
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:49:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5763.39.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/grafo5763.39.lp
Reading time = 0.27 seconds
: 169454 rows, 2473 columns, 510712 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 169454 rows, 2473 columns and 510712 nonzeros
Model fingerprint: 0x379c2dfc
Variable types: 52 continuous, 2421 integer (2421 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 58391 rows and 36 columns
Presolve time: 1.31s
Presolved: 111063 rows, 2437 columns, 335818 nonzeros
Variable types: 0 continuous, 2437 integer (2385 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2437 rows, 113500 columns, 338255 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17957    5.2797197e+01   0.000000e+00   6.007740e+05      5s
   38538    5.2710169e+01   0.000000e+00   9.494853e+03     10s
   58938    5.2693341e+01   0.000000e+00   1.774457e+03     15s
   74331    5.3000000e+01   0.000000e+00   0.000000e+00     19s
   74331    5.3000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 5.300000e+01, 74331 iterations, 17.31 seconds (13.20 work units)
Total elapsed time = 39.79s (DegenMoves)
Total elapsed time = 48.20s (DegenMoves)

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

     0     0   53.00000    0  969    7.00000   53.00000   657%     -   50s

Explored 1 nodes (94056 simplex iterations) in 50.04 seconds (55.55 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.300000000000e+01, gap 657.1429%

Wrote result file './lp_solutions/grafo5763.39.sol'

