Trace number 432830

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 3.0.17OPT3089 0.166973 0.169164

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/
MIPLIB/miplib/normalized-mps-v2-20-10-p0033.opb
MD5SUMbdb886a987b9ca760f19a56a745e3c06
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3089
Best CPU time to get the best result obtained on this benchmark0.016996
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3089
Optimality of the best value was proved YES
Number of variables33
Total number of constraints15
Number of constraints which are clauses1
Number of constraints which are cardinality constraints (but not clauses)3
Number of constraints which are nor clauses,nor cardinality constraints11
Minimum length of a constraint2
Maximum length of a constraint19
Number of terms in the objective function 33
Biggest coefficient in the objective function 517
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 7276
Number of bits of the sum of numbers in the objective function 13
Biggest number in a constraint 1656
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 7276
Number of bits of the biggest sum of numbers13
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/432830-1177950437/instance-432830-1177950437.opb
0.00/0.00	c File size is 1353 bytes.
0.00/0.00	c Highest Coefficient sum: 7276
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: 33 Constr: 15 4/3/8 Lit: 98 Watch. Lit: 63
0.00/0.00	c Obj. Vars: 33 (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     32       15       98    6       67     163      0      0 0.00
0.00/0.00	c Initial Lower Bound: 2820
0.00/0.00	c Initial Path Cost: 0
0.00/0.00	o 3345	0.003
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c       14     32       30      252    8      117     227     15   4666 0.00
0.00/0.01	o 3095	0.011 * 
0.00/0.07	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.07	c       29     32       47      459    9      169     227     32   2636 0.01
0.00/0.07	c      132     32      180     2041   11      438     250    165   2588 0.05
0.00/0.07	o 3089	0.076 * 
0.09/0.16	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.16	c      196     32      261     3098   11      620     227    246   2578 0.08
0.09/0.16	c      296     32      161     1667   10      381     250    146   2368 0.12
0.09/0.16	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
0.09/0.16	v -x33
0.09/0.16	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.16	c    5      395     18      455      167     1569    152   2408 0.16
0.09/0.16	c Objective: 3089
0.09/0.16	s OPTIMUM FOUND
0.09/0.16	c Total time: 0.164 s

Verifier Data (download as text)

OK	3089

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-432830-1177950437 -o ROOT/results/node5/solver-432830-1177950437 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/432830-1177950437/instance-432830-1177950437.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 29468
/proc/meminfo: memFree=1820544/2055920 swapFree=4151596/4192956
[pid=29468] ppid=29466 vsize=19548 CPUtime=0
/proc/29468/stat : 29468 (bsolo3.0.17) R 29466 29468 28328 0 -1 4194304 387 0 0 0 0 0 0 0 18 0 1 0 271081346 20017152 356 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134556784 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29468/statm: 4887 358 304 324 0 3957 0

[startup+0.0950739 s]
/proc/loadavg: 0.79 0.95 0.96 3/77 29468
/proc/meminfo: memFree=1820544/2055920 swapFree=4151596/4192956
[pid=29468] ppid=29466 vsize=12836 CPUtime=0.08
/proc/29468/stat : 29468 (bsolo3.0.17) R 29466 29468 28328 0 -1 4194304 901 0 0 0 8 0 0 0 18 0 1 0 271081346 13144064 599 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 8328773 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29468/statm: 3170 598 392 324 0 2240 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 12836

[startup+0.101074 s]
/proc/loadavg: 0.79 0.95 0.96 3/77 29468
/proc/meminfo: memFree=1820544/2055920 swapFree=4151596/4192956
[pid=29468] ppid=29466 vsize=12836 CPUtime=0.09
/proc/29468/stat : 29468 (bsolo3.0.17) R 29466 29468 28328 0 -1 4194304 919 0 0 0 9 0 0 0 18 0 1 0 271081346 13144064 599 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 8328773 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29468/statm: 3189 599 393 324 0 2259 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12836

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

Child status: 0
Real time (s): 0.169164
CPU time (s): 0.166973
CPU user time (s): 0.159975
CPU system time (s): 0.006998
CPU usage (%): 98.7048
Max. virtual memory (cumulated for all children) (KiB): 12836

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.159975
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 984
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= 3

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Mon Apr 30 16:27:17 UTC 2007

IDJOB= 432830
IDBENCH= 1863
IDSOLVER= 199
FILE ID= node5/432830-1177950437

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-p0033.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/432830-1177950437/instance-432830-1177950437.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-432830-1177950437 -o ROOT/results/node5/solver-432830-1177950437 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/432830-1177950437/instance-432830-1177950437.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  bdb886a987b9ca760f19a56a745e3c06

RANDOM SEED= 731593704

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:       1820952 kB
Buffers:         32980 kB
Cached:         109896 kB
SwapCached:       9376 kB
Active:          56584 kB
Inactive:       112060 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1820952 kB
SwapTotal:     4192956 kB
SwapFree:      4151596 kB
Dirty:            6776 kB
Writeback:           0 kB
Mapped:          32828 kB
Slab:            51968 kB
Committed_AS:  9211052 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 16:27:17 UTC 2007