Trace number 1523762

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 0.279956 0.280853

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S658989873-070.cnf
MD5SUM33b307e970060c9ea54050d6d257eed0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2125
Sum of the clauses size6375
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32125
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.19/0.28	c try 1 flip j 236934
0.19/0.28	c A solution is found
0.19/0.28	s SATISFIABLE
0.19/0.28	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 -461 -462 463 -464 465 -466 -467 -468 -469 -470 -471 472 473 -474 -475 476 477 478 -479 480 481 -482 483 484 -485 486 487 488 -489 -490 491 -492 493 -494 495 496 497 498 499 -500 
0.19/0.28	v 0 
0.19/0.28	c Done (mycputime is 0.270 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-1523762-1238570916/watcher-1523762-1238570916 -o /tmp/evaluation-result-1523762-1238570916/solver-1523762-1238570916 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/TNM HOME/instance-1523762-1238570916.cnf 237591269 

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 1.00 3/70 7636
/proc/meminfo: memFree=1663792/2055920 swapFree=4173176/4192956
[pid=7636] ppid=7634 vsize=451060 CPUtime=0
/proc/7636/stat : 7636 (TNM) R 7634 7636 7177 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 1129754846 461885440 122 1992294400 134512640 135094415 4294956208 18446744073709551615 134523922 0 0 4096 0 0 0 0 17 1 0 0
/proc/7636/statm: 112765 122 49 142 0 111644 0

[startup+0.0187989 s]
/proc/loadavg: 1.00 1.00 1.00 3/70 7636
/proc/meminfo: memFree=1663792/2055920 swapFree=4173176/4192956
[pid=7636] ppid=7634 vsize=451060 CPUtime=0.01
/proc/7636/stat : 7636 (TNM) R 7634 7636 7177 0 -1 4194304 196 0 0 0 1 0 0 0 18 0 1 0 1129754846 461885440 180 1992294400 134512640 135094415 4294956208 18446744073709551615 134528343 0 0 4096 0 0 0 0 17 1 0 0
/proc/7636/statm: 112765 180 50 142 0 111644 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 451060

[startup+0.101808 s]
/proc/loadavg: 1.00 1.00 1.00 3/70 7636
/proc/meminfo: memFree=1663792/2055920 swapFree=4173176/4192956
[pid=7636] ppid=7634 vsize=454960 CPUtime=0.09
/proc/7636/stat : 7636 (TNM) R 7634 7636 7177 0 -1 4194304 197 0 0 0 9 0 0 0 18 0 1 0 1129754846 465879040 181 1992294400 134512640 135094415 4294956208 18446744073709551615 134528716 0 0 4096 0 0 0 0 17 1 0 0
/proc/7636/statm: 113740 181 50 142 0 112619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 454960

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

[startup+0.201817 s]
/proc/loadavg: 1.00 1.00 1.00 3/70 7636
/proc/meminfo: memFree=1663792/2055920 swapFree=4173176/4192956
[pid=7636] ppid=7634 vsize=454960 CPUtime=0.19
/proc/7636/stat : 7636 (TNM) R 7634 7636 7177 0 -1 4194304 197 0 0 0 19 0 0 0 18 0 1 0 1129754846 465879040 181 1992294400 134512640 135094415 4294956208 18446744073709551615 134536474 0 0 4096 0 0 0 0 17 1 0 0
/proc/7636/statm: 113740 181 50 142 0 112619 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 454960

Child status: 10
Real time (s): 0.280853
CPU time (s): 0.279956
CPU user time (s): 0.278957
CPU system time (s): 0.000999
CPU usage (%): 99.6806
Max. virtual memory (cumulated for all children) (KiB): 454960

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.278957
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 213
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 node36 at 2009-04-01 09:28:36
IDJOB=1523762
IDBENCH=70651
IDSOLVER=532
FILE ID=node36/1523762-1238570916
PBS_JOBID= 9062151
Free space on /tmp= 66412 MiB

SOLVER NAME= TNM 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S658989873-070.cnf
COMMAND LINE= HOME/TNM BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523762-1238570916/watcher-1523762-1238570916 -o /tmp/evaluation-result-1523762-1238570916/solver-1523762-1238570916 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/TNM HOME/instance-1523762-1238570916.cnf 237591269

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

MD5SUM BENCH= 33b307e970060c9ea54050d6d257eed0
RANDOM SEED=237591269

node36.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		: 3000.214
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		: 3000.214
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:       1664272 kB
Buffers:         78828 kB
Cached:         228292 kB
SwapCached:       9148 kB
Active:         191536 kB
Inactive:       126196 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1664272 kB
SwapTotal:     4192956 kB
SwapFree:      4173176 kB
Dirty:            4604 kB
Writeback:           0 kB
Mapped:          16348 kB
Slab:            59276 kB
Committed_AS:  3126312 kB
PageTables:       1876 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= 66408 MiB
End job on node36 at 2009-04-01 09:28:36