Trace number 1877318

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 36.5634 36.5744

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111226368.opb
MD5SUMb01ebef74b04e5bd139a4b864d0981a6
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 benchmark0.085986
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 1270
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-1877318-1245115866.opb
0.00/0.00	c File size is 9909 bytes.
0.00/0.00	c Highest Coefficient sum: 1270
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: 901
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      881    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
36.48/36.57	c      102    169      208     4692   22     1109    2820    109   4080 0.03
36.48/36.57	c      253    169      364     8940   24     1420    3103    265   4600 0.06
36.48/36.57	c      483    169      596    14444   24     1884    3414    497   4689 0.10
36.48/36.57	c      823    169      948    24061   25     2588    3756    849   4448 0.18
36.48/36.57	c     1332    169     1472    40166   27     3638    4132   1373   3976 0.34
36.48/36.57	c     2096    169     2269    63775   28     5231    4546   2170   3558 0.59
36.48/36.57	c     3242    169     3452   100693   29     7602    5001   3353   2947 1.10
36.48/36.57	c     4964    169     2620    81137   30     5934    5502   2521   2473 2.01
36.48/36.57	c     7548    169     5282   171605   32    11268    6053   5183   2270 3.33
36.48/36.57	c    11428    169     3127   112027   35     6962    6659   3028   1964 5.82
36.48/36.57	c    17252    169     5738   199568   34    12207    7325   5639   1822 9.47
36.48/36.57	c    25990    169     7265   249948   34    15247    8058   7166   1684 15.43
36.48/36.57	c    39100    169     4320   169930   39     9354    8864   4221   1502 26.03
36.48/36.57	c Backtracks by Clause: 50281
36.48/36.57	c Backtracks by PB constraint: 27
36.48/36.57	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
36.48/36.57	c   13    50308  13977    81143     6893   250777   6794   1376 36.56
36.48/36.57	s UNSATISFIABLE
36.48/36.57	c Total time: 36.561 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-1877318-1245115866/watcher-1877318-1245115866 -o /tmp/evaluation-result-1877318-1245115866/solver-1877318-1245115866 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877318-1245115866.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 1.05 3/64 2098
/proc/meminfo: memFree=1422280/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=10708 CPUtime=0
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 258 0 0 0 0 0 0 0 20 0 1 0 179186287 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 2677 239 188 640 0 2033 0

[startup+0.0357479 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 2098
/proc/meminfo: memFree=1422280/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=10708 CPUtime=0.03
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 289 0 0 0 3 0 0 0 20 0 1 0 179186287 10964992 270 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 2677 270 196 640 0 2033 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 10708

[startup+0.102753 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 2098
/proc/meminfo: memFree=1422280/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=10828 CPUtime=0.1
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 324 0 0 0 10 0 0 0 20 0 1 0 179186287 11087872 305 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 2707 305 196 640 0 2063 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 10828

[startup+0.301773 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 2098
/proc/meminfo: memFree=1422280/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=11200 CPUtime=0.29
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 417 0 0 0 29 0 0 0 22 0 1 0 179186287 11468800 398 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 2800 398 196 640 0 2156 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11200

[startup+0.702814 s]
/proc/loadavg: 1.00 1.00 1.05 3/64 2098
/proc/meminfo: memFree=1422280/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=11816 CPUtime=0.69
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 560 0 0 0 69 0 0 0 25 0 1 0 179186287 12099584 541 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 2954 541 196 640 0 2310 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11816

[startup+1.50189 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2099
/proc/meminfo: memFree=1420544/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=12680 CPUtime=1.49
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 784 0 0 0 148 1 0 0 25 0 1 0 179186287 12984320 765 1992294400 134512640 137136520 4294956256 18446744073709551615 135982525 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 3170 765 196 640 0 2526 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12680

[startup+3.10106 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2099
/proc/meminfo: memFree=1419392/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=13288 CPUtime=3.09
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 914 0 0 0 308 1 0 0 25 0 1 0 179186287 13606912 895 1992294400 134512640 137136520 4294956256 18446744073709551615 134551589 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 3322 895 196 640 0 2678 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13288

[startup+6.30138 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2099
/proc/meminfo: memFree=1418504/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=14144 CPUtime=6.29
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 1148 0 0 0 626 3 0 0 25 0 1 0 179186287 14483456 1129 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 3536 1129 196 640 0 2892 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 14144

