1 /* Copyright (c) 2008-2014. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
18 #include "simgrid/sg_config.h"
19 #include "../surf/surf_private.h"
20 #include "../simix/smx_private.h"
22 #include "xbt/automaton.h"
24 #include "mc_server.h"
27 #include <libunwind.h>
28 #include <xbt/mmalloc.h>
30 #include "../xbt/mmalloc/mmprivate.h"
31 #include "mc_object_info.h"
32 #include "mc_comm_pattern.h"
33 #include "mc_request.h"
34 #include "mc_safety.h"
35 #include "mc_memory_map.h"
36 #include "mc_snapshot.h"
37 #include "mc_liveness.h"
38 #include "mc_private.h"
42 #include "mc_record.h"
43 #include "mc_protocol.h"
44 #include "mc_client.h"
46 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
47 "Logging specific to MC (global)");
51 double *mc_time = NULL;
54 int user_max_depth_reached = 0;
56 /* MC global data structures */
57 mc_state_t mc_current_state = NULL;
58 char mc_replay_mode = FALSE;
60 __thread mc_comparison_times_t mc_comp_times = NULL;
61 __thread double mc_snapshot_comparison_time;
62 mc_stats_t mc_stats = NULL;
63 mc_global_t initial_global_state = NULL;
64 xbt_fifo_t mc_stack = NULL;
67 xbt_automaton_t _mc_property_automaton = NULL;
70 FILE *dot_output = NULL;
71 const char *colors[13];
74 /******************************* Initialisation of MC *******************************/
75 /*********************************************************************************/
77 static void MC_init_dot_output()
78 { /* FIXME : more colors */
83 colors[3] = "goldenrod";
86 colors[6] = "magenta";
87 colors[7] = "turquoise4";
89 colors[9] = "forestgreen";
90 colors[10] = "hotpink";
91 colors[11] = "lightblue";
94 dot_output = fopen(_sg_mc_dot_output_file, "w");
96 if (dot_output == NULL) {
97 perror("Error open dot output file");
102 "digraph graphname{\n fixedsize=true; rankdir=TB; ranksep=.25; edge [fontsize=12]; node [fontsize=10, shape=circle,width=.5 ]; graph [resolution=20, fontsize=10];\n");
108 MC_init_pid(getpid(), -1);
111 static void MC_init_mode(void)
113 if (mc_mode == MC_MODE_NONE) {
114 if (getenv(MC_ENV_SOCKET_FD)) {
115 mc_mode = MC_MODE_CLIENT;
117 mc_mode = MC_MODE_STANDALONE;
122 void MC_init_pid(pid_t pid, int socket)
124 /* Initialize the data structures that must be persistent across every
125 iteration of the model-checker (in RAW memory) */
127 xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
129 mc_model_checker = MC_model_checker_new(pid, socket);
130 if (mc_mode == MC_MODE_SERVER) {
131 unsigned long maxpid;
132 MC_process_read_variable(&mc_model_checker->process, "simix_process_maxpid",
133 &maxpid, sizeof(maxpid));
134 simix_process_maxpid = maxpid;
137 mmalloc_set_current_heap(std_heap);
138 mc_time = xbt_new0(double, MC_smx_get_maxpid());
139 mmalloc_set_current_heap(mc_heap);
141 mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
143 /* Initialize statistics */
144 mc_stats = xbt_new0(s_mc_stats_t, 1);
145 mc_stats->state_size = 1;
147 if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0'))
148 MC_init_dot_output();
