Trace number 1877251

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 39.1311 39.1444

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110966688.opb
MD5SUM8e7a33f6f23050442c6613e25c3d2ac1
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 benchmark0.277957
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 1237
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-1877251-1245115392.opb
0.00/0.00	c File size is 9915 bytes.
0.00/0.00	c Highest Coefficient sum: 1237
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.
39.08/39.14	c      102    169      202     4431   21     1095    2820    103   4080 0.03
39.08/39.14	c      253    169      357    11188   31     1414    3103    258   4438 0.06
39.08/39.14	c      478    169      591    19671   33     1883    3414    492   4345 0.11
39.08/39.14	c      818    169      943    32230   34     2589    3756    844   3951 0.21
39.08/39.14	c     1326    169     1470    51054   34     3642    4132   1371   3662 0.36
39.08/39.14	c     2089    169     2250    73116   32     5204    4546   2151   3208 0.65
39.08/39.14	c     3235    169     3435   107511   31     7574    5001   3336   2793 1.16
39.08/39.14	c     4957    169     2601    70318   27     5897    5502   2502   2419 2.05
39.08/39.14	c     7542    169     5275   157687   29    11251    6053   5176   2249 3.35
39.08/39.14	c    11421    169     6136   210306   34    12990    6659   6037   1987 5.75
39.08/39.14	c    17245    169     5345   200289   37    11414    7325   5246   1817 9.49
39.08/39.14	c    25982    169     6867   248954   36    14449    8058   6768   1606 16.17
39.08/39.14	c    39093    169     8034   327623   40    16804    8864   7935   1449 26.98
39.08/39.14	c Backtracks by Clause: 52377
39.08/39.14	c Backtracks by PB constraint: 19
39.08/39.14	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
39.08/39.14	c   13    52396  14391    84315     8098   262519   7999   1339 39.13
39.08/39.14	s UNSATISFIABLE
39.08/39.14	c Total time: 39.129 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-1877251-1245115392/watcher-1877251-1245115392 -o /tmp/evaluation-result-1877251-1245115392/solver-1877251-1245115392 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877251-1245115392.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: 1.04 1.01 1.02 2/65 2208
/proc/meminfo: memFree=1088232/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=10708 CPUtime=0
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179138660 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 2677 240 189 640 0 2033 0

[startup+0.043083 s]
/proc/loadavg: 1.04 1.01 1.02 2/65 2208
/proc/meminfo: memFree=1088232/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=10832 CPUtime=0.04
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 295 0 0 0 4 0 0 0 18 0 1 0 179138660 11091968 276 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 2708 276 196 640 0 2064 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 10832

[startup+0.101089 s]
/proc/loadavg: 1.04 1.01 1.02 2/65 2208
/proc/meminfo: memFree=1088232/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=10952 CPUtime=0.09
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 336 0 0 0 9 0 0 0 18 0 1 0 179138660 11214848 317 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 2738 317 196 640 0 2094 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10952

[startup+0.301112 s]
/proc/loadavg: 1.04 1.01 1.02 2/65 2208
/proc/meminfo: memFree=1088232/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=11328 CPUtime=0.29
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 440 0 0 0 29 0 0 0 19 0 1 0 179138660 11599872 421 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 2832 421 196 640 0 2188 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11328

[startup+0.701158 s]
/proc/loadavg: 1.04 1.01 1.02 2/65 2208
/proc/meminfo: memFree=1088232/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=11828 CPUtime=0.69
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 573 0 0 0 69 0 0 0 22 0 1 0 179138660 12111872 554 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 2957 554 196 640 0 2313 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11828

[startup+1.50125 s]
/proc/loadavg: 1.04 1.01 1.02 2/66 2209
/proc/meminfo: memFree=1086432/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=12684 CPUtime=1.49
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 784 0 0 0 149 0 0 0 25 0 1 0 179138660 12988416 765 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 3171 765 196 640 0 2527 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12684

[startup+3.10143 s]
/proc/loadavg: 1.03 1.01 1.02 2/66 2209
/proc/meminfo: memFree=1085344/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=13172 CPUtime=3.09
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 910 0 0 0 309 0 0 0 25 0 1 0 179138660 13488128 891 1992294400 134512640 137136520 4294956256 18446744073709551615 136500590 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 3293 891 196 640 0 2649 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13172

[startup+6.30179 s]
/proc/loadavg: 1.03 1.01 1.02 2/66 2209
/proc/meminfo: memFree=1084640/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=14404 CPUtime=6.28
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 1203 0 0 0 627 1 0 0 25 0 1 0 179138660 14749696 1184 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 3601 1184 196 640 0 2957 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 14404

[startup+12.7015 s]
/proc/loadavg: 1.03 1.01 1.02 2/66 2209
/proc/meminfo: memFree=1083368/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=15140 CPUtime=12.68
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 1385 0 0 0 1266 2 0 0 25 0 1 0 179138660 15503360 1366 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 3785 1366 196 640 0 3141 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 15140

