PB'05 competition: run trace

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:

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.
SOLVER DATA
This is the output of the solver (stdout and stderr).
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.
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

Name	normalized-opb/web/uclid_pb_benchmarks/normalized-ooo.rf6.ucl.opb
MD5SUM	af9c4b2b5dd24e256cb9a4c5ef05ed38
Bench Category	no optimization function (SAT)
Has Objective Function	NO
Satisfiable	NO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function	0
Biggest coefficient in the objective function	0
Number of bits for the biggest coefficient in the objective function	0
Sum of the numbers in the objective function	0
Number of bits of the sum of numbers in the objective function	0
Biggest number in a constraint	19
Number of bits of the biggest number in a constraint	5
Biggest sum of numbers in a constraint	64
Number of bits of the biggest sum of numbers	7
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.230964
Number of variables	1804
Total number of constraints	4931
Number of constraints which are clauses	4707
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	224
Minimum length of a constraint	1
Maximum length of a constraint	9

Trace number 24667

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-11 18:10:41 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2746 boxname=wulflinc31 idbench=306 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  af9c4b2b5dd24e256cb9a4c5ef05ed38  /oldhome/oroussel/tmp/wulflinc31/normalized-ooo.rf6.ucl.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc31/normalized-ooo.rf6.ucl.opb
IDLAUNCH: 2746
/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:        922280 kB
Buffers:          9132 kB
Cached:          82844 kB
SwapCached:       1116 kB
Active:          63512 kB
Inactive:        30844 kB
HighTotal:      131008 kB
HighFree:        47264 kB
LowTotal:       903652 kB
LowFree:        875016 kB
SwapTotal:     2097892 kB
SwapFree:      2096056 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5368 kB
Slab:            12216 kB
Committed_AS:    63860 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-11 18:11:10 (client local time) WITH STATUS 20 IN 28.4017 SECONDS
stats: 2746 7 28.4017 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c INFO: No cost function. Find solution and finish.
c Initial problem consists of 1804 variables and 4931 constraints.
c After prepocess the problem consists of 917 variables and 2898 constraints.
c preprocess terminated 27.48 s
c Not use computed LB before first solution.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 28.368 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): 0.68 0.92 0.97 2/55 32620
Raw data (stat): 32620 (runsolver) R 32619 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 719940676 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 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+10.001 s]
Raw data (loadavg): 0.73 0.92 0.97 2/55 32620
Raw data (stat): 32620 (bsolo_lpr) R 32619 7876 7672 0 -1 0 4031 0 0 0 985 10 0 0 25 0 1 0 719940676 19640320 3952 4294967295 134512640 134714508 3221221792 3221220176 134542347 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 4795 3952 1111 63 0 4732 0
vsize: 19180
[startup+20.0019 s]
Raw data (loadavg): 0.77 0.92 0.97 2/55 32620
Raw data (stat): 32620 (bsolo_lpr) R 32619 7876 7672 0 -1 0 4367 0 0 0 1984 12 0 0 25 0 1 0 719940676 21020672 4288 4294967295 134512640 134714508 3221221792 3221220308 134542962 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 5132 4288 1111 63 0 5069 0
vsize: 20528
[startup+28.4372 s]
Raw data (loadavg): 0.79 0.92 0.97 1/54 32620
Raw data (stat): 32620 (bsolo_lpr) R 32619 7876 7672 0 -1 0 4367 0 0 0 1984 12 0 0 25 0 1 0 719940676 21020672 4288 4294967295 134512640 134714508 3221221792 3221220308 134542962 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 5132 4288 1111 63 0 5069 0
vsize: 0

Child status: 20
Real time (s): 28.4369
CPU time (s): 28.4017
CPU user time (s): 28.2637
CPU system time (s): 0.137979
CPU usage (%): 99.8763
Max. virtual memory (Kb): 20528
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####