Trace number 363569

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 3.0.16OPT3089 0.175972 0.178528

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 3.0.16 - 04/04/2007 : 1458 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 Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/363569-1177029519/instance-363569-1177029519.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	0.009 * 
0.00/0.05	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.05	c       25     32       42      410    9      157     227     27   2777 0.01
0.00/0.05	c      126     32      168     2054   12      416     250    153   3818 0.03
0.00/0.05	o 3089	0.056 * 
0.09/0.17	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.17	c      222     32      142     1683   11      343     227    127   3964 0.06
0.09/0.17	c      322     32      143     1703   11      348     250    128   3926 0.08
0.09/0.17	c      572     29      176     1647    9      410     276    161   3788 0.15
0.09/0.17	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
0.09/0.17	v -x32 -x33
0.09/0.17	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.17	c    6      651     52      771      280     2358    265   3763 0.17
0.09/0.17	c Objective: 3089
0.09/0.17	s OPTIMUM FOUND
0.09/0.17	c Total time: 0.173 s

Verifier Data (download as text)

OK	3089

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node26/watcher-363569-1177029519 -o ROOT/results/node26/solver-363569-1177029519 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/363569-1177029519/instance-363569-1177029519.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 0.98 0.99 3/77 31672
/proc/meminfo: memFree=1683776/2055920 swapFree=4170240/4192956
[pid=31672] ppid=31670 vsize=19548 CPUtime=0
/proc/31672/stat : 31672 (bsolo3.0.16) R 31670 31672 31299 0 -1 4194304 391 0 0 0 0 0 0 0 18 0 1 0 150868764 20017152 358 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 134556976 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31672/statm: 4887 360 306 324 0 3956 0

[startup+0.103155 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 31672
/proc/meminfo: memFree=1683776/2055920 swapFree=4170240/4192956
[pid=31672] ppid=31670 vsize=12788 CPUtime=0.09
/proc/31672/stat : 31672 (bsolo3.0.16) R 31670 31672 31299 0 -1 4194304 994 0 0 0 9 0 0 0 18 0 1 0 150868764 13094912 597 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 13026885 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31672/statm: 3177 597 392 324 0 2246 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12788

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

[startup+0.103155 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 31672
/proc/meminfo: memFree=1683776/2055920 swapFree=4170240/4192956
[pid=31672] ppid=31670 vsize=12788 CPUtime=0.09
/proc/31672/stat : 31672 (bsolo3.0.16) R 31670 31672 31299 0 -1 4194304 994 0 0 0 9 0 0 0 18 0 1 0 150868764 13094912 597 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 13026885 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31672/statm: 3177 597 392 324 0 2246 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12788

Child status: 0
Real time (s): 0.178528
CPU time (s): 0.175972
CPU user time (s): 0.165974
CPU system time (s): 0.009998
CPU usage (%): 98.5683
Max. virtual memory (cumulated for all children) (KiB): 12788

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.165974
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1322
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= 4

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node26 on Fri Apr 20 00:38:40 UTC 2007

IDJOB= 363569
IDBENCH= 1863
IDSOLVER= 163
FILE ID= node26/363569-1177029519

PBS_JOBID= 4630631

Free space on /tmp= 66432 MiB

SOLVER NAME= bsolo 3.0.16
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= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/363569-1177029519/instance-363569-1177029519.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-363569-1177029519 -o ROOT/results/node26/solver-363569-1177029519 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/363569-1177029519/instance-363569-1177029519.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  bdb886a987b9ca760f19a56a745e3c06

RANDOM SEED= 916189267

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:       1684312 kB
Buffers:         38512 kB
Cached:         245660 kB
SwapCached:       3128 kB
Active:         111576 kB
Inactive:       195944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1684312 kB
SwapTotal:     4192956 kB
SwapFree:      4170240 kB
Dirty:            4384 kB
Writeback:           0 kB
Mapped:          30844 kB
Slab:            49440 kB
Committed_AS:  1042128 kB
PageTables:       1716 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= 66432 MiB

End job on node26 on Fri Apr 20 00:38:40 UTC 2007