X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ca2459a5a9672bb1764ee4a95e59c01c82dcea78..97aa0e698984b850ad794879f10e2978e4ec94fe:/src/mc/mc_liveness.c diff --git a/src/mc/mc_liveness.c b/src/mc/mc_liveness.c index 2ea1786d8e..ad69283f38 100644 --- a/src/mc/mc_liveness.c +++ b/src/mc/mc_liveness.c @@ -1,766 +1,844 @@ -#include "private.h" -#include "unistd.h" +/* Copyright (c) 2008-2012 Da SimGrid Team. All rights reserved. */ + +/* This program is free software; you can redistribute it and/or modify it + * under the terms of the license (GNU LGPL) which comes with this package. */ + +#include "mc_private.h" +#include 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 reached_pairs; -extern mc_snapshot_t initial_snapshot; +xbt_dynar_t reached_pairs_hash; +xbt_dynar_t visited_pairs; +xbt_dynar_t visited_pairs_hash; +xbt_dynar_t successors; -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->graph_state = sg; - p->num = max_pair; - max_pair++; - mc_stats_pair->expanded_pairs++; - return p; - -} +xbt_dynar_t hosts_table; -int reached(mc_pair_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); - if(xbt_dynar_member(reached_pairs, hash)){ - MC_UNSET_RAW_MEM; - return 1; - }else{ - MC_UNSET_RAW_MEM; - return 0; - } - } - -} +/* fast implementation of djb2 algorithm */ +unsigned int hash_region(char *str, int str_len){ -void set_pair_reached(mc_pair_t pair){ + int c; + register unsigned int hash = 5381; - if(reached(pair) == 0){ - MC_SET_RAW_MEM; - char hash[41]; - xbt_sha((const char *)&pair, hash); - xbt_dynar_push(reached_pairs, &hash); - MC_UNSET_RAW_MEM; + while (str_len--) { + c = *str++; + hash = ((hash << 5) + hash) + c; /* hash * 33 + c */ } -} + return hash; -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); } - -int MC_automaton_evaluate_label(xbt_automaton_t a, xbt_exp_label_t l){ +int data_program_region_compare(void *d1, void *d2, size_t size){ + int distance = 0; + int i; - 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)(); - } + for(i=0; ipair = pair; - p->search_cycle = sc; - char hash[41]; - xbt_sha((const char *)&p, hash); - xbt_dynar_push(visited_pairs, &hash); - MC_UNSET_RAW_MEM; + + fprintf(stderr, "Hamming distance between data program regions : %d\n", distance); + return distance; } -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; +int data_libsimgrid_region_compare(void *d1, void *d2, size_t size){ + int distance = 0; + int i; + + for(i=0; iprocess_list){ - if(MC_process_is_enabled(process)){ - MC_state_interleave_process(initial_graph_state, process); - } + + if(s1->num_reg != s2->num_reg){ + XBT_INFO("Different num_reg (s1 = %u, s2 = %u)", s1->num_reg, s2->num_reg); + return 1; } - visited_pairs = xbt_dynar_new(sizeof(char *), NULL); - reached_pairs = xbt_dynar_new(sizeof(char *), NULL); - - MC_take_snapshot(init_snapshot); + int i; + int errors = 0; - MC_UNSET_RAW_MEM; - - unsigned int cursor = 0; - xbt_state_t state = NULL; + for(i=0 ; i< s1->num_reg ; i++){ - 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(s1->regions[i]->type != s2->regions[i]->type){ + XBT_INFO("Different type of region"); + errors++; + } - if(cursor == 0){ - MC_vddfs_stateful(a, 0, 0); - }else{ - MC_restore_snapshot(init_snapshot); - MC_UNSET_RAW_MEM; - MC_vddfs_stateful(a, 0, 0); + switch(s1->regions[i]->type){ + case 0: + if(s1->regions[i]->size != s2->regions[i]->size){ + XBT_INFO("Different size of heap (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size); + errors++; } - }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(s1->regions[i]->start_addr != s2->regions[i]->start_addr){ + XBT_INFO("Different start addr of heap (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr); + errors++; + } + if(mmalloc_compare_heap(s1->regions[i]->data, s2->regions[i]->data, s_heap)){ + XBT_INFO("Different heap (mmalloc_compare)"); + errors++; + } + break; + case 1 : + if(s1->regions[i]->size != s2->regions[i]->size){ + XBT_INFO("Different size of libsimgrid (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size); + errors++; + } + if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){ + XBT_INFO("Different start addr of libsimgrid (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr); + errors++; + } + if(data_libsimgrid_region_compare(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){ + XBT_INFO("Different memcmp for data in libsimgrid"); + errors++; + } + break; + case 2 : + if(s1->regions[i]->size != s2->regions[i]->size){ + XBT_INFO("Different size of data program (s1 = %zu, s2 = %zu)", s1->regions[i]->size, s2->regions[i]->size); + errors++; + } + if(s1->regions[i]->start_addr != s2->regions[i]->start_addr){ + XBT_INFO("Different start addr of data program (s1 = %p, s2 = %p)", s1->regions[i]->start_addr, s2->regions[i]->start_addr); + errors++; + } + if(data_program_region_compare(s1->regions[i]->data, s2->regions[i]->data, s1->regions[i]->size) != 0){ + XBT_INFO("Different memcmp for data in program"); + errors++; + } + break; + default: + break; } - } + } + + return (errors > 0); + } +int reached(xbt_state_t st){ -void MC_vddfs_stateful(xbt_automaton_t a, int search_cycle, int restore){ - smx_process_t process = NULL; + if(xbt_dynar_is_empty(reached_pairs)){ + return 0; - if(xbt_fifo_size(mc_stack_liveness_stateful) == 