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-p0040.opb
MD5SUM	1c249519911563f3292efb34f4875b44
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	62027
Optimality of the best value was proved	NO
Number of terms in the objective function	40
Biggest coefficient in the objective function	8161
Number of bits for the biggest coefficient in the objective function	13
Sum of the numbers in the objective function	265332
Number of bits of the sum of numbers in the objective function	19
Biggest number in a constraint	8161
Number of bits of the biggest number in a constraint	13
Biggest sum of numbers in a constraint	265332
Number of bits of the biggest sum of numbers	19
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.293954
Number of variables	40
Total number of constraints	63
Number of constraints which are clauses	10
Number of constraints which are cardinality constraints (but not clauses)	50
Number of constraints which are nor clauses,nor cardinality constraints	3
Minimum length of a constraint	1
Maximum length of a constraint	10

Trace number 18974

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc20 THE 2005-04-21 17:42:24 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17108 boxname=wulflinc20 idbench=1316 idsolver=13 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1c249519911563f3292efb34f4875b44  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-p0040.opb
REAL COMMAND:  minisat+ -w /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-p0040.opb /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-p0040.opb
IDLAUNCH: 17108
/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:        687100 kB
Buffers:         20104 kB
Cached:         304284 kB
SwapCached:        516 kB
Active:          13044 kB
Inactive:       313312 kB
HighTotal:      131008 kB
HighFree:        99120 kB
LowTotal:       903652 kB
LowFree:        587980 kB
SwapTotal:     2097892 kB
SwapFree:      2096480 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5116 kB
Slab:            15424 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-21 17:42:55 (client local time) WITH STATUS 30 IN 30.7973 SECONDS
stats: 17108 0 30.7973 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 23 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: ##########
c   -- Clauses(.)/Splits(s): .
c ---[  21]---> BDD-cost:    5
c ---[  19]---> BDD-cost:    5
c ---[  17]---> BDD-cost:    5
c ---[  15]---> BDD-cost:    5
c ---[  13]---> BDD-cost:    5
c ---[  11]---> BDD-cost:    5
c ---[   9]---> BDD-cost:    5
c ---[   7]---> BDD-cost:    5
c ---[   5]---> BDD-cost:    5
c ---[   3]---> BDD-cost:    5
c ---[   2]---> BDD-cost:   17
c ---[   1]---> BDD-cost:   16
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |     329      918 |     109       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: 66539[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost: 7884     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |   20956    49285 |    6985       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: 65013[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:   10     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        41 |   21532    50778 |    7177      23      126     5.5 |  0.000 % |
c ==============================================================================
c [1mFound solution: 63421[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    8     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        43 |   22064    52090 |    7354      25      135     5.4 |  0.000 % |
c ==============================================================================
c [1mFound solution: 62855[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:   10     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        48 |   22244    52546 |    7414      30      361    12.0 |  0.000 % |
c |       148 |   22132    52294 |    8155     128     6819    53.3 |  2.446 % |
c |       298 |   22094    52208 |    8970     277     7808    28.2 |  2.595 % |
c |       523 |   22010    52018 |    9868     409    14669    35.9 |  2.867 % |
c |       860 |   21767    51471 |   10854     730    24022    32.9 |  3.723 % |
c |      1367 |   21551    50982 |   11940    1211    40250    33.2 |  4.511 % |
c |      2127 |   21468    50790 |   13134    1970    62728    31.8 |  4.851 % |
c |      3268 |   20534    48655 |   14447    3025    92116    30.5 |  8.479 % |
c ==============================================================================
c [1mFound solution: 62524[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:   11     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |      4072 |   20663    48978 |    6887    3827   102741    26.8 |  8.479 % |
c |      4172 |   20663    48978 |    7575    3927   105218    26.8 |  8.652 % |
c |      4322 |   20567    48756 |    8333    4072   108004    26.5 |  9.043 % |
c |      4548 |   20533    48680 |    9166    4296   111561    26.0 |  9.166 % |
c |      4885 |   20012    47470 |   10083    3770    98813    26.2 | 11.216 % |
c |      5391 |   20012    47470 |   11091    4276   110299    25.8 | 11.216 % |
c |      6151 |   20012    47470 |   12200    5036   125757    25.0 | 11.216 % |
c |      7291 |   20012    47470 |   13420    6176   148071    24.0 | 11.216 % |
c |      9000 |   20012    47470 |   14762    7885   181426    23.0 | 11.216 % |
c ==============================================================================
c [1mFound solution: 62260[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    8     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     10466 |   20048    47564 |    6682    9351   209174    22.4 | 11.216 % |
c |     10566 |   20048    47564 |    7350    4776    77835    16.3 | 11.218 % |
c |     10717 |   20048    47564 |    8085    4927    80661    16.4 | 11.218 % |
c |     10943 |   20048    47564 |    8893    5153    84126    16.3 | 11.218 % |
c |     11280 |   20048    47564 |    9783    5490    90502    16.5 | 11.217 % |
c |     11786 |   20048    47564 |   10761    5996    97811    16.3 | 11.218 % |
c ==============================================================================
c [1mFound solution: 62191[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    9     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     12326 |   20067    47611 |    6689    6536   108596    16.6 | 11.218 % |
