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btormain.c
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btormain.c
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/* Boolector: Satisfiability Modulo Theories (SMT) solver.
*
* Copyright (C) 2007-2009 Robert Daniel Brummayer.
* Copyright (C) 2007-2016 Armin Biere.
* Copyright (C) 2012-2019 Aina Niemetz.
* Copyright (C) 2012-2018 Mathias Preiner.
*
* This file is part of Boolector.
* See COPYING for more information on using this software.
*/
#include "btormain.h"
#include "boolector.h"
#include "btorconfig.h"
#include "btorcore.h"
#include "btorexit.h"
#include "btoropt.h"
#include "btorparse.h"
#include "utils/btorhashptr.h"
#include "utils/btormem.h"
#include "utils/btoroptparse.h"
#include "utils/btorstack.h"
#include "utils/btorutil.h"
#include <assert.h>
#include <limits.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
typedef struct BtorMainApp BtorMainApp;
static BtorMainApp *g_app;
bool g_dual_threads;
static double g_start_time_real;
static uint32_t g_verbosity;
static uint32_t g_set_alarm;
#ifdef BTOR_HAVE_SIGNALS
static bool g_caught_sig;
static void (*sig_int_handler) (int32_t);
static void (*sig_segv_handler) (int32_t);
static void (*sig_abrt_handler) (int32_t);
static void (*sig_term_handler) (int32_t);
static void (*sig_bus_handler) (int32_t);
static void (*sig_alrm_handler) (int32_t);
#endif
BTOR_DECLARE_STACK (BtorOption, BtorOption);
/*------------------------------------------------------------------------*/
enum BtorMainOption
{
BTORMAIN_OPT_HELP,
BTORMAIN_OPT_COPYRIGHT,
BTORMAIN_OPT_VERSION,
BTORMAIN_OPT_TIME,
BTORMAIN_OPT_OUTPUT,
BTORMAIN_OPT_LGL_NOFORK,
BTORMAIN_OPT_HEX,
BTORMAIN_OPT_DEC,
BTORMAIN_OPT_BIN,
BTORMAIN_OPT_BTOR,
BTORMAIN_OPT_BTOR2,
BTORMAIN_OPT_SMT2,
BTORMAIN_OPT_SMT1,
BTORMAIN_OPT_DUMP_BTOR,
#if 0
BTORMAIN_OPT_DUMP_BTOR2,
#endif
BTORMAIN_OPT_DUMP_SMT,
BTORMAIN_OPT_DUMP_AAG,
BTORMAIN_OPT_DUMP_AIG,
BTORMAIN_OPT_DUMP_AIGER_MERGE,
BTORMAIN_OPT_SMT2_MODEL,
/* this MUST be the last entry! */
BTORMAIN_OPT_NUM_OPTS,
};
typedef enum BtorMainOption BtorMainOption;
typedef struct BtorMainOpt
{
bool general; /* general option? */
const char *shrt; /* short option identifier (may be 0) */
const char *lng; /* long option identifier */
const char *desc; /* description */
uint32_t val; /* value */
uint32_t dflt; /* default value */
uint32_t min; /* min value */
uint32_t max; /* max value */
bool candisable; /* can be disabled via '-(-)no-XX'? */
bool isflag; /* is option flag? */
BtorArgExpected arg; /* expects argument? */
} BtorMainOpt;
/*------------------------------------------------------------------------*/
struct BtorMainApp
{
Btor *btor;
BtorMemMgr *mm;
BtorMainOpt *options;
bool done;
int32_t err;
char *infile_name;
FILE *infile;
int32_t close_infile;
FILE *outfile;
char *outfile_name;
bool close_outfile;
};
/*------------------------------------------------------------------------*/
static void
btormain_init_opt (BtorMainApp *app,
BtorMainOption opt,
bool general,
bool isflag,
char *lng,
char *shrt,
uint32_t val,
uint32_t min,
uint32_t max,
bool candisable,
BtorArgExpected arg,
char *desc)
{
assert (app);
assert (lng);
assert (desc);
assert (max <= UINT32_MAX);
assert (min <= val);
assert (val <= max);
app->options[opt].general = general;
app->options[opt].lng = lng;
app->options[opt].shrt = shrt;
app->options[opt].val = val;
app->options[opt].dflt = val;
app->options[opt].min = min;
app->options[opt].max = max;
app->options[opt].desc = desc;
app->options[opt].candisable = candisable;
app->options[opt].isflag = isflag;
app->options[opt].arg = arg;
}
static void
btormain_init_opts (BtorMainApp *app)
{
assert (app);
BTOR_CNEWN (app->mm, app->options, BTORMAIN_OPT_NUM_OPTS);
btormain_init_opt (app,
BTORMAIN_OPT_HELP,
true,
true,
"help",
"h",
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"print this message and exit");
btormain_init_opt (app,
BTORMAIN_OPT_COPYRIGHT,
true,
true,
"copyright",
"c",
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"print copyright and exit");
btormain_init_opt (app,
BTORMAIN_OPT_VERSION,
true,
true,
"version",
"V",
