Trace number 1877944

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 0.114981 0.115293

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=8-P0=157-P1=47-B.opb
MD5SUM65e30a452de5692ad7673801cf6b385e
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 benchmark0.002999
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 variables24
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 constraint8
Maximum length of a constraint72
Number of terms in the objective function 8
Biggest coefficient in the objective function 128
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 255
Number of bits of the sum of numbers in the objective function 8
Biggest number in a constraint 32768
Number of bits of the biggest number in a constraint 16
Biggest sum of numbers in a constraint 130516
Number of bits of the biggest sum of numbers17
Number of products (including duplicates)64
Sum of products size (including duplicates)128
Number of different products64
Sum of products size128

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-1877944-1245186800.opb
0.00/0.00	c File size is 4583 bytes.
0.00/0.00	c Highest Coefficient sum: 130516
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 88 Constr: 132 64/0/68 Lit: 544 Watch. Lit: 340
0.00/0.00	c Obj. Vars: 8 (9.09091 % of total variables)
0.00/0.00	c Pre-processing Time: 0.001 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0     88      132      544    4      468     725      0      0 0.00
0.00/0.00	c Switching off lower bounding mode.
0.09/0.10	c      100     88      232     5630   24      658     798    100  11111 0.01
0.09/0.10	c      252     88      384    13702   35      967     878    252  10956 0.02
0.09/0.10	c      478     88      610    26717   43     1419     966    478   9372 0.05
0.09/0.10	c      816     88      948    46555   49     2097    1063    816   8967 0.09
0.09/0.10	o 241
0.09/0.11	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.11	c      881     88     1014    50079   49     2234     741    882   8722 0.10
0.09/0.11	o 11
0.09/0.11	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.11	c      963     88      587    25654   43     1373     741    455   8598 0.11
0.09/0.11	o 3
0.09/0.11	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.11	c      974     48      599    25918   43     1401     733    467   8619 0.11
0.09/0.11	v x1 x2 -x3 -x4 -x5 -x6 -x7 -x8 x9 -x10 -x11 -x12 x13 x14 x15 x16 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 -x71 -x72 x73 x74 -x75 -x76 -x77 -x78 -x79 -x80 x81 x82 -x83 -x84 -x85 -x86 -x87 -x88 -x17 x18 -x19 -x20 -x21 -x22 -x23 -x24 
0.09/0.11	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.11	c    7      975     18     1206      600    25919    468   8628 0.11
0.09/0.11	c Objective: 3
0.09/0.11	s OPTIMUM FOUND
0.09/0.11	c Total time: 0.113 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-1877944-1245186800/watcher-1877944-1245186800 -o /tmp/evaluation-result-1877944-1245186800/solver-1877944-1245186800 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1877944-1245186800.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: 1.00 1.00 1.00 3/64 4138
/proc/meminfo: memFree=1835816/2055920 swapFree=4191900/4192956
[pid=4138] ppid=4136 vsize=18516 CPUtime=0
/proc/4138/stat : 4138 (bsolo) R 4136 4138 3375 0 -1 4194304 265 0 0 0 0 0 0 0 18 0 1 0 186280735 18960384 247 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/4138/statm: 4629 247 196 640 0 3985 0

[startup+0.0427159 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 4138
/proc/meminfo: memFree=1835816/2055920 swapFree=4191900/4192956
[pid=4138] ppid=4136 vsize=18772 CPUtime=0.04
/proc/4138/stat : 4138 (bsolo) R 4136 4138 3375 0 -1 4194304 339 0 0 0 4 0 0 0 18 0 1 0 186280735 19222528 321 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 0 0 0
/proc/4138/statm: 4693 321 196 640 0 4049 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 18772

[startup+0.101722 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 4138
/proc/meminfo: memFree=1835816/2055920 swapFree=4191900/4192956
[pid=4138] ppid=4136 vsize=19160 CPUtime=0.09
/proc/4138/stat : 4138 (bsolo) R 4136 4138 3375 0 -1 4194304 441 0 0 0 9 0 0 0 18 0 1 0 186280735 19619840 423 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/4138/statm: 4790 423 196 640 0 4146 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 19160

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

Child status: 0
Real time (s): 0.115293
CPU time (s): 0.114981
CPU user time (s): 0.111982
CPU system time (s): 0.002999
CPU usage (%): 99.7293
Max. virtual memory (cumulated for all children) (KiB): 19160

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.111982
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 446
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 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node9 at 2009-06-16 23:13:20
IDJOB=1877944
IDBENCH=47924
IDSOLVER=700
FILE ID=node9/1877944-1245186800
PBS_JOBID= 9363915
Free space on /tmp= 66160 MiB

SOLVER NAME= bsolo 3.1 cl
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=8-P0=157-P1=47-B.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877944-1245186800/watcher-1877944-1245186800 -o /tmp/evaluation-result-1877944-1245186800/solver-1877944-1245186800 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1877944-1245186800.opb

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

MD5SUM BENCH= 65e30a452de5692ad7673801cf6b385e
RANDOM SEED=995885938

node9.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1836296 kB
Buffers:         48336 kB
Cached:         104948 kB
SwapCached:        260 kB
Active:          50092 kB
Inactive:       115976 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1836296 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4252 kB
Writeback:           0 kB
Mapped:          21996 kB
Slab:            39632 kB
Committed_AS:   163944 kB
PageTables:       1392 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-1877944-1245186800.opb

Free space on /tmp at the end= 66160 MiB
End job on node9 at 2009-06-16 23:13:21