Trace number 1877312

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 57.7852 57.8002

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110968094.opb
MD5SUM940d71bbc0c42e33ba6204f0b827ce80
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 benchmark0.398939
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 1242
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-1877312-1245115841.opb
0.00/0.00	c File size is 9909 bytes.
0.00/0.00	c Highest Coefficient sum: 1242
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.002 s
0.00/0.00	c Var: 169 Constr: 101 30/70/1 Lit: 1205 Watch. Lit: 899
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.007 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.
57.67/57.79	c      102    169      204     4483   21     1099    2820    105   3923 0.03
57.67/57.79	c      252    169      358     9822   27     1413    3103    259   4344 0.06
57.67/57.79	c      480    169      593    16118   27     1887    3414    494   4403 0.11
57.67/57.79	c      821    169      953    27579   28     2605    3756    854   4390 0.19
57.67/57.79	c     1330    169     1479    42978   29     3659    4132   1380   3866 0.34
57.67/57.79	c     2093    169     2269    65575   28     5237    4546   2170   3476 0.60
57.67/57.79	c     3240    169     3457   100306   29     7618    5001   3358   3022 1.07
57.67/57.79	c     4961    169     2631    78380   29     5966    5502   2532   2480 2.00
57.67/57.79	c     7550    169     5290   167629   31    11291    6053   5191   2276 3.32
57.67/57.79	c    11430    169     3127    93678   29     6971    6659   3028   2022 5.65
57.67/57.79	c    17255    169     5731   212672   37    12172    7325   5632   1854 9.30
57.67/57.79	c    25992    169     7302   303484   41    15335    8058   7203   1568 16.57
57.67/57.79	c    39102    169     4458   176384   39     9619    8864   4359   1381 28.30
57.67/57.79	c    58774    169     6698   239085   35    14143    9751   6599   1278 45.95
57.67/57.79	c Backtracks by Clause: 71179
57.67/57.79	c Backtracks by PB constraint: 25
57.67/57.79	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
57.67/57.79	c   14    71204  19480   113815     9635   322251   9536   1232 57.78
57.67/57.79	s UNSATISFIABLE
57.67/57.79	c Total time: 57.783 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-1877312-1245115841/watcher-1877312-1245115841 -o /tmp/evaluation-result-1877312-1245115841/solver-1877312-1245115841 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877312-1245115841.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 1.02 3/64 31770
/proc/meminfo: memFree=1832224/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=10708 CPUtime=0
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179184350 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 2677 239 188 640 0 2033 0

[startup+0.00814611 s]
/proc/loadavg: 1.00 1.00 1.02 3/64 31770
/proc/meminfo: memFree=1832224/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=10708 CPUtime=0
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 271 0 0 0 0 0 0 0 18 0 1 0 179184350 10964992 252 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 2677 252 196 640 0 2033 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 10708

[startup+0.101155 s]
/proc/loadavg: 1.00 1.00 1.02 3/64 31770
/proc/meminfo: memFree=1832224/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=10952 CPUtime=0.1
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 326 0 0 0 10 0 0 0 18 0 1 0 179184350 11214848 307 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 2738 307 196 640 0 2094 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 10952

[startup+0.301175 s]
/proc/loadavg: 1.00 1.00 1.02 3/64 31770
/proc/meminfo: memFree=1832224/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=11320 CPUtime=0.3
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 424 0 0 0 30 0 0 0 19 0 1 0 179184350 11591680 405 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 2830 405 196 640 0 2186 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 11320

[startup+0.701216 s]
/proc/loadavg: 1.00 1.00 1.02 3/64 31770
/proc/meminfo: memFree=1832224/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=11808 CPUtime=0.69
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 569 0 0 0 69 0 0 0 22 0 1 0 179184350 12091392 550 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 2952 550 196 640 0 2308 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11808

[startup+1.5013 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 31771
/proc/meminfo: memFree=1830232/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=12796 CPUtime=1.49
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 786 0 0 0 149 0 0 0 25 0 1 0 179184350 13103104 767 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 3199 767 196 640 0 2555 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12796

[startup+3.10246 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 31771
/proc/meminfo: memFree=1829080/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=13172 CPUtime=3.09
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 910 0 0 0 308 1 0 0 25 0 1 0 179184350 13488128 891 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 3293 891 196 640 0 2649 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13172

[startup+6.30178 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 31771
/proc/meminfo: memFree=1828376/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=13912 CPUtime=6.29
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 1082 0 0 0 627 2 0 0 25 0 1 0 179184350 14245888 1063 1992294400 134512640 137136520 4294956256 18446744073709551615 134544157 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 3478 1063 196 640 0 2834 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 13912

