Trace number 298981

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 1.64475 1.64695

General information on the benchmark

Namerandom/OnTreshold/3SAT/v600/
unif-k3-r4.261-v600-c2556-S1982407920-12.SAT.shuffled.cnf
MD5SUMb02420eb242c9f0eb6d6be855d4eeabd
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.036993
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses2556
Sum of the clauses size7668
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32556
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	
0.00/0.01	c Computed by /tmp/evaluation/298981-1171863762/kcnfs-2004   V. 03/02/12
0.00/0.01	c Input file : '/tmp/evaluation/298981-1171863762/instance-298981-1171863762.cnf' (adding resolvants)
1.63/1.64	c [600 variables, 2556 clauses, ratio 4.26, mean occ 6, 3-SAT]
1.63/1.64	s SATISFIABLE
1.63/1.64	v   289   393   548   595   340
1.63/1.64	v  -575  -373   -87    11   302
1.63/1.64	v  -256   252  -423   -88  -122
1.63/1.64	v   194  -260   136  -133  -528
1.63/1.64	v   177   241  -272   -74  -537
1.63/1.64	v  -501   -27  -459   198   490
1.63/1.64	v    15   429  -484  -315  -379
1.63/1.64	v  -579  -427  -545  -343   386
1.63/1.64	v   105  -349    -2  -584  -117
1.63/1.64	v   246   582    57   417  -226
1.63/1.64	v  -385   316   422  -411   333
1.63/1.64	v   -46  -129   410  -118   360
1.63/1.64	v   -28  -400   -20  -224  -533
1.63/1.64	v   238   561   219   -54   569
1.63/1.64	v  -269  -497   144   408   292
1.63/1.64	v  -522  -556  -430   221  -157
1.63/1.64	v   239  -509   372   388   437
1.63/1.64	v   374   282   364  -299   130
1.63/1.64	v  -276  -228   209  -597   354
1.63/1.64	v  -334  -488   542  -358   -21
1.63/1.64	v   247  -286   539   216  -586
1.63/1.64	v  -204   414  -362    55  -234
1.63/1.64	v  -123  -412  -576  -476  -113
1.63/1.64	v  -147  -518  -551    83   594
1.63/1.64	v   311   201   491  -431  -102
1.63/1.64	v   169   359  -101   390  -268
1.63/1.64	v   589  -562  -306    52  -592
1.63/1.64	v  -512  -207   167  -492  -361
1.63/1.64	v   332   213   266   347   458
1.63/1.64	v  -465  -517   598  -240   277
1.63/1.64	v  -377   160  -463    48   442
1.63/1.64	v  -126   143   397   426  -453
1.63/1.64	v   317   215   186   428  -308
1.63/1.64	v   375   -17  -536   310  -151
1.63/1.64	v   168  -318  -348   135   174
1.63/1.64	v   450   280  -326   351  -398
1.63/1.64	v   182   139  -477   493   531
1.63/1.64	v   325   313   285  -549   572
1.63/1.64	v  -251    75  -515  -475   128
1.63/1.64	v  -554  -242  -235   335   424
1.63/1.64	v  -487  -508     3    51  -116
1.63/1.64	v   115   526   305   599  -457
1.63/1.64	v  -471  -550    47   114  -331
1.63/1.64	v  -585    35   328   524   189
1.63/1.64	v  -205  -341   -18    99   291
1.63/1.64	v   564  -469  -250    45   -26
1.63/1.64	v   -85  -261  -580  -146   156
1.63/1.64	v   433   287   543   -62  -290
1.63/1.64	v   107   -81  -421   448  -387
1.63/1.64	v   540   -29   -97  -474   367
1.63/1.64	v    93   535  -222  -438   447
1.63/1.64	v   -38   134   489   271  -395
