Trace number 452857

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 0.25896 0.259984

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=8-P0=157-P1=47-B.opb
MD5SUM65e30a452de5692ad7673801cf6b385e
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 benchmark0.023995
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 variables24
Total number of constraints3
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 constraints3
Minimum length of a constraint8
Maximum length of a constraint72
Number of terms in the objective function 8
Biggest coefficient in the objective function 128
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 255
Number of bits of the sum of numbers in the objective function 8
Biggest number in a constraint 32768
Number of bits of the biggest number in a constraint 16
Biggest sum of numbers in a constraint 130516
Number of bits of the biggest sum of numbers17
Number of products (including duplicates)64
Sum of products size (including duplicates)128
Number of different products64
Sum of products size128

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/452857-1177987119/instance-452857-1177987119.opb
0.00/0.00	c File size is 1316 bytes.
0.00/0.00	c Highest Coefficient sum: 130516
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: 88 Constr: 132 64/0/68 Lit: 544 Watch. Lit: 340
0.00/0.00	c Obj. Vars: 8 (9.09091 % 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     88      132      544    4      468     725      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.19/0.23	c      100     88      232     5592   24      658     798    100  11111 0.01
0.19/0.23	c      251     88      383    13394   34      960     878    251  12550 0.02
0.19/0.23	c      477     88      609    25796   42     1411     966    477  11634 0.04
0.19/0.23	c      815     88      947    46100   48     2093    1063    815  10316 0.08
0.19/0.23	c     1324     88      871    42820   49     1932    1170    739   8653 0.15
0.19/0.23	o 241	0.234
0.19/0.24	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.24	c     1939     88      846    40582   47     1899     741    714   8286 0.23
0.19/0.24	o 65	0.236
0.19/0.25	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.25	c     1960     88      868    41830   48     1941     741    736   8305 0.24
0.19/0.25	c     2061     88      531    23018   43     1265     816    399   8378 0.25
0.19/0.25	o 13	0.25
0.19/0.25	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.25	c     2110     88      581    25776   44     1370     741    449   8440 0.25
0.19/0.25	o 5	0.253
0.19/0.25	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.25	c     2142     48      614    26653   43     1427     733    482   8466 0.25
0.19/0.25	o 3	0.253
0.19/0.25	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.25	c     2143     48      616    26680   43     1433     733    484   8470 0.25
0.19/0.25	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
0.19/0.25	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.25	c   11     2144     21     2392      617    26681    485   8474 0.25
0.19/0.25	c Objective: 3
0.19/0.25	s OPTIMUM FOUND
0.19/0.25	c Total time: 0.253 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-452857-1177987119 -o ROOT/results/node1/solver-452857-1177987119 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452857-1177987119/instance-452857-1177987119.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: 0.87 0.97 0.99 3/77 22093
/proc/meminfo: memFree=1860312/2055920 swapFree=4145736/4192956
[pid=22093] ppid=22091 vsize=3780 CPUtime=0
/proc/22093/stat : 22093 (bsolo3.0.17) R 22091 22093 6883 0 -1 4194304 234 0 0 0 0 0 0 0 18 0 1 0 274749766 3870720 204 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 135644784 0 0 4096 0 0 0 0 17 1 0 0
/proc/22093/statm: 945 220 193 324 0 15 0

[startup+0.0522329 s]
/proc/loadavg: 0.87 0.97 0.99 3/77 22093
/proc/meminfo: memFree=1860312/2055920 swapFree=4145736/4192956
[pid=22093] ppid=22091 vsize=12256 CPUtime=0.04
/proc/22093/stat : 22093 (bsolo3.0.17) R 22091 22093 6883 0 -1 4194304 508 0 0 0 4 0 0 0 18 0 1 0 274749766 12550144 477 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 6264443 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22093/statm: 3064 477 309 324 0 2134 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 12256

[startup+0.101239 s]
/proc/loadavg: 0.87 0.97 0.99 3/77 22093
/proc/meminfo: memFree=1860312/2055920 swapFree=4145736/4192956
[pid=22093] ppid=22091 vsize=12520 CPUtime=0.09
/proc/22093/stat : 22093 (bsolo3.0.17) R 22091 22093 6883 0 -1 4194304 589 0 0 0 9 0 0 0 18 0 1 0 274749766 12820480 558 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 6270706 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22093/statm: 3130 558 309 324 0 2200 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12520

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

[startup+0.20125 s]
/proc/loadavg: 0.87 0.97 0.99 3/77 22093
/proc/meminfo: memFree=1860312/2055920 swapFree=4145736/4192956
[pid=22093] ppid=22091 vsize=12776 CPUtime=0.19
/proc/22093/stat : 22093 (bsolo3.0.17) R 22091 22093 6883 0 -1 4194304 635 0 0 0 19 0 0 0 19 0 1 0 274749766 13082624 604 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134550902 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22093/statm: 3194 604 309 324 0 2264 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 12776

Child status: 0
Real time (s): 0.259984
CPU time (s): 0.25896
CPU user time (s): 0.255961
CPU system time (s): 0.002999
CPU usage (%): 99.6061
Max. virtual memory (cumulated for all children) (KiB): 12776

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.255961
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= 665
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 0.000999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node1 on Tue May  1 02:38:39 UTC 2007

IDJOB= 452857
IDBENCH= 47924
IDSOLVER= 199
FILE ID= node1/452857-1177987119

PBS_JOBID= 4728129

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=8-P0=157-P1=47-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452857-1177987119/instance-452857-1177987119.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-452857-1177987119 -o ROOT/results/node1/solver-452857-1177987119 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452857-1177987119/instance-452857-1177987119.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  65e30a452de5692ad7673801cf6b385e

RANDOM SEED= 915347364

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:       1860784 kB
Buffers:         22572 kB
Cached:          85176 kB
SwapCached:      14516 kB
Active:          76476 kB
Inactive:        54972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1860784 kB
SwapTotal:     4192956 kB
SwapFree:      4145736 kB
Dirty:            6796 kB
Writeback:           0 kB
Mapped:          30552 kB
Slab:            49136 kB
Committed_AS:  5735780 kB
PageTables:       1836 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 02:38:40 UTC 2007