
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 16:05:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3028.24.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/grafo3028.24.lp
Reading time = 0.07 seconds
: 41973 rows, 1068 columns, 126759 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 41973 rows, 1068 columns and 126759 nonzeros
Model fingerprint: 0x201f241e
Variable types: 33 continuous, 1035 integer (1035 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 15663 rows and 15 columns
Presolve time: 0.29s
Presolved: 26310 rows, 1053 columns, 80022 nonzeros
Variable types: 0 continuous, 1053 integer (1020 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 18830 rows, 8533 columns, 65062 nonzeros


Root relaxation: objective 3.800000e+01, 1286 iterations, 0.38 seconds (0.39 work units)

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

     0     0   38.00000    0  365    6.00000   38.00000   533%     -    1s
H    0     0                       9.0000000   38.00000   322%     -    1s
     0     0   38.00000    0  626    9.00000   38.00000   322%     -    5s
     0     0   38.00000    0  617    9.00000   38.00000   322%     -    5s
H    0     0                      10.0000000   38.00000   280%     -    6s
     0     0   38.00000    0  387   10.00000   38.00000   280%     -   10s
     0     0   38.00000    0  376   10.00000   38.00000   280%     -   10s
     0     0   38.00000    0  445   10.00000   38.00000   280%     -   16s
     0     0   38.00000    0  446   10.00000   38.00000   280%     -   17s
     0     0   38.00000    0  394   10.00000   38.00000   280%     -   24s
     0     0   38.00000    0  360   10.00000   38.00000   280%     -   24s
     0     0   38.00000    0  413   10.00000   38.00000   280%     -   30s
     0     0   38.00000    0  395   10.00000   38.00000   280%     -   31s
H    0     0                      11.0000000   38.00000   245%     -   39s
     0     0   38.00000    0  386   11.00000   38.00000   245%     -   39s
     0     0   38.00000    0  351   11.00000   38.00000   245%     -   40s
     0     2   38.00000    0  351   11.00000   38.00000   245%     -   44s
     1     4   38.00000    1  313   11.00000   38.00000   245%  2646   45s
    42    49   37.50000   10  311   11.00000   38.00000   245%   567   50s

Cutting planes:
  Gomory: 1
  Cover: 7
  Clique: 15
  MIR: 203
  Zero half: 6
  RLT: 85
  BQP: 1

Explored 48 nodes (87970 simplex iterations) in 50.03 seconds (53.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 11 10 9 ... -0

Time limit reached
Best objective 1.100000000000e+01, best bound 3.800000000000e+01, gap 245.4545%

Wrote result file './lp_solutions/grafo3028.24.sol'

