
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:44:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11295.37.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/grafo11295.37.lp
Reading time = 0.14 seconds
: 88062 rows, 1866 columns, 265743 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 88062 rows, 1866 columns and 265743 nonzeros
Model fingerprint: 0xdc32d0cb
Variable types: 42 continuous, 1824 integer (1824 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 7.0000000
Presolve removed 27514 rows and 16 columns
Presolve time: 0.60s
Presolved: 60548 rows, 1850 columns, 183576 nonzeros
Variable types: 0 continuous, 1850 integer (1808 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1844 rows, 62392 columns, 185426 nonzeros


Root relaxation: objective 4.100000e+01, 1395 iterations, 0.33 seconds (0.30 work units)

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

     0     0   41.00000    0  291    9.00000   41.00000   356%     -    2s
H    0     0                      12.0000000   41.00000   242%     -    2s
H    0     0                      15.0000000   41.00000   173%     -    2s
     0     0   41.00000    0  665   15.00000   41.00000   173%     -    8s
     0     0   41.00000    0  629   15.00000   41.00000   173%     -    9s
H    0     0                      16.0000000   41.00000   156%     -   41s
     0     0   41.00000    0  486   16.00000   41.00000   156%     -   42s
     0     0   41.00000    0  474   16.00000   41.00000   156%     -   43s
H    0     0                      17.0000000   41.00000   141%     -   44s
     0     0   41.00000    0  596   17.00000   41.00000   141%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 1
  Cover: 27
  Clique: 15
  MIR: 155
  StrongCG: 2
  GUB cover: 3
  Zero half: 54
  RLT: 56
  BQP: 4

Explored 1 nodes (36675 simplex iterations) in 50.05 seconds (47.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 17 16 15 ... 7

Time limit reached
Best objective 1.700000000000e+01, best bound 4.100000000000e+01, gap 141.1765%

Wrote result file './lp_solutions/grafo11295.37.sol'

