Trace number 310500

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, and are wall clock time (not CPU 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
KCNFS SMPSAT 0.207967 0.283763

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S2099846342-04-SAT.cnf
MD5SUM23ea53255de4a3778ef34ac8baaa8ebc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.056991
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/310500-1172560147/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.00	c Input file : '/tmp/evaluation/310500-1172560147/instance-310500-1172560147.cnf'
0.00/0.00	c [#vars: 630, #clauses: 2280 , (2-3)-CNF]
0.00/0.00	c unit clauses propagate before processing (#clause: 2280)
0.00/0.00	c estimated distribution: 8 tasks
0.00/0.06	c <7662> [PID]: 7664 7665 7666 7667 7668 7669 7670
0.00/0.28	c <7662> [PID]: 7671
0.00/0.28	c real distribution: 8 tasks
0.00/0.28	c <7662> [7664: SAT]
0.00/0.28	c <7662> [END]: 7665 7666 7667 7668 7669 7670 7671
0.00/0.28	s SATISFIABLE
0.00/0.28	v       -1       -2        3        4       -5       -6       -7
0.00/0.28	v       -8       -9       10      -11       12      -13      -14
0.00/0.28	v      -15       16      -17      -18       19       20       21
0.00/0.28	v      -22       23       24      -25       26      -27      -28
0.00/0.28	v       29      -30      -31      -32       33       34       35
0.00/0.28	v       36       37       38       39       40       41      -42
0.00/0.28	v      -43       44       45      -46      -47      -48       49
0.00/0.28	v       50      -51      -52       53      -54      -55      -56
0.00/0.28	v      -57       58       59       60      -61      -62       63
0.00/0.28	v       64      -65      -66      -67      -68      -69       70
0.00/0.28	v      -71       72      -73       74       75      -76      -77
0.00/0.28	v      -78       79      -80       81      -82       83       84
0.00/0.28	v      -85      -86       87       88      -89      -90       91
0.00/0.28	v      -92      -93       94       95       96       97       98
0.00/0.28	v       99      100      101     -102      103      104      105
0.00/0.28	v     -106      107      108      109     -110      111      112
0.00/0.28	v      113      114      115     -116      117      118      119
0.00/0.28	v      120      121      122      123     -124      125      126
0.00/0.28	v     -127     -128      129      130     -131     -132      133
0.00/0.28	v     -134      135      136     -137      138     -139      140
0.00/0.28	v      141      142      143      144      145     -146      147
0.00/0.28	v     -148     -149     -150      151      152     -153     -154
0.00/0.28	v      155      156      157      158      159     -160      161
0.00/0.28	v      162     -163     -164      165      166      167      168
0.00/0.28	v      169      170     -171     -172      173      174      175
0.00/0.28	v     -176     -177     -178     -179      180     -181      182
0.00/0.28	v     -183     -184      185      186     -187     -188      189
0.00/0.28	v      190      191     -192     -193      194      195     -196
0.00/0.28	v     -197     -198      199      200     -201     -202     -203
0.00/0.28	v     -204      205     -206      207     -208      209     -210
0.00/0.28	v      211      212     -213     -214      215      216      217
0.00/0.28	v     -218      219     -220      221      222     -223      224
0.00/0.28	v     -225     -226     -227      228     -229     -230     -231
0.00/0.28	v      232      233      234      235      236      237     -238
0.00/0.28	v     -239     -240      241     -242     -243      244      245
0.00/0.28	v      246     -247     -248     -249     -250     -251      252
0.00/0.28	v     -253     -254      255      256     -257     -258      259
0.00/0.28	v     -260     -261     -262      263      264      265      266
0.00/0.28	v      267     -268      269     -270     -271     -272     -273
0.00/0.28	v      274      275      276     -277     -278      279      280
0.00/0.28	v      281      282     -283     -284      285     -286      287
0.00/0.28	v      288     -289     -290      291     -292     -293      294
0.00/0.28	v     -295     -296     -297     -298      299      300      301
0.00/0.28	v     -302     -303     -304     -305      306      307     -308
0.00/0.28	v      309     -310      311     -312      313     -314      315
0.00/0.28	v     -316     -317     -318      319      320      321      322
0.00/0.28	v     -323     -324      325     -326      327     -328      329
0.00/0.28	v     -330      331      332     -333     -334     -335     -336
0.00/0.28	v     -337      338     -339      340     -341      342     -343
0.00/0.28	v      344     -345      346     -347      348     -349     -350
0.00/0.28	v      351     -352     -353     -354      355      356     -357
0.00/0.28	v     -358      359     -360      361     -362     -363     -364
0.00/0.28	v      365      366     -367      368      369      370      371
0.00/0.28	v     -372      373      374      375      376      377      378
0.00/0.28	v     -379      380     -381      382     -383     -384      385
0.00/0.28	v      386      387     -388      389      390      391      392
0.00/0.28	v     -393      394      395     -396      397      398      399
0.00/0.28	v      400     -401      402     -403     -404      405      406
0.00/0.28	v      407      408     -409      410     -411      412     -413
0.00/0.28	v     -414     -415     -416      417      418     -419      420
0.00/0.28	v      421     -422     -423      424     -425     -426     -427
0.00/0.28	v     -428      429     -430      431     -432     -433      434
0.00/0.28	v      435      436      437     -438      439     -440      441
0.00/0.28	v      442     -443     -444     -445     -446     -447      448
0.00/0.28	v      449      450      451     -452      453      454     -455
0.00/0.28	v     -456      457     -458      459     -460     -461      462
0.00/0.28	v     -463     -464      465     -466      467     -468      469
0.00/0.28	v      470      471     -472      473     -474      475     -476
0.00/0.28	v      477      478     -479      480      481      482      483
0.00/0.28	v     -484     -485      486     -487     -488      489      490
0.00/0.28	v      491     -492     -493     -494     -495      496      497
0.00/0.28	v      498      499      500      501      502     -503     -504
0.00/0.28	v      505      506      507     -508      509      510     -511
0.00/0.28	v     -512      513      514     -515      516      517     -518
0.00/0.28	v      519     -520      521     -522     -523     -524      525
0.00/0.28	v     -526     -527      528     -529     -530     -531      532
0.00/0.28	v     -533      534      535      536     -537      538     -539
0.00/0.28	v      540      541      542     -543      544      545      546
0.00/0.28	v     -547      548      549      550     -551     -552      553
0.00/0.28	v     -554      555     -556     -557     -558     -559     -560
0.00/0.28	v      561      562     -563      564      565      566      567
0.00/0.28	v      568     -569     -570     -571      572     -573     -574
0.00/0.28	v     -575     -576     -577      578      579      580      581
0.00/0.28	v     -582     -583      584     -585      586      587      588
0.00/0.28	v      589     -590     -591      592     -593     -594     -595
0.00/0.28	v      596      597      598      599     -600     -601     -602
0.00/0.28	v      603      604     -605      606     -607      608     -609
0.00/0.28	v     -610      611     -612      613     -614     -615     -616
0.00/0.28	v      617      618     -619     -620     -621      622      623
0.00/0.28	v     -624     -625      626     -627     -628      629      630
0.00/0.28	v        0
0.00/0.28	c CPU time            : 0.190 seconds
0.00/0.28	c Elapsed Time        : 0.277 seconds
0.00/0.28	c Size of search tree : 346 nodes
0.00/0.28	c average speed       : 1821.053 nodes/sec.
0.00/0.28

