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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-gfrd-pnc.opb
MD5SUM	f72ff83237646045e70c745d89efd15d
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	18728
Biggest coefficient in the objective function	1050225536
Number of bits for the biggest coefficient in the objective function	30
Sum of the numbers in the objective function	456113132475
Number of bits of the sum of numbers in the objective function	39
Biggest number in a constraint	1050225536
Number of bits of the biggest number in a constraint	30
Biggest sum of numbers in a constraint	456113132475
Number of bits of the biggest sum of numbers	39
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.146977
Number of variables	18774
Total number of constraints	874
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	874
Minimum length of a constraint	8
Maximum length of a constraint	168

Trace number 26043

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-23 21:47:20 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=15848 boxname=wulflinc31 idbench=1220 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  f72ff83237646045e70c745d89efd15d  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-gfrd-pnc.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-gfrd-pnc.opb
IDLAUNCH: 15848
/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:        779544 kB
Buffers:          9868 kB
Cached:         224400 kB
SwapCached:       1352 kB
Active:         172780 kB
Inactive:        64052 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        779292 kB
SwapTotal:     2097892 kB
SwapFree:      2095532 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            12720 kB
Committed_AS:    63860 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-23 21:48:20 (client local time) WITH STATUS 20 IN 60.0789 SECONDS
stats: 15848 7 60.0789 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 18774 variables and 1404 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 60.027 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): 0.83 0.83 0.85 2/55 18343
Raw data (stat): 18343 (runsolver) R 18342 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 824932581 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+10.0008 s]
Raw data (loadavg): 0.86 0.84 0.85 2/55 18343
Raw data (stat): 18343 (bsolo_lpr) R 18342 7876 7672 0 -1 0 2490 0 0 0 989 6 0 0 25 0 1 0 824932581 22974464 2413 4294967295 134512640 134714508 3221221776 3221218300 1077195880 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 5609 2413 1111 63 0 5546 0
vsize: 22436
[startup+20.0017 s]
Raw data (loadavg): 0.88 0.84 0.86 2/55 18343
Raw data (stat): 18343 (bsolo_lpr) R 18342 7876 7672 0 -1 0 4663 0 0 0 1983 12 0 0 25 0 1 0 824932581 31883264 4586 4294967295 134512640 134714508 3221221776 3221220432 134527932 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 7784 4586 1111 63 0 7721 0
vsize: 31136
[startup+30.0016 s]
Raw data (loadavg): 0.90 0.85 0.86 2/55 18343
Raw data (stat): 18343 (bsolo_lpr) R 18342 7876 7672 0 -1 0 7211 0 0 0 2979 17 0 0 25 0 1 0 824932581 42438656 7134 4294967295 134512640 134714508 3221221776 3221220004 1077414413 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 10361 7134 1111 63 0 10298 0
vsize: 41444
[startup+40.0015 s]
Raw data (loadavg): 0.91 0.85 0.86 2/55 18343
Raw data (stat): 18343 (bsolo_lpr) R 18342 7876 7672 0 -1 0 9897 0 0 0 3974 22 0 0 25 0 1 0 824932581 53436416 9820 4294967295 134512640 134714508 3221221776 3221220004 1077414370 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 13046 9820 1111 63 0 12983 0
vsize: 52184
[startup+50.0015 s]
Raw data (loadavg): 0.92 0.86 0.86 2/55 18343
Raw data (stat): 18343 (bsolo_lpr) R 18342 7876 7672 0 -1 0 12972 0 0 0 4969 26 0 0 25 0 1 0 824932581 66101248 12895 4294967295 134512640 134714508 3221221776 3221220432 134527946 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 16138 12895 1111 63 0 16075 0
vsize: 64552
[startup+60.0025 s]
Raw data (loadavg): 0.94 0.86 0.86 2/55 18343
Raw data (stat): 18343 (bsolo_lpr) R 18342 7876 7672 0 -1 0 16957 0 0 0 5960 35 0 0 25 0 1 0 824932581 82382848 16880 4294967295 134512640 134714508 3221221776 3221218396 1077244613 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 20113 16880 1111 63 0 20050 0
vsize: 80452
[startup+60.1171 s]
Raw data (loadavg): 0.94 0.86 0.86 1/54 18343
Raw data (stat): 18343 (bsolo_lpr) R 18342 7876 7672 0 -1 0 16957 0 0 0 5960 35 0 0 25 0 1 0 824932581 82382848 16880 4294967295 134512640 134714508 3221221776 3221218396 1077244613 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 20113 16880 1111 63 0 20050 0
vsize: 0

Child status: 20
Real time (s): 60.1168
CPU time (s): 60.0789
CPU user time (s): 59.6609
CPU system time (s): 0.417936
CPU usage (%): 99.9369
Max. virtual memory (Kb): 80452
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####