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 25965

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-23 16:18:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16381 boxname=wulflinc31 idbench=1261 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  6ed5be5611955015db1d7f0a8e864c5a  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-shell.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-shell.opb
IDLAUNCH: 16381
/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:        816052 kB
Buffers:         25696 kB
Cached:         169948 kB
SwapCached:        944 kB
Active:         139208 kB
Inactive:        58540 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        815800 kB
SwapTotal:     2097892 kB
SwapFree:      2095920 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            15156 kB
Committed_AS:    63860 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-23 16:20:35 (client local time) WITH STATUS 20 IN 142.253 SECONDS
stats: 16381 7 142.253 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 30807 variables and 1181 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 142.181 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): 0.91 0.95 0.90 2/55 10659
Raw data (stat): 10659 (runsolver) R 10658 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 822957651 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+10.0002 s]
Raw data (loadavg): 0.92 0.95 0.90 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 1568 0 0 0 990 5 0 0 25 0 1 0 822957651 19050496 1491 4294967295 134512640 134714508 3221221776 3221220004 1077414338 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 4651 1491 1111 63 0 4588 0
vsize: 18604
[startup+20.0011 s]
Raw data (loadavg): 0.93 0.95 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 2578 0 0 0 1989 7 0 0 25 0 1 0 822957651 23154688 2501 4294967295 134512640 134714508 3221221776 3221220004 1077414433 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 5653 2501 1111 63 0 5590 0
vsize: 22612
[startup+30.0011 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 3617 0 0 0 2986 10 0 0 25 0 1 0 822957651 27435008 3540 4294967295 134512640 134714508 3221221776 3221220004 1077414385 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 6698 3540 1111 63 0 6635 0
vsize: 26792
[startup+40.001 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 4758 0 0 0 3983 13 0 0 25 0 1 0 822957651 32092160 4681 4294967295 134512640 134714508 3221221776 3221220004 1077414388 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 7835 4681 1111 63 0 7772 0
vsize: 31340
[startup+50.0019 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 5963 0 0 0 4981 16 0 0 25 0 1 0 822957651 37023744 5886 4294967295 134512640 134714508 3221221776 3221220432 134527956 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 9039 5886 1111 63 0 8976 0
vsize: 36156
[startup+60.0024 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 7300 0 0 0 5978 19 0 0 25 0 1 0 822957651 42573824 7223 4294967295 134512640 134714508 3221221776 3221220004 1077414388 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 10394 7223 1111 63 0 10331 0
vsize: 41576
[startup+70.0028 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 8633 0 0 0 6975 22 0 0 25 0 1 0 822957651 48074752 8556 4294967295 134512640 134714508 3221221776 3221220004 1077414401 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 11737 8556 1111 63 0 11674 0
vsize: 46948
[startup+80.0027 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 10036 0 0 0 7972 25 0 0 25 0 1 0 822957651 53719040 9959 4294967295 134512640 134714508 3221221776 3221220432 134527930 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 13115 9959 1111 63 0 13052 0
vsize: 52460
[startup+90.0027 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 11656 0 0 0 8969 28 0 0 25 0 1 0 822957651 60452864 11579 4294967295 134512640 134714508 3221221776 3221220432 134527932 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 14759 11579 1111 63 0 14696 0
vsize: 59036
[startup+100.003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 13200 0 0 0 9966 32 0 0 25 0 1 0 822957651 66818048 13123 4294967295 134512640 134714508 3221221776 3221220004 1077414363 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 16313 13123 1111 63 0 16250 0
vsize: 65252
[startup+110.003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 14903 0 0 0 10962 35 0 0 25 0 1 0 822957651 73719808 14826 4294967295 134512640 134714508 3221221776 3221220432 134527946 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 17998 14826 1111 63 0 17935 0
vsize: 71992
[startup+120.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 16685 0 0 0 11958 39 0 0 25 0 1 0 822957651 81055744 16608 4294967295 134512640 134714508 3221221776 3221220432 134527932 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 19789 16608 1111 63 0 19726 0
vsize: 79156
[startup+130.004 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 18428 0 0 0 12955 43 0 0 25 0 1 0 822957651 88109056 18351 4294967295 134512640 134714508 3221221776 3221220432 134527930 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 21511 18351 1111 63 0 21448 0
vsize: 86044
[startup+140.004 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 23229 0 0 0 13944 55 0 0 25 0 1 0 822957651 107778048 23152 4294967295 134512640 134714508 3221221776 3221220052 1077414435 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 26313 23152 1111 63 0 26250 0
vsize: 105252
[startup+142.267 s]
Raw data (loadavg): 0.99 0.97 0.91 1/54 10659
Raw data (stat): 10659 (bsolo_lpr) R 10658 7876 7672 0 -1 0 23229 0 0 0 13944 55 0 0 25 0 1 0 822957651 107778048 23152 4294967295 134512640 134714508 3221221776 3221220052 1077414435 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 26313 23152 1111 63 0 26250 0
vsize: 0

Child status: 20
Real time (s): 142.266
CPU time (s): 142.253
CPU user time (s): 141.573
CPU system time (s): 0.679896
CPU usage (%): 99.991
Max. virtual memory (Kb): 105252
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####