Trace number 1523833

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
NCVWr 2009-03-22SAT 0.297953 0.298729

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S1879859331-044.cnf
MD5SUM7a99883e1d20acc28491f28db1ea5f95
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.024995
Satisfiable
(Un)Satisfiability was proved
Number of variables560
Number of clauses2380
Sum of the clauses size7140
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32380
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.19/0.29	c try 1 flip j 178776
0.19/0.29	c A solution is found
0.19/0.29	s SATISFIABLE
0.19/0.29	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 -421 422 -423 -424 -425 426 -427 428 -429 -430 431 432 433 -434 435 -436 -437 438 -439 440 -441 -442 443 -444 -445 446 447 448 -449 450 -451 -452 -453 454 455 456 457 458 459 460 461 462 463 -464 465 -466 467 -468 -469 -470 471 472 473 474 -475 476 477 478 -479 480 -481 482 483 484 -485 -486 487 488 489 -490 -491 492 493 494 -495 496 497 498 499 -500 -501 -502 503 -504 -505 506 507 -508 -509 -510 511 512 513 -514 -515 -516 517 518 -519 -520 521 -522 -523 -524 525 -526 -527 528 529 530 -531 532 533 534 535 536 537 -538 539 -540 -541 -542 543 544 545 -546 547 548 -549 550 -551 552 553 -554 555 -556 -557 -558 559 -560 
0.19/0.29	v 0 
0.19/0.29	c Done (mycputime is 0.290 seconds)

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-1523833-1238576914/watcher-1523833-1238576914 -o /tmp/evaluation-result-1523833-1238576914/solver-1523833-1238576914 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1523833-1238576914.cnf 1321565498 

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: 1.99 1.89 1.61 3/64 30566
/proc/meminfo: memFree=1164712/2055920 swapFree=4178912/4192956
[pid=30566] ppid=30564 vsize=412012 CPUtime=0
/proc/30566/stat : 30566 (NCVWr) R 30564 30566 29761 0 -1 4194304 152 0 0 0 0 0 0 0 18 0 1 0 1130353960 421900288 136 1992294400 134512640 135113558 4294956208 18446744073709551615 134526387 0 0 4096 0 0 0 0 17 1 0 0
/proc/30566/statm: 103003 136 55 146 0 101878 0

[startup+0.03057 s]
/proc/loadavg: 1.99 1.89 1.61 3/64 30566
/proc/meminfo: memFree=1164712/2055920 swapFree=4178912/4192956
[pid=30566] ppid=30564 vsize=416044 CPUtime=0.02
/proc/30566/stat : 30566 (NCVWr) R 30564 30566 29761 0 -1 4194304 223 0 0 0 2 0 0 0 18 0 1 0 1130353960 426029056 207 1992294400 134512640 135113558 4294956208 18446744073709551615 134531124 0 0 4096 0 0 0 0 17 1 0 0
/proc/30566/statm: 104011 207 58 146 0 102886 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 416044

[startup+0.101577 s]
/proc/loadavg: 1.99 1.89 1.61 3/64 30566
/proc/meminfo: memFree=1164712/2055920 swapFree=4178912/4192956
[pid=30566] ppid=30564 vsize=416044 CPUtime=0.09
/proc/30566/stat : 30566 (NCVWr) R 30564 30566 29761 0 -1 4194304 223 0 0 0 9 0 0 0 18 0 1 0 1130353960 426029056 207 1992294400 134512640 135113558 4294956208 18446744073709551615 134531839 0 0 4096 0 0 0 0 17 1 0 0
/proc/30566/statm: 104011 207 58 146 0 102886 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 416044

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

[startup+0.201588 s]
/proc/loadavg: 1.99 1.89 1.61 3/64 30566
/proc/meminfo: memFree=1164712/2055920 swapFree=4178912/4192956
[pid=30566] ppid=30564 vsize=416044 CPUtime=0.19
/proc/30566/stat : 30566 (NCVWr) R 30564 30566 29761 0 -1 4194304 223 0 0 0 19 0 0 0 18 0 1 0 1130353960 426029056 207 1992294400 134512640 135113558 4294956208 18446744073709551615 134572353 0 0 4096 0 0 0 0 17 1 0 0
/proc/30566/statm: 104011 207 58 146 0 102886 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 416044

Child status: 10
Real time (s): 0.298729
CPU time (s): 0.297953
CPU user time (s): 0.296954
CPU system time (s): 0.000999
CPU usage (%): 99.7402
Max. virtual memory (cumulated for all children) (KiB): 416044

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.296954
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= 238
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= 0

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node47 at 2009-04-01 11:08:34
IDJOB=1523833
IDBENCH=70675
IDSOLVER=531
FILE ID=node47/1523833-1238576914
PBS_JOBID= 9062179
Free space on /tmp= 66368 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S1879859331-044.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523833-1238576914/watcher-1523833-1238576914 -o /tmp/evaluation-result-1523833-1238576914/solver-1523833-1238576914 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1523833-1238576914.cnf 1321565498

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

MD5SUM BENCH= 7a99883e1d20acc28491f28db1ea5f95
RANDOM SEED=1321565498

node47.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		: 3000.216
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		: 3000.216
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:       1165192 kB
Buffers:        109360 kB
Cached:         677360 kB
SwapCached:       7792 kB
Active:         280584 kB
Inactive:       516500 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1165192 kB
SwapTotal:     4192956 kB
SwapFree:      4178912 kB
Dirty:            4704 kB
Writeback:           0 kB
Mapped:          16084 kB
Slab:            79604 kB
Committed_AS:  3156064 kB
PageTables:       1452 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= 66364 MiB
End job on node47 at 2009-04-01 11:08:35