Trace number 1523782

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 0.865867 0.866194

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S146188995-071.cnf
MD5SUM890aea0df389e5329db583f37e858c1b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015996
Satisfiable
(Un)Satisfiability was proved
Number of variables520
Number of clauses2210
Sum of the clauses size6630
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32210
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.80/0.86	c try 1 flip j 568378
0.80/0.86	c A solution is found
0.80/0.86	s SATISFIABLE
0.80/0.86	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 
0.80/0.86	v 0 
0.80/0.86	c Done (mycputime is 0.860 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-1523782-1238572726/watcher-1523782-1238572726 -o /tmp/evaluation-result-1523782-1238572726/solver-1523782-1238572726 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1523782-1238572726.cnf 1421895832 

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: 1.91 1.84 1.45 3/70 7913
/proc/meminfo: memFree=1663280/2055920 swapFree=4173176/4192956
[pid=7913] ppid=7911 vsize=412012 CPUtime=0
/proc/7913/stat : 7913 (NCVWr) R 7911 7913 7177 0 -1 4194304 149 0 0 0 0 0 0 0 18 0 1 0 1129935889 421900288 133 1992294400 134512640 135113558 4294956208 18446744073709551615 134526360 0 0 4096 0 0 0 0 17 1 0 0
/proc/7913/statm: 103003 133 55 146 0 101878 0

[startup+0.0447499 s]
/proc/loadavg: 1.91 1.84 1.45 3/70 7913
/proc/meminfo: memFree=1663280/2055920 swapFree=4173176/4192956
[pid=7913] ppid=7911 vsize=416048 CPUtime=0.04
/proc/7913/stat : 7913 (NCVWr) R 7911 7913 7177 0 -1 4194304 217 0 0 0 4 0 0 0 18 0 1 0 1129935889 426033152 201 1992294400 134512640 135113558 4294956208 18446744073709551615 134532650 0 0 4096 0 0 0 0 17 1 0 0
/proc/7913/statm: 104012 201 58 146 0 102887 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 416048

[startup+0.101755 s]
/proc/loadavg: 1.91 1.84 1.45 3/70 7913
/proc/meminfo: memFree=1663280/2055920 swapFree=4173176/4192956
[pid=7913] ppid=7911 vsize=416048 CPUtime=0.1
/proc/7913/stat : 7913 (NCVWr) R 7911 7913 7177 0 -1 4194304 217 0 0 0 10 0 0 0 18 0 1 0 1129935889 426033152 201 1992294400 134512640 135113558 4294956208 18446744073709551615 134531726 0 0 4096 0 0 0 0 17 1 0 0
/proc/7913/statm: 104012 201 58 146 0 102887 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 416048

[startup+0.301774 s]
/proc/loadavg: 1.91 1.84 1.45 3/70 7913
/proc/meminfo: memFree=1663280/2055920 swapFree=4173176/4192956
[pid=7913] ppid=7911 vsize=416048 CPUtime=0.3
/proc/7913/stat : 7913 (NCVWr) R 7911 7913 7177 0 -1 4194304 217 0 0 0 30 0 0 0 19 0 1 0 1129935889 426033152 201 1992294400 134512640 135113558 4294956208 18446744073709551615 134531839 0 0 4096 0 0 0 0 17 1 0 0
/proc/7913/statm: 104012 201 58 146 0 102887 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 416048

[startup+0.701814 s]
/proc/loadavg: 1.91 1.84 1.45 3/70 7913
/proc/meminfo: memFree=1663280/2055920 swapFree=4173176/4192956
[pid=7913] ppid=7911 vsize=416048 CPUtime=0.7
/proc/7913/stat : 7913 (NCVWr) R 7911 7913 7177 0 -1 4194304 217 0 0 0 70 0 0 0 22 0 1 0 1129935889 426033152 201 1992294400 134512640 135113558 4294956208 18446744073709551615 134573198 0 0 4096 0 0 0 0 17 1 0 0
/proc/7913/statm: 104012 201 58 146 0 102887 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 416048

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

[startup+0.801823 s]
/proc/loadavg: 1.91 1.84 1.45 3/70 7913
/proc/meminfo: memFree=1663280/2055920 swapFree=4173176/4192956
[pid=7913] ppid=7911 vsize=416048 CPUtime=0.8
/proc/7913/stat : 7913 (NCVWr) R 7911 7913 7177 0 -1 4194304 217 0 0 0 80 0 0 0 23 0 1 0 1129935889 426033152 201 1992294400 134512640 135113558 4294956208 18446744073709551615 134533476 0 0 4096 0 0 0 0 17 1 0 0
/proc/7913/statm: 104012 201 58 146 0 102887 0
Current children cumulated CPU time (s) 0.8
Current children cumulated vsize (KiB) 416048

Child status: 10
Real time (s): 0.866194
CPU time (s): 0.865867
CPU user time (s): 0.864868
CPU system time (s): 0.000999
CPU usage (%): 99.9622
Max. virtual memory (cumulated for all children) (KiB): 416048

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.864868
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= 232
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 0.000999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node36 at 2009-04-01 09:58:46
IDJOB=1523782
IDBENCH=70658
IDSOLVER=531
FILE ID=node36/1523782-1238572726
PBS_JOBID= 9062151
Free space on /tmp= 66412 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S146188995-071.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523782-1238572726/watcher-1523782-1238572726 -o /tmp/evaluation-result-1523782-1238572726/solver-1523782-1238572726 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1523782-1238572726.cnf 1421895832

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

MD5SUM BENCH= 890aea0df389e5329db583f37e858c1b
RANDOM SEED=1421895832

node36.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		: 3000.214
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		: 3000.214
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:       1663696 kB
Buffers:         79056 kB
Cached:         228472 kB
SwapCached:       9148 kB
Active:         192052 kB
Inactive:       126120 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1663696 kB
SwapTotal:     4192956 kB
SwapFree:      4173176 kB
Dirty:            4624 kB
Writeback:           0 kB
Mapped:          16348 kB
Slab:            59368 kB
Committed_AS:  3141520 kB
PageTables:       1876 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= 66408 MiB
End job on node36 at 2009-04-01 09:58:47