Trace number 452834

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 0.525919 0.527383

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/
factor-mod-size=5-P0=29-P1=11-P2=11-P3=17-P4=29-P5=23-B.opb
MD5SUMfcb10f2a5637609269e4645e32e48d88
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 benchmark0.039993
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 variables75
Total number of constraints11
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 constraints11
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)125
Sum of products size (including duplicates)250
Number of different products125
Sum of products size250

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/452834-1177983183/instance-452834-1177983183.opb
0.00/0.00	c File size is 2671 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: 200 Constr: 266 125/0/141 Lit: 1120 Watch. Lit: 716
0.00/0.00	c Obj. Vars: 5 (2.5 % of total variables)
0.00/0.00	c Pre-processing Time: 0.003 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    200      266     1120    4      957    1531      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.00/0.02	c      101    200      367     3569    9     1142    1685    101  14428 0.01
0.00/0.02	c      254    200      520     8085   15     1396    1854    254  18142 0.01
0.00/0.02	o 25	0.024
0.00/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.04	c      465    200      732    13830   18     1848    1541    466  19375 0.02
0.00/0.04	c      565    200      832    16761   20     2057    1696    566  18833 0.03
0.00/0.04	o 9	0.041
0.09/0.13	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.13	c      774    200     1042    22612   21     2474    1541    776  18878 0.04
0.09/0.13	c      874    193     1142    24972   21     2693    1696    876  18208 0.05
0.09/0.13	c     1124    193     1392    32068   23     3213    1866   1126  17841 0.06
0.09/0.13	c     1600    193     1868    44550   23     4125    2053   1602  17204 0.09
0.09/0.13	o 3	0.127
0.49/0.52	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.49/0.52	c     2077    192     1296    27685   21     2987    1539   1030  16100 0.13
0.49/0.52	c     2178    186     1397    30501   21     3196    1693   1131  15897 0.14
0.49/0.52	c     2428    186     1647    37679   22     3696    1863   1381  15973 0.15
0.49/0.52	c     2904    186     2123    51248   24     4640    2050   1857  14666 0.20
0.49/0.52	c     3718    169     1817    41885   23     4030    2256   1551  14083 0.26
0.49/0.52	c     5039    162     1943    41184   21     4268    2482   1677  13054 0.39
0.49/0.52	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 -x30 x31 -x32
0.49/0.52	v -x33 -x34 -x35 x51 -x52 -x53 -x54 -x55 x36 x37 x38 -x39 -x40 -x56 -x57 -x58 -x59 -x60 x41 -x42 x43 -x44 x45 -x61 -x62 -x63 -x64
0.49/0.52	v -x65 x46 x47 -x48 x49 x50 x66 -x67 -x68 x69 -x70 -x71 -x72 x73 -x74 -x75
0.49/0.52	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.49/0.52	c   14     6061    271     7513     1684    28667   1418  11633 0.52
0.49/0.52	c Objective: 3
0.49/0.52	s OPTIMUM FOUND
0.49/0.52	c Total time: 0.521 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/node23/watcher-452834-1177983183 -o ROOT/results/node23/solver-452834-1177983183 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452834-1177983183/instance-452834-1177983183.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 0.91 3/77 6681
/proc/meminfo: memFree=1898096/2055920 swapFree=4169104/4192956
[pid=6681] ppid=6679 vsize=11740 CPUtime=0
/proc/6681/stat : 6681 (bsolo3.0.17) R 6679 6681 14988 0 -1 4194304 375 0 0 0 0 0 0 0 18 0 1 0 246235439 12021760 345 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6681/statm: 982 346 290 324 0 51 0

[startup+0.0896671 s]
/proc/loadavg: 0.92 0.98 0.91 3/77 6681
/proc/meminfo: memFree=1898096/2055920 swapFree=4169104/4192956
[pid=6681] ppid=6679 vsize=4704 CPUtime=0.08
/proc/6681/stat : 6681 (bsolo3.0.17) R 6679 6681 14988 0 -1 4194304 585 0 0 0 8 0 0 0 18 0 1 0 246235439 4816896 554 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 2930299 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6681/statm: 1176 554 311 324 0 246 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4704

[startup+0.101669 s]
/proc/loadavg: 0.92 0.98 0.91 3/77 6681
/proc/meminfo: memFree=1898096/2055920 swapFree=4169104/4192956
[pid=6681] ppid=6679 vsize=4832 CPUtime=0.09
/proc/6681/stat : 6681 (bsolo3.0.17) R 6679 6681 14988 0 -1 4194304 602 0 0 0 9 0 0 0 18 0 1 0 246235439 4947968 571 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 2924604 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6681/statm: 1208 571 311 324 0 278 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4832

[startup+0.301708 s]
/proc/loadavg: 0.92 0.98 0.91 3/77 6681
/proc/meminfo: memFree=1898096/2055920 swapFree=4169104/4192956
[pid=6681] ppid=6679 vsize=4964 CPUtime=0.29
/proc/6681/stat : 6681 (bsolo3.0.17) R 6679 6681 14988 0 -1 4194304 661 0 0 0 29 0 0 0 19 0 1 0 246235439 5083136 630 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134547668 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6681/statm: 1241 630 311 324 0 311 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4964

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

[startup+0.501747 s]
/proc/loadavg: 0.92 0.98 0.91 3/77 6681
/proc/meminfo: memFree=1898096/2055920 swapFree=4169104/4192956
[pid=6681] ppid=6679 vsize=5092 CPUtime=0.49
/proc/6681/stat : 6681 (bsolo3.0.17) R 6679 6681 14988 0 -1 4194304 673 0 0 0 49 0 0 0 21 0 1 0 246235439 5214208 642 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134546112 0 0 4096 16384 0 0 0 17 1 0 0
/proc/6681/statm: 1273 642 311 324 0 343 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 5092

Child status: 0
Real time (s): 0.527383
CPU time (s): 0.525919
CPU user time (s): 0.52192
CPU system time (s): 0.003999
CPU usage (%): 99.7224
Max. virtual memory (cumulated for all children) (KiB): 5092

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.52192
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= 677
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= 12

runsolver used 0.003999 second user time and 0.002999 second system time

The end

Launcher Data (download as text)

Begin job on node23 on Tue May  1 01:33:03 UTC 2007

IDJOB= 452834
IDBENCH= 47901
IDSOLVER= 199
FILE ID= node23/452834-1177983183

PBS_JOBID= 4728174

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=29-P1=11-P2=11-P3=17-P4=29-P5=23-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452834-1177983183/instance-452834-1177983183.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-452834-1177983183 -o ROOT/results/node23/solver-452834-1177983183 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452834-1177983183/instance-452834-1177983183.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  fcb10f2a5637609269e4645e32e48d88

RANDOM SEED= 521417258

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node23.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		: 3000.276
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		: 3000.276
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:       1898504 kB
Buffers:         18524 kB
Cached:          50700 kB
SwapCached:       2176 kB
Active:          67848 kB
Inactive:        23868 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1898504 kB
SwapTotal:     4192956 kB
SwapFree:      4169104 kB
Dirty:            6688 kB
Writeback:           0 kB
Mapped:          30168 kB
Slab:            51196 kB
Committed_AS:  3045648 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 node23 on Tue May  1 01:33:04 UTC 2007