1 /* Copyright (c) 2008-2013. 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. */
13 #include "simgrid/sg_config.h"
14 #include "../surf/surf_private.h"
15 #include "../simix/smx_private.h"
16 #include "../xbt/mmalloc/mmprivate.h"
18 #include "mc_private.h"
19 #include "xbt/automaton.h"
22 XBT_LOG_NEW_CATEGORY(mc, "All MC categories");
23 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
24 "Logging specific to MC (global)");
26 /* Configuration support */
27 e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset;
29 int _sg_do_model_check = 0;
30 int _sg_mc_checkpoint=0;
31 char* _sg_mc_property_file=NULL;
33 int _sg_mc_max_depth=1000;
35 char *_sg_mc_dot_output_file = NULL;
37 int user_max_depth_reached = 0;
39 void _mc_cfg_cb_reduce(const char *name, int pos) {
40 if (_sg_cfg_init_status && !_sg_do_model_check) {
41 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.");
43 char *val= xbt_cfg_get_string(_sg_cfg_set, name);
44 if (!strcasecmp(val,"none")) {
45 mc_reduce_kind = e_mc_reduce_none;
46 } else if (!strcasecmp(val,"dpor")) {
47 mc_reduce_kind = e_mc_reduce_dpor;
49 xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",name);
53 void _mc_cfg_cb_checkpoint(const char *name, int pos) {
54 if (_sg_cfg_init_status && !_sg_do_model_check) {
55 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.");
57 _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name);
59 void _mc_cfg_cb_property(const char *name, int pos) {
60 if (_sg_cfg_init_status && !_sg_do_model_check) {
61 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.");
63 _sg_mc_property_file= xbt_cfg_get_string(_sg_cfg_set, name);
66 void _mc_cfg_cb_timeout(const char *name, int pos) {
67 if (_sg_cfg_init_status && !_sg_do_model_check) {
68 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.");
70 _sg_mc_timeout= xbt_cfg_get_boolean(_sg_cfg_set, name);
73 void _mc_cfg_cb_max_depth(const char *name, int pos) {
74 if (_sg_cfg_init_status && !_sg_do_model_check) {
75 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.");
77 _sg_mc_max_depth= xbt_cfg_get_int(_sg_cfg_set, name);
80 void _mc_cfg_cb_visited(const char *name, int pos) {
81 if (_sg_cfg_init_status && !_sg_do_model_check) {
82 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.");
84 _sg_mc_visited= xbt_cfg_get_int(_sg_cfg_set, name);
87 void _mc_cfg_cb_dot_output(const char *name, int pos) {
88 if (_sg_cfg_init_status && !_sg_do_model_check) {
89 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.");
91 _sg_mc_dot_output_file= xbt_cfg_get_string(_sg_cfg_set, name);
94 /* MC global data structures */
95 mc_state_t mc_current_state = NULL;
96 char mc_replay_mode = FALSE;
97 double *mc_time = NULL;
98 __thread mc_comparison_times_t mc_comp_times = NULL;
99 __thread double mc_snapshot_comparison_time;
100 mc_stats_t mc_stats = NULL;
103 xbt_fifo_t mc_stack_safety = NULL;
104 mc_global_t initial_state_safety = NULL;
107 xbt_fifo_t mc_stack_liveness = NULL;
108 mc_global_t initial_state_liveness = NULL;
111 xbt_automaton_t _mc_property_automaton = NULL;
114 mc_object_info_t mc_libsimgrid_info = NULL;
115 mc_object_info_t mc_binary_info = NULL;
117 /* Ignore mechanism */
118 xbt_dynar_t mc_stack_comparison_ignore;
119 xbt_dynar_t mc_data_bss_comparison_ignore;
120 extern xbt_dynar_t mc_heap_comparison_ignore;
121 extern xbt_dynar_t stacks_areas;
124 FILE *dot_output = NULL;
125 const char* colors[13];
128 /******************************* DWARF Information *******************************/
129 /**********************************************************************************/
131 /************************** Free functions *************************/
133 static void dw_location_free(dw_location_t l){
135 if(l->type == e_dw_loclist)
136 xbt_dynar_free(&(l->location.loclist));
137 else if(l->type == e_dw_compose)
138 xbt_dynar_free(&(l->location.compose));
139 else if(l->type == e_dw_arithmetic)
140 xbt_free(l->location.arithmetic);
146 static void dw_location_entry_free(dw_location_entry_t e){
147 dw_location_free(e->location);
151 void dw_type_free(dw_type_t t){
153 xbt_free(t->dw_type_id);
154 xbt_dynar_free(&(t->members));
158 static void dw_type_free_voidp(void *t){
159 dw_type_free((dw_type_t) * (void **) t);
162 void dw_variable_free(dw_variable_t v){
165 xbt_free(v->type_origin);
167 dw_location_free(v->address.location);
172 void dw_variable_free_voidp(void *t){
173 dw_variable_free((dw_variable_t) * (void **) t);
178 mc_object_info_t MC_new_object_info(void) {
179 mc_object_info_t res = xbt_new0(s_mc_object_info_t, 1);
180 res->local_variables = xbt_dict_new_homogeneous(NULL);
181 res->global_variables = xbt_dynar_new(sizeof(dw_variable_t), dw_variable_free_voidp);
182 res->types = xbt_dict_new_homogeneous(NULL);
186 void MC_free_object_info(mc_object_info_t* info) {
187 xbt_free(&(*info)->file_name);
188 xbt_dict_free(&(*info)->local_variables);
189 xbt_dynar_free(&(*info)->global_variables);
190 xbt_dict_free(&(*info)->types);
195 /*************************************************************************/
197 static dw_location_t MC_dwarf_get_location(xbt_dict_t location_list, char *expr){
199 dw_location_t loc = xbt_new0(s_dw_location_t, 1);
201 if(location_list != NULL){
203 char *key = bprintf("%d", (int)strtoul(expr, NULL, 16));
204 loc->type = e_dw_loclist;
