Trace number 1880420

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 NameAnswerobjCPU timeWall clock time
bsolo 3.1 pbOPT34 0.277957 0.27896

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/
MIPLIB/miplib/normalized-mps-v2-20-10-bm23.opb
MD5SUM5c5bb330d1cbd0e2ab066594a5d2a4de
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark34
Best CPU time to get the best result obtained on this benchmark0.05899
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 34
Optimality of the best value was proved YES
Number of variables27
Total number of constraints20
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints20
Minimum length of a constraint18
Maximum length of a constraint26
Number of terms in the objective function 27
Biggest coefficient in the objective function 9
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 124
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 65
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 182
Number of bits of the biggest sum of numbers8
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 3.1 - 13/04/2009 : 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 Learning Strategy: Generic Pseudo-Boolean Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file HOME/instance-1880420-1245133790.opb
0.00/0.00	c File size is 3739 bytes.
0.00/0.00	c Highest Coefficient sum: 182
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 27 Constr: 20 0/0/20 Lit: 478 Watch. Lit: 169
0.00/0.00	c Obj. Vars: 27 (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     27       20      478   23      175     956      0 -2147483648 0.00
0.00/0.00	c Initial Lower Bound: 21
0.00/0.00	c Initial Path Cost: 0
0.00/0.01	c      101     27      221     4181   18     1219    1052    201   8416 0.01
0.00/0.01	o 51
0.00/0.03	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.03	c      105     27      229     4314   18     1313    1010    209   8076 0.01
0.00/0.03	o 45
0.00/0.05	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.05	c      141     27      303     5621   18     1590    1010    283   3916 0.04
0.00/0.05	o 44
0.05/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.05/0.09	c      159     27      344     6300   18     1702    1010    324   3057 0.05
0.05/0.09	o 37
0.09/0.11	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.11	c      213     27      457     8212   17     2070    1010    437   2366 0.09
0.09/0.11	o 35
0.09/0.12	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.12	c      249     27      537     9451   17     2328    1010    517   2165 0.12
0.09/0.12	o 34
0.19/0.27	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.27	c      253     27      548     9654   17     2390    1010    528   2108 0.12
0.19/0.27	c      356     27      788    13122   16     3270    1112    768   1797 0.20
0.19/0.27	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 
0.19/0.27	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.27	c    8      456     40      592     1016    15951    996   1652 0.28
0.19/0.27	c Objective: 34
0.19/0.27	s OPTIMUM FOUND
0.19/0.27	c Total time: 0.276 s

Verifier Data 

OK	34

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1880420-1245133790/watcher-1880420-1245133790 -o /tmp/evaluation-result-1880420-1245133790/solver-1880420-1245133790 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880420-1245133790.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: 0.92 0.98 0.99 3/64 1305
/proc/meminfo: memFree=1925784/2055920 swapFree=4181536/4192956
[pid=1305] ppid=1303 vsize=26316 CPUtime=0
/proc/1305/stat : 1305 (bsolo) R 1303 1305 1160 0 -1 4194304 382 0 0 0 0 0 0 0 18 0 1 0 180979159 26947584 341 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1305/statm: 6579 341 291 640 0 5935 0

[startup+0.066133 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1305
/proc/meminfo: memFree=1925784/2055920 swapFree=4181536/4192956
[pid=1305] ppid=1303 vsize=18648 CPUtime=0.05
/proc/1305/stat : 1305 (bsolo) R 1303 1305 1160 0 -1 4194304 2229 0 0 0 5 0 0 0 18 0 1 0 180979159 19095552 379 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1305/statm: 4662 379 293 640 0 4018 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 18648

[startup+0.101136 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1305
/proc/meminfo: memFree=1925784/2055920 swapFree=4181536/4192956
[pid=1305] ppid=1303 vsize=19244 CPUtime=0.09
/proc/1305/stat : 1305 (bsolo) R 1303 1305 1160 0 -1 4194304 2511 0 0 0 9 0 0 0 18 0 1 0 180979159 19705856 480 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1305/statm: 4811 480 293 640 0 4167 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 19244

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

[startup+0.201147 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1305
/proc/meminfo: memFree=1925784/2055920 swapFree=4181536/4192956
[pid=1305] ppid=1303 vsize=19224 CPUtime=0.19
/proc/1305/stat : 1305 (bsolo) R 1303 1305 1160 0 -1 4194304 2715 0 0 0 19 0 0 0 18 0 1 0 180979159 19685376 474 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1305/statm: 4839 475 293 640 0 4195 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 19224

Child status: 0
Real time (s): 0.27896
CPU time (s): 0.277957
CPU user time (s): 0.264959
CPU system time (s): 0.012998
CPU usage (%): 99.6404
Max. virtual memory (cumulated for all children) (KiB): 19244

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.264959
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3888
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= 2
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node19 at 2009-06-16 08:29:51
IDJOB=1880420
IDBENCH=1860
IDSOLVER=701
FILE ID=node19/1880420-1245133790
PBS_JOBID= 9363729
Free space on /tmp= 66160 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-bm23.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880420-1245133790/watcher-1880420-1245133790 -o /tmp/evaluation-result-1880420-1245133790/solver-1880420-1245133790 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880420-1245133790.opb

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

MD5SUM BENCH= 5c5bb330d1cbd0e2ab066594a5d2a4de
RANDOM SEED=1072626897

node19.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.234
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		: 3000.234
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:       1926200 kB
Buffers:          6564 kB
Cached:          60148 kB
SwapCached:       6048 kB
Active:          58336 kB
Inactive:        16988 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1926200 kB
SwapTotal:     4192956 kB
SwapFree:      4181536 kB
Dirty:            4376 kB
Writeback:           0 kB
Mapped:          13388 kB
Slab:            40324 kB
Committed_AS:   179680 kB
PageTables:       1456 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= 66156 MiB
End job on node19 at 2009-06-16 08:29:51