Trace number 452881

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 0.310952 0.313839

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/
factor-mod-size=5-P0=19-P1=5-P2=7-P3=19-P4=29-P5=29-B.opb
MD5SUM0c50e353180f99bdcd2c3c4c16004b51
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 benchmark0.042992
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/452881-1177990548/instance-452881-1177990548.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.
0.06/0.08	c      101    200      367     4684   12     1141    1685    101  11222 0.01
0.06/0.08	c      252    200      518     9486   18     1429    1854    252  14823 0.02
0.06/0.08	c      477    200      743    15933   21     1882    2040    477  17666 0.03
0.06/0.08	c      815    200     1081    24587   22     2557    2245    815  18111 0.04
0.06/0.08	o 13	0.077
0.09/0.15	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.15	c     1305    199     1572    36563   23     3548    1541   1306  16948 0.08
0.09/0.15	c     1406    199     1673    39370   23     3746    1696   1407  16541 0.09
0.09/0.15	c     1656    192     1923    45713   23     4246    1866   1657  15622 0.11
0.09/0.15	c     2134    192     1366    29210   21     3148    2053   1100  14616 0.15
0.09/0.15	o 9	0.154
0.09/0.17	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.17	c     2288    191     1521    32960   21     3464    1539   1255  14857 0.15
0.09/0.17	c     2388    191     1621    35523   21     3648    1693   1355  14832 0.16
0.09/0.17	o 7	0.175
0.19/0.22	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.22	c     2552    191     1786    39564   22     3975    1539   1520  14582 0.17
0.19/0.22	c     2654    191     1043    20598   19     2494    1693    777  14582 0.18
0.19/0.22	c     2904    191     1293    26651   20     2973    1863   1027  14235 0.20
0.19/0.22	o 5	0.218
0.19/0.23	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.23	c     3053    191     1443    30569   21     3297    1539   1177  14004 0.22
0.19/0.23	c     3153    184     1543    32758   21     3480    1693   1277  14075 0.22
0.19/0.23	o 3	0.226
0.29/0.31	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.31	c     3173    184     1564    33456   21     3539    1537   1298  14039 0.23
0.29/0.31	c     3274    168     1665    35992   21     3746    1691   1399  13991 0.23
0.29/0.31	c     3525    168     1916    42010   21     4235    1861   1650  13769 0.26
0.29/0.31	c     4000    157     1404    27439   19     3192    2048   1138  13201 0.30
0.29/0.31	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
0.29/0.31	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
0.29/0.31	v -x65 x46 x47 -x48 -x49 -x50 x66 -x67 -x68 -x69 -x70 x71 -x72 -x73 -x74 -x75
0.29/0.31	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.29/0.31	c   19     4039    246     5801     1443    27882   1177  13156 0.31
0.29/0.31	c Objective: 3
0.29/0.31	s OPTIMUM FOUND
0.29/0.31	c Total time: 0.307 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/node41/watcher-452881-1177990548 -o ROOT/results/node41/solver-452881-1177990548 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452881-1177990548/instance-452881-1177990548.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 1.00 0.99 3/77 27394
/proc/meminfo: memFree=1755216/2055920 swapFree=4169244/4192956
[pid=27394] ppid=27392 vsize=19552 CPUtime=0
/proc/27394/stat : 27394 (bsolo3.0.17) R 27392 27394 24944 0 -1 4194304 371 0 0 0 0 0 0 0 18 0 1 0 246966695 20021248 341 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 2397819 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27394/statm: 4888 343 289 324 0 3957 0

[startup+0.072862 s]
/proc/loadavg: 0.92 1.00 0.99 3/77 27394
/proc/meminfo: memFree=1755216/2055920 swapFree=4169244/4192956
[pid=27394] ppid=27392 vsize=4576 CPUtime=0.06
/proc/27394/stat : 27394 (bsolo3.0.17) R 27392 27394 24944 0 -1 4194304 550 0 0 0 6 0 0 0 18 0 1 0 246966695 4685824 519 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 2397819 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27394/statm: 1144 519 310 324 0 214 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4576

[startup+0.101864 s]
/proc/loadavg: 0.92 1.00 0.99 3/77 27394
/proc/meminfo: memFree=1755216/2055920 swapFree=4169244/4192956
[pid=27394] ppid=27392 vsize=4704 CPUtime=0.09
/proc/27394/stat : 27394 (bsolo3.0.17) R 27392 27394 24944 0 -1 4194304 594 0 0 0 9 0 0 0 18 0 1 0 246966695 4816896 563 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 2393941 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27394/statm: 1176 563 311 324 0 246 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4704

[startup+0.301881 s]
/proc/loadavg: 0.92 1.00 0.99 3/77 27394
/proc/meminfo: memFree=1755216/2055920 swapFree=4169244/4192956
[pid=27394] ppid=27392 vsize=4968 CPUtime=0.29
/proc/27394/stat : 27394 (bsolo3.0.17) R 27392 27394 24944 0 -1 4194304 640 0 0 0 29 0 0 0 19 0 1 0 246966695 5087232 609 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134571486 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27394/statm: 1242 609 311 324 0 312 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4968

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

Child status: 0
Real time (s): 0.313839
CPU time (s): 0.310952
CPU user time (s): 0.305953
CPU system time (s): 0.004999
CPU usage (%): 99.0801
Max. virtual memory (cumulated for all children) (KiB): 4968

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.305953
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= 644
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= 31

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue May  1 03:35:48 UTC 2007

IDJOB= 452881
IDBENCH= 47948
IDSOLVER= 199
FILE ID= node41/452881-1177990548

PBS_JOBID= 4728011

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=19-P1=5-P2=7-P3=19-P4=29-P5=29-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452881-1177990548/instance-452881-1177990548.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-452881-1177990548 -o ROOT/results/node41/solver-452881-1177990548 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452881-1177990548/instance-452881-1177990548.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  0c50e353180f99bdcd2c3c4c16004b51

RANDOM SEED= 873730851

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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:       1755688 kB
Buffers:         31336 kB
Cached:         179888 kB
SwapCached:       2568 kB
Active:          95712 kB
Inactive:       139376 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1755688 kB
SwapTotal:     4192956 kB
SwapFree:      4169244 kB
Dirty:            6608 kB
Writeback:           0 kB
Mapped:          31356 kB
Slab:            50420 kB
Committed_AS:  3641880 kB
PageTables:       2012 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 node41 on Tue May  1 03:35:49 UTC 2007