X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/41982e805766505052bbfc0f887ab4f9f1be560a..8ebfad14d820fc1220036ea6a6bb299d96e214f5:/src/mc/mc_liveness.c diff --git a/src/mc/mc_liveness.c b/src/mc/mc_liveness.c index 6e0bb8c52d..14b385e909 100644 --- a/src/mc/mc_liveness.c +++ b/src/mc/mc_liveness.c @@ -19,7 +19,46 @@ mc_pair_t new_pair(mc_snapshot_t sn, mc_state_t sg, xbt_state_t st){ } -int reached(xbt_automaton_t a){ +int snapshot_compare(mc_snapshot_t s1, mc_snapshot_t s2){ + + if(s1->num_reg != s2->num_reg) + return 1; + + int i, errors=0; + + 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(s1->regions[i]->type != s2->regions[i]->type) + return 1; + + if(s1->regions[i]->type == 0){ + if(mmalloc_compare_heap(s1->regions[i]->start_addr, s2->regions[i]->start_addr)){ + XBT_DEBUG("Different heap (mmalloc_compare)"); + //sleep(1); + errors++; + } + }else{ + if(memcmp(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){ + XBT_DEBUG("Different memcmp for data in libsimgrid (%d)", i); + //sleep(2); + errors++; + } + } + + + } + + return (errors>0); + +} + +int reached(xbt_automaton_t a, mc_snapshot_t s){ if(xbt_dynar_is_empty(reached_pairs)){ return 0; @@ -30,6 +69,7 @@ int reached(xbt_automaton_t a){ 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 = s; /* Get values of propositional symbols */ unsigned int cursor = 0; @@ -42,24 +82,15 @@ int reached(xbt_automaton_t a){ cursor = 0; mc_pair_reached_t pair_test; - //int size = xbt_dynar_length(pair->prop_ato); - //int i, d1, d2; - + //int (*compare_dynar)(const void*, const void*) = &propositional_symbols_compare_value; xbt_dynar_foreach(reached_pairs, cursor, pair_test){ - /*if(memcmp(pair_test->automaton_state, pair->automaton_state, sizeof(xbt_state_t)) == 0){ - for(i=0; i< size; i++){ - d1 = xbt_dynar_get_as(pair->prop_ato, i, int); - d2 = xbt_dynar_get_as(pair_test->prop_ato, i, int); - if(d1 == d2){ + if(automaton_state_compare(pair_test->automaton_state, pair->automaton_state) == 0){ + if(xbt_dynar_compare(pair_test->prop_ato, pair->prop_ato, propositional_symbols_compare_value) == 0){ + if(snapshot_compare(pair_test->system_state, pair->system_state) == 0){ MC_UNSET_RAW_MEM; return 1; } } - }*/ - - if(memcmp(pair_test, pair, sizeof(mc_pair_reached_t)) == 0){ - MC_UNSET_RAW_MEM; - return 1; } } @@ -69,9 +100,9 @@ int reached(xbt_automaton_t a){ } } -int set_pair_reached(xbt_automaton_t a){ +int set_pair_reached(xbt_automaton_t a, mc_snapshot_t s){ - if(reached(a) == 0){ + if(reached(a, s) == 0){ MC_SET_RAW_MEM; @@ -79,6 +110,7 @@ int set_pair_reached(xbt_automaton_t a){ 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 = s; /* Get values of propositional symbols */ unsigned int cursor = 0; @@ -151,61 +183,41 @@ int MC_automaton_evaluate_label(xbt_automaton_t a, xbt_exp_label_t l){ -/******************************* 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[41]; - xbt_sha((const char *)&p, hash); - xbt_dynar_push(visited_pairs, &hash); - 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); } -int 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[41]; - xbt_sha((const char *)&p, hash); - if(xbt_dynar_member(visited_pairs, hash)){ - MC_UNSET_RAW_MEM; - return 1; - }else{ - MC_UNSET_RAW_MEM; - return 0; - } +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; } -void MC_vddfs_stateful_init(xbt_automaton_t a){ + +void MC_ddfs_stateless_init(xbt_automaton_t a){ XBT_DEBUG("**************************************************"); - XBT_DEBUG("Double-DFS stateful with visited state init"); + XBT_DEBUG("Double-DFS stateless init"); XBT_DEBUG("**************************************************"); - mc_pair_t mc_initial_pair; - mc_state_t initial_graph_state; + mc_pair_stateless_t mc_initial_pair = NULL; + mc_state_t initial_graph_state = NULL; 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)){ @@ -213,70 +225,64 @@ void MC_vddfs_stateful_init(xbt_automaton_t a){ } } - visited_pairs = xbt_dynar_new(sizeof(char *), NULL); reached_pairs = xbt_dynar_new(sizeof(mc_pair_reached_t), NULL); - MC_take_snapshot(init_snapshot); + initial_snapshot = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot(initial_snapshot); MC_UNSET_RAW_MEM; unsigned int cursor = 0; - xbt_state_t state = NULL; + xbt_state_t state; 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_initial_pair = new_pair_stateless(initial_graph_state, state); + xbt_fifo_unshift(mc_stack_liveness_stateless, mc_initial_pair); MC_UNSET_RAW_MEM; - + if(cursor == 0){ - MC_vddfs_stateful(a, 0, 0); + MC_ddfs_stateless(a, 0, 0); }else{ - MC_restore_snapshot(init_snapshot); + MC_restore_snapshot(initial_snapshot); MC_UNSET_RAW_MEM; - MC_vddfs_stateful(a, 0, 0); + MC_ddfs_stateless(a, 0, 0); } }else{ - if(state->type == 2){ - - 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, 1, 0); - }else{ - MC_restore_snapshot(init_snapshot); - MC_UNSET_RAW_MEM; - MC_vddfs_stateful(a, 1, 0); - } - } + if(state->type == 2){ + + MC_SET_RAW_MEM; + mc_initial_pair = new_pair_stateless(initial_graph_state, state); + xbt_fifo_unshift(mc_stack_liveness_stateless, mc_initial_pair); + MC_UNSET_RAW_MEM; + + if(cursor == 0){ + MC_ddfs_stateless(a, 1, 0); + }else{ + MC_restore_snapshot(initial_snapshot); + MC_UNSET_RAW_MEM; + MC_ddfs_stateless(a, 1, 0); + } + } } } -} +} -void MC_vddfs_stateful(xbt_automaton_t a, int search_cycle, int restore){ - smx_process_t process = NULL; +void MC_ddfs_stateless(xbt_automaton_t a, int search_cycle, int replay){ + smx_process_t process; + mc_pair_stateless_t current_pair = NULL; - if(xbt_fifo_size(mc_stack_liveness_stateful) == 0) + if(xbt_fifo_size(mc_stack_liveness_stateless) == 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){ + if(replay == 1){ + MC_replay_liveness(mc_stack_liveness_stateless); + current_pair = (mc_pair_stateless_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateless)); xbt_swag_foreach(process, simix_global->process_list){ if(MC_process_is_enabled(process)){ MC_state_interleave_process(current_pair->graph_state, process); @@ -284,11 +290,16 @@ void MC_vddfs_stateful(xbt_automaton_t a, int search_cycle, int 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)); - + /* Get current pair */ + current_pair = (mc_pair_stateless_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateless)); + + /* Update current state in buchi 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)); + mc_stats_pair->visited_pairs++; int value; @@ -296,31 +307,28 @@ void MC_vddfs_stateful(xbt_automaton_t a, int search_cycle, int restore){ smx_req_t req = NULL; char *req_str; - xbt_transition_t transition_succ; - unsigned int cursor; + unsigned int cursor = 0; int res; - xbt_dynar_t successors = NULL; - - mc_pair_t next_pair = NULL; + mc_pair_stateless_t next_pair = NULL; + mc_pair_stateless_t pair_succ; mc_snapshot_t next_snapshot = NULL; mc_snapshot_t current_snapshot = NULL; - mc_pair_t pair_succ = NULL; - - MC_SET_RAW_MEM; - successors = xbt_dynar_new(sizeof(mc_pair_t), NULL); - MC_UNSET_RAW_MEM; + xbt_dynar_t successors = NULL; - while((req = MC_state_get_request(current_pair->graph_state, &value)) != NULL){ + MC_SET_RAW_MEM; + successors = xbt_dynar_new(sizeof(mc_pair_stateless_t), NULL); + MC_UNSET_RAW_MEM; + 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; - - + /* Debug information */ if(XBT_LOG_ISENABLED(mc_liveness, xbt_log_priority_debug)){ req_str = MC_request_to_string(req, value); @@ -328,8 +336,10 @@ void MC_vddfs_stateful(xbt_automaton_t a, int search_cycle, int restore){ xbt_free(req_str); } - MC_state_set_executed_request(current_pair->graph_state, req, value); + //sleep(1); + MC_state_set_executed_request(current_pair->graph_state, req, value); + /* Answer