Trace number 453555

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 3.0.16OPT3 0.797878 0.798779

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_50_25_5.opb
MD5SUMf4c69768619389ba083d2740787a0405
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.306952
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
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 constraint36
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)1464
Sum of products size (including duplicates)2928
Number of different products1464
Sum of products size2928

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/453555-1178142720/instance-453555-1178142720.opb
0.00/0.00	c File size is 18259 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: 0.008 s
0.00/0.01	c Var: 1514 Constr: 2978 1514/0/1464 Lit: 10298 Watch. Lit: 7420
0.00/0.01	c Obj. Vars: 50 (3.30251 % of total variables)
0.06/0.08	c Pre-processing Time: 0.083 s
0.06/0.08	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.08	c        0   1514     2978    10298    3     7420    9288      0      0 0.08
0.06/0.08	c Switching off LPR mode.
0.06/0.08	o 49	0.084
0.06/0.08	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.08	c        0   1514     2979    10348    3     7423    9322      1      0 0.09
0.06/0.08	o 48	0.085
0.06/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.09	c        0   1514     2980    10398    3     7427    9372      2      0 0.09
0.06/0.09	o 47	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   1514     2981    10448    3     7432    9438      3      0 0.09
0.06/0.09	o 46	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   1514     2982    10498    3     7438    9522      4      0 0.09
0.06/0.09	o 45	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   1514     2983    10548    3     7445    9622      5      0 0.09
0.06/0.09	o 43	0.091
0.06/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.09	c        1   1514     2985    10643    3     7456    9655      7     10 0.09
0.06/0.09	o 3	0.092
0.69/0.79	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.69/0.79	c        1   1514     2986    10693    3     7505   10322      8     10 0.09
0.69/0.79	c      102   1514     3087    19772    6     7707   11355    109    864 0.12
0.69/0.79	c      356   1514     3341    50605   15     8215   12491    363   1719 0.21
0.69/0.79	c      835   1514     3820   102642   26     9173   13741    842   1902 0.44
0.69/0.79	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
0.69/0.79	v -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50
0.69/0.79	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.69/0.79	c   10     1432    230     2409     4417   149563   1439   1808 0.79
0.69/0.79	c Objective: 3
0.69/0.79	s OPTIMUM FOUND
0.69/0.79	c Total time: 0.792 s

Verifier Data (download as text)

OK	3

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node14/watcher-453555-1178142720 -o ROOT/results/node14/solver-453555-1178142720 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/453555-1178142720/instance-453555-1178142720.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 22968
/proc/meminfo: memFree=1779200/2055920 swapFree=4148808/4192956
[pid=22968] ppid=22966 vsize=19568 CPUtime=0
/proc/22968/stat : 22968 (bsolo3.0.16) R 22966 22968 22530 0 -1 4194304 375 0 0 0 0 0 0 0 18 0 1 0 262189816 20037632 345 18446744073709551615 134512640 135841103 4294956592 18446744073709551615 7362171 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22968/statm: 2939 346 291 324 0 2003 0

[startup+0.0663921 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 22968
/proc/meminfo: memFree=1779200/2055920 swapFree=4148808/4192956
[pid=22968] ppid=22966 vsize=4620 CPUtime=0.06
/proc/22968/stat : 22968 (bsolo3.0.16) R 22966 22968 22530 0 -1 4194304 575 0 0 0 6 0 0 0 18 0 1 0 262189816 4730880 540 18446744073709551615 134512640 135841103 4294956592 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22968/statm: 1155 540 306 324 0 224 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4620

[startup+0.101396 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 22968
/proc/meminfo: memFree=1779200/2055920 swapFree=4148808/4192956
[pid=22968] ppid=22966 vsize=4884 CPUtime=0.09
/proc/22968/stat : 22968 (bsolo3.0.16) R 22966 22968 22530 0 -1 4194304 628 0 0 0 9 0 0 0 18 0 1 0 262189816 5001216 593 18446744073709551615 134512640 135841103 4294956592 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22968/statm: 1221 593 312 324 0 290 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4884

[startup+0.301415 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 22968
/proc/meminfo: memFree=1779200/2055920 swapFree=4148808/4192956
[pid=22968] ppid=22966 vsize=5656 CPUtime=0.29
/proc/22968/stat : 22968 (bsolo3.0.16) R 22966 22968 22530 0 -1 4194304 827 0 0 0 29 0 0 0 19 0 1 0 262189816 5791744 792 18446744073709551615 134512640 135841103 4294956592 18446744073709551615 134550971 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22968/statm: 1414 792 312 324 0 483 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5656

[startup+0.701453 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 22968
/proc/meminfo: memFree=1779200/2055920 swapFree=4148808/4192956
[pid=22968] ppid=22966 vsize=6432 CPUtime=0.69
/proc/22968/stat : 22968 (bsolo3.0.16) R 22966 22968 22530 0 -1 4194304 1034 0 0 0 68 1 0 0 22 0 1 0 262189816 6586368 999 18446744073709551615 134512640 135841103 4294956592 18446744073709551615 7356568 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22968/statm: 1608 999 312 324 0 677 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6432

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

Child status: 0
Real time (s): 0.798779
CPU time (s): 0.797878
CPU user time (s): 0.78488
CPU system time (s): 0.012998
CPU usage (%): 99.8872
Max. virtual memory (cumulated for all children) (KiB): 6432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.78488
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1076
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 0.002999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Wed May  2 21:52:01 UTC 2007

IDJOB= 453555
IDBENCH= 48138
IDSOLVER= 163
FILE ID= node14/453555-1178142720

PBS_JOBID= 4751059

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mds/normalized-mds_50_25_5.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/453555-1178142720/instance-453555-1178142720.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-453555-1178142720 -o ROOT/results/node14/solver-453555-1178142720 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/453555-1178142720/instance-453555-1178142720.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  f4c69768619389ba083d2740787a0405

RANDOM SEED= 783734210

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.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		: 3000.227
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		: 3000.227
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:       1779608 kB
Buffers:        110384 kB
Cached:          79336 kB
SwapCached:      11220 kB
Active:         102596 kB
Inactive:       114448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1779608 kB
SwapTotal:     4192956 kB
SwapFree:      4148808 kB
Dirty:            6696 kB
Writeback:           0 kB
Mapped:          32944 kB
Slab:            44712 kB
Committed_AS:  9224436 kB
PageTables:       1796 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 node14 on Wed May  2 21:52:01 UTC 2007