeof(mc_pair_t), NULL);
+ MC_UNSET_RAW_MEM;
while((req = MC_state_get_request(current_pair->graph_state, &value)) != NULL){
next_snapshot = xbt_new0(s_mc_snapshot_t, 1);
MC_take_snapshot(next_snapshot);
- successors = xbt_dynar_new(sizeof(mc_pair_t), NULL);
+ xbt_dynar_reset(successors);
MC_UNSET_RAW_MEM;
xbt_dynar_foreach(successors, cursor, pair_succ){
- XBT_DEBUG("Search reached pair %p : graph=%p, automaton=%p", pair_succ, pair_succ->graph_state, pair_succ->automaton_state);
+ /*XBT_DEBUG("Search reached pair %p : graph=%p, automaton=%p", pair_succ, pair_succ->graph_state, pair_succ->automaton_state);
char hash[41];
XBT_DEBUG("Const char pair %s", (const char *)&pair_succ);
xbt_sha((const char *)&pair_succ, hash);
- XBT_DEBUG("Hash pair_succ %s", hash);
+ XBT_DEBUG("Hash pair_succ %s", hash);*/
- if((search_cycle == 1) && (reached(pair_succ) == 1)){
+ if((search_cycle == 1) && (reached(a) == 1)){
XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
XBT_INFO("| ACCEPTANCE CYCLE |");
XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
if(visited(pair_succ, search_cycle) == 0){
//mc_stats_pair->executed_transitions++;
-
+ set_pair_visited(pair_succ, search_cycle);
+
MC_SET_RAW_MEM;
xbt_fifo_unshift(mc_stack_liveness_stateful, pair_succ);
- set_pair_visited(pair_succ, search_cycle);
MC_UNSET_RAW_MEM;
MC_vddfs_stateful(a, search_cycle, 0);
if((search_cycle == 0) && ((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){
- set_pair_reached(pair_succ);
XBT_DEBUG("Acceptance pair : graph=%p, automaton=%p(%s)", pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id);
+ int res = set_pair_reached(a);
MC_SET_RAW_MEM;
xbt_fifo_unshift(mc_stack_liveness_stateful, pair_succ);
MC_vddfs_stateful(a, 1, 1);
- //MC_SET_RAW_MEM;
- xbt_dynar_pop(reached_pairs, NULL);
- //MC_UNSET_RAW_MEM;
+ if(res){
+ MC_SET_RAW_MEM;
+ xbt_dynar_pop(reached_pairs, NULL);
+ MC_UNSET_RAW_MEM;
+ }
}
}
}
- reached_pairs = xbt_dynar_new(sizeof(char *), NULL);
+ reached_pairs = xbt_dynar_new(sizeof(mc_pair_reached_t), NULL);
MC_take_snapshot(init_snapshot);
void MC_ddfs_stateful(xbt_automaton_t a, int search_cycle, int restore){
smx_process_t process = NULL;
-
+ mc_pair_t current_pair = NULL;
if(xbt_fifo_size(mc_stack_liveness_stateful) == 0)
return;
if(restore == 1){
- MC_restore_snapshot(((mc_pair_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateful)))->system_state);
- MC_UNSET_RAW_MEM;
- }
-
- /* Get current state */
- mc_pair_t current_pair = (mc_pair_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateful));
-
- if(restore==1){
+ current_pair = (mc_pair_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateful));
+ MC_restore_snapshot(current_pair->system_state);
xbt_swag_foreach(process, simix_global->process_list){
if(MC_process_is_enabled(process)){
MC_state_interleave_process(current_pair->graph_state, process);
}
}
+ MC_UNSET_RAW_MEM;
}
+ /* Get current state */
+ current_pair = (mc_pair_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateful));
+
+
XBT_DEBUG("********************* ( Depth = %d, search_cycle = %d )", xbt_fifo_size(mc_stack_liveness_stateful), search_cycle);
XBT_DEBUG("Pair : graph=%p, automaton=%p(%s), %u interleave", current_pair->graph_state, current_pair->automaton_state, current_pair->automaton_state->id,MC_state_interleave_size(current_pair->graph_state));
+ a->current_state = current_pair->automaton_state;
+
mc_stats_pair->visited_pairs++;
int value;
unsigned int cursor;
int res;
- xbt_dynar_t successors;
+ xbt_dynar_t successors = NULL;
- mc_pair_t next_pair;
- mc_snapshot_t next_snapshot;
- mc_snapshot_t current_snapshot;
