Trace number 1534612

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 0.081987 0.082769

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 

0.05/0.08	c 0 clauses are redundant and removed
0.05/0.08	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.05/0.08	c 0 vars are fixed and 0 clauses are removed after lookahead
0.05/0.08	c initial seed is 1346088508
0.05/0.08	c try 1 flip j 72439 walk 61095 seed 1521051952
0.05/0.08	c A solution is found
0.05/0.08	s SATISFIABLE
0.05/0.08	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 
0.05/0.08	v 0 
0.05/0.08	c Done (mycputime is 0.080 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-1534612-1238583118/watcher-1534612-1238583118 -o /tmp/evaluation-result-1534612-1238583118/solver-1534612-1238583118 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009 HOME/instance-1534612-1238583118.cnf 1346088508 

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 2235
/proc/meminfo: memFree=1508440/2055920 swapFree=4172472/4192956
[pid=2235] ppid=2233 vsize=415928 CPUtime=0
/proc/2235/stat : 2235 (adaptg2wsat2009) R 2233 2235 1323 0 -1 4194304 139 0 0 0 0 0 0 0 18 0 1 0 1130975003 425910272 122 1992294400 134512640 135106963 4294956192 18446744073709551615 134523302 0 0 4096 0 0 0 0 17 1 0 0
/proc/2235/statm: 103982 122 50 145 0 102858 0

[startup+0.0517239 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 2235
/proc/meminfo: memFree=1508440/2055920 swapFree=4172472/4192956
[pid=2235] ppid=2233 vsize=416064 CPUtime=0.05
/proc/2235/stat : 2235 (adaptg2wsat2009) R 2233 2235 1323 0 -1 4194304 199 0 0 0 5 0 0 0 18 0 1 0 1130975003 426049536 182 1992294400 134512640 135106963 4294956192 18446744073709551615 134531349 0 0 4096 0 0 0 0 17 1 0 0
/proc/2235/statm: 104016 182 60 145 0 102892 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 416064

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

[startup+0.0517239 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 2235
/proc/meminfo: memFree=1508440/2055920 swapFree=4172472/4192956
[pid=2235] ppid=2233 vsize=416064 CPUtime=0.05
/proc/2235/stat : 2235 (adaptg2wsat2009) R 2233 2235 1323 0 -1 4194304 199 0 0 0 5 0 0 0 18 0 1 0 1130975003 426049536 182 1992294400 134512640 135106963 4294956192 18446744073709551615 134531349 0 0 4096 0 0 0 0 17 1 0 0
/proc/2235/statm: 104016 182 60 145 0 102892 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 416064

Child status: 10
Real time (s): 0.082769
CPU time (s): 0.081987
CPU user time (s): 0.081987
CPU system time (s): 0
CPU usage (%): 99.0552
Max. virtual memory (cumulated for all children) (KiB): 416064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.081987
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= 210
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= 1

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node37 at 2009-04-01 12:51:58
IDJOB=1534612
IDBENCH=70696
IDSOLVER=542
FILE ID=node37/1534612-1238583118
PBS_JOBID= 9062213
Free space on /tmp= 66428 MiB

SOLVER NAME= adaptg2wsat2009 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/440/unif-k3-r4.25-v440-c1870-S1339293988-069.cnf
COMMAND LINE= HOME/adaptg2wsat2009 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534612-1238583118/watcher-1534612-1238583118 -o /tmp/evaluation-result-1534612-1238583118/solver-1534612-1238583118 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009 HOME/instance-1534612-1238583118.cnf 1346088508

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

MD5SUM BENCH= 04c00558435f25dfb5b6e5262d4684dc
RANDOM SEED=1346088508

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:       1508920 kB
Buffers:         97408 kB
Cached:         351108 kB
SwapCached:      14360 kB
Active:         212300 kB
Inactive:       251996 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1508920 kB
SwapTotal:     4192956 kB
SwapFree:      4172472 kB
Dirty:            4596 kB
Writeback:           0 kB
Mapped:          18760 kB
Slab:            68824 kB
Committed_AS:  3044724 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 12:51:58