Trace number 363555

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 3.0.16OPT34 1.3058 1.30735

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 benchmark0.085986
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 (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/363555-1177029441/instance-363555-1177029441.opb
0.00/0.00	c File size is 3739 bytes.
0.00/0.00	c Highest Coefficient sum: 182
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: 27 Constr: 20 0/0/20 Lit: 478 Watch. Lit: 169
0.00/0.00	c Obj. Vars: 27 (100 % of total variables)
0.00/0.00	c Pre-processing Time: 0.002 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0     27       20      478   23      175     956      0      0 0.00
0.00/0.00	c Initial Lower Bound: 21
0.00/0.00	c Initial Path Cost: 0
0.00/0.05	c      101     27      121     2040   16      428    1052    101  14428 0.01
0.00/0.05	c      252     27      272     4184   15      738    1158    252  21000 0.01
0.00/0.05	c      478     27      498     7205   14     1181    1274    478  21727 0.02
0.00/0.05	c      816     27      836    11700   13     1877    1402    816  20400 0.04
0.00/0.05	o 58	0.051
0.05/0.07	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.05/0.07	c      981     27     1002    14069   14     2210    1010    982  19235 0.05
0.05/0.07	o 43	0.067 * 
0.09/0.17	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.17	c     1005     27     1027    14491   14     2283    1010   1007  15000 0.07
0.09/0.17	c     1106     27      614     8786   14     1450    1112    594  10240 0.11
0.09/0.17	o 42	0.171 * 
0.49/0.56	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.49/0.56	c     1272     27      788    11452   14     1797    1010    768   7438 0.17
0.49/0.56	c     1373     27      912    12973   14     2046    1112    892   6415 0.21
0.49/0.56	c     1624     27      634     9055   14     1477    1224    614   5027 0.32
0.49/0.56	c     2099     27     1156    15611   13     2532    1347   1136   4115 0.51
0.49/0.56	o 37	0.561 * 
0.69/0.78	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.69/0.78	c     2203     27     1277    17078   13     2783    1010   1257   3926 0.56
0.69/0.78	c     2303     27      642     8238   12     1484    1112    622   3831 0.60
0.69/0.78	c     2554     27      951    11727   12     2103    1224    931   3627 0.70
0.69/0.78	o 35	0.776
1.00/1.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
1.00/1.01	c     2694     27     1137    14010   12     2500    1010   1117   3471 0.78
1.00/1.01	c     2794     27      657     7956   12     1516    1112    637   3390 0.82
1.00/1.01	c     3044     26      999    11294   11     2214    1224    979   3221 0.94
1.00/1.01	o 34	1.012 * 
1.29/1.30	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
1.29/1.30	c     3199     26     1175    13522   11     2578    1008   1155   3161 1.01
1.29/1.30	c     3301     26      656     7366   11     1521    1109    636   3122 1.06
1.29/1.30	c     3552     26      976    11054   11     2152    1220    956   3035 1.17
1.29/1.30	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
1.29/1.30	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
1.29/1.30	c   20     3840    109     4125      726     7319    706   2951 1.30
1.29/1.30	c Objective: 34
1.29/1.30	s OPTIMUM FOUND
1.29/1.30	c Total time: 1.301 s

Verifier Data (download as text)

OK	34

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node9/watcher-363555-1177029441 -o ROOT/results/node9/solver-363555-1177029441 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/363555-1177029441/instance-363555-1177029441.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: 1.16 1.09 1.05 3/77 21433
/proc/meminfo: memFree=1809256/2055920 swapFree=4152812/4192956
[pid=21433] ppid=21431 vsize=19552 CPUtime=0
/proc/21433/stat : 21433 (bsolo3.0.16) R 21431 21433 21128 0 -1 4194304 365 0 0 0 0 0 0 0 18 0 1 0 178981699 20021248 333 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 134538671 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21433/statm: 4888 334 281 324 0 3956 0

[startup+0.0575631 s]
/proc/loadavg: 1.16 1.09 1.05 3/77 21433
/proc/meminfo: memFree=1809256/2055920 swapFree=4152812/4192956
[pid=21433] ppid=21431 vsize=12828 CPUtime=0.05
/proc/21433/stat : 21433 (bsolo3.0.16) R 21431 21433 21128 0 -1 4194304 758 0 0 0 5 0 0 0 18 0 1 0 178981699 13135872 600 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21433/statm: 3105 600 392 324 0 2174 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 12828

