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 35005 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc30 THE 2005-05-28 11:58:28 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24324 boxname=wulflinc30 idbench=398 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f1840a9f0b03b6ae7284b9e5be9bb3b7  /oldhome/oroussel/tmp/wulflinc30/normalized-stein27.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc30/normalized-stein27.opb
IDLAUNCH: 24324
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.072
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		: 451.072
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:        861320 kB
Buffers:         34268 kB
Cached:         115940 kB
SwapCached:        752 kB
Active:          43248 kB
Inactive:       109060 kB
HighTotal:      131008 kB
HighFree:        77756 kB
LowTotal:       903652 kB
LowFree:        783564 kB
SwapTotal:     2097892 kB
SwapFree:      2096312 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            15352 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 11:58:34 (client local time) WITH STATUS 30 IN 5.66014 SECONDS
stats: 24324 0 5.66014 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c [startup+0.111288 s]  setting bit 4 to 0
c got solution with objective value: 19
c [startup+0.114287 s]  setting bit 3 to 1
c [startup+0.67116 s]  setting bit 2 to 0

Decision: 215/633	Time: 0.904863/86400
Decision: 215/633	Time: 1.17982/86400
Decision: 215/633	Time: 1.50377/86400
Decision: 215/633	Time: 1.85572/86400
Decision: 215/633	Time: 2.22466/86400
Decision: 215/633	Time: 2.6476/86400
Decision: 230/633	Time: 3.50547/86400
Decision: 264/633	Time: 4.6113/86400c [startup+5.64588 s]  setting bit 1 to 0
c got solution with objective value: 18
c [startup+5.6527 s]  setting bit 0 to 1
s OPTIMUM FOUND
v x0 -x1 x10 x11 x12 x13 x14 -x15 x16 x17 -x18 x19 -x2 -x20 -x21 x22 -x23 x24 x25 x26 x3 x4 -x5 -x6 x7 x8 x9 
#### 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): 0.86 0.91 0.89 2/54 32754
Raw data (stat): 32754 (runsolver) R 32753 22056 22055 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864619086 884736 94 4294967295 134512640 135332820 3221224480 3221219660 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+5.66629 s]
Raw data (loadavg): 0.87 0.91 0.89 1/53 32754
Raw data (stat): 32754 (runsolver) R 32753 22056 22055 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864619086 884736 94 4294967295 134512640 135332820 3221224480 3221219660 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): 5.66573
CPU time (s): 5.66014
CPU user time (s): 5.62614
CPU system time (s): 0.033994
CPU usage (%): 99.9014
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	18
#### END VERIFIER DATA ####