
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:46:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7382.48.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/grafo7382.48.lp
Reading time = 0.83 seconds
: 431802 rows, 4128 columns, 1299805 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 431802 rows, 4128 columns and 1299805 nonzeros
Model fingerprint: 0x1d3c1236
Variable types: 68 continuous, 4060 integer (4060 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, 7e+01]
Presolve removed 160381 rows and 17 columns
Presolve time: 3.74s
Presolved: 271421 rows, 4111 columns, 819279 nonzeros
Variable types: 0 continuous, 4111 integer (4043 binary)
Root relaxation presolved: 4094 rows, 275515 columns, 823390 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.5404200e+03   0.000000e+00   1.451336e+06      6s
   16511    1.5390404e+02   0.000000e+00   8.579166e+05     10s
   28257    1.1444678e+02   0.000000e+00   2.654523e+05     16s
   34251    9.8894949e+01   0.000000e+00   5.601609e+05     20s
   43821    8.7836949e+01   0.000000e+00   4.053508e+05     26s
   51607    8.1786917e+01   0.000000e+00   7.767123e+05     30s
   60580    7.7727557e+01   0.000000e+00   3.745443e+05     35s
   69868    7.5683726e+01   0.000000e+00   1.570557e+05     40s
   78483    7.4652594e+01   0.000000e+00   1.471249e+05     45s

Root relaxation: time limit, 0 iterations, 45.43 seconds (25.64 work units)

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

H    0     0                       3.0000000  479.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.08 seconds (29.38 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 4.790000000000e+02, gap 15866.6667%

Wrote result file './lp_solutions/grafo7382.48.sol'

