Trace number 1877279

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 47.6228 47.6377

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: 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-1877279-1245115652.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.
47.57/47.63	c      102    169      205     3257   15     1103    2820    106   4434 0.02
47.57/47.63	c      254    169      361     7311   20     1415    3103    262   5183 0.05
47.57/47.63	c      479    169      592    14835   25     1876    3414    493   5042 0.10
47.57/47.63	c      818    169      940    26473   28     2579    3756    841   4783 0.17
47.57/47.63	c     1327    169     1458    43724   29     3620    4132   1359   4212 0.32
47.57/47.63	c     2091    169     2259    72317   32     5225    4546   2160   3694 0.57
47.57/47.63	c     3237    169     3444   122316   35     7606    5001   3345   3189 1.01
47.57/47.63	c     4958    169     2610    90164   34     5912    5502   2511   2480 2.00
47.57/47.63	c     7544    169     5285   181538   34    11274    6053   5186   2237 3.37
47.57/47.63	c    11423    169     3127   115908   37     6964    6659   3028   1947 5.87
47.57/47.63	c    17245    169     5754   224067   38    12228    7325   5655   1811 9.52
47.57/47.63	c    25982    169     7260   290986   40    15248    8058   7161   1598 16.25
47.57/47.63	c    39094    169     4275   169196   39     9262    8864   4176   1467 26.64
47.57/47.63	c    58764    169     6493   266684   41    13710    9751   6394   1360 43.20
47.57/47.63	c Backtracks by Clause: 62636
47.57/47.63	c Backtracks by PB constraint: 25
47.57/47.63	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
47.57/47.63	c   14    62661  15977    95321     5557   226036   5458   1315 47.62
47.57/47.63	s UNSATISFIABLE
47.57/47.63	c Total time: 47.62 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-1877279-1245115652/watcher-1877279-1245115652 -o /tmp/evaluation-result-1877279-1245115652/solver-1877279-1245115652 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877279-1245115652.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 3/65 32223
/proc/meminfo: memFree=893648/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=10708 CPUtime=0
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 258 0 0 0 0 0 0 0 20 0 1 0 168091689 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 2677 239 188 640 0 2033 0

[startup+0.0216991 s]
/proc/loadavg: 1.00 1.00 1.07 3/65 32223
/proc/meminfo: memFree=893648/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=10708 CPUtime=0.02
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 277 0 0 0 2 0 0 0 20 0 1 0 168091689 10964992 258 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 2677 258 196 640 0 2033 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 10708

[startup+0.101706 s]
/proc/loadavg: 1.00 1.00 1.07 3/65 32223
/proc/meminfo: memFree=893648/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=10956 CPUtime=0.1
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 330 0 0 0 10 0 0 0 20 0 1 0 168091689 11218944 311 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 2739 311 196 640 0 2095 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 10956

[startup+0.301724 s]
/proc/loadavg: 1.00 1.00 1.07 3/65 32223
/proc/meminfo: memFree=893648/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=11328 CPUtime=0.29
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 437 0 0 0 29 0 0 0 22 0 1 0 168091689 11599872 418 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 2832 418 196 640 0 2188 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11328

[startup+0.701762 s]
/proc/loadavg: 1.00 1.00 1.07 3/65 32223
/proc/meminfo: memFree=893648/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=12060 CPUtime=0.69
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 616 0 0 0 69 0 0 0 25 0 1 0 168091689 12349440 597 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 3015 597 196 640 0 2371 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12060

[startup+1.50184 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 32224
/proc/meminfo: memFree=891464/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=13056 CPUtime=1.49
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 879 0 0 0 149 0 0 0 25 0 1 0 168091689 13369344 860 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 3264 860 196 640 0 2620 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 13056

[startup+3.10199 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 32224
/proc/meminfo: memFree=890312/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=13548 CPUtime=3.09
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 999 0 0 0 308 1 0 0 25 0 1 0 168091689 13873152 980 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 3387 980 196 640 0 2743 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13548

[startup+6.30129 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 32224
/proc/meminfo: memFree=889680/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=14272 CPUtime=6.29
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 1159 0 0 0 627 2 0 0 25 0 1 0 168091689 14614528 1140 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 3568 1140 196 640 0 2924 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 14272