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"print version and exit");
btormain_init_opt (app,
BTORMAIN_OPT_TIME,
true,
false,
"time",
"t",
0,
0,
UINT32_MAX,
false,
BTOR_ARG_EXPECT_INT,
"set time limit");
btormain_init_opt (app,
BTORMAIN_OPT_OUTPUT,
true,
false,
"output",
"o",
0,
0,
0,
false,
BTOR_ARG_EXPECT_STR,
"set output file for dumping");
#ifdef BTOR_USE_LINGELING
btormain_init_opt (app,
BTORMAIN_OPT_LGL_NOFORK,
true,
true,
"lingeling-nofork",
0,
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"do not use 'fork/clone' for Lingeling");
#endif
btormain_init_opt (app,
BTORMAIN_OPT_HEX,
true,
true,
"hex",
"x",
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"force hexadecimal number output");
btormain_init_opt (app,
BTORMAIN_OPT_DEC,
true,
true,
"dec",
"d",
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"force decimal number output");
btormain_init_opt (app,
BTORMAIN_OPT_BIN,
true,
true,
"bin",
"b",
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"force binary number output");
btormain_init_opt (app,
BTORMAIN_OPT_BTOR,
true,
true,
"btor",
0,
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"force BTOR input format");
btormain_init_opt (app,
BTORMAIN_OPT_BTOR2,
true,
true,
"btor2",
0,
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"force BTOR2 input format");
btormain_init_opt (app,
BTORMAIN_OPT_SMT2,
true,
true,
"smt2",
0,
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"force SMT-LIB v2 input format");
btormain_init_opt (app,
BTORMAIN_OPT_SMT1,
true,
true,
"smt1",
0,
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"force SMT-LIB v1 input format");
btormain_init_opt (app,
BTORMAIN_OPT_DUMP_BTOR,
true,
true,
"dump-btor",
"db",
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"dump formula in BTOR format");
#if 0
btormain_init_opt (app, BTORMAIN_OPT_DUMP_BTOR2, true, true,
"dump-btor2", "db2", 0, 0, 1,
false, BTOR_ARG_EXPECT_NONE,
"dump formula in BTOR 2.0 format");
#endif
btormain_init_opt (app,
BTORMAIN_OPT_DUMP_SMT,
true,
true,
"dump-smt",
"ds",
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"dump formula in SMT-LIB v2 format");
btormain_init_opt (app,
BTORMAIN_OPT_DUMP_AAG,
true,
true,
"dump-aag",
"daa",
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"dump QF_BV formula in ascii AIGER format");
btormain_init_opt (app,
BTORMAIN_OPT_DUMP_AIG,
true,
true,
"dump-aig",
"dai",
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"dump QF_BV formula in binary AIGER format");
btormain_init_opt (app,
BTORMAIN_OPT_DUMP_AIGER_MERGE,
true,
true,
"dump-aiger-merge",
"dam",
0,
0,
1,
true,
BTOR_ARG_EXPECT_NONE,
"merge all roots of AIG [0]");
btormain_init_opt (app,
BTORMAIN_OPT_SMT2_MODEL,
false,
true,
"smt2-model",
0,
0,
0,
1,
false,
BTOR_ARG_EXPECT_NONE,
"print model in SMT-LIB v2 format "
"if model generation is enabled");
}
static bool
btormain_opt_has_str_arg (const char *opt, BtorOpt *btor_opts)
{
assert (opt);
BtorMainOption mopt;
BtorMainOpt *mo;
size_t i;
for (mopt = 0; mopt < BTORMAIN_OPT_NUM_OPTS; mopt++)
{
mo = &g_app->options[mopt];
if ((mo->shrt && strcmp (mo->shrt, opt) == 0)
|| (mo->lng && strcmp (mo->lng, opt) == 0))
return g_app->options[mopt].arg == BTOR_ARG_EXPECT_STR;
}
for (i = 0; i < BTOR_OPT_NUM_OPTS; i++)
{
if (((btor_opts[i].shrt && strcmp (opt, btor_opts[i].shrt) == 0)
|| strcmp (opt, btor_opts[i].lng) == 0)
&& btor_opts[i].options)
return true;
}
return false;
}
/*------------------------------------------------------------------------*/
static BtorMainApp *
btormain_new_btormain (Btor *btor)
{
assert (btor);
BtorMainApp *res;
BtorMemMgr *mm;
mm = btor_mem_mgr_new ();
BTOR_CNEWN (mm, res, 1);
res->mm = mm;
res->btor = btor;
res->infile = stdin;
res->infile_name = "<stdin>";
res->outfile = stdout;
btormain_init_opts (res);
return res;
}
static void
btormain_delete_btormain (BtorMainApp *app)
{
assert (app);
BtorMemMgr *mm;
mm = app->mm;
BTOR_DELETEN (mm, app->options, BTORMAIN_OPT_NUM_OPTS);
boolector_delete (app->btor);
BTOR_DELETE (mm, app);
btor_mem_mgr_delete (mm);
}
/*------------------------------------------------------------------------*/
static void
btormain_error (BtorMainApp *app, char *msg, ...)
