
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:17:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7006.43.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/grafo7006.43.lp
Reading time = 0.19 seconds
: 117861 rows, 2381 columns, 355509 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 117861 rows, 2381 columns and 355509 nonzeros
Model fingerprint: 0x1a0d9692
Variable types: 46 continuous, 2335 integer (2335 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]
Found heuristic solution: objective 5.0000000
Presolve removed 36427 rows and 6 columns
Presolve time: 0.72s
Presolved: 81434 rows, 2375 columns, 246624 nonzeros
Variable types: 0 continuous, 2375 integer (2329 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2371 rows, 83805 columns, 248999 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23051    6.0929238e+01   0.000000e+00   2.379784e+04      5s
   46167    6.0912929e+01   0.000000e+00   1.624255e+03     10s
   65894    6.1000000e+01   0.000000e+00   0.000000e+00     15s
   65894    6.1000000e+01   0.000000e+00   0.000000e+00     15s
   65894    6.1000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 6.100000e+01, 65894 iterations, 13.83 seconds (13.39 work units)
Total elapsed time = 26.97s (DegenMoves)
Total elapsed time = 30.79s (DegenMoves)

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

     0     0   61.00000    0  586   13.00000   61.00000   369%     -   31s
     0     0   61.00000    0  823   13.00000   61.00000   369%     -   44s
     0     0   61.00000    0  782   13.00000   61.00000   369%     -   47s

Cutting planes:
  Gomory: 3
  Lift-and-project: 16
  Cover: 20
  Clique: 18
  MIR: 173
  Zero half: 101
  RLT: 29
  BQP: 1

Explored 1 nodes (91617 simplex iterations) in 50.12 seconds (52.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 5 

Time limit reached
Best objective 1.300000000000e+01, best bound 6.100000000000e+01, gap 369.2308%

Wrote result file './lp_solutions/grafo7006.43.sol'

