X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/1fe9c42d64bd7524b7d24df2b1fcc6e6e37d6a6b..8fc11b8e2c3f486babc8be5494ddd53ffcc659f4:/src/mc/mc_global.c diff --git a/src/mc/mc_global.c b/src/mc/mc_global.c index abc9a87da7..668bea076b 100644 --- a/src/mc/mc_global.c +++ b/src/mc/mc_global.c @@ -1,82 +1,1064 @@ +/* Copyright (c) 2008-2013. The SimGrid Team. + * All rights reserved. */ + +/* This program is free software; you can redistribute it and/or modify it + * under the terms of the license (GNU LGPL) which comes with this package. */ + #include #include #include #include +#include +#include "simgrid/sg_config.h" #include "../surf/surf_private.h" -#include "../simix/private.h" +#include "../simix/smx_private.h" +#include "../xbt/mmalloc/mmprivate.h" #include "xbt/fifo.h" -#include "private.h" - +#include "mc_private.h" +#include "xbt/automaton.h" +#include "xbt/dict.h" +XBT_LOG_NEW_CATEGORY(mc, "All MC categories"); XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc, "Logging specific to MC (global)"); -/* MC global data structures */ +/* Configuration support */ +e_mc_reduce_t mc_reduce_kind=e_mc_reduce_unset; + +int _sg_do_model_check = 0; +int _sg_mc_checkpoint=0; +char* _sg_mc_property_file=NULL; +int _sg_mc_timeout=0; +int _sg_mc_max_depth=1000; +int _sg_mc_visited=0; +char *_sg_mc_dot_output_file = NULL; +int _sg_mc_comms_determinism=0; + +int user_max_depth_reached = 0; + +void _mc_cfg_cb_reduce(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a reduction strategy after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); + } + char *val= xbt_cfg_get_string(_sg_cfg_set, name); + if (!strcasecmp(val,"none")) { + mc_reduce_kind = e_mc_reduce_none; + } else if (!strcasecmp(val,"dpor")) { + mc_reduce_kind = e_mc_reduce_dpor; + } else { + xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",name); + } +} +void _mc_cfg_cb_checkpoint(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a checkpointing value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); + } + _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name); +} +void _mc_cfg_cb_property(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a property after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); + } + _sg_mc_property_file= xbt_cfg_get_string(_sg_cfg_set, name); +} + +void _mc_cfg_cb_timeout(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a value to enable/disable timeout for wait requests after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); + } + _sg_mc_timeout= xbt_cfg_get_boolean(_sg_cfg_set, name); +} + +void _mc_cfg_cb_max_depth(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a max depth value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); + } + _sg_mc_max_depth= xbt_cfg_get_int(_sg_cfg_set, name); +} + +void _mc_cfg_cb_visited(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a number of stored visited states after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); + } + _sg_mc_visited= xbt_cfg_get_int(_sg_cfg_set, name); +} + +void _mc_cfg_cb_dot_output(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a file name for a dot output of graph state after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); + } + _sg_mc_dot_output_file= xbt_cfg_get_string(_sg_cfg_set, name); +} + +void _mc_cfg_cb_comms_determinism(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a value to enable/disable the detection of determinism in the communications schemes after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); + } + _sg_mc_comms_determinism= xbt_cfg_get_boolean(_sg_cfg_set, name); +} + +/* MC global data structures */ mc_state_t