How to use MinRel heuristic directly after root relaxation?

Hi, Gurobi Support Center,

I have a very complex model with lots of constraints and variables. Optimizer is taking a lot of time to find even a single feasible solution. It only finds a solution after using MinRel heuristic. Is there any way of directly using MinRel heuristic at the start of finding a solution. I have set MIPFocus to 1. Though I tried other parameters like NodeMethod, ImproveStartNodes, Presolve, Heuristics, etc I was unable to reduce time taken by Gurobi Optimizer to find a feasible solution. I do understand that I am working with NP-Hard problems and it might take time but I am only asking if there is a way to directly apply MinRel heuristic.

Thanks for helping!

Gurobi 10.0.0 (mac64[arm]) logging started Fri Jul 14 00:09:08 2023

Set parameter LogFile to value "m.log"
Set parameter TimeLimit to value 1e+100
Set parameter MIPFocus to value 1
Gurobi Optimizer version 10.0.0 build v10.0.0rc2 (mac64[arm])

CPU model: Apple M1 Pro
Thread count: 10 physical cores, 10 logical processors, using up to 10 threads

Optimize a model with 247396 rows, 178178 columns and 17998410 nonzeros
Model fingerprint: 0xfd70ab14
Model has 203746 general constraints
Variable types: 0 continuous, 178178 integer (178178 binary)
Coefficient statistics:
  Matrix range     [1e+00, 1e+00]
  Objective range  [0e+00, 0e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 6e+00]
  GenCon rhs range [1e+00, 5e+00]
  GenCon coe range [1e+00, 1e+00]
Presolve removed 219160 rows and 128520 columns (presolve time = 6s) ...
Presolve removed 293235 rows and 143077 columns (presolve time = 10s) ...
Presolve removed 293790 rows and 143077 columns (presolve time = 15s) ...
Presolve removed 512739 rows and 316768 columns (presolve time = 20s) ...
Presolve removed 204723 rows and 125245 columns
Presolve time: 22.58s
Presolved: 42673 rows, 52933 columns, 646333 nonzeros
Variable types: 0 continuous, 52933 integer (51308 binary)
Deterministic concurrent LP optimizer: primal simplex, dual simplex, and barrier
Showing barrier log only...

Root barrier log...

Ordering time: 1.12s

Barrier statistics:
 AA' NZ     : 1.882e+06
 Factor NZ  : 2.747e+07 (roughly 260 MB of memory)
 Factor Ops : 2.880e+10 (less than 1 second per iteration)
 Threads    : 8

                  Objective                Residual
Iter       Primal          Dual         Primal    Dual     Compl     Time
   0   0.00000000e+00 -1.18800000e+02  5.12e+03 0.00e+00  5.24e-01    25s
   1   0.00000000e+00 -1.06153201e+03  2.20e+03 2.05e-02  2.24e-01    25s
   2   0.00000000e+00 -1.21408807e+03  3.45e+02 4.07e-15  3.99e-02    25s
   3   0.00000000e+00 -4.21302825e+02  5.27e+01 2.71e-15  6.60e-03    25s
   4   0.00000000e+00 -8.94484550e+01  4.29e+00 1.25e-15  8.66e-04    25s
   5   0.00000000e+00 -5.86120474e+01  1.39e-01 8.19e-16  4.24e-04    25s
   6   0.00000000e+00 -3.97067937e-01  2.68e-03 1.62e-16  2.83e-06    26s
   7   0.00000000e+00 -3.97009714e-04  4.56e-05 1.23e-18  2.83e-09    26s
   8   0.00000000e+00 -3.97008834e-07  5.56e-07 9.55e-22  2.83e-12    26s
   9   0.00000000e+00 -3.97008840e-10  1.03e-10 1.06e-24  2.83e-15    26s

Barrier solved model in 9 iterations and 26.07 seconds (58.45 work units)
Optimal objective 0.00000000e+00


Root crossover log...

      75 DPushes remaining with DInf 0.0000000e+00                26s

   45522 PPushes remaining with PInf 0.0000000e+00                26s
       0 PPushes remaining with PInf 0.0000000e+00                27s

  Push phase complete: Pinf 0.0000000e+00, Dinf 0.0000000e+00     27s


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   45525    0.0000000e+00   0.000000e+00   0.000000e+00     27s
Concurrent spin time: 0.59s (can be avoided by choosing Method=3)

Solved with barrier
   45525    0.0000000e+00   0.000000e+00   0.000000e+00     28s

Root relaxation: objective 0.000000e+00, 45525 iterations, 5.07 seconds (10.83 work units)
Total elapsed time = 41.94s
Total elapsed time = 50.81s
Total elapsed time = 57.95s
Total elapsed time = 63.51s

