Trace number 299556

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 0.172973 0.173561

General information on the benchmark

Namerandom/OnTreshold/3SAT/v650/
unif-k3-r4.261-v650-c2769-S1172355929-14.SAT.shuffled.cnf
MD5SUM53b587a5b98db42d3f124ef838f3e04f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.026995
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)

0.10/0.17	c try 1 flip j 103151
0.10/0.17	c A solution is found
0.10/0.17	s SATISFIABLE
0.10/0.17	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 
0.10/0.17	v 0 
0.10/0.17	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/node17/watcher-299556-1171873883 -o ROOT/results/node17/solver-299556-1171873883 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299556-1171873883/Hybrid1 /tmp/evaluation/299556-1171873883/instance-299556-1171873883.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: 1.00 0.99 0.99 3/77 25781
/proc/meminfo: memFree=1569728/2055920 swapFree=4192812/4192956
[pid=25781] ppid=25779 vsize=244848 CPUtime=0
/proc/25781/stat : 25781 (Hybrid1) R 25779 25781 24939 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 207342497 250724352 121 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134588695 0 0 4096 0 0 0 0 17 1 0 0
/proc/25781/statm: 61212 126 40 103 0 60716 0

[startup+0.107373 s]
/proc/loadavg: 1.00 0.99 0.99 3/77 25781
/proc/meminfo: memFree=1569728/2055920 swapFree=4192812/4192956
[pid=25781] ppid=25779 vsize=246532 CPUtime=0.1
/proc/25781/stat : 25781 (Hybrid1) R 25779 25781 24939 0 -1 4194304 228 0 0 0 10 0 0 0 18 0 1 0 207342497 252448768 208 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134546487 0 0 4096 0 0 0 0 17 1 0 0
/proc/25781/statm: 61633 208 44 103 0 61137 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246532

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

[startup+0.107373 s]
/proc/loadavg: 1.00 0.99 0.99 3/77 25781
/proc/meminfo: memFree=1569728/2055920 swapFree=4192812/4192956
[pid=25781] ppid=25779 vsize=246532 CPUtime=0.1
/proc/25781/stat : 25781 (Hybrid1) R 25779 25781 24939 0 -1 4194304 228 0 0 0 10 0 0 0 18 0 1 0 207342497 252448768 208 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134546487 0 0 4096 0 0 0 0 17 1 0 0
/proc/25781/statm: 61633 208 44 103 0 61137 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246532

Child status: 10
Real time (s): 0.173561
CPU time (s): 0.172973
CPU user time (s): 0.170974
CPU system time (s): 0.001999
CPU usage (%): 99.6612
Max. virtual memory (cumulated for all children) (KiB): 246532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.170974
system time used= 0.001999
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= 0

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node17 on Mon Feb 19 08:31:23 UTC 2007

IDJOB= 299556
IDBENCH= 20013
IDSOLVER= 115
FILE ID= node17/299556-1171873883

PBS_JOBID= 3839427

Free space on /tmp= 66540 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v650/unif-k3-r4.261-v650-c2769-S1172355929-14.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299556-1171873883/Hybrid1 /tmp/evaluation/299556-1171873883/instance-299556-1171873883.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-299556-1171873883 -o ROOT/results/node17/solver-299556-1171873883 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299556-1171873883/Hybrid1 /tmp/evaluation/299556-1171873883/instance-299556-1171873883.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  53b587a5b98db42d3f124ef838f3e04f

RANDOM SEED= 914838499

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node17.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		: 3000.229
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		: 3000.229
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:       1570136 kB
Buffers:         51892 kB
Cached:         317348 kB
SwapCached:          0 kB
Active:         276236 kB
Inactive:       137464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1570136 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6156 kB
Writeback:           0 kB
Mapped:          63360 kB
Slab:            57632 kB
Committed_AS:   752308 kB
PageTables:       1748 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= 66540 MiB

End job on node17 on Mon Feb 19 08:31:23 UTC 2007