{
assert (app);
va_list list;
va_start (list, msg);
fputs ("boolector: ", stderr);
vfprintf (stderr, msg, list);
fprintf (stderr, "\n");
va_end (list);
app->err = BTOR_ERR_EXIT;
}
static void
btormain_msg (char *msg, ...)
{
assert (msg);
va_list list;
va_start (list, msg);
fprintf (stdout, "[btor>main] ");
vfprintf (stdout, msg, list);
fprintf (stdout, "\n");
va_end (list);
}
/*------------------------------------------------------------------------*/
#define LEN_OPTSTR 38
#define LEN_PARAMSTR 16
#define LEN_HELPSTR 81
#define IS_OPT(optlng, lng) (!strcmp (optlng, lng))
const char *
get_opt_val_string (BtorPtrHashTable *options, int32_t val)
{
BtorPtrHashTableIterator it;
BtorOptHelp *h;
char *s = 0;
if (options)
{
btor_iter_hashptr_init (&it, options);
while (btor_iter_hashptr_has_next (&it))
{
h = (BtorOptHelp *) it.bucket->data.as_ptr;
s = btor_iter_hashptr_next (&it);
if (val == h->val) break;
}
}
return s;
}
char *
get_opt_vals_string (BtorMemMgr *mm, BtorOpt *bo)
{
size_t i;
char *s = 0;
BtorCharStack argopts;
BtorPtrHashTableIterator it;
if (bo->options)
{
BTOR_INIT_STACK (mm, argopts);
btor_iter_hashptr_init (&it, bo->options);
while (btor_iter_hashptr_has_next (&it))
{
s = btor_iter_hashptr_next (&it);
for (i = 0; s[i]; i++) BTOR_PUSH_STACK (argopts, s[i]);
if (btor_iter_hashptr_has_next (&it))
{
BTOR_PUSH_STACK (argopts, ',');
BTOR_PUSH_STACK (argopts, ' ');
}
}
BTOR_PUSH_STACK (argopts, '\0');
s = btor_mem_strdup (mm, argopts.start);
BTOR_RELEASE_STACK (argopts);
}
return s;
}
static void
print_opt_line_fmt (BtorMainApp *app,
char *str,
char *prefix,
size_t prefix_len,
size_t max_len)
{
size_t i, j, len, slen;
char *line, *word, *s;
BtorCharPtrStack words_stack;
BTOR_CNEWN (app->mm, line, max_len);
BTOR_INIT_STACK (app->mm, words_stack);
slen = strlen (str) + 1;
BTOR_CNEWN (app->mm, s, slen);
strcpy (s, str);
word = strtok (s, " ");
while (word)
{
BTOR_PUSH_STACK (words_stack, btor_mem_strdup (app->mm, word));
word = strtok (0, " ");
}
BTOR_DELETEN (app->mm, s, slen);
sprintf (line, "%s ", prefix);
i = 0;
do
{
j = prefix_len;
for (; i < BTOR_COUNT_STACK (words_stack); i++)
{
word = BTOR_PEEK_STACK (words_stack, i);
len = strlen (word);
/* word does not fit into remaining line */
if (j + 1 + len >= max_len) break;
strcpy (line + j, word);
j += len;
line[j++] = ' ';
}
line[j] = 0;
fprintf (app->outfile, "%s\n", line);
BTOR_CLRN (line, max_len);
memset (line, ' ', prefix_len * sizeof (char));
} while (i < BTOR_COUNT_STACK (words_stack));
BTOR_DELETEN (app->mm, line, max_len);
while (!BTOR_EMPTY_STACK (words_stack))
btor_mem_freestr (app->mm, BTOR_POP_STACK (words_stack));
BTOR_RELEASE_STACK (words_stack);
}
static void
print_opt (BtorMainApp *app,
const char *lng,
const char *shrt,
bool isflag,
uint32_t dflt,
const char *dflt_str,
const char *opts_str,
const char *desc,
bool print_dflt)
{
assert (app);
assert (lng);
assert (desc);
char paramstr[LEN_PARAMSTR];
char *str;
size_t i, len, len_paramstr;
BtorCharStack optstr;
