#include "private.h"
#include "unistd.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_dfs, mc,
- "Logging specific to MC DFS algorithm");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_liveness, mc,
+ "Logging specific to algorithms for liveness properties verification");
xbt_dynar_t initial_pairs = NULL;
int max_pair = 0;
-xbt_dynar_t visited_pairs;
xbt_dynar_t reached_pairs;
+extern mc_snapshot_t initial_snapshot;
-mc_pairs_t new_pair(mc_snapshot_t sn, mc_state_t sg, xbt_state_t st){
- mc_pairs_t p = NULL;
- p = xbt_new0(s_mc_pairs_t, 1);
+mc_pair_t new_pair(mc_snapshot_t sn, mc_state_t sg, xbt_state_t st){
+ mc_pair_t p = NULL;
+ p = xbt_new0(s_mc_pair_t, 1);
p->system_state = sn;
- p->automaton_state = st;
+ p->automaton_state = st;
p->graph_state = sg;
p->num = max_pair;
max_pair++;
+ mc_stats_pair->expanded_pairs++;
return p;
}
-void set_pair_visited(mc_state_t gs, xbt_state_t as, int sc){
+int reached(mc_pair_t pair){
+
+ char* hash_reached = malloc(sizeof(char)*160);
+ unsigned int c= 0;
- //XBT_DEBUG("New visited pair : graph=%p, automaton=%p", gs, as);
MC_SET_RAW_MEM;
- mc_visited_pairs_t p = NULL;
- p = xbt_new0(s_mc_visited_pairs_t, 1);
- p->graph_state = gs;
- p->automaton_state = as;
- p->search_cycle = sc;
- xbt_dynar_push(visited_pairs, &p);
- //XBT_DEBUG("New visited pair , length of visited pairs : %lu", xbt_dynar_length(visited_pairs));
+ char *hash = malloc(sizeof(char)*160);
+ xbt_sha((char *)&pair, hash);
+ xbt_dynar_foreach(reached_pairs, c, hash_reached){
+ if(strcmp(hash, hash_reached) == 0){
+ MC_UNSET_RAW_MEM;
+ return 1;
+ }
+ }
+
MC_UNSET_RAW_MEM;
+ return 0;
+}
+
+void set_pair_reached(mc_pair_t pair){
+
+ if(reached(pair) == 0){
+ MC_SET_RAW_MEM;
+ char *hash = malloc(sizeof(char)*160) ;
+ xbt_sha((char *)&pair, hash);
+ xbt_dynar_push(reached_pairs, &hash);
+ MC_UNSET_RAW_MEM;
+ }
- //XBT_DEBUG("New visited pair , length of visited pairs : %lu", xbt_dynar_length(visited_pairs));
}
-int reached(mc_state_t gs, xbt_state_t as ){
+void MC_pair_delete(mc_pair_t pair){
+ xbt_free(pair->graph_state->proc_status);
+ xbt_free(pair->graph_state);
+ //xbt_free(pair->automaton_state); -> FIXME : à implémenter
+ xbt_free(pair);
+}
- mc_reached_pairs_t rp = NULL;
- unsigned int c= 0;
- unsigned int i;
- int different_process;
- MC_SET_RAW_MEM;
- xbt_dynar_foreach(reached_pairs, c, rp){
- if(rp->automaton_state == as){
- different_process=0;
- for(i=0; i < gs->max_pid; i++){
- if(gs->proc_status[i].state != rp->graph_state->proc_status[i].state){
- different_process++;
- }
- }
- if(different_process==0){
- MC_UNSET_RAW_MEM;
- XBT_DEBUG("Pair (graph=%p, automaton=%p(%s)) already reached (graph=%p)!", gs, as, as->id, rp->graph_state);
- return 1;
+int MC_automaton_evaluate_label(xbt_automaton_t a, xbt_exp_label_t l){
+
+ switch(l->type){
+ case 0 : {
+ int left_res = MC_automaton_evaluate_label(a, l->u.or_and.left_exp);
+ int right_res = MC_automaton_evaluate_label(a, l->u.or_and.right_exp);
+ return (left_res || right_res);
+ break;
+ }
+ case 1 : {
+ int left_res = MC_automaton_evaluate_label(a, l->u.or_and.left_exp);
+ int right_res = MC_automaton_evaluate_label(a, l->u.or_and.right_exp);
+ return (left_res && right_res);
+ break;
+ }
+ case 2 : {
+ int res = MC_automaton_evaluate_label(a, l->u.exp_not);
+ return (!res);
+ break;
+ }
+ case 3 : {
+ unsigned int cursor = 0;
+ xbt_propositional_symbol_t p = NULL;
+ xbt_dynar_foreach(a->propositional_symbols, cursor, p){
+ if(strcmp(p->pred, l->u.predicat) == 0){
+ int (*f)() = p->function;
+ return (*f)();
}
- /* XBT_DEBUG("Pair (graph=%p, automaton=%p(%s)) already reached !", gs, as, as->id); */
- /* return 1; */
}
+ return -1;
+ break;
+ }
+ case 4 : {
+ return 2;
+ break;
+ }
+ default :
+ return -1;
}
- MC_UNSET_RAW_MEM;
- return 0;
}
-void set_pair_reached(mc_state_t gs, xbt_state_t as){
- //XBT_DEBUG("Set pair (graph=%p, automaton=%p) reached ", gs, as);
- //if(reached(gs, as) == 0){
- MC_SET_RAW_MEM;
- mc_reached_pairs_t p = NULL;
- p = xbt_new0(s_mc_reached_pairs_t, 1);
- p->graph_state = gs;
- p->automaton_state = as;
- xbt_dynar_push(reached_pairs, &p);
- XBT_DEBUG("New reached pair : graph=%p, automaton=%p(%s)", gs, as, as->id);
- MC_UNSET_RAW_MEM;
- //}
+
+/******************************* DFS with visited state *******************************/
+
+xbt_dynar_t visited_pairs;
+
+void set_pair_visited(mc_pair_t pair, int sc){
+
+ MC_SET_RAW_MEM;
+ mc_visited_pair_t p = NULL;
+ p = xbt_new0(s_mc_visited_pair_t, 1);
+ p->pair = pair;
+ p->search_cycle = sc;
+ char *hash = malloc(sizeof(char)*160);
+ xbt_sha((char *)&p, hash);
+ xbt_dynar_push(visited_pairs, &hash);
+ MC_UNSET_RAW_MEM;
}
-int visited(mc_state_t gs, xbt_state_t as, int sc){
- unsigned int c = 0;
- mc_visited_pairs_t p = NULL;
- unsigned int i;
- int different_process;
+int visited(mc_pair_t pair, int sc){
- //XBT_DEBUG("Visited pair length : %lu", xbt_dynar_length(visited_pairs));
+ char* hash_visited = malloc(sizeof(char)*160);
+ unsigned int c= 0;
MC_SET_RAW_MEM;
- xbt_dynar_foreach(visited_pairs, c, p){
- //XBT_DEBUG("Test pair visited");
- //sleep(1);
- if((p->automaton_state == as) && (p->search_cycle == sc)){
- different_process=0;
- for(i=0; i < gs->max_pid; i++){
- if(gs->proc_status[i].state != p->graph_state->proc_status[i].state){
- different_process++;
- }
- }
- if(different_process==0){
- MC_UNSET_RAW_MEM;
- return 1;
- }
+ mc_visited_pair_t p = NULL;
+ p = xbt_new0(s_mc_visited_pair_t, 1);
+ p->pair = pair;
+ p->search_cycle = sc;
+ char *hash = malloc(sizeof(char)*160);
+ xbt_sha((char *)&p, hash);
+ xbt_dynar_foreach(visited_pairs, c, hash_visited){
+ if(strcmp(hash, hash_visited) == 0){
+ MC_UNSET_RAW_MEM;
+ return 1;
}
}
+
MC_UNSET_RAW_MEM;
return 0;
}
-void MC_dfs_init(xbt_automaton_t a){
