
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 19:39:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2015.35.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/grafo2015.35.lp
Reading time = 0.15 seconds
: 79908 rows, 1812 columns, 241266 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 79908 rows, 1812 columns and 241266 nonzeros
Model fingerprint: 0xcc0c27ca
Variable types: 43 continuous, 1769 integer (1769 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 23684 rows and 25 columns
Presolve time: 0.74s
Presolved: 56224 rows, 1787 columns, 170548 nonzeros
Variable types: 0 continuous, 1787 integer (1744 binary)
Root relaxation presolved: 1787 rows, 58011 columns, 172335 nonzeros


Root relaxation: objective 4.200000e+01, 2953 iterations, 1.29 seconds (1.20 work units)
Total elapsed time = 12.32s (DegenMoves)
Total elapsed time = 16.98s (DegenMoves)

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

     0     0   42.00000    0  554          -   42.00000      -     -   17s
H    0     0                       5.0000000   42.00000   740%     -   17s
H    0     0                       7.0000000   42.00000   500%     -   18s
H    0     0                       8.0000000   42.00000   425%     -   32s
     0     0   42.00000    0  737    8.00000   42.00000   425%     -   32s
     0     0   42.00000    0  723    8.00000   42.00000   425%     -   33s
     0     0          -    0         8.00000   42.00000   425%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 32
  Cover: 16
  Clique: 11
  MIR: 93
  StrongCG: 2
  Zero half: 6
  RLT: 72
  BQP: 1

Explored 1 nodes (30659 simplex iterations) in 50.06 seconds (37.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 7 5 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.200000000000e+01, gap 425.0000%

Wrote result file './lp_solutions/grafo2015.35.sol'

