Trace number 1523943

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
Hybrid2 2009-03-22SAT 1.87871 1.8783

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S900737394-048.cnf
MD5SUMa3ba32614e3b11804668b06c2afeb296
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.018996
Satisfiable
(Un)Satisfiability was proved
Number of variables540
Number of clauses2295
Sum of the clauses size6885
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32295
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.79/1.87	c try 1 flip j 1586895
1.79/1.87	c A solution is found
1.79/1.87	s SATISFIABLE
1.79/1.87	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 
1.79/1.87	v 0 
1.79/1.87	c Done (mycputime is 1.870 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-1523943-1238588284/watcher-1523943-1238588284 -o /tmp/evaluation-result-1523943-1238588284/solver-1523943-1238588284 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1523943-1238588284.cnf 441063067 

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: 1.00 1.01 1.28 3/64 675
/proc/meminfo: memFree=1208088/2055920 swapFree=4176996/4192956
[pid=675] ppid=673 vsize=451072 CPUtime=0
/proc/675/stat : 675 (Hybrid2) R 673 675 570 0 -1 4194304 145 0 0 0 0 0 0 0 18 0 1 0 1131490475 461897728 129 1992294400 134512640 135106774 4294956224 18446744073709551615 134519711 0 0 4096 0 0 0 0 17 1 0 0
/proc/675/statm: 112768 129 53 145 0 111644 0

[startup+0.0453581 s]
/proc/loadavg: 1.00 1.01 1.28 3/64 675
/proc/meminfo: memFree=1208088/2055920 swapFree=4176996/4192956
[pid=675] ppid=673 vsize=454972 CPUtime=0.04
/proc/675/stat : 675 (Hybrid2) R 673 675 570 0 -1 4194304 202 0 0 0 4 0 0 0 18 0 1 0 1131490475 465891328 186 1992294400 134512640 135106774 4294956224 18446744073709551615 134526596 0 0 4096 0 0 0 0 17 1 0 0
/proc/675/statm: 113743 186 56 145 0 112619 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 454972

[startup+0.101362 s]
/proc/loadavg: 1.00 1.01 1.28 3/64 675
/proc/meminfo: memFree=1208088/2055920 swapFree=4176996/4192956
[pid=675] ppid=673 vsize=454972 CPUtime=0.09
/proc/675/stat : 675 (Hybrid2) R 673 675 570 0 -1 4194304 202 0 0 0 9 0 0 0 18 0 1 0 1131490475 465891328 186 1992294400 134512640 135106774 4294956224 18446744073709551615 134528496 0 0 4096 0 0 0 0 17 1 0 0
/proc/675/statm: 113743 186 56 145 0 112619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 454972

[startup+0.301379 s]
/proc/loadavg: 1.00 1.01 1.28 3/64 675
/proc/meminfo: memFree=1208088/2055920 swapFree=4176996/4192956
[pid=675] ppid=673 vsize=454972 CPUtime=0.29
/proc/675/stat : 675 (Hybrid2) R 673 675 570 0 -1 4194304 202 0 0 0 29 0 0 0 19 0 1 0 1131490475 465891328 186 1992294400 134512640 135106774 4294956224 18446744073709551615 134526846 0 0 4096 0 0 0 0 17 1 0 0
/proc/675/statm: 113743 186 56 145 0 112619 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 454972

[startup+0.701414 s]
/proc/loadavg: 1.00 1.01 1.28 3/64 675
/proc/meminfo: memFree=1208088/2055920 swapFree=4176996/4192956
[pid=675] ppid=673 vsize=454972 CPUtime=0.69
/proc/675/stat : 675 (Hybrid2) R 673 675 570 0 -1 4194304 202 0 0 0 69 0 0 0 22 0 1 0 1131490475 465891328 186 1992294400 134512640 135106774 4294956224 18446744073709551615 134566460 0 0 4096 0 0 0 0 17 1 0 0
/proc/675/statm: 113743 186 56 145 0 112619 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 454972

[startup+1.50148 s]
/proc/loadavg: 1.00 1.01 1.28 2/65 676
/proc/meminfo: memFree=1207376/2055920 swapFree=4176996/4192956
[pid=675] ppid=673 vsize=454972 CPUtime=1.49
/proc/675/stat : 675 (Hybrid2) R 673 675 570 0 -1 4194304 202 0 0 0 149 0 0 0 25 0 1 0 1131490475 465891328 186 1992294400 134512640 135106774 4294956224 18446744073709551615 134528683 0 0 4096 0 0 0 0 17 1 0 0
/proc/675/statm: 113743 186 56 145 0 112619 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 454972

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

[startup+1.7015 s]
/proc/loadavg: 1.00 1.01 1.28 2/65 676
/proc/meminfo: memFree=1207376/2055920 swapFree=4176996/4192956
[pid=675] ppid=673 vsize=454972 CPUtime=1.69
/proc/675/stat : 675 (Hybrid2) R 673 675 570 0 -1 4194304 202 0 0 0 169 0 0 0 25 0 1 0 1131490475 465891328 186 1992294400 134512640 135106774 4294956224 18446744073709551615 134527357 0 0 4096 0 0 0 0 17 1 0 0
/proc/675/statm: 113743 186 56 145 0 112619 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 454972

[startup+1.80151 s]
/proc/loadavg: 1.00 1.01 1.28 2/65 676
/proc/meminfo: memFree=1207376/2055920 swapFree=4176996/4192956
[pid=675] ppid=673 vsize=454972 CPUtime=1.79
/proc/675/stat : 675 (Hybrid2) R 673 675 570 0 -1 4194304 202 0 0 0 179 0 0 0 25 0 1 0 1131490475 465891328 186 1992294400 134512640 135106774 4294956224 18446744073709551615 134518096 0 0 4096 0 0 0 0 17 1 0 0
/proc/675/statm: 113743 186 56 145 0 112619 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 454972

Child status: 10
Real time (s): 1.8783
CPU time (s): 1.87871
CPU user time (s): 1.87671
CPU system time (s): 0.001999
CPU usage (%): 100.022
Max. virtual memory (cumulated for all children) (KiB): 454972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.87671
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 219
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= 4

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node50 at 2009-04-01 14:18:04
IDJOB=1523943
IDBENCH=70712
IDSOLVER=530
FILE ID=node50/1523943-1238588284
PBS_JOBID= 9068305
Free space on /tmp= 64220 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S900737394-048.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523943-1238588284/watcher-1523943-1238588284 -o /tmp/evaluation-result-1523943-1238588284/solver-1523943-1238588284 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1523943-1238588284.cnf 441063067

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

MD5SUM BENCH= a3ba32614e3b11804668b06c2afeb296
RANDOM SEED=441063067

node50.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:       1208504 kB
Buffers:        107164 kB
Cached:         632956 kB
SwapCached:       9920 kB
Active:         231484 kB
Inactive:       520264 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1208504 kB
SwapTotal:     4192956 kB
SwapFree:      4176996 kB
Dirty:            4612 kB
Writeback:           0 kB
Mapped:          17280 kB
Slab:            81592 kB
Committed_AS:  3215540 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= 64216 MiB
End job on node50 at 2009-04-01 14:18:06