Solver Name | Answer | Objective function | CPU time | Wall clock time |
---|---|---|---|---|
SAT4JPSEUDO 2006.2 Heuristics | UNSAT | 32.655 | 31.0721 |
Name | normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/ miplib2003/normalized-mps-v2-20-10-momentum1.opb |
MD5SUM | 2a3bb2993a8527831120044b821e9eec |
Bench Category | OPT-BIGINT (optimisation, big integers) |
Best result obtained on this benchmark | UNSAT |
Best value of the objective obtained on this benchmark | |
Best CPU time to get the best result obtained on this benchmark | 6.43902 |
Has Objective Function | YES |
Satisfiable | NO |
(Un)Satisfiability was proved | YES |
Best value of the objective function | |
Optimality of the best value was proved | |
Number of variables | 41495 |
Total number of constraints | 40182 |
Number of constraints which are clauses | 24365 |
Number of constraints which are cardinality constraints (but not clauses) | 651 |
Number of constraints which are nor clauses,nor cardinality constraints | 15166 |
Minimum length of a constraint | 1 |
Maximum length of a constraint | 840 |
Number of terms in the objective function | 31027 |
Biggest coefficient in the objective function | 16384000000 |
Number of bits for the biggest coefficient in the objective function | 34 |
Sum of the numbers in the objective function | 1372391683575 |
Number of bits of the sum of numbers in the objective function | 41 |
Biggest number in a constraint | 536870912000000000000000 |
Number of bits of the biggest number in a constraint | 79 |
Biggest sum of numbers in a constraint | 1073792773951002021605255 |
Number of bits of the biggest sum of numbers | 80 |
Number of products (including duplicates) | 0 |
Sum of products size (including duplicates) | 0 |
Number of different products | 0 |
Sum of products size | 0 |
0.14 c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre 0.14 c This is free software under the GNU LGPL licence. See www.sat4j.org for details. 0.15 c no version file found!!! 0.15 c sun.arch.data.model 32 0.15 c java.version 1.5.0_06 0.15 c os.name Linux 0.15 c os.version 2.6.9-22.EL.rootsmp 0.15 c os.arch i386 0.15 c Free memory 1548419056 0.15 c Max memory 1551040512 0.15 c Total memory 1551040512 0.15 c Number of processors 2 0.22 c Cutting planes based inference 0.22 c --- Begin Solver configuration --- 0.22 c org.sat4j.minisat.uip.FirstUIP@1df073d 0.22 c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@1546e25 0.22 c org.sat4j.minisat.learning.MiniSATLearning@b66cc 0.22 c conflictBoundIncFactor=1.5 learntBoundIncFactor=1.1 initLearntBoundConstraintFactor=10000.0 initConflictBound=100 0.22 c VSIDS like heuristics from MiniSAT using a heap 0.22 c No reason simplification 0.22 c --- End Solver configuration --- 0.22 c solving ROOT/tmp/node31/43359-1149317410/instance-43359-1149317410.opb 0.22 c reading problem ... 31.02 c (trivial inconsistency) 31.02 c starts : 0 31.02 c conflicts : 0 31.02 c decisions : 0 31.02 c propagations : 0 31.02 c inspects : 0 31.02 c learnt literals : 0 31.02 c learnt binary clauses : 0 31.02 c learnt ternary clauses : 0 31.02 c learnt clauses : 0 31.02 c root simplifications : 0 31.02 c removed literals (reason simplification) : 0 31.02 c reason swapping (by a shorter reason) : 0 31.02 c Calls to reduceDB : 0 31.02 c speed (decisions/second) : 0.0 31.02 c non guided choices 0 31.02 s UNSATISFIABLE 31.02 c Total wall clock time (ms): 30.803
ERROR: no interpretation found !
