Trace number 328825

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 2006? (exit code) 0.272957 0.274

General information on the benchmark

Nameindustrial/IBM_FV_2002_13_rule_1/
SAT_dat.k30.cnf
MD5SUM03500a4d5154d29cb90a2da4600bdebd
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables33787
Number of clauses138990
Sum of the clauses size382962
Maximum clause length37
Minimum clause length1
Number of clauses of size 1408
Number of clauses of size 262676
Number of clauses of size 370520
Number of clauses of size 4206
Number of clauses of size 5385
Number of clauses of size over 54795

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/328825-1173124630/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.19/0.27	c this formula cannot been solved by kcnfs
0.19/0.27

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node75/watcher-328825-1173124630 -o ROOT/results/node75/solver-328825-1173124630 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/328825-1173124630/kcnfs-2006 /tmp/evaluation/328825-1173124630/instance-328825-1173124630.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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: 0.92 0.97 0.91 3/64 28368
/proc/meminfo: memFree=1182016/2055920 swapFree=4183180/4192956
[pid=28368] ppid=28366 vsize=180776 CPUtime=0
/proc/28368/stat : 28368 (kcnfs-2006) R 28366 28368 27866 0 -1 4194304 66 0 0 0 0 0 0 0 20 0 1 0 332428861 185114624 51 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/28368/statm: 45194 51 43 158 0 45034 0

[startup+0.047199 s]
/proc/loadavg: 0.92 0.97 0.91 3/64 28368
/proc/meminfo: memFree=1182016/2055920 swapFree=4183180/4192956
[pid=28368] ppid=28366 vsize=180776 CPUtime=0.04
/proc/28368/stat : 28368 (kcnfs-2006) R 28366 28368 27866 0 -1 4194304 66 0 0 0 4 0 0 0 20 0 1 0 332428861 185114624 51 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/28368/statm: 45194 51 43 158 0 45034 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 180776

[startup+0.101204 s]
/proc/loadavg: 0.92 0.97 0.91 3/64 28368
/proc/meminfo: memFree=1182016/2055920 swapFree=4183180/4192956
[pid=28368] ppid=28366 vsize=183416 CPUtime=0.09
/proc/28368/stat : 28368 (kcnfs-2006) R 28366 28368 27866 0 -1 4194304 744 0 0 0 9 0 0 0 20 0 1 0 332428861 187817984 729 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28368/statm: 45854 729 47 158 0 45694 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 183416

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

[startup+0.201217 s]
/proc/loadavg: 0.92 0.97 0.91 3/64 28368
/proc/meminfo: memFree=1182016/2055920 swapFree=4183180/4192956
[pid=28368] ppid=28366 vsize=188960 CPUtime=0.19
/proc/28368/stat : 28368 (kcnfs-2006) R 28366 28368 27866 0 -1 4194304 2134 0 0 0 18 1 0 0 21 0 1 0 332428861 193495040 2119 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28368/statm: 47240 2119 47 158 0 47080 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 188960

Child status: 1
Real time (s): 0.274
CPU time (s): 0.272957
CPU user time (s): 0.251961
CPU system time (s): 0.020996
CPU usage (%): 99.6193
Max. virtual memory (cumulated for all children) (KiB): 188960

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.251961
system time used= 0.020996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3099
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 0.001999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node75 on Mon Mar  5 19:57:10 UTC 2007

IDJOB= 328825
IDBENCH= 20525
IDSOLVER= 113
FILE ID= node75/328825-1173124630

PBS_JOBID= 4015172

Free space on /tmp= 66508 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/IBM_FV_2002_13_rule_1/SAT_dat.k30.cnf
COMMAND LINE= /tmp/evaluation/328825-1173124630/kcnfs-2006 /tmp/evaluation/328825-1173124630/instance-328825-1173124630.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-328825-1173124630 -o ROOT/results/node75/solver-328825-1173124630 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/328825-1173124630/kcnfs-2006 /tmp/evaluation/328825-1173124630/instance-328825-1173124630.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  03500a4d5154d29cb90a2da4600bdebd

RANDOM SEED= 84390724

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node75.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		: 3000.218
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		: 3000.218
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1182360 kB
Buffers:         32824 kB
Cached:         760464 kB
SwapCached:       3808 kB
Active:          28244 kB
Inactive:       774636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1182360 kB
SwapTotal:     4192956 kB
SwapFree:      4183180 kB
Dirty:            6440 kB
Writeback:           0 kB
Mapped:          15512 kB
Slab:            56552 kB
Committed_AS:   849000 kB
PageTables:       1432 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= 66508 MiB

End job on node75 on Mon Mar  5 19:57:11 UTC 2007