Trace number 310546

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, and are wall clock time (not CPU 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
FH 2007-02-08SAT 0.025995 0.0262551

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1244126495-18-SAT.cnf
MD5SUM7170ef62ab1f0b3de97654e24bebe902
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010998
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.02	c try 1 flip j 11243
0.00/0.02	c A solution is found
0.00/0.02	s SATISFIABLE
0.00/0.02	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 -561 562 -563 564 -565 -566 -567 -568 569 570 -571 572 573 -574 575 -576 -577 578 -579 -580 581 582 -583 -584 -585 -586 -587 -588 589 -590 -591 -592 593 -594 595 596 597 -598 -599 600 -601 -602 -603 -604 -605 -606 -607 608 -609 -610 611 -612 613 614 -615 -616 617 618 619 620 -621 -622 623 624 625 -626 -627 628 -629 630 
0.00/0.02	v 0 
0.00/0.02	c Done (mycputime is 0.000 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node24/watcher-310546-1172560262 -o ROOT/results/node24/solver-310546-1172560262 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310546-1172560262/FH /tmp/evaluation/310546-1172560262/instance-310546-1172560262.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.87 0.96 0.98 3/77 25815
/proc/meminfo: memFree=1810584/2055920 swapFree=4139416/4192956
[pid=25815] ppid=25813 vsize=244848 CPUtime=0
/proc/25815/stat : 25815 (FH) R 25813 25815 25155 0 -1 4194304 129 0 0 0 0 0 0 0 18 0 1 0 275980573 250724352 112 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134523751 0 0 4096 0 0 0 0 17 1 0 0
/proc/25815/statm: 61212 112 36 103 0 60716 0

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

Child status: 10
Real time (s): 0.0262551
CPU time (s): 0.025995
CPU user time (s): 0.022996
CPU system time (s): 0.002999
CPU usage (%): 99.0093
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.022996
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 219
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= 8
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node24 on Tue Feb 27 07:11:03 UTC 2007

IDJOB= 310546
IDBENCH= 20290
IDSOLVER= 117
FILE ID= node24/310546-1172560262

PBS_JOBID= 3971873

Free space on /tmp= 66555 MiB

SOLVER NAME= FH 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1244126495-18-SAT.cnf
COMMAND LINE= /tmp/evaluation/310546-1172560262/FH /tmp/evaluation/310546-1172560262/instance-310546-1172560262.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-310546-1172560262 -o ROOT/results/node24/solver-310546-1172560262 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310546-1172560262/FH /tmp/evaluation/310546-1172560262/instance-310546-1172560262.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  7170ef62ab1f0b3de97654e24bebe902

RANDOM SEED= 916015714

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.232
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		: 3000.232
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:       1810928 kB
Buffers:         28868 kB
Cached:         162400 kB
SwapCached:       8788 kB
Active:          90168 kB
Inactive:       115808 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1810928 kB
SwapTotal:     4192956 kB
SwapFree:      4139416 kB
Dirty:            6148 kB
Writeback:           0 kB
Mapped:          15564 kB
Slab:            24536 kB
Committed_AS:   780228 kB
PageTables:       1732 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= 66555 MiB

End job on node24 on Tue Feb 27 07:11:03 UTC 2007