Trace number 432705

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 3.0.17UNSAT 5.79012 5.79677

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-bnl1.opb
MD5SUM86d589e9c21b90dfd700c7c422b09b8c
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 benchmark2.75758
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables35250
Total number of constraints624
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 constraints624
Minimum length of a constraint30
Maximum length of a constraint2280
Number of terms in the objective function 29490
Biggest coefficient in the objective function 6378
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 548620
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 548620
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 3.0.17 - 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/432705-1177948076/instance-432705-1177948076.opb
0.00/0.00	c File size is 1911324 bytes.
0.29/0.39	c Highest Coefficient sum: 548620
0.29/0.39	c Parsing was ok!!
0.29/0.39	c Total parsing time: 0.391 s
0.39/0.41	c Var: 35250 Constr: 855 29/0/826 Lit: 230310 Watch. Lit: 73944
0.39/0.41	c Obj. Vars: 29490 (83.6596 % of total variables)
5.68/5.79	c CONFLICT DETECTED at PROBING!!!
5.68/5.79	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
5.68/5.79	c    0        0      0        0      855   230310      0      0 5.78
5.68/5.79	s UNSATISFIABLE
5.68/5.79	c Total time: 5.784 s

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node5/watcher-432705-1177948076 -o ROOT/results/node5/solver-432705-1177948076 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/432705-1177948076/instance-432705-1177948076.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: 0.99 1.05 0.98 3/77 28837
/proc/meminfo: memFree=1844032/2055920 swapFree=4151596/4192956
[pid=28837] ppid=28835 vsize=13604 CPUtime=0
/proc/28837/stat : 28837 (bsolo3.0.17) R 28835 28837 28328 0 -1 4194304 362 0 0 0 0 0 0 0 18 0 1 0 270845233 13930496 332 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 8328827 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28837/statm: 3401 332 279 324 0 2004 0

[startup+0.0645981 s]
/proc/loadavg: 0.99 1.05 0.98 3/77 28837
/proc/meminfo: memFree=1844032/2055920 swapFree=4151596/4192956
[pid=28837] ppid=28835 vsize=16264 CPUtime=0.05
/proc/28837/stat : 28837 (bsolo3.0.17) R 28835 28837 28328 0 -1 4194304 1108 0 0 0 5 0 0 0 18 0 1 0 270845233 16654336 1038 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134545536 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28837/statm: 4066 1039 352 324 0 2669 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 16264

[startup+0.1016 s]
/proc/loadavg: 0.99 1.05 0.98 3/77 28837
/proc/meminfo: memFree=1844032/2055920 swapFree=4151596/4192956
[pid=28837] ppid=28835 vsize=16400 CPUtime=0.09
/proc/28837/stat : 28837 (bsolo3.0.17) R 28835 28837 28328 0 -1 4194304 1230 0 0 0 9 0 0 0 18 0 1 0 270845233 16793600 1160 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134525198 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28837/statm: 4100 1160 399 324 0 2703 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16400

[startup+0.301624 s]
/proc/loadavg: 0.99 1.05 0.98 3/77 28837
/proc/meminfo: memFree=1844032/2055920 swapFree=4151596/4192956
[pid=28837] ppid=28835 vsize=10748 CPUtime=0.29
/proc/28837/stat : 28837 (bsolo3.0.17) R 28835 28837 28328 0 -1 4194304 1989 0 0 0 28 1 0 0 19 0 1 0 270845233 11005952 1919 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 8353580 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28837/statm: 2687 1919 639 324 0 1290 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10748

[startup+0.701669 s]
/proc/loadavg: 0.99 1.05 0.98 3/77 28837
/proc/meminfo: memFree=1844032/2055920 swapFree=4151596/4192956
[pid=28837] ppid=28835 vsize=17140 CPUtime=0.69
/proc/28837/stat : 28837 (bsolo3.0.17) R 28835 28837 28328 0 -1 4194304 4165 0 0 0 68 1 0 0 23 0 1 0 270845233 17551360 3570 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134550866 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28837/statm: 4285 3570 304 324 0 3355 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17140

