Trace number 1529105

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+2 2009-03-22SAT 0.083986 0.0848509

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S1924575376-025.cnf
MD5SUM6fb0ba561e085817334f61be44abbbd8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.035993
Satisfiable
(Un)Satisfiability was proved
Number of variables480
Number of clauses2040
Sum of the clauses size6120
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32040
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c +------------------------------+
0.00/0.00	c | gNovelty+, version 2.0       |
0.00/0.00	c +------------------------------+
0.00/0.00	c gnovelty+ -h for help
0.00/0.00	c 
0.00/0.00	c Problem instance: numAtoms = 480, numClauses = 2040
0.00/0.00	c General parameters: seed = 708580072, timeout = 10 secs, targetCost = 0, print solution: no
0.00/0.00	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 0.40, noise = adaptive
0.00/0.00	c tries = 1
0.00/0.00	c 
0.02/0.08	c      0    60699         0     60699     20131      0.08
0.02/0.08	s SATISFIABLE
0.02/0.08	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 0
0.02/0.08	c Done in 0.080000 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-1529105-1238592132/watcher-1529105-1238592132 -o /tmp/evaluation-result-1529105-1238592132/solver-1529105-1238592132 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1529105-1238592132.cnf 708580072 

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: 1.01 1.00 1.02 2/69 21358
/proc/meminfo: memFree=1503064/2055920 swapFree=4171336/4192956
[pid=21358] ppid=21356 vsize=1017720 CPUtime=0
/proc/21358/stat : 21358 (gnovelty+2) R 21356 21358 21234 0 -1 4194304 191 0 0 0 0 0 0 0 18 0 1 0 1131876386 1042145280 174 1992294400 134512640 135663704 4294956224 18446744073709551615 134546465 0 0 4096 0 0 0 0 17 1 0 0
/proc/21358/statm: 254430 174 112 281 0 254146 0

[startup+0.0283809 s]
/proc/loadavg: 1.01 1.00 1.02 2/69 21358
/proc/meminfo: memFree=1503064/2055920 swapFree=4171336/4192956
[pid=21358] ppid=21356 vsize=1017720 CPUtime=0.02
/proc/21358/stat : 21358 (gnovelty+2) R 21356 21358 21234 0 -1 4194304 191 0 0 0 2 0 0 0 18 0 1 0 1131876386 1042145280 174 1992294400 134512640 135663704 4294956224 18446744073709551615 134524503 0 0 4096 0 0 0 0 17 1 0 0
/proc/21358/statm: 254430 174 112 281 0 254146 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1017720

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

[startup+0.0283809 s]
/proc/loadavg: 1.01 1.00 1.02 2/69 21358
/proc/meminfo: memFree=1503064/2055920 swapFree=4171336/4192956
[pid=21358] ppid=21356 vsize=1017720 CPUtime=0.02
/proc/21358/stat : 21358 (gnovelty+2) R 21356 21358 21234 0 -1 4194304 191 0 0 0 2 0 0 0 18 0 1 0 1131876386 1042145280 174 1992294400 134512640 135663704 4294956224 18446744073709551615 134524503 0 0 4096 0 0 0 0 17 1 0 0
/proc/21358/statm: 254430 174 112 281 0 254146 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1017720

Child status: 10
Real time (s): 0.0848509
CPU time (s): 0.083986
CPU user time (s): 0.081987
CPU system time (s): 0.001999
CPU usage (%): 98.9807
Max. virtual memory (cumulated for all children) (KiB): 1017720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.081987
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 195
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= 5

runsolver used 0.005999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node44 at 2009-04-01 15:22:12
IDJOB=1529105
IDBENCH=70722
IDSOLVER=548
FILE ID=node44/1529105-1238592132
PBS_JOBID= 9068320
Free space on /tmp= 66400 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S1924575376-025.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1529105-1238592132/watcher-1529105-1238592132 -o /tmp/evaluation-result-1529105-1238592132/solver-1529105-1238592132 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1529105-1238592132.cnf 708580072

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

MD5SUM BENCH= 6fb0ba561e085817334f61be44abbbd8
RANDOM SEED=708580072

node44.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		: 3000.241
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		: 3000.241
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:       1503544 kB
Buffers:         94708 kB
Cached:         350912 kB
SwapCached:      11068 kB
Active:         212544 kB
Inactive:       245632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1503544 kB
SwapTotal:     4192956 kB
SwapFree:      4171336 kB
Dirty:            1416 kB
Writeback:           0 kB
Mapped:          18216 kB
Slab:            79552 kB
Committed_AS:  2818244 kB
PageTables:       1796 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= 66396 MiB
End job on node44 at 2009-04-01 15:22:13