
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:15:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3660.45.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/grafo3660.45.lp
Reading time = 0.64 seconds
: 346726 rows, 3047 columns, 1042983 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 346726 rows, 3047 columns and 1042983 nonzeros
Model fingerprint: 0x0031303a
Variable types: 55 continuous, 2992 integer (2992 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, 6e+01]
Presolve removed 143735 rows and 29 columns
Presolve time: 3.44s
Presolved: 202991 rows, 3018 columns, 612274 nonzeros
Variable types: 0 continuous, 3018 integer (2963 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3015 rows, 206006 columns, 615292 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    1815    2.1234561e+02   0.000000e+00   7.993861e+05      5s
   22568    8.8219029e+01   0.000000e+00   1.432392e+06     10s
   35872    6.9819486e+01   0.000000e+00   1.994903e+05     15s
   48963    6.3743228e+01   0.000000e+00   9.760061e+04     20s
   61987    6.3707266e+01   0.000000e+00   6.288751e+04     25s
   75011    6.3694284e+01   0.000000e+00   5.015436e+04     30s
   87221    6.3688257e+01   0.000000e+00   9.932104e+03     35s
   99431    6.3685617e+01   0.000000e+00   1.538156e+03     40s
  107341    6.4000000e+01   0.000000e+00   0.000000e+00     43s
  107341    6.4000000e+01   0.000000e+00   0.000000e+00     44s
  107341    6.4000000e+01   0.000000e+00   0.000000e+00     44s

Root relaxation: objective 6.400000e+01, 107341 iterations, 39.55 seconds (23.51 work units)

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

     0     0   64.00000    0 1655    7.00000   64.00000   814%     -   50s

Explored 1 nodes (108698 simplex iterations) in 50.10 seconds (32.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 6.400000000000e+01, gap 814.2857%

Wrote result file './lp_solutions/grafo3660.45.sol'

