Trace number 1542686

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 0.645901 0.394959

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S1494961823-060.cnf
MD5SUM7495f98ae37985dd5ad2be6175c3d801
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.023995
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2125
Sum of the clauses size6375
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32125
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.12	c +------------------------------+
0.09/0.12	c | gNovelty+, version 1.0       |
0.09/0.12	c +------------------------------+
0.09/0.12	c gnovelty+ -h for help
0.09/0.12	c 
0.46/0.38	s SATISFIABLE
0.46/0.38	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 0
0.46/0.38	c Done in 0.440000 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-1542686-1238569208/watcher-1542686-1238569208 -o /tmp/evaluation-result-1542686-1238569208/solver-1542686-1238569208 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1542686-1238569208.cnf 1788281693 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 0.95 3/65 3297
/proc/meminfo: memFree=1209120/2055920 swapFree=4176856/4192956
[pid=3297] ppid=3295 vsize=509152 CPUtime=0
/proc/3297/stat : 3297 (gnovelty+) R 3295 3297 3073 0 -1 4194304 1072 0 0 0 0 0 0 0 20 0 1 0 1016294564 521371648 1057 1992294400 134512640 135680988 4294956208 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/3297/statm: 127288 1065 102 285 0 127000 0

[startup+0.0670091 s]
/proc/loadavg: 1.00 1.00 0.95 3/65 3297
/proc/meminfo: memFree=1209120/2055920 swapFree=4176856/4192956
[pid=3297] ppid=3295 vsize=516964 CPUtime=0.05
/proc/3297/stat : 3297 (gnovelty+) R 3295 3297 3073 0 -1 4194304 12041 0 0 0 1 4 0 0 20 0 1 0 1016294564 529371136 12025 1992294400 134512640 135680988 4294956208 18446744073709551615 134537708 0 0 4096 0 0 0 0 17 1 0 0
/proc/3297/statm: 129241 12030 102 285 0 128953 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 516964

[startup+0.101012 s]
/proc/loadavg: 1.00 1.00 0.95 3/65 3297
/proc/meminfo: memFree=1209120/2055920 swapFree=4176856/4192956
[pid=3297] ppid=3295 vsize=516964 CPUtime=0.09
/proc/3297/stat : 3297 (gnovelty+) R 3295 3297 3073 0 -1 4194304 16307 0 0 0 3 6 0 0 20 0 1 0 1016294564 529371136 16291 1992294400 134512640 135680988 4294956208 18446744073709551615 134537708 0 0 4096 0 0 0 0 17 1 0 0
/proc/3297/statm: 129241 16296 102 285 0 128953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 516964

[startup+0.301029 s]
/proc/loadavg: 1.00 1.00 0.95 3/65 3297
/proc/meminfo: memFree=1209120/2055920 swapFree=4176856/4192956
[pid=3297] ppid=3295 vsize=529296 CPUtime=0.46
/proc/3297/stat : 3297 (gnovelty+) R 3295 3297 3073 0 -1 4194304 19745 0 0 0 35 11 0 0 16 0 2 0 1016294564 541999104 19729 1992294400 134512640 135680988 4294956208 18446744073709551615 134957681 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/3297/statm: 132324 19729 106 285 0 132036 0
Current children cumulated CPU time (s) 0.46
Current children cumulated vsize (KiB) 529296

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

Child status: 10
Real time (s): 0.394959
CPU time (s): 0.645901
CPU user time (s): 0.490925
CPU system time (s): 0.154976
CPU usage (%): 163.536
Max. virtual memory (cumulated for all children) (KiB): 529296

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.490925
system time used= 0.154976
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19760
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= 89
involuntary context switches= 5

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node8 at 2009-04-01 09:00:08
IDJOB=1542686
IDBENCH=70644
IDSOLVER=550
FILE ID=node8/1542686-1238569208
PBS_JOBID= 9070518
Free space on /tmp= 64248 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S1494961823-060.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1542686-1238569208/watcher-1542686-1238569208 -o /tmp/evaluation-result-1542686-1238569208/solver-1542686-1238569208 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1542686-1238569208.cnf 1788281693 2

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

MD5SUM BENCH= 7495f98ae37985dd5ad2be6175c3d801
RANDOM SEED=1788281693

node8.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		: 3000.232
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		: 3000.232
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1209536 kB
Buffers:        106656 kB
Cached:         633432 kB
SwapCached:       9204 kB
Active:         179684 kB
Inactive:       571076 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1209536 kB
SwapTotal:     4192956 kB
SwapFree:      4176856 kB
Dirty:            1436 kB
Writeback:           0 kB
Mapped:          16332 kB
Slab:            81396 kB
Committed_AS:  2707588 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 64248 MiB
End job on node8 at 2009-04-01 09:00:09