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-ship04l.opb
MD5SUM	96cffa4027013d4e1e663a2c8e2c78bc
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	42360
Biggest coefficient in the objective function	1930952704000
Number of bits for the biggest coefficient in the objective function	41
Sum of the numbers in the objective function	425698145420625
Number of bits of the sum of numbers in the objective function	49
Biggest number in a constraint	1930952704000
Number of bits of the biggest number in a constraint	41
Biggest sum of numbers in a constraint	425698145420625
Number of bits of the biggest sum of numbers	49
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.365943
Number of variables	42360
Total number of constraints	352
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	352
Minimum length of a constraint	20
Maximum length of a constraint	1680

Trace number 15794

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc30 THE 2005-04-21 06:07:57 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16406 boxname=wulflinc30 idbench=1262 idsolver=13 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  96cffa4027013d4e1e663a2c8e2c78bc  /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-ship04l.opb
REAL COMMAND:  minisat+ -w /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-ship04l.opb /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-ship04l.opb
IDLAUNCH: 16406
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.072
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		: 451.072
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:        657336 kB
Buffers:         23960 kB
Cached:         321072 kB
SwapCached:          0 kB
Active:         153484 kB
Inactive:       194364 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        657084 kB
SwapTotal:     2097892 kB
SwapFree:      2097824 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6800 kB
Slab:            23836 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-21 06:07:57 (client local time) WITH STATUS 1 IN 0.017997 SECONDS
stats: 16406 7 0.017997 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
PARSE ERROR! [line 2122] Integer overflow. Big numbers not supported yet.
#### 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): 0.79 0.95 0.90 2/54 13240
Raw data (stat): 13240 (runsolver) R 13239 11931 11930 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 542794913 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 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+0.064755 s]
Raw data (loadavg): 0.79 0.95 0.90 1/53 13240
Raw data (stat): 13240 (runsolver) R 13239 11931 11930 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 542794913 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 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: 1
Real time (s): 0.0645
CPU time (s): 0.017997
CPU user time (s): 0.005999
CPU system time (s): 0.011998
CPU usage (%): 27.9023
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####