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-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-diamond.opb
MD5SUM	e831146cbe5440d26a726f925ce17a93
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	NO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function	1
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	1
Number of bits of the sum of numbers in the objective function	1
Biggest number in a constraint	3
Number of bits of the biggest number in a constraint	2
Biggest sum of numbers in a constraint	7
Number of bits of the biggest sum of numbers	3
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.003998
Number of variables	2
Total number of constraints	6
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	4
Number of constraints which are nor clauses,nor cardinality constraints	2
Minimum length of a constraint	1
Maximum length of a constraint	2

Trace number 16986

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc26 THE 2005-04-21 09:35:05 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11787 boxname=wulflinc26 idbench=907 idsolver=9 numberseed=0
MD5SUM SOLVER: daf345f6fbf228671abfac48013b9cac  /oldhome/oroussel/solvers/sat4jPseudo.jar
MD5SUM BENCH:  e831146cbe5440d26a726f925ce17a93  /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-diamond.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudo.jar /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-diamond.opb
IDLAUNCH: 11787
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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		: 451.061
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:        673948 kB
Buffers:         20240 kB
Cached:         309900 kB
SwapCached:         68 kB
Active:          22068 kB
Inactive:       310936 kB
HighTotal:      131008 kB
HighFree:       103936 kB
LowTotal:       903652 kB
LowFree:        570012 kB
SwapTotal:     2097892 kB
SwapFree:      2097800 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6876 kB
Slab:            21956 kB
Committed_AS:    63724 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-21 09:35:10 (client local time) WITH STATUS 20 IN 1.3178 SECONDS
stats: 11787 7 1.3178 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c solving /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-diamond.opb
c reading problem 
c [nbvar=2]
c [nbconstr=6]
c time 0.928
c #vars     2
c #clauses  4
c starts	: 0
c conflicts	: 0
c decisions	: 0
c propagations	: 0
c inspects	: 0
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 0
c root simplifications	: 0
c Total CPU time (ms) : 1.03
s UNSATISFIABLE
#### 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): 0.65 0.85 0.89 2/54 28687
Raw data (stat): 28687 (runsolver) R 28686 22612 22611 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 544045841 1052672 99 4294967295 134512640 135381576 3221224432 3221219680 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+4.31642 s]
Raw data (loadavg): 0.65 0.85 0.89 1/53 28698
Raw data (stat): 28687 (runsolver) R 28686 22612 22611 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 544045841 1052672 99 4294967295 134512640 135381576 3221224432 3221219680 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 20
Real time (s): 4.31608
CPU time (s): 1.3178
CPU user time (s): 1.16182
CPU system time (s): 0.155976
CPU usage (%): 30.5323
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####