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds Enforcing Stack size limit: 67108864 bytes Enforcing memory limit (will send SIGKILL): 1843200 Kb Enforcing VSIZE limit: 1887436800 bytes runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr command line: runsolver --timestamp -w ROOT/results/node31/watcher-43359-1149317410 -o ROOT/results/node31/solver-43359-1149317410 -C 1800 -M 1800 -S 64 java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node31/43359-1149317410/instance-43359-1149317410.opb 279743795 Current StackSize limit: 67108864 bytes /proc/loadavg: 0.85 0.97 0.93 3/64 4990 /proc/meminfo: memFree=1390032/2055920 swapFree=4181480/4192956 [pid=4990] ppid=4988 vsize=1784 CPUtime=0 /proc/4990/stat : 4990 (java) D 4988 4990 4944 0 -1 0 178 0 0 0 0 0 0 0 18 0 1 0 197404698 1826816 148 18446744073709551615 134512640 134570276 4294956608 18446744073709551615 4294960144 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0 /proc/4990/statm: 446 148 113 14 0 91 0 [startup+10.0021 s] /proc/loadavg: 0.87 0.97 0.93 2/75 5001 /proc/meminfo: memFree=1213688/2055920 swapFree=4181480/4192956 [pid=4990] ppid=4988 vsize=1712128 CPUtime=11.04 /proc/4990/stat : 4990 (java) R 4988 4990 4944 0 -1 0 49987 0 1 0 1081 23 0 0 25 0 12 0 197404698 1753219072 45817 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4152709490 0 4 0 23759 18446744073709551615 0 0 17 1 0 0 /proc/4990/statm: 428032 45817 1884 14 0 414779 0 [pid=4990/tid=4991] ppid=4988 vsize=1712128 CPUtime=0.35 /proc/4990/task/4991/stat : 4991 (java) S 4988 4990 4944 0 -1 64 4371 0 0 0 34 1 0 0 15 0 12 0 197404701 1753219072 45817 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4992] ppid=4988 vsize=1712128 CPUtime=0.38 /proc/4990/task/4992/stat : 4992 (java) S 4988 4990 4944 0 -1 64 5704 0 0 0 36 2 0 0 17 0 12 0 197404701 1753219072 45817 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0 [pid=4990/tid=4993] ppid=4988 vsize=1712128 CPUtime=0 /proc/4990/task/4993/stat : 4993 (java) S 4988 4990 4944 0 -1 64 28 0 0 0 0 0 0 0 17 0 12 0 197404703 1753219072 45817 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0 [pid=4990/tid=4994] ppid=4988 vsize=1712128 CPUtime=0 /proc/4990/task/4994/stat : 4994 (java) S 4988 4990 4944 0 -1 64 9 0 0 0 0 0 0 0 16 0 12 0 197404704 1753219072 45817 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4995] ppid=4988 vsize=1712128 CPUtime=0 /proc/4990/task/4995/stat : 4995 (java) S 4988 4990 4944 0 -1 64 5 0 0 0 0 0 0 0 16 0 12 0 197404704 1753219072 45817 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4996] ppid=4988 vsize=1712128 CPUtime=0 /proc/4990/task/4996/stat : 4996 (java) S 4988 4990 4944 0 -1 64 1 0 0 0 0 0 0 0 23 0 12 0 197404707 1753219072 45817 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4997] ppid=4988 vsize=1712128 CPUtime=0 /proc/4990/task/4997/stat : 4997 (java) S 4988 4990 4944 0 -1 64 3 0 0 0 0 0 0 0 16 0 12 0 197404707 1753219072 45817 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0 [pid=4990/tid=4998] ppid=4988 vsize=1712128 CPUtime=0.53 /proc/4990/task/4998/stat : 4998 (java) S 4988 4990 4944 0 -1 64 2072 0 0 0 53 0 0 0 17 0 12 0 197404707 1753219072 45817 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4999] ppid=4988 vsize=1712128 CPUtime=0.35 /proc/4990/task/4999/stat : 4999 (java) S 4988 4990 4944 0 -1 64 445 0 0 0 35 0 0 0 16 0 12 0 197404707 1753219072 45817 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0 [pid=4990/tid=5000] ppid=4988 vsize=1712128 CPUtime=0 /proc/4990/task/5000/stat : 5000 (java) S 4988 4990 4944 0 -1 64 1 0 0 0 0 0 0 0 24 0 12 0 197404707 1753219072 45817 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=5001] ppid=4988 vsize=1712128 CPUtime=0 /proc/4990/task/5001/stat : 5001 (java) S 4988 4990 4944 0 -1 64 2 0 0 0 0 0 0 0 15 0 12 0 197404707 1753219072 45817 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 Current children cumulated CPU time (s) 11.04 Current children cumulated vsize (Kb) 