- XBT_DEBUG("**************************************************");
- XBT_DEBUG("DFS init");
- XBT_DEBUG("**************************************************");
+void MC_vddfs_stateful_init(xbt_automaton_t a){
+
+ XBT_DEBUG("**************************************************");
+ XBT_DEBUG("Double-DFS stateful with visited state init");
+ XBT_DEBUG("**************************************************");
- mc_pairs_t mc_initial_pair;
+ mc_pair_t mc_initial_pair;
mc_state_t initial_graph_state;
smx_process_t process;
mc_snapshot_t init_snapshot;
}
}
- visited_pairs = xbt_dynar_new(sizeof(mc_visited_pairs_t), NULL);
- reached_pairs = xbt_dynar_new(sizeof(mc_reached_pairs_t), NULL);
+ visited_pairs = xbt_dynar_new(sizeof(char *), NULL);
+ reached_pairs = xbt_dynar_new(sizeof(char *), NULL);
MC_take_snapshot(init_snapshot);
MC_UNSET_RAW_MEM;
- /* unsigned int cursor = 0; */
- /* xbt_state_t state = NULL; */
- /* int nb_init_state = 0; */
-
- /* xbt_dynar_foreach(a->states, cursor, state){ */
- /* if(state->type == -1){ */
-
- /* MC_SET_RAW_MEM; */
- /* mc_initial_pair = new_pair(init_snapshot, initial_graph_state, state); */
-
- /* xbt_fifo_unshift(mc_snapshot_stack, mc_initial_pair); */
-
- /* XBT_DEBUG("**************************************************"); */
- /* XBT_DEBUG("Initial state=%p ", mc_initial_pair); */
-
- /* MC_UNSET_RAW_MEM; */
-
- /* set_pair_visited(mc_initial_pair->graph_state, mc_initial_pair->automaton_state, 0); */
-
- /* if(nb_init_state == 0) */
- /* MC_dfs(a, 0, 0); */
- /* else */
- /* MC_dfs(a, 0, 1); */
-
- /* nb_init_state++; */
- /* } */
- /* } */
-
/* regarder dans l'automate toutes les transitions activables grâce à l'état initial du système
-> donnera les états initiaux de la propriété consistants avec l'état initial du système */
unsigned int cursor = 0;
- unsigned int cursor2 = 0;
+ //unsigned int cursor2 = 0;
xbt_state_t state = NULL;
- int res;
- xbt_transition_t transition_succ;
- xbt_dynar_t successors = xbt_dynar_new(sizeof(mc_pairs_t), NULL);
- xbt_dynar_t elses = xbt_dynar_new(sizeof(mc_pairs_t), NULL);
- mc_pairs_t pair_succ;
+ //int res;
+ //xbt_transition_t transition_succ;
+ //xbt_dynar_t successors = xbt_dynar_new(sizeof(mc_pair_t), NULL);
+ //mc_pair_t pair_succ;
- xbt_dynar_foreach(a->states, cursor, state){
+ /* xbt_dynar_foreach(a->states, cursor, state){
if(state->type == -1){
xbt_dynar_foreach(state->out, cursor2, transition_succ){
res = MC_automaton_evaluate_label(a, transition_succ->label);
MC_UNSET_RAW_MEM;
- }else{
- if(res == 2){
-
- MC_SET_RAW_MEM;
-
- mc_initial_pair = new_pair(init_snapshot, initial_graph_state, transition_succ->dst);
- xbt_dynar_push(elses, &mc_initial_pair);
-
- MC_UNSET_RAW_MEM;
- }
}
}
}
}
-
cursor = 0;
- xbt_dynar_foreach(successors, cursor, pair_succ){
- MC_SET_RAW_MEM;
+ cursor2 = 0;
+
+ xbt_dynar_foreach(a->states, cursor, state){
+ if(state->type == -1){
+ xbt_dynar_foreach(state->out, cursor2, transition_succ){
+ res = MC_automaton_evaluate_label(a, transition_succ->label);
+
+ if(res == 2){
+
+ MC_SET_RAW_MEM;
- xbt_fifo_unshift(mc_snapshot_stack, pair_succ);
+ mc_initial_pair = new_pair(init_snapshot, initial_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &mc_initial_pair);
- XBT_DEBUG("**************************************************");
- XBT_DEBUG("Initial pair=%p (graph=%p, automaton=%p(%s)) ", pair_succ, pair_succ->graph_state, pair_succ->automaton_state,pair_succ->automaton_state->id );
+ MC_UNSET_RAW_MEM;
- MC_UNSET_RAW_MEM;
+ }
+ }
+ }
+ }
+
+ cursor = 0;
- set_pair_visited(pair_succ->graph_state, pair_succ->automaton_state, 0);
+ if(xbt_dynar_length(successors) == 0){
+ xbt_dynar_foreach(a->states, cursor, state){
+ if(state->type == -1){
+ MC_SET_RAW_MEM;
- if(cursor == 0){
- MC_dfs(a, 0, 0);
- }else{
- MC_dfs(a, 0, 1);
+ mc_initial_pair = new_pair(init_snapshot, initial_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &mc_initial_pair);
+
+ MC_UNSET_RAW_MEM;
+ }
}
}
cursor = 0;
- xbt_dynar_foreach(elses, cursor, pair_succ){
+ xbt_dynar_foreach(successors, cursor, pair_succ){
MC_SET_RAW_MEM;
- xbt_fifo_unshift(mc_snapshot_stack, pair_succ);
-
- XBT_DEBUG("**************************************************");
- XBT_DEBUG("Initial pair=%p (graph=%p, automaton=%p(%s)) ", pair_succ, pair_succ->graph_state, pair_succ->automaton_state,pair_succ->automaton_state->id );
+ xbt_fifo_unshift(mc_stack_liveness_stateful, pair_succ);
MC_UNSET_RAW_MEM;
- set_pair_visited(pair_succ->graph_state, pair_succ->automaton_state, 0);
-
- if((xbt_dynar_length(successors) == 0) && (cursor == 0)){
- MC_dfs(a, 0, 0);
+ if(cursor == 0){
+ MC_vddfs_stateful(a, 0, 0);
}else{
- MC_dfs(a, 0, 1);
+ MC_vddfs_stateful(a, 0, 1);
}
- }
-
+ } */
+
+ cursor = 0;
+ xbt_dynar_foreach(a->states, cursor, state){
+ if(state->type == -1){
+
+ MC_SET_RAW_MEM;
+ mc_initial_pair = new_pair(init_snapshot, initial_graph_state, state);
+ xbt_fifo_unshift(mc_stack_liveness_stateful, mc_initial_pair);
+ MC_UNSET_RAW_MEM;
+
+ if(cursor == 0){
+ MC_vddfs_stateful(a, 0, 0);
+ }else{
+ MC_vddfs_stateful(a, 0, 1);
+ }
+ }
+ }
}
-void MC_dfs(xbt_automaton_t a, int search_cycle, int restore){
+void MC_vddfs_stateful(xbt_automaton_t a, int search_cycle, int restore){
smx_process_t process = NULL;
- if(xbt_fifo_size(mc_snapshot_stack) == 0)
+ if(xbt_fifo_size(mc_stack_liveness_stateful) == 0)
return;
if(restore == 1){
- MC_restore_snapshot(((mc_pairs_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_snapshot_stack)))->system_state);
+ 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;
}
- //XBT_DEBUG("Lpv length after restore snapshot: %lu", xbt_dynar_length(visited_pairs));
/* Get current state */
- mc_pairs_t current_pair = (mc_pairs_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_snapshot_stack));
