/* 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 <string.h>
+
+#include "mc_base.h"
+
+#ifndef _XBT_WIN32
#include <unistd.h>
-#include <sys/types.h>
#include <sys/wait.h>
#include <sys/time.h>
-#include <sys/mman.h>
-#include <libgen.h>
+#endif
#include "simgrid/sg_config.h"
#include "../surf/surf_private.h"
#include "../simix/smx_private.h"
-#include "../xbt/mmalloc/mmprivate.h"
#include "xbt/fifo.h"
-#include "mc_private.h"
#include "xbt/automaton.h"
#include "xbt/dict.h"
-XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
- "Logging specific to MC (global)");
-
-/* Configuration support */
-e_mc_reduce_t mc_reduce_kind = e_mc_reduce_unset;
-
-int _sg_do_model_check = 0;
-int _sg_mc_checkpoint = 0;
-char *_sg_mc_property_file = NULL;
-int _sg_mc_timeout = 0;
-int _sg_mc_hash = 0;
-int _sg_mc_max_depth = 1000;
-int _sg_mc_visited = 0;
-char *_sg_mc_dot_output_file = NULL;
-int _sg_mc_comms_determinism = 0;
-int _sg_mc_send_determinism = 0;
-int _sg_mc_safety = 0;
-int _sg_mc_liveness = 0;
-
-int user_max_depth_reached = 0;
-
-void _mc_cfg_cb_reduce(const char *name, int pos)
-{
- if (_sg_cfg_init_status && !_sg_do_model_check) {
- xbt_die
- ("You are specifying a reduction strategy after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
- }
- char *val = xbt_cfg_get_string(_sg_cfg_set, name);
- if (!strcasecmp(val, "none")) {
- mc_reduce_kind = e_mc_reduce_none;
- } else if (!strcasecmp(val, "dpor")) {
- mc_reduce_kind = e_mc_reduce_dpor;
- } else {
- xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",
- name);
- }
-}
-
-void _mc_cfg_cb_checkpoint(const char *name, int pos)
-{
- if (_sg_cfg_init_status && !_sg_do_model_check) {
- xbt_die
- ("You are specifying a checkpointing value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
- }
- _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name);
-}
-
-void _mc_cfg_cb_property(const char *name, int pos)
-{
- if (_sg_cfg_init_status && !_sg_do_model_check) {
- xbt_die
- ("You are specifying a property after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
- }
- _sg_mc_property_file = xbt_cfg_get_string(_sg_cfg_set, name);
-}
-
-void _mc_cfg_cb_timeout(const char *name, int pos)
-{
- if (_sg_cfg_init_status && !_sg_do_model_check) {
- xbt_die
- ("You are specifying a value to enable/disable timeout for wait requests after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
- }
- _sg_mc_timeout = xbt_cfg_get_boolean(_sg_cfg_set, name);
-}
-
-void _mc_cfg_cb_hash(const char *name, int pos)
-{
- if (_sg_cfg_init_status && !_sg_do_model_check) {
- xbt_die
- ("You are specifying a value to enable/disable the use of global hash to speedup state comparaison, but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
- }
- _sg_mc_hash = xbt_cfg_get_boolean(_sg_cfg_set, name);
-}
+#ifdef HAVE_MC
+#include <libunwind.h>
+#include <xbt/mmalloc.h>
-void _mc_cfg_cb_max_depth(const char *name, int pos)
-{
- if (_sg_cfg_init_status && !_sg_do_model_check) {
- xbt_die
- ("You are specifying a max depth value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
- }
- _sg_mc_max_depth = xbt_cfg_get_int(_sg_cfg_set, name);
-}
+#include "../xbt/mmalloc/mmprivate.h"
+#include "mc_object_info.h"
+#include "mc_comm_pattern.h"
+#include "mc_request.h"
+#include "mc_safety.h"
+#include "mc_memory_map.h"
+#include "mc_snapshot.h"
+#include "mc_liveness.h"
+#include "mc_private.h"
+#include "mc_unw.h"
+#include "mc_smx.h"
+#endif
+#include "mc_record.h"
+#include "mc_protocol.h"
+#include "mc_client.h"
-void _mc_cfg_cb_visited(const char *name, int pos)
-{
- if (_sg_cfg_init_status && !_sg_do_model_check) {
- xbt_die
- ("You are specifying a number of stored visited states after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
- }
- _sg_mc_visited = xbt_cfg_get_int(_sg_cfg_set, name);
-}
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
+ "Logging specific to MC (global)");
-void _mc_cfg_cb_dot_output(const char *name, int pos)
-{
- if (_sg_cfg_init_status && !_sg_do_model_check) {
- xbt_die
- ("You are specifying a file name for a dot output of graph state after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