the request */ SIMIX_request_pre(req, value); @@ -337,147 +347,124 @@ void MC_vddfs_stateful(xbt_automaton_t a, int search_cycle, int restore){ MC_wait_for_requests(); - /* Create the new expanded graph_state */ MC_SET_RAW_MEM; + /* 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 */ 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); - + xbt_dynar_reset(successors); + if(snapshot_compare(current_snapshot,next_snapshot)){ + XBT_DEBUG("Different snapshot"); + //sleep(2); + + } + MC_UNSET_RAW_MEM; - cursor = 0; + + cursor= 0; xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){ res = MC_automaton_evaluate_label(a, transition_succ->label); - - if(res == 1){ + + if(res == 1){ // enabled transition in automaton MC_SET_RAW_MEM; - next_pair = new_pair(next_snapshot,next_graph_state, transition_succ->dst); + next_pair = new_pair_stateless(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){ - + res = MC_automaton_evaluate_label(a, transition_succ->label); - if(res == 2){ + if(res == 2){ // true transition in automaton MC_SET_RAW_MEM; - next_pair = new_pair(next_snapshot,next_graph_state, transition_succ->dst); + 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(next_snapshot, next_graph_state, current_pair->automaton_state); + 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)); - - cursor = 0; - 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); - 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);*/ - - if((search_cycle == 1) && (reached(a) == 1)){ + + if((search_cycle == 1) && (reached(a, next_snapshot) == 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_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); } - - XBT_DEBUG("Search visited pair %p : graph %p, automaton %p", pair_succ, pair_succ->graph_state, pair_succ->automaton_state); - 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); - MC_UNSET_RAW_MEM; + MC_SET_RAW_MEM; + xbt_fifo_unshift(mc_stack_liveness_stateless, pair_succ); + MC_UNSET_RAW_MEM; - MC_vddfs_stateful(a, search_cycle, 0); + MC_ddfs_stateless(a, search_cycle, 0); - //XBT_DEBUG("Pair (graph=%p, automaton=%p) expanded", pair_succ->graph_state, pair_succ->automaton_state); + + if((search_cycle == 0) && ((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){ - if((search_cycle == 0) && ((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){ + 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, next_snapshot); - 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_stateless, pair_succ); + MC_UNSET_RAW_MEM; + + MC_ddfs_stateless(a, 1, 1); + + if(res){ MC_SET_RAW_MEM; - xbt_fifo_unshift(mc_stack_liveness_stateful, pair_succ); + xbt_dynar_pop(reached_pairs, NULL); MC_UNSET_RAW_MEM; - - MC_vddfs_stateful(a, 1, 1); - - if(res){ - MC_SET_RAW_MEM; - xbt_dynar_pop(reached_pairs, NULL); - MC_UNSET_RAW_MEM; - } - } - - }else{ - - XBT_DEBUG("Pair already visited !"); } - } - if(MC_state_interleave_size(current_pair->graph_state) > 0){ - MC_restore_snapshot(current_snapshot); - MC_UNSET_RAW_MEM; - - } + XBT_DEBUG("Backtracking to depth %u", xbt_fifo_size(mc_stack_liveness_stateless)); + MC_replay_liveness(mc_stack_liveness_stateless); + } + } - MC_SET_RAW_MEM; - 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); + 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; - - } - - /********************* Double-DFS stateful without visited state *******************/ @@ -691,7 +678,7 @@ void MC_ddfs_stateful(xbt_automaton_t a, int search_cycle, int restore){ //XBT_DEBUG("Search visited pair : graph=%p, automaton=%p", pair_succ->graph_state, pair_succ->automaton_state); - if((search_cycle == 1) && (reached(a) == 1)){ + if((search_cycle == 1) && (reached(a, next_snapshot) == 1)){ XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*"); XBT_INFO("| ACCEPTANCE CYCLE |"); XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*"); @@ -713,7 +700,7 @@ void MC_ddfs_stateful(xbt_automaton_t a, int search_cycle, int restore){ if((search_cycle == 0) && ((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){ - int res = set_pair_reached(a); + int res = set_pair_reached(a, next_snapshot); 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; @@ -746,274 +733,3 @@ void MC_ddfs_stateful(xbt_automaton_t a, int search_cycle, int restore){ 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; -} - - - -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 = NULL; - mc_state_t initial_graph_state = NULL; - 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(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; - xbt_state_t state; - - 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); - MC_UNSET_RAW_MEM; - - if(cursor == 0){ - MC_ddfs_stateless(a, 0, 0); - }else{ - MC_restore_snapshot(initial_snapshot); - MC_UNSET_RAW_MEM; - MC_ddfs_stateless(a, 0, 0); - } - }else{ - if(state->type == 2){ - - MC_SET_RAW_MEM; - mc_initial_pair = new_pair_stateless(initial_graph_state, state); - xbt_fifo_unshift(mc_stack_liveness_stateless, mc_initial_pair); - MC_UNSET_RAW_MEM; - - if(cursor == 0){ - MC_ddfs_stateless(a, 1, 0); - }else{ - MC_restore_snapshot(initial_snapshot); - MC_UNSET_RAW_MEM; - MC_ddfs_stateless(a, 1, 0); - } - } - } - } - -} - - -void MC_ddfs_stateless(xbt_automaton_t a, int search_cycle, int replay){ - - smx_process_t process; - mc_pair_stateless_t current_pair = NULL; - - if(xbt_fifo_size(mc_stack_liveness_stateless) == 0) - return; - - if(replay == 1){ - MC_replay_liveness(mc_stack_liveness_stateless); - current_pair = (mc_pair_stateless_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness_stateless)); - xbt_swag_foreach(process, simix_global->process_list){ - if(MC_process_is_enabled(process)){ - MC_state_interleave_process(current_pair->graph_state, process); - } - } - } - - /* 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)); - - - mc_stats_pair->visited_pairs++; - - int value; - mc_state_t next_graph_state = NULL; - smx_req_t req = NULL; - char *req_str; - - xbt_transition_t transition_succ; - unsigned int cursor = 0; - int res; - - mc_pair_stateless_t next_pair = NULL; - mc_pair_stateless_t pair_succ; - - xbt_dynar_t successors = NULL; - - MC_SET_RAW_MEM; - successors = xbt_dynar_new(sizeof(mc_pair_stateless_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("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(); - - - MC_SET_RAW_MEM; - - /* 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 */ - xbt_swag_foreach(process, simix_global->process_list){ - if(MC_process_is_enabled(process)){ - MC_state_interleave_process(next_graph_state, process); - } - } - - xbt_dynar_reset(successors); - - 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); - - if(res == 1){ // enabled transition in automaton - MC_SET_RAW_MEM; - next_pair = new_pair_stateless(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){ - - res = MC_automaton_evaluate_label(a, transition_succ->label); - - if(res == 2){ // enabled transition in automaton - MC_SET_RAW_MEM; - 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_dynar_foreach(successors, cursor, pair_succ){ - - if((search_cycle == 1) && (reached(a) == 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_SET_RAW_MEM; - xbt_fifo_unshift(mc_stack_liveness_stateless, pair_succ); - MC_UNSET_RAW_MEM; - - MC_ddfs_stateless(a, search_cycle, 0); - - - if((search_cycle == 0) && ((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){ - - 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_UNSET_RAW_MEM; - - MC_ddfs_stateless(a, 1, 1); - - 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_stateless)); - MC_replay_liveness(mc_stack_liveness_stateless); - } - - } - - MC_SET_RAW_MEM; - 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; - -} -