
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:25:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6392.40.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/grafo6392.40.lp
Reading time = 0.21 seconds
: 128528 rows, 2510 columns, 387830 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 128528 rows, 2510 columns and 387830 nonzeros
Model fingerprint: 0xaf649e8f
Variable types: 50 continuous, 2460 integer (2460 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 39270 rows and 16 columns
Presolve time: 0.88s
Presolved: 89258 rows, 2494 columns, 270664 nonzeros
Variable types: 0 continuous, 2494 integer (2444 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2482 rows, 91740 columns, 273158 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22870    5.6985629e+01   0.000000e+00   1.590197e+05      5s
   46948    5.6970790e+01   0.000000e+00   2.997721e+03     10s
   64587    5.7000000e+01   0.000000e+00   0.000000e+00     14s
   64587    5.7000000e+01   0.000000e+00   0.000000e+00     14s
   64587    5.7000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 5.700000e+01, 64587 iterations, 12.94 seconds (10.51 work units)
Total elapsed time = 32.44s (DegenMoves)
Total elapsed time = 35.50s (DegenMoves)

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

     0     0   57.00000    0  721    9.00000   57.00000   533%     -   36s
H    0     0                      11.0000000   57.00000   418%     -   36s
     0     0          -    0        11.00000   57.00000   418%     -   50s

Cutting planes:
  Gomory: 37
  Cover: 32
  Clique: 17
  MIR: 110
  GUB cover: 5
  Zero half: 65
  RLT: 53
  BQP: 3

Explored 1 nodes (86571 simplex iterations) in 50.02 seconds (47.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 9 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.700000000000e+01, gap 418.1818%

Wrote result file './lp_solutions/grafo6392.40.sol'

