Trace number 315268

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) 1.47777 1.47991

General information on the benchmark

Nameindustrial/palacios/uts/
uts-l06-ipc5-h34-unknown.cnf
MD5SUMc4c13853f3af198723d8a0120426d1cc
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark36.5244
Satisfiable
(Un)Satisfiability was proved
Number of variables184866
Number of clauses874988
Sum of the clauses size2256992
Maximum clause length591
Minimum clause length1
Number of clauses of size 1276
Number of clauses of size 2692136
Number of clauses of size 3176579
Number of clauses of size 41637
Number of clauses of size 5133
Number of clauses of size over 54227

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/315268-1172652156/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
1.39/1.46	c this formula cannot been solved by kcnfs
1.39/1.46

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/node35/watcher-315268-1172652156 -o ROOT/results/node35/solver-315268-1172652156 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/315268-1172652156/kcnfs-2006 /tmp/evaluation/315268-1172652156/instance-315268-1172652156.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 0.95 0.95 3/64 16084
/proc/meminfo: memFree=1404904/2055920 swapFree=4183504/4192956
[pid=16084] ppid=16082 vsize=180908 CPUtime=0
/proc/16084/stat : 16084 (kcnfs-2006) R 16082 16084 15618 0 -1 4194304 123 0 0 0 0 0 0 0 18 0 1 0 258979308 185249792 108 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/16084/statm: 45227 109 47 158 0 45067 0

[startup+0.0778471 s]
/proc/loadavg: 0.92 0.95 0.95 3/64 16084
/proc/meminfo: memFree=1404904/2055920 swapFree=4183504/4192956
[pid=16084] ppid=16082 vsize=184472 CPUtime=0.07
/proc/16084/stat : 16084 (kcnfs-2006) R 16082 16084 15618 0 -1 4194304 1013 0 0 0 7 0 0 0 18 0 1 0 258979308 188899328 998 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/16084/statm: 46118 998 47 158 0 45958 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 184472

[startup+0.101851 s]
/proc/loadavg: 0.92 0.95 0.95 3/64 16084
/proc/meminfo: memFree=1404904/2055920 swapFree=4183504/4192956
[pid=16084] ppid=16082 vsize=185660 CPUtime=0.09
/proc/16084/stat : 16084 (kcnfs-2006) R 16082 16084 15618 0 -1 4194304 1295 0 0 0 9 0 0 0 18 0 1 0 258979308 190115840 1280 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/16084/statm: 46415 1281 47 158 0 46255 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 185660

[startup+0.301891 s]
/proc/loadavg: 0.92 0.95 0.95 3/64 16084
/proc/meminfo: memFree=1404904/2055920 swapFree=4183504/4192956
[pid=16084] ppid=16082 vsize=194900 CPUtime=0.29
/proc/16084/stat : 16084 (kcnfs-2006) R 16082 16084 15618 0 -1 4194304 3619 0 0 0 28 1 0 0 19 0 1 0 258979308 199577600 3604 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/16084/statm: 48725 3605 47 158 0 48565 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 194900

[startup+0.70197 s]
/proc/loadavg: 0.92 0.95 0.95 3/64 16084
/proc/meminfo: memFree=1404904/2055920 swapFree=4183504/4192956
[pid=16084] ppid=16082 vsize=214172 CPUtime=0.69
/proc/16084/stat : 16084 (kcnfs-2006) R 16082 16084 15618 0 -1 4194304 8434 0 0 0 66 3 0 0 22 0 1 0 258979308 219312128 8419 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/16084/statm: 53543 8419 47 158 0 53383 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 214172

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

[startup+1.10605 s]
/proc/loadavg: 0.92 0.95 0.95 2/65 16085
/proc/meminfo: memFree=1355488/2055920 swapFree=4183504/4192956
[pid=16084] ppid=16082 vsize=234764 CPUtime=1.1
/proc/16084/stat : 16084 (kcnfs-2006) R 16082 16084 15618 0 -1 4194304 13574 0 0 0 104 6 0 0 25 0 1 0 258979308 240398336 13559 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/16084/statm: 58691 13560 47 158 0 58531 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 234764

[startup+1.30209 s]
/proc/loadavg: 0.92 0.95 0.95 2/65 16085
/proc/meminfo: memFree=1355488/2055920 swapFree=4183504/4192956
[pid=16084] ppid=16082 vsize=244400 CPUtime=1.29
/proc/16084/stat : 16084 (kcnfs-2006) R 16082 16084 15618 0 -1 4194304 15977 0 0 0 121 8 0 0 25 0 1 0 258979308 250265600 15962 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/16084/statm: 61100 15962 47 158 0 60940 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 244400

[startup+1.40112 s]
/proc/loadavg: 0.92 0.95 0.95 2/65 16085
/proc/meminfo: memFree=1355488/2055920 swapFree=4183504/4192956
[pid=16084] ppid=16082 vsize=249416 CPUtime=1.39
/proc/16084/stat : 16084 (kcnfs-2006) R 16082 16084 15618 0 -1 4194304 17234 0 0 0 131 8 0 0 25 0 1 0 258979308 255401984 17219 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/16084/statm: 62354 17219 47 158 0 62194 0
Current children cumulated CPU time (s) 1.39
Current children cumulated vsize (KiB) 249416

Child status: 1
Real time (s): 1.47991
CPU time (s): 1.47777
CPU user time (s): 1.37679
CPU system time (s): 0.100984
CPU usage (%): 99.8559
Max. virtual memory (cumulated for all children) (KiB): 249416

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.37679
system time used= 0.100984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 18105
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= 3

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node35 on Wed Feb 28 08:42:36 UTC 2007

IDJOB= 315268
IDBENCH= 20412
IDSOLVER= 113
FILE ID= node35/315268-1172652156

PBS_JOBID= 3981179

Free space on /tmp= 66510 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/palacios/uts/uts-l06-ipc5-h34-unknown.cnf
COMMAND LINE= /tmp/evaluation/315268-1172652156/kcnfs-2006 /tmp/evaluation/315268-1172652156/instance-315268-1172652156.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node35/watcher-315268-1172652156 -o ROOT/results/node35/solver-315268-1172652156 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/315268-1172652156/kcnfs-2006 /tmp/evaluation/315268-1172652156/instance-315268-1172652156.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  c4c13853f3af198723d8a0120426d1cc

RANDOM SEED= 550597561

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node35.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		: 3000.263
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		: 3000.263
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:       1405376 kB
Buffers:         24980 kB
Cached:         551752 kB
SwapCached:       3376 kB
Active:         144152 kB
Inactive:       442376 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1405376 kB
SwapTotal:     4192956 kB
SwapFree:      4183504 kB
Dirty:           19020 kB
Writeback:           0 kB
Mapped:          15308 kB
Slab:            50084 kB
Committed_AS:   841504 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= 66510 MiB

End job on node35 on Wed Feb 28 08:42:38 UTC 2007