Trace number 426766

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 2.17267 2.17451

General information on the benchmark

Namerandom/OnTreshold/3SAT/v450/
unif-k3-r4.25-v450-c1912-S1113882813-11.SAT.shuffled.cnf
MD5SUM77226f3880fdc77b8d075583e32b35e0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.023995
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of clauses1912
Sum of the clauses size5736
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31912
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/426766-1177828977/kcnfs-2004   V. 03/02/12
0.00/0.01	c Input file : '/tmp/evaluation/426766-1177828977/instance-426766-1177828977.cnf' (adding resolvants)
2.10/2.17	c [450 variables, 1912 clauses, ratio 4.25, mean occ 6, 3-SAT]
2.10/2.17	s SATISFIABLE
2.10/2.17	v   -48   104  -406  -230   307
2.10/2.17	v   255   181  -425   -99   353
2.10/2.17	v   267   -30  -234    74   250
2.10/2.17	v   184   421  -144   115   249
2.10/2.17	v   393   346  -201    26  -239
2.10/2.17	v  -390  -380  -373    40   142
2.10/2.17	v   246   256  -238  -148   298
2.10/2.17	v   -86   233   -63  -217  -137
2.10/2.17	v  -208    93  -429  -204   311
2.10/2.17	v   -85   244  -389  -106  -275
2.10/2.17	v  -166   -49   449    34   284
2.10/2.17	v   200   405   -20  -167   165
2.10/2.17	v   174     9    57   -78  -379
2.10/2.17	v  -372   145   340   215   404
2.10/2.17	v  -241   356   274    41   -53
2.10/2.17	v  -127  -285  -337  -136   205
2.10/2.17	v    62    72  -265     2   262
2.10/2.17	v   266   162  -197  -273   235
2.10/2.17	v    92  -344   341   203  -391
2.10/2.17	v    61   229  -120   -52   295
2.10/2.17	v  -413     3   -65   248  -374
2.10/2.17	v   160     1   192   225   161
2.10/2.17	v   397    81  -185  -378   347
2.10/2.17	v  -118   -68  -212   -28  -424
2.10/2.17	v  -124   302    75   440  -331
2.10/2.17	v  -300   336    22   301   360
2.10/2.17	v   264    73    90   384   130
2.10/2.17	v   385   438    42   354   324
2.10/2.17	v   -33   -11   221   330   387
2.10/2.17	v   294   177   442  -113   232
2.10/2.17	v   -19  -257   254   322   416
2.10/2.17	v   304   -35  -422  -386   299
2.10/2.17	v   308    77  -441  -371  -415
2.10/2.17	v   328   293  -363   359  -398
2.10/2.17	v  -407   436    17   -59  -317
2.10/2.17	v   431    56  -271  -420    46
2.10/2.17	v   361  -388  -219    14   411
2.10/2.17	v  -178   100   270    94   286
2.10/2.17	v  -117   268  -231   220   132
2.10/2.17	v   169  -214   280   -89  -435
2.10/2.17	v   -79   297  -430  -253  -312
2.10/2.17	v  -110  -444  -156   329   146
2.10/2.17	v  -260  -419    36  -141   131
2.10/2.17	v   287  -318    38   -21   332
2.10/2.17	v    69    39    71    95   403
2.10/2.17	v  -164   334  -327   175   -23
2.10/2.17	v   183    51   399   -15  -140
2.10/2.17	v  -370  -119   306   366   335
2.10/2.17	v   394   123  -291   139  -292
2.10/2.17	v  -383  -314  -365   426   105
2.10/2.17	v   -55   395    60   443   -98
2.10/2.17	v    -8  -357  -414  -367   135
2.10/2.17	v   195   218   433  -186   315
2.10/2.17	v   427  -290  -188   147   326
2.10/2.17	v   412   227   342   121  -338
2.10/2.17	v  -173  -303   358  -428  -199
2.10/2.17	v  -176   450   108  -320    12
2.10/2.17	v   279   122   216   289   272
2.10/2.17	v  -158  -134  -277  -375     7
2.10/2.17	v   163   446  -401  -243  -193
2.10/2.17	v    54   -29  -348   278   263
2.10/2.17	v   179  -236  -310  -409  -191
2.10/2.17	v  -247    50  -171   283  -355
2.10/2.17	v   282   -24   288  -447   129
2.10/2.17	v   -18   196   -88   445   189
2.10/2.17	v   352  -259   437   -58   133
2.10/2.17	v  -102  -345   339   305    10
2.10/2.17	v  -276  -155  -343   434  -316
2.10/2.17	v   -76  -159   269   109   187
2.10/2.17	v  -107  -368  -224  -202   -25
2.10/2.17	v    64  -170  -319   168    91
2.10/2.17	v  -237   -47   252   -80    -5
2.10/2.17	v  -396  -223  -138   242  -149
2.10/2.17	v  -182   382   -87  -114  -439
2.10/2.17	v   -27   381    83   240   362
2.10/2.17	v    84   211    16  -103   325
2.10/2.17	v   309   -31   172    97   180
2.10/2.17	v  -418   -43   350  -251  -313
2.10/2.17	v   364  -408   410   423  -432
2.10/2.17	v   448  -206     4     6    32
2.10/2.17	v    37    44    66    67    70
2.10/2.17	v    82    96   101   116   125
2.10/2.17	v  -126  -128   143   150   152
2.10/2.17	v   153   157  -190  -194   198
2.10/2.17	v   207   209  -210   213   222
2.10/2.17	v   226   228   245  -258   261
2.10/2.17	v   281   296  -321   323   333
2.10/2.17	v   349   351   369   376   377
2.10/2.17	v   392   400  -402   417   -13
2.10/2.17	v  -111     0
2.10/2.17	c Computation time    : 2.160 seconds
2.10/2.17	c Execution time      : 2.170 seconds
2.10/2.17	c Size of search tree : 3820 nodes
2.10/2.17

