Trace number 454731

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 3.0.17OPT-12 0.481926 0.485214

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_10_2.opb
MD5SUM8a07cc5cd91ca4bb254ab7dda2eb6992
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-12
Best CPU time to get the best result obtained on this benchmark0.18997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -12
Optimality of the best value was proved YES
Number of variables50
Total number of constraints50
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 constraints50
Minimum length of a constraint10
Maximum length of a constraint19
Number of terms in the objective function 50
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 50
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)616
Sum of products size (including duplicates)1232
Number of different products308
Sum of products size616

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/454731-1178030244/instance-454731-1178030244.opb
0.00/0.00	c File size is 7384 bytes.
0.00/0.00	c Highest Coefficient sum: 50
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.004 s
0.00/0.00	c Var: 666 Constr: 1332 666/50/616 Lit: 4928 Watch. Lit: 3696
0.00/0.00	c Obj. Vars: 50 (7.50751 % of total variables)
0.00/0.01	c Pre-processing Time: 0.009 s
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0     50      308      924    3      616     102      0      0 0.01
0.00/0.01	c Switching off LPR mode.
0.00/0.01	o -9	0.009
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0     50      309      974    3      627     269      1      0 0.01
0.00/0.01	o -10	0.01
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c       29     50      339     2111    6      697     285     31   2900 0.01
0.00/0.01	o -11	0.01
0.00/0.03	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.03	c       29     50      340     2161    6      710     302     32   2900 0.01
0.00/0.03	c      129     50      440     5682   12      910     333    132   9214 0.01
0.00/0.03	c      379     50      690    14485   20     1410     367    382  13535 0.03
0.00/0.03	o -12	0.033
0.39/0.48	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.39/0.48	c      455     50      767    17169   22     1576     319    459  13787 0.03
0.39/0.48	c      556     50      868    20589   23     1778     351    560  14256 0.04
0.39/0.48	c      806     50     1118    29058   25     2278     387    810  13896 0.06
0.39/0.48	c     1281     50      758    16047   21     1528     426    450  13774 0.09
0.39/0.48	c     2095     49      730    14411   19     1471     469    422  13343 0.16
0.39/0.48	c     3415     47     1187    28295   23     2383     516    879  12984 0.26
0.39/0.48	c     5496     37      604     7155   11     1207     568    296  12434 0.44
0.39/0.48	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
0.39/0.48	v -x30 -x31 -x32 -x33 -x34 -x35 -x36 x37 -x38 -x39 x40 -x41 -x42 x43 x44 -x45 -x46 x47 -x48 -x49 x50
0.39/0.48	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.39/0.48	c   12     6068    230     6377     1176    16435    868  12694 0.48
0.39/0.48	c Objective: -12
0.39/0.48	s OPTIMUM FOUND
0.39/0.48	c Total time: 0.478 s

Verifier Data (download as text)

OK	-12

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node26/watcher-454731-1178030244 -o ROOT/results/node26/solver-454731-1178030244 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/454731-1178030244/instance-454731-1178030244.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: 0.92 0.98 0.99 3/77 400
/proc/meminfo: memFree=1786048/2055920 swapFree=4170240/4192956
[pid=400] ppid=398 vsize=3932 CPUtime=0
/proc/400/stat : 400 (bsolo3.0.17) R 398 400 17988 0 -1 4194304 375 0 0 0 0 0 0 0 18 0 1 0 250941220 4026368 345 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 13026906 0 0 4096 16384 0 0 0 17 1 0 0
/proc/400/statm: 983 346 290 324 0 51 0

[startup+0.0686569 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 400
/proc/meminfo: memFree=1786048/2055920 swapFree=4170240/4192956
[pid=400] ppid=398 vsize=4596 CPUtime=0.06
/proc/400/stat : 400 (bsolo3.0.17) R 398 400 17988 0 -1 4194304 555 0 0 0 6 0 0 0 18 0 1 0 250941220 4706304 523 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134547565 0 0 4096 16384 0 0 0 17 1 0 0
/proc/400/statm: 1149 524 311 324 0 219 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4596

[startup+0.10166 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 400
/proc/meminfo: memFree=1786048/2055920 swapFree=4170240/4192956
[pid=400] ppid=398 vsize=4724 CPUtime=0.09
/proc/400/stat : 400 (bsolo3.0.17) R 398 400 17988 0 -1 4194304 576 0 0 0 9 0 0 0 18 0 1 0 250941220 4837376 544 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134550869 0 0 4096 16384 0 0 0 17 1 0 0
/proc/400/statm: 1181 544 311 324 0 251 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4724

[startup+0.301678 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 400
/proc/meminfo: memFree=1786048/2055920 swapFree=4170240/4192956
[pid=400] ppid=398 vsize=4724 CPUtime=0.29
/proc/400/stat : 400 (bsolo3.0.17) R 398 400 17988 0 -1 4194304 585 0 0 0 29 0 0 0 19 0 1 0 250941220 4837376 553 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134558629 0 0 4096 16384 0 0 0 17 1 0 0
/proc/400/statm: 1181 553 311 324 0 251 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4724

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

[startup+0.401687 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 400
/proc/meminfo: memFree=1786048/2055920 swapFree=4170240/4192956
[pid=400] ppid=398 vsize=4724 CPUtime=0.39
/proc/400/stat : 400 (bsolo3.0.17) R 398 400 17988 0 -1 4194304 585 0 0 0 39 0 0 0 20 0 1 0 250941220 4837376 553 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134572684 0 0 4096 16384 0 0 0 17 1 0 0
/proc/400/statm: 1181 553 311 324 0 251 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 4724

Child status: 0
Real time (s): 0.485214
CPU time (s): 0.481926
CPU user time (s): 0.477927
CPU system time (s): 0.003999
CPU usage (%): 99.3223
Max. virtual memory (cumulated for all children) (KiB): 4724

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.477927
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= 589
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= 9

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node26 on Tue May  1 14:37:24 UTC 2007

IDJOB= 454731
IDBENCH= 48216
IDSOLVER= 199
FILE ID= node26/454731-1178030244

PBS_JOBID= 4728359

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_10_2.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/454731-1178030244/instance-454731-1178030244.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-454731-1178030244 -o ROOT/results/node26/solver-454731-1178030244 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/454731-1178030244/instance-454731-1178030244.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  8a07cc5cd91ca4bb254ab7dda2eb6992

RANDOM SEED= 875067995

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node26.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	: 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		: 3000.213
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:       1786456 kB
Buffers:         54560 kB
Cached:         117940 kB
SwapCached:       3416 kB
Active:         115896 kB
Inactive:        86924 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1786456 kB
SwapTotal:     4192956 kB
SwapFree:      4170240 kB
Dirty:            6672 kB
Writeback:           0 kB
Mapped:          36392 kB
Slab:            52252 kB
Committed_AS:  2465472 kB
PageTables:       1732 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 node26 on Tue May  1 14:37:25 UTC 2007