current bounds on the number of colors: 0 -- 199 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:54 2012 Optimize a model with 22375 rows, 19925 columns and 86229 nonzeros Presolve removed 20 rows and 1980 columns Presolve time: 0.13s Presolved: 22355 rows, 17945 columns, 84249 nonzeros Variable types: 0 continuous, 17945 integer (17945 binary) Root relaxation: objective 0.000000e+00, 332 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 (496 simplex iterations) in 0.17 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 16:29:54 2012 Optimize a model with 11175 rows, 9975 columns and 42679 nonzeros Presolve removed 20 rows and 980 columns Presolve time: 0.10s Presolved: 11155 rows, 8995 columns, 41699 nonzeros Variable types: 0 continuous, 8995 integer (8995 binary) Root relaxation: objective 0.000000e+00, 331 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 (493 simplex iterations) in 0.12 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 16:29:54 2012 Optimize a model with 5575 rows, 5000 columns and 20904 nonzeros Presolve removed 20 rows and 480 columns Presolve time: 0.03s Presolved: 5555 rows, 4520 columns, 20424 nonzeros Variable types: 0 continuous, 4520 integer (4520 binary) Root relaxation: objective 0.000000e+00, 331 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 (504 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 16:29:54 2012 Optimize a model with 2887 rows, 2612 columns and 10452 nonzeros Presolve removed 20 rows and 240 columns Presolve time: 0.01s Presolved: 2867 rows, 2372 columns, 10212 nonzeros Variable types: 0 continuous, 2372 integer (2372 binary) Root relaxation: objective 0.000000e+00, 329 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 (329 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 16:29:55 2012 Optimize a model with 1543 rows, 1418 columns and 5226 nonzeros Presolve removed 20 rows and 120 columns Presolve time: 0.01s Presolved: 1523 rows, 1298 columns, 5106 nonzeros Variable types: 0 continuous, 1298 integer (1298 binary) Root relaxation: objective 0.000000e+00, 328 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 (328 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 16:29:55 2012 Optimize a model with 871 rows, 821 columns and 2613 nonzeros Presolve removed 20 rows and 60 columns Presolve time: 0.00s Presolved: 851 rows, 761 columns, 2553 nonzeros Variable types: 0 continuous, 761 integer (761 binary) Root relaxation: objective 0.000000e+00, 319 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 (319 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 16:29:55 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 16:29:55 2012 Optimize a model with 647 rows, 622 columns and 1742 nonzeros Presolve removed 205 rows and 228 columns Presolve time: 0.00s Presolved: 442 rows, 394 columns, 1326 nonzeros Variable types: 0 continuous, 394 integer (394 binary) Root relaxation: objective 0.000000e+00, 199 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 0 173 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (626 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