
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:00:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5371.43.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/grafo5371.43.lp
Reading time = 0.31 seconds
: 183991 rows, 2792 columns, 554584 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 183991 rows, 2792 columns and 554584 nonzeros
Model fingerprint: 0x43e33053
Variable types: 54 continuous, 2738 integer (2738 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]
Found heuristic solution: objective 2.0000000
Presolve removed 60066 rows and 33 columns
Presolve time: 1.86s
Presolved: 123925 rows, 2759 columns, 374781 nonzeros
Variable types: 0 continuous, 2759 integer (2705 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2759 rows, 126684 columns, 377540 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12678    7.4213200e+01   0.000000e+00   1.576473e+06      5s
   27470    5.7951507e+01   0.000000e+00   1.687547e+05     10s
   41433    5.6928605e+01   0.000000e+00   3.475311e+04     15s
   55335    5.6916686e+01   0.000000e+00   9.125840e+03     20s
   69054    5.6909399e+01   0.000000e+00   1.198426e+04     25s
   82649    5.6904192e+01   0.000000e+00   6.063119e+04     30s
   95852    5.6900980e+01   0.000000e+00   2.027792e+03     35s
  109267    5.6898996e+01   0.000000e+00   2.128625e+03     40s
  123342    5.6898188e+01   0.000000e+00   1.242486e+02     45s
  126596    5.7000000e+01   0.000000e+00   0.000000e+00     46s
  126596    5.7000000e+01   0.000000e+00   0.000000e+00     46s

Root relaxation: objective 5.700000e+01, 126596 iterations, 44.35 seconds (31.20 work units)

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

     0     0   57.00000    0 1815   11.00000   57.00000   418%     -   50s

Explored 1 nodes (127481 simplex iterations) in 50.09 seconds (36.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 2 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.700000000000e+01, gap 418.1818%

Wrote result file './lp_solutions/grafo5371.43.sol'

