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-shell.opb
MD5SUM	6ed5be5611955015db1d7f0a8e864c5a
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	27174
Biggest coefficient in the objective function	34015805440
Number of bits for the biggest coefficient in the objective function	35
Sum of the numbers in the objective function	501951111686
Number of bits of the sum of numbers in the objective function	39
Biggest number in a constraint	34015805440
Number of bits of the biggest number in a constraint	35
Biggest sum of numbers in a constraint	501951111686
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	0.220965
Number of variables	30807
Total number of constraints	653
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	653
Minimum length of a constraint	16
Maximum length of a constraint	1040

Trace number 25964

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-23 16:15:46 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16383 boxname=wulflinc31 idbench=1261 idsolver=3 numberseed=0
MD5SUM SOLVER: 03a6a792daea978e4202f78851741568  /oldhome/oroussel/solvers/bsolo_mis
MD5SUM BENCH:  6ed5be5611955015db1d7f0a8e864c5a  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-shell.opb
REAL COMMAND:  bsolo_mis /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-shell.opb
IDLAUNCH: 16383
/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:        815948 kB
Buffers:         25596 kB
Cached:         169912 kB
SwapCached:        944 kB
Active:         139148 kB
Inactive:        58492 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        815696 kB
SwapTotal:     2097892 kB
SwapFree:      2095920 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            15376 kB
Committed_AS:    63840 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-23 16:18:03 (client local time) WITH STATUS 20 IN 136.041 SECONDS
stats: 16383 7 136.041 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Initial problem consists of 30807 variables and 1181 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 135.974 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): 0.92 0.95 0.91 1/55 10566
Raw data (stat): 10566 (runsolver) D 10565 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 18 0 1 0 822943003 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 135158418 0 2147483391 1 90112 3225161850 0 0 17 0 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.0005 s]
Raw data (loadavg): 0.93 0.96 0.91 2/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 1472 0 0 0 992 4 0 0 25 0 1 0 822943003 19177472 1449 4294967295 134512640 134714540 3221221776 3221220004 1077414388 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 4682 1449 1111 63 0 4619 0
vsize: 18728
[startup+20.001 s]
Raw data (loadavg): 0.94 0.96 0.91 3/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 2525 0 0 0 1990 6 0 0 25 0 1 0 822943003 23572480 2502 4294967295 134512640 134714540 3221221776 3221220004 1077414435 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 5755 2502 1111 63 0 5692 0
vsize: 23020
[startup+30.0009 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 3659 0 0 0 2988 8 0 0 25 0 1 0 822943003 28266496 3636 4294967295 134512640 134714540 3221221776 3221220004 1077414360 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 6901 3636 1111 63 0 6838 0
vsize: 27604
[startup+40.0021 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 4896 0 0 0 3986 10 0 0 25 0 1 0 822943003 33206272 4873 4294967295 134512640 134714540 3221221776 3221220004 1077414363 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 8107 4873 1111 63 0 8044 0
vsize: 32428
[startup+50.0027 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 6204 0 0 0 4984 13 0 0 25 0 1 0 822943003 38600704 6181 4294967295 134512640 134714540 3221221776 3221220004 1077414338 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 9424 6181 1111 63 0 9361 0
vsize: 37696
[startup+60.0027 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 7585 0 0 0 5981 16 0 0 25 0 1 0 822943003 44249088 7562 4294967295 134512640 134714540 3221221776 3221220004 1077414385 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 10803 7562 1111 63 0 10740 0
vsize: 43212
[startup+70.0039 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 9024 0 0 0 6979 18 0 0 25 0 1 0 822943003 50176000 9001 4294967295 134512640 134714540 3221221776 3221220432 134527932 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 12250 9001 1111 63 0 12187 0
vsize: 49000
[startup+80.0045 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 10626 0 0 0 7976 21 0 0 25 0 1 0 822943003 56668160 10603 4294967295 134512640 134714540 3221221776 3221220004 1077414399 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 13835 10603 1111 63 0 13772 0
vsize: 55340
[startup+90.0055 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 12314 0 0 0 8973 25 0 0 25 0 1 0 822943003 63746048 12291 4294967295 134512640 134714540 3221221776 3221220432 134527930 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 15563 12291 1111 63 0 15500 0
vsize: 62252
[startup+100.006 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 13924 0 0 0 9970 28 0 0 25 0 1 0 822943003 70381568 13901 4294967295 134512640 134714540 3221221776 3221220432 134527932 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 17183 13901 1111 63 0 17120 0
vsize: 68732
[startup+110.005 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 15726 0 0 0 10966 31 0 0 25 0 1 0 822943003 77713408 15703 4294967295 134512640 134714540 3221221776 3221220432 134527932 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 18973 15703 1111 63 0 18910 0
vsize: 75892
[startup+120.006 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 17599 0 0 0 11963 35 0 0 25 0 1 0 822943003 85331968 17576 4294967295 134512640 134714540 3221221776 3221219900 1076647540 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 20833 17576 1111 63 0 20770 0
vsize: 83332
[startup+130.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 21082 0 0 0 12956 42 0 0 25 0 1 0 822943003 99532800 21059 4294967295 134512640 134714540 3221221776 3221219844 1077314309 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 24300 21059 1111 63 0 24237 0
vsize: 97200
[startup+136.069 s]
Raw data (loadavg): 0.99 0.97 0.91 1/54 10566
Raw data (stat): 10566 (bsolo_mis) R 10565 7876 7672 0 -1 0 21082 0 0 0 12956 42 0 0 25 0 1 0 822943003 99532800 21059 4294967295 134512640 134714540 3221221776 3221219844 1077314309 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 24300 21059 1111 63 0 24237 0
vsize: 0

Child status: 20
Real time (s): 136.068
CPU time (s): 136.041
CPU user time (s): 135.434
CPU system time (s): 0.606907
CPU usage (%): 99.9801
Max. virtual memory (Kb): 97200
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####