Trace number 1784347

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
MiniSat 2.1 (Sat-race'08 Edition)SAT 0.037993 0.038419

General information on the benchmark

NameCRAFTED/sgi/
satsgi-n23himBHm27-p0-q251.cnf
MD5SUMf29b814bccf91d668c4cad39543bc72b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008997
Satisfiable
(Un)Satisfiability was proved
Number of variables621
Number of clauses14927
Sum of the clauses size30429
Maximum clause length27
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 214904
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 523

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.01	c |  Number of variables:           621                                         |
0.00/0.01	c |  Number of clauses:           14927                                         |
0.00/0.01	c |  Parse time:                   0.01 s                                       |
0.03/0.03	c |  Simplification time:          0.03 s                                       |
0.03/0.03	c |                                                                             |
0.03/0.03	c ============================[ Search Statistics ]==============================
0.03/0.03	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.03/0.03	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.03/0.03	c ===============================================================================
0.03/0.03	c ===============================================================================
0.03/0.03	c restarts              : 1
0.03/0.03	c conflicts             : 0              (0 /sec)
0.03/0.03	c decisions             : 347            (9640 /sec)
0.03/0.03	c propagations          : 621            (17253 /sec)
0.03/0.03	c conflict literals     : 0              ( nan % deleted)
0.03/0.03	c Memory used           : 7.88 MB
0.03/0.03	c CPU time              : 0.035994 s
0.03/0.03	c 
0.03/0.03	s SATISFIABLE
0.03/0.03	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 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1784347-1241934904/watcher-1784347-1241934904 -o /tmp/evaluation-result-1784347-1241934904/solver-1784347-1241934904 -C 5000 -W 6000 -M 1800 HOME/minisat HOME/instance-1784347-1241934904.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.81 0.95 0.98 3/64 32577
/proc/meminfo: memFree=1724888/2055920 swapFree=4093368/4192956
[pid=32577] ppid=32575 vsize=7624 CPUtime=0
/proc/32577/stat : 32577 (minisat) R 32575 32577 31957 0 -1 4194304 230 0 0 0 0 0 0 0 18 0 1 0 221524064 7806976 214 1992294400 4194304 5092341 548682068848 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/32577/statm: 1906 215 63 219 0 1684 0

[startup+0.0333689 s]
/proc/loadavg: 0.81 0.95 0.98 3/64 32577
/proc/meminfo: memFree=1724888/2055920 swapFree=4093368/4192956
[pid=32577] ppid=32575 vsize=8068 CPUtime=0.03
/proc/32577/stat : 32577 (minisat) R 32575 32577 31957 0 -1 4194304 401 0 0 0 3 0 0 0 18 0 1 0 221524064 8261632 385 1992294400 4194304 5092341 548682068848 18446744073709551615 4219729 0 0 4096 3 0 0 0 17 1 0 0
/proc/32577/statm: 2017 385 87 219 0 1795 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 8068

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

[startup+0.0333689 s]
/proc/loadavg: 0.81 0.95 0.98 3/64 32577
/proc/meminfo: memFree=1724888/2055920 swapFree=4093368/4192956
[pid=32577] ppid=32575 vsize=8068 CPUtime=0.03
/proc/32577/stat : 32577 (minisat) R 32575 32577 31957 0 -1 4194304 401 0 0 0 3 0 0 0 18 0 1 0 221524064 8261632 385 1992294400 4194304 5092341 548682068848 18446744073709551615 4219729 0 0 4096 3 0 0 0 17 1 0 0
/proc/32577/statm: 2017 385 87 219 0 1795 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 8068

Child status: 10
Real time (s): 0.038419
CPU time (s): 0.037993
CPU user time (s): 0.035994
CPU system time (s): 0.001999
CPU usage (%): 98.8911
Max. virtual memory (cumulated for all children) (KiB): 8068

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.035994
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= 461
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= 2
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node10 at 2009-05-10 07:55:04
IDJOB=1784347
IDBENCH=71235
IDSOLVER=608
FILE ID=node10/1784347-1241934904
PBS_JOBID= 9264997
Free space on /tmp= 66404 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/CRAFTED/sgi/satsgi-n23himBHm27-p0-q251.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1784347-1241934904/watcher-1784347-1241934904 -o /tmp/evaluation-result-1784347-1241934904/solver-1784347-1241934904 -C 5000 -W 6000 -M 1800  HOME/minisat HOME/instance-1784347-1241934904.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= f29b814bccf91d668c4cad39543bc72b
RANDOM SEED=1819840430

node10.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.263
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	: 5931.00
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		: 3000.263
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:       1725304 kB
Buffers:         51856 kB
Cached:         139332 kB
SwapCached:      94412 kB
Active:         123536 kB
Inactive:       163336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1725304 kB
SwapTotal:     4192956 kB
SwapFree:      4093368 kB
Dirty:            2012 kB
Writeback:           0 kB
Mapped:          14080 kB
Slab:            29716 kB
Committed_AS:   739060 kB
PageTables:       1372 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= 66404 MiB
End job on node10 at 2009-05-10 07:55:04