Trace number 358624

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
glpPB 0.2UNSAT 0.230964 0.323607

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111217392.opb
MD5SUM87905b580a8cbad3b6d7f981df390136
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.230964
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1248
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.08	c glpPB 0.2 (July 2006)
0.00/0.08	c An Application of GLPK 4.10 for PB Constraints
0.00/0.08	c Done @ University of Michigan, Ann Arbor, MI
0.00/0.08	c  by Hossein Sheini
0.20/0.32	c starting to Solve
0.20/0.32	c total time = 0.22
0.20/0.32	s UNSATISFIABLE

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/358624-1176916673/instance-358624-1176916673.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node51/watcher-358624-1176916673 -o ROOT/results/node51/solver-358624-1176916673 -C 1800 -W 3600 -M 1800 --output-limit 1,15 glpPBv3 /tmp/evaluation/358624-1176916673/instance-358624-1176916673.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 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: 0.72 0.94 0.98 3/64 9723
/proc/meminfo: memFree=1980416/2055920 swapFree=4183232/4192956
[pid=9723] ppid=9721 vsize=18568 CPUtime=0
/proc/9723/stat : 9723 (runsolver) D 9721 9723 9649 0 -1 4194368 17 0 0 0 0 0 0 0 18 0 1 0 46512396 19013632 292 18446744073709551615 4194304 4296420 548682068992 18446744073709551615 235371293991 0 0 4096 24578 18446744071563608240 0 0 17 1 0 0
/proc/9723/statm: 4642 292 257 24 0 2626 0

[startup+0.033371 s]
/proc/loadavg: 0.72 0.94 0.98 3/64 9723
/proc/meminfo: memFree=1980416/2055920 swapFree=4183232/4192956
[pid=9723] ppid=9721 vsize=1060 CPUtime=0
/proc/9723/stat : 9723 (glpPBv3) D 9721 9723 9649 0 -1 0 50 0 2 0 0 0 0 0 18 0 1 0 46512396 1085440 35 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 2618276 0 0 4096 0 18446744071563608240 0 0 17 1 0 0
/proc/9723/statm: 265 35 27 40 0 8 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1060

[startup+0.101375 s]
/proc/loadavg: 0.72 0.94 0.98 3/64 9723
/proc/meminfo: memFree=1980416/2055920 swapFree=4183232/4192956
[pid=9723] ppid=9721 vsize=2784 CPUtime=0
/proc/9723/stat : 9723 (glpPBv3) R 9721 9723 9649 0 -1 0 315 0 16 0 0 0 0 0 18 0 1 0 46512396 2850816 300 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 3083991 0 0 4096 0 0 0 0 17 1 0 0
/proc/9723/statm: 696 300 221 40 0 111 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2784

[startup+0.301391 s]
/proc/loadavg: 0.72 0.94 0.98 3/64 9723
/proc/meminfo: memFree=1980416/2055920 swapFree=4183232/4192956
[pid=9723] ppid=9721 vsize=3044 CPUtime=0.2
/proc/9723/stat : 9723 (glpPBv3) R 9721 9723 9649 0 -1 0 370 0 16 0 20 0 0 0 19 0 1 0 46512396 3117056 355 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134632756 0 0 4096 0 0 0 0 17 1 0 0
/proc/9723/statm: 761 355 227 40 0 176 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 3044

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

Child status: 20
Real time (s): 0.323607
CPU time (s): 0.230964
CPU user time (s): 0.226965
CPU system time (s): 0.003999
CPU usage (%): 71.3718
Max. virtual memory (cumulated for all children) (KiB): 3044

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.226965
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 378
page faults= 16
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 38
involuntary context switches= 0

runsolver used 0.004999 second user time and 0.002999 second system time

The end

Launcher Data (download as text)

Begin job on node51 on Wed Apr 18 17:17:53 UTC 2007

IDJOB= 358624
IDBENCH= 1227
IDSOLVER= 166
FILE ID= node51/358624-1176916673

PBS_JOBID= 4605637

Free space on /tmp= 66460 MiB

SOLVER NAME= glpPB 0.2
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111217392.opb
COMMAND LINE= glpPBv3 /tmp/evaluation/358624-1176916673/instance-358624-1176916673.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node51/convwatcher-358624-1176916673 -o ROOT/results/node51/conversion-358624-1176916673 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358624-1176916673/instance-358624-1176916673.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node51/watcher-358624-1176916673 -o ROOT/results/node51/solver-358624-1176916673 -C 1800 -W 3600 -M 1800 --output-limit 1,15  glpPBv3 /tmp/evaluation/358624-1176916673/instance-358624-1176916673.opb

META MD5SUM SOLVER= 9ebec3e8d890fdeefad01654ad9b68b7
MD5SUM BENCH=  87905b580a8cbad3b6d7f981df390136

RANDOM SEED= 230117986

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node51.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		: 3000.223
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		: 3000.223
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:       1980888 kB
Buffers:          4776 kB
Cached:          25048 kB
SwapCached:       3224 kB
Active:          25340 kB
Inactive:        13364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1980888 kB
SwapTotal:     4192956 kB
SwapFree:      4183232 kB
Dirty:            2468 kB
Writeback:           0 kB
Mapped:          15104 kB
Slab:            22416 kB
Committed_AS:  2578652 kB
PageTables:       1408 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= 66460 MiB

End job on node51 on Wed Apr 18 17:17:53 UTC 2007