
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:21:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7761.44.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/grafo7761.44.lp
Reading time = 0.20 seconds
: 122248 rows, 2511 columns, 368844 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 122248 rows, 2511 columns and 368844 nonzeros
Model fingerprint: 0xc7871471
Variable types: 49 continuous, 2462 integer (2462 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 32935 rows and 15 columns
Presolve time: 0.79s
Presolved: 89313 rows, 2496 columns, 270496 nonzeros
Variable types: 0 continuous, 2496 integer (2447 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2487 rows, 91800 columns, 272992 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23632    4.5935353e+01   0.000000e+00   6.095771e+03      5s
   45724    4.5925895e+01   0.000000e+00   5.280802e+01     10s
   47384    4.6000000e+01   0.000000e+00   0.000000e+00     11s
   47384    4.6000000e+01   0.000000e+00   0.000000e+00     11s
   47384    4.6000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.600000e+01, 47384 iterations, 9.66 seconds (8.16 work units)
Total elapsed time = 27.03s (DegenMoves)
Total elapsed time = 30.93s (DegenMoves)

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

     0     0   46.00000    0  558   10.00000   46.00000   360%     -   32s
     0     0   46.00000    0  843   10.00000   46.00000   360%     -   45s
     0     0   46.00000    0  814   10.00000   46.00000   360%     -   46s

Cutting planes:
  Lift-and-project: 27
  Cover: 25
  Clique: 21
  MIR: 154
  StrongCG: 2
  GUB cover: 1
  Zero half: 21
  RLT: 28
  BQP: 2

Explored 1 nodes (74523 simplex iterations) in 50.10 seconds (52.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.600000000000e+01, gap 360.0000%

Wrote result file './lp_solutions/grafo7761.44.sol'

