Trace number 1880160

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 3.1 pbUNSAT 70.4473 70.4723

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110967142.opb
MD5SUMbf3ef0de19a9022f2739cc274dcb4ec9
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 benchmark3.13552
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 1145
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: Generic Pseudo-Boolean 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-1880160-1245115782.opb
0.00/0.00	c File size is 9896 bytes.
0.00/0.00	c Highest Coefficient sum: 1145
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: 0.005 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      879    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
70.36/70.46	c      100    169      299    20520   68    11895    2820    200   1694 0.06
70.36/70.46	c      252    169      593    48903   82    26559    3103    494   1223 0.21
70.36/70.46	c      478    169     1014    87793   86    45883    3414    915    852 0.56
70.36/70.46	c      818    169     1677   147419   87    70745    3756   1578    609 1.34
70.36/70.46	c     1327    169     2656   242242   91   105379    4132   2557    411 3.22
70.36/70.46	c     2091    169     4052   371262   91   150602    4546   3953    267 7.82
70.36/70.46	c     3237    169     3768   355709   94   133650    5001   3669    164 19.62
70.36/70.46	c     4960    169     4349   435631  100   154241    5502   4250    132 37.51
70.36/70.46	c Backtracks by Clause: 5993
70.36/70.46	c Backtracks by PB constraint: 470
70.36/70.47	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
70.36/70.47	c    8     7320    957     9568     3007   291010   2908    103 70.44
70.36/70.47	s UNSATISFIABLE
70.36/70.47	c Total time: 70.443 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-1880160-1245115782/watcher-1880160-1245115782 -o /tmp/evaluation-result-1880160-1245115782/solver-1880160-1245115782 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880160-1245115782.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: 0.97 0.97 1.04 3/64 4273
/proc/meminfo: memFree=1282552/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=10708 CPUtime=0
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179175052 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 2677 239 188 640 0 2033 0

[startup+0.0400121 s]
/proc/loadavg: 0.97 0.97 1.04 3/64 4273
/proc/meminfo: memFree=1282552/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=11100 CPUtime=0.03
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 363 0 0 0 3 0 0 0 18 0 1 0 179175052 11366400 344 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 2775 344 196 640 0 2131 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 11100

[startup+0.102019 s]
/proc/loadavg: 0.97 0.97 1.04 3/64 4273
/proc/meminfo: memFree=1282552/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=11492 CPUtime=0.09
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 463 0 0 0 9 0 0 0 18 0 1 0 179175052 11767808 444 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 2873 444 197 640 0 2229 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11492

[startup+0.301041 s]
/proc/loadavg: 0.97 0.97 1.04 3/64 4273
/proc/meminfo: memFree=1282552/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=12268 CPUtime=0.29
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 663 0 0 0 29 0 0 0 19 0 1 0 179175052 12562432 644 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 3067 644 197 640 0 2423 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12268

[startup+0.702084 s]
/proc/loadavg: 0.97 0.97 1.04 3/64 4273
/proc/meminfo: memFree=1282552/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=13192 CPUtime=0.69
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 900 0 0 0 69 0 0 0 22 0 1 0 179175052 13508608 881 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 3298 881 197 640 0 2654 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13192

[startup+1.50117 s]
/proc/loadavg: 0.97 0.97 1.04 2/65 4274
/proc/meminfo: memFree=1279216/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=14492 CPUtime=1.49
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 1239 0 0 0 149 0 0 0 25 0 1 0 179175052 14839808 1220 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 3623 1220 197 640 0 2979 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14492

[startup+3.10135 s]
/proc/loadavg: 0.97 0.97 1.04 2/65 4274
/proc/meminfo: memFree=1277488/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=16308 CPUtime=3.09
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 1679 0 0 0 308 1 0 0 25 0 1 0 179175052 16699392 1660 1992294400 134512640 137136520 4294956256 18446744073709551615 134543927 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 4077 1660 197 640 0 3433 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16308

[startup+6.3017 s]
/proc/loadavg: 0.98 0.97 1.04 2/65 4274
/proc/meminfo: memFree=1274992/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=18252 CPUtime=6.29
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 2168 0 0 0 628 1 0 0 25 0 1 0 179175052 18690048 2149 1992294400 134512640 137136520 4294956256 18446744073709551615 134544425 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 4563 2149 197 640 0 3919 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18252

[startup+12.7014 s]
/proc/loadavg: 0.98 0.97 1.04 2/65 4274
/proc/meminfo: memFree=1272112/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=20608 CPUtime=12.68
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 2765 0 0 0 1266 2 0 0 25 0 1 0 179175052 21102592 2746 1992294400 134512640 137136520 4294956256 18446744073709551615 134540859 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 5152 2746 197 640 0 4508 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 20608

[startup+25.5018 s]
/proc/loadavg: 0.98 0.97 1.04 2/65 4274
/proc/meminfo: memFree=1271664/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=21252 CPUtime=25.48
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 2900 0 0 0 2546 2 0 0 25 0 1 0 179175052 21762048 2881 1992294400 134512640 137136520 4294956256 18446744073709551615 134544437 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 5313 2881 197 640 0 4669 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 21252

