Trace number 1880193

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 58.0652 58.082

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111216411.opb
MD5SUM397157a6f828ea3df1ef5823bec1442b
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 benchmark0.377942
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 1200
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-1880193-1245115925.opb
0.00/0.00	c File size is 9904 bytes.
0.00/0.00	c Highest Coefficient sum: 1200
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      880    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
57.97/58.07	c      101    169      300    21644   72    11517    2820    201   1803 0.06
57.97/58.07	c      251    169      574    47541   82    22864    3103    475   1248 0.20
57.97/58.07	c      477    169      975    85557   87    39713    3414    876    868 0.55
57.97/58.07	c      815    169     1571   141125   89    61584    3756   1472    625 1.30
57.97/58.07	c     1324    169     2497   229814   92    93414    4132   2398    428 3.09
57.97/58.07	c     2089    169     3869   366577   94   133007    4546   3770    283 7.37
57.97/58.07	c     3237    169     3541   336816   95   125162    5001   3442    184 17.54
57.97/58.07	c     4958    169     3965   391012   98   134476    5502   3866    143 34.45
57.97/58.07	c Backtracks by Clause: 5269
57.97/58.07	c Backtracks by PB constraint: 420
57.97/58.07	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
57.97/58.07	c    8     7299    922     9333     5065   481466   4966    125 58.06
57.97/58.07	s UNSATISFIABLE
57.97/58.07	c Total time: 58.061 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-1880193-1245115925/watcher-1880193-1245115925 -o /tmp/evaluation-result-1880193-1245115925/solver-1880193-1245115925 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880193-1245115925.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 32681
/proc/meminfo: memFree=1084920/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=10708 CPUtime=0
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179189839 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 2677 239 188 640 0 2033 0

[startup+0.039935 s]
/proc/loadavg: 1.00 1.00 1.02 3/64 32681
/proc/meminfo: memFree=1084920/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=11100 CPUtime=0.03
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 366 0 0 0 3 0 0 0 18 0 1 0 179189839 11366400 347 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 2775 347 196 640 0 2131 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 11100

[startup+0.101941 s]
/proc/loadavg: 1.00 1.00 1.02 3/64 32681
/proc/meminfo: memFree=1084920/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=11488 CPUtime=0.09
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 461 0 0 0 9 0 0 0 18 0 1 0 179189839 11763712 442 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 2872 442 197 640 0 2228 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11488

[startup+0.30196 s]
/proc/loadavg: 1.00 1.00 1.02 3/64 32681
/proc/meminfo: memFree=1084920/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=12132 CPUtime=0.29
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 620 0 0 0 29 0 0 0 19 0 1 0 179189839 12423168 601 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 3033 601 197 640 0 2389 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12132

[startup+0.701999 s]
/proc/loadavg: 1.00 1.00 1.02 3/64 32681
/proc/meminfo: memFree=1084920/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=13048 CPUtime=0.69
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 852 0 0 0 69 0 0 0 22 0 1 0 179189839 13361152 833 1992294400 134512640 137136520 4294956256 18446744073709551615 136509131 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 3262 833 197 640 0 2618 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13048

[startup+1.50108 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 32682
/proc/meminfo: memFree=1081840/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=14348 CPUtime=1.49
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 1180 0 0 0 149 0 0 0 25 0 1 0 179189839 14692352 1161 1992294400 134512640 137136520 4294956256 18446744073709551615 134543942 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 3587 1161 197 640 0 2943 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14348

[startup+3.10124 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 32682
/proc/meminfo: memFree=1080112/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=15908 CPUtime=3.09
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 1590 0 0 0 308 1 0 0 25 0 1 0 179189839 16289792 1571 1992294400 134512640 137136520 4294956256 18446744073709551615 134544148 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 3977 1571 197 640 0 3333 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 15908

[startup+6.30156 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 32682
/proc/meminfo: memFree=1077488/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=18012 CPUtime=6.29
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 2121 0 0 0 627 2 0 0 25 0 1 0 179189839 18444288 2102 1992294400 134512640 137136520 4294956256 18446744073709551615 134607060 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 4503 2102 197 640 0 3859 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18012

[startup+12.7012 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 32682
/proc/meminfo: memFree=1074416/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=20612 CPUtime=12.68
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 2747 0 0 0 1266 2 0 0 25 0 1 0 179189839 21106688 2728 1992294400 134512640 137136520 4294956256 18446744073709551615 134540859 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 5153 2728 197 640 0 4509 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 20612

[startup+25.5015 s]
/proc/loadavg: 1.00 1.00 1.02 2/65 32682
/proc/meminfo: memFree=1073776/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=21264 CPUtime=25.48
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 2917 0 0 0 2545 3 0 0 25 0 1 0 179189839 21774336 2898 1992294400 134512640 137136520 4294956256 18446744073709551615 134574992 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 5316 2898 197 640 0 4672 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 21264

