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/MIPLIB/miplib/normalized-mps-v2-20-10-bm23.opb
MD5SUM	9e4c4999c6f95fcef879d3d86840d71a
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	34
Optimality of the best value was proved	NO
Number of terms in the objective function	27
Biggest coefficient in the objective function	9
Number of bits for the biggest coefficient in the objective function	4
Sum of the numbers in the objective function	124
Number of bits of the sum of numbers in the objective function	7
Biggest number in a constraint	65
Number of bits of the biggest number in a constraint	7
Biggest sum of numbers in a constraint	182
Number of bits of the biggest sum of numbers	8
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.25796
Number of variables	27
Total number of constraints	47
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	27
Number of constraints which are nor clauses,nor cardinality constraints	20
Minimum length of a constraint	1
Maximum length of a constraint	26

Trace number 22453

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc7 THE 2005-04-22 03:24:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11748 boxname=wulflinc7 idbench=904 idsolver=9 numberseed=0
MD5SUM SOLVER: daf345f6fbf228671abfac48013b9cac  /oldhome/oroussel/solvers/sat4jPseudo.jar
MD5SUM BENCH:  9e4c4999c6f95fcef879d3d86840d71a  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-bm23.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudo.jar /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-bm23.opb
IDLAUNCH: 11748
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.050
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	: 2
cpu MHz		: 451.050
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:        194576 kB
Buffers:         26284 kB
Cached:         791292 kB
SwapCached:        328 kB
Active:         121688 kB
Inactive:       698448 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        194324 kB
SwapTotal:     2097136 kB
SwapFree:      2096520 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6460 kB
Slab:            14344 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-22 03:25:29 (client local time) WITH STATUS 30 IN 42.5485 SECONDS
stats: 11748 0 42.5485 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c solving /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-bm23.opb
c reading problem 
c [nbvar=27]
c [nbconstr=47]
c time 0.49
c #vars     27
c #clauses  20
c starts	: 0
c conflicts	: 0
c decisions	: 0
c propagations	: 0
c inspects	: 0
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 0
c root simplifications	: 0
c SATISFIABLE
c OPTIMIZING...
c 
c CURRENT OPTIMUM=53
c Current CPU time (ms) : 6.682
c starts	: 1
c conflicts	: 68
c decisions	: 124
c propagations	: 400
c inspects	: 3246
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 68
c root simplifications	: 1
c 
c CURRENT OPTIMUM=51
c Current CPU time (ms) : 15.861
c starts	: 4
c conflicts	: 323
c decisions	: 499
c propagations	: 1670
c inspects	: 34671
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 323
c root simplifications	: 4
c 
c CURRENT OPTIMUM=42
c Current CPU time (ms) : 20.49
c starts	: 6
c conflicts	: 561
c decisions	: 820
c propagations	: 2874
c inspects	: 78368
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 561
c root simplifications	: 6
c 
c CURRENT OPTIMUM=34
c Current CPU time (ms) : 23.334
c starts	: 8
c conflicts	: 677
c decisions	: 1004
c propagations	: 3586
c inspects	: 110866
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 677
c root simplifications	: 8
c Total CPU time (ms) : 35.926
c 
s OPTIMUM FOUND
v -C101_bit0 -C102_bit0 C103_bit0 -C104_bit0 C105_bit0 -C106_bit0 -C107_bit0 -C108_bit0 C109_bit0 -C110_bit0 -C111_bit0 -C112_bit0 -C113_bit0 -C114_bit0 C115_bit0 -C116_bit0 C117_bit0 -C118_bit0 -C119_bit0 C120_bit0 -C121_bit0 C122_bit0 -C123_bit0 -C124_bit0 -C125_bit0 -C126_bit0 C127_bit0 
c objectif function=34
#### 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): 0.58 0.77 0.84 2/54 26967
Raw data (stat): 26967 (runsolver) R 26966 22932 22931 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 492244064 1052672 99 4294967295 134512640 135381576 3221224432 3221219680 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+9.99982 s]
Raw data (loadavg): 0.80 0.81 0.85 4/64 26978
Raw data (stat): 26967 (java) R 26966 22932 22931 0 -1 0 16076 3 1 0 628 35 0 0 25 0 11 0 492244064 869093376 19886 4294967295 134512640 134569956 3221224400 3221214772 1130907713 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 212181 19886 13073 16 0 212165 0
vsize: 848724
[startup+20.0009 s]
Raw data (loadavg): 1.06 0.87 0.87 2/64 26979
Raw data (stat): 26967 (java) R 26966 22932 22931 0 -1 0 18106 3 1 0 1362 40 0 0 25 0 11 0 492244064 868888576 22502 4294967295 134512640 134569956 3221224400 3221214436 1085632272 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 212131 22502 13073 16 0 212115 0
vsize: 848524
[startup+30.0011 s]
Raw data (loadavg): 1.05 0.87 0.87 2/64 26981
Raw data (stat): 26967 (java) R 26966 22932 22931 0 -1 0 18106 3 1 0 2336 40 0 0 25 0 11 0 492244064 868474880 22869 4294967295 134512640 134569956 3221224400 3221214368 1131371069 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212030 22869 13073 16 0 212014 0
vsize: 848120
[startup+36.6896 s]
Raw data (loadavg): 1.04 0.88 0.87 1/53 26982
Raw data (stat): 26967 (java) R 26966 22932 22931 0 -1 0 18106 3 1 0 2336 40 0 0 25 0 11 0 492244064 868474880 22869 4294967295 134512640 134569956 3221224400 3221214368 1131371069 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212030 22869 13073 16 0 212014 0
vsize: 0

Child status: 30
Real time (s): 36.6892
CPU time (s): 42.5485
CPU user time (s): 41.9046
CPU system time (s): 0.643902
CPU usage (%): 115.97
Max. virtual memory (Kb): 848724
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	34
#### END VERIFIER DATA ####