Trace number 1880139

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 3.60245 3.60419

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111222257.opb
MD5SUM55dd7a9523449c2d998334f2315a7996
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 benchmark0.708891
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 1262
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-1880139-1245115655.opb
0.00/0.00	c File size is 9907 bytes.
0.00/0.00	c Highest Coefficient sum: 1262
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: 900
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.006 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      879    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
3.59/3.60	c      100    169      299    20299   67    13747    2820    200   1612 0.06
3.59/3.60	c      250    168      575    45491   79    28283    3103    476   1219 0.20
3.59/3.60	c      476    168      986    83139   84    47060    3414    887    876 0.54
3.59/3.60	c      814    168     1563   134267   85    65581    3756   1464    720 1.13
3.59/3.60	c     1322    168     2285   192244   84    84721    4132   2186    539 2.45
3.59/3.60	c Backtracks by Clause: 949
3.59/3.60	c Backtracks by PB constraint: 152
3.59/3.60	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
3.59/3.60	c    5     1646    311     2413     2759   230336   2660    457 3.60
3.59/3.60	s UNSATISFIABLE
3.59/3.60	c Total time: 3.6 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-1880139-1245115655/watcher-1880139-1245115655 -o /tmp/evaluation-result-1880139-1245115655/solver-1880139-1245115655 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880139-1245115655.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 1.07 2/64 1796
/proc/meminfo: memFree=1422968/2055920 swapFree=4192812/4192956
[pid=1796] ppid=1793 vsize=10708 CPUtime=0
/proc/1796/stat : 1796 (bsolo) R 1793 1796 1525 0 -1 4194304 265 0 0 0 0 0 0 0 20 0 1 0 179165137 10964992 246 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1796/statm: 2677 246 190 640 0 2033 0

[startup+0.0390961 s]
/proc/loadavg: 1.00 1.00 1.07 2/64 1796
/proc/meminfo: memFree=1422968/2055920 swapFree=4192812/4192956
[pid=1796] ppid=1793 vsize=11096 CPUtime=0.03
/proc/1796/stat : 1796 (bsolo) R 1793 1796 1525 0 -1 4194304 364 0 0 0 3 0 0 0 20 0 1 0 179165137 11362304 345 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1796/statm: 2774 345 196 640 0 2130 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 11096

[startup+0.101102 s]
/proc/loadavg: 1.00 1.00 1.07 2/64 1796
/proc/meminfo: memFree=1422968/2055920 swapFree=4192812/4192956
[pid=1796] ppid=1793 vsize=11492 CPUtime=0.09
/proc/1796/stat : 1796 (bsolo) R 1793 1796 1525 0 -1 4194304 467 0 0 0 9 0 0 0 20 0 1 0 179165137 11767808 448 1992294400 134512640 137136520 4294956256 18446744073709551615 136498165 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1796/statm: 2873 448 197 640 0 2229 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11492

[startup+0.301122 s]
/proc/loadavg: 1.00 1.00 1.07 2/64 1796
/proc/meminfo: memFree=1422968/2055920 swapFree=4192812/4192956
[pid=1796] ppid=1793 vsize=12268 CPUtime=0.29
/proc/1796/stat : 1796 (bsolo) R 1793 1796 1525 0 -1 4194304 657 0 0 0 29 0 0 0 22 0 1 0 179165137 12562432 638 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1796/statm: 3067 638 197 640 0 2423 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12268

[startup+0.701162 s]
/proc/loadavg: 1.00 1.00 1.07 2/64 1796
/proc/meminfo: memFree=1422968/2055920 swapFree=4192812/4192956
[pid=1796] ppid=1793 vsize=13180 CPUtime=0.69
/proc/1796/stat : 1796 (bsolo) R 1793 1796 1525 0 -1 4194304 894 0 0 0 69 0 0 0 25 0 1 0 179165137 13496320 875 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1796/statm: 3295 875 197 640 0 2651 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13180

[startup+1.50124 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 1797
/proc/meminfo: memFree=1419632/2055920 swapFree=4192812/4192956
[pid=1796] ppid=1793 vsize=14352 CPUtime=1.49
/proc/1796/stat : 1796 (bsolo) R 1793 1796 1525 0 -1 4194304 1196 0 0 0 149 0 0 0 25 0 1 0 179165137 14696448 1177 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1796/statm: 3588 1177 197 640 0 2944 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14352

[startup+3.1014 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 1797
/proc/meminfo: memFree=1418416/2055920 swapFree=4192812/4192956
[pid=1796] ppid=1793 vsize=15784 CPUtime=3.09
/proc/1796/stat : 1796 (bsolo) R 1793 1796 1525 0 -1 4194304 1541 0 0 0 308 1 0 0 25 0 1 0 179165137 16162816 1522 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1796/statm: 3946 1522 197 640 0 3302 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 15784

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

[startup+3.50145 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 1797
/proc/meminfo: memFree=1417392/2055920 swapFree=4192812/4192956
[pid=1796] ppid=1793 vsize=16044 CPUtime=3.49
/proc/1796/stat : 1796 (bsolo) R 1793 1796 1525 0 -1 4194304 1603 0 0 0 348 1 0 0 25 0 1 0 179165137 16429056 1584 1992294400 134512640 137136520 4294956256 18446744073709551615 134543819 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1796/statm: 4011 1584 197 640 0 3367 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 16044

[startup+3.60146 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 1797
/proc/meminfo: memFree=1417392/2055920 swapFree=4192812/4192956
[pid=1796] ppid=1793 vsize=16044 CPUtime=3.59
/proc/1796/stat : 1796 (bsolo) R 1793 1796 1525 0 -1 4194304 1620 0 0 0 358 1 0 0 25 0 1 0 179165137 16429056 1601 1992294400 134512640 137136520 4294956256 18446744073709551615 134544547 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1796/statm: 4011 1601 197 640 0 3367 0
Current children cumulated CPU time (s) 3.59
Current children cumulated vsize (KiB) 16044

Child status: 0
Real time (s): 3.60419
CPU time (s): 3.60245
CPU user time (s): 3.58945
CPU system time (s): 0.012998
CPU usage (%): 99.9517
Max. virtual memory (cumulated for all children) (KiB): 16044

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.58945
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= 1621
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= 6

runsolver used 0.007998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node27 at 2009-06-16 03:27:35
IDJOB=1880139
IDBENCH=1208
IDSOLVER=701
FILE ID=node27/1880139-1245115655
PBS_JOBID= 9363660
Free space on /tmp= 66288 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111222257.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880139-1245115655/watcher-1880139-1245115655 -o /tmp/evaluation-result-1880139-1245115655/solver-1880139-1245115655 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880139-1245115655.opb

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

MD5SUM BENCH= 55dd7a9523449c2d998334f2315a7996
RANDOM SEED=1243050999

node27.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		: 2800.234
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	: 5521.40
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		: 2800.234
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:       1423384 kB
Buffers:         62924 kB
Cached:         486036 kB
SwapCached:        140 kB
Active:         138260 kB
Inactive:       425236 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1423384 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4208 kB
Writeback:           0 kB
Mapped:          24204 kB
Slab:            54952 kB
Committed_AS:   143232 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66284 MiB
End job on node27 at 2009-06-16 03:27:38