Trace number 433434

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 3.0.17OPT11 0.019996 0.0236581

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/
submitted-PB06/manquiho/golomb-rulers/normalized-OGR_5.opb
MD5SUMf7ce1bbc714a6b404586716e62ae4fc9
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark11
Best CPU time to get the best result obtained on this benchmark0.013997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 11
Optimality of the best value was proved YES
Number of variables75
Total number of constraints104
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 constraints104
Minimum length of a constraint10
Maximum length of a constraint21
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 32
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 173
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/433434-1177959806/instance-433434-1177959806.opb
0.00/0.00	c File size is 12435 bytes.
0.00/0.00	c Highest Coefficient sum: 173
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.002 s
0.00/0.00	c Var: 75 Constr: 104 0/0/104 Lit: 1640 Watch. Lit: 476
0.00/0.00	c Obj. Vars: 5 (6.66667 % of total variables)
0.00/0.00	c Pre-processing Time: 0.004 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0     75      104     1640   15      872    3280      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.00/0.01	o 28	0.009
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c       63     75      168     2503   14     1333    3290     64   7000 0.01
0.00/0.01	o 12	0.012
0.00/0.02	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.02	c      111     75      217     3209   14     1330    3290    113   8538 0.01
0.00/0.02	o 11	0.017
0.00/0.02	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.02	c      166     70      273     3890   14     1436    3288    169   9764 0.02
0.00/0.02	v x1 x2 -x3 x4 -x5 x16 x17 x18 -x19 -x20 -x21 -x22 -x23 x24 -x25 x75 -x6 x7 -x8 -x9 -x10 -x74 -x73 -x72 -x71 -x70 -x11 -x12 -x13 -x14
0.00/0.02	v -x15 -x69 -x68 x67 -x66 -x65 -x64 x63 -x62 x61 x60 -x59 x58 x57 x56 -x55 -x54 x53 x52 -x51 -x50 -x49 x48 -x47 x46 x45 x44 x43 -x42
0.00/0.02	v x41 x40 x39 x38 x37 x36 x35 x34 x33 x32 x31 x30 x29 x28 x27 x26
0.00/0.02	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.00/0.02	c    3      177     16      261      284     3951    180   9833 0.02
0.00/0.02	c Objective: 11
0.00/0.02	s OPTIMUM FOUND
0.00/0.02	c Total time: 0.018 s

Verifier Data (download as text)

OK	11

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node50/watcher-433434-1177959806 -o ROOT/results/node50/solver-433434-1177959806 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/433434-1177959806/instance-433434-1177959806.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: 0.95 0.99 0.99 3/64 27493
/proc/meminfo: memFree=1873008/2055920 swapFree=4183752/4192956
[pid=27493] ppid=27491 vsize=19564 CPUtime=0
/proc/27493/stat : 27493 (bsolo3.0.17) R 27491 27493 26548 0 -1 4194304 361 0 0 0 0 0 0 0 18 0 1 0 150825783 20033536 331 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 8353403 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27493/statm: 4891 331 279 324 0 3957 0

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

Child status: 0
Real time (s): 0.0236581
CPU time (s): 0.019996
CPU user time (s): 0.017997
CPU system time (s): 0.001999
CPU usage (%): 84.5208
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.017997
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 428
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 0.003999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node50 on Mon Apr 30 19:03:26 UTC 2007

IDJOB= 433434
IDBENCH= 2629
IDSOLVER= 199
FILE ID= node50/433434-1177959806

PBS_JOBID= 4727689

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB06/final/normalized-PB06/OPT-SMALLINT/submitted-PB06/manquiho/golomb-rulers/normalized-OGR_5.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/433434-1177959806/instance-433434-1177959806.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-433434-1177959806 -o ROOT/results/node50/solver-433434-1177959806 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/433434-1177959806/instance-433434-1177959806.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  f7ce1bbc714a6b404586716e62ae4fc9

RANDOM SEED= 382830499

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node50.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:       1873416 kB
Buffers:          9876 kB
Cached:         102292 kB
SwapCached:       3092 kB
Active:          24684 kB
Inactive:        97104 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1873416 kB
SwapTotal:     4192956 kB
SwapFree:      4183752 kB
Dirty:            6588 kB
Writeback:           0 kB
Mapped:          15568 kB
Slab:            46688 kB
Committed_AS:  3100628 kB
PageTables:       1460 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 node50 on Mon Apr 30 19:03:26 UTC 2007