Trace number 1880109

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 8.97863 8.98229

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110967729.opb
MD5SUMcc8a821eb6092a77df7c2a7d8a438de1
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 benchmark0.160974
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 1318
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-1880109-1245115381.opb
0.00/0.00	c File size is 9919 bytes.
0.00/0.00	c Highest Coefficient sum: 1318
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: 901
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      880    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
8.89/8.98	c      100    169      299    20516   68    13928    2820    200   1851 0.05
8.89/8.98	c      253    169      603    48956   81    29793    3103    504   1367 0.18
8.89/8.98	c      483    169     1055    91892   87    52648    3414    956    925 0.52
8.89/8.98	c      822    169     1705   154330   90    80898    3756   1606    681 1.21
8.89/8.98	c     1332    169     2676   247224   92   118970    4132   2577    468 2.84
8.89/8.98	c     2097    169     4078   380701   93   166229    4546   3979    305 6.87
8.89/8.98	c Backtracks by Clause: 1912
8.89/8.98	c Backtracks by PB constraint: 244
8.89/8.98	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
8.89/8.98	c    6     2397    401     3456     4630   430569   4531    267 8.97
8.89/8.98	s UNSATISFIABLE
8.89/8.98	c Total time: 8.975 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-1880109-1245115381/watcher-1880109-1245115381 -o /tmp/evaluation-result-1880109-1245115381/solver-1880109-1245115381 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880109-1245115381.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: 1.05 1.01 1.03 3/65 2114
/proc/meminfo: memFree=1088480/2055920 swapFree=4191900/4192956
[pid=2114] ppid=2112 vsize=10708 CPUtime=0
/proc/2114/stat : 2114 (bsolo) R 2112 2114 1864 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179137490 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2114/statm: 2677 239 188 640 0 2033 0

[startup+0.049078 s]
/proc/loadavg: 1.05 1.01 1.03 3/65 2114
/proc/meminfo: memFree=1088480/2055920 swapFree=4191900/4192956
[pid=2114] ppid=2112 vsize=11228 CPUtime=0.04
/proc/2114/stat : 2114 (bsolo) R 2112 2114 1864 0 -1 4194304 393 0 0 0 4 0 0 0 18 0 1 0 179137490 11497472 374 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2114/statm: 2807 374 196 640 0 2163 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 11228

[startup+0.101084 s]
/proc/loadavg: 1.05 1.01 1.03 3/65 2114
/proc/meminfo: memFree=1088480/2055920 swapFree=4191900/4192956
[pid=2114] ppid=2112 vsize=11488 CPUtime=0.09
/proc/2114/stat : 2114 (bsolo) R 2112 2114 1864 0 -1 4194304 488 0 0 0 9 0 0 0 18 0 1 0 179137490 11763712 469 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2114/statm: 2872 469 196 640 0 2228 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11488

[startup+0.301105 s]
/proc/loadavg: 1.05 1.01 1.03 3/65 2114
/proc/meminfo: memFree=1088480/2055920 swapFree=4191900/4192956
[pid=2114] ppid=2112 vsize=12388 CPUtime=0.29
/proc/2114/stat : 2114 (bsolo) R 2112 2114 1864 0 -1 4194304 710 0 0 0 29 0 0 0 19 0 1 0 179137490 12685312 691 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2114/statm: 3097 691 197 640 0 2453 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12388

[startup+0.701152 s]
/proc/loadavg: 1.05 1.01 1.03 3/65 2114
/proc/meminfo: memFree=1088480/2055920 swapFree=4191900/4192956
[pid=2114] ppid=2112 vsize=13560 CPUtime=0.69
/proc/2114/stat : 2114 (bsolo) R 2112 2114 1864 0 -1 4194304 988 0 0 0 69 0 0 0 22 0 1 0 179137490 13885440 969 1992294400 134512640 137136520 4294956256 18446744073709551615 134574232 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2114/statm: 3390 969 197 640 0 2746 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13560

[startup+1.50124 s]
/proc/loadavg: 1.05 1.01 1.03 2/66 2115
/proc/meminfo: memFree=1084696/2055920 swapFree=4191900/4192956
[pid=2114] ppid=2112 vsize=15260 CPUtime=1.49
/proc/2114/stat : 2114 (bsolo) R 2112 2114 1864 0 -1 4194304 1416 0 0 0 149 0 0 0 25 0 1 0 179137490 15626240 1397 1992294400 134512640 137136520 4294956256 18446744073709551615 134543819 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2114/statm: 3815 1397 197 640 0 3171 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 15260

