
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:21:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5746.45.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/grafo5746.45.lp
Reading time = 0.24 seconds
: 126361 rows, 2580 columns, 381258 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 126361 rows, 2580 columns and 381258 nonzeros
Model fingerprint: 0x74f541d6
Variable types: 48 continuous, 2532 integer (2532 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 39016 rows and 52 columns
Presolve time: 0.97s
Presolved: 87345 rows, 2528 columns, 264580 nonzeros
Variable types: 0 continuous, 2528 integer (2480 binary)
Root relaxation presolved: 2519 rows, 89864 columns, 267108 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18134    4.6916698e+01   0.000000e+00   1.801516e+04      5s
   33316    4.7000000e+01   0.000000e+00   0.000000e+00      9s
   33316    4.7000000e+01   0.000000e+00   0.000000e+00      9s
   33316    4.7000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.700000e+01, 33316 iterations, 7.90 seconds (5.24 work units)
Total elapsed time = 16.64s (DegenMoves)

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

     0     0   47.00000    0  440          -   47.00000      -     -   17s
H    0     0                       9.0000000   47.00000   422%     -   20s
     0     0   47.00000    0  709    9.00000   47.00000   422%     -   28s
H    0     0                      13.0000000   47.00000   262%     -   29s
H    0     0                      14.0000000   47.00000   236%     -   29s
     0     0   47.00000    0  689   14.00000   47.00000   236%     -   29s
     0     0   47.00000    0  559   14.00000   47.00000   236%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 55
  Cover: 12
  Clique: 12
  MIR: 111
  GUB cover: 1
  Zero half: 32
  RLT: 61
  BQP: 3
  PSD: 1

Explored 1 nodes (58276 simplex iterations) in 50.04 seconds (40.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 13 9 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.700000000000e+01, gap 235.7143%

Wrote result file './lp_solutions/grafo5746.45.sol'