151 //parmap = xbt_parmap_mc_new(xbt_os_get_numcores(), XBT_PARMAP_DEFAULT);
155 if (_sg_mc_visited > 0 || _sg_mc_liveness || _sg_mc_termination || mc_mode == MC_MODE_SERVER) {
156 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
157 MC_ignore_local_variable("e", "*");
158 MC_ignore_local_variable("__ex_cleanup", "*");
159 MC_ignore_local_variable("__ex_mctx_en", "*");
160 MC_ignore_local_variable("__ex_mctx_me", "*");
161 MC_ignore_local_variable("__xbt_ex_ctx_ptr", "*");
162 MC_ignore_local_variable("_log_ev", "*");
163 MC_ignore_local_variable("_throw_ctx", "*");
164 MC_ignore_local_variable("ctx", "*");
166 MC_ignore_local_variable("self", "simcall_BODY_mc_snapshot");
167 MC_ignore_local_variable("next_cont"
168 "ext", "smx_ctx_sysv_suspend_serial");
169 MC_ignore_local_variable("i", "smx_ctx_sysv_suspend_serial");
171 /* Ignore local variable about time used for tracing */
172 MC_ignore_local_variable("start_time", "*");
175 MC_ignore_global_variable("mc_model_checker");
176 MC_ignore_global_variable("initial_communications_pattern");
177 MC_ignore_global_variable("incomplete_communications_pattern");
178 MC_ignore_global_variable("nb_comm_pattern");
180 /* MC __thread variables: */
181 MC_ignore_global_variable("mc_diff_info");
182 MC_ignore_global_variable("mc_comp_times");
183 MC_ignore_global_variable("mc_snapshot_comparison_time");
185 /* This MC state is used in MC replay as well: */
186 MC_ignore_global_variable("mc_time");
188 /* Static variable used for tracing */
189 MC_ignore_global_variable("counter");
192 MC_ignore_global_variable("smx_total_comms");
194 if (mc_mode == MC_MODE_STANDALONE || mc_mode == MC_MODE_CLIENT) {
195 /* Those requests are handled on the client side and propagated by message
198 MC_ignore_heap(mc_time, MC_smx_get_maxpid() * sizeof(double));
200 smx_process_t process;
201 xbt_swag_foreach(process, simix_global->process_list) {
202 MC_ignore_heap(&(process->process_hookup), sizeof(process->process_hookup));
208 mmalloc_set_current_heap(heap);
211 /******************************* Core of MC *******************************/
212 /**************************************************************************/
214 static void MC_modelcheck_comm_determinism_init(void)
217 if (mc_mode == MC_MODE_CLIENT) {
218 // This will move somehwere else:
219 MC_client_handle_messages();
222 xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
224 /* Create exploration stack */
225 mc_stack = xbt_fifo_new();
229 MC_pre_modelcheck_comm_determinism();
232 initial_global_state = xbt_new0(s_mc_global_t, 1);
233 initial_global_state->snapshot = MC_take_snapshot(0);
234 initial_global_state->initial_communications_pattern_done = 0;
235 initial_global_state->recv_deterministic = 1;
236 initial_global_state->send_deterministic = 1;
237 initial_global_state->recv_diff = NULL;
238 initial_global_state->send_diff = NULL;
242 MC_modelcheck_comm_determinism();
244 mmalloc_set_current_heap(heap);
247 void MC_do_the_modelcheck_for_real()
251 if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
