Trace number 310536

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, and are wall clock time (not CPU 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
MXC 2007-02-08SAT 28.4977 28.5203

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1244126495-18-SAT.cnf
MD5SUM7170ef62ab1f0b3de97654e24bebe902
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010998
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

28.46/28.51	c MXC attempting /tmp/evaluation/310536-1172560230/instance-310536-1172560230.cnf
28.46/28.51	c 0 assignments made, starting to guess now
28.46/28.51	c ===================================[MXC]=====================================
28.46/28.51	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
28.46/28.51	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
28.46/28.51	c =============================================================================
28.46/28.51	c |         0 |    2052     6156 |    1000       0       0     nan |  0.000 % |
28.46/28.51	c |       100 |    2052     6156 |    1100     100    1851    18.5 |  0.000 % |
28.46/28.51	c |       251 |    2052     6156 |    1210     251    4689    18.7 |  0.000 % |
28.46/28.51	c |       476 |    2052     6156 |    1331     474    8329    17.6 |  0.000 % |
28.46/28.51	c |       814 |    2052     6156 |    1464     810   14768    18.2 |  0.000 % |
28.46/28.51	c |      1320 |    2052     6156 |    1610    1316   23587    17.9 |  0.000 % |
28.46/28.51	c |      2081 |    2052     6156 |    1771    1270   22779    17.9 |  0.000 % |
28.46/28.51	c |      3220 |    2052     6156 |    1948    1521   27617    18.2 |  0.000 % |
28.46/28.51	c |      4928 |    2052     6156 |    2143    1278   21426    16.8 |  0.000 % |
28.46/28.51	c |      7490 |    2052     6156 |    2357    1696   32433    19.1 |  0.000 % |
28.46/28.51	c |     11337 |    2052     6156 |    2593    2006   39960    19.9 |  0.000 % |
28.46/28.51	c |     17105 |    2052     6156 |    2853    2586   46897    18.1 |  0.000 % |
28.46/28.51	c |     25755 |    2052     6156 |    3138    2678   54545    20.4 |  0.000 % |
28.46/28.51	c |     38729 |    2052     6156 |    3452    3102   63319    20.4 |  0.000 % |
28.46/28.51	c |     58190 |    2052     6156 |    3797    1860   33250    17.9 |  0.000 % |
28.46/28.51	c |     87386 |    2052     6156 |    4177    2640   52856    20.0 |  0.000 % |
28.46/28.51	c |    131175 |    2052     6156 |    4594    2604   52635    20.2 |  0.000 % |
28.46/28.51	c |    196859 |    2052     6156 |    5054    4007   79569    19.9 |  0.000 % |
28.46/28.51	c |    295388 |    2052     6156 |    5559    4171   80451    19.3 |  0.000 % |
28.46/28.51	c 28.490s elapsed
28.46/28.51	c restarts: 18
28.46/28.51	c decisions: 449347
28.46/28.51	c propagations: 35950192
28.46/28.51	c conflicts: 374843
28.46/28.51	s SATISFIABLE
28.46/28.51	v -135 -297 -580 -128 -5 -43 -526 235 -404 290 -89 -143 -127 -167 325 323 427 -27 144 521 -86 500 35 293 -571 -603 -525 162 -588 -322 -20 264 -346 -363 -68 -141 -270 -195 327 101 -520 145 67 -574 -454 -71 -62 84 600 -453 -9 234 229 -39 534 -37 490 511 326 -204 160 -294 88 166 -544 -87 -163 215 117 -181 148 613 -498 494 245 -435 -150 356 -458 124 -306 -523 372 -303 570 -348 -285 589 33 168 617 -469 -8 -199 624 388 -515 183 -191 -3 546 -415 396 -379 263 444 103 -479 -100 -22 -336 560 94 572 399 532 137 -246 50 385 -19 -438 -198 -186 171 310 620 78 -57 -622 -466 -44 -28 -598 -59 -553 -189 -66 -409 335 228 76 557 -90 -497 -576 625 -24 -614 -41 595 -610 244 -129 -81 225 -509 -516 -583 -628 443 334 -200 -253 197 482 -355 452 -467 556 207 -256 -527 -442 146 -341 -161 218 552 -495 426 -4 -214 608 390 -481 -13 368 169 239 107 -95 -539 -151 -607 -566 54 -360 -61 -386 518 -194 -278 465 259 -371 -296 618 464 182 -410 295 -351 596 430 349 110 52 -208 -449 -531 -408 7 12 -23 -315 537 -468 -489 -46 -260 112 524 403 -421 339 -302 -424 -102 -455 317 -601 445 -547 113 -106 561 -132 512 -508 241 99 47 -173 559 -155 -29 55 -362 298 -493 134 140 203 281 279 472 -174 393 -72 -609 -237 -626 -217 -605 -65 -324 -459 397 -32 233 -223 -250 -232 75 529 -492 -437 541 536 -460 -457 -252 6 -376 -280 220 -361 -316 -569 126 69 451 -179 -590 -227 -170 210 491 577 -159 230 378 -419 304 395 273 -70 -149 258 402 -555 383 353 562 507 -272 -45 401 314 255 -240 -14 -382 224 -122 -111 -98 -49 -267 175 321 -629 -131 -343 -616 -543 -56 -550 -60 287 286 -594 -105 -305 25 301 420 366 -83 -265 535 398 -425 -548 -299 292 -345 -116 108 -31 -308 597 381 176 -104 1 461 53 -367 599 63 564 -26 -196 -377 484 333 354 209 222 365 15 96 -212 -473 178 -540 138 16 -238 -604 450 -476 -329 190 414 -578 501 -470 623 -429 -405 -157 58 -565 -579 -156 -236 153 231 436 359 -201 -342 -309 -92 313 -462 474 -300 389 585 -318 -568 582 -36 40 499 188 439 -30 262 -221 496 406 538 621 -276 -478 352 505 -251 -284 475 619 242 206 80 133 136 -392 -488 -630 34 400 -180 -42 554 502 528 -77 -74 411 -413 -487 120 18 -587 -269 432 -2 216 -187 -85 -211 -64 -184 -563 513 -584 -357 441 288 164 121 38 275 -358 248 533 456 567 125 -486 -254 338 545 -375 82 440 434 -147 -591 592 530 -407 93 -320 -152 611 369 17 -97 575 -370 291 -627 -219 -551 -612 -10 -448 -416 -391 -123 -289 -311 -282 -205 -422 -350 185 593 581 -266 -387 -347 480 -51 114 -517 -328 -463 485 -504 -277 -433 -510 -249 431 283 -615 -243 340 -418 -337 364 -394 -312 -380 -519 -158 -319 -79 -558 -154 -268 330 573 -139 -202 -130 -477 -417 -11 -602 -542 257 -247 -177 -142 -423 -261 -446 -192 -119 -193 -91 -332 -73 -447 -506 -109 172 -344 -331 -115 -274 -48 -522 -503 -606 -483 -213 -549 -428 -373 -514 -21 -118 -307 -412 -374 -471 -271 -384 -165 -226 -586 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node24/watcher-310536-1172560230 -o ROOT/results/node24/solver-310536-1172560230 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310536-1172560230/mxc /tmp/evaluation/310536-1172560230/instance-310536-1172560230.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.92 0.98 0.99 3/77 25725
/proc/meminfo: memFree=1816264/2055920 swapFree=4139416/4192956
[pid=25725] ppid=25723 vsize=1064 CPUtime=0
/proc/25725/stat : 25725 (mxc) R 25723 25725 25155 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 275977268 1089536 119 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519191 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 266 119 57 122 0 140 0

