void
reach_sat_loop(reach_proc_t reach_proc, vset_t visited,
bitvector_t *reach_groups, long *eg_count, long *next_count, long *guard_count)
{
bitvector_t groups[max_sat_levels];
int empty_groups[max_sat_levels];
vset_t old_vis = vset_create(domain, -1, NULL);
vset_t prev_vis[nGrps];
for (int k = 0; k < max_sat_levels; k++)
bitvector_create(&groups[k], nGrps);
initialize_levels(groups, empty_groups, NULL, reach_groups);
for (int i = 0; i < max_sat_levels; i++)
prev_vis[i] = save_sat_levels?vset_create(domain, -1, NULL):NULL;
while (!vset_equal(old_vis, visited)) {
vset_copy(old_vis, visited);
for (int k = 0; k < max_sat_levels; k++) {
if (empty_groups[k]) continue;
Warning(infoLong, "Saturating level: %d", k);
reach_proc(visited, prev_vis[k], &groups[k], eg_count, next_count,guard_count);
check_invariants(visited, -1);
if (save_sat_levels) vset_copy(prev_vis[k], visited);
}
}
for (int k = 0; k < max_sat_levels; k++)
bitvector_free(&groups[k]);
vset_destroy(old_vis);
if (save_sat_levels)
for (int i = 0; i < max_sat_levels; i++) vset_destroy(prev_vis[i]);
}
int
dm_copy (const matrix_t *src, matrix_t *tgt)
{
tgt->rows = src->rows;
tgt->cols = src->cols;
tgt->bits_per_row = src->bits_per_row;
tgt->row_perm.data = NULL;
tgt->row_perm.count = NULL;
tgt->col_perm.data = NULL;
tgt->col_perm.count = NULL;
tgt->bits.data = NULL;
if (dm_copy_header (&(src->row_perm), &(tgt->row_perm))) {
dm_free (tgt);
return -1;
}
if (dm_copy_header (&(src->col_perm), &(tgt->col_perm))) {
dm_free (tgt);
return -1;
}
if (src->rows != 0 && src->cols != 0) {
if (bitvector_copy (&(tgt->bits), &(src->bits))) {
dm_free (tgt);
return -1;
}
} else {
bitvector_create(&(tgt->bits), 0);
}
return 0;
}
int
dm_create (matrix_t *m, const int rows, const int cols)
{
DMDBG (printf ("rows, cols: %d, %d\n", rows, cols));
m->rows = rows;
m->cols = cols;
m->row_perm.data = NULL;
m->col_perm.data = NULL;
m->bits.data = NULL;
// calculate the number of bits needed per row, dword aligned
size_t row_size =
(cols % 32) ? cols - (cols % 32) + 32 : cols;
m->bits_per_row = row_size;
if (bitvector_create (&(m->bits), rows * row_size)) {
dm_free (m);
return -1;
}
// create row header
if (dm_create_header (&(m->row_perm), rows)) {
dm_free (m);
return -1;
}
// create column header
if (dm_create_header (&(m->col_perm), cols)) {
dm_free (m);
return -1;
}
return 0;
}
void
ndfs_local_setup (run_t *run, wctx_t *ctx)
{
alg_local_t *loc = ctx->local;
size_t local_bits = 2;
int res = bitvector_create (&loc->color_map, local_bits<<dbs_size);
HREassert (res != -1, "Failure to allocate a color_map bitvector.");
if (all_red)
res = bitvector_create (&loc->stackbits, MAX_STACK);
HREassert (res != -1, "Failure to allocate a all_red bitvector.");
loc->rec_bits = 0;
loc->strat = get_strategy (run->alg);
loc->seed = state_info_create ();
size_t len = state_info_serialize_int_size (ctx->state);
//state_info_add_simple (ctx->state, sizeof(int), &loc->bits);
//state_info_add_simple (ctx->local->seed, sizeof(int), &loc->seed_bits);
loc->stack = dfs_stack_create (len);
}
int test_create_destroy()
{
printf("test_create_destroy()... ");fflush(NULL);
cbitvector a = NULL;
a = bitvector_create();
if (a == NULL)
{
printf("\nERROR in test_create_destroy() creation seems to have failed\n");
return 1;
}
bitvector_destroy(&a);
if (a != NULL)
{
printf("\nERROR in test_create_destroy() destruction seems to have failed\n");
return 1;
}
printf("success\n");
return 0;
}
int
main (void)
{
bitvector_t b1;
bitvector_t b2;
bitvector_create (&b1, 20);
user_bitvector_print (&b1);
bitvector_set (&b1, 4);
user_bitvector_print (&b1);
bitvector_copy (&b2, &b1);
bitvector_unset (&b1, 4);
user_bitvector_print (&b1);
user_bitvector_print (&b2);
// test is_empty
printf ("is_empty b1? %c (should be t)\n", bitvector_is_empty(&b1)?'t':'f');
printf ("is_empty b2? %c (should be f)\n", bitvector_is_empty(&b2)?'t':'f');
// set even/odd bits in b1/b2
for(int i=0; i<20; ++i)
{
if (i%2)
{
bitvector_set(&b1,i);
} else {
bitvector_set(&b2,i);
}
}
// print before union
printf ("before union\n");
user_bitvector_print (&b1);
user_bitvector_print (&b2);
// disjoint?
