current bounds on the number of colors: 0 -- 78

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:39:15 2012

Optimize a model with 12597 rows, 3363 columns and 40599 nonzeros
Presolve time: 0.07s
Presolved: 12597 rows, 3363 columns, 40599 nonzeros
Variable types: 0 continuous, 3363 integer (3363 binary)

Root relaxation: objective 0.000000e+00, 190 iterations, 0.01 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

*    0     0               0       0.0000000    0.00000   0.0%     -    0s

Explored 0 nodes (371 simplex iterations) in 0.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%


current bounds on the number of colors: 0 -- 39

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:39:15 2012

Optimize a model with 6177 rows, 1803 columns and 19779 nonzeros
Presolve time: 0.02s
Presolved: 6177 rows, 1803 columns, 19779 nonzeros
Variable types: 0 continuous, 1803 integer (1803 binary)

Root relaxation: objective 0.000000e+00, 157 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

*    0     0               0       0.0000000    0.00000   0.0%     -    0s

Explored 0 nodes (289 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%


current bounds on the number of colors: 0 -- 19

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:39:16 2012

Optimize a model with 2967 rows, 1023 columns and 9369 nonzeros
Presolve time: 0.01s
Presolved: 2967 rows, 1023 columns, 9369 nonzeros
Variable types: 0 continuous, 1023 integer (1023 binary)

Root relaxation: objective 0.000000e+00, 159 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

*    0     0               0       0.0000000    0.00000   0.0%     -    0s

Explored 0 nodes (292 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%


current bounds on the number of colors: 0 -- 9

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:39:16 2012

Optimize a model with 1362 rows, 633 columns and 4164 nonzeros
Presolve time: 0.00s
Presolved: 1362 rows, 633 columns, 4164 nonzeros
Variable types: 0 continuous, 633 integer (633 binary)

Root relaxation: objective 0.000000e+00, 179 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0  148          -    0.00000     -      -    0s
     0     0    0.00000    0  140          -    0.00000     -      -    0s
     0     0    0.00000    0  112          -    0.00000     -      -    0s
     0     0    0.00000    0  204          -    0.00000     -      -    0s
     0     0    0.00000    0   71          -    0.00000     -      -    0s
     0     0    0.00000    0  151          -    0.00000     -      -    0s
     0     0    0.00000    0  190          -    0.00000     -      -    0s
     0     0    0.00000    0  175          -    0.00000     -      -    0s
     0     0    0.00000    0   72          -    0.00000     -      -    0s
     0     0    0.00000    0  175          -    0.00000     -      -    0s
     0     0    0.00000    0  172          -    0.00000     -      -    0s
     0     2    0.00000    0  171          -    0.00000     -      -    0s

Cutting planes:
  Clique: 5
  Zero half: 3

Explored 164 nodes (18135 simplex iterations) in 1.38 seconds
Thread count was 1 (of 16 available processors)

Model objective exceeds cutoff
Best objective -, best bound -, gap -


current bounds on the number of colors: 4 -- 9

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:39:17 2012

Optimize a model with 2004 rows, 789 columns and 6246 nonzeros
Presolve time: 0.01s
Presolved: 2004 rows, 789 columns, 6246 nonzeros
Variable types: 0 continuous, 789 integer (789 binary)

Root relaxation: objective 0.000000e+00, 180 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

*    0     0               0       0.0000000    0.00000   0.0%     -    0s

Explored 0 nodes (428 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%


current bounds on the number of colors: 4 -- 6

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:39:17 2012

Optimize a model with 1683 rows, 711 columns and 5205 nonzeros
Presolve time: 0.00s
Presolved: 1683 rows, 711 columns, 5205 nonzeros
Variable types: 0 continuous, 711 integer (711 binary)

Root relaxation: objective 0.000000e+00, 174 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

*    0     0               0       0.0000000    0.00000   0.0%     -    0s

Explored 0 nodes (913 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%


optimal solution found: number of colors: 5