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/miplib/normalized-mps-v2-20-10-bm23.opb
MD5SUM	9e4c4999c6f95fcef879d3d86840d71a
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	34
Optimality of the best value was proved	NO
Number of terms in the objective function	27
Biggest coefficient in the objective function	9
Number of bits for the biggest coefficient in the objective function	4
Sum of the numbers in the objective function	124
Number of bits of the sum of numbers in the objective function	7
Biggest number in a constraint	65
Number of bits of the biggest number in a constraint	7
Biggest sum of numbers in a constraint	182
Number of bits of the biggest sum of numbers	8
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.25796
Number of variables	27
Total number of constraints	47
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	27
Number of constraints which are nor clauses,nor cardinality constraints	20
Minimum length of a constraint	1
Maximum length of a constraint	26

Trace number 31829

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc7 THE 2005-05-27 06:36:39 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=23260 boxname=wulflinc7 idbench=904 idsolver=16 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9e4c4999c6f95fcef879d3d86840d71a  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-bm23.opb
REAL COMMAND:  minisat+_script -cb -gs /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-bm23.opb
IDLAUNCH: 23260
/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:        869944 kB
Buffers:         33616 kB
Cached:         111212 kB
SwapCached:        692 kB
Active:          49660 kB
Inactive:        97268 kB
HighTotal:      131008 kB
HighFree:        57904 kB
LowTotal:       903652 kB
LowFree:        812040 kB
SwapTotal:     2097136 kB
SwapFree:      2095524 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5084 kB
Slab:            12236 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-27 06:36:45 (client local time) WITH STATUS 30 IN 5.85411 SECONDS
stats: 23260 0 5.85411 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 20 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[  19]---> BDD-cost:  465
c ---[  18]---> BDD-cost:  507
c ---[  17]---> BDD-cost:  365
c ---[  16]---> BDD-cost:  205
c ---[  15]---> BDD-cost:  492
c ---[  14]---> BDD-cost:  470
c ---[  13]---> BDD-cost:  306
c ---[  12]---> BDD-cost:  348
c ---[  11]---> BDD-cost:  367
c ---[  10]---> BDD-cost:   58
c ---[   9]---> BDD-cost:  327
c ---[   8]---> BDD-cost:  370
c ---[   7]---> BDD-cost:  325
c ---[   6]---> BDD-cost:  217
c ---[   5]---> BDD-cost:  308
c ---[   4]---> BDD-cost:  561
c ---[   3]---> BDD-cost:  290
c ---[   2]---> BDD-cost:  344
c ---[   1]---> BDD-cost:  425
c ---[   0]---> BDD-cost:  390
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |   18655    54458 |    6218       0        0     nan |  0.000 % |
c |       101 |   18655    54458 |    6839     101     1508    14.9 |  0.282 % |
c |       251 |   18655    54458 |    7523     251     3459    13.8 |  0.282 % |
c |       476 |   18655    54458 |    8276     476     6103    12.8 |  0.282 % |
c ==============================================================================
c [1mFound solution: 47[0m
c ---[   0]---> Sorter-cost:  702     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       545 |   19924    57427 |    6641     545     7011    12.9 |  0.282 % |
c |       645 |   19924    57427 |    7305     645     8377    13.0 |  0.276 % |
c ==============================================================================
c [1mFound solution: 45[0m
c ---[   0]---> Sorter-cost:    1     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       650 |   19929    57441 |    6643     650     8474    13.0 |  0.276 % |
c ==============================================================================
c [1mFound solution: 41[0m
c ---[   0]---> Sorter-cost:    1     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       730 |   19940    57469 |    6646     730     9603    13.2 |  0.276 % |
c ==============================================================================
c [1mFound solution: 39[0m
c ---[   0]---> Sorter-cost:    2     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       775 |   19944    57481 |    6648     775    10195    13.2 |  0.276 % |
c |       876 |   19944    57481 |    7312     876    11262    12.9 |  0.314 % |
c |      1028 |   19944    57481 |    8044    1028    13001    12.6 |  0.314 % |
c |      1255 |   19944    57481 |    8848    1255    15597    12.4 |  0.314 % |
c |      1592 |   19944    57481 |    9733    1592    19007    11.9 |  0.314 % |
c |      2098 |   19944    57481 |   10706    2098    24603    11.7 |  0.314 % |
c ==============================================================================
c [1mFound solution: 37[0m
c ---[   0]---> Sorter-cost:    1     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |      2773 |   19948    57492 |    6649    2773    32711    11.8 |  0.314 % |
c ==============================================================================
c [1mFound solution: 35[0m
c ---[   0]---> Sorter-cost:    2     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |      2833 |   19951    57499 |    6650    2833    33523    11.8 |  0.314 % |
c ==============================================================================
c [1mFound solution: 34[0m
c ---[   0]---> Sorter-cost:    3     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |      2838 |   19984    57580 |    6661    2838    33692    11.9 |  0.314 % |
c |      2940 |   19984    57580 |    7327    2940    35246    12.0 |  0.352 % |
c |      3090 |   19984    57580 |    8059    3090    37162    12.0 |  0.352 % |
c |      3315 |   19984    57580 |    8865    3315    39953    12.1 |  0.352 % |
c |      3652 |   19984    57580 |    9752    3652    43998    12.0 |  0.352 % |
c |      4158 |   18886    54831 |   10727     473     6035    12.8 |  3.927 % |
c ==============================================================================
c [1mOptimal solution: 34[0m
s OPTIMUM FOUND
v -C101_bit0 -C102_bit0 C103_bit0 -C104_bit0 C105_bit0 -C106_bit0 -C107_bit0 -C108_bit0 C109_bit0 -C110_bit0 -C111_bit0 -C112_bit0 -C113_bit0 -C114_bit0 C115_bit0 -C116_bit0 C117_bit0 -C118_bit0 -C119_bit0 C120_bit0 -C121_bit0 C122_bit0 -C123_bit0 -C124_bit0 -C125_bit0 -C126_bit0 C127_bit0
c _______________________________________________________________________________
c 
c restarts              : 22
c conflicts             : 4545           (784 /sec)
c decisions             : 15082          (2602 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 5.79712 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): 0.90 0.97 0.91 2/54 23331
Raw data (stat): 23331 (runsolver) R 23330 24300 24299 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 795838787 1052672 99 4294967295 134512640 135381576 3221224480 3221219688 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+5.86836 s]
Raw data (loadavg): 0.91 0.97 0.91 1/53 23335
Raw data (stat): 23331 (runsolver) R 23330 24300 24299 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 795838787 1052672 99 4294967295 134512640 135381576 3221224480 3221219688 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): 5.86811
CPU time (s): 5.85411
CPU user time (s): 5.80912
CPU system time (s): 0.044993
CPU usage (%): 99.7614
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	34
#### END VERIFIER DATA ####