+ 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){
xbt_swag_foreach(process, simix_global->process_list){
if(MC_process_is_enabled(process)){
- //XBT_DEBUG("Pid : %lu", process->pid);
MC_state_interleave_process(current_pair->graph_state, process);
}
}
}
- XBT_DEBUG("************************************************** ( search_cycle = %d )", search_cycle);
- XBT_DEBUG("State : 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));
- //XBT_DEBUG("Restore : %d", restore);
+ 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));
- //XBT_DEBUG("Reached pairs : %lu", xbt_dynar_length(reached_pairs));
-
- //sleep(1);
mc_stats_pair->visited_pairs++;
smx_req_t req = NULL;
char *req_str;
- mc_pairs_t pair_succ;
+ mc_pair_t pair_succ;
xbt_transition_t transition_succ;
unsigned int cursor;
int res;
- //int enabled_transition = 0;
- xbt_dynar_t successors = xbt_dynar_new(sizeof(mc_pairs_t), NULL);
- xbt_dynar_t elses = xbt_dynar_new(sizeof(mc_pairs_t), NULL);
+ xbt_dynar_t successors = xbt_dynar_new(sizeof(mc_pair_t), NULL);
- mc_pairs_t next_pair;
+ mc_pair_t next_pair;
mc_snapshot_t next_snapshot;
mc_snapshot_t current_snapshot;
/* Debug information */
- if(XBT_LOG_ISENABLED(mc_dfs, xbt_log_priority_debug)){
+ if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){
req_str = MC_request_to_string(req, value);
XBT_DEBUG("Execute: %s", req_str);
xbt_free(req_str);
/* Get enabled process and insert it in the interleave set of the next graph_state */
xbt_swag_foreach(process, simix_global->process_list){
if(MC_process_is_enabled(process)){
- XBT_DEBUG("Pid : %lu", process->pid);
MC_state_interleave_process(next_graph_state, process);
}
}
MC_UNSET_RAW_MEM;
xbt_dynar_reset(successors);
- xbt_dynar_reset(elses);
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;
- next_pair = new_pair(next_snapshot,next_graph_state, transition_succ->dst);
+
+ if(res == 1){
+ next_pair = new_pair(next_snapshot,next_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &next_pair);
+ }
- //XBT_DEBUG("Next pair : %p", next_pair);
+ 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 == 1){ // enabled transition in automaton
+ if(res == 2){
+ next_pair = new_pair(next_snapshot,next_graph_state, transition_succ->dst);
xbt_dynar_push(successors, &next_pair);
- mc_stats_pair->expanded_pairs++;
- }else{
- if(res == 2){ // enabled transition in automaton
- xbt_dynar_push(elses, &next_pair);
- mc_stats_pair->expanded_pairs++;
- }
}
MC_UNSET_RAW_MEM;
}
+
if(xbt_dynar_length(successors) == 0){
MC_SET_RAW_MEM;
next_pair = new_pair(next_snapshot, next_graph_state, current_pair->automaton_state);
xbt_dynar_push(successors, &next_pair);
- mc_stats_pair->expanded_pairs++;
MC_UNSET_RAW_MEM;
}
+ //XBT_DEBUG("Successors length %lu", xbt_dynar_length(successors));
+
cursor = 0;
xbt_dynar_foreach(successors, cursor, pair_succ){
//XBT_DEBUG("Search visited pair : graph=%p, automaton=%p", pair_succ->graph_state, pair_succ->automaton_state);
- if((search_cycle == 1) && (reached(pair_succ->graph_state, pair_succ->automaton_state) == 1)){
+ if((search_cycle == 1) && (reached(pair_succ) == 1)){
XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
XBT_INFO("| ACCEPTANCE CYCLE |");
XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
XBT_INFO("Counter-example that violates formula :");
- MC_show_snapshot_stack(mc_snapshot_stack);
- MC_dump_snapshot_stack(mc_snapshot_stack);
+ MC_show_stack_liveness_stateful(mc_stack_liveness_stateful);
+ MC_dump_stack_liveness_stateful(mc_stack_liveness_stateful);
MC_print_statistics_pairs(mc_stats_pair);
exit(0);
}
- if(visited(pair_succ->graph_state, pair_succ->automaton_state, search_cycle) == 0){
-
- //XBT_DEBUG("Unvisited pair !");
+ if(visited(pair_succ, search_cycle) == 0){
mc_stats_pair->executed_transitions++;
MC_SET_RAW_MEM;
- xbt_fifo_unshift(mc_snapshot_stack, pair_succ);
+ xbt_fifo_unshift(mc_stack_liveness_stateful, pair_succ);
+ set_pair_visited(pair_succ, search_cycle);
+ //XBT_DEBUG("New pair (graph=%p, automaton=%p) in stack", pair_succ->graph_state, pair_succ->automaton_state);
MC_UNSET_RAW_MEM;
- set_pair_visited(pair_succ->graph_state, pair_succ->automaton_state, search_cycle);
- MC_dfs(a, search_cycle, 0);
+ MC_vddfs_stateful(a, search_cycle, 0);
- if((search_cycle == 0) && (current_pair->automaton_state->type == 1)){
+ //XBT_DEBUG("Pair (graph=%p, automaton=%p) expanded", pair_succ->graph_state, pair_succ->automaton_state);
+
+ }else{
- MC_restore_snapshot(current_pair->system_state);
- MC_UNSET_RAW_MEM;
-
- xbt_swag_foreach(process, simix_global->process_list){
- if(MC_process_is_enabled(process)){
- //XBT_DEBUG("Pid : %lu", process->pid);
- MC_state_interleave_process(current_pair->graph_state, process);
- }
- }
-
- set_pair_reached(current_pair->graph_state, current_pair->automaton_state);
- XBT_DEBUG("Acceptance pair : graph=%p, automaton=%p(%s)", current_pair->graph_state, current_pair->automaton_state, current_pair->automaton_state->id);
- MC_dfs(a, 1, 1);
+ XBT_DEBUG("Pair already visited !");
- }
}
}
- cursor = 0;
- xbt_dynar_foreach(elses, cursor, pair_succ){
-
- //XBT_DEBUG("Search visited pair : graph=%p, automaton=%p", pair_succ->graph_state, pair_succ->automaton_state);
-
- if((search_cycle == 1) && (reached(pair_succ->graph_state, pair_succ->automaton_state) == 1)){
- XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
- XBT_INFO("| ACCEPTANCE CYCLE |");
- XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
- XBT_INFO("Counter-example that violates formula :");
- MC_show_snapshot_stack(mc_snapshot_stack);
- MC_dump_snapshot_stack(mc_snapshot_stack);
- MC_print_statistics_pairs(mc_stats_pair);
- exit(0);
- }
-
- if(visited(pair_succ->graph_state, pair_succ->automaton_state, search_cycle) == 0){