0) - return; + }else{ - 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; - } + MC_SET_RAW_MEM; + mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot_liveness(sn); + + xbt_dynar_t prop_ato = xbt_dynar_new(sizeof(int), NULL); + int res; + int_f_void_t f; + + /* Get values of propositional symbols */ + unsigned int cursor = 0; + xbt_propositional_symbol_t ps = NULL; + xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){ + f = (int_f_void_t)ps->function; + res = (*f)(); + xbt_dynar_push_as(prop_ato, int, res); + } - /* 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)); + cursor = 0; + mc_pair_reached_t pair_test = NULL; - 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_dict_t current_rdv_points = SIMIX_get_rdv_points(); + + xbt_dynar_foreach(reached_pairs, cursor, pair_test){ + XBT_INFO("Pair reached #%d", pair_test->nb); + if(automaton_state_compare(pair_test->automaton_state, st) == 0){ + if(propositional_symbols_compare_value(pair_test->prop_ato, prop_ato) == 0){ + //XBT_INFO("Rdv points size %d - %d", xbt_dict_length(pair_test->rdv_points), xbt_dict_length(current_rdv_points)); + //if(xbt_dict_length(pair_test->rdv_points) == xbt_dict_length(current_rdv_points)){ + //if(rdv_points_compare(pair_test->rdv_points, current_rdv_points) == 0){ + if(snapshot_compare(pair_test->system_state, sn, std_heap) == 0){ + + MC_free_snapshot(sn); + xbt_dynar_reset(prop_ato); + xbt_free(prop_ato); + MC_UNSET_RAW_MEM; + return 1; + } + /* } + }else{ + XBT_INFO("Different size of rdv points (%d - %d)",xbt_dict_length(pair_test->rdv_points), xbt_dict_length(current_rdv_points) ); + }*/ + }else{ + XBT_INFO("Different values of propositional symbols"); + } + }else{ + XBT_INFO("Different automaton state"); } } + + MC_free_snapshot(sn); + xbt_dynar_reset(prop_ato); + xbt_free(prop_ato); + MC_UNSET_RAW_MEM; + return 0; + } +} - 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)); +int rdv_points_compare(xbt_dict_t d1, xbt_dict_t d2){ /* d1 = pair_test, d2 = current_pair */ + xbt_dict_cursor_t cursor_dict = NULL; + char *key; + char *data; + smx_rdv_t rdv1, rdv2; + xbt_fifo_item_t item1, item2; + smx_action_t action1, action2; + xbt_fifo_item_t item_req1, item_req2; + smx_simcall_t req1, req2; + int i=0; + int j=0; + + xbt_dict_foreach(d1, cursor_dict, key, data){ + rdv1 = (smx_rdv_t)data; + rdv2 = xbt_dict_get_or_null(d2, rdv1->name); + if(rdv2 == NULL){ + XBT_INFO("Rdv point unknown"); + return 1; + }else{ + if(xbt_fifo_size(rdv1->comm_fifo) != xbt_fifo_size(rdv2->comm_fifo)){ + XBT_INFO("Different total of actions in mailbox \"%s\" (%d - %d)", rdv1->name, xbt_fifo_size(rdv1->comm_fifo),xbt_fifo_size(rdv2->comm_fifo) ); + return 1; + }else{ + + XBT_INFO("Total of actions in mailbox \"%s\" : %d", rdv1->name, xbt_fifo_size(rdv1->comm_fifo)); + + item1 = xbt_fifo_get_first_item(rdv1->comm_fifo); + item2 = xbt_fifo_get_first_item(rdv2->comm_fifo); + + while(icomm_fifo)){ + action1 = (smx_action_t) xbt_fifo_get_item_content(item1); + action2 = (smx_action_t) xbt_fifo_get_item_content(item2); + + if(action1->type != action2->type){ + XBT_INFO("Different type of action"); + return 1; + } + + if(action1->state != action2->state){ + XBT_INFO("Different state of action"); + return 1; + } + + if(xbt_fifo_size(action1->simcalls) != xbt_fifo_size(action2->simcalls)){ + XBT_INFO("Different size of simcall list (%d - %d", xbt_fifo_size(action1->simcalls), xbt_fifo_size(action2->simcalls)); + return 1; + }else{ + + item_req1 = xbt_fifo_get_first_item(action1->simcalls); + item_req2 = xbt_fifo_get_first_item(action2->simcalls); + + while(jsimcalls)){ + + req1 = (smx_simcall_t) xbt_fifo_get_item_content(item_req1); + req2 = (smx_simcall_t) xbt_fifo_get_item_content(item_req2); + + if(req1->call != req2->call){ + XBT_INFO("Different simcall call in simcalls of action (%d - %d)", (int)req1->call, (int)req2->call); + return 1; + } + if(req1->issuer->pid != req2->issuer->pid){ + XBT_INFO("Different simcall issuer in simcalls of action (%lu- %lu)", req1->issuer->pid, req2->issuer->pid); + return 1; + } + + item_req1 = xbt_fifo_get_next_item(item_req1); + item_req2 = xbt_fifo_get_next_item(item_req2); + j++; + + } + } + + switch(action1->type){ + case 0: /* execution */ + case 1: /* parallel execution */ + if(strcmp(action1->execution.host->name, action2->execution.host->name) != 0) + return 1; + break; + case 2: /* comm */ + if(action1->comm.type != action2->comm.type) + return 1; + //XBT_INFO("Type of comm : %d", action1->comm.type); + + switch(action1->comm.type){ + case 0: /* SEND */ + if(action1->comm.src_proc->pid != action2->comm.src_proc->pid) + return 1; + if(strcmp(action1->comm.src_proc->smx_host->name, action2->comm.src_proc->smx_host->name) != 0) + return 1; + break; + case 1: /* RECEIVE */ + if(action1->comm.dst_proc->pid != action2->comm.dst_proc->pid) + return 1; + if(strcmp(action1->comm.dst_proc->smx_host->name, action2->comm.dst_proc->smx_host->name) != 0) + return 1; + break; + case 2: /* READY */ + if(action1->comm.src_proc->pid != action2->comm.src_proc->pid) + return 1; + if(strcmp(action1->comm.src_proc->smx_host->name, action2->comm.src_proc->smx_host->name) != 0) + return 1; + if(action1->comm.dst_proc->pid != action2->comm.dst_proc->pid) + return 