Trace number 310555

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
adaptg2wsat0 2007-02-08SAT 0.077987 0.0793659

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)

0.00/0.07	c try 1 flip j 75389
0.00/0.07	c A solution is found
0.00/0.07	s SATISFIABLE
0.00/0.07	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 
0.00/0.07	v 0 
0.00/0.07	c Done (mycputime is 0.070 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/node40/watcher-310555-1172560277 -o ROOT/results/node40/solver-310555-1172560277 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310555-1172560277/adaptg2wsat0 /tmp/evaluation/310555-1172560277/instance-310555-1172560277.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: 0.94 0.98 0.99 3/64 876
/proc/meminfo: memFree=1831128/2055920 swapFree=4179916/4192956
[pid=876] ppid=874 vsize=215152 CPUtime=0
/proc/876/stat : 876 (adaptg2wsat0) R 874 876 32688 0 -1 4194304 133 0 0 0 0 0 0 0 18 0 1 0 181061988 220315648 116 18446744073709551615 134512640 134930208 4294956704 18446744073709551615 134522107 0 0 4096 0 0 0 0 17 1 0 0
/proc/876/statm: 53788 116 40 101 0 53294 0

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

Child status: 10
Real time (s): 0.0793659
CPU time (s): 0.077987
CPU user time (s): 0.076988
CPU system time (s): 0.000999
CPU usage (%): 98.2626
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.076988
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= 203
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 node40 on Tue Feb 27 07:11:17 UTC 2007

IDJOB= 310555
IDBENCH= 20290
IDSOLVER= 126
FILE ID= node40/310555-1172560277

PBS_JOBID= 3971882

Free space on /tmp= 66554 MiB

SOLVER NAME= adaptg2wsat0 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/310555-1172560277/adaptg2wsat0 /tmp/evaluation/310555-1172560277/instance-310555-1172560277.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-310555-1172560277 -o ROOT/results/node40/solver-310555-1172560277 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310555-1172560277/adaptg2wsat0 /tmp/evaluation/310555-1172560277/instance-310555-1172560277.cnf            

META MD5SUM SOLVER= dc7cfffb7b5aa51d884144c196acd75c
MD5SUM BENCH=  7170ef62ab1f0b3de97654e24bebe902

RANDOM SEED= 371483149

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node40.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		: 3000.242
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		: 3000.242
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:       1831600 kB
Buffers:         29060 kB
Cached:         143916 kB
SwapCached:       7428 kB
Active:          90148 kB
Inactive:        96144 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1831600 kB
SwapTotal:     4192956 kB
SwapFree:      4179916 kB
Dirty:            6284 kB
Writeback:           0 kB
Mapped:          15220 kB
Slab:            24104 kB
Committed_AS:   291948 kB
PageTables:       1412 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= 66554 MiB

End job on node40 on Tue Feb 27 07:11:18 UTC 2007