Trace number 454011

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-13 0.344947 0.345188

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_10_5.opb
MD5SUM9d121e9bd43af8a355e8c7cd150cfe9a
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-13
Best CPU time to get the best result obtained on this benchmark0.194969
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -13
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 constraint17
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)606
Sum of products size (including duplicates)1212
Number of different products303
Sum of products size606

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/454011-1178019483/instance-454011-1178019483.opb
0.00/0.00	c File size is 7276 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: 656 Constr: 1312 656/50/606 Lit: 4848 Watch. Lit: 3636
0.00/0.00	c Obj. Vars: 50 (7.62195 % 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      303      909    3      606     100      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      304      959    3      617     267      1      0 0.01
0.00/0.01	o -10	0.009
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        8     50      313     1313    4      645     284     10    800 0.01
0.00/0.01	o -11	0.01
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        8     50      314     1363    4      658     300     11    800 0.01
0.00/0.01	o -12	0.01
0.05/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.05/0.09	c       14     50      321     1629    5      684     317     18   1400 0.01
0.05/0.09	c      115     50      422     5068   12      886     349    119   8214 0.01
0.05/0.09	c      365     50      672    13575   20     1386     384    369  13518 0.03
0.05/0.09	c      840     49     1147    29279   25     2335     423    844  14482 0.06
0.05/0.09	o -13	0.088
0.29/0.34	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.34	c     1246     49      708    14118   19     1440     329    405  14000 0.09
0.29/0.34	c     1347     49      809    17351   21     1642     362    506  14031 0.10
0.29/0.34	c     1597     48     1059    25142   23     2141     399    756  14258 0.11
0.29/0.34	c     2072     47      709    12718   17     1428     439    406  14191 0.15
0.29/0.34	c     2885     45      675    11215   16     1358     483    372  13937 0.21
0.29/0.34	c     4205     36     1133    19878   17     2265     532    830  13970 0.30
0.29/0.34	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
0.29/0.34	v -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 x39 x40 x41 -x42 x43 -x44 x45 -x46 -x47 -x48 x49 x50
0.29/0.34	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.29/0.34	c   13     4562    122     4763      615     5076    312  13457 0.34
0.29/0.34	c Objective: -13
0.29/0.34	s OPTIMUM FOUND
0.29/0.34	c Total time: 0.339 s

Verifier Data (download as text)

OK	-13

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node51/watcher-454011-1178019483 -o ROOT/results/node51/solver-454011-1178019483 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/454011-1178019483/instance-454011-1178019483.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: 0.98 1.16 1.16 3/64 22103
/proc/meminfo: memFree=1805368/2055920 swapFree=4183264/4192956
[pid=22103] ppid=22101 vsize=19556 CPUtime=0
/proc/22103/stat : 22103 (bsolo3.0.17) R 22101 22103 22038 0 -1 4194304 372 0 0 0 0 0 0 0 18 0 1 0 156793458 20025344 342 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 2958184 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22103/statm: 4889 342 289 324 0 3957 0

[startup+0.0543599 s]
/proc/loadavg: 0.98 1.16 1.16 3/64 22103
/proc/meminfo: memFree=1805368/2055920 swapFree=4183264/4192956
[pid=22103] ppid=22101 vsize=4464 CPUtime=0.05
/proc/22103/stat : 22103 (bsolo3.0.17) R 22101 22103 22038 0 -1 4194304 538 0 0 0 5 0 0 0 18 0 1 0 156793458 4571136 506 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4160521800 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22103/statm: 1116 506 311 324 0 186 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4464

[startup+0.102364 s]
/proc/loadavg: 0.98 1.16 1.16 3/64 22103
/proc/meminfo: memFree=1805368/2055920 swapFree=4183264/4192956
[pid=22103] ppid=22101 vsize=4728 CPUtime=0.09
/proc/22103/stat : 22103 (bsolo3.0.17) R 22101 22103 22038 0 -1 4194304 576 0 0 0 9 0 0 0 18 0 1 0 156793458 4841472 544 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134551353 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22103/statm: 1182 544 311 324 0 252 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4728

[startup+0.302383 s]
/proc/loadavg: 0.98 1.16 1.16 3/64 22103
/proc/meminfo: memFree=1805368/2055920 swapFree=4183264/4192956
[pid=22103] ppid=22101 vsize=4728 CPUtime=0.29
/proc/22103/stat : 22103 (bsolo3.0.17) R 22101 22103 22038 0 -1 4194304 576 0 0 0 29 0 0 0 19 0 1 0 156793458 4841472 544 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134573586 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22103/statm: 1182 544 311 324 0 252 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4728

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

Child status: 0
Real time (s): 0.345188
CPU time (s): 0.344947
CPU user time (s): 0.340948
CPU system time (s): 0.003999
CPU usage (%): 99.9301
Max. virtual memory (cumulated for all children) (KiB): 4728

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.340948
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= 580
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= 0

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node51 on Tue May  1 11:38:03 UTC 2007

IDJOB= 454011
IDBENCH= 48168
IDSOLVER= 199
FILE ID= node51/454011-1178019483

PBS_JOBID= 4728367

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_5.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/454011-1178019483/instance-454011-1178019483.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node51/watcher-454011-1178019483 -o ROOT/results/node51/solver-454011-1178019483 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/454011-1178019483/instance-454011-1178019483.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  9d121e9bd43af8a355e8c7cd150cfe9a

RANDOM SEED= 134254309

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node51.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		: 3000.223
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		: 3000.223
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:       1805776 kB
Buffers:         33248 kB
Cached:         144080 kB
SwapCached:       3552 kB
Active:          64684 kB
Inactive:       122116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1805776 kB
SwapTotal:     4192956 kB
SwapFree:      4183264 kB
Dirty:            6784 kB
Writeback:           0 kB
Mapped:          15248 kB
Slab:            49348 kB
Committed_AS:  5417124 kB
PageTables:       1408 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 node51 on Tue May  1 11:38:04 UTC 2007