
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:42:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2957.37.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/grafo2957.37.lp
Reading time = 0.47 seconds
: 288022 rows, 2310 columns, 866179 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 288022 rows, 2310 columns and 866179 nonzeros
Model fingerprint: 0xebf3c1bb
Variable types: 47 continuous, 2263 integer (2263 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]
Found heuristic solution: objective 3.0000000
Presolve removed 130165 rows and 7 columns
Presolve time: 2.11s
Presolved: 157857 rows, 2303 columns, 476074 nonzeros
Variable types: 0 continuous, 2303 integer (2256 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2291 rows, 160148 columns, 478377 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16343    1.1616886e+02   0.000000e+00   3.119157e+05      5s
   41200    6.3969964e+01   0.000000e+00   3.958178e+05     10s
   64073    5.7873989e+01   0.000000e+00   4.875718e+04     15s
   87623    5.7849367e+01   0.000000e+00   9.065847e+03     20s
  112676    5.7843692e+01   0.000000e+00   1.786126e+00     25s
  112965    5.8000000e+01   0.000000e+00   0.000000e+00     25s
  112965    5.8000000e+01   0.000000e+00   0.000000e+00     25s
  112965    5.8000000e+01   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 5.800000e+01, 112965 iterations, 22.92 seconds (16.80 work units)
Total elapsed time = 48.05s (DegenMoves)

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

     0     0   58.00000    0  654   11.00000   58.00000   427%     -   50s

Explored 1 nodes (124735 simplex iterations) in 50.05 seconds (45.72 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 3 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.800000000000e+01, gap 427.2727%

Wrote result file './lp_solutions/grafo2957.37.sol'

