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/MIPLIB/miplib/normalized-mps-v2-13-7-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 19310

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-04-21 19:07:41 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16740 boxname=wulflinc1 idbench=1288 idsolver=9 numberseed=0
MD5SUM SOLVER: daf345f6fbf228671abfac48013b9cac  /oldhome/oroussel/solvers/sat4jPseudo.jar
MD5SUM BENCH:  9e4c4999c6f95fcef879d3d86840d71a  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-bm23.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudo.jar /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-bm23.opb
IDLAUNCH: 16740
/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:        677904 kB
Buffers:          8736 kB
Cached:         322084 kB
SwapCached:          0 kB
Active:          66628 kB
Inactive:       267272 kB
HighTotal:      131008 kB
HighFree:          532 kB
LowTotal:       903652 kB
LowFree:        677372 kB
SwapTotal:     2097136 kB
SwapFree:      2096968 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           7224 kB
Slab:            17020 kB
Committed_AS:    92820 kB
PageTables:        344 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 19:08:22 (client local time) WITH STATUS 30 IN 34.8857 SECONDS
stats: 16740 0 34.8857 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c solving /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-bm23.opb
c reading problem 
c [nbvar=27]
c [nbconstr=47]
c time 0.481
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) : 6.148
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) : 17.292
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) : 24.216
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) : 27.119
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) : 40.017
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): 0.87 0.97 0.91 2/56 32329
Raw data (stat): 32329 (runsolver) D 32328 12452 12451 0 -1 64 4 0 0 0 0 0 0 0 20 0 1 0 432400470 1052672 99 4294967295 134512640 135381576 3221224432 3221219680 135158418 0 2147483391 7 90112 3225161850 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0011 s]
Raw data (loadavg): 1.19 1.03 0.94 4/66 32340
Raw data (stat): 32329 (java) R 32328 12452 12451 0 -1 0 13757 3 1 0 635 30 0 0 25 0 11 0 432400470 874082304 18432 4294967295 134512640 134569956 3221224400 3221214864 1130918442 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 213399 18436 13073 16 0 213383 0
vsize: 853596
[startup+20.0011 s]
Raw data (loadavg): 1.47 1.10 0.96 4/66 32341
Raw data (stat): 32329 (java) R 32328 12452 12451 0 -1 0 18177 3 1 0 1411 40 0 0 25 0 11 0 432400470 887103488 26536 4294967295 134512640 134569956 3221224400 3221214760 1131227864 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 216578 26536 13073 16 0 216562 0
vsize: 866312
[startup+30.0019 s]
Raw data (loadavg): 1.40 1.09 0.96 2/66 32343
Raw data (stat): 32329 (java) R 32328 12452 12451 0 -1 0 18177 3 1 0 2352 41 0 0 25 0 11 0 432400470 877092864 24547 4294967295 134512640 134569956 3221224400 3221214568 1131206671 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 214134 24547 13073 16 0 214118 0
vsize: 856536
[startup+40.0016 s]
Raw data (loadavg): 1.34 1.09 0.96 2/66 32343
Raw data (stat): 32329 (java) R 32328 12452 12451 0 -1 0 18177 3 1 0 3326 41 0 0 25 0 11 0 432400470 877092864 24769 4294967295 134512640 134569956 3221224400 3221214536 1085679337 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 214134 24769 13073 16 0 214118 0
vsize: 856536
[startup+40.7519 s]
Raw data (loadavg): 1.34 1.09 0.96 1/55 32344
Raw data (stat): 32329 (java) R 32328 12452 12451 0 -1 0 18177 3 1 0 3326 41 0 0 25 0 11 0 432400470 877092864 24769 4294967295 134512640 134569956 3221224400 3221214536 1085679337 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 214134 24769 13073 16 0 214118 0
vsize: 0

Child status: 30
Real time (s): 40.7515
CPU time (s): 34.8857
CPU user time (s): 34.4348
CPU system time (s): 0.450931
CPU usage (%): 85.6058
Max. virtual memory (Kb): 866312
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	34
#### END VERIFIER DATA ####