Trace number 373422

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 3.0.16OPT18 0.247961 0.249505

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-LIN/submittedPB07/
aksoy/area_opers/normalized-fir02_area_opers.opb
MD5SUM918383404e7b51b9b3205c84ccd5b510
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark18
Best CPU time to get the best result obtained on this benchmark0.251961
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 18
Optimality of the best value was proved YES
Number of variables1464
Total number of constraints2689
Number of constraints which are clauses2689
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint31
Number of terms in the objective function 759
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 759
Number of bits of the sum of numbers in the objective function 10
Biggest number in a constraint 2
Number of bits of the biggest number in a constraint 2
Biggest sum of numbers in a constraint 759
Number of bits of the biggest sum of numbers10
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/373422-1177365191/instance-373422-1177365191.opb
0.00/0.00	c File size is 79160 bytes.
0.01/0.01	c Highest Coefficient sum: 759
0.01/0.01	c Parsing was ok!!
0.01/0.01	c Total parsing time: 0.015 s
0.01/0.02	c Var: 1464 Constr: 2689 2689/0/0 Lit: 6764 Watch. Lit: 5375
0.01/0.02	c Obj. Vars: 759 (51.8443 % of total variables)
0.01/0.03	c Formula reductions applied at preprocessing
0.01/0.03	c Pre-processing Time: 0.035 s
0.19/0.23	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.23	c        0   1438     2676     6741    2     5352     891      0      0 0.04
0.19/0.23	c Initial Lower Bound: 18
0.19/0.23	c Initial Path Cost: 4
0.19/0.23	o 19	0.236
0.19/0.24	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.24	c        0   1438     2677     7479    2     6077    1891      1      0 0.24
0.19/0.24	o 18	0.241 * 
0.19/0.24	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.24	c        0   1438     2678     8217    3     6803    2891      2      0 0.24
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0.19/0.24	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.24	c    2        1      1      822     2681     8219      5      4 0.24
0.19/0.24	c Objective: 18
0.19/0.24	s OPTIMUM FOUND
0.19/0.24	c Total time: 0.243 s

Verifier Data (download as text)

OK	18

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node14/watcher-373422-1177365191 -o ROOT/results/node14/solver-373422-1177365191 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/373422-1177365191/instance-373422-1177365191.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: 0.56 0.81 0.89 3/77 17129
/proc/meminfo: memFree=1505096/2055920 swapFree=4148784/4192956
[pid=17129] ppid=17127 vsize=11816 CPUtime=0
/proc/17129/stat : 17129 (bsolo3.0.16) R 17127 17129 16404 0 -1 4194304 365 0 0 0 0 0 0 0 18 0 1 0 184436921 12099584 335 18446744073709551615 134512640 135841103 4294956560 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/17129/statm: 2954 335 281 324 0 2003 0

[startup+0.0173649 s]
/proc/loadavg: 0.56 0.81 0.89 3/77 17129
/proc/meminfo: memFree=1505096/2055920 swapFree=4148784/4192956
[pid=17129] ppid=17127 vsize=4420 CPUtime=0.01
/proc/17129/stat : 17129 (bsolo3.0.16) R 17127 17129 16404 0 -1 4194304 466 0 0 0 1 0 0 0 18 0 1 0 184436921 4526080 436 18446744073709551615 134512640 135841103 4294956560 18446744073709551615 4160527629 0 0 4096 16384 0 0 0 17 1 0 0
/proc/17129/statm: 1105 436 300 324 0 154 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4420

[startup+0.101373 s]
/proc/loadavg: 0.56 0.81 0.89 3/77 17129
/proc/meminfo: memFree=1505096/2055920 swapFree=4148784/4192956
[pid=17129] ppid=17127 vsize=5060 CPUtime=0.09
/proc/17129/stat : 17129 (bsolo3.0.16) R 17127 17129 16404 0 -1 4194304 722 0 0 0 9 0 0 0 18 0 1 0 184436921 5181440 672 18446744073709551615 134512640 135841103 4294956560 18446744073709551615 135469315 0 0 4096 16384 0 0 0 17 1 0 0
/proc/17129/statm: 1265 672 332 324 0 334 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5060

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

[startup+0.201382 s]
/proc/loadavg: 0.56 0.81 0.89 3/77 17129
/proc/meminfo: memFree=1505096/2055920 swapFree=4148784/4192956
[pid=17129] ppid=17127 vsize=7016 CPUtime=0.19
/proc/17129/stat : 17129 (bsolo3.0.16) R 17127 17129 16404 0 -1 4194304 1143 0 0 0 19 0 0 0 18 0 1 0 184436921 7184384 870 18446744073709551615 134512640 135841103 4294956560 18446744073709551615 135259648 0 0 4096 16384 0 0 0 17 1 0 0
/proc/17129/statm: 1754 876 354 324 0 823 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 7016

Child status: 0
Real time (s): 0.249505
CPU time (s): 0.247961
CPU user time (s): 0.236963
CPU system time (s): 0.010998
CPU usage (%): 99.3811
Max. virtual memory (cumulated for all children) (KiB): 7016

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.236963
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1715
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= 1

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Mon Apr 23 21:53:11 UTC 2007

IDJOB= 373422
IDBENCH= 25042
IDSOLVER= 163
FILE ID= node14/373422-1177365191

PBS_JOBID= 4675271

Free space on /tmp= 66205 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-LIN/submittedPB07/aksoy/area_opers/normalized-fir02_area_opers.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/373422-1177365191/instance-373422-1177365191.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-373422-1177365191 -o ROOT/results/node14/solver-373422-1177365191 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/373422-1177365191/instance-373422-1177365191.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  918383404e7b51b9b3205c84ccd5b510

RANDOM SEED= 9869056

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.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		: 3000.227
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		: 3000.227
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:       1505696 kB
Buffers:         82496 kB
Cached:         366452 kB
SwapCached:      11820 kB
Active:         227808 kB
Inactive:       245072 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1505696 kB
SwapTotal:     4192956 kB
SwapFree:      4148784 kB
Dirty:            4668 kB
Writeback:           0 kB
Mapped:          30492 kB
Slab:            62848 kB
Committed_AS:  7778724 kB
PageTables:       1784 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= 66205 MiB

End job on node14 on Mon Apr 23 21:53:12 UTC 2007