205 loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key);
206 if(loc->location.loclist == NULL)
207 XBT_INFO("Key not found in loclist");
214 char *tok = NULL, *tok2 = NULL;
216 xbt_dynar_t tokens1 = xbt_str_split(expr, ";");
219 loc->type = e_dw_compose;
220 loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL);
222 while(cursor < xbt_dynar_length(tokens1)){
224 tok = xbt_dynar_get_as(tokens1, cursor, char*);
225 tokens2 = xbt_str_split(tok, " ");
226 tok2 = xbt_dynar_get_as(tokens2, 0, char*);
228 if(strncmp(tok2, "DW_OP_reg", 9) == 0){
229 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
230 new_element->type = e_dw_register;
231 new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg"));
232 xbt_dynar_push(loc->location.compose, &new_element);
233 }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){
234 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
235 new_element->type = e_dw_fbregister_op;
236 new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
237 xbt_dynar_push(loc->location.compose, &new_element);
238 }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){
239 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
240 new_element->type = e_dw_bregister_op;
241 new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg"));
242 new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
243 xbt_dynar_push(loc->location.compose, &new_element);
244 }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){
245 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
246 new_element->type = e_dw_lit;
247 new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit"));
248 xbt_dynar_push(loc->location.compose, &new_element);
249 }else if(strcmp(tok2, "DW_OP_piece:") == 0){
250 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
251 new_element->type = e_dw_piece;
252 new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
253 xbt_dynar_push(loc->location.compose, &new_element);
254 }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){
255 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
256 new_element->type = e_dw_plus_uconst;
257 new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char *));
258 xbt_dynar_push(loc->location.compose, &new_element);
259 }else if(strcmp(tok, "DW_OP_abs") == 0 ||
260 strcmp(tok, "DW_OP_and") == 0 ||
261 strcmp(tok, "DW_OP_div") == 0 ||
262 strcmp(tok, "DW_OP_minus") == 0 ||
263 strcmp(tok, "DW_OP_mod") == 0 ||
264 strcmp(tok, "DW_OP_mul") == 0 ||
265 strcmp(tok, "DW_OP_neg") == 0 ||
266 strcmp(tok, "DW_OP_not") == 0 ||
267 strcmp(tok, "DW_OP_or") == 0 ||
268 strcmp(tok, "DW_OP_plus") == 0){
269 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
270 new_element->type = e_dw_arithmetic;
271 new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_"));
272 xbt_dynar_push(loc->location.compose, &new_element);
273 }else if(strcmp(tok, "DW_OP_stack_value") == 0){
274 }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){
275 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
276 new_element->type = e_dw_deref;
277 new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*));
278 xbt_dynar_push(loc->location.compose, &new_element);
279 }else if(strcmp(tok, "DW_OP_deref") == 0){
280 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
281 new_element->type = e_dw_deref;
282 new_element->location.deref_size = sizeof(void *);
283 xbt_dynar_push(loc->location.compose, &new_element);
284 }else if(strcmp(tok2, "DW_OP_constu:") == 0){
285 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
286 new_element->type = e_dw_uconstant;
287 new_element->location.uconstant.bytes = 1;
288 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
289 xbt_dynar_push(loc->location.compose, &new_element);
290 }else if(strcmp(tok2, "DW_OP_consts:") == 0){
291 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
292 new_element->type = e_dw_sconstant;
293 new_element->location.sconstant.bytes = 1;
294 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
295 xbt_dynar_push(loc->location.compose, &new_element);
296 }else if(strcmp(tok2, "DW_OP_const1u:") == 0 ||
297 strcmp(tok2, "DW_OP_const2u:") == 0 ||
298 strcmp(tok2, "DW_OP_const4u:") == 0 ||
299 strcmp(tok2, "DW_OP_const8u:") == 0){
300 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
301 new_element->type = e_dw_uconstant;
302 new_element->location.uconstant.bytes = tok2[11] - '0';
303 new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
304 xbt_dynar_push(loc->location.compose, &new_element);
305 }else if(strcmp(tok, "DW_OP_const1s") == 0 ||
306 strcmp(tok, "DW_OP_const2s") == 0 ||
307 strcmp(tok, "DW_OP_const4s") == 0 ||
308 strcmp(tok, "DW_OP_const8s") == 0){
309 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
310 new_element->type = e_dw_sconstant;
311 new_element->location.sconstant.bytes = tok2[11] - '0';
312 new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)));
313 xbt_dynar_push(loc->location.compose, &new_element);
315 dw_location_t new_element = xbt_new0(s_dw_location_t, 1);
316 new_element->type = e_dw_unsupported;
317 xbt_dynar_push(loc->location.compose, &new_element);
321 xbt_dynar_free(&tokens2);
325 xbt_dynar_free(&tokens1);
334 /** \brief Finds a frame (DW_TAG_subprogram) from an DWARF offset in the rangd of this subprogram
336 * The offset can be an offset of a child DW_TAG_variable.
