1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2007 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 #include <language/tests/check-model.h>
24 #include <libpspp/model-checker.h>
25 #include <language/lexer/lexer.h>
28 #include "fwriteerror.h"
31 #define _(msgid) gettext (msgid)
32 #define N_(msgid) msgid
38 search=strategy:broad/deep/random,
42 queue=:limit(n:queue_limit,"%s>0"),
43 drop:newest/oldest/random;
45 stop=:states(n:max_unique_states,"%s>0"),
46 :errors(n:max_errors),
47 :timeout(d:time_limit,"%s>0");
48 progress=progress:none/dots/fancy;
49 output=:verbosity(n:verbosity),
50 :errverbosity(n:err_verbosity),
56 static struct mc_options *parse_options (struct lexer *);
57 static void print_results (const struct mc_results *, FILE *);
59 /* Parses a syntax description of model checker options from
60 LEXER and passes them, along with AUX, to the CHECKER
61 function, which must wrap a call to mc_run and return the
62 mc_results that it returned. This function then prints a
63 description of the mc_results to the output file. Returns
64 true if the model checker run found no errors, false
67 check_model (struct lexer *lexer,
68 struct mc_results *(*checker) (struct mc_options *, void *aux),
71 struct mc_options *options;
72 struct mc_results *results;
76 options = parse_options (lexer);
79 output_file = mc_options_get_output_file (options);
81 results = checker (options, aux);
83 print_results (results, output_file);
85 if (output_file != stdout && output_file != stderr)
87 if (fwriteerror (output_file) < 0)
89 /* We've already discarded the name of the output file.
91 error (0, errno, "error closing output file");
95 ok = mc_results_get_error_count (results) == 0;
96 mc_results_destroy (results);
101 /* Fancy progress function for mc_options_set_progress_func. */
103 fancy_progress (struct mc *mc)
105 const struct mc_results *results = mc_get_results (mc);
106 if (mc_results_get_stop_reason (results) == MC_CONTINUING)
107 fprintf (stderr, "Processed %d unique states, max depth %d, "
108 "dropped %d duplicates...\r",
109 mc_results_get_unique_state_count (results),
110 mc_results_get_max_depth_reached (results),
111 mc_results_get_duplicate_dropped_states (results));
117 /* Parses options from LEXER and returns a corresponding
118 mc_options, or a null pointer if parsing fails. */
119 static struct mc_options *
120 parse_options (struct lexer *lexer)
122 struct cmd_check_model cmd;
123 struct mc_options *options;
125 if (!parse_check_model (lexer, NULL, &cmd, NULL))
128 options = mc_options_create ();
129 if (cmd.strategy != -1)
130 mc_options_set_strategy (options,
131 cmd.strategy == CHM_BROAD ? MC_BROAD
132 : cmd.strategy == CHM_DEEP ? MC_DEEP
133 : cmd.strategy == CHM_RANDOM ? MC_RANDOM
135 if (cmd.sbc_path > 0)
137 if (cmd.sbc_search > 0)
138 msg (SW, _("PATH and SEARCH subcommands are mutually exclusive. "
142 struct subc_list_int *list = &cmd.il_path[0];
143 int count = subc_list_int_count (list);
149 mc_path_init (&path);
150 for (i = 0; i < count; i++)
151 mc_path_push (&path, subc_list_int_at (list, i));
152 mc_options_set_follow_path (options, &path);
153 mc_path_destroy (&path);
156 msg (SW, _("At least one value must be specified on PATH."));
159 if (cmd.max_depth != LONG_MIN)
160 mc_options_set_max_depth (options, cmd.max_depth);
161 if (cmd.hash_bits != LONG_MIN)
164 mc_options_set_hash_bits (options, cmd.hash_bits);
