Trace number 363219

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 3.0.16Signal 0.422935 0.472788

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/
MIPLIB/miplib/normalized-reduced-mps-v2-20-10-p6000.opb
MD5SUMe2f15e37dec17456fb4044387114eb48
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-98107
Best CPU time to get the best result obtained on this benchmark47.8667
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -98107
Optimality of the best value was proved YES
Number of variables6000
Total number of constraints2171
Number of constraints which are clauses222
Number of constraints which are cardinality constraints (but not clauses)1914
Number of constraints which are nor clauses,nor cardinality constraints35
Minimum length of a constraint2
Maximum length of a constraint5998
Number of terms in the objective function 5995
Biggest coefficient in the objective function 3684
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 527319
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 25616
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 527319
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.05	c bsolo beta version 3.0.16 - 04/04/2007 : 1458 GMT
0.00/0.05	c Developed by Vasco Manquinho IST/UTL - INESC-ID
0.00/0.05	c type "bsolo -h" for help
0.00/0.05	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.05	c Time Limit set to 1800
0.00/0.05	c Memory Limit set to 1800 MB
0.00/0.05	c Instance file /tmp/evaluation/363219-1177024310/instance-363219-1177024310.opb
0.00/0.05	c File size is 251102 bytes.
0.00/0.09	c Highest Coefficient sum: 527319
0.00/0.09	c Parsing was ok!!
0.00/0.09	c Total parsing time: 0.046 s
0.04/0.10	c Var: 6000 Constr: 2294 421/1871/2 Lit: 18539 Watch. Lit: 14921
0.04/0.10	c Obj. Vars: 5995 (99.9167 % of total variables)
0.34/0.45	c Pre-processing Time: 0.407 s
0.34/0.45	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.34/0.45	c        0   5861     2001    17709    8    14944   27364      0      0 0.41
0.34/0.45	c Switching off LPR mode.

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node11/watcher-363219-1177024310 -o ROOT/results/node11/solver-363219-1177024310 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/363219-1177024310/instance-363219-1177024310.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 16595
/proc/meminfo: memFree=1771376/2055920 swapFree=4150532/4192956
[pid=16595] ppid=16593 vsize=1408 CPUtime=0
/proc/16595/stat : 16595 (bsolo3.0.16) D 16593 16595 16227 0 -1 4194304 41 0 0 0 0 0 0 0 18 0 1 0 143480001 1441792 25 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 7979812 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/16595/statm: 352 25 20 324 0 2 0

[startup+0.00821805 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 16595
/proc/meminfo: memFree=1771376/2055920 swapFree=4150532/4192956
[pid=16595] ppid=16593 vsize=1408 CPUtime=0
/proc/16595/stat : 16595 (bsolo3.0.16) D 16593 16595 16227 0 -1 4194304 41 0 0 0 0 0 0 0 18 0 1 0 143480001 1441792 25 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 7979812 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/16595/statm: 352 25 20 324 0 2 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1408

[startup+0.101239 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 16595
/proc/meminfo: memFree=1771376/2055920 swapFree=4150532/4192956
[pid=16595] ppid=16593 vsize=5628 CPUtime=0.04
/proc/16595/stat : 16595 (bsolo3.0.16) R 16593 16595 16227 0 -1 4194304 855 0 0 0 4 0 0 0 18 0 1 0 143480001 5763072 761 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4160316178 0 0 4096 16384 0 0 0 17 0 0 0
/proc/16595/statm: 1407 761 302 324 0 476 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5628

[startup+0.301256 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 16595
/proc/meminfo: memFree=1771376/2055920 swapFree=4150532/4192956
[pid=16595] ppid=16593 vsize=6056 CPUtime=0.24
/proc/16595/stat : 16595 (bsolo3.0.16) R 16593 16595 16227 0 -1 4194304 954 0 0 0 23 1 0 0 19 0 1 0 143480001 6201344 860 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 134545492 0 0 4096 16384 0 0 0 17 0 0 0
/proc/16595/statm: 1514 860 307 324 0 583 0
Current children cumulated CPU time (s) 0.24
Current children cumulated vsize (KiB) 6056

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

[startup+0.401268 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 16595
/proc/meminfo: memFree=1771376/2055920 swapFree=4150532/4192956
[pid=16595] ppid=16593 vsize=5868 CPUtime=0.34
/proc/16595/stat : 16595 (bsolo3.0.16) R 16593 16595 16227 0 -1 4194304 954 0 0 0 33 1 0 0 20 0 1 0 143480001 6008832 845 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 134540869 0 0 4096 16384 0 0 0 17 0 0 0
/proc/16595/statm: 1467 845 307 324 0 536 0
Current children cumulated CPU time (s) 0.34
Current children cumulated vsize (KiB) 5868

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 0.472788
CPU time (s): 0.422935
CPU user time (s): 0.39294
CPU system time (s): 0.029995
CPU usage (%): 89.4555
Max. virtual memory (cumulated for all children) (KiB): 6056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.39294
system time used= 0.029995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 973
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= 14

runsolver used 0.002999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node11 on Thu Apr 19 23:11:50 UTC 2007

IDJOB= 363219
IDBENCH= 1760
IDSOLVER= 163
FILE ID= node11/363219-1177024310

PBS_JOBID= 4630600

Free space on /tmp= 66253 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/miplib/normalized-reduced-mps-v2-20-10-p6000.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/363219-1177024310/instance-363219-1177024310.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-363219-1177024310 -o ROOT/results/node11/solver-363219-1177024310 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/363219-1177024310/instance-363219-1177024310.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  e2f15e37dec17456fb4044387114eb48

RANDOM SEED= 972182623

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node11.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		: 3000.235
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		: 3000.235
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:       1771976 kB
Buffers:         33180 kB
Cached:         164560 kB
SwapCached:      10952 kB
Active:          79644 kB
Inactive:       141836 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1771976 kB
SwapTotal:     4192956 kB
SwapFree:      4150532 kB
Dirty:            4644 kB
Writeback:           0 kB
Mapped:          30740 kB
Slab:            47956 kB
Committed_AS:  6193276 kB
PageTables:       1852 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= 66251 MiB

End job on node11 on Thu Apr 19 23:11:51 UTC 2007