Trace number 430702

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 0.111982 0.115352

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=5-P0=17-P1=13-P2=29-P3=11-B.opb
MD5SUM31ecba1f2caab058bc592ea08e468b48
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 benchmark0.027995
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 variables45
Total number of constraints7
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 constraints7
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)75
Sum of products size (including duplicates)150
Number of different products75
Sum of products size150

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/430702-1177997987/instance-430702-1177997987.opb
0.00/0.00	c File size is 1691 bytes.
0.00/0.00	c Highest Coefficient sum: 1984
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: 120 Constr: 160 75/0/85 Lit: 670 Watch. Lit: 430
0.00/0.00	c Obj. Vars: 5 (4.16667 % of total variables)
0.00/0.00	c Pre-processing Time: 0.002 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    120      160      670    4      573     914      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.00/0.06	c      100    120      260     2999   11      764    1006    100  16666 0.01
0.00/0.06	c      250    120      410     6605   16     1045    1107    250  19230 0.01
0.00/0.06	c      477    120      637    11759   18     1500    1218    477  20739 0.02
0.00/0.06	c      816    120      976    20324   20     2198    1340    816  18545 0.04
0.00/0.06	o 11	0.062
0.06/0.08	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.08	c     1079    119     1240    26840   21     2720     924   1080  17403 0.06
0.06/0.08	c     1180    112      725    14116   19     1692    1017    565  16857 0.07
0.06/0.08	o 7	0.082
0.06/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.09	c     1321    112      867    17467   20     1990     922    707  16109 0.08
0.06/0.09	o 3	0.09
0.09/0.11	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.11	c     1400    105      947    19293   20     2150     920    787  15555 0.09
0.09/0.11	c     1501     90     1048    21054   20     2337    1013    888  14861 0.10
0.09/0.11	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 x31 -x32 -x33 -x34 -x35 x26
0.09/0.11	v -x27 x28 -x29 -x30 -x36 -x37 -x38 -x39 -x40 x41 -x42 -x43 -x44 -x45
0.09/0.11	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.11	c    9     1588     76     1989     1135    22591    975  14568 0.11
0.09/0.11	c Objective: 3
0.09/0.11	s OPTIMUM FOUND
0.09/0.11	c Total time: 0.109 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/node1/watcher-430702-1177997987 -o ROOT/results/node1/solver-430702-1177997987 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/430702-1177997987/instance-430702-1177997987.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 0.97 0.98 3/77 23797
/proc/meminfo: memFree=1835888/2055920 swapFree=4145736/4192956
[pid=23797] ppid=23795 vsize=19552 CPUtime=0
/proc/23797/stat : 23797 (bsolo3.0.16) R 23795 23797 23141 0 -1 4194304 375 0 0 0 0 0 0 0 18 0 1 0 275836529 20021248 344 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 6169448 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23797/statm: 2935 347 292 324 0 2003 0

[startup+0.0748631 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 23797
/proc/meminfo: memFree=1835888/2055920 swapFree=4145736/4192956
[pid=23797] ppid=23795 vsize=4440 CPUtime=0.06
/proc/23797/stat : 23797 (bsolo3.0.16) R 23795 23797 23141 0 -1 4194304 524 0 0 0 6 0 0 0 18 0 1 0 275836529 4546560 492 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23797/statm: 1110 492 313 324 0 179 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4440

[startup+0.101867 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 23797
/proc/meminfo: memFree=1835888/2055920 swapFree=4145736/4192956
[pid=23797] ppid=23795 vsize=4440 CPUtime=0.09
/proc/23797/stat : 23797 (bsolo3.0.16) R 23795 23797 23141 0 -1 4194304 524 0 0 0 9 0 0 0 18 0 1 0 275836529 4546560 492 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23797/statm: 1110 492 313 324 0 179 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4440

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

Child status: 0
Real time (s): 0.115352
CPU time (s): 0.111982
CPU user time (s): 0.105983
CPU system time (s): 0.005999
CPU usage (%): 97.0785
Max. virtual memory (cumulated for all children) (KiB): 4440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.105983
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 525
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 0.000999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node1 on Tue May  1 05:39:47 UTC 2007

IDJOB= 430702
IDBENCH= 47999
IDSOLVER= 163
FILE ID= node1/430702-1177997987

PBS_JOBID= 4728234

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=17-P1=13-P2=29-P3=11-B.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/430702-1177997987/instance-430702-1177997987.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-430702-1177997987 -o ROOT/results/node1/solver-430702-1177997987 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/430702-1177997987/instance-430702-1177997987.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  31ecba1f2caab058bc592ea08e468b48

RANDOM SEED= 63763024

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node1.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		: 3000.234
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		: 3000.234
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:       1836168 kB
Buffers:         30392 kB
Cached:         102244 kB
SwapCached:      14516 kB
Active:          91212 kB
Inactive:        64928 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1836168 kB
SwapTotal:     4192956 kB
SwapFree:      4145736 kB
Dirty:            6656 kB
Writeback:           0 kB
Mapped:          30348 kB
Slab:            48912 kB
Committed_AS:  5743340 kB
PageTables:       1832 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 node1 on Tue May  1 05:39:47 UTC 2007