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-egout.opb
MD5SUM	46c4db5f8baf54496e00a723c85beb20
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	1.04084
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 27487

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-05-24 22:24:10 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16785 boxname=wulflinc27 idbench=1292 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  46c4db5f8baf54496e00a723c85beb20  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-egout.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-egout.opb
IDLAUNCH: 16785
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
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	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
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:        856672 kB
Buffers:         13884 kB
Cached:         143168 kB
SwapCached:        640 kB
Active:          37592 kB
Inactive:       121964 kB
HighTotal:      131008 kB
HighFree:         1176 kB
LowTotal:       903652 kB
LowFree:        855496 kB
SwapTotal:     2097892 kB
SwapFree:      2096760 kB
Dirty:             200 kB
Writeback:           0 kB
Mapped:           5648 kB
Slab:            13004 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-24 22:25:12 (client local time) WITH STATUS 0 IN 60.9517 SECONDS
stats: 16785 7 60.9517 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 1.669 s
c Initial Lower Bound: 48825430
c Lower Bound Elapsed time: 0.0575
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 90759296 @ 12.216
c NEW SOLUTION FOUND: 90751360 @ 12.319
c NEW SOLUTION FOUND: 87197312 @ 12.322
c NEW SOLUTION FOUND: 87191936 @ 12.533
c NEW SOLUTION FOUND: 87186560 @ 12.904
c NEW SOLUTION FOUND: 86908800 @ 13.145
c NEW SOLUTION FOUND: 83354752 @ 13.185
c NEW SOLUTION FOUND: 83347328 @ 17.285

#### 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 0.97 0.91 2/54 8951
Raw data (stat): 8951 (runsolver) R 8950 3394 3393 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 833808807 1052672 99 4294967295 134512640 135381576 3221224480 3221219692 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0012 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 8951
Raw data (stat): 8951 (bsolo_lpr_cuts) R 8950 3394 3393 0 -1 0 7536 0 0 0 974 24 0 0 25 0 1 0 833808807 11382784 2093 4294967295 134512640 134714508 3221224592 3221222896 1074153822 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2779 2093 1111 63 0 2716 0
vsize: 11116
[startup+20.0016 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 8951
Raw data (stat): 8951 (bsolo_lpr_cuts) R 8950 3394 3393 0 -1 0 16439 0 0 0 1947 50 0 0 25 0 1 0 833808807 15106048 2961 4294967295 134512640 134714508 3221224592 3221221512 1074950114 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3688 2961 1111 63 0 3625 0
vsize: 14752
[startup+30.0025 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 8951
Raw data (stat): 8951 (bsolo_lpr_cuts) R 8950 3394 3393 0 -1 0 23415 0 0 0 2928 70 0 0 25 0 1 0 833808807 17559552 3555 4294967295 134512640 134714508 3221224592 3221220752 1075094860 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4287 3555 1111 63 0 4224 0
vsize: 17148
[startup+40.0027 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 8951
Raw data (stat): 8951 (bsolo_lpr_cuts) R 8950 3394 3393 0 -1 0 30961 0 0 0 3907 91 0 0 25 0 1 0 833808807 20488192 4320 4294967295 134512640 134714508 3221224592 3221223056 1074121065 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5002 4320 1111 63 0 4939 0
vsize: 20008
[startup+50.0031 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 8951
Raw data (stat): 8951 (bsolo_lpr_cuts) R 8950 3394 3393 0 -1 0 34806 0 0 0 4893 106 0 0 25 0 1 0 833808807 21069824 4463 4294967295 134512640 134714508 3221224592 3221222928 1074153815 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5144 4463 1111 63 0 5081 0
vsize: 20576
[startup+60.0029 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 8951
Raw data (stat): 8951 (bsolo_lpr_cuts) R 8950 3394 3393 0 -1 0 39865 0 0 0 5875 123 0 0 25 0 1 0 833808807 22269952 4712 4294967295 134512640 134714508 3221224592 3221223104 134648608 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5437 4712 1111 63 0 5374 0
vsize: 21748
[startup+60.9621 s]
Raw data (loadavg): 0.97 0.97 0.91 1/53 8951
Raw data (stat): 8951 (bsolo_lpr_cuts) R 8950 3394 3393 0 -1 0 39865 0 0 0 5875 123 0 0 25 0 1 0 833808807 22269952 4712 4294967295 134512640 134714508 3221224592 3221223104 134648608 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5437 4712 1111 63 0 5374 0
vsize: 0

Child status: 0
Real time (s): 60.9618
CPU time (s): 60.9517
CPU user time (s): 59.6769
CPU system time (s): 1.27481
CPU usage (%): 99.9835
Max. virtual memory (Kb): 21748
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####