[startup+12.701 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2099
/proc/meminfo: memFree=1417544/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=14856 CPUtime=12.68
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 1307 0 0 0 1265 3 0 0 25 0 1 0 179186287 15212544 1288 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 3714 1288 196 640 0 3070 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 14856

[startup+25.5013 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2099
/proc/meminfo: memFree=1416840/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=15576 CPUtime=25.48
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 1487 0 0 0 2542 6 0 0 25 0 1 0 179186287 15949824 1468 1992294400 134512640 137136520 4294956256 18446744073709551615 136500521 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 3894 1468 196 640 0 3250 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 15576

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

[startup+31.906 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2099
/proc/meminfo: memFree=1415944/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=16432 CPUtime=31.89
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 1718 0 0 0 3181 8 0 0 25 0 1 0 179186287 16826368 1699 1992294400 134512640 137136520 4294956256 18446744073709551615 134551130 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 4108 1699 196 640 0 3464 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 16432

[startup+35.1023 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2099
/proc/meminfo: memFree=1415880/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=16552 CPUtime=35.08
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 1752 0 0 0 3500 8 0 0 25 0 1 0 179186287 16949248 1733 1992294400 134512640 137136520 4294956256 18446744073709551615 134572147 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 4138 1733 196 640 0 3494 0
Current children cumulated CPU time (s) 35.08
Current children cumulated vsize (KiB) 16552

[startup+35.9014 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2099
/proc/meminfo: memFree=1415880/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=16552 CPUtime=35.88
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 1752 0 0 0 3580 8 0 0 25 0 1 0 179186287 16949248 1733 1992294400 134512640 137136520 4294956256 18446744073709551615 134543933 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 4138 1733 196 640 0 3494 0
Current children cumulated CPU time (s) 35.88
Current children cumulated vsize (KiB) 16552

[startup+36.3054 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2099
/proc/meminfo: memFree=1415880/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=16552 CPUtime=36.28
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 1752 0 0 0 3620 8 0 0 25 0 1 0 179186287 16949248 1733 1992294400 134512640 137136520 4294956256 18446744073709551615 134544480 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 4138 1733 196 640 0 3494 0
Current children cumulated CPU time (s) 36.28
Current children cumulated vsize (KiB) 16552

[startup+36.5014 s]
/proc/loadavg: 1.00 1.00 1.05 2/65 2099
/proc/meminfo: memFree=1415880/2055920 swapFree=4192812/4192956
[pid=2098] ppid=2096 vsize=16552 CPUtime=36.48
/proc/2098/stat : 2098 (bsolo) R 2096 2098 1525 0 -1 4194304 1752 0 0 0 3640 8 0 0 25 0 1 0 179186287 16949248 1733 1992294400 134512640 137136520 4294956256 18446744073709551615 134544256 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2098/statm: 4138 1733 196 640 0 3494 0
Current children cumulated CPU time (s) 36.48
Current children cumulated vsize (KiB) 16552

Child status: 0
Real time (s): 36.5744
CPU time (s): 36.5634
CPU user time (s): 36.4725
CPU system time (s): 0.090986
CPU usage (%): 99.9701
Max. virtual memory (cumulated for all children) (KiB): 16552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 36.4725
system time used= 0.090986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1753
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= 55

runsolver used 0.034994 second user time and 0.106983 second system time

The end

Launcher Data 

Begin job on node27 at 2009-06-16 03:31:06
IDJOB=1877318
IDBENCH=1247
IDSOLVER=699
FILE ID=node27/1877318-1245115866
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-t2001.13queen13.1111226368.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877318-1245115866/watcher-1877318-1245115866 -o /tmp/evaluation-result-1877318-1245115866/solver-1877318-1245115866 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877318-1245115866.opb

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

MD5SUM BENCH= b01ebef74b04e5bd139a4b864d0981a6
RANDOM SEED=285603908

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:       1422696 kB
Buffers:         63328 kB
Cached:         486244 kB
SwapCached:        140 kB
Active:         141056 kB
Inactive:       423044 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1422696 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4164 kB
Writeback:           0 kB
Mapped:          24204 kB
Slab:            54956 kB
Committed_AS:   145440 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 03:31:43