Trace number 1523897

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
TNM 2009-03-22SAT 0.024995 0.024118

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/440/
unif-k3-r4.25-v440-c1870-S1339293988-069.cnf
MD5SUM04c00558435f25dfb5b6e5262d4684dc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009998
Satisfiable
(Un)Satisfiability was proved
Number of variables440
Number of clauses1870
Sum of the clauses size5610
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31870
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.02	c try 1 flip j 13979
0.00/0.02	c A solution is found
0.00/0.02	s SATISFIABLE
0.00/0.02	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 
0.00/0.02	v 0 
0.00/0.02	c Done (mycputime is 0.020 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-1523897-1238583116/watcher-1523897-1238583116 -o /tmp/evaluation-result-1523897-1238583116/solver-1523897-1238583116 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/TNM HOME/instance-1523897-1238583116.cnf 1115830732 

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: 1.00 1.00 1.09 3/64 2100
/proc/meminfo: memFree=1508760/2055920 swapFree=4172472/4192956
[pid=2100] ppid=2098 vsize=451060 CPUtime=0
/proc/2100/stat : 2100 (TNM) R 2098 2100 1323 0 -1 4194304 134 0 0 0 0 0 0 0 18 0 1 0 1130974859 461885440 118 1992294400 134512640 135094415 4294956208 18446744073709551615 134523778 0 0 4096 0 0 0 0 17 1 0 0
/proc/2100/statm: 112765 118 49 142 0 111644 0

[startup+0.00930596 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 2100
/proc/meminfo: memFree=1508760/2055920 swapFree=4172472/4192956
[pid=2100] ppid=2098 vsize=451060 CPUtime=0
/proc/2100/stat : 2100 (TNM) R 2098 2100 1323 0 -1 4194304 186 0 0 0 0 0 0 0 18 0 1 0 1130974859 461885440 170 1992294400 134512640 135094415 4294956208 18446744073709551615 134528730 0 0 4096 0 0 0 0 17 1 0 0
/proc/2100/statm: 112765 170 50 142 0 111644 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 451060

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

[startup+0.00930596 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 2100
/proc/meminfo: memFree=1508760/2055920 swapFree=4172472/4192956
[pid=2100] ppid=2098 vsize=451060 CPUtime=0
/proc/2100/stat : 2100 (TNM) R 2098 2100 1323 0 -1 4194304 186 0 0 0 0 0 0 0 18 0 1 0 1130974859 461885440 170 1992294400 134512640 135094415 4294956208 18446744073709551615 134528730 0 0 4096 0 0 0 0 17 1 0 0
/proc/2100/statm: 112765 170 50 142 0 111644 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 451060

Child status: 10
Real time (s): 0.024118
CPU time (s): 0.024995
CPU user time (s): 0.022996
CPU system time (s): 0.001999
CPU usage (%): 103.636
Max. virtual memory (cumulated for all children) (KiB): 451060

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.022996
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= 204
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 0.005999 second system time

The end

Launcher Data 

Begin job on node37 at 2009-04-01 12:51:56
IDJOB=1523897
IDBENCH=70696
IDSOLVER=532
FILE ID=node37/1523897-1238583116
PBS_JOBID= 9062213
Free space on /tmp= 66428 MiB

SOLVER NAME= TNM 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/440/unif-k3-r4.25-v440-c1870-S1339293988-069.cnf
COMMAND LINE= HOME/TNM BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523897-1238583116/watcher-1523897-1238583116 -o /tmp/evaluation-result-1523897-1238583116/solver-1523897-1238583116 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/TNM HOME/instance-1523897-1238583116.cnf 1115830732

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

MD5SUM BENCH= 04c00558435f25dfb5b6e5262d4684dc
RANDOM SEED=1115830732

node37.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:       1509176 kB
Buffers:         97344 kB
Cached:         350968 kB
SwapCached:      14360 kB
Active:         212180 kB
Inactive:       251960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1509176 kB
SwapTotal:     4192956 kB
SwapFree:      4172472 kB
Dirty:            4584 kB
Writeback:           0 kB
Mapped:          18760 kB
Slab:            68712 kB
Committed_AS:  3034884 kB
PageTables:       1384 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= 66424 MiB
End job on node37 at 2009-04-01 12:51:57