-
- //XBT_DEBUG("Unvisited pair !");
+ if((search_cycle == 0) && (current_pair->automaton_state->type == 1)){
- mc_stats_pair->executed_transitions++;
-
- MC_SET_RAW_MEM;
- xbt_fifo_unshift(mc_snapshot_stack, pair_succ);
+ /*MC_restore_snapshot(current_pair->system_state);
MC_UNSET_RAW_MEM;
-
- set_pair_visited(pair_succ->graph_state, pair_succ->automaton_state, search_cycle);
- MC_dfs(a, search_cycle, 0);
-
- if((search_cycle == 0) && (current_pair->automaton_state->type == 1)){
-
- MC_restore_snapshot(current_pair->system_state);
- MC_UNSET_RAW_MEM;
- xbt_swag_foreach(process, simix_global->process_list){
- if(MC_process_is_enabled(process)){
- //XBT_DEBUG("Pid : %lu", process->pid);
- MC_state_interleave_process(current_pair->graph_state, process);
- }
- }
+ xbt_swag_foreach(process, simix_global->process_list){
+ if(MC_process_is_enabled(process)){
+ MC_state_interleave_process(current_pair->graph_state, process);
+ }
+ }*/
- set_pair_reached(current_pair->graph_state, current_pair->automaton_state);
- XBT_DEBUG("Acceptance pair : graph=%p, automaton=%p(%s)", current_pair->graph_state, current_pair->automaton_state, current_pair->automaton_state->id);
- MC_dfs(a, 1, 1);
+ set_pair_reached(current_pair);
+ XBT_DEBUG("Acceptance pair : graph=%p, automaton=%p(%s)", current_pair->graph_state, current_pair->automaton_state, current_pair->automaton_state->id);
+ MC_vddfs_stateful(a, 1, 1);
- }
- }
}
+
if(MC_state_interleave_size(current_pair->graph_state) > 0){
MC_restore_snapshot(current_snapshot);
MC_UNSET_RAW_MEM;
- //XBT_DEBUG("Snapshot restored");
}
}
MC_SET_RAW_MEM;
- //remove_pair_reached(current_pair->graph_state);
- xbt_fifo_shift(mc_snapshot_stack);
- XBT_DEBUG("State (graph=%p, automaton =%p) shifted in snapshot_stack", current_pair->graph_state, current_pair->automaton_state);
+ mc_pair_t top_pair = (mc_pair_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateful));
+ if((top_pair->graph_state == current_pair->graph_state) && (top_pair->automaton_state == current_pair->automaton_state)){
+ xbt_fifo_shift(mc_stack_liveness_stateful);
+ XBT_DEBUG("Pair (graph=%p, automaton =%p) shifted in stack", current_pair->graph_state, current_pair->automaton_state);
+ }
MC_UNSET_RAW_MEM;
-}
-
-void MC_show_snapshot_stack(xbt_fifo_t stack){
- int value;
- mc_pairs_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_pairs_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_snapshot_stack(xbt_fifo_t stack){
- mc_pairs_t pair;
- MC_SET_RAW_MEM;
- while ((pair = (mc_pairs_t) xbt_fifo_pop(stack)) != NULL)
- MC_pair_delete(pair);
- MC_UNSET_RAW_MEM;
}
-void MC_pair_delete(mc_pairs_t pair){
- xbt_free(pair->graph_state->proc_status);
- xbt_free(pair->graph_state);
- //xbt_free(pair->automaton_state); -> FIXME : à implémenter
- xbt_free(pair);
-}
-int MC_automaton_evaluate_label(xbt_automaton_t a, xbt_exp_label_t l){
-
- switch(l->type){
- case 0 : {
- int left_res = MC_automaton_evaluate_label(a, l->u.or_and.left_exp);
- int right_res = MC_automaton_evaluate_label(a, l->u.or_and.right_exp);
- return (left_res || right_res);
- break;
- }
- case 1 : {
- int left_res = MC_automaton_evaluate_label(a, l->u.or_and.left_exp);
- int right_res = MC_automaton_evaluate_label(a, l->u.or_and.right_exp);
- return (left_res && right_res);
- break;
- }
- case 2 : {
- int res = MC_automaton_evaluate_label(a, l->u.exp_not);
- return (!res);
- break;
- }
- case 3 : {
- unsigned int cursor = 0;
- xbt_propositional_symbol_t p = NULL;
- xbt_dynar_foreach(a->propositional_symbols, cursor, p){
- if(strcmp(p->pred, l->u.predicat) == 0){
- int (*f)() = p->function;
- return (*f)();
- }
- }
- return -1;
- break;
- }
- case 4 : {
- return 2;
- break;
- }
- default :
- return -1;
- }
-}
+/********************* Double-DFS stateful without visited state *******************/
-/*void MC_dfs(xbt_automaton_t a, int search_cycle){
- xbt_state_t current_state = (xbt_state_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(stack_automaton_dfs));
- xbt_transition_t transition_succ = NULL;
- xbt_state_t successor = NULL;
- unsigned int cursor = 0;
- xbt_dynar_t elses = xbt_dynar_new(sizeof(xbt_transition_t), NULL);
- int res;
+void MC_ddfs_stateful_init(xbt_automaton_t a){
- //printf("++ current state : %s\n", current_state->id);
-
- xbt_dynar_foreach(current_state->out, cursor, transition_succ){
- successor = transition_succ->dst;
- res = MC_automaton_evaluate_label(a, transition_succ->label);
- //printf("-- state : %s, transition_label : %d, res = %d\n", successor->id, transition_succ->label->type, res);
- if(res == 1){
- if(search_cycle == 1 && reached_dfs != NULL){
- if(strcmp(reached_dfs->id, successor->id) == 0){
- xbt_dynar_push(state_automaton_visited_dfs, &successor);
- printf("\n-*-*-*-*-*-*- ACCEPTANCE CYCLE -*-*-*-*-*-*-\n");
- printf("Visited states : \n");
- unsigned int cursor2 = 0;
- xbt_state_t visited_state = NULL;
- xbt_dynar_foreach(state_automaton_visited_dfs, cursor2, visited_state){
- printf("State : %s\n", visited_state->id);
- }
- exit(1);
- }
- }
- if(successor->visited == 0){
- successor->visited = 1;
- xbt_fifo_unshift(stack_automaton_dfs, successor);
- xbt_dynar_push(state_automaton_visited_dfs, &successor);
- MC_dfs(a, search_cycle);
- if(search_cycle == 0 && successor->type == 1){
- reached_dfs = successor;
- MC_dfs(a, 1);
- }
- }
- }else{
- if(res == 2){
- xbt_dynar_push(elses,&transition_succ);
+ XBT_DEBUG("**************************************************");
+ XBT_DEBUG("Double-DFS stateful without visited state init");
+ XBT_DEBUG("**************************************************");
+
+ mc_pair_t mc_initial_pair;
+ mc_state_t initial_graph_state;
+ smx_process_t process;
+ mc_snapshot_t init_snapshot;
+
+ MC_wait_for_requests();
+
