Trace number 1880177

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 13.9479 13.9555

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110973163.opb
MD5SUM48e5a0f80e1be044effaae28584b73c9
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 benchmark0.117981
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 1215
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-1880177-1245115863.opb
0.00/0.00	c File size is 9897 bytes.
0.00/0.00	c Highest Coefficient sum: 1215
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      881    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
13.88/13.95	c      101    169      300    20995   69    12459    2820    201   1905 0.05
13.88/13.95	c      252    169      596    49871   83    27328    3103    497   1312 0.19
13.88/13.95	c      481    169     1035    92049   88    46679    3414    936    889 0.54
13.88/13.95	c      820    169     1643   149436   90    69454    3756   1544    602 1.36
13.88/13.95	c     1331    169     2559   234010   91   101084    4132   2460    430 3.09
13.88/13.95	c     2096    169     3944   369591   93   143987    4546   3845    304 6.89
13.88/13.95	c Backtracks by Clause: 2032
13.88/13.95	c Backtracks by PB constraint: 258
13.88/13.95	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
13.88/13.95	c    6     2752    458     4070     2718   248586   2619    197 13.94
13.88/13.95	s UNSATISFIABLE
13.88/13.95	c Total time: 13.944 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-1880177-1245115863/watcher-1880177-1245115863 -o /tmp/evaluation-result-1880177-1245115863/solver-1880177-1245115863 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880177-1245115863.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: 0.89 0.95 1.04 3/64 32476
/proc/meminfo: memFree=1283424/2055920 swapFree=4182544/4192956
[pid=32476] ppid=32474 vsize=10708 CPUtime=0
/proc/32476/stat : 32476 (bsolo) R 32474 32476 31785 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179182705 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32476/statm: 2677 239 188 640 0 2033 0

[startup+0.065041 s]
/proc/loadavg: 0.89 0.95 1.04 3/64 32476
/proc/meminfo: memFree=1283424/2055920 swapFree=4182544/4192956
[pid=32476] ppid=32474 vsize=11224 CPUtime=0.06
/proc/32476/stat : 32476 (bsolo) R 32474 32476 31785 0 -1 4194304 419 0 0 0 6 0 0 0 18 0 1 0 179182705 11493376 400 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32476/statm: 2806 400 197 640 0 2162 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 11224

[startup+0.101048 s]
/proc/loadavg: 0.89 0.95 1.04 3/64 32476
/proc/meminfo: memFree=1283424/2055920 swapFree=4182544/4192956
[pid=32476] ppid=32474 vsize=11484 CPUtime=0.09
/proc/32476/stat : 32476 (bsolo) R 32474 32476 31785 0 -1 4194304 481 0 0 0 9 0 0 0 18 0 1 0 179182705 11759616 462 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32476/statm: 2871 462 197 640 0 2227 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11484

[startup+0.301085 s]
/proc/loadavg: 0.89 0.95 1.04 3/64 32476
/proc/meminfo: memFree=1283424/2055920 swapFree=4182544/4192956
[pid=32476] ppid=32474 vsize=12264 CPUtime=0.29
/proc/32476/stat : 32476 (bsolo) R 32474 32476 31785 0 -1 4194304 676 0 0 0 29 0 0 0 19 0 1 0 179182705 12558336 657 1992294400 134512640 137136520 4294956256 18446744073709551615 136502161 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32476/statm: 3066 657 197 640 0 2422 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12264

[startup+0.70116 s]
/proc/loadavg: 0.89 0.95 1.04 3/64 32476
/proc/meminfo: memFree=1283424/2055920 swapFree=4182544/4192956
[pid=32476] ppid=32474 vsize=13304 CPUtime=0.69
/proc/32476/stat : 32476 (bsolo) R 32474 32476 31785 0 -1 4194304 913 0 0 0 69 0 0 0 22 0 1 0 179182705 13623296 894 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32476/statm: 3326 894 197 640 0 2682 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13304

[startup+1.50131 s]
/proc/loadavg: 0.89 0.95 1.04 2/65 32477
/proc/meminfo: memFree=1280152/2055920 swapFree=4182544/4192956
[pid=32476] ppid=32474 vsize=14472 CPUtime=1.49
/proc/32476/stat : 32476 (bsolo) R 32474 32476 31785 0 -1 4194304 1226 0 0 0 149 0 0 0 25 0 1 0 179182705 14819328 1207 1992294400 134512640 137136520 4294956256 18446744073709551615 134543942 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32476/statm: 3618 1207 197 640 0 2974 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14472

