
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:15:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3744.50.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/grafo3744.50.lp
Reading time = 0.76 seconds
: 375561 rows, 4081 columns, 1130846 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 375561 rows, 4081 columns and 1130846 nonzeros
Model fingerprint: 0x123db039
Variable types: 67 continuous, 4014 integer (4014 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, 7e+01]
Found heuristic solution: objective 1.0000000
Presolve removed 130435 rows and 31 columns
Presolve time: 3.44s
Presolved: 245126 rows, 4050 columns, 740077 nonzeros
Variable types: 0 continuous, 4050 integer (3983 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 4041 rows, 249167 columns, 744127 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
     943    3.8524288e+02   0.000000e+00   1.863278e+06      5s
   18118    1.3476784e+02   0.000000e+00   1.664664e+06     11s
   25592    1.1730395e+02   0.000000e+00   1.297443e+06     15s
   35761    9.4909169e+01   0.000000e+00   4.198038e+05     21s
   43067    9.2845961e+01   0.000000e+00   4.154627e+05     25s
   51893    8.3795637e+01   0.000000e+00   2.747562e+05     30s
   60731    7.6747146e+01   0.000000e+00   5.472637e+05     35s
   69831    7.2702624e+01   0.000000e+00   9.139912e+05     40s
   78320    7.2660652e+01   0.000000e+00   2.384570e+06     45s

Root relaxation: time limit, 87326 iterations, 46.05 seconds (27.02 work units)

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

     0     0          -    0        11.00000  415.00000  3673%     -   50s

Explored 1 nodes (87326 simplex iterations) in 50.04 seconds (30.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 1 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.150000000000e+02, gap 3672.7273%

Wrote result file './lp_solutions/grafo3744.50.sol'

