Trace number 310413

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 15.7626 15.7843

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S2094973797-12-SAT.cnf
MD5SUM834f68dca74e3c1d51bff5d400695c42
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
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)

15.66/15.78	c MXC attempting /tmp/evaluation/310413-1172559447/instance-310413-1172559447.cnf
15.66/15.78	c 0 assignments made, starting to guess now
15.66/15.78	c ===================================[MXC]=====================================
15.66/15.78	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
15.66/15.78	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
15.66/15.78	c =============================================================================
15.66/15.78	c |         0 |    2052     6156 |    1000       0       0     nan |  0.000 % |
15.66/15.78	c |       101 |    2052     6156 |    1100     101    1739    17.2 |  0.000 % |
15.66/15.78	c |       251 |    2052     6156 |    1210     251    4163    16.6 |  0.000 % |
15.66/15.78	c |       476 |    2052     6156 |    1331     476    7608    16.0 |  0.000 % |
15.66/15.78	c |       813 |    2052     6156 |    1464     813   13808    17.0 |  0.000 % |
15.66/15.78	c |      1320 |    2052     6156 |    1610    1320   22563    17.1 |  0.000 % |
15.66/15.78	c |      2080 |    2052     6156 |    1771    1275   20171    15.8 |  0.000 % |
15.66/15.78	c |      3219 |    2052     6156 |    1948    1528   25387    16.6 |  0.000 % |
15.66/15.78	c |      4928 |    2052     6156 |    2143    1288   20027    15.5 |  0.000 % |
15.66/15.78	c |      7490 |    2052     6156 |    2357    1708   31809    18.6 |  0.000 % |
15.66/15.78	c |     11334 |    2052     6156 |    2593    2015   33304    16.5 |  0.000 % |
15.66/15.78	c |     17101 |    2052     6156 |    2853    2594   44784    17.3 |  0.000 % |
15.66/15.78	c |     25750 |    2052     6156 |    3138    2690   48870    18.2 |  0.000 % |
15.66/15.78	c |     38724 |    2052     6156 |    3452    3112   50997    16.4 |  0.000 % |
15.66/15.78	c |     58185 |    2052     6156 |    3797    1863   28442    15.3 |  0.000 % |
15.66/15.78	c |     87377 |    2052     6156 |    4177    2590   42927    16.6 |  0.000 % |
15.66/15.78	c |    131166 |    2052     6156 |    4594    2578   46604    18.1 |  0.000 % |
15.66/15.78	c |    196850 |    2052     6156 |    5054    4007   71863    17.9 |  0.000 % |
15.66/15.78	c 15.760s elapsed
15.66/15.78	c restarts: 17
15.66/15.78	c decisions: 271030
15.66/15.78	c propagations: 21049568
15.66/15.78	c conflicts: 225674
15.66/15.78	s SATISFIABLE
15.66/15.78	v -328 -299 -376 -513 -98 -599 -39 288 -381 414 -42 -533 -416 -296 255 -530 478 -52 -445 -359 97 482 -484 -389 384 -483 628 -409 -486 172 -452 -9 -442 479 59 199 -235 195 -598 516 -586 -16 396 -36 -159 40 600 -250 -344 -368 -56 -57 -345 -73 372 124 104 -458 129 -196 -233 80 -543 -231 310 -382 68 -109 433 -426 -506 617 -380 402 331 -157 623 457 -315 613 -134 -571 546 -135 -85 -7 -186 -340 65 -229 -18 -360 603 -620 -548 499 -566 -564 76 370 -162 511 -305 -497 503 -629 167 377 576 -408 -430 392 319 163 141 -224 -474 -495 -132 -14 351 -357 202 -221 -48 214 346 -463 -627 375 618 -63 238 -547 -400 551 399 70 223 -191 -468 262 240 38 -456 -213 -160 337 362 -189 332 -256 -50 -561 -339 -10 269 136 579 535 -539 -532 -55 -306 272 142 404 -242 -575 341 62 245 -570 -175 -327 -215 93 -130 559 -88 286 447 -21 -353 289 -41 281 -347 297 568 -84 -412 363 217 -292 115 -314 309 -490 459 -562 -553 -588 243 -526 527 31 -523 -379 302 20 121 267 520 74 -72 -465 -316 485 415 -493 -103 139 393 79 481 179 -419 3 502 -334 -100 -567 514 -466 -614 451 87 268 531 187 -476 298 -211 -504 630 -609 32 174 -127 -108 563 200 17 358 -619 -387 587 -276 -225 -90 -153 -265 67 222 -24 -283 454 300 446 -275 573 -324 -578 114 -198 -348 -540 -279 413 538 -581 94 -418 467 -248 -220 -254 590 138 210 -158 -27 208 -367 411 -557 -338 -155 325 -336 378 608 -216 385 492 612 178 -44 -290 96 -148 119 -271 43 -118 448 -226 -525 -156 -311 -291 522 -330 -71 -491 510 602 140 246 -427 390 461 -145 -354 509 -5 270 278 -584 343 498 11 303 150 -308 -126 -371 -429 263 165 386 -444 537 -423 180 232 -116 -424 -30 313 -45 -234 -37 -173 228 -361 169 565 241 518 -556 574 112 -558 -473 -193 47 -428 460 -560 -280 398 284 83 -606 596 -607 164 -128 -480 -549 -54 244 -168 -75 125 615 60 287 25 237 -53 -589 383 1 -81 154 -304 312 230 -152 258 462 -395 -264 605 -274 -171 333 545 -405 113 455 -122 391 -580 -369 -421 -592 440 151 259 -207 -394 -373 434 431 541 -92 -35 -420 439 -182 -624 -49 -517 -183 -227 -239 352 46 -61 554 -34 -117 -293 -610 -66 -295 -29 594 -307 301 192 19 -26 123 69 349 146 -110 601 -449 161 -374 -542 -89 -77 273 -365 194 185 438 -436 -204 -320 -107 355 -95 13 489 -219 -329 -501 -22 -534 475 6 218 -477 -595 294 106 -99 -15 64 569 583 144 505 -403 593 285 -422 342 -469 -552 197 203 212 435 -257 -170 441 512 -190 318 -205 4 -188 -472 147 487 -322 -407 143 519 -621 -2 -356 28 -91 -591 470 260 -528 -604 -625 -507 572 -8 133 515 -388 -236 585 -350 -544 -611 -86 -321 -577 -536 -524 -410 -166 -282 -521 -397 -120 33 -494 101 -201 -111 -425 -12 -616 471 401 137 -500 -488 -432 -366 -253 -464 -82 -251 -261 -417 -622 -326 443 -529 -247 -406 -582 -177 -105 -437 -181 -184 -58 -209 -335 -323 -266 -496 -597 -206 -453 -626 -149 -550 -131 -317 -364 -252 508 -51 -555 -102 277 -78 -23 -249 -176 -450 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/node21/watcher-310413-1172559447 -o ROOT/results/node21/solver-310413-1172559447 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310413-1172559447/mxc /tmp/evaluation/310413-1172559447/instance-310413-1172559447.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: 1.00 1.00 1.00 3/77 17378
/proc/meminfo: memFree=1827600/2055920 swapFree=4145392/4192956
[pid=17378] ppid=17376 vsize=1064 CPUtime=0
/proc/17378/stat : 17378 (mxc) R 17376 17378 16981 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 275898656 1089536 119 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134535058 0 0 4096 0 0 0 0 17 1 0 0
/proc/17378/statm: 266 119 57 122 0 140 0

