Trace number 1542764

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+-T 2009-03-22SAT 0.288955 0.218814

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S1977519792-030.cnf
MD5SUMe6458c1749be20cdbcded67df8cce1cf
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.023996
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 

0.09/0.13	c +------------------------------+
0.09/0.13	c | gNovelty+, version 1.0       |
0.09/0.13	c +------------------------------+
0.09/0.13	c gnovelty+ -h for help
0.09/0.13	c 
0.26/0.20	s SATISFIABLE
0.26/0.20	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
0.26/0.20	c Done in 0.120000 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-1542764-1238572556/watcher-1542764-1238572556 -o /tmp/evaluation-result-1542764-1238572556/solver-1542764-1238572556 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1542764-1238572556.cnf 109273775 2 

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 1.00 1.09 3/72 19114
/proc/meminfo: memFree=1670880/2055920 swapFree=4174692/4192956
[pid=19114] ppid=19112 vsize=509152 CPUtime=0
/proc/19114/stat : 19114 (gnovelty+) R 19112 19114 18747 0 -1 4194304 1124 0 0 0 0 0 0 0 18 0 1 0 1129916691 521371648 1110 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/19114/statm: 127288 1117 102 285 0 127000 0

[startup+0.0764569 s]
/proc/loadavg: 1.00 1.00 1.09 3/72 19114
/proc/meminfo: memFree=1670880/2055920 swapFree=4174692/4192956
[pid=19114] ppid=19112 vsize=516964 CPUtime=0.07
/proc/19114/stat : 19114 (gnovelty+) R 19112 19114 18747 0 -1 4194304 12899 0 0 0 2 5 0 0 18 0 1 0 1129916691 529371136 12883 1992294400 134512640 135680988 4294956192 18446744073709551615 134537938 0 0 4096 0 0 0 0 17 1 0 0
/proc/19114/statm: 129241 12888 102 285 0 128953 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 516964

[startup+0.10246 s]
/proc/loadavg: 1.00 1.00 1.09 3/72 19114
/proc/meminfo: memFree=1670880/2055920 swapFree=4174692/4192956
[pid=19114] ppid=19112 vsize=516964 CPUtime=0.09
/proc/19114/stat : 19114 (gnovelty+) R 19112 19114 18747 0 -1 4194304 16044 0 0 0 3 6 0 0 18 0 1 0 1129916691 529371136 16029 1992294400 134512640 135680988 4294956192 18446744073709551615 134537842 0 0 4096 0 0 0 0 17 1 0 0
/proc/19114/statm: 129241 16033 102 285 0 128953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 516964

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

[startup+0.202489 s]
/proc/loadavg: 1.00 1.00 1.09 3/72 19114
/proc/meminfo: memFree=1670880/2055920 swapFree=4174692/4192956
[pid=19114] ppid=19112 vsize=529300 CPUtime=0.26
/proc/19114/stat : 19114 (gnovelty+) R 19112 19114 18747 0 -1 4194304 19748 0 0 0 16 10 0 0 16 0 2 0 1129916691 542003200 19732 1992294400 134512640 135680988 4294956192 18446744073709551615 134534551 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/19114/statm: 132325 19732 106 285 0 132037 0
Current children cumulated CPU time (s) 0.26
Current children cumulated vsize (KiB) 529300

Child status: 10
Real time (s): 0.218814
CPU time (s): 0.288955
CPU user time (s): 0.172973
CPU system time (s): 0.115982
CPU usage (%): 132.055
Max. virtual memory (cumulated for all children) (KiB): 529300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.172973
system time used= 0.115982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19764
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= 24
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node67 at 2009-04-01 09:55:56
IDJOB=1542764
IDBENCH=70657
IDSOLVER=550
FILE ID=node67/1542764-1238572556
PBS_JOBID= 9062170
Free space on /tmp= 66376 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S1977519792-030.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1542764-1238572556/watcher-1542764-1238572556 -o /tmp/evaluation-result-1542764-1238572556/solver-1542764-1238572556 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1542764-1238572556.cnf 109273775 2

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 2

MD5SUM BENCH= e6458c1749be20cdbcded67df8cce1cf
RANDOM SEED=109273775

node67.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		: 3000.265
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		: 3000.265
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:       1671360 kB
Buffers:         79136 kB
Cached:         215124 kB
SwapCached:       9632 kB
Active:         183744 kB
Inactive:       121572 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1671360 kB
SwapTotal:     4192956 kB
SwapFree:      4174692 kB
Dirty:            1496 kB
Writeback:           0 kB
Mapped:          16764 kB
Slab:            64316 kB
Committed_AS:  3230812 kB
PageTables:       2052 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= 66376 MiB
End job on node67 at 2009-04-01 09:55:56