BtorMemMgr *mm;
mm = app->mm;
if (!strcmp (lng, "time"))
sprintf (paramstr, "<seconds>");
else if (!strcmp (lng, "output"))
sprintf (paramstr, "<file>");
else if (!strcmp (lng, boolector_get_opt_lng (app->btor, BTOR_OPT_ENGINE))
|| !strcmp (lng,
boolector_get_opt_lng (app->btor, BTOR_OPT_SAT_ENGINE)))
sprintf (paramstr, "<engine>");
else if (!isflag)
{
if (!dflt_str)
sprintf (paramstr, "<n>");
else
sprintf (paramstr, "<mode>");
}
else
paramstr[0] = '\0';
/* option string ------------------------------------------ */
BTOR_INIT_STACK (mm, optstr);
BTOR_PUSH_STACK (optstr, ' ');
BTOR_PUSH_STACK (optstr, ' ');
len_paramstr = strlen (paramstr);
if (shrt)
{
if (len_paramstr)
{
fprintf (app->outfile, " -%s %s,\n", shrt, paramstr);
BTOR_PUSH_STACK (optstr, ' ');
BTOR_PUSH_STACK (optstr, ' ');
}
else
{
BTOR_PUSH_STACK (optstr, '-');
for (i = 0, len = strlen (shrt); i < len; i++)
BTOR_PUSH_STACK (optstr, shrt[i]);
if (len_paramstr > 0) BTOR_PUSH_STACK (optstr, ' ');
for (i = 0; i < len_paramstr; i++) BTOR_PUSH_STACK (optstr, paramstr[i]);
BTOR_PUSH_STACK (optstr, ',');
BTOR_PUSH_STACK (optstr, ' ');
}
}
BTOR_PUSH_STACK (optstr, '-');
BTOR_PUSH_STACK (optstr, '-');
for (i = 0, len = strlen (lng); i < len; i++)
BTOR_PUSH_STACK (optstr, lng[i]);
if (len_paramstr > 0) BTOR_PUSH_STACK (optstr, '=');
for (i = 0; i < len_paramstr; i++)
BTOR_PUSH_STACK (optstr, paramstr[i]);
len = BTOR_COUNT_STACK (optstr);
for (i = len; i < LEN_OPTSTR - 1; i++) BTOR_PUSH_STACK (optstr, ' ');
BTOR_PUSH_STACK (optstr, '\0');
assert (strlen (optstr.start) <= LEN_OPTSTR);
/* formatted description ---------------------------------- */
/* append default value to description */
if (print_dflt)
{
if (dflt_str)
{
len = strlen (desc) + 3 + strlen (opts_str) + 3 + strlen (dflt_str);
BTOR_CNEWN (mm, str, len + 1);
sprintf (str, "%s {%s} [%s]", desc, opts_str, dflt_str);
}
else
{
len = strlen (desc) + 3 + btor_util_num_digits (dflt);
BTOR_CNEWN (mm, str, len + 1);
sprintf (str, "%s [%u]", desc, dflt);
}
}
else
{
len = strlen (desc);
BTOR_CNEWN (mm, str, len + 1);
sprintf (str, "%s", desc);
}
print_opt_line_fmt (app, str, optstr.start, LEN_OPTSTR, LEN_HELPSTR);
BTOR_DELETEN (mm, str, len + 1);
/* cleanup */
BTOR_RELEASE_STACK (optstr);
}
void
print_opt_help (BtorMainApp *app,
const char *shrt,
const char *lng,
const char *desc,
BtorPtrHashTable *opts)
{
assert (app);
assert (lng);
assert (desc);
assert (opts);
BtorPtrHashTableIterator it;
BtorOptHelp *hdata;
if (shrt)
fprintf (app->outfile, "Modes for option -%s, --%s: %s\n", shrt, lng, desc);
else
fprintf (app->outfile, "Modes for option --%s: %s\n", lng, desc);
btor_iter_hashptr_init (&it, opts);
while (btor_iter_hashptr_has_next (&it))
{
fprintf (app->outfile, "\n + %s:\n", (char *) it.cur);
hdata = (BtorOptHelp *) btor_iter_hashptr_next_data (&it)->as_ptr;
print_opt_line_fmt (app, (char *) hdata->msg, " ", 4, LEN_HELPSTR);
}
}
#define PRINT_MAIN_OPT(app, opt) \
do \
{ \
print_opt (app, \
(opt)->lng, \
(opt)->shrt, \
(opt)->isflag, \
