Trace number 1734191

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
SAT4J CORE 2.1 RC1SAT 0.425934 0.362337

General information on the benchmark

NameCRAFTED/sgi/
satsgi-n17himBHm20-p0-q146.cnf
MD5SUMa888f7c11818f92eb0f40bc8ce26728a
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003998
Satisfiable
(Un)Satisfiability was proved
Number of variables340
Number of clauses5967
Sum of the clauses size12240
Maximum clause length20
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 25950
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 517

Solver Data 

0.08/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.08/0.14	c This is free software under the dual EPL/GNU LGPL licenses.
0.08/0.14	c See www.sat4j.org for details.
0.08/0.15	c version 2.1.0.v20090228
0.08/0.15	c sun.arch.data.model	32
0.08/0.15	c java.version	1.6.0_12
0.08/0.15	c os.name	Linux
0.08/0.15	c os.version	2.6.9-22.EL.rootsmp
0.08/0.15	c os.arch	i386
0.08/0.15	c Free memory 1651659224
0.08/0.15	c Max memory 1654456320
0.08/0.15	c Total memory 1654456320
0.08/0.15	c Number of processors 2
0.08/0.19	c c --- Begin Solver configuration ---
0.08/0.19	c Stops conflict analysis at the first Unique Implication Point
0.08/0.19	c org.sat4j.minisat.constraints.MixedDataStructureDanielWL@11b9fb1
0.08/0.19	c Limit learning to clauses of size smaller or equal to 10% of the number of variables
0.08/0.19	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.1 initConflictBound=100 
0.08/0.19	c VSIDS like heuristics from MiniSAT using a heap lightweight component caching from RSAT
0.08/0.19	c Expensive reason simplification
0.08/0.19	c Armin Biere (Picosat) restarts strategy
0.08/0.19	c timeout=2147483647s
0.08/0.19	c DB Simplification allowed=true
0.08/0.19	c --- End Solver configuration ---
0.08/0.19	c solving HOME/instance-1734191-1240795674.cnf
0.08/0.19	c reading problem ... 
0.35/0.32	c ... done. Wall clock time 0.122s.
0.35/0.32	c #vars     340
0.35/0.32	c #constraints  5967
0.35/0.32	c constraints type 
0.35/0.32	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 17
0.35/0.32	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 5950
0.35/0.33	c starts		: 1
0.35/0.33	c conflicts		: 0
0.35/0.33	c decisions		: 188
0.35/0.33	c propagations		: 340
0.35/0.33	c inspects		: 748
0.35/0.33	c learnt literals	: 0
0.35/0.33	c learnt binary clauses	: 0
0.35/0.33	c learnt ternary clauses	: 0
0.35/0.33	c learnt clauses	: 0
0.35/0.34	c ignored clauses	: 0
0.35/0.34	c root simplifications	: 1
0.35/0.34	c removed literals (reason simplification)	: 0
0.35/0.34	c reason swapping (by a shorter reason)	: 0
0.35/0.34	c Calls to reduceDB	: 0
0.35/0.34	c speed (assignments/second)	: 20000.0
0.35/0.34	c non guided choices	188
0.35/0.34	c learnt constraints type 
0.35/0.34	s SATISFIABLE
0.35/0.34	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 0
0.35/0.34	c Total wall clock time (in seconds) : 0.14

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-1734191-1240795674/watcher-1734191-1240795674 -o /tmp/evaluation-result-1734191-1240795674/solver-1734191-1240795674 -C 1200 -W 1800 -M 1800 --output-limit 1,15 java6 -server -Xms1600m -Xmx1600m -jar HOME/org.sat4j.core.jar HOME/instance-1734191-1240795674.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: 1.08 1.02 1.04 3/65 29197
/proc/meminfo: memFree=1493320/2055920 swapFree=4181412/4192956
[pid=29197] ppid=29195 vsize=152 CPUtime=0
/proc/29197/stat : 29197 (java6) D 29195 29197 28356 0 -1 0 41 0 0 0 0 0 0 0 20 0 1 0 107596303 155648 26 1992294400 134512640 134550932 4294956160 18446744073709551615 5714724 0 0 4096 0 0 0 0 17 1 0 0
/proc/29197/statm: 38 26 19 9 0 4 0

