
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:18:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6019.39.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/grafo6019.39.lp
Reading time = 0.11 seconds
: 66265 rows, 2000 columns, 200432 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 66265 rows, 2000 columns and 200432 nonzeros
Model fingerprint: 0x96610da9
Variable types: 44 continuous, 1956 integer (1956 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 2.0000000
Presolve removed 12492 rows and 28 columns
Presolve time: 0.46s
Presolved: 53773 rows, 1972 columns, 163456 nonzeros
Variable types: 0 continuous, 1972 integer (1928 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 1972 rows, 55745 columns, 165428 nonzeros


Root relaxation: objective 3.700000e+01, 1779 iterations, 0.30 seconds (0.28 work units)

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

     0     0   37.00000    0  459   11.00000   37.00000   236%     -    3s
H    0     0                      15.0000000   37.00000   147%     -    3s
     0     0   37.00000    0  653   15.00000   37.00000   147%     -   13s
     0     0   37.00000    0  616   15.00000   37.00000   147%     -   14s
     0     0   37.00000    0  422   15.00000   37.00000   147%     -   32s
     0     0   37.00000    0  565   15.00000   37.00000   147%     -   34s
     0     0   37.00000    0  498   15.00000   37.00000   147%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 27
  Clique: 5
  MIR: 158
  GUB cover: 2
  Zero half: 91
  RLT: 53

Explored 1 nodes (47243 simplex iterations) in 50.06 seconds (41.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 15 11 2 

Time limit reached
Best objective 1.500000000000e+01, best bound 3.700000000000e+01, gap 146.6667%

Wrote result file './lp_solutions/grafo6019.39.sol'