1; + if(strcmp(action1->comm.dst_proc->smx_host->name, action2->comm.dst_proc->smx_host->name) != 0) + return 1; + break; + case 3: /* DONE */ + if(action1->comm.src_proc->pid != action2->comm.src_proc->pid) + return 1; + if(strcmp(action1->comm.src_proc->smx_host->name, action2->comm.src_proc->smx_host->name) != 0) + return 1; + if(action1->comm.dst_proc->pid != action2->comm.dst_proc->pid) + return 1; + if(strcmp(action1->comm.dst_proc->smx_host->name, action2->comm.dst_proc->smx_host->name) != 0) + return 1; + break; + + } /* end of switch on type of comm */ + + if(action1->comm.refcount != action2->comm.refcount) + return 1; + if(action1->comm.detached != action2->comm.detached) + return 1; + if(action1->comm.rate != action2->comm.rate) + return 1; + if(action1->comm.task_size != action2->comm.task_size) + return 1; + if(action1->comm.src_buff != action2->comm.src_buff) + return 1; + if(action1->comm.dst_buff != action2->comm.dst_buff) + return 1; + if(action1->comm.src_data != action2->comm.src_data) + return 1; + if(action1->comm.dst_data != action2->comm.dst_data) + return 1; + + break; + case 3: /* sleep */ + if(strcmp(action1->sleep.host->name, action2->sleep.host->name) != 0) + return 1; + break; + case 4: /* synchro */ + + break; + default: + break; + } + + item1 = xbt_fifo_get_next_item(item1); + item2 = xbt_fifo_get_next_item(item2); + i++; + } + } + } + } - mc_stats_pair->visited_pairs++; + return 0; + +} - int value; - mc_state_t next_graph_state = NULL; - smx_req_t req = NULL; - char *req_str; +void set_pair_reached(xbt_state_t st){ + + MC_SET_RAW_MEM; - xbt_transition_t transition_succ; - unsigned int cursor; + mc_pair_reached_t pair = NULL; + pair = xbt_new0(s_mc_pair_reached_t, 1); + pair->nb = xbt_dynar_length(reached_pairs) + 1; + pair->automaton_state = st; + pair->prop_ato = xbt_dynar_new(sizeof(int), NULL); + pair->system_state = xbt_new0(s_mc_snapshot_t, 1); + //pair->rdv_points = xbt_dict_new(); + MC_take_snapshot_liveness(pair->system_state); + + /* Get values of propositional symbols */ + unsigned int cursor = 0; + xbt_propositional_symbol_t ps = NULL; int res; + int_f_void_t f; - xbt_dynar_t successors = NULL; - - mc_pair_t next_pair = NULL; - mc_snapshot_t next_snapshot = NULL; - mc_snapshot_t current_snapshot = NULL; - mc_pair_t pair_succ = NULL;; - - - while((req = MC_state_get_request(current_pair->graph_state, &value)) != NULL){ + xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){ + f = (int_f_void_t)ps->function; + res = (*f)(); + xbt_dynar_push_as(pair->prop_ato, int, res); + } - 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); - XBT_DEBUG("Execute: %s", req_str); - xbt_free(req_str); + /*xbt_dict_t rdv_points = SIMIX_get_rdv_points(); + + xbt_dict_cursor_t cursor_dict = NULL; + char *key; + char *data; + xbt_fifo_item_t item; + smx_action_t action; + + xbt_dict_foreach(rdv_points, cursor_dict, key, data){ + smx_rdv_t new_rdv = xbt_new0(s_smx_rvpoint_t, 1); + new_rdv->name = strdup(((smx_rdv_t)data)->name); + new_rdv->comm_fifo = xbt_fifo_new(); + xbt_fifo_foreach(((smx_rdv_t)data)->comm_fifo, item, action, smx_action_t) { + smx_action_t a = xbt_new0(s_smx_action_t, 1); + memcpy(a, action, sizeof(s_smx_action_t)); + xbt_fifo_push(new_rdv->comm_fifo, a); + XBT_INFO("New action (type = %d, state = %d) in mailbox \"%s\"", action->type, action->state, key); + if(action->type==2) + XBT_INFO("Type of communication : %d, Ref count = %d", action->comm.type, action->comm.refcount); } + //new_rdv->comm_fifo = xbt_fifo_copy(((smx_rdv_t)data)->comm_fifo); + xbt_dict_set(pair->rdv_points, new_rdv->name, new_rdv, NULL); + }*/ + + xbt_dynar_push(reached_pairs, &pair); - MC_state_set_executed_request(current_pair->graph_state, req, value); - - /* Answer the request */ - SIMIX_request_pre(req, value); + MC_UNSET_RAW_MEM; + +} - /* Wait for requests (schedules processes) */ - MC_wait_for_requests(); +int reached_hash(xbt_state_t st){ - /* 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); - } - } - - next_snapshot = xbt_new0(s_mc_snapshot_t, 1); - MC_take_snapshot(next_snapshot); + if(xbt_dynar_is_empty(reached_pairs_hash)){ - successors = xbt_dynar_new(sizeof(mc_pair_t), NULL); + return 0; - MC_UNSET_RAW_MEM; - - cursor = 0; - xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){ + }else{ - res = MC_automaton_evaluate_label(a, transition_succ->label); - - if(res == 1){ - 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_SET_RAW_MEM; - cursor = 0; - xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){ + mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot_liveness(sn); - res = MC_automaton_evaluate_label(a, transition_succ->label); - - if(res == 2){ - 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; - } + int j; + unsigned int hash_regions[sn->num_reg]; + for(j=0; jnum_reg; j++){ + hash_regions[j] = hash_region(sn->regions[j]->data, sn->regions[j]->size); } - - 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; - + /* Get values of propositional symbols */ + xbt_dynar_t prop_ato = xbt_dynar_new(sizeof(int), NULL); + unsigned int cursor = 0; + xbt_propositional_symbol_t ps = NULL; + int res; + int_f_void_t f; + + xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){ + f = (int_f_void_t)ps->function; + res = (*f)(); + xbt_dynar_push_as(prop_ato, int, res); } + mc_pair_reached_hash_t