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-stein27.opb
MD5SUM	5af5f5067167ce7c0b9b9169af5e7adf
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	18
Optimality of the best value was proved	NO
Number of terms in the objective function	27
Biggest coefficient in the objective function	1
Number of bits for the biggest coefficient in the objective function	1
Sum of the numbers in the objective function	27
Number of bits of the sum of numbers in the objective function	5
Biggest number in a constraint	13
Number of bits of the biggest number in a constraint	4
Biggest sum of numbers in a constraint	40
Number of bits of the biggest sum of numbers	6
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.02084
Number of variables	27
Total number of constraints	145
Number of constraints which are clauses	117
Number of constraints which are cardinality constraints (but not clauses)	28
Number of constraints which are nor clauses,nor cardinality constraints	0
Minimum length of a constraint	1
Maximum length of a constraint	27

Trace number 15457

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc7 THE 2005-04-21 04:49:05 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17328 boxname=wulflinc7 idbench=1333 idsolver=12 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5af5f5067167ce7c0b9b9169af5e7adf  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-stein27.opb
REAL COMMAND:  minisat+ -cb -gs /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-stein27.opb /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-stein27.opb
IDLAUNCH: 17328
/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:        772488 kB
Buffers:         21356 kB
Cached:         218680 kB
SwapCached:          4 kB
Active:          98608 kB
Inactive:       144284 kB
HighTotal:      131008 kB
HighFree:         1764 kB
LowTotal:       903652 kB
LowFree:        770724 kB
SwapTotal:     2097136 kB
SwapFree:      2097132 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           6940 kB
Slab:            13692 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 04:49:07 (client local time) WITH STATUS 30 IN 1.38679 SECONDS
stats: 17328 0 1.38679 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 118 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): .....................................................................................................................
c ---[   0]---> BDD-cost:  194
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |     659     1953 |     219       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: 20[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:  310     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |     960     2670 |     320       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: 19[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        62 |     953     2655 |     317      61      338     5.5 |  0.000 % |
c ==============================================================================
c [1mFound solution: 18[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        69 |     969     2702 |     323      68      405     6.0 |  0.000 % |
c |       170 |     962     2687 |     355     167     1647     9.9 |  3.493 % |
c |       320 |     962     2687 |     390     317     3266    10.3 |  3.493 % |
c |       546 |     962     2687 |     429     300     3118    10.4 |  3.489 % |
c |       883 |     962     2687 |     472     388     3785     9.8 |  3.489 % |
c |      1389 |     962     2687 |     520     366     3511     9.6 |  3.489 % |
c |      2148 |     962     2687 |     572     542     4507     8.3 |  3.498 % |
c |      3288 |     925     2592 |     629     242     2308     9.5 |  5.819 % |
c |      4996 |     917     2574 |     692     493     4316     8.8 |  6.993 % |
c |      7559 |     866     2446 |     761     765     6448     8.4 | 11.168 % |
c ==============================================================================
c [1mOptimal solution: 18[0m
s OPTIMUM FOUND
v V0001_bit0 V0002_bit0 V0003_bit0 V0004_bit0 -V0005_bit0 V0006_bit0 V0007_bit0 V0008_bit0 V0009_bit0 V0010_bit0 V0011_bit0 V0012_bit0 V0013_bit0 -V0014_bit0 -V0015_bit0 V0016_bit0 -V0017_bit0 -V0018_bit0 -V0019_bit0 V0020_bit0 -V0021_bit0 V0022_bit0 V0023_bit0 -V0024_bit0 V0025_bit0 -V0026_bit0 V0027_bit0
c _______________________________________________________________________________
c 
c restarts              : 13
c conflicts             : 10245          (7436 /sec)
c decisions             : 11778          (8548 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 1.37779 s
c _______________________________________________________________________________
#### 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): 0.85 0.98 0.93 2/54 31642
Raw data (stat): 31642 (runsolver) R 31641 22932 22931 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 484108164 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 135158418 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+1.39609 s]
Raw data (loadavg): 0.85 0.98 0.93 1/53 31642
Raw data (stat): 31642 (runsolver) R 31641 22932 22931 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 484108164 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 135158418 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 30
Real time (s): 1.3958
CPU time (s): 1.38679
CPU user time (s): 1.37879
CPU system time (s): 0.007998
CPU usage (%): 99.3541
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	18
#### END VERIFIER DATA ####