- }
- _sg_mc_dot_output_file = xbt_cfg_get_string(_sg_cfg_set, name);
-}
+e_mc_mode_t mc_mode;
-void _mc_cfg_cb_comms_determinism(const char *name, int pos)
-{
- if (_sg_cfg_init_status && !_sg_do_model_check) {
- xbt_die
- ("You are specifying a value to enable/disable the detection of determinism in the communications schemes after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
- }
- _sg_mc_comms_determinism = xbt_cfg_get_boolean(_sg_cfg_set, name);
-}
+double *mc_time = NULL;
-void _mc_cfg_cb_send_determinism(const char *name, int pos)
-{
- if (_sg_cfg_init_status && !_sg_do_model_check) {
- xbt_die
- ("You are specifying a value to enable/disable the detection of send-determinism in the communications schemes after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
- }
- _sg_mc_send_determinism = xbt_cfg_get_boolean(_sg_cfg_set, name);
-}
+#ifdef HAVE_MC
+int user_max_depth_reached = 0;
/* MC global data structures */
mc_state_t mc_current_state = NULL;
char mc_replay_mode = FALSE;
-double *mc_time = NULL;
+
__thread mc_comparison_times_t mc_comp_times = NULL;
__thread double mc_snapshot_comparison_time;
mc_stats_t mc_stats = NULL;
/* Liveness */
xbt_automaton_t _mc_property_automaton = NULL;
-/* Variables */
-mc_object_info_t mc_libsimgrid_info = NULL;
-mc_object_info_t mc_binary_info = NULL;
-
-mc_object_info_t mc_object_infos[2] = { NULL, NULL };
-
-size_t mc_object_infos_size = 2;
-
/* Dot output */
FILE *dot_output = NULL;
const char *colors[13];
}
-static void MC_init_debug_info(void)
+void MC_init()
{
- XBT_INFO("Get debug information ...");
-
- memory_map_t maps = MC_get_memory_map();
-
- /* Get local variables for state equality detection */
- mc_binary_info = MC_find_object_info(maps, xbt_binary_name, 1);
- mc_object_infos[0] = mc_binary_info;
-
- mc_libsimgrid_info = MC_find_object_info(maps, libsimgrid_path, 0);
- mc_object_infos[1] = mc_libsimgrid_info;
-
- // Use information of the other objects:
- MC_post_process_object_info(mc_binary_info);
- MC_post_process_object_info(mc_libsimgrid_info);
-
- MC_free_memory_map(maps);
- XBT_INFO("Get debug information done !");
+ MC_init_pid(getpid(), -1);
}
-
-void MC_init()
+void MC_init_pid(pid_t pid, int socket)
{
-
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
- mc_time = xbt_new0(double, simix_process_maxpid);
+ if (mc_mode == MC_MODE_NONE) {
+ if (getenv(MC_ENV_SOCKET_FD)) {
+ mc_mode = MC_MODE_CLIENT;
+ } else {
+ mc_mode = MC_MODE_STANDALONE;
+ }
+ }
/* Initialize the data structures that must be persistent across every
iteration of the model-checker (in RAW memory) */
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
+
+ mc_model_checker = MC_model_checker_new(pid, socket);
+ if (mc_mode == MC_MODE_SERVER) {
+ int maxpid;
+ MC_process_read_variable(&mc_model_checker->process, "simix_process_maxpid",
+ &maxpid, sizeof(maxpid));
+ simix_process_maxpid = maxpid;
+ }
+
+ mmalloc_set_current_heap(std_heap);
+ mc_time = xbt_new0(double, MC_smx_get_maxpid());
+ mmalloc_set_current_heap(mc_heap);
mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
mc_stats = xbt_new0(s_mc_stats_t, 1);
mc_stats->state_size = 1;
- MC_init_memory_map_info();
- MC_init_debug_info(); /* FIXME : get debug information only if liveness verification or visited state reduction */
-
if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0'))
MC_init_dot_output();
MC_SET_STD_HEAP;
- if (_sg_mc_visited > 0
- || (_sg_mc_property_file && _sg_mc_property_file[0] != '\0')) {
+ if (_sg_mc_visited > 0 || _sg_mc_liveness || _sg_mc_termination) {
/* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
MC_ignore_local_variable("e", "*");
MC_ignore_local_variable("__ex_cleanup", "*");
MC_ignore_local_variable("ctx", "*");
MC_ignore_local_variable("self", "simcall_BODY_mc_snapshot");
- MC_ignore_local_variable("next_context", "smx_ctx_sysv_suspend_serial");
+ MC_ignore_local_variable("next_cont"
+ "ext", "smx_ctx_sysv_suspend_serial");
MC_ignore_local_variable("i", "smx_ctx_sysv_suspend_serial");
/* Ignore local variable about time used for tracing */
