current bounds on the number of colors: 0 -- 133

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:35:56 2012

Optimize a model with 27589 rows, 9194 columns and 91146 nonzeros
Presolve time: 0.14s
Presolved: 27589 rows, 9194 columns, 91146 nonzeros
Variable types: 0 continuous, 9194 integer (9194 binary)

Root relaxation: objective 0.000000e+00, 405 iterations, 0.02 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 (656 simplex iterations) in 0.20 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 -- 66

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:35:57 2012

Optimize a model with 13861 rows, 4805 columns and 45573 nonzeros
Presolve time: 0.07s
Presolved: 13861 rows, 4805 columns, 45573 nonzeros
Variable types: 0 continuous, 4805 integer (4805 binary)

Root relaxation: objective 0.000000e+00, 327 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 (678 simplex iterations) in 0.10 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 -- 33

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:35:57 2012

Optimize a model with 6789 rows, 2544 columns and 22096 nonzeros
Presolve time: 0.02s
Presolved: 6789 rows, 2544 columns, 22096 nonzeros
Variable types: 0 continuous, 2544 integer (2544 binary)

Root relaxation: objective 0.000000e+00, 280 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 (486 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 -- 16

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:35:57 2012

Optimize a model with 3461 rows, 1480 columns and 11048 nonzeros
Presolve time: 0.01s
Presolved: 3461 rows, 1480 columns, 11048 nonzeros
Variable types: 0 continuous, 1480 integer (1480 binary)

Root relaxation: objective 0.000000e+00, 288 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 (502 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 -- 8

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:35:57 2012

Optimize a model with 1797 rows, 948 columns and 5524 nonzeros
Presolve time: 0.00s
Presolved: 1797 rows, 948 columns, 5524 nonzeros
Variable types: 0 continuous, 948 integer (948 binary)

Root relaxation: objective 0.000000e+00, 318 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  214          -    0.00000     -      -    0s
H    0     0                       0.0000000    0.00000   0.0%     -    0s

Explored 0 nodes (1308 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 -- 4

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:35:57 2012

Optimize a model with 965 rows, 682 columns and 2762 nonzeros
Presolve removed 133 rows and 133 columns
Presolve time: 0.00s
Presolved: 832 rows, 549 columns, 2496 nonzeros
Variable types: 0 continuous, 549 integer (549 binary)

Root relaxation: objective 0.000000e+00, 142 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  133          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (546 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 -


current bounds on the number of colors: 2 -- 4

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:35:57 2012

Optimize a model with 1381 rows, 815 columns and 4143 nonzeros
Presolve time: 0.00s
Presolved: 1381 rows, 815 columns, 4143 nonzeros
Variable types: 0 continuous, 815 integer (815 binary)

Root relaxation: objective 0.000000e+00, 304 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  246          -    0.00000     -      -    0s
     0     0    0.00000    0  254          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (2595 simplex iterations) in 0.15 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: 4