Trace number 1738294

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+-T 2009-03-22SAT 0.52292 0.346684

General information on the benchmark

NameCRAFTED/sgi/
new-difficult-22-173-20-80.cnf
MD5SUMfcc3fcd52c921ace90c257c57bbc4b6d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.064989
Satisfiable
(Un)Satisfiability was proved
Number of variables440
Number of clauses22276
Sum of the clauses size44952
Maximum clause length22
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 222256
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 520

Solver Data 

0.09/0.15	c +------------------------------+
0.09/0.15	c | gNovelty+, version 1.0       |
0.09/0.15	c +------------------------------+
0.09/0.15	c gnovelty+ -h for help
0.09/0.15	c 
0.43/0.33	s SATISFIABLE
0.43/0.33	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 0
0.43/0.33	c Done in 0.350000 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-1738294-1240836979/watcher-1738294-1240836979 -o /tmp/evaluation-result-1738294-1240836979/solver-1738294-1240836979 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1738294-1240836979.cnf 635539091 2 

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: 1.00 1.13 1.28 3/64 1663
/proc/meminfo: memFree=1763200/2055920 swapFree=4181276/4192956
[pid=1663] ppid=1661 vsize=509152 CPUtime=0
/proc/1663/stat : 1663 (gnovelty+) R 1661 1663 1418 0 -1 4194304 1019 0 0 0 0 0 0 0 18 0 1 0 111725639 521371648 1004 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/1663/statm: 127288 1012 103 285 0 127000 0

[startup+0.0156981 s]
/proc/loadavg: 1.00 1.13 1.28 3/64 1663
/proc/meminfo: memFree=1763200/2055920 swapFree=4181276/4192956
[pid=1663] ppid=1661 vsize=509152 CPUtime=0.01
/proc/1663/stat : 1663 (gnovelty+) R 1661 1663 1418 0 -1 4194304 3267 0 0 0 0 1 0 0 18 0 1 0 111725639 521371648 3252 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/1663/statm: 127288 3260 102 285 0 127000 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 509152

[startup+0.101706 s]
/proc/loadavg: 1.00 1.13 1.28 3/64 1663
/proc/meminfo: memFree=1763200/2055920 swapFree=4181276/4192956
[pid=1663] ppid=1661 vsize=516964 CPUtime=0.09
/proc/1663/stat : 1663 (gnovelty+) R 1661 1663 1418 0 -1 4194304 13432 0 0 0 4 5 0 0 18 0 1 0 111725639 529371136 13416 1992294400 134512640 135680988 4294956192 18446744073709551615 134537779 0 0 4096 0 0 0 0 17 1 0 0
/proc/1663/statm: 129241 13422 102 285 0 128953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 516964

[startup+0.301728 s]
/proc/loadavg: 1.00 1.13 1.28 3/64 1663
/proc/meminfo: memFree=1763200/2055920 swapFree=4181276/4192956
[pid=1663] ppid=1661 vsize=530752 CPUtime=0.43
/proc/1663/stat : 1663 (gnovelty+) R 1661 1663 1418 0 -1 4194304 20131 0 0 0 35 8 0 0 17 0 2 0 111725639 543490048 20115 1992294400 134512640 135680988 4294956192 18446744073709551615 134957681 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/1663/statm: 132688 20115 106 285 0 132400 0
Current children cumulated CPU time (s) 0.43
Current children cumulated vsize (KiB) 530752

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

Child status: 10
Real time (s): 0.346684
CPU time (s): 0.52292
CPU user time (s): 0.420936
CPU system time (s): 0.101984
CPU usage (%): 150.835
Max. virtual memory (cumulated for all children) (KiB): 530752

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.420936
system time used= 0.101984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 20145
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= 18
involuntary context switches= 3

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node47 at 2009-04-27 14:56:19
IDJOB=1738294
IDBENCH=71804
IDSOLVER=550
FILE ID=node47/1738294-1240836979
PBS_JOBID= 9187541
Free space on /tmp= 66292 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/CRAFTED/sgi/new-difficult-22-173-20-80.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1738294-1240836979/watcher-1738294-1240836979 -o /tmp/evaluation-result-1738294-1240836979/solver-1738294-1240836979 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1738294-1240836979.cnf 635539091 2

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 2

MD5SUM BENCH= fcc3fcd52c921ace90c257c57bbc4b6d
RANDOM SEED=635539091

node47.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		: 3000.212
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		: 3000.212
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:       1763680 kB
Buffers:         39048 kB
Cached:         171840 kB
SwapCached:       5488 kB
Active:          48920 kB
Inactive:       169852 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1763680 kB
SwapTotal:     4192956 kB
SwapFree:      4181276 kB
Dirty:            1660 kB
Writeback:           0 kB
Mapped:          13536 kB
Slab:            59500 kB
Committed_AS:   479284 kB
PageTables:       1444 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= 66288 MiB
End job on node47 at 2009-04-27 14:56:19