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/sorensson/garden/normalized-g2x2.opb
MD5SUM276f089932f6c452fdc3e3b93f688af7
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
Optimality of the best value was proved NO
Number of terms in the objective function 4
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 4
Number of bits of the sum of numbers in the objective function 3
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 4
Number of bits of the biggest sum of numbers3
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.004998
Number of variables4
Total number of constraints4
Number of constraints which are clauses4
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint3
Maximum length of a constraint3

Trace number 29357 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc10 THE 2005-05-25 07:16:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=20788 boxname=wulflinc10 idbench=378 idsolver=14 numberseed=0
MD5SUM SOLVER: d29da23ec752be69e0579424c0f0767e  /oldhome/oroussel/solvers/sat4jPseudoBis.jar
MD5SUM BENCH:  276f089932f6c452fdc3e3b93f688af7  /oldhome/oroussel/tmp/wulflinc10/normalized-g2x2.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudoBis.jar /oldhome/oroussel/tmp/wulflinc10/normalized-g2x2.opb
IDLAUNCH: 20788
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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	: 2
cpu MHz		: 450.999
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:        856680 kB
Buffers:         22660 kB
Cached:         133580 kB
SwapCached:         92 kB
Active:          36116 kB
Inactive:       122736 kB
HighTotal:      131008 kB
HighFree:         1512 kB
LowTotal:       903652 kB
LowFree:        855168 kB
SwapTotal:     2097136 kB
SwapFree:      2096752 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           6392 kB
Slab:            13436 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-25 07:16:13 (client local time) WITH STATUS 30 IN 1.14182 SECONDS
stats: 20788 0 1.14182 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c SAT4J: a SATisfiability library for Java (c) 2004-2005 Daniel Le Berre
c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
c version Special PB05 Second trial
c --- Begin Solver configuration ---
c org.sat4j.minisat.uip.FirstUIP@1e4cbc4
c org.sat4j.minisat.constraints.PBMinDataStructure@1fdc96c
c org.sat4j.minisat.learning.MiniSATLearning@b2fd8f
c conflictBoundIncFactor=1.5 learntBoundIncFactor=1.1 initLearntBoundConstraintFactor=0.5 initConflictBound=100 
c 
c --- End Solver configuration ---
c solving /oldhome/oroussel/tmp/wulflinc10/normalized-g2x2.opb
c reading problem ... done. Time 0.105 ms.
c #vars     4
c #constraints  4
c SATISFIABLE
c OPTIMIZING...
c CURRENT OPTIMUM=                   2 		Current CPU time: 0.12 ms
c starts	: 2
c conflicts	: 3
c decisions	: 5
c propagations	: 12
c inspects	: 24
c learned literals	: 2
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 0
c root simplifications	: 3
s OPTIMUM_FOUND
v -x1 -x2 x3 x4 
c objectif function=2
c Total CPU time (ms) : 0.173
#### 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 0.99 2/54 28430
Raw data (stat): 28430 (runsolver) R 28429 15547 15546 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 778798681 1052672 99 4294967295 134512640 135381576 3221224416 3221219636 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+1.14003 s]
Raw data (loadavg): 0.85 0.97 0.99 1/53 28442
Raw data (stat): 28430 (runsolver) R 28429 15547 15546 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 778798681 1052672 99 4294967295 134512640 135381576 3221224416 3221219636 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 30
Real time (s): 1.13974
CPU time (s): 1.14182
CPU user time (s): 1.06084
CPU system time (s): 0.080987
CPU usage (%): 100.183
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	2
#### END VERIFIER DATA ####