Trace number 1523918

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 0.007998 0.0091481

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/440/
unif-k3-r4.25-v440-c1870-S208461254-049.cnf
MD5SUMcb7c78e2db807d1456447efe0ef16fcf
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
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 

0.00/0.00	c try 1 flip j 968
0.00/0.00	c A solution is found
0.00/0.00	s SATISFIABLE
0.00/0.00	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 
0.00/0.00	v 0 
0.00/0.00	c Done (mycputime is 0.000 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-1523918-1238585057/watcher-1523918-1238585057 -o /tmp/evaluation-result-1523918-1238585057/solver-1523918-1238585057 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/TNM HOME/instance-1523918-1238585057.cnf 1263343864 

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 3/64 20769
/proc/meminfo: memFree=1593792/2055920 swapFree=4179168/4192956
[pid=20769] ppid=20767 vsize=451060 CPUtime=0
/proc/20769/stat : 20769 (TNM) R 20767 20769 20190 0 -1 4194304 134 0 0 0 0 0 0 0 18 0 1 0 1131167553 461885440 118 1992294400 134512640 135094415 4294956208 18446744073709551615 134524083 0 0 4096 0 0 0 0 17 1 0 0
/proc/20769/statm: 112765 118 49 142 0 111644 0

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

Child status: 10
Real time (s): 0.0091481
CPU time (s): 0.007998
CPU user time (s): 0.007998
CPU system time (s): 0
CPU usage (%): 87.428
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.007998
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= 200
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 0.007998 second system time

The end

Launcher Data 

Begin job on node61 at 2009-04-01 13:24:17
IDJOB=1523918
IDBENCH=70703
IDSOLVER=532
FILE ID=node61/1523918-1238585057
PBS_JOBID= 9062205
Free space on /tmp= 66344 MiB

SOLVER NAME= TNM 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/440/unif-k3-r4.25-v440-c1870-S208461254-049.cnf
COMMAND LINE= HOME/TNM BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523918-1238585057/watcher-1523918-1238585057 -o /tmp/evaluation-result-1523918-1238585057/solver-1523918-1238585057 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/TNM HOME/instance-1523918-1238585057.cnf 1263343864

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

MD5SUM BENCH= cb7c78e2db807d1456447efe0ef16fcf
RANDOM SEED=1263343864

node61.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		: 3000.238
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		: 3000.238
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:       1594272 kB
Buffers:         88932 kB
Cached:         279052 kB
SwapCached:       7920 kB
Active:         205944 kB
Inactive:       171644 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1594272 kB
SwapTotal:     4192956 kB
SwapFree:      4179168 kB
Dirty:            4584 kB
Writeback:           0 kB
Mapped:          15416 kB
Slab:            70184 kB
Committed_AS:  2764020 kB
PageTables:       1372 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66340 MiB
End job on node61 at 2009-04-01 13:24:17