Trace number 1543220

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 0.446931 0.294939

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S2106599808-035.cnf
MD5SUM23914e10b601e89075d5cbe23a039c20
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
Satisfiable
(Un)Satisfiability was proved
Number of variables460
Number of clauses1955
Sum of the clauses size5865
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31955
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 
0.27/0.28	s SATISFIABLE
0.27/0.28	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 0
0.27/0.28	c Done in 0.270000 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-1543220-1238596040/watcher-1543220-1238596040 -o /tmp/evaluation-result-1543220-1238596040/solver-1543220-1238596040 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1543220-1238596040.cnf 65840427 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: 1.99 1.85 1.45 3/64 21837
/proc/meminfo: memFree=1313016/2055920 swapFree=4175308/4192956
[pid=21837] ppid=21835 vsize=509152 CPUtime=0
/proc/21837/stat : 21837 (gnovelty+) R 21835 21837 21395 0 -1 4194304 1015 0 0 0 0 0 0 0 18 0 1 0 1132265858 521371648 1000 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/21837/statm: 127288 1007 102 285 0 127000 0

[startup+0.0493389 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 21837
/proc/meminfo: memFree=1313016/2055920 swapFree=4175308/4192956
[pid=21837] ppid=21835 vsize=516968 CPUtime=0.03
/proc/21837/stat : 21837 (gnovelty+) R 21835 21837 21395 0 -1 4194304 9905 0 0 0 0 3 0 0 18 0 1 0 1132265858 529375232 9890 1992294400 134512640 135680988 4294956192 18446744073709551615 134958286 0 0 4096 0 0 0 0 17 1 0 0
/proc/21837/statm: 129242 9890 102 285 0 128954 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 516968

[startup+0.102347 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 21837
/proc/meminfo: memFree=1313016/2055920 swapFree=4175308/4192956
[pid=21837] ppid=21835 vsize=516964 CPUtime=0.09
/proc/21837/stat : 21837 (gnovelty+) R 21835 21837 21395 0 -1 4194304 16166 0 0 0 3 6 0 0 18 0 1 0 1132265858 529371136 16150 1992294400 134512640 135680988 4294956192 18446744073709551615 134537708 0 0 4096 0 0 0 0 17 1 0 0
/proc/21837/statm: 129241 16155 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+0.202366 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 21837
/proc/meminfo: memFree=1313016/2055920 swapFree=4175308/4192956
[pid=21837] ppid=21835 vsize=529296 CPUtime=0.27
/proc/21837/stat : 21837 (gnovelty+) R 21835 21837 21395 0 -1 4194304 19739 0 0 0 18 9 0 0 16 0 2 0 1132265858 541999104 19723 1992294400 134512640 135680988 4294956192 18446744073709551615 134957681 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/21837/statm: 132324 19723 106 285 0 132036 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 529296

Child status: 10
Real time (s): 0.294939
CPU time (s): 0.446931
CPU user time (s): 0.32595
CPU system time (s): 0.120981
CPU usage (%): 151.533
Max. virtual memory (cumulated for all children) (KiB): 529296

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.32595
system time used= 0.120981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19753
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= 56
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node55 at 2009-04-01 16:27:20
IDJOB=1543220
IDBENCH=70733
IDSOLVER=550
FILE ID=node55/1543220-1238596040
PBS_JOBID= 9062241
Free space on /tmp= 66304 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S2106599808-035.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1543220-1238596040/watcher-1543220-1238596040 -o /tmp/evaluation-result-1543220-1238596040/solver-1543220-1238596040 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1543220-1238596040.cnf 65840427 2

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

MD5SUM BENCH= 23914e10b601e89075d5cbe23a039c20
RANDOM SEED=65840427

node55.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		: 3000.259
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		: 3000.259
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:       1313432 kB
Buffers:        103252 kB
Cached:         531804 kB
SwapCached:      11624 kB
Active:         207212 kB
Inactive:       442764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1313432 kB
SwapTotal:     4192956 kB
SwapFree:      4175308 kB
Dirty:            1452 kB
Writeback:           0 kB
Mapped:          18928 kB
Slab:            78540 kB
Committed_AS:  2903192 kB
PageTables:       1372 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= 66300 MiB
End job on node55 at 2009-04-01 16:27:20