Trace number 1877961

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 NameAnswerobjCPU timeWall clock time
bsolo 3.1 clOPT3 0.048992 0.04945

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=7-P0=37-P1=43-B.opb
MD5SUM2fc96c84e9a32377eb9e70bf4047222f
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.002998
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables21
Total number of constraints3
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 constraints3
Minimum length of a constraint7
Maximum length of a constraint56
Number of terms in the objective function 7
Biggest coefficient in the objective function 64
Number of bits for the biggest coefficient in the objective function 7
Sum of the numbers in the objective function 127
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 8192
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 32440
Number of bits of the biggest sum of numbers15
Number of products (including duplicates)49
Sum of products size (including duplicates)98
Number of different products49
Sum of products size98

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.00/0.00	c bsolo beta version 3.1 - 13/04/2009 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos 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 Learning Strategy: Clause Learning
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 HOME/instance-1877961-1245187009.opb
0.00/0.00	c File size is 3531 bytes.
0.00/0.00	c Highest Coefficient sum: 32440
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 70 Constr: 102 49/0/53 Lit: 420 Watch. Lit: 265
0.00/0.00	c Obj. Vars: 7 (10 % of total variables)
0.00/0.00	c Pre-processing Time: 0 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0     70      102      420    4      361     562      0 -2147483648 0.00
0.00/0.00	c Switching off lower bounding mode.
0.03/0.04	c      104     70      206     4365   21      560     619    104  11555 0.01
0.03/0.04	c      255     70      357    10141   28      868     681    255  11590 0.02
0.03/0.04	c      480     70      582    19534   33     1317     750    480  10909 0.04
0.03/0.04	o 61
0.03/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.03/0.04	c      482     70      585    19634   33     1331     576    483  10954 0.04
0.03/0.04	o 11
0.03/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.03/0.04	c      483     70      587    19684   33     1340     576    485  10977 0.04
0.03/0.04	o 7
0.03/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.03/0.04	c      501     70      606    20463   33     1384     576    504  10891 0.05
0.03/0.04	o 5
0.03/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.03/0.04	c      504     62      610    20520   33     1386     574    508  10723 0.05
0.03/0.04	o 3
0.03/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.03/0.04	c      505     62      612    20564   33     1395     574    510  10744 0.05
0.03/0.04	v x1 x2 -x3 -x4 -x5 -x6 -x7 x8 -x9 x10 x11 x12 x13 -x14 x22 x23 -x24 -x25 -x26 -x27 -x28 -x29 -x30 -x31 -x32 -x33 -x34 -x35 x36 x37 -x38 -x39 -x40 -x41 -x42 x43 x44 -x45 -x46 -x47 -x48 -x49 x50 x51 -x52 -x53 -x54 -x55 -x56 x57 x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 x15 -x16 -x17 -x18 -x19 -x20 -x21 
0.03/0.04	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.03/0.04	c    8      508     10      646      615    20568    513  10808 0.05
0.03/0.04	c Objective: 3
0.03/0.04	s OPTIMUM FOUND
0.03/0.04	c Total time: 0.047 s

Verifier Data 

OK	3

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1877961-1245187009/watcher-1877961-1245187009 -o /tmp/evaluation-result-1877961-1245187009/solver-1877961-1245187009 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1877961-1245187009.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.89 1.63 1.31 3/64 8417
/proc/meminfo: memFree=1561796/2055920 swapFree=4178716/4192956
[pid=8417] ppid=8415 vsize=18516 CPUtime=0
/proc/8417/stat : 8417 (bsolo) R 8415 8417 6718 0 -1 4194304 261 0 0 0 0 0 0 0 18 0 1 0 186298772 18960384 244 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/8417/statm: 4629 244 196 640 0 3985 0

[startup+0.0378241 s]
/proc/loadavg: 1.89 1.63 1.31 3/64 8417
/proc/meminfo: memFree=1561796/2055920 swapFree=4178716/4192956
[pid=8417] ppid=8415 vsize=18644 CPUtime=0.03
/proc/8417/stat : 8417 (bsolo) R 8415 8417 6718 0 -1 4194304 319 0 0 0 3 0 0 0 18 0 1 0 186298772 19091456 302 1992294400 134512640 137136520 4294956256 18446744073709551615 136503059 0 0 4096 16384 0 0 0 17 0 0 0
/proc/8417/statm: 4661 302 196 640 0 4017 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 18644

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

[startup+0.0378241 s]
/proc/loadavg: 1.89 1.63 1.31 3/64 8417
/proc/meminfo: memFree=1561796/2055920 swapFree=4178716/4192956
[pid=8417] ppid=8415 vsize=18644 CPUtime=0.03
/proc/8417/stat : 8417 (bsolo) R 8415 8417 6718 0 -1 4194304 319 0 0 0 3 0 0 0 18 0 1 0 186298772 19091456 302 1992294400 134512640 137136520 4294956256 18446744073709551615 136503059 0 0 4096 16384 0 0 0 17 0 0 0
/proc/8417/statm: 4661 302 196 640 0 4017 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 18644

Child status: 0
Real time (s): 0.04945
CPU time (s): 0.048992
CPU user time (s): 0.044993
CPU system time (s): 0.003999
CPU usage (%): 99.0738
Max. virtual memory (cumulated for all children) (KiB): 18644

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.044993
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 337
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= 2
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node90 at 2009-06-16 23:16:49
IDJOB=1877961
IDBENCH=47941
IDSOLVER=700
FILE ID=node90/1877961-1245187009
PBS_JOBID= 9368280
Free space on /tmp= 66528 MiB

SOLVER NAME= bsolo 3.1 cl
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=7-P0=37-P1=43-B.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877961-1245187009/watcher-1877961-1245187009 -o /tmp/evaluation-result-1877961-1245187009/solver-1877961-1245187009 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1877961-1245187009.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 2fc96c84e9a32377eb9e70bf4047222f
RANDOM SEED=1738419054

node90.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.231
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		: 3000.231
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1562276 kB
Buffers:         33012 kB
Cached:         393808 kB
SwapCached:       8448 kB
Active:          59768 kB
Inactive:       377676 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1562276 kB
SwapTotal:     4192956 kB
SwapFree:      4178716 kB
Dirty:            4060 kB
Writeback:           0 kB
Mapped:          16268 kB
Slab:            42200 kB
Committed_AS:    94956 kB
PageTables:       1436 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-1877961-1245187009.opb

Free space on /tmp at the end= 66524 MiB
End job on node90 at 2009-06-16 23:16:49