
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:55:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1024.20.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo1024.20.lp
Reading time = 0.01 seconds
: 3560 rows, 310 columns, 10716 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 3560 rows, 310 columns and 10716 nonzeros
Model fingerprint: 0x71e50517
Variable types: 12 continuous, 298 integer (298 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Found heuristic solution: objective -0.0000000
Presolve removed 562 rows and 12 columns
Presolve time: 0.06s
Presolved: 2998 rows, 298 columns, 9126 nonzeros
Variable types: 0 continuous, 298 integer (286 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 8.000000e+00, 147 iterations, 0.02 seconds (0.01 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    8.00000    0   59    3.00000    8.00000   167%     -    0s
H    0     0                       4.0000000    8.00000   100%     -    0s
     0     0    8.00000    0   82    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   38    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   38    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   46    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   46    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   45    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   44    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   63    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   60    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   43    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   41    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   37    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   28    4.00000    8.00000   100%     -    1s
     0     2    8.00000    0   28    4.00000    8.00000   100%     -    1s
H  166   134                       5.0000000    8.00000  60.0%  39.2    2s
H  220   134                       6.0000000    8.00000  33.3%  43.3    2s

Cutting planes:
  Gomory: 2
  Cover: 1
  MIR: 31
  Inf proof: 8
  Zero half: 11
  RLT: 13

Explored 368 nodes (14737 simplex iterations) in 2.49 seconds (0.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 6 5 4 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1024.20.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 01:00:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1024.20.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo1024.20.lp
Reading time = 0.01 seconds
: 3560 rows, 310 columns, 10716 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 3560 rows, 310 columns and 10716 nonzeros
Model fingerprint: 0x71e50517
Variable types: 12 continuous, 298 integer (298 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Found heuristic solution: objective -0.0000000
Presolve removed 562 rows and 12 columns
Presolve time: 0.07s
Presolved: 2998 rows, 298 columns, 9126 nonzeros
Variable types: 0 continuous, 298 integer (286 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 8.000000e+00, 147 iterations, 0.04 seconds (0.01 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    8.00000    0   59    3.00000    8.00000   167%     -    0s
H    0     0                       4.0000000    8.00000   100%     -    0s
     0     0    8.00000    0   82    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   38    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   38    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   46    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   46    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   45    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   44    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   63    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   60    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   43    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   41    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   37    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   28    4.00000    8.00000   100%     -    1s
     0     2    8.00000    0   28    4.00000    8.00000   100%     -    2s
H  166   134                       5.0000000    8.00000  60.0%  39.2    2s
H  220   134                       6.0000000    8.00000  33.3%  43.3    2s

Cutting planes:
  Gomory: 2
  Cover: 1
  MIR: 31
  Inf proof: 8
  Zero half: 11
  RLT: 13

Explored 368 nodes (14737 simplex iterations) in 2.72 seconds (0.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 6 5 4 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1024.20.sol'

