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/MIPLIB/miplib/normalized-mps-v2-20-10-stein15.opb
MD5SUM1ba73005c8de78676c6470b921b3912e
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 9
Optimality of the best value was proved NO
Number of terms in the objective function 15
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 15
Number of bits of the sum of numbers in the objective function 4
Biggest number in a constraint 7
Number of bits of the biggest number in a constraint 3
Biggest sum of numbers in a constraint 22
Number of bits of the biggest sum of numbers5
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
Number of variables15
Total number of constraints51
Number of constraints which are clauses35
Number of constraints which are cardinality constraints (but not clauses)16
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint15

Trace number 26555 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc12 THE 2005-05-24 16:29:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=12318 boxname=wulflinc12 idbench=948 idsolver=7 numberseed=0
MD5SUM SOLVER: d9a5994a76be78982e492b397ce73911  /oldhome/oroussel/solvers/Pueblo
MD5SUM BENCH:  1ba73005c8de78676c6470b921b3912e  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-stein15.opb
REAL COMMAND:  Pueblo /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-stein15.opb
IDLAUNCH: 12318
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.091
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	: 2
cpu MHz		: 451.091
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:        873948 kB
Buffers:         35876 kB
Cached:         104316 kB
SwapCached:        568 kB
Active:          60688 kB
Inactive:        81888 kB
HighTotal:      131008 kB
HighFree:        22960 kB
LowTotal:       903652 kB
LowFree:        850988 kB
SwapTotal:     2097136 kB
SwapFree:      2096076 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5672 kB
Slab:            12568 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 16:29:35 (client local time) WITH STATUS 30 IN 0.031995 SECONDS
stats: 12318 0 0.031995 30
#### 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 Solving: /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-stein15.opb
c #variables read: 15 - #constraints read: 52
c optimum objective found = 9
s OPTIMUM FOUND
v -V0001_bit0 -V0002_bit0 -V0003_bit0 -V0004_bit0 -V0005_bit0 V0006_bit0 V0007_bit0 V0008_bit0 V0009_bit0 V0010_bit0 -V0011_bit0 V0012_bit0 V0013_bit0 V0014_bit0 V0015_bit0 
#### 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): 0.85 0.97 0.98 2/54 1300
Raw data (stat): 1300 (runsolver) R 1299 32284 32283 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 773458321 1052672 99 4294967295 134512640 135381576 3221224496 3221219716 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+0.040845 s]
Raw data (loadavg): 0.85 0.97 0.98 1/53 1300
Raw data (stat): 1300 (runsolver) R 1299 32284 32283 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 773458321 1052672 99 4294967295 134512640 135381576 3221224496 3221219716 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 30
Real time (s): 0.0406
CPU time (s): 0.031995
CPU user time (s): 0.025996
CPU system time (s): 0.005999
CPU usage (%): 78.8054
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	9
#### END VERIFIER DATA ####