current bounds on the number of colors: 0 -- 209 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:46 2012 Optimize a model with 23193 rows, 21957 columns and 90688 nonzeros Presolve removed 25 rows and 2600 columns Presolve time: 0.14s Presolved: 23168 rows, 19357 columns, 88088 nonzeros Variable types: 0 continuous, 19357 integer (19357 binary) Root relaxation: objective 0.000000e+00, 328 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 (328 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 -- 104 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:46 2012 Optimize a model with 11701 rows, 11089 columns and 45344 nonzeros Presolve removed 25 rows and 1300 columns Presolve time: 0.11s Presolved: 11676 rows, 9789 columns, 44044 nonzeros Variable types: 0 continuous, 9789 integer (9789 binary) Root relaxation: objective 0.000000e+00, 330 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 (330 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 -- 52 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:46 2012 Optimize a model with 5955 rows, 5655 columns and 22672 nonzeros Presolve removed 25 rows and 650 columns Presolve time: 0.04s Presolved: 5930 rows, 5005 columns, 22022 nonzeros Variable types: 0 continuous, 5005 integer (5005 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 0.04 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 -- 26 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:47 2012 Optimize a model with 3082 rows, 2938 columns and 11336 nonzeros Presolve removed 25 rows and 325 columns Presolve time: 0.01s Presolved: 3057 rows, 2613 columns, 11011 nonzeros Variable types: 0 continuous, 2613 integer (2613 binary) Root relaxation: objective 0.000000e+00, 327 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 (327 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:47 2012 Optimize a model with 1535 rows, 1475 columns and 5232 nonzeros Presolve removed 25 rows and 150 columns Presolve time: 0.01s Presolved: 1510 rows, 1325 columns, 5082 nonzeros Variable types: 0 continuous, 1325 integer (1325 binary) Root relaxation: objective 0.000000e+00, 349 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 (521 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 16:32:47 2012 Optimize a model with 872 rows, 848 columns and 2616 nonzeros Presolve removed 25 rows and 75 columns Presolve time: 0.00s Presolved: 847 rows, 773 columns, 2541 nonzeros Variable types: 0 continuous, 773 integer (773 binary) Root relaxation: objective 0.000000e+00, 357 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 (654 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 16:32:47 2012 Optimize a model with 430 rows, 430 columns and 872 nonzeros Presolve removed 430 rows and 430 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 16:32:47 2012 Optimize a model with 651 rows, 639 columns and 1744 nonzeros Presolve removed 215 rows and 243 columns Presolve time: 0.00s Presolved: 436 rows, 396 columns, 1308 nonzeros Variable types: 0 continuous, 396 integer (396 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 0.00000 0 169 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (644 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