Trace number 372358

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, and are wall clock time (not CPU 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 NameAnswerObjective functionCPU timeWall clock time
bsolo 3.0.16OPT5852 0.05699 0.0591159

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-LIN/submittedPB07/
poldner/PB/testset/normalized-8_16.opb
MD5SUMa50db2fb26a0b36972cba004cae6f3a3
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark5852
Best CPU time to get the best result obtained on this benchmark0.023995
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 5852
Optimality of the best value was proved YES
Number of variables136
Total number of constraints144
Number of constraints which are clauses128
Number of constraints which are cardinality constraints (but not clauses)16
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint8
Number of terms in the objective function 136
Biggest coefficient in the objective function 1311
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 58669
Number of bits of the sum of numbers in the objective function 16
Biggest number in a constraint 1311
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 58669
Number of bits of the biggest sum of numbers16
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00/0.00	c bsolo beta version 3.0.16 - 04/04/2007 : 1458 GMT
0.00/0.00	c Developed by Vasco Manquinho 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 Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/372358-1177091924/instance-372358-1177091924.opb
0.00/0.00	c File size is 5303 bytes.
0.00/0.00	c Highest Coefficient sum: 58669
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 136 Constr: 160 144/16/0 Lit: 512 Watch. Lit: 416
0.00/0.00	c Obj. Vars: 136 (100 % of total variables)
0.00/0.00	c Pre-processing Time: 0.001 s
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    136      160      512    3      416     346      0      0 0.00
0.00/0.01	c Initial Lower Bound: 5763
0.00/0.01	c Initial Path Cost: 0
0.00/0.01	o 7664	0.006
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    136      161      648    4      537     618      1      0 0.01
0.00/0.01	o 5897	0.008 * 
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    136      162      784    4      648     890      2      0 0.01
0.00/0.01	o 5876	0.012 * 
0.00/0.03	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.03	c        0    136      163      920    5      759    1162      3      0 0.01
0.00/0.03	o 5852	0.031 * 
0.00/0.05	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.05	c       20    136      200     1386    6      978    1162     40    645 0.03
0.00/0.05	v -x1 -x2 -x3 -x4 -x5 -x6 -x7 x8 -x9 -x10 -x11 -x12 -x13 -x14 x15 -x16 -x17 -x18 x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 x27 -x28 -x29
0.00/0.05	v -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 x40 -x41 -x42 x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55
0.00/0.05	v x56 -x57 -x58 x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 x72 -x73 -x74 -x75 -x76 -x77 -x78 x79 -x80 -x81 -x82
0.00/0.05	v x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 x96 -x97 -x98 -x99 -x100 -x101 -x102 x103 -x104 -x105 -x106 x107
0.00/0.05	v -x108 -x109 -x110 -x111 -x112 -x113 -x114 x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 x123 -x124 -x125 -x126 -x127 -x128
0.00/0.05	v -x129 -x130 x131 -x132 -x133 -x134 x135 x136
0.00/0.05	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.00/0.05	c    4       49      1       67      255     2125     95    942 0.05
0.00/0.05	c Objective: 5852
0.00/0.05	s OPTIMUM FOUND
0.00/0.05	c Total time: 0.052 s

Verifier Data (download as text)

OK	5852

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node10/watcher-372358-1177091924 -o ROOT/results/node10/solver-372358-1177091924 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/372358-1177091924/instance-372358-1177091924.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): 3600 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 8472
/proc/meminfo: memFree=1638608/2055920 swapFree=4152380/4192956
[pid=8472] ppid=8470 vsize=11744 CPUtime=0
/proc/8472/stat : 8472 (bsolo3.0.16) R 8470 8472 7934 0 -1 4194304 370 0 0 0 0 0 0 0 18 0 1 0 185229965 12025856 338 18446744073709551615 134512640 135841103 4294956640 18446744073709551615 9340539 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8472/statm: 2936 338 283 324 0 2003 0

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

Child status: 0
Real time (s): 0.0591159
CPU time (s): 0.05699
CPU user time (s): 0.048992
CPU system time (s): 0.007998
CPU usage (%): 96.4038
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.048992
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1495
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= 12
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.002999 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Fri Apr 20 17:58:44 UTC 2007

IDJOB= 372358
IDBENCH= 24966
IDSOLVER= 163
FILE ID= node10/372358-1177091924

PBS_JOBID= 4640336

Free space on /tmp= 66266 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-LIN/submittedPB07/poldner/PB/testset/normalized-8_16.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/372358-1177091924/instance-372358-1177091924.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-372358-1177091924 -o ROOT/results/node10/solver-372358-1177091924 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/372358-1177091924/instance-372358-1177091924.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  a50db2fb26a0b36972cba004cae6f3a3

RANDOM SEED= 410039455

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node10.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.259
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		: 3000.259
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:       1639016 kB
Buffers:         37888 kB
Cached:         302840 kB
SwapCached:       8860 kB
Active:         142048 kB
Inactive:       222008 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1639016 kB
SwapTotal:     4192956 kB
SwapFree:      4152380 kB
Dirty:            4408 kB
Writeback:           0 kB
Mapped:          30268 kB
Slab:            38412 kB
Committed_AS:  3629412 kB
PageTables:       1708 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= 66266 MiB

End job on node10 on Fri Apr 20 17:58:45 UTC 2007