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/manquinho/primes-dimacs-cnf/normalized-ssa2670-141.opb
MD5SUM423b72910a463b7aa4b9bdae86b878a8
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 1972
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 1972
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 1972
Number of bits of the biggest sum of numbers11
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.158974
Number of variables1972
Total number of constraints3301
Number of constraints which are clauses3301
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 constraint1
Maximum length of a constraint5

Trace number 29205 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-05-25 05:50:15 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=20635 boxname=wulflinc6 idbench=225 idsolver=14 numberseed=0
MD5SUM SOLVER: d29da23ec752be69e0579424c0f0767e  /oldhome/oroussel/solvers/sat4jPseudoBis.jar
MD5SUM BENCH:  423b72910a463b7aa4b9bdae86b878a8  /oldhome/oroussel/tmp/wulflinc6/normalized-ssa2670-141.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudoBis.jar /oldhome/oroussel/tmp/wulflinc6/normalized-ssa2670-141.opb
IDLAUNCH: 20635
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        848324 kB
Buffers:         19256 kB
Cached:         142444 kB
SwapCached:        412 kB
Active:          65320 kB
Inactive:        98704 kB
HighTotal:      131008 kB
HighFree:        35028 kB
LowTotal:       903652 kB
LowFree:        813296 kB
SwapTotal:     2097136 kB
SwapFree:      2096036 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5692 kB
Slab:            16748 kB
Committed_AS:    63732 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-25 05:50:27 (client local time) WITH STATUS 20 IN 17.4783 SECONDS
stats: 20635 7 17.4783 20
#### 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/wulflinc6/normalized-ssa2670-141.opb
c reading problem ... done. Time 4.496 ms.
c #vars     1972
c #constraints  3301
c starts	: 2
c conflicts	: 230
c decisions	: 865
c propagations	: 48860
c inspects	: 87350
c learned literals	: 0
c learned binary clauses	: 13
c learned ternary clauses	: 16
c learned clauses	: 229
c root simplifications	: 10
s UNSATISFIABLE
c Total CPU time (ms) : 10.561
#### 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): 0.99 1.00 1.00 2/54 4193
Raw data (stat): 4193 (runsolver) R 4192 25568 25567 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 778268928 1052672 99 4294967295 134512640 135381576 3221224416 3221219636 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+10.0007 s]
Raw data (loadavg): 1.07 1.02 1.00 2/64 4203
Raw data (stat): 4193 (java) R 4192 25568 25567 0 -1 0 18098 0 1 0 727 41 0 0 25 0 11 0 778268928 858378240 20364 4294967295 134512640 134569956 3221224384 3221214704 1131292773 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 209565 20364 13086 16 0 209549 0
vsize: 838260
[startup+11.5509 s]
Raw data (loadavg): 1.07 1.02 1.00 1/53 4204
Raw data (stat): 4193 (java) R 4192 25568 25567 0 -1 0 18098 0 1 0 727 41 0 0 25 0 11 0 778268928 858378240 20364 4294967295 134512640 134569956 3221224384 3221214704 1131292773 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 209565 20364 13086 16 0 209549 0
vsize: 0

Child status: 20
Real time (s): 11.5507
CPU time (s): 17.4783
CPU user time (s): 16.9374
CPU system time (s): 0.540917
CPU usage (%): 151.319
Max. virtual memory (Kb): 838260
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####