current bounds on the number of colors: 0 -- 104

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

Optimize a model with 3380 rows, 5471 columns and 15236 nonzeros
Presolve removed 31 rows and 1612 columns
Presolve time: 0.04s
Presolved: 3349 rows, 3859 columns, 13624 nonzeros
Variable types: 0 continuous, 3859 integer (3859 binary)

Root relaxation: objective 0.000000e+00, 119 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 (119 simplex iterations) in 0.04 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 -- 52

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

Optimize a model with 1742 rows, 2767 columns and 7618 nonzeros
Presolve removed 31 rows and 806 columns
Presolve time: 0.01s
Presolved: 1711 rows, 1961 columns, 6812 nonzeros
Variable types: 0 continuous, 1961 integer (1961 binary)

Root relaxation: objective 0.000000e+00, 119 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 (119 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 -- 26

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

Optimize a model with 923 rows, 1415 columns and 3809 nonzeros
Presolve removed 31 rows and 403 columns
Presolve time: 0.00s
Presolved: 892 rows, 1012 columns, 3406 nonzeros
Variable types: 0 continuous, 1012 integer (1012 binary)

Root relaxation: objective 0.000000e+00, 125 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 (125 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 -- 13

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

Optimize a model with 482 rows, 687 columns and 1758 nonzeros
Presolve removed 31 rows and 186 columns
Presolve time: 0.00s
Presolved: 451 rows, 501 columns, 1572 nonzeros
Variable types: 0 continuous, 501 integer (501 binary)

Root relaxation: objective 0.000000e+00, 118 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 (118 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%


current bounds on the number of colors: 0 -- 6

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

Optimize a model with 293 rows, 375 columns and 879 nonzeros
Presolve removed 31 rows and 93 columns
Presolve time: 0.00s
Presolved: 262 rows, 282 columns, 786 nonzeros
Variable types: 0 continuous, 282 integer (282 binary)

Root relaxation: objective 0.000000e+00, 104 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 (104 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%


current bounds on the number of colors: 0 -- 3

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

Optimize a model with 167 rows, 167 columns and 293 nonzeros
Presolve removed 167 rows and 167 columns
Presolve time: 0.00s

Explored 0 nodes (0 simplex iterations) in 0.00 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: 1 -- 3

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

Optimize a model with 230 rows, 271 columns and 586 nonzeros
Presolve removed 114 rows and 150 columns
Presolve time: 0.00s
Presolved: 116 rows, 121 columns, 348 nonzeros
Variable types: 0 continuous, 121 integer (121 binary)

Root relaxation: objective 0.000000e+00, 61 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   41          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (164 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 -


optimal solution found: number of colors: 3