Trace number 1784310

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
precosat 236SAT 0.103983 0.104755

General information on the benchmark

NameCRAFTED/sgi/
satsgi-n19himBHm22-p0-q181.cnf
MD5SUMdbe5f8e172b94635975a076b30fdb515
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.004998
Satisfiable
(Un)Satisfiability was proved
Number of variables418
Number of clauses8170
Sum of the clauses size16720
Maximum clause length22
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 28151
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 519

Solver Data 

0.00/0.00	c PicoSATLight Version 236 3e7a3f8825c0b9e241f38a63fee5517540b2feca
0.00/0.00	c Copyright (C) 2009, Armin Biere, JKU, Linz, Austria.  All rights reserved.
0.00/0.00	c Released on Sun Mar 22 10:16:26 CET 2009
0.00/0.00	c Compiled on Tue Mar 24 21:24:39 CET 2009
0.00/0.00	c g++ (GCC) 4.3.2 20081105 (Red Hat 4.3.2-7)
0.00/0.00	c -O3 -m32 -static -Wall -Wextra -DNDEBUG -DNLOGPRECO -DNSTATSPRECO
0.00/0.00	c -finline-limit=10000000 -fomit-frame-pointer -fno-exceptions
0.00/0.00	c Linux baghera 2.6.27.19-170.2.35.fc10.i686.PAE i686
0.00/0.00	c
0.00/0.00	c reading HOME/instance-1784310-1241934885.cnf
0.00/0.00	c found header 'p cnf 418 8170'
0.00/0.00	c finished parsing
0.00/0.00	c
0.00/0.00	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.00/0.00	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.00/0.00	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.00/0.00	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.00/0.00	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.00/0.00	c --random=1 --spread=2000 --seed=0 --skip=25
0.00/0.00	c
0.00/0.00	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.00/0.00	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.00/0.00	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.00/0.00	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.00/0.00	c
0.00/0.00	c starting search after 0.0 seconds
0.00/0.00	c no decision limit
0.00/0.00	c
0.00/0.00	c       original/binary      fixed     eliminated      learned       agility
0.00/0.00	c   seconds        variables     equivalent    conflicts       height       MB
0.00/0.00	c
0.00/0.00	c *    0.0     8170     418      0     0      0       0      0    0.0   0    1
0.09/0.10	c s    0.1     7752     399      0     0     19       0      0    0.0   0    1
0.09/0.10	c l    0.1     7752     399      0     0     19       0   1000    0.0   0    1
0.09/0.10	c 1    0.1     7752     399      0     0     19       0      0  114.0   0    1
0.09/0.10	c
0.09/0.10	s SATISFIABLE
0.09/0.10	v 1 -2 -3 -4 -5 -6 -7
0.09/0.10	v -8 -9 -10 -11 -12 -13 -14 -15
0.09/0.10	v -16 -17 -18 -19 -20 -21 -22 -23
0.09/0.10	v -24 -25 -26 -27 -28 -29 -30 -31
0.09/0.10	v -32 -33 -34 -35 -36 -37 -38 -39
0.09/0.10	v -40 -41 -42 -43 44 -45 -46 -47
0.09/0.10	v -48 -49 -50 -51 -52 -53 -54 -55
0.09/0.10	v -56 -57 -58 -59 -60 -61 -62 -63
0.09/0.10	v -64 65 -66 -67 -68 -69 -70 -71
0.09/0.10	v -72 -73 -74 -75 -76 -77 -78 -79
0.09/0.10	v -80 -81 -82 -83 -84 -85 86 -87
0.09/0.10	v -88 -89 -90 -91 -92 -93 -94 -95