252 // TODO, move this part in the MCer process
253 if (mc_mode == MC_MODE_SERVER)
254 MC_server_loop(mc_server);
256 XBT_INFO("Check communication determinism");
257 mc_reduce_kind = e_mc_reduce_none;
258 MC_modelcheck_comm_determinism_init();
262 else if (!_sg_mc_property_file || _sg_mc_property_file[0] == '\0') {
263 if(_sg_mc_termination)
264 mc_reduce_kind = e_mc_reduce_none;
265 else if (mc_reduce_kind == e_mc_reduce_unset)
266 mc_reduce_kind = e_mc_reduce_dpor;
268 if (mc_mode == MC_MODE_SERVER || mc_mode == MC_MODE_STANDALONE) {
269 if (_sg_mc_termination)
270 XBT_INFO("Check non progressive cycles");
272 XBT_INFO("Check a safety property");
273 MC_wait_for_requests();
274 MC_modelcheck_safety();
277 // Most of this is not needed:
280 MC_client_main_loop();
285 if (mc_reduce_kind == e_mc_reduce_unset)
286 mc_reduce_kind = e_mc_reduce_none;
287 if (mc_mode == MC_MODE_SERVER || mc_mode == MC_MODE_STANDALONE) {
288 XBT_INFO("Check the liveness property %s", _sg_mc_property_file);
289 MC_automaton_load(_sg_mc_property_file);
290 MC_modelcheck_liveness();
293 MC_client_main_loop();
307 int MC_deadlock_check()
309 if (mc_mode == MC_MODE_SERVER) {
311 if ((res = MC_protocol_send_simple_message(mc_model_checker->process.socket,
312 MC_MESSAGE_DEADLOCK_CHECK)))
313 xbt_die("Could not check deadlock state");
314 s_mc_int_message_t message;
315 ssize_t s = MC_receive_message(mc_model_checker->process.socket, &message, sizeof(message), 0);
317 xbt_die("Could not receive message");
318 else if (s != sizeof(message) || message.type != MC_MESSAGE_DEADLOCK_CHECK_REPLY) {
319 xbt_die("%s received unexpected message %s (%i, size=%i) "
320 "expected MC_MESSAGE_DEADLOCK_CHECK_REPLY (%i, size=%i)",
321 MC_mode_name(mc_mode),
322 MC_message_type_name(message.type), (int) message.type, (int) s,
323 (int) MC_MESSAGE_DEADLOCK_CHECK_REPLY, (int) sizeof(message)
327 return message.value;
330 int deadlock = FALSE;
331 smx_process_t process;
332 if (xbt_swag_size(simix_global->process_list)) {
334 MC_EACH_SIMIX_PROCESS(process,
335 if (MC_process_is_enabled(process)) {
344 void MC_handle_comm_pattern(e_mc_call_type_t call_type, smx_simcall_t req, int value, xbt_dynar_t pattern, int backtracking) {
347 case MC_CALL_TYPE_NONE:
349 case MC_CALL_TYPE_SEND:
350 case MC_CALL_TYPE_RECV:
351 MC_get_comm_pattern(pattern, req, call_type, backtracking);
353 case MC_CALL_TYPE_WAIT:
354 case MC_CALL_TYPE_WAITANY:
356 smx_synchro_t current_comm = NULL;
357 if (call_type == MC_CALL_TYPE_WAIT)
358 current_comm = simcall_comm_wait__get__comm(req);
360 current_comm = xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value, smx_synchro_t);
361 MC_complete_comm_pattern(pattern, current_comm, req->issuer->pid, backtracking);
365 xbt_die("Unexpected call type %i", (int)call_type);
371 * \brief Re-executes from the state at position start all the transitions indicated by
372 * a given model-checker stack.
373 * \param stack The stack with the transitions to execute.
374 * \param start Start index to begin the re-execution.
