
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:44:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7542.40.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/grafo7542.40.lp
Reading time = 0.16 seconds
: 102771 rows, 2142 columns, 310127 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 102771 rows, 2142 columns and 310127 nonzeros
Model fingerprint: 0xe08423c9
Variable types: 46 continuous, 2096 integer (2096 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 29185 rows and 25 columns
Presolve time: 0.75s
Presolved: 73586 rows, 2117 columns, 222904 nonzeros
Variable types: 0 continuous, 2117 integer (2071 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2117 rows, 75703 columns, 225021 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24887    3.9737743e+01   0.000000e+00   1.085047e+04      5s
   38781    4.0000000e+01   0.000000e+00   0.000000e+00      8s
   38781    4.0000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.000000e+01, 38781 iterations, 6.91 seconds (6.53 work units)
Total elapsed time = 14.37s (DegenMoves)
Total elapsed time = 15.05s (DegenMoves)

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

     0     0   40.00000    0  432    8.00000   40.00000   400%     -   15s
H    0     0                      10.0000000   40.00000   300%     -   15s
     0     0   40.00000    0  862   10.00000   40.00000   300%     -   30s
     0     0   40.00000    0  861   10.00000   40.00000   300%     -   32s
     0     0   40.00000    0  852   10.00000   40.00000   300%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 12
  Clique: 31
  MIR: 114
  StrongCG: 3
  Zero half: 63
  RLT: 66
  BQP: 3

Explored 1 nodes (65967 simplex iterations) in 50.08 seconds (45.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.000000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo7542.40.sol'

