current bounds on the number of colors: 0 -- 199 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:44 2012 Optimize a model with 22375 rows, 19925 columns and 86229 nonzeros Presolve removed 12 rows and 1188 columns Presolve time: 0.13s Presolved: 22363 rows, 18737 columns, 85041 nonzeros Variable types: 0 continuous, 18737 integer (18737 binary) Root relaxation: objective 0.000000e+00, 336 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 (336 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 -- 99 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:44 2012 Optimize a model with 11175 rows, 9975 columns and 42679 nonzeros Presolve removed 12 rows and 588 columns Presolve time: 0.10s Presolved: 11163 rows, 9387 columns, 42091 nonzeros Variable types: 0 continuous, 9387 integer (9387 binary) Root relaxation: objective 0.000000e+00, 337 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 (337 simplex iterations) in 0.11 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 -- 49 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:45 2012 Optimize a model with 5575 rows, 5000 columns and 20904 nonzeros Presolve removed 12 rows and 288 columns Presolve time: 0.03s Presolved: 5563 rows, 4712 columns, 20616 nonzeros Variable types: 0 continuous, 4712 integer (4712 binary) Root relaxation: objective 0.000000e+00, 342 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 (342 simplex iterations) in 0.04 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 16:29:45 2012 Optimize a model with 2887 rows, 2612 columns and 10452 nonzeros Presolve removed 12 rows and 144 columns Presolve time: 0.01s Presolved: 2875 rows, 2468 columns, 10308 nonzeros Variable types: 0 continuous, 2468 integer (2468 binary) Root relaxation: objective 0.000000e+00, 343 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 (505 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:45 2012 Optimize a model with 1543 rows, 1418 columns and 5226 nonzeros Presolve removed 12 rows and 72 columns Presolve time: 0.01s Presolved: 1531 rows, 1346 columns, 5154 nonzeros Variable types: 0 continuous, 1346 integer (1346 binary) Root relaxation: objective 0.000000e+00, 340 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 (340 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 16:29:45 2012 Optimize a model with 871 rows, 821 columns and 2613 nonzeros Presolve removed 12 rows and 36 columns Presolve time: 0.00s Presolved: 859 rows, 785 columns, 2577 nonzeros Variable types: 0 continuous, 785 integer (785 binary) Root relaxation: objective 0.000000e+00, 317 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 (429 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 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:45 2012 Optimize a model with 423 rows, 423 columns and 871 nonzeros Presolve removed 423 rows and 423 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 16:29:45 2012 Optimize a model with 647 rows, 622 columns and 1742 nonzeros Presolve removed 205 rows and 220 columns Presolve time: 0.00s Presolved: 442 rows, 402 columns, 1326 nonzeros Variable types: 0 continuous, 402 integer (402 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 0 178 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (677 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