Trace number 310409

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 0.118981 0.119698

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)

0.10/0.11	c 
0.10/0.11	c UBCSAT version 1.1.0rr
0.10/0.11	c 
0.10/0.11	c http://www.satlib.org/ubcsat
0.10/0.11	c 
0.10/0.11	c ubcsat -h for help
0.10/0.11	c 
0.10/0.11	c  -runs 1 
0.10/0.11	c  -cutoff 4294967295 
0.10/0.11	c  -timeout 0.000000 
0.10/0.11	c  -gtimeout 0.000000 
0.10/0.11	c  -noimprove 0 
0.10/0.11	c  -target 0 
0.10/0.11	c  -wtarget 0.000000 
0.10/0.11	c  -seed 316100180 
0.10/0.11	c  -solve 0 
0.10/0.11	c  -find,-numsol 0 
0.10/0.11	c  -findunique 0 
0.10/0.11	c  -srestart 0 
0.10/0.11	c  -prestart 0.000000 
0.10/0.11	c  -drestart 0 
0.10/0.11	c 
0.10/0.11	c  -alpha 1.300000 
0.10/0.11	c  -rho 0.800000 
0.10/0.11	c  -ps 0.050000 
0.10/0.11	c  -wp 0.010000 
0.10/0.11	c  -sapsthresh -0.100000 
0.10/0.11	c 
0.10/0.11	s SATISFIABLE
0.10/0.11	v  1 -2 3 4 -5 6 -7 8 -9 -10
0.10/0.11	v  -11 -12 13 -14 -15 16 17 -18 19 20
0.10/0.11	v  21 -22 -23 24 -25 -26 -27 28 -29 -30
0.10/0.11	v  31 32 33 -34 35 -36 -37 -38 -39 40
0.10/0.11	v  -41 42 -43 -44 -45 -46 -47 -48 49 -50
0.10/0.11	v  51 -52 -53 -54 -55 -56 57 58 -59 60
0.10/0.11	v  -61 -62 -63 -64 65 66 67 68 69 -70
0.10/0.11	v  -71 72 -73 -74 -75 76 77 78 79 -80
0.10/0.11	v  -81 -82 83 -84 85 -86 -87 88 -89 -90
0.10/0.11	v  -91 -92 93 94 -95 96 97 98 99 100
0.10/0.11	v  -101 102 -103 104 -105 -106 -107 -108 -109 -110
0.10/0.11	v  -111 -112 113 -114 115 -116 -117 -118 119 120
0.10/0.11	v  121 -122 -123 124 125 -126 -127 -128 129 -130
0.10/0.11	v  -131 132 133 -134 135 -136 137 138 -139 140
0.10/0.11	v  141 142 143 144 145 -146 -147 -148 149 -150
0.10/0.11	v  -151 -152 -153 154 -155 -156 -157 -158 159 -160
0.10/0.11	v  -161 -162 -163 164 -165 -166 -167 -168 169 170
0.10/0.11	v  171 172 -173 174 -175 176 177 178 179 180
0.10/0.11	v  -181 182 -183 -184 185 -186 187 -188 189 190
0.10/0.11	v  -191 -192 193 194 195 -196 197 198 -199 200
0.10/0.11	v  -201 202 -203 -204 -205 -206 -207 208 209 -210
0.10/0.11	v  -211 -212 -213 214 -215 -216 217 218 219 220
0.10/0.11	v  -221 222 -223 -224 225 -226 -227 228 -229 230
0.10/0.11	v  -231 232 -233 -234 235 -236 237 238 -239 240
0.10/0.11	v  241 -242 243 244 245 -246 247 -248 249 -250
0.10/0.11	v  -251 252 253 254 -255 256 -257 258 -259 260
0.10/0.11	v  261 262 263 -264 -265 -266 267 268 269 -270
0.10/0.11	v  -271 272 -273 -274 -275 -276 277 278 279 -280
0.10/0.11	v  281 282 283 284 285 -286 287 288 289 290
0.10/0.11	v  -291 -292 293 294 -295 -296 297 298 -299 300
0.10/0.11	v  -301 -302 -303 -304 -305 -306 307 308 309 310
0.10/0.11	v  -311 312 313 -314 -315 -316 -317 318 319 320
0.10/0.11	v  -321 -322 323 -324 -325 -326 -327 -328 -329 -330
0.10/0.11	v  331 332 333 334 335 -336 337 -338 339 340
0.10/0.11	v  341 -342 -343 344 -345 -346 -347 348 -349 -350
0.10/0.11	v  -351 352 -353 354 355 -356 357 358 -359 -360
0.10/0.11	v  -361 -362 363 364 -365 -366 -367 -368 -369 370
0.10/0.11	v  371 -372 373 -374 -375 376 377 378 -379 380
0.10/0.11	v  -381 -382 383 384 385 386 387 388 -389 390
0.10/0.11	v  391 -392 393 -394 -395 396 397 398 399 -400
0.10/0.11	v  401 402 403 404 405 406 407 -408 -409 -410
0.10/0.11	v  411 412 413 414 415 416 417 -418 -419 -420
0.10/0.11	v  421 422 -423 -424 -425 -426 -427 428 -429 -430
0.10/0.11	v  431 -432 433 434 435 -436 437 438 439 440
0.10/0.11	v  441 442 443 -444 -445 446 447 448 -449 450
0.10/0.11	v  451 -452 453 -454 455 -456 457 -458 459 460
0.10/0.11	v  461 -462 -463 -464 -465 466 467 -468 -469 470
0.10/0.11	v  471 -472 473 -474 -475 476 477 478 -479 -480
0.10/0.11	v  481 482 483 -484 485 -486 487 -488 -489 490
0.10/0.11	v  491 492 493 494 495 -496 497 498 499 -500
0.10/0.11	v  501 502 -503 -504 505 506 507 -508 -509 510
0.10/0.11	v  -511 512 -513 514 515 516 -517 518 519 520
0.10/0.11	v  -521 522 -523 -524 525 -526 527 -528 -529 530
0.10/0.11	v  531 532 533 -534 -535 536 -537 538 539 -540
0.10/0.11	v  541 -542 -543 -544 545 546 -547 -548 -549 -550
0.10/0.11	v  551 -552 -553 554 555 -556 -557 -558 559 -560
0.10/0.11	v  561 -562 563 -564 565 566 567 568 -569 -570
0.10/0.11	v  -571 572 573 -574 -575 -576 -577 -578 579 -580
0.10/0.11	v  581 -582 583 -584 585 -586 -587 -588 -589 590
0.10/0.11	v  -591 592 593 -594 595 596 -597 -598 -599 600
0.10/0.11	v  601 602 603 -604 605 -606 -607 608 -609 -610
0.10/0.11	v  611 -612 613 -614 615 -616 617 -618 -619 620
0.10/0.11	v  -621 622 623 -624 -625 626 -627 628 629 630
0.10/0.11	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/node12/watcher-310409-1172559435 -o ROOT/results/node12/solver-310409-1172559435 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310409-1172559435/saps /tmp/evaluation/310409-1172559435/instance-310409-1172559435.cnf 316100180 

