Trace number 429848

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 3.0.16OPT3 0.080987 0.0812201

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=7-P0=79-P1=41-B.opb
MD5SUM4ddd68556b0128f7c9c0c4c2bfb48c53
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 benchmark0.009997
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 variables21
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 constraint7
Maximum length of a constraint56
Number of terms in the objective function 7
Biggest coefficient in the objective function 64
Number of bits for the biggest coefficient in the objective function 7
Sum of the numbers in the objective function 127
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 8192
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 32424
Number of bits of the biggest sum of numbers15
Number of products (including duplicates)49
Sum of products size (including duplicates)98
Number of different products49
Sum of products size98

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/429848-1177988934/instance-429848-1177988934.opb
0.00/0.00	c File size is 1078 bytes.
0.00/0.00	c Highest Coefficient sum: 32424
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: 70 Constr: 102 49/0/53 Lit: 420 Watch. Lit: 265
0.00/0.00	c Obj. Vars: 7 (10 % 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     70      102      420    4      361     562      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.02/0.07	c      101     70      203     4262   20      554     619    101  12625 0.01
0.02/0.07	c      251     70      353     9802   27      852     681    251  13210 0.02
0.02/0.07	c      476     70      578    19708   34     1287     750    476  12864 0.04
0.02/0.07	c      815     70      517    18216   35     1176     826    415  11478 0.07
0.02/0.07	o 3	0.075
0.02/0.07	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.02/0.07	c      851     70      554    19745   35     1255     576    452  11346 0.07
0.02/0.07	v x1 x2 -x3 -x4 -x5 -x6 -x7 x8 -x9 x10 x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21
0.02/0.07	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.02/0.07	c    5      855     15      970      558    19749    456  11400 0.07
0.02/0.07	c Objective: 3
0.02/0.07	s OPTIMUM FOUND
0.02/0.07	c Total time: 0.075 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/node39/watcher-429848-1177988934 -o ROOT/results/node39/solver-429848-1177988934 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/429848-1177988934/instance-429848-1177988934.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 1.00 1.00 3/77 20897
/proc/meminfo: memFree=1851224/2055920 swapFree=4159400/4192956
[pid=20897] ppid=20895 vsize=11736 CPUtime=0
/proc/20897/stat : 20897 (bsolo3.0.16) R 20895 20897 18483 0 -1 4194304 390 0 0 0 0 0 0 0 18 0 1 0 246805453 12017664 358 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 11527803 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20897/statm: 2934 360 302 324 0 2003 0

[startup+0.0233679 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 20897
/proc/meminfo: memFree=1851224/2055920 swapFree=4159400/4192956
[pid=20897] ppid=20895 vsize=11992 CPUtime=0.02
/proc/20897/stat : 20897 (bsolo3.0.16) R 20895 20897 18483 0 -1 4194304 440 0 0 0 2 0 0 0 18 0 1 0 246805453 12279808 408 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20897/statm: 2998 409 311 324 0 2067 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 11992

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

[startup+0.0233679 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 20897
/proc/meminfo: memFree=1851224/2055920 swapFree=4159400/4192956
[pid=20897] ppid=20895 vsize=11992 CPUtime=0.02
/proc/20897/stat : 20897 (bsolo3.0.16) R 20895 20897 18483 0 -1 4194304 440 0 0 0 2 0 0 0 18 0 1 0 246805453 12279808 408 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20897/statm: 2998 409 311 324 0 2067 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 11992

Child status: 0
Real time (s): 0.0812201
CPU time (s): 0.080987
CPU user time (s): 0.075988
CPU system time (s): 0.004999
CPU usage (%): 99.713
Max. virtual memory (cumulated for all children) (KiB): 11992

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.075988
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= 529
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 0.000999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Tue May  1 03:08:54 UTC 2007

IDJOB= 429848
IDBENCH= 47938
IDSOLVER= 163
FILE ID= node39/429848-1177988934

PBS_JOBID= 4728045

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=7-P0=79-P1=41-B.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/429848-1177988934/instance-429848-1177988934.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-429848-1177988934 -o ROOT/results/node39/solver-429848-1177988934 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/429848-1177988934/instance-429848-1177988934.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  4ddd68556b0128f7c9c0c4c2bfb48c53

RANDOM SEED= 938680865

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node39.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		: 3000.256
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		: 3000.256
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:       1851632 kB
Buffers:         27604 kB
Cached:          84884 kB
SwapCached:      13788 kB
Active:          75956 kB
Inactive:        61288 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1851632 kB
SwapTotal:     4192956 kB
SwapFree:      4159400 kB
Dirty:            6804 kB
Writeback:           0 kB
Mapped:          31776 kB
Slab:            52364 kB
Committed_AS:  2184344 kB
PageTables:       2016 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 node39 on Tue May  1 03:08:54 UTC 2007