0.02/0.08
0.02/0.08 Abscon 112 (May, 2008)
0.19/0.24
0.19/0.24 configuration
0.19/0.24 name=mac.xml
0.19/0.27
0.19/0.27 instance
0.19/0.27 name=HOME/instance-2098301-1247414334.xml
0.29/0.31
0.29/0.31 domains being loaded...
0.29/0.32
0.29/0.32 variables being loaded...
0.29/0.36 nbVariables=50 nbDomainTypes=48 minDomainSize=113 maxDomainSize=132 nbTotalValues=6180
0.29/0.36 => wckTime=0.115 cpuTime=0.1 mem=7M894
0.29/0.36
0.29/0.36 predicates being loaded...
0.39/0.42
0.39/0.42 constraints being loaded...
1.69/1.78 nbConstraints=270 nbGlobalConstraints=5 nbConvertedConstraints=265 nbConvertConstraintsChecks=4048974
1.69/1.78 nbExtensionStructures=265 nbSharedExtensionStructures=32 nbConflictsStructures=265
1.69/1.78 nbSharedConflictsStructures=32 nbSharedBinaryRepresentations=45840 minDegree=11 maxDegree=12 minArity=2
1.69/1.78 avgArity=2.15 maxArity=10 nbGenerators=0 nbFusions=0 symmetryWckTime=0.07 symmetryCpuTime=0.04 nbCliques=5
1.69/1.78 => wckTime=1.538 cpuTime=1.39 mem=21M605
1.78/1.85
1.78/1.85 solver IterativeSystematicSolver being built...
1.78/1.89
1.88/1.90 INFO : Forward propagation technique limited
1.88/1.96 => wckTime=1.715 cpuTime=1.5 mem=21M231
1.88/1.96
1.88/1.96 preprocessing
1.88/1.96 nbConstraintChecks=0 nbPropagations=50 nbRevisions=0 nbUselessRevisions=0 nbRemovedValues=0
1.88/1.96 detectedInconsistency=no
1.88/1.96 => wckTime=0.0070 cpuTime=0.01 mem=22M239
1.99/2.04
1.99/2.04 search
1.99/2.04 run=0 nbConstraintChecks=76584 minDepth=51 maxDepth=50 nbPropagations=495 nbRevisions=762
1.99/2.04 nbUselessRevisions=340 nbAssignments=50 nbFailedAssignments=0 nbBacktracks=0 nbVisitedNodes=51
1.99/2.04 nbRestartNogoods=0 nbFoundSolutions=1 mapSize=0 nbInferences=0 nbTooLargeKeys=0 nbSEliminables=0
1.99/2.04 nbREliminables=0.08 nbIEliminables=29.35 nbDEliminables=0 nbPEliminables=0
1.99/2.04 => wckTime=0.083 cpuTime=0.06 mem=23M214
1.99/2.04
1.99/2.04 global
1.99/2.04 nbConstraintChecks=76584 nbPropagations=545 nbRevisions=762 nbUselessRevisions=340 nbRestartNogoods=0
1.99/2.04 solvingWckTime=0.085 solvingCpuTime=0.06 expiredTime=no totalExploration=no nbFoundSolutions=1
1.99/2.04 firstSolutionCpuTime=1.55 globalCpuTime=1.6
1.99/2.04 => wckTime=1.801 cpuTime=1.56 mem=23M214
1.99/2.04
1.99/2.04 s SATISFIABLE
1.99/2.04 v 0 11 39 53 65 3 84 93 103 120 46 73 103 124 132 0 22 52 75 90 57 93 112 134 143 18 53 65 79 101 0 4 10 65 78 11 22 26 37 46 27 59 79 93 110 30 42 132 142 153
1.99/2.04 d NODES 50
1.99/2.04 d CHECKS 76584
1.99/2.04
1.99/2.04 totalWckTime=1.867 totalCpuTime=1.6
runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr
command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2098301-1247414334/watcher-2098301-1247414334 -o /tmp/evaluation-result-2098301-1247414334/solver-2098301-1247414334 -C 1800 -W 2000 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2098301-1247414334.xml
Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB
[startup+0 s]
/proc/loadavg: 2.00 2.02 2.00 4/80 30964
/proc/meminfo: memFree=1671392/2055920 swapFree=4192812/4192956
[pid=30964] ppid=30962 vsize=152 CPUtime=0
/proc/30964/stat : 30964 (java) R 30962 30964 28929 0 -1 0 205 0 0 0 0 0 0 0 18 0 1 0 28497440 155648 26 996147200 134512640 134550932 4294955968 18446744073709551615 12219172 0 0 4096 0 0 0 0 17 0 0 0
/proc/30964/statm: 38 26 19 9 0 4 0
[startup+0.0352069 s]
/proc/loadavg: 2.00 2.02 2.00 4/80 30964
/proc/meminfo: memFree=1671392/2055920 swapFree=4192812/4192956
[pid=30964] ppid=30962 vsize=861936 CPUtime=0.02