+ mc_pair_t next_pair = NULL;
+ mc_snapshot_t next_snapshot = NULL;
+ mc_snapshot_t current_snapshot = NULL;
//sleep(1);
-
+ MC_SET_RAW_MEM;
+ successors = xbt_dynar_new(sizeof(mc_pair_t), NULL);
+ MC_UNSET_RAW_MEM;
while((req = MC_state_get_request(current_pair->graph_state, &value)) != NULL){
/* Debug information */
if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
req_str = MC_request_to_string(req, value);
- XBT_DEBUG("%u Execute: %s", search_cycle, req_str);
+ XBT_DEBUG("Execute: %s", req_str);
xbt_free(req_str);
}
next_snapshot = xbt_new0(s_mc_snapshot_t, 1);
MC_take_snapshot(next_snapshot);
-
- successors = xbt_dynar_new(sizeof(mc_pair_t), NULL);
+
+ xbt_dynar_reset(successors);
MC_UNSET_RAW_MEM;
- //xbt_dynar_reset(successors);
cursor = 0;
xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){
res = MC_automaton_evaluate_label(a, transition_succ->label);
-
- MC_SET_RAW_MEM;
if(res == 1){ // enabled transition in automaton
+ MC_SET_RAW_MEM;
next_pair = new_pair(next_snapshot,next_graph_state, transition_succ->dst);
xbt_dynar_push(successors, &next_pair);
+ MC_UNSET_RAW_MEM;
}
- MC_UNSET_RAW_MEM;
}
cursor = 0;
xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){
res = MC_automaton_evaluate_label(a, transition_succ->label);
-
- MC_SET_RAW_MEM;
if(res == 2){ // transition always enabled in automaton
+ MC_SET_RAW_MEM;
next_pair = new_pair(next_snapshot,next_graph_state, transition_succ->dst);
xbt_dynar_push(successors, &next_pair);
+ MC_UNSET_RAW_MEM;
}
- MC_UNSET_RAW_MEM;
+
}
//XBT_DEBUG("Search visited pair : graph=%p, automaton=%p", pair_succ->graph_state, pair_succ->automaton_state);
- if((search_cycle == 1) && (reached(pair_succ) == 1)){
+ if((search_cycle == 1) && (reached(a) == 1)){
XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
XBT_INFO("| ACCEPTANCE CYCLE |");
XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
if((search_cycle == 0) && ((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){
- set_pair_reached(pair_succ);
+ int res = set_pair_reached(a);
XBT_DEBUG("Acceptance pair : graph=%p, automaton=%p(%s)", pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id);
MC_SET_RAW_MEM;
MC_ddfs_stateful(a, 1, 1);
- //MC_SET_RAW_MEM;
- xbt_dynar_pop(reached_pairs, NULL);
- //MC_UNSET_RAW_MEM;
+ if(res){
+ MC_SET_RAW_MEM;
+ xbt_dynar_pop(reached_pairs, NULL);
+ MC_UNSET_RAW_MEM;
+ }
}
}
if(MC_state_interleave_size(current_pair->graph_state) > 0){
+ XBT_DEBUG("Backtracking to depth %u", xbt_fifo_size(mc_stack_liveness_stateful));
MC_restore_snapshot(current_snapshot);
MC_UNSET_RAW_MEM;
}
}
-int reached_stateless(mc_pair_stateless_t pair){
-
- if(xbt_dynar_is_empty(reached_pairs)){
- return 0;
- }else{
- MC_SET_RAW_MEM;
-
- char hash[41] ="";
- xbt_sha((const char*)&pair, hash);
- XBT_DEBUG("Hash : %s", hash);
- if(xbt_dynar_member(reached_pairs, hash)){
- XBT_DEBUG("Pair already reached");
- MC_UNSET_RAW_MEM;
- return 1;
- }else{
- MC_UNSET_RAW_MEM;
- return 0;
- }
- }
-}
-
-void set_pair_stateless_reached(mc_pair_stateless_t pair){
-
- //MC_SET_RAW_MEM;
- char hash[41] = "";
- xbt_sha((const char*)&pair, hash);
- XBT_DEBUG("Hash to pushed %s", hash);
- if(strcmp(hash, "da39a3ee5e6b4b0d3255bfef95601890afd80709") == 0){
- XBT_DEBUG("Error in hash, pair empty !");
- sleep(4);
- }
-
- xbt_dynar_push(reached_pairs, &hash);
- //MC_UNSET_RAW_MEM;
-
-}
-
void MC_ddfs_stateless_init(xbt_automaton_t a){
}
}
- reached_pairs = xbt_dynar_new(sizeof(char *), NULL);
+ reached_pairs = xbt_dynar_new(sizeof(mc_pair_reached_t), NULL);
+
+ initial_snapshot = xbt_new0(s_mc_snapshot_t, 1);
+ MC_take_snapshot(initial_snapshot);
+
MC_UNSET_RAW_MEM;
