X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/48ccc29a0111c1f98419d24784424e55bd48b269..606fd6074429a2b25a185ba92dce29759ab41255:/src/mc/mc_global.c diff --git a/src/mc/mc_global.c b/src/mc/mc_global.c index f35ac68dff..f9286fe511 100644 --- a/src/mc/mc_global.c +++ b/src/mc/mc_global.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2008-2013. The SimGrid Team. +/* Copyright (c) 2008-2014. The SimGrid Team. * All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it @@ -8,6 +8,7 @@ #include #include #include +#include #include #include "simgrid/sg_config.h" @@ -19,78 +20,124 @@ #include "xbt/automaton.h" #include "xbt/dict.h" -static void MC_post_process_types(mc_object_info_t info); - 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; +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_max_depth=1000; -int _sg_mc_visited=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) { +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."); + 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")) { + 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")) { + } 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); + 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) { +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."); + 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) { + +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 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."); + 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_property_file= xbt_cfg_get_string(_sg_cfg_set, name); + _sg_mc_hash = xbt_cfg_get_boolean(_sg_cfg_set, name); } -void _mc_cfg_cb_timeout(const char *name, int pos) { +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 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."); + 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_timeout= xbt_cfg_get_boolean(_sg_cfg_set, name); + _sg_mc_max_depth = xbt_cfg_get_int(_sg_cfg_set, name); } -void _mc_cfg_cb_max_depth(const char *name, int pos) { +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 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."); + 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_max_depth= xbt_cfg_get_int(_sg_cfg_set, name); + _sg_mc_visited = xbt_cfg_get_int(_sg_cfg_set, name); } -void _mc_cfg_cb_visited(const char *name, int pos) { +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 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."); + 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_visited= xbt_cfg_get_int(_sg_cfg_set, name); + _sg_mc_dot_output_file = xbt_cfg_get_string(_sg_cfg_set, name); } -void _mc_cfg_cb_dot_output(const char *name, int pos) { +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 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."); + 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_dot_output_file= xbt_cfg_get_string(_sg_cfg_set, name); + _sg_mc_comms_determinism = xbt_cfg_get_boolean(_sg_cfg_set, name); +} + +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); } /* MC global data structures */ @@ -100,1062 +147,270 @@ 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; - -/* Safety */ -xbt_fifo_t mc_stack_safety = NULL; -mc_global_t initial_state_safety = NULL; +mc_global_t initial_global_state = NULL; +xbt_fifo_t mc_stack = NULL; /* Liveness */ -xbt_fifo_t mc_stack_liveness = NULL; -mc_global_t initial_state_liveness = NULL; -int compare; - xbt_automaton_t _mc_property_automaton = NULL; /* Variables */ mc_object_info_t mc_libsimgrid_info = NULL; mc_object_info_t mc_binary_info = NULL; -/* Ignore mechanism */ -xbt_dynar_t mc_stack_comparison_ignore; -xbt_dynar_t mc_data_bss_comparison_ignore; -extern xbt_dynar_t mc_heap_comparison_ignore; -extern xbt_dynar_t stacks_areas; +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]; - - -/******************************* DWARF Information *******************************/ -/**********************************************************************************/ - -/************************** Free functions *************************/ - -static void dw_location_free(dw_location_t l){ - if(l){ - if(l->type == e_dw_loclist) - xbt_dynar_free(&(l->location.loclist)); - else if(l->type == e_dw_compose) - xbt_dynar_free(&(l->location.compose)); - else if(l->type == e_dw_arithmetic) - xbt_free(l->location.arithmetic); - - xbt_free(l); - } -} - -static void dw_location_entry_free(dw_location_entry_t e){ - dw_location_free(e->location); - xbt_free(e); -} - -void dw_type_free(dw_type_t t){ - xbt_free(t->name); - xbt_free(t->dw_type_id); - xbt_dynar_free(&(t->members)); - xbt_free(t); -} - -static void dw_type_free_voidp(void *t){ - dw_type_free((dw_type_t) * (void **) t); -} - -void dw_variable_free(dw_variable_t v){ - if(v){ - xbt_free(v->name); - xbt_free(v->type_origin); - if(!v->global) - dw_location_free(v->address.location); - xbt_free(v); - } -} - -void dw_variable_free_voidp(void *t){ - dw_variable_free((dw_variable_t) * (void **) t); -} - -// object_info - -mc_object_info_t MC_new_object_info(void) { - mc_object_info_t res = xbt_new(s_mc_object_info_t, 1); - res->file_name = NULL; - res->start_text = NULL; - res->start_data = NULL; - res->start_bss = NULL; - res->local_variables = xbt_dict_new_homogeneous(NULL); - res->global_variables = xbt_dynar_new(sizeof(dw_variable_t), dw_variable_free_voidp); - res->types = xbt_dict_new_homogeneous(NULL); - return res; -} - -void MC_free_object_info(mc_object_info_t* info) { - xbt_free(&(*info)->file_name); - xbt_dict_free(&(*info)->local_variables); - xbt_dynar_free(&(*info)->global_variables); - xbt_dict_free(&(*info)->types); - xbt_free(info); - *info = NULL; -} - -/*************************************************************************/ - -static dw_location_t MC_dwarf_get_location(xbt_dict_t location_list, char *expr){ - - dw_location_t loc = xbt_new0(s_dw_location_t, 1); - - if(location_list != NULL){ - - char *key = bprintf("%d", (int)strtoul(expr, NULL, 16)); - loc->type = e_dw_loclist; - loc->location.loclist = (xbt_dynar_t)xbt_dict_get_or_null(location_list, key); - if(loc->location.loclist == NULL) - XBT_INFO("Key not found in loclist"); - xbt_free(key); - return loc; - - }else{ - - int cursor = 