Trace number 36516

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
Pueblo 1.4UNSAT 48.8026 48.8207

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/
ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-bnl2.opb
MD5SUM4c72c91139ee79c29342b8f97e9b4cad
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark44.9042
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables104670
Total number of constraints2262
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 constraints2262
Minimum length of a constraint30
Maximum length of a constraint2460
Number of terms in the objective function 50550
Biggest coefficient in the objective function 14942
Number of bits for the biggest coefficient in the objective function 14
Sum of the numbers in the objective function 568060
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262145
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 568060
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00	c Pueblo version 1.4 (September 2005)
0.00	c Developed @ University of Michigan, Ann Arbor, MI
0.00	c  by Hossein Sheini
4.01	c starting to Solve
4.01	c #variables read: 104670 - #constraints read: 3590
48.81	c total time              : 48.79 s
48.81	s UNSATISFIABLE

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node62/watcher-36516-1149342643 -o ROOT/results/node62/solver-36516-1149342643 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user8/Pueblo ROOT/tmp/node62/36516-1149342643/instance-36516-1149342643.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.89 0.97 0.97 2/64 13560
/proc/meminfo: memFree=1212544/2055920 swapFree=4191908/4192956
[pid=13560] ppid=13558 vsize=2280 CPUtime=0
/proc/13560/stat : 13560 (Pueblo) R 13558 13560 13514 0 -1 4194304 192 0 0 0 0 0 0 0 19 0 1 0 43467860 2334720 164 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 9173568 0 0 4096 0 0 0 0 17 1 0 0
/proc/13560/statm: 570 170 148 16 0 11 0

[startup+10.0031 s]
/proc/loadavg: 0.90 0.97 0.97 2/64 13560
/proc/meminfo: memFree=1164568/2055920 swapFree=4191908/4192956
[pid=13560] ppid=13558 vsize=52432 CPUtime=9.99
/proc/13560/stat : 13560 (Pueblo) R 13558 13560 13514 0 -1 4194304 382205 0 0 0 891 108 0 0 25 0 1 0 43467860 53690368 12145 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 134527772 0 0 4096 0 0 0 0 17 1 0 0
/proc/13560/statm: 13108 12145 206 16 0 12549 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 52432

[startup+20.0103 s]
/proc/loadavg: 0.92 0.97 0.97 2/64 13560
/proc/meminfo: memFree=1163048/2055920 swapFree=4191908/4192956
[pid=13560] ppid=13558 vsize=54260 CPUtime=19.99
/proc/13560/stat : 13560 (Pueblo) R 13558 13560 13514 0 -1 4194304 382643 0 0 0 1890 109 0 0 25 0 1 0 43467860 55562240 12583 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 134528023 0 0 4096 0 0 0 0 17 1 0 0
/proc/13560/statm: 13565 12583 206 16 0 13006 0
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 54260

[startup+30.0165 s]
/proc/loadavg: 0.93 0.97 0.97 2/64 13560
/proc/meminfo: memFree=1160936/2055920 swapFree=4191908/4192956
[pid=13560] ppid=13558 vsize=56480 CPUtime=29.99
/proc/13560/stat : 13560 (Pueblo) R 13558 13560 13514 0 -1 4194304 383203 0 0 0 2890 109 0 0 25 0 1 0 43467860 57835520 13143 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 134527762 0 0 4096 0 0 0 0 17 1 0 0
/proc/13560/statm: 14120 13143 206 16 0 13561 0
Current children cumulated CPU time (s) 29.99
Current children cumulated vsize (Kb) 56480

[startup+40.0227 s]
/proc/loadavg: 0.94 0.97 0.97 2/64 13560
/proc/meminfo: memFree=1157928/2055920 swapFree=4191908/4192956
[pid=13560] ppid=13558 vsize=59536 CPUtime=40
/proc/13560/stat : 13560 (Pueblo) R 13558 13560 13514 0 -1 4194304 383963 0 0 0 3890 110 0 0 25 0 1 0 43467860 60964864 13903 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 134559594 0 0 4096 0 0 0 0 17 1 0 0
/proc/13560/statm: 14884 13903 206 16 0 14325 0
Current children cumulated CPU time (s) 40
Current children cumulated vsize (Kb) 59536

Child status: 20
Real time (s): 48.8207
CPU time (s): 48.8026
CPU user time (s): 47.6878
CPU system time (s): 1.11483
CPU usage (%): 99.963
Max. virtual memory (cumulated for all children) (Kb): 59536

Launcher Data (download as text)

Begin job on node62 on Sat Jun  3 13:50:43 UTC 2006


FILE ID= 36516-1149342643

PBS_JOBID= 310510

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-bnl2.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user8/Pueblo ROOT/tmp/node62/36516-1149342643/instance-36516-1149342643.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node62/watcher-36516-1149342643 -o ROOT/results/node62/solver-36516-1149342643 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user8/Pueblo ROOT/tmp/node62/36516-1149342643/instance-36516-1149342643.opb

MD5SUM SOLVER= 80c24de60e85bc4a9ec18ca4764e7dff
MD5SUM BENCH=  4c72c91139ee79c29342b8f97e9b4cad

RANDOM SEED= 97137153


/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		: 3000.225
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		: 3000.225
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:       1212816 kB
Buffers:         35072 kB
Cached:         728880 kB
SwapCached:        572 kB
Active:          76044 kB
Inactive:       702048 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1212816 kB
SwapTotal:     4192956 kB
SwapFree:      4191908 kB
Dirty:             204 kB
Writeback:           0 kB
Mapped:          23728 kB
Slab:            51048 kB
Committed_AS:   281256 kB
PageTables:       1480 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node62 on Sat Jun  3 13:51:32 UTC 2006