
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 18:31:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1908.32.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/grafo1908.32.lp
Reading time = 0.09 seconds
: 54108 rows, 1270 columns, 163176 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 54108 rows, 1270 columns and 163176 nonzeros
Model fingerprint: 0xf0322424
Variable types: 33 continuous, 1237 integer (1237 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 1.0000000
Presolve removed 18783 rows and 12 columns
Presolve time: 0.37s
Presolved: 35325 rows, 1258 columns, 106995 nonzeros
Variable types: 0 continuous, 1258 integer (1225 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 24909 rows, 11674 columns, 86163 nonzeros


Root relaxation: objective 3.400000e+01, 2075 iterations, 0.88 seconds (0.91 work units)

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

     0     0   34.00000    0  430    8.00000   34.00000   325%     -    2s
H    0     0                       9.0000000   34.00000   278%     -    2s
     0     0   34.00000    0  526    9.00000   34.00000   278%     -    6s
     0     0   34.00000    0  502    9.00000   34.00000   278%     -    6s
     0     0   34.00000    0  421    9.00000   34.00000   278%     -   16s
     0     0   34.00000    0  413    9.00000   34.00000   278%     -   17s
     0     0   34.00000    0  305    9.00000   34.00000   278%     -   22s
     0     0   34.00000    0  367    9.00000   34.00000   278%     -   23s
     0     0   34.00000    0  415    9.00000   34.00000   278%     -   30s
     0     0   34.00000    0  372    9.00000   34.00000   278%     -   30s
     0     0   34.00000    0  376    9.00000   34.00000   278%     -   38s
     0     0   34.00000    0  312    9.00000   34.00000   278%     -   39s
     0     0   34.00000    0  350    9.00000   34.00000   278%     -   43s
     0     0   34.00000    0  361    9.00000   34.00000   278%     -   43s
     0     0   34.00000    0  358    9.00000   34.00000   278%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 2
  Cover: 23
  Clique: 34
  MIR: 115
  StrongCG: 2
  GUB cover: 1
  Zero half: 18
  RLT: 61
  BQP: 4

Explored 1 nodes (66548 simplex iterations) in 50.02 seconds (50.24 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.400000000000e+01, gap 277.7778%

Wrote result file './lp_solutions/grafo1908.32.sol'

