
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:15:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5614.42.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/grafo5614.42.lp
Reading time = 0.35 seconds
: 182589 rows, 2706 columns, 550315 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 182589 rows, 2706 columns and 550315 nonzeros
Model fingerprint: 0xe3901839
Variable types: 53 continuous, 2653 integer (2653 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 67310 rows and 25 columns
Presolve time: 1.65s
Presolved: 115279 rows, 2681 columns, 348952 nonzeros
Variable types: 0 continuous, 2681 integer (2628 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2681 rows, 117960 columns, 351633 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12797    6.1168274e+01   0.000000e+00   4.291717e+05      5s
   29157    5.5715716e+01   0.000000e+00   2.511653e+04     10s
   44837    5.5692762e+01   0.000000e+00   6.770961e+03     15s
   60027    5.5685155e+01   0.000000e+00   1.368551e+03     20s
   74727    5.5683122e+01   0.000000e+00   6.003276e+02     25s
   78301    5.6000000e+01   0.000000e+00   0.000000e+00     26s
   78301    5.6000000e+01   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 5.600000e+01, 78301 iterations, 24.46 seconds (15.25 work units)

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

     0     0   56.00000    0 1546    9.00000   56.00000   522%     -   50s

Explored 1 nodes (88454 simplex iterations) in 50.05 seconds (36.49 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.600000000000e+01, gap 522.2222%

Wrote result file './lp_solutions/grafo5614.42.sol'

