
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:01:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7303.46.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/grafo7303.46.lp
Reading time = 0.18 seconds
: 105525 rows, 2561 columns, 318655 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 105525 rows, 2561 columns and 318655 nonzeros
Model fingerprint: 0x854b6faa
Variable types: 48 continuous, 2513 integer (2513 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 31075 rows and 64 columns
Presolve time: 0.75s
Presolved: 74450 rows, 2497 columns, 225850 nonzeros
Variable types: 0 continuous, 2497 integer (2449 binary)
Root relaxation presolved: 2494 rows, 76944 columns, 228347 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18225    4.5962891e+01   0.000000e+00   4.031037e+03      5s
   33041    4.6000000e+01   0.000000e+00   0.000000e+00      9s
   33041    4.6000000e+01   0.000000e+00   0.000000e+00      9s
   33041    4.6000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.600000e+01, 33041 iterations, 8.31 seconds (5.28 work units)
Total elapsed time = 20.90s (DegenMoves)

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

     0     0   46.00000    0  521          -   46.00000      -     -   24s
H    0     0                       7.0000000   46.00000   557%     -   28s
     0     0   46.00000    0  860    7.00000   46.00000   557%     -   43s
     0     0   46.00000    0  815    7.00000   46.00000   557%     -   44s

Cutting planes:
  Gomory: 3
  Lift-and-project: 28
  Cover: 11
  Clique: 8
  MIR: 146
  StrongCG: 2
  Zero half: 24
  RLT: 32
  BQP: 1

Explored 1 nodes (55924 simplex iterations) in 50.28 seconds (32.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.600000000000e+01, gap 557.1429%

Wrote result file './lp_solutions/grafo7303.46.sol'

