
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:35:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4734.49.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/grafo4734.49.lp
Reading time = 0.17 seconds
: 103440 rows, 2736 columns, 312426 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 103440 rows, 2736 columns and 312426 nonzeros
Model fingerprint: 0xec683bba
Variable types: 48 continuous, 2688 integer (2688 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 20094 rows and 17 columns
Presolve time: 0.69s
Presolved: 83346 rows, 2719 columns, 252664 nonzeros
Variable types: 0 continuous, 2719 integer (2671 binary)
Root relaxation presolved: 2705 rows, 86051 columns, 255383 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19359    4.9936009e+01   0.000000e+00   1.617513e+04      5s
   38456    4.9918404e+01   0.000000e+00   1.084450e+04     10s
   50356    5.0000000e+01   0.000000e+00   0.000000e+00     14s
   50356    5.0000000e+01   0.000000e+00   0.000000e+00     14s
   50356    5.0000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 5.000000e+01, 50356 iterations, 12.88 seconds (11.90 work units)
Total elapsed time = 23.26s (DegenMoves)

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

     0     0   50.00000    0  377          -   50.00000      -     -   24s
H    0     0                      10.0000000   50.00000   400%     -   25s
     0     0   50.00000    0  803   10.00000   50.00000   400%     -   32s
H    0     0                      13.0000000   50.00000   285%     -   32s
H    0     0                      14.0000000   50.00000   257%     -   33s
     0     0   50.00000    0  774   14.00000   50.00000   257%     -   33s
     0     0   50.00000    0  409   14.00000   50.00000   257%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 33
  Cover: 4
  Clique: 18
  MIR: 92
  Zero half: 32
  RLT: 72
  BQP: 4

Explored 1 nodes (80174 simplex iterations) in 50.04 seconds (46.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 13 10 

Time limit reached
Best objective 1.400000000000e+01, best bound 5.000000000000e+01, gap 257.1429%

Wrote result file './lp_solutions/grafo4734.49.sol'

