
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:39:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5145.40.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/grafo5145.40.lp
Reading time = 0.39 seconds
: 196019 rows, 2030 columns, 589634 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 196019 rows, 2030 columns and 589634 nonzeros
Model fingerprint: 0x1ad2c020
Variable types: 41 continuous, 1989 integer (1989 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 109164 rows and 32 columns
Presolve time: 1.46s
Presolved: 86855 rows, 1998 columns, 262425 nonzeros
Variable types: 0 continuous, 1998 integer (1957 binary)
Found heuristic solution: objective 16.0000000
Root relaxation presolved: 1995 rows, 88850 columns, 264423 nonzeros


Root relaxation: objective 4.500000e+01, 2210 iterations, 0.95 seconds (0.89 work units)
Total elapsed time = 7.27s (DegenMoves)
Total elapsed time = 11.48s (DegenMoves)

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

     0     0   45.00000    0  327   16.00000   45.00000   181%     -   13s
     0     0   45.00000    0  681   16.00000   45.00000   181%     -   22s
     0     0   45.00000    0  692   16.00000   45.00000   181%     -   23s
     0     0   45.00000    0  686   16.00000   45.00000   181%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 37
  Cover: 6
  Clique: 18
  MIR: 119
  Zero half: 27
  RLT: 69
  BQP: 2

Explored 1 nodes (29264 simplex iterations) in 50.04 seconds (46.94 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 16 5 

Time limit reached
Best objective 1.600000000000e+01, best bound 4.500000000000e+01, gap 181.2500%

Wrote result file './lp_solutions/grafo5145.40.sol'

