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:
  1. 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.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
  3. 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.
  4. 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

Namenormalized-opb/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-pilot87.opb
MD5SUM867c3fb6ec2e95bf03283295db1251ec
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 11677
Biggest coefficient in the objective function 1769666112389120
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 75483970843122814
Number of bits of the sum of numbers in the objective function 57
Biggest number in a constraint 536870912000000000
Number of bits of the biggest number in a constraint 59
Biggest sum of numbers in a constraint 1323519003456940521
Number of bits of the biggest sum of numbers61
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.02684
Number of variables113921
Total number of constraints3645
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints3645
Minimum length of a constraint10
Maximum length of a constraint8647

Trace number 28824 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc22 THE 2005-05-25 04:19:32 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11057 boxname=wulflinc22 idbench=851 idsolver=7 numberseed=0
MD5SUM SOLVER: d9a5994a76be78982e492b397ce73911  /oldhome/oroussel/solvers/Pueblo
MD5SUM BENCH:  867c3fb6ec2e95bf03283295db1251ec  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-pilot87.opb
REAL COMMAND:  Pueblo /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-pilot87.opb
IDLAUNCH: 11057
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.031
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	: 3
cpu MHz		: 451.031
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:        819752 kB
Buffers:         10016 kB
Cached:         181752 kB
SwapCached:        400 kB
Active:          63804 kB
Inactive:       130172 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        819500 kB
SwapTotal:     2097892 kB
SwapFree:      2096804 kB
Dirty:               4 kB
Writeback:           0 kB
Mapped:           5576 kB
Slab:            15368 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 04:19:34 (client local time) WITH STATUS 0 IN 0.223965 SECONDS
stats: 11057 7 0.223965 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Pueblo version 1.2 (Sept 2004)
c Developed @ University of Michigan, Ann Arbor, MI
c  by Hossein Sheini
c /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-pilot87.opb:4887: numeric constant `2743746560' out of range (2147483647)
s UNKNOWN
#### 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): 0.82 0.95 0.96 1/54 31564
Raw data (stat): 31564 (runsolver) D 31563 23310 23309 0 -1 64 4 0 0 0 0 0 0 0 18 0 1 0 835945831 1052672 99 4294967295 134512640 135381576 3221224496 3221219716 135158418 0 2147483391 7 90112 3225161850 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+0.258524 s]
Raw data (loadavg): 0.82 0.95 0.96 1/53 31564
Raw data (stat): 31564 (runsolver) D 31563 23310 23309 0 -1 64 4 0 0 0 0 0 0 0 18 0 1 0 835945831 1052672 99 4294967295 134512640 135381576 3221224496 3221219716 135158418 0 2147483391 7 90112 3225161850 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 0
Real time (s): 0.258249
CPU time (s): 0.223965
CPU user time (s): 0.218966
CPU system time (s): 0.004999
CPU usage (%): 86.7244
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####