(opt)->dflt, \
0, \
0, \
(opt)->desc, \
false); \
} while (0)
#define BOOLECTOR_OPTS_INFO_MSG \
"The following options can also be used in the form '-<short name>=<int>'" \
"\n" \
"and '--<long name>=<int>'. Flags are disabled with 0 and enabled with a " \
"pos." \
"\n" \
"integer. Alternatively, use '-no-<short name>' and '--no-<long name>' for" \
"\n" \
"disabling, and '-<short name>' and '--<long name>' for enabling flags." \
"\n\n" \
"You can query a more detailed help message for options that select a " \
"<mode>" \
"\n" \
"with -<short name>=help or --<long name>=help." \
"\n\n" \
"Note that all of the following options can also be set via env. variables " \
"of" \
"\n" \
"the form 'BTOR<capitalized long name without '-' and ':'>=<int>'." \
"\n\n"
static void
print_help (BtorMainApp *app)
{
assert (app);
BtorOption o;
BtorOptionStack ostack;
BtorMainOption mo;
FILE *out;
char *s, *fun, *sls, *prop, *aigprop, *quant;
size_t i;
BTOR_INIT_STACK (app->mm, ostack);
out = app->outfile;
fun = 0;
sls = 0;
prop = 0;
aigprop = 0;
quant = 0;
fprintf (out, "usage: boolector [<option>...][<input>]\n");
fprintf (out, "\n");
fprintf (out, "where <option> is one of the following:\n");
fprintf (out, "\n");
for (mo = 0; mo < BTORMAIN_OPT_NUM_OPTS; mo++)
{
if (!app->options[mo].general) continue;
if (mo == BTORMAIN_OPT_TIME || mo == BTORMAIN_OPT_HEX
|| mo == BTORMAIN_OPT_BTOR || mo == BTORMAIN_OPT_BTOR2
|| mo == BTORMAIN_OPT_DUMP_BTOR)
fprintf (out, "\n");
PRINT_MAIN_OPT (app, &app->options[mo]);
}
fprintf (out, "\n");
for (mo = 0; mo < BTORMAIN_OPT_NUM_OPTS; mo++)
{
if (app->options[mo].general) continue;
if (mo == BTORMAIN_OPT_LGL_NOFORK) continue;
PRINT_MAIN_OPT (app, &app->options[mo]);
if (mo == BTORMAIN_OPT_SMT2_MODEL) fprintf (out, "\n");
}
BTOR_PUSH_STACK (ostack, BTOR_OPT_ENGINE);
BTOR_PUSH_STACK (ostack, BTOR_OPT_SAT_ENGINE);
for (i = 0; i < BTOR_COUNT_STACK (ostack); i++)
{
o = BTOR_PEEK_STACK (ostack, i);
s = get_opt_vals_string(app->mm, &app->btor->options[o]);
print_opt (app,
app->btor->options[o].lng,
app->btor->options[o].shrt,
app->btor->options[o].isflag,
app->btor->options[o].dflt,
get_opt_val_string (app->btor->options[o].options,
app->btor->options[o].dflt),
s,
app->btor->options[o].desc,
true);
if (s) btor_mem_freestr(app->mm, s);
}
#ifdef BTOR_USE_LINGELING
PRINT_MAIN_OPT (app, &app->options[BTORMAIN_OPT_LGL_NOFORK]);
#endif
fprintf (out, "\n");
fprintf (out, BOOLECTOR_OPTS_INFO_MSG);
for (o = boolector_first_opt (app->btor); boolector_has_opt (app->btor, o);
o = boolector_next_opt (app->btor, o))
{
if (app->btor->options[o].internal) continue;
if (o == BTOR_OPT_AUTO_CLEANUP || o == BTOR_OPT_BETA_REDUCE
|| o == BTOR_OPT_INCREMENTAL || o == BTOR_OPT_INPUT_FORMAT
|| o == BTOR_OPT_ENGINE || o == BTOR_OPT_REWRITE_LEVEL
|| o == BTOR_OPT_SORT_EXP
|| (!fun && (fun = strstr (app->btor->options[o].lng, "fun:")))
|| (!sls && (sls = strstr (app->btor->options[o].lng, "sls:")))
|| (!prop && (prop = strstr (app->btor->options[o].lng, "prop:")))