338 static dw_frame_t MC_dwarf_get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){
340 xbt_dict_cursor_t cursor = NULL;
344 xbt_dict_foreach(all_variables, cursor, name, res) {
345 if(offset >= res->start && offset < res->end){
346 xbt_dict_cursor_free(&cursor);
351 xbt_dict_cursor_free(&cursor);
356 static dw_variable_t MC_dwarf_get_variable_by_name(dw_frame_t frame, char *var){
358 unsigned int cursor = 0;
359 dw_variable_t current_var;
361 xbt_dynar_foreach(frame->variables, cursor, current_var){
362 if(strcmp(var, current_var->name) == 0)
369 static int MC_dwarf_get_variable_index(xbt_dynar_t variables, char* var, void *address){
371 if(xbt_dynar_is_empty(variables))
374 unsigned int cursor = 0;
376 int end = xbt_dynar_length(variables) - 1;
377 dw_variable_t var_test = NULL;
380 cursor = (start + end) / 2;
381 var_test = (dw_variable_t)xbt_dynar_get_as(variables, cursor, dw_variable_t);
382 if(strcmp(var_test->name, var) < 0){
384 }else if(strcmp(var_test->name, var) > 0){
387 if(address){ /* global variable */
388 if(var_test->address.address == address)
390 if(var_test->address.address > address)
394 }else{ /* local variable */
400 if(strcmp(var_test->name, var) == 0){
401 if(address && var_test->address.address < address)
405 }else if(strcmp(var_test->name, var) < 0)
412 void MC_dwarf_register_global_variable(mc_object_info_t info, dw_variable_t variable) {
413 int index = MC_dwarf_get_variable_index(info->global_variables, variable->name, variable->address.address);
415 xbt_dynar_insert_at(info->global_variables, index, &variable);
419 void MC_dwarf_register_non_global_variable(mc_object_info_t info, dw_frame_t frame, dw_variable_t variable) {
420 xbt_assert(frame, "Frame is NULL");
421 int index = MC_dwarf_get_variable_index(frame->variables, variable->name, NULL);
423 xbt_dynar_insert_at(frame->variables, index, &variable);
427 void MC_dwarf_register_variable(mc_object_info_t info, dw_frame_t frame, dw_variable_t variable) {
429 MC_dwarf_register_global_variable(info, variable);
431 xbt_die("No frame for this local variable");
433 MC_dwarf_register_non_global_variable(info, frame, variable);
436 /******************************* Ignore mechanism *******************************/
437 /*********************************************************************************/
439 xbt_dynar_t mc_checkpoint_ignore;
441 typedef struct s_mc_stack_ignore_variable{
444 }s_mc_stack_ignore_variable_t, *mc_stack_ignore_variable_t;
446 typedef struct s_mc_data_bss_ignore_variable{
448 }s_mc_data_bss_ignore_variable_t, *mc_data_bss_ignore_variable_t;
450 /**************************** Free functions ******************************/
452 static void stack_ignore_variable_free(mc_stack_ignore_variable_t v){
453 xbt_free(v->var_name);
458 static void stack_ignore_variable_free_voidp(void *v){
459 stack_ignore_variable_free((mc_stack_ignore_variable_t) * (void **) v);
462 void heap_ignore_region_free(mc_heap_ignore_region_t r){
466 void heap_ignore_region_free_voidp(void *r){
467 heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r);
470 static void data_bss_ignore_variable_free(mc_data_bss_ignore_variable_t v){
475 static void data_bss_ignore_variable_free_voidp(void *v){
476 data_bss_ignore_variable_free((mc_data_bss_ignore_variable_t) * (void **) v);
479 static void checkpoint_ignore_region_free(mc_checkpoint_ignore_region_t r){
483 static void checkpoint_ignore_region_free_voidp(void *r){
484 checkpoint_ignore_region_free((mc_checkpoint_ignore_region_t) * (void **) r);
487 /***********************************************************************/
489 void MC_ignore_heap(void *address, size_t size){
491 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
495 mc_heap_ignore_region_t region = NULL;
496 region = xbt_new0(s_mc_heap_ignore_region_t, 1);
497 region->address = address;
500 region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
502 if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){
503 region->fragment = -1;
504 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore++;
506 region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type;
507 ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment]++;
510 if(mc_heap_comparison_ignore == NULL){
511 mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp);
512 xbt_dynar_push(mc_heap_comparison_ignore, ®ion);
518 unsigned int cursor = 0;
519 mc_heap_ignore_region_t current_region = NULL;
521 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
524 cursor = (start + end) / 2;
525 current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
526 if(current_region->address == address){
527 heap_ignore_region_free(region);
531 }else if(current_region->address < address){
538 if(current_region->address < address)
539 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion);
541 xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion);
547 void MC_remove_ignore_heap(void *address, size_t size){
549 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