0.09/0.10	v -96 -97 -98 -99 -100 -101 -102 -103
0.09/0.10	v -104 -105 -106 107 -108 -109 -110 -111
0.09/0.10	v -112 -113 -114 -115 -116 -117 -118 -119
0.09/0.10	v -120 -121 -122 -123 -124 -125 -126 -127
0.09/0.10	v 128 -129 -130 -131 -132 -133 -134 -135
0.09/0.10	v -136 -137 -138 -139 -140 -141 -142 -143
0.09/0.10	v -144 -145 -146 -147 -148 149 -150 -151
0.09/0.10	v -152 -153 -154 -155 -156 -157 -158 -159
0.09/0.10	v -160 -161 -162 -163 -164 -165 -166 -167
0.09/0.10	v -168 -169 170 -171 -172 -173 -174 -175
0.09/0.10	v -176 -177 -178 -179 -180 -181 -182 -183
0.09/0.10	v -184 -185 -186 -187 -188 -189 -190 191
0.09/0.10	v -192 -193 -194 -195 -196 -197 -198 -199
0.09/0.10	v -200 -201 -202 -203 -204 -205 -206 -207
0.09/0.10	v -208 -209 -210 -211 212 -213 -214 -215
0.09/0.10	v -216 -217 -218 -219 -220 -221 -222 -223
0.09/0.10	v -224 -225 -226 -227 -228 -229 -230 -231
0.09/0.10	v -232 233 -234 -235 -236 -237 -238 -239
0.09/0.10	v -240 -241 -242 -243 -244 -245 -246 -247
0.09/0.10	v -248 -249 -250 -251 -252 -253 254 -255
0.09/0.10	v -256 -257 -258 -259 -260 -261 -262 -263
0.09/0.10	v -264 -265 -266 -267 -268 -269 -270 -271
0.09/0.10	v -272 -273 -274 275 -276 -277 -278 -279
0.09/0.10	v -280 -281 -282 -283 -284 -285 -286 -287
0.09/0.10	v -288 -289 -290 -291 -292 -293 -294 -295
0.09/0.10	v 296 -297 -298 -299 -300 -301 -302 -303
0.09/0.10	v -304 -305 -306 -307 -308 -309 -310 -311
0.09/0.10	v -312 -313 -314 -315 -316 317 -318 -319
0.09/0.10	v -320 -321 -322 -323 -324 -325 -326 -327
0.09/0.10	v -328 -329 -330 -331 -332 -333 -334 -335
0.09/0.10	v -336 -337 338 -339 -340 -341 -342 -343
0.09/0.10	v -344 -345 -346 -347 -348 -349 -350 -351
0.09/0.10	v -352 -353 -354 -355 -356 -357 -358 359
0.09/0.10	v -360 -361 -362 -363 -364 -365 -366 -367
0.09/0.10	v -368 -369 -370 -371 -372 -373 -374 -375
0.09/0.10	v -376 -377 -378 -379 380 -381 -382 -383
0.09/0.10	v -384 -385 -386 -387 -388 -389 -390 -391
0.09/0.10	v -392 -393 -394 -395 -396 -397 -398 -399
0.09/0.10	v -400 401 -402 -403 -404 -405 -406 -407
0.09/0.10	v -408 -409 -410 -411 -412 -413 -414 -415
0.09/0.10	v -416 -417 -418
0.09/0.10	v 0
0.09/0.10	c
0.09/0.10	c 0 conflicts, 229 decisions, 1 random
0.09/0.10	c 0 iterations, 0 restarts, 0 skipped
0.09/0.10	c 0 enlarged, 0 shrunken, 0 rescored, 0 rebiased
0.09/0.10	c 1 simplifications, 0 reductions
0.09/0.10	c
0.09/0.10	c vars: 0 fixed, 0 equiv, 19 elim, 0 merged
0.09/0.10	c elim: 56943 resolutions, 1 phases, 1 rounds
0.09/0.10	c sbst: 100% substituted, 0.0% nots, 100.0% ands, 0.0% xors, 0.0% ites
0.09/0.10	c arty: 21.00 and 0.00 xor average arity
0.09/0.10	c prbe: 836 probed, 1 phases, 1 rounds
0.09/0.10	c prbe: 0 failed, 0 lifted, 0 merged
0.09/0.10	c sccs: 0 non trivial, 0 fixed, 0 merged
0.09/0.10	c hash: 0 units, 0 merged
0.09/0.10	c mins: 0 learned, 0% deleted, 0 strong, 0 depth
0.09/0.10	c subs: 0 forward, 0 backward, 0 doms
0.09/0.10	c strs: 0 forward, 0 backward
0.09/0.10	c doms: 0 dominators, 0 high, 0 low
0.09/0.10	c prps: 17537 propagations, 0.17 megaprops
0.09/0.10	c
0.09/0.10	c 0.1 seconds, 1 MB max, 0 MB recycled