mc_current_state = NULL; char mc_replay_mode = FALSE; double *mc_time = NULL; -mc_snapshot_t initial_snapshot = 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_stateful = NULL; -xbt_fifo_t mc_stack_safety_stateless = NULL; -mc_stats_t mc_stats = NULL; +xbt_fifo_t mc_stack_safety = NULL; +mc_global_t initial_state_safety = NULL; /* Liveness */ +xbt_fifo_t mc_stack_liveness = NULL; +mc_global_t initial_state_liveness = NULL; +int compare; -xbt_fifo_t mc_stack_liveness_stateful = NULL; -mc_stats_pair_t mc_stats_pair = NULL; -xbt_fifo_t mc_stack_liveness_stateless = NULL; +xbt_automaton_t _mc_property_automaton = NULL; +/* Variables */ +mc_object_info_t mc_libsimgrid_info = NULL; +mc_object_info_t mc_binary_info = NULL; -/** - * \brief Initialize the model-checker data structures +/* 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; + +/* 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->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_new0(s_mc_object_info_t, 1); + 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. */ -void MC_init_safety_stateless(void) -{ +static dw_frame_t MC_dwarf_get_frame_by_offset(xbt_dict_t all_variables, unsigned long int offset){ - /* Check if MC is already initialized */ - if (initial_snapshot) + 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) + return -1; + if(var_test->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) + 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); + if (index != -1) + xbt_dynar_insert_at(info->global_variables, index, &variable); + // TODO, else ? +} + +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); +} + +/******************************* Ignore mechanism *******************************/ +/*********************************************************************************/ + +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; + } - mc_time = xbt_new0(double, simix_process_maxpid); + 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); + + } + } + + if(!raw_mem_set) + MC_UNSET_RAW_MEM; +} + +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; + } + } + + 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(!raw_mem_set) + MC_UNSET_RAW_MEM; + +} + +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; + + 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); + + if(!raw_mem_set) + MC_UNSET_RAW_MEM; +} + +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; + } + } + + 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); + } + } + + if(!raw_mem_set) + MC_UNSET_RAW_MEM; +} + +/******************************* 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; + +} + +static void MC_dump_ignored_global_variables(void){ + + if(mc_data_bss_comparison_ignore == NULL || xbt_dynar_is_empty(mc_data_bss_comparison_ignore)) + return; + + unsigned int cursor = 0; + mc_data_bss_ignore_variable_t current_var; + + xbt_dynar_foreach(mc_data_bss_comparison_ignore, cursor, current_var){ + MC_ignore_global_variable(current_var->name); + } + + xbt_dynar_free(&mc_data_bss_comparison_ignore); + mc_data_bss_comparison_ignore = NULL; + +} + +static void MC_init_debug_info(); +static void MC_init_debug_info() { + XBT_INFO("Get debug information ..."); + + memory_map_t maps = MC_get_memory_map(); + + /* Get local variables for state equality detection */ + mc_binary_info = MC_find_object_info(maps, xbt_binary_name); + mc_libsimgrid_info = MC_find_object_info(maps, libsimgrid_path); + + MC_free_memory_map(maps); + XBT_INFO("Get debug information done !"); +} + +void MC_init(){ + + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + + compare = 0; /* Initialize the data structures that must