Trace number 310430

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
adaptg2wsat+ 2007-02-08SAT 0.013997 0.015913

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S2094973797-12-SAT.cnf
MD5SUM834f68dca74e3c1d51bff5d400695c42
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
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)

0.00/0.01	c try 1 flip j 5484
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 -560 561 -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 
0.00/0.01	v 0 
0.00/0.01	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/node21/watcher-310430-1172559504 -o ROOT/results/node21/solver-310430-1172559504 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310430-1172559504/adaptg2wsat+ /tmp/evaluation/310430-1172559504/instance-310430-1172559504.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: 1.10 1.04 1.01 3/77 17782
/proc/meminfo: memFree=1821320/2055920 swapFree=4145392/4192956
[pid=17782] ppid=17780 vsize=215152 CPUtime=0
/proc/17782/stat : 17782 (adaptg2wsat+) R 17780 17782 16981 0 -1 4194304 131 0 0 0 0 0 0 0 18 0 1 0 275904305 220315648 114 18446744073709551615 134512640 134930140 4294956704 18446744073709551615 134522106 0 0 4096 0 0 0 0 17 1 0 0
/proc/17782/statm: 53788 114 38 101 0 53294 0

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

Child status: 10
Real time (s): 0.015913
CPU time (s): 0.013997
CPU user time (s): 0.012998
CPU system time (s): 0.000999
CPU usage (%): 87.9596
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.012998
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= 199
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 0.006998 second user time and 0.001999 second system time

The end

Launcher Data (download as text)

Begin job on node21 on Tue Feb 27 06:58:24 UTC 2007

IDJOB= 310430
IDBENCH= 20286
IDSOLVER= 124
FILE ID= node21/310430-1172559504

PBS_JOBID= 3971863

Free space on /tmp= 66557 MiB

SOLVER NAME= adaptg2wsat+ 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S2094973797-12-SAT.cnf
COMMAND LINE= /tmp/evaluation/310430-1172559504/adaptg2wsat+ /tmp/evaluation/310430-1172559504/instance-310430-1172559504.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-310430-1172559504 -o ROOT/results/node21/solver-310430-1172559504 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310430-1172559504/adaptg2wsat+ /tmp/evaluation/310430-1172559504/instance-310430-1172559504.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  834f68dca74e3c1d51bff5d400695c42

RANDOM SEED= 873553077

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node21.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		: 3000.245
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		: 3000.245
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:       1821728 kB
Buffers:         36372 kB
Cached:         126720 kB
SwapCached:      16496 kB
Active:         109224 kB
Inactive:        85112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1821728 kB
SwapTotal:     4192956 kB
SwapFree:      4145392 kB
Dirty:            6260 kB
Writeback:           0 kB
Mapped:          30296 kB
Slab:            25464 kB
Committed_AS:   761736 kB
PageTables:       1676 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= 66557 MiB

End job on node21 on Tue Feb 27 06:58:24 UTC 2007