current bounds on the number of colors: 0 -- 95 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:08 2012 Optimize a model with 21433 rows, 4919 columns and 68479 nonzeros Presolve time: 0.12s Presolved: 21433 rows, 4919 columns, 68479 nonzeros Variable types: 0 continuous, 4919 integer (4919 binary) Root relaxation: objective 0.000000e+00, 271 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 (473 simplex iterations) in 0.16 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 -- 47 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:09 2012 Optimize a model with 10537 rows, 2639 columns and 33511 nonzeros Presolve time: 0.04s Presolved: 10537 rows, 2639 columns, 33511 nonzeros Variable types: 0 continuous, 2639 integer (2639 binary) Root relaxation: objective 0.000000e+00, 211 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 (382 simplex iterations) in 0.06 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 -- 23 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:09 2012 Optimize a model with 5089 rows, 1499 columns and 16027 nonzeros Presolve time: 0.02s Presolved: 5089 rows, 1499 columns, 16027 nonzeros Variable types: 0 continuous, 1499 integer (1499 binary) Root relaxation: objective 0.000000e+00, 204 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 (377 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 -- 11 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:09 2012 Optimize a model with 2365 rows, 929 columns and 7285 nonzeros Presolve time: 0.01s Presolved: 2365 rows, 929 columns, 7285 nonzeros Variable types: 0 continuous, 929 integer (929 binary) Root relaxation: objective 0.000000e+00, 203 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 0 117 - 0.00000 - - 0s H 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (1584 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 -- 5 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:09 2012 Optimize a model with 1003 rows, 644 columns and 2914 nonzeros Presolve removed 95 rows and 95 columns Presolve time: 0.00s Presolved: 908 rows, 549 columns, 2724 nonzeros Variable types: 0 continuous, 549 integer (549 binary) Root relaxation: objective 0.000000e+00, 98 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 95 - 0.00000 - - 0s Explored 0 nodes (404 simplex iterations) in 0.01 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 -- 5 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:09 2012 Optimize a model with 1457 rows, 739 columns and 4371 nonzeros Presolve time: 0.00s Presolved: 1457 rows, 739 columns, 4371 nonzeros Variable types: 0 continuous, 739 integer (739 binary) Root relaxation: objective 0.000000e+00, 225 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 0 190 - 0.00000 - - 0s 0 0 0.00000 0 162 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (2233 simplex iterations) in 0.17 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 -- 5 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:48:09 2012 Optimize a model with 1911 rows, 834 columns and 5828 nonzeros Presolve time: 0.00s Presolved: 1911 rows, 834 columns, 5828 nonzeros Variable types: 0 continuous, 834 integer (834 binary) Root relaxation: objective 0.000000e+00, 216 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 98 - 0.00000 - - 0s 0 0 0.00000 0 155 - 0.00000 - - 0s 0 0 0.00000 0 239 - 0.00000 - - 0s 0 0 0.00000 0 250 - 0.00000 - - 0s 0 0 0.00000 0 250 - 0.00000 - - 0s 0 0 0.00000 0 231 - 0.00000 - - 0s 0 0 0.00000 0 245 - 0.00000 - - 1s 0 0 0.00000 0 242 - 0.00000 - - 1s 0 0 0.00000 0 243 - 0.00000 - - 1s 0 0 0.00000 0 243 - 0.00000 - - 1s 0 2 0.00000 0 243 - 0.00000 - - 1s Cutting planes: Clique: 4 Zero half: 21 Explored 45 nodes (22514 simplex iterations) in 2.08 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound -, gap - optimal solution found: number of colors: 5