be persistent across every iteration of the model-checker (in RAW memory) */ + MC_SET_RAW_MEM; - /* Initialize statistics */ - mc_stats = xbt_new0(s_mc_stats_t, 1); - mc_stats->state_size = 1; + MC_init_memory_map_info(); + MC_init_debug_info(); - /* Create exploration stack */ - mc_stack_safety_stateless = xbt_fifo_new(); + /* 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; - MC_dpor_init(); + /* 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)); + } + + if(raw_mem_set) + MC_SET_RAW_MEM; + +} + +static void MC_init_dot_output(){ /* FIXME : more colors */ + + 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"; + + dot_output = fopen(_sg_mc_dot_output_file, "w"); + + if(dot_output == NULL){ + perror("Error open dot output file"); + xbt_abort(); + } + + 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"); + +} + +/******************************* Core of MC *******************************/ +/**************************************************************************/ + +void MC_do_the_modelcheck_for_real() { MC_SET_RAW_MEM; - /* Save the initial state */ - initial_snapshot = xbt_new0(s_mc_snapshot_t, 1); - MC_take_snapshot(initial_snapshot); + 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; + + XBT_INFO("Check a safety property"); + MC_modelcheck_safety(); + + } 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(); + } } -void MC_init_safety_stateful(void){ +void MC_modelcheck_safety(void) +{ + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); - - /* Check if MC is already initialized */ - if (initial_snapshot) + /* Check if MC is already initialized */ + if (initial_state_safety) return; 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)); + /* Initialize the data structures that must be persistent across every iteration of the model-checker (in RAW memory) */ + MC_SET_RAW_MEM; /* Initialize statistics */ @@ -84,114 +1066,100 @@ void MC_init_safety_stateful(void){ mc_stats->state_size = 1; /* Create exploration stack */ - mc_stack_safety_stateful = xbt_fifo_new(); - - MC_UNSET_RAW_MEM; - - MC_dpor_stateful_init(); - + mc_stack_safety = xbt_fifo_new(); -} + if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')) + MC_init_dot_output(); -void MC_init_liveness_stateful(xbt_automaton_t a){ + MC_UNSET_RAW_MEM; - XBT_DEBUG("Start init mc"); - - mc_time = xbt_new0(double, simix_process_maxpid); + 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; + } - /* Initialize the data structures that must be persistent across every - iteration of the model-checker (in RAW memory) */ + MC_dpor_init(); MC_SET_RAW_MEM; + /* Save the initial state */ + initial_state_safety = xbt_new0(s_mc_global_t, 1); + initial_state_safety->snapshot = MC_take_snapshot(0); + initial_state_safety->initial_communications_pattern_done = 0; + initial_state_safety->comm_deterministic = 1; + initial_state_safety->send_deterministic = 1; + MC_UNSET_RAW_MEM; - /* Initialize statistics */ - mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1); - //mc_stats = xbt_new0(s_mc_stats_t, 1); - - XBT_DEBUG("Creating snapshot_stack"); + MC_dpor(); - /* Create exploration stack */ - mc_stack_liveness_stateful = xbt_fifo_new(); + if(raw_mem_set) + MC_SET_RAW_MEM; + xbt_abort(); + //MC_exit(); +} - MC_UNSET_RAW_MEM; +void MC_modelcheck_liveness(){ - MC_ddfs_stateful_init(a); - //MC_dpor2_init(a); - //MC_dpor3_init(a); -} + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); -void MC_init_liveness_stateless(xbt_automaton_t a){ + MC_init(); - XBT_DEBUG("Start init mc"); - mc_time = xbt_new0(double, simix_process_maxpid); - /* Initialize the data structures that must be persistent across