pair_test = NULL; - //XBT_DEBUG("Successors length %lu", xbt_dynar_length(successors)); + int region_diff = 0; 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(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); - } - - 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++; - - 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); - - //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))){ - - 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); - - MC_SET_RAW_MEM; - xbt_fifo_unshift(mc_stack_liveness_stateful, pair_succ); - MC_UNSET_RAW_MEM; - - MC_vddfs_stateful(a, 1, 1); - - //MC_SET_RAW_MEM; - xbt_dynar_pop(reached_pairs, NULL); - //MC_UNSET_RAW_MEM; + xbt_dynar_foreach(reached_pairs_hash, cursor, pair_test){ + + if(automaton_state_compare(pair_test->automaton_state, st) == 0){ + if(propositional_symbols_compare_value(pair_test->prop_ato, prop_ato) == 0){ + for(j=0 ; j< sn->num_reg ; j++){ + if(hash_regions[j] != pair_test->hash_regions[j]){ + region_diff++; + } + } + if(region_diff == 0){ + MC_free_snapshot(sn); + xbt_dynar_reset(prop_ato); + xbt_free(prop_ato); + MC_UNSET_RAW_MEM; + return 1; + }else{ + XBT_INFO("Different snapshot"); + } + }else{ + XBT_INFO("Different values of propositional symbols"); } - }else{ - - XBT_DEBUG("Pair already visited !"); + XBT_INFO("Different automaton state"); } + region_diff = 0; } - - if(MC_state_interleave_size(current_pair->graph_state) > 0){ - MC_restore_snapshot(current_snapshot); - MC_UNSET_RAW_MEM; - - } + MC_free_snapshot(sn); + xbt_dynar_reset(prop_ato); + xbt_free(prop_ato); + MC_UNSET_RAW_MEM; + return 0; + } +} - +void set_pair_reached_hash(xbt_state_t st){ + 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); - MC_UNSET_RAW_MEM; + mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot_liveness(sn); + + mc_pair_reached_hash_t pair = NULL; + pair = xbt_new0(s_mc_pair_reached_hash_t, 1); + pair->automaton_state = st; + pair->prop_ato = xbt_dynar_new(sizeof(int), NULL); + pair->hash_regions = malloc(sizeof(unsigned int) * sn->num_reg); + int i; -} - - + for(i=0 ; i< sn->num_reg ; i++){ + pair->hash_regions[i] = hash_region(sn->regions[i]->data, sn->regions[i]->size); + } + + /* Get values of propositional symbols */ + unsigned int cursor = 0; + xbt_propositional_symbol_t ps = NULL; + int res; + int_f_void_t f; -/********************* Double-DFS stateful without visited state *******************/ + xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){ + f = (int_f_void_t)ps->function; + res = (*f)(); + xbt_dynar_push_as(pair->prop_ato, int, res); + } + + xbt_dynar_push(reached_pairs_hash, &pair); + MC_free_snapshot(sn); + + MC_UNSET_RAW_MEM; + +} -void MC_ddfs_stateful_init(xbt_automaton_t a){ - 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(); +int visited(xbt_state_t st, int sc){ - MC_SET_RAW_MEM; - init_snapshot = xbt_new0(s_mc_snapshot_t, 1); + if(xbt_dynar_is_empty(visited_pairs)){ - 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); - } - } + return 0; - reached_pairs = xbt_dynar_new(sizeof(char *), NULL); + }else{ - MC_take_snapshot(init_snapshot); + MC_SET_RAW_MEM; - MC_UNSET_RAW_MEM; + mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot_liveness(sn); - unsigned int cursor = 0; - xbt_state_t state = NULL; + xbt_dynar_t prop_ato = xbt_dynar_new(sizeof(int), NULL); - 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; + /* Get values of propositional symbols */ + unsigned int cursor = 0; + xbt_propositional_symbol_t ps = NULL; + int res; + int_f_void_t f; + + xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){ + f = (int_f_void_t)ps->function; + res = (*f)(); + xbt_dynar_push_as(prop_ato, int, res); + } - if(cursor == 0){ - MC_ddfs_stateful(a, 0, 0); + cursor = 0; + mc_pair_visited_t pair_test = NULL; + + xbt_dynar_foreach(visited_pairs, cursor, pair_test){ + if(pair_test->search_cycle == sc) { + if(automaton_state_compare(pair_test->automaton_state, st) == 0){ + if(propositional_symbols_compare_value(pair_test->prop_ato, prop_ato) == 0){ + if(snapshot_compare(pair_test->system_state, sn, std_heap) == 0){ + + MC_free_snapshot(sn); + xbt_dynar_reset(prop_ato); + xbt_free(prop_ato); + MC_UNSET_RAW_MEM; + + return 1; + + }else{ + XBT_INFO("Different snapshot"); + } + }else{ + XBT_INFO("Different values of propositional symbols"); + } + }else{ + XBT_INFO("Different automaton state"); + } }else{ - MC_restore_snapshot(init_snapshot); - MC_UNSET_RAW_MEM; - MC_ddfs_stateful(a, 0, 0); + XBT_INFO("Different value of search_cycle"); } - }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_ddfs_stateful(a, 1, 0); - }else{ - MC_restore_snapshot(init_snapshot); - MC_UNSET_RAW_MEM; - MC_ddfs_stateful(a, 1, 0); - } - } } - } -} - - -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_free_snapshot(sn); + xbt_dynar_reset(prop_ato); + xbt_free(prop_ato); MC_UNSET_RAW_MEM; + return 0; + } +} - /* 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 visited_hash(xbt_state_t st, int sc){ - 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; + if(xbt_dynar_is_empty(visited_pairs_hash)){ - mc_pair_t next_pair; - mc_snapshot_t next_snapshot; - mc_snapshot_t current_snapshot; + return 0; - //sleep(1); - - - while((req = MC_state_get_request(current_pair->graph_state, &value)) != NULL){ + }else{ 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); - XBT_DEBUG("%u Execute: %s", search_cycle, req_str); - xbt_free(req_str); - } - - MC_state_set_executed_request(current_pair->graph_state, req, value); - /* Answer the request */ - SIMIX_request_pre(req, value); + mc_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot_liveness(sn); - /* 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); - } + int j; + unsigned int hash_regions[sn->num_reg]; + for(j=0; jnum_reg; j++){ + hash_regions[j] = hash_region(sn->regions[j]->data, sn->regions[j]->size); } - next_snapshot = xbt_new0(s_mc_snapshot_t, 1); - MC_take_snapshot(next_snapshot); - - successors = xbt_dynar_new(sizeof(mc_pair_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(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; + /* Get values of propositional symbols */ + xbt_dynar_t prop_ato = xbt_dynar_new(sizeof(int), NULL); + unsigned int cursor = 0; + xbt_propositional_symbol_t ps = NULL; + int res; + int_f_void_t f; + + xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){ + f = (int_f_void_t)ps->function; + res = (*f)(); + xbt_dynar_push_as(prop_ato, int, res); } - cursor = 0; - xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){ + mc_pair_visited_hash_t pair_test = NULL; - res = MC_automaton_evaluate_label(a, transition_succ->label); + int region_diff = 0; + cursor = 0; - MC_SET_RAW_MEM; - - if(res == 2){ // transition always enabled in automaton - next_pair = new_pair(next_snapshot,next_graph_state, transition_succ->dst); - xbt_dynar_push(successors, &next_pair); + xbt_dynar_foreach(visited_pairs_hash, cursor, pair_test){ + + if(pair_test->search_cycle == sc) { + if(automaton_state_compare(pair_test->automaton_state, st) == 0){ + if(propositional_symbols_compare_value(pair_test->prop_ato, prop_ato) == 0){ + for(j=0 ; j< sn->num_reg ; j++){ + if(hash_regions[j] != pair_test->hash_regions[j]){ + region_diff++; + } + } + if(region_diff == 0){ + MC_free_snapshot(sn); + xbt_dynar_reset(prop_ato); + xbt_free(prop_ato); + MC_UNSET_RAW_MEM; + return 1; + }else{ + //XBT_INFO("Different snapshot"); + } + }else{ + //XBT_INFO("Different values of propositional symbols"); + } + }else{ + //XBT_INFO("Different automaton state"); + } + }else{ + //XBT_INFO("Different value of search_cycle"); } - - 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_UNSET_RAW_MEM; - + + region_diff = 0; } + + MC_free_snapshot(sn); + xbt_dynar_reset(prop_ato); + xbt_free(prop_ato); + MC_UNSET_RAW_MEM; + return 0; + + } +} - //XBT_DEBUG("Successors in automaton %lu", xbt_dynar_length(successors)); +void set_pair_visited_hash(xbt_state_t st, int sc){ + + MC_SET_RAW_MEM; - 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_snapshot_t sn = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot_liveness(sn); - MC_SET_RAW_MEM; - xbt_fifo_unshift(mc_stack_liveness_stateful, pair_succ); - MC_UNSET_RAW_MEM; + mc_pair_visited_hash_t pair = NULL; + pair = xbt_new0(s_mc_pair_visited_hash_t, 1); + pair->automaton_state = st; + pair->prop_ato = xbt_dynar_new(sizeof(int), NULL); + pair->search_cycle = sc; + pair->hash_regions = malloc(sizeof(unsigned int) * sn->num_reg); + + int i; + + for(i=0 ; i< sn->num_reg ; i++){ + pair->hash_regions[i] = hash_region(sn->regions[i]->data, sn->regions[i]->size); + } + + /* Get values of propositional symbols */ + unsigned int cursor = 0; + xbt_propositional_symbol_t ps = NULL; + int res; + int_f_void_t f; - MC_ddfs_stateful(a, search_cycle, 0); - + xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){ + f = (int_f_void_t)ps->function; + res = (*f)(); + xbt_dynar_push_as(pair->prop_ato, int, res); + } + + xbt_dynar_push(visited_pairs_hash, &pair); + + MC_free_snapshot(sn); + + MC_UNSET_RAW_MEM; - 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); - - MC_SET_RAW_MEM; - xbt_fifo_unshift(mc_stack_liveness_stateful, pair_succ); - MC_UNSET_RAW_MEM; - - MC_ddfs_stateful(a, 1, 1); +void set_pair_visited(xbt_state_t st, int sc){ - //MC_SET_RAW_MEM; - xbt_dynar_pop(reached_pairs, NULL); - //MC_UNSET_RAW_MEM; - } + + MC_SET_RAW_MEM; + + mc_pair_visited_t pair = NULL; + pair = xbt_new0(s_mc_pair_visited_t, 1); + pair->automaton_state = st; + pair->prop_ato = xbt_dynar_new(sizeof(int), NULL); + pair->search_cycle = sc; + pair->system_state = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot_liveness(pair->system_state); - } - if(MC_state_interleave_size(current_pair->graph_state) > 0){ - MC_restore_snapshot(current_snapshot); - MC_UNSET_RAW_MEM; - } + /* Get values of propositional symbols */ + unsigned int cursor = 0; + xbt_propositional_symbol_t ps = NULL; + int res; + int_f_void_t f; + xbt_dynar_foreach(automaton->propositional_symbols, cursor, ps){ + f = (int_f_void_t)ps->function; + res = (*f)(); + xbt_dynar_push_as(pair->prop_ato, int, res); } - - 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_dynar_push(visited_pairs, &pair); + MC_UNSET_RAW_MEM; + + +} +void MC_pair_delete(mc_pair_t pair){ + xbt_free(pair->graph_state->proc_status); + xbt_free(pair->graph_state); + xbt_free(pair); } +int MC_automaton_evaluate_label(xbt_exp_label_t l){ + + switch(l->type){ + case 0 : { + int left_res = MC_automaton_evaluate_label(l->u.or_and.left_exp); + int right_res = MC_automaton_evaluate_label(l->u.or_and.right_exp); + return (left_res || right_res); + } + case 1 : { + int left_res = MC_automaton_evaluate_label(l->u.or_and.left_exp); + int right_res = MC_automaton_evaluate_label(l->u.or_and.right_exp); + return (left_res && right_res); + } + case 2 : { + int res = MC_automaton_evaluate_label(l->u.exp_not); + return (!res); + } + case 3 : { + unsigned int cursor = 0; + xbt_propositional_symbol_t p = NULL; + int_f_void_t f; + xbt_dynar_foreach(automaton->propositional_symbols, cursor, p){ + if(strcmp(p->pred, l->u.predicat) == 0){ + f = (int_f_void_t)p->function; + return (*f)(); + } + } + return -1; + } + case 4 : { + return 2; + } + default : + return -1; + } +} + + /********************* 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 new_pair_stateless(mc_state_t sg, xbt_state_t st, int r){ mc_pair_stateless_t p = NULL; p = xbt_new0(s_mc_pair_stateless_t, 1); p->automaton_state = st; p->graph_state = sg; + p->requests = r; mc_stats_pair->expanded_pairs++; return p; } +void MC_ddfs_init(void){ -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){ + XBT_INFO("**************************************************"); + XBT_INFO("Double-DFS init"); + XBT_INFO("**************************************************"); - 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)){ @@ -768,50 +846,54 @@ 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); + //reached_pairs_hash = xbt_dynar_new(sizeof(mc_pair_reached_hash_t), NULL); + //visited_pairs = xbt_dynar_new(sizeof(mc_pair_visited_t), NULL); + visited_pairs_hash = xbt_dynar_new(sizeof(mc_pair_visited_hash_t), NULL); + successors = xbt_dynar_new(sizeof(mc_pair_stateless_t), NULL); + + /* Save the initial state */ + initial_snapshot_liveness = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot_liveness(initial_snapshot_liveness); + MC_UNSET_RAW_MEM; unsigned int cursor = 0; xbt_state_t state; - xbt_dynar_foreach(a->states, cursor, state){ + xbt_dynar_foreach(automaton->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_initial_pair = new_pair_stateless(initial_graph_state, state, MC_state_interleave_size(initial_graph_state)); + xbt_fifo_unshift(mc_stack_liveness, mc_initial_pair); MC_UNSET_RAW_MEM; - if(cursor == 0){ - MC_ddfs_stateless(a, 0, 0); - }else{ - MC_restore_snapshot(initial_snapshot); + if(cursor != 0){ + MC_restore_snapshot(initial_snapshot_liveness); MC_UNSET_RAW_MEM; - MC_ddfs_stateless(a, 0, 0); } + + MC_ddfs(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); - - initial_snapshot = xbt_new0(s_mc_snapshot_t, 1); - MC_take_snapshot(initial_snapshot); - + mc_initial_pair = new_pair_stateless(initial_graph_state, state, MC_state_interleave_size(initial_graph_state)); + xbt_fifo_unshift(mc_stack_liveness, mc_initial_pair); MC_UNSET_RAW_MEM; - - if(cursor == 0){ - MC_ddfs_stateless(a, 1, 0); - }else{ - MC_restore_snapshot(initial_snapshot); + + set_pair_reached(state); + //set_pair_reached_hash(state); + + if(cursor != 0){ + MC_restore_snapshot(initial_snapshot_liveness); MC_UNSET_RAW_MEM; - MC_ddfs_stateless(a, 1, 0); } + + MC_ddfs(1); + } } } @@ -819,49 +901,32 @@ void MC_ddfs_stateless_init(xbt_automaton_t a){ } -void MC_ddfs_stateless(xbt_automaton_t a, int search_cycle, int replay){ +void MC_ddfs(int search_cycle){ smx_process_t process; mc_pair_stateless_t current_pair = NULL; - if(xbt_fifo_size(mc_stack_liveness_stateless) == 0) + if(xbt_fifo_size(mc_stack_liveness) == 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)); - - 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)); + /* Get current pair */ + current_pair = (mc_pair_stateless_t)xbt_fifo_get_item_content(xbt_fifo_get_first_item(mc_stack_liveness)); - //sleep(1); - + /* Update current state in buchi automaton */ + automaton->current_state = current_pair->automaton_state; + + + XBT_INFO("********************* ( Depth = %d, search_cycle = %d )", xbt_fifo_size(mc_stack_liveness), search_cycle); + XBT_INFO("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++; - /*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); - }*/ + //sleep(1); int value; mc_state_t next_graph_state = NULL; - smx_req_t req = NULL; + smx_simcall_t req = NULL; char *req_str; xbt_transition_t transition_succ; @@ -871,144 +936,404 @@ void MC_ddfs_stateless(xbt_automaton_t a, int search_cycle, int replay){ 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; + if(xbt_fifo_size(mc_stack_liveness) < MAX_DEPTH_LIVENESS){ - 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)); + //set_pair_visited(current_pair->automaton_state, search_cycle); + set_pair_visited_hash(current_pair->automaton_state, search_cycle); - /* 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); - } + //XBT_INFO("Visited pairs : %lu", xbt_dynar_length(visited_pairs)); + XBT_INFO("Visited pairs : %lu", xbt_dynar_length(visited_pairs_hash)); - //sleep(1); + if(current_pair->requests > 0){ - MC_state_set_executed_request(current_pair->graph_state, req, value); - - /* Answer the request */ - SIMIX_request_pre(req, value); + while((req = MC_state_get_request(current_pair->graph_state, &value)) != NULL){ + + /* Debug information */ - /* Wait for requests (schedules processes) */ - MC_wait_for_requests(); + req_str = MC_request_to_string(req, value); + XBT_INFO("Execute: %s", req_str); + xbt_free(req_str); + MC_state_set_executed_request(current_pair->graph_state, req, value); - MC_SET_RAW_MEM; - /* Create the new expanded graph_state */ + /* Answer the request */ + SIMIX_simcall_pre(req, value); - next_graph_state = MC_state_pair_new(); + /* Wait for requests (schedules processes) */ + MC_wait_for_requests(); - /* 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){ + MC_SET_RAW_MEM; - res = MC_automaton_evaluate_label(a, transition_succ->label); + /* 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); - 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; + cursor= 0; + xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){ + + res = MC_automaton_evaluate_label(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, MC_state_interleave_size(next_graph_state)); + xbt_dynar_push(successors, &next_pair); + MC_UNSET_RAW_MEM; + } + + } + + cursor = 0; - xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){ + 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(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(res == 2){ // true transition in automaton + MC_SET_RAW_MEM; + next_pair = new_pair_stateless(next_graph_state, transition_succ->dst, MC_state_interleave_size(next_graph_state)); + 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){ + + if((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2)){ + + if(reached(pair_succ->automaton_state)){ + //if(reached_hash(pair_succ->automaton_state)){ + + XBT_INFO("Next pair (depth = %d, %u interleave) already reached !", xbt_fifo_size(mc_stack_liveness) + 1, MC_state_interleave_size(pair_succ->graph_state)); + + XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*"); + XBT_INFO("| ACCEPTANCE CYCLE |"); + XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*"); + XBT_INFO("Counter-example that violates formula :"); + MC_show_stack_liveness(mc_stack_liveness); + MC_dump_stack_liveness(mc_stack_liveness); + MC_print_statistics_pairs(mc_stats_pair); + exit(0); + + }else{ + + XBT_INFO("Next pair (depth =%d) -> Acceptance pair : graph=%p, automaton=%p(%s)", xbt_fifo_size(mc_stack_liveness) + 1, pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id); + + set_pair_reached(pair_succ->automaton_state); + //set_pair_reached_hash(pair_succ->automaton_state); + + XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs)); + //XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs_hash)); + + MC_SET_RAW_MEM; + xbt_fifo_unshift(mc_stack_liveness, pair_succ); + MC_UNSET_RAW_MEM; + + MC_ddfs(search_cycle); + + } + + }else{ + + if(!visited_hash(pair_succ->automaton_state, search_cycle)){ + //if(!visited(pair_succ->automaton_state, search_cycle)){ + + MC_SET_RAW_MEM; + xbt_fifo_unshift(mc_stack_liveness, pair_succ); + MC_UNSET_RAW_MEM; + + MC_ddfs(search_cycle); + + }else{ + + XBT_INFO("Next pair already visited ! "); + + } + + } + + }else{ + + if(((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){ - cursor = 0; + XBT_INFO("Next pair (depth =%d) -> Acceptance pair : graph=%p, automaton=%p(%s)", xbt_fifo_size(mc_stack_liveness) + 1, pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id); + + set_pair_reached(pair_succ->automaton_state); + //set_pair_reached_hash(pair_succ->automaton_state); - //XBT_DEBUG("Successors length %lu", xbt_dynar_length(successors)); + search_cycle = 1; - 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); - } + XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs)); + //XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs_hash)); + + } + + if(!visited_hash(pair_succ->automaton_state, search_cycle)){ + //if(!visited(pair_succ->automaton_state, search_cycle)){ + + MC_SET_RAW_MEM; + xbt_fifo_unshift(mc_stack_liveness, pair_succ); + MC_UNSET_RAW_MEM; + + MC_ddfs(search_cycle); + + }else{ + + XBT_INFO("Next pair already visited ! "); + + } + + } + + + /* Restore system before checking others successors */ + if(cursor != (xbt_dynar_length(successors) - 1)) + MC_replay_liveness(mc_stack_liveness, 1); + + } + + if(MC_state_interleave_size(current_pair->graph_state) > 0){ + XBT_INFO("Backtracking to depth %d", xbt_fifo_size(mc_stack_liveness)); + MC_replay_liveness(mc_stack_liveness, 0); + } + } + + + }else{ /*No request to execute, search evolution in Büchi automaton */ + MC_SET_RAW_MEM; - xbt_fifo_unshift(mc_stack_liveness_stateless, pair_succ); + + /* Create the new expanded graph_state */ + next_graph_state = MC_state_pair_new(); + + xbt_dynar_reset(successors); + MC_UNSET_RAW_MEM; - MC_ddfs_stateless(a, search_cycle, 0); - + cursor= 0; + xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){ - //XBT_DEBUG("Stack size %u", xbt_fifo_size(mc_stack_liveness_stateless)); + res = MC_automaton_evaluate_label(transition_succ->label); - if((search_cycle == 0) && ((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){ + if(res == 1){ // enabled transition in automaton + MC_SET_RAW_MEM; + next_pair = new_pair_stateless(next_graph_state, transition_succ->dst, MC_state_interleave_size(next_graph_state)); + xbt_dynar_push(successors, &next_pair); + MC_UNSET_RAW_MEM; + } - 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); + } - MC_SET_RAW_MEM; - xbt_fifo_unshift(mc_stack_liveness_stateless, pair_succ); - MC_UNSET_RAW_MEM; + cursor = 