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-1784310-1241934885/watcher-1784310-1241934885 -o /tmp/evaluation-result-1784310-1241934885/solver-1784310-1241934885 -C 5000 -W 6000 -M 1800 HOME/precosat HOME/instance-1784310-1241934885.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: 1.00 1.00 1.00 3/64 1370
/proc/meminfo: memFree=1732608/2055920 swapFree=4180800/4192956
[pid=1370] ppid=1368 vsize=1324 CPUtime=0
/proc/1370/stat : 1370 (precosat) R 1368 1370 1199 0 -1 4194304 226 0 0 0 0 0 0 0 18 0 1 0 221522451 1355776 211 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/1370/statm: 331 212 63 155 0 174 0

[startup+0.055006 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 1370
/proc/meminfo: memFree=1732608/2055920 swapFree=4180800/4192956
[pid=1370] ppid=1368 vsize=1700 CPUtime=0.05
/proc/1370/stat : 1370 (precosat) R 1368 1370 1199 0 -1 4194304 332 0 0 0 5 0 0 0 18 0 1 0 221522451 1740800 316 1992294400 134512640 135151029 4294956240 18446744073709551615 134573925 0 0 4096 17442 0 0 0 17 1 0 0
/proc/1370/statm: 425 316 79 155 0 268 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1700

[startup+0.102014 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 1370
/proc/meminfo: memFree=1732608/2055920 swapFree=4180800/4192956
[pid=1370] ppid=1368 vsize=1700 CPUtime=0.09
/proc/1370/stat : 1370 (precosat) R 1368 1370 1199 0 -1 4194304 332 0 0 0 9 0 0 0 18 0 1 0 221522451 1740800 316 1992294400 134512640 135151029 4294956240 18446744073709551615 134521504 0 0 4096 17442 0 0 0 17 1 0 0
/proc/1370/statm: 425 316 79 155 0 268 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1700

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

Child status: 10
Real time (s): 0.104755
CPU time (s): 0.103983
CPU user time (s): 0.101984
CPU system time (s): 0.001999
CPU usage (%): 99.2631
Max. virtual memory (cumulated for all children) (KiB): 1700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.101984
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= 333
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 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node4 at 2009-05-10 07:54:45
IDJOB=1784310
IDBENCH=71180
IDSOLVER=607
FILE ID=node4/1784310-1241934885
PBS_JOBID= 9264927
Free space on /tmp= 66200 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT09/CRAFTED/sgi/satsgi-n19himBHm22-p0-q181.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1784310-1241934885/watcher-1784310-1241934885 -o /tmp/evaluation-result-1784310-1241934885/solver-1784310-1241934885 -C 5000 -W 6000 -M 1800  HOME/precosat HOME/instance-1784310-1241934885.cnf

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

MD5SUM BENCH= dbe5f8e172b94635975a076b30fdb515
RANDOM SEED=1703276966

node4.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		: 3000.265
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		: 3000.265
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:       1733152 kB
Buffers:         30948 kB
Cached:         234544 kB
SwapCached:       5964 kB
Active:          76056 kB
Inactive:       197400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1733152 kB
SwapTotal:     4192956 kB
SwapFree:      4180800 kB
Dirty:             816 kB
Writeback:           0 kB
Mapped:          13556 kB
Slab:            35260 kB
Committed_AS:   898708 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= 66200 MiB
End job on node4 at 2009-05-10 07:54:45