every - iteration of the model-checker (in RAW memory) */ - + /* mc_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_pair = xbt_new0(s_mc_stats_pair_t, 1); - - XBT_DEBUG("Creating stack"); - - /* Create exploration stack */ - mc_stack_liveness_stateless = xbt_fifo_new(); + mc_stats = xbt_new0(s_mc_stats_t, 1); + mc_stats->state_size = 1; - MC_UNSET_RAW_MEM; + /* Create exploration stack */ + mc_stack_liveness = xbt_fifo_new(); - MC_ddfs_stateless_init(a); + /* Create the initial state */ + initial_state_liveness = 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_ddfs_init(); -void MC_modelcheck(void) -{ - MC_init_safety_stateless(); - MC_dpor(); - MC_exit(); -} + /* We're done */ + MC_print_statistics(mc_stats); + xbt_free(mc_time); -void MC_modelcheck_stateful(void) -{ - MC_init_safety_stateful(); - MC_dpor_stateful(); - MC_exit(); -} + if(raw_mem_set) + MC_SET_RAW_MEM; -void MC_modelcheck_liveness_stateful(xbt_automaton_t a){ - MC_init_liveness_stateful(a); - MC_exit_liveness(); } -void MC_modelcheck_liveness_stateless(xbt_automaton_t a){ - MC_init_liveness_stateless(a); - MC_exit_liveness(); -} -void MC_exit_liveness(void) +void MC_exit(void) { - MC_print_statistics_pairs(mc_stats_pair); - //xbt_free(mc_time); + xbt_free(mc_time); + MC_memory_exit(); + //xbt_abort(); } +int SIMIX_pre_mc_random(smx_simcall_t simcall, int min, int max){ -void MC_exit(void) -{ - MC_print_statistics(mc_stats); - xbt_free(mc_time); - MC_memory_exit(); + return simcall->mc_value; } int MC_random(int min, int max) { /*FIXME: return mc_current_state->executed_transition->random.value;*/ - return 0; + return simcall_mc_random(min, max); } /** @@ -200,15 +1168,15 @@ int MC_random(int min, int max) void MC_wait_for_requests(void) { smx_process_t process; - smx_req_t req; + smx_simcall_t req; unsigned int iter; - while (xbt_dynar_length(simix_global->process_to_run)) { + while (!xbt_dynar_is_empty(simix_global->process_to_run)) { SIMIX_process_runall(); xbt_dynar_foreach(simix_global->process_that_ran, iter, process) { - req = &process->request; - if (req->call != REQ_NO_REQ && !MC_request_is_visible(req)) - SIMIX_request_pre(req, 0); + req = &process->simcall; + if (req->call != SIMCALL_NONE && !MC_request_is_visible(req)) + SIMIX_simcall_pre(req, 0); } } } @@ -220,8 +1188,8 @@ int MC_deadlock_check() if(xbt_swag_size(simix_global->process_list)){ deadlock = TRUE; xbt_swag_foreach(process, simix_global->process_list){ - if(process->request.call != REQ_NO_REQ - && MC_request_is_enabled(&process->request)){ + if(process->simcall.call != SIMCALL_NONE + && MC_request_is_enabled(&process->simcall)){ deadlock = FALSE; break; } @@ -231,38 +1199,74 @@ int MC_deadlock_check() } /** - * \brief Re-executes from the initial state all the transitions indicated by + * \brief Re-executes from the state at position start all the transitions indicated by * a given model-checker stack. * \param stack The stack with the transitions to execute. -*/ -void MC_replay(xbt_fifo_t stack) + * \param start Start index to begin the re-execution. + */ +void MC_replay(xbt_fifo_t stack, int start) { - int value; + int raw_mem = (mmalloc_get_current_heap() == raw_heap); + + int value, i = 1, count = 1; char *req_str; - smx_req_t req = NULL, saved_req = NULL; - xbt_fifo_item_t item; + smx_simcall_t req = NULL, saved_req = NULL; + xbt_fifo_item_t item, start_item; mc_state_t state; + smx_process_t process = NULL; + int comm_pattern = 0; XBT_DEBUG("**** Begin Replay ****"); - /* Restore the initial state */ - MC_restore_snapshot(initial_snapshot); - /* At the moment of taking the snapshot the raw heap was set, so restoring - * it