Trace number 452868

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 0.157975 0.160816

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
roussel/factor-mod-B/factor-mod-size=6-P0=41-P1=53-P2=59-B.opb
MD5SUM90616edfb9551f327ceab21eaa4edb03
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/452868-1177988838/instance-452868-1177988838.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 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.
0.00/0.02	c      102    108      253     4036   15      733     937    102  14571 0.01
0.00/0.02	c      253    108      404     9217   22     1034    1031    253  19461 0.01
0.00/0.02	o 23	0.022
0.09/0.12	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.12	c      417    108      569    14380   25     1371     863    418  18954 0.02
0.09/0.12	c      518    108      670    17796   26     1554     950    519  17266 0.03
0.09/0.12	c      769    108      921    25568   27     2059    1046    770  14509 0.05
0.09/0.12	c     1246    100      849    21810   25     1929    1151    698  12097 0.10
0.09/0.12	o 7	0.119
0.09/0.12	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.12	c     1507     99     1111    29516   26     2456     861    960  12663 0.12
0.09/0.12	o 3	0.121
0.09/0.15	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.15	c     1522     99      601    13644   22     1434     861    450  12578 0.12
0.09/0.15	c     1625     66      704    16002   22     1626     948    553  12795 0.13
0.09/0.15	c     1876     63      955    22003   23     2134    1043    804  13118 0.14
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 -x26 -x27 -x28 -x29 -x30 -x31
0.09/0.15	v -x32 -x33 -x34 -x35 -x36
0.09/0.15	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.15	c   10     2012     67     2387     1091    25042    940  12980 0.15
0.09/0.15	c Objective: 3
0.09/0.15	s OPTIMUM FOUND
0.09/0.15	c Total time: 0.155 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/node19/watcher-452868-1177988838 -o ROOT/results/node19/solver-452868-1177988838 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452868-1177988838/instance-452868-1177988838.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 0.97 0.99 3/77 13154
/proc/meminfo: memFree=1754616/2055920 swapFree=4153644/4192956
[pid=13154] ppid=13152 vsize=11740 CPUtime=0
/proc/13154/stat : 13154 (bsolo3.0.17) R 13152 13154 22967 0 -1 4194304 376 0 0 0 0 0 0 0 18 0 1 0 246801177 12021760 346 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 7919227 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13154/statm: 2935 346 290 324 0 2004 0

[startup+0.064878 s]
/proc/loadavg: 0.99 0.97 0.99 3/77 13154
/proc/meminfo: memFree=1754616/2055920 swapFree=4153644/4192956
[pid=13154] ppid=13152 vsize=4440 CPUtime=0.06
/proc/13154/stat : 13154 (bsolo3.0.17) R 13152 13154 22967 0 -1 4194304 514 0 0 0 6 0 0 0 18 0 1 0 246801177 4546560 483 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 7919227 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13154/statm: 1110 484 311 324 0 180 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4440

[startup+0.102882 s]
/proc/loadavg: 0.99 0.97 0.99 3/77 13154
/proc/meminfo: memFree=1754616/2055920 swapFree=4153644/4192956
[pid=13154] ppid=13152 vsize=4572 CPUtime=0.09
/proc/13154/stat : 13154 (bsolo3.0.17) R 13152 13154 22967 0 -1 4194304 545 0 0 0 9 0 0 0 18 0 1 0 246801177 4681728 514 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134550893 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13154/statm: 1143 514 311 324 0 213 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4572

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

Child status: 0
Real time (s): 0.160816
CPU time (s): 0.157975
CPU user time (s): 0.154976
CPU system time (s): 0.002999
CPU usage (%): 98.2334
Max. virtual memory (cumulated for all children) (KiB): 4572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.154976
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= 549
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 0.001999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node19 on Tue May  1 03:07:18 UTC 2007

IDJOB= 452868
IDBENCH= 47935
IDSOLVER= 199
FILE ID= node19/452868-1177988838

PBS_JOBID= 4728145

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=41-P1=53-P2=59-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452868-1177988838/instance-452868-1177988838.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-452868-1177988838 -o ROOT/results/node19/solver-452868-1177988838 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452868-1177988838/instance-452868-1177988838.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  90616edfb9551f327ceab21eaa4edb03

RANDOM SEED= 752893847

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node19.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		: 3000.213
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		: 3000.213
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:       1755088 kB
Buffers:         49352 kB
Cached:         160476 kB
SwapCached:       7976 kB
Active:          99584 kB
Inactive:       137712 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1755088 kB
SwapTotal:     4192956 kB
SwapFree:      4153644 kB
Dirty:            6812 kB
Writeback:           0 kB
Mapped:          33364 kB
Slab:            49112 kB
Committed_AS:  5632432 kB
PageTables:       1800 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 node19 on Tue May  1 03:07:18 UTC 2007