Trace number 310584

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 0.181971 0.183596

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1788789488-19-SAT.cnf
MD5SUM8dd20c2b2815f1615e92da9f7d25dd5d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
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/310584-1172560336/kcnfs-2004   V. 03/02/12
0.00/0.00	c Input file : '/tmp/evaluation/310584-1172560336/instance-310584-1172560336.cnf'
0.10/0.18	c [630 variables, 2280 clauses, ratio 3.62, mean occ 5, 3-SAT]
0.10/0.18	s SATISFIABLE
0.10/0.18	v     5    70   182  -396   420
0.10/0.18	v   432  -439  -449  -578  -615
0.10/0.18	v   199  -521   133   303   626
0.10/0.18	v   460   630  -150  -628  -535
0.10/0.18	v  -468  -386    96   149  -237
0.10/0.18	v  -465  -269  -228   463   359
0.10/0.18	v    -8   411   -83  -253   341
0.10/0.18	v  -472  -394  -231   -19    41
0.10/0.18	v     7  -431  -225  -625   455
0.10/0.18	v   -43   623  -416   155   340
0.10/0.18	v   563   125   619   403  -627
0.10/0.18	v   170   350  -398   -69  -390
0.10/0.18	v  -380    62    98   324   218
0.10/0.18	v  -267   176   174   -67   301
0.10/0.18	v    -3    20   332   440  -438
0.10/0.18	v  -496  -565  -437   446    66
0.10/0.18	v  -289  -114    11  -450  -445
0.10/0.18	v   614    28  -412   297  -607
0.10/0.18	v  -478   261   167  -361   277
0.10/0.18	v    13  -281   375   349  -474
0.10/0.18	v   410   156   382   355  -479
0.10/0.18	v  -518   226  -175   484   351
0.10/0.18	v  -421   454   -26  -381   524
0.10/0.18	v   451  -366  -568    80    72
0.10/0.18	v  -601    87  -423   356   522
0.10/0.18	v   314   276  -280   546  -552
0.10/0.18	v   589   429   433  -577  -123
0.10/0.18	v    44   194   531    56    64
0.10/0.18	v   117  -385   -61   418  -470
0.10/0.18	v   528   487  -591   481  -447
0.10/0.18	v   151  -569  -284   343   227
0.10/0.18	v   553  -183  -469   560   185
0.10/0.18	v   404  -533   408     4   374
0.10/0.18	v  -213   -73  -580  -188   452
0.10/0.18	v   611  -606   -30  -310   395
0.10/0.18	v   338   -55  -352   629   293
0.10/0.18	v   -59   103   339   504   145
0.10/0.18	v    47  -307  -582   259   327
0.10/0.18	v  -328  -325  -379   486  -264
0.10/0.18	v   -71   241   -48  -430  -258
0.10/0.18	v  -157   622   121   373  -427
0.10/0.18	v  -505   140   586   236   148
0.10/0.18	v    50  -238   459  -392   163
0.10/0.18	v  -112  -475  -215   -57   443
0.10/0.18	v  -493  -473   306   240   187
0.10/0.18	v   590  -559   -92  -442    93
0.10/0.18	v  -223  -536  -201  -620  -232
0.10/0.18	v  -519  -537   138  -198  -204
0.10/0.18	v    63   260   499   219  -466
0.10/0.18	v  -498  -426    24  -311  -435
0.10/0.18	v  -323   612   285   -33   -78
0.10/0.18	v   370  -178   387   320  -458
0.10/0.18	v   -89   -68   205   538   230
0.10/0.18	v    18  -313     1  -509   542
0.10/0.18	v   272  -513   562   216   190
0.10/0.18	v  -331   326   248   294  -222
0.10/0.18	v  -239  -587  -345  -508   220
0.10/0.18	v  -122   462   599   502   597
0.10/0.18	v    40   -99  -203  -592  -247
0.10/0.18	v  -566  -137  -288   250  -604
0.10/0.18	v   -90    37   252  -229  -292
0.10/0.18	v  -127    95   362    25   330
0.10/0.18	v  -514   543  -193   154   296
0.10/0.18	v   120  -545   262  -616   347
0.10/0.18	v   571  -209   393   517   337
0.10/0.18	v   274   363   162  -171    49
0.10/0.18	v   191   515  -207  -530   212
0.10/0.18	v  -501  -402   273  -271   529
0.10/0.18	v   131  -482  -179   144  -233
0.10/0.18	v   -86   -97    79  -126  -453
0.10/0.18	v  -415   596  -367  -360   409
0.10/0.18	v   581  -512    16    12  -257
0.10/0.18	v  -291    31    65  -526   497
0.10/0.18	v    53   457  -548   251   603
0.10/0.18	v  -263   567   300   172   -52
0.10/0.18	v   428   358   290  -583   -54
0.10/0.18	v   490   -82   245  -165   388
0.10/0.18	v   585   595   334  -527    42
0.10/0.18	v    34   143   169   254  -286
0.10/0.18	v    22   319  -414   173  -461
0.10/0.18	v   441  -556   295  -321   541
0.10/0.18	v   555  -506   270  -342  -371
0.10/0.18	v   -74   588   550   407   139
0.10/0.18	v  -159  -507  -532   105  -189
0.10/0.18	v   147   333  -210   383   -85
0.10/0.18	v    39   574  -365  -246   110
0.10/0.18	v    51   419   547   384   346
0.10/0.18	v  -467   195   405  -368   575
0.10/0.18	v  -354   135  -540  -495  -101
0.10/0.18	v  -235  -434   317   564  -598
0.10/0.18	v   115  -181    29   136    35
0.10/0.18	v   109   279   206   299  -624
0.10/0.18	v  -613    -9  -180   544    23
0.10/0.18	v  -116   -76  -520   400  -570
0.10/0.18	v   278  -214   617   417  -557
0.10/0.18	v  -275  -283   369  -166   -45
0.10/0.18	v   471  -525   492  -406   146
0.10/0.18	v   573   308   485  -318   221
0.10/0.18	v    38   424  -594  -621   378
0.10/0.18	v   336  -558   602   -10   -81
0.10/0.18	v  -335   549   413   129    27
0.10/0.18	v  -600    17    -2   184  -134
0.10/0.18	v  -256   287  -152  -364   255
0.10/0.18	v  -266  -282   298   309   312
0.10/0.18	v   316   329  -344   348  -353
0.10/0.18	v  -357   389  -397   436  -444
0.10/0.18	v  -456  -464  -476   483  -488
0.10/0.18	v   491   500   503   511  -523
0.10/0.18	v   534   539  -561   605   608
0.10/0.18	v  -609   610  -618   244    14
0.10/0.18	v    15    21    32    36    58
0.10/0.18	v    60    88   -94   100   102
0.10/0.18	v   104   106   107   108   113
0.10/0.18	v  -118   119  -124  -130   132
0.10/0.18	v   141   142   153   160   161
0.10/0.18	v   164   177   186   197   200
0.10/0.18	v   211   217   224   242   243
0.10/0.18	v  -268   302   305   322  -372
0.10/0.18	v   376  -377  -399  -401   422
0.10/0.18	v   425  -448   516   554  -576
0.10/0.18	v  -593   -84     6    75   -91
0.10/0.18	v   128  -192  -196  -202  -208
0.10/0.18	v   234   249  -391   480   510
0.10/0.18	v   551  -477   111    77    46
0.10/0.18	v   265   489  -494   572   579
0.10/0.18	v  -584  -158   315  -304     0
0.10/0.18	c Computation time    : 0.170 seconds
0.10/0.18	c Execution time      : 0.170 seconds
0.10/0.18	c Size of search tree : 254 nodes
0.10/0.18