will set it back again, we have to unset it to continue */ + if(start == -1){ + /* Restore the initial state */ + MC_restore_snapshot(initial_state_safety->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; + } + + start_item = xbt_fifo_get_last_item(stack); + 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); + } + } + if(_sg_mc_comms_determinism) + xbt_dynar_reset(communications_pattern); MC_UNSET_RAW_MEM; + - /* Traverse the stack from the initial state and re-execute the transitions */ - for (item = xbt_fifo_get_last_item(stack); + /* Traverse the stack from the state at position start and re-execute the transitions */ + for (item = start_item; item != xbt_fifo_get_first_item(stack); item = xbt_fifo_get_prev_item(item)) { 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){ /* because we got a copy of the executed request, we have to fetch the real one, pointed by the request field of the issuer process */ - req = &saved_req->issuer->request; + req = &saved_req->issuer->simcall; /* Debug information */ if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){ @@ -271,101 +1275,217 @@ void MC_replay(xbt_fifo_t stack) xbt_free(req_str); } } - - SIMIX_request_pre(req, value); + + if(_sg_mc_comms_determinism){ + if(req->call == SIMCALL_COMM_ISEND) + comm_pattern = 1; + else if(req->call == SIMCALL_COMM_IRECV) + comm_pattern = 2; + } + + SIMIX_simcall_pre(req, value); + + if(_sg_mc_comms_determinism){ + MC_SET_RAW_MEM; + if(comm_pattern != 0){ + get_comm_pattern(communications_pattern, req, comm_pattern); + } + MC_UNSET_RAW_MEM; + comm_pattern = 0; + } + MC_wait_for_requests(); + + count++; + + 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); + } + xbt_free(key); + } + } + MC_UNSET_RAW_MEM; /* Update statistics */ mc_stats->visited_states++; mc_stats->executed_transitions++; + } + XBT_DEBUG("**** End Replay ****"); + + if(raw_mem) + MC_SET_RAW_MEM; + else + MC_UNSET_RAW_MEM; + + } -void MC_replay_liveness(xbt_fifo_t stack) +void MC_replay_liveness(xbt_fifo_t stack, int all_stack) { + + initial_state_liveness->raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + int value; char *req_str; - smx_req_t req = NULL, saved_req = NULL; + smx_simcall_t req = NULL, saved_req = NULL; xbt_fifo_item_t item; mc_state_t state; - mc_pair_stateless_t pair; + mc_pair_t pair; int depth = 1; XBT_DEBUG("**** Begin Replay ****"); /* Restore the initial state */ - MC_restore_snapshot(initial_snapshot); + MC_restore_snapshot(initial_state_liveness->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; + if(!initial_state_liveness->raw_mem_set) + MC_UNSET_RAW_MEM; - /* Traverse the stack from the initial state and re-execute the transitions */ - for (item = xbt_fifo_get_last_item(stack); - item != xbt_fifo_get_first_item(stack); - item = xbt_fifo_get_prev_item(item)) { + if(all_stack){ - pair = (mc_pair_stateless_t) xbt_fifo_get_item_content(item); - state = (mc_state_t) pair->graph_state; + item = xbt_fifo_get_last_item(stack); - if(pair->requests > 0){ + while(depth <= xbt_fifo_size(stack)){ + + pair = (mc_pair_t) xbt_fifo_get_item_content(item); + state = (mc_state_t) pair->graph_state; + + if(pair->requests > 0){ - saved_req = MC_state_get_executed_request(state, &value); - //XBT_DEBUG("SavedReq->call %u", saved_req->call); + saved_req = MC_state_get_executed_request(state, &value); + //XBT_DEBUG("SavedReq->call %u", saved_req->call); - if(saved_req != NULL){ - /* because we got a copy of the executed request, we have to fetch the - real one, pointed by the request field of the issuer process */ - req = &saved_req->issuer->request; - //XBT_DEBUG("Req->call %u", req->call); - - /* Debug