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-pipex.opb
MD5SUM	b9c1029cc1d97a8d60e984f96f5d3267
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	788263
Optimality of the best value was proved	NO
Number of terms in the objective function	48
Biggest coefficient in the objective function	107865
Number of bits for the biggest coefficient in the objective function	17
Sum of the numbers in the objective function	2514082
Number of bits of the sum of numbers in the objective function	22
Biggest number in a constraint	107865
Number of bits of the biggest number in a constraint	17
Biggest sum of numbers in a constraint	2514082
Number of bits of the biggest sum of numbers	22
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.02184
Number of variables	48
Total number of constraints	73
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	64
Number of constraints which are nor clauses,nor cardinality constraints	9
Minimum length of a constraint	1
Maximum length of a constraint	16

Trace number 29520

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-05-25 08:51:18 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=20951 boxname=wulflinc1 idbench=939 idsolver=14 numberseed=0
MD5SUM SOLVER: d29da23ec752be69e0579424c0f0767e  /oldhome/oroussel/solvers/sat4jPseudoBis.jar
MD5SUM BENCH:  b9c1029cc1d97a8d60e984f96f5d3267  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-pipex.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudoBis.jar /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-pipex.opb
IDLAUNCH: 20951
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        725448 kB
Buffers:         27476 kB
Cached:         252520 kB
SwapCached:       3972 kB
Active:          60164 kB
Inactive:       226696 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        725196 kB
SwapTotal:     2097136 kB
SwapFree:      2092844 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           6960 kB
Slab:            16672 kB
Committed_AS:    92712 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-25 08:51:51 (client local time) WITH STATUS 30 IN 35.5316 SECONDS
stats: 20951 0 35.5316 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c SAT4J: a SATisfiability library for Java (c) 2004-2005 Daniel Le Berre
c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
c version Special PB05 Second trial
c --- Begin Solver configuration ---
c org.sat4j.minisat.uip.FirstUIP@1e4cbc4
c org.sat4j.minisat.constraints.PBMinDataStructure@1fdc96c
c org.sat4j.minisat.learning.MiniSATLearning@b2fd8f
c conflictBoundIncFactor=1.5 learntBoundIncFactor=1.1 initLearntBoundConstraintFactor=0.5 initConflictBound=100 
c 
c --- End Solver configuration ---
c solving /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-pipex.opb
c reading problem ... done. Time 0.232 ms.
c #vars     48
c #constraints  41
c SATISFIABLE
c OPTIMIZING...
c CURRENT OPTIMUM=              877853 		Current CPU time: 0.71 ms
c CURRENT OPTIMUM=              841850 		Current CPU time: 1.23 ms
c CURRENT OPTIMUM=              838452 		Current CPU time: 2.80 ms
c CURRENT OPTIMUM=              822380 		Current CPU time: 3.56 ms
c CURRENT OPTIMUM=              820077 		Current CPU time: 4.94 ms
c CURRENT OPTIMUM=              819704 		Current CPU time: 5.96 ms
c CURRENT OPTIMUM=              817851 		Current CPU time: 6.19 ms
c CURRENT OPTIMUM=              805402 		Current CPU time: 6.63 ms
c CURRENT OPTIMUM=              804348 		Current CPU time: 7.90 ms
c CURRENT OPTIMUM=              802184 		Current CPU time: 8.44 ms
c CURRENT OPTIMUM=              801048 		Current CPU time: 10.35 ms
c CURRENT OPTIMUM=              788385 		Current CPU time: 18.50 ms
c CURRENT OPTIMUM=              788263 		Current CPU time: 22.61 ms
c starts	: 18
c conflicts	: 998
c decisions	: 1576
c propagations	: 10656
c inspects	: 330461
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 997
c root simplifications	: 21
s OPTIMUM_FOUND
v QUAN0101_bit0 QUAN0102_bit0 -QUAN0103_bit0 -QUAN0104_bit0 -QUAN0105_bit0 -QUAN0106_bit0 -QUAN0107_bit0 -QUAN0108_bit0 -QUAN0109_bit0 -QUAN0110_bit0 QUAN0111_bit0 -QUAN0112_bit0 QUAN0113_bit0 -QUAN0114_bit0 -QUAN0115_bit0 -QUAN0116_bit0 -QUAN0201_bit0 -QUAN0202_bit0 -QUAN0203_bit0 -QUAN0204_bit0 -QUAN0205_bit0 -QUAN0206_bit0 QUAN0207_bit0 QUAN0208_bit0 -QUAN0209_bit0 -QUAN0210_bit0 -QUAN0211_bit0 QUAN0212_bit0 -QUAN0213_bit0 QUAN0214_bit0 QUAN0215_bit0 QUAN0216_bit0 -QUAN0301_bit0 -QUAN0302_bit0 QUAN0303_bit0 QUAN0304_bit0 QUAN0305_bit0 QUAN0306_bit0 -QUAN0307_bit0 -QUAN0308_bit0 QUAN0309_bit0 QUAN0310_bit0 -QUAN0311_bit0 -QUAN0312_bit0 -QUAN0313_bit0 -QUAN0314_bit0 -QUAN0315_bit0 -QUAN0316_bit0 
c objectif function=788263
c Total CPU time (ms) : 31.912
#### 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 0.99 2/55 19981
Raw data (stat): 19981 (runsolver) R 19980 8378 8377 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 722499675 1052672 99 4294967295 134512640 135381576 3221224400 3221219620 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+9.99973 s]
Raw data (loadavg): 1.16 1.03 1.01 4/65 20001
Raw data (stat): 19981 (java) R 19980 8378 8377 0 -1 0 18120 7 1 0 649 38 0 0 25 0 11 0 722499675 861667328 20438 4294967295 134512640 134569956 3221224368 3221213812 1073952732 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 210368 20438 13086 16 0 210352 0
vsize: 841472
[startup+20.0005 s]
Raw data (loadavg): 1.14 1.03 1.01 2/65 20003
Raw data (stat): 19981 (java) R 19980 8378 8377 0 -1 0 18120 7 1 0 1601 39 0 0 20 0 11 0 722499675 860319744 20772 4294967295 134512640 134569956 3221224368 3221214608 1130917550 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 210039 20772 13086 16 0 210023 0
vsize: 840156
[startup+30.0013 s]
Raw data (loadavg): 1.12 1.03 1.01 2/65 20004
Raw data (stat): 19981 (java) R 19980 8378 8377 0 -1 0 18120 7 1 0 2565 39 0 0 25 0 11 0 722499675 860319744 21078 4294967295 134512640 134569956 3221224368 3221214576 1131153815 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 210039 21078 13086 16 0 210023 0
vsize: 840156
[startup+32.9287 s]
Raw data (loadavg): 1.12 1.03 1.01 1/54 20005
Raw data (stat): 19981 (java) R 19980 8378 8377 0 -1 0 18120 7 1 0 2565 39 0 0 25 0 11 0 722499675 860319744 21078 4294967295 134512640 134569956 3221224368 3221214576 1131153815 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 210039 21078 13086 16 0 210023 0
vsize: 0

Child status: 30
Real time (s): 32.9284
CPU time (s): 35.5316
CPU user time (s): 35.0267
CPU system time (s): 0.504923
CPU usage (%): 107.906
Max. virtual memory (Kb): 841472
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	788263
#### END VERIFIER DATA ####