553 unsigned int cursor = 0;
555 int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1;
556 mc_heap_ignore_region_t region;
557 int ignore_found = 0;
560 cursor = (start + end) / 2;
561 region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t);
562 if(region->address == address){
565 }else if(region->address < address){
568 if((char * )region->address <= ((char *)address + size)){
577 if(ignore_found == 1){
578 xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL);
579 MC_remove_ignore_heap(address, size);
587 void MC_ignore_global_variable(const char *name){
589 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
593 if(mc_libsimgrid_info){
595 unsigned int cursor = 0;
596 dw_variable_t current_var;
598 int end = xbt_dynar_length(mc_libsimgrid_info->global_variables) - 1;
601 cursor = (start + end) /2;
602 current_var = (dw_variable_t)xbt_dynar_get_as(mc_libsimgrid_info->global_variables, cursor, dw_variable_t);
603 if(strcmp(current_var->name, name) == 0){
604 xbt_dynar_remove_at(mc_libsimgrid_info->global_variables, cursor, NULL);
606 end = xbt_dynar_length(mc_libsimgrid_info->global_variables) - 1;
607 }else if(strcmp(current_var->name, name) < 0){
616 if(mc_data_bss_comparison_ignore == NULL)
617 mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), data_bss_ignore_variable_free_voidp);
619 mc_data_bss_ignore_variable_t var = NULL;
620 var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1);
621 var->name = strdup(name);
623 if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){
625 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var);
629 unsigned int cursor = 0;
631 int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1;
632 mc_data_bss_ignore_variable_t current_var = NULL;
635 cursor = (start + end) / 2;
636 current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t);
637 if(strcmp(current_var->name, name) == 0){
638 data_bss_ignore_variable_free(var);
642 }else if(strcmp(current_var->name, name) < 0){
649 if(strcmp(current_var->name, name) < 0)
650 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var);
652 xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var);
661 void MC_ignore_local_variable(const char *var_name, const char *frame_name){
663 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
667 if(mc_libsimgrid_info){
668 unsigned int cursor = 0;
669 dw_variable_t current_var;
671 if(strcmp(frame_name, "*") == 0){ /* Remove variable in all frames */
672 xbt_dict_cursor_t dict_cursor;
673 char *current_frame_name;
675 xbt_dict_foreach(mc_libsimgrid_info->local_variables, dict_cursor, current_frame_name, frame){
677 end = xbt_dynar_length(frame->variables) - 1;
679 cursor = (start + end) / 2;
680 current_var = (dw_variable_t)xbt_dynar_get_as(frame->variables, cursor, dw_variable_t);
681 if(strcmp(current_var->name, var_name) == 0){
682 xbt_dynar_remove_at(frame->variables, cursor, NULL);
684 end = xbt_dynar_length(frame->variables) - 1;
685 }else if(strcmp(current_var->name, var_name) < 0){
692 xbt_dict_foreach(mc_binary_info->local_variables, dict_cursor, current_frame_name, frame){
694 end = xbt_dynar_length(frame->variables) - 1;
696 cursor = (start + end) / 2;
697 current_var = (dw_variable_t)xbt_dynar_get_as(frame->variables, cursor, dw_variable_t);
698 if(strcmp(current_var->name, var_name) == 0){
699 xbt_dynar_remove_at(frame->variables, cursor, NULL);
701 end = xbt_dynar_length(frame->variables) - 1;
702 }else if(strcmp(current_var->name, var_name) < 0){
710 xbt_dynar_t variables_list = ((dw_frame_t)xbt_dict_get_or_null(
711 mc_libsimgrid_info->local_variables, frame_name))->variables;
713 end = xbt_dynar_length(variables_list) - 1;
715 cursor = (start + end) / 2;
716 current_var = (dw_variable_t)xbt_dynar_get_as(variables_list, cursor, dw_variable_t);
717 if(strcmp(current_var->name, var_name) == 0){
718 xbt_dynar_remove_at(variables_list, cursor, NULL);
720 end = xbt_dynar_length(variables_list) - 1;
721 }else if(strcmp(current_var->name, var_name) < 0){
730 if(mc_stack_comparison_ignore == NULL)
731 mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), stack_ignore_variable_free_voidp);
733 mc_stack_ignore_variable_t var = NULL;
734 var = xbt_new0(s_mc_stack_ignore_variable_t, 1);
735 var->var_name = strdup(var_name);
736 var->frame = strdup(frame_name);
738 if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){
740 xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var);
744 unsigned int cursor = 0;
746 int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1;
747 mc_stack_ignore_variable_t current_var = NULL;
750 cursor = (start + end) / 2;
751 current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t);
752 if(strcmp(current_var->frame, frame_name) == 0){
753 if(strcmp(current_var->var_name, var_name) == 0){
754 stack_ignore_variable_free(var);
758 }else if(strcmp(current_var->var_name, var_name) < 0){
763 }else if(strcmp(current_var->frame, frame_name) < 0){
770 if(strcmp(current_var->frame, frame_name) == 0){
