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-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 15690

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc20 THE 2005-04-21 05:46:11 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16741 boxname=wulflinc20 idbench=1288 idsolver=10 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9e4c4999c6f95fcef879d3d86840d71a  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-bm23.opb
REAL COMMAND:  minisat+ -ca /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-bm23.opb /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-bm23.opb
IDLAUNCH: 16741
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.215
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		: 451.215
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        868596 kB
Buffers:          8608 kB
Cached:         134016 kB
SwapCached:        516 kB
Active:          30480 kB
Inactive:       114112 kB
HighTotal:      131008 kB
HighFree:        35784 kB
LowTotal:       903652 kB
LowFree:        832812 kB
SwapTotal:     2097892 kB
SwapFree:      2096480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5112 kB
Slab:            15856 kB
Committed_AS:    63584 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-21 05:47:50 (client local time) WITH STATUS 30 IN 98.1501 SECONDS
stats: 16741 0 98.1501 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]---> Adder-cost: 72   maxlim: 51   bits: 7/6
c ---[  18]---> Adder-cost: 72   maxlim: 66   bits: 7/7
c ---[  17]---> Adder-cost: 68   maxlim: 67   bits: 7/7
c ---[  16]---> Adder-cost: 72   maxlim: 30   bits: 6/5
c ---[  15]---> Adder-cost: 82   maxlim: 67   bits: 8/7
c ---[  14]---> Adder-cost: 79   maxlim: 51   bits: 7/6
c ---[  13]---> Adder-cost: 62   maxlim: 48   bits: 7/6
c ---[  12]---> Adder-cost: 76   maxlim: 55   bits: 7/6
c ---[  11]---> Adder-cost: 64   maxlim: 50   bits: 7/6
c ---[  10]---> Adder-cost: 28   maxlim: 4   bits: 4/3
c ---[   9]---> Adder-cost: 68   maxlim: 53   bits: 7/6
c ---[   8]---> Adder-cost: 68   maxlim: 54   bits: 7/6
c ---[   7]---> Adder-cost: 59   maxlim: 36   bits: 7/6
c ---[   6]---> Adder-cost: 71   maxlim: 45   bits: 7/6
c ---[   5]---> Adder-cost: 66   maxlim: 53   bits: 7/6
c ---[   4]---> Adder-cost: 86   maxlim: 54   bits: 7/6
c ---[   3]---> Adder-cost: 59   maxlim: 40   bits: 7/6
c ---[   2]---> Adder-cost: 61   maxlim: 47   bits: 7/6
c ---[   1]---> Adder-cost: 74   maxlim: 92   bits: 8/7
c ---[   0]---> Adder-cost: 59   maxlim: 49   bits: 7/6
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |    8702    30830 |    2900       0        0     nan |  0.000 % |
c |       100 |    8702    30830 |    3190     100      992     9.9 |  4.796 % |
c |       250 |    8702    30830 |    3509     250     4170    16.7 |  4.796 % |
c |       477 |    8702    30830 |    3859     477     8399    17.6 |  4.796 % |
c |       815 |    8702    30830 |    4245     815    13930    17.1 |  4.796 % |
c |      1321 |    8702    30830 |    4670    1321    23833    18.0 |  4.796 % |
c |      2080 |    8702    30830 |    5137    2080    38152    18.3 |  4.796 % |
c |      3220 |    8702    30830 |    5651    3220    60851    18.9 |  4.796 % |
c |      4928 |    8702    30830 |    6216    4928    90899    18.4 |  4.796 % |
c |      7493 |    8702    30830 |    6838    4286    66931    15.6 |  4.796 % |
c |     11337 |    8702    30830 |    7521    4627    70269    15.2 |  4.796 % |
c |     17103 |    8702    30830 |    8274    6493   110380    17.0 |  4.796 % |
c |     25754 |    8702    30830 |    9101    6695   106041    15.8 |  4.796 % |
c ==============================================================================
c [1mFound solution: 56[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 72   maxlim: 68   bits: 7/7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     28685 |    9175    32513 |    3058    4998    78635    15.7 |  4.796 % |
c |     28785 |    9175    32513 |    3363    2599    38590    14.8 |  4.759 % |
c |     28937 |    9175    32513 |    3700    2751    40869    14.9 |  4.759 % |
c |     29164 |    9175    32513 |    4070    2978    44987    15.1 |  4.759 % |
c |     29502 |    9175    32513 |    4477    3316    50929    15.4 |  4.759 % |
c |     30009 |    9175    32513 |    4924    3823    59454    15.6 |  4.759 % |
c |     30768 |    9175    32513 |    5417    4582    72551    15.8 |  4.759 % |
