Trace number 1528977

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
gnovelty+ 2009-03-22SAT 0.230964 0.231902

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S1876865608-086.cnf
MD5SUMa08fcca560a80877927507a2ea133f40
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
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 

0.09/0.15	c +------------------------------+
0.09/0.15	c | gNovelty+, version 1.2       |
0.09/0.15	c +------------------------------+
0.09/0.15	c gnovelty+ -h for help
0.09/0.15	c 
0.09/0.15	finish initINstance()
0.09/0.15	c Problem instance: numAtoms = 560, numClauses = 2380, numLiterals = 7140
0.09/0.15	c General parameters: seed = 1908224423, timeout = 10 secs, targetCost = 0, print solution: no
0.09/0.15	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 0.40, noise = adaptive
0.09/0.15	c tries = 1
0.09/0.15	c 
0.19/0.21	     0    47104         0     47104     11156      0.06
0.19/0.21	s SATISFIABLE
0.19/0.21	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
0.19/0.22	c Done in 0.060000 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-1528977-1238578633/watcher-1528977-1238578633 -o /tmp/evaluation-result-1528977-1238578633/solver-1528977-1238578633 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1528977-1238578633.cnf 1908224423 

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: 0.91 0.97 0.99 2/64 7213
/proc/meminfo: memFree=862344/2055920 swapFree=4176868/4192956
[pid=7213] ppid=7211 vsize=957772 CPUtime=0
/proc/7213/stat : 7213 (gnovelty+) R 7211 7213 6642 0 -1 4194304 755 0 0 0 0 0 0 0 18 0 1 0 1130525638 980758528 739 1992294400 134512640 135098890 4294956208 18446744073709551615 134517913 0 0 4096 0 0 0 0 17 1 0 0
/proc/7213/statm: 239443 745 46 143 0 239298 0

[startup+0.052861 s]
/proc/loadavg: 0.91 0.97 0.99 2/64 7213
/proc/meminfo: memFree=862344/2055920 swapFree=4176868/4192956
[pid=7213] ppid=7211 vsize=957772 CPUtime=0.04
/proc/7213/stat : 7213 (gnovelty+) R 7211 7213 6642 0 -1 4194304 8268 0 0 0 1 3 0 0 18 0 1 0 1130525638 980758528 8253 1992294400 134512640 135098890 4294956208 18446744073709551615 134517913 0 0 4096 0 0 0 0 17 1 0 0
/proc/7213/statm: 239443 8259 46 143 0 239298 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 957772

[startup+0.101864 s]
/proc/loadavg: 0.91 0.97 0.99 2/64 7213
/proc/meminfo: memFree=862344/2055920 swapFree=4176868/4192956
[pid=7213] ppid=7211 vsize=958552 CPUtime=0.09
/proc/7213/stat : 7213 (gnovelty+) R 7211 7213 6642 0 -1 4194304 13731 0 0 0 3 6 0 0 18 0 1 0 1130525638 981557248 13715 1992294400 134512640 135098890 4294956208 18446744073709551615 134518761 0 0 4096 0 0 0 0 17 1 0 0
/proc/7213/statm: 239638 13719 48 143 0 239493 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 958552

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

[startup+0.201872 s]
/proc/loadavg: 0.91 0.97 0.99 2/64 7213
/proc/meminfo: memFree=862344/2055920 swapFree=4176868/4192956
[pid=7213] ppid=7211 vsize=958552 CPUtime=0.19
/proc/7213/stat : 7213 (gnovelty+) R 7211 7213 6642 0 -1 4194304 19680 0 0 0 10 9 0 0 19 0 1 0 1130525638 981557248 19663 1992294400 134512640 135098890 4294956208 18446744073709551615 134515048 0 0 4096 0 0 0 0 17 1 0 0
/proc/7213/statm: 239638 19663 65 143 0 239493 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 958552

Child status: 10
Real time (s): 0.231902
CPU time (s): 0.230964
CPU user time (s): 0.124981
CPU system time (s): 0.105983
CPU usage (%): 99.5955
Max. virtual memory (cumulated for all children) (KiB): 958552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.124981
system time used= 0.105983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19683
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= 1

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node48 at 2009-04-01 11:37:13
IDJOB=1528977
IDBENCH=70680
IDSOLVER=536
FILE ID=node48/1528977-1238578633
PBS_JOBID= 9062180
Free space on /tmp= 66464 MiB

SOLVER NAME= gnovelty+ 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S1876865608-086.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1528977-1238578633/watcher-1528977-1238578633 -o /tmp/evaluation-result-1528977-1238578633/solver-1528977-1238578633 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1528977-1238578633.cnf 1908224423

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

MD5SUM BENCH= a08fcca560a80877927507a2ea133f40
RANDOM SEED=1908224423

node48.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		: 3000.236
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		: 3000.236
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:        862832 kB
Buffers:        105920 kB
Cached:         983292 kB
SwapCached:      10280 kB
Active:         325836 kB
Inactive:       775288 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        862832 kB
SwapTotal:     4192956 kB
SwapFree:      4176868 kB
Dirty:             696 kB
Writeback:           0 kB
Mapped:          17536 kB
Slab:            77932 kB
Committed_AS:  2749092 kB
PageTables:       1376 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= 66464 MiB
End job on node48 at 2009-04-01 11:37:13