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-misc04.opb
MD5SUM	8f93517b37e3e8e201991f7d854ddab3
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	21
Biggest coefficient in the objective function	1048576
Number of bits for the biggest coefficient in the objective function	21
Sum of the numbers in the objective function	2097151
Number of bits of the sum of numbers in the objective function	21
Biggest number in a constraint	42171551460515200
Number of bits of the biggest number in a constraint	56
Biggest sum of numbers in a constraint	130719213204604475
Number of bits of the biggest sum of numbers	57
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	2.79057
Number of variables	97606
Total number of constraints	1755
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	45
Number of constraints which are nor clauses,nor cardinality constraints	1710
Minimum length of a constraint	1
Maximum length of a constraint	3381

Trace number 25877

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-23 03:45:58 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16966 boxname=wulflinc31 idbench=1306 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  8f93517b37e3e8e201991f7d854ddab3  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-misc04.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-misc04.opb
IDLAUNCH: 16966
/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:        476124 kB
Buffers:          5884 kB
Cached:         521976 kB
SwapCached:        976 kB
Active:          62040 kB
Inactive:       467960 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        475872 kB
SwapTotal:     2097892 kB
SwapFree:      2095884 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5096 kB
Slab:            22736 kB
Committed_AS:    63860 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-23 03:45:58 (client local time) WITH STATUS 0 IN 0.088986 SECONDS
stats: 16966 7 0.088986 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
#### 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): 0.94 0.97 0.99 2/55 1559
Raw data (stat): 1559 (runsolver) R 1558 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 818443637 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 135158418 0 2147483391 1 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+0.136215 s]
Raw data (loadavg): 0.94 0.97 0.99 1/54 1559
Raw data (stat): 1559 (runsolver) R 1558 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 818443637 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 135158418 0 2147483391 1 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 0.135885
CPU time (s): 0.088986
CPU user time (s): 0.056991
CPU system time (s): 0.031995
CPU usage (%): 65.4863
Max. virtual memory (Kb): 1032
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####