current bounds on the number of colors: 0 -- 164

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:07 2012

Optimize a model with 11726 rows, 13589 columns and 48134 nonzeros
Presolve removed 24 rows and 1968 columns
Presolve time: 0.12s
Presolved: 11702 rows, 11621 columns, 46166 nonzeros
Variable types: 0 continuous, 11621 integer (11621 binary)

Root relaxation: objective 0.000000e+00, 246 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 (246 simplex iterations) in 0.13 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 -- 82

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:08 2012

Optimize a model with 5945 rows, 6865 columns and 24067 nonzeros
Presolve removed 24 rows and 984 columns
Presolve time: 0.05s
Presolved: 5921 rows, 5881 columns, 23083 nonzeros
Variable types: 0 continuous, 5881 integer (5881 binary)

Root relaxation: objective 0.000000e+00, 245 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 (245 simplex iterations) in 0.06 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 -- 41

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:08 2012

Optimize a model with 2984 rows, 3421 columns and 11740 nonzeros
Presolve removed 24 rows and 480 columns
Presolve time: 0.02s
Presolved: 2960 rows, 2941 columns, 11260 nonzeros
Variable types: 0 continuous, 2941 integer (2941 binary)

Root relaxation: objective 0.000000e+00, 245 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 (245 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 -- 20

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:08 2012

Optimize a model with 1574 rows, 1781 columns and 5870 nonzeros
Presolve removed 24 rows and 240 columns
Presolve time: 0.01s
Presolved: 1550 rows, 1541 columns, 5630 nonzeros
Variable types: 0 continuous, 1541 integer (1541 binary)

Root relaxation: objective 0.000000e+00, 246 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 (352 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: 0 -- 10

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:08 2012

Optimize a model with 869 rows, 961 columns and 2935 nonzeros
Presolve removed 24 rows and 120 columns
Presolve time: 0.00s
Presolved: 845 rows, 841 columns, 2815 nonzeros
Variable types: 0 continuous, 841 integer (841 binary)

Root relaxation: objective 0.000000e+00, 234 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 (329 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: 0 -- 5

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:08 2012

Optimize a model with 446 rows, 469 columns and 1174 nonzeros
Presolve removed 172 rows and 200 columns
Presolve time: 0.00s
Presolved: 274 rows, 269 columns, 822 nonzeros
Variable types: 0 continuous, 269 integer (269 binary)

Root relaxation: objective 0.000000e+00, 140 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  110          -    0.00000     -      -    0s

Explored 0 nodes (400 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Model objective exceeds cutoff
Best objective -, best bound 1.000000000000e+00, gap -


current bounds on the number of colors: 2 -- 5

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:08 2012

Optimize a model with 587 rows, 633 columns and 1761 nonzeros
Presolve removed 24 rows and 72 columns
Presolve time: 0.00s
Presolved: 563 rows, 561 columns, 1689 nonzeros
Variable types: 0 continuous, 561 integer (561 binary)

Root relaxation: objective 0.000000e+00, 230 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 (230 simplex iterations) in 0.00 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: 3