Trace number 2657001

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 3.2 CardOPT34 0.603907 0.604141

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/
MIPLIB/miplib/normalized-mps-v2-20-10-bm23.opb
MD5SUM5c5bb330d1cbd0e2ab066594a5d2a4de
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark34
Best CPU time to get the best result obtained on this benchmark0.089986
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 34
Optimality of the best value was proved YES
Number of variables27
Total number of constraints20
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 constraints20
Minimum length of a constraint18
Maximum length of a constraint26
Number of terms in the objective function 27
Biggest coefficient in the objective function 9
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 124
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 65
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 182
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 

0.00/0.01	c bsolo beta version 3.2 - 23/05/2010 : 1630 GMT
0.00/0.01	c Developed by Vasco Manquinho and José Santos IST/UTL - INESC-ID
0.00/0.01	c type "bsolo -h" for help
0.00/0.01	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.01	c Time Limit set to 1800
0.00/0.01	c Learning Strategy: Cardinality Constraint Learning
0.00/0.01	c Instance file HOME/instance-2657001-1276355073.opb
0.00/0.01	c File size is 3739 bytes.
0.00/0.01	c Highest Coefficient sum: 182
0.00/0.01	c Parsing was ok!!
0.00/0.01	c Total parsing time: 0 s
0.00/0.01	c Var: 27 Constr: 20 0/0/20 Lit: 478 Watch. Lit: 169
0.00/0.01	c Obj. Vars: 27 (100 % of total variables)
0.00/0.01	c Pre-processing Time: 0 s
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0     27       20      478   23      175     956      0 -2147483648 0.00
0.00/0.01	c Initial Lower Bound: 21
0.00/0.01	c Initial Path Cost: 0
0.02/0.06	c      100     27      151     2344   15      487    1052    131  11111 0.01
0.02/0.06	c      251     27      342     4898   14      874    1158    322  11409 0.02
0.02/0.06	c      476     27      614     8309   13     1427    1274    594  11333 0.04
0.02/0.06	o 57
0.02/0.07	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.02/0.07	c      708     27      905    12137   13     2036    1010    885  10567 0.07
0.02/0.07	o 41
0.20/0.29	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.20/0.29	c      711     27      909    12201   13     2056    1010    889   9875 0.07
0.20/0.29	c      811     27      531     7044   13     1279    1112    511   6335 0.13
0.20/0.29	c     1062     27      938    12104   12     2082    1224    918   3765 0.28
0.20/0.29	o 37
0.39/0.41	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.39/0.41	c     1068     27      947    12228   12     2120    1010    927   3695 0.29
0.39/0.41	c     1170     27      610     7966   13     1422    1112    590   3314 0.35
0.39/0.41	o 35
0.39/0.43	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.39/0.43	c     1244     27      744     9560   12     1725    1010    724   3041 0.41
0.39/0.43	o 34
0.59/0.60	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.59/0.60	c     1277     27      795    10314   12     1838    1010    775   2983 0.43
0.59/0.60	c     1377     26     1027    12613   12     2305    1112   1007   2715 0.51
0.59/0.60	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 
0.59/0.60	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.59/0.60	c   12     1505    106     1743      718     8176    698   2500 0.60
0.59/0.60	c Objective: 34
0.59/0.60	s OPTIMUM FOUND
0.59/0.60	c Total time: 0.602 s

Verifier Data 

OK	34

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2657001-1276355073/watcher-2657001-1276355073 -o /tmp/evaluation-result-2657001-1276355073/solver-2657001-1276355073 -C 1800 -W 2000 -M 1800 bsolo_pb10 -t1800 -l2 HOME/instance-2657001-1276355073.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 1.05 1.05 3/106 12518
/proc/meminfo: memFree=1841024/2059040 swapFree=4158992/4192956
[pid=12518] ppid=12516 vsize=18588 CPUtime=0.01
/proc/12518/stat : 12518 (bsolo_pb10) R 12516 12518 11757 0 -1 4202496 451 0 0 0 1 0 0 0 22 0 1 0 11110934 19034112 345 1992294400 134512640 137138936 4291227728 18446744073709551615 134618473 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/12518/statm: 4647 345 286 642 0 4003 0