[startup+0.101568 s]
/proc/loadavg: 1.16 1.09 1.05 3/77 21433
/proc/meminfo: memFree=1809256/2055920 swapFree=4152812/4192956
[pid=21433] ppid=21431 vsize=12796 CPUtime=0.09
/proc/21433/stat : 21433 (bsolo3.0.16) R 21431 21433 21128 0 -1 4194304 1782 0 0 0 8 1 0 0 18 0 1 0 178981699 13103104 644 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 9098875 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21433/statm: 3249 645 392 324 0 2318 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12796

[startup+0.30159 s]
/proc/loadavg: 1.16 1.09 1.05 3/77 21433
/proc/meminfo: memFree=1809256/2055920 swapFree=4152812/4192956
[pid=21433] ppid=21431 vsize=12960 CPUtime=0.29
/proc/21433/stat : 21433 (bsolo3.0.16) R 21431 21433 21128 0 -1 4194304 5182 0 0 0 27 2 0 0 19 0 1 0 178981699 13271040 659 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 135306705 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21433/statm: 3240 659 392 324 0 2309 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12960

[startup+0.701634 s]
/proc/loadavg: 1.16 1.09 1.05 3/77 21433
/proc/meminfo: memFree=1809256/2055920 swapFree=4152812/4192956
[pid=21433] ppid=21431 vsize=12636 CPUtime=0.69
/proc/21433/stat : 21433 (bsolo3.0.16) R 21431 21433 21128 0 -1 4194304 9392 0 0 0 63 6 0 0 23 0 1 0 178981699 12939264 656 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21433/statm: 3240 658 392 324 0 2309 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12636

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

[startup+1.10568 s]
/proc/loadavg: 1.15 1.09 1.05 2/78 21434
/proc/meminfo: memFree=1808096/2055920 swapFree=4152812/4192956
[pid=21433] ppid=21431 vsize=12636 CPUtime=1.09
/proc/21433/stat : 21433 (bsolo3.0.16) R 21431 21433 21128 0 -1 4194304 13811 0 0 0 100 9 0 0 25 0 1 0 178981699 12939264 656 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21433/statm: 3159 656 392 324 0 2228 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 12636

[startup+1.3017 s]
/proc/loadavg: 1.15 1.09 1.05 2/78 21434
/proc/meminfo: memFree=1808096/2055920 swapFree=4152812/4192956
[pid=21433] ppid=21431 vsize=12960 CPUtime=1.29
/proc/21433/stat : 21433 (bsolo3.0.16) R 21431 21433 21128 0 -1 4194304 15898 0 0 0 119 10 0 0 25 0 1 0 178981699 13271040 660 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 135316298 0 0 4096 16384 0 0 0 17 1 0 0
/proc/21433/statm: 3240 660 392 324 0 2309 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 12960

Child status: 0
Real time (s): 1.30735
CPU time (s): 1.3058
CPU user time (s): 1.19882
CPU system time (s): 0.106983
CPU usage (%): 99.8817
Max. virtual memory (cumulated for all children) (KiB): 12964

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.19882
system time used= 0.106983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15930
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= 28

runsolver used 0.008998 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node9 on Fri Apr 20 00:37:21 UTC 2007

IDJOB= 363555
IDBENCH= 1860
IDSOLVER= 163
FILE ID= node9/363555-1177029441

PBS_JOBID= 4630654

Free space on /tmp= 66424 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-bm23.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/363555-1177029441/instance-363555-1177029441.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-363555-1177029441 -o ROOT/results/node9/solver-363555-1177029441 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/363555-1177029441/instance-363555-1177029441.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  5c5bb330d1cbd0e2ab066594a5d2a4de

RANDOM SEED= 1273900

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node9.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		: 3000.221
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		: 3000.221
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:       1809664 kB
Buffers:         46480 kB
Cached:         136564 kB
SwapCached:       7900 kB
Active:         102004 kB
Inactive:       104400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1809664 kB
SwapTotal:     4192956 kB
SwapFree:      4152812 kB
Dirty:            4436 kB
Writeback:           0 kB
Mapped:          29612 kB
Slab:            25380 kB
Committed_AS:  6460840 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= 66424 MiB

End job on node9 on Fri Apr 20 00:37:23 UTC 2007