Trace number 432829

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
bsolo 3.0.17OPT34 1.25481 1.25698

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 benchmark0.085986
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 (download as text)

0.00/0.00	c bsolo beta version 3.0.17 - 27/04/2007 : 1600 GMT
0.00/0.00	c Developed by Vasco Manquinho 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 Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/432829-1177950434/instance-432829-1177950434.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: 0.001 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: 0.001 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      0 0.00
0.00/0.00	c Initial Lower Bound: 21
0.00/0.00	c Initial Path Cost: 0
0.00/0.05	c      101     27      121     2040   16      428    1052    101  16833 0.01
0.00/0.05	c      252     27      272     4184   15      738    1158    252  21000 0.01
0.00/0.05	c      478     27      498     7205   14     1181    1274    478  22761 0.02
0.00/0.05	c      816     27      836    11700   13     1877    1402    816  20923 0.04
0.00/0.05	o 58	0.049
0.05/0.07	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.05/0.07	c      981     27     1002    14069   14     2210    1010    982  20020 0.05
0.05/0.07	o 43	0.07 * 
0.05/0.08	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.05/0.08	c     1008     27     1030    14535   14     2289    1010   1010  14400 0.07
0.05/0.08	o 41	0.076 * 
0.19/0.28	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.28	c     1008     27      526     7502   14     1264    1010    506  13090 0.08
0.19/0.28	c     1109     27      641     9105   14     1488    1112    621   7701 0.14
0.19/0.28	o 38	0.282 * 
1.00/1.08	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
1.00/1.08	c     1284     27      876    12256   13     1978    1010    856   4553 0.28
1.00/1.08	c     1384     26     1019    13589   13     2271    1112    999   3750 0.37
1.00/1.08	c     1636     26      760     9613   12     1727    1224    740   3063 0.53
1.00/1.08	c     2111     26      664     8090   12     1530    1347    644   2665 0.79
1.00/1.08	o 35	1.079 * 
1.19/1.24	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
1.19/1.24	c     2473     24     1175    13037   11     2570    1004   1155   2291 1.08
1.19/1.24	c     2574     24      649     6913   10     1509    1105    629   2251 1.14
1.19/1.24	o 34	1.238 * 
1.19/1.25	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
1.19/1.25	c     2723     19      838     8194    9     1890     994    818   2199 1.24
1.19/1.25	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
1.19/1.25	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
1.19/1.25	c   15     2750     78     2965      868     8301    848   2198 1.25
1.19/1.25	c Objective: 34
1.19/1.25	s OPTIMUM FOUND
1.19/1.25	c Total time: 1.251 s

Verifier Data (download as text)

OK	34

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node5/watcher-432829-1177950434 -o ROOT/results/node5/solver-432829-1177950434 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/432829-1177950434/instance-432829-1177950434.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: 0.79 0.95 0.96 3/77 29420
/proc/meminfo: memFree=1820608/2055920 swapFree=4151596/4192956
[pid=29420] ppid=29418 vsize=19552 CPUtime=0
/proc/29420/stat : 29420 (bsolo3.0.17) R 29418 29420 28328 0 -1 4194304 362 0 0 0 0 0 0 0 18 0 1 0 271081033 20021248 332 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 8328827 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29420/statm: 4888 332 279 324 0 3957 0

[startup+0.05851 s]
/proc/loadavg: 0.79 0.95 0.96 3/77 29420
/proc/meminfo: memFree=1820608/2055920 swapFree=4151596/4192956
[pid=29420] ppid=29418 vsize=12420 CPUtime=0.05
/proc/29420/stat : 29420 (bsolo3.0.17) R 29418 29420 28328 0 -1 4194304 852 0 0 0 5 0 0 0 18 0 1 0 271081033 12718080 601 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29420/statm: 3225 609 393 324 0 2295 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 12420