+ MC_SET_RAW_MEM;
+
+ init_snapshot = xbt_new0(s_mc_snapshot_t, 1);
+
+ initial_graph_state = MC_state_pair_new();
+ xbt_swag_foreach(process, simix_global->process_list){
+ if(MC_process_is_enabled(process)){
+ MC_state_interleave_process(initial_graph_state, process);
+ }
+ }
+
+ reached_pairs = xbt_dynar_new(sizeof(char *), NULL);
+
+ MC_take_snapshot(init_snapshot);
+
+ MC_UNSET_RAW_MEM;
+
+ /* regarder dans l'automate toutes les transitions activables grâce à l'état initial du système
+ -> donnera les états initiaux de la propriété consistants avec l'état initial du système */
+
+ unsigned int cursor = 0;
+ //unsigned int cursor2 = 0;
+ xbt_state_t state = NULL;
+ //int res;
+ //xbt_transition_t transition_succ;
+ //xbt_dynar_t successors = xbt_dynar_new(sizeof(mc_pair_t), NULL);
+ //mc_pair_t pair_succ;
+
+ /*xbt_dynar_foreach(a->states, cursor, state){
+ if(state->type == -1){
+ xbt_dynar_foreach(state->out, cursor2, transition_succ){
+ res = MC_automaton_evaluate_label(a, transition_succ->label);
+
+ if(res == 1){
+
+ MC_SET_RAW_MEM;
+
+ mc_initial_pair = new_pair(init_snapshot, initial_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &mc_initial_pair);
+
+ MC_UNSET_RAW_MEM;
+
+ }
}
}
}
-
+
cursor = 0;
- xbt_dynar_foreach(elses, cursor, transition_succ){
- successor = transition_succ->dst;
- if(search_cycle == 1 && reached_dfs != NULL){
- if(strcmp(reached_dfs->id, successor->id) == 0){
- xbt_dynar_push(state_automaton_visited_dfs, &successor);
- printf("\n-*-*-*-*-*-*- ACCEPTANCE CYCLE -*-*-*-*-*-*-\n");
- printf("Visited states : \n");
- unsigned int cursor2 = 0;
- xbt_state_t visited_state = NULL;
- xbt_dynar_foreach(state_automaton_visited_dfs, cursor2, visited_state){
- printf("State : %s\n", visited_state->id);
- }
- exit(1);
- }
- }
- if(successor->visited == 0){
- successor->visited = 1;
- xbt_fifo_unshift(stack_automaton_dfs, successor);
- xbt_dynar_push(state_automaton_visited_dfs, &successor);
- MC_dfs(a, search_cycle);
- if(search_cycle == 0 && successor->type == 1){
- reached_dfs = successor;
- MC_dfs(a, 1);
- }
- }
- }
-
- xbt_fifo_shift(stack_automaton_dfs);
- }*/
-
-
-/* void MC_dfs(xbt_automaton_t a, int search_cycle, int restore){ */
-
-
-/* if(xbt_fifo_size(mc_snapshot_stack) == 0) */
-/* return; */
-
-/* if(restore == 1){ */
-/* MC_restore_snapshot(((mc_pairs_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_snapshot_stack)))->system_state); */
-/* MC_UNSET_RAW_MEM; */
-/* } */
-
-
-/* //XBT_DEBUG("Lpv length after restore snapshot: %lu", xbt_dynar_length(visited_pairs)); */
-
-/* /\* Get current state *\/ */
-/* mc_pairs_t current_pair = (mc_pairs_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_snapshot_stack)); */
-
-/* XBT_DEBUG("************************************************** ( search_cycle = %d )", search_cycle); */
-/* XBT_DEBUG("State : 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)); */
-
-/* //XBT_DEBUG("Reached pairs : %lu", xbt_dynar_length(reached_pairs)); */
+ cursor2 = 0;
+
+ xbt_dynar_foreach(a->states, cursor, state){
+ if(state->type == -1){
+ xbt_dynar_foreach(state->out, cursor2, transition_succ){
+ res = MC_automaton_evaluate_label(a, transition_succ->label);
+
+ if(res == 2){
+
+ MC_SET_RAW_MEM;
+
+ mc_initial_pair = new_pair(init_snapshot, initial_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &mc_initial_pair);
+
+ MC_UNSET_RAW_MEM;
+
+ }
+ }
+ }
+ }
+
+ cursor = 0;
+
+ if(xbt_dynar_length(successors) == 0){
+ xbt_dynar_foreach(a->states, cursor, state){
+ if(state->type == -1){
+ MC_SET_RAW_MEM;
+
+ mc_initial_pair = new_pair(init_snapshot, initial_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &mc_initial_pair);
+
+ MC_UNSET_RAW_MEM;
+ }
+ }
+ }*/
+
+ cursor = 0;
+ xbt_dynar_foreach(a->states, cursor, state){
+ if(state->type == -1){
+
+ MC_SET_RAW_MEM;
+ mc_initial_pair = new_pair(init_snapshot, initial_graph_state, state);
+ xbt_fifo_unshift(mc_stack_liveness_stateful, mc_initial_pair);
+ MC_UNSET_RAW_MEM;
+
+ if(cursor == 0){
+ MC_ddfs_stateful(a, 0, 0);
+ }else{
+ MC_ddfs_stateful(a, 0, 1);
+ }
+ }
+ }
+}
+
+
+void MC_ddfs_stateful(xbt_automaton_t a, int search_cycle, int restore){
+
+ smx_process_t process = 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){
+ xbt_swag_foreach(process, simix_global->process_list){
+ if(MC_process_is_enabled(process)){
+ MC_state_interleave_process(current_pair->graph_state, process);
+ }
+ }
+ }
+
+ 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));
+
+ mc_stats_pair->visited_pairs++;
+
+ int value;
+ mc_state_t next_graph_state = NULL;
+ smx_req_t req = NULL;
+ char *req_str;
+
+ mc_pair_t pair_succ;
+ xbt_transition_t transition_succ;
+ unsigned int cursor;
+ int res;
+
+ xbt_dynar_t successors = xbt_dynar_new(sizeof(mc_pair_t), NULL);
+
+ mc_pair_t next_pair;
+ mc_snapshot_t next_snapshot;
+ mc_snapshot_t current_snapshot;
-/* //sleep(1); */
-
-/* smx_process_t process = NULL; */
-/* int value; */
-/* mc_state_t next_graph_state = NULL; */
-/* smx_req_t req = NULL; */
-/* char *req_str; */
-
-/* mc_pairs_t pair_succ; */
-/* xbt_transition_t transition_succ; */
-/* unsigned int cursor; */
-/* int res; */
-/* //int enabled_transition = 0; */
-
-/* xbt_dynar_t elses = xbt_dynar_new(sizeof(mc_pairs_t), NULL); */
-/* xbt_dynar_t successors = xbt_dynar_new(sizeof(mc_pairs_t), NULL); */
-/* xbt_dynar_reset(all_successors); */
-
-/* mc_pairs_t next_pair; */
-/* mc_snapshot_t next_snapshot; */
-/* mc_snapshot_t current_snapshot; */
-/* while((req = MC_state_get_request(current_pair->graph_state, &value)) != NULL){ */
-
-/* //XBT_DEBUG("Current pair : %p (%u interleave)", current_pair, MC_state_interleave_size(current_pair->graph_state)+1); */
-/* //XBT_DEBUG("Visited pairs : %lu", xbt_dynar_length(visited_pairs)); */
