current bounds on the number of colors: 0 -- 195

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:35 2012

Optimize a model with 18722 rows, 19106 columns and 74496 nonzeros
Presolve removed 31 rows and 3007 columns
Presolve time: 0.12s
Presolved: 18691 rows, 16099 columns, 71489 nonzeros
Variable types: 0 continuous, 16099 integer (16099 binary)

Root relaxation: objective 0.000000e+00, 295 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 (295 simplex iterations) in 0.14 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 -- 97

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:35 2012

Optimize a model with 9363 rows, 9551 columns and 36864 nonzeros
Presolve removed 31 rows and 1488 columns
Presolve time: 0.08s
Presolved: 9332 rows, 8063 columns, 35376 nonzeros
Variable types: 0 continuous, 8063 integer (8063 binary)

Root relaxation: objective 0.000000e+00, 296 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 (296 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 -- 48

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:36 2012

Optimize a model with 4779 rows, 4871 columns and 18432 nonzeros
Presolve removed 31 rows and 744 columns
Presolve time: 0.03s
Presolved: 4748 rows, 4127 columns, 17688 nonzeros
Variable types: 0 continuous, 4127 integer (4127 binary)

Root relaxation: objective 0.000000e+00, 297 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 (297 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 -- 24

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:36 2012

Optimize a model with 2487 rows, 2531 columns and 9216 nonzeros
Presolve removed 31 rows and 372 columns
Presolve time: 0.01s
Presolved: 2456 rows, 2159 columns, 8844 nonzeros
Variable types: 0 continuous, 2159 integer (2159 binary)

Root relaxation: objective 0.000000e+00, 300 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 (300 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 -- 12

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:36 2012

Optimize a model with 1341 rows, 1361 columns and 4608 nonzeros
Presolve removed 31 rows and 186 columns
Presolve time: 0.00s
Presolved: 1310 rows, 1175 columns, 4422 nonzeros
Variable types: 0 continuous, 1175 integer (1175 binary)

Root relaxation: objective 0.000000e+00, 296 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 (296 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 -- 6

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:36 2012

Optimize a model with 768 rows, 776 columns and 2304 nonzeros
Presolve removed 31 rows and 93 columns
Presolve time: 0.00s
Presolved: 737 rows, 683 columns, 2211 nonzeros
Variable types: 0 continuous, 683 integer (683 binary)

Root relaxation: objective 0.000000e+00, 301 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 (301 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 16:28:36 2012

Optimize a model with 386 rows, 386 columns and 768 nonzeros
Presolve removed 386 rows and 386 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 16:28:36 2012

Optimize a model with 577 rows, 581 columns and 1536 nonzeros
Presolve removed 203 rows and 238 columns
Presolve time: 0.00s
Presolved: 374 rows, 343 columns, 1122 nonzeros
Variable types: 0 continuous, 343 integer (343 binary)

Root relaxation: objective 0.000000e+00, 170 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  153          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (574 simplex iterations) in 0.01 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