Trace number 1880172

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 1.51777 1.51949

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110968094.opb
MD5SUM940d71bbc0c42e33ba6204f0b827ce80
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 benchmark0.398939
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 1242
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-1880172-1245115843.opb
0.00/0.00	c File size is 9909 bytes.
0.00/0.00	c Highest Coefficient sum: 1242
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 169 Constr: 101 30/70/1 Lit: 1205 Watch. Lit: 899
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      879    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
1.49/1.51	c      101    169      300    19764   65    12883    2820    201   1980 0.05
1.49/1.51	c      255    169      600    47044   78    28315    3103    501   1465 0.17
1.49/1.51	c      484    169     1040    87028   83    49629    3414    941   1002 0.48
1.49/1.51	c      822    132     1692   144583   85    78373    3756   1593    704 1.17
1.49/1.51	c Backtracks by Clause: 795
1.49/1.51	c Backtracks by PB constraint: 110
1.49/1.51	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
1.49/1.51	c    4      963    190     1479     1963   166978   1864    635 1.51
1.49/1.51	s UNSATISFIABLE
1.49/1.51	c Total time: 1.515 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-1880172-1245115843/watcher-1880172-1245115843 -o /tmp/evaluation-result-1880172-1245115843/solver-1880172-1245115843 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880172-1245115843.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: 0.98 0.98 1.03 3/64 31219
/proc/meminfo: memFree=1501152/2055920 swapFree=4192812/4192956
[pid=31219] ppid=31217 vsize=10708 CPUtime=0
/proc/31219/stat : 31219 (bsolo) R 31217 31219 30391 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179184677 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31219/statm: 2677 239 188 640 0 2033 0

[startup+0.049064 s]
/proc/loadavg: 0.98 0.98 1.03 3/64 31219
/proc/meminfo: memFree=1501152/2055920 swapFree=4192812/4192956
[pid=31219] ppid=31217 vsize=11092 CPUtime=0.04
/proc/31219/stat : 31219 (bsolo) R 31217 31219 30391 0 -1 4194304 391 0 0 0 4 0 0 0 18 0 1 0 179184677 11358208 372 1992294400 134512640 137136520 4294956256 18446744073709551615 134544411 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31219/statm: 2773 372 197 640 0 2129 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 11092

[startup+0.101072 s]
/proc/loadavg: 0.98 0.98 1.03 3/64 31219
/proc/meminfo: memFree=1501152/2055920 swapFree=4192812/4192956
[pid=31219] ppid=31217 vsize=11480 CPUtime=0.09
/proc/31219/stat : 31219 (bsolo) R 31217 31219 30391 0 -1 4194304 481 0 0 0 9 0 0 0 18 0 1 0 179184677 11755520 462 1992294400 134512640 137136520 4294956256 18446744073709551615 134605804 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31219/statm: 2870 462 197 640 0 2226 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11480

[startup+0.301105 s]
/proc/loadavg: 0.98 0.98 1.03 3/64 31219
/proc/meminfo: memFree=1501152/2055920 swapFree=4192812/4192956
[pid=31219] ppid=31217 vsize=12396 CPUtime=0.29
/proc/31219/stat : 31219 (bsolo) R 31217 31219 30391 0 -1 4194304 713 0 0 0 29 0 0 0 19 0 1 0 179184677 12693504 694 1992294400 134512640 137136520 4294956256 18446744073709551615 134544160 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31219/statm: 3099 694 197 640 0 2455 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12396

[startup+0.701172 s]
/proc/loadavg: 0.98 0.98 1.03 3/64 31219
/proc/meminfo: memFree=1501152/2055920 swapFree=4192812/4192956
[pid=31219] ppid=31217 vsize=13564 CPUtime=0.69
/proc/31219/stat : 31219 (bsolo) R 31217 31219 30391 0 -1 4194304 988 0 0 0 69 0 0 0 22 0 1 0 179184677 13889536 969 1992294400 134512640 137136520 4294956256 18446744073709551615 134544393 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31219/statm: 3391 969 197 640 0 2747 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13564

[startup+1.5013 s]
/proc/loadavg: 0.98 0.98 1.03 2/65 31220
/proc/meminfo: memFree=1497432/2055920 swapFree=4192812/4192956
[pid=31219] ppid=31217 vsize=14992 CPUtime=1.49
/proc/31219/stat : 31219 (bsolo) R 31217 31219 30391 0 -1 4194304 1343 0 0 0 149 0 0 0 25 0 1 0 179184677 15351808 1324 1992294400 134512640 137136520 4294956256 18446744073709551615 134544449 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31219/statm: 3748 1324 197 640 0 3104 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14992

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

Child status: 0
Real time (s): 1.51949
CPU time (s): 1.51777
CPU user time (s): 1.51077
CPU system time (s): 0.006998
CPU usage (%): 99.8867
Max. virtual memory (cumulated for all children) (KiB): 14992

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.51077
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= 1356
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= 2

runsolver used 0.002999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node15 at 2009-06-16 03:30:43
IDJOB=1880172
IDBENCH=1241
IDSOLVER=701
FILE ID=node15/1880172-1245115843
PBS_JOBID= 9363653
Free space on /tmp= 66304 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110968094.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880172-1245115843/watcher-1880172-1245115843 -o /tmp/evaluation-result-1880172-1245115843/solver-1880172-1245115843 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880172-1245115843.opb

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

MD5SUM BENCH= 940d71bbc0c42e33ba6204f0b827ce80
RANDOM SEED=2068304594

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:       1501632 kB
Buffers:         31928 kB
Cached:         441488 kB
SwapCached:          0 kB
Active:          65236 kB
Inactive:       421552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1501632 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3960 kB
Writeback:           0 kB
Mapped:          23192 kB
Slab:            53492 kB
Committed_AS:   160204 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 03:30:44