Trace number 1877603

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 3.1UNSAT 0.103983 0.104456

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/
primes-dimacs-cnf/normalized-bf0432-007.opb
MD5SUM093787cffe9173c370b11fb5e77a5812
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.094984
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables2080
Total number of constraints4708
Number of constraints which are clauses4708
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint6
Number of terms in the objective function 2080
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 2080
Number of bits of the sum of numbers in the objective function 12
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 2080
Number of bits of the biggest sum of numbers12
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

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: Cardinality Constraint 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-1877603-1245151227.opb
0.00/0.00	c File size is 150148 bytes.
0.00/0.02	c Highest Coefficient sum: 2080
0.00/0.02	c Parsing was ok!!
0.00/0.02	c Total parsing time: 0.019 s
0.00/0.02	c Var: 2080 Constr: 4708 4708/0/0 Lit: 11654 Watch. Lit: 9410
0.00/0.02	c Obj. Vars: 2080 (100 % of total variables)
0.00/0.05	c Pre-processing Time: 0.056 s
0.00/0.05	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.05	c        0    606     2096     5642    2     4192     698      0      0 0.06
0.00/0.05	c Switching off lower bounding mode.
0.09/0.10	c      100    606     2284     6844    2     4568     768    188   1408 0.07
0.09/0.10	c      250    500     2544     8555    3     5084     845    448   2688 0.09
0.09/0.10	c Backtracks by Clause: 299
0.09/0.10	c Backtracks by PB constraint: 2
0.09/0.10	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.10	c    2      301    134      944     2598     8733    502   2980 0.10
0.09/0.10	s UNSATISFIABLE
0.09/0.10	c Total time: 0.101 s

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1877603-1245151227/watcher-1877603-1245151227 -o /tmp/evaluation-result-1877603-1245151227/solver-1877603-1245151227 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877603-1245151227.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 10270
/proc/meminfo: memFree=1905296/2055920 swapFree=4192812/4192956
[pid=10270] ppid=10268 vsize=10888 CPUtime=0
/proc/10270/stat : 10270 (bsolo) R 10268 10270 10227 0 -1 4194304 268 0 0 0 0 0 0 0 18 0 1 0 182722441 11149312 252 1992294400 134512640 137136520 4294956256 18446744073709551615 136575102 0 0 4096 16384 0 0 0 17 1 0 0
/proc/10270/statm: 2722 253 174 640 0 2041 0

[startup+0.095034 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 10270
/proc/meminfo: memFree=1905296/2055920 swapFree=4192812/4192956
[pid=10270] ppid=10268 vsize=11680 CPUtime=0.08
/proc/10270/stat : 10270 (bsolo) R 10268 10270 10227 0 -1 4194304 560 0 0 0 8 0 0 0 18 0 1 0 182722441 11960320 507 1992294400 134512640 137136520 4294956256 18446744073709551615 136502025 0 0 4096 16384 0 0 0 17 1 0 0
/proc/10270/statm: 2920 507 197 640 0 2276 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 11680

[startup+0.101034 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 10270
/proc/meminfo: memFree=1905296/2055920 swapFree=4192812/4192956
[pid=10270] ppid=10268 vsize=11680 CPUtime=0.09
/proc/10270/stat : 10270 (bsolo) R 10268 10270 10227 0 -1 4194304 560 0 0 0 9 0 0 0 18 0 1 0 182722441 11960320 507 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/10270/statm: 2920 507 197 640 0 2276 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11680

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

Child status: 0
Real time (s): 0.104456
CPU time (s): 0.103983
CPU user time (s): 0.096985
CPU system time (s): 0.006998
CPU usage (%): 99.5471
Max. virtual memory (cumulated for all children) (KiB): 11680

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.096985
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= 561
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 0.005999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node26 at 2009-06-16 13:20:27
IDJOB=1877603
IDBENCH=2073
IDSOLVER=699
FILE ID=node26/1877603-1245151227
PBS_JOBID= 9363793
Free space on /tmp= 66156 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-bf0432-007.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877603-1245151227/watcher-1877603-1245151227 -o /tmp/evaluation-result-1877603-1245151227/solver-1877603-1245151227 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877603-1245151227.opb

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

MD5SUM BENCH= 093787cffe9173c370b11fb5e77a5812
RANDOM SEED=1518779844

node26.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		: 3000.263
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	: 5931.00
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		: 3000.263
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:       1905776 kB
Buffers:         17912 kB
Cached:          69264 kB
SwapCached:          0 kB
Active:          60944 kB
Inactive:        40068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1905776 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4328 kB
Writeback:           0 kB
Mapped:          23612 kB
Slab:            35200 kB
Committed_AS:   154704 kB
PageTables:       1372 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-1877603-1245151227.opb

Free space on /tmp at the end= 66152 MiB
End job on node26 at 2009-06-16 13:20:28