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 40262

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-08 05:27:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=28332 boxname=wulflinc4 idbench=1288 idsolver=20 numberseed=0
MD5SUM SOLVER: f6aa7fb267fa9710116626be7e6d3048  /oldhome/oroussel/solvers/bsolo_lpr-v2
MD5SUM BENCH:  9e4c4999c6f95fcef879d3d86840d71a  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-bm23.opb
REAL COMMAND:  bsolo_lpr-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-bm23.opb
IDLAUNCH: 28332
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        824892 kB
Buffers:         14692 kB
Cached:         173748 kB
SwapCached:        872 kB
Active:          22728 kB
Inactive:       167736 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        824640 kB
SwapTotal:     2097136 kB
SwapFree:      2095212 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4916 kB
Slab:            13648 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-08 05:28:35 (client local time) WITH STATUS 30 IN 60.1809 SECONDS
stats: 28332 0 60.1809 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 27 variables and 20 constraints.
c After prepocess the problem consists of 27 variables and 20 constraints.
c preprocess terminated 0.052 s
c Initial Lower Bound: 19
c Lower Bound Elapsed time: 0.005
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 57 @ 6.722
c NEW SOLUTION FOUND: 53 @ 10.157
c NEW SOLUTION FOUND: 45 @ 13.78
c NEW SOLUTION FOUND: 41 @ 15.331
c NEW SOLUTION FOUND: 38 @ 43.872
c NEW SOLUTION FOUND: 35 @ 59.094
c NEW SOLUTION FOUND: 34 @ 60.104
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 Exit Code: 30
c Total time: 60.167 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.70 0.90 0.89 2/54 28071
Raw data (stat): 28071 (runsolver) R 28070 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 899100361 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0017 s]
Raw data (loadavg): 0.74 0.91 0.90 2/54 28071
Raw data (stat): 28071 (bsolo_lpr-v2) R 28070 21152 21151 0 -1 0 5638 0 0 0 967 30 0 0 25 0 1 0 899100361 8462336 1365 4294967295 134512640 134716908 3221224576 3221223208 134543665 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 2066 1365 1111 63 0 2003 0
vsize: 8264
[startup+20.0025 s]
Raw data (loadavg): 0.78 0.91 0.90 2/54 28071
Raw data (stat): 28071 (bsolo_lpr-v2) R 28070 21152 21151 0 -1 0 10528 0 0 0 1936 60 0 0 25 0 1 0 899100361 11304960 2020 4294967295 134512640 134716908 3221224576 3221220824 1075561313 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 2760 2020 1111 63 0 2697 0
vsize: 11040
[startup+30.0029 s]
Raw data (loadavg): 0.81 0.91 0.90 2/54 28071
Raw data (stat): 28071 (bsolo_lpr-v2) R 28070 21152 21151 0 -1 0 15225 0 0 0 2904 92 0 0 25 0 1 0 899100361 13594624 2602 4294967295 134512640 134716908 3221224576 3221222756 1077782939 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3298 2601 1111 63 0 3235 0
vsize: 13276
[startup+40.0033 s]
Raw data (loadavg): 0.84 0.91 0.90 2/54 28071
Raw data (stat): 28071 (bsolo_lpr-v2) R 28070 21152 21151 0 -1 0 19535 0 0 0 3881 115 0 0 25 0 1 0 899100361 15527936 3092 4294967295 134512640 134716908 3221224576 3221223004 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3791 3092 1111 63 0 3728 0
vsize: 15164
[startup+50.0039 s]
Raw data (loadavg): 0.87 0.92 0.90 2/54 28071
Raw data (stat): 28071 (bsolo_lpr-v2) R 28070 21152 21151 0 -1 0 24446 0 0 0 4855 140 0 0 25 0 1 0 899100361 17285120 3526 4294967295 134512640 134716908 3221224576 3221222832 1074153786 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4220 3526 1111 63 0 4157 0
vsize: 16880
[startup+60.0044 s]
Raw data (loadavg): 0.89 0.92 0.90 2/54 28071
Raw data (stat): 28071 (bsolo_lpr-v2) R 28070 21152 21151 0 -1 0 29871 0 0 0 5829 167 0 0 25 0 1 0 899100361 19234816 4002 4294967295 134512640 134716908 3221224576 3221223004 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4696 4002 1111 63 0 4633 0
vsize: 18784
[startup+60.2207 s]
Raw data (loadavg): 0.89 0.92 0.90 1/53 28071
Raw data (stat): 28071 (bsolo_lpr-v2) R 28070 21152 21151 0 -1 0 29871 0 0 0 5829 167 0 0 25 0 1 0 899100361 19234816 4002 4294967295 134512640 134716908 3221224576 3221223004 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4696 4002 1111 63 0 4633 0
vsize: 0

Child status: 30
Real time (s): 60.2205
CPU time (s): 60.1809
CPU user time (s): 58.4911
CPU system time (s): 1.68974
CPU usage (%): 99.9342
Max. virtual memory (Kb): 18784
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	34
#### END VERIFIER DATA ####