Trace number 363340

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 NameAnswerObjective functionCPU timeWall clock time
PB-clasp 2007-03-23OPT1 0.659899 0.665255

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/
miplib2003/normalized-reduced-mps-v2-20-10-mas74.opb
MD5SUMb2d72ee396227b8bee3385af46db0418
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark1
Best CPU time to get the best result obtained on this benchmark0.014997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1
Optimality of the best value was proved YES
Number of variables240
Total number of constraints14
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints13
Minimum length of a constraint90
Maximum length of a constraint239
Number of terms in the objective function 240
Biggest coefficient in the objective function 262144
Number of bits for the biggest coefficient in the objective function 19
Sum of the numbers in the objective function 524508
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262144
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 524508
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.03/0.14	o 7
0.13/0.26	o 3
0.24/0.36	o 2
0.34/0.57	o 1
0.56/0.66	s OPTIMUM FOUND
0.56/0.66	v x1

Verifier Data (download as text)

OK	1

Conversion Script Data (download as text)

/tmp/evaluation/363340-1177026093/instance-363340-1177026093.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/node27/watcher-363340-1177026093 -o ROOT/results/node27/solver-363340-1177026093 -C 1800 -W 3600 -M 1800 --output-limit 1,15 pbclasp instance-363340-1177026093.opb /tmp/evaluation/363340-1177026093/temp 

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: 0.99 0.98 0.99 3/65 27431
/proc/meminfo: memFree=1829784/2055920 swapFree=4179984/4192956
[pid=27431] ppid=27429 vsize=12268 CPUtime=0
/proc/27431/stat : 27431 (pbclasp) D 27429 27431 28413 0 -1 4194304 351 0 0 0 0 0 0 0 18 0 1 0 115305243 12562432 317 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 244445837925 0 2147483391 4224 0 18446744072099781622 0 0 17 1 0 0
/proc/27431/statm: 3067 317 242 3 0 167 0

[startup+0.0182881 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 27431
/proc/meminfo: memFree=1829784/2055920 swapFree=4179984/4192956
[pid=27431] ppid=27429 vsize=12400 CPUtime=0
/proc/27431/stat : 27431 (pbclasp) S 27429 27431 28413 0 -1 4194304 501 0 0 0 0 0 0 0 16 0 1 0 115305243 12697600 453 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 244454568034 0 0 4224 16384 18446744071563648864 0 0 17 1 0 0
/proc/27431/statm: 3100 453 324 3 0 200 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12400

[startup+0.101296 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 27431
/proc/meminfo: memFree=1829784/2055920 swapFree=4179984/4192956
[pid=27431] ppid=27429 vsize=12400 CPUtime=0.03
/proc/27431/stat : 27431 (pbclasp) S 27429 27431 28413 0 -1 4194304 596 1603 0 0 0 0 3 0 16 0 1 0 115305243 12697600 478 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 244454571924 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/27431/statm: 3100 478 343 3 0 200 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 12400

[startup+0.301317 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 27431
/proc/meminfo: memFree=1829784/2055920 swapFree=4179984/4192956
[pid=27431] ppid=27429 vsize=12528 CPUtime=0.24
/proc/27431/stat : 27431 (pbclasp) S 27429 27431 28413 0 -1 4194304 826 7180 0 0 0 0 20 4 16 0 1 0 115305243 12828672 480 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 244454571924 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/27431/statm: 3132 480 343 3 0 232 0
Current children cumulated CPU time (s) 0.24
Current children cumulated vsize (KiB) 12528

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

[startup+0.501334 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 27431
/proc/meminfo: memFree=1829784/2055920 swapFree=4179984/4192956
[pid=27431] ppid=27429 vsize=12528 CPUtime=0.34
/proc/27431/stat : 27431 (pbclasp) S 27429 27431 28413 0 -1 4194304 940 9978 0 0 0 0 27 7 16 0 1 0 115305243 12828672 480 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 244454571924 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/27431/statm: 3132 480 343 3 0 232 0
Current children cumulated CPU time (s) 0.34
Current children cumulated vsize (KiB) 12528

[startup+0.601348 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 27431
/proc/meminfo: memFree=1829784/2055920 swapFree=4179984/4192956
[pid=27431] ppid=27429 vsize=12528 CPUtime=0.56
/proc/27431/stat : 27431 (pbclasp) S 27429 27431 28413 0 -1 4194304 1052 14679 0 0 0 0 46 10 16 0 1 0 115305243 12828672 480 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 244454571924 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/27431/statm: 3132 480 343 3 0 232 0
Current children cumulated CPU time (s) 0.56
Current children cumulated vsize (KiB) 12528

Child status: 0
Real time (s): 0.665255
CPU time (s): 0.659899
CPU user time (s): 0.534918
CPU system time (s): 0.124981
CPU usage (%): 99.1949
Max. virtual memory (cumulated for all children) (KiB): 12528

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.534918
system time used= 0.124981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17654
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= 299
involuntary context switches= 61

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node27 on Thu Apr 19 23:41:33 UTC 2007

IDJOB= 363340
IDBENCH= 1806
IDSOLVER= 158
FILE ID= node27/363340-1177026093

PBS_JOBID= 4630579

Free space on /tmp= 66377 MiB

SOLVER NAME= PB-clasp 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/miplib2003/normalized-reduced-mps-v2-20-10-mas74.opb
COMMAND LINE= pbclasp instance-363340-1177026093.opb /tmp/evaluation/363340-1177026093/temp
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node27/convwatcher-363340-1177026093 -o ROOT/results/node27/conversion-363340-1177026093 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/363340-1177026093/instance-363340-1177026093.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node27/watcher-363340-1177026093 -o ROOT/results/node27/solver-363340-1177026093 -C 1800 -W 3600 -M 1800 --output-limit 1,15  pbclasp instance-363340-1177026093.opb /tmp/evaluation/363340-1177026093/temp

META MD5SUM SOLVER= 814f1745fa20958d8b352781cfa0403e
MD5SUM BENCH=  b2d72ee396227b8bee3385af46db0418

RANDOM SEED= 817774974

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node27.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		: 3000.213
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	: 5931.00
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		: 3000.213
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:       1830192 kB
Buffers:         34992 kB
Cached:         117844 kB
SwapCached:       6488 kB
Active:          65408 kB
Inactive:       103520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1830192 kB
SwapTotal:     4192956 kB
SwapFree:      4179984 kB
Dirty:            1240 kB
Writeback:           0 kB
Mapped:          19228 kB
Slab:            42804 kB
Committed_AS:  2050956 kB
PageTables:       1424 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= 66377 MiB

End job on node27 on Thu Apr 19 23:41:34 UTC 2007