Trace number 1880185

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 3.51447 3.51628

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111227012.opb
MD5SUMf1ef73d71b7207a4f4673a4d36adcee2
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 benchmark0.704892
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 1220
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-1880185-1245115898.opb
0.00/0.00	c File size is 9908 bytes.
0.00/0.00	c Highest Coefficient sum: 1220
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: 900
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.
3.49/3.51	c      100    169      295    20364   69    11893    2820    196   1724 0.06
3.49/3.51	c      251    169      590    48043   81    27137    3103    491   1274 0.20
3.49/3.51	c      479    169     1032    90285   87    48496    3414    933    844 0.57
3.49/3.51	c      818    169     1630   145152   89    70402    3756   1531    619 1.32
3.49/3.51	c     1333    169     2505   224967   89   100144    4132   2406    434 3.07
3.49/3.51	c Backtracks by Clause: 1021
3.49/3.51	c Backtracks by PB constraint: 164
3.49/3.51	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
3.49/3.51	c    5     1441    278     2135     2682   239962   2583    410 3.51
3.49/3.51	s UNSATISFIABLE
3.49/3.51	c Total time: 3.512 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-1880185-1245115898/watcher-1880185-1245115898 -o /tmp/evaluation-result-1880185-1245115898/solver-1880185-1245115898 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880185-1245115898.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: 1.08 1.02 1.08 3/64 1686
/proc/meminfo: memFree=1407656/2055920 swapFree=4191900/4192956
[pid=1686] ppid=1684 vsize=10708 CPUtime=0
/proc/1686/stat : 1686 (bsolo) R 1684 1686 1150 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179186466 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1686/statm: 2677 239 188 640 0 2033 0

[startup+0.076683 s]
/proc/loadavg: 1.08 1.02 1.08 3/64 1686
/proc/meminfo: memFree=1407656/2055920 swapFree=4191900/4192956
[pid=1686] ppid=1684 vsize=11356 CPUtime=0.07
/proc/1686/stat : 1686 (bsolo) R 1684 1686 1150 0 -1 4194304 427 0 0 0 7 0 0 0 18 0 1 0 179186466 11628544 408 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1686/statm: 2839 408 197 640 0 2195 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 11356

[startup+0.102687 s]
/proc/loadavg: 1.08 1.02 1.08 3/64 1686
/proc/meminfo: memFree=1407656/2055920 swapFree=4191900/4192956
[pid=1686] ppid=1684 vsize=11488 CPUtime=0.1
/proc/1686/stat : 1686 (bsolo) R 1684 1686 1150 0 -1 4194304 463 0 0 0 10 0 0 0 18 0 1 0 179186466 11763712 444 1992294400 134512640 137136520 4294956256 18446744073709551615 136575102 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1686/statm: 2872 444 197 640 0 2228 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 11488

[startup+0.302723 s]
/proc/loadavg: 1.08 1.02 1.08 3/64 1686
/proc/meminfo: memFree=1407656/2055920 swapFree=4191900/4192956
[pid=1686] ppid=1684 vsize=12264 CPUtime=0.3
/proc/1686/stat : 1686 (bsolo) R 1684 1686 1150 0 -1 4194304 672 0 0 0 30 0 0 0 19 0 1 0 179186466 12558336 653 1992294400 134512640 137136520 4294956256 18446744073709551615 134544160 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1686/statm: 3066 653 197 640 0 2422 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 12264

[startup+0.701796 s]
/proc/loadavg: 1.08 1.02 1.08 3/64 1686
/proc/meminfo: memFree=1407656/2055920 swapFree=4191900/4192956
[pid=1686] ppid=1684 vsize=13300 CPUtime=0.69
/proc/1686/stat : 1686 (bsolo) R 1684 1686 1150 0 -1 4194304 924 0 0 0 69 0 0 0 22 0 1 0 179186466 13619200 905 1992294400 134512640 137136520 4294956256 18446744073709551615 136293435 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1686/statm: 3325 905 197 640 0 2681 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13300

[startup+1.50194 s]
/proc/loadavg: 1.08 1.02 1.08 2/65 1687
/proc/meminfo: memFree=1404256/2055920 swapFree=4191900/4192956
[pid=1686] ppid=1684 vsize=14468 CPUtime=1.49
/proc/1686/stat : 1686 (bsolo) R 1684 1686 1150 0 -1 4194304 1222 0 0 0 149 0 0 0 25 0 1 0 179186466 14815232 1203 1992294400 134512640 137136520 4294956256 18446744073709551615 134544393 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1686/statm: 3617 1203 197 640 0 2973 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14468

[startup+3.10123 s]
/proc/loadavg: 1.08 1.02 1.08 2/65 1687
/proc/meminfo: memFree=1402720/2055920 swapFree=4191900/4192956
[pid=1686] ppid=1684 vsize=16172 CPUtime=3.09
/proc/1686/stat : 1686 (bsolo) R 1684 1686 1150 0 -1 4194304 1630 0 0 0 309 0 0 0 25 0 1 0 179186466 16560128 1611 1992294400 134512640 137136520 4294956256 18446744073709551615 134544774 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1686/statm: 4043 1611 197 640 0 3399 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16172

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

[startup+3.50131 s]
/proc/loadavg: 1.08 1.02 1.08 2/65 1687
/proc/meminfo: memFree=1401760/2055920 swapFree=4191900/4192956
[pid=1686] ppid=1684 vsize=16436 CPUtime=3.49
/proc/1686/stat : 1686 (bsolo) R 1684 1686 1150 0 -1 4194304 1696 0 0 0 348 1 0 0 25 0 1 0 179186466 16830464 1677 1992294400 134512640 137136520 4294956256 18446744073709551615 134544127 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1686/statm: 4109 1677 197 640 0 3465 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 16436

Child status: 0
Real time (s): 3.51628
CPU time (s): 3.51447
CPU user time (s): 3.50247
CPU system time (s): 0.011998
CPU usage (%): 99.9484
Max. virtual memory (cumulated for all children) (KiB): 16436

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.50247
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1700
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 0.005999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node44 at 2009-06-16 03:31:38
IDJOB=1880185
IDBENCH=1254
IDSOLVER=701
FILE ID=node44/1880185-1245115898
PBS_JOBID= 9363664
Free space on /tmp= 65924 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111227012.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880185-1245115898/watcher-1880185-1245115898 -o /tmp/evaluation-result-1880185-1245115898/solver-1880185-1245115898 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880185-1245115898.opb

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

MD5SUM BENCH= f1ef73d71b7207a4f4673a4d36adcee2
RANDOM SEED=500598706

node44.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		: 3000.263
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		: 3000.263
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:       1408072 kB
Buffers:         39700 kB
Cached:         526344 kB
SwapCached:        260 kB
Active:          58564 kB
Inactive:       520728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1408072 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4200 kB
Writeback:           0 kB
Mapped:          21748 kB
Slab:            54492 kB
Committed_AS:   156556 kB
PageTables:       1384 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= 65920 MiB
End job on node44 at 2009-06-16 03:31:41