MC_ignore_local_variable("start_time", "*");
- MC_ignore_global_variable("compared_pointers");
+ /* Main MC state: */
+ MC_ignore_global_variable("mc_model_checker");
+ MC_ignore_global_variable("initial_communications_pattern");
+ MC_ignore_global_variable("incomplete_communications_pattern");
+ MC_ignore_global_variable("nb_comm_pattern");
+
+ /* MC __thread variables: */
+ MC_ignore_global_variable("mc_diff_info");
MC_ignore_global_variable("mc_comp_times");
MC_ignore_global_variable("mc_snapshot_comparison_time");
+
+ /* This MC state is used in MC replay as well: */
MC_ignore_global_variable("mc_time");
- MC_ignore_global_variable("smpi_current_rank");
- MC_ignore_global_variable("counter"); /* Static variable used for tracing */
- MC_ignore_global_variable("maestro_stack_start");
- MC_ignore_global_variable("maestro_stack_end");
+
+ /* Static variable used for tracing */
+ MC_ignore_global_variable("counter");
+
+ /* SIMIX */
MC_ignore_global_variable("smx_total_comms");
- MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
+ if (mc_mode == MC_MODE_STANDALONE || mc_mode == MC_MODE_CLIENT) {
+ /* Those requests are handled on the client side and propagated by message
+ * to the server: */
+
+ MC_ignore_heap(mc_time, MC_smx_get_maxpid() * sizeof(double));
+
+ smx_process_t process;
+ xbt_swag_foreach(process, simix_global->process_list) {
+ MC_ignore_heap(&(process->process_hookup), sizeof(process->process_hookup));
+ }
+ }
- /*smx_process_t process;
- xbt_swag_foreach(process, simix_global->process_list) {
- MC_ignore_heap(&(process->process_hookup),
- sizeof(process->process_hookup));
- }*/
}
- if (raw_mem_set)
- MC_SET_MC_HEAP;
+ mmalloc_set_current_heap(heap);
+
+ if (mc_mode == MC_MODE_CLIENT) {
+ // This will move somehwere else:
+ MC_client_handle_messages();
+ }
}
static void MC_modelcheck_comm_determinism_init(void)
{
-
- int mc_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
MC_init();
- if (!mc_mem_set)
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
/* Create exploration stack */
mc_stack = xbt_fifo_new();
initial_global_state = xbt_new0(s_mc_global_t, 1);
initial_global_state->snapshot = MC_take_snapshot(0);
initial_global_state->initial_communications_pattern_done = 0;
- initial_global_state->comm_deterministic = 1;
+ initial_global_state->recv_deterministic = 1;
initial_global_state->send_deterministic = 1;
+ initial_global_state->recv_diff = NULL;
+ initial_global_state->send_diff = NULL;
+
MC_SET_STD_HEAP;
MC_modelcheck_comm_determinism();
- if(mc_mem_set)
- MC_SET_MC_HEAP;
-
+ mmalloc_set_current_heap(heap);
}
static void MC_modelcheck_safety_init(void)
{
- int mc_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
_sg_mc_safety = 1;
MC_init();
- if (!mc_mem_set)
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
/* Create exploration stack */
mc_stack = xbt_fifo_new();
MC_modelcheck_safety();
- if (mc_mem_set)
- MC_SET_MC_HEAP;
+ mmalloc_set_current_heap(heap);
xbt_abort();
//MC_exit();
static void MC_modelcheck_liveness_init()
{
-
- int mc_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
_sg_mc_liveness = 1;
MC_init();
- if (!mc_mem_set)
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
/* Create exploration stack */
mc_stack = xbt_fifo_new();
MC_print_statistics(mc_stats);
xbt_free(mc_time);
- if (mc_mem_set)
- MC_SET_MC_HEAP;
+ mmalloc_set_current_heap(heap);
}
if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
XBT_INFO("Check communication determinism");
+ mc_reduce_kind = e_mc_reduce_none;
MC_modelcheck_comm_determinism_init();
} else if (!_sg_mc_property_file || _sg_mc_property_file[0] == '\0') {
- if (mc_reduce_kind == e_mc_reduce_unset)
- mc_reduce_kind = e_mc_reduce_dpor;
- XBT_INFO("Check a safety property");
+ if(_sg_mc_termination){
+ XBT_INFO("Check non progressive cycles");
+ mc_reduce_kind = e_mc_reduce_none;
+ }else{
+ XBT_INFO("Check a safety property");
+ }
MC_modelcheck_safety_init();
} else {
if (mc_reduce_kind == e_mc_reduce_unset)
//xbt_abort();
}
-int SIMIX_pre_mc_random(smx_simcall_t simcall, int min, int max)
-{
-
- return simcall->mc_value;
-}
-
-
