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/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-20-10-nazareth.opb
MD5SUM1d16d9273da855e9ddf9502b6d199f2a
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -1073741823
Optimality of the best value was proved NO
Number of terms in the objective function 78
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 3221356541
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 5368724480
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 20401110007
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.18697
Number of variables78
Total number of constraints3
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints3
Minimum length of a constraint17
Maximum length of a constraint61

Trace number 29764 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc19 THE 2005-05-25 11:40:04 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=21196 boxname=wulflinc19 idbench=1184 idsolver=14 numberseed=0
MD5SUM SOLVER: d29da23ec752be69e0579424c0f0767e  /oldhome/oroussel/solvers/sat4jPseudoBis.jar
MD5SUM BENCH:  1d16d9273da855e9ddf9502b6d199f2a  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-nazareth.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudoBis.jar /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-nazareth.opb
IDLAUNCH: 21196
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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	: 3
cpu MHz		: 451.037
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:        485504 kB
Buffers:         33620 kB
Cached:         488748 kB
SwapCached:        416 kB
Active:          49952 kB
Inactive:       474716 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        485252 kB
SwapTotal:     2097892 kB
SwapFree:      2096804 kB
Dirty:              60 kB
Writeback:           0 kB
Mapped:           5676 kB
Slab:            18816 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 11:40:08 (client local time) WITH STATUS 30 IN 3.36649 SECONDS
stats: 21196 0 3.36649 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/wulflinc19/normalized-mps-v2-20-10-nazareth.opb
c reading problem ... done. Time 0.171 ms.
c #vars     78
c #constraints  3
c SATISFIABLE
c OPTIMIZING...
c CURRENT OPTIMUM=                   0 		Current CPU time: 0.19 ms
c CURRENT OPTIMUM=          -536870912 		Current CPU time: 0.36 ms
c CURRENT OPTIMUM=          -805306368 		Current CPU time: 0.63 ms
c CURRENT OPTIMUM=          -939524096 		Current CPU time: 0.68 ms
c CURRENT OPTIMUM=         -1006632960 		Current CPU time: 0.73 ms
c CURRENT OPTIMUM=         -1040187392 		Current CPU time: 0.78 ms
c CURRENT OPTIMUM=         -1056964608 		Current CPU time: 0.86 ms
c CURRENT OPTIMUM=         -1065353216 		Current CPU time: 0.94 ms
c CURRENT OPTIMUM=         -1069547520 		Current CPU time: 0.99 ms
c CURRENT OPTIMUM=         -1071644672 		Current CPU time: 1.03 ms
c CURRENT OPTIMUM=         -1072693248 		Current CPU time: 1.08 ms
c CURRENT OPTIMUM=         -1073217536 		Current CPU time: 1.12 ms
c CURRENT OPTIMUM=         -1073479680 		Current CPU time: 1.16 ms
c CURRENT OPTIMUM=         -1073610752 		Current CPU time: 1.21 ms
c CURRENT OPTIMUM=         -1073676288 		Current CPU time: 1.25 ms