information */ - if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){ - req_str = MC_request_to_string(req, value); - XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state); - xbt_free(req_str); - } - - } + if(saved_req != NULL){ + /* because we got a copy of the executed request, we have to fetch the + real one, pointed by the request field of the issuer process */ + req = &saved_req->issuer->simcall; + //XBT_DEBUG("Req->call %u", req->call); + + /* Debug information */ + if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){ + req_str = MC_request_to_string(req, value); + XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state); + xbt_free(req_str); + } + + } - SIMIX_request_pre(req, value); - MC_wait_for_requests(); + SIMIX_simcall_pre(req, value); + MC_wait_for_requests(); + } + + depth++; + + /* Update statistics */ + mc_stats->visited_pairs++; + mc_stats->executed_transitions++; + + item = xbt_fifo_get_prev_item(item); } - depth++; + }else{ + + /* Traverse the stack from the initial state and re-execute the transitions */ + for (item = xbt_fifo_get_last_item(stack); + item != xbt_fifo_get_first_item(stack); + item = xbt_fifo_get_prev_item(item)) { + + pair = (mc_pair_t) xbt_fifo_get_item_content(item); + state = (mc_state_t) pair->graph_state; + + if(pair->requests > 0){ + + saved_req = MC_state_get_executed_request(state, &value); + //XBT_DEBUG("SavedReq->call %u", saved_req->call); + + if(saved_req != NULL){ + /* because we got a copy of the executed request, we have to fetch the + real one, pointed by the request field of the issuer process */ + req = &saved_req->issuer->simcall; + //XBT_DEBUG("Req->call %u", req->call); + + /* Debug information */ + if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){ + req_str = MC_request_to_string(req, value); + XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state); + xbt_free(req_str); + } + + } + + SIMIX_simcall_pre(req, value); + MC_wait_for_requests(); + } + + depth++; - /* Update statistics */ - mc_stats_pair->visited_pairs++; + /* 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; + else + MC_UNSET_RAW_MEM; + +} /** * \brief Dumps the contents of a model-checker's stack and shows the actual * execution trace * \param stack The stack to dump -*/ -void MC_dump_stack_safety_stateless(xbt_fifo_t stack) + */ +void MC_dump_stack_safety(xbt_fifo_t stack) { - mc_state_t state; + + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); - MC_show_stack_safety_stateless(stack); + MC_show_stack_safety(stack); - MC_SET_RAW_MEM; - while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL) - MC_state_delete(state); - MC_UNSET_RAW_MEM; + if(!_sg_mc_checkpoint){ + + mc_state_t state; + + MC_SET_RAW_MEM; + while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL) + MC_state_delete(state); + MC_UNSET_RAW_MEM; + + } + + if(raw_mem_set) + MC_SET_RAW_MEM; + else + MC_UNSET_RAW_MEM; + } -void MC_show_stack_safety_stateless(xbt_fifo_t stack) +void MC_show_stack_safety(xbt_fifo_t stack) { + + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + + MC_SET_RAW_MEM; + int value; mc_state_t state; xbt_fifo_item_t item; - smx_req_t req; + smx_simcall_t req; char *req_str = NULL; for (item = xbt_fifo_get_last_item(stack); @@ -378,23 +1498,12 @@ void MC_show_stack_safety_stateless(xbt_fifo_t stack) xbt_free(req_str); } } -} -void MC_show_deadlock(smx_req_t req) -{ - /*char *req_str = NULL;*/ - XBT_INFO("**************************"); - XBT_INFO("*** DEAD-LOCK DETECTED ***"); - XBT_INFO("**************************"); - XBT_INFO("Locked request:"); - /*req_str = MC_request_to_string(req); - XBT_INFO("%s", req_str); - xbt_free(req_str);*/ - XBT_INFO("Counter-example execution trace:"); - MC_dump_stack_safety_stateless(mc_stack_safety_stateless); + if(!raw_mem_set) + MC_UNSET_RAW_MEM; } -void MC_show_deadlock_stateful(smx_req_t req) +void MC_show_deadlock(smx_simcall_t req) { /*char *req_str = NULL;*/ XBT_INFO("**************************"); @@ -402,50 +1511,19 @@ void MC_show_deadlock_stateful(smx_req_t req) 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_show_stack_safety_stateful(mc_stack_safety_stateful); -} - -void MC_dump_stack_safety_stateful(xbt_fifo_t stack) -{ - //mc_state_ws_t state; - - MC_show_stack_safety_stateful(stack); - - /*MC_SET_RAW_MEM; - while ((state = (mc_state_t) xbt_fifo_pop(stack)) != NULL) - MC_state_delete(state); - MC_UNSET_RAW_MEM;*/ + MC_dump_stack_safety(mc_stack_safety); + MC_print_statistics(mc_stats); } -void MC_show_stack_safety_stateful(xbt_fifo_t stack) -{ - int value; - mc_state_ws_t state; - xbt_fifo_item_t item; - smx_req_t req; - char *req_str = NULL; - - for (item = xbt_fifo_get_last_item(stack); - (item ? (state = (mc_state_ws_t) (xbt_fifo_get_item_content(item))) - : (NULL)); item = xbt_fifo_get_prev_item(item)) { - req = MC_state_get_executed_request(state->graph_state, &value); - if(req){ - req_str = MC_request_to_string(req, value); - XBT_INFO("%s", req_str); - xbt_free(req_str); - } - } -} - -void MC_show_stack_liveness_stateful(xbt_fifo_t stack){ +void MC_show_stack_liveness(xbt_fifo_t stack){ int value; mc_pair_t pair; xbt_fifo_item_t item; - smx_req_t req; + smx_simcall_t req; char *req_str = NULL; for (item = xbt_fifo_get_last_item(stack); @@ -453,128 +1531,71 @@ void MC_show_stack_liveness_stateful(xbt_fifo_t stack){ : (NULL)); item = xbt_fifo_get_prev_item(item)) { req = MC_state_get_executed_request(pair->graph_state, &value); if(req){ - req_str = MC_request_to_string(req, value); - XBT_INFO("%s", req_str); - xbt_free(req_str); + if(pair->requests>0){ + req_str = MC_request_to_string(req, value); + XBT_INFO("%s", req_str); + xbt_free(req_str); + }else{ + XBT_INFO("End of system requests but evolution in Büchi automaton"); + } } } } -void MC_dump_stack_liveness_stateful(xbt_fifo_t stack){ +void MC_dump_stack_liveness(xbt_fifo_t stack){ + + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + mc_pair_t pair; MC_SET_RAW_MEM; while ((pair = (mc_pair_t) xbt_fifo_pop(stack)) != NULL) MC_pair_delete(pair); MC_UNSET_RAW_MEM; -} - -void MC_show_stack_liveness_stateless(xbt_fifo_t stack){ - int value; - mc_pair_stateless_t pair; - xbt_fifo_item_t item; - smx_req_t req; - char *req_str = NULL; - - for (item = xbt_fifo_get_last_item(stack); - (item ? (pair = (mc_pair_stateless_t) (xbt_fifo_get_item_content(item))) - : (NULL)); item = xbt_fifo_get_prev_item(item)) { - req = MC_state_get_executed_request(pair->graph_state, &value); - if(req){ - if(pair->requests>0){ - req_str = MC_request_to_string(req, value); - XBT_INFO("%s", req_str); - xbt_free(req_str); - }else{ - XBT_INFO("End of system requests but evolution in Büchi automaton"); - } - } - } -} -void MC_dump_stack_liveness_stateless(xbt_fifo_t stack){ - mc_pair_stateless_t pair; + if(raw_mem_set) + MC_SET_RAW_MEM; - MC_SET_RAW_MEM; - while ((pair = (mc_pair_stateless_t) xbt_fifo_pop(stack)) != NULL) - MC_pair_stateless_delete(pair); - MC_UNSET_RAW_MEM; } void MC_print_statistics(mc_stats_t stats) { - XBT_INFO("State space size ~= %lu", stats->state_size); - XBT_INFO("Expanded states = %lu", stats->expanded_states); - XBT_INFO("Visited states = %lu", stats->visited_states); + if(stats->expanded_pairs == 0){ + XBT_INFO("Expanded states = %lu", stats->expanded_states); + XBT_INFO("Visited