
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:02:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3413.36.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/grafo3413.36.lp
Reading time = 0.76 seconds
: 475913 rows, 2406 columns, 1430013 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 475913 rows, 2406 columns and 1430013 nonzeros
Model fingerprint: 0x37fbb186
Variable types: 48 continuous, 2358 integer (2358 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 228028 rows and 9 columns
Presolve time: 3.43s
Presolved: 247885 rows, 2397 columns, 746377 nonzeros
Variable types: 0 continuous, 2397 integer (2349 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2387 rows, 250272 columns, 748774 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    3625    2.3542630e+02   0.000000e+00   1.138177e+06      5s
   36700    1.0299634e+02   0.000000e+00   1.819930e+05     10s
   56899    7.2992469e+01   0.000000e+00   5.078410e+05     15s
   79523    5.3922023e+01   0.000000e+00   2.057437e+05     20s
  102813    5.3870967e+01   0.000000e+00   1.881798e+04     25s
  126806    5.3853152e+01   0.000000e+00   2.769975e+04     30s
  151879    5.3845492e+01   0.000000e+00   1.215380e+03     35s
  168751    5.4000000e+01   0.000000e+00   0.000000e+00     39s
  168751    5.4000000e+01   0.000000e+00   0.000000e+00     39s
  168751    5.4000000e+01   0.000000e+00   0.000000e+00     39s

Root relaxation: objective 5.400000e+01, 168751 iterations, 34.59 seconds (24.64 work units)

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

     0     0   54.00000    0 1451    5.00000   54.00000   980%     -   50s

Explored 1 nodes (173138 simplex iterations) in 50.07 seconds (39.71 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 5.400000000000e+01, gap 980.0000%

Wrote result file './lp_solutions/grafo3413.36.sol'

