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-aim-50-1_6-yes1-2.opb
MD5SUM731fe7ffe7fc5610b21439e47286bff8
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 50
Optimality of the best value was proved NO
Number of terms in the objective function 100
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 100
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 100
Number of bits of the biggest sum of numbers7
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008997
Number of variables100
Total number of constraints130
Number of constraints which are clauses130
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 constraint2
Maximum length of a constraint3

Trace number 23678 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-04 13:14:17 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=965 boxname=wulflinc31 idbench=108 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  731fe7ffe7fc5610b21439e47286bff8  /oldhome/oroussel/tmp/wulflinc31/normalized-aim-50-1_6-yes1-2.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc31/normalized-aim-50-1_6-yes1-2.opb
IDLAUNCH: 965
/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:        909516 kB
Buffers:         43612 kB
Cached:          59144 kB
SwapCached:        944 kB
Active:          84640 kB
Inactive:        20552 kB
HighTotal:      131008 kB
HighFree:        70840 kB
LowTotal:       903652 kB
LowFree:        838676 kB
SwapTotal:     2097892 kB
SwapFree:      2096432 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           5540 kB
Slab:            14236 kB
Committed_AS:    63656 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-04 13:14:18 (client local time) WITH STATUS 30 IN 0.636902 SECONDS
stats: 965 0 0.636902 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 100 variables and 130 constraints.
c After prepocess the problem consists of 100 variables and 130 constraints.
c preprocess terminated 0.048 s
c Initial Lower Bound: 32
c Lower Bound Elapsed time: 0.054
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 50 @ 0.61
s OPTIMUM FOUND
v -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 x27 -x28 -x29 x30 -x31 x32 -x33 x34 -x35 x36 x37 -x38 -x39 x40 -x41 x42 -x43 x44 x45 -x46 -x47 x48 x49 -x50 x51 -x52 x53 -x54 -x55 x56 x57 -x58 x59 -x60 x61 -x62 -x63 x64 x65 -x66 x67 -x68 x69 -x70 x71 -x72 -x73 x74 x75 -x76 x77 -x78 x79 -x80 x81 -x82 x83 -x84 -x85 x86 x87 -x88 -x89 x90 x91 -x92 -x93 x94 x95 -x96 -x97 x98 x99 -x100 
c Exit Code: 30
c Total time: 0.611 s
#### 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): 0.63 0.85 0.87 2/54 27640
Raw data (stat): 27640 (runsolver) R 27639 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 657675147 1056768 100 4294967295 134512640 135381576 3221221680 3221216896 135158418 0 2147483391 1 90112 0 0 0 17 0 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+0.681412 s]
Raw data (loadavg): 0.63 0.85 0.87 1/53 27640
Raw data (stat): 27640 (runsolver) R 27639 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 657675147 1056768 100 4294967295 134512640 135381576 3221221680 3221216896 135158418 0 2147483391 1 90112 0 0 0 17 0 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 0

Child status: 30
Real time (s): 0.681114
CPU time (s): 0.636902
CPU user time (s): 0.58791
CPU system time (s): 0.048992
CPU usage (%): 93.5089
Max. virtual memory (Kb): 1032
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	50
#### END VERIFIER DATA ####