[startup+51.1016 s]
/proc/loadavg: 0.99 0.97 1.03 2/65 4274
/proc/meminfo: memFree=1269808/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=22940 CPUtime=51.07
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 3329 0 0 0 5104 3 0 0 25 0 1 0 179175052 23490560 3310 1992294400 134512640 137136520 4294956256 18446744073709551615 134544010 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 5735 3310 197 640 0 5091 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 22940

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

[startup+63.9011 s]
/proc/loadavg: 0.99 0.97 1.03 2/65 4274
/proc/meminfo: memFree=1269872/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=22940 CPUtime=63.86
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 3329 0 0 0 6383 3 0 0 25 0 1 0 179175052 23490560 3310 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 5735 3310 197 640 0 5091 0
Current children cumulated CPU time (s) 63.86
Current children cumulated vsize (KiB) 22940

[startup+67.1054 s]
/proc/loadavg: 0.99 0.97 1.03 2/65 4274
/proc/meminfo: memFree=1269872/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=22940 CPUtime=67.07
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 3329 0 0 0 6704 3 0 0 25 0 1 0 179175052 23490560 3310 1992294400 134512640 137136520 4294956256 18446744073709551615 134540856 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 5735 3310 197 640 0 5091 0
Current children cumulated CPU time (s) 67.07
Current children cumulated vsize (KiB) 22940

[startup+68.7016 s]
/proc/loadavg: 0.99 0.97 1.03 2/65 4274
/proc/meminfo: memFree=1269872/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=22940 CPUtime=68.66
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 3329 0 0 0 6863 3 0 0 25 0 1 0 179175052 23490560 3310 1992294400 134512640 137136520 4294956256 18446744073709551615 134540856 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 5735 3310 197 640 0 5091 0
Current children cumulated CPU time (s) 68.66
Current children cumulated vsize (KiB) 22940

[startup+69.5027 s]
/proc/loadavg: 0.99 0.97 1.03 2/65 4274
/proc/meminfo: memFree=1269872/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=22940 CPUtime=69.46
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 3329 0 0 0 6943 3 0 0 25 0 1 0 179175052 23490560 3310 1992294400 134512640 137136520 4294956256 18446744073709551615 134540859 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 5735 3310 197 640 0 5091 0
Current children cumulated CPU time (s) 69.46
Current children cumulated vsize (KiB) 22940

[startup+69.9017 s]
/proc/loadavg: 0.99 0.97 1.03 2/65 4274
/proc/meminfo: memFree=1269872/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=22940 CPUtime=69.86
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 3329 0 0 0 6983 3 0 0 25 0 1 0 179175052 23490560 3310 1992294400 134512640 137136520 4294956256 18446744073709551615 134540856 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 5735 3310 197 640 0 5091 0
Current children cumulated CPU time (s) 69.86
Current children cumulated vsize (KiB) 22940

[startup+70.3018 s]
/proc/loadavg: 0.99 0.97 1.03 2/65 4274
/proc/meminfo: memFree=1269872/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=22940 CPUtime=70.27
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 3329 0 0 0 7024 3 0 0 25 0 1 0 179175052 23490560 3310 1992294400 134512640 137136520 4294956256 18446744073709551615 134544249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 5735 3310 197 640 0 5091 0
Current children cumulated CPU time (s) 70.27
Current children cumulated vsize (KiB) 22940

[startup+70.4048 s]
/proc/loadavg: 0.99 0.97 1.03 2/65 4274
/proc/meminfo: memFree=1269872/2055920 swapFree=4192812/4192956
[pid=4273] ppid=4271 vsize=22940 CPUtime=70.36
/proc/4273/stat : 4273 (bsolo) R 4271 4273 3762 0 -1 4194304 3329 0 0 0 7033 3 0 0 25 0 1 0 179175052 23490560 3310 1992294400 134512640 137136520 4294956256 18446744073709551615 134543948 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4273/statm: 5735 3310 197 640 0 5091 0
Current children cumulated CPU time (s) 70.36
Current children cumulated vsize (KiB) 22940

Child status: 0
Real time (s): 70.4723
CPU time (s): 70.4473
CPU user time (s): 70.4053
CPU system time (s): 0.041993
CPU usage (%): 99.9644
Max. virtual memory (cumulated for all children) (KiB): 22940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 70.4053
system time used= 0.041993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3330
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= 80

runsolver used 0.051992 second user time and 0.154976 second system time

The end

Launcher Data 

Begin job on node42 at 2009-06-16 03:29:42
IDJOB=1880160
IDBENCH=1229
IDSOLVER=701
FILE ID=node42/1880160-1245115782
PBS_JOBID= 9363655
Free space on /tmp= 66148 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110967142.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880160-1245115782/watcher-1880160-1245115782 -o /tmp/evaluation-result-1880160-1245115782/solver-1880160-1245115782 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880160-1245115782.opb

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

MD5SUM BENCH= bf3ef0de19a9022f2739cc274dcb4ec9
RANDOM SEED=644986080

node42.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:       1282968 kB
Buffers:         38092 kB
Cached:         644760 kB
SwapCached:        140 kB
Active:         110380 kB
Inactive:       586484 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1282968 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4116 kB
Writeback:           0 kB
Mapped:          23736 kB
Slab:            62100 kB
Committed_AS:   156860 kB
PageTables:       1392 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= 66144 MiB
End job on node42 at 2009-06-16 03:30:53