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-misc02.opb
MD5SUM	a0ad7d9714fa2256add068ab80d287bd
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	1075471360
Optimality of the best value was proved	NO
Number of terms in the objective function	31
Biggest coefficient in the objective function	1073741824
Number of bits for the biggest coefficient in the objective function	31
Sum of the numbers in the objective function	2147483647
Number of bits of the sum of numbers in the objective function	31
Biggest number in a constraint	1073741824
Number of bits of the biggest number in a constraint	31
Biggest sum of numbers in a constraint	3234157567
Number of bits of the biggest sum of numbers	32
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	2.77858
Number of variables	89
Total number of constraints	97
Number of constraints which are clauses	7
Number of constraints which are cardinality constraints (but not clauses)	65
Number of constraints which are nor clauses,nor cardinality constraints	25
Minimum length of a constraint	1
Maximum length of a constraint	79

Trace number 30672

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc29 THE 2005-05-25 18:45:02 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=22104 boxname=wulflinc29 idbench=920 idsolver=15 numberseed=0
MD5SUM SOLVER: 34d34154b8ad81f02ee98439942e0814  /oldhome/oroussel/solvers/minisat+_script
MD5SUM BENCH:  a0ad7d9714fa2256add068ab80d287bd  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-misc02.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-misc02.opb
IDLAUNCH: 22104
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.020
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	: 3
cpu MHz		: 451.020
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:        452112 kB
Buffers:         35276 kB
Cached:         522092 kB
SwapCached:        572 kB
Active:          66132 kB
Inactive:       496772 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        451860 kB
SwapTotal:     2097892 kB
SwapFree:      2096728 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5612 kB
Slab:            13848 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 18:45:05 (client local time) WITH STATUS 30 IN 2.77858 SECONDS
stats: 22104 0 2.77858 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 53 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: ##############
c   -- Clauses(.)/Splits(s): .......
c ---[  51]---> Adder-cost: 442   maxlim: 1073742847   bits: 32/31
c ---[  49]---> BDD-cost:   17
c ---[  47]---> BDD-cost:   17
c ---[  45]---> BDD-cost:   17
c ---[  44]---> BDD-cost:   38
c ---[  43]---> BDD-cost:   38
c ---[  34]---> BDD-cost:   22
c ---[  32]---> BDD-cost:   22
c ---[  30]---> BDD-cost:   22
c ---[  28]---> BDD-cost:   22
c ---[  26]---> BDD-cost:   22
c ---[  24]---> BDD-cost:   22
c ---[  22]---> BDD-cost:   22
c ---[  20]---> BDD-cost:   22
c ---[  18]---> BDD-cost:   22
c ---[  16]---> BDD-cost:   22
c ---[  15]---> BDD-cost:    9
c ---[  14]---> BDD-cost:    9
c ---[  13]---> BDD-cost:    3
c ---[  12]---> BDD-cost:    3
c ---[  11]---> BDD-cost:   15
c ---[  10]---> BDD-cost:   15
c ---[   9]---> BDD-cost:   15
c ---[   8]---> BDD-cost:   15
c ---[   7]---> BDD-cost:   26
c ---[   6]---> BDD-cost:   26
c ---[   5]---> BDD-cost:   15
c ---[   4]---> BDD-cost:   15
c ---[   3]---> BDD-cost:   26
c ---[   2]---> BDD-cost:   26
c ---[   1]---> BDD-cost:   15
c ---[   0]---> BDD-cost:   15
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |    4499    14784 |    1499       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: 1076341760[0m
c ---[   0]---> BDD-cost:   20
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         3 |    4520    14834 |    1506       3       16     5.3 |  0.000 % |
c ==============================================================================
c [1mFound solution: 1076188160[0m
c ---[   0]---> BDD-cost:   20
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        28 |    4546    14892 |    1515      28      554    19.8 |  0.000 % |
c ==============================================================================
c [1mFound solution: 1076024320[0m
c ---[   0]---> BDD-cost:   16
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        93 |    4565    14934 |    1521      93     1396    15.0 |  0.000 % |
c ==============================================================================
c [1mFound solution: 1075799040[0m
c ---[   0]---> BDD-cost:   19
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       102 |    4582    14976 |    1527     102     1589    15.6 |  0.000 % |
c ==============================================================================
c [1mFound solution: 1075645440[0m
c ---[   0]---> BDD-cost:   18
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       102 |    4601    15019 |    1533     102     1589    15.6 |  0.000 % |
c ==============================================================================
c [1mFound solution: 1075563520[0m
c ---[   0]---> BDD-cost:   17
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       179 |    4618    15060 |    1539     179     4871    27.2 |  0.000 % |
c |       280 |    4618    15060 |    1692     280     6760    24.1 |  8.327 % |
c ==============================================================================
c [1mFound solution: 1075471360[0m
c ---[   0]---> BDD-cost:   15
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       336 |    4635    15098 |    1545     336     7591    22.6 |  8.327 % |
c |       436 |    4635    15098 |    1699     436    10648    24.4 |  8.368 % |
c |       586 |    4635    15098 |    1869     586    14021    23.9 |  8.368 % |
c |       812 |    4635    15098 |    2056     812    20303    25.0 |  8.368 % |
c |      1150 |    4635    15098 |    2262    1150    30674    26.7 |  8.368 % |
c |      1656 |    4635    15098 |    2488    1656    45965    27.8 |  8.368 % |
c |      2415 |    4635    15098 |    2737    2415    63036    26.1 |  8.368 % |
c ==============================================================================
c [1mOptimal solution: 1075471360[0m
s OPTIMUM FOUND
v -COL059_bit_10 -COL059_bit_9 -COL059_bit_8 -COL059_bit_7 -COL059_bit_6 -COL059_bit_5 -COL059_bit_4 -COL059_bit_3 -COL059_bit_2 -COL059_bit_1 COL059_bit0 -COL059_bit1 -COL059_bit2 COL059_bit3 COL059_bit4 -COL059_bit5 -COL059_bit6 COL059_bit7 -COL059_bit8 COL059_bit9 COL059_bit10 -COL059_bit11 -COL059_bit12 -COL059_bit13 -COL059_bit14 -COL059_bit15 -COL059_bit16 -COL059_bit17 -COL059_bit18 -COL059_bit19 COL059_bit20 -COL001_bit0 -COL002_bit0 COL003_bit0 -COL004_bit0 -COL005_bit0 -COL006_bit0 -COL007_bit0 -COL008_bit0 -COL009_bit0 -COL010_bit0 -COL011_bit0 -COL012_bit0 -COL013_bit0 -COL014_bit0 -COL015_bit0 -COL016_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 -COL029_bit0 COL030_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 -COL043_bit0 -COL044_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 -COL057_bit0 COL058_bit0
c _______________________________________________________________________________
c 
c restarts              : 15
c conflicts             : 3072           (1116 /sec)
c decisions             : 6114           (2221 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 2.75258 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 0.97 0.98 2/54 3824
Raw data (stat): 3824 (runsolver) R 3823 20001 20000 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 841135885 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+2.79417 s]
Raw data (loadavg): 0.86 0.97 0.98 1/53 3828
Raw data (stat): 3824 (runsolver) R 3823 20001 20000 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 841135885 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): 2.79393
CPU time (s): 2.77858
CPU user time (s): 2.75858
CPU system time (s): 0.019996
CPU usage (%): 99.4504
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	1075471360
#### END VERIFIER DATA ####