1712128 [startup+20.0089 s] /proc/loadavg: 0.89 0.97 0.93 2/75 5001 /proc/meminfo: memFree=1227832/2055920 swapFree=4181480/4192956 [pid=4990] ppid=4988 vsize=1711500 CPUtime=21.35 /proc/4990/stat : 4990 (java) R 4988 4990 4944 0 -1 0 51782 0 1 0 2111 24 0 0 23 0 12 0 197404698 1752576000 42356 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4152709490 0 4 0 23759 18446744073709551615 0 0 17 1 0 0 /proc/4990/statm: 427875 42356 1884 14 0 414622 0 [pid=4990/tid=4991] ppid=4988 vsize=1711500 CPUtime=0.43 /proc/4990/task/4991/stat : 4991 (java) S 4988 4990 4944 0 -1 64 5038 0 0 0 41 2 0 0 16 0 12 0 197404701 1752576000 42356 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4992] ppid=4988 vsize=1711500 CPUtime=0.44 /proc/4990/task/4992/stat : 4992 (java) S 4988 4990 4944 0 -1 64 6384 0 0 0 42 2 0 0 16 0 12 0 197404701 1752576000 42356 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0 [pid=4990/tid=4993] ppid=4988 vsize=1711500 CPUtime=0.02 /proc/4990/task/4993/stat : 4993 (java) S 4988 4990 4944 0 -1 64 42 0 0 0 1 1 0 0 15 0 12 0 197404703 1752576000 42356 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4994] ppid=4988 vsize=1711500 CPUtime=0 /proc/4990/task/4994/stat : 4994 (java) S 4988 4990 4944 0 -1 64 9 0 0 0 0 0 0 0 16 0 12 0 197404704 1752576000 42356 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4995] ppid=4988 vsize=1711500 CPUtime=0 /proc/4990/task/4995/stat : 4995 (java) S 4988 4990 4944 0 -1 64 5 0 0 0 0 0 0 0 16 0 12 0 197404704 1752576000 42356 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4996] ppid=4988 vsize=1711500 CPUtime=0 /proc/4990/task/4996/stat : 4996 (java) S 4988 4990 4944 0 -1 64 1 0 0 0 0 0 0 0 23 0 12 0 197404707 1752576000 42356 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4997] ppid=4988 vsize=1711500 CPUtime=0 /proc/4990/task/4997/stat : 4997 (java) S 4988 4990 4944 0 -1 64 3 0 0 0 0 0 0 0 17 0 12 0 197404707 1752576000 42356 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4998] ppid=4988 vsize=1711500 CPUtime=0.63 /proc/4990/task/4998/stat : 4998 (java) S 4988 4990 4944 0 -1 64 2170 0 0 0 63 0 0 0 17 0 12 0 197404707 1752576000 42356 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4999] ppid=4988 vsize=1711500 CPUtime=0.55 /proc/4990/task/4999/stat : 4999 (java) S 4988 4990 4944 0 -1 64 753 0 0 0 55 0 0 0 17 0 12 0 197404707 1752576000 42356 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0 [pid=4990/tid=5000] ppid=4988 vsize=1711500 CPUtime=0 /proc/4990/task/5000/stat : 5000 (java) S 4988 4990 4944 0 -1 64 1 0 0 0 0 0 0 0 24 0 12 0 197404707 1752576000 42356 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=5001] ppid=4988 vsize=1711500 CPUtime=0 /proc/4990/task/5001/stat : 5001 (java) S 4988 4990 4944 0 -1 64 2 0 0 0 0 0 0 0 15 0 12 0 197404707 1752576000 42356 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0 Current children cumulated CPU time (s) 21.35 Current children cumulated vsize (Kb) 1711500 [startup+30.0167 s] /proc/loadavg: 0.91 0.97 0.93 2/75 5001 /proc/meminfo: memFree=1167416/2055920 swapFree=4181480/4192956 [pid=4990] ppid=4988 vsize=1711160 CPUtime=31.58 /proc/4990/stat : 4990 (java) R 4988 4990 4944 0 -1 0 67946 0 1 0 3125 33 0 0 20 0 12 0 197404698 1752227840 57480 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4071333567 0 4 0 23759 18446744073709551615 0 0 17 1 0 0 /proc/4990/statm: 427790 57480 1886 14 0 414537 0 [pid=4990/tid=4991] ppid=4988 vsize=1711160 CPUtime=0.61 /proc/4990/task/4991/stat : 4991 (java) S 4988 4990 4944 0 -1 64 9002 0 0 0 57 4 0 0 16 0 12 0 197404701 1752227840 57480 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4992] ppid=4988 vsize=1711160 CPUtime=0.62 /proc/4990/task/4992/stat : 4992 (java) S 4988 4990 4944 0 -1 64 9590 0 0 0 59 3 0 0 16 0 12 0 197404701 1752227840 57480 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0 [pid=4990/tid=4993] ppid=4988 vsize=1711160 CPUtime=0.03 /proc/4990/task/4993/stat : 4993 (java) S 4988 4990 