Trace number 426984

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 2004SAT 0.220965 0.222797

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 benchmark0.025995
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/426984-1177831364/kcnfs-2004   V. 03/02/12
0.00/0.00	c Input file : '/tmp/evaluation/426984-1177831364/instance-426984-1177831364.cnf'
0.19/0.22	c [630 variables, 2280 clauses, ratio 3.62, mean occ 5, 3-SAT]
0.19/0.22	s SATISFIABLE
0.19/0.22	v   -13   235   346   475   588
0.19/0.22	v   441  -487   143   599   525
0.19/0.22	v   535  -278  -518  -333    38
0.19/0.22	v  -512   133  -227   592   103
0.19/0.22	v  -620  -563   207   400  -547
0.19/0.22	v  -472   141  -214  -177  -230
0.19/0.22	v  -460  -296   -11   -89   -67
0.19/0.22	v   540   108   437  -110  -179
0.19/0.22	v    95   604   501  -367   280
0.19/0.22	v   482  -116   256    45   483
0.19/0.22	v   -51  -537   -80   532   395
0.19/0.22	v    26  -284   155  -184   490
0.19/0.22	v    59   420   434   -22  -164
0.19/0.22	v   174   -71   406    -1   113
0.19/0.22	v   366   629   327   368   157
0.19/0.22	v  -358  -557  -171  -336  -485
0.19/0.22	v   319   205  -242   -93   199
0.19/0.22	v   507   299   170  -349    75
0.19/0.22	v  -139   630   158   169   340
0.19/0.22	v  -619  -335   209   115  -202
0.19/0.22	v   291    33  -461  -192   489
0.19/0.22	v  -350  -393   500   -46    96
0.19/0.22	v   123  -188  -433  -253  -573
0.19/0.22	v  -456  -560   288   274  -206
0.19/0.22	v    24   387  -293   -18  -362
0.19/0.22	v   408  -504    63   392   267
0.19/0.22	v    79   421   545  -607   287
0.19/0.22	v  -286  -364  -310  -508  -409
0.19/0.22	v   355    72  -360  -444  -582
0.19/0.22	v  -240  -446   -28  -231   497
0.19/0.22	v   -66  -248    -9   263   344
0.19/0.22	v   147    20  -134  -198  -124
0.19/0.22	v   -52   105   212  -268   195
0.19/0.22	v  -283  -624  -423   140  -413
0.19/0.22	v   517   264   519   528    34
0.19/0.22	v   -14  -533  -609   467   449
0.19/0.22	v  -302  -576  -524    -7  -149
0.19/0.22	v   568  -317  -341   471  -552
0.19/0.22	v   145  -384  -492  -203  -571
0.19/0.22	v   111  -404   100   550  -479
0.19/0.22	v   224    -5  -403  -238    99
0.19/0.22	v  -345   -76   478  -271   120
0.19/0.22	v   389    39   453  -352    41
0.19/0.22	v    53   322   348   180   -61
0.19/0.22	v  -426  -455   215   -30   -82
0.19/0.22	v   244  -419   470  -295   378
0.19/0.22	v   450   156   542    -8   424
0.19/0.22	v  -339  -616   510   233    44
0.19/0.22	v   608   234  -476  -601    21
0.19/0.22	v  -220  -303   186   377   435
0.19/0.22	v   513  -298   -69  -243  -153
0.19/0.22	v   572    49  -247   361  -591
0.19/0.22	v   579    -2    88   370  -445
0.19/0.22	v   505   338  -330  -585  -559
0.19/0.22	v  -273   536  -625  -316  -458
0.19/0.22	v  -430  -494  -503   394   514
0.19/0.22	v   -15  -260  -254   200   538
0.19/0.22	v   -85  -347  -401  -261  -463
0.19/0.22	v   265  -102   521  -357   -92
0.19/0.22	v   442   142  -474    19   603
