Trace number 299392

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
Hybrid1 2007-02-08SAT 0.072988 0.0726199

General information on the benchmark

Namerandom/OnTreshold/3SAT/v650/
unif-k3-r4.261-v650-c2769-S1481730841-18.SAT.shuffled.cnf
MD5SUMca23c03e62584abdedb2b20d52898b44
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.041993
Satisfiable
(Un)Satisfiability was proved
Number of variables650
Number of clauses2769
Sum of the clauses size8307
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32769
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 38196
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 -631 632 -633 -634 -635 636 -637 638 639 640 641 -642 643 -644 -645 646 -647 648 649 650 
0.00/0.07	v 0 
0.00/0.07	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/node55/watcher-299392-1171870833 -o ROOT/results/node55/solver-299392-1171870833 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299392-1171870833/Hybrid1 /tmp/evaluation/299392-1171870833/instance-299392-1171870833.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: 0.92 0.98 0.99 3/64 15886
/proc/meminfo: memFree=281456/2055920 swapFree=4183208/4192956
[pid=15886] ppid=15884 vsize=244848 CPUtime=0
/proc/15886/stat : 15886 (Hybrid1) R 15884 15886 15453 0 -1 4194304 122 0 0 0 0 0 0 0 18 0 1 0 207039726 250724352 105 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134588695 0 0 4096 0 0 0 0 17 1 0 0
/proc/15886/statm: 61212 110 40 103 0 60716 0

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

Child status: 10
Real time (s): 0.0726199
CPU time (s): 0.072988
CPU user time (s): 0.068989
CPU system time (s): 0.003999
CPU usage (%): 100.507
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.068989
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 241
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= 1

runsolver used 0.002999 second user time and 0.002999 second system time

The end

Launcher Data (download as text)

Begin job on node55 on Mon Feb 19 07:40:33 UTC 2007

IDJOB= 299392
IDBENCH= 20009
IDSOLVER= 115
FILE ID= node55/299392-1171870833

PBS_JOBID= 3839757

Free space on /tmp= 66558 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v650/unif-k3-r4.261-v650-c2769-S1481730841-18.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299392-1171870833/Hybrid1 /tmp/evaluation/299392-1171870833/instance-299392-1171870833.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-299392-1171870833 -o ROOT/results/node55/solver-299392-1171870833 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299392-1171870833/Hybrid1 /tmp/evaluation/299392-1171870833/instance-299392-1171870833.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  ca23c03e62584abdedb2b20d52898b44

RANDOM SEED= 394716749

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node55.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		: 3000.247
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		: 3000.247
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:        281864 kB
Buffers:         51684 kB
Cached:        1601168 kB
SwapCached:       3628 kB
Active:         758952 kB
Inactive:       903452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        281864 kB
SwapTotal:     4192956 kB
SwapFree:      4183208 kB
Dirty:            6152 kB
Writeback:           0 kB
Mapped:          15476 kB
Slab:            97716 kB
Committed_AS:   734464 kB
PageTables:       1380 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= 66558 MiB

End job on node55 on Mon Feb 19 07:40:33 UTC 2007