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/mps-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-scfxm3.opb
MD5SUM	4a3de02f6262a734aceb5f1aba22728b
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
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	1380
Biggest coefficient in the objective function	5242880
Number of bits for the biggest coefficient in the objective function	23
Sum of the numbers in the objective function	412089975
Number of bits of the sum of numbers in the objective function	29
Biggest number in a constraint	52428800000
Number of bits of the biggest number in a constraint	36
Biggest sum of numbers in a constraint	319170501375
Number of bits of the biggest sum of numbers	39
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.897863
Number of variables	27420
Total number of constraints	990
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	990
Minimum length of a constraint	20
Maximum length of a constraint	1140

Trace number 31002

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc20 THE 2005-05-25 21:37:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=22433 boxname=wulflinc20 idbench=1249 idsolver=15 numberseed=0
MD5SUM SOLVER: 34d34154b8ad81f02ee98439942e0814  /oldhome/oroussel/solvers/minisat+_script
MD5SUM BENCH:  4a3de02f6262a734aceb5f1aba22728b  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-scfxm3.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-scfxm3.opb
IDLAUNCH: 22433
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.215
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		: 451.215
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:        869656 kB
Buffers:         34128 kB
Cached:         103984 kB
SwapCached:        608 kB
Active:          20288 kB
Inactive:       124532 kB
HighTotal:      131008 kB
HighFree:        74340 kB
LowTotal:       903652 kB
LowFree:        795316 kB
SwapTotal:     2097892 kB
SwapFree:      2096304 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5064 kB
Slab:            14392 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 21:37:45 (client local time) WITH STATUS 20 IN 2.10568 SECONDS
stats: 22433 7 2.10568 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 1521 PB-constraints to clauses...
c   -- Unit propagations: ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp  -- Detecting intervals from adjacent constraints: ####################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################
c   -- Clauses(.)/Splits(s): s
s UNSATISFIABLE
c _______________________________________________________________________________
c 
c restarts              : 0
c conflicts             : 0              (0 /sec)
c decisions             : 0              (0 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 1.9727 s
c _______________________________________________________________________________
#### 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): 0.72 0.89 0.89 2/54 9951
Raw data (stat): 9951 (runsolver) R 9950 25399 25398 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 842176298 1052672 99 4294967295 134512640 135381576 3221224480 3221219688 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+2.11737 s]
Raw data (loadavg): 0.74 0.89 0.89 1/53 9955
Raw data (stat): 9951 (runsolver) R 9950 25399 25398 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 842176298 1052672 99 4294967295 134512640 135381576 3221224480 3221219688 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 20
Real time (s): 2.11679
CPU time (s): 2.10568
CPU user time (s): 1.9797
CPU system time (s): 0.12598
CPU usage (%): 99.4749
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####