c |     12427 |   20067    47611 |    7357    6637   110297    16.6 | 11.222 % |
c |     12578 |   20067    47611 |    8093    6788   112539    16.6 | 11.222 % |
c |     12804 |   20067    47611 |    8903    7014   115570    16.5 | 11.222 % |
c |     13141 |   20067    47611 |    9793    7351   121192    16.5 | 11.222 % |
c ==============================================================================
c [1mFound solution: 62180[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    7     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     13644 |   20082    47648 |    6694    7854   131771    16.8 | 11.222 % |
c |     13745 |   20082    47648 |    7363    4028    58010    14.4 | 11.228 % |
c |     13895 |   20082    47648 |    8099    4178    60542    14.5 | 11.229 % |
c ==============================================================================
c [1mFound solution: 62169[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    9     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     14100 |   20101    47695 |    6700    4383    64367    14.7 | 11.229 % |
c ==============================================================================
c [1mFound solution: 62134[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    9     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     14105 |   20120    47742 |    6706    4388    64408    14.7 | 11.229 % |
c ==============================================================================
c [1mFound solution: 62131[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    6     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     14198 |   20134    47776 |    6711    4481    66496    14.8 | 11.229 % |
c ==============================================================================
c [1mFound solution: 62101[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    9     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     14203 |   20155    47827 |    6718    4486    66722    14.9 | 11.229 % |
c ==============================================================================
c [1mFound solution: 62094[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:   11     Base: 3 3 3 3 3 3 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     14206 |   20182    47892 |    6727    4489    66914    14.9 | 11.229 % |
c |     14306 |   20000    47484 |    7399    4583    68022    14.8 | 11.823 % |
c |     14458 |   20000    47484 |    8139    4735    70080    14.8 | 11.822 % |
c |     14683 |   18702    44489 |    8953    3696    53546    14.5 | 16.928 % |
c |     15020 |   17113    40815 |    9849    2626    36522    13.9 | 23.107 % |
c ==============================================================================
c [1mFound solution: 62051[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost: 3632     Base: 2 3 3 5 2 2 2 7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     15290 |   21785    51847 |    7261    1141    16712    14.6 | 23.107 % |
c |     15390 |   19146    45770 |    7987     740    11591    15.7 | 37.406 % |
c ==============================================================================
c [1mFound solution: 62027[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> BDD-cost:  313
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     15406 |   17267    42517 |    5755     445     5748    12.9 | 37.406 % |
c ==============================================================================
c [1mOptimal solution: 62027[0m
s OPTIMUM FOUND
v -C1001_bit0 C1002_bit0 -C1003_bit0 -C1004_bit0 -C1005_bit0 C1006_bit0 -C1007_bit0 -C1008_bit0 C1009_bit0 -C1010_bit0 -C1011_bit0 -C1012_bit0 -C1013_bit0 -C1014_bit0 C1015_bit0 -C1016_bit0 -C1017_bit0 C1018_bit0 -C1019_bit0 -C1020_bit0 -C1021_bit0 C1022_bit0 -C1023_bit0 -C1024_bit0 -C1025_bit0 C1026_bit0 -C1027_bit0 -C1028_bit0 C1029_bit0 -C1030_bit0 -C1031_bit0 -C1032_bit0 -C1033_bit0 C1034_bit0 -C1035_bit0 -C1036_bit0 -C1037_bit0 C1038_bit0 -C1039_bit0 -C1040_bit0
c _______________________________________________________________________________
c 
c restarts              : 47
c conflicts             : 15433          (506 /sec)
c decisions             : 23407          (767 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 30.5204 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): 0.92 0.95 0.90 2/54 10222
Raw data (stat): 10222 (runsolver) R 10221 27565 27564 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 546964422 1052672 99 4294967295 134512640 135381576 3221224448 3221219692 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+10 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 10222
Raw data (stat): 10222 (minisat+) R 10221 27565 27564 0 -1 0 3241 0 0 0 990 8 0 0 25 0 1 0 546964422 5943296 1033 4294967295 134512640 134672761 3221224544 3221223600 134565045 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1451 1033 603 41 0 1410 0
vsize: 5804
[startup+20.0007 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 10222
Raw data (stat): 10222 (minisat+) R 10221 27565 27564 0 -1 0 4385 0 0 0 1986 11 0 0 25 0 1 0 546964422 6647808 1201 4294967295 134512640 134672761 3221224544 3221223648 134560289 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1623 1201 603 41 0 1582 0
vsize: 6492
[startup+30.0016 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 10222
Raw data (stat): 10222 (minisat+) R 10221 27565 27564 0 -1 0 9655 0 0 0 2972 26 0 0 25 0 1 0 546964422 8040448 1527 4294967295 134512640 134672761 3221224544 3221223648 134559887 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 1963 1527 603 41 0 1922 0
vsize: 7852
[startup+30.8157 s]
Raw data (loadavg): 0.95 0.96 0.91 1/53 10222
Raw data (stat): 10222 (minisat+) R 10221 27565 27564 0 -1 0 9655 0 0 0 2972 26 0 0 25 0 1 0 546964422 8040448 1527 4294967295 134512640 134672761 3221224544 3221223648 134559887 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 1963 1527 603 41 0 1922 0
vsize: 0

Child status: 30
Real time (s): 30.8155
CPU time (s): 30.7973
CPU user time (s): 30.5284
CPU system time (s): 0.268959
CPU usage (%): 99.941
Max. virtual memory (Kb): 7852
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	62027
#### END VERIFIER DATA ####