[startup+0.10678 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 25725
/proc/meminfo: memFree=1816264/2055920 swapFree=4139416/4192956
[pid=25725] ppid=25723 vsize=1204 CPUtime=0.1
/proc/25725/stat : 25725 (mxc) R 25723 25725 25155 0 -1 4194304 190 0 0 0 10 0 0 0 18 0 1 0 275977268 1232896 172 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530135 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 301 172 67 122 0 175 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1204

[startup+0.514823 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 25725
/proc/meminfo: memFree=1816264/2055920 swapFree=4139416/4192956
[pid=25725] ppid=25723 vsize=1468 CPUtime=0.51
/proc/25725/stat : 25725 (mxc) R 25723 25725 25155 0 -1 4194304 235 0 0 0 51 0 0 0 21 0 1 0 275977268 1503232 217 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530169 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 367 217 67 122 0 241 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1468

[startup+1.33491 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 25726
/proc/meminfo: memFree=1815424/2055920 swapFree=4139416/4192956
[pid=25725] ppid=25723 vsize=1600 CPUtime=1.33
/proc/25725/stat : 25725 (mxc) R 25723 25725 25155 0 -1 4194304 269 0 0 0 133 0 0 0 25 0 1 0 275977268 1638400 251 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519297 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 400 251 67 122 0 274 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1600

[startup+2.97109 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 25726
/proc/meminfo: memFree=1815168/2055920 swapFree=4139416/4192956
[pid=25725] ppid=25723 vsize=1728 CPUtime=2.96
/proc/25725/stat : 25725 (mxc) R 25723 25725 25155 0 -1 4194304 322 0 0 0 296 0 0 0 25 0 1 0 275977268 1769472 304 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519266 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 432 304 67 122 0 306 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 1728

[startup+6.24745 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 25726
/proc/meminfo: memFree=1814912/2055920 swapFree=4139416/4192956
[pid=25725] ppid=25723 vsize=1968 CPUtime=6.24
/proc/25725/stat : 25725 (mxc) R 25723 25725 25155 0 -1 4194304 363 0 0 0 624 0 0 0 25 0 1 0 275977268 2015232 345 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519676 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 492 345 67 122 0 366 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1968

