
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:43:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6204.45.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/grafo6204.45.lp
Reading time = 0.32 seconds
: 198028 rows, 3093 columns, 597027 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 198028 rows, 3093 columns and 597027 nonzeros
Model fingerprint: 0x18a46794
Variable types: 57 continuous, 3036 integer (3036 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 61372 rows and 28 columns
Presolve time: 1.55s
Presolved: 136656 rows, 3065 columns, 413451 nonzeros
Variable types: 0 continuous, 3065 integer (3008 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3056 rows, 139712 columns, 416516 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15519    7.1661313e+01   0.000000e+00   1.795665e+05      5s
   33223    6.2598167e+01   0.000000e+00   6.390443e+04     10s
   50323    6.2580669e+01   0.000000e+00   1.036130e+04     15s
   66283    6.2575486e+01   0.000000e+00   2.070041e+03     20s
   79089    6.3000000e+01   0.000000e+00   0.000000e+00     24s
   79089    6.3000000e+01   0.000000e+00   0.000000e+00     24s
   79089    6.3000000e+01   0.000000e+00   0.000000e+00     24s

Root relaxation: objective 6.300000e+01, 79089 iterations, 22.19 seconds (17.62 work units)

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

     0     0   63.00000    0 1726    8.00000   63.00000   687%     -   50s

Explored 1 nodes (93097 simplex iterations) in 50.04 seconds (44.99 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 6.300000000000e+01, gap 687.5000%

Wrote result file './lp_solutions/grafo6204.45.sol'

