
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:49:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3913.43.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/grafo3913.43.lp
Reading time = 0.68 seconds
: 352374 rows, 3498 columns, 1060782 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 352374 rows, 3498 columns and 1060782 nonzeros
Model fingerprint: 0xfbe1d670
Variable types: 63 continuous, 3435 integer (3435 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 135628 rows and 22 columns
Presolve time: 3.29s
Presolved: 216746 rows, 3476 columns, 654306 nonzeros
Variable types: 0 continuous, 3476 integer (3413 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3476 rows, 220222 columns, 657782 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.1934400e+03   0.000000e+00   1.288510e+06      5s
   16991    1.5374110e+02   0.000000e+00   3.969612e+05     10s
   32223    1.1674242e+02   0.000000e+00   3.743445e+06     16s
   42991    9.9037604e+01   0.000000e+00   1.008992e+06     21s
   53200    9.6480663e+01   0.000000e+00   1.376383e+05     25s
   64247    8.1780133e+01   0.000000e+00   1.547642e+05     30s
   75276    8.1744593e+01   0.000000e+00   1.525305e+06     35s
   86212    8.1720395e+01   0.000000e+00   8.872067e+04     40s
   96301    8.1703876e+01   0.000000e+00   3.811563e+04     45s
  106382    8.1693359e+01   0.000000e+00   5.831223e+04     50s

Root relaxation: time limit, 106382 iterations, 46.03 seconds (27.53 work units)

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

     0     0          -    0         7.00000  415.00000  5829%     -   50s

Explored 1 nodes (106382 simplex iterations) in 50.04 seconds (30.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.150000000000e+02, gap 5828.5714%

Wrote result file './lp_solutions/grafo3913.43.sol'

