Trace number 1522282

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
iPAWS 2009-03-22SAT 0.037993 0.0388351

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S1429776379-099.cnf
MD5SUMea276ce6a9a917d7362e239e9cf3e2f4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
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 

0.00/0.03	s SATISFIABLE
0.00/0.03	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
0.00/0.03	c input file instance-1522282-1238577574.cnf, flips 22307

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-1522282-1238577574/watcher-1522282-1238577574 -o /tmp/evaluation-result-1522282-1238577574/solver-1522282-1238577574 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1522282-1238577574.cnf 1598357501 

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: 0.92 0.98 0.99 3/64 20349
/proc/meminfo: memFree=1598592/2055920 swapFree=4179168/4192956
[pid=20349] ppid=20347 vsize=335916 CPUtime=0
/proc/20349/stat : 20349 (iPAWS) R 20347 20349 20190 0 -1 4194304 485 0 0 0 0 0 0 0 18 0 1 0 1130419316 343977984 469 1992294400 134512640 135114423 4294956224 18446744073709551615 134615614 0 0 4096 0 0 0 0 17 1 0 0
/proc/20349/statm: 83979 470 54 146 0 83831 0

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

Child status: 0
Real time (s): 0.0388351
CPU time (s): 0.037993
CPU user time (s): 0.032994
CPU system time (s): 0.004999
CPU usage (%): 97.8316
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.032994
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= 944
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 0.005999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node61 at 2009-04-01 11:19:34
IDJOB=1522282
IDBENCH=70677
IDSOLVER=516
FILE ID=node61/1522282-1238577574
PBS_JOBID= 9062205
Free space on /tmp= 66344 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S1429776379-099.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1522282-1238577574/watcher-1522282-1238577574 -o /tmp/evaluation-result-1522282-1238577574/solver-1522282-1238577574 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1522282-1238577574.cnf 1598357501

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

MD5SUM BENCH= ea276ce6a9a917d7362e239e9cf3e2f4
RANDOM SEED=1598357501

node61.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		: 3000.238
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		: 3000.238
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:       1599008 kB
Buffers:         88532 kB
Cached:         274828 kB
SwapCached:       7920 kB
Active:         200480 kB
Inactive:       172496 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1599008 kB
SwapTotal:     4192956 kB
SwapFree:      4179168 kB
Dirty:             716 kB
Writeback:           0 kB
Mapped:          15384 kB
Slab:            70012 kB
Committed_AS:  2751756 kB
PageTables:       1372 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66344 MiB
End job on node61 at 2009-04-01 11:19:34