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/node24/watcher-426766-1177828977 -o ROOT/results/node24/solver-426766-1177828977 -C 5000 -W 7500 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/426766-1177828977/kcnfs-2004 /tmp/evaluation/426766-1177828977/instance-426766-1177828977.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: 0.84 0.94 0.98 3/77 9415
/proc/meminfo: memFree=1467392/2055920 swapFree=4143384/4192956
[pid=9415] ppid=9413 vsize=16668 CPUtime=0
/proc/9415/stat : 9415 (kcnfs-2004) R 9413 9415 8906 0 -1 0 227 0 0 0 0 0 0 0 18 0 1 0 230815696 17068032 207 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134522559 0 0 4096 0 0 0 0 17 0 0 0
/proc/9415/statm: 4168 208 40 107 0 4057 0

[startup+0.0696891 s]
/proc/loadavg: 0.84 0.94 0.98 3/77 9415
/proc/meminfo: memFree=1467392/2055920 swapFree=4143384/4192956
[pid=9415] ppid=9413 vsize=16736 CPUtime=0.06
/proc/9415/stat : 9415 (kcnfs-2004) R 9413 9415 8906 0 -1 0 337 0 0 0 6 0 0 0 18 0 1 0 230815696 17137664 317 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134555357 0 0 4096 0 0 0 0 17 0 0 0
/proc/9415/statm: 4184 317 61 107 0 4073 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16736

[startup+0.101693 s]
/proc/loadavg: 0.84 0.94 0.98 3/77 9415
/proc/meminfo: memFree=1467392/2055920 swapFree=4143384/4192956
[pid=9415] ppid=9413 vsize=16736 CPUtime=0.09
/proc/9415/stat : 9415 (kcnfs-2004) R 9413 9415 8906 0 -1 0 340 0 0 0 9 0 0 0 18 0 1 0 230815696 17137664 320 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134577592 0 0 4096 0 0 0 0 17 0 0 0
/proc/9415/statm: 4184 320 61 107 0 4073 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16736

[startup+0.301714 s]
/proc/loadavg: 0.84 0.94 0.98 3/77 9415
/proc/meminfo: memFree=1467392/2055920 swapFree=4143384/4192956
[pid=9415] ppid=9413 vsize=16736 CPUtime=0.29
/proc/9415/stat : 9415 (kcnfs-2004) R 9413 9415 8906 0 -1 0 340 0 0 0 29 0 0 0 19 0 1 0 230815696 17137664 320 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134577717 0 0 4096 0 0 0 0 17 0 0 0
/proc/9415/statm: 4184 320 61 107 0 4073 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16736