-int MC_random(int min, int max)
-{
- /*FIXME: return mc_current_state->executed_transition->random.value; */
- return simcall_mc_random(min, max);
-}
-
-/**
- * \brief Schedules all the process that are ready to run
- */
-void MC_wait_for_requests(void)
+int MC_deadlock_check()
{
- smx_process_t process;
- smx_simcall_t req;
- unsigned int iter;
-
- while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
- SIMIX_process_runall();
- xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
- req = &process->simcall;
- if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
- SIMIX_simcall_pre(req, 0);
+ if (mc_mode == MC_MODE_SERVER) {
+ int res;
+ if ((res = MC_protocol_send_simple_message(mc_model_checker->process.socket,
+ MC_MESSAGE_DEADLOCK_CHECK)))
+ xbt_die("Could not check deadlock state");
+ s_mc_int_message_t message;
+ ssize_t s = MC_receive_message(mc_model_checker->process.socket, &message, sizeof(message));
+ if (s == -1)
+ xbt_die("Could not receive message");
+ else if (s != sizeof(message) || message.type != MC_MESSAGE_DEADLOCK_CHECK_REPLY) {
+ xbt_die("Unexpected message, expected MC_MESSAGE_DEADLOCK_CHECK_REPLY %i %i vs %i %i",
+ (int) s, (int) message.type, (int) sizeof(message), (int) MC_MESSAGE_DEADLOCK_CHECK_REPLY
+ );
}
+ else
+ return message.value;
}
-}
-int MC_deadlock_check()
-{
int deadlock = FALSE;
smx_process_t process;
if (xbt_swag_size(simix_global->process_list)) {
deadlock = TRUE;
- xbt_swag_foreach(process, simix_global->process_list) {
- if (process->simcall.call != SIMCALL_NONE
- && MC_request_is_enabled(&process->simcall)) {
+ MC_EACH_SIMIX_PROCESS(process,
+ if (MC_process_is_enabled(process)) {
deadlock = FALSE;
break;
}
- }
+ );
}
return deadlock;
}
+void handle_comm_pattern(e_mc_call_type_t call_type, smx_simcall_t req, int value, xbt_dynar_t pattern, int backtracking) {
+
+ switch(call_type) {
+ case MC_CALL_TYPE_NONE:
+ break;
+ case MC_CALL_TYPE_SEND:
+ case MC_CALL_TYPE_RECV:
+ get_comm_pattern(pattern, req, call_type, backtracking);
+ break;
+ case MC_CALL_TYPE_WAIT:
+ case MC_CALL_TYPE_WAITANY:
+ {
+ smx_synchro_t current_comm = NULL;
+ if (call_type == MC_CALL_TYPE_WAIT)
+ current_comm = simcall_comm_wait__get__comm(req);
+ else
+ current_comm = xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value, smx_synchro_t);
+ complete_comm_pattern(pattern, current_comm, req->issuer->pid, backtracking);
+ }
+ break;
+ default:
+ xbt_die("Unexpected call type %i", (int)call_type);
+ }
+
+}
+
+static void MC_restore_communications_pattern(mc_state_t state) {
+ mc_list_comm_pattern_t list_process_comm;
+ unsigned int cursor, cursor2;
+ xbt_dynar_foreach(initial_communications_pattern, cursor, list_process_comm){
+ list_process_comm->index_comm = (int)xbt_dynar_get_as(state->index_comm, cursor, int);
+ }
+ mc_comm_pattern_t comm;
+ cursor = 0;
+ xbt_dynar_t initial_incomplete_process_comms, incomplete_process_comms;
+ for(int i=0; i < MC_smx_get_maxpid(); i++){
+ initial_incomplete_process_comms = xbt_dynar_get_as(incomplete_communications_pattern, i, xbt_dynar_t);
+ xbt_dynar_reset(initial_incomplete_process_comms);
+ incomplete_process_comms = xbt_dynar_get_as(state->incomplete_comm_pattern, i, xbt_dynar_t);
+ xbt_dynar_foreach(incomplete_process_comms, cursor2, comm) {
+ mc_comm_pattern_t copy_comm = xbt_new0(s_mc_comm_pattern_t, 1);
+ copy_comm->index = comm->index;
+ copy_comm->type = comm->type;
+ copy_comm->comm = comm->comm;
+ copy_comm->rdv = strdup(comm->rdv);
+ copy_comm->data_size = -1;
+ copy_comm->data = NULL;
+ if(comm->type == SIMIX_COMM_SEND){
+ copy_comm->src_proc = comm->src_proc;
+ copy_comm->src_host = comm->src_host;
+ if(comm->data != NULL){
+ copy_comm->data_size = comm->data_size;
+ copy_comm->data = xbt_malloc0(comm->data_size);
+ memcpy(copy_comm->data, comm->data, comm->data_size);
+ }
+ }else{
+ copy_comm->dst_proc = comm->dst_proc;
+ copy_comm->dst_host = comm->dst_host;
+ }
+ xbt_dynar_push(initial_incomplete_process_comms, ©_comm);
+ }
+ }
+}
+
/**
* \brief Re-executes from the state at position start all the transitions indicated by
* a given model-checker stack.
