current bounds on the number of colors: 0 -- 217 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:24 2012 Optimize a model with 27649 rows, 23690 columns and 105732 nonzeros Presolve removed 15 rows and 1620 columns Presolve time: 0.14s Presolved: 27634 rows, 22070 columns, 104112 nonzeros Variable types: 0 continuous, 22070 integer (22070 binary) Root relaxation: objective 0.000000e+00, 370 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 (569 simplex iterations) in 0.19 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 -- 108 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:24 2012 Optimize a model with 13933 rows, 11972 columns and 52866 nonzeros Presolve removed 15 rows and 810 columns Presolve time: 0.13s Presolved: 13918 rows, 11162 columns, 52056 nonzeros Variable types: 0 continuous, 11162 integer (11162 binary) Root relaxation: objective 0.000000e+00, 369 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 (544 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 -- 54 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:25 2012 Optimize a model with 7075 rows, 6113 columns and 26433 nonzeros Presolve removed 15 rows and 405 columns Presolve time: 0.04s Presolved: 7060 rows, 5708 columns, 26028 nonzeros Variable types: 0 continuous, 5708 integer (5708 binary) Root relaxation: objective 0.000000e+00, 373 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 (565 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 -- 27 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:25 2012 Optimize a model with 3519 rows, 3075 columns and 12727 nonzeros Presolve removed 15 rows and 195 columns Presolve time: 0.02s Presolved: 3504 rows, 2880 columns, 12532 nonzeros Variable types: 0 continuous, 2880 integer (2880 binary) Root relaxation: objective 0.000000e+00, 398 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 (398 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 16:35:25 2012 Optimize a model with 1741 rows, 1556 columns and 5874 nonzeros Presolve removed 15 rows and 90 columns Presolve time: 0.01s Presolved: 1726 rows, 1466 columns, 5784 nonzeros Variable types: 0 continuous, 1466 integer (1466 binary) Root relaxation: objective 0.000000e+00, 364 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 (364 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 16:35:25 2012 Optimize a model with 979 rows, 905 columns and 2937 nonzeros Presolve removed 15 rows and 45 columns Presolve time: 0.00s Presolved: 964 rows, 860 columns, 2892 nonzeros Variable types: 0 continuous, 860 integer (860 binary) Root relaxation: objective 0.000000e+00, 381 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 (530 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 16:35:25 2012 Optimize a model with 471 rows, 471 columns and 979 nonzeros Presolve removed 471 rows and 471 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 16:35:25 2012 Optimize a model with 725 rows, 688 columns and 1958 nonzeros Presolve removed 223 rows and 241 columns Presolve time: 0.00s Presolved: 502 rows, 447 columns, 1506 nonzeros Variable types: 0 continuous, 447 integer (447 binary) Root relaxation: objective 0.000000e+00, 236 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 0 196 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (765 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