Trace number 1880143

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 2.55661 2.55827

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111222539.opb
MD5SUM85b1a2d6763bafe7f0a209fbd0ea6a94
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 benchmark0.061989
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 1192
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-1880143-1245115684.opb
0.00/0.00	c File size is 9900 bytes.
0.00/0.00	c Highest Coefficient sum: 1192
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: 903
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      882    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
2.49/2.55	c      100    169      299    19169   64    13481    2820    200   1785 0.06
2.49/2.55	c      252    169      598    45810   76    30176    3103    499   1285 0.20
2.49/2.55	c      477    169     1039    86512   83    51406    3414    940    868 0.55
2.49/2.55	c      815    169     1695   150821   88    76227    3756   1596    632 1.29
2.49/2.55	c Backtracks by Clause: 1021
2.49/2.55	c Backtracks by PB constraint: 145
2.49/2.55	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
2.49/2.55	c    4     1214    248     1890     2469   225138   2370    475 2.55
2.49/2.55	s UNSATISFIABLE
2.49/2.55	c Total time: 2.554 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-1880143-1245115684/watcher-1880143-1245115684 -o /tmp/evaluation-result-1880143-1245115684/solver-1880143-1245115684 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880143-1245115684.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: 1.00 1.00 1.06 3/64 31057
/proc/meminfo: memFree=1501736/2055920 swapFree=4192812/4192956
[pid=31057] ppid=31055 vsize=10708 CPUtime=0
/proc/31057/stat : 31057 (bsolo) R 31055 31057 30391 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179168794 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31057/statm: 2677 239 188 640 0 2033 0

[startup+0.0197471 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 31057
/proc/meminfo: memFree=1501736/2055920 swapFree=4192812/4192956
[pid=31057] ppid=31055 vsize=10840 CPUtime=0.01
/proc/31057/stat : 31057 (bsolo) R 31055 31057 30391 0 -1 4194304 315 0 0 0 1 0 0 0 18 0 1 0 179168794 11100160 296 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31057/statm: 2710 296 196 640 0 2066 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 10840

[startup+0.10176 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 31057
/proc/meminfo: memFree=1501736/2055920 swapFree=4192812/4192956
[pid=31057] ppid=31055 vsize=11496 CPUtime=0.09
/proc/31057/stat : 31057 (bsolo) R 31055 31057 30391 0 -1 4194304 469 0 0 0 9 0 0 0 18 0 1 0 179168794 11771904 450 1992294400 134512640 137136520 4294956256 18446744073709551615 134616798 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31057/statm: 2874 450 197 640 0 2230 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11496

[startup+0.301792 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 31057
/proc/meminfo: memFree=1501736/2055920 swapFree=4192812/4192956
[pid=31057] ppid=31055 vsize=12400 CPUtime=0.29
/proc/31057/stat : 31057 (bsolo) R 31055 31057 30391 0 -1 4194304 687 0 0 0 29 0 0 0 19 0 1 0 179168794 12697600 668 1992294400 134512640 137136520 4294956256 18446744073709551615 134544402 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31057/statm: 3100 668 197 640 0 2456 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12400

[startup+0.701859 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 31057
/proc/meminfo: memFree=1501736/2055920 swapFree=4192812/4192956
[pid=31057] ppid=31055 vsize=13320 CPUtime=0.69
/proc/31057/stat : 31057 (bsolo) R 31055 31057 30391 0 -1 4194304 933 0 0 0 69 0 0 0 22 0 1 0 179168794 13639680 914 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31057/statm: 3330 914 197 640 0 2686 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13320

[startup+1.50199 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 31058
/proc/meminfo: memFree=1498208/2055920 swapFree=4192812/4192956
[pid=31057] ppid=31055 vsize=14744 CPUtime=1.49
/proc/31057/stat : 31057 (bsolo) R 31055 31057 30391 0 -1 4194304 1303 0 0 0 149 0 0 0 25 0 1 0 179168794 15097856 1284 1992294400 134512640 137136520 4294956256 18446744073709551615 134543819 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31057/statm: 3686 1284 197 640 0 3042 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14744

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

[startup+2.30112 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 31058
/proc/meminfo: memFree=1496352/2055920 swapFree=4192812/4192956
[pid=31057] ppid=31055 vsize=15924 CPUtime=2.29
/proc/31057/stat : 31057 (bsolo) R 31055 31057 30391 0 -1 4194304 1572 0 0 0 228 1 0 0 25 0 1 0 179168794 16306176 1553 1992294400 134512640 137136520 4294956256 18446744073709551615 134543948 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31057/statm: 3981 1553 197 640 0 3337 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 15924

[startup+2.50116 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 31058
/proc/meminfo: memFree=1496352/2055920 swapFree=4192812/4192956
[pid=31057] ppid=31055 vsize=16052 CPUtime=2.49
/proc/31057/stat : 31057 (bsolo) R 31055 31057 30391 0 -1 4194304 1624 0 0 0 248 1 0 0 25 0 1 0 179168794 16437248 1605 1992294400 134512640 137136520 4294956256 18446744073709551615 134543971 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31057/statm: 4013 1605 197 640 0 3369 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 16052

Child status: 0
Real time (s): 2.55827
CPU time (s): 2.55661
CPU user time (s): 2.54361
CPU system time (s): 0.012998
CPU usage (%): 99.9353
Max. virtual memory (cumulated for all children) (KiB): 16052

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.54361
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1639
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= 4

runsolver used 0.004999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node15 at 2009-06-16 03:28:04
IDJOB=1880143
IDBENCH=1212
IDSOLVER=701
FILE ID=node15/1880143-1245115684
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-t2001.13queen13.1111222539.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880143-1245115684/watcher-1880143-1245115684 -o /tmp/evaluation-result-1880143-1245115684/solver-1880143-1245115684 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880143-1245115684.opb

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

MD5SUM BENCH= 85b1a2d6763bafe7f0a209fbd0ea6a94
RANDOM SEED=1132652110

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:       1502216 kB
Buffers:         31548 kB
Cached:         441392 kB
SwapCached:          0 kB
Active:          65004 kB
Inactive:       421288 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1502216 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3952 kB
Writeback:           0 kB
Mapped:          23192 kB
Slab:            53440 kB
Committed_AS:   160116 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 03:28:07