current bounds on the number of colors: 0 -- 96 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:38 2012 Optimize a model with 22848 rows, 5082 columns and 72864 nonzeros Presolve time: 0.13s Presolved: 22848 rows, 5082 columns, 72864 nonzeros Variable types: 0 continuous, 5082 integer (5082 binary) Root relaxation: objective 0.000000e+00, 329 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 (582 simplex iterations) in 0.18 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 -- 48 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:38 2012 Optimize a model with 11472 rows, 2778 columns and 36432 nonzeros Presolve time: 0.05s Presolved: 11472 rows, 2778 columns, 36432 nonzeros Variable types: 0 continuous, 2778 integer (2778 binary) Root relaxation: objective 0.000000e+00, 243 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 (449 simplex iterations) in 0.07 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 -- 24 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:39 2012 Optimize a model with 5784 rows, 1626 columns and 18216 nonzeros Presolve time: 0.02s Presolved: 5784 rows, 1626 columns, 18216 nonzeros Variable types: 0 continuous, 1626 integer (1626 binary) Root relaxation: objective 0.000000e+00, 200 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 (379 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 -- 12 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:39 2012 Optimize a model with 2940 rows, 1050 columns and 9108 nonzeros Presolve time: 0.01s Presolved: 2940 rows, 1050 columns, 9108 nonzeros Variable types: 0 continuous, 1050 integer (1050 binary) Root relaxation: objective 0.000000e+00, 219 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 (477 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 -- 6 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:39 2012 Optimize a model with 1518 rows, 762 columns and 4554 nonzeros Presolve time: 0.00s Presolved: 1518 rows, 762 columns, 4554 nonzeros Variable types: 0 continuous, 762 integer (762 binary) Root relaxation: objective 0.000000e+00, 215 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 0 192 - 0.00000 - - 0s 0 0 0.00000 0 176 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (2813 simplex iterations) in 0.23 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: 3 -- 6 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:39 2012 Optimize a model with 1992 rows, 858 columns and 6072 nonzeros Presolve time: 0.00s Presolved: 1992 rows, 858 columns, 6072 nonzeros Variable types: 0 continuous, 858 integer (858 binary) Root relaxation: objective 0.000000e+00, 215 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 0 180 - 0.00000 - - 0s 0 0 0.00000 0 204 - 0.00000 - - 0s 0 0 0.00000 0 276 - 0.00000 - - 0s 0 0 0.00000 0 265 - 0.00000 - - 0s 0 0 0.00000 0 258 - 0.00000 - - 0s 0 0 0.00000 0 246 - 0.00000 - - 0s 0 0 0.00000 0 265 - 0.00000 - - 0s 0 0 0.00000 0 245 - 0.00000 - - 0s 0 0 0.00000 0 262 - 0.00000 - - 1s 0 0 0.00000 0 265 - 0.00000 - - 1s 0 0 0.00000 0 265 - 0.00000 - - 1s 0 2 0.00000 0 265 - 0.00000 - - 1s Cutting planes: Clique: 7 Zero half: 27 Explored 177 nodes (32457 simplex iterations) in 2.86 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: 4 -- 6 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:42 2012 Optimize a model with 2466 rows, 954 columns and 7590 nonzeros Presolve time: 0.01s Presolved: 2466 rows, 954 columns, 7590 nonzeros Variable types: 0 continuous, 954 integer (954 binary) Root relaxation: objective 0.000000e+00, 205 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 0 178 - 0.00000 - - 0s 0 0 0.00000 0 168 - 0.00000 - - 0s * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (2750 simplex iterations) in 0.18 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: 5