[startup+0.101514 s]
/proc/loadavg: 0.79 0.95 0.96 3/77 29420
/proc/meminfo: memFree=1820608/2055920 swapFree=4151596/4192956
[pid=29420] ppid=29418 vsize=12972 CPUtime=0.09
/proc/29420/stat : 29420 (bsolo3.0.17) R 29418 29420 28328 0 -1 4194304 2099 0 0 0 8 1 0 0 18 0 1 0 271081033 13283328 621 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 8328773 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29420/statm: 3108 607 393 324 0 2178 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12972

[startup+0.301538 s]
/proc/loadavg: 0.79 0.95 0.96 3/77 29420
/proc/meminfo: memFree=1820608/2055920 swapFree=4151596/4192956
[pid=29420] ppid=29418 vsize=12812 CPUtime=0.29
/proc/29420/stat : 29420 (bsolo3.0.17) R 29418 29420 28328 0 -1 4194304 7253 0 0 0 26 3 0 0 19 0 1 0 271081033 13119488 621 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29420/statm: 3108 608 393 324 0 2178 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12812

[startup+0.701582 s]
/proc/loadavg: 0.79 0.95 0.96 3/77 29420
/proc/meminfo: memFree=1820608/2055920 swapFree=4151596/4192956
[pid=29420] ppid=29418 vsize=12888 CPUtime=0.69
/proc/29420/stat : 29420 (bsolo3.0.17) R 29418 29420 28328 0 -1 4194304 9995 0 0 0 65 4 0 0 23 0 1 0 271081033 13197312 679 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 135261495 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29420/statm: 3222 679 393 324 0 2292 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12888

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

[startup+1.10563 s]
/proc/loadavg: 0.79 0.95 0.96 2/78 29421
/proc/meminfo: memFree=1819384/2055920 swapFree=4151596/4192956
[pid=29420] ppid=29418 vsize=12888 CPUtime=1.09
/proc/29420/stat : 29420 (bsolo3.0.17) R 29418 29420 28328 0 -1 4194304 11236 0 0 0 104 5 0 0 25 0 1 0 271081033 13197312 690 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29420/statm: 3222 690 393 324 0 2292 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 12888

[startup+1.20164 s]
/proc/loadavg: 0.79 0.95 0.96 2/78 29421
/proc/meminfo: memFree=1819384/2055920 swapFree=4151596/4192956
[pid=29420] ppid=29418 vsize=12888 CPUtime=1.19
/proc/29420/stat : 29420 (bsolo3.0.17) R 29418 29420 28328 0 -1 4194304 11400 0 0 0 114 5 0 0 25 0 1 0 271081033 13197312 690 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29420/statm: 3222 690 393 324 0 2292 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 12888

Child status: 0
Real time (s): 1.25698
CPU time (s): 1.25481
CPU user time (s): 1.19682
CPU system time (s): 0.057991
CPU usage (%): 99.827
Max. virtual memory (cumulated for all children) (KiB): 13052

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.19682
system time used= 0.057991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11488
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= 12
involuntary context switches= 27

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Mon Apr 30 16:27:14 UTC 2007

IDJOB= 432829
IDBENCH= 1860
IDSOLVER= 199
FILE ID= node5/432829-1177950434

PBS_JOBID= 4727680

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-bm23.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/432829-1177950434/instance-432829-1177950434.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-432829-1177950434 -o ROOT/results/node5/solver-432829-1177950434 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/432829-1177950434/instance-432829-1177950434.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  5c5bb330d1cbd0e2ab066594a5d2a4de

RANDOM SEED= 195782258

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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		: 3000.232
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		: 3000.232
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:       1821016 kB
Buffers:         32968 kB
Cached:         109840 kB
SwapCached:       9376 kB
Active:          56512 kB
Inactive:       112100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1821016 kB
SwapTotal:     4192956 kB
SwapFree:      4151596 kB
Dirty:            6760 kB
Writeback:           0 kB
Mapped:          32828 kB
Slab:            51908 kB
Committed_AS:  9211036 kB
PageTables:       1724 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= 66558 MiB

End job on node5 on Mon Apr 30 16:27:15 UTC 2007