1.63/1.64	v   574  -236     1   -72  -520
1.63/1.64	v  -110  -505   141   559   191
1.63/1.64	v  -558  -132   -80   591   502
1.63/1.64	v   -16   418   -41   312   195
1.63/1.64	v     5   330  -435  -345  -259
1.63/1.64	v  -436  -142  -214   -12  -498
1.63/1.64	v  -590  -154  -392   532  -534
1.63/1.64	v   521     9  -581  -355   190
1.63/1.64	v  -371  -529  -170   432  -324
1.63/1.64	v   202  -593   -39   263   486
1.63/1.64	v   370   513   503   402   270
1.63/1.64	v  -203  -164   258   231   249
1.63/1.64	v    95   100   -67   538   496
1.63/1.64	v   -82   -25   365  -159   309
1.63/1.64	v  -208  -217  -210   327  -112
1.63/1.64	v   -36  -567   109  -452   494
1.63/1.64	v   -65    90   254  -396  -161
1.63/1.64	v     8   485   516   420  -275
1.63/1.64	v   413   -58  -279    61  -192
1.63/1.64	v  -338  -460   307    13  -352
1.63/1.64	v   298   284    53   466  -300
1.63/1.64	v   382   255   -78  -183   445
1.63/1.64	v   405   444   455  -245    60
1.63/1.64	v  -262   218  -350   220  -103
1.63/1.64	v   353  -176   223   510  -121
1.63/1.64	v   560     4   320   600   178
1.63/1.64	v   511    40    37   336  -506
1.63/1.64	v   479   248   145   -14  -296
1.63/1.64	v  -342  -439  -233   180   140
1.63/1.64	v  -394   446   323   125  -583
1.63/1.64	v   319  -378   -64  -288   470
1.63/1.64	v   565   346  -441   369  -425
1.63/1.64	v  -596   212  -357   495   193
1.63/1.64	v   131   188   456   166   480
1.63/1.64	v   138   244  -461    43   184
1.63/1.64	v   588   514   391  -401   568
1.63/1.64	v  -267  -124     6  -449   153
1.63/1.64	v    23    19  -519  -230   557
1.63/1.64	v  -380  -399  -225   -31   -56
1.63/1.64	v   119  -573   587  -552    68
1.63/1.64	v  -525   454  -415   366  -451
1.63/1.64	v   108    66   104  -227  -314
1.63/1.64	v   211   546  -383  -368    98
1.63/1.64	v  -416   577  -478   171   483
1.63/1.64	v  -278  -149   294   -89  -301
1.63/1.64	v  -206    32   185  -553   419
1.63/1.64	v  -547   570  -173   -50   363
1.63/1.64	v   172   200    22    24   -34
1.63/1.64	v   -42    44   -59   -69    70
1.63/1.64	v    79   -84    92    -7   106
1.63/1.64	v  -120  -127  -137  -150  -152
1.63/1.64	v   158   165   179  -181  -187
1.63/1.64	v   196   197   199   229   237
1.63/1.64	v   243   253   264   265  -273
1.63/1.64	v   281  -283  -297  -303  -304
1.63/1.64	v  -322   337   344   356  -376
1.63/1.64	v   381  -389  -403   404  -406
1.63/1.64	v  -407   434   440   462   464
1.63/1.64	v  -467   468   472   473   481
1.63/1.64	v   500  -504  -507   527   530
1.63/1.64	v   541   544   555   563   566
1.63/1.64	v  -571   578   409  -155    10
1.63/1.64	v    49    63    76    77   -94
1.63/1.64	v    96   111   148   162  -163
1.63/1.64	v  -175   274   295   321   339
1.63/1.64	v   384   443   482   499   523
1.63/1.64	v   -30  -257   -33    71    73
1.63/1.64	v   -86    91   232   293   329
1.63/1.64	v     0
1.63/1.64	c Computation time    : 1.630 seconds
1.63/1.64	c Execution time      : 1.640 seconds
1.63/1.64	c Size of search tree : 2036 nodes
1.63/1.64