* \param stack The stack with the transitions to execute.
* \param start Start index to begin the re-execution.
*/
-void MC_replay(xbt_fifo_t stack, int start)
+void MC_replay(xbt_fifo_t stack)
{
- int raw_mem = (mmalloc_get_current_heap() == mc_heap);
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
- int value, i = 1, count = 1;
+ int value, count = 1, j;
char *req_str;
smx_simcall_t req = NULL, saved_req = NULL;
xbt_fifo_item_t item, start_item;
mc_state_t state;
- smx_process_t process = NULL;
- int comm_pattern = 0;
- smx_action_t current_comm;
-
+
XBT_DEBUG("**** Begin Replay ****");
- if (start == -1) {
- /* Restore the initial state */
- MC_restore_snapshot(initial_global_state->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_SET_STD_HEAP;
- }
-
- start_item = xbt_fifo_get_last_item(stack);
- if (start != -1) {
- while (i != start) {
- start_item = xbt_fifo_get_prev_item(start_item);
- i++;
+ /* Intermediate backtracking */
+ if(_sg_mc_checkpoint > 0 || _sg_mc_termination || _sg_mc_visited > 0) {
+ start_item = xbt_fifo_get_first_item(stack);
+ state = (mc_state_t)xbt_fifo_get_item_content(start_item);
+ if(state->system_state){
+ MC_restore_snapshot(state->system_state);
+ if(_sg_mc_comms_determinism || _sg_mc_send_determinism)
+ MC_restore_communications_pattern(state);
+ MC_SET_STD_HEAP;
+ return;
}
}
- MC_SET_MC_HEAP;
- if ((mc_reduce_kind == e_mc_reduce_dpor) && !_sg_mc_comms_determinism && !_sg_mc_send_determinism) {
- xbt_dict_reset(first_enabled_state);
- xbt_swag_foreach(process, simix_global->process_list) {
- if (MC_process_is_enabled(process)) {
- char *key = bprintf("%lu", process->pid);
- char *data = bprintf("%d", count);
- xbt_dict_set(first_enabled_state, key, data, NULL);
- xbt_free(key);
- }
- }
- }
+ /* Restore the initial state */
+ MC_restore_snapshot(initial_global_state->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_SET_STD_HEAP;
+
+ start_item = xbt_fifo_get_last_item(stack);
+
+ MC_SET_MC_HEAP;
if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
- xbt_dynar_reset(communications_pattern);
- xbt_dynar_reset(incomplete_communications_pattern);
+ for (j=0; j < simix_process_maxpid; j++) {
+ xbt_dynar_reset((xbt_dynar_t)xbt_dynar_get_as(incomplete_communications_pattern, j, xbt_dynar_t));
+ ((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, j, mc_list_comm_pattern_t))->index_comm = 0;
+ }
}
MC_SET_STD_HEAP;
-
/* Traverse the stack from the state at position start and re-execute the transitions */
for (item = start_item;
item != xbt_fifo_get_first_item(stack);
state = (mc_state_t) xbt_fifo_get_item_content(item);
saved_req = MC_state_get_executed_request(state, &value);
-
- if ((mc_reduce_kind == e_mc_reduce_dpor) && !_sg_mc_comms_determinism && !_sg_mc_send_determinism) {
- MC_SET_MC_HEAP;
- char *key = bprintf("%lu", saved_req->issuer->pid);
- xbt_dict_remove(first_enabled_state, key);
- xbt_free(key);
- MC_SET_STD_HEAP;
- }
-
+
if (saved_req) {
/* 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->simcall;
+
+ const smx_process_t issuer = MC_smx_simcall_get_issuer(saved_req);
+ req = &issuer->simcall;
/* Debug information */
if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) {
}
/* TODO : handle test and testany simcalls */
- if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
- if (req->call == SIMCALL_COMM_ISEND)
- comm_pattern = 1;
- else if (req->call == SIMCALL_COMM_IRECV)
- comm_pattern = 2;
- else if (req->call == SIMCALL_COMM_WAIT)
- comm_pattern = 3;
- else if (req->call == SIMCALL_COMM_WAITANY)
- comm_pattern = 4;
- }
-
- SIMIX_simcall_pre(req, value);
-
- if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
- MC_SET_MC_HEAP;
- if (comm_pattern == 1 || comm_pattern == 2) {
- get_comm_pattern(communications_pattern, req, comm_pattern);
- } else if (comm_pattern == 3 /* || comm_pattern == 4 */ ) {
- current_comm = simcall_comm_wait__get__comm(req);
- if (current_comm->comm.refcount == 1) { /* First wait only must be considered */