c |     31907 |    9175    32513 |    5959    2914    41883    14.4 |  4.759 % |
c |     33616 |    9175    32513 |    6555    4623    72973    15.8 |  4.759 % |
c ==============================================================================
c [1mFound solution: 45[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 79   bits: 7/7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     35319 |    9176    32516 |    3058    6326   103508    16.4 |  4.759 % |
c |     35419 |    9176    32516 |    3363    1682    22307    13.3 |  4.823 % |
c |     35569 |    9176    32516 |    3700    1832    25475    13.9 |  4.823 % |
c |     35794 |    9176    32516 |    4070    2057    29800    14.5 |  4.823 % |
c |     36133 |    9176    32516 |    4477    2396    35615    14.9 |  4.823 % |
c |     36639 |    9176    32516 |    4924    2902    45030    15.5 |  4.823 % |
c |     37399 |    9176    32516 |    5417    3662    57069    15.6 |  4.823 % |
c |     38540 |    9176    32516 |    5959    4803    74556    15.5 |  4.823 % |
c |     40249 |    9176    32516 |    6555    3472    51085    14.7 |  4.823 % |
c |     42811 |    9176    32516 |    7210    6034    91019    15.1 |  4.823 % |
c |     46655 |    9176    32516 |    7931    6190    89046    14.4 |  4.823 % |
c |     52421 |    9176    32516 |    8724    7916   133950    16.9 |  4.823 % |
c |     61073 |    9176    32516 |    9597    7686   122000    15.9 |  4.823 % |
c |     74047 |    9176    32516 |   10557    5951    90564    15.2 |  4.823 % |
c ==============================================================================
c [1mFound solution: 42[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 82   bits: 7/7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     76283 |    9184    32551 |    3061    8187   137734    16.8 |  4.823 % |
c |     76384 |    9184    32551 |    3367    2148    33182    15.4 |  4.950 % |
c |     76536 |    9184    32551 |    3703    2300    35366    15.4 |  4.950 % |
c |     76761 |    9184    32551 |    4074    2525    38962    15.4 |  4.950 % |
c |     77100 |    9184    32551 |    4481    2864    43988    15.4 |  4.950 % |
c |     77608 |    9184    32551 |    4929    3372    53292    15.8 |  4.950 % |
c |     78368 |    9184    32551 |    5422    4132    68777    16.6 |  4.950 % |
c |     79509 |    9184    32551 |    5965    5273    91157    17.3 |  4.950 % |
c |     81217 |    9184    32551 |    6561    3869    60774    15.7 |  4.950 % |
c |     83779 |    9184    32551 |    7217    6431   106245    16.5 |  4.950 % |
c ==============================================================================
c [1mFound solution: 41[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 83   bits: 7/7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     85280 |    9185    32556 |    3061    4250    63901    15.0 |  4.950 % |
c |     85380 |    9185    32556 |    3367    2225    30397    13.7 |  5.013 % |
c |     85531 |    9185    32556 |    3703    2376    32873    13.8 |  5.013 % |
c |     85757 |    9185    32556 |    4074    2602    37961    14.6 |  5.013 % |
c |     86094 |    9185    32556 |    4481    2939    45113    15.3 |  5.013 % |
c ==============================================================================
c [1mFound solution: 34[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 90   bits: 7/7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     86225 |    9193    32591 |    3064    3070    47511    15.5 |  5.013 % |
c |     86325 |    9193    32591 |    3370    3170    49330    15.6 |  5.200 % |
c |     86475 |    9193    32591 |    3707    3320    51694    15.6 |  5.200 % |
c |     86700 |    9193    32591 |    4078    3545    56099    15.8 |  5.200 % |
c |     87039 |    9193    32591 |    4486    3884    62679    16.1 |  5.200 % |
c |     87547 |    9193    32591 |    4934    4392    72877    16.6 |  5.200 % |
c |     88306 |    9193    32591 |    5428    5151    86336    16.8 |  5.200 % |
c |     89445 |    9193    32591 |    5970    3432    54446    15.9 |  5.200 % |
c |     91153 |    9193    32591 |    6567    5140    78633    15.3 |  5.200 % |
c |     93715 |    9193    32591 |    7224    4337    62992    14.5 |  5.200 % |
c |     97560 |    9193    32591 |    7947    4515    59962    13.3 |  5.200 % |
c |    103328 |    9193    32591 |    8741    6256    79727    12.7 |  5.200 % |