printf ("b1,b2 are disjoint %c (should be t)\n", bitvector_is_disjoint(&b1, &b2)?'t':'f');
printf ("union\n");
bitvector_union(&b1, &b2);
// disjoint?
printf ("b1,b2 are disjoint %c (should be f)\n", bitvector_is_disjoint(&b1, &b2)?'t':'f');
// print after union
user_bitvector_print (&b1);
user_bitvector_print (&b2);
printf ("intersect\n");
bitvector_intersect(&b1, &b2);
// disjoint?
printf ("b1,b2 are disjoint %c (should be f)\n", bitvector_is_disjoint(&b1, &b2)?'t':'f');
// print after intersection
user_bitvector_print (&b1);
user_bitvector_print (&b2);
printf ("invert b1\n");
bitvector_invert(&b1);
// print after inversion
user_bitvector_print (&b1);
// disjoint?
printf ("b1,b2 are disjoint %c (should be t)\n", bitvector_is_disjoint(&b1, &b2)?'t':'f');
bitvector_free (&b2);
bitvector_free (&b1);
matrix_t m1;
matrix_t m2;
dm_create (&m1, 10, 10);
print_matrix (&m1);
printf ("dm_set(4,4)\n");
dm_set (&m1, 4, 4);
print_matrix (&m1);
printf ("dm_unset(4,4)\n");
dm_unset (&m1, 4, 4);
print_matrix (&m1);
printf ("test shift permutation (3,4,5)(6,7)\n");
printf ("before\n");
dm_set (&m1, 3, 3);
dm_set (&m1, 4, 4);
dm_set (&m1, 5, 5);
dm_set (&m1, 6, 6);
dm_set (&m1, 7, 7);
print_matrix (&m1);
printf ("after\n");
// create permutation_group, apply
permutation_group_t o1;
dm_create_permutation_group (&o1, 2, NULL);
dm_add_to_permutation_group (&o1, 3);
dm_add_to_permutation_group (&o1, 4);
dm_add_to_permutation_group (&o1, 5);
dm_close_group (&o1);
dm_add_to_permutation_group (&o1, 6);
dm_add_to_permutation_group (&o1, 7);
dm_permute_cols (&m1, &o1);
print_matrix (&m1);
dm_free_permutation_group (&o1);
printf ("swap cols 6,7\n");
dm_swap_cols (&m1, 6, 7);
print_matrix (&m1);
printf ("swap rows 6,7\n");
dm_swap_rows (&m1, 6, 7);
print_matrix (&m1);
printf ("copy\n");
dm_create(&m2, dm_nrows(&m1), dm_ncols(&m1));
dm_copy (&m1, &m2);
// TODO: needs some more work
print_matrix (&m2);
dm_sort_rows (&m1, &min_row_first);
print_matrix (&m1);
dm_sort_rows (&m1, &max_row_first);
print_matrix (&m1);
dm_print_perm (&(m1.row_perm));
printf ("to nub rows added & resorted\n");
dm_set (&m1, 7, 3);
dm_set (&m1, 8, 4);
dm_sort_rows (&m1, &max_row_first);
print_matrix (&m1);
printf ("flatten \n");
dm_flatten (&m1);
print_matrix (&m1);
dm_print_perm (&(m1.row_perm));
printf ("nub sorted\n");
//dm_nub_rows (&m1, &eq_rows, NULL);
print_matrix (&m1);
dm_print_perm (&(m1.row_perm));
/*
* printf("again, now to test row order & nub idx\n"); dm_free(&m1);
* dm_create(&m1, 10, 10); dm_set(&m1, 0,0); dm_set(&m1, 1,0);
* dm_set(&m1, 2,3); dm_set(&m1, 3,3); print_matrix(&m1);
*
* printf("nub sorted\n");
*
* dm_nub_rows(&m1);
*
* print_matrix(&m1);
*
* dm_print_perm(&(m1.row_perm)); */
printf ("optimize sorted\n");
dm_set (&m1, 0, 7);
dm_set (&m1, 1, 6);
dm_set (&m1, 3, 9);
printf ("before\n");
print_matrix (&m1);
dm_optimize (&m1);
printf ("after\n");
print_matrix (&m1);
printf ("resorted\n");
dm_sort_rows (&m1, &max_row_first);
print_matrix (&m1);
/*
dm_nub_cols(&m1);
dm_ungroup_rows(&m1);
dm_ungroup_cols(&m1);
print_matrix (&m1);
*/
// get bitvector from matrix text
