
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:10:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5477.42.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/grafo5477.42.lp
Reading time = 0.13 seconds
: 83747 rows, 2068 columns, 252785 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 83747 rows, 2068 columns and 252785 nonzeros
Model fingerprint: 0xc4467f82
Variable types: 42 continuous, 2026 integer (2026 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 22637 rows and 20 columns
Presolve time: 0.55s
Presolved: 61110 rows, 2048 columns, 185349 nonzeros
Variable types: 0 continuous, 2048 integer (2006 binary)
Root relaxation presolved: 2045 rows, 63155 columns, 187397 nonzeros


Root relaxation: objective 3.900000e+01, 26417 iterations, 4.15 seconds (3.70 work units)
Total elapsed time = 9.67s (DegenMoves)
Total elapsed time = 15.38s (DegenMoves)

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

     0     0   39.00000    0  386          -   39.00000      -     -   18s
H    0     0                      10.0000000   39.00000   290%     -   18s
H    0     0                      11.0000000   39.00000   255%     -   18s
H    0     0                      13.0000000   39.00000   200%     -   19s
H    0     0                      14.0000000   39.00000   179%     -   19s
     0     0   39.00000    0  604   14.00000   39.00000   179%     -   24s
     0     0   39.00000    0  581   14.00000   39.00000   179%     -   25s
     0     0   39.00000    0  535   14.00000   39.00000   179%     -   37s
     0     0   39.00000    0  581   14.00000   39.00000   179%     -   39s
     0     0   39.00000    0  648   14.00000   39.00000   179%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 22
  Clique: 9
  MIR: 94
  StrongCG: 2
  GUB cover: 5
  Zero half: 131
  RLT: 71

Explored 1 nodes (74454 simplex iterations) in 50.07 seconds (49.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 11 10 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.900000000000e+01, gap 178.5714%

Wrote result file './lp_solutions/grafo5477.42.sol'

