Trace number 362981

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 3.0.16UNSAT 1.91971 1.92244

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-reduced-mps-v2-20-10-pilot.opb
MD5SUM3b411a9d6011bc35efb221797d9fcf38
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark1.92771
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables86785
Total number of constraints2481
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 constraints2481
Minimum length of a constraint10
Maximum length of a constraint7620
Number of terms in the objective function 840
Biggest coefficient in the objective function 21170
Number of bits for the biggest coefficient in the objective function 15
Sum of the numbers in the objective function 524903
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262145
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 530339
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)

0.00/0.00	c bsolo beta version 3.0.16 - 04/04/2007 : 1458 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 Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/362981-1177021451/instance-362981-1177021451.opb
0.00/0.00	c File size is 8678179 bytes.
1.69/1.75	c Highest Coefficient sum: 530339
1.69/1.75	c Parsing was ok!!
1.69/1.75	c Total parsing time: 1.751 s
1.79/1.83	c Var: 86785 Constr: 2714 14/0/2700 Lit: 921481 Watch. Lit: 335607
1.79/1.83	c Obj. Vars: 840 (0.967909 % of total variables)
1.89/1.91	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
1.89/1.91	c    0        0      0        0     2714   921481      0      0 1.91
1.89/1.91	s UNSATISFIABLE
1.89/1.91	c Total time: 1.91 s

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/node6/watcher-362981-1177021451 -o ROOT/results/node6/solver-362981-1177021451 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/362981-1177021451/instance-362981-1177021451.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 8980
/proc/meminfo: memFree=1799416/2055924 swapFree=4146720/4192956
[pid=8980] ppid=8978 vsize=20212 CPUtime=0
/proc/8980/stat : 8980 (bsolo3.0.16) R 8978 8980 8292 0 -1 4194304 368 0 0 0 0 0 0 0 18 0 1 0 178182774 20697088 336 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 2623099 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8980/statm: 5053 336 281 324 0 2003 0

[startup+0.0111179 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 8980
/proc/meminfo: memFree=1799416/2055924 swapFree=4146720/4192956
[pid=8980] ppid=8978 vsize=12684 CPUtime=0
/proc/8980/stat : 8980 (bsolo3.0.16) R 8978 8980 8292 0 -1 4194304 436 0 0 0 0 0 0 0 18 0 1 0 178182774 12988416 404 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 134525337 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8980/statm: 3171 404 292 324 0 121 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12684

[startup+0.101129 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 8980
/proc/meminfo: memFree=1799416/2055924 swapFree=4146720/4192956
[pid=8980] ppid=8978 vsize=14904 CPUtime=0.09
/proc/8980/stat : 8980 (bsolo3.0.16) R 8978 8980 8292 0 -1 4194304 1139 0 0 0 9 0 0 0 18 0 1 0 178182774 15261696 1067 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 2623099 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8980/statm: 3726 1067 416 324 0 676 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 14904

[startup+0.301151 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 8980
/proc/meminfo: memFree=1799416/2055924 swapFree=4146720/4192956
[pid=8980] ppid=8978 vsize=17912 CPUtime=0.29
/proc/8980/stat : 8980 (bsolo3.0.16) R 8978 8980 8292 0 -1 4194304 2260 0 0 0 29 0 0 0 19 0 1 0 178182774 18341888 2060 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 2623099 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8980/statm: 4478 2060 679 324 0 1428 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17912

[startup+0.701201 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 8980
/proc/meminfo: memFree=1799416/2055924 swapFree=4146720/4192956
[pid=8980] ppid=8978 vsize=21884 CPUtime=0.69
/proc/8980/stat : 8980 (bsolo3.0.16) R 8978 8980 8292 0 -1 4194304 3777 0 0 0 68 1 0 0 23 0 1 0 178182774 22409216 3577 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 134587020 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8980/statm: 5471 3578 1164 324 0 2421 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 21884

[startup+1.5013 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 8981
/proc/meminfo: memFree=1787184/2055924 swapFree=4146720/4192956
[pid=8980] ppid=8978 vsize=28556 CPUtime=1.49
/proc/8980/stat : 8980 (bsolo3.0.16) R 8978 8980 8292 0 -1 4194304 6394 0 0 0 148 1 0 0 25 0 1 0 178182774 29241344 6037 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 2623099 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8980/statm: 7139 6037 2081 324 0 4089 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 28556

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

[startup+1.90234 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 8981
/proc/meminfo: memFree=1787184/2055924 swapFree=4146720/4192956
[pid=8980] ppid=8978 vsize=39164 CPUtime=1.89
/proc/8980/stat : 8980 (bsolo3.0.16) R 8978 8980 8292 0 -1 4194304 11329 0 0 0 186 3 0 0 25 0 1 0 178182774 40103936 8853 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 2623099 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8980/statm: 9791 8854 306 324 0 8860 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 39164

Child status: 0
Real time (s): 1.92244
CPU time (s): 1.91971
CPU user time (s): 1.87571
CPU system time (s): 0.043993
CPU usage (%): 99.8578
Max. virtual memory (cumulated for all children) (KiB): 39164

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.87571
system time used= 0.043993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11405
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= 37

runsolver used 0.002999 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node6 on Thu Apr 19 22:24:11 UTC 2007

IDJOB= 362981
IDBENCH= 1703
IDSOLVER= 163
FILE ID= node6/362981-1177021451

PBS_JOBID= 4630589

Free space on /tmp= 66407 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-pilot.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/362981-1177021451/instance-362981-1177021451.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-362981-1177021451 -o ROOT/results/node6/solver-362981-1177021451 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/362981-1177021451/instance-362981-1177021451.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  3b411a9d6011bc35efb221797d9fcf38

RANDOM SEED= 893950249

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node6.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:      2055924 kB
MemFree:       1799888 kB
Buffers:         31712 kB
Cached:         159932 kB
SwapCached:      13376 kB
Active:          83252 kB
Inactive:       131384 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1799888 kB
SwapTotal:     4192956 kB
SwapFree:      4146720 kB
Dirty:           12876 kB
Writeback:           0 kB
Mapped:          30228 kB
Slab:            27072 kB
Committed_AS:  6975440 kB
PageTables:       1784 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= 66407 MiB

End job on node6 on Thu Apr 19 22:24:13 UTC 2007