bitvector_create (&b1, 6);
bitvector_create (&b2, 10);
printf ("bitvector of row 0\n");
user_bitvector_print (&b2);
printf ("bitvector of col 8\n");
user_bitvector_print (&b1);
bitvector_free (&b2);
bitvector_free (&b1);
printf ("count test\n");
for (int i = 0; i < dm_nrows (&m1); i++)
printf ("ones in row %d: %d\n", i, dm_ones_in_row (&m1, i));
for (int i = 0; i < dm_ncols (&m1); i++)
printf ("ones in col %d: %d\n", i, dm_ones_in_col (&m1, i));
printf ("iterator test\n");
dm_row_iterator_t mx;
dm_col_iterator_t my;
for (int i = 0; i < dm_nrows (&m1); i++) {
printf ("iterator row: %d\n", i);
dm_create_row_iterator (&mx, &m1, i);
int r;
while ((r = dm_row_next (&mx)) != -1)
printf (" next: %d\n", r);
printf ("\n\n");
}
for (int i = 0; i < dm_ncols (&m1); i++) {
printf ("iterator col: %d\n", i);
dm_create_col_iterator (&my, &m1, i);
int r;
while ((r = dm_col_next (&my)) != -1)
printf (" next: %d\n", r);
printf ("\n\n");
}
printf ("projection test\n");
int s0[10];
int src[10];
int prj[2];
int tgt[10];
// initialize
for (int i = 0; i < 10; i++) {
s0[i] = -i;
src[i] = i;
}
// do projection
int prj_n = dm_project_vector (&m1, 0, src, prj);
// print projection
printf ("projection:");
for (int i = 0; i < prj_n; i++) {
printf (" %d", prj[i]);
}
printf ("\n");
printf ("expansion test\n");
// do expansion
int exp_n = dm_expand_vector (&m1, 0, s0, prj, tgt);
(void)exp_n;
// print expansion
printf ("expansion:");
for (int i = 0; i < 10; i++) {
printf (" %d", tgt[i]);
}
printf ("\n");
// subsumption
printf ("subsumption test:\n");
dm_swap_rows (&m1, 0, 3);
dm_swap_rows (&m1, 1, 2);
dm_flatten (&m1);
print_matrix (&m1);
dm_subsume_rows (&m1, &eq_rows, NULL);
printf ("after subsumption:\n");
print_matrix (&m1);
printf ("\n");
printf ("after ungrouping:\n");
dm_ungroup_rows (&m1);
print_matrix (&m1);
printf ("\n");
printf ("column sort test:\n");
dm_flatten (&m1);
printf ("max col first:\n");
dm_sort_cols (&m1, &max_col_first);
print_matrix (&m1);
printf ("min col first:\n");
dm_sort_cols (&m1, &min_col_first);
print_matrix (&m1);
printf ("nub columns test:\n");
dm_set (&m1, 0, 1);
dm_set (&m1, 3, 1);
dm_set (&m1, 3, 4);
dm_set (&m1, 3, 5);
dm_sort_cols (&m1, &max_col_first);
// dm_flatten(&m1);
printf ("max col first:\n");
print_matrix (&m1);
//printf ("subsume columns:\n");
//dm_subsume_cols (&m1, &eq_cols, NULL);
//dm_subsume_rows (&m1, &eq_rows, NULL);
print_matrix (&m1);
printf ("column permutation:\n");
dm_print_perm (&(m1.col_perm));
printf ("optimize columns:\n");
dm_optimize (&m1);
print_matrix (&m1);
//printf ("ungroup columns:\n");
//dm_ungroup_cols (&m1);
//print_matrix (&m1);
//printf ("all permutations:\n");
//dm_set (&m1, 0, 9);
//dm_nub_cols(&m1, &eq_cols, NULL);
//print_matrix (&m1);
//dm_all_perm (&m1);
dm_free (&m2);
dm_free (&m1);
return 0;
}
static void
initialize_levels(bitvector_t *groups, int *empty_groups, int *back,
bitvector_t *reach_groups)
{
int level[nGrps];
// groups: i = 0 .. nGrps - 1
// vars : j = 0 .. N - 1
// level[i] = first '+' in row (highest in BDD) of group i
