current bounds on the number of colors: 0 -- 192 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:27:57 2012 Optimize a model with 16896 rows, 18606 columns and 68544 nonzeros Presolve removed 39 rows and 3744 columns Presolve time: 0.13s Presolved: 16857 rows, 14862 columns, 64800 nonzeros Variable types: 0 continuous, 14862 integer (14862 binary) Root relaxation: objective 0.000000e+00, 280 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 (280 simplex iterations) in 0.15 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 -- 96 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:27:57 2012 Optimize a model with 8544 rows, 9390 columns and 34272 nonzeros Presolve removed 39 rows and 1872 columns Presolve time: 0.08s Presolved: 8505 rows, 7518 columns, 32400 nonzeros Variable types: 0 continuous, 7518 integer (7518 binary) Root relaxation: objective 0.000000e+00, 280 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 (280 simplex iterations) in 0.09 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 Sat Dec 15 16:27:57 2012 Optimize a model with 4368 rows, 4782 columns and 17136 nonzeros Presolve removed 39 rows and 936 columns Presolve time: 0.03s Presolved: 4329 rows, 3846 columns, 16200 nonzeros Variable types: 0 continuous, 3846 integer (3846 binary) Root relaxation: objective 0.000000e+00, 274 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 (274 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 -- 24 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:27:57 2012 Optimize a model with 2280 rows, 2478 columns and 8568 nonzeros Presolve removed 39 rows and 468 columns Presolve time: 0.01s Presolved: 2241 rows, 2010 columns, 8100 nonzeros Variable types: 0 continuous, 2010 integer (2010 binary) Root relaxation: objective 0.000000e+00, 268 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 (268 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:27:57 2012 Optimize a model with 1236 rows, 1326 columns and 4284 nonzeros Presolve removed 39 rows and 234 columns Presolve time: 0.00s Presolved: 1197 rows, 1092 columns, 4050 nonzeros Variable types: 0 continuous, 1092 integer (1092 binary) Root relaxation: objective 0.000000e+00, 259 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 (259 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 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:27:57 2012 Optimize a model with 714 rows, 750 columns and 2142 nonzeros Presolve removed 39 rows and 117 columns Presolve time: 0.00s Presolved: 675 rows, 633 columns, 2025 nonzeros Variable types: 0 continuous, 633 integer (633 binary) Root relaxation: objective 0.000000e+00, 239 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 (239 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 16:27:57 2012 Optimize a model with 366 rows, 366 columns and 714 nonzeros Presolve removed 366 rows and 366 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 16:27:57 2012 Optimize a model with 540 rows, 558 columns and 1428 nonzeros Presolve removed 198 rows and 240 columns Presolve time: 0.00s Presolved: 342 rows, 318 columns, 1026 nonzeros Variable types: 0 continuous, 318 integer (318 binary) Root relaxation: objective 0.000000e+00, 164 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 0 140 - 0.00000 - - 0s Explored 0 nodes (531 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 - optimal solution found: number of colors: 3