
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:16:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3703.45.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/grafo3703.45.lp
Reading time = 0.75 seconds
: 403172 rows, 3687 columns, 1213353 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 403172 rows, 3687 columns and 1213353 nonzeros
Model fingerprint: 0xfcbf3bc1
Variable types: 63 continuous, 3624 integer (3624 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]
Found heuristic solution: objective 2.0000000
Presolve removed 161938 rows and 9 columns
Presolve time: 3.38s
Presolved: 241234 rows, 3678 columns, 728294 nonzeros
Variable types: 0 continuous, 3678 integer (3615 binary)
Found heuristic solution: objective 15.0000000
Root relaxation presolved: 3662 rows, 244896 columns, 731972 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    2847    3.2919907e+02   0.000000e+00   5.130474e+06      5s
   23341    1.4847740e+02   0.000000e+00   7.350920e+05     11s
   34621    1.1890726e+02   0.000000e+00   9.072047e+05     16s
   44479    1.0184537e+02   0.000000e+00   2.091618e+05     21s
   54635    8.1817661e+01   0.000000e+00   2.204172e+05     26s
   63859    7.2775194e+01   0.000000e+00   2.222000e+05     30s
   74358    7.2723656e+01   0.000000e+00   2.887015e+05     35s
   84453    7.2695956e+01   0.000000e+00   4.563053e+05     40s
   95296    7.2670817e+01   0.000000e+00   4.876281e+04     45s

Root relaxation: time limit, 105014 iterations, 46.19 seconds (27.47 work units)

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

     0     0          -    0        15.00000  509.00000  3293%     -   50s

Explored 1 nodes (105014 simplex iterations) in 50.04 seconds (30.70 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 15 2 

Time limit reached
Best objective 1.500000000000e+01, best bound 5.090000000000e+02, gap 3293.3333%

Wrote result file './lp_solutions/grafo3703.45.sol'