0; + + xbt_dynar_foreach(current_pair->automaton_state->out, cursor, transition_succ){ - MC_ddfs_stateless(a, 1, 1); + res = MC_automaton_evaluate_label(transition_succ->label); - MC_SET_RAW_MEM; - xbt_dynar_pop(reached_pairs, NULL); - MC_UNSET_RAW_MEM; + if(res == 2){ // true transition in automaton + MC_SET_RAW_MEM; + next_pair = new_pair_stateless(next_graph_state, transition_succ->dst, MC_state_interleave_size(next_graph_state)); + xbt_dynar_push(successors, &next_pair); + MC_UNSET_RAW_MEM; + } + + } + + cursor = 0; + + xbt_dynar_foreach(successors, cursor, pair_succ){ + + if(search_cycle == 1){ + + if((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2)){ + + if(reached(pair_succ->automaton_state)){ + //if(reached_hash(pair_succ->automaton_state)){ + + XBT_INFO("Next pair (depth = %d) already reached !", xbt_fifo_size(mc_stack_liveness) + 1); + + XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*"); + XBT_INFO("| ACCEPTANCE CYCLE |"); + XBT_INFO("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*"); + XBT_INFO("Counter-example that violates formula :"); + MC_show_stack_liveness(mc_stack_liveness); + MC_dump_stack_liveness(mc_stack_liveness); + MC_print_statistics_pairs(mc_stats_pair); + exit(0); + + }else{ + + XBT_INFO("Next pair (depth = %d) -> Acceptance pair : graph=%p, automaton=%p(%s)", xbt_fifo_size(mc_stack_liveness) + 1, pair_succ->graph_state, pair_succ->automaton_state, pair_succ->automaton_state->id); + + set_pair_reached(pair_succ->automaton_state); + //set_pair_reached_hash(pair_succ->automaton_state); + + XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs)); + //XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs_hash)); + + MC_SET_RAW_MEM; + xbt_fifo_unshift(mc_stack_liveness, pair_succ); + MC_UNSET_RAW_MEM; + + MC_ddfs(search_cycle); + + } + + }else{ + + if(!visited_hash(pair_succ->automaton_state, search_cycle)){ + //if(!visited(pair_succ->automaton_state, search_cycle)){ + + MC_SET_RAW_MEM; + xbt_fifo_unshift(mc_stack_liveness, pair_succ); + MC_UNSET_RAW_MEM; + + MC_ddfs(search_cycle); + + }else{ + + XBT_INFO("Next pair already visited ! "); + + } + } + + + }else{ + + if(((pair_succ->automaton_state->type == 1) || (pair_succ->automaton_state->type == 2))){ + + set_pair_reached(pair_succ->automaton_state); + //set_pair_reached_hash(pair_succ->automaton_state); + + search_cycle = 1; + + XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs)); + //XBT_INFO("Reached pairs : %lu", xbt_dynar_length(reached_pairs_hash)); + + } + + if(!visited_hash(pair_succ->automaton_state, search_cycle)){ + //if(!visited(pair_succ->automaton_state, search_cycle)){ + + MC_SET_RAW_MEM; + xbt_fifo_unshift(mc_stack_liveness, pair_succ); + MC_UNSET_RAW_MEM; + + MC_ddfs(search_cycle); + + }else{ + + XBT_INFO("Next pair already visited ! "); + + } + + } + + /* Restore system before checking others successors */ + if(cursor != xbt_dynar_length(successors) - 1) + MC_replay_liveness(mc_stack_liveness, 1); + + } + } + + }else{ + + XBT_INFO("Max depth reached"); - 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); - } - } + + if(xbt_fifo_size(mc_stack_liveness) == MAX_DEPTH_LIVENESS ){ + XBT_INFO("Pair (graph=%p, automaton =%p, search_cycle = %d, depth = %d) shifted in stack, maximum depth reached", current_pair->graph_state, current_pair->automaton_state, search_cycle, xbt_fifo_size(mc_stack_liveness) ); + }else{ + XBT_INFO("Pair (graph=%p, automaton =%p, search_cycle = %d, depth = %d) shifted in stack", current_pair->graph_state, current_pair->automaton_state, search_cycle, xbt_fifo_size(mc_stack_liveness) ); + } + + + MC_SET_RAW_MEM; + xbt_fifo_shift(mc_stack_liveness); + if((current_pair->automaton_state->type == 1) || (current_pair->automaton_state->type == 2)){ + xbt_dynar_pop(reached_pairs, NULL); + //xbt_dynar_pop(reached_pairs_hash, NULL); + } + MC_UNSET_RAW_MEM; + + + +} + + +#ifdef SIMGRID_TEST + +XBT_TEST_SUITE("mc_liveness", "Model checking liveness properties"); +XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(mc_liveness); + +XBT_TEST_UNIT("snapshots_comparison", test_compare_snapshot, "Comparison of snapshots") +{ + + MC_SET_RAW_MEM; + + /* Save first snapshot */ + mc_snapshot_t snapshot1 = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot_liveness(snapshot1); + + /* Save second snapshot */ + mc_snapshot_t snapshot2 = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot_liveness(snapshot2); + + MC_UNSET_RAW_MEM; + + xbt_test_assert(snapshot_compare(snapshot1, snapshot2, std_heap, raw_heap) == 0, "Different consecutive snapshot"); + +} + +XBT_TEST_UNIT("snapshots_comparison2", test2_compare_snapshot, "Comparison of snapshots with modification between") +{ + + MC_SET_RAW_MEM; + + /* Save first snapshot */ + mc_snapshot_t snapshot1 = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot_liveness(snapshot1); + + MC_UNSET_RAW_MEM; + + void *test = snapshot1; + test = (char*)test+1; + char* t= strdup("toto"); + t=strdup("tat"); + 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); + + /* Save second snapshot */ + mc_snapshot_t snapshot2 = xbt_new0(s_mc_snapshot_t, 1); + MC_take_snapshot_liveness(snapshot2); + MC_UNSET_RAW_MEM; + xbt_test_assert(snapshot_compare(snapshot1, snapshot2, std_heap) != 0, "Same snapshot with new allocations"); + + } +#endif