[startup+25.502 s]
/proc/loadavg: 1.02 1.01 1.02 2/66 2209
/proc/meminfo: memFree=1082920/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=15632 CPUtime=25.48
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 1504 0 0 0 2543 5 0 0 25 0 1 0 179138660 16007168 1485 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 3908 1485 196 640 0 3264 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 15632

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

[startup+31.9057 s]
/proc/loadavg: 1.02 1.01 1.02 2/66 2209
/proc/meminfo: memFree=1082152/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=16356 CPUtime=31.88
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 1696 0 0 0 3182 6 0 0 25 0 1 0 179138660 16748544 1677 1992294400 134512640 137136520 4294956256 18446744073709551615 134544812 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 4089 1677 196 640 0 3445 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 16356

[startup+35.1011 s]
/proc/loadavg: 1.02 1.01 1.02 2/66 2209
/proc/meminfo: memFree=1082152/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=16356 CPUtime=35.09
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 1696 0 0 0 3502 7 0 0 25 0 1 0 179138660 16748544 1677 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 4089 1677 196 640 0 3445 0
Current children cumulated CPU time (s) 35.09
Current children cumulated vsize (KiB) 16356

[startup+36.7012 s]
/proc/loadavg: 1.02 1.01 1.02 2/66 2209
/proc/meminfo: memFree=1082152/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=16356 CPUtime=36.68
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 1696 0 0 0 3661 7 0 0 25 0 1 0 179138660 16748544 1677 1992294400 134512640 137136520 4294956256 18446744073709551615 134616944 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 4089 1677 196 640 0 3445 0
Current children cumulated CPU time (s) 36.68
Current children cumulated vsize (KiB) 16356

[startup+38.3014 s]
/proc/loadavg: 1.02 1.01 1.02 2/66 2209
/proc/meminfo: memFree=1082152/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=16356 CPUtime=38.27
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 1696 0 0 0 3820 7 0 0 25 0 1 0 179138660 16748544 1677 1992294400 134512640 137136520 4294956256 18446744073709551615 136500598 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 4089 1677 196 640 0 3445 0
Current children cumulated CPU time (s) 38.27
Current children cumulated vsize (KiB) 16356

[startup+38.7015 s]
/proc/loadavg: 1.02 1.01 1.02 2/66 2209
/proc/meminfo: memFree=1082152/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=16356 CPUtime=38.68
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 1696 0 0 0 3860 8 0 0 25 0 1 0 179138660 16748544 1677 1992294400 134512640 137136520 4294956256 18446744073709551615 134544157 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 4089 1677 196 640 0 3445 0
Current children cumulated CPU time (s) 38.68
Current children cumulated vsize (KiB) 16356

[startup+39.1015 s]
/proc/loadavg: 1.02 1.01 1.02 2/66 2209
/proc/meminfo: memFree=1082152/2055920 swapFree=4191900/4192956
[pid=2208] ppid=2206 vsize=16356 CPUtime=39.08
/proc/2208/stat : 2208 (bsolo) R 2206 2208 1864 0 -1 4194304 1696 0 0 0 3900 8 0 0 25 0 1 0 179138660 16748544 1677 1992294400 134512640 137136520 4294956256 18446744073709551615 134543819 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2208/statm: 4089 1677 196 640 0 3445 0
Current children cumulated CPU time (s) 39.08
Current children cumulated vsize (KiB) 16356

Child status: 0
Real time (s): 39.1444
CPU time (s): 39.1311
CPU user time (s): 39.0491
CPU system time (s): 0.081987
CPU usage (%): 99.9658
Max. virtual memory (cumulated for all children) (KiB): 16356

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 39.0491
system time used= 0.081987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1697
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= 28

runsolver used 0.046992 second user time and 0.092985 second system time

The end

Launcher Data 

Begin job on node32 at 2009-06-16 03:23:12
IDJOB=1877251
IDBENCH=1180
IDSOLVER=699
FILE ID=node32/1877251-1245115392
PBS_JOBID= 9363635
Free space on /tmp= 66344 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110966688.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877251-1245115392/watcher-1877251-1245115392 -o /tmp/evaluation-result-1877251-1245115392/solver-1877251-1245115392 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877251-1245115392.opb

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

MD5SUM BENCH= 8e7a33f6f23050442c6613e25c3d2ac1
RANDOM SEED=1278256803

node32.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		: 3000.234
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	: 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		: 3000.234
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:       1088712 kB
Buffers:         78084 kB
Cached:         791580 kB
SwapCached:        260 kB
Active:          82816 kB
Inactive:       801168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1088712 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4160 kB
Writeback:           0 kB
Mapped:          23776 kB
Slab:            68956 kB
Committed_AS:   137128 kB
PageTables:       1492 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66340 MiB
End job on node32 at 2009-06-16 03:23:52