Trace number 455700

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 3.0.16OPT-4 0.022996 0.0241191

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/bsg/normalized-bsg_10_4_5.opb
MD5SUM9031daf4c6715fe6246dcc322bb303d7
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-4
Best CPU time to get the best result obtained on this benchmark0.007997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -4
Optimality of the best value was proved YES
Number of variables20
Total number of constraints31
Number of constraints which are clauses10
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints21
Minimum length of a constraint2
Maximum length of a constraint20
Number of terms in the objective function 10
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 10
Number of bits of the sum of numbers in the objective function 4
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 20
Number of bits of the biggest sum of numbers5
Number of products (including duplicates)92
Sum of products size (including duplicates)184
Number of different products46
Sum of products size92

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 3.0.16 - 04/04/2007 : 1458 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 Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/455700-1178047569/instance-455700-1178047569.opb
0.00/0.00	c File size is 1730 bytes.
0.00/0.00	c Highest Coefficient sum: 20
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: 112 Constr: 216 102/22/92 Lit: 704 Watch. Lit: 594
0.00/0.00	c Obj. Vars: 10 (8.92857 % of total variables)
0.00/0.01	c Pre-processing Time: 0.007 s
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    112      216      704    3      594     835      0      0 0.01
0.00/0.01	c Switching off LPR mode.
0.00/0.01	o -1	0.007
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    112      217      714    3      597     841      1      0 0.01
0.00/0.01	o -2	0.007
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    112      218      724    3      601     851      2      0 0.01
0.00/0.01	o -3	0.007
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        7    112      226      817    3      620     855     10    875 0.01
0.00/0.01	c      108    112      327     2052    6      822     941    111   9818 0.01
0.00/0.01	o -4	0.014
0.01/0.02	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.01/0.02	c      187    112      407     2951    7      986     858    191  13357 0.01
0.01/0.02	v -x1 x2 -x3 x4 -x5 -x6 x7 -x8 -x9 x10 x16 x13 -x17 -x20 -x12 -x14 x19 -x11 -x15 x18
0.01/0.02	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.01/0.02	c    5      261     18      430      481     3478    265  14500 0.02
0.01/0.02	c Objective: -4
0.01/0.02	s OPTIMUM FOUND
0.01/0.02	c Total time: 0.018 s

Verifier Data (download as text)

OK	-4

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node5/watcher-455700-1178047569 -o ROOT/results/node5/solver-455700-1178047569 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/455700-1178047569/instance-455700-1178047569.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: 1.22 1.25 1.19 3/77 2065
/proc/meminfo: memFree=1788992/2055920 swapFree=4149732/4192956
[pid=2065] ppid=2063 vsize=11740 CPUtime=0
/proc/2065/stat : 2065 (bsolo3.0.16) R 2063 2065 29097 0 -1 4194304 378 0 0 0 0 0 0 0 18 0 1 0 280794569 12021760 347 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 8328827 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2065/statm: 2935 347 291 324 0 2003 0

[startup+0.0195169 s]
/proc/loadavg: 1.22 1.25 1.19 3/77 2065
/proc/meminfo: memFree=1788992/2055920 swapFree=4149732/4192956
[pid=2065] ppid=2063 vsize=4056 CPUtime=0.01
/proc/2065/stat : 2065 (bsolo3.0.16) R 2063 2065 29097 0 -1 4194304 424 0 0 0 1 0 0 0 18 0 1 0 280794569 4153344 392 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2065/statm: 1014 392 313 324 0 83 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4056

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

[startup+0.0195169 s]
/proc/loadavg: 1.22 1.25 1.19 3/77 2065
/proc/meminfo: memFree=1788992/2055920 swapFree=4149732/4192956
[pid=2065] ppid=2063 vsize=4056 CPUtime=0.01
/proc/2065/stat : 2065 (bsolo3.0.16) R 2063 2065 29097 0 -1 4194304 424 0 0 0 1 0 0 0 18 0 1 0 280794569 4153344 392 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2065/statm: 1014 392 313 324 0 83 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4056

Child status: 0
Real time (s): 0.0241191
CPU time (s): 0.022996
CPU user time (s): 0.018997
CPU system time (s): 0.003999
CPU usage (%): 95.3437
Max. virtual memory (cumulated for all children) (KiB): 4056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.018997
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= 427
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= 0

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Tue May  1 19:26:09 UTC 2007

IDJOB= 455700
IDBENCH= 48281
IDSOLVER= 163
FILE ID= node5/455700-1178047569

PBS_JOBID= 4728468

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/bsg/normalized-bsg_10_4_5.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/455700-1178047569/instance-455700-1178047569.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-455700-1178047569 -o ROOT/results/node5/solver-455700-1178047569 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/455700-1178047569/instance-455700-1178047569.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  9031daf4c6715fe6246dcc322bb303d7

RANDOM SEED= 601238297

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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		: 3000.232
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		: 3000.232
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:       1789400 kB
Buffers:        108248 kB
Cached:          77704 kB
SwapCached:      11180 kB
Active:         166040 kB
Inactive:        52904 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1789400 kB
SwapTotal:     4192956 kB
SwapFree:      4149732 kB
Dirty:            6772 kB
Writeback:           0 kB
Mapped:          34788 kB
Slab:            33224 kB
Committed_AS: 12285200 kB
PageTables:       1728 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 node5 on Tue May  1 19:26:09 UTC 2007