Trace number 1518269

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
VARSAT-random 2009-03-22SAT 15.7336 15.739

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1362286908-061.cnf
MD5SUM647005b2285214f4136823936a28bcc9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
Satisfiable
(Un)Satisfiability was proved
Number of variables420
Number of clauses1785
Sum of the clauses size5355
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31785
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  420                                                  |
0.00/0.00	c |  Number of clauses:    1785                                                 |
0.00/0.00	c |  Parsing time:         0.00         s                                       |
0.00/0.00	c |  Timeout:              43200 s
0.00/0.00	c |  Random Seed:          1418010339.000000
0.00/0.00	c |  Heuristic:            EMSP-G, threshold 0.750                              |
0.00/0.00	c |  Branching Rule:       default (solution-guided)                            |
0.00/0.00	c |  Learned clauses in surveys?  Using NO learned clauses.                     |
0.00/0.00	c |                                                                             |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |     413     1772     5352 |      590        0    nan |  0.000 % |
0.00/0.01	c |       100 |     413     1772     5352 |      649      100     25 |  0.001 % |
0.00/0.02	c |       251 |     413     1772     5352 |      714      251     23 |  0.001 % |
0.00/0.04	c |       477 |     413     1772     5352 |      786      477     20 |  0.001 % |
0.00/0.06	c |       814 |     413     1772     5352 |      864      814     20 |  0.001 % |
0.00/0.08	c |      1322 |     413     1772     5352 |      951      864     19 |  0.001 % |
0.09/0.11	c |      2081 |     413     1772     5352 |     1046      616     18 |  0.001 % |
0.09/0.16	c |      3220 |     413     1772     5352 |     1151      661     18 |  0.001 % |
0.19/0.24	c |      4929 |     413     1772     5352 |     1266     1174     20 |  0.001 % |
0.29/0.35	c |      7491 |     413     1772     5352 |     1392     1099     21 |  0.001 % |
0.49/0.50	c |     11335 |     413     1772     5352 |     1532     1353     18 |  0.001 % |
0.69/0.75	c |     17101 |     413     1772     5352 |     1685      810     17 |  0.001 % |
1.10/1.15	c |     25751 |     413     1772     5352 |     1853     1694     21 |  0.001 % |
1.69/1.75	c |     38725 |     413     1772     5352 |     2039     1381     19 |  0.001 % |
2.59/2.66	c |     58187 |     413     1772     5352 |     2243     2070     19 |  0.001 % |
3.99/4.08	c |     87379 |     413     1772     5352 |     2467     1555     20 |  0.001 % |
6.29/6.31	c |    131169 |     413     1772     5352 |     2714     1337     19 |  0.001 % |
9.69/9.71	c |    196854 |     413     1772     5352 |     2985     2204     20 |  0.001 % |
14.89/14.98	c |    295380 |     413     1772     5352 |     3284     2268     20 |  0.001 % |
15.69/15.73	c ===============================================================================
15.69/15.73	c surveys--CPU time (sec)   : 0.1410         (0.90 % of total)
15.69/15.73	c surveys--attempted        : 57             (404 /sec)
15.69/15.73	c surveys--converged        : 57             (100.00 % successful)
15.69/15.73	c restarts              : 19
15.69/15.73	c conflicts             : 309585         (19861 /sec)
15.69/15.73	c decisions             : 372444         (1.79 % random) (23894 /sec)
15.69/15.73	c propagations          : 19590216       (1256780 /sec)
15.69/15.73	c conflict literals     : 7049247        (19.96 % deleted)
15.69/15.73	c Memory used           : 3.94 MB
15.69/15.73	c Total CPU time (sec)      : 15.7286     
15.69/15.73	c 
15.69/15.73	s SATISFIABLE
15.69/15.73	v 1 2 3 -4 -5 -6 -7 -8 -9 -10 11 -12 -13 14 -15 -16 17 18 -19 -20 21 22 23 24 25 -26 27 -28 29 -30 31 -32 33 -34 -35 -36 37 38 39 -40 -41 -42 43 44 -45 46 -47 48 -49 -50 51 52 -53 -54 55 -56 -57 58 -59 60 -61 -62 -63 -64 65 66 -67 68 -69 70 71 -72 -73 -74 75 -76 -77 78 -79 -80 -81 -82 -83 84 -85 -86 87 88 89 -90 -91 -92 93 94 95 96 97 -98 99 100 -101 -102 103 104 -105 106 -107 108 -109 -110 -111 112 -113 114 115 -116 117 118 119 -120 -121 -122 -123 124 -125 126 -127 -128 129 -130 131 132 133 -134 -135 -136 137 -138 -139 140 141 -142 143 144 -145 146 147 148 149 -150 151 152 -153 154 -155 -156 -157 158 -159 -160 161 -162 163 164 165 -166 167 -168 -169 170 171 172 -173 174 -175 -176 -177 -178 -179 -180 181 182 -183 -184 -185 186 187 -188 -189 -190 -191 192 -193 -194 -195 196 -197 -198 -199 -200 201 202 -203 -204 -205 -206 -207 208 -209 -210 -211 -212 213 214 215 216 -217 -218 -219 -220 221 -222 -223 -224 225 226 227 -228 229 -230 -231 232 233 -234 235 -236 -237 -238 -239 -240 -241 -242 -243 -244 -245 246 247 248 -249 -250 -251 252 -253 -254 -255 256 -257 -258 -259 260 261 -262 -263 -264 -265 -266 267 268 269 270 -271 272 -273 274 275 276 -277 -278 279 -280 -281 -282 -283 -284 -285 -286 -287 288 -289 -290 -291 -292 293 -294 295 296 -297 298 299 300 301 -302 -303 304 -305 306 -307 308 -309 310 -311 -312 313 314 315 -316 -317 -318 -319 -320 -321 -322 -323 -324 -325 -326 327 -328 -329 330 331 -332 333 -334 335 -336 337 338 339 -340 341 -342 -343 344 345 -346 347 348 -349 -350 -351 -352 353 -354 -355 -356 -357 -358 -359 360 361 -362 -363 -364 -365 -366 -367 -368 -369 -370 371 -372 -373 -374 375 -376 -377 378 379 -380 -381 -382 383 384 -385 -386 -387 -388 389 -390 -391 -392 -393 -394 395 -396 -397 -398 -399 400 401 -402 403 -404 -405 -406 407 408 409 -410 -411 412 413 414 415 -416 417 -418 419 420 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1518269-1238297610/watcher-1518269-1238297610 -o /tmp/evaluation-result-1518269-1238297610/solver-1518269-1238297610 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/varsat-random_static -seed=1418010339 HOME/instance-1518269-1238297610.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 7016
/proc/meminfo: memFree=998848/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=2416 CPUtime=0
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 224 0 0 0 0 0 0 0 18 0 1 0 1102426627 2473984 209 1992294400 4194304 5102416 548682068800 18446744073709551615 4282792 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 604 209 98 221 0 380 0