0; - char *tok = NULL, *tok2 = NULL; - - xbt_dynar_t tokens1 = xbt_str_split(expr, ";"); - xbt_dynar_t tokens2; - - loc->type = e_dw_compose; - loc->location.compose = xbt_dynar_new(sizeof(dw_location_t), NULL); - - while(cursor < xbt_dynar_length(tokens1)){ - - tok = xbt_dynar_get_as(tokens1, cursor, char*); - tokens2 = xbt_str_split(tok, " "); - tok2 = xbt_dynar_get_as(tokens2, 0, char*); - - if(strncmp(tok2, "DW_OP_reg", 9) == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_register; - new_element->location.reg = atoi(strtok(tok2, "DW_OP_reg")); - xbt_dynar_push(loc->location.compose, &new_element); - }else if(strcmp(tok2, "DW_OP_fbreg:") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_fbregister_op; - new_element->location.fbreg_op = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)); - xbt_dynar_push(loc->location.compose, &new_element); - }else if(strncmp(tok2, "DW_OP_breg", 10) == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_bregister_op; - new_element->location.breg_op.reg = atoi(strtok(tok2, "DW_OP_breg")); - new_element->location.breg_op.offset = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)); - xbt_dynar_push(loc->location.compose, &new_element); - }else if(strncmp(tok2, "DW_OP_lit", 9) == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_lit; - new_element->location.lit = atoi(strtok(tok2, "DW_OP_lit")); - xbt_dynar_push(loc->location.compose, &new_element); - }else if(strcmp(tok2, "DW_OP_piece:") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_piece; - new_element->location.piece = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)); - xbt_dynar_push(loc->location.compose, &new_element); - }else if(strcmp(tok2, "DW_OP_plus_uconst:") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_plus_uconst; - new_element->location.plus_uconst = atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char *)); - xbt_dynar_push(loc->location.compose, &new_element); - }else if(strcmp(tok, "DW_OP_abs") == 0 || - strcmp(tok, "DW_OP_and") == 0 || - strcmp(tok, "DW_OP_div") == 0 || - strcmp(tok, "DW_OP_minus") == 0 || - strcmp(tok, "DW_OP_mod") == 0 || - strcmp(tok, "DW_OP_mul") == 0 || - strcmp(tok, "DW_OP_neg") == 0 || - strcmp(tok, "DW_OP_not") == 0 || - strcmp(tok, "DW_OP_or") == 0 || - strcmp(tok, "DW_OP_plus") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_arithmetic; - new_element->location.arithmetic = strdup(strtok(tok2, "DW_OP_")); - xbt_dynar_push(loc->location.compose, &new_element); - }else if(strcmp(tok, "DW_OP_stack_value") == 0){ - }else if(strcmp(tok2, "DW_OP_deref_size:") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_deref; - new_element->location.deref_size = (unsigned int short) atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*)); - xbt_dynar_push(loc->location.compose, &new_element); - }else if(strcmp(tok, "DW_OP_deref") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_deref; - new_element->location.deref_size = sizeof(void *); - xbt_dynar_push(loc->location.compose, &new_element); - }else if(strcmp(tok2, "DW_OP_constu:") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_uconstant; - new_element->location.uconstant.bytes = 1; - new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*))); - xbt_dynar_push(loc->location.compose, &new_element); - }else if(strcmp(tok2, "DW_OP_consts:") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_sconstant; - new_element->location.sconstant.bytes = 1; - new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*))); - xbt_dynar_push(loc->location.compose, &new_element); - }else if(strcmp(tok2, "DW_OP_const1u:") == 0 || - strcmp(tok2, "DW_OP_const2u:") == 0 || - strcmp(tok2, "DW_OP_const4u:") == 0 || - strcmp(tok2, "DW_OP_const8u:") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_uconstant; - new_element->location.uconstant.bytes = tok2[11] - '0'; - new_element->location.uconstant.value = (unsigned long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*))); - xbt_dynar_push(loc->location.compose, &new_element); - }else if(strcmp(tok, "DW_OP_const1s") == 0 || - strcmp(tok, "DW_OP_const2s") == 0 || - strcmp(tok, "DW_OP_const4s") == 0 || - strcmp(tok, "DW_OP_const8s") == 0){ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_sconstant; - new_element->location.sconstant.bytes = tok2[11] - '0'; - new_element->location.sconstant.value = (long int)(atoi(xbt_dynar_get_as(tokens2, xbt_dynar_length(tokens2) - 1, char*))); - xbt_dynar_push(loc->location.compose, &new_element); - }else{ - dw_location_t new_element = xbt_new0(s_dw_location_t, 1); - new_element->type = e_dw_unsupported; - xbt_dynar_push(loc->location.compose, &new_element); - } - - cursor++; - xbt_dynar_free(&tokens2); - - } - - xbt_dynar_free(&tokens1); - - return loc; - - } - -} - - -/** \brief Finds a frame (DW_TAG_subprogram) from an DWARF offset in the rangd of this subprogram - * - * The offset can be an offset of a child DW_TAG_variable. - */ -static dw_frame_t MC_dwarf_get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){ - - xbt_dict_cursor_t cursor = NULL; - char *name; - dw_frame_t res; - - xbt_dict_foreach(all_variables, cursor, name, res) { - if(offset >= res->start && offset < res->end){ - xbt_dict_cursor_free(&cursor); - return res; - } - } - - xbt_dict_cursor_free(&cursor); - return NULL; - -} - -static dw_variable_t MC_dwarf_get_variable_by_name(dw_frame_t frame, char *var){ - - unsigned int cursor = 0; - dw_variable_t current_var; - - xbt_dynar_foreach(frame->variables, cursor, current_var){ - if(strcmp(var, current_var->name) == 0) - return current_var; - } - - return NULL; -} - -static int MC_dwarf_get_variable_index(xbt_dynar_t variables, char* var, void *address){ - - if(xbt_dynar_is_empty(variables)) - return 0; - - unsigned int cursor = 0; - int start = 0; - int end = xbt_dynar_length(variables) - 1; - dw_variable_t var_test = NULL; - - while(start <= end){ - cursor = (start + end) / 2; - var_test = (dw_variable_t)xbt_dynar_get_as(variables, cursor, dw_variable_t); - if(strcmp(var_test->name, var) < 0){ - start = cursor + 1; - }else if(strcmp(var_test->name, var) > 0){ - end = cursor - 1; - }else{ - if(address){ /* global variable */ - if(var_test->address.address == address) - return -1; - if(var_test->address.address > address) - end = cursor - 1; - else - start = cursor + 1; - }else{ /* local variable */ - return -1; - } - } - } - - if(strcmp(var_test->name, var) == 0){ - if(address && var_test->address.address < address) - return cursor+1; - else - return cursor; - }else if(strcmp(var_test->name, var) < 0) - return cursor+1; - else - return cursor; - -} - -void MC_dwarf_register_global_variable(mc_object_info_t info, dw_variable_t variable) { - int index = MC_dwarf_get_variable_index(info->global_variables, variable->name, variable->address.address); - if (index != -1) - xbt_dynar_insert_at(info->global_variables, index, &variable); - // TODO, else ? -} +const char *colors[13]; -void MC_dwarf_register_non_global_variable(mc_object_info_t info, dw_frame_t frame, dw_variable_t variable) { - xbt_assert(frame, "Frame is NULL"); - int index = MC_dwarf_get_variable_index(frame->variables, variable->name, NULL); - if (index != -1) - xbt_dynar_insert_at(frame->variables, index, &variable); - // TODO, else ? -} - -void MC_dwarf_register_variable(mc_object_info_t info, dw_frame_t frame, dw_variable_t variable) { - if(variable->global) - MC_dwarf_register_global_variable(info, variable); - else if(frame==NULL) - xbt_die("No frame for this local variable"); - else - MC_dwarf_register_non_global_variable(info, frame, variable); -} -static void MC_post_process_array_size(mc_object_info_t info, dw_type_t type) { - xbt_assert(type->dw_type_id, "No base type for array <%p>%s", type->id, type->name); - dw_type_t subtype = xbt_dict_get_or_null(info->types, type->dw_type_id); - xbt_assert(subtype, "Unkown base type <%s> for array <%p>%s", type->dw_type_id, type->id, type->name); - if(subtype->type==DW_TAG_array_type && type->byte_size==0) { - MC_post_process_array_size(info, subtype); - } - type->byte_size = type->element_count*subtype->byte_size; -} - -static void MC_post_process_types(mc_object_info_t info) { - xbt_dict_cursor_t cursor; - char *origin; - dw_type_t type; - xbt_dict_foreach(info->types, cursor, origin, type){ - if(type->type==DW_TAG_array_type && type->byte_size==0) - MC_post_process_array_size(info, type); - } -} - -/******************************* Ignore mechanism *******************************/ +/******************************* Initialisation of MC *******************************/ /*********************************************************************************/ -xbt_dynar_t mc_checkpoint_ignore; - -typedef struct s_mc_stack_ignore_variable{ - char *var_name; - char *frame; -}s_mc_stack_ignore_variable_t, *mc_stack_ignore_variable_t; - -typedef struct s_mc_data_bss_ignore_variable{ - char *name; -}s_mc_data_bss_ignore_variable_t, *mc_data_bss_ignore_variable_t; - -/**************************** Free functions ******************************/ - -static void stack_ignore_variable_free(mc_stack_ignore_variable_t v){ - xbt_free(v->var_name); - xbt_free(v->frame); - xbt_free(v); -} - -static void stack_ignore_variable_free_voidp(void *v){ - stack_ignore_variable_free((mc_stack_ignore_variable_t) * (void **) v); -} - -void heap_ignore_region_free(mc_heap_ignore_region_t r){ - xbt_free(r); -} - -void heap_ignore_region_free_voidp(void *r){ - heap_ignore_region_free((mc_heap_ignore_region_t) * (void **) r); -} - -static void data_bss_ignore_variable_free(mc_data_bss_ignore_variable_t v){ - xbt_free(v->name); - xbt_free(v); -} - -static void data_bss_ignore_variable_free_voidp(void *v){ - data_bss_ignore_variable_free((mc_data_bss_ignore_variable_t) * (void **) v); -} - -static void checkpoint_ignore_region_free(mc_checkpoint_ignore_region_t r){ - xbt_free(r); -} - -static void checkpoint_ignore_region_free_voidp(void *r){ - checkpoint_ignore_region_free((mc_checkpoint_ignore_region_t) * (void **) r); -} - -/***********************************************************************/ - -void MC_ignore_heap(void *address, size_t size){ - - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); - - MC_SET_RAW_MEM; - - mc_heap_ignore_region_t region = NULL; - region = xbt_new0(s_mc_heap_ignore_region_t, 1); - region->address = address; - region->size = size; - - region->block = ((char*)address - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1; - - if(((xbt_mheap_t)std_heap)->heapinfo[region->block].type == 0){ - region->fragment = -1; - ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_block.ignore++; - }else{ - region->fragment = ((uintptr_t) (ADDR2UINT (address) % (BLOCKSIZE))) >> ((xbt_mheap_t)std_heap)->heapinfo[region->block].type; - ((xbt_mheap_t)std_heap)->heapinfo[region->block].busy_frag.ignore[region->fragment]++; - } - - if(mc_heap_comparison_ignore == NULL){ - mc_heap_comparison_ignore = xbt_dynar_new(sizeof(mc_heap_ignore_region_t), heap_ignore_region_free_voidp); - xbt_dynar_push(mc_heap_comparison_ignore, ®ion); - if(!raw_mem_set) - MC_UNSET_RAW_MEM; - return; - } - - unsigned int cursor = 0; - mc_heap_ignore_region_t current_region = NULL; - int start = 0; - int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1; - - while(start <= end){ - cursor = (start + end) / 2; - current_region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t); - if(current_region->address == address){ - heap_ignore_region_free(region); - if(!raw_mem_set) - MC_UNSET_RAW_MEM; - return; - }else if(current_region->address < address){ - start = cursor + 1; - }else{ - end = cursor - 1; - } - } - - if(current_region->address < address) - xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor + 1, ®ion); - else - xbt_dynar_insert_at(mc_heap_comparison_ignore, cursor, ®ion); - - if(!raw_mem_set) - MC_UNSET_RAW_MEM; -} - -void MC_remove_ignore_heap(void *address, size_t size){ - - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); - - MC_SET_RAW_MEM; - - unsigned int cursor = 0; - int start = 0; - int end = xbt_dynar_length(mc_heap_comparison_ignore) - 1; - mc_heap_ignore_region_t region; - int ignore_found = 0; - - while(start <= end){ - cursor = (start + end) / 2; - region = (mc_heap_ignore_region_t)xbt_dynar_get_as(mc_heap_comparison_ignore, cursor, mc_heap_ignore_region_t); - if(region->address == address){ - ignore_found = 1; - break; - }else if(region->address < address){ - start = cursor + 1; - }else{ - if((char * )region->address <= ((char *)address + size)){ - ignore_found = 1; - break; - }else{ - end = cursor - 1; - } - } - } - - if(ignore_found == 1){ - xbt_dynar_remove_at(mc_heap_comparison_ignore, cursor, NULL); - MC_remove_ignore_heap(address, size); - } - - if(!raw_mem_set) - MC_UNSET_RAW_MEM; - -} - -void MC_ignore_global_variable(const char *name){ - - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); - - MC_SET_RAW_MEM; - - if(mc_libsimgrid_info){ - - unsigned int cursor = 0; - dw_variable_t current_var; - int start = 0; - int end = xbt_dynar_length(mc_libsimgrid_info->global_variables) - 1; - - while(start <= end){ - cursor = (start + end) /2; - current_var = (dw_variable_t)xbt_dynar_get_as(mc_libsimgrid_info->global_variables, cursor, dw_variable_t); - if(strcmp(current_var->name, name) == 0){ - xbt_dynar_remove_at(mc_libsimgrid_info->global_variables, cursor, NULL); - start = 0; - end = xbt_dynar_length(mc_libsimgrid_info->global_variables) - 1; - }else if(strcmp(current_var->name, name) < 0){ - start = cursor + 1; - }else{ - end = cursor - 1; - } - } - - }else{ - - if(mc_data_bss_comparison_ignore == NULL) - mc_data_bss_comparison_ignore = xbt_dynar_new(sizeof(mc_data_bss_ignore_variable_t), data_bss_ignore_variable_free_voidp); - - mc_data_bss_ignore_variable_t var = NULL; - var = xbt_new0(s_mc_data_bss_ignore_variable_t, 1); - var->name = strdup(name); - - if(xbt_dynar_is_empty(mc_data_bss_comparison_ignore)){ - - xbt_dynar_insert_at(mc_data_bss_comparison_ignore, 0, &var); - - }else{ - - unsigned int cursor = 0; - int start = 0; - int end = xbt_dynar_length(mc_data_bss_comparison_ignore) - 1; - mc_data_bss_ignore_variable_t current_var = NULL; - - while(start <= end){ - cursor = (start + end) / 2; - current_var = (mc_data_bss_ignore_variable_t)xbt_dynar_get_as(mc_data_bss_comparison_ignore, cursor, mc_data_bss_ignore_variable_t); - if(strcmp(current_var->name, name) == 0){ - data_bss_ignore_variable_free(var); - if(!raw_mem_set) - MC_UNSET_RAW_MEM; - return; - }else if(strcmp(current_var->name, name) < 0){ - start = cursor + 1; - }else{ - end = cursor - 1; - } - } - - if(strcmp(current_var->name, name) < 0) - xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor + 1, &var); - else - xbt_dynar_insert_at(mc_data_bss_comparison_ignore, cursor, &var); - - } - } +static void MC_init_dot_output() +{ /* FIXME : more colors */ - if(!raw_mem_set) - MC_UNSET_RAW_MEM; -} + colors[0] = "blue"; + colors[1] = "red"; + colors[2] = "green3"; + colors[3] = "goldenrod"; + colors[4] = "brown"; + colors[5] = "purple"; + colors[6] = "magenta"; + colors[7] = "turquoise4"; + colors[8] = "gray25"; + colors[9] = "forestgreen"; + colors[10] = "hotpink"; + colors[11] = "lightblue"; + colors[12] = "tan"; -void MC_ignore_local_variable(const char *var_name, const char *frame_name){ - - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); - - MC_SET_RAW_MEM; - - if(mc_libsimgrid_info){ - unsigned int cursor = 0; - dw_variable_t current_var; - int start, end; - if(strcmp(frame_name, "*") == 0){ /* Remove variable in all frames */ - xbt_dict_cursor_t dict_cursor; - char *current_frame_name; - dw_frame_t frame; - xbt_dict_foreach(mc_libsimgrid_info->local_variables, dict_cursor, current_frame_name, frame){ - start = 0; - end = xbt_dynar_length(frame->variables) - 1; - while(start <= end){ - cursor = (start + end) / 2; - current_var = (dw_variable_t)xbt_dynar_get_as(frame->variables, cursor, dw_variable_t); - if(strcmp(current_var->name, var_name) == 0){ - xbt_dynar_remove_at(frame->variables, cursor, NULL); - start = 0; - end = xbt_dynar_length(frame->variables) - 1; - }else if(strcmp(current_var->name, var_name) < 0){ - start = cursor + 1; - }else{ - end = cursor - 1; - } - } - } - xbt_dict_foreach(mc_binary_info->local_variables, dict_cursor, current_frame_name, frame){ - start = 0; - end = xbt_dynar_length(frame->variables) - 1; - while(start <= end){ - cursor = (start + end) / 2; - current_var = (dw_variable_t)xbt_dynar_get_as(frame->variables, cursor, dw_variable_t); - if(strcmp(current_var->name, var_name) == 0){ - xbt_dynar_remove_at(frame->variables, cursor, NULL); - start = 0; - end = xbt_dynar_length(frame->variables) - 1; - }else if(strcmp(current_var->name, var_name) < 0){ - start = cursor + 1; - }else{ - end = cursor - 1; - } - } - } - }else{ - xbt_dynar_t variables_list = ((dw_frame_t)xbt_dict_get_or_null( - mc_libsimgrid_info->local_variables, frame_name))->variables; - start = 0; - end = xbt_dynar_length(variables_list) - 1; - while(start <= end){ - cursor = (start + end) / 2; - current_var = (dw_variable_t)xbt_dynar_get_as(variables_list, cursor, dw_variable_t); - if(strcmp(current_var->name, var_name) == 0){ - xbt_dynar_remove_at(variables_list, cursor, NULL); - start = 0; - end = xbt_dynar_length(variables_list) - 1; - }else if(strcmp(current_var->name, var_name) < 0){ - start = cursor + 1; - }else{ - end = cursor - 1; - } - } - } - }else{ - - if(mc_stack_comparison_ignore == NULL) - mc_stack_comparison_ignore = xbt_dynar_new(sizeof(mc_stack_ignore_variable_t), stack_ignore_variable_free_voidp); - - mc_stack_ignore_variable_t var = NULL; - var = xbt_new0(s_mc_stack_ignore_variable_t, 1); - var->var_name = strdup(var_name); - var->frame = strdup(frame_name); - - if(xbt_dynar_is_empty(mc_stack_comparison_ignore)){ - - xbt_dynar_insert_at(mc_stack_comparison_ignore, 0, &var); - - }else{ - - unsigned int cursor = 0; - int start = 0; - int end = xbt_dynar_length(mc_stack_comparison_ignore) - 1; - mc_stack_ignore_variable_t current_var = NULL; - - while(start <= end){ - cursor = (start + end) / 2; - current_var = (mc_stack_ignore_variable_t)xbt_dynar_get_as(mc_stack_comparison_ignore, cursor, mc_stack_ignore_variable_t); - if(strcmp(current_var->frame, frame_name) == 0){ - if(strcmp(current_var->var_name, var_name) == 0){ - stack_ignore_variable_free(var); - if(!raw_mem_set) - MC_UNSET_RAW_MEM; - return; - }else if(strcmp(current_var->var_name, var_name) < 0){ - start = cursor + 1; - }else{ - end = cursor - 1; - } - }else if(strcmp(current_var->frame, frame_name) < 0){ - start = cursor + 1; - }else{ - end = cursor - 1; - } - } + dot_output = fopen(_sg_mc_dot_output_file, "w"); - if(strcmp(current_var->frame, frame_name) == 0){ - if(strcmp(current_var->var_name, var_name) < 0){ - xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var); - }else{ - xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var); - } - }else if(strcmp(current_var->frame, frame_name) < 0){ - xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor + 1, &var); - }else{ - xbt_dynar_insert_at(mc_stack_comparison_ignore, cursor, &var); - } - } + if (dot_output == NULL) { + perror("Error open dot output file"); + xbt_abort(); } - if(!raw_mem_set) - MC_UNSET_RAW_MEM; + 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"); } -void MC_new_stack_area(void *stack, char *name, void* context, size_t size){ - - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); - - MC_SET_RAW_MEM; +static void MC_init_debug_info(void) +{ + XBT_INFO("Get debug information ..."); - if(stacks_areas == NULL) - stacks_areas = xbt_dynar_new(sizeof(stack_region_t), NULL); - - stack_region_t region = NULL; - region = xbt_new0(s_stack_region_t, 1); - region->address = stack; - region->process_name = strdup(name); - region->context = context; - region->size = size; - region->block = ((char*)stack - (char*)((xbt_mheap_t)std_heap)->heapbase) / BLOCKSIZE + 1; - xbt_dynar_push(stacks_areas, ®ion); + memory_map_t maps = MC_get_memory_map(); - if(!raw_mem_set) - MC_UNSET_RAW_MEM; -} + /* 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; -void MC_ignore(void *addr, size_t size){ - - int raw_mem_set= (mmalloc_get_current_heap() == raw_heap); - - MC_SET_RAW_MEM; - - if(mc_checkpoint_ignore == NULL) - mc_checkpoint_ignore = xbt_dynar_new(sizeof(mc_checkpoint_ignore_region_t), checkpoint_ignore_region_free_voidp); - - mc_checkpoint_ignore_region_t region = xbt_new0(s_mc_checkpoint_ignore_region_t, 1); - region->addr = addr; - region->size = size; - - if(xbt_dynar_is_empty(mc_checkpoint_ignore)){ - xbt_dynar_push(mc_checkpoint_ignore, ®ion); - }else{ - - unsigned int cursor = 0; - int start = 0; - int end = xbt_dynar_length(mc_checkpoint_ignore) -1; - mc_checkpoint_ignore_region_t current_region = NULL; - - while(start <= end){ - cursor = (start + end) / 2; - current_region = (mc_checkpoint_ignore_region_t)xbt_dynar_get_as(mc_checkpoint_ignore, cursor, mc_checkpoint_ignore_region_t); - if(current_region->addr == addr){ - if(current_region->size == size){ - checkpoint_ignore_region_free(region); - if(!raw_mem_set) - MC_UNSET_RAW_MEM; - return; - }else if(current_region->size < size){ - start = cursor + 1; - }else{ - end = cursor - 1; - } - }else if(current_region->addr < addr){ - start = cursor + 1; - }else{ - end = cursor - 1; - } - } + mc_libsimgrid_info = MC_find_object_info(maps, libsimgrid_path, 0); + mc_object_infos[1] = mc_libsimgrid_info; - if(current_region->addr == addr){ - if(current_region->size < size){ - xbt_dynar_insert_at(mc_checkpoint_ignore, cursor + 1, ®ion); - }else{ - xbt_dynar_insert_at(mc_checkpoint_ignore, cursor, ®ion); - } - }else if(current_region->addr < addr){ - xbt_dynar_insert_at(mc_checkpoint_ignore, cursor + 1, ®ion); - }else{ - xbt_dynar_insert_at(mc_checkpoint_ignore, cursor, ®ion); - } - } + // Use information of the other objects: + MC_post_process_object_info(mc_binary_info); + MC_post_process_object_info(mc_libsimgrid_info); - if(!raw_mem_set) - MC_UNSET_RAW_MEM; + MC_free_memory_map(maps); + XBT_INFO("Get debug information done !"); } -/******************************* Initialisation of MC *******************************/ -/*********************************************************************************/ - -static void MC_dump_ignored_local_variables(void){ - if(mc_stack_comparison_ignore == NULL || xbt_dynar_is_empty(mc_stack_comparison_ignore)) - return; - - unsigned int cursor = 0; - mc_stack_ignore_variable_t current_var; - - xbt_dynar_foreach(mc_stack_comparison_ignore, cursor, current_var){ - MC_ignore_local_variable(current_var->var_name, current_var->frame); - } - - xbt_dynar_free(&mc_stack_comparison_ignore); - mc_stack_comparison_ignore = NULL; - -} +void MC_init() +{ -static void MC_dump_ignored_global_variables(void){ + int raw_mem_set = (mmalloc_get_current_heap() == mc_heap); - if(mc_data_bss_comparison_ignore == NULL || xbt_dynar_is_empty(mc_data_bss_comparison_ignore)) - return; + mc_time = xbt_new0(double, simix_process_maxpid); - unsigned int cursor = 0; - mc_data_bss_ignore_variable_t current_var; + /* Initialize the data structures that must be persistent across every + iteration of the model-checker (in RAW memory) */ - xbt_dynar_foreach(mc_data_bss_comparison_ignore, cursor, current_var){ - MC_ignore_global_variable(current_var->name); - } + MC_SET_MC_HEAP; - xbt_dynar_free(&mc_data_bss_comparison_ignore); - mc_data_bss_comparison_ignore = NULL; + mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1); -} + /* Initialize statistics */ + mc_stats = xbt_new0(s_mc_stats_t, 1); + mc_stats->state_size = 1; -static void MC_init_debug_info(); -static void MC_init_debug_info() { - XBT_INFO("Get debug information ..."); + MC_init_memory_map_info(); + MC_init_debug_info(); /* FIXME : get debug information only if liveness verification or visited state reduction */ - memory_map_t maps = MC_get_memory_map(); + if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0')) + MC_init_dot_output(); - /* Get local variables for state equality detection */ - mc_binary_info = MC_find_object_info(maps, xbt_binary_name); - mc_libsimgrid_info = MC_find_object_info(maps, libsimgrid_path); + /* Init parmap */ + //parmap = xbt_parmap_mc_new(xbt_os_get_numcores(), XBT_PARMAP_DEFAULT); - MC_free_memory_map(maps); - XBT_INFO("Get debug information done !"); -} + MC_SET_STD_HEAP; -void MC_init(){ + if (_sg_mc_visited > 0 + || (_sg_mc_property_file && _sg_mc_property_file[0] != '\0')) { + /* 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("__ex_mctx_en", "*"); + MC_ignore_local_variable("__ex_mctx_me", "*"); + MC_ignore_local_variable("__xbt_ex_ctx_ptr", "*"); + MC_ignore_local_variable("_log_ev", "*"); + MC_ignore_local_variable("_throw_ctx", "*"); + MC_ignore_local_variable("ctx", "*"); - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + MC_ignore_local_variable("self", "simcall_BODY_mc_snapshot"); + MC_ignore_local_variable("next_context", "smx_ctx_sysv_suspend_serial"); + MC_ignore_local_variable("i", "smx_ctx_sysv_suspend_serial"); - compare = 0; + /* Ignore local variable about time used for tracing */ + MC_ignore_local_variable("start_time", "*"); - /* Initialize the data structures that must be persistent across every - iteration of the model-checker (in RAW memory) */ + MC_ignore_global_variable("compared_pointers"); + MC_ignore_global_variable("mc_comp_times"); + MC_ignore_global_variable("mc_snapshot_comparison_time"); + 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"); + MC_ignore_global_variable("smx_total_comms"); - MC_SET_RAW_MEM; + MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double)); - MC_init_memory_map_info(); - MC_init_debug_info(); - - /* Remove variables ignored before getting list of variables */ - MC_dump_ignored_local_variables(); - MC_dump_ignored_global_variables(); - - /* Init parmap */ - parmap = xbt_parmap_mc_new(xbt_os_get_numcores(), XBT_PARMAP_DEFAULT); - - MC_UNSET_RAW_MEM; - - /* 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("__ex_mctx_en", "*"); - MC_ignore_local_variable("__ex_mctx_me", "*"); - MC_ignore_local_variable("__xbt_ex_ctx_ptr", "*"); - MC_ignore_local_variable("_log_ev", "*"); - MC_ignore_local_variable("_throw_ctx", "*"); - MC_ignore_local_variable("ctx", "*"); - - MC_ignore_local_variable("next_context", "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("mc_comp_times"); - MC_ignore_global_variable("mc_snapshot_comparison_time"); - 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"); - - MC_ignore_heap(&(simix_global->process_to_run), sizeof(simix_global->process_to_run)); - MC_ignore_heap(&(simix_global->process_that_ran), sizeof(simix_global->process_that_ran)); - MC_ignore_heap(simix_global->process_to_run, sizeof(*(simix_global->process_to_run))); - MC_ignore_heap(simix_global->process_that_ran, sizeof(*(simix_global->process_that_ran))); - - 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_RAW_MEM; + if (raw_mem_set) + MC_SET_MC_HEAP; } -static void MC_init_dot_output(){ /* FIXME : more colors */ +/******************************* Core of MC *******************************/ +/**************************************************************************/ - colors[0] = "blue"; - colors[1] = "red"; - colors[2] = "green3"; - colors[3] = "goldenrod"; - colors[4] = "brown"; - colors[5] = "purple"; - colors[6] = "magenta"; - colors[7] = "turquoise4"; - colors[8] = "gray25"; - colors[9] = "forestgreen"; - colors[10] = "hotpink"; - colors[11] = "lightblue"; - colors[12] = "tan"; +static void MC_modelcheck_comm_determinism_init(void) +{ - dot_output = fopen(_sg_mc_dot_output_file, "w"); - - if(dot_output == NULL){ - perror("Error open dot output file"); - xbt_abort(); - } + int mc_mem_set = (mmalloc_get_current_heap() == mc_heap); - 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"); + MC_init(); -} + if (!mc_mem_set) + MC_SET_MC_HEAP; -/******************************* Core of MC *******************************/ -/**************************************************************************/ + /* Create exploration stack */ + mc_stack = xbt_fifo_new(); -void MC_do_the_modelcheck_for_real() { + MC_SET_STD_HEAP; - MC_SET_RAW_MEM; - mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1); - MC_UNSET_RAW_MEM; - - 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; + MC_pre_modelcheck_comm_determinism(); - XBT_INFO("Check a safety property"); - MC_modelcheck_safety(); + MC_SET_MC_HEAP; + 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->send_deterministic = 1; + MC_SET_STD_HEAP; - } else { + MC_modelcheck_comm_determinism(); - if (mc_reduce_kind==e_mc_reduce_unset) - mc_reduce_kind=e_mc_reduce_none; + if(mc_mem_set) + MC_SET_MC_HEAP; - XBT_INFO("Check the liveness property %s",_sg_mc_property_file); - MC_automaton_load(_sg_mc_property_file); - MC_modelcheck_liveness(); - } } -void MC_modelcheck_safety(void) +static void MC_modelcheck_safety_init(void) { - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); - - /* Check if MC is already initialized */ - if (initial_state_safety) - return; + int mc_mem_set = (mmalloc_get_current_heap() == mc_heap); - mc_time = xbt_new0(double, simix_process_maxpid); - - /* mc_time refers to clock for each process -> ignore it for heap comparison */ - MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double)); + _sg_mc_safety = 1; - /* Initialize the data structures that must be persistent across every - iteration of the model-checker (in RAW memory) */ - - MC_SET_RAW_MEM; + MC_init(); - /* Initialize statistics */ - mc_stats = xbt_new0(s_mc_stats_t, 1); - mc_stats->state_size = 1; + if (!mc_mem_set) + MC_SET_MC_HEAP; /* Create exploration stack */ - mc_stack_safety = xbt_fifo_new(); + mc_stack = xbt_fifo_new(); - if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')) - MC_init_dot_output(); - - MC_UNSET_RAW_MEM; + MC_SET_STD_HEAP; - if(_sg_mc_visited > 0){ - MC_init(); - }else{ - MC_SET_RAW_MEM; - MC_init_memory_map_info(); - MC_init_debug_info(); - MC_UNSET_RAW_MEM; - } + MC_pre_modelcheck_safety(); - MC_dpor_init(); - - MC_SET_RAW_MEM; + MC_SET_MC_HEAP; /* Save the initial state */ - initial_state_safety = xbt_new0(s_mc_global_t, 1); - initial_state_safety->snapshot = MC_take_snapshot(0); - MC_UNSET_RAW_MEM; + initial_global_state = xbt_new0(s_mc_global_t, 1); + initial_global_state->snapshot = MC_take_snapshot(0); + MC_SET_STD_HEAP; - MC_dpor(); + MC_modelcheck_safety(); - if(raw_mem_set) - MC_SET_RAW_MEM; + if (mc_mem_set) + MC_SET_MC_HEAP; xbt_abort(); //MC_exit(); } -void MC_modelcheck_liveness(){ +static void MC_modelcheck_liveness_init() +{ - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + int mc_mem_set = (mmalloc_get_current_heap() == mc_heap); - MC_init(); + _sg_mc_liveness = 1; - mc_time = xbt_new0(double, simix_process_maxpid); + MC_init(); - /* mc_time refers to clock for each process -> ignore it for heap comparison */ - MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double)); - - MC_SET_RAW_MEM; - - /* Initialize statistics */ - mc_stats = xbt_new0(s_mc_stats_t, 1); - mc_stats->state_size = 1; + if (!mc_mem_set) + MC_SET_MC_HEAP; /* Create exploration stack */ - mc_stack_liveness = xbt_fifo_new(); + mc_stack = xbt_fifo_new(); /* Create the initial state */ - initial_state_liveness = xbt_new0(s_mc_global_t, 1); + initial_global_state = xbt_new0(s_mc_global_t, 1); - if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')) - MC_init_dot_output(); - - MC_UNSET_RAW_MEM; + MC_SET_STD_HEAP; - MC_ddfs_init(); + MC_pre_modelcheck_liveness(); /* We're done */ MC_print_statistics(mc_stats); xbt_free(mc_time); - if(raw_mem_set) - MC_SET_RAW_MEM; + if (mc_mem_set) + MC_SET_MC_HEAP; } +void MC_do_the_modelcheck_for_real() +{ + + if (_sg_mc_comms_determinism || _sg_mc_send_determinism) { + XBT_INFO("Check communication determinism"); + 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"); + MC_modelcheck_safety_init(); + } else { + if (mc_reduce_kind == e_mc_reduce_unset) + mc_reduce_kind = e_mc_reduce_none; + XBT_INFO("Check the liveness property %s", _sg_mc_property_file); + MC_automaton_load(_sg_mc_property_file); + MC_modelcheck_liveness_init(); + } +} + void MC_exit(void) { @@ -1165,7 +420,8 @@ void MC_exit(void) //xbt_abort(); } -int SIMIX_pre_mc_random(smx_simcall_t simcall, int min, int max){ +int SIMIX_pre_mc_random(smx_simcall_t simcall, int min, int max) +{ return simcall->mc_value; } @@ -1173,7 +429,7 @@ int SIMIX_pre_mc_random(smx_simcall_t simcall, int min, int max){ int MC_random(int min, int max) { - /*FIXME: return mc_current_state->executed_transition->random.value;*/ + /*FIXME: return mc_current_state->executed_transition->random.value; */ return simcall_mc_random(min, max); } @@ -1200,11 +456,11 @@ int MC_deadlock_check() { int deadlock = FALSE; smx_process_t process; - if(xbt_swag_size(simix_global->process_list)){ + 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)){ + xbt_swag_foreach(process, simix_global->process_list) { + if (process->simcall.call != SIMCALL_NONE + && MC_request_is_enabled(&process->simcall)) { deadlock = FALSE; break; } @@ -1221,7 +477,7 @@ int MC_deadlock_check() */ void MC_replay(xbt_fifo_t stack, int start) { - int raw_mem = (mmalloc_get_current_heap() == raw_heap); + int raw_mem = (mmalloc_get_current_heap() == mc_heap); int value, i = 1, count = 1; char *req_str; @@ -1229,37 +485,48 @@ void MC_replay(xbt_fifo_t stack, int start) 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){ + if (start == -1) { /* Restore the initial state */ - MC_restore_snapshot(initial_state_safety->snapshot); + 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_UNSET_RAW_MEM; + MC_SET_STD_HEAP; } start_item = xbt_fifo_get_last_item(stack); - if(start != -1){ - while (i != start){ + if (start != -1) { + while (i != start) { start_item = xbt_fifo_get_prev_item(start_item); i++; } } - MC_SET_RAW_MEM; - 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); + MC_SET_MC_HEAP; + + if (mc_reduce_kind == e_mc_reduce_dpor) { + 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); + } } } - MC_UNSET_RAW_MEM; - + + if (_sg_mc_comms_determinism || _sg_mc_send_determinism) { + xbt_dynar_reset(communications_pattern); + xbt_dynar_reset(incomplete_communications_pattern); + } + + MC_SET_STD_HEAP; + /* Traverse the stack from the state at position start and re-execute the transitions */ for (item = start_item; @@ -1268,45 +535,85 @@ void MC_replay(xbt_fifo_t stack, int start) state = (mc_state_t) xbt_fifo_get_item_content(item); saved_req = MC_state_get_executed_request(state, &value); - - MC_SET_RAW_MEM; - char *key = bprintf("%lu", saved_req->issuer->pid); - xbt_dict_remove(first_enabled_state, key); - xbt_free(key); - MC_UNSET_RAW_MEM; - - if(saved_req){ + + if (mc_reduce_kind == e_mc_reduce_dpor) { + 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; /* Debug information */ - if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){ + if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) { req_str = MC_request_to_string(req, value); XBT_DEBUG("Replay: %s (%p)", req_str, state); xbt_free(req_str); } - } - - SIMIX_simcall_pre(req, value); - MC_wait_for_requests(); - count++; + /* 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; + } - MC_SET_RAW_MEM; - /* Insert in dict all enabled processes */ - xbt_swag_foreach(process, simix_global->process_list){ - if(MC_process_is_enabled(process) /*&& !MC_state_process_is_done(state, 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); + 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); + } } - xbt_free(key); + MC_SET_STD_HEAP; + comm_pattern = 0; + } + + + MC_wait_for_requests(); + + count++; + + if (mc_reduce_kind == e_mc_reduce_dpor) { + MC_SET_MC_HEAP; + /* Insert in dict all enabled processes */ + xbt_swag_foreach(process, simix_global->process_list) { + if (MC_process_is_enabled(process) + /*&& !MC_state_process_is_done(state, 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; } } - MC_UNSET_RAW_MEM; - + /* Update statistics */ mc_stats->visited_states++; mc_stats->executed_transitions++; @@ -1315,18 +622,18 @@ void MC_replay(xbt_fifo_t stack, int start) XBT_DEBUG("**** End Replay ****"); - if(raw_mem) - MC_SET_RAW_MEM; + if (raw_mem) + MC_SET_MC_HEAP; else - MC_UNSET_RAW_MEM; - + MC_SET_STD_HEAP; + } void MC_replay_liveness(xbt_fifo_t stack, int all_stack) { - initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + initial_global_state->raw_mem_set = (mmalloc_get_current_heap() == mc_heap); int value; char *req_str; @@ -1339,48 +646,48 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) XBT_DEBUG("**** Begin Replay ****"); /* Restore the initial state */ - MC_restore_snapshot(initial_state_liveness->snapshot); + 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 */ - if(!initial_state_liveness->raw_mem_set) - MC_UNSET_RAW_MEM; + if (!initial_global_state->raw_mem_set) + MC_SET_STD_HEAP; - if(all_stack){ + if (all_stack) { item = xbt_fifo_get_last_item(stack); - while(depth <= xbt_fifo_size(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){ - + 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){ + + 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)){ + 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++; @@ -1388,7 +695,7 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) item = xbt_fifo_get_prev_item(item); } - }else{ + } else { /* Traverse the stack from the initial state and re-execute the transitions */ for (item = xbt_fifo_get_last_item(stack); @@ -1398,45 +705,45 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) pair = (mc_pair_t) xbt_fifo_get_item_content(item); state = (mc_state_t) pair->graph_state; - if(pair->requests > 0){ - + 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){ + + 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)){ + 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++; } - } + } XBT_DEBUG("**** End Replay ****"); - if(initial_state_liveness->raw_mem_set) - MC_SET_RAW_MEM; + if (initial_global_state->raw_mem_set) + MC_SET_MC_HEAP; else - MC_UNSET_RAW_MEM; - + MC_SET_STD_HEAP; + } /** @@ -1446,146 +753,157 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) */ void MC_dump_stack_safety(xbt_fifo_t stack) { - - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + + int raw_mem_set = (mmalloc_get_current_heap() == mc_heap); MC_show_stack_safety(stack); - if(!_sg_mc_checkpoint){ + if (!_sg_mc_checkpoint) { mc_state_t state; - MC_SET_RAW_MEM; + MC_SET_MC_HEAP; while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL) MC_state_delete(state); - MC_UNSET_RAW_MEM; + MC_SET_STD_HEAP; } - if(raw_mem_set) - MC_SET_RAW_MEM; + if (raw_mem_set) + MC_SET_MC_HEAP; else - MC_UNSET_RAW_MEM; - + MC_SET_STD_HEAP; + } void MC_show_stack_safety(xbt_fifo_t stack) { - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + int raw_mem_set = (mmalloc_get_current_heap() == mc_heap); - MC_SET_RAW_MEM; + MC_SET_MC_HEAP; int value; mc_state_t state; xbt_fifo_item_t item; smx_simcall_t req; char *req_str = NULL; - + for (item = xbt_fifo_get_last_item(stack); (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item))) : (NULL)); item = xbt_fifo_get_prev_item(item)) { req = MC_state_get_executed_request(state, &value); - if(req){ + if (req) { req_str = MC_request_to_string(req, value); XBT_INFO("%s", req_str); xbt_free(req_str); } } - if(!raw_mem_set) - MC_UNSET_RAW_MEM; + if (!raw_mem_set) + MC_SET_STD_HEAP; } void MC_show_deadlock(smx_simcall_t req) { - /*char *req_str = NULL;*/ + /*char *req_str = NULL; */ XBT_INFO("**************************"); XBT_INFO("*** DEAD-LOCK DETECTED ***"); XBT_INFO("**************************"); XBT_INFO("Locked request:"); /*req_str = MC_request_to_string(req); - XBT_INFO("%s", req_str); - xbt_free(req_str);*/ + XBT_INFO("%s", req_str); + xbt_free(req_str); */ XBT_INFO("Counter-example execution trace:"); - MC_dump_stack_safety(mc_stack_safety); + MC_dump_stack_safety(mc_stack); MC_print_statistics(mc_stats); } -void MC_show_stack_liveness(xbt_fifo_t stack){ +void MC_show_stack_liveness(xbt_fifo_t stack) +{ int value; mc_pair_t pair; xbt_fifo_item_t item; smx_simcall_t req; char *req_str = NULL; - + for (item = xbt_fifo_get_last_item(stack); (item ? (pair = (mc_pair_t) (xbt_fifo_get_item_content(item))) : (NULL)); item = xbt_fifo_get_prev_item(item)) { req = MC_state_get_executed_request(pair->graph_state, &value); - if(req){ - if(pair->requests>0){ + if (req) { + if (pair->requests > 0) { req_str = MC_request_to_string(req, value); XBT_INFO("%s", req_str); xbt_free(req_str); - }else{ + } else { XBT_INFO("End of system requests but evolution in Büchi automaton"); } } } } -void MC_dump_stack_liveness(xbt_fifo_t stack){ +void MC_dump_stack_liveness(xbt_fifo_t stack) +{ - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + int raw_mem_set = (mmalloc_get_current_heap() == mc_heap); mc_pair_t pair; - MC_SET_RAW_MEM; + MC_SET_MC_HEAP; while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL) MC_pair_delete(pair); - MC_UNSET_RAW_MEM; + MC_SET_STD_HEAP; - if(raw_mem_set) - MC_SET_RAW_MEM; + if (raw_mem_set) + MC_SET_MC_HEAP; } void MC_print_statistics(mc_stats_t stats) { - if(stats->expanded_pairs == 0){ + if (stats->expanded_pairs == 0) { XBT_INFO("Expanded states = %lu", stats->expanded_states); XBT_INFO("Visited states = %lu", stats->visited_states); - }else{ + } else { XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs); XBT_INFO("Visited pairs = %lu", stats->visited_pairs); } XBT_INFO("Executed transitions = %lu", stats->executed_transitions); - MC_SET_RAW_MEM; - if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){ + MC_SET_MC_HEAP; + if ((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0] != '\0')) { fprintf(dot_output, "}\n"); fclose(dot_output); } - MC_UNSET_RAW_MEM; + if (initial_global_state != NULL) { + 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"); + } + MC_SET_STD_HEAP; } void MC_assert(int prop) { - if (MC_is_active() && !prop){ + 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_safety); + MC_dump_stack_safety(mc_stack); MC_print_statistics(mc_stats); xbt_abort(); } } -void MC_cut(void){ +void MC_cut(void) +{ user_max_depth_reached = 1; } @@ -1596,51 +914,50 @@ void MC_process_clock_add(smx_process_t process, double amount) double MC_process_clock_get(smx_process_t process) { - if(mc_time){ - if(process != NULL) + if (mc_time) { + if (process != NULL) return mc_time[process->pid]; - else + else return -1; - }else{ + } else { return 0; } } -void MC_automaton_load(const char *file){ +void MC_automaton_load(const char *file) +{ - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + int raw_mem_set = (mmalloc_get_current_heap() == mc_heap); - MC_SET_RAW_MEM; + MC_SET_MC_HEAP; if (_mc_property_automaton == NULL) _mc_property_automaton = xbt_automaton_new(); - - xbt_automaton_load(_mc_property_automaton,file); - MC_UNSET_RAW_MEM; + xbt_automaton_load(_mc_property_automaton, file); + + MC_SET_STD_HEAP; - if(raw_mem_set) - MC_SET_RAW_MEM; + if (raw_mem_set) + MC_SET_MC_HEAP; } -void MC_automaton_new_propositional_symbol(const char* id, void* fct) { +void MC_automaton_new_propositional_symbol(const char *id, void *fct) +{ - int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + int raw_mem_set = (mmalloc_get_current_heap() == mc_heap); - MC_SET_RAW_MEM; + 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_UNSET_RAW_MEM; - - if(raw_mem_set) - MC_SET_RAW_MEM; - -} + xbt_automaton_propositional_symbol_new(_mc_property_automaton, id, fct); + MC_SET_STD_HEAP; + if (raw_mem_set) + MC_SET_MC_HEAP; +}