autfilt.cc 25.4 KB
Newer Older
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
1
// -*- coding: utf-8 -*-
Alexandre Duret-Lutz's avatar
typos    
Alexandre Duret-Lutz committed
2
// Copyright (C) 2013, 2014, 2015, 2016 Laboratoire de Recherche et
3
// Développement de l'Epita (LRDE).
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
//
// This file is part of Spot, a model checking library.
//
// Spot is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// Spot is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

#include "common_sys.hh"

#include <string>
#include <iostream>
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
24
#include <limits>
25
26
#include <set>
#include <memory>
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
27
28
29
30
31
32
33

#include <argp.h>
#include "error.h"

#include "common_setup.hh"
#include "common_finput.hh"
#include "common_cout.hh"
34
#include "common_aoutput.hh"
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
35
#include "common_range.hh"
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
36
#include "common_post.hh"
37
#include "common_conv.hh"
38
#include "common_hoaread.hh"
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
39

40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
#include <spot/twaalgos/product.hh>
#include <spot/twaalgos/isdet.hh>
#include <spot/twaalgos/stutter.hh>
#include <spot/twaalgos/isunamb.hh>
#include <spot/misc/optionmap.hh>
#include <spot/misc/timer.hh>
#include <spot/misc/random.hh>
#include <spot/parseaut/public.hh>
#include <spot/tl/exclusive.hh>
#include <spot/twaalgos/remprop.hh>
#include <spot/twaalgos/randomize.hh>
#include <spot/twaalgos/are_isomorphic.hh>
#include <spot/twaalgos/canonicalize.hh>
#include <spot/twaalgos/mask.hh>
#include <spot/twaalgos/sepsets.hh>
#include <spot/twaalgos/stripacc.hh>
#include <spot/twaalgos/remfin.hh>
#include <spot/twaalgos/cleanacc.hh>
#include <spot/twaalgos/dtwasat.hh>
#include <spot/twaalgos/complement.hh>
#include <spot/twaalgos/strength.hh>
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
61

Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
62
static const char argp_program_doc[] ="\
63
Convert, transform, and filter omega-automata.\v\
64
65
66
67
Exit status:\n\
  0  if some automata were output\n\
  1  if no automata were output (no match)\n\
  2  if any error has been reported";
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
68

69
70
71
// Keep this list sorted
enum {
  OPT_ACC_SETS = 256,
72
  OPT_AP_N,
73
74
  OPT_ARE_ISOMORPHIC,
  OPT_CLEAN_ACC,
75
  OPT_CNF_ACC,
76
  OPT_COMPLEMENT,
77
78
  OPT_COMPLEMENT_ACC,
  OPT_COUNT,
79
  OPT_DECOMPOSE_STRENGTH,
80
81
82
  OPT_DESTUT,
  OPT_DNF_ACC,
  OPT_EDGES,
83
  OPT_EQUIVALENT_TO,
84
  OPT_EXCLUSIVE_AP,
85
  OPT_GENERIC,
86
  OPT_INSTUT,
87
  OPT_INCLUDED_IN,
88
89
90
91
  OPT_INTERSECT,
  OPT_IS_COMPLETE,
  OPT_IS_DETERMINISTIC,
  OPT_IS_EMPTY,
92
  OPT_IS_UNAMBIGUOUS,
93
94
  OPT_IS_TERMINAL,
  OPT_IS_WEAK,
95
  OPT_IS_INHERENTLY_WEAK,
96
97
98
  OPT_KEEP_STATES,
  OPT_MASK_ACC,
  OPT_MERGE,
99
100
  OPT_PRODUCT_AND,
  OPT_PRODUCT_OR,
101
  OPT_RANDOMIZE,
102
  OPT_REM_AP,
103
104
  OPT_REM_DEAD,
  OPT_REM_UNREACH,
105
  OPT_REM_FIN,
106
  OPT_SAT_MINIMIZE,
107
  OPT_SEED,
108
  OPT_SEP_SETS,
109
  OPT_SIMPLIFY_EXCLUSIVE_AP,
110
111
112
  OPT_STATES,
  OPT_STRIPACC,
};
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
113
114
115
116