+ while((req = MC_state_get_request(current_pair->graph_state, &value)) != NULL){
-/* MC_SET_RAW_MEM; */
-/* current_snapshot = xbt_new0(s_mc_snapshot_t, 1); */
-/* MC_take_snapshot(current_snapshot); */
-/* MC_UNSET_RAW_MEM; */
+ MC_SET_RAW_MEM;
+ current_snapshot = xbt_new0(s_mc_snapshot_t, 1);
+ MC_take_snapshot(current_snapshot);
+ MC_UNSET_RAW_MEM;
-/* /\* Debug information *\/ */
-/* if(XBT_LOG_ISENABLED(mc_dfs, xbt_log_priority_debug)){ */
-/* req_str = MC_request_to_string(req, value); */
-/* XBT_DEBUG("Execute: %s", req_str); */
-/* xbt_free(req_str); */
-/* } */
+ /* 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_free(req_str);
+ }
-/* MC_state_set_executed_request(current_pair->graph_state, req, value); */
-/* //mc_stats->executed_transitions++; */
+ MC_state_set_executed_request(current_pair->graph_state, req, value);
-/* /\* Answer the request *\/ */
-/* SIMIX_request_pre(req, value); */
+ /* Answer the request */
+ SIMIX_request_pre(req, value);
-/* /\* Wait for requests (schedules processes) *\/ */
-/* MC_wait_for_requests(); */
+ /* Wait for requests (schedules processes) */
+ MC_wait_for_requests();
-/* /\* Create the new expanded graph_state *\/ */
-/* MC_SET_RAW_MEM; */
+ /* Create the new expanded graph_state */
+ MC_SET_RAW_MEM;
-/* next_graph_state = MC_state_new(); */
+ next_graph_state = MC_state_pair_new();
-/* /\* Get enabled process and insert it in the interleave set of the next graph_state *\/ */
-/* xbt_swag_foreach(process, simix_global->process_list){ */
-/* if(MC_process_is_enabled(process)){ */
-/* MC_state_interleave_process(next_graph_state, process); */
-/* } */
-/* } */
-
-/* next_snapshot = xbt_new0(s_mc_snapshot_t, 1); */
-/* MC_take_snapshot(next_snapshot); */
+ /* Get enabled process and insert it in the interleave set of the next graph_state */
+ xbt_swag_foreach(process, simix_global->process_list){
+ if(MC_process_is_enabled(process)){
+ MC_state_interleave_process(next_graph_state, process);
+ }
+ }
+
+ next_snapshot = xbt_new0(s_mc_snapshot_t, 1);
+ MC_take_snapshot(next_snapshot);
-/* MC_UNSET_RAW_MEM; */
+ MC_UNSET_RAW_MEM;
-/* xbt_dynar_reset(elses); */
-/* xbt_dynar_reset(successors); */
+ xbt_dynar_reset(successors);
-/* cursor = 0; */
-/* xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){ */
+ cursor = 0;
+ xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){
+
+ res = MC_automaton_evaluate_label(a, transition_succ->label);
-/* res = MC_automaton_evaluate_label(a, transition_succ->label); */
+ MC_SET_RAW_MEM;
+
+ if(res == 1){ // enabled transition in automaton
+ next_pair = new_pair(next_snapshot,next_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &next_pair);
+ }
+
+ MC_UNSET_RAW_MEM;
+ }
+
+ cursor = 0;
+ xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){
-/* MC_SET_RAW_MEM; */
-/* next_pair = new_pair(next_snapshot,next_graph_state, transition_succ->dst); */
+ res = MC_automaton_evaluate_label(a, transition_succ->label);
-/* //XBT_DEBUG("Next pair : %p", next_pair); */
+ MC_SET_RAW_MEM;
-/* if(res == 1){ // enabled transition in automaton */
-/* xbt_dynar_push(successors, &next_pair); */
-/* //XBT_DEBUG("New Successors length : %lu", xbt_dynar_length(successors)); */
-/* }else{ */
-/* if(res == 2){ */
-/* xbt_dynar_push(elses, &next_pair); */
-/* //XBT_DEBUG("New Elses length : %lu", xbt_dynar_length(elses)); */
-/* } */
-/* } */
-
-/* MC_UNSET_RAW_MEM; */
-/* } */
+ if(res == 2){ // enabled transition in automaton
+ next_pair = new_pair(next_snapshot,next_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &next_pair);
+ }
+
+ MC_UNSET_RAW_MEM;
+ }
-/* if((xbt_dynar_length(successors) == 0) && (xbt_dynar_length(elses) == 0) ){ */
+ if(xbt_dynar_length(successors) == 0){
-/* MC_SET_RAW_MEM; */
-/* next_pair = new_pair(next_snapshot, next_graph_state, current_pair->automaton_state); */
-/* xbt_dynar_push(successors, &next_pair); */
-/* MC_UNSET_RAW_MEM; */
+ MC_SET_RAW_MEM;
+ next_pair = new_pair(next_snapshot, next_graph_state, current_pair->automaton_state);
+ xbt_dynar_push(successors, &next_pair);
+ MC_UNSET_RAW_MEM;
-/* } */
+ }
-/* //XBT_DEBUG("Successors length : %lu", xbt_dynar_length(successors)); */
-/* //XBT_DEBUG("Elses length : %lu", xbt_dynar_length(elses)); */
+ //XBT_DEBUG("Successors in automaton %lu", xbt_dynar_length(successors));
-/* if(xbt_dynar_length(successors) > 0){ */
+ cursor = 0;
+ xbt_dynar_foreach(successors, cursor, pair_succ){
+
+ //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)){
+ XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
+ XBT_INFO("| ACCEPTANCE CYCLE |");
+ XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
+ XBT_INFO("Counter-example that violates formula :");
+ MC_show_stack_liveness_stateful(mc_stack_liveness_stateful);
+ MC_dump_stack_liveness_stateful(mc_stack_liveness_stateful);
+ MC_print_statistics_pairs(mc_stats_pair);
+ exit(0);
+ }
+
+ mc_stats_pair->executed_transitions++;
+
+ MC_SET_RAW_MEM;
+ xbt_fifo_unshift(mc_stack_liveness_stateful, pair_succ);
+ MC_UNSET_RAW_MEM;
-/* cursor = 0; */
-/* xbt_dynar_foreach(successors, cursor, pair_succ){ */
-/* MC_SET_RAW_MEM; */
-/* xbt_dynar_push(all_successors, &pair_succ); */
-/* MC_UNSET_RAW_MEM; */
-/* } */
+ MC_ddfs_stateful(a, search_cycle, 0);
+ }
+
+ if((search_cycle == 0) && (current_pair->automaton_state->type == 1)){
-/* }else{ */
+ set_pair_reached(current_pair);
+ XBT_DEBUG("Acceptance pair : graph=%p, automaton=%p(%s)", current_pair->graph_state, current_pair->automaton_state, current_pair->automaton_state->id);
-/* cursor = 0; */
-/* xbt_dynar_foreach(elses, cursor, pair_succ){ */
-/* MC_SET_RAW_MEM; */
-/* xbt_dynar_push(all_successors, &pair_succ); */
-/* MC_UNSET_RAW_MEM; */
-/* } */
+ /*MC_restore_snapshot(current_pair->system_state);
