Trace number 1738334

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
gnovelty+ 2009-03-22SAT 0.296954 0.297721

General information on the benchmark

NameCRAFTED/sgi/
new-difficult-23-189-21-75.cnf
MD5SUM46a186d5aa9ba41a176adf24fb365342
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.195969
Satisfiable
(Un)Satisfiability was proved
Number of variables483
Number of clauses25396
Sum of the clauses size51233
Maximum clause length23
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 225375
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 

0.09/0.18	c +------------------------------+
0.09/0.18	c | gNovelty+, version 1.2       |
0.09/0.18	c +------------------------------+
0.09/0.18	c gnovelty+ -h for help
0.09/0.18	c 
0.09/0.18	finish initINstance()
0.09/0.18	c Problem instance: numAtoms = 483, numClauses = 25396, numLiterals = 51233
0.09/0.18	c General parameters: seed = 2144065968, timeout = 10 secs, targetCost = 0, print solution: no
0.09/0.18	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 1.00, noise = adaptive
0.09/0.18	c tries = 1
0.09/0.18	c 
0.19/0.28	     0    20076         0     20076     18720      0.10
0.19/0.28	s SATISFIABLE
0.19/0.28	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
0.19/0.29	c Done in 0.100000 seconds

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-1738334-1240837145/watcher-1738334-1240837145 -o /tmp/evaluation-result-1738334-1240837145/solver-1738334-1240837145 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1738334-1240837145.cnf 2144065968 

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: 0.98 0.99 0.99 3/64 27520
/proc/meminfo: memFree=1570152/2055920 swapFree=4181348/4192956
[pid=27520] ppid=27518 vsize=958172 CPUtime=0
/proc/27520/stat : 27520 (gnovelty+) R 27518 27520 27270 0 -1 4194304 759 0 0 0 0 0 0 0 18 0 1 0 111747346 981168128 743 1992294400 134512640 135098890 4294956208 18446744073709551615 134517913 0 0 4096 0 0 0 0 17 1 0 0
/proc/27520/statm: 239543 749 46 143 0 239398 0

[startup+0.0396729 s]
/proc/loadavg: 0.98 0.99 0.99 3/64 27520
/proc/meminfo: memFree=1570152/2055920 swapFree=4181348/4192956
[pid=27520] ppid=27518 vsize=958172 CPUtime=0.03
/proc/27520/stat : 27520 (gnovelty+) R 27518 27520 27270 0 -1 4194304 6286 0 0 0 1 2 0 0 18 0 1 0 111747346 981168128 6270 1992294400 134512640 135098890 4294956208 18446744073709551615 134517913 0 0 4096 0 0 0 0 17 1 0 0
/proc/27520/statm: 239543 6276 46 143 0 239398 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 958172

[startup+0.10168 s]
/proc/loadavg: 0.98 0.99 0.99 3/64 27520
/proc/meminfo: memFree=1570152/2055920 swapFree=4181348/4192956
[pid=27520] ppid=27518 vsize=958952 CPUtime=0.09
/proc/27520/stat : 27520 (gnovelty+) R 27518 27520 27270 0 -1 4194304 11241 0 0 0 5 4 0 0 18 0 1 0 111747346 981966848 11224 1992294400 134512640 135098890 4294956208 18446744073709551615 134518761 0 0 4096 0 0 0 0 17 1 0 0
/proc/27520/statm: 239738 11229 48 143 0 239593 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 958952

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

[startup+0.201694 s]
/proc/loadavg: 0.98 0.99 0.99 3/64 27520
/proc/meminfo: memFree=1570152/2055920 swapFree=4181348/4192956
[pid=27520] ppid=27518 vsize=958952 CPUtime=0.19
/proc/27520/stat : 27520 (gnovelty+) R 27518 27520 27270 0 -1 4194304 19939 0 0 0 12 7 0 0 18 0 1 0 111747346 981966848 19922 1992294400 134512640 135098890 4294956208 18446744073709551615 134515578 0 0 4096 0 0 0 0 17 1 0 0
/proc/27520/statm: 239738 19922 65 143 0 239593 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 958952

Child status: 10
Real time (s): 0.297721
CPU time (s): 0.296954
CPU user time (s): 0.213967
CPU system time (s): 0.082987
CPU usage (%): 99.7424
Max. virtual memory (cumulated for all children) (KiB): 958952

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.213967
system time used= 0.082987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19942
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= 2

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node29 at 2009-04-27 14:59:05
IDJOB=1738334
IDBENCH=71805
IDSOLVER=536
FILE ID=node29/1738334-1240837145
PBS_JOBID= 9187537
Free space on /tmp= 66420 MiB

SOLVER NAME= gnovelty+ 2009-03-22
BENCH NAME= SAT09/CRAFTED/sgi/new-difficult-23-189-21-75.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1738334-1240837145/watcher-1738334-1240837145 -o /tmp/evaluation-result-1738334-1240837145/solver-1738334-1240837145 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1738334-1240837145.cnf 2144065968

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

MD5SUM BENCH= 46a186d5aa9ba41a176adf24fb365342
RANDOM SEED=2144065968

node29.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		: 3000.281
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		: 3000.281
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:       1570568 kB
Buffers:         67668 kB
Cached:         332544 kB
SwapCached:       5476 kB
Active:         150660 kB
Inactive:       257520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1570568 kB
SwapTotal:     4192956 kB
SwapFree:      4181348 kB
Dirty:             944 kB
Writeback:           0 kB
Mapped:          13636 kB
Slab:            63052 kB
Committed_AS:   507500 kB
PageTables:       1468 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= 66420 MiB
End job on node29 at 2009-04-27 14:59:05