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/node10/watcher-298981-1171863762 -o ROOT/results/node10/solver-298981-1171863762 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/298981-1171863762/kcnfs-2004 /tmp/evaluation/298981-1171863762/instance-298981-1171863762.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
Using a pseudo terminal to collect output from the solver
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 28621
/proc/meminfo: memFree=1513952/2055920 swapFree=4192812/4192956
[pid=28621] ppid=28619 vsize=16112 CPUtime=0
/proc/28621/stat : 28621 (kcnfs-2004) R 28619 28621 26793 0 -1 0 117 0 0 0 0 0 0 0 18 0 1 0 206331174 16498688 97 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134630404 0 0 4096 0 0 0 0 17 1 0 0
/proc/28621/statm: 4029 98 38 107 0 3918 0

[startup+0.107601 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 28621
/proc/meminfo: memFree=1513952/2055920 swapFree=4192812/4192956
[pid=28621] ppid=28619 vsize=16936 CPUtime=0.1
/proc/28621/stat : 28621 (kcnfs-2004) R 28619 28621 26793 0 -1 0 393 0 0 0 10 0 0 0 18 0 1 0 206331174 17342464 372 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134544851 0 0 4096 0 0 0 0 17 1 0 0
/proc/28621/statm: 4234 372 60 107 0 4123 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 16936

[startup+0.515655 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 28621
/proc/meminfo: memFree=1513952/2055920 swapFree=4192812/4192956
[pid=28621] ppid=28619 vsize=16940 CPUtime=0.51
/proc/28621/stat : 28621 (kcnfs-2004) R 28619 28621 26793 0 -1 0 403 0 0 0 51 0 0 0 22 0 1 0 206331174 17346560 382 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134531323 0 0 4096 0 0 0 0 17 1 0 0
/proc/28621/statm: 4235 382 61 107 0 4124 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 16940

[startup+1.33577 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 28622
/proc/meminfo: memFree=1512600/2055920 swapFree=4192812/4192956
[pid=28621] ppid=28619 vsize=16940 CPUtime=1.33
/proc/28621/stat : 28621 (kcnfs-2004) R 28619 28621 26793 0 -1 0 403 0 0 0 133 0 0 0 25 0 1 0 206331174 17346560 382 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134577558 0 0 4096 0 0 0 0 17 1 0 0
/proc/28621/statm: 4235 382 61 107 0 4124 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 16940

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

[startup+1.64181 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 28622
/proc/meminfo: memFree=1512600/2055920 swapFree=4192812/4192956
[pid=28621] ppid=28619 vsize=16940 CPUtime=1.63
/proc/28621/stat : 28621 (kcnfs-2004) R 28619 28621 26793 0 -1 0 403 0 0 0 163 0 0 0 25 0 1 0 206331174 17346560 382 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528196 0 0 4096 0 0 0 0 17 1 0 0
/proc/28621/statm: 4235 382 61 107 0 4124 0
Current children cumulated CPU time (s) 1.63
Current children cumulated vsize (KiB) 16940

Child status: 10
Real time (s): 1.64695
CPU time (s): 1.64475
CPU user time (s): 1.64375
CPU system time (s): 0.000999
CPU usage (%): 99.8662
Max. virtual memory (cumulated for all children) (KiB): 16940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.64375
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 405
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= 34

runsolver used 0.001999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Mon Feb 19 05:42:42 UTC 2007

IDJOB= 298981
IDBENCH= 19999
IDSOLVER= 114
FILE ID= node10/298981-1171863762

PBS_JOBID= 3839398

Free space on /tmp= 66547 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v600/unif-k3-r4.261-v600-c2556-S1982407920-12.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298981-1171863762/kcnfs-2004 /tmp/evaluation/298981-1171863762/instance-298981-1171863762.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-298981-1171863762 -o ROOT/results/node10/solver-298981-1171863762 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/298981-1171863762/kcnfs-2004 /tmp/evaluation/298981-1171863762/instance-298981-1171863762.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  b02420eb242c9f0eb6d6be855d4eeabd

RANDOM SEED= 410635852

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node10.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		: 3000.232
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		: 3000.232
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:       1514360 kB
Buffers:         50212 kB
Cached:         375604 kB
SwapCached:          0 kB
Active:         258452 kB
Inactive:       212132 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1514360 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3340 kB
Writeback:           0 kB
Mapped:          63696 kB
Slab:            56448 kB
Committed_AS:  1196296 kB
PageTables:       1836 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= 66547 MiB

End job on node10 on Mon Feb 19 05:42:43 UTC 2007