Trace number 431122

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 3.0.16OPT3 0.106983 0.10822

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=6-P0=61-P1=67-B.opb
MD5SUM8f19d4e159bd0c5a74f8bd44919a7821
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 benchmark0.005999
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 8056
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 (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/431122-1178002917/instance-431122-1178002917.opb
0.00/0.00	c File size is 880 bytes.
0.00/0.00	c Highest Coefficient sum: 8056
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.001 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: 0.001 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0     54       76      312    4      268     419      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.09/0.10	c      101     54      177     3128   17      462     461    101  16833 0.01
0.09/0.10	c      252     54      328     7540   22      770     508    252  18000 0.01
0.09/0.10	c      478     54      554    14701   26     1213     559    478  14937 0.03
0.09/0.10	c      816     54      572    16057   28     1251     615    496  15111 0.05
0.09/0.10	c     1326     54      407    10756   26      914     677    331  14898 0.09
0.09/0.10	o 7	0.101
0.09/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.10	c     1527     51      609    16961   27     1333     429    533  15118 0.10
0.09/0.10	o 5	0.102
0.09/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.10	c     1542     27      310     7085   22      733     423    234  15117 0.10
0.09/0.10	o 3	0.103
0.09/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.10	c     1545      0      314     7088   22      736     419    238  15000 0.10
0.09/0.10	v x1 x2 -x3 -x4 -x5 -x6 x7 -x8 x9 x10 x11 x12 -x13 x14 -x15 -x16 -x17 -x18
0.09/0.10	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.10	c    8     1545      7     1611      314     7088    238  15000 0.10
0.09/0.10	c Objective: 3
0.09/0.10	s OPTIMUM FOUND
0.09/0.10	c Total time: 0.103 s

Verifier Data (download as text)

OK	3

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node68/watcher-431122-1178002917 -o ROOT/results/node68/solver-431122-1178002917 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/431122-1178002917/instance-431122-1178002917.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: 0.91 0.99 0.99 3/64 2818
/proc/meminfo: memFree=1778056/2055920 swapFree=4183864/4192956
[pid=2818] ppid=2816 vsize=19548 CPUtime=0
/proc/2818/stat : 2818 (bsolo3.0.16) R 2816 2818 1372 0 -1 4194304 386 0 0 0 0 0 0 0 18 0 1 0 276281241 20017152 354 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2818/statm: 4887 357 301 324 0 3956 0

[startup+0.04846 s]
/proc/loadavg: 0.91 0.99 0.99 3/64 2818
/proc/meminfo: memFree=1778056/2055920 swapFree=4183864/4192956
[pid=2818] ppid=2816 vsize=12124 CPUtime=0.04
/proc/2818/stat : 2818 (bsolo3.0.16) R 2816 2818 1372 0 -1 4194304 476 0 0 0 4 0 0 0 18 0 1 0 276281241 12414976 444 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2818/statm: 3031 444 311 324 0 2100 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 12124

[startup+0.101465 s]
/proc/loadavg: 0.91 0.99 0.99 3/64 2818
/proc/meminfo: memFree=1778056/2055920 swapFree=4183864/4192956
[pid=2818] ppid=2816 vsize=12124 CPUtime=0.09
/proc/2818/stat : 2818 (bsolo3.0.16) R 2816 2818 1372 0 -1 4194304 486 0 0 0 9 0 0 0 18 0 1 0 276281241 12414976 454 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2818/statm: 3031 454 311 324 0 2100 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12124

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

Child status: 0
Real time (s): 0.10822
CPU time (s): 0.106983
CPU user time (s): 0.104984
CPU system time (s): 0.001999
CPU usage (%): 98.8569
Max. virtual memory (cumulated for all children) (KiB): 12124

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.104984
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= 488
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 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node68 on Tue May  1 07:01:57 UTC 2007

IDJOB= 431122
IDBENCH= 48029
IDSOLVER= 163
FILE ID= node68/431122-1178002917

PBS_JOBID= 4728231

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=61-P1=67-B.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/431122-1178002917/instance-431122-1178002917.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node68/watcher-431122-1178002917 -o ROOT/results/node68/solver-431122-1178002917 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/431122-1178002917/instance-431122-1178002917.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  8f19d4e159bd0c5a74f8bd44919a7821

RANDOM SEED= 399340914

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node68.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:       1778464 kB
Buffers:         14612 kB
Cached:         189288 kB
SwapCached:       2888 kB
Active:          75444 kB
Inactive:       138832 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1778464 kB
SwapTotal:     4192956 kB
SwapFree:      4183864 kB
Dirty:            6760 kB
Writeback:           0 kB
Mapped:          16344 kB
Slab:            49296 kB
Committed_AS:  3069840 kB
PageTables:       1384 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 node68 on Tue May  1 07:01:57 UTC 2007