
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:29:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7249.42.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/grafo7249.42.lp
Reading time = 0.34 seconds
: 170384 rows, 2710 columns, 513612 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 170384 rows, 2710 columns and 513612 nonzeros
Model fingerprint: 0xe22de585
Variable types: 53 continuous, 2657 integer (2657 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 55357 rows and 27 columns
Presolve time: 1.77s
Presolved: 115027 rows, 2683 columns, 347890 nonzeros
Variable types: 0 continuous, 2683 integer (2630 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2683 rows, 117710 columns, 350573 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13308    6.5988690e+01   0.000000e+00   6.610587e+06      5s
   29349    6.3764860e+01   0.000000e+00   1.889239e+05     10s
   45526    6.3727155e+01   0.000000e+00   1.417357e+04     15s
   61206    6.3717756e+01   0.000000e+00   3.465179e+03     20s
   73270    6.4000000e+01   0.000000e+00   0.000000e+00     24s
   73270    6.4000000e+01   0.000000e+00   0.000000e+00     24s

Root relaxation: objective 6.400000e+01, 73270 iterations, 22.10 seconds (13.36 work units)

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

     0     0   64.00000    0 1517    5.00000   64.00000  1180%     -   50s

Explored 1 nodes (84133 simplex iterations) in 50.06 seconds (35.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 6.400000000000e+01, gap 1180.0000%

Wrote result file './lp_solutions/grafo7249.42.sol'

