Trace number 1877986

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 0.046992 0.0469679

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=6-P0=59-P1=37-B.opb
MD5SUMecd8e533e3641a4c2c49e9e1d3d0ce44
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 benchmark0.001999
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 variables18
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 constraint6
Maximum length of a constraint42
Number of terms in the objective function 6
Biggest coefficient in the objective function 32
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 63
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 2048
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 8008
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)36
Sum of products size (including duplicates)72
Number of different products36
Sum of products size72

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-1877986-1245187377.opb
0.00/0.00	c File size is 2625 bytes.
0.00/0.00	c Highest Coefficient sum: 8008
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 54 Constr: 76 36/0/40 Lit: 312 Watch. Lit: 200
0.00/0.00	c Obj. Vars: 6 (11.1111 % 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     54       76      312    4      268     419      0 -2147483648 0.00
0.00/0.00	c Switching off lower bounding mode.
0.00/0.04	c      100     54      176     3100   17      460     461    100  16666 0.01
0.00/0.04	c      250     54      326     7570   23      766     508    250  15625 0.02
0.00/0.04	c      475     54      551    14682   26     1209     559    475  14393 0.03
0.00/0.04	o 27
0.00/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.04	c      548     54      625    17016   27     1365     431    549  13700 0.04
0.00/0.04	o 9
0.00/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.04	c      591     54      337     8507   25      794     431    261  13431 0.04
0.00/0.04	o 5
0.00/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.04	c      600     46      347     8638   24      816     429    271  13333 0.04
0.00/0.04	o 3
0.00/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.04	c      600     46      348     8643   24      821     429    272  13333 0.04
0.00/0.04	v x1 x2 -x3 -x4 -x5 -x6 x7 -x8 x9 x10 -x11 x12 x19 x20 -x21 -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 -x13 x14 -x15 -x16 -x17 -x18 
0.00/0.04	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.00/0.04	c    7      601     10      678      349     8644    273  13355 0.04
0.00/0.04	c Objective: 3
0.00/0.04	s OPTIMUM FOUND
0.00/0.04	c Total time: 0.045 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-1877986-1245187377/watcher-1877986-1245187377 -o /tmp/evaluation-result-1877986-1245187377/solver-1877986-1245187377 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1877986-1245187377.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 6223
/proc/meminfo: memFree=1884976/2055920 swapFree=4192812/4192956
[pid=6223] ppid=6221 vsize=18516 CPUtime=0
/proc/6223/stat : 6223 (bsolo) R 6221 6223 5825 0 -1 4194304 260 0 0 0 0 0 0 0 18 0 1 0 186334732 18960384 243 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/6223/statm: 4629 244 196 640 0 3985 0

[startup+0.00765892 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 6223
/proc/meminfo: memFree=1884976/2055920 swapFree=4192812/4192956
[pid=6223] ppid=6221 vsize=18516 CPUtime=0
/proc/6223/stat : 6223 (bsolo) R 6221 6223 5825 0 -1 4194304 265 0 0 0 0 0 0 0 18 0 1 0 186334732 18960384 248 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 0 0 0
/proc/6223/statm: 4629 248 196 640 0 3985 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 18516

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

[startup+0.00765892 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 6223
/proc/meminfo: memFree=1884976/2055920 swapFree=4192812/4192956
[pid=6223] ppid=6221 vsize=18516 CPUtime=0
/proc/6223/stat : 6223 (bsolo) R 6221 6223 5825 0 -1 4194304 265 0 0 0 0 0 0 0 18 0 1 0 186334732 18960384 248 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 0 0 0
/proc/6223/statm: 4629 248 196 640 0 3985 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 18516

Child status: 0
Real time (s): 0.0469679
CPU time (s): 0.046992
CPU user time (s): 0.044993
CPU system time (s): 0.001999
CPU usage (%): 100.051
Max. virtual memory (cumulated for all children) (KiB): 18516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.044993
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 326
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 node45 at 2009-06-16 23:22:57
IDJOB=1877986
IDBENCH=47966
IDSOLVER=700
FILE ID=node45/1877986-1245187377
PBS_JOBID= 9363928
Free space on /tmp= 66172 MiB

SOLVER NAME= bsolo 3.1 cl
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=59-P1=37-B.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877986-1245187377/watcher-1877986-1245187377 -o /tmp/evaluation-result-1877986-1245187377/solver-1877986-1245187377 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1877986-1245187377.opb

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

MD5SUM BENCH= ecd8e533e3641a4c2c49e9e1d3d0ce44
RANDOM SEED=827267487

node45.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		: 3000.240
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		: 3000.240
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:       1885584 kB
Buffers:         40832 kB
Cached:          66468 kB
SwapCached:        140 kB
Active:          61656 kB
Inactive:        59688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1885584 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3948 kB
Writeback:           0 kB
Mapped:          23756 kB
Slab:            35184 kB
Committed_AS:   162676 kB
PageTables:       1384 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-1877986-1245187377.opb

Free space on /tmp at the end= 66168 MiB
End job on node45 at 2009-06-16 23:22:58