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/MIPLIB/miplib3/normalized-mps-v2-20-10-stein27.opb
MD5SUM	5cfd2609faa97ca60458112609ce37ee
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	1.02284
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 31994

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-05-27 07:43:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=23426 boxname=wulflinc6 idbench=1070 idsolver=16 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5cfd2609faa97ca60458112609ce37ee  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-stein27.opb
REAL COMMAND:  minisat+_script -cb -gs /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-stein27.opb
IDLAUNCH: 23426
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        915948 kB
Buffers:         13444 kB
Cached:          82876 kB
SwapCached:        444 kB
Active:          19844 kB
Inactive:        78832 kB
HighTotal:      131008 kB
HighFree:        47852 kB
LowTotal:       903652 kB
LowFree:        868096 kB
SwapTotal:     2097136 kB
SwapFree:      2096012 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5700 kB
Slab:            14276 kB
Committed_AS:    63720 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-27 07:43:33 (client local time) WITH STATUS 30 IN 1.39979 SECONDS
stats: 23426 0 1.39979 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 ---[   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 ---[   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 ---[   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          (7485 /sec)
c decisions             : 11778          (8605 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 1.36879 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): 0.93 0.98 0.92 2/54 19227
Raw data (stat): 19227 (runsolver) R 19226 25568 25567 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 796230960 1052672 99 4294967295 134512640 135381576 3221224464 3221219672 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+1.40646 s]
Raw data (loadavg): 0.93 0.98 0.92 1/53 19231
Raw data (stat): 19227 (runsolver) R 19226 25568 25567 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 796230960 1052672 99 4294967295 134512640 135381576 3221224464 3221219672 135158418 0 2147483391 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): 1.40618
CPU time (s): 1.39979
CPU user time (s): 1.37379
CPU system time (s): 0.025996
CPU usage (%): 99.5456
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	18
#### END VERIFIER DATA ####