- complete_comm_pattern(communications_pattern, current_comm);
- }
- } else if (comm_pattern == 4 /* || comm_pattern == 4 */ ) {
- current_comm =
- xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value,
- smx_action_t);
- if (current_comm->comm.refcount == 1) { /* First wait only must be considered */
- complete_comm_pattern(communications_pattern, current_comm);
- }
- }
- MC_SET_STD_HEAP;
- comm_pattern = 0;
- }
+ e_mc_call_type_t call = MC_CALL_TYPE_NONE;
+ if (_sg_mc_comms_determinism || _sg_mc_send_determinism)
+ call = mc_get_call_type(req);
+ MC_simcall_handle(req, value);
+ MC_SET_MC_HEAP;
+ if (_sg_mc_comms_determinism || _sg_mc_send_determinism)
+ handle_comm_pattern(call, req, value, NULL, 1);
+ MC_SET_STD_HEAP;
+
MC_wait_for_requests();
count++;
-
- if ((mc_reduce_kind == e_mc_reduce_dpor) && !_sg_mc_comms_determinism && !_sg_mc_send_determinism) {
- MC_SET_MC_HEAP;
- /* Insert in dict all enabled processes */
- xbt_swag_foreach(process, simix_global->process_list) {
- if (MC_process_is_enabled(process) ) {
- char *key = bprintf("%lu", process->pid);
- if (xbt_dict_get_or_null(first_enabled_state, key) == NULL) {
- char *data = bprintf("%d", count);
- xbt_dict_set(first_enabled_state, key, data, NULL);
- }
- xbt_free(key);
- }
- }
- MC_SET_STD_HEAP;
- }
}
/* Update statistics */
}
XBT_DEBUG("**** End Replay ****");
-
- if (raw_mem)
- MC_SET_MC_HEAP;
- else
- MC_SET_STD_HEAP;
-
-
+ mmalloc_set_current_heap(heap);
}
-void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
+void MC_replay_liveness(xbt_fifo_t stack)
{
initial_global_state->raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
- int value;
- char *req_str;
- smx_simcall_t req = NULL, saved_req = NULL;
xbt_fifo_item_t item;
- mc_state_t state;
- mc_pair_t pair;
- int depth = 1;
+ mc_pair_t pair = NULL;
+ mc_state_t state = NULL;
+ smx_simcall_t req = NULL, saved_req = NULL;
+ int value, depth = 1;
+ char *req_str;
XBT_DEBUG("**** Begin Replay ****");
+ /* Intermediate backtracking */
+ if(_sg_mc_checkpoint > 0) {
+ item = xbt_fifo_get_first_item(stack);
+ pair = (mc_pair_t) xbt_fifo_get_item_content(item);
+ if(pair->graph_state->system_state){
+ MC_restore_snapshot(pair->graph_state->system_state);
+ MC_SET_STD_HEAP;
+ return;
+ }
+ }
+
/* Restore the initial state */
MC_restore_snapshot(initial_global_state->snapshot);
if (!initial_global_state->raw_mem_set)
MC_SET_STD_HEAP;
- if (all_stack) {
-
- item = xbt_fifo_get_last_item(stack);
-
- while (depth <= xbt_fifo_size(stack)) {
-
- pair = (mc_pair_t) xbt_fifo_get_item_content(item);
- state = (mc_state_t) pair->graph_state;
-
- if (pair->requests > 0) {
-
- 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->simcall;
- //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 (depth = %d) : %s (%p)", depth, req_str, state);
- xbt_free(req_str);
- }
-
- }
-
- SIMIX_simcall_pre(req, value);
- MC_wait_for_requests();
- }
-
- depth++;
-
- /* Update statistics */
- mc_stats->visited_pairs++;
- mc_stats->executed_transitions++;
-
- item = xbt_fifo_get_prev_item(item);
- }
-
- } else {
-
/* 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_t) xbt_fifo_get_item_content(item);
+
state = (mc_state_t) pair->graph_state;
- if (pair->requests > 0) {
+ if (pair->exploration_started) {
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
+ /* 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->simcall;
- //XBT_DEBUG("Req->call %u", req->call);
+ const smx_process_t issuer = MC_smx_simcall_get_issuer(saved_req);
+ req = &issuer->simcall;
/* Debug information */
if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) {
}
- SIMIX_simcall_pre(req, value);
+ MC_simcall_handle(req, value);
MC_wait_for_requests();
}
- depth++;
-
/* Update statistics */
mc_stats->visited_pairs++;
mc_stats->executed_transitions++;
+
+ depth++;
+
}
- }
XBT_DEBUG("**** End Replay ****");
*/
void MC_dump_stack_safety(xbt_fifo_t stack)
{
-
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
MC_show_stack_safety(stack);
-
- if (!_sg_mc_checkpoint) {
-
- mc_state_t state;
