Trace number 452971

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 3.0.17OPT3 0.149976 0.151848

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=5-P0=19-P1=23-P2=23-P3=23-B.opb
MD5SUMa7d7ec970e4707afa1937f254331884d
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 benchmark0.024995
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 3.0.17 - 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/452971-1178004215/instance-452971-1178004215.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 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: 0.001 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.
0.00/0.02	c      101    120      261     3096   11      765    1006    101  20200 0.01
0.00/0.02	c      252    120      412     7108   17     1044    1107    252  22909 0.01
0.00/0.02	o 17	0.02
0.00/0.03	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.03	c      454    120      615    11812   19     1463     924    455  22700 0.02
0.00/0.03	c      555    120      716    14454   20     1681    1017    556  21346 0.03
0.00/0.03	o 15	0.028
0.00/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.04	c      585    120      747    15201   20     1739     924    587  20892 0.03
0.00/0.04	c      686    113      848    18034   21     1926    1017    688  19600 0.04
0.00/0.04	o 9	0.041
0.04/0.05	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.04/0.05	c      795    113      958    20241   21     2167     922    798  19390 0.04
0.04/0.05	c      895    113     1058    22887   21     2368    1015    898  17900 0.05
0.04/0.05	o 7	0.051
0.04/0.05	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.04/0.05	c      903    113     1067    23030   21     2389     922    907  17705 0.05
0.04/0.05	o 5	0.053
0.04/0.06	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.04/0.06	c      926    106     1091    23321   21     2440     920    931  17471 0.05
0.04/0.06	c     1026    106      676    12716   18     1605    1013    516  16819 0.06
0.04/0.06	o 3	0.064
0.09/0.15	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.15	c     1075    106      726    13642   18     1696     920    566  16796 0.06
0.09/0.15	c     1175    106      826    16534   20     1875    1013    666  17028 0.07
0.09/0.15	c     1425    106     1076    23170   21     2387    1115    916  16569 0.09
0.09/0.15	c     1900     90      953    19365   20     2153    1227    793  15322 0.12
0.09/0.15	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
0.09/0.15	v x27 x28 -x29 -x30 -x36 -x37 -x38 -x39 -x40 -x41 -x42 x43 -x44 -x45
0.09/0.15	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.15	c   15     2101    131     2873     1154    24026    994  14489 0.14
0.09/0.15	c Objective: 3
0.09/0.15	s OPTIMUM FOUND
0.09/0.15	c Total time: 0.145 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/node42/watcher-452971-1178004215 -o ROOT/results/node42/solver-452971-1178004215 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452971-1178004215/instance-452971-1178004215.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: 0.99 0.98 0.99 3/77 372
/proc/meminfo: memFree=1763088/2055920 swapFree=4147452/4192956
[pid=372] ppid=370 vsize=3928 CPUtime=0
/proc/372/stat : 372 (bsolo3.0.17) R 370 372 31238 0 -1 4194304 376 0 0 0 0 0 0 0 18 0 1 0 248333410 4022272 346 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/372/statm: 982 347 290 324 0 51 0

[startup+0.0505091 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 372
/proc/meminfo: memFree=1763088/2055920 swapFree=4147452/4192956
[pid=372] ppid=370 vsize=4312 CPUtime=0.04
/proc/372/stat : 372 (bsolo3.0.17) R 370 372 31238 0 -1 4194304 496 0 0 0 4 0 0 0 18 0 1 0 248333410 4415488 465 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 12842619 0 0 4096 16384 0 0 0 17 1 0 0
/proc/372/statm: 1078 465 311 324 0 148 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4312

[startup+0.101518 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 372
/proc/meminfo: memFree=1763088/2055920 swapFree=4147452/4192956
[pid=372] ppid=370 vsize=4444 CPUtime=0.09
/proc/372/stat : 372 (bsolo3.0.17) R 370 372 31238 0 -1 4194304 517 0 0 0 9 0 0 0 18 0 1 0 248333410 4550656 486 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 12842619 0 0 4096 16384 0 0 0 17 1 0 0
/proc/372/statm: 1111 486 311 324 0 181 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4444

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

Child status: 0
Real time (s): 0.151848
CPU time (s): 0.149976
CPU user time (s): 0.145977
CPU system time (s): 0.003999
CPU usage (%): 98.7672
Max. virtual memory (cumulated for all children) (KiB): 4444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.145977
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 535
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= 3

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node42 on Tue May  1 07:23:35 UTC 2007

IDJOB= 452971
IDBENCH= 48038
IDSOLVER= 199
FILE ID= node42/452971-1178004215

PBS_JOBID= 4728216

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=19-P1=23-P2=23-P3=23-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452971-1178004215/instance-452971-1178004215.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node42/watcher-452971-1178004215 -o ROOT/results/node42/solver-452971-1178004215 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452971-1178004215/instance-452971-1178004215.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  a7d7ec970e4707afa1937f254331884d

RANDOM SEED= 144710988

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node42.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		: 3000.277
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		: 3000.277
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:       1763496 kB
Buffers:         30472 kB
Cached:         170500 kB
SwapCached:      14316 kB
Active:          76180 kB
Inactive:       148896 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1763496 kB
SwapTotal:     4192956 kB
SwapFree:      4147452 kB
Dirty:            6668 kB
Writeback:           0 kB
Mapped:          31000 kB
Slab:            52792 kB
Committed_AS:  3741784 kB
PageTables:       1916 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 node42 on Tue May  1 07:23:36 UTC 2007