Trace number 453921

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 3.0.17OPT2 0.145977 0.148207

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_50_25_2.opb
MD5SUMf082d755a098ee30cf6a4e6ef2f7b520
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark0.083986
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
Optimality of the best value was proved YES
Number of variables50
Total number of constraints50
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints50
Minimum length of a constraint26
Maximum length of a constraint40
Number of terms in the objective function 50
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 50
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)1480
Sum of products size (including duplicates)2960
Number of different products1480
Sum of products size2960

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 3.0.17 - 27/04/2007 : 1600 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 Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/453921-1178164407/instance-453921-1178164407.opb
0.00/0.00	c File size is 18407 bytes.
0.00/0.01	c Highest Coefficient sum: 50
0.00/0.01	c Parsing was ok!!
0.00/0.01	c Total parsing time: 0.009 s
0.00/0.01	c Var: 1530 Constr: 3010 1530/0/1480 Lit: 10410 Watch. Lit: 7500
0.00/0.01	c Obj. Vars: 50 (3.26797 % of total variables)
0.06/0.09	c Pre-processing Time: 0.086 s
0.06/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.09	c        0   1530     3010    10410    3     7500    9390      0      0 0.09
0.06/0.09	c Switching off LPR mode.
0.06/0.09	o 49	0.087
0.06/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.09	c        0   1530     3011    10460    3     7503    9423      1      0 0.09
0.06/0.09	o 48	0.088
0.06/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.09	c        0   1530     3012    10510    3     7507    9473      2      0 0.09
0.06/0.09	o 47	0.089
0.06/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.09	c        0   1530     3013    10560    3     7512    9540      3      0 0.09
0.06/0.09	o 46	0.09
0.06/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.09	c        0   1530     3014    10610    3     7518    9623      4      0 0.09
0.06/0.09	o 45	0.092
0.06/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.09	c        0   1530     3015    10660    3     7525    9723      5      0 0.09
0.06/0.09	o 44	0.093
0.06/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.09	c        0   1530     3016    10710    3     7533    9840      6      0 0.09
0.06/0.09	o 43	0.094
0.06/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.10	c        0   1530     3017    10760    3     7542    9973      7      0 0.09
0.06/0.10	o 37	0.095
0.09/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.10	c        1   1530     3019    10853    3     7559   10073      9     10 0.10
0.09/0.10	o 4	0.097
0.09/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.10	c        1   1530     3020    10903    3     7607   10623     10     10 0.10
0.09/0.10	o 3	0.098
0.09/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.10	c        3   1530     3023    11041    3     7660   10640     13     30 0.10
0.09/0.10	o 2	0.104
0.09/0.14	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.14	c       29   1530     3050    13211    4     7762   10656     40    278 0.10
0.09/0.14	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
0.09/0.14	v -x29 -x30 -x31 -x32 -x33 -x34 -x35 x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50
0.09/0.14	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.14	c   11      103     20     1246     3124    16954    114    725 0.14
0.09/0.14	c Objective: 2
0.09/0.14	s OPTIMUM FOUND
0.09/0.14	c Total time: 0.142 s

Verifier Data (download as text)

OK	2

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node19/watcher-453921-1178164407 -o ROOT/results/node19/solver-453921-1178164407 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/453921-1178164407/instance-453921-1178164407.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: 0.93 0.97 0.98 3/77 20675
/proc/meminfo: memFree=1589344/2055920 swapFree=4153644/4192956
[pid=20675] ppid=20673 vsize=19568 CPUtime=0
/proc/20675/stat : 20675 (bsolo3.0.17) R 20673 20675 20297 0 -1 4194304 374 0 0 0 0 0 0 0 18 0 1 0 264358107 20037632 344 18446744073709551615 134512640 135840783 4294956608 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20675/statm: 986 344 289 324 0 51 0

[startup+0.0621931 s]
/proc/loadavg: 0.93 0.97 0.98 3/77 20675
/proc/meminfo: memFree=1589344/2055920 swapFree=4153644/4192956
[pid=20675] ppid=20673 vsize=4756 CPUtime=0.06
/proc/20675/stat : 20675 (bsolo3.0.17) R 20673 20675 20297 0 -1 4194304 575 0 0 0 6 0 0 0 18 0 1 0 264358107 4870144 540 18446744073709551615 134512640 135840783 4294956608 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20675/statm: 1189 540 304 324 0 259 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4756

[startup+0.101197 s]
/proc/loadavg: 0.93 0.97 0.98 3/77 20675
/proc/meminfo: memFree=1589344/2055920 swapFree=4153644/4192956
[pid=20675] ppid=20673 vsize=4888 CPUtime=0.09
/proc/20675/stat : 20675 (bsolo3.0.17) R 20673 20675 20297 0 -1 4194304 628 0 0 0 9 0 0 0 18 0 1 0 264358107 5005312 593 18446744073709551615 134512640 135840783 4294956608 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20675/statm: 1222 593 310 324 0 292 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4888

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

Child status: 0
Real time (s): 0.148207
CPU time (s): 0.145977
CPU user time (s): 0.142978
CPU system time (s): 0.002999
CPU usage (%): 98.4954
Max. virtual memory (cumulated for all children) (KiB): 4888

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.142978
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 633
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= 1

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node19 on Thu May  3 03:53:27 UTC 2007

IDJOB= 453921
IDBENCH= 48162
IDSOLVER= 199
FILE ID= node19/453921-1178164407

PBS_JOBID= 4751095

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mds/normalized-mds_50_25_2.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/453921-1178164407/instance-453921-1178164407.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-453921-1178164407 -o ROOT/results/node19/solver-453921-1178164407 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/453921-1178164407/instance-453921-1178164407.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  f082d755a098ee30cf6a4e6ef2f7b520

RANDOM SEED= 860808053

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node19.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		: 3000.213
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		: 3000.213
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:       1589688 kB
Buffers:        110908 kB
Cached:         236724 kB
SwapCached:       8416 kB
Active:         145196 kB
Inactive:       234008 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1589688 kB
SwapTotal:     4192956 kB
SwapFree:      4153644 kB
Dirty:            6812 kB
Writeback:           0 kB
Mapped:          29892 kB
Slab:            72524 kB
Committed_AS:  8881040 kB
PageTables:       1784 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= 66558 MiB

End job on node19 on Thu May  3 03:53:28 UTC 2007