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/miplib3/normalized-mps-v2-13-7-egout.opb
MD5SUM	fd101f0ba1a3813e843a38997ab7ed84
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	58880896
Optimality of the best value was proved	NO
Number of terms in the objective function	1095
Biggest coefficient in the objective function	533200896
Number of bits for the biggest coefficient in the objective function	29
Sum of the numbers in the objective function	14929722305
Number of bits of the sum of numbers in the objective function	34
Biggest number in a constraint	533200896
Number of bits of the biggest number in a constraint	29
Biggest sum of numbers in a constraint	14929722305
Number of bits of the biggest sum of numbers	34
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.04984
Number of variables	1155
Total number of constraints	153
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	55
Number of constraints which are nor clauses,nor cardinality constraints	98
Minimum length of a constraint	1
Maximum length of a constraint	280

Trace number 25689

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-21 18:10:52 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=18293 boxname=wulflinc31 idbench=1408 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  fd101f0ba1a3813e843a38997ab7ed84  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-egout.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-egout.opb
IDLAUNCH: 18293
/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:        445556 kB
Buffers:          2416 kB
Cached:         554436 kB
SwapCached:        816 kB
Active:           8972 kB
Inactive:       549860 kB
HighTotal:      131008 kB
HighFree:         2716 kB
LowTotal:       903652 kB
LowFree:        442840 kB
SwapTotal:     2097892 kB
SwapFree:      2095944 kB
Dirty:          298292 kB
Writeback:           0 kB
Mapped:           4956 kB
Slab:            24532 kB
Committed_AS:    63860 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-21 18:11:56 (client local time) WITH STATUS 0 IN 62.1136 SECONDS
stats: 18293 7 62.1136 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 1155 variables and 134 constraints.
c After prepocess the problem consists of 481 variables and 145 constraints.
c preprocess terminated 1.719 s
c Initial Lower Bound: 48825430
c Lower Bound Elapsed time: 0.0585
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 90759296 @ 12.39
c NEW SOLUTION FOUND: 90751360 @ 12.494
c NEW SOLUTION FOUND: 87197312 @ 12.498
c NEW SOLUTION FOUND: 87191936 @ 12.711
c NEW SOLUTION FOUND: 87186560 @ 13.084
c NEW SOLUTION FOUND: 86908800 @ 13.328
c NEW SOLUTION FOUND: 83354752 @ 13.367
c NEW SOLUTION FOUND: 83347328 @ 17.531

#### 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): 1.70 2.46 1.70 1/55 14346
Raw data (stat): 14346 (runsolver) D 14345 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 18 0 1 0 806351736 1056768 100 4294967295 134512640 135381576 3221221680 3221216896 135158418 0 2147483391 1 90112 3225161850 0 0 17 0 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.0007 s]
Raw data (loadavg): 1.59 2.41 1.69 2/55 14346
Raw data (stat): 14346 (bsolo_lpr_cuts) R 14345 7876 7672 0 -1 0 6891 0 20 0 913 20 0 0 25 0 1 0 806351736 11399168 2094 4294967295 134512640 134714508 3221221776 3221219504 1075635647 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 2783 2094 1111 63 0 2720 0
vsize: 11132
[startup+20.0009 s]
Raw data (loadavg): 1.50 2.37 1.68 2/55 14346
Raw data (stat): 14346 (bsolo_lpr_cuts) R 14345 7876 7672 0 -1 0 16198 0 20 0 1881 52 0 0 25 0 1 0 806351736 14520320 2864 4294967295 134512640 134714508 3221221776 3221219888 1074867308 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 3545 2864 1111 63 0 3482 0
vsize: 14180
[startup+30.0005 s]
Raw data (loadavg): 1.42 2.32 1.68 2/55 14346
Raw data (stat): 14346 (bsolo_lpr_cuts) R 14345 7876 7672 0 -1 0 22325 0 20 0 2862 70 0 0 25 0 1 0 806351736 16510976 3350 4294967295 134512640 134714508 3221221776 3221220176 1074153792 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 4031 3350 1111 63 0 3968 0
vsize: 16124
[startup+40.0005 s]
Raw data (loadavg): 1.58 2.33 1.68 2/55 14346
Raw data (stat): 14346 (bsolo_lpr_cuts) R 14345 7876 7672 0 -1 0 30394 0 20 0 3841 92 0 0 25 0 1 0 806351736 20348928 4287 4294967295 134512640 134714508 3221221776 3221219504 1075828968 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 4968 4287 1111 63 0 4905 0
vsize: 19872
[startup+50.0006 s]
Raw data (loadavg): 1.49 2.28 1.68 2/55 14346
Raw data (stat): 14346 (bsolo_lpr_cuts) R 14345 7876 7672 0 -1 0 34679 0 20 0 4827 106 0 0 25 0 1 0 806351736 21073920 4464 4294967295 134512640 134714508 3221221776 3221219708 1077411564 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 5145 4464 1111 63 0 5082 0
vsize: 20580
[startup+60.0013 s]
Raw data (loadavg): 1.42 2.24 1.67 2/55 14346
Raw data (stat): 14346 (bsolo_lpr_cuts) R 14345 7876 7672 0 -1 0 38141 0 20 0 5811 122 0 0 25 0 1 0 806351736 21606400 4594 4294967295 134512640 134714508 3221221776 3221219504 1075635641 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 5275 4594 1111 63 0 5212 0
vsize: 21100
[startup+62.7755 s]
Raw data (loadavg): 1.38 2.22 1.66 1/54 14346
Raw data (stat): 14346 (bsolo_lpr_cuts) R 14345 7876 7672 0 -1 0 38141 0 20 0 5811 122 0 0 25 0 1 0 806351736 21606400 4594 4294967295 134512640 134714508 3221221776 3221219504 1075635641 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 5275 4594 1111 63 0 5212 0
vsize: 0

Child status: 0
Real time (s): 62.7749
CPU time (s): 62.1136
CPU user time (s): 60.7968
CPU system time (s): 1.3168
CPU usage (%): 98.9464
Max. virtual memory (Kb): 21100
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####