Trace number 310491

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
saps 2007-02-08SAT 0.056991 0.0588641

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S2099846342-04-SAT.cnf
MD5SUM23ea53255de4a3778ef34ac8baaa8ebc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.056991
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)

0.00/0.05	c 
0.00/0.05	c UBCSAT version 1.1.0rr
0.00/0.05	c 
0.00/0.05	c http://www.satlib.org/ubcsat
0.00/0.05	c 
0.00/0.05	c ubcsat -h for help
0.00/0.05	c 
0.00/0.05	c  -runs 1 
0.00/0.05	c  -cutoff 4294967295 
0.00/0.05	c  -timeout 0.000000 
0.00/0.05	c  -gtimeout 0.000000 
0.00/0.05	c  -noimprove 0 
0.00/0.05	c  -target 0 
0.00/0.05	c  -wtarget 0.000000 
0.00/0.05	c  -seed 617707522 
0.00/0.05	c  -solve 0 
0.00/0.05	c  -find,-numsol 0 
0.00/0.05	c  -findunique 0 
0.00/0.05	c  -srestart 0 
0.00/0.05	c  -prestart 0.000000 
0.00/0.05	c  -drestart 0 
0.00/0.05	c 
0.00/0.05	c  -alpha 1.300000 
0.00/0.05	c  -rho 0.800000 
0.00/0.05	c  -ps 0.050000 
0.00/0.05	c  -wp 0.010000 
0.00/0.05	c  -sapsthresh -0.100000 
0.00/0.05	c 
0.00/0.05	s SATISFIABLE
0.00/0.05	v  -1 -2 -3 4 5 6 7 -8 -9 10
0.00/0.05	v  -11 -12 -13 -14 15 -16 17 18 19 20
0.00/0.05	v  21 -22 23 -24 -25 26 -27 -28 29 -30
0.00/0.05	v  -31 -32 33 34 35 36 -37 38 39 40
0.00/0.05	v  41 42 43 44 45 -46 47 -48 -49 50
0.00/0.05	v  -51 52 53 -54 -55 -56 -57 58 59 60
0.00/0.05	v  -61 62 63 64 -65 -66 -67 -68 -69 70
0.00/0.05	v  -71 72 -73 74 75 76 -77 -78 79 -80
0.00/0.05	v  81 -82 83 -84 -85 -86 87 88 -89 -90
0.00/0.05	v  91 92 -93 -94 95 96 -97 98 -99 -100
0.00/0.05	v  101 -102 103 104 105 106 107 108 -109 -110
0.00/0.05	v  -111 -112 113 114 115 -116 117 -118 -119 -120
0.00/0.05	v  -121 122 123 -124 125 -126 -127 -128 129 130
0.00/0.05	v  -131 -132 133 -134 -135 -136 -137 138 -139 140
0.00/0.05	v  141 142 143 -144 -145 146 147 -148 149 -150
0.00/0.05	v  151 152 -153 -154 155 -156 157 158 159 -160
0.00/0.05	v  161 162 -163 -164 -165 -166 167 168 169 170
0.00/0.05	v  -171 -172 -173 174 175 176 -177 178 -179 180
0.00/0.05	v  181 182 -183 -184 185 -186 -187 -188 189 190
0.00/0.05	v  -191 -192 -193 194 195 196 -197 -198 199 -200
0.00/0.05	v  -201 -202 203 -204 205 206 207 208 209 -210
0.00/0.05	v  211 212 213 -214 215 -216 217 -218 219 220
0.00/0.05	v  221 222 -223 -224 -225 226 227 -228 -229 -230
0.00/0.05	v  -231 -232 233 234 235 -236 237 238 239 -240
0.00/0.05	v  241 -242 -243 244 245 246 -247 -248 249 -250
0.00/0.05	v  -251 252 -253 -254 255 256 -257 -258 -259 -260
0.00/0.05	v  -261 -262 263 264 -265 266 -267 -268 269 -270
0.00/0.05	v  -271 -272 -273 -274 275 -276 -277 -278 279 280
0.00/0.05	v  -281 -282 -283 284 285 286 -287 -288 -289 290
0.00/0.05	v  291 292 -293 294 -295 -296 -297 -298 299 -300
0.00/0.05	v  301 302 303 304 305 306 -307 -308 -309 -310
0.00/0.05	v  311 312 313 -314 315 316 -317 -318 319 320
0.00/0.05	v  321 -322 -323 324 325 -326 327 -328 -329 -330
0.00/0.05	v  -331 332 -333 -334 -335 -336 -337 338 -339 340
0.00/0.05	v  341 -342 -343 344 -345 346 -347 348 -349 -350
0.00/0.05	v  -351 352 -353 354 -355 356 -357 -358 -359 360
0.00/0.05	v  -361 -362 -363 364 365 366 367 -368 -369 -370
0.00/0.05	v  -371 -372 373 374 375 376 377 378 379 380
0.00/0.05	v  -381 -382 383 -384 385 386 387 -388 389 390
0.00/0.05	v  391 -392 -393 -394 395 -396 397 398 -399 400
0.00/0.05	v  -401 402 -403 404 405 406 407 408 409 410
0.00/0.05	v  411 412 -413 -414 -415 -416 417 -418 419 420
0.00/0.05	v  421 -422 -423 424 425 -426 -427 -428 -429 -430
0.00/0.05	v  -431 -432 -433 434 435 436 437 438 -439 440
0.00/0.05	v  441 442 443 -444 445 -446 -447 448 -449 450
0.00/0.05	v  451 -452 453 -454 -455 456 457 458 -459 -460
0.00/0.05	v  -461 462 463 464 -465 -466 467 -468 469 -470
0.00/0.05	v  -471 -472 -473 -474 475 -476 477 -478 -479 480
0.00/0.05	v  481 482 483 484 -485 -486 -487 488 489 490
0.00/0.05	v  491 492 -493 494 495 496 497 -498 499 500
0.00/0.05	v  -501 502 -503 504 505 506 507 508 -509 510
0.00/0.05	v  -511 -512 513 -514 -515 -516 517 -518 519 -520
0.00/0.05	v  521 -522 -523 524 525 526 -527 528 -529 -530
0.00/0.05	v  -531 532 533 534 535 -536 -537 -538 -539 540
0.00/0.05	v  541 542 -543 -544 545 546 -547 -548 549 -550
0.00/0.05	v  -551 -552 553 -554 555 556 557 -558 -559 -560
0.00/0.05	v  -561 562 -563 564 565 -566 -567 568 569 570
0.00/0.05	v  571 572 -573 574 -575 576 -577 578 579 -580
0.00/0.05	v  581 -582 -583 -584 -585 -586 587 588 -589 -590
0.00/0.05	v  -591 -592 593 -594 595 596 -597 598 599 -600
0.00/0.05	v  601 -602 -603 604 605 -606 -607 -608 -609 610
0.00/0.05	v  611 612 -613 614 615 -616 -617 -618 -619 -620
0.00/0.05	v  621 622 623 -624 -625 626 -627 -628 629 630
0.00/0.05	v  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/node65/watcher-310491-1172560096 -o ROOT/results/node65/solver-310491-1172560096 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310491-1172560096/saps /tmp/evaluation/310491-1172560096/instance-310491-1172560096.cnf 617707522 

