Trace number 1880331

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 NameAnswerCPU timeWall clock time
bsolo 3.1 pbUNSAT 3.9724 3.97355

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/
aloul/FPGA_SAT05/normalized-chnl10_11_pb.cnf.cr.opb
MD5SUMfac1b7391a53ae9861d9e311ddf65af2
Bench CategoryDEC-SMALLINT (no 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 benchmark0.006998
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables220
Total number of constraints42
Number of constraints which are clauses22
Number of constraints which are cardinality constraints (but not clauses)20
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint10
Maximum length of a constraint11
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 12
Number of bits of the biggest sum of numbers4
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: Generic Pseudo-Boolean 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-1880331-1245126859.opb
0.00/0.00	c File size is 3818 bytes.
0.00/0.00	c Highest Coefficient sum: 12
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: 220 Constr: 42 22/20/0 Lit: 440 Watch. Lit: 264
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.003 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    220       42      440   10      264     740      0      0 0.00
0.00/0.00	c Switching off lower bounding mode.
3.89/3.97	c      100    220      223     9264   41     2840     815    181   4545 0.02
3.89/3.97	c      250    220      511    25936   50     6398     897    469   2906 0.09
3.89/3.97	c      476    220      492    26514   53     6773     987    450   2277 0.21
3.89/3.97	c      816    220      605    33431   55    10217    1086    563   1754 0.47
3.89/3.97	c     1325    220      970    58573   60    18069    1195    928   1412 0.94
3.89/3.97	c     2088    220     1078    61805   57    21004    1315   1036   1084 1.93
3.89/3.97	c     3236    220     1022    58121   56    20000    1447    980    889 3.64
3.89/3.97	c Backtracks by Clause: 2835
3.89/3.97	c Backtracks by PB constraint: 255
3.89/3.97	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
3.89/3.97	c    7     3479    564     5254     1469    81639   1427    876 3.97
3.89/3.97	s UNSATISFIABLE
3.89/3.97	c Total time: 3.97 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-1880331-1245126859/watcher-1880331-1245126859 -o /tmp/evaluation-result-1880331-1245126859/solver-1880331-1245126859 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880331-1245126859.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: 0.99 0.98 0.99 2/64 32440
/proc/meminfo: memFree=1472352/2055920 swapFree=4192812/4192956
[pid=32440] ppid=32438 vsize=18520 CPUtime=0
/proc/32440/stat : 32440 (bsolo) R 32438 32440 30391 0 -1 4194304 267 0 0 0 0 0 0 0 18 0 1 0 180286315 18964480 250 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32440/statm: 4630 251 196 640 0 3986 0

[startup+0.0291861 s]
/proc/loadavg: 0.99 0.98 0.99 2/64 32440
/proc/meminfo: memFree=1472352/2055920 swapFree=4192812/4192956
[pid=32440] ppid=32438 vsize=10836 CPUtime=0.02
/proc/32440/stat : 32440 (bsolo) R 32438 32440 30391 0 -1 4194304 315 0 0 0 2 0 0 0 18 0 1 0 180286315 11096064 298 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32440/statm: 2709 298 196 640 0 2065 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 10836

[startup+0.101198 s]
/proc/loadavg: 0.99 0.98 0.99 2/64 32440
/proc/meminfo: memFree=1472352/2055920 swapFree=4192812/4192956
[pid=32440] ppid=32438 vsize=11232 CPUtime=0.1
/proc/32440/stat : 32440 (bsolo) R 32438 32440 30391 0 -1 4194304 401 0 0 0 10 0 0 0 18 0 1 0 180286315 11501568 384 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32440/statm: 2808 384 196 640 0 2164 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 11232

[startup+0.30123 s]
/proc/loadavg: 0.99 0.98 0.99 2/64 32440
/proc/meminfo: memFree=1472352/2055920 swapFree=4192812/4192956
[pid=32440] ppid=32438 vsize=11620 CPUtime=0.29
/proc/32440/stat : 32440 (bsolo) R 32438 32440 30391 0 -1 4194304 512 0 0 0 29 0 0 0 19 0 1 0 180286315 11898880 495 1992294400 134512640 137136520 4294956256 18446744073709551615 134544440 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32440/statm: 2905 495 197 640 0 2261 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11620