376 void MC_replay(xbt_fifo_t stack)
378 xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
380 int value, count = 1, j;
382 smx_simcall_t req = NULL, saved_req = NULL;
383 xbt_fifo_item_t item, start_item;
386 XBT_DEBUG("**** Begin Replay ****");
388 /* Intermediate backtracking */
389 if(_sg_mc_checkpoint > 0 || _sg_mc_termination || _sg_mc_visited > 0) {
390 start_item = xbt_fifo_get_first_item(stack);
391 state = (mc_state_t)xbt_fifo_get_item_content(start_item);
392 if(state->system_state){
393 MC_restore_snapshot(state->system_state);
394 if(_sg_mc_comms_determinism || _sg_mc_send_determinism)
395 MC_restore_communications_pattern(state);
402 /* Restore the initial state */
403 MC_restore_snapshot(initial_global_state->snapshot);
404 /* At the moment of taking the snapshot the raw heap was set, so restoring
405 * it will set it back again, we have to unset it to continue */
408 start_item = xbt_fifo_get_last_item(stack);
412 if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
413 for (j=0; j < simix_process_maxpid; j++) {
414 xbt_dynar_reset((xbt_dynar_t)xbt_dynar_get_as(incomplete_communications_pattern, j, xbt_dynar_t));
415 ((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, j, mc_list_comm_pattern_t))->index_comm = 0;
421 /* Traverse the stack from the state at position start and re-execute the transitions */
422 for (item = start_item;
423 item != xbt_fifo_get_first_item(stack);
424 item = xbt_fifo_get_prev_item(item)) {
426 state = (mc_state_t) xbt_fifo_get_item_content(item);
427 saved_req = MC_state_get_executed_request(state, &value);
430 /* because we got a copy of the executed request, we have to fetch the
431 real one, pointed by the request field of the issuer process */
433 const smx_process_t issuer = MC_smx_simcall_get_issuer(saved_req);
434 req = &issuer->simcall;
436 /* Debug information */
437 if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) {
438 req_str = MC_request_to_string(req, value, MC_REQUEST_SIMIX);
439 XBT_DEBUG("Replay: %s (%p)", req_str, state);
443 /* TODO : handle test and testany simcalls */
444 e_mc_call_type_t call = MC_CALL_TYPE_NONE;
445 if (_sg_mc_comms_determinism || _sg_mc_send_determinism)
446 call = MC_get_call_type(req);
448 MC_simcall_handle(req, value);
451 if (_sg_mc_comms_determinism || _sg_mc_send_determinism)
452 MC_handle_comm_pattern(call, req, value, NULL, 1);
455 MC_wait_for_requests();
460 /* Update statistics */
461 mc_stats->visited_states++;
462 mc_stats->executed_transitions++;
466 XBT_DEBUG("**** End Replay ****");
467 mmalloc_set_current_heap(heap);
470 void MC_replay_liveness(xbt_fifo_t stack)
473 initial_global_state->raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
475 xbt_fifo_item_t item;
476 mc_pair_t pair = NULL;
477 mc_state_t state = NULL;
478 smx_simcall_t req = NULL, saved_req = NULL;
479 int value, depth = 1;
482 XBT_DEBUG("**** Begin Replay ****");
484 /* Intermediate backtracking */
485 if(_sg_mc_checkpoint > 0) {
486 item = xbt_fifo_get_first_item(stack);
487 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
488 if(pair->graph_state->system_state){
489 MC_restore_snapshot(pair->graph_state->system_state);
495 /* Restore the initial state */
496 MC_restore_snapshot(initial_global_state->snapshot);
498 /* At the moment of taking the snapshot the raw heap was set, so restoring
499 * it will set it back again, we have to unset it to continue */
500 if (!initial_global_state->raw_mem_set)
503 /* Traverse the stack from the initial state and re-execute the transitions */
504 for (item = xbt_fifo_get_last_item(stack);
505 item != xbt_fifo_get_first_item(stack);
506 item = xbt_fifo_get_prev_item(item)) {
508 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
510 state = (mc_state_t) pair->graph_state;
512 if (pair->exploration_started) {
514 saved_req = MC_state_get_executed_request(state, &value);
516 if (saved_req != NULL) {
517 /* because we got a copy of the executed request, we have to fetch the
518 real one, pointed by the request field of the issuer process */
519 const smx_process_t issuer = MC_smx_simcall_get_issuer(saved_req);