[startup+0.107444 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 17378
/proc/meminfo: memFree=1827600/2055920 swapFree=4145392/4192956
[pid=17378] ppid=17376 vsize=1204 CPUtime=0.1
/proc/17378/stat : 17378 (mxc) R 17376 17378 16981 0 -1 4194304 188 0 0 0 10 0 0 0 18 0 1 0 275898656 1232896 170 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134528512 0 0 4096 0 0 0 0 17 1 0 0
/proc/17378/statm: 301 170 67 122 0 175 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1204

[startup+0.515488 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 17378
/proc/meminfo: memFree=1827600/2055920 swapFree=4145392/4192956
[pid=17378] ppid=17376 vsize=1460 CPUtime=0.51
/proc/17378/stat : 17378 (mxc) R 17376 17378 16981 0 -1 4194304 228 0 0 0 51 0 0 0 21 0 1 0 275898656 1495040 210 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/17378/statm: 365 210 67 122 0 239 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1460

[startup+1.33658 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17379
/proc/meminfo: memFree=1826888/2055920 swapFree=4145392/4192956
[pid=17378] ppid=17376 vsize=1588 CPUtime=1.33
/proc/17378/stat : 17378 (mxc) R 17376 17378 16981 0 -1 4194304 262 0 0 0 133 0 0 0 25 0 1 0 275898656 1626112 244 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/17378/statm: 397 244 67 122 0 271 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1588

[startup+2.97776 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17379
/proc/meminfo: memFree=1826696/2055920 swapFree=4145392/4192956
[pid=17378] ppid=17376 vsize=1708 CPUtime=2.97
/proc/17378/stat : 17378 (mxc) R 17376 17378 16981 0 -1 4194304 294 0 0 0 297 0 0 0 25 0 1 0 275898656 1748992 276 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530040 0 0 4096 0 0 0 0 17 1 0 0
/proc/17378/statm: 427 276 67 122 0 301 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 1708

