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-g4x4.opb
MD5SUM86076c854d7a3787e909491096d2ae43
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 4
Optimality of the best value was proved NO
Number of terms in the objective function 16
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 16
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 16
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 benchmark0.008998
Number of variables16
Total number of constraints16
Number of constraints which are clauses16
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 constraint5

Trace number 6428 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc18 THE 2005-04-14 05:16:57 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4923 boxname=wulflinc18 idbench=379 idsolver=9 numberseed=0
MD5SUM SOLVER: daf345f6fbf228671abfac48013b9cac  /oldhome/oroussel/solvers/sat4jPseudo.jar
MD5SUM BENCH:  86076c854d7a3787e909491096d2ae43  /oldhome/oroussel/tmp/wulflinc18/normalized-g4x4.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudo.jar /oldhome/oroussel/tmp/wulflinc18/normalized-g4x4.opb
IDLAUNCH: 4923
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
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		: 451.177
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:        849876 kB
Buffers:         35464 kB
Cached:         113136 kB
SwapCached:        320 kB
Active:          56744 kB
Inactive:        94984 kB
HighTotal:      131008 kB
HighFree:        13972 kB
LowTotal:       903652 kB
LowFree:        835904 kB
SwapTotal:     2097892 kB
SwapFree:      2097572 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6936 kB
Slab:            27332 kB
Committed_AS:    63700 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-14 05:16:59 (client local time) WITH STATUS 30 IN 1.3308 SECONDS
stats: 4923 0 1.3308 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c solving /oldhome/oroussel/tmp/wulflinc18/normalized-g4x4.opb
c reading problem 
c [nbvar=16]
c [nbconstr=16]
c time 0.292
c #vars     16
c #clauses  16
c starts	: 0
c conflicts	: 0
c decisions	: 0
c propagations	: 0
c inspects	: 0
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 0
c root simplifications	: 0
c SATISFIABLE
c OPTIMIZING...
c 
c CURRENT OPTIMUM=6
c Current CPU time (ms) : 0.315
c starts	: 1
c conflicts	: 0
c decisions	: 10
c propagations	: 16
c inspects	: 27
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 0
c root simplifications	: 1
c 
c CURRENT OPTIMUM=5
c Current CPU time (ms) : 0.442
c starts	: 2
c conflicts	: 3
c decisions	: 23
c propagations	: 48
c inspects	: 73
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 3
c root simplifications	: 2
c 
c CURRENT OPTIMUM=4
c Current CPU time (ms) : 0.458
c starts	: 3
c conflicts	: 3
c decisions	: 33
c propagations	: 64
c inspects	: 112
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 3
c root simplifications	: 3
c Total CPU time (ms) : 0.506
c 
s OPTIMUM FOUND
v -x1 -x2 x3 -x4 x5 -x6 -x7 -x8 -x9 -x10 -x11 x12 -x13 x14 -x15 -x16 
c objectif function=4
#### 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 0.91 2/55 30436
Raw data (stat): 30436 (runsolver) R 30435 20024 20023 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 481995999 1052672 99 4294967295 134512640 135381576 3221224448 3221219696 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+1.20037 s]
Raw data (loadavg): 0.85 0.97 0.91 1/54 30450
Raw data (stat): 30436 (runsolver) R 30435 20024 20023 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 481995999 1052672 99 4294967295 134512640 135381576 3221224448 3221219696 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): 1.20006
CPU time (s): 1.3308
CPU user time (s): 1.24681
CPU system time (s): 0.083987
CPU usage (%): 110.894
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	4
#### END VERIFIER DATA ####