[startup+3.10142 s]
/proc/loadavg: 1.05 1.01 1.03 2/66 2115
/proc/meminfo: memFree=1082712/2055920 swapFree=4191900/4192956
[pid=2114] ppid=2112 vsize=17080 CPUtime=3.09
/proc/2114/stat : 2114 (bsolo) R 2112 2114 1864 0 -1 4194304 1874 0 0 0 308 1 0 0 25 0 1 0 179137490 17489920 1855 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2114/statm: 4270 1855 197 640 0 3626 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 17080

[startup+6.30179 s]
/proc/loadavg: 1.04 1.01 1.03 2/66 2115
/proc/meminfo: memFree=1079896/2055920 swapFree=4191900/4192956
[pid=2114] ppid=2112 vsize=19424 CPUtime=6.29
/proc/2114/stat : 2114 (bsolo) R 2112 2114 1864 0 -1 4194304 2454 0 0 0 626 3 0 0 25 0 1 0 179137490 19890176 2435 1992294400 134512640 137136520 4294956256 18446744073709551615 134544387 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2114/statm: 4856 2435 197 640 0 4212 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 19424

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

[startup+7.90197 s]
/proc/loadavg: 1.04 1.01 1.03 2/66 2115
/proc/meminfo: memFree=1078624/2055920 swapFree=4191900/4192956
[pid=2114] ppid=2112 vsize=20212 CPUtime=7.89
/proc/2114/stat : 2114 (bsolo) R 2112 2114 1864 0 -1 4194304 2664 0 0 0 786 3 0 0 25 0 1 0 179137490 20697088 2645 1992294400 134512640 137136520 4294956256 18446744073709551615 134544140 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2114/statm: 5053 2645 197 640 0 4409 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 20212

[startup+8.70106 s]
/proc/loadavg: 1.04 1.01 1.02 2/66 2115
/proc/meminfo: memFree=1078048/2055920 swapFree=4191900/4192956
[pid=2114] ppid=2112 vsize=20732 CPUtime=8.69
/proc/2114/stat : 2114 (bsolo) R 2112 2114 1864 0 -1 4194304 2772 0 0 0 866 3 0 0 25 0 1 0 179137490 21229568 2753 1992294400 134512640 137136520 4294956256 18446744073709551615 134544425 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2114/statm: 5183 2753 197 640 0 4539 0
Current children cumulated CPU time (s) 8.69
Current children cumulated vsize (KiB) 20732

[startup+8.90108 s]
/proc/loadavg: 1.04 1.01 1.02 2/66 2115
/proc/meminfo: memFree=1078048/2055920 swapFree=4191900/4192956
[pid=2114] ppid=2112 vsize=20864 CPUtime=8.89
/proc/2114/stat : 2114 (bsolo) R 2112 2114 1864 0 -1 4194304 2817 0 0 0 886 3 0 0 25 0 1 0 179137490 21364736 2798 1992294400 134512640 137136520 4294956256 18446744073709551615 134543927 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2114/statm: 5216 2798 197 640 0 4572 0
Current children cumulated CPU time (s) 8.89
Current children cumulated vsize (KiB) 20864

Child status: 0
Real time (s): 8.98229
CPU time (s): 8.97863
CPU user time (s): 8.94364
CPU system time (s): 0.034994
CPU usage (%): 99.9593
Max. virtual memory (cumulated for all children) (KiB): 20864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.94364
system time used= 0.034994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2822
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= 12

runsolver used 0.015997 second user time and 0.025996 second system time

The end

Launcher Data 

Begin job on node32 at 2009-06-16 03:23:01
IDJOB=1880109
IDBENCH=1178
IDSOLVER=701
FILE ID=node32/1880109-1245115381
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-t2001.13queen13.1110967729.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880109-1245115381/watcher-1880109-1245115381 -o /tmp/evaluation-result-1880109-1245115381/solver-1880109-1245115381 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880109-1245115381.opb

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

MD5SUM BENCH= cc8a821eb6092a77df7c2a7d8a438de1
RANDOM SEED=2076241255

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:       1088896 kB
Buffers:         78012 kB
Cached:         791516 kB
SwapCached:        260 kB
Active:          70972 kB
Inactive:       812888 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1088896 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4112 kB
Writeback:           0 kB
Mapped:          23776 kB
Slab:            68860 kB
Committed_AS:   137096 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 03:23:10