Trace number 1880151

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 3.44248 3.44218

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111220767.opb
MD5SUM38b43a11d13f0709a9bef9791640fdad
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 benchmark0.435932
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
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 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1248
Number of bits of the biggest sum of numbers11
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-1880151-1245115723.opb
0.00/0.00	c File size is 9908 bytes.
0.00/0.00	c Highest Coefficient sum: 1248
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: 169 Constr: 101 30/70/1 Lit: 1205 Watch. Lit: 902
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.005 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    169       99     1179   11      881    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
3.39/3.44	c      102    169      303    20257   66    12958    2820    204   1700 0.06
3.39/3.44	c      254    169      579    44894   77    25896    3103    480   1316 0.19
3.39/3.44	c      480    169      967    77364   80    43895    3414    868    935 0.51
3.39/3.44	c      819    169     1525   124883   81    66199    3756   1426    720 1.14
3.39/3.44	c     1327    132     2336   190599   81    96042    4132   2237    524 2.53
3.39/3.44	c Backtracks by Clause: 961
3.39/3.44	c Backtracks by PB constraint: 175
3.39/3.44	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
3.39/3.44	c    5     1614    310     2752     2810   224957   2711    469 3.44
3.39/3.44	s UNSATISFIABLE
3.39/3.44	c Total time: 3.438 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-1880151-1245115723/watcher-1880151-1245115723 -o /tmp/evaluation-result-1880151-1245115723/solver-1880151-1245115723 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880151-1245115723.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 0.99 1.00 3/65 2910
/proc/meminfo: memFree=1084904/2055920 swapFree=4191900/4192956
[pid=2910] ppid=2908 vsize=10708 CPUtime=0
/proc/2910/stat : 2910 (bsolo) R 2908 2910 1864 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179171778 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2910/statm: 2677 239 188 640 0 2033 0

[startup+0.021382 s]
/proc/loadavg: 0.99 0.99 1.00 3/65 2910
/proc/meminfo: memFree=1084904/2055920 swapFree=4191900/4192956
[pid=2910] ppid=2908 vsize=10840 CPUtime=0.01
/proc/2910/stat : 2910 (bsolo) R 2908 2910 1864 0 -1 4194304 319 0 0 0 1 0 0 0 18 0 1 0 179171778 11100160 300 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2910/statm: 2710 300 196 640 0 2066 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 10840

[startup+0.101391 s]
/proc/loadavg: 0.99 0.99 1.00 3/65 2910
/proc/meminfo: memFree=1084904/2055920 swapFree=4191900/4192956
[pid=2910] ppid=2908 vsize=11364 CPUtime=0.09
/proc/2910/stat : 2910 (bsolo) R 2908 2910 1864 0 -1 4194304 457 0 0 0 9 0 0 0 18 0 1 0 179171778 11636736 438 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2910/statm: 2841 438 197 640 0 2197 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11364

[startup+0.301413 s]
/proc/loadavg: 0.99 0.99 1.00 3/65 2910
/proc/meminfo: memFree=1084904/2055920 swapFree=4191900/4192956
[pid=2910] ppid=2908 vsize=12140 CPUtime=0.29
/proc/2910/stat : 2910 (bsolo) R 2908 2910 1864 0 -1 4194304 652 0 0 0 29 0 0 0 20 0 1 0 179171778 12431360 633 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2910/statm: 3035 633 197 640 0 2391 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12140

[startup+0.701458 s]
/proc/loadavg: 0.99 0.99 1.00 3/65 2910
/proc/meminfo: memFree=1084904/2055920 swapFree=4191900/4192956
[pid=2910] ppid=2908 vsize=13052 CPUtime=0.69
/proc/2910/stat : 2910 (bsolo) R 2908 2910 1864 0 -1 4194304 869 0 0 0 69 0 0 0 23 0 1 0 179171778 13365248 850 1992294400 134512640 137136520 4294956256 18446744073709551615 136518905 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2910/statm: 3263 850 197 640 0 2619 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13052