unsigned int cursor = 0;
MC_SET_RAW_MEM;
mc_initial_pair = new_pair_stateless(initial_graph_state, state);
xbt_fifo_unshift(mc_stack_liveness_stateless, mc_initial_pair);
-
- initial_snapshot = xbt_new0(s_mc_snapshot_t, 1);
- MC_take_snapshot(initial_snapshot);
-
MC_UNSET_RAW_MEM;
if(cursor == 0){
MC_SET_RAW_MEM;
mc_initial_pair = new_pair_stateless(initial_graph_state, state);
xbt_fifo_unshift(mc_stack_liveness_stateless, mc_initial_pair);
-
- initial_snapshot = xbt_new0(s_mc_snapshot_t, 1);
- MC_take_snapshot(initial_snapshot);
-
MC_UNSET_RAW_MEM;
if(cursor == 0){
/* Get current state */
current_pair = (mc_pair_stateless_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateless));
+
+ /* Update current state in automaton */
+ a->current_state = current_pair->automaton_state;
XBT_DEBUG("********************* ( Depth = %d, search_cycle = %d )", xbt_fifo_size(mc_stack_liveness_stateless), search_cycle);
XBT_DEBUG("Pair : graph=%p, automaton=%p(%s), %u interleave", current_pair->graph_state, current_pair->automaton_state, current_pair->automaton_state->id,MC_state_interleave_size(current_pair->graph_state));
- //sleep(1);
mc_stats_pair->visited_pairs++;
- /*if(MC_state_interleave_size(current_pair->graph_state) == 0 && (current_pair->automaton_state->type == 1)){
- xbt_fifo_shift(mc_stack_liveness_stateless);
- XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
- XBT_INFO("| ACCEPTANCE CYCLE |");
- XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
- XBT_INFO("Counter-example that violates formula :");
- MC_show_stack_liveness_stateless(mc_stack_liveness_stateless);
- MC_dump_stack_liveness_stateless(mc_stack_liveness_stateless);
- MC_print_statistics_pairs(mc_stats_pair);
- exit(0);
- }*/
-
int value;
mc_state_t next_graph_state = NULL;
smx_req_t req = NULL;
while((req = MC_state_get_request(current_pair->graph_state, &value)) != NULL){
- //XBT_DEBUG("Interleave size %u", MC_state_interleave_size(current_pair->graph_state));
/* Debug information */
if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
MC_SET_RAW_MEM;
- /* Create the new expanded graph_state */
+ /* Create the new expanded graph_state */
next_graph_state = MC_state_pair_new();
/* Get enabled process and insert it in the interleave set of the next graph_state */
MC_UNSET_RAW_MEM;
-
-
+
cursor= 0;
xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){
MC_UNSET_RAW_MEM;
}
- cursor = 0;
-
- //XBT_DEBUG("Successors length %lu", xbt_dynar_length(successors));
+ cursor = 0;
xbt_dynar_foreach(successors, cursor, pair_succ){
- if((search_cycle == 1) && (reached_stateless(pair_succ) == 1)){
+ if((search_cycle == 1) && (reached(a) == 1)){
XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
XBT_INFO("| ACCEPTANCE CYCLE |");
XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
MC_ddfs_stateless(a, search_cycle, 0);
-
-
- //XBT_DEBUG("Stack size %u", xbt_fifo_size(mc_stack_liveness_stateless));
-
+
if((search_cycle == 0) && ((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){
- XBT_DEBUG("Acceptance pair : graph=%p, automaton=%p(%s)", pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id);
- set_pair_stateless_reached(pair_succ);
+ XBT_DEBUG("Acceptance pair %p : graph=%p, automaton=%p(%s)", pair_succ, pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id);
+ int res = set_pair_reached(a);
MC_SET_RAW_MEM;
xbt_fifo_unshift(mc_stack_liveness_stateless, pair_succ);
MC_ddfs_stateless(a, 1, 1);
- MC_SET_RAW_MEM;
- xbt_dynar_pop(reached_pairs, NULL);
- MC_UNSET_RAW_MEM;
+ if(res){
+ MC_SET_RAW_MEM;
+ xbt_dynar_pop(reached_pairs, NULL);
+ MC_UNSET_RAW_MEM;
+ }
}
}