static const argp_option options[] =
  {
    /**************************************************/
117
    { nullptr, 0, nullptr, 0, "Input:", 1 },
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
118
119
120
    { "file", 'F', "FILENAME", 0,
      "process the automaton in FILENAME", 0 },
    /**************************************************/
121
    { "count", 'c', nullptr, 0, "print only a count of matched automata", 3 },
122
    { "max-count", 'n', "NUM", 0, "output at most NUM automata", 3 },
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
123
    /**************************************************/
124
125
    { nullptr, 0, nullptr, 0, "Transformations:", 5 },
    { "merge-transitions", OPT_MERGE, nullptr, 0,
126
      "merge transitions with same destination and acceptance", 0 },
127
128
129
    { "product", OPT_PRODUCT_AND, "FILENAME", 0,
      "build the product with the automaton in FILENAME "
      "to intersect languages", 0 },
130
    { "product-and", 0, nullptr, OPTION_ALIAS, nullptr, 0 },
131
132
133
    { "product-or", OPT_PRODUCT_OR, "FILENAME", 0,
      "build the product with the automaton in FILENAME "
      "to sum languages", 0 },
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
134
    { "randomize", OPT_RANDOMIZE, "s|t", OPTION_ARG_OPTIONAL,
135
      "randomize states and transitions (specify 's' or 't' to "
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
136
      "randomize only states or transitions)", 0 },
137
138
    { "instut", OPT_INSTUT, "1|2", OPTION_ARG_OPTIONAL,
      "allow more stuttering (two possible algorithms)", 0 },
139
    { "destut", OPT_DESTUT, nullptr, 0, "allow less stuttering", 0 },
140
141
    { "mask-acc", OPT_MASK_ACC, "NUM[,NUM...]", 0,
      "remove all transitions in specified acceptance sets", 0 },
142
    { "strip-acceptance", OPT_STRIPACC, nullptr, 0,
143
      "remove the acceptance condition and all acceptance sets", 0 },
144
145
    { "keep-states", OPT_KEEP_STATES, "NUM[,NUM...]", 0,
      "only keep specified states.  The first state will be the new "\
146
      "initial state.  Implies --remove-unreachable-states.", 0 },
147
    { "dnf-acceptance", OPT_DNF_ACC, nullptr, 0,
148
      "put the acceptance condition in Disjunctive Normal Form", 0 },
149
    { "cnf-acceptance", OPT_CNF_ACC, nullptr, 0,
150
      "put the acceptance condition in Conjunctive Normal Form", 0 },
151
    { "remove-fin", OPT_REM_FIN, nullptr, 0,
152
      "rewrite the automaton without using Fin acceptance", 0 },
153
    { "cleanup-acceptance", OPT_CLEAN_ACC, nullptr, 0,
154
      "remove unused acceptance sets from the automaton", 0 },
155
156
157
    { "complement", OPT_COMPLEMENT, nullptr, 0,
      "complement each automaton (currently support only deterministic "
      "automata)", 0 },
158
    { "complement-acceptance", OPT_COMPLEMENT_ACC, nullptr, 0,
159
160
      "complement the acceptance condition (without touching the automaton)",
      0 },
161
162
163
    { "decompose-strength", OPT_DECOMPOSE_STRENGTH, "t|w|s", 0,
      "extract the (t) terminal, (w) weak, or (s) strong part of an automaton"
      " (letters may be combined to combine more strengths in the output)", 0 },
164
165
166
167
168
    { "exclusive-ap", OPT_EXCLUSIVE_AP, "AP,AP,...", 0,
      "if any of those APs occur in the automaton, restrict all edges to "
      "ensure two of them may not be true at the same time.  Use this option "
      "multiple times to declare independent groups of exclusive "
      "propositions.", 0 },
169
    { "simplify-exclusive-ap", OPT_SIMPLIFY_EXCLUSIVE_AP, nullptr, 0,
170
171
172
      "if --exclusive-ap is used, assume those AP groups are actually exclusive"
      " in the system to simplify the expression of transition labels (implies "
      "--merge-transitions)", 0 },
173
174
175
    { "remove-ap", OPT_REM_AP, "AP[=0|=1][,AP...]", 0,
      "remove atomic propositions either by existential quantification, or "
      "by assigning them 0 or 1", 0 },
176
    { "remove-unreachable-states", OPT_REM_UNREACH, nullptr, 0,
177
      "remove states that are unreachable from the initial state", 0 },
178