[startup+1.50155 s]
/proc/loadavg: 0.99 0.99 1.00 2/66 2911
/proc/meminfo: memFree=1081632/2055920 swapFree=4191900/4192956
[pid=2910] ppid=2908 vsize=14348 CPUtime=1.49
/proc/2910/stat : 2910 (bsolo) R 2908 2910 1864 0 -1 4194304 1190 0 0 0 149 0 0 0 25 0 1 0 179171778 14692352 1171 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2910/statm: 3587 1171 197 640 0 2943 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14348

[startup+3.10173 s]
/proc/loadavg: 0.99 0.99 1.00 2/66 2911
/proc/meminfo: memFree=1080096/2055920 swapFree=4191900/4192956
[pid=2910] ppid=2908 vsize=16044 CPUtime=3.09
/proc/2910/stat : 2910 (bsolo) R 2908 2910 1864 0 -1 4194304 1600 0 0 0 309 0 0 0 25 0 1 0 179171778 16429056 1581 1992294400 134512640 137136520 4294956256 18446744073709551615 134544437 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2910/statm: 4011 1581 197 640 0 3367 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16044

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

[startup+3.30575 s]
/proc/loadavg: 0.99 0.99 1.00 2/66 2911
/proc/meminfo: memFree=1079072/2055920 swapFree=4191900/4192956
[pid=2910] ppid=2908 vsize=16176 CPUtime=3.29
/proc/2910/stat : 2910 (bsolo) R 2908 2910 1864 0 -1 4194304 1649 0 0 0 329 0 0 0 25 0 1 0 179171778 16564224 1630 1992294400 134512640 137136520 4294956256 18446744073709551615 134544125 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2910/statm: 4044 1630 197 640 0 3400 0
Current children cumulated CPU time (s) 3.29
Current children cumulated vsize (KiB) 16176

[startup+3.40176 s]
/proc/loadavg: 0.99 0.99 1.00 2/66 2911
/proc/meminfo: memFree=1079072/2055920 swapFree=4191900/4192956
[pid=2910] ppid=2908 vsize=16304 CPUtime=3.39
/proc/2910/stat : 2910 (bsolo) R 2908 2910 1864 0 -1 4194304 1673 0 0 0 339 0 0 0 25 0 1 0 179171778 16695296 1654 1992294400 134512640 137136520 4294956256 18446744073709551615 134544148 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2910/statm: 4076 1654 197 640 0 3432 0
Current children cumulated CPU time (s) 3.39
Current children cumulated vsize (KiB) 16304

Child status: 0
Real time (s): 3.44218
CPU time (s): 3.44248
CPU user time (s): 3.43248
CPU system time (s): 0.009998
CPU usage (%): 100.009
Max. virtual memory (cumulated for all children) (KiB): 16304

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.43248
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1681
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= 3

runsolver used 0.002999 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node32 at 2009-06-16 03:28:43
IDJOB=1880151
IDBENCH=1220
IDSOLVER=701
FILE ID=node32/1880151-1245115723
PBS_JOBID= 9363635
Free space on /tmp= 66344 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111220767.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880151-1245115723/watcher-1880151-1245115723 -o /tmp/evaluation-result-1880151-1245115723/solver-1880151-1245115723 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880151-1245115723.opb

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

MD5SUM BENCH= 38b43a11d13f0709a9bef9791640fdad
RANDOM SEED=1146936809

node32.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		: 3000.234
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		: 3000.234
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:       1085320 kB
Buffers:         78600 kB
Cached:         794464 kB
SwapCached:        260 kB
Active:          86304 kB
Inactive:       801048 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1085320 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4184 kB
Writeback:           0 kB
Mapped:          23776 kB
Slab:            68932 kB
Committed_AS:   143660 kB
PageTables:       1492 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66340 MiB
End job on node32 at 2009-06-16 03:28:47