[startup+51.102 s]
/proc/loadavg: 1.00 1.00 1.01 2/65 32682
/proc/meminfo: memFree=1072432/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=22432 CPUtime=51.07
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 3226 0 0 0 5103 4 0 0 25 0 1 0 179189839 22970368 3207 1992294400 134512640 137136520 4294956256 18446744073709551615 136295552 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 5608 3207 197 640 0 4964 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 22432

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

[startup+54.3013 s]
/proc/loadavg: 1.00 1.00 1.01 2/65 32682
/proc/meminfo: memFree=1072496/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=22432 CPUtime=54.27
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 3226 0 0 0 5423 4 0 0 25 0 1 0 179189839 22970368 3207 1992294400 134512640 137136520 4294956256 18446744073709551615 134544116 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 5608 3207 197 640 0 4964 0
Current children cumulated CPU time (s) 54.27
Current children cumulated vsize (KiB) 22432

[startup+55.9025 s]
/proc/loadavg: 1.00 1.00 1.01 2/65 32682
/proc/meminfo: memFree=1072496/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=22432 CPUtime=55.87
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 3226 0 0 0 5583 4 0 0 25 0 1 0 179189839 22970368 3207 1992294400 134512640 137136520 4294956256 18446744073709551615 134543927 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 5608 3207 197 640 0 4964 0
Current children cumulated CPU time (s) 55.87
Current children cumulated vsize (KiB) 22432

[startup+56.7016 s]
/proc/loadavg: 1.00 1.00 1.01 2/65 32682
/proc/meminfo: memFree=1072496/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=22432 CPUtime=56.67
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 3226 0 0 0 5663 4 0 0 25 0 1 0 179189839 22970368 3207 1992294400 134512640 137136520 4294956256 18446744073709551615 134543884 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 5608 3207 197 640 0 4964 0
Current children cumulated CPU time (s) 56.67
Current children cumulated vsize (KiB) 22432

[startup+57.5016 s]
/proc/loadavg: 1.00 1.00 1.01 2/65 32682
/proc/meminfo: memFree=1072496/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=22432 CPUtime=57.47
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 3226 0 0 0 5743 4 0 0 25 0 1 0 179189839 22970368 3207 1992294400 134512640 137136520 4294956256 18446744073709551615 134543933 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 5608 3207 197 640 0 4964 0
Current children cumulated CPU time (s) 57.47
Current children cumulated vsize (KiB) 22432

[startup+57.9017 s]
/proc/loadavg: 1.00 1.00 1.01 2/65 32682
/proc/meminfo: memFree=1072496/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=22432 CPUtime=57.87
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 3226 0 0 0 5783 4 0 0 25 0 1 0 179189839 22970368 3207 1992294400 134512640 137136520 4294956256 18446744073709551615 134543927 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 5608 3207 197 640 0 4964 0
Current children cumulated CPU time (s) 57.87
Current children cumulated vsize (KiB) 22432

[startup+58.0017 s]
/proc/loadavg: 1.00 1.00 1.01 2/65 32682
/proc/meminfo: memFree=1072496/2055920 swapFree=4192812/4192956
[pid=32681] ppid=32679 vsize=22432 CPUtime=57.97
/proc/32681/stat : 32681 (bsolo) R 32679 32681 31844 0 -1 4194304 3226 0 0 0 5793 4 0 0 25 0 1 0 179189839 22970368 3207 1992294400 134512640 137136520 4294956256 18446744073709551615 136509008 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32681/statm: 5608 3207 197 640 0 4964 0
Current children cumulated CPU time (s) 57.97
Current children cumulated vsize (KiB) 22432

Child status: 0
Real time (s): 58.082
CPU time (s): 58.0652
CPU user time (s): 58.0142
CPU system time (s): 0.050992
CPU usage (%): 99.9711
Max. virtual memory (cumulated for all children) (KiB): 22432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 58.0142
system time used= 0.050992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3227
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= 61

runsolver used 0.046992 second user time and 0.13098 second system time

The end

Launcher Data 

Begin job on node36 at 2009-06-16 03:32:05
IDJOB=1880193
IDBENCH=1262
IDSOLVER=701
FILE ID=node36/1880193-1245115925
PBS_JOBID= 9363652
Free space on /tmp= 66200 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111216411.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880193-1245115925/watcher-1880193-1245115925 -o /tmp/evaluation-result-1880193-1245115925/solver-1880193-1245115925 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880193-1245115925.opb

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

MD5SUM BENCH= 397157a6f828ea3df1ef5823bec1442b
RANDOM SEED=1832618074

node36.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		: 3000.230
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		: 3000.230
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:       1085336 kB
Buffers:         32852 kB
Cached:         872908 kB
SwapCached:          0 kB
Active:          71020 kB
Inactive:       848608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1085336 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3952 kB
Writeback:           0 kB
Mapped:          23704 kB
Slab:            36988 kB
Committed_AS:   159256 kB
PageTables:       1360 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= 66196 MiB
End job on node36 at 2009-06-16 03:33:03