Trace number 1523841

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 2.54861 2.5491

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S565763763-051.cnf
MD5SUMc8ce7aa8b898c6cd15227b0e8c297c77
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 

2.49/2.54	c try 1 flip j 2193990
2.49/2.54	c A solution is found
2.49/2.54	s SATISFIABLE
2.49/2.54	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 
2.49/2.54	v 0 
2.49/2.54	c Done (mycputime is 2.540 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-1523841-1238577936/watcher-1523841-1238577936 -o /tmp/evaluation-result-1523841-1238577936/solver-1523841-1238577936 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1523841-1238577936.cnf 927397987 

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: 3.34 3.88 3.69 3/64 32248
/proc/meminfo: memFree=1029976/2055920 swapFree=4176444/4192956
[pid=32248] ppid=32246 vsize=451072 CPUtime=0
/proc/32248/stat : 32248 (Hybrid2) R 32246 32248 32211 0 -1 4194304 147 0 0 0 0 0 0 0 18 0 1 0 1130459019 461897728 131 1992294400 134512640 135106774 4294956224 18446744073709551615 134612774 0 0 4096 0 0 0 0 17 0 0 0
/proc/32248/statm: 112768 131 53 145 0 111644 0

[startup+0.086611 s]
/proc/loadavg: 3.34 3.88 3.69 3/64 32248
/proc/meminfo: memFree=1029976/2055920 swapFree=4176444/4192956
[pid=32248] ppid=32246 vsize=455104 CPUtime=0.08
/proc/32248/stat : 32248 (Hybrid2) R 32246 32248 32211 0 -1 4194304 204 0 0 0 8 0 0 0 18 0 1 0 1130459019 466026496 188 1992294400 134512640 135106774 4294956224 18446744073709551615 134528512 0 0 4096 0 0 0 0 17 0 0 0
/proc/32248/statm: 113776 188 56 145 0 112652 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 455104

[startup+0.101613 s]
/proc/loadavg: 3.34 3.88 3.69 3/64 32248
/proc/meminfo: memFree=1029976/2055920 swapFree=4176444/4192956
[pid=32248] ppid=32246 vsize=455104 CPUtime=0.1
/proc/32248/stat : 32248 (Hybrid2) R 32246 32248 32211 0 -1 4194304 204 0 0 0 10 0 0 0 18 0 1 0 1130459019 466026496 188 1992294400 134512640 135106774 4294956224 18446744073709551615 134566467 0 0 4096 0 0 0 0 17 0 0 0
/proc/32248/statm: 113776 188 56 145 0 112652 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 455104

[startup+0.301632 s]
/proc/loadavg: 3.34 3.88 3.69 3/64 32248
/proc/meminfo: memFree=1029976/2055920 swapFree=4176444/4192956
[pid=32248] ppid=32246 vsize=455104 CPUtime=0.3
/proc/32248/stat : 32248 (Hybrid2) R 32246 32248 32211 0 -1 4194304 204 0 0 0 30 0 0 0 19 0 1 0 1130459019 466026496 188 1992294400 134512640 135106774 4294956224 18446744073709551615 134528683 0 0 4096 0 0 0 0 17 0 0 0
/proc/32248/statm: 113776 188 56 145 0 112652 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 455104

[startup+0.701673 s]
/proc/loadavg: 3.34 3.88 3.69 3/64 32248
/proc/meminfo: memFree=1029976/2055920 swapFree=4176444/4192956
[pid=32248] ppid=32246 vsize=455104 CPUtime=0.7
/proc/32248/stat : 32248 (Hybrid2) R 32246 32248 32211 0 -1 4194304 204 0 0 0 70 0 0 0 23 0 1 0 1130459019 466026496 188 1992294400 134512640 135106774 4294956224 18446744073709551615 134527880 0 0 4096 0 0 0 0 17 0 0 0
/proc/32248/statm: 113776 188 56 145 0 112652 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 455104

[startup+1.50175 s]
/proc/loadavg: 3.34 3.88 3.69 2/65 32249
/proc/meminfo: memFree=1029264/2055920 swapFree=4176444/4192956
[pid=32248] ppid=32246 vsize=455104 CPUtime=1.5
/proc/32248/stat : 32248 (Hybrid2) R 32246 32248 32211 0 -1 4194304 204 0 0 0 150 0 0 0 25 0 1 0 1130459019 466026496 188 1992294400 134512640 135106774 4294956224 18446744073709551615 134527205 0 0 4096 0 0 0 0 17 0 0 0
/proc/32248/statm: 113776 188 56 145 0 112652 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 455104

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

[startup+2.30284 s]
/proc/loadavg: 3.16 3.83 3.67 3/65 32249
/proc/meminfo: memFree=1029136/2055920 swapFree=4176444/4192956
[pid=32248] ppid=32246 vsize=455104 CPUtime=2.3
/proc/32248/stat : 32248 (Hybrid2) R 32246 32248 32211 0 -1 4194304 204 0 0 0 230 0 0 0 25 0 1 0 1130459019 466026496 188 1992294400 134512640 135106774 4294956224 18446744073709551615 134528718 0 0 4096 0 0 0 0 17 0 0 0
/proc/32248/statm: 113776 188 56 145 0 112652 0
Current children cumulated CPU time (s) 2.3
Current children cumulated vsize (KiB) 455104

[startup+2.50286 s]
/proc/loadavg: 3.16 3.83 3.67 3/65 32249
/proc/meminfo: memFree=1029136/2055920 swapFree=4176444/4192956
[pid=32248] ppid=32246 vsize=455104 CPUtime=2.49
/proc/32248/stat : 32248 (Hybrid2) R 32246 32248 32211 0 -1 4194304 204 0 0 0 249 0 0 0 25 0 1 0 1130459019 466026496 188 1992294400 134512640 135106774 4294956224 18446744073709551615 134526810 0 0 4096 0 0 0 0 17 0 0 0
/proc/32248/statm: 113776 188 56 145 0 112652 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 455104

Child status: 10
Real time (s): 2.5491
CPU time (s): 2.54861
CPU user time (s): 2.54361
CPU system time (s): 0.004999
CPU usage (%): 99.9809
Max. virtual memory (cumulated for all children) (KiB): 455104

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.54361
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= 221
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= 8

runsolver used 0.005999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node27 at 2009-04-01 11:25:36
IDJOB=1523841
IDBENCH=70678
IDSOLVER=530
FILE ID=node27/1523841-1238577936
PBS_JOBID= 9062222
Free space on /tmp= 65720 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S565763763-051.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523841-1238577936/watcher-1523841-1238577936 -o /tmp/evaluation-result-1523841-1238577936/solver-1523841-1238577936 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1523841-1238577936.cnf 927397987

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

MD5SUM BENCH= c8ce7aa8b898c6cd15227b0e8c297c77
RANDOM SEED=927397987

node27.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		: 2800.196
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	: 5521.40
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		: 2800.196
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:       1030528 kB
Buffers:         94632 kB
Cached:         827000 kB
SwapCached:       9492 kB
Active:         200584 kB
Inactive:       732028 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1030528 kB
SwapTotal:     4192956 kB
SwapFree:      4176444 kB
Dirty:            4744 kB
Writeback:           0 kB
Mapped:          16704 kB
Slab:            78756 kB
Committed_AS:  2967380 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65716 MiB
End job on node27 at 2009-04-01 11:25:39