Trace number 330799

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) 1.42678 1.43481

General information on the benchmark

Nameindustrial/IBM_FV_2004_30/
IBM_FV_2004_rule_batch_30_SAT_dat.k85.cnf
MD5SUMe2ab53f07158137fdccdce6798b16e56
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark680.601
Satisfiable
(Un)Satisfiability was proved
Number of variables175524
Number of clauses730199
Sum of the clauses size1873791
Maximum clause length12
Minimum clause length1
Number of clauses of size 12072
Number of clauses of size 2518005
Number of clauses of size 3137216
Number of clauses of size 426034
Number of clauses of size 514829
Number of clauses of size over 532043

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/330799-1173173983/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
1.38/1.42	c this formula cannot been solved by kcnfs
1.38/1.42

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/node6/watcher-330799-1173173983 -o ROOT/results/node6/solver-330799-1173173983 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/330799-1173173983/kcnfs-2006 /tmp/evaluation/330799-1173173983/instance-330799-1173173983.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: 0.78 0.95 1.09 3/77 17870
/proc/meminfo: memFree=1681008/2055924 swapFree=4156956/4192956
[pid=17870] ppid=17868 vsize=180776 CPUtime=0
/proc/17870/stat : 17870 (kcnfs-2006) R 17868 17870 17758 0 -1 4194304 66 0 0 0 0 0 0 0 18 0 1 0 337353170 185114624 51 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 0 0 0
/proc/17870/statm: 45194 51 43 158 0 45034 0

[startup+0.0561631 s]
/proc/loadavg: 0.78 0.95 1.09 3/77 17870
/proc/meminfo: memFree=1681008/2055924 swapFree=4156956/4192956
[pid=17870] ppid=17868 vsize=180776 CPUtime=0.05
/proc/17870/stat : 17870 (kcnfs-2006) R 17868 17870 17758 0 -1 4194304 66 0 0 0 5 0 0 0 18 0 1 0 337353170 185114624 51 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 0 0 0
/proc/17870/statm: 45194 51 43 158 0 45034 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 180776

[startup+0.101171 s]
/proc/loadavg: 0.78 0.95 1.09 3/77 17870
/proc/meminfo: memFree=1681008/2055924 swapFree=4156956/4192956
[pid=17870] ppid=17868 vsize=180776 CPUtime=0.09
/proc/17870/stat : 17870 (kcnfs-2006) R 17868 17870 17758 0 -1 4194304 66 0 0 0 9 0 0 0 18 0 1 0 337353170 185114624 51 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 0 0 0
/proc/17870/statm: 45194 51 43 158 0 45034 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 180776

[startup+0.301215 s]
/proc/loadavg: 0.78 0.95 1.09 3/77 17870
/proc/meminfo: memFree=1681008/2055924 swapFree=4156956/4192956
[pid=17870] ppid=17868 vsize=181304 CPUtime=0.29
/proc/17870/stat : 17870 (kcnfs-2006) R 17868 17870 17758 0 -1 4194304 213 0 0 0 29 0 0 0 19 0 1 0 337353170 185655296 198 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134941363 0 0 4096 0 0 0 0 17 1 0 0
/proc/17870/statm: 45326 198 47 158 0 45166 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 181304

[startup+0.702299 s]
/proc/loadavg: 0.78 0.95 1.09 3/77 17870
/proc/meminfo: memFree=1681008/2055924 swapFree=4156956/4192956
[pid=17870] ppid=17868 vsize=202292 CPUtime=0.69
/proc/17870/stat : 17870 (kcnfs-2006) R 17868 17870 17758 0 -1 4194304 5468 0 0 0 67 2 0 0 23 0 1 0 337353170 207147008 5453 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134778911 0 0 4096 0 0 0 0 17 1 0 0
/proc/17870/statm: 50573 5453 47 158 0 50413 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 202292

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

[startup+1.10537 s]
/proc/loadavg: 0.78 0.95 1.09 2/78 17871
/proc/meminfo: memFree=1643688/2055924 swapFree=4156956/4192956
[pid=17870] ppid=17868 vsize=223280 CPUtime=1.09
/proc/17870/stat : 17870 (kcnfs-2006) R 17868 17870 17758 0 -1 4194304 10711 0 0 0 105 4 0 0 25 0 1 0 337353170 228638720 10696 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 0 0 0
/proc/17870/statm: 55820 10696 47 158 0 55660 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 223280

[startup+1.30141 s]
/proc/loadavg: 0.78 0.95 1.09 2/78 17871
/proc/meminfo: memFree=1643688/2055924 swapFree=4156956/4192956
[pid=17870] ppid=17868 vsize=234104 CPUtime=1.28
/proc/17870/stat : 17870 (kcnfs-2006) R 17868 17870 17758 0 -1 4194304 13408 0 0 0 123 5 0 0 25 0 1 0 337353170 239722496 13393 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 0 0 0
/proc/17870/statm: 58526 13394 47 158 0 58366 0
Current children cumulated CPU time (s) 1.28
Current children cumulated vsize (KiB) 234104

[startup+1.40143 s]
/proc/loadavg: 0.78 0.95 1.09 2/78 17871
/proc/meminfo: memFree=1643688/2055924 swapFree=4156956/4192956
[pid=17870] ppid=17868 vsize=239516 CPUtime=1.38
/proc/17870/stat : 17870 (kcnfs-2006) R 17868 17870 17758 0 -1 4194304 14783 0 0 0 132 6 0 0 25 0 1 0 337353170 245264384 14768 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 0 0 0
/proc/17870/statm: 59879 14768 47 158 0 59719 0
Current children cumulated CPU time (s) 1.38
Current children cumulated vsize (KiB) 239516

Child status: 1
Real time (s): 1.43481
CPU time (s): 1.42678
CPU user time (s): 1.34879
CPU system time (s): 0.077988
CPU usage (%): 99.4406
Max. virtual memory (cumulated for all children) (KiB): 239516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.34879
system time used= 0.077988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15086
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= 31

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node6 on Tue Mar  6 09:39:45 UTC 2007

IDJOB= 330799
IDBENCH= 20572
IDSOLVER= 113
FILE ID= node6/330799-1173173983

PBS_JOBID= 4015022

Free space on /tmp= 66378 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/IBM_FV_2004_30/IBM_FV_2004_rule_batch_30_SAT_dat.k85.cnf
COMMAND LINE= /tmp/evaluation/330799-1173173983/kcnfs-2006 /tmp/evaluation/330799-1173173983/instance-330799-1173173983.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-330799-1173173983 -o ROOT/results/node6/solver-330799-1173173983 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/330799-1173173983/kcnfs-2006 /tmp/evaluation/330799-1173173983/instance-330799-1173173983.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  e2ab53f07158137fdccdce6798b16e56

RANDOM SEED= 581542637

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node6.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		: 3000.277
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		: 3000.277
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:      2055924 kB
MemFree:       1681288 kB
Buffers:         37308 kB
Cached:         259364 kB
SwapCached:       2120 kB
Active:         152576 kB
Inactive:       166460 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1681288 kB
SwapTotal:     4192956 kB
SwapFree:      4156956 kB
Dirty:           20980 kB
Writeback:           0 kB
Mapped:          30476 kB
Slab:            41248 kB
Committed_AS:  1253152 kB
PageTables:       1744 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= 66378 MiB

End job on node6 on Tue Mar  6 09:39:46 UTC 2007