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-g9x9.opb
MD5SUM3682f861aa46be9df7d6903cb35a0651
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 20
Optimality of the best value was proved NO
Number of terms in the objective function 81
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 81
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 81
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 benchmark0.676896
Number of variables81
Total number of constraints81
Number of constraints which are clauses81
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 40926 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-09 02:53:39 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=28997 boxname=wulflinc4 idbench=383 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  3682f861aa46be9df7d6903cb35a0651  /oldhome/oroussel/tmp/wulflinc4/normalized-g9x9.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-g9x9.opb
IDLAUNCH: 28997
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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	: 2
cpu MHz		: 451.169
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:        908764 kB
Buffers:         30256 kB
Cached:          74500 kB
SwapCached:       1188 kB
Active:          26964 kB
Inactive:        80076 kB
HighTotal:      131008 kB
HighFree:        55552 kB
LowTotal:       903652 kB
LowFree:        853212 kB
SwapTotal:     2097136 kB
SwapFree:      2094880 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4908 kB
Slab:            13176 kB
Committed_AS:    71784 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 02:53:40 (client local time) WITH STATUS 30 IN 0.941856 SECONDS
stats: 28997 0 0.941856 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 81 variables and 81 constraints.
c After prepocess the problem consists of 81 variables and 81 constraints.
c preprocess terminated 0.044 s
c Initial Lower Bound: 19
c Lower Bound Elapsed time: 0.057
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 20 @ 0.181
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 
c Exit Code: 30
c Total time: 0.932 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.92 0.95 0.90 2/54 7593
Raw data (stat): 7593 (runsolver) R 7592 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 906817765 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+0.962743 s]
Raw data (loadavg): 0.92 0.95 0.90 1/53 7593
Raw data (stat): 7593 (runsolver) R 7592 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 906817765 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 30
Real time (s): 0.962463
CPU time (s): 0.941856
CPU user time (s): 0.905862
CPU system time (s): 0.035994
CPU usage (%): 97.8589
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	20
#### END VERIFIER DATA ####