/proc/30964/stat : 30964 (java) S 30962 30964 28929 0 -1 0 2231 0 1 0 1 1 0 0 18 0 5 0 28497440 882622464 1848 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0
/proc/30964/statm: 215484 1849 848 9 0 210399 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 861936
[startup+0.102207 s]
/proc/loadavg: 2.00 2.02 2.00 4/80 30964
/proc/meminfo: memFree=1671392/2055920 swapFree=4192812/4192956
[pid=30964] ppid=30962 vsize=865980 CPUtime=0.09
/proc/30964/stat : 30964 (java) S 30962 30964 28929 0 -1 0 3811 0 1 0 7 2 0 0 18 0 9 0 28497440 886763520 3261 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/30964/statm: 216495 3265 1722 9 0 210980 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865980
[startup+0.302223 s]
/proc/loadavg: 2.00 2.02 2.00 4/80 30964
/proc/meminfo: memFree=1671392/2055920 swapFree=4192812/4192956
[pid=30964] ppid=30962 vsize=866380 CPUtime=0.29
/proc/30964/stat : 30964 (java) S 30962 30964 28929 0 -1 0 6091 0 1 0 26 3 0 0 18 0 9 0 28497440 887173120 5457 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/30964/statm: 216595 5458 1987 9 0 211053 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866380
[startup+0.702245 s]
/proc/loadavg: 2.00 2.02 2.00 4/80 30964
/proc/meminfo: memFree=1671392/2055920 swapFree=4192812/4192956
[pid=30964] ppid=30962 vsize=867180 CPUtime=0.68
/proc/30964/stat : 30964 (java) S 30962 30964 28929 0 -1 0 8220 0 1 0 64 4 0 0 18 0 9 0 28497440 887992320 7572 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/30964/statm: 216795 7572 2038 9 0 211231 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867180
[startup+1.50131 s]
/proc/loadavg: 2.00 2.02 2.00 3/89 30973
/proc/meminfo: memFree=1647064/2055920 swapFree=4192812/4192956
[pid=30964] ppid=30962 vsize=867180 CPUtime=1.48
/proc/30964/stat : 30964 (java) S 30962 30964 28929 0 -1 0 9339 0 1 0 143 5 0 0 18 0 9 0 28497440 887992320 8690 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/30964/statm: 216795 8690 2039 9 0 211231 0
[pid=30964/tid=30966] ppid=30962 vsize=867180 CPUtime=1.33
/proc/30964/task/30966/stat : 30966 (java) R 30962 30964 28929 0 -1 64 8118 0 1 0 128 5 0 0 25 0 9 0 28497441 887992320 8690 996147200 134512640 134550932 4294955968 18446744073709551615 4126727622 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30964/tid=30967] ppid=30962 vsize=867180 CPUtime=0
/proc/30964/task/30967/stat : 30967 (java) S 30962 30964 28929 0 -1 64 3 0 0 0 0 0 0 0 17 0 9 0 28497442 887992320 8690 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 0 0 0
[pid=30964/tid=30968] ppid=30962 vsize=867180 CPUtime=0
/proc/30964/task/30968/stat : 30968 (java) S 30962 30964 28929 0 -1 64 11 0 0 0 0 0 0 0 22 0 9 0 28497442 887992320 8690 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30964/tid=30969] ppid=30962 vsize=867180 CPUtime=0
/proc/30964/task/30969/stat : 30969 (java) S 30962 30964 28929 0 -1 64 4 0 0 0 0 0 0 0 23 0 9 0 28497442 887992320 8690 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30964/tid=30970] ppid=30962 vsize=867180 CPUtime=0
/proc/30964/task/30970/stat : 30970 (java) S 30962 30964 28929 0 -1 64 2 0 0 0 0 0 0 0 24 0 9 0 28497444 887992320 8690 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30964/tid=30971] ppid=30962 vsize=867180 CPUtime=0.14
/proc/30964/task/30971/stat : 30971 (java) S 30962 30964 28929 0 -1 64 523 0 0 0 14 0 0 0 16 0 9 0 28497444 887992320 8690 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30964/tid=30972] ppid=30962 vsize=867180 CPUtime=0
/proc/30964/task/30972/stat : 30972 (java) S 30962 30964 28929 0 -1 64 0 0 0 0 0 0 0 0 25 0 9 0 28497444 887992320 8690 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30964/tid=30973] ppid=30962 vsize=867180 CPUtime=0
