
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 18:35:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2075.32.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/grafo2075.32.lp
Reading time = 0.09 seconds
: 58303 rows, 1316 columns, 175828 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 58303 rows, 1316 columns and 175828 nonzeros
Model fingerprint: 0xc9fb11f5
Variable types: 34 continuous, 1282 integer (1282 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 20673 rows and 12 columns
Presolve time: 0.39s
Presolved: 37630 rows, 1304 columns, 113980 nonzeros
Variable types: 0 continuous, 1304 integer (1270 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 26686 rows, 12248 columns, 92092 nonzeros


Root relaxation: objective 3.700000e+01, 1191 iterations, 0.42 seconds (0.40 work units)

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

     0     0   37.00000    0  358    6.00000   37.00000   517%     -    2s
H    0     0                       7.0000000   37.00000   429%     -    2s
H    0     0                       9.0000000   37.00000   311%     -    2s
     0     0   37.00000    0  592    9.00000   37.00000   311%     -    7s
     0     0   37.00000    0  591    9.00000   37.00000   311%     -    7s
     0     0   37.00000    0  431    9.00000   37.00000   311%     -   15s
     0     0   37.00000    0  453    9.00000   37.00000   311%     -   16s
     0     0   37.00000    0  457    9.00000   37.00000   311%     -   26s
     0     0   37.00000    0  425    9.00000   37.00000   311%     -   26s
H    0     0                      10.0000000   37.00000   270%     -   43s
H    0     0                      11.0000000   37.00000   236%     -   43s
H    0     0                      12.0000000   37.00000   208%     -   43s
     0     0   37.00000    0  412   12.00000   37.00000   208%     -   43s
     0     0   37.00000    0  417   12.00000   37.00000   208%     -   44s
     0     0   37.00000    0  293   12.00000   37.00000   208%     -   48s
     0     0   37.00000    0  376   12.00000   37.00000   208%     -   49s
     0     0          -    0        12.00000   37.00000   208%     -   50s

Cutting planes:
  Cover: 38
  Clique: 20
  MIR: 140
  StrongCG: 4
  GUB cover: 1
  Zero half: 44
  RLT: 80

Explored 1 nodes (62396 simplex iterations) in 50.04 seconds (48.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 12 11 10 ... -0

Time limit reached
Best objective 1.200000000000e+01, best bound 3.700000000000e+01, gap 208.3333%

Wrote result file './lp_solutions/grafo2075.32.sol'

