Trace number 452878

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 0.259959 0.305322

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/
factor-mod-size=5-P0=23-P1=29-P2=23-P3=19-P4=2-P5=23-B.opb
MD5SUMaf6a557bae55dcfbf0cc06cf0559c9b3
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 benchmark0.041992
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 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/452878-1177989986/instance-452878-1177989986.opb
0.00/0.00	c File size is 2671 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.
0.00/0.03	c      101    200      367     4650   12     1146    1685    101  12625 0.01
0.00/0.03	c      252    200      518     8672   16     1449    1854    252  18000 0.01
0.00/0.03	c      479    200      745    14937   20     1878    2040    479  19958 0.02
0.00/0.03	o 25	0.027
0.00/0.06	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.06	c      523    200      790    16119   20     1972    1541    524  19370 0.03
0.00/0.06	c      625    200      892    18979   21     2186    1696    626  19531 0.03
0.00/0.06	c      875    200     1142    26087   22     2662    1866    876  18617 0.05
0.00/0.06	o 11	0.064
0.19/0.23	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.23	c     1164    200     1432    34307   23     3263    1541   1166  18187 0.06
0.19/0.23	c     1265    200     1533    37757   24     3483    1696   1267  17094 0.07
0.19/0.23	c     1515    200     1783    44397   24     3969    1866   1517  17215 0.09
0.19/0.23	c     1991    200     1219    27658   22     2846    2053    953  15198 0.13
0.19/0.23	c     2804    193     2032    50037   24     4451    2259   1766  12517 0.22
0.19/0.23	o 3	0.23
0.19/0.25	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.25	c     2878    193     2107    52222   24     4629    1539   1841  12513 0.23
0.19/0.25	c     2978    193     1138    24068   21     2659    1693    872  12305 0.24
0.19/0.25	o 2	0.249
0.19/0.26	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.26	c     3052    193     1213    25827   21     2831    1539    947  12257 0.25
0.19/0.26	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
0.19/0.26	v x32 -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
0.19/0.26	v -x64 -x65 -x46 x47 x48 -x49 x50 x66 -x67 -x68 -x69 -x70 -x71 x72 -x73 -x74 -x75
0.19/0.26	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.26	c   14     3142    296     4683     1303    28609   1037  12321 0.26
0.19/0.26	c Objective: 2
0.19/0.26	s OPTIMUM FOUND
0.19/0.26	c Total time: 0.255 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/node12/watcher-452878-1177989986 -o ROOT/results/node12/solver-452878-1177989986 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452878-1177989986/instance-452878-1177989986.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 3/77 8600
/proc/meminfo: memFree=1787064/2055920 swapFree=4160072/4192956
[pid=8600] ppid=8598 vsize=11740 CPUtime=0
/proc/8600/stat : 8600 (bsolo3.0.17) R 8598 8600 3287 0 -1 4194304 376 0 0 0 0 0 0 0 18 0 1 0 275036005 12021760 346 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 10131067 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8600/statm: 982 346 290 324 0 51 0

[startup+0.0128171 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 8600
/proc/meminfo: memFree=1787064/2055920 swapFree=4160072/4192956
[pid=8600] ppid=8598 vsize=4056 CPUtime=0
/proc/8600/stat : 8600 (bsolo3.0.17) R 8598 8600 3287 0 -1 4194304 428 0 0 0 0 0 0 0 18 0 1 0 275036005 4153344 397 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8600/statm: 1014 397 310 324 0 84 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4056

[startup+0.101826 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 8600
/proc/meminfo: memFree=1787064/2055920 swapFree=4160072/4192956
[pid=8600] ppid=8598 vsize=4832 CPUtime=0.09
/proc/8600/stat : 8600 (bsolo3.0.17) R 8598 8600 3287 0 -1 4194304 611 0 0 0 9 0 0 0 18 0 1 0 275036005 4947968 580 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 10131067 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8600/statm: 1208 580 311 324 0 278 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4832

[startup+0.301847 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 8600
/proc/meminfo: memFree=1787064/2055920 swapFree=4160072/4192956
[pid=8600] ppid=8598 vsize=0 CPUtime=0.25
/proc/8600/stat : 8600 (bsolo3.0.17) D 8598 8600 3287 0 -1 4194308 657 0 0 0 25 0 0 0 15 0 1 0 275036005 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 16384 18446744072100051646 0 0 17 0 0 0
/proc/8600/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.25
Current children cumulated vsize (KiB) 0

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

Child status: 0
Real time (s): 0.305322
CPU time (s): 0.259959
CPU user time (s): 0.252961
CPU system time (s): 0.006998
CPU usage (%): 85.1426
Max. virtual memory (cumulated for all children) (KiB): 4968

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.252961
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 657
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= 6

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node12 on Tue May  1 03:26:26 UTC 2007

IDJOB= 452878
IDBENCH= 47945
IDSOLVER= 199
FILE ID= node12/452878-1177989986

PBS_JOBID= 4728195

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=23-P1=29-P2=23-P3=19-P4=2-P5=23-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452878-1177989986/instance-452878-1177989986.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node12/watcher-452878-1177989986 -o ROOT/results/node12/solver-452878-1177989986 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452878-1177989986/instance-452878-1177989986.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  af6a557bae55dcfbf0cc06cf0559c9b3

RANDOM SEED= 873751746

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node12.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		: 3000.239
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		: 3000.239
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:       1787472 kB
Buffers:         53600 kB
Cached:         124072 kB
SwapCached:      11572 kB
Active:         107556 kB
Inactive:        97432 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1787472 kB
SwapTotal:     4192956 kB
SwapFree:      4160072 kB
Dirty:            6652 kB
Writeback:           0 kB
Mapped:          33716 kB
Slab:            49020 kB
Committed_AS:  7108376 kB
PageTables:       1804 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 node12 on Tue May  1 03:26:27 UTC 2007