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node77/watcher-310500-1172560147 -o ROOT/results/node77/solver-310500-1172560147 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310500-1172560147/kcnfs-smp /tmp/evaluation/310500-1172560147/instance-310500-1172560147.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 1.00 1.00 3/67 7662
/proc/meminfo: memFree=1832888/2055892 swapFree=4086192/4096564
[pid=7662] ppid=7660 vsize=181044 CPUtime=0
/proc/7662/stat : 7662 (kcnfs-smp) R 7660 7662 7192 0 -1 4194304 159 0 0 0 0 0 0 0 20 0 1 0 50882262 185389056 145 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134541276 0 0 4096 0 0 0 0 17 1 0 0
/proc/7662/statm: 45261 146 51 160 0 45099 0

[startup+0.107468 s]
/proc/loadavg: 1.00 1.00 1.00 3/67 7662
/proc/meminfo: memFree=1832888/2055892 swapFree=4086192/4096564
[pid=7662] ppid=7660 vsize=181512 CPUtime=0
/proc/7662/stat : 7662 (kcnfs-smp) R 7660 7662 7192 0 -1 4194304 424 0 0 0 0 0 0 0 25 0 1 0 50882262 185868288 251 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 0 0 0
/proc/7662/statm: 45378 251 65 160 0 45216 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 181512

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

[startup+0.210487 s]
/proc/loadavg: 1.00 1.00 1.00 3/67 7662
/proc/meminfo: memFree=1832888/2055892 swapFree=4086192/4096564
[pid=7662] ppid=7660 vsize=181512 CPUtime=0
/proc/7662/stat : 7662 (kcnfs-smp) R 7660 7662 7192 0 -1 4194304 424 0 0 0 0 0 0 0 25 0 1 0 50882262 185868288 251 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 1 0 0
/proc/7662/statm: 45378 251 65 160 0 45216 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 181512

Child status: 10
Real time (s): 0.283763
CPU time (s): 0.207967
CPU user time (s): 0.205968
CPU system time (s): 0.001999
CPU usage (%): 73.2889
Max. virtual memory (cumulated for all children) (KiB): 181512

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.205968
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= 545
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= 16
involuntary context switches= 23

runsolver used 0.001999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node77 on Tue Feb 27 07:09:07 UTC 2007

IDJOB= 310500
IDBENCH= 20289
IDSOLVER= 112
FILE ID= node77/310500-1172560147

PBS_JOBID= 3971876

Free space on /tmp= 66647 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S2099846342-04-SAT.cnf
COMMAND LINE= /tmp/evaluation/310500-1172560147/kcnfs-smp /tmp/evaluation/310500-1172560147/instance-310500-1172560147.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node77/watcher-310500-1172560147 -o ROOT/results/node77/solver-310500-1172560147 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310500-1172560147/kcnfs-smp /tmp/evaluation/310500-1172560147/instance-310500-1172560147.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  23ea53255de4a3778ef34ac8baaa8ebc

RANDOM SEED= 388289983

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node77.alineos.net 2.6.9-34.ELsmp #1 SMP Thu Mar 9 06:23:23 GMT 2006 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.239
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	: 6006.15
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		: 3000.239
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055892 kB
MemFree:       1833360 kB
Buffers:         28228 kB
Cached:         149480 kB
SwapCached:       4056 kB
Active:          81340 kB
Inactive:       106552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1833360 kB
SwapTotal:     4096564 kB
SwapFree:      4086192 kB
Dirty:            3172 kB
Writeback:           0 kB
Mapped:          15356 kB
Slab:            21144 kB
Committed_AS:   112168 kB
PageTables:       1428 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66647 MiB

End job on node77 on Tue Feb 27 07:09:08 UTC 2007