c CURRENT OPTIMUM=         -1073709056 		Current CPU time: 1.29 ms
c CURRENT OPTIMUM=         -1073725440 		Current CPU time: 1.32 ms
c CURRENT OPTIMUM=         -1073733632 		Current CPU time: 1.36 ms
c CURRENT OPTIMUM=         -1073737728 		Current CPU time: 1.41 ms
c CURRENT OPTIMUM=         -1073739776 		Current CPU time: 1.44 ms
c CURRENT OPTIMUM=         -1073740800 		Current CPU time: 1.47 ms
c CURRENT OPTIMUM=         -1073741312 		Current CPU time: 1.68 ms
c CURRENT OPTIMUM=         -1073741568 		Current CPU time: 1.71 ms
c CURRENT OPTIMUM=         -1073741696 		Current CPU time: 1.99 ms
c CURRENT OPTIMUM=         -1073741760 		Current CPU time: 2.02 ms
c CURRENT OPTIMUM=         -1073741792 		Current CPU time: 2.05 ms
c CURRENT OPTIMUM=         -1073741808 		Current CPU time: 2.08 ms
c CURRENT OPTIMUM=         -1073741816 		Current CPU time: 2.10 ms
c CURRENT OPTIMUM=         -1073741820 		Current CPU time: 2.11 ms
c CURRENT OPTIMUM=         -1073741822 		Current CPU time: 2.12 ms
c CURRENT OPTIMUM=         -1073741823 		Current CPU time: 2.19 ms
c starts	: 31
c conflicts	: 0
c decisions	: 1321
c propagations	: 1457
c inspects	: 847
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 0
c root simplifications	: 31
s OPTIMUM_FOUND
v -CLNAM1_bit_10 -CLNAM1_bit_9 -CLNAM1_bit_8 -CLNAM1_bit_7 -CLNAM1_bit_6 -CLNAM1_bit_5 -CLNAM1_bit_4 -CLNAM1_bit_3 -CLNAM1_bit_2 -CLNAM1_bit_1 -CLNAM1_bit0 -CLNAM1_bit1 -CLNAM1_bit2 -CLNAM1_bit3 -CLNAM1_bit4 -CLNAM1_bit5 -CLNAM1_bit6 CLNAM2_bit_10 CLNAM2_bit_9 CLNAM2_bit_8 CLNAM2_bit_7 CLNAM2_bit_6 CLNAM2_bit_5 CLNAM2_bit_4 CLNAM2_bit_3 CLNAM2_bit_2 CLNAM2_bit_1 CLNAM2_bit0 CLNAM2_bit1 CLNAM2_bit2 CLNAM2_bit3 CLNAM2_bit4 CLNAM2_bit5 CLNAM2_bit6 CLNAM2_bit7 CLNAM2_bit8 CLNAM2_bit9 CLNAM2_bit10 CLNAM2_bit11 CLNAM2_bit12 CLNAM2_bit13 CLNAM2_bit14 CLNAM2_bit15 CLNAM2_bit16 CLNAM2_bit17 CLNAM2_bit18 CLNAM2_bit19 -CLNAM3_bit_10 -CLNAM3_bit_9 -CLNAM3_bit_8 -CLNAM3_bit_7 -CLNAM3_bit_6 -CLNAM3_bit_5 -CLNAM3_bit_4 -CLNAM3_bit_3 -CLNAM3_bit_2 -CLNAM3_bit_1 -CLNAM3_bit0 -CLNAM3_bit1 -CLNAM3_bit2 -CLNAM3_bit3 -CLNAM3_bit4 -CLNAM3_bit5 -CLNAM3_bit6 -CLNAM3_bit7 -CLNAM3_bit8 -CLNAM3_bit9 -CLNAM3_bit10 -CLNAM3_bit11 -CLNAM3_bit12 -CLNAM3_bit13 -CLNAM3_bit14 -CLNAM3_bit15 -CLNAM3_bit16 -CLNAM3_bit17 -CLNAM3_bit18 -CLNAM3_bit19 -CLNAM3_bit20 
c objectif function=-1073741823
c Total CPU time (ms) : 2.204
#### 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): 0.92 0.98 0.99 2/54 23231
Raw data (stat): 23231 (runsolver) R 23230 10795 10794 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 838582921 1052672 99 4294967295 134512640 135381576 3221224400 3221219620 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+3.48072 s]
Raw data (loadavg): 1.01 1.00 1.00 1/53 23272
Raw data (stat): 23231 (runsolver) R 23230 10795 10794 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 838582921 1052672 99 4294967295 134512640 135381576 3221224400 3221219620 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): 3.4804
CPU time (s): 3.36649
CPU user time (s): 3.17752
CPU system time (s): 0.188971
CPU usage (%): 96.7269
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	-1073741823
#### END VERIFIER DATA ####