Trace number 1880147

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 8.74567 8.74682

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111218955.opb
MD5SUM4fb633c677215fa561629219b731606a
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 benchmark0.376942
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 1202
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-1880147-1245115700.opb
0.00/0.00	c File size is 9900 bytes.
0.00/0.00	c Highest Coefficient sum: 1202
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: 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.
8.70/8.74	c      100    169      284    18468   65    10382    2820    185   1923 0.05
8.70/8.74	c      253    169      563    43876   77    24041    3103    464   1360 0.19
8.70/8.74	c      478    169      961    79182   82    41114    3414    862    989 0.48
8.70/8.74	c      817    169     1569   132670   84    63863    3756   1470    706 1.16
8.70/8.74	c     1326    169     2482   218474   88    99277    4132   2383    480 2.76
8.70/8.74	c     2091    169     3826   348309   91   141088    4546   3727    310 6.74
8.70/8.74	c Backtracks by Clause: 1653
8.70/8.74	c Backtracks by PB constraint: 215
8.70/8.74	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
8.70/8.74	c    6     2356    395     3363     4290   390036   4191    269 8.74
8.70/8.74	s UNSATISFIABLE
8.70/8.74	c Total time: 8.741 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-1880147-1245115700/watcher-1880147-1245115700 -o /tmp/evaluation-result-1880147-1245115700/solver-1880147-1245115700 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880147-1245115700.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 2847
/proc/meminfo: memFree=1084976/2055920 swapFree=4191900/4192956
[pid=2847] ppid=2845 vsize=10708 CPUtime=0
/proc/2847/stat : 2847 (bsolo) R 2845 2847 1864 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179169474 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2847/statm: 2677 239 188 640 0 2033 0

[startup+0.0803941 s]
/proc/loadavg: 0.99 0.99 1.00 3/65 2847
/proc/meminfo: memFree=1084976/2055920 swapFree=4191900/4192956
[pid=2847] ppid=2845 vsize=11360 CPUtime=0.07
/proc/2847/stat : 2847 (bsolo) R 2845 2847 1864 0 -1 4194304 428 0 0 0 7 0 0 0 18 0 1 0 179169474 11632640 409 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2847/statm: 2840 409 197 640 0 2196 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 11360

[startup+0.101395 s]
/proc/loadavg: 0.99 0.99 1.00 3/65 2847
/proc/meminfo: memFree=1084976/2055920 swapFree=4191900/4192956
[pid=2847] ppid=2845 vsize=11360 CPUtime=0.09
/proc/2847/stat : 2847 (bsolo) R 2845 2847 1864 0 -1 4194304 450 0 0 0 9 0 0 0 18 0 1 0 179169474 11632640 431 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2847/statm: 2840 431 197 640 0 2196 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11360

[startup+0.301418 s]
/proc/loadavg: 0.99 0.99 1.00 3/65 2847
/proc/meminfo: memFree=1084976/2055920 swapFree=4191900/4192956
[pid=2847] ppid=2845 vsize=12136 CPUtime=0.29
/proc/2847/stat : 2847 (bsolo) R 2845 2847 1864 0 -1 4194304 635 0 0 0 29 0 0 0 19 0 1 0 179169474 12427264 616 1992294400 134512640 137136520 4294956256 18446744073709551615 134544122 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2847/statm: 3034 616 197 640 0 2390 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12136

[startup+0.701463 s]
/proc/loadavg: 0.99 0.99 1.00 3/65 2847
/proc/meminfo: memFree=1084976/2055920 swapFree=4191900/4192956
[pid=2847] ppid=2845 vsize=13176 CPUtime=0.69
/proc/2847/stat : 2847 (bsolo) R 2845 2847 1864 0 -1 4194304 895 0 0 0 69 0 0 0 22 0 1 0 179169474 13492224 876 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2847/statm: 3294 876 197 640 0 2650 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13176

[startup+1.50255 s]
/proc/loadavg: 0.99 0.99 1.00 2/66 2848
/proc/meminfo: memFree=1081704/2055920 swapFree=4191900/4192956
[pid=2847] ppid=2845 vsize=14480 CPUtime=1.49
/proc/2847/stat : 2847 (bsolo) R 2845 2847 1864 0 -1 4194304 1222 0 0 0 148 1 0 0 25 0 1 0 179169474 14827520 1203 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2847/statm: 3620 1203 197 640 0 2976 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14480

