Trace number 1877298

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 3.1UNSAT 47.0328 47.0467

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111217392.opb
MD5SUM87905b580a8cbad3b6d7f981df390136
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 benchmark0.6479
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 1248
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: Cardinality Constraint 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-1877298-1245115768.opb
0.00/0.00	c File size is 9913 bytes.
0.00/0.00	c Highest Coefficient sum: 1248
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.
46.97/47.04	c      100    169      205     4177   20     1101    2820    106   4545 0.02
46.97/47.04	c      250    169      359     8205   22     1410    3103    260   4629 0.05
46.97/47.04	c      475    169      594    16902   28     1881    3414    495   4567 0.10
46.97/47.04	c      814    169      944    29149   30     2579    3756    845   4153 0.20
46.97/47.04	c     1322    169     1469    50520   34     3638    4132   1370   3682 0.36
46.97/47.04	c     2091    169     2259    77166   34     5219    4546   2160   3163 0.66
46.97/47.04	c     3239    169     3431   114953   33     7562    5001   3332   2665 1.22
46.97/47.04	c     4960    169     2632    78553   29     5955    5502   2533   2274 2.18
46.97/47.04	c     7544    169     5305   172124   32    11309    6053   5206   2121 3.56
46.97/47.04	c    11423    169     3127   117395   37     6961    6659   3028   1888 6.05
46.97/47.04	c    17245    169     5788   197076   34    12285    7325   5689   1778 9.69
46.97/47.04	c    25984    169     7307   276934   37    15371    8058   7208   1597 16.27
46.97/47.04	c    39094    169     4436   184946   41     9633    8864   4337   1433 27.28
46.97/47.04	c    58765    121     6767   256538   37    14268    9751   6668   1290 45.55
46.97/47.04	c Backtracks by Clause: 60365
46.97/47.04	c Backtracks by PB constraint: 27
46.97/47.04	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
46.97/47.04	c   14    60392  16654    98384     8423   298555   8324   1284 47.03
46.97/47.04	s UNSATISFIABLE
46.97/47.04	c Total time: 47.029 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-1877298-1245115768/watcher-1877298-1245115768 -o /tmp/evaluation-result-1877298-1245115768/solver-1877298-1245115768 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877298-1245115768.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 1949
/proc/meminfo: memFree=1422656/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=10708 CPUtime=0
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 258 0 0 0 0 0 0 0 20 0 1 0 179176445 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 2677 239 188 640 0 2033 0

[startup+0.0207501 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 1949
/proc/meminfo: memFree=1422656/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=10708 CPUtime=0.01
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 278 0 0 0 1 0 0 0 20 0 1 0 179176445 10964992 259 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 2677 259 196 640 0 2033 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 10708

[startup+0.101759 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 1949
/proc/meminfo: memFree=1422656/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=10956 CPUtime=0.09
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 329 0 0 0 9 0 0 0 20 0 1 0 179176445 11218944 310 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 2739 310 196 640 0 2095 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10956

[startup+0.301778 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 1949
/proc/meminfo: memFree=1422656/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=11324 CPUtime=0.29
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 439 0 0 0 29 0 0 0 22 0 1 0 179176445 11595776 420 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 2831 420 196 640 0 2187 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11324

[startup+0.701819 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 1949
/proc/meminfo: memFree=1422656/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=11944 CPUtime=0.69
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 583 0 0 0 69 0 0 0 25 0 1 0 179176445 12230656 564 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 2986 564 196 640 0 2342 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11944

[startup+1.5019 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1950
/proc/meminfo: memFree=1420728/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=12804 CPUtime=1.49
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 791 0 0 0 149 0 0 0 25 0 1 0 179176445 13111296 772 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 3201 772 196 640 0 2557 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12804

[startup+3.10106 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1950
/proc/meminfo: memFree=1419512/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=13432 CPUtime=3.09
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 952 0 0 0 308 1 0 0 25 0 1 0 179176445 13754368 933 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 3358 933 196 640 0 2714 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13432

[startup+6.30139 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1950
/proc/meminfo: memFree=1418872/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=14296 CPUtime=6.29
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 1173 0 0 0 626 3 0 0 25 0 1 0 179176445 14639104 1154 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 3574 1154 196 640 0 2930 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 14296

[startup+12.701 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1950
/proc/meminfo: memFree=1417912/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=14900 CPUtime=12.69
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 1317 0 0 0 1265 4 0 0 25 0 1 0 179176445 15257600 1298 1992294400 134512640 137136520 4294956256 18446744073709551615 134543881 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 3725 1298 196 640 0 3081 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 14900

