PB'05 competition: run trace

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 in four parts:

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 provide some useful information on the computer.
SOLVER DATA
This is the output of the solver (stdout and stderr).
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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
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.
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.

General information on the benchmark

Name	normalized-opb/mps-v2-13-7/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-mkc1.opb
MD5SUM	d176539199497efb0c829821dd5c09ea
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	0
Optimality of the best value was proved	NO
Number of terms in the objective function	18598
Biggest coefficient in the objective function	2560000
Number of bits for the biggest coefficient in the objective function	22
Sum of the numbers in the objective function	7036117195
Number of bits of the sum of numbers in the objective function	33
Biggest number in a constraint	524288000
Number of bits of the biggest number in a constraint	29
Biggest sum of numbers in a constraint	8002856320
Number of bits of the biggest sum of numbers	33
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	7.43987
Number of variables	21015
Total number of constraints	8734
Number of constraints which are clauses	712
Number of constraints which are cardinality constraints (but not clauses)	3174
Number of constraints which are nor clauses,nor cardinality constraints	4848
Minimum length of a constraint	1
Maximum length of a constraint	18426

Trace number 25508

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-20 00:27:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=19501 boxname=wulflinc31 idbench=1501 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  d176539199497efb0c829821dd5c09ea  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-mkc1.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-mkc1.opb
IDLAUNCH: 19501
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        836928 kB
Buffers:         23396 kB
Cached:         153504 kB
SwapCached:        920 kB
Active:         100412 kB
Inactive:        78636 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        836676 kB
SwapTotal:     2097892 kB
SwapFree:      2095972 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5088 kB
Slab:            13000 kB
Committed_AS:    63856 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-20 00:28:42 (client local time) WITH STATUS 20 IN 101.523 SECONDS
stats: 19501 7 101.523 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 21015 variables and 5585 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 101.404 s
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.89 0.91 0.90 2/55 27073
Raw data (stat): 27073 (runsolver) R 27072 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 791326740 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 135158418 0 2147483391 1 90112 0 0 0 17 0 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10 s]
Raw data (loadavg): 0.91 0.92 0.91 2/55 27073
Raw data (stat): 27073 (bsolo_lpr) R 27072 7876 7672 0 -1 0 7919 0 0 0 978 17 0 0 25 0 1 0 791326740 45187072 7842 4294967295 134512640 134714508 3221221792 3221220020 1077414360 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 11032 7842 1111 63 0 10969 0
vsize: 44128
[startup+20.0014 s]
Raw data (loadavg): 0.92 0.92 0.91 2/55 27073
Raw data (stat): 27073 (bsolo_lpr) R 27072 7876 7672 0 -1 0 12790 0 0 0 1969 27 0 0 25 0 1 0 791326740 65200128 12713 4294967295 134512640 134714508 3221221792 3221220020 1077414407 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 15918 12713 1111 63 0 15855 0
vsize: 63672
[startup+30.0018 s]
Raw data (loadavg): 0.93 0.92 0.91 2/55 27073
Raw data (stat): 27073 (bsolo_lpr) R 27072 7876 7672 0 -1 0 18151 0 0 0 2959 37 0 0 25 0 1 0 791326740 87162880 18074 4294967295 134512640 134714508 3221221792 3221220020 1077414382 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 21280 18074 1111 63 0 21217 0
vsize: 85120
[startup+40.0018 s]
Raw data (loadavg): 0.94 0.92 0.91 2/55 27073
Raw data (stat): 27073 (bsolo_lpr) R 27072 7876 7672 0 -1 0 23863 0 0 0 3950 46 0 0 25 0 1 0 791326740 110592000 23786 4294967295 134512640 134714508 3221221792 3221220448 134527932 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 27000 23786 1111 63 0 26937 0
vsize: 108000
[startup+50.003 s]
Raw data (loadavg): 0.95 0.92 0.91 2/55 27073
Raw data (stat): 27073 (bsolo_lpr) R 27072 7876 7672 0 -1 0 30048 0 0 0 4938 58 0 0 25 0 1 0 791326740 136048640 29971 4294967295 134512640 134714508 3221221792 3221220448 134527932 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 33215 29971 1111 63 0 33152 0
vsize: 132860
[startup+60.0027 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 27073
Raw data (stat): 27073 (bsolo_lpr) R 27072 7876 7672 0 -1 0 33905 0 0 0 5930 66 0 0 25 0 1 0 791326740 151789568 33828 4294967295 134512640 134714508 3221221792 3221220068 1077414338 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 37058 33828 1111 63 0 36995 0
vsize: 148232
[startup+70.0035 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 27073
Raw data (stat): 27073 (bsolo_lpr) R 27072 7876 7672 0 -1 0 34041 0 0 0 6929 67 0 0 25 0 1 0 791326740 152330240 33964 4294967295 134512640 134714508 3221221792 3221220068 1077414345 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 37190 33964 1111 63 0 37127 0
vsize: 148760
[startup+80.0037 s]
Raw data (loadavg): 0.97 0.93 0.91 2/55 27073
Raw data (stat): 27073 (bsolo_lpr) R 27072 7876 7672 0 -1 0 34272 0 0 0 7929 67 0 0 25 0 1 0 791326740 153276416 34195 4294967295 134512640 134714508 3221221792 3221220068 1077414383 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 37421 34195 1111 63 0 37358 0
vsize: 149684
[startup+90.0034 s]
Raw data (loadavg): 0.97 0.93 0.91 2/55 27073
Raw data (stat): 27073 (bsolo_lpr) R 27072 7876 7672 0 -1 0 34802 0 0 0 8927 69 0 0 25 0 1 0 791326740 155422720 34717 4294967295 134512640 134714508 3221221792 3221220288 134539146 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 37945 34717 1111 63 0 37882 0
vsize: 151780
[startup+100.003 s]
Raw data (loadavg): 0.98 0.93 0.91 2/55 27073
Raw data (stat): 27073 (bsolo_lpr) R 27072 7876 7672 0 -1 0 47263 0 0 0 9903 92 0 0 25 0 1 0 791326740 206598144 47166 4294967295 134512640 134714508 3221221792 3221220068 1077414382 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 50439 47166 1111 63 0 50376 0
vsize: 201756
[startup+101.559 s]
Raw data (loadavg): 0.98 0.93 0.91 1/54 27073
Raw data (stat): 27073 (bsolo_lpr) R 27072 7876 7672 0 -1 0 47263 0 0 0 9903 92 0 0 25 0 1 0 791326740 206598144 47166 4294967295 134512640 134714508 3221221792 3221220068 1077414382 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 50439 47166 1111 63 0 50376 0
vsize: 0

Child status: 20
Real time (s): 101.559
CPU time (s): 101.523
CPU user time (s): 100.4
CPU system time (s): 1.12283
CPU usage (%): 99.9643
Max. virtual memory (Kb): 201756
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####