Trace number 1736142

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
kw 2009-03-20SAT 0.529918 0.529496

General information on the benchmark

NameCRAFTED/sgi/
sgi-difficult4.cnf
MD5SUM7c37bfaa2d3bc1d2ca8c28e73d9bfb79
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables483
Number of clauses15156
Sum of the clauses size30753
Maximum clause length23
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 215135
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 521

Solver Data 

0.00/0.00	c kw (KillerWhale) version 0.6
0.00/0.00	c Copyright 2007-2009 Johan Alfredsson, Oepir
0.00/0.00	c johan@oepir.com
0.49/0.52	c 0.47 seconds
0.49/0.52	s SATISFIABLE
0.49/0.52	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 
0.49/0.52	v 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-1736142-1240810579/watcher-1736142-1240810579 -o /tmp/evaluation-result-1736142-1240810579/solver-1736142-1240810579 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/kw HOME/instance-1736142-1240810579.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 1.15 1.00 0.99 3/64 5197
/proc/meminfo: memFree=1568592/2055920 swapFree=4181900/4192956
[pid=5197] ppid=5195 vsize=3080 CPUtime=0
/proc/5197/stat : 5197 (kw) R 5195 5197 4996 0 -1 0 367 0 0 0 0 0 0 0 18 0 1 0 109085945 3153920 351 1992294400 4194304 6412682 548682068864 18446744073709551615 4348189 0 0 4096 0 0 0 0 17 1 0 0
/proc/5197/statm: 770 351 219 541 0 220 0

[startup+0.0492039 s]
/proc/loadavg: 1.15 1.00 0.99 3/64 5197
/proc/meminfo: memFree=1568592/2055920 swapFree=4181900/4192956
[pid=5197] ppid=5195 vsize=4200 CPUtime=0.04
/proc/5197/stat : 5197 (kw) R 5195 5197 4996 0 -1 0 650 0 0 0 4 0 0 0 18 0 1 0 109085945 4300800 634 1992294400 4194304 6412682 548682068864 18446744073709551615 4284873 0 0 4096 0 0 0 0 17 1 0 0
/proc/5197/statm: 1050 642 220 541 0 500 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4200

[startup+0.101213 s]
/proc/loadavg: 1.15 1.00 0.99 3/64 5197
/proc/meminfo: memFree=1568592/2055920 swapFree=4181900/4192956
[pid=5197] ppid=5195 vsize=5068 CPUtime=0.09
/proc/5197/stat : 5197 (kw) R 5195 5197 4996 0 -1 0 898 0 0 0 9 0 0 0 18 0 1 0 109085945 5189632 882 1992294400 4194304 6412682 548682068864 18446744073709551615 4508896 0 0 4096 0 0 0 0 17 1 0 0
/proc/5197/statm: 1267 882 246 541 0 717 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5068

[startup+0.301249 s]
/proc/loadavg: 1.15 1.00 0.99 3/64 5197
/proc/meminfo: memFree=1568592/2055920 swapFree=4181900/4192956
[pid=5197] ppid=5195 vsize=5200 CPUtime=0.29
/proc/5197/stat : 5197 (kw) R 5195 5197 4996 0 -1 0 931 0 0 0 29 0 0 0 19 0 1 0 109085945 5324800 915 1992294400 4194304 6412682 548682068864 18446744073709551615 4261035 0 0 4096 0 0 0 0 17 1 0 0
/proc/5197/statm: 1300 915 246 541 0 750 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5200

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

[startup+0.501285 s]
/proc/loadavg: 1.15 1.00 0.99 3/64 5197
/proc/meminfo: memFree=1568592/2055920 swapFree=4181900/4192956
[pid=5197] ppid=5195 vsize=5200 CPUtime=0.49
/proc/5197/stat : 5197 (kw) R 5195 5197 4996 0 -1 0 950 0 0 0 49 0 0 0 20 0 1 0 109085945 5324800 934 1992294400 4194304 6412682 548682068864 18446744073709551615 4508699 0 0 4096 0 0 0 0 17 1 0 0
/proc/5197/statm: 1300 934 246 541 0 750 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 5200

Child status: 10
Real time (s): 0.529496
CPU time (s): 0.529918
CPU user time (s): 0.527919
CPU system time (s): 0.001999
CPU usage (%): 100.08
Max. virtual memory (cumulated for all children) (KiB): 5200

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.527919
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= 974
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 0.004999 second system time

The end

Launcher Data 

Begin job on node44 at 2009-04-27 07:36:19
IDJOB=1736142
IDBENCH=71616
IDSOLVER=501
FILE ID=node44/1736142-1240810579
PBS_JOBID= 9187434
Free space on /tmp= 66216 MiB

SOLVER NAME= kw 2009-03-20
BENCH NAME= SAT09/CRAFTED/sgi/sgi-difficult4.cnf
COMMAND LINE= HOME/kw BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736142-1240810579/watcher-1736142-1240810579 -o /tmp/evaluation-result-1736142-1240810579/solver-1736142-1240810579 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/kw HOME/instance-1736142-1240810579.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 7c37bfaa2d3bc1d2ca8c28e73d9bfb79
RANDOM SEED=160088074

node44.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		: 3000.267
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		: 3000.267
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:       1569008 kB
Buffers:         53068 kB
Cached:         348888 kB
SwapCached:       4956 kB
Active:         131776 kB
Inactive:       278664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1569008 kB
SwapTotal:     4192956 kB
SwapFree:      4181900 kB
Dirty:            2416 kB
Writeback:           0 kB
Mapped:          14556 kB
Slab:            62412 kB
Committed_AS:   465844 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= 66212 MiB
End job on node44 at 2009-04-27 07:36:20