[startup+12.7031 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 25726
/proc/meminfo: memFree=1814664/2055920 swapFree=4139416/4192956
[pid=25725] ppid=25723 vsize=2100 CPUtime=12.69
/proc/25725/stat : 25725 (mxc) R 25723 25725 25155 0 -1 4194304 406 0 0 0 1269 0 0 0 25 0 1 0 275977268 2150400 388 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519268 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 525 388 67 122 0 399 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2100

[startup+25.5085 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 25726
/proc/meminfo: memFree=1814288/2055920 swapFree=4139416/4192956
[pid=25725] ppid=25723 vsize=2472 CPUtime=25.49
/proc/25725/stat : 25725 (mxc) R 25723 25725 25155 0 -1 4194304 490 0 0 0 2549 0 0 0 25 0 1 0 275977268 2531328 472 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530219 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 618 472 67 122 0 492 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 2472

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

[startup+26.2266 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 25726
/proc/meminfo: memFree=1814288/2055920 swapFree=4139416/4192956
[pid=25725] ppid=25723 vsize=2472 CPUtime=26.21
/proc/25725/stat : 25725 (mxc) R 25723 25725 25155 0 -1 4194304 490 0 0 0 2621 0 0 0 25 0 1 0 275977268 2531328 472 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 618 472 67 122 0 492 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 2472

[startup+27.8628 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 25726
/proc/meminfo: memFree=1814288/2055920 swapFree=4139416/4192956
[pid=25725] ppid=25723 vsize=2472 CPUtime=27.84
/proc/25725/stat : 25725 (mxc) R 25723 25725 25155 0 -1 4194304 493 0 0 0 2784 0 0 0 25 0 1 0 275977268 2531328 475 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530184 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 618 475 67 122 0 492 0
Current children cumulated CPU time (s) 27.84
Current children cumulated vsize (KiB) 2472

[startup+28.2748 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 25726
/proc/meminfo: memFree=1814288/2055920 swapFree=4139416/4192956
[pid=25725] ppid=25723 vsize=2472 CPUtime=28.26
/proc/25725/stat : 25725 (mxc) R 25723 25725 25155 0 -1 4194304 496 0 0 0 2826 0 0 0 25 0 1 0 275977268 2531328 478 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 618 478 67 122 0 492 0
Current children cumulated CPU time (s) 28.26
Current children cumulated vsize (KiB) 2472

[startup+28.4789 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 25726
/proc/meminfo: memFree=1814288/2055920 swapFree=4139416/4192956
[pid=25725] ppid=25723 vsize=2472 CPUtime=28.46
/proc/25725/stat : 25725 (mxc) R 25723 25725 25155 0 -1 4194304 496 0 0 0 2846 0 0 0 25 0 1 0 275977268 2531328 478 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519587 0 0 4096 0 0 0 0 17 1 0 0
/proc/25725/statm: 618 478 67 122 0 492 0
Current children cumulated CPU time (s) 28.46
Current children cumulated vsize (KiB) 2472

Child status: 10
Real time (s): 28.5203
CPU time (s): 28.4977
CPU user time (s): 28.4927
CPU system time (s): 0.004999
CPU usage (%): 99.9205
Max. virtual memory (cumulated for all children) (KiB): 2492

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 28.4927
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= 498
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= 9
involuntary context switches= 66

runsolver used 0.030995 second user time and 0.06099 second system time

The end

Launcher Data (download as text)

Begin job on node24 on Tue Feb 27 07:10:30 UTC 2007

IDJOB= 310536
IDBENCH= 20290
IDSOLVER= 107
FILE ID= node24/310536-1172560230

PBS_JOBID= 3971873

Free space on /tmp= 66561 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1244126495-18-SAT.cnf
COMMAND LINE= /tmp/evaluation/310536-1172560230/mxc /tmp/evaluation/310536-1172560230/instance-310536-1172560230.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-310536-1172560230 -o ROOT/results/node24/solver-310536-1172560230 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310536-1172560230/mxc /tmp/evaluation/310536-1172560230/instance-310536-1172560230.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  7170ef62ab1f0b3de97654e24bebe902

RANDOM SEED= 722964397

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.232
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		: 3000.232
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:       1816608 kB
Buffers:         28824 kB
Cached:         156868 kB
SwapCached:       8788 kB
Active:          84620 kB
Inactive:       115744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1816608 kB
SwapTotal:     4192956 kB
SwapFree:      4139416 kB
Dirty:             784 kB
Writeback:           0 kB
Mapped:          15564 kB
Slab:            24472 kB
Committed_AS:   778636 kB
PageTables:       1732 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= 66561 MiB

End job on node24 on Tue Feb 27 07:10:58 UTC 2007