
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:39:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7105.48.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/grafo7105.48.lp
Reading time = 0.12 seconds
: 78496 rows, 2530 columns, 237386 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 78496 rows, 2530 columns and 237386 nonzeros
Model fingerprint: 0xac503b9b
Variable types: 48 continuous, 2482 integer (2482 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 6236 rows and 41 columns
Presolve time: 0.56s
Presolved: 72260 rows, 2489 columns, 219060 nonzeros
Variable types: 0 continuous, 2489 integer (2441 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2489 rows, 74749 columns, 221549 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24772    4.1945811e+01   0.000000e+00   9.287904e+02      5s
   33153    4.2000000e+01   0.000000e+00   0.000000e+00      7s
   33153    4.2000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.200000e+01, 33153 iterations, 6.03 seconds (5.03 work units)
Total elapsed time = 17.03s (DegenMoves)
Total elapsed time = 22.17s (DegenMoves)

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

     0     0   42.00000    0  618   11.00000   42.00000   282%     -   22s
     0     0   42.00000    0  984   11.00000   42.00000   282%     -   37s
     0     0   42.00000    0  929   11.00000   42.00000   282%     -   40s
     0     0          -    0        11.00000   42.00000   282%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 25
  Cover: 8
  Clique: 1
  MIR: 139
  GUB cover: 1
  Zero half: 22
  RLT: 41
  BQP: 1

Explored 1 nodes (65911 simplex iterations) in 50.07 seconds (45.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 11 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.200000000000e+01, gap 281.8182%

Wrote result file './lp_solutions/grafo7105.48.sol'