[startup+1.50176 s]
/proc/loadavg: 0.99 1.05 0.98 2/78 28838
/proc/meminfo: memFree=1830840/2055920 swapFree=4151596/4192956
[pid=28837] ppid=28835 vsize=17140 CPUtime=1.49
/proc/28837/stat : 28837 (bsolo3.0.17) R 28835 28837 28328 0 -1 4194304 4166 0 0 0 148 1 0 0 25 0 1 0 270845233 17551360 3571 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134551330 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28837/statm: 4285 3571 304 324 0 3355 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 17140

[startup+3.10194 s]
/proc/loadavg: 0.99 1.04 0.98 2/78 28838
/proc/meminfo: memFree=1830712/2055920 swapFree=4151596/4192956
[pid=28837] ppid=28835 vsize=17140 CPUtime=3.09
/proc/28837/stat : 28837 (bsolo3.0.17) R 28835 28837 28328 0 -1 4194304 4171 0 0 0 308 1 0 0 25 0 1 0 270845233 17551360 3576 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134550878 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28837/statm: 4285 3576 304 324 0 3355 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 17140

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

[startup+4.70112 s]
/proc/loadavg: 0.99 1.04 0.98 2/78 28838
/proc/meminfo: memFree=1830584/2055920 swapFree=4151596/4192956
[pid=28837] ppid=28835 vsize=17140 CPUtime=4.68
/proc/28837/stat : 28837 (bsolo3.0.17) R 28835 28837 28328 0 -1 4194304 4171 0 0 0 467 1 0 0 25 0 1 0 270845233 17551360 3576 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134551052 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28837/statm: 4285 3576 304 324 0 3355 0
Current children cumulated CPU time (s) 4.68
Current children cumulated vsize (KiB) 17140

[startup+5.50521 s]
/proc/loadavg: 0.99 1.04 0.98 2/78 28838
/proc/meminfo: memFree=1830584/2055920 swapFree=4151596/4192956
[pid=28837] ppid=28835 vsize=17140 CPUtime=5.49
/proc/28837/stat : 28837 (bsolo3.0.17) R 28835 28837 28328 0 -1 4194304 4171 0 0 0 548 1 0 0 25 0 1 0 270845233 17551360 3576 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134551179 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28837/statm: 4285 3576 304 324 0 3355 0
Current children cumulated CPU time (s) 5.49
Current children cumulated vsize (KiB) 17140

[startup+5.70123 s]
/proc/loadavg: 0.99 1.04 0.98 2/78 28838
/proc/meminfo: memFree=1830584/2055920 swapFree=4151596/4192956
[pid=28837] ppid=28835 vsize=17140 CPUtime=5.68
/proc/28837/stat : 28837 (bsolo3.0.17) R 28835 28837 28328 0 -1 4194304 4171 0 0 0 567 1 0 0 25 0 1 0 270845233 17551360 3576 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28837/statm: 4285 3576 304 324 0 3355 0
Current children cumulated CPU time (s) 5.68
Current children cumulated vsize (KiB) 17140

Child status: 0
Real time (s): 5.79677
CPU time (s): 5.79012
CPU user time (s): 5.76912
CPU system time (s): 0.020996
CPU usage (%): 99.8853
Max. virtual memory (cumulated for all children) (KiB): 17140

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.76912
system time used= 0.020996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4177
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= 119

runsolver used 0.008998 second user time and 0.021996 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Mon Apr 30 15:47:56 UTC 2007

IDJOB= 432705
IDBENCH= 1704
IDSOLVER= 199
FILE ID= node5/432705-1177948076

PBS_JOBID= 4727680

Free space on /tmp= 66556 MiB

SOLVER NAME= bsolo 3.0.17
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-bnl1.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/432705-1177948076/instance-432705-1177948076.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-432705-1177948076 -o ROOT/results/node5/solver-432705-1177948076 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/432705-1177948076/instance-432705-1177948076.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  86d589e9c21b90dfd700c7c422b09b8c

RANDOM SEED= 175741376

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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:       1844440 kB
Buffers:         32316 kB
Cached:          89984 kB
SwapCached:       9280 kB
Active:          49252 kB
Inactive:        95828 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1844440 kB
SwapTotal:     4192956 kB
SwapFree:      4151596 kB
Dirty:            8624 kB
Writeback:           0 kB
Mapped:          29792 kB
Slab:            52016 kB
Committed_AS:  9205108 kB
PageTables:       1720 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= 66556 MiB

End job on node5 on Mon Apr 30 15:48:02 UTC 2007