current bounds on the number of colors: 0 -- 73
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:57 2012
Optimize a model with 4285 rows, 2745 columns and 15264 nonzeros
Presolve removed 3 rows and 108 columns
Presolve time: 0.03s
Presolved: 4282 rows, 2637 columns, 15156 nonzeros
Variable types: 0 continuous, 2637 integer (2637 binary)
Root relaxation: objective 0.000000e+00, 147 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 (147 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 -- 36
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:57 2012
Optimize a model with 2179 rows, 1431 columns and 7632 nonzeros
Presolve removed 3 rows and 54 columns
Presolve time: 0.01s
Presolved: 2176 rows, 1377 columns, 7578 nonzeros
Variable types: 0 continuous, 1377 integer (1377 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 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (142 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 -- 18
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:57 2012
Optimize a model with 1126 rows, 774 columns and 3816 nonzeros
Presolve removed 3 rows and 27 columns
Presolve time: 0.00s
Presolved: 1123 rows, 747 columns, 3789 nonzeros
Variable types: 0 continuous, 747 integer (747 binary)
Root relaxation: objective 0.000000e+00, 149 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 (245 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 -- 9
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:57 2012
Optimize a model with 541 rows, 409 columns and 1696 nonzeros
Presolve removed 3 rows and 12 columns
Presolve time: 0.00s
Presolved: 538 rows, 397 columns, 1684 nonzeros
Variable types: 0 continuous, 397 integer (397 binary)
Root relaxation: objective 0.000000e+00, 140 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 (199 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 18:20:57 2012
Optimize a model with 307 rows, 263 columns and 848 nonzeros
Presolve removed 73 rows and 76 columns
Presolve time: 0.00s
Presolved: 234 rows, 187 columns, 702 nonzeros
Variable types: 0 continuous, 187 integer (187 binary)
Root relaxation: objective 0.000000e+00, 77 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 70 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (271 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 18:20:57 2012
Optimize a model with 424 rows, 336 columns and 1272 nonzeros
Presolve removed 3 rows and 9 columns
Presolve time: 0.00s
Presolved: 421 rows, 327 columns, 1263 nonzeros
Variable types: 0 continuous, 327 integer (327 binary)
Root relaxation: objective 0.000000e+00, 177 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 (344 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%
optimal solution found: number of colors: 3