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-blast-floppy1-2.ucl.opb
MD5SUM	b3c155c565dab5bdc0d92a5205f984ea
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	772
Number of bits of the biggest number in a constraint	10
Biggest sum of numbers in a constraint	2305
Number of bits of the biggest sum of numbers	12
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.025995
Number of variables	152
Total number of constraints	127
Number of constraints which are clauses	77
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	50
Minimum length of a constraint	1
Maximum length of a constraint	19

Trace number 40816

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-08 22:47:17 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=28886 boxname=wulflinc2 idbench=272 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  b3c155c565dab5bdc0d92a5205f984ea  /oldhome/oroussel/tmp/wulflinc2/normalized-blast-floppy1-2.ucl.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-blast-floppy1-2.ucl.opb
IDLAUNCH: 28886
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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	: 2
cpu MHz		: 451.191
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:        865820 kB
Buffers:         29012 kB
Cached:         118056 kB
SwapCached:       1376 kB
Active:          31708 kB
Inactive:       117360 kB
HighTotal:      131008 kB
HighFree:        27328 kB
LowTotal:       903652 kB
LowFree:        838492 kB
SwapTotal:     2097136 kB
SwapFree:      2094724 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            13976 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-08 22:47:19 (client local time) WITH STATUS 20 IN 1.25281 SECONDS
stats: 28886 7 1.25281 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 152 variables and 127 constraints.
c After prepocess the problem consists of 83 variables and 26 constraints.
c preprocess terminated 0.196 s
c Not use computed LB before first solution.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 1.24 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 0.91 2/54 16554
Raw data (stat): 16554 (runsolver) R 16553 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 905352661 884736 94 4294967295 134512640 135332820 3221224448 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+1.27194 s]
Raw data (loadavg): 0.92 0.95 0.91 1/53 16554
Raw data (stat): 16554 (runsolver) R 16553 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 905352661 884736 94 4294967295 134512640 135332820 3221224448 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 20
Real time (s): 1.27165
CPU time (s): 1.25281
CPU user time (s): 1.22081
CPU system time (s): 0.031995
CPU usage (%): 98.5182
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####