current bounds on the number of colors: 0 -- 68

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:48 2012

Optimize a model with 986 rows, 2339 columns and 5066 nonzeros
Presolve removed 30 rows and 1020 columns
Presolve time: 0.01s
Presolved: 956 rows, 1319 columns, 4046 nonzeros
Variable types: 0 continuous, 1319 integer (1319 binary)

Root relaxation: objective 0.000000e+00, 64 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 (64 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 -- 34

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:48 2012

Optimize a model with 527 rows, 1183 columns and 2533 nonzeros
Presolve removed 30 rows and 510 columns
Presolve time: 0.00s
Presolved: 497 rows, 673 columns, 2023 nonzeros
Variable types: 0 continuous, 673 integer (673 binary)

Root relaxation: objective 0.000000e+00, 64 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 (64 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 -- 17

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:48 2012

Optimize a model with 284 rows, 571 columns and 1192 nonzeros
Presolve removed 30 rows and 240 columns
Presolve time: 0.00s
Presolved: 254 rows, 331 columns, 952 nonzeros
Variable types: 0 continuous, 331 integer (331 binary)

Root relaxation: objective 0.000000e+00, 60 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 (60 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 -- 8

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:48 2012

Optimize a model with 176 rows, 299 columns and 596 nonzeros
Presolve removed 30 rows and 120 columns
Presolve time: 0.00s
Presolved: 146 rows, 179 columns, 476 nonzeros
Variable types: 0 continuous, 179 integer (179 binary)

Root relaxation: objective 0.000000e+00, 54 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 (54 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 -- 4

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:48 2012

Optimize a model with 122 rows, 163 columns and 298 nonzeros
Presolve removed 74 rows and 107 columns
Presolve time: 0.00s
Presolved: 48 rows, 56 columns, 144 nonzeros
Variable types: 0 continuous, 56 integer (56 binary)

Root relaxation: objective 0.000000e+00, 22 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 (22 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 -- 2

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:48 2012

Optimize a model with 95 rows, 95 columns and 149 nonzeros
Presolve removed 95 rows and 95 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 -


optimal solution found: number of colors: 2