[startup+0.0250829 s]
/proc/loadavg: 0.92 1.05 1.05 3/106 12518
/proc/meminfo: memFree=1841024/2059040 swapFree=4158992/4192956
[pid=12518] ppid=12516 vsize=18588 CPUtime=0.02
/proc/12518/stat : 12518 (bsolo_pb10) R 12516 12518 11757 0 -1 4202496 462 0 0 0 2 0 0 0 22 0 1 0 11110934 19034112 356 1992294400 134512640 137138936 4291227728 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/12518/statm: 4647 356 286 642 0 4003 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 18588

[startup+0.102092 s]
/proc/loadavg: 0.92 1.05 1.05 3/106 12518
/proc/meminfo: memFree=1841024/2059040 swapFree=4158992/4192956
[pid=12518] ppid=12516 vsize=19336 CPUtime=0.09
/proc/12518/stat : 12518 (bsolo_pb10) R 12516 12518 11757 0 -1 4202496 1278 0 0 0 9 0 0 0 22 0 1 0 11110934 19800064 427 1992294400 134512640 137138936 4291227728 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/12518/statm: 4834 427 287 642 0 4190 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 19336

[startup+0.301114 s]
/proc/loadavg: 0.92 1.05 1.05 3/106 12518
/proc/meminfo: memFree=1841024/2059040 swapFree=4158992/4192956
[pid=12518] ppid=12516 vsize=18880 CPUtime=0.29
/proc/12518/stat : 12518 (bsolo_pb10) R 12516 12518 11757 0 -1 4202496 6465 0 0 0 28 1 0 0 22 0 1 0 11110934 19333120 414 1992294400 134512640 137138936 4291227728 18446744073709551615 134542624 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/12518/statm: 4804 419 287 642 0 4160 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 18880

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

[startup+0.501137 s]
/proc/loadavg: 0.92 1.05 1.05 3/106 12518
/proc/meminfo: memFree=1841024/2059040 swapFree=4158992/4192956
[pid=12518] ppid=12516 vsize=19348 CPUtime=0.49
/proc/12518/stat : 12518 (bsolo_pb10) R 12516 12518 11757 0 -1 4202496 12582 0 0 0 45 4 0 0 22 0 1 0 11110934 19812352 423 1992294400 134512640 137138936 4291227728 18446744073709551615 136506715 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/12518/statm: 4837 425 287 642 0 4193 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 19348

[startup+0.60015 s]
/proc/loadavg: 0.92 1.05 1.05 3/106 12518
/proc/meminfo: memFree=1841024/2059040 swapFree=4158992/4192956
[pid=12518] ppid=12516 vsize=18892 CPUtime=0.59
/proc/12518/stat : 12518 (bsolo_pb10) R 12516 12518 11757 0 -1 4202496 15714 0 0 0 53 6 0 0 23 0 1 0 11110934 19345408 416 1992294400 134512640 137138936 4291227728 18446744073709551615 136700814 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/12518/statm: 4723 416 287 642 0 4079 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 18892

Child status: 0
Real time (s): 0.604141
CPU time (s): 0.603907
CPU user time (s): 0.541917
CPU system time (s): 0.06199
CPU usage (%): 99.9613
Max. virtual memory (cumulated for all children) (KiB): 19424

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.541917
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= 15827
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= 1
involuntary context switches= 2

runsolver used 0.005999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node006 at 2010-06-12 17:04:33
IDJOB=2657001
IDBENCH=1860
IDSOLVER=1162
FILE ID=node006/2657001-1276355073
PBS_JOBID= 11173195
Free space on /tmp= 62472 MiB

SOLVER NAME= bsolo 3.2 Card
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-bm23.opb
COMMAND LINE= bsolo_pb10 -tTIMEOUT -l2 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2657001-1276355073/watcher-2657001-1276355073 -o /tmp/evaluation-result-2657001-1276355073/solver-2657001-1276355073 -C 1800 -W 2000 -M 1800  bsolo_pb10 -t1800 -l2 HOME/instance-2657001-1276355073.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 5c5bb330d1cbd0e2ab066594a5d2a4de
RANDOM SEED=266769374

node006.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	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.204
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.40
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		: 3000.204
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1841552 kB
Buffers:         20552 kB
Cached:         104124 kB
SwapCached:       1976 kB
Active:          93820 kB
Inactive:        58736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1841552 kB
SwapTotal:     4192956 kB
SwapFree:      4158992 kB
Dirty:            4344 kB
Writeback:           8 kB
AnonPages:       25968 kB
Mapped:          14012 kB
Slab:            43208 kB
PageTables:       4000 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181708 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62468 MiB
End job on node006 at 2010-06-12 17:04:33