current bounds on the number of colors: 0 -- 132 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:40 2012 Optimize a model with 5676 rows, 8796 columns and 25344 nonzeros Presolve removed 36 rows and 2376 columns Presolve time: 0.07s Presolved: 5640 rows, 6420 columns, 22968 nonzeros Variable types: 0 continuous, 6420 integer (6420 binary) Root relaxation: objective 0.000000e+00, 166 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 (166 simplex iterations) in 0.08 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 -- 66 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:40 2012 Optimize a model with 2904 rows, 4440 columns and 12672 nonzeros Presolve removed 36 rows and 1188 columns Presolve time: 0.02s Presolved: 2868 rows, 3252 columns, 11484 nonzeros Variable types: 0 continuous, 3252 integer (3252 binary) Root relaxation: objective 0.000000e+00, 165 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 (165 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 -- 33 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:40 2012 Optimize a model with 1476 rows, 2196 columns and 6144 nonzeros Presolve removed 36 rows and 576 columns Presolve time: 0.01s Presolved: 1440 rows, 1620 columns, 5568 nonzeros Variable types: 0 continuous, 1620 integer (1620 binary) Root relaxation: objective 0.000000e+00, 166 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 (166 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 -- 16 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:40 2012 Optimize a model with 804 rows, 1140 columns and 3072 nonzeros Presolve removed 36 rows and 288 columns Presolve time: 0.00s Presolved: 768 rows, 852 columns, 2784 nonzeros Variable types: 0 continuous, 852 integer (852 binary) Root relaxation: objective 0.000000e+00, 161 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 (161 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 -- 8 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:41 2012 Optimize a model with 468 rows, 612 columns and 1536 nonzeros Presolve removed 36 rows and 144 columns Presolve time: 0.00s Presolved: 432 rows, 468 columns, 1392 nonzeros Variable types: 0 continuous, 468 integer (468 binary) Root relaxation: objective 0.000000e+00, 141 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 (141 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 -- 4 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:41 2012 Optimize a model with 300 rows, 348 columns and 768 nonzeros Presolve removed 142 rows and 183 columns Presolve time: 0.00s Presolved: 158 rows, 165 columns, 474 nonzeros Variable types: 0 continuous, 165 integer (165 binary) Root relaxation: objective 0.000000e+00, 76 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 (76 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 -- 2 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:17:41 2012 Optimize a model with 216 rows, 216 columns and 384 nonzeros Presolve removed 216 rows and 216 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 - optimal solution found: number of colors: 2