Trace number 1528895

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 0.033994 0.0342409

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S2056912842-027.cnf
MD5SUM14b591d0eb90ad9845c9a4137eb8ce97
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.033994
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 

0.00/0.00	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 = 500, numClauses = 2125
0.00/0.00	c General parameters: seed = 1663608537, 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 
0.00/0.03	c      0    22041         0     22041      5493      0.03
0.00/0.03	s SATISFIABLE
0.00/0.03	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
0.00/0.03	c Done in 0.030000 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-1528895-1238571278/watcher-1528895-1238571278 -o /tmp/evaluation-result-1528895-1238571278/solver-1528895-1238571278 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1528895-1238571278.cnf 1663608537 

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: 0.99 0.98 1.00 3/76 6431
/proc/meminfo: memFree=1355264/2055920 swapFree=4127460/4192956
[pid=6431] ppid=6429 vsize=1017720 CPUtime=0
/proc/6431/stat : 6431 (gnovelty+2) R 6429 6431 6028 0 -1 4194304 193 0 0 0 0 0 0 0 20 0 1 0 1129788735 1042145280 176 1992294400 134512640 135663704 4294956208 18446744073709551615 134544240 0 0 4096 0 0 0 0 17 1 0 0
/proc/6431/statm: 254430 176 112 281 0 254146 0

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

Child status: 10
Real time (s): 0.0342409
CPU time (s): 0.033994
CPU user time (s): 0.033994
CPU system time (s): 0
CPU usage (%): 99.2789
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.033994
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 197
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= 1

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node63 at 2009-04-01 09:34:38
IDJOB=1528895
IDBENCH=70652
IDSOLVER=548
FILE ID=node63/1528895-1238571278
PBS_JOBID= 9062161
Free space on /tmp= 66484 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S2056912842-027.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1528895-1238571278/watcher-1528895-1238571278 -o /tmp/evaluation-result-1528895-1238571278/solver-1528895-1238571278 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1528895-1238571278.cnf 1663608537

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

MD5SUM BENCH= 14b591d0eb90ad9845c9a4137eb8ce97
RANDOM SEED=1663608537

node63.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		: 3000.285
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		: 3000.285
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:       1355680 kB
Buffers:         96048 kB
Cached:         464128 kB
SwapCached:      55360 kB
Active:         216888 kB
Inactive:       400108 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1355680 kB
SwapTotal:     4192956 kB
SwapFree:      4127460 kB
Dirty:            1420 kB
Writeback:           0 kB
Mapped:          14576 kB
Slab:            67816 kB
Committed_AS:  3399244 kB
PageTables:       2312 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= 66484 MiB
End job on node63 at 2009-04-01 09:34:38