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

     0     0    0.00000    0 1986          -    0.00000      -     -   68s
     0     0    0.00000    0 4119          -    0.00000      -     -   87s
     0     0    0.00000    0 4121          -    0.00000      -     -   93s
     0     0    0.00000    0 1626          -    0.00000      -     -  160s
     0     0    0.00000    0 2962          -    0.00000      -     -  171s
     0     0    0.00000    0 1766          -    0.00000      -     -  235s
     0     0    0.00000    0 3067          -    0.00000      -     -  245s
     0     0    0.00000    0 2233          -    0.00000      -     -  325s
     0     0    0.00000    0 3154          -    0.00000      -     -  336s
     0     0    0.00000    0 1494          -    0.00000      -     -  412s
     0     2    0.00000    0 1494          -    0.00000      -     -  507s
     1     4    0.00000    1 2109          -    0.00000      - 31042  516s
     3     8    0.00000    2 3158          -    0.00000      - 16351  620s
     7    16    0.00000    3 3815          -    0.00000      - 14038  653s
    15    26    0.00000    4 3828          -    0.00000      - 14977  695s
    25    36    0.00000    5 3566          -    0.00000      - 17639  700s
    45    56    0.00000    7 3309          -    0.00000      - 11525  709s
    55    67    0.00000    8 3282          -    0.00000      -  9887  714s
    70   108    0.00000    9 3228          -    0.00000      -  8344  763s
   129   183    0.00000   11 1170          -    0.00000      -  7061  801s
   323   249 infeasible   17               -    0.00000      -  4458  853s
   517   308    0.00000   17 2392          -    0.00000      -  4173  936s
   708   409    0.00000   26 2001          -    0.00000      -  3985 1026s
  1093   530    0.00000   26 1883          -    0.00000      -  3726 1136s
  1594   628 infeasible   22               -    0.00000      -  3643 1282s
  2151   725    0.00000   30 1580          -    0.00000      -  3658 1460s
  2729   792    0.00000   24 1740          -    0.00000      -  3734 1617s
  3231   874    0.00000   37 2053          -    0.00000      -  3874 1800s
  3759   987    0.00000   36 1889          -    0.00000      -  3961 2005s
  4431  1101    0.00000   28 2094          -    0.00000      -  3938 2197s
  5150  1216 infeasible   32               -    0.00000      -  3910 2394s
  5880  1253 infeasible   38               -    0.00000      -  3915 2643s
  6513  1328    0.00000   43 1810          -    0.00000      -  3929 2852s
  7310  1414    0.00000   45 1700          -    0.00000      -  3906 3075s
  8143  1415    0.00000   29 1494          -    0.00000      -  3898 3195s
  8145  1416    0.00000   22 1796          -    0.00000      -  3897 3274s
  8146  1417    0.00000   20 3146          -    0.00000      -  3897 3290s
  8148  1418    0.00000   27 1800          -    0.00000      -  3896 3371s
  8149  1419    0.00000   18 2075          -    0.00000      -  3895 3391s
  8150  1420    0.00000   28 1656          -    0.00000      -  3895 3453s
  8151  1420    0.00000   23 1897          -    0.00000      -  3894 3468s
  8152  1421    0.00000   17 1670          -    0.00000      -  3894 3520s
  8153  1422    0.00000   30 1749          -    0.00000      -  3893 3533s
  8154  1422    0.00000   17 2046          -    0.00000      -  3893 3566s
  8155  1423    0.00000   38 2046          -    0.00000      -  3892 4361s
  8156  1427    0.00000   11 1136          -    0.00000      -  66.6 4415s
  8158  1430    0.00000   12 1161          -    0.00000      -  68.5 4426s
  8162  1437    0.00000   13 2715          -    0.00000      -  74.8 4453s
  8170  1444    0.00000   14 2550          -    0.00000      -  93.5 4457s
  8180  1451    0.00000   15 2349          -    0.00000      -  97.7 4460s
  8190  1457    0.00000   16 1778          -    0.00000      -   101 4474s
  8200  1464    0.00000   17 1733          -    0.00000      -   109 4476s
  8227  1485    0.00000   20 1587          -    0.00000      -   115 4484s
  8240  1520    0.00000   21 1512          -    0.00000      -   119 4498s
  8285  1522    0.00000   25 1607          -    0.00000      -   136 4528s
  8336  1556    0.00000   26 1659          -    0.00000      -   160 4560s
  8435  1549    0.00000   32 1576          -    0.00000      -   202 4618s
  8568  1556 infeasible   37               -    0.00000      -   252 4702s
  8841  1559    0.00000   45 1833          -    0.00000      -   331 4798s
  9307  1482 infeasible   47               -    0.00000      -   419 4907s
  9785  1389    0.00000   54 1356          -    0.00000      -   512 5036s
 10338  1290 infeasible   45               -    0.00000      -   614 5181s
 10993  1153 infeasible   55               -    0.00000      -   716 5334s
 11740   973 infeasible   61               -    0.00000      -   811 5488s
 12335   812 infeasible   58               -    0.00000      -   895 5649s
 12993   878 infeasible   52               -    0.00000      -   977 5818s
 13729   988 infeasible   50               -    0.00000      -  1055 5993s
 14481  1059    0.00000   57 1636          -    0.00000      -  1128 6174s
 15176  1131    0.00000   53 1550          -    0.00000      -  1199 6363s
 15890  1224    0.00000   56 1503          -    0.00000      -  1269 6562s
 16589  1328    0.00000   51 1111          -    0.00000      -  1335 6779s
 17401  1418 infeasible   56               -    0.00000      -  1400 7006s
 18147  1477 infeasible   58               -    0.00000      -  1465 7256s
 18966  1548 infeasible   66               -    0.00000      -  1534 7520s
 19891  1584    0.00000   44 1132          -    0.00000      -  1601 7793s
