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/submitted/manquinho/routing/normalized-s4-4-3-7pb.opb
MD5SUM	24909033929a72aa74b2fd8b12f27bce
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	64
Optimality of the best value was proved	NO
Number of terms in the objective function	672
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	672
Number of bits of the sum of numbers in the objective function	10
Biggest number in a constraint	3
Number of bits of the biggest number in a constraint	2
Biggest sum of numbers in a constraint	672
Number of bits of the biggest sum of numbers	10
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.02884
Number of variables	672
Total number of constraints	2030
Number of constraints which are clauses	2006
Number of constraints which are cardinality constraints (but not clauses)	24
Number of constraints which are nor clauses,nor cardinality constraints	0
Minimum length of a constraint	2
Maximum length of a constraint	28

Trace number 40786

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-08 22:10:18 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=28857 boxname=wulflinc3 idbench=243 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  24909033929a72aa74b2fd8b12f27bce  /oldhome/oroussel/tmp/wulflinc3/normalized-s4-4-3-7pb.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-s4-4-3-7pb.opb
IDLAUNCH: 28857
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        734928 kB
Buffers:         29904 kB
Cached:         249652 kB
SwapCached:        808 kB
Active:          47396 kB
Inactive:       234240 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        734676 kB
SwapTotal:     2097136 kB
SwapFree:      2095332 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5012 kB
Slab:            12348 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-08 22:10:20 (client local time) WITH STATUS 30 IN 1.41578 SECONDS
stats: 28857 0 1.41578 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 672 variables and 2030 constraints.
c After prepocess the problem consists of 560 variables and 1692 constraints.
c preprocess terminated 0.516 s
c Initial Lower Bound: 64
c NEW SOLUTION FOUND: 64 @ 1.402
s OPTIMUM FOUND
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c Exit Code: 30
c Total time: 1.406 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.88 0.88 0.88 2/54 31841
Raw data (stat): 31841 (runsolver) R 31840 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 905118503 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+1.43783 s]
Raw data (loadavg): 0.88 0.88 0.88 1/53 31841
Raw data (stat): 31841 (runsolver) R 31840 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 905118503 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 30
Real time (s): 1.43756
CPU time (s): 1.41578
CPU user time (s): 1.35679
CPU system time (s): 0.058991
CPU usage (%): 98.4856
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	64
#### END VERIFIER DATA ####