[startup+0.701757 s]
/proc/loadavg: 0.84 0.94 0.98 3/77 9415
/proc/meminfo: memFree=1467392/2055920 swapFree=4143384/4192956
[pid=9415] ppid=9413 vsize=16736 CPUtime=0.69
/proc/9415/stat : 9415 (kcnfs-2004) R 9413 9415 8906 0 -1 0 340 0 0 0 69 0 0 0 23 0 1 0 230815696 17137664 320 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528651 0 0 4096 0 0 0 0 17 0 0 0
/proc/9415/statm: 4184 320 61 107 0 4073 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16736

[startup+1.50184 s]
/proc/loadavg: 0.84 0.94 0.98 2/78 9416
/proc/meminfo: memFree=1466296/2055920 swapFree=4143384/4192956
[pid=9415] ppid=9413 vsize=16736 CPUtime=1.49
/proc/9415/stat : 9415 (kcnfs-2004) R 9413 9415 8906 0 -1 0 340 0 0 0 149 0 0 0 25 0 1 0 230815696 17137664 320 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528293 0 0 4096 0 0 0 0 17 0 0 0
/proc/9415/statm: 4184 320 61 107 0 4073 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 16736

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

[startup+1.90189 s]
/proc/loadavg: 0.84 0.94 0.98 2/78 9416
/proc/meminfo: memFree=1466296/2055920 swapFree=4143384/4192956
[pid=9415] ppid=9413 vsize=16736 CPUtime=1.89
/proc/9415/stat : 9415 (kcnfs-2004) R 9413 9415 8906 0 -1 0 340 0 0 0 189 0 0 0 25 0 1 0 230815696 17137664 320 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134541511 0 0 4096 0 0 0 0 17 0 0 0
/proc/9415/statm: 4184 320 61 107 0 4073 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 16736

[startup+2.10191 s]
/proc/loadavg: 0.84 0.94 0.98 2/78 9416
/proc/meminfo: memFree=1466168/2055920 swapFree=4143384/4192956
[pid=9415] ppid=9413 vsize=16736 CPUtime=2.1
/proc/9415/stat : 9415 (kcnfs-2004) R 9413 9415 8906 0 -1 0 340 0 0 0 210 0 0 0 25 0 1 0 230815696 17137664 320 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134545587 0 0 4096 0 0 0 0 17 0 0 0
/proc/9415/statm: 4184 320 61 107 0 4073 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 16736

Child status: 10
Real time (s): 2.17451
CPU time (s): 2.17267
CPU user time (s): 2.17067
CPU system time (s): 0.001999
CPU usage (%): 99.9151
Max. virtual memory (cumulated for all children) (KiB): 16736

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.17067
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= 340
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= 58

runsolver used 0.006998 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node24 on Sun Apr 29 06:42:57 UTC 2007

IDJOB= 426766
IDBENCH= 19972
IDSOLVER= 194
FILE ID= node24/426766-1177828977

PBS_JOBID= 4718251

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v450/unif-k3-r4.25-v450-c1912-S1113882813-11.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/426766-1177828977/kcnfs-2004 /tmp/evaluation/426766-1177828977/instance-426766-1177828977.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-426766-1177828977 -o ROOT/results/node24/solver-426766-1177828977 -C 5000 -W 7500 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/426766-1177828977/kcnfs-2004 /tmp/evaluation/426766-1177828977/instance-426766-1177828977.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  77226f3880fdc77b8d075583e32b35e0

RANDOM SEED= 611337115

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.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		: 3000.238
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		: 3000.238
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:       1467864 kB
Buffers:         50884 kB
Cached:         445124 kB
SwapCached:      17936 kB
Active:         298104 kB
Inactive:       221988 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1467864 kB
SwapTotal:     4192956 kB
SwapFree:      4143384 kB
Dirty:            3308 kB
Writeback:           0 kB
Mapped:          30348 kB
Slab:            53468 kB
Committed_AS:  3846536 kB
PageTables:       1808 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 node24 on Sun Apr 29 06:42:59 UTC 2007