Trace number 1879109

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 NameAnswerobjCPU timeWall clock time
bsolo 3.1 clOPT20 0.359945 0.366602

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/
sorensson/garden/normalized-g9x9.opb
MD5SUM4b56e6775cc4a081c8696ef0fa81b784
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark20
Best CPU time to get the best result obtained on this benchmark0.359945
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 20
Optimality of the best value was proved YES
Number of variables81
Total number of constraints81
Number of constraints which are clauses81
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 constraint3
Maximum length of a constraint5
Number of terms in the objective function 81
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 81
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 81
Number of bits of the biggest sum of numbers7
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 3.1 - 13/04/2009 : 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: Clause Learning
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 HOME/instance-1879109-1245162117.opb
0.00/0.00	c File size is 3874 bytes.
0.00/0.00	c Highest Coefficient sum: 81
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: 81 Constr: 81 81/0/0 Lit: 369 Watch. Lit: 162
0.00/0.00	c Obj. Vars: 81 (100 % of total variables)
0.00/0.00	c Pre-processing Time: 0.001 s
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0     81       81      369    4      162      26      0      0 0.00
0.00/0.01	c Initial Lower Bound: 19
0.00/0.01	c Initial Path Cost: 0
0.00/0.01	o 27
0.00/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.04	c        0     81       82      450    5      218    1026      1      0 0.01
0.00/0.04	o 24
0.06/0.07	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.07	c        0     81       83      531    6      277    2026      2      0 0.03
0.06/0.07	o 23
0.08/0.13	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.08/0.13	c        2     81       88      708    8      345    2026      7     28 0.07
0.08/0.13	o 22
0.18/0.27	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.18/0.27	c       20     81      125     1665   13      478    2026     44    155 0.13
0.18/0.27	o 21
0.18/0.29	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.18/0.29	c       87     81      260     5041   19      808    2026    179    328 0.27
0.18/0.29	o 20
0.28/0.36	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.28/0.36	c       88     81      263     5162   19      875    2026    182    303 0.29
0.28/0.36	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 -x32 -x33 -x34 -x35 x36 -x37 x38 -x39 -x40 -x41 -x42 x43 -x44 -x45 -x46 -x47 -x48 -x49 x50 -x51 -x52 -x53 -x54 x55 -x56 x57 -x58 -x59 -x60 -x61 x62 x63 -x64 -x65 -x66 -x67 -x68 x69 -x70 -x71 -x72 -x73 x74 -x75 x76 -x77 -x78 -x79 x80 -x81 
0.28/0.36	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.28/0.36	c    6      106     13      324      300     5282    219    296 0.36
0.28/0.36	c Objective: 20
0.28/0.36	s OPTIMUM FOUND
0.28/0.36	c Total time: 0.357 s

Verifier Data 

OK	20

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1879109-1245162117/watcher-1879109-1245162117 -o /tmp/evaluation-result-1879109-1245162117/solver-1879109-1245162117 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1879109-1245162117.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: 2.28 2.16 2.07 4/73 9904
/proc/meminfo: memFree=1839360/2055920 swapFree=4180892/4192956
[pid=9904] ppid=9902 vsize=26912 CPUtime=0
/proc/9904/stat : 9904 (bsolo) R 9902 9904 9510 0 -1 4194304 374 0 0 0 0 0 0 0 21 0 1 0 183809735 27557888 357 1992294400 134512640 137136520 4294956256 18446744073709551615 135443850 0 0 4096 16384 0 0 0 17 0 0 0
/proc/9904/statm: 6728 357 280 640 0 6084 0

[startup+0.074272 s]
/proc/loadavg: 2.28 2.16 2.07 4/73 9904
/proc/meminfo: memFree=1839360/2055920 swapFree=4180892/4192956
[pid=9904] ppid=9902 vsize=27036 CPUtime=0.06
/proc/9904/stat : 9904 (bsolo) R 9902 9904 9510 0 -1 4194304 1553 0 0 0 6 0 0 0 21 0 1 0 183809735 27684864 385 1992294400 134512640 137136520 4294956256 18446744073709551615 135249124 0 0 4096 16384 0 0 0 17 1 0 0
/proc/9904/statm: 6759 385 292 640 0 6115 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 27036

[startup+0.101274 s]
/proc/loadavg: 2.28 2.16 2.07 4/73 9904
/proc/meminfo: memFree=1839360/2055920 swapFree=4180892/4192956
[pid=9904] ppid=9902 vsize=27036 CPUtime=0.08
/proc/9904/stat : 9904 (bsolo) R 9902 9904 9510 0 -1 4194304 1603 0 0 0 8 0 0 0 21 0 1 0 183809735 27684864 433 1992294400 134512640 137136520 4294956256 18446744073709551615 135469452 0 0 4096 16384 0 0 0 17 1 0 0
/proc/9904/statm: 6759 433 292 640 0 6115 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 27036

[startup+0.301297 s]
/proc/loadavg: 2.28 2.16 2.07 4/73 9904
/proc/meminfo: memFree=1839360/2055920 swapFree=4180892/4192956
[pid=9904] ppid=9902 vsize=19224 CPUtime=0.28
/proc/9904/stat : 9904 (bsolo) R 9902 9904 9510 0 -1 4194304 1637 0 0 0 28 0 0 0 22 0 1 0 183809735 19685376 467 1992294400 134512640 137136520 4294956256 18446744073709551615 135078613 0 0 4096 16384 0 0 0 17 1 0 0
/proc/9904/statm: 4806 467 292 640 0 4162 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 19224

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

Child status: 0
Real time (s): 0.366602
CPU time (s): 0.359945
CPU user time (s): 0.353946
CPU system time (s): 0.005999
CPU usage (%): 98.1841
Max. virtual memory (cumulated for all children) (KiB): 27036

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.353946
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1646
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= 39

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node87 at 2009-06-16 16:21:57
IDJOB=1879109
IDBENCH=2213
IDSOLVER=700
FILE ID=node87/1879109-1245162117
PBS_JOBID= 9363857
Free space on /tmp= 66540 MiB

SOLVER NAME= bsolo 3.1 cl
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/sorensson/garden/normalized-g9x9.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1879109-1245162117/watcher-1879109-1245162117 -o /tmp/evaluation-result-1879109-1245162117/solver-1879109-1245162117 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1879109-1245162117.opb

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

MD5SUM BENCH= 4b56e6775cc4a081c8696ef0fa81b784
RANDOM SEED=1747288772

node87.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.235
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		: 3000.235
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1840032 kB
Buffers:         36048 kB
Cached:          95476 kB
SwapCached:       6176 kB
Active:          72956 kB
Inactive:        84172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1840032 kB
SwapTotal:     4192956 kB
SwapFree:      4180892 kB
Dirty:            4136 kB
Writeback:           0 kB
Mapped:          33084 kB
Slab:            43680 kB
Committed_AS:   591772 kB
PageTables:       2128 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-1879109-1245162117.opb

Free space on /tmp at the end= 66536 MiB
End job on node87 at 2009-06-16 16:21:58