0.19/0.22	v   237   544   436   190   -65
0.19/0.22	v   480  -628  -627     4  -318
0.19/0.22	v   219  -326   266    91    74
0.19/0.22	v   -27   -55   546   -73  -595
0.19/0.22	v  -530  -150   618   561  -554
0.19/0.22	v  -257   481   252   417   211
0.19/0.22	v   -68  -337   185  -353    23
0.19/0.22	v   375  -249  -577  -488   -54
0.19/0.22	v  -251   269  -183  -432  -575
0.19/0.22	v   306   491    58  -411  -428
0.19/0.22	v   589  -551  -213   584  -258
0.19/0.22	v   496   587  -427    37   549
0.19/0.22	v  -314  -305   313  -484  -262
0.19/0.22	v   245  -425   152  -270  -197
0.19/0.22	v   -48  -250   275  -447   175
0.19/0.22	v  -226  -539   216   285  -304
0.19/0.22	v  -511  -527    -6   369    98
0.19/0.22	v   356   104  -363   194   617
0.19/0.22	v  -334  -146   -77   -57  -297
0.19/0.22	v    94   161   136  -602  -438
0.19/0.22	v   398  -225   391  -422   459
0.19/0.22	v  -372  -308  -172   -32    83
0.19/0.22	v  -178  -531  -379  -523  -160
0.19/0.22	v   159   107   431  -354   374
0.19/0.22	v   311   626  -415   412  -468
0.19/0.22	v  -615   165   597   329  -193
0.19/0.22	v  -414   385  -416  -574   465
0.19/0.22	v   217   279  -323   397   429
0.19/0.22	v  -466   -78  -324   516   281
0.19/0.22	v  -154   -56  -493   -86   221
0.19/0.22	v    12    64   119   -25  -289
0.19/0.22	v  -187    35   -62  -522   -31
0.19/0.22	v   135  -495  -223  -556    50
0.19/0.22	v   390   371   117   410   232
0.19/0.22	v    60   114  -526   578   173
0.19/0.22	v  -520   307  -272  -600   342
0.19/0.22	v  -204   121   144   613    29
0.19/0.22	v  -583  -290  -127  -218   386
0.19/0.22	v  -201   462    70  -381   301
0.19/0.22	v   373   118   623  -137   565
0.19/0.22	v   191   112   -17   166   -43
0.19/0.22	v  -388   469   241   486  -590
0.19/0.22	v  -328   315   151   130   555
0.19/0.22	v   499  -148  -396  -605   365
0.19/0.22	v  -229  -181  -440  -558   382
0.19/0.22	v   -47  -529  -343   457   534
0.19/0.22	v   255   222  -543    16   109
0.19/0.22	v   586  -210   553   129    40
0.19/0.22	v     3   509   606   448   276
0.19/0.22	v  -594   138  -383  -292   502
0.19/0.22	v   567   451   168   611   320
0.19/0.22	v    81   -90   101   122   125
0.19/0.22	v  -128  -131  -132   162  -163
0.19/0.22	v   167  -176   182   189  -196
0.19/0.22	v  -208   228  -239   246   259
0.19/0.22	v  -277   282   294   300   309
0.19/0.22	v   321   325   332   351   359
0.19/0.22	v   380   399   402   407   418
0.19/0.22	v   439  -443  -452   454  -464
0.19/0.22	v   473   477   498   506  -515
0.19/0.22	v   541   548   562   564   566
0.19/0.22	v  -569  -570   580   581  -593
0.19/0.22	v   596   598  -610  -612  -614
0.19/0.22	v  -621   622    10    36   -42
0.19/0.22	v    84    87    97  -106   126
0.19/0.22	v   236  -312   331   376   405
0.19/0.22	v     0
0.19/0.22	c Computation time    : 0.210 seconds
0.19/0.22	c Execution time      : 0.210 seconds
0.19/0.22	c Size of search tree : 339 nodes
0.19/0.22

