Trace number 2657004

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
bsolo 3.2 CardOPT62027 0.053991 0.0525651

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/
MIPLIB/miplib/normalized-mps-v2-20-10-p0040.opb
MD5SUMab21eb5817d07a398a94670d7815d5fb
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark62027
Best CPU time to get the best result obtained on this benchmark0.012997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 62027
Optimality of the best value was proved YES
Number of variables40
Total number of constraints23
Number of constraints which are clauses10
Number of constraints which are cardinality constraints (but not clauses)10
Number of constraints which are nor clauses,nor cardinality constraints3
Minimum length of a constraint4
Maximum length of a constraint10
Number of terms in the objective function 40
Biggest coefficient in the objective function 8161
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 265332
Number of bits of the sum of numbers in the objective function 19
Biggest number in a constraint 8161
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 265332
Number of bits of the biggest sum of numbers19
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 

0.00/0.00	c bsolo beta version 3.2 - 23/05/2010 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Learning Strategy: Cardinality Constraint Learning
0.00/0.00	c Instance file HOME/instance-2657004-1276356050.opb
0.00/0.00	c File size is 1606 bytes.
0.00/0.00	c Highest Coefficient sum: 265332
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 40 Constr: 23 11/10/2 Lit: 110 Watch. Lit: 68
0.00/0.00	c Obj. Vars: 40 (100 % of total variables)
0.00/0.00	c Pre-processing Time: 0 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0     40       23      110    4       68      83      0 -2147483648 0.00
0.00/0.00	c Initial Lower Bound: 61830
0.00/0.00	c Initial Path Cost: 0
0.00/0.00	o 66305
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        1     40       25      166    6      103     163      2   1000 0.00
0.00/0.00	o 62169
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        1     40       26      206    7      134     163      3    333 0.00
0.00/0.00	o 62119
0.01/0.02	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.01/0.02	c        1     40       27      246    9      165     163      4    250 0.00
0.01/0.02	o 62030
0.01/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.01/0.04	c       30     40      109     1168   10      360     163     86   1304 0.02
0.01/0.04	o 62027
0.01/0.05	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.01/0.05	c       64     24      198     1883    9      551     131    175   1422 0.04
0.01/0.05	v -x1 x2 -x3 -x4 -x5 x6 -x7 -x8 x9 -x10 -x11 -x12 -x13 -x14 x15 -x16 -x17 x18 -x19 -x20 -x21 x22 -x23 -x24 -x25 x26 -x27 -x28 x29 -x30 -x31 -x32 -x33 x34 -x35 -x36 -x37 x38 -x39 -x40 
0.01/0.05	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.01/0.05	c    5       78      2      124      132      873    109   1529 0.05
0.01/0.05	c Objective: 62027
0.01/0.05	s OPTIMUM FOUND
0.01/0.05	c Total time: 0.051 s

Verifier Data 

OK	62027

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2657004-1276356050/watcher-2657004-1276356050 -o /tmp/evaluation-result-2657004-1276356050/solver-2657004-1276356050 -C 1800 -W 2000 -M 1800 bsolo_pb10 -t1800 -l2 HOME/instance-2657004-1276356050.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 14299
/proc/meminfo: memFree=1837884/2059040 swapFree=4135584/4192956
[pid=14299] ppid=14297 vsize=26864 CPUtime=0
/proc/14299/stat : 14299 (bsolo_pb10) R 14297 14299 14024 0 -1 4202496 760 0 0 0 0 0 0 0 17 0 1 0 11208979 27508736 345 1992294400 134512640 137138936 4287095760 18446744073709551615 136506715 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/14299/statm: 6599 335 285 642 0 5955 0

[startup+0.015349 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 14299
/proc/meminfo: memFree=1837884/2059040 swapFree=4135584/4192956
[pid=14299] ppid=14297 vsize=26872 CPUtime=0.01
/proc/14299/stat : 14299 (bsolo_pb10) R 14297 14299 14024 0 -1 4202496 1125 0 0 0 1 0 0 0 17 0 1 0 11208979 27516928 350 1992294400 134512640 137138936 4287095760 18446744073709551615 135445326 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/14299/statm: 6718 355 285 642 0 6074 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 26872

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

[startup+0.015349 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 14299
/proc/meminfo: memFree=1837884/2059040 swapFree=4135584/4192956
[pid=14299] ppid=14297 vsize=26872 CPUtime=0.01
/proc/14299/stat : 14299 (bsolo_pb10) R 14297 14299 14024 0 -1 4202496 1125 0 0 0 1 0 0 0 17 0 1 0 11208979 27516928 350 1992294400 134512640 137138936 4287095760 18446744073709551615 135445326 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/14299/statm: 6718 355 285 642 0 6074 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 26872

Child status: 0
Real time (s): 0.0525651
CPU time (s): 0.053991
CPU user time (s): 0.042993
CPU system time (s): 0.010998
CPU usage (%): 102.713
Max. virtual memory (cumulated for all children) (KiB): 26872

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.042993
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3039
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= 1
involuntary context switches= 1

runsolver used 0.000999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-12 17:20:50
IDJOB=2657004
IDBENCH=1867
IDSOLVER=1162
FILE ID=node002/2657004-1276356050
PBS_JOBID= 11173204
Free space on /tmp= 62400 MiB

SOLVER NAME= bsolo 3.2 Card
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-p0040.opb
COMMAND LINE= bsolo_pb10 -tTIMEOUT -l2 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2657004-1276356050/watcher-2657004-1276356050 -o /tmp/evaluation-result-2657004-1276356050/solver-2657004-1276356050 -C 1800 -W 2000 -M 1800  bsolo_pb10 -t1800 -l2 HOME/instance-2657004-1276356050.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= ab21eb5817d07a398a94670d7815d5fb
RANDOM SEED=1912012998

node002.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.242
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.48
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		: 3000.242
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1838412 kB
Buffers:         27352 kB
Cached:         119472 kB
SwapCached:      17672 kB
Active:         103544 kB
Inactive:        62936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1838412 kB
SwapTotal:     4192956 kB
SwapFree:      4135584 kB
Dirty:            3880 kB
Writeback:           0 kB
AnonPages:       10752 kB
Mapped:           9112 kB
Slab:            32284 kB
PageTables:       4056 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179696 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62396 MiB
End job on node002 at 2010-06-12 17:20:50