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-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-stein9.opb
MD5SUMd34c3da9b2eb4ae201c359b483f51b04
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 5
Optimality of the best value was proved NO
Number of terms in the objective function 9
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 9
Number of bits of the sum of numbers in the objective function 4
Biggest number in a constraint 4
Number of bits of the biggest number in a constraint 3
Biggest sum of numbers in a constraint 13
Number of bits of the biggest sum of numbers4
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003998
Number of variables9
Total number of constraints22
Number of constraints which are clauses12
Number of constraints which are cardinality constraints (but not clauses)10
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint9

Trace number 40308 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-08 06:37:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=28379 boxname=wulflinc2 idbench=1335 idsolver=20 numberseed=0
MD5SUM SOLVER: f6aa7fb267fa9710116626be7e6d3048  /oldhome/oroussel/solvers/bsolo_lpr-v2
MD5SUM BENCH:  d34c3da9b2eb4ae201c359b483f51b04  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-stein9.opb
REAL COMMAND:  bsolo_lpr-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-stein9.opb
IDLAUNCH: 28379
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        772632 kB
Buffers:         16672 kB
Cached:         222980 kB
SwapCached:       1340 kB
Active:          25100 kB
Inactive:       216508 kB
HighTotal:      131008 kB
HighFree:        53004 kB
LowTotal:       903652 kB
LowFree:        719628 kB
SwapTotal:     2097136 kB
SwapFree:      2094732 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4976 kB
Slab:            14852 kB
Committed_AS:    71788 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-08 06:37:36 (client local time) WITH STATUS 30 IN 0.093984 SECONDS
stats: 28379 0 0.093984 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 9 variables and 13 constraints.
c After prepocess the problem consists of 9 variables and 13 constraints.
c preprocess terminated 0.034 s
c Initial Lower Bound: 4
c Lower Bound Elapsed time: 0.0025
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 5 @ 0.054
s OPTIMUM FOUND
v V0001_bit0 -V0002_bit0 V0003_bit0 V0004_bit0 V0005_bit0 -V0006_bit0 V0007_bit0 -V0008_bit0 -V0009_bit0 
c Exit Code: 30
c Total time: 0.082 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.79 0.93 0.90 1/54 6251
Raw data (stat): 6251 (runsolver) D 6250 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 18 0 1 0 899533744 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 3225161850 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+0.109374 s]
Raw data (loadavg): 0.80 0.93 0.90 1/53 6251
Raw data (stat): 6251 (runsolver) D 6250 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 18 0 1 0 899533744 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 3225161850 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 30
Real time (s): 0.109111
CPU time (s): 0.093984
CPU user time (s): 0.05999
CPU system time (s): 0.033994
CPU usage (%): 86.1361
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	5
#### END VERIFIER DATA ####