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 1.08 1.74 3/77 21611
/proc/meminfo: memFree=1492904/2055920 swapFree=4154952/4192956
[pid=21611] ppid=21609 vsize=5156 CPUtime=0
/proc/21611/stat : 21611 (saps) R 21609 21611 21181 0 -1 4194304 183 0 0 0 0 0 0 0 18 0 1 0 275897918 5279744 167 18446744073709551615 134512640 135167564 4294956688 18446744073709551615 134705725 0 0 4096 0 0 0 0 17 1 0 0
/proc/21611/statm: 1289 167 77 159 0 1128 0

[startup+0.107315 s]
/proc/loadavg: 1.00 1.08 1.74 3/77 21611
/proc/meminfo: memFree=1492904/2055920 swapFree=4154952/4192956
[pid=21611] ppid=21609 vsize=5156 CPUtime=0.1
/proc/21611/stat : 21611 (saps) R 21609 21611 21181 0 -1 4194304 183 0 0 0 10 0 0 0 18 0 1 0 275897918 5279744 167 18446744073709551615 134512640 135167564 4294956688 18446744073709551615 134550734 0 0 4096 0 0 0 0 17 1 0 0
/proc/21611/statm: 1289 167 77 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

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

[startup+0.107315 s]
/proc/loadavg: 1.00 1.08 1.74 3/77 21611
/proc/meminfo: memFree=1492904/2055920 swapFree=4154952/4192956
[pid=21611] ppid=21609 vsize=5156 CPUtime=0.1
/proc/21611/stat : 21611 (saps) R 21609 21611 21181 0 -1 4194304 183 0 0 0 10 0 0 0 18 0 1 0 275897918 5279744 167 18446744073709551615 134512640 135167564 4294956688 18446744073709551615 134550734 0 0 4096 0 0 0 0 17 1 0 0
/proc/21611/statm: 1289 167 77 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.119698
CPU time (s): 0.118981
CPU user time (s): 0.117982
CPU system time (s): 0.000999
CPU usage (%): 99.401
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.117982
system time used= 0.000999
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= 2

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node12 on Tue Feb 27 06:57:15 UTC 2007

IDJOB= 310409
IDBENCH= 20286
IDSOLVER= 103
FILE ID= node12/310409-1172559435

PBS_JOBID= 3971667

Free space on /tmp= 66555 MiB

SOLVER NAME= saps 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/310409-1172559435/saps /tmp/evaluation/310409-1172559435/instance-310409-1172559435.cnf  316100180   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node12/watcher-310409-1172559435 -o ROOT/results/node12/solver-310409-1172559435 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310409-1172559435/saps /tmp/evaluation/310409-1172559435/instance-310409-1172559435.cnf  316100180   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  834f68dca74e3c1d51bff5d400695c42

RANDOM SEED= 316100180

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node12.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		: 3000.285
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		: 3000.285
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:       1493312 kB
Buffers:         61156 kB
Cached:         402232 kB
SwapCached:      18256 kB
Active:         263072 kB
Inactive:       226788 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1493312 kB
SwapTotal:     4192956 kB
SwapFree:      4154952 kB
Dirty:            2220 kB
Writeback:           0 kB
Mapped:          30196 kB
Slab:            58356 kB
Committed_AS:  1142836 kB
PageTables:       1692 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= 66555 MiB

End job on node12 on Tue Feb 27 06:57:15 UTC 2007