// recast 0 .. N - 1 down to equal groups 0 .. (N - 1) / sat_granularity
for (int i = 0; i < nGrps; i++) {
level[i] = -1;
for (int j = 0; j < N; j++) {
if (dm_is_set(GBgetDMInfo(model), i, j)) {
level[i] = (N - j - 1) / sat_granularity;
break;
}
}
if (level[i] == -1)
level[i] = 0;
}
for (int i = 0; i < nGrps; i++)
bitvector_set(&groups[level[i]], i);
// Limit the bit vectors to the groups we are interested in and establish
// which saturation levels are not used.
for (int k = 0; k < max_sat_levels; k++) {
bitvector_intersect(&groups[k], reach_groups);
empty_groups[k] = bitvector_is_empty(&groups[k]);
}
if (back == NULL)
return;
// back[k] = last + in any group of level k
bitvector_t level_matrix[max_sat_levels];
for (int k = 0; k < max_sat_levels; k++) {
bitvector_create(&level_matrix[k], N);
back[k] = max_sat_levels;
}
for (int i = 0; i < nGrps; i++) {
dm_row_union(&level_matrix[level[i]], GBgetDMInfo(model), i);
}
for (int k = 0; k < max_sat_levels; k++) {
for (int j = 0; j < k; j++) {
bitvector_t temp;
int empty;
bitvector_copy(&temp, &level_matrix[j]);
bitvector_intersect(&temp, &level_matrix[k]);
empty = bitvector_is_empty(&temp);
bitvector_free(&temp);
if (!empty)
if (j < back[k]) back[k] = j;
}
if (back[k] == max_sat_levels && !bitvector_is_empty(&level_matrix[k]))
back[k] = k + 1;
}
for (int k = 0; k < max_sat_levels; k++)
bitvector_free(&level_matrix[k]);
}
static void actual_main(void *arg)
#endif
{
int argc = ((struct args_t*)arg)->argc;
char **argv = ((struct args_t*)arg)->argv;
/* initialize HRE */
HREinitBegin(argv[0]);
HREaddOptions(options,"Perform a symbolic reachability analysis of <model>\n"
"The optional output of this analysis is an ETF "
"representation of the input\n\nOptions");
lts_lib_setup(); // add options for LTS library
HREinitStart(&argc,&argv,1,2,files,"<model> [<etf>]");
/* initialize HRE on other workers */
init_hre(HREglobal());
/* check for unsupported options */
if (PINS_POR != PINS_POR_NONE) Abort("Partial-order reduction and symbolic model checking are not compatible.");
if (inhibit_matrix != NULL && sat_strategy != NO_SAT) Abort("Maximal progress is incompatibale with saturation.");
if (files[1] != NULL) {
char *ext = strrchr(files[1], '.');
if (ext == NULL || ext == files[1]) {
Abort("Output filename has no extension!");
}
if (strcasecmp(ext, ".etf") != 0) {
// not ETF
if (!(vset_default_domain == VSET_Sylvan && strcasecmp(ext, ".bdd") == 0) &&
!(vset_default_domain == VSET_LDDmc && strcasecmp(ext, ".ldd") == 0)) {
Abort("Only supported output formats are ETF, BDD (with --vset=sylvan) and LDD (with --vset=lddmc)");
}
if (PINS_USE_GUARDS) {
Abort("Exporting symbolic state space not comptabile with "
"guard-splitting");
}
}
}
#ifdef HAVE_SYLVAN
if (!USE_PARALLELISM) {
if (strategy == PAR_P) {
strategy = BFS_P;
Print(info, "Front-end not thread-safe; using --order=bfs-prev instead of --order=par-prev.");
} else if (strategy == PAR) {
strategy = BFS;
Print(info, "Front-end not thread-safe; using --order=bfs instead of --order=par.");
}
}
#endif
/* turn off Lace for now to speed up while not using parallelism */
