Trace number 1529096

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 0.055991 0.0574199

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S1730125812-056.cnf
MD5SUM69b797da312e506f0ab25c6b8dcfe4ab
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
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 = 1971696185, 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 
0.04/0.05	c      0    39647         0     39647     12631      0.05
0.04/0.05	s SATISFIABLE
0.04/0.05	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
0.04/0.05	c Done in 0.050000 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-1529096-1238590993/watcher-1529096-1238590993 -o /tmp/evaluation-result-1529096-1238590993/solver-1529096-1238590993 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1529096-1238590993.cnf 1971696185 

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 0.99 2/64 18682
/proc/meminfo: memFree=1064176/2055920 swapFree=4181692/4192956
[pid=18682] ppid=18680 vsize=1017720 CPUtime=0
/proc/18682/stat : 18682 (gnovelty+2) R 18680 18682 18302 0 -1 4194304 181 0 0 0 0 0 0 0 18 0 1 0 303300636 1042145280 164 1992294400 134512640 135663704 4294956208 18446744073709551615 134521140 0 0 4096 0 0 0 0 17 1 0 0
/proc/18682/statm: 254430 167 110 281 0 254146 0

[startup+0.0459189 s]
/proc/loadavg: 0.99 0.98 0.99 2/64 18682
/proc/meminfo: memFree=1064176/2055920 swapFree=4181692/4192956
[pid=18682] ppid=18680 vsize=1017720 CPUtime=0.04
/proc/18682/stat : 18682 (gnovelty+2) R 18680 18682 18302 0 -1 4194304 191 0 0 0 4 0 0 0 18 0 1 0 303300636 1042145280 174 1992294400 134512640 135663704 4294956208 18446744073709551615 134525544 0 0 4096 0 0 0 0 17 1 0 0
/proc/18682/statm: 254430 174 112 281 0 254146 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1017720

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

[startup+0.0459189 s]
/proc/loadavg: 0.99 0.98 0.99 2/64 18682
/proc/meminfo: memFree=1064176/2055920 swapFree=4181692/4192956
[pid=18682] ppid=18680 vsize=1017720 CPUtime=0.04
/proc/18682/stat : 18682 (gnovelty+2) R 18680 18682 18302 0 -1 4194304 191 0 0 0 4 0 0 0 18 0 1 0 303300636 1042145280 174 1992294400 134512640 135663704 4294956208 18446744073709551615 134525544 0 0 4096 0 0 0 0 17 1 0 0
/proc/18682/statm: 254430 174 112 281 0 254146 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1017720

Child status: 10
Real time (s): 0.0574199
CPU time (s): 0.055991
CPU user time (s): 0.055991
CPU system time (s): 0
CPU usage (%): 97.5115
Max. virtual memory (cumulated for all children) (KiB): 1017720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.055991
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= 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= 6

runsolver used 0.005999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node42 at 2009-04-01 15:03:13
IDJOB=1529096
IDBENCH=70719
IDSOLVER=548
FILE ID=node42/1529096-1238590993
PBS_JOBID= 9062230
Free space on /tmp= 66248 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S1730125812-056.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1529096-1238590993/watcher-1529096-1238590993 -o /tmp/evaluation-result-1529096-1238590993/solver-1529096-1238590993 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1529096-1238590993.cnf 1971696185

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

MD5SUM BENCH= 69b797da312e506f0ab25c6b8dcfe4ab
RANDOM SEED=1971696185

node42.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		: 3000.211
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		: 3000.211
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:       1064656 kB
Buffers:        115852 kB
Cached:         768744 kB
SwapCached:       5184 kB
Active:         203472 kB
Inactive:       689668 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1064656 kB
SwapTotal:     4192956 kB
SwapFree:      4181692 kB
Dirty:            1420 kB
Writeback:           0 kB
Mapped:          14264 kB
Slab:            84208 kB
Committed_AS:  1075336 kB
PageTables:       1388 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= 66248 MiB
End job on node42 at 2009-04-01 15:03:13