Trace number 1880175

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 15.8766 15.8807

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111221624.opb
MD5SUM1cbab9bec076c91ef9a04fed1aa2ec63
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 benchmark1.11783
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 1248
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-1880175-1245115854.opb
0.00/0.00	c File size is 9904 bytes.
0.00/0.00	c Highest Coefficient sum: 1248
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      880    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
15.79/15.87	c      100    169      298    20311   68    12725    2820    199   1785 0.06
15.79/15.87	c      250    169      589    48329   82    27987    3103    490   1381 0.18
15.79/15.87	c      477    169     1015    87537   86    46358    3414    916    915 0.52
15.79/15.87	c      815    169     1649   147404   89    75621    3756   1550    658 1.24
15.79/15.87	c     1324    169     2591   238547   92   107781    4132   2492    475 2.78
15.79/15.87	c     2087    169     4020   381819   94   159713    4546   3921    332 6.28
15.79/15.87	c Backtracks by Clause: 2488
15.79/15.87	c Backtracks by PB constraint: 242
15.79/15.87	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
15.79/15.87	c    6     3106    444     4063     3500   328201   3401    195 15.87
15.79/15.87	s UNSATISFIABLE
15.79/15.87	c Total time: 15.873 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-1880175-1245115854/watcher-1880175-1245115854 -o /tmp/evaluation-result-1880175-1245115854/solver-1880175-1245115854 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880175-1245115854.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: 0.92 0.98 1.06 2/64 1196
/proc/meminfo: memFree=1419176/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=10708 CPUtime=0
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 271 0 0 0 0 0 0 0 18 0 1 0 179186506 10964992 252 1992294400 134512640 137136520 4294956256 18446744073709551615 134544402 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 2677 252 196 640 0 2033 0

[startup+0.0801599 s]
/proc/loadavg: 0.92 0.98 1.06 2/64 1196
/proc/meminfo: memFree=1419176/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=11364 CPUtime=0.07
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 445 0 0 0 7 0 0 0 18 0 1 0 179186506 11636736 426 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 2841 426 197 640 0 2197 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 11364

[startup+0.101162 s]
/proc/loadavg: 0.92 0.98 1.06 2/64 1196
/proc/meminfo: memFree=1419176/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=11496 CPUtime=0.09
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 479 0 0 0 9 0 0 0 18 0 1 0 179186506 11771904 460 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 2874 460 197 640 0 2230 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11496

[startup+0.301185 s]
/proc/loadavg: 0.92 0.98 1.06 2/64 1196
/proc/meminfo: memFree=1419176/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=12272 CPUtime=0.29
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 686 0 0 0 29 0 0 0 19 0 1 0 179186506 12566528 667 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 3068 667 197 640 0 2424 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12272

[startup+0.701232 s]
/proc/loadavg: 0.92 0.98 1.06 2/64 1196
/proc/meminfo: memFree=1419176/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=13444 CPUtime=0.69
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 948 0 0 0 69 0 0 0 22 0 1 0 179186506 13766656 929 1992294400 134512640 137136520 4294956256 18446744073709551615 134543974 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 3361 929 197 640 0 2717 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13444

[startup+1.50133 s]
/proc/loadavg: 0.92 0.98 1.06 2/65 1197
/proc/meminfo: memFree=1415712/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=14744 CPUtime=1.49
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 1283 0 0 0 148 1 0 0 25 0 1 0 179186506 15097856 1264 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 3686 1264 197 640 0 3042 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14744

[startup+3.10252 s]
/proc/loadavg: 0.92 0.98 1.06 2/65 1197
/proc/meminfo: memFree=1413856/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=16840 CPUtime=3.09
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 1806 0 0 0 308 1 0 0 25 0 1 0 179186506 17244160 1787 1992294400 134512640 137136520 4294956256 18446744073709551615 134544434 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 4210 1787 197 640 0 3566 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16840

[startup+6.30189 s]
/proc/loadavg: 0.93 0.98 1.06 3/65 1197
/proc/meminfo: memFree=1410528/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=19584 CPUtime=6.29
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 2493 0 0 0 627 2 0 0 25 0 1 0 179186506 20054016 2474 1992294400 134512640 137136520 4294956256 18446744073709551615 134544157 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 4896 2474 197 640 0 4252 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 19584