c |    111977 |    9193    32591 |    9616    6005    75297    12.5 |  5.200 % |
c |    124953 |    9193    32591 |   10577    9225   120036    13.0 |  5.200 % |
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              : 65
c conflicts             : 138624         (1413 /sec)
c decisions             : 159065         (1621 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 98.1121 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): 0.83 0.93 0.91 2/54 29226
Raw data (stat): 29226 (runsolver) R 29225 27565 27564 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 542666553 1052672 99 4294967295 134512640 135381576 3221224448 3221219692 135158418 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0017 s]
Raw data (loadavg): 0.85 0.93 0.91 2/54 29226
Raw data (stat): 29226 (minisat+) R 29225 27565 27564 0 -1 0 679 0 0 0 997 1 0 0 25 0 1 0 542666553 4366336 657 4294967295 134512640 134672761 3221224544 3221223712 134561118 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 1066 657 603 41 0 1025 0
vsize: 4264
[startup+20.002 s]
Raw data (loadavg): 0.88 0.93 0.91 2/54 29226
Raw data (stat): 29226 (minisat+) R 29225 27565 27564 0 -1 0 744 0 0 0 1996 2 0 0 25 0 1 0 542666553 4632576 722 4294967295 134512640 134672761 3221224544 3221223744 134557836 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 1131 722 603 41 0 1090 0
vsize: 4524
[startup+30.0015 s]
Raw data (loadavg): 0.89 0.93 0.91 2/54 29226
Raw data (stat): 29226 (minisat+) R 29225 27565 27564 0 -1 0 756 0 0 0 2995 2 0 0 25 0 1 0 542666553 4632576 734 4294967295 134512640 134672761 3221224544 3221223712 134560869 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1131 734 603 41 0 1090 0
vsize: 4524
[startup+40.0015 s]
Raw data (loadavg): 0.91 0.93 0.91 2/54 29226
Raw data (stat): 29226 (minisat+) R 29225 27565 27564 0 -1 0 778 0 0 0 3995 2 0 0 25 0 1 0 542666553 4780032 756 4294967295 134512640 134672761 3221224544 3221223648 134554636 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1167 756 603 41 0 1126 0
vsize: 4668
[startup+50.002 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 29226
Raw data (stat): 29226 (minisat+) R 29225 27565 27564 0 -1 0 803 0 0 0 4995 2 0 0 25 0 1 0 542666553 4911104 781 4294967295 134512640 134672761 3221224544 3221223712 134560892 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1199 781 603 41 0 1158 0
vsize: 4796
[startup+60.0017 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 29226
Raw data (stat): 29226 (minisat+) R 29225 27565 27564 0 -1 0 810 0 0 0 5995 2 0 0 25 0 1 0 542666553 4911104 788 4294967295 134512640 134672761 3221224544 3221223712 134560898 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1199 788 603 41 0 1158 0
vsize: 4796
[startup+70.003 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 29226
Raw data (stat): 29226 (minisat+) R 29225 27565 27564 0 -1 0 811 0 0 0 6995 3 0 0 25 0 1 0 542666553 4911104 789 4294967295 134512640 134672761 3221224544 3221223712 134560858 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 1199 789 603 41 0 1158 0
vsize: 4796
[startup+80.0031 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 29226
Raw data (stat): 29226 (minisat+) R 29225 27565 27564 0 -1 0 821 0 0 0 7994 3 0 0 25 0 1 0 542666553 4911104 799 4294967295 134512640 134672761 3221224544 3221223712 134560898 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1199 799 603 41 0 1158 0
vsize: 4796
[startup+90.0028 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 29226
Raw data (stat): 29226 (minisat+) R 29225 27565 27564 0 -1 0 827 0 0 0 8994 3 0 0 25 0 1 0 542666553 5054464 805 4294967295 134512640 134672761 3221224544 3221223712 134560869 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1234 805 603 41 0 1193 0
vsize: 4936
[startup+98.1717 s]
Raw data (loadavg): 0.96 0.94 0.91 1/53 29226
Raw data (stat): 29226 (minisat+) R 29225 27565 27564 0 -1 0 827 0 0 0 8994 3 0 0 25 0 1 0 542666553 5054464 805 4294967295 134512640 134672761 3221224544 3221223712 134560869 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1234 805 603 41 0 1193 0
vsize: 0

Child status: 30
Real time (s): 98.1715
CPU time (s): 98.1501
CPU user time (s): 98.1131
CPU system time (s): 0.036994
CPU usage (%): 99.9782
Max. virtual memory (Kb): 4936
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	34
#### END VERIFIER DATA ####