[startup+12.7014 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 31771
/proc/meminfo: memFree=1827040/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=15256 CPUtime=12.68
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 1412 0 0 0 1265 3 0 0 25 0 1 0 179184350 15622144 1393 1992294400 134512640 137136520 4294956256 18446744073709551615 135982492 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 3814 1393 196 640 0 3170 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 15256

[startup+25.5017 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 31771
/proc/meminfo: memFree=1826272/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=15988 CPUtime=25.49
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 1600 0 0 0 2543 6 0 0 25 0 1 0 179184350 16371712 1581 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 3997 1581 196 640 0 3353 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 15988

[startup+51.1013 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 31771
/proc/meminfo: memFree=1825824/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=16476 CPUtime=51.08
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 1719 0 0 0 5097 11 0 0 25 0 1 0 179184350 16871424 1700 1992294400 134512640 137136520 4294956256 18446744073709551615 134544116 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 4119 1700 196 640 0 3475 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 16476

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

[startup+54.3026 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 31771
/proc/meminfo: memFree=1825760/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=16476 CPUtime=54.28
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 1735 0 0 0 5417 11 0 0 25 0 1 0 179184350 16871424 1716 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 4119 1716 196 640 0 3475 0
Current children cumulated CPU time (s) 54.28
Current children cumulated vsize (KiB) 16476

[startup+55.9018 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 31771
/proc/meminfo: memFree=1825760/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=16476 CPUtime=55.88
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 1735 0 0 0 5577 11 0 0 25 0 1 0 179184350 16871424 1716 1992294400 134512640 137136520 4294956256 18446744073709551615 134543974 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 4119 1716 196 640 0 3475 0
Current children cumulated CPU time (s) 55.88
Current children cumulated vsize (KiB) 16476

[startup+56.7019 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 31771
/proc/meminfo: memFree=1825760/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=16476 CPUtime=56.67
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 1735 0 0 0 5656 11 0 0 25 0 1 0 179184350 16871424 1716 1992294400 134512640 137136520 4294956256 18446744073709551615 134543822 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 4119 1716 196 640 0 3475 0
Current children cumulated CPU time (s) 56.67
Current children cumulated vsize (KiB) 16476

[startup+57.502 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 31771
/proc/meminfo: memFree=1825760/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=16476 CPUtime=57.47
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 1735 0 0 0 5736 11 0 0 25 0 1 0 179184350 16871424 1716 1992294400 134512640 137136520 4294956256 18446744073709551615 136518854 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 4119 1716 196 640 0 3475 0
Current children cumulated CPU time (s) 57.47
Current children cumulated vsize (KiB) 16476

[startup+57.702 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 31771
/proc/meminfo: memFree=1825760/2055920 swapFree=4182564/4192956
[pid=31770] ppid=31768 vsize=16476 CPUtime=57.67
/proc/31770/stat : 31770 (bsolo) R 31768 31770 31327 0 -1 4194304 1735 0 0 0 5756 11 0 0 25 0 1 0 179184350 16871424 1716 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31770/statm: 4119 1716 196 640 0 3475 0
Current children cumulated CPU time (s) 57.67
Current children cumulated vsize (KiB) 16476

Child status: 0
Real time (s): 57.8002
CPU time (s): 57.7852
CPU user time (s): 57.6652
CPU system time (s): 0.119981
CPU usage (%): 99.9741
Max. virtual memory (cumulated for all children) (KiB): 16476

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 57.6652
system time used= 0.119981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1736
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= 82

runsolver used 0.051992 second user time and 0.123981 second system time

The end

Launcher Data 

Begin job on node17 at 2009-06-16 03:30:41
IDJOB=1877312
IDBENCH=1241
IDSOLVER=699
FILE ID=node17/1877312-1245115841
PBS_JOBID= 9363650
Free space on /tmp= 66356 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110968094.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877312-1245115841/watcher-1877312-1245115841 -o /tmp/evaluation-result-1877312-1245115841/solver-1877312-1245115841 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877312-1245115841.opb

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

MD5SUM BENCH= 940d71bbc0c42e33ba6204f0b827ce80
RANDOM SEED=1713857235

node17.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		: 3000.214
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		: 3000.214
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:       1832640 kB
Buffers:          9988 kB
Cached:         142120 kB
SwapCached:       4224 kB
Active:          44524 kB
Inactive:       115416 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1832640 kB
SwapTotal:     4192956 kB
SwapFree:      4182564 kB
Dirty:            3948 kB
Writeback:           0 kB
Mapped:          13688 kB
Slab:            49316 kB
Committed_AS:   151800 kB
PageTables:       1456 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= 66352 MiB
End job on node17 at 2009-06-16 03:31:39