Trace number 452812

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 0.364943 0.367701

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/
factor-mod-size=5-P0=17-P1=13-P2=11-P3=19-P4=11-P5=23-B.opb
MD5SUM8f089c1c530fbf8e6ea9af6ce86dd685
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 benchmark0.041992
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 variables75
Total number of constraints11
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 constraints11
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)125
Sum of products size (including duplicates)250
Number of different products125
Sum of products size250

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/452812-1177980496/instance-452812-1177980496.opb
0.00/0.00	c File size is 2673 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: 200 Constr: 266 125/0/141 Lit: 1120 Watch. Lit: 716
0.00/0.00	c Obj. Vars: 5 (2.5 % 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    200      266     1120    4      957    1531      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.19/0.22	c      100    200      366     3822   10     1127    1685    100  14285 0.01
0.19/0.22	c      253    200      519     8071   15     1422    1854    253  19461 0.01
0.19/0.22	c      479    200      745    14382   19     1869    2040    479  21772 0.02
0.19/0.22	c      818    200     1084    22720   20     2554    2245    818  20450 0.04
0.19/0.22	c     1326    200     1592    36887   23     3565    2470   1326  18416 0.07
0.19/0.22	c     2092    199     2358    57651   24     5106    2718   2092  16343 0.13
0.19/0.22	o 5	0.217
0.29/0.30	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.30	c     2971    198     1805    41519   23     4018    1541   1539  13691 0.22
0.29/0.30	c     3071    184     1043    20383   19     2489    1696    777  13469 0.23
0.29/0.30	c     3322    184     1294    26767   20     3013    1866   1028  13449 0.25
0.29/0.30	c     3797    183     1769    37768   21     3942    2053   1503  12827 0.30
0.29/0.30	o 3	0.301
0.29/0.36	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.36	c     3854    181     1827    38891   21     4072    1537   1561  12803 0.30
0.29/0.36	c     3955    166     1144    20828   18     2698    1691    878  12840 0.31
0.29/0.36	c     4205    166     1394    26617   19     3197    1861   1128  12938 0.33
0.29/0.36	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
0.29/0.36	v x33 x34 -x35 x51 -x52 -x53 -x54 -x55 x36 -x37 -x38 -x39 -x40 -x56 x57 -x58 -x59 -x60 x41 x42 -x43 -x44 -x45 -x61 -x62 -x63 -x64
0.29/0.36	v -x65 x46 -x47 -x48 -x49 -x50 x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75
0.29/0.36	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.29/0.36	c   13     4600    255     6013     1789    34723   1523  12742 0.36
0.29/0.36	c Objective: 3
0.29/0.36	s OPTIMUM FOUND
0.29/0.36	c Total time: 0.361 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/node24/watcher-452812-1177980496 -o ROOT/results/node24/solver-452812-1177980496 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452812-1177980496/instance-452812-1177980496.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: 0.91 0.95 0.81 3/77 24103
/proc/meminfo: memFree=1849424/2055920 swapFree=4143580/4192956
[pid=24103] ppid=24101 vsize=11740 CPUtime=0
/proc/24103/stat : 24103 (bsolo3.0.17) R 24101 24103 23933 0 -1 4194304 376 0 0 0 0 0 0 0 18 0 1 0 245967605 12021760 346 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 3040891 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24103/statm: 982 346 290 324 0 51 0

[startup+0.0507151 s]
/proc/loadavg: 0.91 0.95 0.81 3/77 24103
/proc/meminfo: memFree=1849424/2055920 swapFree=4143580/4192956
[pid=24103] ppid=24101 vsize=4444 CPUtime=0.04
/proc/24103/stat : 24103 (bsolo3.0.17) R 24101 24103 23933 0 -1 4194304 514 0 0 0 4 0 0 0 18 0 1 0 245967605 4550656 483 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134551189 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24103/statm: 1111 483 310 324 0 181 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4444

[startup+0.101721 s]
/proc/loadavg: 0.91 0.95 0.81 3/77 24103
/proc/meminfo: memFree=1849424/2055920 swapFree=4143580/4192956
[pid=24103] ppid=24101 vsize=4832 CPUtime=0.09
/proc/24103/stat : 24103 (bsolo3.0.17) R 24101 24103 23933 0 -1 4194304 608 0 0 0 9 0 0 0 18 0 1 0 245967605 4947968 577 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134551093 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24103/statm: 1208 577 310 324 0 278 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4832

[startup+0.301743 s]
/proc/loadavg: 0.91 0.95 0.81 3/77 24103
/proc/meminfo: memFree=1849424/2055920 swapFree=4143580/4192956
[pid=24103] ppid=24101 vsize=5352 CPUtime=0.29
/proc/24103/stat : 24103 (bsolo3.0.17) R 24101 24103 23933 0 -1 4194304 734 0 0 0 29 0 0 0 19 0 1 0 245967605 5480448 703 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134572583 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24103/statm: 1338 703 311 324 0 408 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5352

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

Child status: 0
Real time (s): 0.367701
CPU time (s): 0.364943
CPU user time (s): 0.356945
CPU system time (s): 0.007998
CPU usage (%): 99.2499
Max. virtual memory (cumulated for all children) (KiB): 5352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.356945
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 738
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= 1

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node24 on Tue May  1 00:48:16 UTC 2007

IDJOB= 452812
IDBENCH= 47879
IDSOLVER= 199
FILE ID= node24/452812-1177980496

PBS_JOBID= 4727967

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=17-P1=13-P2=11-P3=19-P4=11-P5=23-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452812-1177980496/instance-452812-1177980496.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-452812-1177980496 -o ROOT/results/node24/solver-452812-1177980496 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452812-1177980496/instance-452812-1177980496.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  8f089c1c530fbf8e6ea9af6ce86dd685

RANDOM SEED= 196784041

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.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		: 3000.238
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		: 3000.238
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:       1849832 kB
Buffers:         33604 kB
Cached:          88376 kB
SwapCached:      17148 kB
Active:          67568 kB
Inactive:        77492 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1849832 kB
SwapTotal:     4192956 kB
SwapFree:      4143580 kB
Dirty:            6644 kB
Writeback:           0 kB
Mapped:          30028 kB
Slab:            46492 kB
Committed_AS:  3885892 kB
PageTables:       1808 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 node24 on Tue May  1 00:48:16 UTC 2007