4944 0 -1 64 47 0 0 0 2 1 0 0 16 0 12 0 197404703 1752227840 57480 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0 [pid=4990/tid=4994] ppid=4988 vsize=1711160 CPUtime=0 /proc/4990/task/4994/stat : 4994 (java) S 4988 4990 4944 0 -1 64 9 0 0 0 0 0 0 0 16 0 12 0 197404704 1752227840 57480 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4995] ppid=4988 vsize=1711160 CPUtime=0 /proc/4990/task/4995/stat : 4995 (java) S 4988 4990 4944 0 -1 64 5 0 0 0 0 0 0 0 16 0 12 0 197404704 1752227840 57480 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4996] ppid=4988 vsize=1711160 CPUtime=0 /proc/4990/task/4996/stat : 4996 (java) S 4988 4990 4944 0 -1 64 1 0 0 0 0 0 0 0 23 0 12 0 197404707 1752227840 57480 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4997] ppid=4988 vsize=1711160 CPUtime=0 /proc/4990/task/4997/stat : 4997 (java) S 4988 4990 4944 0 -1 64 3 0 0 0 0 0 0 0 17 0 12 0 197404707 1752227840 57480 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=4998] ppid=4988 vsize=1711160 CPUtime=0.66 /proc/4990/task/4998/stat : 4998 (java) S 4988 4990 4944 0 -1 64 2170 0 0 0 66 0 0 0 15 0 12 0 197404707 1752227840 57480 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0 [pid=4990/tid=4999] ppid=4988 vsize=1711160 CPUtime=0.57 /proc/4990/task/4999/stat : 4999 (java) S 4988 4990 4944 0 -1 64 755 0 0 0 57 0 0 0 15 0 12 0 197404707 1752227840 57480 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0 [pid=4990/tid=5000] ppid=4988 vsize=1711160 CPUtime=0 /proc/4990/task/5000/stat : 5000 (java) S 4988 4990 4944 0 -1 64 1 0 0 0 0 0 0 0 24 0 12 0 197404707 1752227840 57480 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0 [pid=4990/tid=5001] ppid=4988 vsize=1711160 CPUtime=0 /proc/4990/task/5001/stat : 5001 (java) S 4988 4990 4944 0 -1 64 2 0 0 0 0 0 0 0 15 0 12 0 197404707 1752227840 57480 18446744073709551615 134512640 134570276 4294956448 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0 Current children cumulated CPU time (s) 31.58 Current children cumulated vsize (Kb) 1711160 Child status: 20 Real time (s): 31.0721 CPU time (s): 32.655 CPU user time (s): 32.2781 CPU system time (s): 0.376942 CPU usage (%): 105.095 Max. virtual memory (cumulated for all children) (Kb): 1712128
Begin job on node31 on Sat Jun 3 06:50:10 UTC 2006 FILE ID= 43359-1149317410 PBS_JOBID= 308428 BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-momentum1.opb COMMAND LINE= java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node31/43359-1149317410/instance-43359-1149317410.opb 279743795 RUNSOLVER COMMAND LINE= runsolver --timestamp -w ROOT/results/node31/watcher-43359-1149317410 -o ROOT/results/node31/solver-43359-1149317410 -C 1800 -M 1800 -S 64 java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node31/43359-1149317410/instance-43359-1149317410.opb 279743795 MD5SUM SOLVER= 3cef94aa015dc0dd234d31843a257d70 MD5SUM BENCH= 2a3bb2993a8527831120044b821e9eec RANDOM SEED= 279743795 /proc/cpuinfo: processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.00GHz stepping : 3 cpu MHz : 3000.234 cache size : 2048 KB fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr bogomips : 5914.62 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.00GHz stepping : 3 cpu MHz : 3000.234 cache size : 2048 KB fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr bogomips : 5586.94 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: /proc/meminfo: MemTotal: 2055920 kB MemFree: 1390240 kB Buffers: 31344 kB Cached: 560668 kB SwapCached: 3396 kB Active: 100836 kB Inactive: 500160 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 2055920 kB LowFree: 1390240 kB SwapTotal: 4192956 kB SwapFree: 4181480 kB Dirty: 160 kB Writeback: 0 kB Mapped: 14964 kB Slab: 50716 kB Committed_AS: 350092 kB PageTables: 1496 kB VmallocTotal: 536870911 kB VmallocUsed: 264952 kB VmallocChunk: 536605679 kB HugePages_Total: 0 HugePages_Free: 0 Hugepagesize: 2048 kB End job on node31 on Sat Jun 3 06:50:41 UTC 2006