[startup+0.701297 s]
/proc/loadavg: 0.99 0.98 0.99 2/64 32440
/proc/meminfo: memFree=1472352/2055920 swapFree=4192812/4192956
[pid=32440] ppid=32438 vsize=12008 CPUtime=0.69
/proc/32440/stat : 32440 (bsolo) R 32438 32440 30391 0 -1 4194304 599 0 0 0 69 0 0 0 22 0 1 0 180286315 12296192 582 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32440/statm: 3002 582 197 640 0 2358 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12008

[startup+1.50143 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 32441
/proc/meminfo: memFree=1470744/2055920 swapFree=4192812/4192956
[pid=32440] ppid=32438 vsize=12264 CPUtime=1.49
/proc/32440/stat : 32440 (bsolo) R 32438 32440 30391 0 -1 4194304 674 0 0 0 149 0 0 0 25 0 1 0 180286315 12558336 657 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32440/statm: 3066 657 197 640 0 2422 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12264

[startup+3.10169 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 32441
/proc/meminfo: memFree=1470424/2055920 swapFree=4192812/4192956
[pid=32440] ppid=32438 vsize=12396 CPUtime=3.09
/proc/32440/stat : 32440 (bsolo) R 32438 32440 30391 0 -1 4194304 708 0 0 0 309 0 0 0 25 0 1 0 180286315 12693504 691 1992294400 134512640 137136520 4294956256 18446744073709551615 134544116 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32440/statm: 3099 691 197 640 0 2455 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 12396

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

[startup+3.50176 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 32441
/proc/meminfo: memFree=1470232/2055920 swapFree=4192812/4192956
[pid=32440] ppid=32438 vsize=12396 CPUtime=3.49
/proc/32440/stat : 32440 (bsolo) R 32438 32440 30391 0 -1 4194304 708 0 0 0 349 0 0 0 25 0 1 0 180286315 12693504 691 1992294400 134512640 137136520 4294956256 18446744073709551615 134544160 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32440/statm: 3099 691 197 640 0 2455 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 12396

[startup+3.90183 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 32441
/proc/meminfo: memFree=1470232/2055920 swapFree=4192812/4192956
[pid=32440] ppid=32438 vsize=12396 CPUtime=3.89
/proc/32440/stat : 32440 (bsolo) R 32438 32440 30391 0 -1 4194304 708 0 0 0 389 0 0 0 25 0 1 0 180286315 12693504 691 1992294400 134512640 137136520 4294956256 18446744073709551615 134605807 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32440/statm: 3099 691 197 640 0 2455 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 12396

Child status: 0
Real time (s): 3.97355
CPU time (s): 3.9724
CPU user time (s): 3.9664
CPU system time (s): 0.005999
CPU usage (%): 99.9709
Max. virtual memory (cumulated for all children) (KiB): 12396

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.9664
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 712
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= 8

runsolver used 0.004999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node15 at 2009-06-16 06:34:19
IDJOB=1880331
IDBENCH=1414
IDSOLVER=701
FILE ID=node15/1880331-1245126859
PBS_JOBID= 9363653
Free space on /tmp= 66304 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/FPGA_SAT05/normalized-chnl10_11_pb.cnf.cr.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880331-1245126859/watcher-1880331-1245126859 -o /tmp/evaluation-result-1880331-1245126859/solver-1880331-1245126859 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880331-1245126859.opb

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

MD5SUM BENCH= fac1b7391a53ae9861d9e311ddf65af2
RANDOM SEED=1536351810

node15.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		: 3000.261
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		: 3000.261
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:       1472832 kB
Buffers:         38724 kB
Cached:         463388 kB
SwapCached:          0 kB
Active:          72016 kB
Inactive:       443464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1472832 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3940 kB
Writeback:           0 kB
Mapped:          23248 kB
Slab:            53532 kB
Committed_AS:   165776 kB
PageTables:       1460 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= 66300 MiB
End job on node15 at 2009-06-16 06:34:23