Trace number 1734098

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 0.096984 0.097328

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 benchmark0.003999
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-1734098-1240795653.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
0.01/0.09	c s    0.1     7752     399      0     0     19       0      0    0.0   0    1
0.01/0.09	c l    0.1     7752     399      0     0     19       0   1000    0.0   0    1
0.01/0.09	c 1    0.1     7752     399      0     0     19       0      0  114.0   0    1
0.01/0.09	c
0.01/0.09	s SATISFIABLE
0.01/0.09	v 1 -2 -3 -4 -5 -6 -7
0.01/0.09	v -8 -9 -10 -11 -12 -13 -14 -15
0.01/0.09	v -16 -17 -18 -19 -20 -21 -22 -23
0.01/0.09	v -24 -25 -26 -27 -28 -29 -30 -31
0.01/0.09	v -32 -33 -34 -35 -36 -37 -38 -39
0.01/0.09	v -40 -41 -42 -43 44 -45 -46 -47
0.01/0.09	v -48 -49 -50 -51 -52 -53 -54 -55
0.01/0.09	v -56 -57 -58 -59 -60 -61 -62 -63
0.01/0.09	v -64 65 -66 -67 -68 -69 -70 -71
0.01/0.09	v -72 -73 -74 -75 -76 -77 -78 -79
0.01/0.09	v -80 -81 -82 -83 -84 -85 86 -87
0.01/0.09	v -88 -89 -90 -91 -92 -93 -94 -95
0.01/0.09	v -96 -97 -98 -99 -100 -101 -102 -103
0.01/0.09	v -104 -105 -106 107 -108 -109 -110 -111
0.01/0.09	v -112 -113 -114 -115 -116 -117 -118 -119
0.01/0.09	v -120 -121 -122 -123 -124 -125 -126 -127
0.01/0.09	v 128 -129 -130 -131 -132 -133 -134 -135
0.01/0.09	v -136 -137 -138 -139 -140 -141 -142 -143
0.01/0.09	v -144 -145 -146 -147 -148 149 -150 -151
0.01/0.09	v -152 -153 -154 -155 -156 -157 -158 -159
0.01/0.09	v -160 -161 -162 -163 -164 -165 -166 -167
0.01/0.09	v -168 -169 170 -171 -172 -173 -174 -175
0.01/0.09	v -176 -177 -178 -179 -180 -181 -182 -183
0.01/0.09	v -184 -185 -186 -187 -188 -189 -190 191
0.01/0.09	v -192 -193 -194 -195 -196 -197 -198 -199
0.01/0.09	v -200 -201 -202 -203 -204 -205 -206 -207
0.01/0.09	v -208 -209 -210 -211 212 -213 -214 -215
0.01/0.09	v -216 -217 -218 -219 -220 -221 -222 -223
0.01/0.09	v -224 -225 -226 -227 -228 -229 -230 -231
0.01/0.09	v -232 233 -234 -235 -236 -237 -238 -239
0.01/0.09	v -240 -241 -242 -243 -244 -245 -246 -247
0.01/0.09	v -248 -249 -250 -251 -252 -253 254 -255
0.01/0.09	v -256 -257 -258 -259 -260 -261 -262 -263
0.01/0.09	v -264 -265 -266 -267 -268 -269 -270 -271
0.01/0.09	v -272 -273 -274 275 -276 -277 -278 -279
0.01/0.09	v -280 -281 -282 -283 -284 -285 -286 -287
0.01/0.09	v -288 -289 -290 -291 -292 -293 -294 -295
0.01/0.09	v 296 -297 -298 -299 -300 -301 -302 -303
0.01/0.09	v -304 -305 -306 -307 -308 -309 -310 -311
0.01/0.09	v -312 -313 -314 -315 -316 317 -318 -319
0.01/0.09	v -320 -321 -322 -323 -324 -325 -326 -327
0.01/0.09	v -328 -329 -330 -331 -332 -333 -334 -335
0.01/0.09	v -336 -337 338 -339 -340 -341 -342 -343
0.01/0.09	v -344 -345 -346 -347 -348 -349 -350 -351
0.01/0.09	v -352 -353 -354 -355 -356 -357 -358 359
0.01/0.09	v -360 -361 -362 -363 -364 -365 -366 -367
0.01/0.09	v -368 -369 -370 -371 -372 -373 -374 -375
0.01/0.09	v -376 -377 -378 -379 380 -381 -382 -383
0.01/0.09	v -384 -385 -386 -387 -388 -389 -390 -391
0.01/0.09	v -392 -393 -394 -395 -396 -397 -398 -399
0.01/0.09	v -400 401 -402 -403 -404 -405 -406 -407
0.01/0.09	v -408 -409 -410 -411 -412 -413 -414 -415
0.01/0.09	v -416 -417 -418
0.01/0.09	v 0
0.01/0.09	c
0.01/0.09	c 0 conflicts, 229 decisions, 1 random
0.01/0.09	c 0 iterations, 0 restarts, 0 skipped
0.01/0.09	c 0 enlarged, 0 shrunken, 0 rescored, 0 rebiased
0.01/0.09	c 1 simplifications, 0 reductions
0.01/0.09	c
0.01/0.09	c vars: 0 fixed, 0 equiv, 19 elim, 0 merged
0.01/0.09	c elim: 56943 resolutions, 1 phases, 1 rounds
0.01/0.09	c sbst: 100% substituted, 0.0% nots, 100.0% ands, 0.0% xors, 0.0% ites
0.01/0.09	c arty: 21.00 and 0.00 xor average arity
0.01/0.09	c prbe: 836 probed, 1 phases, 1 rounds
0.01/0.09	c prbe: 0 failed, 0 lifted, 0 merged
0.01/0.09	c sccs: 0 non trivial, 0 fixed, 0 merged
0.01/0.09	c hash: 0 units, 0 merged
0.01/0.09	c mins: 0 learned, 0% deleted, 0 strong, 0 depth
0.01/0.09	c subs: 0 forward, 0 backward, 0 doms
0.01/0.09	c strs: 0 forward, 0 backward
0.01/0.09	c doms: 0 dominators, 0 high, 0 low
0.01/0.09	c prps: 17537 propagations, 0.18 megaprops
0.01/0.09	c
0.01/0.09	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-1734098-1240795653/watcher-1734098-1240795653 -o /tmp/evaluation-result-1734098-1240795653/solver-1734098-1240795653 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1734098-1240795653.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: 0.92 0.98 1.03 3/65 28636
/proc/meminfo: memFree=1502840/2055920 swapFree=4181412/4192956
[pid=28636] ppid=28634 vsize=1192 CPUtime=0
/proc/28636/stat : 28636 (precosat) R 28634 28636 28356 0 -1 4194304 188 0 0 0 0 0 0 0 21 0 1 0 107594283 1220608 173 1992294400 134512640 135151029 4294956224 18446744073709551615 134697845 0 0 4096 17442 0 0 0 17 1 0 0
/proc/28636/statm: 298 173 63 155 0 141 0