lace_suspend();
/* initialize the model and PINS wrappers */
init_model(files[0]);
/* initialize action detection */
act_label = lts_type_find_edge_label_prefix (ltstype, LTSMIN_EDGE_TYPE_ACTION_PREFIX);
if (act_label != -1) action_typeno = lts_type_get_edge_label_typeno(ltstype, act_label);
if (act_detect != NULL) init_action_detection();
bitvector_create(&state_label_used, sLbls);
if (inv_detect != NULL) init_invariant_detection();
else if (PINS_USE_GUARDS) {
for (int i = 0; i < nGuards; i++) {
bitvector_set(&state_label_used, i);
}
}
init_maxsum(ltstype);
/* turn on Lace again (for Sylvan) */
if (vset_default_domain==VSET_Sylvan || vset_default_domain==VSET_LDDmc) {
lace_resume();
}
if (next_union) vset_next_fn = vset_next_union_src;
init_domain(VSET_IMPL_AUTOSELECT);
vset_t initial = vset_create(domain, -1, NULL);
int *src = RTmalloc (sizeof(int[N]));
GBgetInitialState(model, src);
vset_add(initial, src);
Print(infoShort, "got initial state");
/* if writing .dot files, open directory first */
if (dot_dir != NULL) {
DIR* dir = opendir(dot_dir);
if (dir) {
closedir(dir);
} else if (ENOENT == errno) {
Abort("Option 'dot-dir': directory '%s' does not exist", dot_dir);
} else {
Abort("Option 'dot-dir': failed opening directory '%s'", dot_dir);
}
}
if (vset_dir != NULL) {
DIR *dir = opendir(vset_dir);
if (dir) {
closedir(dir);
} else if (errno == ENOENT) {
Abort("Option 'save-levels': directory '%s' does not exist", vset_dir);
} else {
Abort("Option 'save-levels': failed opening directory '%s'", vset_dir);
}
}
init_mu_calculus();
/* determine if we need to generate a symbolic parity game */
#ifdef LTSMIN_PBES
bool spg = true;
#else
bool spg = GBhaveMucalc() ? true : false;
#endif
/* if spg, then initialize labeling stuff before reachability */
if (spg) {
Print(infoShort, "Generating a Symbolic Parity Game (SPG).");
init_spg(model);
}
/* create timer */
reach_timer = RTcreateTimer();
/* fix level 0 */
visited = vset_create(domain, -1, NULL);
vset_copy(visited, initial);
/* check the invariants at level 0 */
check_invariants(visited, 0);
/* run reachability */
run_reachability(visited, files[1]);
/* report states */
final_stat_reporting(visited);
/* save LTS */
if (files[1] != NULL) {
char *ext = strrchr(files[1], '.');
if (strcasecmp(ext, ".etf") == 0) {
do_output(files[1], visited);
} else {
// if not .etf, then the filename ends with .bdd or .ldd, symbolic LTS
do_dd_output (initial, visited, files[1]);
}
}
compute_maxsum(visited, domain);
CHECK_MU(visited, src);
if (max_mu_count > 0) {
Print(info, "Mu-calculus peak nodes: %ld", max_mu_count);
}
/* optionally print counts of all group_next and group_explored sets */
final_final_stats_reporting ();
if (spg) { // converting the LTS to a symbolic parity game, save and solve.
lts_to_pg_solve (visited, src);
}
#ifdef HAVE_SYLVAN
/* in case other Lace threads were still suspended... */
if (vset_default_domain!=VSET_Sylvan && vset_default_domain!=VSET_LDDmc) {
lace_resume();
} else if (SYLVAN_STATS) {
sylvan_stats_report(stderr);
}
#endif
RTfree (src);
GBExit(model);
}
