Trace number 329455

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) 1.06884 1.07106

General information on the benchmark

Nameindustrial/IBM_FV_2002_31_1_rule_1/
SAT_dat.k80.cnf
MD5SUMd8d6a3220ff7f841840041023f45b746
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 variables119275
Number of clauses534228
Sum of the clauses size1374894
Maximum clause length20
Minimum clause length1
Number of clauses of size 1743
Number of clauses of size 2416106
Number of clauses of size 358662
Number of clauses of size 423975
Number of clauses of size 510404
Number of clauses of size over 524338

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/329455-1173140890/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.99/1.06	c this formula cannot been solved by kcnfs
0.99/1.06

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/node55/watcher-329455-1173140890 -o ROOT/results/node55/solver-329455-1173140890 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/329455-1173140890/kcnfs-2006 /tmp/evaluation/329455-1173140890/instance-329455-1173140890.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: 0.85 0.98 1.10 3/64 21660
/proc/meminfo: memFree=916456/2055920 swapFree=4183804/4192956
[pid=21660] ppid=21658 vsize=180776 CPUtime=0
/proc/21660/stat : 21660 (kcnfs-2006) R 21658 21660 20823 0 -1 4194304 66 0 0 0 0 0 0 0 18 0 1 0 334045490 185114624 51 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/21660/statm: 45194 51 43 158 0 45034 0

[startup+0.070739 s]
/proc/loadavg: 0.85 0.98 1.10 3/64 21660
/proc/meminfo: memFree=916456/2055920 swapFree=4183804/4192956
[pid=21660] ppid=21658 vsize=180776 CPUtime=0.06
/proc/21660/stat : 21660 (kcnfs-2006) R 21658 21660 20823 0 -1 4194304 66 0 0 0 6 0 0 0 18 0 1 0 334045490 185114624 51 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/21660/statm: 45194 51 43 158 0 45034 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 180776

[startup+0.10174 s]
/proc/loadavg: 0.85 0.98 1.10 3/64 21660
/proc/meminfo: memFree=916456/2055920 swapFree=4183804/4192956
[pid=21660] ppid=21658 vsize=180776 CPUtime=0.1
/proc/21660/stat : 21660 (kcnfs-2006) R 21658 21660 20823 0 -1 4194304 66 0 0 0 10 0 0 0 18 0 1 0 334045490 185114624 51 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/21660/statm: 45194 51 43 158 0 45034 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 180776

[startup+0.301759 s]
/proc/loadavg: 0.85 0.98 1.10 3/64 21660
/proc/meminfo: memFree=916456/2055920 swapFree=4183804/4192956
[pid=21660] ppid=21658 vsize=186056 CPUtime=0.29
/proc/21660/stat : 21660 (kcnfs-2006) R 21658 21660 20823 0 -1 4194304 1396 0 0 0 29 0 0 0 19 0 1 0 334045490 190521344 1381 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21660/statm: 46514 1382 47 158 0 46354 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 186056

[startup+0.701798 s]
/proc/loadavg: 0.85 0.98 1.10 3/64 21660
/proc/meminfo: memFree=916456/2055920 swapFree=4183804/4192956
[pid=21660] ppid=21658 vsize=206252 CPUtime=0.69
/proc/21660/stat : 21660 (kcnfs-2006) R 21658 21660 20823 0 -1 4194304 6439 0 0 0 67 2 0 0 22 0 1 0 334045490 211202048 6424 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21660/statm: 51563 6425 47 158 0 51403 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 206252

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

[startup+0.901818 s]
/proc/loadavg: 0.85 0.98 1.10 3/64 21660
/proc/meminfo: memFree=916456/2055920 swapFree=4183804/4192956
[pid=21660] ppid=21658 vsize=216284 CPUtime=0.89
/proc/21660/stat : 21660 (kcnfs-2006) R 21658 21660 20823 0 -1 4194304 8959 0 0 0 85 4 0 0 24 0 1 0 334045490 221474816 8944 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21660/statm: 54071 8945 47 158 0 53911 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 216284

[startup+1.00183 s]
/proc/loadavg: 0.85 0.98 1.10 2/65 21661
/proc/meminfo: memFree=875872/2055920 swapFree=4183804/4192956
[pid=21660] ppid=21658 vsize=221300 CPUtime=0.99
/proc/21660/stat : 21660 (kcnfs-2006) R 21658 21660 20823 0 -1 4194304 10233 0 0 0 95 4 0 0 25 0 1 0 334045490 226611200 10218 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21660/statm: 55358 10219 47 158 0 55198 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 221300

Child status: 1
Real time (s): 1.07106
CPU time (s): 1.06884
CPU user time (s): 1.00885
CPU system time (s): 0.05999
CPU usage (%): 99.792
Max. virtual memory (cumulated for all children) (KiB): 221300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.00885
system time used= 0.05999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10956
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 0.003999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node55 on Tue Mar  6 00:28:11 UTC 2007

IDJOB= 329455
IDBENCH= 20540
IDSOLVER= 113
FILE ID= node55/329455-1173140890

PBS_JOBID= 4015194

Free space on /tmp= 66489 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/IBM_FV_2002_31_1_rule_1/SAT_dat.k80.cnf
COMMAND LINE= /tmp/evaluation/329455-1173140890/kcnfs-2006 /tmp/evaluation/329455-1173140890/instance-329455-1173140890.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-329455-1173140890 -o ROOT/results/node55/solver-329455-1173140890 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/329455-1173140890/kcnfs-2006 /tmp/evaluation/329455-1173140890/instance-329455-1173140890.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  d8d6a3220ff7f841840041023f45b746

RANDOM SEED= 789114200

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node55.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		: 3000.247
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		: 3000.247
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:        916864 kB
Buffers:         39692 kB
Cached:        1014676 kB
SwapCached:       3100 kB
Active:          77292 kB
Inactive:       986692 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        916864 kB
SwapTotal:     4192956 kB
SwapFree:      4183804 kB
Dirty:           15672 kB
Writeback:           0 kB
Mapped:          15664 kB
Slab:            61184 kB
Committed_AS:   961108 kB
PageTables:       1380 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= 66489 MiB

End job on node55 on Tue Mar  6 00:28:12 UTC 2007