[startup+3.10174 s]
/proc/loadavg: 0.99 0.99 1.00 2/66 2848
/proc/meminfo: memFree=1079912/2055920 swapFree=4191900/4192956
[pid=2847] ppid=2845 vsize=16176 CPUtime=3.09
/proc/2847/stat : 2847 (bsolo) R 2845 2847 1864 0 -1 4194304 1661 0 0 0 308 1 0 0 25 0 1 0 179169474 16564224 1642 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2847/statm: 4044 1642 197 640 0 3400 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16176

[startup+6.3011 s]
/proc/loadavg: 0.99 0.99 1.00 2/66 2848
/proc/meminfo: memFree=1077288/2055920 swapFree=4191900/4192956
[pid=2847] ppid=2845 vsize=18516 CPUtime=6.29
/proc/2847/stat : 2847 (bsolo) R 2845 2847 1864 0 -1 4194304 2221 0 0 0 627 2 0 0 25 0 1 0 179169474 18960384 2202 1992294400 134512640 137136520 4294956256 18446744073709551615 134544140 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2847/statm: 4629 2202 197 640 0 3985 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18516

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

[startup+7.90128 s]
/proc/loadavg: 0.99 0.99 1.00 2/66 2848
/proc/meminfo: memFree=1076136/2055920 swapFree=4191900/4192956
[pid=2847] ppid=2845 vsize=19300 CPUtime=7.88
/proc/2847/stat : 2847 (bsolo) R 2845 2847 1864 0 -1 4194304 2415 0 0 0 786 2 0 0 25 0 1 0 179169474 19763200 2396 1992294400 134512640 137136520 4294956256 18446744073709551615 136498324 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2847/statm: 4825 2396 197 640 0 4181 0
Current children cumulated CPU time (s) 7.88
Current children cumulated vsize (KiB) 19300

[startup+8.30132 s]
/proc/loadavg: 0.99 0.99 1.00 2/66 2848
/proc/meminfo: memFree=1076136/2055920 swapFree=4191900/4192956
[pid=2847] ppid=2845 vsize=19432 CPUtime=8.29
/proc/2847/stat : 2847 (bsolo) R 2845 2847 1864 0 -1 4194304 2471 0 0 0 826 3 0 0 25 0 1 0 179169474 19898368 2452 1992294400 134512640 137136520 4294956256 18446744073709551615 134543942 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2847/statm: 4858 2452 197 640 0 4214 0
Current children cumulated CPU time (s) 8.29
Current children cumulated vsize (KiB) 19432

[startup+8.70137 s]
/proc/loadavg: 0.99 0.99 1.00 2/66 2848
/proc/meminfo: memFree=1075560/2055920 swapFree=4191900/4192956
[pid=2847] ppid=2845 vsize=19560 CPUtime=8.7
/proc/2847/stat : 2847 (bsolo) R 2845 2847 1864 0 -1 4194304 2507 0 0 0 867 3 0 0 25 0 1 0 179169474 20029440 2488 1992294400 134512640 137136520 4294956256 18446744073709551615 134544160 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2847/statm: 4890 2488 197 640 0 4246 0
Current children cumulated CPU time (s) 8.7
Current children cumulated vsize (KiB) 19560

Child status: 0
Real time (s): 8.74682
CPU time (s): 8.74567
CPU user time (s): 8.71267
CPU system time (s): 0.032994
CPU usage (%): 99.9868
Max. virtual memory (cumulated for all children) (KiB): 19560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.71268
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2510
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= 7

runsolver used 0.012998 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node32 at 2009-06-16 03:28:20
IDJOB=1880147
IDBENCH=1216
IDSOLVER=701
FILE ID=node32/1880147-1245115700
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-t2001.13queen13.1111218955.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880147-1245115700/watcher-1880147-1245115700 -o /tmp/evaluation-result-1880147-1245115700/solver-1880147-1245115700 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880147-1245115700.opb

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

MD5SUM BENCH= 4fb633c677215fa561629219b731606a
RANDOM SEED=1772334879

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:       1085456 kB
Buffers:         78576 kB
Cached:         794352 kB
SwapCached:        260 kB
Active:          86224 kB
Inactive:       801056 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1085456 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4156 kB
Writeback:           0 kB
Mapped:          23776 kB
Slab:            68932 kB
Committed_AS:   142596 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 03:28:29