current bounds on the number of colors: 0 -- 62
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:38 2012
Optimize a model with 775 rows, 1945 columns and 4061 nonzeros
Presolve removed 28 rows and 868 columns
Presolve time: 0.01s
Presolved: 747 rows, 1077 columns, 3193 nonzeros
Variable types: 0 continuous, 1077 integer (1077 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 0.01 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 -- 31
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:38 2012
Optimize a model with 407 rows, 953 columns and 1965 nonzeros
Presolve removed 28 rows and 420 columns
Presolve time: 0.00s
Presolved: 379 rows, 533 columns, 1545 nonzeros
Variable types: 0 continuous, 533 integer (533 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 -- 15
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:38 2012
Optimize a model with 223 rows, 457 columns and 917 nonzeros
Presolve removed 28 rows and 196 columns
Presolve time: 0.00s
Presolved: 195 rows, 261 columns, 721 nonzeros
Variable types: 0 continuous, 261 integer (261 binary)
Root relaxation: objective 0.000000e+00, 53 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 (53 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 -- 7
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:38 2012
Optimize a model with 131 rows, 209 columns and 393 nonzeros
Presolve removed 28 rows and 84 columns
Presolve time: 0.00s
Presolved: 103 rows, 125 columns, 309 nonzeros
Variable types: 0 continuous, 125 integer (125 binary)
Root relaxation: objective 0.000000e+00, 46 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 (46 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 16:13:38 2012
Optimize a model with 85 rows, 85 columns and 131 nonzeros
Presolve removed 85 rows and 85 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 16:13:38 2012
Optimize a model with 108 rows, 147 columns and 262 nonzeros
Presolve removed 74 rows and 108 columns
Presolve time: 0.00s
Presolved: 34 rows, 39 columns, 102 nonzeros
Variable types: 0 continuous, 39 integer (39 binary)
Root relaxation: objective 0.000000e+00, 17 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 (17 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: 2