[startup+12.7019 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 32224
/proc/meminfo: memFree=888400/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=15252 CPUtime=12.69
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 1430 0 0 0 1266 3 0 0 25 0 1 0 168091689 15618048 1411 1992294400 134512640 137136520 4294956256 18446744073709551615 134544547 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 3813 1411 196 640 0 3169 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 15252

[startup+25.5011 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 32224
/proc/meminfo: memFree=887888/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=15748 CPUtime=25.49
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 1549 0 0 0 2543 6 0 0 25 0 1 0 168091689 16125952 1530 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 3937 1530 196 640 0 3293 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 15748

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

[startup+38.3013 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 32224
/proc/meminfo: memFree=887440/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=16372 CPUtime=38.28
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 1694 0 0 0 3820 8 0 0 25 0 1 0 168091689 16764928 1675 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 4093 1675 196 640 0 3449 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 16372

[startup+41.5016 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 32224
/proc/meminfo: memFree=887312/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=16372 CPUtime=41.48
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 1694 0 0 0 4139 9 0 0 25 0 1 0 168091689 16764928 1675 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 4093 1675 196 640 0 3449 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 16372

[startup+44.7019 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 32224
/proc/meminfo: memFree=887248/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=16372 CPUtime=44.68
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 1708 0 0 0 4459 9 0 0 25 0 1 0 168091689 16764928 1689 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 4093 1689 196 640 0 3449 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 16372

[startup+46.301 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 32224
/proc/meminfo: memFree=887120/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=16748 CPUtime=46.28
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 1780 0 0 0 4618 10 0 0 25 0 1 0 168091689 17149952 1761 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 4187 1761 196 640 0 3543 0
Current children cumulated CPU time (s) 46.28
Current children cumulated vsize (KiB) 16748

[startup+47.1011 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 32224
/proc/meminfo: memFree=887120/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=17116 CPUtime=47.07
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 1881 0 0 0 4697 10 0 0 25 0 1 0 168091689 17526784 1862 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 4279 1862 196 640 0 3635 0
Current children cumulated CPU time (s) 47.07
Current children cumulated vsize (KiB) 17116

[startup+47.5012 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 32224
/proc/meminfo: memFree=886608/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=17116 CPUtime=47.47
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 1896 0 0 0 4737 10 0 0 25 0 1 0 168091689 17526784 1877 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 4279 1877 196 640 0 3635 0
Current children cumulated CPU time (s) 47.47
Current children cumulated vsize (KiB) 17116

[startup+47.6012 s]
/proc/loadavg: 1.00 1.00 1.07 2/66 32224
/proc/meminfo: memFree=886608/2055920 swapFree=4192812/4192956
[pid=32223] ppid=32221 vsize=17116 CPUtime=47.57
/proc/32223/stat : 32223 (bsolo) R 32221 32223 32018 0 -1 4194304 1896 0 0 0 4747 10 0 0 25 0 1 0 168091689 17526784 1877 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32223/statm: 4279 1877 196 640 0 3635 0
Current children cumulated CPU time (s) 47.57
Current children cumulated vsize (KiB) 17116

Child status: 0
Real time (s): 47.6377
CPU time (s): 47.6228
CPU user time (s): 47.5118
CPU system time (s): 0.110983
CPU usage (%): 99.9687
Max. virtual memory (cumulated for all children) (KiB): 17116

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 47.5118
system time used= 0.110983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1897
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= 123

runsolver used 0.06199 second user time and 0.117982 second system time

The end

Launcher Data 

Begin job on node8 at 2009-06-16 03:27:32
IDJOB=1877279
IDBENCH=1208
IDSOLVER=699
FILE ID=node8/1877279-1245115652
PBS_JOBID= 9363662
Free space on /tmp= 66316 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111222257.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877279-1245115652/watcher-1877279-1245115652 -o /tmp/evaluation-result-1877279-1245115652/solver-1877279-1245115652 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877279-1245115652.opb

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

MD5SUM BENCH= 55dd7a9523449c2d998334f2315a7996
RANDOM SEED=85188491

node8.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        894064 kB
Buffers:         89148 kB
Cached:         962808 kB
SwapCached:        140 kB
Active:         124752 kB
Inactive:       942120 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        894064 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3948 kB
Writeback:           0 kB
Mapped:          24592 kB
Slab:            80744 kB
Committed_AS:   153200 kB
PageTables:       1376 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= 66312 MiB
End job on node8 at 2009-06-16 03:28:20