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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-afiro.opb
MD5SUM	6cb229ab1cf181ca11759652604cb193
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	-15
Optimality of the best value was proved	NO
Number of terms in the objective function	150
Biggest coefficient in the objective function	134217728000
Number of bits for the biggest coefficient in the objective function	37
Sum of the numbers in the objective function	316753837785
Number of bits of the sum of numbers in the objective function	39
Biggest number in a constraint	1304059445248
Number of bits of the biggest number in a constraint	41
Biggest sum of numbers in a constraint	20964809094075
Number of bits of the biggest sum of numbers	45
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1238.93
Number of variables	960
Total number of constraints	27
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	27
Minimum length of a constraint	30
Maximum length of a constraint	270

Trace number 26816

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-05-24 17:15:05 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=10455 boxname=wulflinc6 idbench=805 idsolver=3 numberseed=0
MD5SUM SOLVER: 03a6a792daea978e4202f78851741568  /oldhome/oroussel/solvers/bsolo_mis
MD5SUM BENCH:  6cb229ab1cf181ca11759652604cb193  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-afiro.opb
REAL COMMAND:  bsolo_mis /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-afiro.opb
IDLAUNCH: 10455
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        468916 kB
Buffers:          2496 kB
Cached:         530444 kB
SwapCached:        384 kB
Active:          16496 kB
Inactive:       518688 kB
HighTotal:      131008 kB
HighFree:        27664 kB
LowTotal:       903652 kB
LowFree:        441252 kB
SwapTotal:     2097136 kB
SwapFree:      2096040 kB
Dirty:          303796 kB
Writeback:           0 kB
Mapped:           5688 kB
Slab:            24940 kB
Committed_AS:    63732 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 17:15:06 (client local time) WITH STATUS 0 IN 0.038993 SECONDS
stats: 10455 7 0.038993 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c ERROR Parsing file!!!
c ERROR parsing line: -53*X01_bit_10 -106*X01_bit_9 -212*X01_bit_8 -424*X01_bit_7 -848*X01_bit_6 -1696*X01_bit_5 -3392*X01_bit_4 -6784*X01_bit_3 -13568*X01_bit_2 -27136*X01_bit_1 -54272*X01_bit0 -108544*X01_bit1 -217088*X01_bit2 -434176*X01_bit3 -868352*X01_bit4 -1736704*X01_bit5 -3473408*X01_bit6 -6946816*X01_bit7 -13893632*X01_bit8 -27787264*X01_bit9 -55574528*X01_bit10 -111149056*X01_bit11 -222298112*X01_bit12 -444596224*X01_bit13 -889192448*X01_bit14 -1778384896*X01_bit15 -3556769792*X01_bit16 -7113539584*X01_bit17 -14227079168*X01_bit18 -28454158336*X01_bit19 +50*X04_bit_10 +100*X04_bit_9 +200*X04_bit_8 +400*X04_bit_7 +800*X04_bit_6 +1600*X04_bit_5 +3200*X04_bit_4 +6400*X04_bit_3 +12800*X04_bit_2 +25600*X04_bit_1 +51200*X04_bit0 +102400*X04_bit1 +204800*X04_bit2 +409600*X04_bit3 +819200*X04_bit4 +1638400*X04_bit5 +3276800*X04_bit6 +6553600*X04_bit7 +13107200*X04_bit8 +26214400*X04_bit9 +52428800*X04_bit10 +104857600*X04_bit11 +209715200*X04_bit12 +419430400*X04_bit13 +838860800*X04_bit14 +1677721600*X04_bit15 +3355443200*X04_bit16 +6710886400*X04_bit17 +13421772800*X04_bit18 +26843545600*X04_bit19 = +0;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-afiro.opb
s UNKNOWN
c Exit Code: 0
c Total time: 0.025 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
Raw data (loadavg): 2.18 2.54 1.76 1/54 27236
Raw data (stat): 27236 (runsolver) R 27235 25568 25567 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 773737360 1052672 99 4294967295 134512640 135381576 3221224496 3221219712 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+0.324058 s]
Raw data (loadavg): 2.09 2.51 1.76 1/53 27236
Raw data (stat): 27236 (runsolver) R 27235 25568 25567 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 773737360 1052672 99 4294967295 134512640 135381576 3221224496 3221219712 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: 0
Real time (s): 0.323755
CPU time (s): 0.038993
CPU user time (s): 0.021996
CPU system time (s): 0.016997
CPU usage (%): 12.044
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####