Trace number 452821

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 0.144977 0.146449

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=5-P0=31-P1=23-P2=2-P3=17-P4=17-B.opb
MD5SUMab5c167d631c36380726b7ea7a7cf75a
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 benchmark0.034994
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 variables60
Total number of constraints9
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 constraints9
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)100
Sum of products size (including duplicates)200
Number of different products100
Sum of products size200

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/452821-1177981273/instance-452821-1177981273.opb
0.00/0.00	c File size is 2183 bytes.
0.00/0.00	c Highest Coefficient sum: 1984
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: 160 Constr: 213 100/0/113 Lit: 895 Watch. Lit: 573
0.00/0.00	c Obj. Vars: 5 (3.125 % of total variables)
0.00/0.00	c Pre-processing Time: 0.003 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    160      213      895    4      765    1223      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.00/0.02	c      100    160      313     3146   10      953    1346    100  14285 0.01
0.00/0.02	c      250    160      463     8097   17     1233    1481    250  17857 0.01
0.00/0.02	o 23	0.018
0.00/0.02	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.02	c      345    160      559    10744   19     1428    1233    346  19166 0.02
0.00/0.02	o 22	0.021
0.00/0.02	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.02	c      398    160      613    12562   20     1551    1233    400  18952 0.02
0.00/0.02	o 13	0.022
0.00/0.02	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.02	c      407    160      623    12769   20     1560    1233    410  18500 0.02
0.00/0.02	o 3	0.022
0.09/0.14	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.14	c      411    160      628    12876   20     1579    1233    415  17869 0.02
0.09/0.14	c      511    154      728    15508   21     1747    1357    515  18925 0.03
0.09/0.14	c      763    142      980    22085   22     2278    1493    767  18166 0.04
0.09/0.14	c     1239    125     1456    33714   23     3234    1643   1243  17208 0.07
0.09/0.14	c     2052    125     1326    28733   21     2941    1808   1113  15088 0.14
0.09/0.14	o 2	0.14
0.09/0.14	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.14	c     2101    125     1376    29999   21     3048    1223   1163  15007 0.14
0.09/0.14	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 -x41
0.09/0.14	v -x42 -x43 -x44 -x45 -x31 x32 -x33 -x34 -x35 x46 -x47 x48 -x49 -x50 -x36 x37 -x38 -x39 x40 -x51 -x52 -x53 -x54 -x55 x56 -x57 -x58
0.09/0.14	v x59 -x60
0.09/0.14	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.14	c   11     2101    126     3057     1376    29999   1163  15007 0.14
0.09/0.14	c Objective: 2
0.09/0.14	s OPTIMUM FOUND
0.09/0.14	c Total time: 0.14 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/node35/watcher-452821-1177981273 -o ROOT/results/node35/solver-452821-1177981273 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452821-1177981273/instance-452821-1177981273.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: 0.99 0.97 0.84 3/83 31354
/proc/meminfo: memFree=1834664/2055920 swapFree=4151252/4192956
[pid=31354] ppid=31352 vsize=3928 CPUtime=0
/proc/31354/stat : 31354 (bsolo3.0.17) R 31352 31354 30569 0 -1 4194304 380 0 0 0 0 0 0 0 18 0 1 0 246042765 4022272 350 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 1898107 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31354/statm: 981 354 294 324 0 51 0

[startup+0.011537 s]
/proc/loadavg: 0.99 0.97 0.84 3/83 31354
/proc/meminfo: memFree=1834664/2055920 swapFree=4151252/4192956
[pid=31354] ppid=31352 vsize=4056 CPUtime=0
/proc/31354/stat : 31354 (bsolo3.0.17) R 31352 31354 30569 0 -1 4194304 420 0 0 0 0 0 0 0 18 0 1 0 246042765 4153344 389 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31354/statm: 1014 390 310 324 0 84 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4056

[startup+0.101548 s]
/proc/loadavg: 0.99 0.97 0.84 3/83 31354
/proc/meminfo: memFree=1834664/2055920 swapFree=4151252/4192956
[pid=31354] ppid=31352 vsize=4704 CPUtime=0.09
/proc/31354/stat : 31354 (bsolo3.0.17) R 31352 31354 30569 0 -1 4194304 587 0 0 0 9 0 0 0 18 0 1 0 246042765 4816896 556 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 1898107 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31354/statm: 1176 556 311 324 0 246 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4704

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

Child status: 0
Real time (s): 0.146449
CPU time (s): 0.144977
CPU user time (s): 0.138978
CPU system time (s): 0.005999
CPU usage (%): 98.9948
Max. virtual memory (cumulated for all children) (KiB): 4704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.138978
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= 617
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= 0

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node35 on Tue May  1 01:01:13 UTC 2007

IDJOB= 452821
IDBENCH= 47888
IDSOLVER= 199
FILE ID= node35/452821-1177981273

PBS_JOBID= 4728117

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=5-P0=31-P1=23-P2=2-P3=17-P4=17-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452821-1177981273/instance-452821-1177981273.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node35/watcher-452821-1177981273 -o ROOT/results/node35/solver-452821-1177981273 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452821-1177981273/instance-452821-1177981273.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  ab5c167d631c36380726b7ea7a7cf75a

RANDOM SEED= 895760846

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node35.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:       1835008 kB
Buffers:         34684 kB
Cached:          96628 kB
SwapCached:       8972 kB
Active:          95200 kB
Inactive:        60976 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1835008 kB
SwapTotal:     4192956 kB
SwapFree:      4151252 kB
Dirty:            6756 kB
Writeback:           0 kB
Mapped:          32260 kB
Slab:            49616 kB
Committed_AS:  2735780 kB
PageTables:       2236 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 node35 on Tue May  1 01:01:14 UTC 2007