771 if(strcmp(current_var->var_name, var_name) < 0){
772 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
774 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
776 }else if(strcmp(current_var->frame, frame_name) < 0){
777 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var);
779 xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var);
789 void MC_new_stack_area(void *stack, char *name, void* context, size_t size){
791 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
795 if(stacks_areas == NULL)
796 stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL);
798 stack_region_t region = NULL;
799 region = xbt_new0(s_stack_region_t, 1);
800 region->address = stack;
801 region->process_name = strdup(name);
802 region->context = context;
804 region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1;
805 xbt_dynar_push(stacks_areas, ®ion);
811 void MC_ignore(void *addr, size_t size){
813 int raw_mem_set= (mmalloc_get_current_heap() == raw_heap);
817 if(mc_checkpoint_ignore == NULL)
818 mc_checkpoint_ignore = xbt_dynar_new(sizeof(mc_checkpoint_ignore_region_t), checkpoint_ignore_region_free_voidp);
820 mc_checkpoint_ignore_region_t region = xbt_new0(s_mc_checkpoint_ignore_region_t, 1);
824 if(xbt_dynar_is_empty(mc_checkpoint_ignore)){
825 xbt_dynar_push(mc_checkpoint_ignore, ®ion);
828 unsigned int cursor = 0;
830 int end = xbt_dynar_length(mc_checkpoint_ignore) -1;
831 mc_checkpoint_ignore_region_t current_region = NULL;
834 cursor = (start + end) / 2;
835 current_region = (mc_checkpoint_ignore_region_t)xbt_dynar_get_as(mc_checkpoint_ignore, cursor, mc_checkpoint_ignore_region_t);
836 if(current_region->addr == addr){
837 if(current_region->size == size){
838 checkpoint_ignore_region_free(region);
842 }else if(current_region->size < size){
847 }else if(current_region->addr < addr){
854 if(current_region->addr == addr){
855 if(current_region->size < size){
856 xbt_dynar_insert_at(mc_checkpoint_ignore, cursor + 1, ®ion);
858 xbt_dynar_insert_at(mc_checkpoint_ignore, cursor, ®ion);
860 }else if(current_region->addr < addr){
861 xbt_dynar_insert_at(mc_checkpoint_ignore, cursor + 1, ®ion);
863 xbt_dynar_insert_at(mc_checkpoint_ignore, cursor, ®ion);
871 /******************************* Initialisation of MC *******************************/
872 /*********************************************************************************/
874 static void MC_dump_ignored_local_variables(void){
876 if(mc_stack_comparison_ignore == NULL || xbt_dynar_is_empty(mc_stack_comparison_ignore))
879 unsigned int cursor = 0;
880 mc_stack_ignore_variable_t current_var;
882 xbt_dynar_foreach(mc_stack_comparison_ignore, cursor, current_var){
883 MC_ignore_local_variable(current_var->var_name, current_var->frame);
886 xbt_dynar_free(&mc_stack_comparison_ignore);
887 mc_stack_comparison_ignore = NULL;
891 static void MC_dump_ignored_global_variables(void){
893 if(mc_data_bss_comparison_ignore == NULL || xbt_dynar_is_empty(mc_data_bss_comparison_ignore))
896 unsigned int cursor = 0;
897 mc_data_bss_ignore_variable_t current_var;
899 xbt_dynar_foreach(mc_data_bss_comparison_ignore, cursor, current_var){
900 MC_ignore_global_variable(current_var->name);
903 xbt_dynar_free(&mc_data_bss_comparison_ignore);
904 mc_data_bss_comparison_ignore = NULL;
908 static void MC_init_debug_info();
909 static void MC_init_debug_info() {
910 XBT_INFO("Get debug information ...");
912 memory_map_t maps = MC_get_memory_map();
914 /* Get local variables for state equality detection */
915 mc_binary_info = MC_find_object_info(maps, xbt_binary_name);
916 mc_libsimgrid_info = MC_find_object_info(maps, libsimgrid_path);
918 MC_free_memory_map(maps);
919 XBT_INFO("Get debug information done !");
924 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
928 /* Initialize the data structures that must be persistent across every
929 iteration of the model-checker (in RAW memory) */
933 MC_init_memory_map_info();
934 MC_init_debug_info();
936 /* Remove variables ignored before getting list of variables */
937 MC_dump_ignored_local_variables();
938 MC_dump_ignored_global_variables();
941 parmap = xbt_parmap_mc_new(xbt_os_get_numcores(), XBT_PARMAP_DEFAULT);
945 /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
946 MC_ignore_local_variable("e", "*");
947 MC_ignore_local_variable("__ex_cleanup", "*");
948 MC_ignore_local_variable("__ex_mctx_en", "*");
949 MC_ignore_local_variable("__ex_mctx_me", "*");
950 MC_ignore_local_variable("__xbt_ex_ctx_ptr", "*");
951 MC_ignore_local_variable("_log_ev", "*");
952 MC_ignore_local_variable("_throw_ctx", "*");
953 MC_ignore_local_variable("ctx", "*");
955 MC_ignore_local_variable("next_context", "smx_ctx_sysv_suspend_serial");
956 MC_ignore_local_variable("i", "smx_ctx_sysv_suspend_serial");
958 /* Ignore local variable about time used for tracing */
959 MC_ignore_local_variable("start_time", "*");
961 MC_ignore_global_variable("mc_comp_times");
962 MC_ignore_global_variable("mc_snapshot_comparison_time");
963 MC_ignore_global_variable("mc_time");
