Trace number 3462944

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 3.2OPT18 0.625904 0.6256

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 benchmark0.030994
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

0.00/0.00	c bsolo beta version 3.2 - 23/05/2010 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos 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 Learning Strategy: Cardinality Constraint Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Instance file HOME/instance-3462944-1307180974.opb
0.00/0.00	c File size is 79160 bytes.
0.00/0.00	c Highest Coefficient sum: 759
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: 1464 Constr: 2689 2689/0/0 Lit: 6764 Watch. Lit: 5375
0.00/0.00	c Obj. Vars: 759 (51.8443 % of total variables)
0.00/0.01	c Formula reductions applied at preprocessing
0.00/0.01	c Pre-processing Time: 0.015 s
0.09/0.15	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.15	c        0   1438     2676     6741    2     5352     891      0      0 0.01
0.09/0.15	c Initial Lower Bound: 18
0.09/0.15	c Initial Path Cost: 4
0.09/0.15	o 19
0.59/0.61	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.59/0.61	c        0   1438     2677     7479    2     6077    1891      1      0 0.15
0.59/0.61	o 18
0.59/0.62	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.59/0.62	c        0   1438     2678     8217    3     6803    2891      2      0 0.61
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0.59/0.62	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.59/0.62	c    2        1      2     1021     2682     8222      6      1 0.62
0.59/0.62	c Objective: 18
0.59/0.62	s OPTIMUM FOUND
0.59/0.62	c Total time: 0.623 s

Verifier Data

OK	18

Watcher Data

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3462944-1307180974/watcher-3462944-1307180974 -o /tmp/evaluation-result-3462944-1307180974/solver-3462944-1307180974 -C 1800 -W 1900 -M 15500 bsolo -l2 -t1800 HOME/instance-3462944-1307180974.opb 

running on 4 cores: 1,3,5,7

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): 1900 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.05 2.07 2.02 2/561 5361
/proc/meminfo: memFree=29817288/32950928 swapFree=41528364/67111528
[pid=5361] ppid=5359 vsize=11340 CPUtime=0 cores=1,3,5,7
/proc/5361/stat : 5361 (bsolo) R 5359 5361 3716 0 -1 4202496 441 0 0 0 0 0 0 0 25 0 1 0 829696148 11612160 375 33554432000 134512640 137138936 4293840640 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/5361/statm: 2835 375 184 642 0 2191 0

[startup+0.042612 s]
/proc/loadavg: 2.05 2.07 2.02 2/561 5361
/proc/meminfo: memFree=29817288/32950928 swapFree=41528364/67111528
[pid=5361] ppid=5359 vsize=11456 CPUtime=0.03 cores=1,3,5,7
/proc/5361/stat : 5361 (bsolo) R 5359 5361 3716 0 -1 4202496 529 0 0 0 3 0 0 0 25 0 1 0 829696148 11730944 463 33554432000 134512640 137138936 4293840640 18446744073709551615 134709299 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/5361/statm: 2864 463 219 642 0 2220 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 11456

[startup+0.100575 s]
/proc/loadavg: 2.05 2.07 2.02 2/561 5361
/proc/meminfo: memFree=29817288/32950928 swapFree=41528364/67111528
[pid=5361] ppid=5359 vsize=11700 CPUtime=0.09 cores=1,3,5,7
/proc/5361/stat : 5361 (bsolo) R 5359 5361 3716 0 -1 4202496 639 0 0 0 9 0 0 0 25 0 1 0 829696148 11980800 527 33554432000 134512640 137138936 4293840640 18446744073709551615 135745275 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/5361/statm: 2925 527 219 642 0 2281 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11700

[startup+0.300552 s]
/proc/loadavg: 2.05 2.07 2.02 2/561 5361
/proc/meminfo: memFree=29817288/32950928 swapFree=41528364/67111528
[pid=5361] ppid=5359 vsize=15024 CPUtime=0.29 cores=1,3,5,7
/proc/5361/stat : 5361 (bsolo) R 5359 5361 3716 0 -1 4202496 16435 0 0 0 27 2 0 0 25 0 1 0 829696148 15384576 832 33554432000 134512640 137138936 4293840640 18446744073709551615 136528575 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/5361/statm: 3756 842 282 642 0 3112 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15024

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

[startup+0.500507 s]
/proc/loadavg: 2.05 2.07 2.02 2/561 5361
/proc/meminfo: memFree=29817288/32950928 swapFree=41528364/67111528
[pid=5361] ppid=5359 vsize=14012 CPUtime=0.49 cores=1,3,5,7
/proc/5361/stat : 5361 (bsolo) R 5359 5361 3716 0 -1 4202496 36750 0 0 0 45 4 0 0 25 0 1 0 829696148 14348288 778 33554432000 134512640 137138936 4293840640 18446744073709551615 135376730 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/5361/statm: 3503 779 282 642 0 2859 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 14012

[startup+0.60049 s]
/proc/loadavg: 2.05 2.07 2.02 2/561 5361
/proc/meminfo: memFree=29817288/32950928 swapFree=41528364/67111528
[pid=5361] ppid=5359 vsize=12188 CPUtime=0.59 cores=1,3,5,7
/proc/5361/stat : 5361 (bsolo) R 5359 5361 3716 0 -1 4202496 47134 0 0 0 54 5 0 0 25 0 1 0 829696148 12480512 677 33554432000 134512640 137138936 4293840640 18446744073709551615 135260715 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/5361/statm: 3047 689 282 642 0 2403 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 12188

Child status: 0
Real time (s): 0.6256
CPU time (s): 0.625904
CPU user time (s): 0.563914
CPU system time (s): 0.06199
CPU usage (%): 100.049
Max. virtual memory (cumulated for all children) (KiB): 15024

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.563914
system time used= 0.06199
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 48676
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= 3
involuntary context switches= 2

runsolver used 0.008998 second user time and 0.012998 second system time

The end

Launcher Data

Begin job on node126 at 2011-06-04 11:49:34
IDJOB=3462944
IDBENCH=25042
IDSOLVER=1955
FILE ID=node126/3462944-1307180974
RUNJOBID= node126-1307175452-4913
PBS_JOBID= 13508841
Free space on /tmp= 73784 MiB

SOLVER NAME= bsolo 3.2
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-LIN/submittedPB07/aksoy/area_opers/normalized-fir02_area_opers.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3462944-1307180974/watcher-3462944-1307180974 -o /tmp/evaluation-result-3462944-1307180974/solver-3462944-1307180974 -C 1800 -W 1900 -M 15500  bsolo -l2 -t1800 HOME/instance-3462944-1307180974.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 918383404e7b51b9b3205c84ccd5b510
RANDOM SEED=672093381

node126.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.56
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.80
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      29817568 kB
Buffers:        312792 kB
Cached:         497968 kB
SwapCached:      15388 kB
Active:        2371664 kB
Inactive:       441088 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      29817568 kB
SwapTotal:    67111528 kB
SwapFree:     41528364 kB
Dirty:            3940 kB
Writeback:           0 kB
AnonPages:     1999512 kB
Mapped:          24444 kB
Slab:           147628 kB
PageTables:     100108 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 176653028 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73780 MiB
End job on node126 at 2011-06-04 11:49:35