
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:21:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7128.48.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/grafo7128.48.lp
Reading time = 0.23 seconds
: 133240 rows, 2715 columns, 401870 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 133240 rows, 2715 columns and 401870 nonzeros
Model fingerprint: 0x3d7c87fc
Variable types: 49 continuous, 2666 integer (2666 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 34271 rows and 10 columns
Presolve time: 0.92s
Presolved: 98969 rows, 2705 columns, 299483 nonzeros
Variable types: 0 continuous, 2705 integer (2656 binary)
Root relaxation presolved: 2692 rows, 101661 columns, 302188 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17878    4.7727973e+01   0.000000e+00   9.605809e+04      5s
   38145    4.7662234e+01   0.000000e+00   1.421049e+04     10s
   56205    4.7653585e+01   0.000000e+00   5.345776e+02     15s
   62770    4.8000000e+01   0.000000e+00   0.000000e+00     17s
   62770    4.8000000e+01   0.000000e+00   0.000000e+00     17s
   62770    4.8000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 4.800000e+01, 62770 iterations, 15.75 seconds (11.32 work units)
Total elapsed time = 36.38s (DegenMoves)

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

     0     0   48.00000    0  695          -   48.00000      -     -   38s
H    0     0                       6.0000000   48.00000   700%     -   39s
H    0     0                       7.0000000   48.00000   586%     -   39s
     0     0          -    0         7.00000   48.00000   586%     -   50s

Cutting planes:
  Gomory: 37
  Cover: 46
  Clique: 26
  MIR: 155
  GUB cover: 1
  Zero half: 54
  RLT: 46
  BQP: 5

Explored 1 nodes (84304 simplex iterations) in 50.03 seconds (42.17 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 6 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.800000000000e+01, gap 585.7143%

Wrote result file './lp_solutions/grafo7128.48.sol'