[startup+3.10161 s]
/proc/loadavg: 0.89 0.95 1.04 2/65 32477
/proc/meminfo: memFree=1278552/2055920 swapFree=4182544/4192956
[pid=32476] ppid=32474 vsize=16156 CPUtime=3.09
/proc/32476/stat : 32476 (bsolo) R 32474 32476 31785 0 -1 4194304 1651 0 0 0 309 0 0 0 25 0 1 0 179182705 16543744 1632 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32476/statm: 4039 1632 197 640 0 3395 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16156

[startup+6.30121 s]
/proc/loadavg: 0.90 0.96 1.04 2/65 32477
/proc/meminfo: memFree=1275680/2055920 swapFree=4182544/4192956
[pid=32476] ppid=32474 vsize=18636 CPUtime=6.28
/proc/32476/stat : 32476 (bsolo) R 32474 32476 31785 0 -1 4194304 2253 0 0 0 627 1 0 0 25 0 1 0 179182705 19083264 2234 1992294400 134512640 137136520 4294956256 18446744073709551615 134544160 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32476/statm: 4659 2234 197 640 0 4015 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 18636

[startup+12.7014 s]
/proc/loadavg: 0.91 0.96 1.04 2/65 32477
/proc/meminfo: memFree=1272928/2055920 swapFree=4182544/4192956
[pid=32476] ppid=32474 vsize=20720 CPUtime=12.68
/proc/32476/stat : 32476 (bsolo) R 32474 32476 31785 0 -1 4194304 2776 0 0 0 1266 2 0 0 25 0 1 0 179182705 21217280 2757 1992294400 134512640 137136520 4294956256 18446744073709551615 134540852 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32476/statm: 5180 2757 197 640 0 4536 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 20720

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

[startup+13.5016 s]
/proc/loadavg: 0.91 0.96 1.04 2/65 32477
/proc/meminfo: memFree=1272928/2055920 swapFree=4182544/4192956
[pid=32476] ppid=32474 vsize=20720 CPUtime=13.48
/proc/32476/stat : 32476 (bsolo) R 32474 32476 31785 0 -1 4194304 2776 0 0 0 1346 2 0 0 25 0 1 0 179182705 21217280 2757 1992294400 134512640 137136520 4294956256 18446744073709551615 134543819 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32476/statm: 5180 2757 197 640 0 4536 0
Current children cumulated CPU time (s) 13.48
Current children cumulated vsize (KiB) 20720

[startup+13.9016 s]
/proc/loadavg: 0.91 0.96 1.04 2/65 32477
/proc/meminfo: memFree=1272928/2055920 swapFree=4182544/4192956
[pid=32476] ppid=32474 vsize=20720 CPUtime=13.88
/proc/32476/stat : 32476 (bsolo) R 32474 32476 31785 0 -1 4194304 2776 0 0 0 1386 2 0 0 25 0 1 0 179182705 21217280 2757 1992294400 134512640 137136520 4294956256 18446744073709551615 134544425 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32476/statm: 5180 2757 197 640 0 4536 0
Current children cumulated CPU time (s) 13.88
Current children cumulated vsize (KiB) 20720

Child status: 0
Real time (s): 13.9555
CPU time (s): 13.9479
CPU user time (s): 13.9179
CPU system time (s): 0.029995
CPU usage (%): 99.9456
Max. virtual memory (cumulated for all children) (KiB): 20720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.9179
system time used= 0.029995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2777
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= 27

runsolver used 0.013997 second user time and 0.037994 second system time

The end

Launcher Data 

Begin job on node47 at 2009-06-16 03:31:03
IDJOB=1880177
IDBENCH=1246
IDSOLVER=701
FILE ID=node47/1880177-1245115863
PBS_JOBID= 9363663
Free space on /tmp= 65952 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110973163.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880177-1245115863/watcher-1880177-1245115863 -o /tmp/evaluation-result-1880177-1245115863/solver-1880177-1245115863 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880177-1245115863.opb

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

MD5SUM BENCH= 48e5a0f80e1be044effaae28584b73c9
RANDOM SEED=1650380897

node47.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	: 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		: 3000.261
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:       1283840 kB
Buffers:         39944 kB
Cached:         661564 kB
SwapCached:       4196 kB
Active:          55300 kB
Inactive:       654020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1283840 kB
SwapTotal:     4192956 kB
SwapFree:      4182544 kB
Dirty:            4140 kB
Writeback:           0 kB
Mapped:          13652 kB
Slab:            48708 kB
Committed_AS:   162180 kB
PageTables:       1448 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= 65948 MiB
End job on node47 at 2009-06-16 03:31:17