Trace number 1783377

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 0.176972 0.175618

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S602463346-055.cnf
MD5SUMf50ad9abb19635b49e2de66215f8fa56
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
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 

0.09/0.13	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 
0.09/0.16	s SATISFIABLE
0.09/0.16	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
0.09/0.16	c Done in 0.030000 seconds

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1783377-1241731647/watcher-1783377-1241731647 -o /tmp/evaluation-result-1783377-1241731647/solver-1783377-1241731647 -C 5000 -W 6000 -M 1800 HOME/gnovelty+ HOME/instance-1783377-1241731647.cnf 543438210 0 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.85 0.97 0.95 3/64 25900
/proc/meminfo: memFree=1981968/2055920 swapFree=4175064/4192956
[pid=25900] ppid=25898 vsize=509152 CPUtime=0
/proc/25900/stat : 25900 (gnovelty+) R 25898 25900 25863 0 -1 4194304 1025 0 0 0 0 0 0 0 18 0 1 0 201191858 521371648 1010 1992294400 134512640 135680988 4294956208 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/25900/statm: 127288 1017 102 285 0 127000 0

[startup+0.075198 s]
/proc/loadavg: 0.85 0.97 0.95 3/64 25900
/proc/meminfo: memFree=1981968/2055920 swapFree=4175064/4192956
[pid=25900] ppid=25898 vsize=516964 CPUtime=0.06
/proc/25900/stat : 25900 (gnovelty+) R 25898 25900 25863 0 -1 4194304 12834 0 0 0 1 5 0 0 18 0 1 0 201191858 529371136 12818 1992294400 134512640 135680988 4294956208 18446744073709551615 134537842 0 0 4096 0 0 0 0 17 1 0 0
/proc/25900/statm: 129241 12823 102 285 0 128953 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 516964

[startup+0.101199 s]
/proc/loadavg: 0.85 0.97 0.95 3/64 25900
/proc/meminfo: memFree=1981968/2055920 swapFree=4175064/4192956
[pid=25900] ppid=25898 vsize=516964 CPUtime=0.09
/proc/25900/stat : 25900 (gnovelty+) R 25898 25900 25863 0 -1 4194304 16038 0 0 0 2 7 0 0 18 0 1 0 201191858 529371136 16022 1992294400 134512640 135680988 4294956208 18446744073709551615 134537905 0 0 4096 0 0 0 0 17 1 0 0
/proc/25900/statm: 129241 16027 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

Child status: 10
Real time (s): 0.175618
CPU time (s): 0.176972
CPU user time (s): 0.066989
CPU system time (s): 0.109983
CPU usage (%): 100.771
Max. virtual memory (cumulated for all children) (KiB): 516964

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.066989
system time used= 0.109983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19736
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= 0

runsolver used 0.004999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node61 at 2009-05-07 23:27:27
IDJOB=1783377
IDBENCH=70649
IDSOLVER=636
FILE ID=node61/1783377-1241731647
PBS_JOBID= 9264437
Free space on /tmp= 66280 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S602463346-055.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1783377-1241731647/watcher-1783377-1241731647 -o /tmp/evaluation-result-1783377-1241731647/solver-1783377-1241731647 -C 5000 -W 6000 -M 1800  HOME/gnovelty+ HOME/instance-1783377-1241731647.cnf 543438210 0

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= f50ad9abb19635b49e2de66215f8fa56
RANDOM SEED=543438210

node61.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		: 3000.216
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		: 3000.216
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:       1982448 kB
Buffers:          9028 kB
Cached:          19788 kB
SwapCached:      11984 kB
Active:          16224 kB
Inactive:        26792 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1982448 kB
SwapTotal:     4192956 kB
SwapFree:      4175064 kB
Dirty:            1636 kB
Writeback:           0 kB
Mapped:          13240 kB
Slab:            16596 kB
Committed_AS:   758628 kB
PageTables:       1368 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66276 MiB
End job on node61 at 2009-05-07 23:27:28