GRIDSIZE is 40 FIELD is 0. Seed is 23409 Upper bound is 0. Lower bound is -1600.0000000000 M is 1 N is 4801 Added 500 Constraints in this stage 1 at iteration 2 Number of each type: 500 0 0 0 We now have 500 Constraints. We now have 5300 Variables We now have 2500 Nonzeroes 1 constraints dropped; 0 through fixing vars Upper and lower bounds: -0.10880000D+04 -0.16000000D+04 Time on this stage: 3.68000 seconds Added 460 Constraints in this stage 2 at iteration 4 Number of each type: 460 0 0 0 We now have 960 Constraints. We now have 5760 Variables We now have 4800 Nonzeroes Upper and lower bounds: -0.10880000D+04 -0.14464068D+04 Time on this stage: 6.11000 seconds Added 185 Constraints in this stage 3 at iteration 9 Number of each type: 185 0 0 0 We now have 1145 Constraints. We now have 5945 Variables We now have 5725 Nonzeroes Upper and lower bounds: -0.11020000D+04 -0.11183478D+04 Time on this stage: 6.86000 seconds Added 78 Constraints in this stage 4 at iteration 14 Number of each type: 78 0 0 0 We now have 1223 Constraints. We now have 6023 Variables We now have 6115 Nonzeroes Upper and lower bounds: -0.11020000D+04 -0.11136268D+04 Time on this stage: 3.66000 seconds Added 61 Constraints in this stage 5 at iteration 19 Number of each type: 40 0 21 0 We now have 1284 Constraints. We now have 6084 Variables We now have 6766 Nonzeroes Upper and lower bounds: -0.11020000D+04 -0.11084143D+04 Time on this stage: 4.42000 seconds Added 65 Constraints in this stage 6 at iteration 26 Number of each type: 40 0 12 13 We now have 1349 Constraints. We now have 6149 Variables We now have 8005 Nonzeroes Upper and lower bounds: -0.11020000D+04 -0.11084143D+04 Time on this stage: 8.47000 seconds Added 60 Constraints in this stage 7 at iteration 36 Number of each type: 40 0 9 11 We now have 1409 Constraints. We now have 6209 Variables We now have 9015 Nonzeroes Upper and lower bounds: -0.11020000D+04 -0.11084143D+04 Time on this stage: 12.9700 seconds Last stage took 9.99000 seconds Done! Found a cut with value -1104.0000000000 The corresponding dual objective was -1105.8318685044 The energy is -1.3800000000000 Added 1409 Constraints in 7 Stages At the end, M and N were 1409 6209 Number of fixed edges: 0 1156 of 1409 constraints were tight There were 3081 Fractional Variables Checking squares required 0.190002 seconds Checking triangles required 0. seconds BFS routine required 2.43000 seconds in 3 stages Barahona-Mahjoub required 4.80000 seconds in 2 stages PSOL required 27.1100 seconds Fixing variables required 5.99976E-02 seconds Dropping variables required 4.00047E-02 seconds Finished! Used 46 Total Iterations Used 56.2200 seconds (CPU) PDSTEP used 19.7100 seconds EVAL used 35.3700 seconds