
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:00:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3300.42.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/grafo3300.42.lp
Reading time = 0.90 seconds
: 440211 rows, 2589 columns, 1322916 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 440211 rows, 2589 columns and 1322916 nonzeros
Model fingerprint: 0xd3683b9e
Variable types: 48 continuous, 2541 integer (2541 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 202699 rows and 4 columns
Presolve time: 3.82s
Presolved: 237512 rows, 2585 columns, 715231 nonzeros
Variable types: 0 continuous, 2585 integer (2537 binary)
Found heuristic solution: objective 14.0000000
Root relaxation presolved: 2581 rows, 240093 columns, 717816 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    9.4178261e+02   0.000000e+00   1.920087e+06      5s
   28600    1.0397963e+02   0.000000e+00   3.957510e+05     10s
   46297    7.8329152e+01   0.000000e+00   4.364356e+05     15s
   64129    5.8415179e+01   0.000000e+00   1.159645e+05     20s
   80538    5.6854464e+01   0.000000e+00   4.946848e+04     25s
   97929    5.6815374e+01   0.000000e+00   1.303934e+04     30s
  115297    5.6800632e+01   0.000000e+00   2.647502e+04     35s
  133750    5.6793994e+01   0.000000e+00   4.110429e+03     40s
  152195    5.6791988e+01   0.000000e+00   1.002604e+01     45s
  158173    5.7000000e+01   0.000000e+00   0.000000e+00     47s
  158173    5.7000000e+01   0.000000e+00   0.000000e+00     47s
  158173    5.7000000e+01   0.000000e+00   0.000000e+00     47s

Root relaxation: objective 5.700000e+01, 158173 iterations, 42.66 seconds (25.66 work units)

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

     0     0   57.00000    0 1498   14.00000   57.00000   307%     -   50s

Explored 1 nodes (158669 simplex iterations) in 50.13 seconds (31.78 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 14 3 

Time limit reached
Best objective 1.400000000000e+01, best bound 5.700000000000e+01, gap 307.1429%

Wrote result file './lp_solutions/grafo3300.42.sol'