-
- MC_SET_MC_HEAP;
- while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
- MC_state_delete(state);
- MC_SET_STD_HEAP;
-
- }
-
- if (raw_mem_set)
- MC_SET_MC_HEAP;
- else
- MC_SET_STD_HEAP;
-
+
+ mc_state_t state;
+
+ MC_SET_MC_HEAP;
+ while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
+ MC_state_delete(state, !state->in_visited_states ? 1 : 0);
+ mmalloc_set_current_heap(heap);
}
void MC_show_stack_safety(xbt_fifo_t stack)
{
-
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
int value;
mc_state_t state;
}
}
- if (!raw_mem_set)
- MC_SET_STD_HEAP;
+ mmalloc_set_current_heap(heap);
}
void MC_show_deadlock(smx_simcall_t req)
MC_print_statistics(mc_stats);
}
+void MC_show_non_termination(void){
+ XBT_INFO("******************************************");
+ XBT_INFO("*** NON-PROGRESSIVE CYCLE DETECTED ***");
+ XBT_INFO("******************************************");
+ XBT_INFO("Counter-example execution trace:");
+ MC_dump_stack_safety(mc_stack);
+ MC_print_statistics(mc_stats);
+}
+
void MC_show_stack_liveness(xbt_fifo_t stack)
{
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)) {
+ (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) {
- if (pair->requests > 0) {
- req_str = MC_request_to_string(req, value);
- XBT_INFO("%s", req_str);
- xbt_free(req_str);
- } else {
- XBT_INFO("End of system requests but evolution in Büchi automaton");
- }
+ if (req && req->call != SIMCALL_NONE) {
+ req_str = MC_request_to_string(req, value);
+ XBT_INFO("%s", req_str);
+ xbt_free(req_str);
}
}
}
+
void MC_dump_stack_liveness(xbt_fifo_t stack)
{
-
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
mc_pair_t pair;
-
- MC_SET_MC_HEAP;
while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
MC_pair_delete(pair);
- MC_SET_STD_HEAP;
-
- if (raw_mem_set)
- MC_SET_MC_HEAP;
-
+ mmalloc_set_current_heap(heap);
}
-
void MC_print_statistics(mc_stats_t stats)
{
+ if(_sg_mc_comms_determinism) {
+ if (!initial_global_state->recv_deterministic && initial_global_state->send_deterministic){
+ XBT_INFO("******************************************************");
+ XBT_INFO("**** Only-send-deterministic communication pattern ****");
+ XBT_INFO("******************************************************");
+ XBT_INFO("%s", initial_global_state->recv_diff);
+ }else if(!initial_global_state->send_deterministic && initial_global_state->recv_deterministic) {
+ XBT_INFO("******************************************************");
+ XBT_INFO("**** Only-recv-deterministic communication pattern ****");
+ XBT_INFO("******************************************************");
+ XBT_INFO("%s", initial_global_state->send_diff);
+ }
+ }
+
if (stats->expanded_pairs == 0) {
XBT_INFO("Expanded states = %lu", stats->expanded_states);
XBT_INFO("Visited states = %lu", stats->visited_states);
XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
}
XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
- MC_SET_MC_HEAP;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0')) {
fprintf(dot_output, "}\n");
fclose(dot_output);
}
- if (initial_global_state != NULL) {
+ if (initial_global_state != NULL && (_sg_mc_comms_determinism || _sg_mc_send_determinism)) {
+ XBT_INFO("Send-deterministic : %s", !initial_global_state->send_deterministic ? "No" : "Yes");
if (_sg_mc_comms_determinism)
- XBT_INFO("Communication-deterministic : %s",
- !initial_global_state->comm_deterministic ? "No" : "Yes");
- if (_sg_mc_send_determinism)
- XBT_INFO("Send-deterministic : %s",
- !initial_global_state->send_deterministic ? "No" : "Yes");
+ XBT_INFO("Recv-deterministic : %s", !initial_global_state->recv_deterministic ? "No" : "Yes");
}
- MC_SET_STD_HEAP;
+ mmalloc_set_current_heap(heap);
}
-void MC_assert(int prop)
+void MC_automaton_load(const char *file)
{
- if (MC_is_active() && !prop) {
- XBT_INFO("**************************");
- XBT_INFO("*** PROPERTY NOT VALID ***");
- XBT_INFO("**************************");
- XBT_INFO("Counter-example execution trace:");
- MC_dump_stack_safety(mc_stack);