520 req = &issuer->simcall;
522 /* Debug information */
523 if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) {
524 req_str = MC_request_to_string(req, value, MC_REQUEST_SIMIX);
525 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
531 MC_simcall_handle(req, value);
532 MC_wait_for_requests();
535 /* Update statistics */
536 mc_stats->visited_pairs++;
537 mc_stats->executed_transitions++;
543 XBT_DEBUG("**** End Replay ****");
545 if (initial_global_state->raw_mem_set)
553 * \brief Dumps the contents of a model-checker's stack and shows the actual
555 * \param stack The stack to dump
557 void MC_dump_stack_safety(xbt_fifo_t stack)
559 xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
561 MC_show_stack_safety(stack);
566 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
567 MC_state_delete(state, !state->in_visited_states ? 1 : 0);
568 mmalloc_set_current_heap(heap);
572 void MC_show_stack_safety(xbt_fifo_t stack)
574 xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
578 xbt_fifo_item_t item;
580 char *req_str = NULL;
582 for (item = xbt_fifo_get_last_item(stack);
583 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
584 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
585 req = MC_state_get_executed_request(state, &value);
587 req_str = MC_request_to_string(req, value, MC_REQUEST_EXECUTED);
588 XBT_INFO("%s", req_str);
593 mmalloc_set_current_heap(heap);
596 void MC_show_deadlock(smx_simcall_t req)
598 /*char *req_str = NULL; */
599 XBT_INFO("**************************");
600 XBT_INFO("*** DEAD-LOCK DETECTED ***");
601 XBT_INFO("**************************");
602 XBT_INFO("Locked request:");
603 /*req_str = MC_request_to_string(req);
604 XBT_INFO("%s", req_str);
605 xbt_free(req_str); */
606 XBT_INFO("Counter-example execution trace:");
607 MC_dump_stack_safety(mc_stack);
608 MC_print_statistics(mc_stats);
611 void MC_show_non_termination(void){
612 XBT_INFO("******************************************");
613 XBT_INFO("*** NON-PROGRESSIVE CYCLE DETECTED ***");
614 XBT_INFO("******************************************");
615 XBT_INFO("Counter-example execution trace:");
616 MC_dump_stack_safety(mc_stack);
617 MC_print_statistics(mc_stats);
621 void MC_show_stack_liveness(xbt_fifo_t stack)
625 xbt_fifo_item_t item;
627 char *req_str = NULL;
629 for (item = xbt_fifo_get_last_item(stack);
630 (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item))) : (NULL));
631 item = xbt_fifo_get_prev_item(item)) {
632 req = MC_state_get_executed_request(pair->graph_state, &value);
633 if (req && req->call != SIMCALL_NONE) {
634 req_str = MC_request_to_string(req, value, MC_REQUEST_EXECUTED);
635 XBT_INFO("%s", req_str);
642 void MC_dump_stack_liveness(xbt_fifo_t stack)
644 xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
646 while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
647 MC_pair_delete(pair);
648 mmalloc_set_current_heap(heap);
651 void MC_print_statistics(mc_stats_t stats)
653 if(_sg_mc_comms_determinism) {
654 if (!initial_global_state->recv_deterministic && initial_global_state->send_deterministic){
655 XBT_INFO("******************************************************");
656 XBT_INFO("**** Only-send-deterministic communication pattern ****");
657 XBT_INFO("******************************************************");
658 XBT_INFO("%s", initial_global_state->recv_diff);
659 }else if(!initial_global_state->send_deterministic && initial_global_state->recv_deterministic) {
660 XBT_INFO("******************************************************");
661 XBT_INFO("**** Only-recv-deterministic communication pattern ****");
662 XBT_INFO("******************************************************");
663 XBT_INFO("%s", initial_global_state->send_diff);
667 if (stats->expanded_pairs == 0) {
668 XBT_INFO("Expanded states = %lu", stats->expanded_states);
669 XBT_INFO("Visited states = %lu", stats->visited_states);
671 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
672 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
674 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
675 xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
