Trace number 1783448

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 0.183971 0.184752

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S554804223-012.cnf
MD5SUMfb88daaef532d2aea4a43cab65510e36
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.018996
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 

0.09/0.13	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 
0.09/0.17	s SATISFIABLE
0.09/0.17	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
0.09/0.17	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-1783448-1241731655/watcher-1783448-1241731655 -o /tmp/evaluation-result-1783448-1241731655/solver-1783448-1241731655 -C 5000 -W 6000 -M 1800 HOME/gnovelty+ HOME/instance-1783448-1241731655.cnf 1039519892 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: 0.86 0.97 0.99 3/64 18419
/proc/meminfo: memFree=1783856/2055920 swapFree=4151772/4192956
[pid=18419] ppid=18417 vsize=509152 CPUtime=0
/proc/18419/stat : 18419 (gnovelty+) R 18417 18419 18193 0 -1 4194304 1009 0 0 0 0 0 0 0 18 0 1 0 201198731 521371648 994 1992294400 134512640 135680988 4294956208 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/18419/statm: 127288 1001 102 285 0 127000 0

[startup+0.09211 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 18419
/proc/meminfo: memFree=1783856/2055920 swapFree=4151772/4192956
[pid=18419] ppid=18417 vsize=516964 CPUtime=0.08
/proc/18419/stat : 18419 (gnovelty+) R 18417 18419 18193 0 -1 4194304 14668 0 0 0 2 6 0 0 18 0 1 0 201198731 529371136 14653 1992294400 134512640 135680988 4294956208 18446744073709551615 134537842 0 0 4096 0 0 0 0 17 1 0 0
/proc/18419/statm: 129241 14658 102 285 0 128953 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 516964

[startup+0.101107 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 18419
/proc/meminfo: memFree=1783856/2055920 swapFree=4151772/4192956
[pid=18419] ppid=18417 vsize=516964 CPUtime=0.09
/proc/18419/stat : 18419 (gnovelty+) R 18417 18419 18193 0 -1 4194304 15754 0 0 0 3 6 0 0 18 0 1 0 201198731 529371136 15738 1992294400 134512640 135680988 4294956208 18446744073709551615 134537779 0 0 4096 0 0 0 0 17 1 0 0
/proc/18419/statm: 129241 15743 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): 0.184752
CPU time (s): 0.183971
CPU user time (s): 0.087986
CPU system time (s): 0.095985
CPU usage (%): 99.5773
Max. virtual memory (cumulated for all children) (KiB): 516964

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.087986
system time used= 0.095985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19734
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 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node31 at 2009-05-07 23:27:35
IDJOB=1783448
IDBENCH=70720
IDSOLVER=636
FILE ID=node31/1783448-1241731655
PBS_JOBID= 9264442
Free space on /tmp= 66244 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S554804223-012.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1783448-1241731655/watcher-1783448-1241731655 -o /tmp/evaluation-result-1783448-1241731655/solver-1783448-1241731655 -C 5000 -W 6000 -M 1800  HOME/gnovelty+ HOME/instance-1783448-1241731655.cnf 1039519892 0

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

MD5SUM BENCH= fb88daaef532d2aea4a43cab65510e36
RANDOM SEED=1039519892

node31.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		: 3000.213
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		: 3000.213
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:       1784272 kB
Buffers:         11136 kB
Cached:         193572 kB
SwapCached:      34720 kB
Active:         105412 kB
Inactive:       136508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1784272 kB
SwapTotal:     4192956 kB
SwapFree:      4151772 kB
Dirty:            1924 kB
Writeback:           0 kB
Mapped:          14092 kB
Slab:            15484 kB
Committed_AS:   692960 kB
PageTables:       1464 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= 66244 MiB
End job on node31 at 2009-05-07 23:27:36