
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:28:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7200.42.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/grafo7200.42.lp
Reading time = 0.35 seconds
: 220814 rows, 2702 columns, 664915 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 220814 rows, 2702 columns and 664915 nonzeros
Model fingerprint: 0x22218b6c
Variable types: 51 continuous, 2651 integer (2651 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 88013 rows and 4 columns
Presolve time: 1.31s
Presolved: 132801 rows, 2698 columns, 401374 nonzeros
Variable types: 0 continuous, 2698 integer (2647 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2682 rows, 135483 columns, 404072 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18563    7.0998331e+01   0.000000e+00   8.001113e+04      5s
   38868    6.0853231e+01   0.000000e+00   4.756404e+04     10s
   60709    6.0809318e+01   0.000000e+00   6.159847e+04     15s
   82549    6.0796602e+01   0.000000e+00   3.882096e+03     20s
  104950    6.0794443e+01   0.000000e+00   9.627435e-01     25s
  105404    6.1000000e+01   0.000000e+00   0.000000e+00     25s
  105404    6.1000000e+01   0.000000e+00   0.000000e+00     25s
  105404    6.1000000e+01   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 6.100000e+01, 105404 iterations, 23.63 seconds (17.67 work units)

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

     0     0   61.00000    0 1569   11.00000   61.00000   455%     -   50s

Explored 1 nodes (119338 simplex iterations) in 50.04 seconds (45.17 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 11 

Time limit reached
Best objective 1.100000000000e+01, best bound 6.100000000000e+01, gap 454.5455%

Wrote result file './lp_solutions/grafo7200.42.sol'

