current bounds on the number of colors: 0 -- 32
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:29 2012
Optimize a model with 528 rows, 543 columns and 2000 nonzeros
Presolve removed 2 rows and 32 columns
Presolve time: 0.00s
Presolved: 526 rows, 511 columns, 1968 nonzeros
Variable types: 0 continuous, 511 integer (511 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 -- 16
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:29 2012
Optimize a model with 280 rows, 287 columns and 1000 nonzeros
Presolve removed 2 rows and 16 columns
Presolve time: 0.00s
Presolved: 278 rows, 271 columns, 984 nonzeros
Variable types: 0 continuous, 271 integer (271 binary)
Root relaxation: objective 0.000000e+00, 52 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 (52 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 Fri Dec 14 18:19:29 2012
Optimize a model with 156 rows, 159 columns and 500 nonzeros
Presolve removed 2 rows and 8 columns
Presolve time: 0.00s
Presolved: 154 rows, 151 columns, 492 nonzeros
Variable types: 0 continuous, 151 integer (151 binary)
Root relaxation: objective 0.000000e+00, 45 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 (45 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 Fri Dec 14 18:19:29 2012
Optimize a model with 94 rows, 95 columns and 250 nonzeros
Presolve removed 32 rows and 34 columns
Presolve time: 0.00s
Presolved: 62 rows, 61 columns, 186 nonzeros
Variable types: 0 continuous, 61 integer (61 binary)
Root relaxation: objective 0.000000e+00, 30 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 26 - 0.00000 - - 0s
Explored 0 nodes (87 simplex iterations) in 0.00 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 18:19:29 2012
Optimize a model with 125 rows, 127 columns and 375 nonzeros
Presolve removed 2 rows and 6 columns
Presolve time: 0.00s
Presolved: 123 rows, 121 columns, 369 nonzeros
Variable types: 0 continuous, 121 integer (121 binary)
Root relaxation: objective 0.000000e+00, 48 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 (48 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: 3