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-misc01.opb
MD5SUM	c625a850881ad6f6b45ac56ea24bd563
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	1120576
Optimality of the best value was proved	NO
Number of terms in the objective function	21
Biggest coefficient in the objective function	1048576
Number of bits for the biggest coefficient in the objective function	21
Sum of the numbers in the objective function	2097151
Number of bits of the sum of numbers in the objective function	21
Biggest number in a constraint	1048576
Number of bits of the biggest number in a constraint	21
Biggest sum of numbers in a constraint	3441919
Number of bits of the biggest sum of numbers	22
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.297953
Number of variables	103
Total number of constraints	136
Number of constraints which are clauses	15
Number of constraints which are cardinality constraints (but not clauses)	88
Number of constraints which are nor clauses,nor cardinality constraints	33
Minimum length of a constraint	1
Maximum length of a constraint	91

Trace number 27438

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc7 THE 2005-05-24 22:03:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16927 boxname=wulflinc7 idbench=1303 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  c625a850881ad6f6b45ac56ea24bd563  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-misc01.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-misc01.opb
IDLAUNCH: 16927
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.050
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.050
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:        613528 kB
Buffers:         35684 kB
Cached:         364396 kB
SwapCached:        100 kB
Active:          76500 kB
Inactive:       326316 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        613248 kB
SwapTotal:     2097136 kB
SwapFree:      2096820 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6740 kB
Slab:            12636 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 22:03:30 (client local time) WITH STATUS 30 IN 11.4153 SECONDS
stats: 16927 0 11.4153 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 103 variables and 71 constraints.
c After prepocess the problem consists of 93 variables and 81 constraints.
c preprocess terminated 0.15 s
c Initial Lower Bound: 1056847
c Lower Bound Elapsed time: 0.0346
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 1132672 @ 0.693
c NEW SOLUTION FOUND: 1131776 @ 0.711
c NEW SOLUTION FOUND: 1127296 @ 0.723
c NEW SOLUTION FOUND: 1125952 @ 0.731
c NEW SOLUTION FOUND: 1125056 @ 0.737
c NEW SOLUTION FOUND: 1124416 @ 0.739
c NEW SOLUTION FOUND: 1120576 @ 0.744
s OPTIMUM FOUND
v -COL083_bit_7 -COL083_bit_6 -COL083_bit_5 -COL083_bit_4 -COL083_bit_3 -COL083_bit_2 COL083_bit_1 -COL083_bit0 COL083_bit1 -COL083_bit2 -COL083_bit3 COL083_bit4 COL083_bit5 -COL083_bit6 -COL083_bit7 -COL083_bit8 COL083_bit9 -COL083_bit10 -COL083_bit11 -COL083_bit12 COL083_bit13 COL003_bit0 -COL004_bit0 -COL005_bit0 -COL006_bit0 -COL007_bit0 -COL008_bit0 -COL009_bit0 -COL010_bit0 -COL011_bit0 -COL012_bit0 -COL013_bit0 -COL014_bit0 -COL017_bit0 -COL018_bit0 -COL019_bit0 -COL020_bit0 COL021_bit0 -COL022_bit0 -COL023_bit0 -COL024_bit0 -COL025_bit0 -COL026_bit0 -COL027_bit0 -COL028_bit0 -COL031_bit0 -COL032_bit0 -COL033_bit0 -COL034_bit0 -COL035_bit0 COL036_bit0 -COL037_bit0 -COL038_bit0 -COL039_bit0 -COL040_bit0 -COL041_bit0 COL042_bit0 -COL045_bit0 -COL046_bit0 -COL047_bit0 -COL048_bit0 COL049_bit0 -COL050_bit0 -COL051_bit0 -COL052_bit0 -COL053_bit0 -COL054_bit0 -COL055_bit0 -COL056_bit0 -COL059_bit0 -COL060_bit0 -COL061_bit0 -COL062_bit0 -COL063_bit0 -COL064_bit0 -COL065_bit0 -COL066_bit0 -COL067_bit0 COL068_bit0 -COL069_bit0 -COL070_bit0 COL073_bit0 COL074_bit0 COL075_bit0 -COL076_bit0 COL077_bit0 -COL078_bit0 -COL079_bit0 COL080_bit0 -COL081_bit0 COL082_bit0 -COL001_bit0 -COL002_bit0 -COL015_bit0 -COL016_bit0 -COL029_bit0 -COL030_bit0 -COL043_bit0 -COL044_bit0 -COL057_bit0 -COL058_bit0 -COL071_bit0 -COL072_bit0 
c Exit Code: 30
c Total time: 11.404 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): 0.62 0.88 0.88 2/54 31923
Raw data (stat): 31923 (runsolver) R 31922 24300 24299 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 775475797 1052672 99 4294967295 134512640 135381576 3221224496 3221219712 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0007 s]
Raw data (loadavg): 0.68 0.88 0.88 2/54 31923
Raw data (stat): 31923 (bsolo_lpr) R 31922 24300 24299 0 -1 0 5305 0 0 0 977 20 0 0 25 0 1 0 775475797 9482240 1628 4294967295 134512640 134714508 3221224592 3221223052 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2315 1628 1111 63 0 2252 0
vsize: 9260
[startup+11.435 s]
Raw data (loadavg): 0.68 0.88 0.88 1/53 31923
Raw data (stat): 31923 (bsolo_lpr) R 31922 24300 24299 0 -1 0 5305 0 0 0 977 20 0 0 25 0 1 0 775475797 9482240 1628 4294967295 134512640 134714508 3221224592 3221223052 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2315 1628 1111 63 0 2252 0
vsize: 0

Child status: 30
Real time (s): 11.4347
CPU time (s): 11.4153
CPU user time (s): 11.1823
CPU system time (s): 0.232964
CPU usage (%): 99.8298
Max. virtual memory (Kb): 9260
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	1120576
#### END VERIFIER DATA ####