states = %lu", stats->visited_states); + }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); - XBT_INFO("Expanded / Visited = %lf", - (double) stats->visited_states / stats->expanded_states); - /*XBT_INFO("Exploration coverage = %lf", - (double)stats->expanded_states / stats->state_size); */ -} - -void MC_print_statistics_pairs(mc_stats_pair_t stats) -{ - XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs); - XBT_INFO("Visited pairs = %lu", stats->visited_pairs); - //XBT_INFO("Executed transitions = %lu", stats->executed_transitions); - XBT_INFO("Expanded / Visited = %lf", - (double) stats->visited_pairs / stats->expanded_pairs); - /*XBT_INFO("Exploration coverage = %lf", - (double)stats->expanded_states / stats->state_size); */ -} - -void MC_assert(int prop) -{ - if (MC_IS_ENABLED && !prop) { - XBT_INFO("**************************"); - XBT_INFO("*** PROPERTY NOT VALID ***"); - XBT_INFO("**************************"); - XBT_INFO("Counter-example execution trace:"); - MC_dump_stack_safety_stateless(mc_stack_safety_stateless); - MC_print_statistics(mc_stats); - xbt_abort(); + MC_SET_RAW_MEM; + if((_sg_mc_dot_output_file != NULL) && (_sg_mc_dot_output_file[0]!='\0')){ + fprintf(dot_output, "}\n"); + fclose(dot_output); } + if(initial_state_safety != NULL && _sg_mc_comms_determinism){ + XBT_INFO("Communication-deterministic : %s", !initial_state_safety->comm_deterministic ? "No" : "Yes"); + XBT_INFO("Send-deterministic : %s", !initial_state_safety->send_deterministic ? "No" : "Yes"); + } + MC_UNSET_RAW_MEM; } -void MC_assert_stateful(int prop) +void MC_assert(int prop) { - if (MC_IS_ENABLED && !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_stateful(mc_stack_safety_stateful); + MC_dump_stack_safety(mc_stack_safety); MC_print_statistics(mc_stats); xbt_abort(); } } -void MC_assert_pair_stateful(int prop){ - if (MC_IS_ENABLED && !prop) { - XBT_INFO("**************************"); - XBT_INFO("*** PROPERTY NOT VALID ***"); - XBT_INFO("**************************"); - //XBT_INFO("Counter-example execution trace:"); - MC_show_stack_liveness_stateful(mc_stack_liveness_stateful); - //MC_dump_snapshot_stack(mc_snapshot_stack); - MC_print_statistics_pairs(mc_stats_pair); - xbt_abort(); - } -} - -void MC_assert_pair_stateless(int prop){ - if (MC_IS_ENABLED && !prop) { - XBT_INFO("**************************"); - XBT_INFO("*** PROPERTY NOT VALID ***"); - XBT_INFO("**************************"); - //XBT_INFO("Counter-example execution trace:"); - MC_show_stack_liveness_stateless(mc_stack_liveness_stateless); - //MC_dump_snapshot_stack(mc_snapshot_stack); - MC_print_statistics_pairs(mc_stats_pair); - xbt_abort(); - } +void MC_cut(void){ + user_max_depth_reached = 1; } void MC_process_clock_add(smx_process_t process, double amount) @@ -584,8 +1605,51 @@ void MC_process_clock_add(smx_process_t process, double amount) double MC_process_clock_get(smx_process_t process) { - if(mc_time) - return mc_time[process->pid]; - else + if(mc_time){ + if(process != NULL) + return mc_time[process->pid]; + else + return -1; + }else{ return 0; + } +} + +void MC_automaton_load(const char *file){ + + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + + MC_SET_RAW_MEM; + + if (_mc_property_automaton == NULL) + _mc_property_automaton = xbt_automaton_new(); + + xbt_automaton_load(_mc_property_automaton,file); + + MC_UNSET_RAW_MEM; + + if(raw_mem_set) + MC_SET_RAW_MEM; + +} + +void MC_automaton_new_propositional_symbol(const char* id, void* fct) { + + int raw_mem_set = (mmalloc_get_current_heap() == raw_heap); + + MC_SET_RAW_MEM; + + 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; + } + + +