
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:38:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3055.36.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/grafo3055.36.lp
Reading time = 0.16 seconds
: 70880 rows, 1874 columns, 214217 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 70880 rows, 1874 columns and 214217 nonzeros
Model fingerprint: 0xcae134af
Variable types: 44 continuous, 1830 integer (1830 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 1.0000000
Presolve removed 17837 rows and 30 columns
Presolve time: 0.83s
Presolved: 53043 rows, 1844 columns, 161101 nonzeros
Variable types: 0 continuous, 1844 integer (1800 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1844 rows, 54887 columns, 162945 nonzeros


Root relaxation: objective 4.500000e+01, 2137 iterations, 0.79 seconds (0.54 work units)
Total elapsed time = 10.54s (DegenMoves)

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

     0     0   45.00000    0  583    9.00000   45.00000   400%     -   12s
H    0     0                      10.0000000   45.00000   350%     -   12s
     0     0   45.00000    0  892   10.00000   45.00000   350%     -   32s
     0     0   45.00000    0  844   10.00000   45.00000   350%     -   33s
     0     0   45.00000    0  949   10.00000   45.00000   350%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 4
  Clique: 4
  MIR: 80
  Zero half: 99
  RLT: 53

Explored 1 nodes (28811 simplex iterations) in 50.08 seconds (32.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.500000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo3055.36.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 07:18:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3055.36.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/grafo3055.36.lp
Reading time = 0.12 seconds
: 70880 rows, 1874 columns, 214217 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 70880 rows, 1874 columns and 214217 nonzeros
Model fingerprint: 0xcae134af
Variable types: 44 continuous, 1830 integer (1830 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 1.0000000
Presolve removed 17837 rows and 30 columns
Presolve time: 0.49s
Presolved: 53043 rows, 1844 columns, 161101 nonzeros
Variable types: 0 continuous, 1844 integer (1800 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1844 rows, 54887 columns, 162945 nonzeros


Root relaxation: objective 4.500000e+01, 2137 iterations, 0.50 seconds (0.54 work units)
Total elapsed time = 8.07s (DegenMoves)

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

     0     0   45.00000    0  583    9.00000   45.00000   400%     -    9s
H    0     0                      10.0000000   45.00000   350%     -    9s
     0     0   45.00000    0  892   10.00000   45.00000   350%     -   23s
     0     0   45.00000    0  844   10.00000   45.00000   350%     -   24s
     0     0   45.00000    0  788   10.00000   45.00000   350%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 4
  Clique: 4
  MIR: 80
  Zero half: 99
  RLT: 53

Explored 1 nodes (41225 simplex iterations) in 50.08 seconds (44.37 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.500000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo3055.36.sol'

