Trace number 1534763

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
adaptg2wsat2009++ 2009-03-23SAT 0.011998 0.012701

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S1733990810-090.cnf
MD5SUMcc65c4677bcd52e268abf185559aaea4
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 variables460
Number of clauses1955
Sum of the clauses size5865
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31955
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c 0 clauses are redundant and removed
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.01	c initial seed is 696779569
0.00/0.01	c try 1 flip j 1631 walk 1214 seed 946220320
0.00/0.01	c A solution is found
0.00/0.01	s SATISFIABLE
0.00/0.01	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 
0.00/0.01	v 0 
0.00/0.01	c Done (mycputime is 0.010 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-1534763-1238593447/watcher-1534763-1238593447 -o /tmp/evaluation-result-1534763-1238593447/solver-1534763-1238593447 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534763-1238593447.cnf 696779569 

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: 1.07 1.02 1.00 3/64 29470
/proc/meminfo: memFree=1295448/2055920 swapFree=4178260/4192956
[pid=29470] ppid=29468 vsize=415928 CPUtime=0
/proc/29470/stat : 29470 (adaptg2wsat2009) R 29468 29470 29063 0 -1 4194304 140 0 0 0 0 0 0 0 18 0 1 0 897936159 425910272 123 1992294400 134512640 135107411 4294956192 18446744073709551615 134523235 0 0 4096 0 0 0 0 17 1 0 0
/proc/29470/statm: 103982 123 49 145 0 102858 0

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

Child status: 10
Real time (s): 0.012701
CPU time (s): 0.011998
CPU user time (s): 0.011998
CPU system time (s): 0
CPU usage (%): 94.4651
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.011998
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= 215
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 node39 at 2009-04-01 15:44:07
IDJOB=1534763
IDBENCH=70726
IDSOLVER=543
FILE ID=node39/1534763-1238593447
PBS_JOBID= 9068318
Free space on /tmp= 66252 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S1733990810-090.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534763-1238593447/watcher-1534763-1238593447 -o /tmp/evaluation-result-1534763-1238593447/solver-1534763-1238593447 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534763-1238593447.cnf 696779569

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

MD5SUM BENCH= cc65c4677bcd52e268abf185559aaea4
RANDOM SEED=696779569

node39.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1295864 kB
Buffers:         98188 kB
Cached:         562764 kB
SwapCached:       8168 kB
Active:         233908 kB
Inactive:       437028 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1295864 kB
SwapTotal:     4192956 kB
SwapFree:      4178260 kB
Dirty:            4608 kB
Writeback:           0 kB
Mapped:          16736 kB
Slab:            75428 kB
Committed_AS:  2503004 kB
PageTables:       1188 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 node39 at 2009-04-01 15:44:07