
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 06:35:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5977.35.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/grafo5977.35.lp
Reading time = 0.09 seconds
: 53578 rows, 1706 columns, 162122 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 53578 rows, 1706 columns and 162122 nonzeros
Model fingerprint: 0x0233e522
Variable types: 42 continuous, 1664 integer (1664 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 10596 rows and 39 columns
Presolve time: 0.37s
Presolved: 42982 rows, 1667 columns, 130695 nonzeros
Variable types: 0 continuous, 1667 integer (1625 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 24957 rows, 19692 columns, 94645 nonzeros


Root relaxation: objective 3.800000e+01, 2293 iterations, 0.92 seconds (0.85 work units)

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

     0     0   38.00000    0  443    9.00000   38.00000   322%     -    4s
H    0     0                      11.0000000   38.00000   245%     -    5s
     0     0   38.00000    0  687   11.00000   38.00000   245%     -   11s
H    0     0                      12.0000000   38.00000   217%     -   11s
     0     0   38.00000    0  710   12.00000   38.00000   217%     -   11s
     0     0   38.00000    0  562   12.00000   38.00000   217%     -   33s
     0     0   38.00000    0  540   12.00000   38.00000   217%     -   34s
     0     0   38.00000    0  606   12.00000   38.00000   217%     -   50s

Cutting planes:
  Cover: 26
  Clique: 8
  MIR: 155
  GUB cover: 14
  Zero half: 45
  RLT: 54

Explored 1 nodes (54200 simplex iterations) in 50.04 seconds (44.72 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 11 9 2 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.800000000000e+01, gap 216.6667%

Wrote result file './lp_solutions/grafo5977.35.sol'