|| (!aigprop
&& (aigprop = strstr (app->btor->options[o].lng, "aigprop:")))
|| (!quant && (quant = strstr (app->btor->options[o].lng, "quant:"))))
{
fprintf (out, "\n");
}
s = get_opt_vals_string (app->mm, &app->btor->options[o]);
print_opt (app,
app->btor->options[o].lng,
app->btor->options[o].shrt,
app->btor->options[o].isflag,
app->btor->options[o].dflt,
get_opt_val_string (app->btor->options[o].options,
app->btor->options[o].dflt),
s,
app->btor->options[o].desc,
true);
if (s) btor_mem_freestr (app->mm, s);
}
app->done = true;
BTOR_RELEASE_STACK (ostack);
}
static void
print_static_stats (int32_t sat_res)
{
#ifdef BTOR_TIME_STATISTICS
double real = btor_util_current_time () - g_start_time_real;
double process = btor_util_time_stamp ();
if (g_dual_threads)
btormain_msg ("%.1f seconds process, %.0f%% utilization",
process,
real > 0 ? (100 * process) / real / 2 : 0.0);
else
btormain_msg ("%.1f seconds process", process);
btormain_msg ("%.1f seconds real", real);
#endif
btormain_msg ("%s",
sat_res == BOOLECTOR_SAT
? "sat"
: (sat_res == BOOLECTOR_UNSAT ? "unsat" : "unknown"));
}
static void
print_sat_result (BtorMainApp *app, int32_t sat_result)
{
assert (app);
if (sat_result == BOOLECTOR_UNSAT)
fprintf (app->outfile, "unsat\n");
else if (sat_result == BOOLECTOR_SAT)
fprintf (app->outfile, "sat\n");
else
{
assert (sat_result == BOOLECTOR_UNKNOWN);
fprintf (app->outfile, "unknown\n");
}
}
/*------------------------------------------------------------------------*/
#ifdef BTOR_HAVE_SIGNALS
static void
reset_sig_handlers (void)
{
(void) signal (SIGINT, sig_int_handler);
(void) signal (SIGSEGV, sig_segv_handler);
(void) signal (SIGABRT, sig_abrt_handler);
(void) signal (SIGTERM, sig_term_handler);
(void) signal (SIGBUS, sig_bus_handler);
}
static void
catch_sig (int32_t sig)
{
if (!g_caught_sig)
{
g_caught_sig = true;
if (g_verbosity > 0)
{
boolector_print_stats (g_app->btor);
print_static_stats (0);
}
btormain_msg ("CAUGHT SIGNAL %d", sig);
fputs ("unknown\n", stdout);
fflush (stdout);
}
reset_sig_handlers ();
raise (sig);
}
static void
set_sig_handlers (void)
{
sig_int_handler = signal (SIGINT, catch_sig);
sig_segv_handler = signal (SIGSEGV, catch_sig);
sig_abrt_handler = signal (SIGABRT, catch_sig);
sig_term_handler = signal (SIGTERM, catch_sig);
sig_bus_handler = signal (SIGBUS, catch_sig);
}
static void
reset_alarm (void)
{
alarm (0);
(void) signal (SIGALRM, sig_alrm_handler);
}
static void
catch_alarm (int32_t sig)
{
(void) sig;
assert (sig == SIGALRM);
if (g_set_alarm > 0)
{
btormain_msg ("ALARM TRIGGERED: time limit %d seconds reached",
g_set_alarm);
if (g_verbosity > 0)
{
boolector_print_stats (g_app->btor);
print_static_stats (0);
}
fputs ("unknown\n", stdout);
fflush (stdout);
}
reset_alarm ();
_exit (0);
}
static void
set_alarm (void)
{
sig_alrm_handler = signal (SIGALRM, catch_alarm);
assert (g_set_alarm > 0);
alarm (g_set_alarm);
}
#endif
/*------------------------------------------------------------------------*/
int32_t