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/node39/watcher-310584-1172560336 -o ROOT/results/node39/solver-310584-1172560336 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/310584-1172560336/kcnfs-2004 /tmp/evaluation/310584-1172560336/instance-310584-1172560336.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: 0.85 0.95 0.98 3/64 28388
/proc/meminfo: memFree=1833144/2055920 swapFree=4161536/4192956
[pid=28388] ppid=28386 vsize=16216 CPUtime=0
/proc/28388/stat : 28388 (kcnfs-2004) R 28386 28388 27619 0 -1 0 148 0 0 0 0 0 0 0 18 0 1 0 275989582 16605184 128 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134614467 0 0 4096 0 0 0 0 17 1 0 0
/proc/28388/statm: 4060 133 38 107 0 3949 0

[startup+0.10775 s]
/proc/loadavg: 0.85 0.95 0.98 3/64 28388
/proc/meminfo: memFree=1833144/2055920 swapFree=4161536/4192956
[pid=28388] ppid=28386 vsize=16724 CPUtime=0.1
/proc/28388/stat : 28388 (kcnfs-2004) R 28386 28388 27619 0 -1 0 358 0 0 0 10 0 0 0 18 0 1 0 275989582 17125376 337 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134567812 0 0 4096 0 0 0 0 17 1 0 0
/proc/28388/statm: 4181 337 59 107 0 4070 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 16724

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

[startup+0.10775 s]
/proc/loadavg: 0.85 0.95 0.98 3/64 28388
/proc/meminfo: memFree=1833144/2055920 swapFree=4161536/4192956
[pid=28388] ppid=28386 vsize=16724 CPUtime=0.1
/proc/28388/stat : 28388 (kcnfs-2004) R 28386 28388 27619 0 -1 0 358 0 0 0 10 0 0 0 18 0 1 0 275989582 17125376 337 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134567812 0 0 4096 0 0 0 0 17 1 0 0
/proc/28388/statm: 4181 337 59 107 0 4070 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 16724

Child status: 10
Real time (s): 0.183596
CPU time (s): 0.181971
CPU user time (s): 0.177972
CPU system time (s): 0.003999
CPU usage (%): 99.1149
Max. virtual memory (cumulated for all children) (KiB): 16724

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.177972
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 366
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= 0

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Tue Feb 27 07:12:17 UTC 2007

IDJOB= 310584
IDBENCH= 20291
IDSOLVER= 114
FILE ID= node39/310584-1172560336

PBS_JOBID= 3971883

Free space on /tmp= 66556 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1788789488-19-SAT.cnf
COMMAND LINE= /tmp/evaluation/310584-1172560336/kcnfs-2004 /tmp/evaluation/310584-1172560336/instance-310584-1172560336.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-310584-1172560336 -o ROOT/results/node39/solver-310584-1172560336 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/310584-1172560336/kcnfs-2004 /tmp/evaluation/310584-1172560336/instance-310584-1172560336.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  8dd20c2b2815f1615e92da9f7d25dd5d

RANDOM SEED= 136873611

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node39.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		: 3000.285
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		: 3000.285
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:       1833488 kB
Buffers:         20356 kB
Cached:         131884 kB
SwapCached:      25852 kB
Active:          76592 kB
Inactive:       108080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1833488 kB
SwapTotal:     4192956 kB
SwapFree:      4161536 kB
Dirty:            3332 kB
Writeback:           0 kB
Mapped:          15212 kB
Slab:            23816 kB
Committed_AS:   655116 kB
PageTables:       1412 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= 66556 MiB

End job on node39 on Tue Feb 27 07:12:17 UTC 2007