Trace number 454110

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 3.0.16OPT-12 0.490924 0.491184

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_10_1.opb
MD5SUM85943b997cdad21dc5e2becf1aafbf8b
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-12
Best CPU time to get the best result obtained on this benchmark0.174972
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -12
Optimality of the best value was proved YES
Number of variables50
Total number of constraints50
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 constraints50
Minimum length of a constraint10
Maximum length of a constraint18
Number of terms in the objective function 50
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 50
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)610
Sum of products size (including duplicates)1220
Number of different products305
Sum of products size610

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 3.0.16 - 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/454110-1178021382/instance-454110-1178021382.opb
0.00/0.00	c File size is 7332 bytes.
0.00/0.00	c Highest Coefficient sum: 50
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.004 s
0.00/0.00	c Var: 660 Constr: 1320 660/50/610 Lit: 4880 Watch. Lit: 3660
0.00/0.00	c Obj. Vars: 50 (7.57576 % of total variables)
0.00/0.01	c Pre-processing Time: 0.009 s
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0     50      305      915    3      610     101      0      0 0.01
0.00/0.01	c Switching off LPR mode.
0.00/0.01	o -10	0.009
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0     50      306      965    3      622     284      1      0 0.01
0.00/0.01	c      100     50      406     4568   11      822     313    101   7692 0.01
0.00/0.01	o -12	0.013
0.39/0.48	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.39/0.48	c      100     50      407     4618   11      836     318    102   7692 0.01
0.39/0.48	c      201     50      508     8080   15     1038     350    203  11166 0.02
0.39/0.48	c      451     50      758    16498   21     1538     386    453  13264 0.03
0.39/0.48	c      927     49     1234    32325   26     2489     425    929  13056 0.07
0.39/0.48	c     1740     48     1201    29726   24     2412     468    896  13082 0.13
0.39/0.48	c     3060     46      791    15068   19     1590     515    486  11860 0.26
0.39/0.48	c     5141     37     1100    19522   17     2199     567    795  11983 0.43
0.39/0.48	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
0.39/0.48	v -x30 -x31 x32 x33 x34 -x35 -x36 -x37 -x38 -x39 -x40 x41 -x42 x43 -x44 -x45 -x46 x47 -x48 -x49 -x50
0.39/0.48	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.39/0.48	c    9     5598    181     5832      663     6225    358  11542 0.48
0.39/0.48	c Objective: -12
0.39/0.48	s OPTIMUM FOUND
0.39/0.48	c Total time: 0.485 s

Verifier Data (download as text)

OK	-12

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node62/watcher-454110-1178021382 -o ROOT/results/node62/solver-454110-1178021382 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/454110-1178021382/instance-454110-1178021382.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: 0.61 0.90 0.95 3/64 18315
/proc/meminfo: memFree=1800448/2055920 swapFree=4184544/4192956
[pid=18315] ppid=18313 vsize=19556 CPUtime=0
/proc/18315/stat : 18315 (bsolo3.0.16) R 18313 18315 17784 0 -1 4194304 375 0 0 0 0 0 0 0 18 0 1 0 120714165 20025344 344 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 8446824 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18315/statm: 4889 345 291 324 0 3956 0

[startup+0.0363271 s]
/proc/loadavg: 0.61 0.90 0.95 3/64 18315
/proc/meminfo: memFree=1800448/2055920 swapFree=4184544/4192956
[pid=18315] ppid=18313 vsize=4332 CPUtime=0.03
/proc/18315/stat : 18315 (bsolo3.0.16) R 18313 18315 17784 0 -1 4194304 510 0 0 0 3 0 0 0 18 0 1 0 120714165 4435968 477 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18315/statm: 1083 477 313 324 0 152 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 4332

[startup+0.101335 s]
/proc/loadavg: 0.61 0.90 0.95 3/64 18315
/proc/meminfo: memFree=1800448/2055920 swapFree=4184544/4192956
[pid=18315] ppid=18313 vsize=4720 CPUtime=0.09
/proc/18315/stat : 18315 (bsolo3.0.16) R 18313 18315 17784 0 -1 4194304 580 0 0 0 9 0 0 0 18 0 1 0 120714165 4833280 547 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18315/statm: 1180 547 313 324 0 249 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4720

[startup+0.301358 s]
/proc/loadavg: 0.61 0.90 0.95 3/64 18315
/proc/meminfo: memFree=1800448/2055920 swapFree=4184544/4192956
[pid=18315] ppid=18313 vsize=4720 CPUtime=0.29
/proc/18315/stat : 18315 (bsolo3.0.16) R 18313 18315 17784 0 -1 4194304 583 0 0 0 29 0 0 0 19 0 1 0 120714165 4833280 550 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18315/statm: 1180 550 313 324 0 249 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4720

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

[startup+0.40137 s]
/proc/loadavg: 0.61 0.90 0.95 3/64 18315
/proc/meminfo: memFree=1800448/2055920 swapFree=4184544/4192956
[pid=18315] ppid=18313 vsize=4720 CPUtime=0.39
/proc/18315/stat : 18315 (bsolo3.0.16) R 18313 18315 17784 0 -1 4194304 583 0 0 0 39 0 0 0 19 0 1 0 120714165 4833280 550 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18315/statm: 1180 550 313 324 0 249 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 4720

Child status: 0
Real time (s): 0.491184
CPU time (s): 0.490924
CPU user time (s): 0.483926
CPU system time (s): 0.006998
CPU usage (%): 99.9471
Max. virtual memory (cumulated for all children) (KiB): 4720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.483926
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= 584
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= 0

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node62 on Tue May  1 12:09:42 UTC 2007

IDJOB= 454110
IDBENCH= 48175
IDSOLVER= 163
FILE ID= node62/454110-1178021382

PBS_JOBID= 4728387

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_10_1.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/454110-1178021382/instance-454110-1178021382.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node62/watcher-454110-1178021382 -o ROOT/results/node62/solver-454110-1178021382 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/454110-1178021382/instance-454110-1178021382.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  85943b997cdad21dc5e2becf1aafbf8b

RANDOM SEED= 754827935

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node62.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		: 3000.216
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		: 3000.216
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:       1800920 kB
Buffers:         28368 kB
Cached:         153956 kB
SwapCached:       2296 kB
Active:          78452 kB
Inactive:       113508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1800920 kB
SwapTotal:     4192956 kB
SwapFree:      4184544 kB
Dirty:            6956 kB
Writeback:           0 kB
Mapped:          15864 kB
Slab:            49072 kB
Committed_AS:  1381416 kB
PageTables:       1460 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 node62 on Tue May  1 12:09:42 UTC 2007