Trace number 300005

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 2006SAT 1.74073 1.74396

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S1561551265-12.SAT.shuffled.cnf
MD5SUMc6a09cb4dcbc2624dfe4aaec1f040fa6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005998
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1704
Sum of the clauses size5112
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31704
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/300005-1171880704/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.00	c Input file : '/tmp/evaluation/300005-1171880704/instance-300005-1171880704.cnf'
0.00/0.00	c [#vars: 400, #clauses: 1704 -> 1781 clauses (pre-processing), 3-CNF]
0.00/0.01	c unit clauses propagate before processing (#clause: 1781)
1.64/1.73	c BSH-propagate until depth 1 (fix point: 6 updates) 
1.64/1.73	s SATISFIABLE
1.64/1.73	v       -1        2        3       -4       -5        6        7
1.64/1.73	v       -8        9      -10      -11      -12      -13      -14
1.64/1.73	v       15      -16       17      -18       19       20      -21
1.64/1.73	v      -22       23       24       25       26      -28       29
1.64/1.73	v      -30       31      -32       33       34      -35      -36
1.64/1.73	v      -37       38      -39      -40      -41       42       43
1.64/1.73	v       44      -45      -46       47      -48       49       50
1.64/1.73	v      -51       52       53       54       55      -56       57
1.64/1.73	v       58       59       60       61      -62       63      -64
1.64/1.73	v       65       66       67       68      -69       70      -71
1.64/1.73	v       72      -73      -74       75       76      -77       78
1.64/1.73	v       79       80      -81       82      -83       84       85
1.64/1.73	v      -86       87       88      -89       90       91       92
1.64/1.73	v       93       94      -95      -96       97       98      -99
1.64/1.73	v      100     -101     -102     -103     -104     -105     -106
1.64/1.73	v      107      108     -109      110      111     -112     -113
1.64/1.73	v      114      115     -116      117      118      119     -120
1.64/1.73	v     -121     -122     -123      124     -125      126      127
1.64/1.73	v     -128     -129      130      131     -132     -133      134
1.64/1.73	v     -135     -136     -137     -138      139     -140      141
1.64/1.73	v     -142     -143      144     -145      146      147     -148
1.64/1.73	v      149      150      151      152      153      154      155
1.64/1.73	v      156      157      158     -159     -160     -161     -162
1.64/1.73	v     -163      164      165      166     -167      168      169
1.64/1.73	v     -170      171      172     -173     -174     -175      176
1.64/1.73	v      177     -178      179     -180      181     -182      183
1.64/1.73	v      184      185      186     -187      188     -189     -190
1.64/1.73	v      191      192      193      194      195      196     -197
1.64/1.73	v     -198     -199     -200      201      202     -203     -204
1.64/1.73	v      205     -206     -207     -208      209     -210      211
1.64/1.73	v      212      213      214      215      216     -217      218
1.64/1.73	v      219     -220     -221     -222      223      224      225
1.64/1.73	v      226     -227     -228      229      230     -231     -232
1.64/1.73	v      233     -234      235     -236      237      238     -239
1.64/1.73	v     -240      241     -242      243      244      245     -246
1.64/1.73	v      247     -248      249     -250     -251      252     -253
1.64/1.73	v      254      255      256     -257      258      259      260
1.64/1.73	v     -261     -262      263     -264     -265     -266      267
1.64/1.73	v     -268      269     -270     -271      272     -273     -274
1.64/1.73	v      275     -276     -277      278     -279     -280      281
1.64/1.73	v     -282      283     -284      285      286      287     -288
1.64/1.73	v     -289      290     -291      292     -293     -294      295
1.64/1.73	v     -296      297     -298      299     -300      301      302
1.64/1.73	v     -303     -304     -305      306      307      308     -309
1.64/1.73	v      310     -311      312     -313      314      315      316
1.64/1.73	v      317      318      319      320      321     -322      323
1.64/1.73	v     -324     -325      326      327     -328      329     -330
1.64/1.73	v     -331      332     -333      334     -335      336      337
1.64/1.73	v     -338      339     -340      341     -342     -343     -344
1.64/1.73	v      345     -346     -347     -348      349     -350      351
1.64/1.73	v      352      353      354      355      356     -357     -358
1.64/1.73	v     -359     -360      361      362      363      364      365
1.64/1.73	v     -366     -367     -368      369     -370     -371     -372
1.64/1.73	v      373     -374     -375      376     -377      378     -379
1.64/1.73	v      380      381     -382      383     -384      385     -386
1.64/1.73	v     -387      388      389     -390      391     -392      393
1.64/1.73	v     -394      395     -396      397      398     -399     -400
1.64/1.73	v        0
1.64/1.73	c Computation time     : 1.730 seconds
1.64/1.73	c Execution time       : 1.730 seconds
1.64/1.73	c Size of search tree  : 3068 nodes
1.64/1.73	c average speed        : 1773.410 nodes/sec.
1.64/1.73

