
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:02:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3914.42.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/grafo3914.42.lp
Reading time = 0.18 seconds
: 112536 rows, 2393 columns, 339660 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 112536 rows, 2393 columns and 339660 nonzeros
Model fingerprint: 0x18748b5d
Variable types: 49 continuous, 2344 integer (2344 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 1.0000000
Presolve removed 29941 rows and 27 columns
Presolve time: 0.79s
Presolved: 82595 rows, 2366 columns, 250180 nonzeros
Variable types: 0 continuous, 2366 integer (2317 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2366 rows, 84961 columns, 252546 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22660    4.9792972e+01   0.000000e+00   8.921229e+04      5s
   46816    4.9771826e+01   0.000000e+00   2.499185e+02     10s
   49925    5.0000000e+01   0.000000e+00   0.000000e+00     11s
   49925    5.0000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 5.000000e+01, 49925 iterations, 9.79 seconds (7.71 work units)
Total elapsed time = 21.49s (DegenMoves)

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

     0     0   50.00000    0  485   11.00000   50.00000   355%     -   23s
     0     0   50.00000    0  821   11.00000   50.00000   355%     -   34s
     0     0   50.00000    0  802   11.00000   50.00000   355%     -   35s
     0     0   50.00000    0  807   11.00000   50.00000   355%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 19
  Cover: 20
  Clique: 18
  MIR: 182
  StrongCG: 1
  Zero half: 46
  RLT: 71
  BQP: 2

Explored 1 nodes (76794 simplex iterations) in 50.03 seconds (49.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 1 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.000000000000e+01, gap 354.5455%

Wrote result file './lp_solutions/grafo3914.42.sol'

