Trace number 453366

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 3.0.17OPT2 0.25696 0.258599

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_50_25_3.opb
MD5SUMda214a3f088b29c437fc8e7d0ee2cf8a
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark0.207968
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
Optimality of the best value was proved YES
Number of variables50
Total number of constraints50
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 constraints50
Minimum length of a constraint26
Maximum length of a constraint38
Number of terms in the objective function 50
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 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 50
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)1476
Sum of products size (including duplicates)2952
Number of different products1476
Sum of products size2952

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 3.0.17 - 27/04/2007 : 1600 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 Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/453366-1178133477/instance-453366-1178133477.opb
0.00/0.00	c File size is 18375 bytes.
0.00/0.01	c Highest Coefficient sum: 50
0.00/0.01	c Parsing was ok!!
0.00/0.01	c Total parsing time: 0.009 s
0.00/0.01	c Var: 1526 Constr: 3002 1526/0/1476 Lit: 10382 Watch. Lit: 7480
0.00/0.01	c Obj. Vars: 50 (3.27654 % of total variables)
0.00/0.08	c Pre-processing Time: 0.085 s
0.00/0.08	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.08	c        0   1526     3002    10382    3     7480    9364      0      0 0.09
0.00/0.08	c Switching off LPR mode.
0.00/0.09	o 49	0.086
0.00/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.09	c        0   1526     3003    10432    3     7483    9398      1      0 0.09
0.00/0.09	o 48	0.087
0.00/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.09	c        0   1526     3004    10482    3     7487    9448      2      0 0.09
0.00/0.09	o 47	0.088
0.00/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.09	c        0   1526     3005    10532    3     7492    9514      3      0 0.09
0.00/0.09	o 46	0.09
0.00/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.09	c        0   1526     3006    10582    3     7498    9598      4      0 0.09
0.00/0.09	o 45	0.091
0.00/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.09	c        0   1526     3007    10632    3     7505    9698      5      0 0.09
0.00/0.09	o 44	0.092
0.00/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.09	c        0   1526     3008    10682    3     7513    9814      6      0 0.09
0.00/0.09	o 43	0.093
0.00/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.09	c        0   1526     3009    10732    3     7522    9948      7      0 0.09
0.00/0.09	o 42	0.094
0.00/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.10	c        0   1526     3010    10782    3     7532   10098      8      0 0.10
0.00/0.10	o 41	0.096
0.00/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.10	c        0   1526     3011    10832    3     7543   10264      9      0 0.10
0.00/0.10	o 40	0.097
0.00/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.10	c        0   1526     3012    10882    3     7555   10448     10      0 0.10
0.00/0.10	o 39	0.098
0.00/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.10	c        0   1526     3013    10932    3     7568   10648     11      0 0.10
0.00/0.10	o 38	0.099
0.00/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.10	c        0   1526     3014    10982    3     7582   10864     12      0 0.10
0.00/0.10	o 26	0.101
0.10/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.10/0.10	c        1   1526     3016    11070    3     7610   11064     14      9 0.10
0.10/0.10	o 4	0.103
0.10/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.10/0.10	c        1   1526     3017    11120    3     7658   11431     15      9 0.10
0.10/0.10	o 3	0.104
0.19/0.21	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.21	c        2   1526     3019    11250    3     7709   11448     17     19 0.10
0.19/0.21	c      103   1526     3120    18801    6     7911   12593    118    792 0.13
0.19/0.21	o 2	0.208
0.19/0.25	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.25	c      321   1526     3339    42823   12     8397   11464    337   1535 0.21
0.19/0.25	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
0.19/0.25	v -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50
0.19/0.25	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.25	c   17      380     94     1779     3398    47919    396   1507 0.25
0.19/0.25	c Objective: 2
0.19/0.25	s OPTIMUM FOUND
0.19/0.25	c Total time: 0.252 s

Verifier Data (download as text)

OK	2

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node21/watcher-453366-1178133477 -o ROOT/results/node21/solver-453366-1178133477 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/453366-1178133477/instance-453366-1178133477.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: 1.07 1.00 0.99 3/77 29484
/proc/meminfo: memFree=1810528/2055920 swapFree=4156296/4192956
[pid=29484] ppid=29482 vsize=3944 CPUtime=0
/proc/29484/stat : 29484 (bsolo3.0.17) R 29482 29484 28069 0 -1 4194304 376 0 0 0 0 0 0 0 18 0 1 0 261265025 4038656 346 18446744073709551615 134512640 135840783 4294956608 18446744073709551615 8873595 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29484/statm: 986 347 289 324 0 51 0

[startup+0.106571 s]
/proc/loadavg: 1.07 1.00 0.99 3/77 29484
/proc/meminfo: memFree=1810528/2055920 swapFree=4156296/4192956
[pid=29484] ppid=29482 vsize=4888 CPUtime=0.1
/proc/29484/stat : 29484 (bsolo3.0.17) R 29482 29484 28069 0 -1 4194304 627 0 0 0 10 0 0 0 18 0 1 0 261265025 5005312 592 18446744073709551615 134512640 135840783 4294956608 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29484/statm: 1222 592 310 324 0 292 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 4888

[startup+0.201581 s]
/proc/loadavg: 1.07 1.00 0.99 3/77 29484
/proc/meminfo: memFree=1810528/2055920 swapFree=4156296/4192956
[pid=29484] ppid=29482 vsize=5148 CPUtime=0.19
/proc/29484/stat : 29484 (bsolo3.0.17) R 29482 29484 28069 0 -1 4194304 701 0 0 0 19 0 0 0 18 0 1 0 261265025 5271552 666 18446744073709551615 134512640 135840783 4294956608 18446744073709551615 8873595 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29484/statm: 1287 666 310 324 0 357 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 5148

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

Child status: 0
Real time (s): 0.258599
CPU time (s): 0.25696
CPU user time (s): 0.251961
CPU system time (s): 0.004999
CPU usage (%): 99.3662
Max. virtual memory (cumulated for all children) (KiB): 5148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.251961
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 726
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= 5

runsolver used 0.001999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node21 on Wed May  2 19:17:57 UTC 2007

IDJOB= 453366
IDBENCH= 48125
IDSOLVER= 199
FILE ID= node21/453366-1178133477

PBS_JOBID= 4751039

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mds/normalized-mds_50_25_3.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/453366-1178133477/instance-453366-1178133477.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-453366-1178133477 -o ROOT/results/node21/solver-453366-1178133477 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/453366-1178133477/instance-453366-1178133477.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  da214a3f088b29c437fc8e7d0ee2cf8a

RANDOM SEED= 228469139

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node21.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		: 3000.232
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		: 3000.232
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:       1810936 kB
Buffers:         70176 kB
Cached:          81564 kB
SwapCached:      15540 kB
Active:          99628 kB
Inactive:        81068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1810936 kB
SwapTotal:     4192956 kB
SwapFree:      4156296 kB
Dirty:            6768 kB
Writeback:           0 kB
Mapped:          34884 kB
Slab:            49740 kB
Committed_AS:  4803568 kB
PageTables:       1800 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= 66558 MiB

End job on node21 on Wed May  2 19:17:58 UTC 2007