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: 0.91 0.95 0.98 3/64 23768
/proc/meminfo: memFree=1829936/2055920 swapFree=4172316/4192956
[pid=23768] ppid=23766 vsize=5156 CPUtime=0
/proc/23768/stat : 23768 (saps) R 23766 23768 23197 0 -1 4194304 183 0 0 0 0 0 0 0 18 0 1 0 275967139 5279744 167 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134705725 0 0 4096 0 0 0 0 17 1 0 0
/proc/23768/statm: 1289 167 77 159 0 1128 0

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

Child status: 10
Real time (s): 0.0588641
CPU time (s): 0.056991
CPU user time (s): 0.056991
CPU system time (s): 0
CPU usage (%): 96.8179
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.056991
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 201
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= 8
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node65 on Tue Feb 27 07:08:16 UTC 2007

IDJOB= 310491
IDBENCH= 20289
IDSOLVER= 103
FILE ID= node65/310491-1172560096

PBS_JOBID= 3971881

Free space on /tmp= 66559 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S2099846342-04-SAT.cnf
COMMAND LINE= /tmp/evaluation/310491-1172560096/saps /tmp/evaluation/310491-1172560096/instance-310491-1172560096.cnf  617707522   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node65/watcher-310491-1172560096 -o ROOT/results/node65/solver-310491-1172560096 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310491-1172560096/saps /tmp/evaluation/310491-1172560096/instance-310491-1172560096.cnf  617707522   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  23ea53255de4a3778ef34ac8baaa8ebc

RANDOM SEED= 617707522

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node65.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		: 3000.259
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		: 3000.259
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:       1830344 kB
Buffers:         29596 kB
Cached:         136700 kB
SwapCached:      14924 kB
Active:          79988 kB
Inactive:       107928 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1830344 kB
SwapTotal:     4192956 kB
SwapFree:      4172316 kB
Dirty:            2260 kB
Writeback:           0 kB
Mapped:          15368 kB
Slab:            23672 kB
Committed_AS:   651420 kB
PageTables:       1456 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= 66559 MiB

End job on node65 on Tue Feb 27 07:08:16 UTC 2007