964 MC_ignore_global_variable("smpi_current_rank");
965 MC_ignore_global_variable("counter"); /* Static variable used for tracing */
966 MC_ignore_global_variable("maestro_stack_start");
967 MC_ignore_global_variable("maestro_stack_end");
969 MC_ignore_heap(&(simix_global->process_to_run), sizeof(simix_global->process_to_run));
970 MC_ignore_heap(&(simix_global->process_that_ran), sizeof(simix_global->process_that_ran));
971 MC_ignore_heap(simix_global->process_to_run, sizeof(*(simix_global->process_to_run)));
972 MC_ignore_heap(simix_global->process_that_ran, sizeof(*(simix_global->process_that_ran)));
974 smx_process_t process;
975 xbt_swag_foreach(process, simix_global->process_list){
976 MC_ignore_heap(&(process->process_hookup), sizeof(process->process_hookup));
984 static void MC_init_dot_output(){ /* FIXME : more colors */
988 colors[2] = "green3";
989 colors[3] = "goldenrod";
991 colors[5] = "purple";
992 colors[6] = "magenta";
993 colors[7] = "turquoise4";
994 colors[8] = "gray25";
995 colors[9] = "forestgreen";
996 colors[10] = "hotpink";
997 colors[11] = "lightblue";
1000 dot_output = fopen(_sg_mc_dot_output_file, "w");
1002 if(dot_output == NULL){
1003 perror("Error open dot output file");
1007 fprintf(dot_output, "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");
1011 /******************************* Core of MC *******************************/
1012 /**************************************************************************/
1014 void MC_do_the_modelcheck_for_real() {
1017 mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
1020 if (!_sg_mc_property_file || _sg_mc_property_file[0]=='\0') {
1021 if (mc_reduce_kind==e_mc_reduce_unset)
1022 mc_reduce_kind=e_mc_reduce_dpor;
1024 XBT_INFO("Check a safety property");
1025 MC_modelcheck_safety();
1029 if (mc_reduce_kind==e_mc_reduce_unset)
1030 mc_reduce_kind=e_mc_reduce_none;
1032 XBT_INFO("Check the liveness property %s",_sg_mc_property_file);
1033 MC_automaton_load(_sg_mc_property_file);
1034 MC_modelcheck_liveness();
1038 void MC_modelcheck_safety(void)
1040 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1042 /* Check if MC is already initialized */
1043 if (initial_state_safety)
1046 mc_time = xbt_new0(double, simix_process_maxpid);
1048 /* mc_time refers to clock for each process -> ignore it for heap comparison */
1049 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
1051 /* Initialize the data structures that must be persistent across every
1052 iteration of the model-checker (in RAW memory) */
1056 /* Initialize statistics */
1057 mc_stats = xbt_new0(s_mc_stats_t, 1);
1058 mc_stats->state_size = 1;
1060 /* Create exploration stack */
1061 mc_stack_safety = xbt_fifo_new();
1063 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0'))
1064 MC_init_dot_output();
1068 if(_sg_mc_visited > 0){
1072 MC_init_memory_map_info();
1073 MC_init_debug_info();
1080 /* Save the initial state */
1081 initial_state_safety = xbt_new0(s_mc_global_t, 1);
1082 initial_state_safety->snapshot = MC_take_snapshot(0);
1083 initial_state_safety->initial_communications_pattern_done = 0;
1084 initial_state_safety->comm_deterministic = 1;
1085 initial_state_safety->send_deterministic = 1;
1097 void MC_modelcheck_liveness(){
1099 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1103 mc_time = xbt_new0(double, simix_process_maxpid);
1105 /* mc_time refers to clock for each process -> ignore it for heap comparison */
1106 MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
1110 /* Initialize statistics */
1111 mc_stats = xbt_new0(s_mc_stats_t, 1);
1112 mc_stats->state_size = 1;
1114 /* Create exploration stack */
1115 mc_stack_liveness = xbt_fifo_new();
1117 /* Create the initial state */
1118 initial_state_liveness = xbt_new0(s_mc_global_t, 1);
1120 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0'))
1121 MC_init_dot_output();
1128 MC_print_statistics(mc_stats);
1145 int SIMIX_pre_mc_random(smx_simcall_t simcall, int min, int max){
1147 return simcall->mc_value;
1151 int MC_random(int min, int max)
1153 /*FIXME: return mc_current_state->executed_transition->random.value;*/
1154 return simcall_mc_random(min, max);
1158 * \brief Schedules all the process that are ready to run
1160 void MC_wait_for_requests(void)
1162 smx_process_t process;
1166 while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
1167 SIMIX_process_runall();
1168 xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
1169 req = &process->simcall;
1170 if (req->call != SIMCALL_NONE && !MC_request_is_visible(req))
1171 SIMIX_simcall_pre(req, 0);
1176 int MC_deadlock_check()
1178 int deadlock = FALSE;
1179 smx_process_t process;
1180 if(xbt_swag_size(simix_global->process_list)){
1182 xbt_swag_foreach(process, simix_global->process_list){
1183 if(process->simcall.call != SIMCALL_NONE
1184 && MC_request_is_enabled(&process->simcall)){
1194 * \brief Re-executes from the state at position start all the transitions indicated by
1195 * a given model-checker stack.
