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-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-markshare1_1.opb
MD5SUM	452acf9ed3adc2d2cfe293dad01c0934
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	167110
Optimality of the best value was proved	NO
Number of terms in the objective function	180
Biggest coefficient in the objective function	536870912
Number of bits for the biggest coefficient in the objective function	30
Sum of the numbers in the objective function	6442450938
Number of bits of the sum of numbers in the objective function	33
Biggest number in a constraint	536870912
Number of bits of the biggest number in a constraint	30
Biggest sum of numbers in a constraint	6442450938
Number of bits of the biggest sum of numbers	33
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1175.02
Number of variables	280
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	130

Trace number 41259

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-09 09:29:02 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29330 boxname=wulflinc2 idbench=1114 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  452acf9ed3adc2d2cfe293dad01c0934  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-markshare1_1.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-markshare1_1.opb
IDLAUNCH: 29330
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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	: 2
cpu MHz		: 451.191
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:        545160 kB
Buffers:         12520 kB
Cached:         455740 kB
SwapCached:       1484 kB
Active:          25332 kB
Inactive:       445024 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        544908 kB
SwapTotal:     2097136 kB
SwapFree:      2094616 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4964 kB
Slab:            13480 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 09:29:17 (client local time) WITH STATUS 0 IN 15.0777 SECONDS
stats: 29330 7 15.0777 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 280 variables and 17 constraints.
c After prepocess the problem consists of 226 variables and 17 constraints.
c preprocess terminated 0.124 s
c Initial Lower Bound: 0
c Lower Bound Elapsed time: 0.021
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 521216 @ 0.61
c NEW SOLUTION FOUND: 495576 @ 6.554
c NEW SOLUTION FOUND: 495312 @ 6.558
c NEW SOLUTION FOUND: 495104 @ 7.385
c NEW SOLUTION FOUND: 495078 @ 7.534
c NEW SOLUTION FOUND: 495052 @ 8.414
c NEW SOLUTION FOUND: 495026 @ 8.476
c NEW SOLUTION FOUND: 495012 @ 13.851
c NEW SOLUTION FOUND: 494436 @ 13.855

    c  Warning: NO Unit Constraints after backtrack??
	Continuing Execution....


c NEW SOLUTION FOUND: 494410 @ 14.591
#### 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): 0.94 0.93 0.90 2/54 24703
Raw data (stat): 24703 (runsolver) R 24702 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 909203701 884736 94 4294967295 134512640 135332820 3221224448 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0001 s]
Raw data (loadavg): 0.95 0.93 0.91 2/54 24703
Raw data (stat): 24703 (bsolo_lpr_cuts-) R 24702 31399 31398 0 -1 0 8827 0 0 0 966 31 0 0 25 0 1 0 909203701 13008896 2492 4294967295 134512640 134716908 3221224560 3221222976 1074116184 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3176 2492 1111 63 0 3113 0
vsize: 12704
[startup+15.0971 s]
Raw data (loadavg): 0.95 0.94 0.91 1/53 24703
Raw data (stat): 24703 (bsolo_lpr_cuts-) R 24702 31399 31398 0 -1 0 8827 0 0 0 966 31 0 0 25 0 1 0 909203701 13008896 2492 4294967295 134512640 134716908 3221224560 3221222976 1074116184 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3176 2492 1111 63 0 3113 0
vsize: 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 15.0968
CPU time (s): 15.0777
CPU user time (s): 14.6218
CPU system time (s): 0.45593
CPU usage (%): 99.8737
Max. virtual memory (Kb): 12704
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####