676 if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0')) {
677 fprintf(dot_output, "}\n");
680 if (initial_global_state != NULL && (_sg_mc_comms_determinism || _sg_mc_send_determinism)) {
681 XBT_INFO("Send-deterministic : %s", !initial_global_state->send_deterministic ? "No" : "Yes");
682 if (_sg_mc_comms_determinism)
683 XBT_INFO("Recv-deterministic : %s", !initial_global_state->recv_deterministic ? "No" : "Yes");
685 mmalloc_set_current_heap(heap);
688 void MC_automaton_load(const char *file)
690 xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
692 if (_mc_property_automaton == NULL)
693 _mc_property_automaton = xbt_automaton_new();
695 xbt_automaton_load(_mc_property_automaton, file);
696 mmalloc_set_current_heap(heap);
699 static void register_symbol(xbt_automaton_propositional_symbol_t symbol)
701 if (mc_mode != MC_MODE_CLIENT)
703 s_mc_register_symbol_message_t message;
704 message.type = MC_MESSAGE_REGISTER_SYMBOL;
705 const char* name = xbt_automaton_propositional_symbol_get_name(symbol);
706 if (strlen(name) + 1 > sizeof(message.name))
707 xbt_die("Symbol is too long");
708 strncpy(message.name, name, sizeof(message.name));
709 message.callback = xbt_automaton_propositional_symbol_get_callback(symbol);
710 message.data = xbt_automaton_propositional_symbol_get_data(symbol);
711 MC_client_send_message(&message, sizeof(message));
714 void MC_automaton_new_propositional_symbol(const char *id, int(*fct)(void))
716 xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
718 if (_mc_property_automaton == NULL)
719 _mc_property_automaton = xbt_automaton_new();
721 xbt_automaton_propositional_symbol_t symbol = xbt_automaton_propositional_symbol_new(_mc_property_automaton, id, fct);
722 register_symbol(symbol);
723 mmalloc_set_current_heap(heap);
726 void MC_automaton_new_propositional_symbol_pointer(const char *id, int* value)
728 xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
729 if (_mc_property_automaton == NULL)
730 _mc_property_automaton = xbt_automaton_new();
731 xbt_automaton_propositional_symbol_t symbol = xbt_automaton_propositional_symbol_new_pointer(_mc_property_automaton, id, value);
732 register_symbol(symbol);
733 mmalloc_set_current_heap(heap);
736 void MC_automaton_new_propositional_symbol_callback(const char* id,
737 xbt_automaton_propositional_symbol_callback_type callback,
738 void* data, xbt_automaton_propositional_symbol_free_function_type free_function)
740 xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
741 if (_mc_property_automaton == NULL)
742 _mc_property_automaton = xbt_automaton_new();
743 xbt_automaton_propositional_symbol_t symbol = xbt_automaton_propositional_symbol_new_callback(
744 _mc_property_automaton, id, callback, data, free_function);
745 register_symbol(symbol);
746 mmalloc_set_current_heap(heap);
749 // TODO, fix cross-process access (this function is not used)
750 void MC_dump_stacks(FILE* file)
752 xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
755 stack_region_t current_stack;
757 xbt_dynar_foreach(stacks_areas, cursor, current_stack) {
758 unw_context_t * context = (unw_context_t *)current_stack->context;
759 fprintf(file, "Stack %i:\n", nstack);
764 unw_init_local (&c, context);
767 const char * name = !unw_get_proc_name(&c, buffer, 100, &off) ? buffer : "?";
768 #if defined(__x86_64__)
771 unw_get_reg(&c, UNW_X86_64_RIP, &rip);
772 unw_get_reg(&c, UNW_X86_64_RSP, &rsp);
773 fprintf(file, " %i: %s (RIP=0x%" PRIx64 " RSP=0x%" PRIx64 ")\n",
774 nframe, name, rip, rsp);
776 fprintf(file, " %i: %s\n", nframe, name);
779 } while(unw_step(&c));
783 mmalloc_set_current_heap(heap);
787 double MC_process_clock_get(smx_process_t process)
791 return mc_time[process->pid];
799 void MC_process_clock_add(smx_process_t process, double amount)
801 mc_time[process->pid] += amount;
804 void MC_report_assertion_error(void)
806 XBT_INFO("**************************");
807 XBT_INFO("*** PROPERTY NOT VALID ***");
808 XBT_INFO("**************************");
809 XBT_INFO("Counter-example execution trace:");
810 MC_record_dump_path(mc_stack);
811 MC_dump_stack_safety(mc_stack);
812 MC_print_statistics(mc_stats);