[startup+12.7016 s]
/proc/loadavg: 0.93 0.98 1.06 2/65 1197
/proc/meminfo: memFree=1408480/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=21008 CPUtime=12.69
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 2843 0 0 0 1266 3 0 0 25 0 1 0 179186506 21512192 2824 1992294400 134512640 137136520 4294956256 18446744073709551615 134544160 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 5252 2824 197 640 0 4608 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 21008

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

[startup+14.3058 s]
/proc/loadavg: 0.94 0.98 1.06 2/65 1197
/proc/meminfo: memFree=1408480/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=21008 CPUtime=14.3
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 2843 0 0 0 1427 3 0 0 25 0 1 0 179186506 21512192 2824 1992294400 134512640 137136520 4294956256 18446744073709551615 134543819 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 5252 2824 197 640 0 4608 0
Current children cumulated CPU time (s) 14.3
Current children cumulated vsize (KiB) 21008

[startup+15.1019 s]
/proc/loadavg: 0.94 0.98 1.06 2/65 1197
/proc/meminfo: memFree=1408480/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=21008 CPUtime=15.09
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 2843 0 0 0 1506 3 0 0 25 0 1 0 179186506 21512192 2824 1992294400 134512640 137136520 4294956256 18446744073709551615 135982518 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 5252 2824 197 640 0 4608 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 21008

[startup+15.502 s]
/proc/loadavg: 0.94 0.98 1.06 2/65 1197
/proc/meminfo: memFree=1408544/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=21008 CPUtime=15.49
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 2843 0 0 0 1546 3 0 0 25 0 1 0 179186506 21512192 2824 1992294400 134512640 137136520 4294956256 18446744073709551615 134543831 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 5252 2824 197 640 0 4608 0
Current children cumulated CPU time (s) 15.49
Current children cumulated vsize (KiB) 21008

[startup+15.702 s]
/proc/loadavg: 0.94 0.98 1.06 2/65 1197
/proc/meminfo: memFree=1408544/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=21008 CPUtime=15.69
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 2843 0 0 0 1566 3 0 0 25 0 1 0 179186506 21512192 2824 1992294400 134512640 137136520 4294956256 18446744073709551615 134544140 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 5252 2824 197 640 0 4608 0
Current children cumulated CPU time (s) 15.69
Current children cumulated vsize (KiB) 21008

[startup+15.802 s]
/proc/loadavg: 0.94 0.98 1.06 2/65 1197
/proc/meminfo: memFree=1408544/2055920 swapFree=4191900/4192956
[pid=1196] ppid=1194 vsize=21008 CPUtime=15.79
/proc/1196/stat : 1196 (bsolo) R 1194 1196 864 0 -1 4194304 2843 0 0 0 1576 3 0 0 25 0 1 0 179186506 21512192 2824 1992294400 134512640 137136520 4294956256 18446744073709551615 134544440 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1196/statm: 5252 2824 197 640 0 4608 0
Current children cumulated CPU time (s) 15.79
Current children cumulated vsize (KiB) 21008

Child status: 0
Real time (s): 15.8807
CPU time (s): 15.8766
CPU user time (s): 15.8416
CPU system time (s): 0.034994
CPU usage (%): 99.9738
Max. virtual memory (cumulated for all children) (KiB): 21008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.8416
system time used= 0.034994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2844
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= 31

runsolver used 0.013997 second user time and 0.042993 second system time

The end

Launcher Data 

Begin job on node1 at 2009-06-16 03:30:54
IDJOB=1880175
IDBENCH=1244
IDSOLVER=701
FILE ID=node1/1880175-1245115854
PBS_JOBID= 9363668
Free space on /tmp= 66220 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111221624.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880175-1245115854/watcher-1880175-1245115854 -o /tmp/evaluation-result-1880175-1245115854/solver-1880175-1245115854 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880175-1245115854.opb

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

MD5SUM BENCH= 1cbab9bec076c91ef9a04fed1aa2ec63
RANDOM SEED=1454993875

node1.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		: 3000.245
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		: 3000.245
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:       1419656 kB
Buffers:         59444 kB
Cached:         481980 kB
SwapCached:        400 kB
Active:          77592 kB
Inactive:       477228 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1419656 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4116 kB
Writeback:           0 kB
Mapped:          22492 kB
Slab:            67384 kB
Committed_AS:   137708 kB
PageTables:       1436 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= 66216 MiB
End job on node1 at 2009-06-16 03:31:10