 20811  1699 infeasible   57               -    0.00000      -  1662 8083s
 21882  1734    0.00000   59 1321          -    0.00000      -  1716 8378s
 22939  1776 infeasible   63               -    0.00000      -  1770 8686s
 24066  1922    0.00000   60 1607          -    0.00000      -  1818 9006s
 25313  1949 infeasible   60               -    0.00000      -  1859 9337s
 26567  2043 infeasible   52               -    0.00000      -  1900 9680s
 27963  2158    0.00000   66 1559          -    0.00000      -  1933 10034s
 29385  2342 infeasible   46               -    0.00000      -  1967 10400s
 30822  2463    0.00000   66 1601          -    0.00000      -  1996 10779s
 32423  2611 infeasible   51               -    0.00000      -  2019 11165s
 34186  2732    0.00000   49 1032          -    0.00000      -  2035 11557s
 35844  2903 infeasible   72               -    0.00000      -  2055 11905s
 37320  2947    0.00000   55 1700          -    0.00000      -  2066 12255s
 38902  3046 infeasible   61               -    0.00000      -  2079 12604s
 40345  3201 infeasible   50               -    0.00000      -  2095 12953s
 41834  3292 infeasible   50               -    0.00000      -  2108 13300s
 43287  3440 infeasible   59               -    0.00000      -  2119 13650s
 44756  3526    0.00000   68 1291          -    0.00000      -  2134 13996s
 46147  3638    0.00000   67 1533          -    0.00000      -  2148 14345s
 47725  3701 infeasible   65               -    0.00000      -  2155 14694s
 49338  3820 infeasible   65               -    0.00000      -  2160 15035s
 50954  3896    0.00000   65 1012          -    0.00000      -  2163 15408s
 52549  3999    0.00000   66 1442          -    0.00000      -  2174 15752s
 54078  4130    0.00000   59 1493          -    0.00000      -  2182 16089s
 55246  4130    0.00000   74 1294          -    0.00000      -  2188 16090s
 55606  4220 infeasible   73               -    0.00000      -  2188 16423s
 57095  4282 infeasible   62               -    0.00000      -  2194 16758s
 58627  4367 infeasible   72               -    0.00000      -  2200 17093s
 60176  4433 infeasible   50               -    0.00000      -  2204 17426s
 61691  4478 infeasible   73               -    0.00000      -  2209 17761s
 63254  4560 infeasible   70               -    0.00000      -  2212 18095s
 64782  4576 infeasible   64               -    0.00000      -  2215 18426s
 66265  4724    0.00000   73 1790          -    0.00000      -  2217 18760s
 67794  4725    0.00000   62 1494          -    0.00000      -  2219 18846s
Exploring 50000 nodes in MinRel heuristic
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18890s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18895s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18900s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18905s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18910s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18915s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18920s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18925s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18930s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18935s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18940s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18945s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18950s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18955s
MinRel: 0 nodes explored, relaxation 1.00e+100, total elapsed time 18960s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 18966s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 18970s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 18975s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 18980s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 18985s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 18990s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 18995s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 19000s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 19005s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 19010s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 19015s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 19020s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 19025s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 19030s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 19035s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 19040s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 19045s
MinRel: 0 nodes explored, relaxation 1.24e+02, total elapsed time 19050s
MinRel: 0 nodes explored, relaxation 7.00e+01, total elapsed time 19055s
MinRel: 0 nodes explored, relaxation 7.00e+01, total elapsed time 19060s
MinRel: 0 nodes explored, relaxation 7.00e+01, total elapsed time 19065s
MinRel: 0 nodes explored, relaxation 7.00e+01, total elapsed time 19070s
MinRel: 0 nodes explored, relaxation 7.00e+01, total elapsed time 19075s
MinRel: 0 nodes explored, relaxation 7.00e+01, total elapsed time 19080s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19085s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19090s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19095s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19100s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19105s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19110s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19115s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19120s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19125s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19130s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19135s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19140s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19145s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19150s