+ MC_UNSET_RAW_MEM;
+
+ xbt_swag_foreach(process, simix_global->process_list){
+ if(MC_process_is_enabled(process)){
+ MC_state_interleave_process(current_pair->graph_state, process);
+ }
+ }
+
+ mc_pair_t top_pair = (mc_pair_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateful));
+ if((top_pair->graph_state != current_pair->graph_state) || (top_pair->automaton_state != current_pair->automaton_state)){
+ MC_SET_RAW_MEM;
+ xbt_fifo_unshift(mc_stack_liveness_stateful, current_pair);
+ MC_UNSET_RAW_MEM;
+ }*/
-/* } */
+ MC_ddfs_stateful(a, 1, 1);
+
+ }
-/* MC_restore_snapshot(current_snapshot); */
-/* MC_UNSET_RAW_MEM; */
-/* } */
+ if(MC_state_interleave_size(current_pair->graph_state) > 0){
+ MC_restore_snapshot(current_snapshot);
+ MC_UNSET_RAW_MEM;
+ }
+
+ }
+
+
+ MC_SET_RAW_MEM;
+ mc_pair_t top_pair = (mc_pair_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateful));
+ if((top_pair->graph_state == current_pair->graph_state) && (top_pair->automaton_state == current_pair->automaton_state)){
+ xbt_fifo_shift(mc_stack_liveness_stateful);
+ XBT_DEBUG("Pair (graph=%p, automaton =%p) shifted in stack", current_pair->graph_state, current_pair->automaton_state);
+ }
+ MC_UNSET_RAW_MEM;
+
+}
+
+
+
+/********************* Double-DFS stateless *******************/
+
+void MC_pair_stateless_delete(mc_pair_stateless_t pair){
+ xbt_free(pair->graph_state->proc_status);
+ xbt_free(pair->graph_state);
+ //xbt_free(pair->automaton_state); -> FIXME : à implémenter
+ xbt_free(pair);
+}
+
+mc_pair_stateless_t new_pair_stateless(mc_state_t sg, xbt_state_t st){
+ mc_pair_stateless_t p = NULL;
+ p = xbt_new0(s_mc_pair_stateless_t, 1);
+ p->automaton_state = st;
+ p->graph_state = sg;
+ mc_stats_pair->expanded_pairs++;
+ return p;
+}
+
+
+int reached_stateless(mc_pair_stateless_t pair){
+
+ char* hash_reached = malloc(sizeof(char)*160);
+ unsigned int c= 0;
+
+ MC_SET_RAW_MEM;
+ char *hash = malloc(sizeof(char)*160);
+ xbt_sha((char *)&pair, hash);
+ xbt_dynar_foreach(reached_pairs, c, hash_reached){
+ if(strcmp(hash, hash_reached) == 0){
+ MC_UNSET_RAW_MEM;
+ return 1;
+ }
+ }
+
+ MC_UNSET_RAW_MEM;
+ return 0;
+}
+
+void set_pair_stateless_reached(mc_pair_stateless_t pair){
+
+ if(reached_stateless(pair) == 0){
+
+ MC_SET_RAW_MEM;
+ char *hash = malloc(sizeof(char)*160) ;
+ xbt_sha((char *)&pair, hash);
+ xbt_dynar_push(reached_pairs, &hash);
+ MC_UNSET_RAW_MEM;
+ }
+
+}
+
+
+void MC_ddfs_stateless_init(xbt_automaton_t a){
+
+ XBT_DEBUG("**************************************************");
+ XBT_DEBUG("Double-DFS stateless init");
+ XBT_DEBUG("**************************************************");
+
+ mc_pair_stateless_t mc_initial_pair;
+ mc_state_t initial_graph_state;
+ smx_process_t process;
+
+ MC_wait_for_requests();
+
+ MC_SET_RAW_MEM;
+
+ initial_graph_state = MC_state_pair_new();
+ xbt_swag_foreach(process, simix_global->process_list){
+ if(MC_process_is_enabled(process)){
+ MC_state_interleave_process(initial_graph_state, process);
+ }
+ }
+
+ reached_pairs = xbt_dynar_new(sizeof(char *), NULL);
+
+ MC_UNSET_RAW_MEM;
+
+ /* regarder dans l'automate toutes les transitions activables grâce à l'état initial du système
+ -> donnera les états initiaux de la propriété consistants avec l'état initial du système */
+
+ unsigned int cursor = 0;
+ //unsigned int cursor2 = 0;
+ xbt_state_t state = NULL;
+ //int res;
+ //xbt_transition_t transition_succ;
+ //xbt_dynar_t successors = xbt_dynar_new(sizeof(mc_pair_stateless_t), NULL);
+ //xbt_dynar_t elses = xbt_dynar_new(sizeof(mc_pair_stateless_t), NULL);
+ //mc_pair_stateless_t pair_succ;
+
+ /*xbt_dynar_foreach(a->states, cursor, state){
+ if(state->type == -1){
+ xbt_dynar_foreach(state->out, cursor2, transition_succ){
+ res = MC_automaton_evaluate_label(a, transition_succ->label);
+
+ if(res == 1){
+
+ MC_SET_RAW_MEM;
+
+ mc_initial_pair = new_pair_stateless(initial_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &mc_initial_pair);
+
+ MC_UNSET_RAW_MEM;
+
+ }
+ }
+ }
+ }
+
+ cursor = 0;
+ cursor2 = 0;
+
+ xbt_dynar_foreach(a->states, cursor, state){
+ if(state->type == -1){
+ xbt_dynar_foreach(state->out, cursor2, transition_succ){
+ res = MC_automaton_evaluate_label(a, transition_succ->label);
+
+ if(res == 2){
+
+ MC_SET_RAW_MEM;
+
+ mc_initial_pair = new_pair_stateless(initial_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &mc_initial_pair);
+
+ MC_UNSET_RAW_MEM;
+
+ }
+ }
+ }
+ }
+
+
+ cursor = 0;
+
+ if((xbt_dynar_length(successors) == 0) && (xbt_dynar_length(elses) == 0)){
+ xbt_dynar_foreach(a->states, cursor, state){
+ if(state->type == -1){
+ MC_SET_RAW_MEM;
+
+ mc_initial_pair = new_pair_stateless(initial_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &mc_initial_pair);
+
+ MC_UNSET_RAW_MEM;
+ }
+ }
+ }
+
+
+ cursor = 0;
+ xbt_dynar_foreach(successors, cursor, pair_succ){
+ MC_SET_RAW_MEM;
+
+ xbt_fifo_unshift(mc_stack_liveness_stateless, pair_succ);
+
+ initial_snapshot = xbt_new0(s_mc_snapshot_t, 1);
+ MC_take_snapshot(initial_snapshot);
+
+ MC_UNSET_RAW_MEM;
+
+ if(cursor == 0){
+ MC_ddfs_stateless(a, 0, 0);
+ }else{
+ MC_ddfs_stateless(a, 0, 1);
+ }
+ } */
+
+ xbt_dynar_foreach(a->states, cursor, state){
+ if(state->type == -1){
+
+ 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_ddfs_stateless(a, 0);
+ }else{
+ MC_restore_snapshot(initial_snapshot);
+ MC_UNSET_RAW_MEM;
+ MC_ddfs_stateless(a, 0);
+ }
+ }
+ }
+}
+
+
+void MC_ddfs_stateless(xbt_automaton_t a, int search_cycle){
+
+ smx_process_t process = NULL;
+
+ if(xbt_fifo_size(mc_stack_liveness_stateless) == 0)
+ return;
+
+ //XBT_DEBUG("Stack size before restore %u", xbt_fifo_size(mc_stack_liveness_stateless));
+
+ /* Get current state */
