
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:35:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7602.42.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/grafo7602.42.lp
Reading time = 0.16 seconds
: 101189 rows, 2647 columns, 306068 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 101189 rows, 2647 columns and 306068 nonzeros
Model fingerprint: 0xcb2b2f20
Variable types: 54 continuous, 2593 integer (2593 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 2.0000000
Presolve removed 16441 rows and 41 columns
Presolve time: 0.74s
Presolved: 84748 rows, 2606 columns, 257246 nonzeros
Variable types: 0 continuous, 2606 integer (2552 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2606 rows, 87354 columns, 259852 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20483    4.6891588e+01   0.000000e+00   6.998496e+04      5s
   41665    4.6880610e+01   0.000000e+00   5.006646e+01     10s
   44049    4.7000000e+01   0.000000e+00   0.000000e+00     11s
   44049    4.7000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.700000e+01, 44049 iterations, 9.89 seconds (8.82 work units)
Total elapsed time = 29.24s (DegenMoves)
Total elapsed time = 31.32s (DegenMoves)
Total elapsed time = 36.42s (DegenMoves)

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

     0     0   47.00000    0  647    9.00000   47.00000   422%     -   37s
H    0     0                      11.0000000   47.00000   327%     -   37s
     0     0          -    0        11.00000   47.00000   327%     -   50s

Cutting planes:
  Gomory: 26
  Cover: 39
  Clique: 7
  MIR: 102
  GUB cover: 12
  Zero half: 59
  RLT: 31
  BQP: 1

Explored 1 nodes (73897 simplex iterations) in 50.01 seconds (53.53 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 9 2 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.700000000000e+01, gap 327.2727%

Wrote result file './lp_solutions/grafo7602.42.sol'

