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/submitted/een/normalized-stein27.opb
MD5SUMf1840a9f0b03b6ae7284b9e5be9bb3b7
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 18
Optimality of the best value was proved NO
Number of terms in the objective function 27
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 27
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 13
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 40
Number of bits of the biggest sum of numbers6
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.02084
Number of variables27
Total number of constraints118
Number of constraints which are clauses117
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint3
Maximum length of a constraint27

Trace number 25130 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-17 00:55:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=5168 boxname=wulflinc31 idbench=398 idsolver=7 numberseed=0
MD5SUM SOLVER: d9a5994a76be78982e492b397ce73911  /oldhome/oroussel/solvers/Pueblo
MD5SUM BENCH:  f1840a9f0b03b6ae7284b9e5be9bb3b7  /oldhome/oroussel/tmp/wulflinc31/normalized-stein27.opb
REAL COMMAND:  Pueblo /oldhome/oroussel/tmp/wulflinc31/normalized-stein27.opb
IDLAUNCH: 5168
/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:        766668 kB
Buffers:         51936 kB
Cached:         186832 kB
SwapCached:       1952 kB
Active:         202744 kB
Inactive:        44964 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        766416 kB
SwapTotal:     2097892 kB
SwapFree:      2095228 kB
Dirty:               4 kB
Writeback:           0 kB
Mapped:           5380 kB
Slab:            14632 kB
Committed_AS:    63840 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-17 00:55:43 (client local time) WITH STATUS 30 IN 3.74843 SECONDS
stats: 5168 0 3.74843 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/wulflinc31/normalized-stein27.opb
c #variables read: 27 - #constraints read: 119
c optimum objective found = 18
s OPTIMUM FOUND
v -x0 -x1 -x2 x3 x4 x5 -x6 x7 x8 -x9 -x10 x11 -x12 x13 x14 x15 -x16 x17 x18 x19 x20 x21 x22 x23 x24 -x25 x26 
#### 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): 0.81 0.93 0.97 2/55 19279
Raw data (stat): 19279 (runsolver) R 19278 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 765575654 1056768 100 4294967295 134512640 135381576 3221221696 3221216920 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+3.77307 s]
Raw data (loadavg): 0.81 0.93 0.97 1/54 19279
Raw data (stat): 19279 (runsolver) R 19278 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 765575654 1056768 100 4294967295 134512640 135381576 3221221696 3221216920 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 status: 30
Real time (s): 3.77279
CPU time (s): 3.74843
CPU user time (s): 3.69744
CPU system time (s): 0.050992
CPU usage (%): 99.3544
Max. virtual memory (Kb): 1032
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	18
#### END VERIFIER DATA ####