
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:56:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4071.43.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/grafo4071.43.lp
Reading time = 0.38 seconds
: 239651 rows, 2994 columns, 721852 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 239651 rows, 2994 columns and 721852 nonzeros
Model fingerprint: 0x68deaf69
Variable types: 56 continuous, 2938 integer (2938 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, 6e+01]
Presolve removed 90063 rows and 37 columns
Presolve time: 1.58s
Presolved: 149588 rows, 2957 columns, 452070 nonzeros
Variable types: 0 continuous, 2957 integer (2901 binary)
Root relaxation presolved: 2937 rows, 152525 columns, 455027 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14573    9.1465080e+01   0.000000e+00   6.296814e+05      5s
   32728    6.2886403e+01   0.000000e+00   4.267222e+05     10s
   51744    6.2761520e+01   0.000000e+00   2.530197e+05     15s
   69985    6.2731412e+01   0.000000e+00   1.390423e+04     20s
   88855    6.2718044e+01   0.000000e+00   9.613298e+03     25s
  107725    6.2712989e+01   0.000000e+00   1.067013e+04     30s
  115082    6.3000000e+01   0.000000e+00   0.000000e+00     32s
  115082    6.3000000e+01   0.000000e+00   0.000000e+00     32s
  115082    6.3000000e+01   0.000000e+00   0.000000e+00     32s

Root relaxation: objective 6.300000e+01, 115082 iterations, 30.24 seconds (23.71 work units)

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

     0     0   63.00000    0 1721          -   63.00000      -     -   50s
H    0     0                       6.0000000   63.00000   950%     -   50s

Explored 1 nodes (123496 simplex iterations) in 50.08 seconds (42.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 6.300000000000e+01, gap 950.0000%

Wrote result file './lp_solutions/grafo4071.43.sol'