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/node13/watcher-300005-1171880704 -o ROOT/results/node13/solver-300005-1171880704 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/300005-1171880704/kcnfs-2006 /tmp/evaluation/300005-1171880704/instance-300005-1171880704.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: 0.88 0.95 0.99 3/77 27729
/proc/meminfo: memFree=782584/2055920 swapFree=4192812/4192956
[pid=27729] ppid=27727 vsize=181840 CPUtime=0
/proc/27729/stat : 27729 (kcnfs-2006) R 27727 27729 27348 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 208024868 186204160 122 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134717892 0 0 4096 0 0 0 0 17 1 0 0
/proc/27729/statm: 45460 122 49 158 0 45300 0

[startup+0.10722 s]
/proc/loadavg: 0.88 0.95 0.99 3/77 27729
/proc/meminfo: memFree=782584/2055920 swapFree=4192812/4192956
[pid=27729] ppid=27727 vsize=182440 CPUtime=0.1
/proc/27729/stat : 27729 (kcnfs-2006) R 27727 27729 27348 0 -1 4194304 301 0 0 0 10 0 0 0 18 0 1 0 208024868 186818560 285 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134572204 0 0 4096 0 0 0 0 17 1 0 0
/proc/27729/statm: 45610 285 75 158 0 45450 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 182440

[startup+0.516275 s]
/proc/loadavg: 0.88 0.95 0.99 3/77 27729
/proc/meminfo: memFree=782584/2055920 swapFree=4192812/4192956
[pid=27729] ppid=27727 vsize=182440 CPUtime=0.51
/proc/27729/stat : 27729 (kcnfs-2006) R 27727 27729 27348 0 -1 4194304 301 0 0 0 51 0 0 0 21 0 1 0 208024868 186818560 285 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134571669 0 0 4096 0 0 0 0 17 1 0 0
/proc/27729/statm: 45610 285 75 158 0 45450 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 182440

[startup+1.34238 s]
/proc/loadavg: 0.88 0.95 0.99 2/78 27730
/proc/meminfo: memFree=781552/2055920 swapFree=4192812/4192956
[pid=27729] ppid=27727 vsize=182440 CPUtime=1.34
/proc/27729/stat : 27729 (kcnfs-2006) R 27727 27729 27348 0 -1 4194304 301 0 0 0 134 0 0 0 25 0 1 0 208024868 186818560 285 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134593185 0 0 4096 0 0 0 0 17 1 0 0
/proc/27729/statm: 45610 285 75 158 0 45450 0
Current children cumulated CPU time (s) 1.34
Current children cumulated vsize (KiB) 182440

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

[startup+1.64842 s]
/proc/loadavg: 0.88 0.95 0.99 2/78 27730
/proc/meminfo: memFree=781552/2055920 swapFree=4192812/4192956
[pid=27729] ppid=27727 vsize=182440 CPUtime=1.64
/proc/27729/stat : 27729 (kcnfs-2006) R 27727 27729 27348 0 -1 4194304 301 0 0 0 164 0 0 0 25 0 1 0 208024868 186818560 285 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134675188 0 0 4096 0 0 0 0 17 1 0 0
/proc/27729/statm: 45610 285 75 158 0 45450 0
Current children cumulated CPU time (s) 1.64
Current children cumulated vsize (KiB) 182440

Child status: 10
Real time (s): 1.74396
CPU time (s): 1.74073
CPU user time (s): 1.73773
CPU system time (s): 0.002999
CPU usage (%): 99.8149
Max. virtual memory (cumulated for all children) (KiB): 182440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.73773
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 312
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= 8
involuntary context switches= 36

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Mon Feb 19 10:25:04 UTC 2007

IDJOB= 300005
IDBENCH= 20024
IDSOLVER= 113
FILE ID= node13/300005-1171880704

PBS_JOBID= 3839439

Free space on /tmp= 66545 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S1561551265-12.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/300005-1171880704/kcnfs-2006 /tmp/evaluation/300005-1171880704/instance-300005-1171880704.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-300005-1171880704 -o ROOT/results/node13/solver-300005-1171880704 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/300005-1171880704/kcnfs-2006 /tmp/evaluation/300005-1171880704/instance-300005-1171880704.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  c6a09cb4dcbc2624dfe4aaec1f040fa6

RANDOM SEED= 595108447

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node13.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 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		: 3000.236
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		: 3000.236
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:        782992 kB
Buffers:         71020 kB
Cached:        1065872 kB
SwapCached:          0 kB
Active:         616560 kB
Inactive:       574688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        782992 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3324 kB
Writeback:           0 kB
Mapped:          73220 kB
Slab:            67288 kB
Committed_AS:   917184 kB
PageTables:       1744 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= 66545 MiB

End job on node13 on Mon Feb 19 10:25:06 UTC 2007