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-ship08l.opb
MD5SUM	0a05016ca1456223450d9ec498a510c4
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	85660
Biggest coefficient in the objective function	425249996800
Number of bits for the biggest coefficient in the objective function	39
Sum of the numbers in the objective function	200022778005600
Number of bits of the sum of numbers in the objective function	48
Biggest number in a constraint	425249996800
Number of bits of the biggest number in a constraint	39
Biggest sum of numbers in a constraint	200022778005600
Number of bits of the biggest sum of numbers	48
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.776881
Number of variables	85660
Total number of constraints	712
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	712
Minimum length of a constraint	20
Maximum length of a constraint	1700

Trace number 32191

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc21 THE 2005-05-27 08:42:24 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=23620 boxname=wulflinc21 idbench=1264 idsolver=16 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0a05016ca1456223450d9ec498a510c4  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-ship08l.opb
REAL COMMAND:  minisat+_script -cb -gs /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-ship08l.opb
IDLAUNCH: 23620
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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	: 3
cpu MHz		: 451.161
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:        736588 kB
Buffers:          7584 kB
Cached:         268952 kB
SwapCached:        972 kB
Active:          24656 kB
Inactive:       254000 kB
HighTotal:      131008 kB
HighFree:        15036 kB
LowTotal:       903652 kB
LowFree:        721552 kB
SwapTotal:     2097892 kB
SwapFree:      2096008 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           5128 kB
Slab:            13688 kB
Committed_AS:    63912 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-27 08:42:31 (client local time) WITH STATUS 20 IN 6.588 SECONDS
stats: 23620 7 6.588 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 909 PB-constraints to clauses...
c   -- Unit propagations: pppppppp  -- 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              : 6.31804 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): 0.74 0.91 0.89 2/55 27819
Raw data (stat): 27819 (runsolver) R 27818 32363 32362 0 -1 64 4 0 0 0 0 0 0 0 20 0 1 0 732071806 1052672 99 4294967295 134512640 135381576 3221224464 3221219672 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+6.60124 s]
Raw data (loadavg): 0.76 0.91 0.90 1/54 27823
Raw data (stat): 27819 (runsolver) R 27818 32363 32362 0 -1 64 4 0 0 0 0 0 0 0 20 0 1 0 732071806 1052672 99 4294967295 134512640 135381576 3221224464 3221219672 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 20
Real time (s): 6.60095
CPU time (s): 6.588
CPU user time (s): 6.32604
CPU system time (s): 0.26196
CPU usage (%): 99.8038
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####