165 hash_bits = mc_options_get_hash_bits (options);
166 if (hash_bits != cmd.hash_bits)
167 msg (SW, _("Hash bits adjusted to %d."), hash_bits);
169 if (cmd.queue_limit != LONG_MIN)
170 mc_options_set_queue_limit (options, cmd.queue_limit);
173 enum mc_queue_limit_strategy drop
174 = (cmd.drop == CHM_NEWEST ? MC_DROP_NEWEST
175 : cmd.drop == CHM_OLDEST ? MC_DROP_OLDEST
176 : cmd.drop == CHM_RANDOM ? MC_DROP_RANDOM
178 mc_options_set_queue_limit_strategy (options, drop);
180 if (cmd.sbc_search > 0)
181 mc_options_set_seed (options, cmd.n_seed[0]);
182 if (cmd.max_unique_states != LONG_MIN)
183 mc_options_set_max_unique_states (options, cmd.max_unique_states);
184 if (cmd.max_errors != LONG_MIN)
185 mc_options_set_max_errors (options, cmd.max_errors);
186 if (cmd.time_limit != SYSMIS)
187 mc_options_set_time_limit (options, cmd.time_limit);
188 if (cmd.verbosity != LONG_MIN)
189 mc_options_set_verbosity (options, cmd.verbosity);
190 if (cmd.err_verbosity != LONG_MIN)
191 mc_options_set_failure_verbosity (options, cmd.err_verbosity);
192 if (cmd.progress != -1)
194 if (cmd.progress == CHM_NONE)
195 mc_options_set_progress_usec (options, 0);
196 else if (cmd.progress == CHM_DOTS)
198 /* Nothing to do: that's the default anyway. */
200 else if (cmd.progress == CHM_FANCY)
201 mc_options_set_progress_func (options, fancy_progress);
203 if (cmd.output_file != NULL)
205 FILE *output_file = fopen (cmd.output_file, "w");
206 if (output_file == NULL)
208 error (0, errno, _("error opening \"%s\" for writing"),
210 free_check_model (&cmd);
211 mc_options_destroy (options);
214 mc_options_set_output_file (options, output_file);
218 free_check_model (&cmd);
223 /* Prints a description of RESULTS to stream F. */
225 print_results (const struct mc_results *results, FILE *f)
227 enum mc_stop_reason reason = mc_results_get_stop_reason (results);
230 "MODEL CHECKING SUMMARY\n"
231 "----------------------\n\n", f);
233 fprintf (f, "Stopped by: %s\n",
234 reason == MC_SUCCESS ? "state space exhaustion"
235 : reason == MC_MAX_UNIQUE_STATES ? "reaching max unique states"
236 : reason == MC_MAX_ERROR_COUNT ? "reaching max error count"
237 : reason == MC_END_OF_PATH ? "reached end of specified path"
238 : reason == MC_TIMEOUT ? "reaching time limit"
239 : reason == MC_INTERRUPTED ? "user interruption"
241 fprintf (f, "Errors found: %d\n\n", mc_results_get_error_count (results));
243 fprintf (f, "Unique states checked: %d\n",
244 mc_results_get_unique_state_count (results));
245 fprintf (f, "Maximum depth reached: %d\n",
246 mc_results_get_max_depth_reached (results));
247 fprintf (f, "Mean depth reached: %.2f\n\n",
248 mc_results_get_mean_depth_reached (results));
250 fprintf (f, "Dropped duplicate states: %d\n",
251 mc_results_get_duplicate_dropped_states (results));
252 fprintf (f, "Dropped off-path states: %d\n",
253 mc_results_get_off_path_dropped_states (results));
254 fprintf (f, "Dropped too-deep states: %d\n",
255 mc_results_get_depth_dropped_states (results));
256 fprintf (f, "Dropped queue-overflow states: %d\n",
257 mc_results_get_queue_dropped_states (results));
258 fprintf (f, "Checked states still queued when stopped: %d\n",
259 mc_results_get_queued_unprocessed_states (results));
260 fprintf (f, "Maximum queue length reached: %d\n\n",
261 mc_results_get_max_queue_length (results));
263 fprintf (f, "Runtime: %.2f seconds\n",
264 mc_results_get_duration (results));