Trace number 315988

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) 1.63175 1.6334

General information on the benchmark

Nameindustrial/palacios/medium/
blocks-4-ipc5-h22-unknown.cnf
MD5SUM8c6ad18be635cee0d986377c4d06ab11
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark32.906
Satisfiable
(Un)Satisfiability was proved
Number of variables146874
Number of clauses937242
Sum of the clauses size2519136
Maximum clause length417
Minimum clause length1
Number of clauses of size 1125
Number of clauses of size 2791651
Number of clauses of size 3139269
Number of clauses of size 41522
Number of clauses of size 583
Number of clauses of size over 54592

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/315988-1172662879/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
1.58/1.62	c this formula cannot been solved by kcnfs
1.58/1.62

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/node71/watcher-315988-1172662879 -o ROOT/results/node71/solver-315988-1172662879 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/315988-1172662879/kcnfs-2006 /tmp/evaluation/315988-1172662879/instance-315988-1172662879.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 0.98 0.98 3/64 6954
/proc/meminfo: memFree=1696680/2055920 swapFree=4183108/4192956
[pid=6954] ppid=6952 vsize=180908 CPUtime=0
/proc/6954/stat : 6954 (kcnfs-2006) R 6952 6954 6793 0 -1 4194304 124 0 0 0 0 0 0 0 18 0 1 0 286245750 185249792 109 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6954/statm: 45227 109 47 158 0 45067 0

[startup+0.016841 s]
/proc/loadavg: 0.92 0.98 0.98 3/64 6954
/proc/meminfo: memFree=1696680/2055920 swapFree=4183108/4192956
[pid=6954] ppid=6952 vsize=181568 CPUtime=0.01
/proc/6954/stat : 6954 (kcnfs-2006) R 6952 6954 6793 0 -1 4194304 290 0 0 0 1 0 0 0 18 0 1 0 286245750 185925632 275 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6954/statm: 45392 275 47 158 0 45232 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 181568

[startup+0.102862 s]
/proc/loadavg: 0.92 0.98 0.98 3/64 6954
/proc/meminfo: memFree=1696680/2055920 swapFree=4183108/4192956
[pid=6954] ppid=6952 vsize=185924 CPUtime=0.09
/proc/6954/stat : 6954 (kcnfs-2006) R 6952 6954 6793 0 -1 4194304 1375 0 0 0 9 0 0 0 18 0 1 0 286245750 190386176 1360 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6954/statm: 46481 1361 47 158 0 46321 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 185924

[startup+0.3029 s]
/proc/loadavg: 0.92 0.98 0.98 3/64 6954
/proc/meminfo: memFree=1696680/2055920 swapFree=4183108/4192956
[pid=6954] ppid=6952 vsize=195692 CPUtime=0.29
/proc/6954/stat : 6954 (kcnfs-2006) R 6952 6954 6793 0 -1 4194304 3829 0 0 0 27 2 0 0 19 0 1 0 286245750 200388608 3814 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6954/statm: 48923 3814 47 158 0 48763 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 195692

[startup+0.701988 s]
/proc/loadavg: 0.92 0.98 0.98 3/64 6954
/proc/meminfo: memFree=1696680/2055920 swapFree=4183108/4192956
[pid=6954] ppid=6952 vsize=215096 CPUtime=0.69
/proc/6954/stat : 6954 (kcnfs-2006) R 6952 6954 6793 0 -1 4194304 8653 0 0 0 65 4 0 0 22 0 1 0 286245750 220258304 8638 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6954/statm: 53774 8639 47 158 0 53614 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 215096

[startup+1.50116 s]
/proc/loadavg: 0.92 0.98 0.98 2/65 6955
/proc/meminfo: memFree=1647840/2055920 swapFree=4183108/4192956
[pid=6954] ppid=6952 vsize=253640 CPUtime=1.49
/proc/6954/stat : 6954 (kcnfs-2006) R 6952 6954 6793 0 -1 4194304 18287 0 0 0 139 10 0 0 25 0 1 0 286245750 259727360 18272 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6954/statm: 63410 18272 47 158 0 63250 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 253640

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

[startup+1.60118 s]
/proc/loadavg: 0.92 0.98 0.98 2/65 6955
/proc/meminfo: memFree=1647840/2055920 swapFree=4183108/4192956
[pid=6954] ppid=6952 vsize=258788 CPUtime=1.58
/proc/6954/stat : 6954 (kcnfs-2006) R 6952 6954 6793 0 -1 4194304 19590 0 0 0 148 10 0 0 25 0 1 0 286245750 264998912 19575 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6954/statm: 64697 19576 47 158 0 64537 0
Current children cumulated CPU time (s) 1.58
Current children cumulated vsize (KiB) 258788

Child status: 1
Real time (s): 1.6334
CPU time (s): 1.63175
CPU user time (s): 1.50777
CPU system time (s): 0.123981
CPU usage (%): 99.8988
Max. virtual memory (cumulated for all children) (KiB): 258788

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.50777
system time used= 0.123981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19835
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 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node71 on Wed Feb 28 11:41:19 UTC 2007

IDJOB= 315988
IDBENCH= 20430
IDSOLVER= 113
FILE ID= node71/315988-1172662879

PBS_JOBID= 3981211

Free space on /tmp= 66471 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/palacios/medium/blocks-4-ipc5-h22-unknown.cnf
COMMAND LINE= /tmp/evaluation/315988-1172662879/kcnfs-2006 /tmp/evaluation/315988-1172662879/instance-315988-1172662879.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node71/watcher-315988-1172662879 -o ROOT/results/node71/solver-315988-1172662879 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/315988-1172662879/kcnfs-2006 /tmp/evaluation/315988-1172662879/instance-315988-1172662879.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  8c6ad18be635cee0d986377c4d06ab11

RANDOM SEED= 297148948

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node71.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		: 3000.266
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		: 3000.266
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:       1697088 kB
Buffers:          8312 kB
Cached:         294112 kB
SwapCached:       3576 kB
Active:         117708 kB
Inactive:       200116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1697088 kB
SwapTotal:     4192956 kB
SwapFree:      4183108 kB
Dirty:           20300 kB
Writeback:           0 kB
Mapped:          21440 kB
Slab:            26952 kB
Committed_AS:   829796 kB
PageTables:       1460 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= 66471 MiB

End job on node71 on Wed Feb 28 11:41:21 UTC 2007