[startup+0.00903189 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 7016
/proc/meminfo: memFree=998848/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=2416 CPUtime=0
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 230 0 0 0 0 0 0 0 18 0 1 0 1102426627 2473984 215 1992294400 4194304 5102416 548682068800 18446744073709551615 4221892 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 604 215 102 221 0 380 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2416

[startup+0.101048 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 7016
/proc/meminfo: memFree=998848/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=2548 CPUtime=0.09
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 258 0 0 0 9 0 0 0 18 0 1 0 1102426627 2609152 243 1992294400 4194304 5102416 548682068800 18446744073709551615 4249957 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 637 243 113 221 0 413 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2548

[startup+0.301081 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 7016
/proc/meminfo: memFree=998848/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=2680 CPUtime=0.29
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 289 0 0 0 29 0 0 0 19 0 1 0 1102426627 2744320 274 1992294400 4194304 5102416 548682068800 18446744073709551615 4254942 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 670 274 113 221 0 446 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2680

[startup+0.701149 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 7016
/proc/meminfo: memFree=998848/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=2812 CPUtime=0.69
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 325 0 0 0 69 0 0 0 23 0 1 0 1102426627 2879488 310 1992294400 4194304 5102416 548682068800 18446744073709551615 4249610 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 703 310 113 221 0 479 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2812

[startup+1.50129 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7017
/proc/meminfo: memFree=997944/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=2944 CPUtime=1.49
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 371 0 0 0 149 0 0 0 25 0 1 0 1102426627 3014656 356 1992294400 4194304 5102416 548682068800 18446744073709551615 4254754 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 736 356 113 221 0 512 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2944

