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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-markshare1_1.opb
MD5SUM	f88781e3d6e9a5487d13eaa213c27b55
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	4272
Optimality of the best value was proved	NO
Number of terms in the objective function	120
Biggest coefficient in the objective function	524288
Number of bits for the biggest coefficient in the objective function	20
Sum of the numbers in the objective function	6291450
Number of bits of the sum of numbers in the objective function	23
Biggest number in a constraint	524288
Number of bits of the biggest number in a constraint	20
Biggest sum of numbers in a constraint	6291450
Number of bits of the biggest sum of numbers	23
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1175.08
Number of variables	205
Total number of constraints	56
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	45
Number of constraints which are nor clauses,nor cardinality constraints	11
Minimum length of a constraint	1
Maximum length of a constraint	105

Trace number 25520

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-20 04:21:28 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=19476 boxname=wulflinc31 idbench=1499 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  f88781e3d6e9a5487d13eaa213c27b55  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-markshare1_1.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-markshare1_1.opb
IDLAUNCH: 19476
/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:        877424 kB
Buffers:         16596 kB
Cached:         120328 kB
SwapCached:        912 kB
Active:          68092 kB
Inactive:        70872 kB
HighTotal:      131008 kB
HighFree:        26572 kB
LowTotal:       903652 kB
LowFree:        850852 kB
SwapTotal:     2097892 kB
SwapFree:      2095952 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5088 kB
Slab:            12512 kB
Committed_AS:    63860 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-20 04:22:31 (client local time) WITH STATUS 0 IN 63.2494 SECONDS
stats: 19476 7 63.2494 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 205 variables and 17 constraints.
c After prepocess the problem consists of 193 variables and 17 constraints.
c preprocess terminated 0.11 s
c Initial Lower Bound: 0
c Lower Bound Elapsed time: 0.02
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 392350 @ 1.925
#### 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): 0.94 0.98 0.94 1/55 28471
Raw data (stat): 28471 (runsolver) R 28470 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 792733690 1056768 100 4294967295 134512640 135381576 3221221664 3221216880 135158418 0 0 1 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.0012 s]
Raw data (loadavg): 0.95 0.98 0.94 2/55 28471
Raw data (stat): 28471 (bsolo_lpr_cuts) R 28470 7876 7672 0 -1 0 7911 0 0 0 961 35 0 0 25 0 1 0 792733690 10244096 1769 4294967295 134512640 134714508 3221221760 3221217936 1074882576 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 2501 1769 1111 63 0 2438 0
vsize: 10004
[startup+20.0017 s]
Raw data (loadavg): 0.96 0.98 0.94 2/55 28471
Raw data (stat): 28471 (bsolo_lpr_cuts) R 28470 7876 7672 0 -1 0 16081 0 0 0 1938 57 0 0 25 0 1 0 792733690 11874304 2162 4294967295 134512640 134714508 3221221760 3221220080 1074039440 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 2899 2162 1111 63 0 2836 0
vsize: 11596
[startup+30.0026 s]
Raw data (loadavg): 0.96 0.98 0.94 2/55 28471
Raw data (stat): 28471 (bsolo_lpr_cuts) R 28470 7876 7672 0 -1 0 24912 0 0 0 2913 82 0 0 25 0 1 0 792733690 12853248 2455 4294967295 134512640 134714508 3221221760 3221220016 1073990141 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 3138 2455 1111 63 0 3075 0
vsize: 12552
[startup+40.003 s]
Raw data (loadavg): 0.97 0.98 0.94 2/55 28471
Raw data (stat): 28471 (bsolo_lpr_cuts) R 28470 7876 7672 0 -1 0 32560 0 0 0 3894 102 0 0 25 0 1 0 792733690 14188544 2775 4294967295 134512640 134714508 3221221760 3221219760 1074918597 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 3464 2775 1111 63 0 3401 0
vsize: 13856
[startup+50.0045 s]
Raw data (loadavg): 0.97 0.98 0.94 2/55 28471
Raw data (stat): 28471 (bsolo_lpr_cuts) R 28470 7876 7672 0 -1 0 39538 0 0 0 4876 120 0 0 25 0 1 0 792733690 14811136 2934 4294967295 134512640 134714508 3221221760 3221219900 1074867168 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 3616 2934 1111 63 0 3553 0
vsize: 14464
[startup+60.0049 s]
Raw data (loadavg): 0.98 0.98 0.94 2/55 28471
Raw data (stat): 28471 (bsolo_lpr_cuts) R 28470 7876 7672 0 -1 0 46887 0 0 0 5859 137 0 0 25 0 1 0 792733690 15577088 3039 4294967295 134512640 134714508 3221221760 3221217772 1074788944 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 3803 3039 1111 63 0 3740 0
vsize: 15212
[startup+63.2864 s]
Raw data (loadavg): 0.98 0.98 0.94 1/54 28471
Raw data (stat): 28471 (bsolo_lpr_cuts) R 28470 7876 7672 0 -1 0 46887 0 0 0 5859 137 0 0 25 0 1 0 792733690 15577088 3039 4294967295 134512640 134714508 3221221760 3221217772 1074788944 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 3803 3039 1111 63 0 3740 0
vsize: 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 63.2858
CPU time (s): 63.2494
CPU user time (s): 61.7996
CPU system time (s): 1.44978
CPU usage (%): 99.9424
Max. virtual memory (Kb): 15212
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####