current bounds on the number of colors: 0 -- 52
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:25 2012
Optimize a model with 3250 rows, 1475 columns and 10946 nonzeros
Presolve time: 0.02s
Presolved: 3250 rows, 1475 columns, 10946 nonzeros
Variable types: 0 continuous, 1475 integer (1475 binary)
Root relaxation: objective 0.000000e+00, 130 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 (213 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 -- 26
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:25 2012
Optimize a model with 1651 rows, 799 columns and 5473 nonzeros
Presolve time: 0.01s
Presolved: 1651 rows, 799 columns, 5473 nonzeros
Variable types: 0 continuous, 799 integer (799 binary)
Root relaxation: objective 0.000000e+00, 113 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 (201 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 Thu Dec 13 19:36:25 2012
Optimize a model with 790 rows, 435 columns and 2526 nonzeros
Presolve time: 0.00s
Presolved: 790 rows, 435 columns, 2526 nonzeros
Variable types: 0 continuous, 435 integer (435 binary)
Root relaxation: objective 0.000000e+00, 116 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 (193 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 Thu Dec 13 19:36:25 2012
Optimize a model with 421 rows, 279 columns and 1263 nonzeros
Presolve time: 0.00s
Presolved: 421 rows, 279 columns, 1263 nonzeros
Variable types: 0 continuous, 279 integer (279 binary)
Root relaxation: objective 0.000000e+00, 120 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 90 - 0.00000 - - 0s
0 0 0.00000 0 82 - 0.00000 - - 0s
0 0 0.00000 0 86 - 0.00000 - - 0s
0 0 0.00000 0 109 - 0.00000 - - 0s
0 0 0.00000 0 98 - 0.00000 - - 0s
0 0 0.00000 0 114 - 0.00000 - - 0s
0 0 0.00000 0 103 - 0.00000 - - 0s
0 0 0.00000 0 111 - 0.00000 - - 0s
0 0 0.00000 0 111 - 0.00000 - - 0s
0 2 0.00000 0 58 - 0.00000 - - 0s
Cutting planes:
Zero half: 6
Explored 3 nodes (3055 simplex iterations) in 0.11 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: 3 -- 6
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:26 2012
Optimize a model with 544 rows, 331 columns and 1684 nonzeros
Presolve time: 0.00s
Presolved: 544 rows, 331 columns, 1684 nonzeros
Variable types: 0 continuous, 331 integer (331 binary)
Root relaxation: objective 0.000000e+00, 146 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 (248 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: 4