[startup+3.10156 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7017
/proc/meminfo: memFree=997624/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=3208 CPUtime=3.09
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 424 0 0 0 309 0 0 0 25 0 1 0 1102426627 3284992 409 1992294400 4194304 5102416 548682068800 18446744073709551615 4255731 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 802 409 113 221 0 578 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3208

[startup+6.30111 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7017
/proc/meminfo: memFree=997240/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=3496 CPUtime=6.29
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 486 0 0 0 629 0 0 0 25 0 1 0 1102426627 3579904 471 1992294400 4194304 5102416 548682068800 18446744073709551615 4255748 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 874 471 113 221 0 650 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3496

[startup+12.7012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7017
/proc/meminfo: memFree=996800/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=3760 CPUtime=12.69
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 579 0 0 0 1269 0 0 0 25 0 1 0 1102426627 3850240 564 1992294400 4194304 5102416 548682068800 18446744073709551615 4249652 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 940 564 113 221 0 716 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3760

Solver just ended. Dumping a history of the last processes samples

[startup+14.3055 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7017
/proc/meminfo: memFree=996672/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=3896 CPUtime=14.29
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 598 0 0 0 1429 0 0 0 25 0 1 0 1102426627 3989504 583 1992294400 4194304 5102416 548682068800 18446744073709551615 4249559 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 974 583 113 221 0 750 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 3896

[startup+15.1016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7017
/proc/meminfo: memFree=996672/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=3896 CPUtime=15.09
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 603 0 0 0 1509 0 0 0 25 0 1 0 1102426627 3989504 588 1992294400 4194304 5102416 548682068800 18446744073709551615 4249451 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 974 588 113 221 0 750 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 3896

[startup+15.5017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7017
/proc/meminfo: memFree=996608/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=3896 CPUtime=15.49
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 617 0 0 0 1549 0 0 0 25 0 1 0 1102426627 3989504 602 1992294400 4194304 5102416 548682068800 18446744073709551615 4230720 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 974 602 113 221 0 750 0
Current children cumulated CPU time (s) 15.49
Current children cumulated vsize (KiB) 3896

[startup+15.7017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7017
/proc/meminfo: memFree=996608/2055920 swapFree=4178700/4192956
[pid=7016] ppid=7014 vsize=4028 CPUtime=15.69
/proc/7016/stat : 7016 (varsat-random_s) R 7014 7016 1875 0 -1 4194304 618 0 0 0 1569 0 0 0 25 0 1 0 1102426627 4124672 603 1992294400 4194304 5102416 548682068800 18446744073709551615 4249508 0 0 4096 3 0 0 0 17 1 0 0
/proc/7016/statm: 1007 603 113 221 0 783 0
Current children cumulated CPU time (s) 15.69
Current children cumulated vsize (KiB) 4028

Child status: 10
Real time (s): 15.739
CPU time (s): 15.7336
CPU user time (s): 15.7286
CPU system time (s): 0.004999
CPU usage (%): 99.966
Max. virtual memory (cumulated for all children) (KiB): 4028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.7286
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 623
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 35

runsolver used 0.007998 second user time and 0.048992 second system time

The end

Launcher Data 

Begin job on node25 at 2009-03-29 05:33:30
IDJOB=1518269
IDBENCH=70665
IDSOLVER=539
FILE ID=node25/1518269-1238297610
PBS_JOBID= 9060995
Free space on /tmp= 66264 MiB

SOLVER NAME= VARSAT-random 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1362286908-061.cnf
COMMAND LINE= HOME/varsat-random_static -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518269-1238297610/watcher-1518269-1238297610 -o /tmp/evaluation-result-1518269-1238297610/solver-1518269-1238297610 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/varsat-random_static -seed=1418010339 HOME/instance-1518269-1238297610.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 647005b2285214f4136823936a28bcc9
RANDOM SEED=1418010339

node25.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.263
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.263
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        999328 kB
Buffers:        105464 kB
Cached:         848840 kB
SwapCached:       8032 kB
Active:         274612 kB
Inactive:       689268 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        999328 kB
SwapTotal:     4192956 kB
SwapFree:      4178700 kB
Dirty:            1040 kB
Writeback:           0 kB
Mapped:          14568 kB
Slab:            78708 kB
Committed_AS:  3108820 kB
PageTables:       1464 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66264 MiB
End job on node25 at 2009-03-29 05:33:46