+ mc_pair_stateless_t current_pair = (mc_pair_stateless_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateless));
-/* //XBT_DEBUG("All successors : %lu", xbt_dynar_length(all_successors)); */
+ 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));
+
+ mc_stats_pair->visited_pairs++;
+
+ int value;
+ mc_state_t next_graph_state = NULL;
+ smx_req_t req = NULL;
+ char *req_str;
+
+ mc_pair_stateless_t pair_succ;
+ xbt_transition_t transition_succ;
+ unsigned int cursor;
+ int res;
-/* cursor = 0; */
+ xbt_dynar_t successors;
-/* xbt_dynar_foreach(all_successors, cursor, pair_succ){ */
+ mc_pair_stateless_t next_pair;
+ mc_snapshot_t current_snap;
-/* if((search_cycle == 1) && (reached(pair_succ->graph_state, pair_succ->automaton_state) == 1)){ */
-/* XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*"); */
-/* XBT_INFO("| ACCEPTANCE CYCLE |"); */
-/* XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*"); */
-/* XBT_INFO("Counter-example that violates formula :"); */
-/* MC_show_snapshot_stack(mc_snapshot_stack); */
-/* MC_dump_snapshot_stack(mc_snapshot_stack); */
-/* exit(0); */
-/* } */
+
+ while((req = MC_state_get_request(current_pair->graph_state, &value)) != NULL){
+
+ MC_SET_RAW_MEM;
+ current_snap = xbt_new0(s_mc_snapshot_t, 1);
+ MC_take_snapshot(current_snap);
+ MC_UNSET_RAW_MEM;
+
+ //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)){
+ req_str = MC_request_to_string(req, value);
+ 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));
+ XBT_DEBUG("Execute: %s", req_str);
+ xbt_free(req_str);
+ }
+
+ //sleep(1);
+
+ MC_state_set_executed_request(current_pair->graph_state, req, value);
+
+ /* Answer the request */
+ SIMIX_request_pre(req, value);
+
+ /* Wait for requests (schedules processes) */
+ MC_wait_for_requests();
+
+
+ /* Create the new expanded graph_state */
+ MC_SET_RAW_MEM;
+
+ next_graph_state = MC_state_pair_new();
+
+ /* Get enabled process and insert it in the interleave set of the next graph_state */
+ xbt_swag_foreach(process, simix_global->process_list){
+ if(MC_process_is_enabled(process)){
+ MC_state_interleave_process(next_graph_state, process);
+ }
+ }
+
+ successors = xbt_dynar_new(sizeof(mc_pair_stateless_t), NULL);
+
+ 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(visited(pair_succ->graph_state, pair_succ->automaton_state, search_cycle) == 0){ */
+ if(res == 1){ // enabled transition in automaton
+ next_pair = new_pair_stateless(next_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &next_pair);
+ }
-/* //XBT_DEBUG("New pair in stack"); */
+ 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){ // enabled transition in automaton
+ next_pair = new_pair_stateless(next_graph_state, transition_succ->dst);
+ xbt_dynar_push(successors, &next_pair);
+ }
+
+ MC_UNSET_RAW_MEM;
+ }
+
+
+ if(xbt_dynar_length(successors) == 0){
+
+ MC_SET_RAW_MEM;
+ next_pair = new_pair_stateless(next_graph_state, current_pair->automaton_state);
+ xbt_dynar_push(successors, &next_pair);
+ MC_UNSET_RAW_MEM;
+
+ }
+
+ cursor = 0;
+ //XBT_DEBUG("Successors length %lu", xbt_dynar_length(successors));
+
+ xbt_dynar_foreach(successors, cursor, pair_succ){
+
+ if((search_cycle == 1) && (reached_stateless(pair_succ) == 1)){
+ 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);
+ }
+
+ mc_stats_pair->executed_transitions++;
-/* MC_SET_RAW_MEM; */
-/* xbt_fifo_unshift(mc_snapshot_stack, pair_succ); */
-/* MC_UNSET_RAW_MEM; */
+ MC_SET_RAW_MEM;
+ xbt_fifo_unshift(mc_stack_liveness_stateless, pair_succ);
+ MC_UNSET_RAW_MEM;
-/* set_pair_visited(pair_succ->graph_state, pair_succ->automaton_state, search_cycle); */
-/* MC_dfs(a, search_cycle, 1); */
+ MC_ddfs_stateless(a, search_cycle);
-/* if((search_cycle == 0) && (pair_succ->automaton_state->type == 1)){ */
-
-/* set_pair_reached(pair_succ->graph_state, pair_succ->automaton_state); */
-/* XBT_DEBUG("Acceptance pair : graph=%p, automaton=%p(%s)", pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id); */
-/* MC_dfs(a, 1, 1); */
+ //XBT_DEBUG("Stack size %u", xbt_fifo_size(mc_stack_liveness_stateless));
+ }
+
+ //xbt_dynar_reset(successors);
+
+ if((search_cycle == 0) && (current_pair->automaton_state->type == 1)){
+
+ set_pair_stateless_reached(current_pair);
+ XBT_DEBUG("Acceptance pair : graph=%p, automaton=%p(%s)", current_pair->graph_state, current_pair->automaton_state, current_pair->automaton_state->id);
+ MC_restore_snapshot(current_snap);
+ MC_UNSET_RAW_MEM;
-/* } */
-/* } */
+ xbt_swag_foreach(process, simix_global->process_list){
+ if(MC_process_is_enabled(process)){
+ MC_state_interleave_process(current_pair->graph_state, process);
+ }
+ }
+
+ MC_ddfs_stateless(a, 1);
+ }
+
+ if(MC_state_interleave_size(current_pair->graph_state) > 0){
+ //XBT_DEBUG("Backtracking to depth %u", xbt_fifo_size(mc_stack_liveness_stateless));
+ //MC_replay_liveness(mc_stack_liveness_stateless);
+ MC_restore_snapshot(current_snap);
+ MC_UNSET_RAW_MEM;
+ }
+
+ }
-/* } */
-/* MC_SET_RAW_MEM; */
-/* //remove_pair_reached(current_pair->graph_state); */
-/* xbt_fifo_shift(mc_snapshot_stack); */
-/* XBT_DEBUG("State (graph=%p, automaton =%p) shifted in snapshot_stack", current_pair->graph_state, current_pair->automaton_state); */
-/* MC_UNSET_RAW_MEM; */
+ MC_SET_RAW_MEM;
+ mc_pair_stateless_t top_pair = (mc_pair_stateless_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateless));
+ if((top_pair->graph_state == current_pair->graph_state) && (top_pair->automaton_state == current_pair->automaton_state)){
+ xbt_fifo_shift(mc_stack_liveness_stateless);
+ XBT_DEBUG("Pair (graph=%p, automaton =%p, search_cycle = %u) shifted in stack", current_pair->graph_state, current_pair->automaton_state, search_cycle);
+ }
+ MC_UNSET_RAW_MEM;
+ //XBT_DEBUG("Stack size after shift %u", xbt_fifo_size(mc_stack_liveness_stateless));
+
+}
-/* } */
