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-v2-20-10/plato.asu.edu/pub/fctp/normalized-mps-v2-20-10-n3705.opb
MD5SUM	8eea845826d64e6d5753fad916c185c9
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	155000
Biggest coefficient in the objective function	4294967296
Number of bits for the biggest coefficient in the objective function	33
Sum of the numbers in the objective function	29593306649763
Number of bits of the sum of numbers in the objective function	45
Biggest number in a constraint	4294967296
Number of bits of the biggest number in a constraint	33
Biggest sum of numbers in a constraint	29593306649763
Number of bits of the biggest sum of numbers	45
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	1.43278
Number of variables	155000
Total number of constraints	5150
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	5150
Minimum length of a constraint	31
Maximum length of a constraint	3000

Trace number 20838

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc23 THE 2005-04-21 22:19:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=14071 boxname=wulflinc23 idbench=1083 idsolver=5 numberseed=0
MD5SUM SOLVER: 1d62365061f6d70b1a242542b016b2e4  /oldhome/oroussel/solvers/minisat+
MD5SUM BENCH:  8eea845826d64e6d5753fad916c185c9  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-n3705.opb
REAL COMMAND:  minisat+ /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-n3705.opb
IDLAUNCH: 14071
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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		: 451.037
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:        724424 kB
Buffers:         15772 kB
Cached:         270232 kB
SwapCached:        548 kB
Active:          47888 kB
Inactive:       240164 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        724172 kB
SwapTotal:     2097136 kB
SwapFree:      2095732 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            16560 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 22:19:39 (client local time) WITH STATUS 1 IN 0.900862 SECONDS
stats: 14071 7 0.900862 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
ERROR! Too large constants encountered in constraint.
c Parsing PB file...
#### 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): 0.93 0.98 0.92 2/54 13963
Raw data (stat): 13963 (runsolver) R 13962 3260 3259 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 548628214 1052672 99 4294967295 134512640 135381576 3221224512 3221219756 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+0.908914 s]
Raw data (loadavg): 0.93 0.98 0.92 1/53 13963
Raw data (stat): 13963 (runsolver) R 13962 3260 3259 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 548628214 1052672 99 4294967295 134512640 135381576 3221224512 3221219756 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: 1
Real time (s): 0.908603
CPU time (s): 0.900862
CPU user time (s): 0.727889
CPU system time (s): 0.172973
CPU usage (%): 99.148
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####