Trace number 1523838

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
Hybrid2 2009-03-22SAT 0.014997 0.015822

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S1429776379-099.cnf
MD5SUMea276ce6a9a917d7362e239e9cf3e2f4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
Satisfiable
(Un)Satisfiability was proved
Number of variables560
Number of clauses2380
Sum of the clauses size7140
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32380
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 try 1 flip j 4499
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 -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 -500 501 502 -503 504 505 -506 -507 -508 509 -510 511 -512 513 -514 515 516 517 518 -519 -520 -521 522 523 -524 525 -526 -527 -528 529 530 531 -532 -533 -534 -535 536 537 538 539 -540 -541 -542 -543 544 -545 -546 547 548 -549 550 551 552 -553 554 555 556 557 -558 559 -560 
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-1523838-1238577638/watcher-1523838-1238577638 -o /tmp/evaluation-result-1523838-1238577638/solver-1523838-1238577638 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1523838-1238577638.cnf 924670582 

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: 2.41 2.34 1.74 3/64 3829
/proc/meminfo: memFree=1327848/2055920 swapFree=4174052/4192956
[pid=3829] ppid=3827 vsize=451072 CPUtime=0
/proc/3829/stat : 3829 (Hybrid2) R 3827 3829 3584 0 -1 4194304 147 0 0 0 0 0 0 0 18 0 1 0 1130429866 461897728 131 1992294400 134512640 135106774 4294956208 18446744073709551615 134612774 0 0 4096 0 0 0 0 17 1 0 0
/proc/3829/statm: 112768 131 53 145 0 111644 0

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

Child status: 10
Real time (s): 0.015822
CPU time (s): 0.014997
CPU user time (s): 0.014997
CPU system time (s): 0
CPU usage (%): 94.7857
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.014997
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= 223
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 0.006998 second system time

The end

Launcher Data 

Begin job on node17 at 2009-04-01 11:20:38
IDJOB=1523838
IDBENCH=70677
IDSOLVER=530
FILE ID=node17/1523838-1238577638
PBS_JOBID= 9070532
Free space on /tmp= 66340 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S1429776379-099.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523838-1238577638/watcher-1523838-1238577638 -o /tmp/evaluation-result-1523838-1238577638/solver-1523838-1238577638 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1523838-1238577638.cnf 924670582

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

MD5SUM BENCH= ea276ce6a9a917d7362e239e9cf3e2f4
RANDOM SEED=924670582

node17.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		: 3000.265
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		: 3000.265
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:       1328328 kB
Buffers:        106932 kB
Cached:         511756 kB
SwapCached:      12692 kB
Active:         211944 kB
Inactive:       420860 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1328328 kB
SwapTotal:     4192956 kB
SwapFree:      4174052 kB
Dirty:            4616 kB
Writeback:           0 kB
Mapped:          19744 kB
Slab:            80800 kB
Committed_AS:  3065524 kB
PageTables:       1464 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= 66336 MiB
End job on node17 at 2009-04-01 11:20:38