
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:01:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5402.43.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/grafo5402.43.lp
Reading time = 0.36 seconds
: 183103 rows, 2659 columns, 551774 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 183103 rows, 2659 columns and 551774 nonzeros
Model fingerprint: 0x98ec89c1
Variable types: 51 continuous, 2608 integer (2608 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 65505 rows and 25 columns
Presolve time: 1.62s
Presolved: 117598 rows, 2634 columns, 355774 nonzeros
Variable types: 0 continuous, 2634 integer (2583 binary)
Root relaxation presolved: 2634 rows, 120232 columns, 358408 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13800    5.5760565e+01   0.000000e+00   1.982699e+05      5s
   30949    4.5675536e+01   0.000000e+00   5.604900e+04     10s
   47759    4.5650643e+01   0.000000e+00   4.370379e+04     15s
   64034    4.5641608e+01   0.000000e+00   7.378920e+03     20s
   80309    4.5638073e+01   0.000000e+00   1.284380e+03     25s
   96586    4.5637189e+01   0.000000e+00   1.431901e-02     30s
   96662    4.6000000e+01   0.000000e+00   0.000000e+00     30s
   96662    4.6000000e+01   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 4.600000e+01, 96662 iterations, 28.31 seconds (16.43 work units)

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

     0     0   46.00000    0 1641          -   46.00000      -     -   50s
H    0     0                       6.0000000   46.00000   667%     -   50s

Explored 1 nodes (105382 simplex iterations) in 50.06 seconds (34.53 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.600000000000e+01, gap 666.6667%

Wrote result file './lp_solutions/grafo5402.43.sol'