1196 * \param stack The stack with the transitions to execute.
1197 * \param start Start index to begin the re-execution.
1199 void MC_replay(xbt_fifo_t stack, int start)
1201 int raw_mem = (mmalloc_get_current_heap() == raw_heap);
1203 int value, i = 1, count = 1;
1205 smx_simcall_t req = NULL, saved_req = NULL;
1206 xbt_fifo_item_t item, start_item;
1208 smx_process_t process = NULL;
1209 int comm_pattern = 0;
1211 XBT_DEBUG("**** Begin Replay ****");
1214 /* Restore the initial state */
1215 MC_restore_snapshot(initial_state_safety->snapshot);
1216 /* At the moment of taking the snapshot the raw heap was set, so restoring
1217 * it will set it back again, we have to unset it to continue */
1221 start_item = xbt_fifo_get_last_item(stack);
1224 start_item = xbt_fifo_get_prev_item(start_item);
1230 xbt_dict_reset(first_enabled_state);
1231 xbt_swag_foreach(process, simix_global->process_list){
1232 if(MC_process_is_enabled(process)){
1233 char *key = bprintf("%lu", process->pid);
1234 char *data = bprintf("%d", count);
1235 xbt_dict_set(first_enabled_state, key, data, NULL);
1239 xbt_dynar_reset(communications_pattern);
1243 /* Traverse the stack from the state at position start and re-execute the transitions */
1244 for (item = start_item;
1245 item != xbt_fifo_get_first_item(stack);
1246 item = xbt_fifo_get_prev_item(item)) {
1248 state = (mc_state_t) xbt_fifo_get_item_content(item);
1249 saved_req = MC_state_get_executed_request(state, &value);
1252 char *key = bprintf("%lu", saved_req->issuer->pid);
1253 xbt_dict_remove(first_enabled_state, key);
1258 /* because we got a copy of the executed request, we have to fetch the
1259 real one, pointed by the request field of the issuer process */
1260 req = &saved_req->issuer->simcall;
1262 /* Debug information */
1263 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
1264 req_str = MC_request_to_string(req, value);
1265 XBT_DEBUG("Replay: %s (%p)", req_str, state);
1270 if(req->call == SIMCALL_COMM_ISEND)
1272 else if(req->call == SIMCALL_COMM_IRECV)
1275 SIMIX_simcall_pre(req, value);
1278 if(comm_pattern != 0){
1279 get_comm_pattern(communications_pattern, req, comm_pattern);
1285 MC_wait_for_requests();
1290 /* Insert in dict all enabled processes */
1291 xbt_swag_foreach(process, simix_global->process_list){
1292 if(MC_process_is_enabled(process) /*&& !MC_state_process_is_done(state, process)*/){
1293 char *key = bprintf("%lu", process->pid);
1294 if(xbt_dict_get_or_null(first_enabled_state, key) == NULL){
1295 char *data = bprintf("%d", count);
1296 xbt_dict_set(first_enabled_state, key, data, NULL);
1303 /* Update statistics */
1304 mc_stats->visited_states++;
1305 mc_stats->executed_transitions++;
1309 XBT_DEBUG("**** End Replay ****");
1319 void MC_replay_liveness(xbt_fifo_t stack, int all_stack)
1322 initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1326 smx_simcall_t req = NULL, saved_req = NULL;
1327 xbt_fifo_item_t item;
1332 XBT_DEBUG("**** Begin Replay ****");
1334 /* Restore the initial state */
1335 MC_restore_snapshot(initial_state_liveness->snapshot);
1337 /* At the moment of taking the snapshot the raw heap was set, so restoring
1338 * it will set it back again, we have to unset it to continue */
1339 if(!initial_state_liveness->raw_mem_set)
1344 item = xbt_fifo_get_last_item(stack);
1346 while(depth <= xbt_fifo_size(stack)){
1348 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
1349 state = (mc_state_t) pair->graph_state;
1351 if(pair->requests > 0){
1353 saved_req = MC_state_get_executed_request(state, &value);
1354 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
1356 if(saved_req != NULL){
1357 /* because we got a copy of the executed request, we have to fetch the
1358 real one, pointed by the request field of the issuer process */
1359 req = &saved_req->issuer->simcall;
1360 //XBT_DEBUG("Req->call %u", req->call);
1362 /* Debug information */
1363 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
1364 req_str = MC_request_to_string(req, value);
1365 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
1371 SIMIX_simcall_pre(req, value);
1372 MC_wait_for_requests();
1377 /* Update statistics */
1378 mc_stats->visited_pairs++;
1379 mc_stats->executed_transitions++;
1381 item = xbt_fifo_get_prev_item(item);
1386 /* Traverse the stack from the initial state and re-execute the transitions */
1387 for (item = xbt_fifo_get_last_item(stack);
1388 item != xbt_fifo_get_first_item(stack);
1389 item = xbt_fifo_get_prev_item(item)) {
1391 pair = (mc_pair_t) xbt_fifo_get_item_content(item);
1392 state = (mc_state_t) pair->graph_state;
1394 if(pair->requests > 0){
1396 saved_req = MC_state_get_executed_request(state, &value);