[startup+25.5013 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1950
/proc/meminfo: memFree=1416824/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=15960 CPUtime=25.48
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 1584 0 0 0 2542 6 0 0 25 0 1 0 179176445 16343040 1565 1992294400 134512640 137136520 4294956256 18446744073709551615 134616694 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 3990 1565 197 640 0 3346 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 15960

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

[startup+38.3016 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1950
/proc/meminfo: memFree=1416184/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=16572 CPUtime=38.28
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 1748 0 0 0 3819 9 0 0 25 0 1 0 179176445 16969728 1729 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 4143 1729 197 640 0 3499 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 16572

[startup+41.5019 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1950
/proc/meminfo: memFree=1416184/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=16572 CPUtime=41.48
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 1748 0 0 0 4138 10 0 0 25 0 1 0 179176445 16969728 1729 1992294400 134512640 137136520 4294956256 18446744073709551615 136509014 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 4143 1729 197 640 0 3499 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 16572

[startup+44.7013 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1950
/proc/meminfo: memFree=1416184/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=16572 CPUtime=44.68
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 1748 0 0 0 4458 10 0 0 25 0 1 0 179176445 16969728 1729 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 4143 1729 197 640 0 3499 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 16572

[startup+46.3014 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1950
/proc/meminfo: memFree=1416184/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=16572 CPUtime=46.27
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 1748 0 0 0 4617 10 0 0 25 0 1 0 179176445 16969728 1729 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 4143 1729 197 640 0 3499 0
Current children cumulated CPU time (s) 46.27
Current children cumulated vsize (KiB) 16572

[startup+46.7015 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1950
/proc/meminfo: memFree=1416184/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=16572 CPUtime=46.67
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 1748 0 0 0 4657 10 0 0 25 0 1 0 179176445 16969728 1729 1992294400 134512640 137136520 4294956256 18446744073709551615 134544125 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 4143 1729 197 640 0 3499 0
Current children cumulated CPU time (s) 46.67
Current children cumulated vsize (KiB) 16572

[startup+46.9015 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1950
/proc/meminfo: memFree=1416184/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=16572 CPUtime=46.87
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 1748 0 0 0 4677 10 0 0 25 0 1 0 179176445 16969728 1729 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 4143 1729 197 640 0 3499 0
Current children cumulated CPU time (s) 46.87
Current children cumulated vsize (KiB) 16572

[startup+47.0015 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1950
/proc/meminfo: memFree=1416184/2055920 swapFree=4192812/4192956
[pid=1949] ppid=1947 vsize=16572 CPUtime=46.97
/proc/1949/stat : 1949 (bsolo) R 1947 1949 1525 0 -1 4194304 1748 0 0 0 4687 10 0 0 25 0 1 0 179176445 16969728 1729 1992294400 134512640 137136520 4294956256 18446744073709551615 136502425 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1949/statm: 4143 1729 197 640 0 3499 0
Current children cumulated CPU time (s) 46.97
Current children cumulated vsize (KiB) 16572

Child status: 0
Real time (s): 47.0467
CPU time (s): 47.0328
CPU user time (s): 46.9209
CPU system time (s): 0.111982
CPU usage (%): 99.9705
Max. virtual memory (cumulated for all children) (KiB): 16572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 46.9209
system time used= 0.111982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1749
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= 70

runsolver used 0.046992 second user time and 0.13098 second system time

The end

Launcher Data 

Begin job on node27 at 2009-06-16 03:29:28
IDJOB=1877298
IDBENCH=1227
IDSOLVER=699
FILE ID=node27/1877298-1245115768
PBS_JOBID= 9363660
Free space on /tmp= 66288 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111217392.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877298-1245115768/watcher-1877298-1245115768 -o /tmp/evaluation-result-1877298-1245115768/solver-1877298-1245115768 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877298-1245115768.opb

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

MD5SUM BENCH= 87905b580a8cbad3b6d7f981df390136
RANDOM SEED=1743947547

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:       1423072 kB
Buffers:         63124 kB
Cached:         486176 kB
SwapCached:        140 kB
Active:         140828 kB
Inactive:       422968 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1423072 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4128 kB
Writeback:           0 kB
Mapped:          24204 kB
Slab:            54936 kB
Committed_AS:   144340 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 03:30:15