    { "remove-dead-states", OPT_REM_DEAD, nullptr, 0,
179
180
      "remove states that are unreachable, or that cannot belong to an "
      "infinite path", 0 },
181
    { "separate-sets", OPT_SEP_SETS, nullptr, 0,
182
183
      "if both Inf(x) and Fin(x) appear in the acceptance condition, replace "
      "Fin(x) by a new Fin(y) and adjust the automaton", 0 },
184
    { "sat-minimize", OPT_SAT_MINIMIZE, "options", OPTION_ARG_OPTIONAL,
Alexandre Duret-Lutz's avatar
typos    
Alexandre Duret-Lutz committed
185
      "minimize the automaton using a SAT solver (only works for deterministic"
186
187
      " automata)", 0 },
    /**************************************************/
188
    { nullptr, 0, nullptr, 0, "Filtering options:", 6 },
189
190
    { "ap", OPT_AP_N, "RANGE", 0,
      "match automata with a number of atomic propositions in RANGE", 0 },
191
    { "are-isomorphic", OPT_ARE_ISOMORPHIC, "FILENAME", 0,
192
      "keep automata that are isomorphic to the automaton in FILENAME", 0 },
193
194
    { "isomorphic", 0, nullptr, OPTION_ALIAS | OPTION_HIDDEN, nullptr, 0 },
    { "unique", 'u', nullptr, 0,
195
196
      "do not output the same automaton twice (same in the sense that they "\
      "are isomorphic)", 0 },
197
    { "is-complete", OPT_IS_COMPLETE, nullptr, 0,
198
      "keep complete automata", 0 },
199
    { "is-deterministic", OPT_IS_DETERMINISTIC, nullptr, 0,
200
      "keep deterministic automata", 0 },
201
    { "is-empty", OPT_IS_EMPTY, nullptr, 0,
202
      "keep automata with an empty language", 0 },
203
    { "is-unambiguous", OPT_IS_UNAMBIGUOUS, nullptr, 0,
204
      "keep only unambiguous automata", 0 },
205
206
207
208
    { "is-terminal", OPT_IS_TERMINAL, nullptr, 0,
      "keep only terminal automata", 0 },
    { "is-weak", OPT_IS_WEAK, nullptr, 0,
      "keep only weak automata", 0 },
209
210
    { "is-inherently-weak", OPT_IS_INHERENTLY_WEAK, nullptr, 0,
      "keep only inherently weak automata", 0 },
211
212
213
    { "intersect", OPT_INTERSECT, "FILENAME", 0,
      "keep automata whose languages have an non-empty intersection with"
      " the automaton from FILENAME", 0 },
214
215
216
    { "included-in", OPT_INCLUDED_IN, "FILENAME", 0,
      "keep automata whose languages are included in that of the "
      "automaton from FILENAME", 0 },
217
218
219
    { "equivalent-to", OPT_EQUIVALENT_TO, "FILENAME", 0,
      "keep automata thare are equivalent (language-wise) to the automaton "
      "in FILENAME", 0 },
220
    { "invert-match", 'v', nullptr, 0, "select non-matching automata", 0 },
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
221
222
    { "states", OPT_STATES, "RANGE", 0,
      "keep automata whose number of states are in RANGE", 0 },
223
224
225
226
    { "edges", OPT_EDGES, "RANGE", 0,
      "keep automata whose number of edges are in RANGE", 0 },
    { "acc-sets", OPT_ACC_SETS, "RANGE", 0,
      "keep automata whose number of acceptance sets are in RANGE", 0 },
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
227
    RANGE_DOC_FULL,
228
229
    { nullptr, 0, nullptr, 0,
      "If any option among --small, --deterministic, or --any is given, "
230
      "then the simplification level defaults to --high unless specified "
231
      "otherwise.  If any option among --low, --medium, or --high is given, "
232
      "then the simplification goal defaults to --small unless specified "
233
234
235
      "otherwise.  If none of those options are specified, then autfilt "
      "acts as is --any --low were given: these actually disable the "
      "simplification routines.", 22 },
236
    /**************************************************/
237
    { nullptr, 0, nullptr, 0, "Miscellaneous options:", -1 },
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
238
239
    { "extra-options", 'x', "OPTS", 0,
      "fine-tuning options (see spot-x (7))", 0 },
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
240
241
    { "seed", OPT_SEED, "INT", 0,
      "seed for the random number generator (0)", 0 },
242
    { nullptr, 0, nullptr, 0, nullptr, 0 }
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
243
244
  };

Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
245
static const struct argp_child children[] =
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
246
  {
247
    { &hoaread_argp, 0, nullptr, 0 },
248
249
    { &aoutput_argp, 0, nullptr, 0 },
    { &aoutput_io_format_argp, 0, nullptr, 4 },
250
    { &post_argp_disabled, 0, nullptr, 0 },
251
252
    { &misc_argp, 0, nullptr, -1 },
    { nullptr, 0, nullptr, 0 }
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
253
254
  };

255
typedef spot::twa_graph::graph_t::edge_storage_t tr_t;
256
typedef std::set<std::vector<tr_t>> unique_aut_t;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
257
static long int match_count = 0;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
258
259
260
261
static spot::option_map extra_options;
static bool randomize_st = false;
static bool randomize_tr = false;
static int opt_seed = 0;
262

263
// We want all these variables to be destroyed when we exit main, to
264
265
266
267
268
269
// make sure it happens before all other global variables (like the
// atomic propositions maps) are destroyed.  Otherwise we risk
// accessing deleted stuff.
static struct opt_t
{
  spot::bdd_dict_ptr dict = spot::make_bdd_dict();
270
271
  spot::twa_graph_ptr product_and = nullptr;
  spot::twa_graph_ptr product_or = nullptr;
272
  spot::twa_graph_ptr intersect = nullptr;
273
  spot::twa_graph_ptr included_in = nullptr;
274
275
  spot::twa_graph_ptr equivalent_pos = nullptr;
  spot::twa_graph_ptr equivalent_neg = nullptr;
276
  spot::twa_graph_ptr are_isomorphic = nullptr;
277
278
279
  std::unique_ptr<spot::isomorphism_checker>
                         isomorphism_checker = nullptr;
  std::unique_ptr<unique_aut_t> uniq = nullptr;
280
281
  spot::exclusive_ap excl_ap;
  spot::remove_ap rem_ap;
282
283
}* opt;

284
static bool opt_merge = false;
285
286
static bool opt_is_complete = false;
static bool opt_is_deterministic = false;
287
static bool opt_is_unambiguous = false;
288
289
static bool opt_is_terminal = false;
static bool opt_is_weak = false;
290
static bool opt_is_inherently_weak = false;
291
static bool opt_invert = false;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
292
static range opt_states = { 0, std::numeric_limits<int>::max() };
293
294
static range opt_edges = { 0, std::numeric_limits<int>::max() };
static range opt_accsets = { 0, std::numeric_limits<int>::max() };
295
static range opt_ap_n = { 0, std::numeric_limits<int>::max() };
296
static int opt_max_count = -1;
297
static bool opt_destut = false;
298
static char opt_instut = 0;
299
static bool opt_is_empty = false;
300
static bool opt_stripacc = false;
301
static bool opt_dnf_acc = false;
302
static bool opt_cnf_acc = false;
303
static bool opt_rem_fin = false;
304
static bool opt_clean_acc = false;
305
static bool opt_complement = false;
306
static bool opt_complement_acc = false;
307
static char* opt_decompose_strength = nullptr;
308
static spot::acc_cond::mark_t opt_mask_acc = 0U;
309
310
static std::vector<bool> opt_keep_states = {};
static unsigned int opt_keep_states_initial = 0;
311
static bool opt_simplify_exclusive_ap = false;
312
313
static bool opt_rem_dead = false;
static bool opt_rem_unreach = false;
314
static bool opt_sep_sets = false;
315
static const char* opt_sat_minimize = nullptr;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
316

317
318
319
320
321
322
323
324
325
326
327
328
static spot::twa_graph_ptr
ensure_deterministic(const spot::twa_graph_ptr& aut)
{
  if (spot::is_deterministic(aut))
    return aut;
  spot::postprocessor p;
  p.set_type(spot::postprocessor::Generic);
  p.set_pref(spot::postprocessor::Deterministic);
  p.set_level(level);
  return p.run(aut);
}

Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
329
330
331
332
333
334
static int
parse_opt(int key, char* arg, struct argp_state*)
{
  // This switch is alphabetically-ordered.
  switch (key)
    {
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
335
    case 'c':
336
      automaton_format = Count;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
337
      break;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
338
339
340
    case 'F':
      jobs.emplace_back(arg, true);
      break;
341
342
343
    case 'n':
      opt_max_count = to_pos_int(arg);
      break;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
344
    case 'u':
345
      opt->uniq =
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
346
347
        std::unique_ptr<unique_aut_t>(new std::set<std::vector<tr_t>>());
      break;
348
349
350
    case 'v':
      opt_invert = true;
      break;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
351
352
353
354
355
356
357
    case 'x':
      {
	const char* opt = extra_options.parse_options(arg);
	if (opt)
	  error(2, 0, "failed to parse --options near '%s'", opt);
      }
      break;
358
359
360
    case OPT_AP_N:
      opt_ap_n = parse_range(arg, 0, std::numeric_limits<int>::max());
      break;
361
362
363
    case OPT_ACC_SETS:
      opt_accsets = parse_range(arg, 0, std::numeric_limits<int>::max());
      break;
364
    case OPT_ARE_ISOMORPHIC:
365
      opt->are_isomorphic = read_automaton(arg, opt->dict);
366
      break;
367
368
369
    case OPT_CLEAN_ACC:
      opt_clean_acc = true;
      break;
370
371
372
373
    case OPT_CNF_ACC:
      opt_dnf_acc = false;
      opt_cnf_acc = true;
      break;
374
375
376
    case OPT_COMPLEMENT:
      opt_complement = true;
      break;
377
378
379
    case OPT_COMPLEMENT_ACC:
      opt_complement_acc = true;
      break;
380
381
382
    case OPT_DECOMPOSE_STRENGTH:
      opt_decompose_strength = arg;
      break;
383
384
385
386
387
    case OPT_DESTUT:
      opt_destut = true;
      break;
    case OPT_DNF_ACC:
      opt_dnf_acc = true;
388
      opt_cnf_acc = false;
389
      break;
390
391
392
    case OPT_EDGES:
      opt_edges = parse_range(arg, 0, std::numeric_limits<int>::max());
      break;
393
    case OPT_EXCLUSIVE_AP:
394
      opt->excl_ap.add_group(arg);
395
      break;
396
397
398
399
400
401
402
    case OPT_EQUIVALENT_TO:
      if (opt->equivalent_pos)
	error(2, 0, "only one --equivalent-to option can be given");
      opt->equivalent_pos = read_automaton(arg, opt->dict);
      opt->equivalent_neg =
	spot::dtwa_complement(ensure_deterministic(opt->equivalent_pos));
      break;
403
    case OPT_INSTUT:
404
405
406
407
408
409
      if (!arg || (arg[0] == '1' && arg[1] == 0))
	opt_instut = 1;
      else if (arg[0] == '2' && arg[1] == 0)
	opt_instut = 2;
      else
	error(2, 0, "unknown argument for --instut: %s", arg);
410
      break;
411
412
413
414
415
416
417
418
419
420
    case OPT_INCLUDED_IN:
      {
	auto aut = ensure_deterministic(read_automaton(arg, opt->dict));
	aut = spot::dtwa_complement(aut);
	if (!opt->included_in)
	  opt->included_in = aut;
	else
	  opt->included_in = spot::product_or(opt->included_in, aut);
      }
      break;
421
    case OPT_INTERSECT:
422
      opt->intersect = read_automaton(arg, opt->dict);
423
      break;
424
425
426
427
428
429
    case OPT_IS_COMPLETE:
      opt_is_complete = true;
      break;
    case OPT_IS_DETERMINISTIC:
      opt_is_deterministic = true;
      break;
430
431
432
    case OPT_IS_EMPTY:
      opt_is_empty = true;
      break;
433
434
435
    case OPT_IS_INHERENTLY_WEAK:
      opt_is_inherently_weak = true;
      break;
436
437
438
    case OPT_IS_UNAMBIGUOUS:
      opt_is_unambiguous = true;
      break;
439
440
441
442
443
444
    case OPT_IS_TERMINAL:
      opt_is_terminal = true;
      break;
    case OPT_IS_WEAK:
      opt_is_weak = true;
      break;
445
446
447
    case OPT_MERGE:
      opt_merge = true;
      break;
448
449
    case OPT_MASK_ACC:
      {
450
	for (auto res : to_longs(arg))
451
452
453
454
455
456
	  {
	    if (res < 0)
	      error(2, 0, "acceptance sets should be non-negative:"
		    " --mask-acc=%ld", res);
	    if (static_cast<unsigned long>(res)
		> sizeof(spot::acc_cond::mark_t::value_t))
457
	      error(2, 0, "this implementation does not support that many"
458
459
		    " acceptance sets: --mask-acc=%ld", res);
	    opt_mask_acc.set(res);
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
	  }
	break;
      }
    case OPT_KEEP_STATES:
      {
        std::vector<long> values = to_longs(arg);
        if (!values.empty())
          opt_keep_states_initial = values[0];
        for (auto res : values)
	  {
	    if (res < 0)
	      error(2, 0, "state ids should be non-negative:"
		    " --mask-acc=%ld", res);
            // We don't know yet how many states the automata contain.
            if (opt_keep_states.size() <= static_cast<unsigned long>(res))
              opt_keep_states.resize(res + 1, false);
	    opt_keep_states[res] = true;
477
	  }
478
	opt_rem_unreach = true;
479
480
	break;
      }
481
    case OPT_PRODUCT_AND:
482
      {
483
	auto a = read_automaton(arg, opt->dict);
484
485
	if (!opt->product_and)
	  opt->product_and = std::move(a);
486
	else
487
488
489
490
491
492
493
494
495
496
497
498
	  opt->product_and = spot::product(std::move(opt->product_and),
					   std::move(a));
      }
      break;
    case OPT_PRODUCT_OR:
      {
	auto a = read_automaton(arg, opt->dict);
	if (!opt->product_or)
	  opt->product_or = std::move(a);
	else
	  opt->product_or = spot::product_or(std::move(opt->product_or),
					     std::move(a));
499
500
      }
      break;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
    case OPT_RANDOMIZE:
      if (arg)
	{
	  for (auto p = arg; *p; ++p)
	    switch (*p)
	      {
	      case 's':
		randomize_st = true;
		break;
	      case 't':
		randomize_tr = true;
		break;
	      default:
		error(2, 0, "unknown argument for --randomize: '%c'", *p);
	      }
	}
      else
	{
	  randomize_tr = true;
	  randomize_st = true;
	}
      break;
523
    case OPT_REM_AP:
524
      opt->rem_ap.add_ap(arg);
525
      break;
526
527
528
    case OPT_REM_DEAD:
      opt_rem_dead = true;
      break;
529
530
531
    case OPT_REM_FIN:
      opt_rem_fin = true;
      break;
532
533
534
    case OPT_REM_UNREACH:
      opt_rem_unreach = true;
      break;
535
536
537
    case OPT_SAT_MINIMIZE:
      opt_sat_minimize = arg ? arg : "";
      break;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
538
539
540
    case OPT_SEED:
      opt_seed = to_int(arg);
      break;
541
542
543
    case OPT_SEP_SETS:
      opt_sep_sets = true;
      break;
544
545
546
547
    case OPT_SIMPLIFY_EXCLUSIVE_AP:
      opt_simplify_exclusive_ap = true;
      opt_merge = true;
      break;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
548
549
550
    case OPT_STATES:
      opt_states = parse_range(arg, 0, std::numeric_limits<int>::max());
      break;
551
552
553
    case OPT_STRIPACC:
      opt_stripacc = true;
      break;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
    case ARGP_KEY_ARG:
      jobs.emplace_back(arg, true);
      break;

