
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:09:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11378.36.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/grafo11378.36.lp
Reading time = 0.12 seconds
: 71054 rows, 1744 columns, 214587 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 71054 rows, 1744 columns and 214587 nonzeros
Model fingerprint: 0x7f3e6b48
Variable types: 41 continuous, 1703 integer (1703 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]
Presolve removed 19952 rows and 18 columns
Presolve time: 0.52s
Presolved: 51102 rows, 1726 columns, 154993 nonzeros
Variable types: 0 continuous, 1726 integer (1685 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1726 rows, 52828 columns, 156719 nonzeros


Root relaxation: objective 3.900000e+01, 1421 iterations, 0.28 seconds (0.27 work units)

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

     0     0   39.00000    0  374    7.00000   39.00000   457%     -    2s
H    0     0                       9.0000000   39.00000   333%     -    2s
     0     0   39.00000    0  571    9.00000   39.00000   333%     -    8s
H    0     0                      11.0000000   39.00000   255%     -    8s
     0     0   39.00000    0  529   11.00000   39.00000   255%     -    8s
     0     0   39.00000    0  469   11.00000   39.00000   255%     -   20s
H    0     0                      12.0000000   39.00000   225%     -   20s
     0     0   39.00000    0  400   12.00000   39.00000   225%     -   21s
     0     0   39.00000    0  474   12.00000   39.00000   225%     -   30s
     0     0   39.00000    0  492   12.00000   39.00000   225%     -   30s
H    0     0                      13.0000000   39.00000   200%     -   36s
H    0     0                      14.0000000   39.00000   179%     -   36s
     0     0   39.00000    0  360   14.00000   39.00000   179%     -   36s
H    0     0                      15.0000000   39.00000   160%     -   36s
     0     0   39.00000    0  366   15.00000   39.00000   160%     -   36s
     0     0   39.00000    0  398   15.00000   39.00000   160%     -   44s
     0     0   39.00000    0  369   15.00000   39.00000   160%     -   44s
     0     0   39.00000    0  473   15.00000   39.00000   160%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 33
  Clique: 22
  MIR: 150
  StrongCG: 4
  Zero half: 23
  RLT: 59
  BQP: 2

Explored 1 nodes (47248 simplex iterations) in 50.06 seconds (38.81 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 15 14 13 ... 7

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

Wrote result file './lp_solutions/grafo11378.36.sol'

