X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/24e5543a2803412d6edeb3ace5ecf0fc87de7cd4..071699dbbcb6ebfc659f27ae4b83bc74f6dfa9cb:/src/mc/mc_global.c diff --git a/src/mc/mc_global.c b/src/mc/mc_global.c index 492d9e488d..2738d46e43 100644 --- a/src/mc/mc_global.c +++ b/src/mc/mc_global.c @@ -1,6 +1,7 @@ #include #include #include +#include #include "../surf/surf_private.h" #include "../simix/private.h" @@ -12,20 +13,31 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc, "Logging specific to MC (global)"); /* MC global data structures */ -mc_snapshot_t initial_snapshot = NULL; -xbt_fifo_t mc_stack = NULL; -mc_stats_t mc_stats = NULL; -mc_stats_pair_t mc_stats_pair = NULL; + mc_state_t mc_current_state = NULL; char mc_replay_mode = FALSE; double *mc_time = NULL; -xbt_fifo_t mc_snapshot_stack = NULL; +mc_snapshot_t initial_snapshot = NULL; + +/* Safety */ + +xbt_fifo_t mc_stack_safety_stateful = NULL; +xbt_fifo_t mc_stack_safety_stateless = NULL; +mc_stats_t mc_stats = NULL; + +/* Liveness */ + +xbt_fifo_t mc_stack_liveness_stateful = NULL; +mc_stats_pair_t mc_stats_pair = NULL; +xbt_fifo_t mc_stack_liveness_stateless = NULL; + /** * \brief Initialize the model-checker data structures */ -void MC_init(void) +void MC_init_safety_stateless(void) { + /* Check if MC is already initialized */ if (initial_snapshot) return; @@ -41,7 +53,7 @@ void MC_init(void) mc_stats->state_size = 1; /* Create exploration stack */ - mc_stack = xbt_fifo_new(); + mc_stack_safety_stateless = xbt_fifo_new(); MC_UNSET_RAW_MEM; @@ -54,7 +66,34 @@ void MC_init(void) MC_UNSET_RAW_MEM; } -void MC_init_with_automaton(xbt_automaton_t a){ +void MC_init_safety_stateful(void){ + + + /* Check if MC is already initialized */ + if (initial_snapshot) + return; + + mc_time = xbt_new0(double, simix_process_maxpid); + + /* Initialize the data structures that must be persistent across every + iteration of the model-checker (in RAW memory) */ + MC_SET_RAW_MEM; + + /* Initialize statistics */ + mc_stats = xbt_new0(s_mc_stats_t, 1); + mc_stats->state_size = 1; + + /* Create exploration stack */ + mc_stack_safety_stateful = xbt_fifo_new(); + + MC_UNSET_RAW_MEM; + + MC_dpor_stateful_init(); + + +} + +void MC_init_liveness_stateful(xbt_automaton_t a){ XBT_DEBUG("Start init mc"); @@ -67,39 +106,80 @@ void MC_init_with_automaton(xbt_automaton_t a){ /* Initialize statistics */ mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1); - //mc_stats_pair->pair_size = 1; + //mc_stats = xbt_new0(s_mc_stats_t, 1); XBT_DEBUG("Creating snapshot_stack"); /* Create exploration stack */ - mc_snapshot_stack = xbt_fifo_new(); + mc_stack_liveness_stateful = xbt_fifo_new(); + + + MC_UNSET_RAW_MEM; + + MC_ddfs_stateful_init(a); + //MC_dpor2_init(a); + //MC_dpor3_init(a); +} + +void MC_init_liveness_stateless(xbt_automaton_t a){ + + XBT_DEBUG("Start init mc"); + + mc_time = xbt_new0(double, simix_process_maxpid); + + /* Initialize the data structures that must be persistent across every + iteration of the model-checker (in RAW memory) */ + + MC_SET_RAW_MEM; + + /* Initialize statistics */ + mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1); + + XBT_DEBUG("Creating stack"); + + /* Create exploration stack */ + mc_stack_liveness_stateless = xbt_fifo_new(); MC_UNSET_RAW_MEM; - //MC_vddfs_with_restore_snapshot_init(a); - MC_ddfs_with_restore_snapshot_init(a); + MC_ddfs_stateless_init(a); + + } void MC_modelcheck(void) { - MC_init(); + MC_init_safety_stateless(); MC_dpor(); MC_exit(); } -void MC_modelcheck_with_automaton(xbt_automaton_t a){ - MC_init_with_automaton(a); - MC_exit_with_automaton(); +void MC_modelcheck_stateful(void) +{ + MC_init_safety_stateful(); + MC_dpor_stateful(); + MC_exit(); +} + +void