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/MIPLIB/miplib/normalized-mps-v2-13-7-khb05250.opb
MD5SUM	16cce9479fbccbb902b090a1fce13788
Bench Category	optimization, big integers (OPTBIGINT)
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	25004
Biggest coefficient in the objective function	6104809472
Number of bits for the biggest coefficient in the objective function	33
Sum of the numbers in the objective function	5527422840150
Number of bits of the sum of numbers in the objective function	43
Biggest number in a constraint	6104809472
Number of bits of the biggest number in a constraint	33
Biggest sum of numbers in a constraint	5527422840150
Number of bits of the biggest sum of numbers	43
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.221965
Number of variables	25544
Total number of constraints	126
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	24
Number of constraints which are nor clauses,nor cardinality constraints	102
Minimum length of a constraint	1
Maximum length of a constraint	1020

Trace number 31051

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-05-25 21:55:47 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=22483 boxname=wulflinc3 idbench=1299 idsolver=15 numberseed=0
MD5SUM SOLVER: 34d34154b8ad81f02ee98439942e0814  /oldhome/oroussel/solvers/minisat+_script
MD5SUM BENCH:  16cce9479fbccbb902b090a1fce13788  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-khb05250.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-khb05250.opb
IDLAUNCH: 22483
/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:        902264 kB
Buffers:          3644 kB
Cached:         109220 kB
SwapCached:         16 kB
Active:          37488 kB
Inactive:        78056 kB
HighTotal:      131008 kB
HighFree:        18060 kB
LowTotal:       903652 kB
LowFree:        884204 kB
SwapTotal:     2097136 kB
SwapFree:      2096784 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6576 kB
Slab:            11104 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-25 21:55:48 (client local time) WITH STATUS 20 IN 0.25696 SECONDS
stats: 22483 7 0.25696 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
s UNSATISFIABLE
c _______________________________________________________________________________
c 
c restarts              : 0
c conflicts             : 0              (0 /sec)
c decisions             : 0              (0 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 0.206968 s
c _______________________________________________________________________________
#### 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): 0.92 0.96 0.91 2/54 4761
Raw data (stat): 4761 (runsolver) R 4760 20224 20223 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 784056241 1052672 99 4294967295 134512640 135381576 3221224480 3221219688 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+0.269248 s]
Raw data (loadavg): 0.92 0.96 0.91 1/53 4765
Raw data (stat): 4761 (runsolver) R 4760 20224 20223 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 784056241 1052672 99 4294967295 134512640 135381576 3221224480 3221219688 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): 0.268963
CPU time (s): 0.25696
CPU user time (s): 0.210967
CPU system time (s): 0.045993
CPU usage (%): 95.5373
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####