    default:
      return ARGP_ERR_UNKNOWN;
    }
  return 0;
}


namespace
{
  class hoa_processor: public job_processor
  {
569
  private:
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
570
    spot::postprocessor& post;
571
    automaton_printer printer;
572
  public:
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
573
574

    hoa_processor(spot::postprocessor& post)
575
      : post(post), printer(aut_input)
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
576
577
578
579
    {
    }

    int
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
580
    process_formula(spot::formula, const char*, int)
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
581
582
583
584
585
    {
      SPOT_UNREACHABLE();
    }

    int
586
    process_automaton(const spot::const_parsed_aut_ptr& haut,
587
		      const char* filename)
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
588
589
590
    {
      spot::stopwatch sw;
      sw.start();
591

592
593
      // If --stats or --name is used, duplicate the automaton so we
      // never modify the original automaton (e.g. with
594
      // merge_edges()) and the statistics about it make sense.
595
      auto aut = ((automaton_format == Stats) || opt_name)
596
	? spot::make_twa_graph(haut->aut, spot::twa::prop_set::all())
597
	: haut->aut;
598

599
600
      // Preprocessing.

601
602
      if (opt_stripacc)
	spot::strip_acceptance_here(aut);
603
      if (opt_merge)
604
	aut->merge_edges();
605
      if (opt_clean_acc || opt_rem_fin)
606
	cleanup_acceptance_here(aut);
607
608
      if (opt_sep_sets)
	separate_sets_here(aut);
609
610
611
      if (opt_complement_acc)
	aut->set_acceptance(aut->acc().num_sets(),
			    aut->get_acceptance().complement());
612
613
      if (opt_rem_fin)
	aut = remove_fin(aut);
614
615
616
      if (opt_dnf_acc)
	aut->set_acceptance(aut->acc().num_sets(),
			    aut->get_acceptance().to_dnf());
617
618
619
      if (opt_cnf_acc)
	aut->set_acceptance(aut->acc().num_sets(),
			    aut->get_acceptance().to_cnf());
620

621
622
623
624
      // Filters.

      bool matched = true;

Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
625
      matched &= opt_states.contains(aut->num_states());
626
      matched &= opt_edges.contains(aut->num_edges());
627
      matched &= opt_accsets.contains(aut->acc().num_sets());
628
      matched &= opt_ap_n.contains(aut->ap().size());
629
630
631
632
      if (opt_is_complete)
	matched &= is_complete(aut);
      if (opt_is_deterministic)
	matched &= is_deterministic(aut);
633
634
635
636
      if (opt_is_deterministic)
	matched &= is_deterministic(aut);
      else if (opt_is_unambiguous)
	matched &= is_unambiguous(aut);
637
638
639
640
      if (opt_is_terminal)
	matched &= is_terminal_automaton(aut);
      else if (opt_is_weak)
	matched &= is_weak_automaton(aut);
641
642
      else if (opt_is_inherently_weak)
	matched &= is_inherently_weak_automaton(aut);
643
644
      if (opt->are_isomorphic)
        matched &= opt->isomorphism_checker->is_isomorphic(aut);
645
646
      if (opt_is_empty)
	matched &= aut->is_empty();
647
648
      if (opt->intersect)
	matched &= !spot::product(aut, opt->intersect)->is_empty();
649
650
      if (opt->included_in)
	matched &= spot::product(aut, opt->included_in)->is_empty();
651
652
653
654
      if (opt->equivalent_pos)
	matched &= spot::product(aut, opt->equivalent_neg)->is_empty()
	  && spot::product(dtwa_complement(ensure_deterministic(aut)),
			   opt->equivalent_pos)->is_empty();
655

656
657
      // Drop or keep matched automata depending on the --invert option
      if (matched == opt_invert)
658
659
        return 0;

660
661
      // Postprocessing.

662
663
664
      if (opt_mask_acc)
	aut = mask_acc_sets(aut, opt_mask_acc & aut->acc().all_sets());

665
666
      if (!opt->excl_ap.empty())
	aut = opt->excl_ap.constrain(aut, opt_simplify_exclusive_ap);
667

668
669
      if (!opt->rem_ap.empty())
	aut = opt->rem_ap.strip(aut);
670

671
672
      if (opt_destut)
	aut = spot::closure(std::move(aut));
673
      if (opt_instut == 1)
674
	aut = spot::sl(std::move(aut));
675
676
      else if (opt_instut == 2)
	aut = spot::sl2(std::move(aut));
677

678
679
680
681
682
683
684
      if (!opt_keep_states.empty())
	aut = mask_keep_states(aut, opt_keep_states, opt_keep_states_initial);
      if (opt_rem_dead)
	aut->purge_dead_states();
      else if (opt_rem_unreach)
	aut->purge_unreachable_states();

685
686
687
688
      if (opt->product_and)
	aut = spot::product(std::move(aut), opt->product_and);
      if (opt->product_or)
	aut = spot::product_or(std::move(aut), opt->product_or);
689

690
691
692
693
694
695
696
      if (opt_decompose_strength)
	{
	  aut = decompose_strength(aut, opt_decompose_strength);
	  if (!aut)
	    return 0;
	}

