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/een/normalized-stein27.opb
MD5SUMf1840a9f0b03b6ae7284b9e5be9bb3b7
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 18
Optimality of the best value was proved NO
Number of terms in the objective function 27
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 27
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 13
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 40
Number of bits of the biggest sum of numbers6
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.02084
Number of variables27
Total number of constraints118
Number of constraints which are clauses117
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint3
Maximum length of a constraint27

Trace number 25127 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-17 00:53:24 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=5162 boxname=wulflinc31 idbench=398 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  f1840a9f0b03b6ae7284b9e5be9bb3b7  /oldhome/oroussel/tmp/wulflinc31/normalized-stein27.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc31/normalized-stein27.opb
IDLAUNCH: 5162
/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:        766644 kB
Buffers:         51904 kB
Cached:         186932 kB
SwapCached:       1952 kB
Active:         202736 kB
Inactive:        44960 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        766392 kB
SwapTotal:     2097892 kB
SwapFree:      2095228 kB
Dirty:             152 kB
Writeback:           0 kB
Mapped:           5380 kB
Slab:            14612 kB
Committed_AS:    63856 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-17 00:53:43 (client local time) WITH STATUS 30 IN 18.4242 SECONDS
stats: 5162 0 18.4242 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 27 variables and 118 constraints.
c After prepocess the problem consists of 27 variables and 118 constraints.
c preprocess terminated 0.046 s
c Initial Lower Bound: 13
c Lower Bound Elapsed time: 0.01275
c Not use computed LB before first solution.
c NEW SOLUTION FOUND: 24 @ 0.098
c NEW SOLUTION FOUND: 23 @ 0.102
c NEW SOLUTION FOUND: 22 @ 0.104
c NEW SOLUTION FOUND: 21 @ 0.106
c NEW SOLUTION FOUND: 20 @ 0.108
c NEW SOLUTION FOUND: 19 @ 0.11
c NEW SOLUTION FOUND: 18 @ 0.123
s OPTIMUM FOUND
v -x0 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 
c Exit Code: 30
c Total time: 18.402 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): 0.93 0.98 0.99 2/55 19000
Raw data (stat): 19000 (runsolver) R 18999 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 765562230 1056768 100 4294967295 134512640 135381576 3221221696 3221216916 135158418 0 2147483391 1 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.001 s]
Raw data (loadavg): 0.94 0.98 0.99 2/55 19000
Raw data (stat): 19000 (bsolo_lpr) R 18999 7876 7672 0 -1 0 6031 0 0 0 957 37 0 0 25 0 1 0 765562230 7434240 1075 4294967295 134512640 134714508 3221221792 3221218684 1077386340 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 1768 1074 1111 63 0 1705 0
vsize: 7260
[startup+18.4759 s]
Raw data (loadavg): 0.94 0.98 0.99 1/54 19000
Raw data (stat): 19000 (bsolo_lpr) R 18999 7876 7672 0 -1 0 6031 0 0 0 957 37 0 0 25 0 1 0 765562230 7434240 1075 4294967295 134512640 134714508 3221221792 3221218684 1077386340 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 1768 1074 1111 63 0 1705 0
vsize: 0

Child status: 30
Real time (s): 18.4756
CPU time (s): 18.4242
CPU user time (s): 17.7833
CPU system time (s): 0.640902
CPU usage (%): 99.7218
Max. virtual memory (Kb): 7260
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	18
#### END VERIFIER DATA ####