/proc/30964/task/30973/stat : 30973 (java) S 30962 30964 28929 0 -1 64 0 0 0 0 0 0 0 0 15 0 9 0 28497444 887992320 8690 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 867180
Solver just ended. Dumping a history of the last processes samples
[startup+1.90133 s]
/proc/loadavg: 2.00 2.02 2.00 3/89 30973
/proc/meminfo: memFree=1647064/2055920 swapFree=4192812/4192956
[pid=30964] ppid=30962 vsize=868996 CPUtime=1.88
/proc/30964/stat : 30964 (java) S 30962 30964 28929 0 -1 0 15938 285 1 0 180 8 0 0 18 0 9 0 28497440 889851904 10767 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/30964/statm: 217249 10767 2654 9 0 211685 0
[pid=30964/tid=30966] ppid=30962 vsize=868996 CPUtime=1.62
/proc/30964/task/30966/stat : 30966 (java) R 30962 30964 28929 0 -1 64 10900 285 1 0 156 6 0 0 16 0 9 0 28497441 889851904 10767 996147200 134512640 134550932 4294955968 18446744073709551615 4126709731 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30964/tid=30967] ppid=30962 vsize=868996 CPUtime=0.05
/proc/30964/task/30967/stat : 30967 (java) S 30962 30964 28929 0 -1 64 3489 285 0 0 5 0 0 0 16 0 9 0 28497442 889851904 10767 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=30964/tid=30968] ppid=30962 vsize=868996 CPUtime=0
/proc/30964/task/30968/stat : 30968 (java) S 30962 30964 28929 0 -1 64 19 285 0 0 0 0 0 0 16 0 9 0 28497442 889851904 10767 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30964/tid=30969] ppid=30962 vsize=868996 CPUtime=0
/proc/30964/task/30969/stat : 30969 (java) S 30962 30964 28929 0 -1 64 11 285 0 0 0 0 0 0 16 0 9 0 28497442 889851904 10767 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30964/tid=30970] ppid=30962 vsize=868996 CPUtime=0
/proc/30964/task/30970/stat : 30970 (java) S 30962 30964 28929 0 -1 64 2 285 0 0 0 0 0 0 24 0 9 0 28497444 889851904 10767 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30964/tid=30971] ppid=30962 vsize=868996 CPUtime=0.18
/proc/30964/task/30971/stat : 30971 (java) R 30962 30964 28929 0 -1 64 716 285 0 0 18 0 0 0 16 0 9 0 28497444 889851904 10767 996147200 134512640 134550932 4294955968 18446744073709551615 102130657 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30964/tid=30972] ppid=30962 vsize=868996 CPUtime=0
/proc/30964/task/30972/stat : 30972 (java) S 30962 30964 28929 0 -1 64 0 285 0 0 0 0 0 0 25 0 9 0 28497444 889851904 10767 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30964/tid=30973] ppid=30962 vsize=868996 CPUtime=0
/proc/30964/task/30973/stat : 30973 (java) S 30962 30964 28929 0 -1 64 4 285 0 0 0 0 0 0 15 0 9 0 28497444 889851904 10767 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.88
Current children cumulated vsize (KiB) 868996
[startup+2.00134 s]
/proc/loadavg: 2.00 2.02 2.00 3/89 30973
/proc/meminfo: memFree=1647064/2055920 swapFree=4192812/4192956
[pid=30964] ppid=30962 vsize=868996 CPUtime=1.99
/proc/30964/stat : 30964 (java) S 30962 30964 28929 0 -1 0 17854 285 1 0 190 9 0 0 18 0 9 0 28497440 889851904 10994 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/30964/statm: 217249 10994 2658 9 0 211685 0
[pid=30964/tid=30966] ppid=30962 vsize=868996 CPUtime=1.71
/proc/30964/task/30966/stat : 30966 (java) R 30962 30964 28929 0 -1 64 12804 285 1 0 164 7 0 0 17 0 9 0 28497441 889851904 10994 996147200 134512640 134550932 4294955968 18446744073709551615 4125976484 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30964/tid=30967] ppid=30962 vsize=868996 CPUtime=0.05