[startup+0.018968 s]
/proc/loadavg: 0.92 0.98 1.03 3/65 28636
/proc/meminfo: memFree=1502840/2055920 swapFree=4181412/4192956
[pid=28636] ppid=28634 vsize=1568 CPUtime=0.01
/proc/28636/stat : 28636 (precosat) R 28634 28636 28356 0 -1 4194304 318 0 0 0 1 0 0 0 21 0 1 0 107594283 1605632 302 1992294400 134512640 135151029 4294956224 18446744073709551615 134519116 0 0 4096 17442 0 0 0 17 1 0 0
/proc/28636/statm: 392 302 79 155 0 235 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1568

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

[startup+0.018968 s]
/proc/loadavg: 0.92 0.98 1.03 3/65 28636
/proc/meminfo: memFree=1502840/2055920 swapFree=4181412/4192956
[pid=28636] ppid=28634 vsize=1568 CPUtime=0.01
/proc/28636/stat : 28636 (precosat) R 28634 28636 28356 0 -1 4194304 318 0 0 0 1 0 0 0 21 0 1 0 107594283 1605632 302 1992294400 134512640 135151029 4294956224 18446744073709551615 134519116 0 0 4096 17442 0 0 0 17 1 0 0
/proc/28636/statm: 392 302 79 155 0 235 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1568

Child status: 10
Real time (s): 0.097328
CPU time (s): 0.096984
CPU user time (s): 0.092985
CPU system time (s): 0.003999
CPU usage (%): 99.6466
Max. virtual memory (cumulated for all children) (KiB): 1568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.092985
system time used= 0.003999
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 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node80 at 2009-04-27 03:27:33
IDJOB=1734098
IDBENCH=71180
IDSOLVER=507
FILE ID=node80/1734098-1240795653
PBS_JOBID= 9187325
Free space on /tmp= 66044 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-1734098-1240795653/watcher-1734098-1240795653 -o /tmp/evaluation-result-1734098-1240795653/solver-1734098-1240795653 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1734098-1240795653.cnf

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

MD5SUM BENCH= dbe5f8e172b94635975a076b30fdb515
RANDOM SEED=651663561

node80.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		: 3000.270
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		: 3000.270
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1503320 kB
Buffers:         53916 kB
Cached:         425736 kB
SwapCached:       5460 kB
Active:         237196 kB
Inactive:       250324 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1503320 kB
SwapTotal:     4192956 kB
SwapFree:      4181412 kB
Dirty:             808 kB
Writeback:           0 kB
Mapped:          13496 kB
Slab:            51056 kB
Committed_AS:   399584 kB
PageTables:       1384 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= 66040 MiB
End job on node80 at 2009-04-27 03:27:34