[startup+0.02065 s]
/proc/loadavg: 1.08 1.02 1.04 3/65 29197
/proc/meminfo: memFree=1493320/2055920 swapFree=4181412/4192956
[pid=29197] ppid=29195 vsize=13792 CPUtime=0
/proc/29197/stat : 29197 (java) S 29195 29197 28356 0 -1 0 930 0 1 0 0 0 0 0 18 0 2 0 107596303 14123008 685 1992294400 134512640 134550932 4294955984 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/29197/statm: 3448 685 349 9 0 1200 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 13792

[startup+0.104811 s]
/proc/loadavg: 1.08 1.02 1.04 3/65 29197
/proc/meminfo: memFree=1493320/2055920 swapFree=4181412/4192956
[pid=29197] ppid=29195 vsize=1780924 CPUtime=0.08
/proc/29197/stat : 29197 (java) S 29195 29197 28356 0 -1 0 3902 0 1 0 6 2 0 0 18 0 12 0 107596303 1823666176 3645 1992294400 134512640 134550932 4294955984 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/29197/statm: 445231 3645 1069 9 0 442578 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1780924

[startup+0.301857 s]
/proc/loadavg: 1.08 1.02 1.04 3/65 29197
/proc/meminfo: memFree=1493320/2055920 swapFree=4181412/4192956
[pid=29197] ppid=29195 vsize=1783684 CPUtime=0.35
/proc/29197/stat : 29197 (java) S 29195 29197 28356 0 -1 0 5222 0 1 0 32 3 0 0 18 0 12 0 107596303 1826492416 4959 1992294400 134512640 134550932 4294955984 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/29197/statm: 445921 4959 1367 9 0 443268 0
Current children cumulated CPU time (s) 0.35
Current children cumulated vsize (KiB) 1783684

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

Child status: 10
Real time (s): 0.362337
CPU time (s): 0.425934
CPU user time (s): 0.383941
CPU system time (s): 0.041993
CPU usage (%): 117.552
Max. virtual memory (cumulated for all children) (KiB): 1783684

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.383941
system time used= 0.041993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5350
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 166
involuntary context switches= 98

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node80 at 2009-04-27 03:27:54
IDJOB=1734191
IDBENCH=71186
IDSOLVER=500
FILE ID=node80/1734191-1240795674
PBS_JOBID= 9187325
Free space on /tmp= 66044 MiB

SOLVER NAME= SAT4J CORE  2.1 RC1
BENCH NAME= SAT09/CRAFTED/sgi/satsgi-n17himBHm20-p0-q146.cnf
COMMAND LINE= java6 -server -Xms1600m -Xmx1600m -jar HOME/org.sat4j.core.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1734191-1240795674/watcher-1734191-1240795674 -o /tmp/evaluation-result-1734191-1240795674/solver-1734191-1240795674 -C 1200 -W 1800 -M 1800 --output-limit 1,15  java6 -server -Xms1600m -Xmx1600m -jar HOME/org.sat4j.core.jar HOME/instance-1734191-1240795674.cnf

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

MD5SUM BENCH= a888f7c11818f92eb0f40bc8ce26728a
RANDOM SEED=829857736

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:       1493744 kB
Buffers:         54680 kB
Cached:         433472 kB
SwapCached:       5460 kB
Active:         251192 kB
Inactive:       244820 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1493744 kB
SwapTotal:     4192956 kB
SwapFree:      4181412 kB
Dirty:             712 kB
Writeback:           0 kB
Mapped:          13496 kB
Slab:            52028 kB
Committed_AS:   410420 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= 66044 MiB
End job on node80 at 2009-04-27 03:27:54