697
698
      if (opt_sat_minimize)
	{
699
	  aut = spot::sat_minimize(aut, opt_sat_minimize, sbacc);
700
701
702
703
	  if (!aut)
	    return 0;
	}

704
      if (opt_complement)
705
	aut = spot::dtwa_complement(ensure_deterministic(aut));
706

707
      aut = post.run(aut, nullptr);
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
708

Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
709
710
711
      if (randomize_st || randomize_tr)
	spot::randomize(aut, randomize_st, randomize_tr);

712
713
      const double conversion_time = sw.stop();

714
      if (opt->uniq)
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
715
716
        {
          auto tmp =
717
	    spot::canonicalize(make_twa_graph(aut,
718
						 spot::twa::prop_set::all()));
719
720
          if (!opt->uniq->emplace(tmp->edge_vector().begin() + 1,
				  tmp->edge_vector().end()).second)
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
721
722
723
	    return 0;
        }

724
725
      ++match_count;

726
      printer.print(aut, nullptr, filename, -1, conversion_time, haut);
727
728
729
730

      if (opt_max_count >= 0 && match_count >= opt_max_count)
	abort_run = true;

Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
731
732
      return 0;
    }
733

734
    int
735
    aborted(const spot::const_parsed_aut_ptr& h, const char* filename)
736
737
738
739
    {
      std::cerr << filename << ':' << h->loc << ": aborted input automaton\n";
      return 2;
    }
740
741
742
743

    int
    process_file(const char* filename)
    {
744
      auto hp = spot::automaton_stream_parser(filename, opt_parse);
745
      int err = 0;
746
      while (!abort_run)
747
	{
748
749
	  auto haut = hp.parse(opt->dict);
	  if (!haut->aut && haut->errors.empty())
750
	    break;
751
	  if (haut->format_errors(std::cerr))
752
	    err = 2;
753
	  if (!haut->aut)
754
	    error(2, 0, "failed to read automaton from %s", filename);
755
756
	  else if (haut->aborted)
	    err = std::max(err, aborted(haut, filename));
757
	  else
758
            process_automaton(haut, filename);
759
760
761
	}
      return err;
    }
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
762
763
764
765
766
767
768
769
770
  };
}

int
main(int argc, char** argv)
{
  setup(argv);

  const argp ap = { options, parse_opt, "[FILENAMES...]",
771
		    argp_program_doc, children, nullptr, nullptr };
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
772

773
774
775
776
777
778
  try
    {
      // This will ensure that all objects stored in this struct are
      // destroyed before global variables.
      opt_t o;
      opt = &o;
779

780
781
782
      // Disable post-processing as much as possible by default.
      level = spot::postprocessor::Low;
      pref = spot::postprocessor::Any;
783
      type = spot::postprocessor::Generic;
784
      if (int err = argp_parse(&ap, argc, argv, ARGP_NO_HELP, nullptr, nullptr))
785
	exit(err);
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
786

787
788
789
790
791
      if (level_set && !pref_set)
	pref = spot::postprocessor::Small;
      if (pref_set && !level_set)
	level = spot::postprocessor::High;

792
793
      if (jobs.empty())
	jobs.emplace_back("-", true);
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
794

795
796
797
      if (opt->are_isomorphic)
	{
	  if (opt_merge)
798
	    opt->are_isomorphic->merge_edges();
799
800
801
	  opt->isomorphism_checker = std::unique_ptr<spot::isomorphism_checker>
	    (new spot::isomorphism_checker(opt->are_isomorphic));
	}
802

803

804
      spot::srand(opt_seed);
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
805

806
      spot::postprocessor post(&extra_options);
807
      post.set_pref(pref | comp | sbacc);
808
809
      post.set_type(type);
      post.set_level(level);
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
810

811
      hoa_processor processor(post);
812
813
814
815
816
817
818
      if (processor.run())
	return 2;
    }
  catch (const std::runtime_error& e)
    {
      error(2, 0, "%s", e.what());
    }
819
820
821
822
  catch (const std::invalid_argument& e)
    {
      error(2, 0, "%s", e.what());
    }
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
823

824
  if (automaton_format == Count)
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
825
    std::cout << match_count << std::endl;
826

Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
827
  return !match_count;
Alexandre Duret-Lutz's avatar
Alexandre Duret-Lutz committed
828
}