Trace number 452991

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 0.146977 0.148704

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
roussel/factor-mod-B/factor-mod-size=6-P0=37-P1=23-P2=5-B.opb
MD5SUMbb953622d436623e8cc95a70e227bd07
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 benchmark0.026995
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 variables36
Total number of constraints5
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 constraints5
Minimum length of a constraint6
Maximum length of a constraint48
Number of terms in the objective function 6
Biggest coefficient in the objective function 32
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 63
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 2048
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 8064
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)72
Sum of products size (including duplicates)144
Number of different products72
Sum of products size144

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/452991-1178007133/instance-452991-1178007133.opb
0.00/0.00	c File size is 1538 bytes.
0.00/0.00	c Highest Coefficient sum: 8064
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: 108 Constr: 151 72/0/79 Lit: 630 Watch. Lit: 398
0.00/0.00	c Obj. Vars: 6 (5.55556 % 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    108      151      630    4      540     851      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.00/0.04	c      100    108      251     4311   17      721     937    100  14285 0.01
0.00/0.04	c      250    108      401     9468   23     1030    1031    250  19230 0.01
0.00/0.04	c      475    108      626    17090   27     1478    1135    475  17592 0.03
0.00/0.04	o 35	0.042
0.06/0.09	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.06/0.09	c      697    108      849    24613   28     1920     863    698  16595 0.04
0.06/0.09	c      798    108      950    27857   29     2123     950    799  15647 0.05
0.06/0.09	c     1049    108      692    17625   25     1591    1046    541  14569 0.07
0.06/0.09	o 33	0.095
0.09/0.10	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.10	c     1358    108     1002    27513   27     2236     863    851  14294 0.10
0.09/0.10	o 3	0.099
0.09/0.14	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.14	c     1423    107      585    14221   24     1401     863    434  14230 0.10
0.09/0.14	c     1523     78      685    16909   24     1585     950    534  14101 0.11
0.09/0.14	c     1773     65      935    23358   24     2087    1046    784  13960 0.13
0.09/0.14	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
0.09/0.14	v x31 -x32 x33 -x34 -x35 -x36
0.09/0.14	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.14	c   10     1946     81     2714     1108    27350    957  13608 0.14
0.09/0.14	c Objective: 3
0.09/0.14	s OPTIMUM FOUND
0.09/0.14	c Total time: 0.143 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/node62/watcher-452991-1178007133 -o ROOT/results/node62/solver-452991-1178007133 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452991-1178007133/instance-452991-1178007133.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: 0.84 0.94 0.97 3/64 1646
/proc/meminfo: memFree=1815768/2055920 swapFree=4184544/4192956
[pid=1646] ppid=1644 vsize=11740 CPUtime=0
/proc/1646/stat : 1646 (bsolo3.0.17) R 1644 1646 1348 0 -1 4194304 376 0 0 0 0 0 0 0 18 0 1 0 119289269 12021760 346 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 8541819 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1646/statm: 982 346 290 324 0 51 0

[startup+0.0695261 s]
/proc/loadavg: 0.84 0.94 0.97 3/64 1646
/proc/meminfo: memFree=1815768/2055920 swapFree=4184544/4192956
[pid=1646] ppid=1644 vsize=4452 CPUtime=0.06
/proc/1646/stat : 1646 (bsolo3.0.17) R 1644 1646 1348 0 -1 4194304 535 0 0 0 6 0 0 0 18 0 1 0 119289269 4558848 504 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 8541819 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1646/statm: 1113 504 311 324 0 183 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4452

[startup+0.10253 s]
/proc/loadavg: 0.84 0.94 0.97 3/64 1646
/proc/meminfo: memFree=1815768/2055920 swapFree=4184544/4192956
[pid=1646] ppid=1644 vsize=4580 CPUtime=0.09
/proc/1646/stat : 1646 (bsolo3.0.17) R 1644 1646 1348 0 -1 4194304 538 0 0 0 9 0 0 0 18 0 1 0 119289269 4689920 507 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134551100 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1646/statm: 1145 507 311 324 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4580

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

Child status: 0
Real time (s): 0.148704
CPU time (s): 0.146977
CPU user time (s): 0.141978
CPU system time (s): 0.004999
CPU usage (%): 98.8386
Max. virtual memory (cumulated for all children) (KiB): 4580

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.141978
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 542
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 0.002999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node62 on Tue May  1 08:12:13 UTC 2007

IDJOB= 452991
IDBENCH= 48058
IDSOLVER= 199
FILE ID= node62/452991-1178007133

PBS_JOBID= 4728321

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=6-P0=37-P1=23-P2=5-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452991-1178007133/instance-452991-1178007133.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node62/watcher-452991-1178007133 -o ROOT/results/node62/solver-452991-1178007133 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452991-1178007133/instance-452991-1178007133.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  bb953622d436623e8cc95a70e227bd07

RANDOM SEED= 479793640

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node62.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		: 3000.216
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		: 3000.216
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:       1816240 kB
Buffers:         14600 kB
Cached:         153036 kB
SwapCached:       2296 kB
Active:          77452 kB
Inactive:        99584 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1816240 kB
SwapTotal:     4192956 kB
SwapFree:      4184544 kB
Dirty:            6712 kB
Writeback:           0 kB
Mapped:          15840 kB
Slab:            48620 kB
Committed_AS:  1341636 kB
PageTables:       1460 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 node62 on Tue May  1 08:12:13 UTC 2007