1397 //XBT_DEBUG("SavedReq->call %u", saved_req->call);
1399 if(saved_req != NULL){
1400 /* because we got a copy of the executed request, we have to fetch the
1401 real one, pointed by the request field of the issuer process */
1402 req = &saved_req->issuer->simcall;
1403 //XBT_DEBUG("Req->call %u", req->call);
1405 /* Debug information */
1406 if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
1407 req_str = MC_request_to_string(req, value);
1408 XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state);
1414 SIMIX_simcall_pre(req, value);
1415 MC_wait_for_requests();
1420 /* Update statistics */
1421 mc_stats->visited_pairs++;
1422 mc_stats->executed_transitions++;
1426 XBT_DEBUG("**** End Replay ****");
1428 if(initial_state_liveness->raw_mem_set)
1436 * \brief Dumps the contents of a model-checker's stack and shows the actual
1438 * \param stack The stack to dump
1440 void MC_dump_stack_safety(xbt_fifo_t stack)
1443 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1445 MC_show_stack_safety(stack);
1447 if(!_sg_mc_checkpoint){
1452 while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL)
1453 MC_state_delete(state);
1466 void MC_show_stack_safety(xbt_fifo_t stack)
1469 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1475 xbt_fifo_item_t item;
1477 char *req_str = NULL;
1479 for (item = xbt_fifo_get_last_item(stack);
1480 (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
1481 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
1482 req = MC_state_get_executed_request(state, &value);
1484 req_str = MC_request_to_string(req, value);
1485 XBT_INFO("%s", req_str);
1494 void MC_show_deadlock(smx_simcall_t req)
1496 /*char *req_str = NULL;*/
1497 XBT_INFO("**************************");
1498 XBT_INFO("*** DEAD-LOCK DETECTED ***");
1499 XBT_INFO("**************************");
1500 XBT_INFO("Locked request:");
1501 /*req_str = MC_request_to_string(req);
1502 XBT_INFO("%s", req_str);
1503 xbt_free(req_str);*/
1504 XBT_INFO("Counter-example execution trace:");
1505 MC_dump_stack_safety(mc_stack_safety);
1506 MC_print_statistics(mc_stats);
1510 void MC_show_stack_liveness(xbt_fifo_t stack){
1513 xbt_fifo_item_t item;
1515 char *req_str = NULL;
1517 for (item = xbt_fifo_get_last_item(stack);
1518 (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item)))
1519 : (NULL)); item = xbt_fifo_get_prev_item(item)) {
1520 req = MC_state_get_executed_request(pair->graph_state, &value);
1522 if(pair->requests>0){
1523 req_str = MC_request_to_string(req, value);
1524 XBT_INFO("%s", req_str);
1527 XBT_INFO("End of system requests but evolution in Büchi automaton");
1533 void MC_dump_stack_liveness(xbt_fifo_t stack){
1535 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1540 while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL)
1541 MC_pair_delete(pair);
1550 void MC_print_statistics(mc_stats_t stats)
1552 if(stats->expanded_pairs == 0){
1553 XBT_INFO("Expanded states = %lu", stats->expanded_states);
1554 XBT_INFO("Visited states = %lu", stats->visited_states);
1556 XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
1557 XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
1559 XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
1561 if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){
1562 fprintf(dot_output, "}\n");
1565 if(initial_state_safety != NULL){
1566 // XBT_INFO("Communication-deterministic : %s", !initial_state_safety->comm_deterministic ? "No" : "Yes");
1567 // XBT_INFO("Send-deterministic : %s", !initial_state_safety->send_deterministic ? "No" : "Yes");
1572 void MC_assert(int prop)
1574 if (MC_is_active() && !prop){
1575 XBT_INFO("**************************");
1576 XBT_INFO("*** PROPERTY NOT VALID ***");
1577 XBT_INFO("**************************");
1578 XBT_INFO("Counter-example execution trace:");
1579 MC_dump_stack_safety(mc_stack_safety);
1580 MC_print_statistics(mc_stats);
1586 user_max_depth_reached = 1;
1589 void MC_process_clock_add(smx_process_t process, double amount)
1591 mc_time[process->pid] += amount;
1594 double MC_process_clock_get(smx_process_t process)
1598 return mc_time[process->pid];
1606 void MC_automaton_load(const char *file){
1608 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1612 if (_mc_property_automaton == NULL)
1613 _mc_property_automaton = xbt_automaton_new();
1615 xbt_automaton_load(_mc_property_automaton,file);
1624 void MC_automaton_new_propositional_symbol(const char* id, void* fct) {
1626 int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
1630 if (_mc_property_automaton == NULL)
1631 _mc_property_automaton = xbt_automaton_new();
1633 xbt_automaton_propositional_symbol_new(_mc_property_automaton,id,fct);