
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:12:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7406.41.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/grafo7406.41.lp
Reading time = 0.09 seconds
: 57302 rows, 1864 columns, 173201 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 57302 rows, 1864 columns and 173201 nonzeros
Model fingerprint: 0xa481ba75
Variable types: 40 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 3.0000000
Presolve removed 9635 rows and 29 columns
Presolve time: 0.37s
Presolved: 47667 rows, 1835 columns, 144658 nonzeros
Variable types: 0 continuous, 1835 integer (1795 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 27127 rows, 22375 columns, 103578 nonzeros


Root relaxation: objective 3.900000e+01, 2416 iterations, 0.75 seconds (0.68 work units)

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

     0     0   39.00000    0  396   10.00000   39.00000   290%     -    3s
H    0     0                      12.0000000   39.00000   225%     -    4s
H    0     0                      14.0000000   39.00000   179%     -    7s
     0     0   39.00000    0  610   14.00000   39.00000   179%     -    7s
     0     0   39.00000    0  535   14.00000   39.00000   179%     -    8s
     0     0   39.00000    0  469   14.00000   39.00000   179%     -   20s
     0     0   39.00000    0  499   14.00000   39.00000   179%     -   22s
H    0     0                      15.0000000   39.00000   160%     -   37s
     0     0   39.00000    0  449   15.00000   39.00000   160%     -   37s
     0     0   39.00000    0  427   15.00000   39.00000   160%     -   37s
     0     0   39.00000    0  387   15.00000   39.00000   160%     -   43s
     0     0   39.00000    0  453   15.00000   39.00000   160%     -   44s
     0     0   39.00000    0  554   15.00000   39.00000   160%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 11
  Clique: 3
  MIR: 164
  Zero half: 72
  RLT: 58
  Relax-and-lift: 2

Explored 1 nodes (67871 simplex iterations) in 50.03 seconds (48.72 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 12 ... 3

Time limit reached
Best objective 1.500000000000e+01, best bound 3.900000000000e+01, gap 160.0000%

Wrote result file './lp_solutions/grafo7406.41.sol'