MinRel: 0 nodes explored, relaxation 6.30e+01, total elapsed time 19155s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19160s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19165s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19170s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19175s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19180s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19185s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19190s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19195s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19200s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19205s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19210s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19215s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19220s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19225s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19230s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19235s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19240s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19245s
MinRel: 0 nodes explored, relaxation 4.80e+01, total elapsed time 19250s
MinRel: 0 nodes explored, relaxation 1.90e+01, total elapsed time 19255s
MinRel: 0 nodes explored, relaxation 1.90e+01, total elapsed time 19260s
MinRel: 0 nodes explored, relaxation 1.90e+01, total elapsed time 19265s
MinRel: 0 nodes explored, relaxation 1.90e+01, total elapsed time 19270s
MinRel: 0 nodes explored, relaxation 1.90e+01, total elapsed time 19275s
MinRel: 0 nodes explored, relaxation 1.90e+01, total elapsed time 19280s
MinRel: 0 nodes explored, relaxation 1.90e+01, total elapsed time 19285s
MinRel: 0 nodes explored, relaxation 1.90e+01, total elapsed time 19290s
MinRel: 0 nodes explored, relaxation 1.90e+01, total elapsed time 19295s
MinRel: 0 nodes explored, relaxation 1.90e+01, total elapsed time 19300s
MinRel: 0 nodes explored, relaxation 1.90e+01, total elapsed time 19305s
MinRel: 2 nodes explored, relaxation 1.90e+01, total elapsed time 19310s
MinRel: 2 nodes explored, relaxation 1.90e+01, total elapsed time 19315s
MinRel: 6 nodes explored, relaxation 1.90e+01, total elapsed time 19320s
MinRel: 6 nodes explored, relaxation 1.90e+01, total elapsed time 19325s
MinRel: 6 nodes explored, relaxation 1.90e+01, total elapsed time 19330s
MinRel: 6 nodes explored, relaxation 1.90e+01, total elapsed time 19335s
MinRel: 14 nodes explored, relaxation 1.90e+01, total elapsed time 19340s
...
MinRel: 29975 nodes explored, relaxation 1.00e+00, total elapsed time 46970s
MinRel: 29975 nodes explored, relaxation 1.00e+00, total elapsed time 46975s
MinRel: 29975 nodes explored, relaxation 1.00e+00, total elapsed time 46980s
MinRel: 29975 nodes explored, relaxation 1.00e+00, total elapsed time 46985s
MinRel: 29975 nodes explored, relaxation 1.00e+00, total elapsed time 46990s
MinRel: 29975 nodes explored, relaxation 1.00e+00, total elapsed time 46995s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47000s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47005s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47010s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47015s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47020s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47025s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47030s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47035s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47040s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47045s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47050s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47055s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47060s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47065s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47070s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47075s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47080s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47085s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47090s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47095s
MinRel: 31138 nodes explored, relaxation 1.00e+00, total elapsed time 47100s
MinRel: 33466 nodes explored, relaxation 1.00e+00, total elapsed time 47105s
MinRel: 33466 nodes explored, relaxation 1.00e+00, total elapsed time 47110s
MinRel: 33466 nodes explored, relaxation 1.00e+00, total elapsed time 47115s
MinRel: 33466 nodes explored, relaxation 1.00e+00, total elapsed time 47120s
MinRel: 33466 nodes explored, relaxation 1.00e+00, total elapsed time 47125s
MinRel: 33466 nodes explored, relaxation 1.00e+00, total elapsed time 47130s
MinRel: 33466 nodes explored, relaxation 1.00e+00, total elapsed time 47135s
MinRel: 33466 nodes explored, relaxation 1.00e+00, total elapsed time 47140s
MinRel: 33466 nodes explored, relaxation 1.00e+00, total elapsed time 47145s
MinRel: 33466 nodes explored, relaxation 1.00e+00, total elapsed time 47150s
H67795  4489                       0.0000000    0.00000  0.00%  2219 47154s
Feasible solution found by MinRel heuristic at node 35795

Explored 67795 nodes (182857283 simplex iterations) in 47155.06 seconds (112543.62 work units)
Thread count was 10 (of 10 available processors)

Solution count 1: 0 

Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0000%