- MC_print_statistics(mc_stats);
- xbt_abort();
- }
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
+
+ if (_mc_property_automaton == NULL)
+ _mc_property_automaton = xbt_automaton_new();
+
+ xbt_automaton_load(_mc_property_automaton, file);
+ mmalloc_set_current_heap(heap);
}
-void MC_cut(void)
+static void register_symbol(xbt_automaton_propositional_symbol_t symbol)
{
- user_max_depth_reached = 1;
+ if (mc_mode != MC_MODE_CLIENT)
+ return;
+ s_mc_register_symbol_message_t message;
+ message.type = MC_MESSAGE_REGISTER_SYMBOL;
+ const char* name = xbt_automaton_propositional_symbol_get_name(symbol);
+ if (strlen(name) + 1 > sizeof(message.name))
+ xbt_die("Symbol is too long");
+ strncpy(message.name, name, sizeof(message.name));
+ message.callback = xbt_automaton_propositional_symbol_get_callback(symbol);
+ message.data = xbt_automaton_propositional_symbol_get_data(symbol);
+ MC_client_send_message(&message, sizeof(message));
}
-void MC_process_clock_add(smx_process_t process, double amount)
+void MC_automaton_new_propositional_symbol(const char *id, int(*fct)(void))
{
- mc_time[process->pid] += amount;
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
+
+ if (_mc_property_automaton == NULL)
+ _mc_property_automaton = xbt_automaton_new();
+
+ xbt_automaton_propositional_symbol_t symbol = xbt_automaton_propositional_symbol_new(_mc_property_automaton, id, fct);
+ register_symbol(symbol);
+ mmalloc_set_current_heap(heap);
}
+void MC_automaton_new_propositional_symbol_pointer(const char *id, int* value)
+{
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
+ if (_mc_property_automaton == NULL)
+ _mc_property_automaton = xbt_automaton_new();
+ xbt_automaton_propositional_symbol_t symbol = xbt_automaton_propositional_symbol_new_pointer(_mc_property_automaton, id, value);
+ register_symbol(symbol);
+ mmalloc_set_current_heap(heap);
+}
+
+void MC_automaton_new_propositional_symbol_callback(const char* id,
+ xbt_automaton_propositional_symbol_callback_type callback,
+ void* data, xbt_automaton_propositional_symbol_free_function_type free_function)
+{
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
+ if (_mc_property_automaton == NULL)
+ _mc_property_automaton = xbt_automaton_new();
+ xbt_automaton_propositional_symbol_t symbol = xbt_automaton_propositional_symbol_new_callback(
+ _mc_property_automaton, id, callback, data, free_function);
+ register_symbol(symbol);
+ mmalloc_set_current_heap(heap);
+}
+
+void MC_dump_stacks(FILE* file)
+{
+ xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
+
+ int nstack = 0;
+ stack_region_t current_stack;
+ unsigned cursor;
+ xbt_dynar_foreach(stacks_areas, cursor, current_stack) {
+ unw_context_t * context = (unw_context_t *)current_stack->context;
+ fprintf(file, "Stack %i:\n", nstack);
+
+ int nframe = 0;
+ char buffer[100];
+ unw_cursor_t c;
+ unw_init_local (&c, context);
+ unw_word_t off;
+ do {
+ const char * name = !unw_get_proc_name(&c, buffer, 100, &off) ? buffer : "?";
+ fprintf(file, " %i: %s\n", nframe, name);
+ ++nframe;
+ } while(unw_step(&c));
+
+ ++nstack;
+ }
+ mmalloc_set_current_heap(heap);
+}
+#endif
+
double MC_process_clock_get(smx_process_t process)
{
if (mc_time) {
}
}
-void MC_automaton_load(const char *file)
-{
-
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
- MC_SET_MC_HEAP;
-
- if (_mc_property_automaton == NULL)
- _mc_property_automaton = xbt_automaton_new();
-
- xbt_automaton_load(_mc_property_automaton, file);
-
- MC_SET_STD_HEAP;
-
- if (raw_mem_set)
- MC_SET_MC_HEAP;
-
-}
-
-void MC_automaton_new_propositional_symbol(const char *id, void *fct)
+void MC_process_clock_add(smx_process_t process, double amount)
{
-
- int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
-
- MC_SET_MC_HEAP;
-
- if (_mc_property_automaton == NULL)
- _mc_property_automaton = xbt_automaton_new();
-
- xbt_automaton_propositional_symbol_new(_mc_property_automaton, id, fct);
-
- MC_SET_STD_HEAP;
-
- if (raw_mem_set)
- MC_SET_MC_HEAP;
-
+ mc_time[process->pid] += amount;
}