MC_modelcheck_liveness_stateful(xbt_automaton_t a){ + MC_init_liveness_stateful(a); + MC_exit_liveness(); } -void MC_exit_with_automaton(void) +void MC_modelcheck_liveness_stateless(xbt_automaton_t a){ + MC_init_liveness_stateless(a); + MC_exit_liveness(); +} + +void MC_exit_liveness(void) { MC_print_statistics_pairs(mc_stats_pair); - xbt_free(mc_time); + //xbt_free(mc_time); MC_memory_exit(); } + void MC_exit(void) { MC_print_statistics(mc_stats); @@ -107,6 +187,7 @@ void MC_exit(void) MC_memory_exit(); } + int MC_random(int min, int max) { /*FIXME: return mc_current_state->executed_transition->random.value;*/ @@ -201,16 +282,67 @@ void MC_replay(xbt_fifo_t stack) XBT_DEBUG("**** End Replay ****"); } +void MC_replay_liveness(xbt_fifo_t stack) +{ + int value; + char *req_str; + smx_req_t req = NULL, saved_req = NULL; + xbt_fifo_item_t item; + mc_state_t state; + mc_pair_stateless_t pair; + + XBT_DEBUG("**** Begin Replay ****"); + + /* Restore the initial state */ + MC_restore_snapshot(initial_snapshot); + /* At the moment of taking the snapshot the raw heap was set, so restoring + * it will set it back again, we have to unset it to continue */ + MC_UNSET_RAW_MEM; + + /* Traverse the stack from the initial state and re-execute the transitions */ + for (item = xbt_fifo_get_last_item(stack); + item != xbt_fifo_get_first_item(stack); + item = xbt_fifo_get_prev_item(item)) { + + pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item); + state = (mc_state_t) pair->graph_state; + saved_req = MC_state_get_executed_request(state, &value); + //XBT_DEBUG("SavedReq->call %u", saved_req->call); + + if(saved_req != NULL){ + /* because we got a copy of the executed request, we have to fetch the + real one, pointed by the request field of the issuer process */ + req = &saved_req->issuer->request; + //XBT_DEBUG("Req->call %u", req->call); + + /* Debug information */ + if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){ + req_str = MC_request_to_string(req, value); + XBT_DEBUG("Replay: %s (%p)", req_str, state); + xbt_free(req_str); + } + } + + SIMIX_request_pre(req, value); + MC_wait_for_requests(); + + /* Update statistics */ + mc_stats_pair->visited_pairs++; + } + XBT_DEBUG("**** End Replay ****"); +} + + /** * \brief Dumps the contents of a model-checker's stack and shows the actual * execution trace * \param stack The stack to dump */ -void MC_dump_stack(xbt_fifo_t stack) +void MC_dump_stack_safety_stateless(xbt_fifo_t stack) { mc_state_t state; - MC_show_stack(stack); + MC_show_stack_safety_stateless(stack); MC_SET_RAW_MEM; while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL) @@ -218,7 +350,8 @@ void MC_dump_stack(xbt_fifo_t stack) MC_UNSET_RAW_MEM; } -void MC_show_stack(xbt_fifo_t stack) + +void MC_show_stack_safety_stateless(xbt_fifo_t stack) { int value; mc_state_t state; @@ -249,9 +382,113 @@ void MC_show_deadlock(smx_req_t req) XBT_INFO("%s", req_str); xbt_free(req_str);*/ XBT_INFO("Counter-example execution trace:"); - MC_dump_stack(mc_stack); + MC_dump_stack_safety_stateless(mc_stack_safety_stateless); } +void MC_show_deadlock_stateful(smx_req_t req) +{ + /*char *req_str = NULL;*/ + XBT_INFO("**************************"); + XBT_INFO("*** DEAD-LOCK DETECTED ***"); + XBT_INFO("**************************"); + XBT_INFO("Locked request:"); + /*req_str = MC_request_to_string(req); + XBT_INFO("%s", req_str); + xbt_free(req_str);*/ + XBT_INFO("Counter-example execution trace:"); + MC_show_stack_safety_stateful(mc_stack_safety_stateful); +} + +void MC_dump_stack_safety_stateful(xbt_fifo_t stack) +{ + //mc_state_ws_t state; + + MC_show_stack_safety_stateful(stack); + + /*MC_SET_RAW_MEM; + while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL) + MC_state_delete(state); + MC_UNSET_RAW_MEM;*/ +} + + +void MC_show_stack_safety_stateful(xbt_fifo_t stack) +{ + int value; + mc_state_ws_t state; + xbt_fifo_item_t item; + smx_req_t req; + char *req_str = NULL; + + for (item = xbt_fifo_get_last_item(stack); + (item ? (state = (mc_state_ws_t) (xbt_fifo_get_item_content(item))) + : (NULL)); item = xbt_fifo_get_prev_item(item)) { + req = MC_state_get_executed_request(state->graph_state, &value); + if(req){ + req_str = MC_request_to_string(req, value); + XBT_INFO("%s", req_str); + xbt_free(req_str); + } + } +} + +void MC_show_stack_liveness_stateful(xbt_fifo_t stack){ + int value; + mc_pair_t pair; + xbt_fifo_item_t item; + smx_req_t req; + char *req_str = NULL; + + for (item = xbt_fifo_get_last_item(stack); + (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item))) + : (NULL)); item = xbt_fifo_get_prev_item(item)) { + req = MC_state_get_executed_request(pair->graph_state, &value); + if(req){ + req_str = MC_request_to_string(req, value); + XBT_INFO("%s", req_str); + xbt_free(req_str); + } + } +} + +void MC_dump_stack_liveness_stateful(xbt_fifo_t stack){ + mc_pair_t pair; + + MC_SET_RAW_MEM; + while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL) + MC_pair_delete(pair); + MC_UNSET_RAW_MEM; +} + +void MC_show_stack_liveness_stateless(xbt_fifo_t stack){ + int value; + mc_pair_stateless_t pair; + xbt_fifo_item_t item; + smx_req_t req; + char *req_str = NULL; + + for (item = xbt_fifo_get_last_item(stack); + (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item))) + : (NULL)); item = xbt_fifo_get_prev_item(item)) { + req = MC_state_get_executed_request(pair->graph_state, &value); + if(req){ + req_str = MC_request_to_string(req, value); + XBT_INFO("%s", req_str); + xbt_free(req_str); + } + } +} + +void MC_dump_stack_liveness_stateless(xbt_fifo_t stack){ + mc_pair_stateless_t pair; + + MC_SET_RAW_MEM; + while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL) + MC_pair_stateless_delete(pair); + MC_UNSET_RAW_MEM; +} + + void MC_print_statistics(mc_stats_t stats) { XBT_INFO("State space size ~= %lu", stats->state_size); @@ -282,19 +519,45 @@ void MC_assert(int prop) XBT_INFO("*** PROPERTY NOT VALID ***"); XBT_INFO("**************************"); XBT_INFO("Counter-example execution trace:"); - MC_dump_stack(mc_stack); + MC_dump_stack_safety_stateless(mc_stack_safety_stateless); + MC_print_statistics(mc_stats); + xbt_abort(); + } +} + +void MC_assert_stateful(int prop) +{ + if (MC_IS_ENABLED && !prop) { + XBT_INFO("**************************"); + XBT_INFO("*** PROPERTY NOT VALID ***"); + XBT_INFO("**************************"); + XBT_INFO("Counter-example execution trace:"); + MC_dump_stack_safety_stateful(mc_stack_safety_stateful); MC_print_statistics(mc_stats); xbt_abort(); } } -void MC_assert_pair(int prop){ +void MC_assert_pair_stateful(int prop){ + if (MC_IS_ENABLED && !prop) { + XBT_INFO("**************************"); + XBT_INFO("*** PROPERTY NOT VALID ***"); + XBT_INFO("**************************"); + //XBT_INFO("Counter-example execution trace:"); + MC_show_stack_liveness_stateful(mc_stack_liveness_stateful); + //MC_dump_snapshot_stack(mc_snapshot_stack); + MC_print_statistics_pairs(mc_stats_pair); + xbt_abort(); + } +} + +void MC_assert_pair_stateless(int prop){ if (MC_IS_ENABLED && !prop) { XBT_INFO("**************************"); XBT_INFO("*** PROPERTY NOT VALID ***"); XBT_INFO("**************************"); //XBT_INFO("Counter-example execution trace:"); - MC_show_snapshot_stack(mc_snapshot_stack); + MC_show_stack_liveness_stateless(mc_stack_liveness_stateless); //MC_dump_snapshot_stack(mc_snapshot_stack); MC_print_statistics_pairs(mc_stats_pair); xbt_abort();