Trace number 1524002

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 0.048992 0.0501119

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S1614425450-034.cnf
MD5SUMb466b358793a0dcf15cdf46533518f73
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
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 

0.00/0.04	c try 1 flip j 35550
0.00/0.04	c A solution is found
0.00/0.04	s SATISFIABLE
0.00/0.04	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 
0.00/0.05	v 0 
0.00/0.05	c Done (mycputime is 0.040 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-1524002-1238595299/watcher-1524002-1238595299 -o /tmp/evaluation-result-1524002-1238595299/solver-1524002-1238595299 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/TNM HOME/instance-1524002-1238595299.cnf 1131276064 

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: 2.25 2.25 1.93 3/64 22009
/proc/meminfo: memFree=1372992/2055920 swapFree=4177944/4192956
[pid=22009] ppid=22007 vsize=451060 CPUtime=0
/proc/22009/stat : 22009 (TNM) R 22007 22009 21212 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 1132195126 461885440 119 1992294400 134512640 135094415 4294956208 18446744073709551615 134523878 0 0 4096 0 0 0 0 17 1 0 0
/proc/22009/statm: 112765 119 49 142 0 111644 0

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

Child status: 10
Real time (s): 0.0501119
CPU time (s): 0.048992
CPU user time (s): 0.048992
CPU system time (s): 0
CPU usage (%): 97.7652
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.048992
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= 206
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 0.001999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node29 at 2009-04-01 16:14:59
IDJOB=1524002
IDBENCH=70731
IDSOLVER=532
FILE ID=node29/1524002-1238595299
PBS_JOBID= 9062249
Free space on /tmp= 66472 MiB

SOLVER NAME= TNM 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S1614425450-034.cnf
COMMAND LINE= HOME/TNM BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1524002-1238595299/watcher-1524002-1238595299 -o /tmp/evaluation-result-1524002-1238595299/solver-1524002-1238595299 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/TNM HOME/instance-1524002-1238595299.cnf 1131276064

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

MD5SUM BENCH= b466b358793a0dcf15cdf46533518f73
RANDOM SEED=1131276064

node29.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		: 3000.234
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		: 3000.234
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:       1373472 kB
Buffers:        102012 kB
Cached:         476584 kB
SwapCached:       8856 kB
Active:         216344 kB
Inactive:       372808 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1373472 kB
SwapTotal:     4192956 kB
SwapFree:      4177944 kB
Dirty:            4596 kB
Writeback:           0 kB
Mapped:          16232 kB
Slab:            79300 kB
Committed_AS:  3176292 kB
PageTables:       1476 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= 66468 MiB
End job on node29 at 2009-04-01 16:14:59