[startup+6.25412 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17379
/proc/meminfo: memFree=1826448/2055920 swapFree=4145392/4192956
[pid=17378] ppid=17376 vsize=1832 CPUtime=6.24
/proc/17378/stat : 17378 (mxc) R 17376 17378 16981 0 -1 4194304 347 0 0 0 624 0 0 0 25 0 1 0 275898656 1875968 329 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519967 0 0 4096 0 0 0 0 17 1 0 0
/proc/17378/statm: 458 329 67 122 0 332 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1832

[startup+12.7108 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17379
/proc/meminfo: memFree=1826064/2055920 swapFree=4145392/4192956
[pid=17378] ppid=17376 vsize=2076 CPUtime=12.7
/proc/17378/stat : 17378 (mxc) R 17376 17378 16981 0 -1 4194304 396 0 0 0 1270 0 0 0 25 0 1 0 275898656 2125824 378 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134529812 0 0 4096 0 0 0 0 17 1 0 0
/proc/17378/statm: 519 378 67 122 0 393 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 2076

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

[startup+13.1189 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17379
/proc/meminfo: memFree=1826064/2055920 swapFree=4145392/4192956
[pid=17378] ppid=17376 vsize=2076 CPUtime=13.11
/proc/17378/stat : 17378 (mxc) R 17376 17378 16981 0 -1 4194304 401 0 0 0 1311 0 0 0 25 0 1 0 275898656 2125824 383 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134529863 0 0 4096 0 0 0 0 17 1 0 0
/proc/17378/statm: 519 383 67 122 0 393 0
Current children cumulated CPU time (s) 13.11
Current children cumulated vsize (KiB) 2076

[startup+14.759 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17379
/proc/meminfo: memFree=1826000/2055920 swapFree=4145392/4192956
[pid=17378] ppid=17376 vsize=2076 CPUtime=14.74
/proc/17378/stat : 17378 (mxc) R 17376 17378 16981 0 -1 4194304 410 0 0 0 1474 0 0 0 25 0 1 0 275898656 2125824 392 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519635 0 0 4096 0 0 0 0 17 1 0 0
/proc/17378/statm: 519 392 67 122 0 393 0
Current children cumulated CPU time (s) 14.74
Current children cumulated vsize (KiB) 2076

[startup+15.5751 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17379
/proc/meminfo: memFree=1826000/2055920 swapFree=4145392/4192956
[pid=17378] ppid=17376 vsize=2192 CPUtime=15.56
/proc/17378/stat : 17378 (mxc) R 17376 17378 16981 0 -1 4194304 422 0 0 0 1556 0 0 0 25 0 1 0 275898656 2244608 404 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/17378/statm: 548 404 67 122 0 422 0
Current children cumulated CPU time (s) 15.56
Current children cumulated vsize (KiB) 2192

[startup+15.7792 s]
/proc/loadavg: 1.00 1.00 1.00 1/78 17379
/proc/meminfo: memFree=1825936/2055920 swapFree=4145392/4192956
[pid=17378] ppid=17376 vsize=0 CPUtime=15.75
/proc/17378/stat : 17378 (mxc) D 17376 17378 16981 0 -1 4194308 424 0 0 0 1575 0 0 0 24 0 1 0 275898656 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/17378/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 15.75
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 15.7843
CPU time (s): 15.7626
CPU user time (s): 15.7576
CPU system time (s): 0.004999
CPU usage (%): 99.8625
Max. virtual memory (cumulated for all children) (KiB): 2192

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.7576
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= 424
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= 10
involuntary context switches= 28

runsolver used 0.019996 second user time and 0.044993 second system time

The end

Launcher Data (download as text)

Begin job on node21 on Tue Feb 27 06:57:27 UTC 2007

IDJOB= 310413
IDBENCH= 20286
IDSOLVER= 107
FILE ID= node21/310413-1172559447

PBS_JOBID= 3971863

Free space on /tmp= 66562 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S2094973797-12-SAT.cnf
COMMAND LINE= /tmp/evaluation/310413-1172559447/mxc /tmp/evaluation/310413-1172559447/instance-310413-1172559447.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-310413-1172559447 -o ROOT/results/node21/solver-310413-1172559447 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310413-1172559447/mxc /tmp/evaluation/310413-1172559447/instance-310413-1172559447.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  834f68dca74e3c1d51bff5d400695c42

RANDOM SEED= 403076205

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node21.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		: 3000.245
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		: 3000.245
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:       1828072 kB
Buffers:         36236 kB
Cached:         121076 kB
SwapCached:      16496 kB
Active:         103540 kB
Inactive:        84948 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1828072 kB
SwapTotal:     4192956 kB
SwapFree:      4145392 kB
Dirty:             640 kB
Writeback:           0 kB
Mapped:          30256 kB
Slab:            25028 kB
Committed_AS:   755668 kB
PageTables:       1676 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= 66562 MiB

End job on node21 on Tue Feb 27 06:57:43 UTC 2007