Trace number 452934

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 3.0.17OPT3 0.38794 0.392943

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=8-P0=223-P1=73-B.opb
MD5SUM922420a68683b7e293a59c451b6ae509
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.024995
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables24
Total number of constraints3
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 constraints3
Minimum length of a constraint8
Maximum length of a constraint72
Number of terms in the objective function 8
Biggest coefficient in the objective function 128
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 255
Number of bits of the sum of numbers in the objective function 8
Biggest number in a constraint 32768
Number of bits of the biggest number in a constraint 16
Biggest sum of numbers in a constraint 130456
Number of bits of the biggest sum of numbers17
Number of products (including duplicates)64
Sum of products size (including duplicates)128
Number of different products64
Sum of products size128

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/452934-1177998226/instance-452934-1177998226.opb
0.00/0.00	c File size is 1316 bytes.
0.00/0.00	c Highest Coefficient sum: 130456
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 88 Constr: 132 64/0/68 Lit: 544 Watch. Lit: 340
0.00/0.00	c Obj. Vars: 8 (9.09091 % of total variables)
0.00/0.00	c Pre-processing Time: 0.001 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0     88      132      544    4      468     725      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.29/0.37	c      101     88      233     5634   24      660     798    101  12625 0.01
0.29/0.37	c      251     88      383    13590   35      960     878    251  11952 0.02
0.29/0.37	c      477     88      609    26455   43     1410     966    477  11093 0.04
0.29/0.37	c      816     88      948    46885   49     2093    1063    816  10200 0.08
0.29/0.37	c     1324     88      856    44786   52     1907    1170    724   9880 0.13
0.29/0.37	c     2088     88      976    49423   50     2152    1288    844   8961 0.23
0.29/0.37	c     3235     88     1420    73223   51     3035    1417   1288   8696 0.37
0.29/0.37	o 23	0.374
0.29/0.38	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.38	c     3252     88     1438    74284   51     3086     741   1306   8695 0.37
0.29/0.38	o 9	0.383
0.29/0.39	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.39	c     3338     88      591    25824   43     1393     741    459   8715 0.38
0.29/0.39	o 3	0.385
0.29/0.39	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.39	c     3359     79      613    26617   43     1436     739    481   8724 0.39
0.29/0.39	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
0.29/0.39	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.29/0.39	c   10     3363     24     3653      617    26628    485   8735 0.39
0.29/0.39	c Objective: 3
0.29/0.39	s OPTIMUM FOUND
0.29/0.39	c Total time: 0.385 s

Verifier Data (download as text)

OK	3

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node17/watcher-452934-1177998226 -o ROOT/results/node17/solver-452934-1177998226 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452934-1177998226/instance-452934-1177998226.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: 0.92 0.98 0.99 2/77 11085
/proc/meminfo: memFree=1810160/2055920 swapFree=4140032/4192956
[pid=11085] ppid=11083 vsize=19552 CPUtime=0
/proc/11085/stat : 11085 (bsolo3.0.17) R 11083 11085 10305 0 -1 4194304 371 0 0 0 0 0 0 0 18 0 1 0 247740110 20021248 341 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 3294843 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11085/statm: 4888 342 288 324 0 3957 0

[startup+0.0281289 s]
/proc/loadavg: 0.92 0.98 0.99 2/77 11085
/proc/meminfo: memFree=1810160/2055920 swapFree=4140032/4192956
[pid=11085] ppid=11083 vsize=12000 CPUtime=0.02
/proc/11085/stat : 11085 (bsolo3.0.17) R 11083 11085 10305 0 -1 4194304 453 0 0 0 2 0 0 0 18 0 1 0 247740110 12288000 422 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 3294843 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11085/statm: 3000 422 309 324 0 2070 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 12000

[startup+0.101136 s]
/proc/loadavg: 0.92 0.98 0.99 2/77 11085
/proc/meminfo: memFree=1810160/2055920 swapFree=4140032/4192956
[pid=11085] ppid=11083 vsize=12652 CPUtime=0.09
/proc/11085/stat : 11085 (bsolo3.0.17) R 11083 11085 10305 0 -1 4194304 605 0 0 0 9 0 0 0 18 0 1 0 247740110 12955648 574 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 3294843 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11085/statm: 3163 575 309 324 0 2233 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12652

[startup+0.301157 s]
/proc/loadavg: 0.92 0.98 0.99 2/77 11085
/proc/meminfo: memFree=1810160/2055920 swapFree=4140032/4192956
[pid=11085] ppid=11083 vsize=12912 CPUtime=0.29
/proc/11085/stat : 11085 (bsolo3.0.17) R 11083 11085 10305 0 -1 4194304 686 0 0 0 29 0 0 0 19 0 1 0 247740110 13221888 655 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 3294843 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11085/statm: 3228 655 309 324 0 2298 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12912

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

Child status: 0
Real time (s): 0.392943
CPU time (s): 0.38794
CPU user time (s): 0.381941
CPU system time (s): 0.005999
CPU usage (%): 98.7268
Max. virtual memory (cumulated for all children) (KiB): 12912

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.381941
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= 694
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= 23

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node17 on Tue May  1 05:43:46 UTC 2007

IDJOB= 452934
IDBENCH= 48001
IDSOLVER= 199
FILE ID= node17/452934-1177998226

PBS_JOBID= 4728200

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=8-P0=223-P1=73-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452934-1177998226/instance-452934-1177998226.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-452934-1177998226 -o ROOT/results/node17/solver-452934-1177998226 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452934-1177998226/instance-452934-1177998226.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  922420a68683b7e293a59c451b6ae509

RANDOM SEED= 476788305

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node17.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		: 3000.240
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		: 3000.240
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:       1810568 kB
Buffers:         30512 kB
Cached:         132348 kB
SwapCached:      15232 kB
Active:         131256 kB
Inactive:        55164 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1810568 kB
SwapTotal:     4192956 kB
SwapFree:      4140032 kB
Dirty:            6600 kB
Writeback:           0 kB
Mapped:          30484 kB
Slab:            44424 kB
Committed_AS:  7400508 kB
PageTables:       1796 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 node17 on Tue May  1 05:43:46 UTC 2007