/proc/30964/task/30967/stat : 30967 (java) S 30962 30964 28929 0 -1 64 3489 285 0 0 5 0 0 0 16 0 9 0 28497442 889851904 10994 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=30964/tid=30968] ppid=30962 vsize=868996 CPUtime=0
/proc/30964/task/30968/stat : 30968 (java) S 30962 30964 28929 0 -1 64 19 285 0 0 0 0 0 0 16 0 9 0 28497442 889851904 10994 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30964/tid=30969] ppid=30962 vsize=868996 CPUtime=0
/proc/30964/task/30969/stat : 30969 (java) S 30962 30964 28929 0 -1 64 11 285 0 0 0 0 0 0 16 0 9 0 28497442 889851904 10994 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30964/tid=30970] ppid=30962 vsize=868996 CPUtime=0
/proc/30964/task/30970/stat : 30970 (java) S 30962 30964 28929 0 -1 64 2 285 0 0 0 0 0 0 24 0 9 0 28497444 889851904 10994 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30964/tid=30971] ppid=30962 vsize=868996 CPUtime=0.2
/proc/30964/task/30971/stat : 30971 (java) S 30962 30964 28929 0 -1 64 728 285 0 0 20 0 0 0 16 0 9 0 28497444 889851904 10994 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30964/tid=30972] ppid=30962 vsize=868996 CPUtime=0
/proc/30964/task/30972/stat : 30972 (java) S 30962 30964 28929 0 -1 64 0 285 0 0 0 0 0 0 25 0 9 0 28497444 889851904 10994 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30964/tid=30973] ppid=30962 vsize=868996 CPUtime=0
/proc/30964/task/30973/stat : 30973 (java) S 30962 30964 28929 0 -1 64 4 285 0 0 0 0 0 0 15 0 9 0 28497444 889851904 10994 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.99
Current children cumulated vsize (KiB) 868996
Child status: 0
Real time (s): 2.08422
CPU time (s): 2.06469
CPU user time (s): 1.9547
CPU system time (s): 0.109983
CPU usage (%): 99.0625
Max. virtual memory (cumulated for all children) (KiB): 868996
getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9547
system time used= 0.109983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 18364
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1117
involuntary context switches= 1166
runsolver used 0.005999 second user time and 0.015997 second system time
The end
Begin job on node39 at 2009-07-12 17:58:54
IDJOB=2098301
IDBENCH=58560
IDSOLVER=773
FILE ID=node39/2098301-1247414334
PBS_JOBID= 9510566
Free space on /tmp= 66428 MiB
SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/jobShop-e0ddr2/normalized-e0ddr2-10-by-5-8.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2098301-1247414334/watcher-2098301-1247414334 -o /tmp/evaluation-result-2098301-1247414334/solver-2098301-1247414334 -C 1800 -W 2000 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2098301-1247414334.xml
TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0
MD5SUM BENCH= da9db23f5ede02b3ff6c2a743d786917
RANDOM SEED=106333986
node39.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005
/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 : 3000.236
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 : 3000.236
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: 1671872 kB
Buffers: 37560 kB
Cached: 105036 kB
SwapCached: 0 kB
Active: 264348 kB
Inactive: 54680 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 2055920 kB
LowFree: 1671872 kB
SwapTotal: 4192956 kB
SwapFree: 4192812 kB
Dirty: 2148 kB
Writeback: 0 kB
Mapped: 196872 kB
Slab: 50144 kB
Committed_AS: 995952 kB
PageTables: 2100 kB
VmallocTotal: 536870911 kB
VmallocUsed: 264952 kB
VmallocChunk: 536605679 kB
HugePages_Total: 0
HugePages_Free: 0
Hugepagesize: 2048 kB
Free space on /tmp at the end= 66428 MiB
End job on node39 at 2009-07-12 17:58:56