
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:16:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6199.42.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/grafo6199.42.lp
Reading time = 0.18 seconds
: 111244 rows, 2206 columns, 335475 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 111244 rows, 2206 columns and 335475 nonzeros
Model fingerprint: 0xe3047a3a
Variable types: 44 continuous, 2162 integer (2162 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 34804 rows and 20 columns
Presolve time: 0.83s
Presolved: 76440 rows, 2186 columns, 231562 nonzeros
Variable types: 0 continuous, 2186 integer (2142 binary)
Root relaxation presolved: 2177 rows, 78617 columns, 233748 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24809    3.8791769e+01   0.000000e+00   4.101761e+03      5s
   32907    3.9000000e+01   0.000000e+00   0.000000e+00      6s
   32907    3.9000000e+01   0.000000e+00   0.000000e+00      7s
   32907    3.9000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 3.900000e+01, 32907 iterations, 5.52 seconds (4.59 work units)
Total elapsed time = 14.42s (DegenMoves)
Total elapsed time = 15.75s (DegenMoves)

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

     0     0   39.00000    0  593          -   39.00000      -     -   16s
H    0     0                       9.0000000   39.00000   333%     -   20s
     0     0   39.00000    0  730    9.00000   39.00000   333%     -   31s
     0     0   39.00000    0  719    9.00000   39.00000   333%     -   32s
H    0     0                      11.0000000   39.00000   255%     -   37s
     0     0   39.00000    0  791   11.00000   39.00000   255%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 30
  Cover: 21
  Clique: 31
  MIR: 134
  StrongCG: 1
  GUB cover: 2
  Zero half: 51
  RLT: 67
  BQP: 2
  PSD: 1

Explored 1 nodes (61231 simplex iterations) in 50.08 seconds (46.37 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 3.900000000000e+01, gap 254.5455%

Wrote result file './lp_solutions/grafo6199.42.sol'

