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 25909

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-23 09:36:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16733 boxname=wulflinc31 idbench=1288 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  9e4c4999c6f95fcef879d3d86840d71a  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-bm23.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-bm23.opb
IDLAUNCH: 16733
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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	: 3
cpu MHz		: 451.153
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        911384 kB
Buffers:         28484 kB
Cached:          72204 kB
SwapCached:        972 kB
Active:          71976 kB
Inactive:        30820 kB
HighTotal:      131008 kB
HighFree:        70112 kB
LowTotal:       903652 kB
LowFree:        841272 kB
SwapTotal:     2097892 kB
SwapFree:      2095888 kB
Dirty:              48 kB
Writeback:           0 kB
Mapped:           5100 kB
Slab:            14772 kB
Committed_AS:    63860 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-23 09:38:02 (client local time) WITH STATUS 30 IN 77.1513 SECONDS
stats: 16733 0 77.1513 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 0.057 s
c Initial Lower Bound: 19
c Lower Bound Elapsed time: 0.00775
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 70 @ 8.267
c NEW SOLUTION FOUND: 57 @ 8.94
c NEW SOLUTION FOUND: 55 @ 12.013
c NEW SOLUTION FOUND: 53 @ 12.096
c NEW SOLUTION FOUND: 45 @ 16.344
c NEW SOLUTION FOUND: 41 @ 17.805
c NEW SOLUTION FOUND: 38 @ 54.264
c NEW SOLUTION FOUND: 35 @ 75.388
c NEW SOLUTION FOUND: 34 @ 75.524
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: 77.118 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): 0.82 0.93 0.92 2/55 4966
Raw data (stat): 4966 (runsolver) R 4965 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 820548497 1056768 100 4294967295 134512640 135381576 3221221680 3221216896 135158418 0 2147483391 1 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.0001 s]
Raw data (loadavg): 0.85 0.93 0.92 2/55 4966
Raw data (stat): 4966 (bsolo_lpr_cuts) R 4965 7876 7672 0 -1 0 5473 0 0 0 963 33 0 0 25 0 1 0 820548497 8531968 1350 4294967295 134512640 134714508 3221221776 3221218376 1075850664 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 2083 1350 1111 63 0 2020 0
vsize: 8332
[startup+20.0012 s]
Raw data (loadavg): 0.87 0.93 0.92 2/55 4966
Raw data (stat): 4966 (bsolo_lpr_cuts) R 4965 7876 7672 0 -1 0 10584 0 0 0 1928 68 0 0 25 0 1 0 820548497 11165696 2040 4294967295 134512640 134714508 3221221776 3221219560 1077410205 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 2726 2040 1111 63 0 2663 0
vsize: 10904
[startup+30.002 s]
Raw data (loadavg): 0.89 0.93 0.92 2/55 4966
Raw data (stat): 4966 (bsolo_lpr_cuts) R 4965 7876 7672 0 -1 0 15334 0 0 0 2900 96 0 0 25 0 1 0 820548497 13701120 2656 4294967295 134512640 134714508 3221221776 3221220220 1077781665 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 3345 2656 1111 63 0 3282 0
vsize: 13380
[startup+40.0019 s]
Raw data (loadavg): 0.91 0.93 0.92 2/55 4966
Raw data (stat): 4966 (bsolo_lpr_cuts) R 4965 7876 7672 0 -1 0 20029 0 0 0 3870 126 0 0 25 0 1 0 820548497 16220160 3255 4294967295 134512640 134714508 3221221776 3221219892 1077782939 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 3940 3254 1111 63 0 3877 0
vsize: 15840
[startup+50.0018 s]
Raw data (loadavg): 0.92 0.94 0.92 2/55 4966
Raw data (stat): 4966 (bsolo_lpr_cuts) R 4965 7876 7672 0 -1 0 24436 0 0 0 4842 154 0 0 25 0 1 0 820548497 18448384 3764 4294967295 134512640 134714508 3221221776 3221218264 1074798917 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 4457 3763 1111 63 0 4394 0
vsize: 18016
[startup+60.0019 s]
Raw data (loadavg): 0.93 0.94 0.92 2/55 4966
Raw data (stat): 4966 (bsolo_lpr_cuts) R 4965 7876 7672 0 -1 0 29304 0 0 0 5817 178 0 0 25 0 1 0 820548497 19955712 4183 4294967295 134512640 134714508 3221221776 3221219544 1077378677 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 4872 4183 1111 63 0 4809 0
vsize: 19488
[startup+70.0027 s]
Raw data (loadavg): 0.94 0.94 0.92 2/55 4966
Raw data (stat): 4966 (bsolo_lpr_cuts) R 4965 7876 7672 0 -1 0 35881 0 0 0 6792 203 0 0 25 0 1 0 820548497 21192704 4486 4294967295 134512640 134714508 3221221776 3221219968 1074153779 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 5174 4486 1111 63 0 5111 0
vsize: 20696
[startup+77.1931 s]
Raw data (loadavg): 0.95 0.94 0.92 1/54 4966
Raw data (stat): 4966 (bsolo_lpr_cuts) R 4965 7876 7672 0 -1 0 35881 0 0 0 6792 203 0 0 25 0 1 0 820548497 21192704 4486 4294967295 134512640 134714508 3221221776 3221219968 1074153779 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 5174 4486 1111 63 0 5111 0
vsize: 0

Child status: 30
Real time (s): 77.1926
CPU time (s): 77.1513
CPU user time (s): 74.8746
CPU system time (s): 2.27665
CPU usage (%): 99.9465
Max. virtual memory (Kb): 20696
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	34
#### END VERIFIER DATA ####