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node60/watcher-426984-1177831364 -o ROOT/results/node60/solver-426984-1177831364 -C 5000 -W 7500 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/426984-1177831364/kcnfs-2004 /tmp/evaluation/426984-1177831364/instance-426984-1177831364.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): 7500 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
Using a pseudo terminal to collect output from the solver
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.87 0.95 0.98 4/64 20311
/proc/meminfo: memFree=1591056/2055920 swapFree=4183288/4192956
[pid=20311] ppid=20309 vsize=16160 CPUtime=0
/proc/20311/stat : 20311 (kcnfs-2004) R 20309 20311 20221 0 -1 0 132 0 0 0 0 0 0 0 18 0 1 0 231046342 16547840 114 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134614467 0 0 4096 0 0 0 0 17 1 0 0
/proc/20311/statm: 4045 119 38 107 0 3934 0

[startup+0.0388669 s]
/proc/loadavg: 0.87 0.95 0.98 4/64 20311
/proc/meminfo: memFree=1591056/2055920 swapFree=4183288/4192956
[pid=20311] ppid=20309 vsize=16724 CPUtime=0.03
/proc/20311/stat : 20311 (kcnfs-2004) R 20309 20311 20221 0 -1 0 356 0 0 0 3 0 0 0 18 0 1 0 231046342 17125376 336 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134531343 0 0 4096 0 0 0 0 17 1 0 0
/proc/20311/statm: 4181 336 59 107 0 4070 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 16724

[startup+0.101871 s]
/proc/loadavg: 0.87 0.95 0.98 4/64 20311
/proc/meminfo: memFree=1591056/2055920 swapFree=4183288/4192956
[pid=20311] ppid=20309 vsize=16724 CPUtime=0.09
/proc/20311/stat : 20311 (kcnfs-2004) R 20309 20311 20221 0 -1 0 357 0 0 0 9 0 0 0 18 0 1 0 231046342 17125376 337 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134583465 0 0 4096 0 0 0 0 17 1 0 0
/proc/20311/statm: 4181 337 59 107 0 4070 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16724

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

[startup+0.201881 s]
/proc/loadavg: 0.87 0.95 0.98 4/64 20311
/proc/meminfo: memFree=1591056/2055920 swapFree=4183288/4192956
[pid=20311] ppid=20309 vsize=16724 CPUtime=0.19
/proc/20311/stat : 20311 (kcnfs-2004) R 20309 20311 20221 0 -1 0 357 0 0 0 19 0 0 0 19 0 1 0 231046342 17125376 337 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134529754 0 0 4096 0 0 0 0 17 1 0 0
/proc/20311/statm: 4181 337 59 107 0 4070 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 16724

Child status: 10
Real time (s): 0.222797
CPU time (s): 0.220965
CPU user time (s): 0.218966
CPU system time (s): 0.001999
CPU usage (%): 99.1778
Max. virtual memory (cumulated for all children) (KiB): 16724

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.218966
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= 361
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= 1

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node60 on Sun Apr 29 07:22:44 UTC 2007

IDJOB= 426984
IDBENCH= 20289
IDSOLVER= 194
FILE ID= node60/426984-1177831364

PBS_JOBID= 4718297

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2004
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/426984-1177831364/kcnfs-2004 /tmp/evaluation/426984-1177831364/instance-426984-1177831364.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-426984-1177831364 -o ROOT/results/node60/solver-426984-1177831364 -C 5000 -W 7500 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/426984-1177831364/kcnfs-2004 /tmp/evaluation/426984-1177831364/instance-426984-1177831364.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  23ea53255de4a3778ef34ac8baaa8ebc

RANDOM SEED= 390452768

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node60.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		: 3000.214
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		: 3000.214
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:       1591464 kB
Buffers:         44000 kB
Cached:         340944 kB
SwapCached:       3744 kB
Active:         211604 kB
Inactive:       182952 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1591464 kB
SwapTotal:     4192956 kB
SwapFree:      4183288 kB
Dirty:            3180 kB
Writeback:           0 kB
Mapped:          15560 kB
Slab:            55880 kB
Committed_AS:  2612896 kB
PageTables:       1464 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= 66561 MiB

End job on node60 on Sun Apr 29 07:22:44 UTC 2007