Trace number 200317

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
Abscon 109 ACUNSAT 2.72658 2.79499

DiagnosticValue
CHECKS48578764
NODES3459

General information on the benchmark

NamequeensKnights/
queensKnights-20-5-mul.xml
MD5SUMda4256ae01633c1c4b30ed940167fe93
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.26981
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables25
Number of constraints300
Maximum constraint arity2
Maximum domain size400
Number of constraints which are defined in extension0
Number of constraints which are defined in intension300
Global constraints used (with number of constraints)

Solver Data (download as text)

0.31	   
0.31	Abscon 109 (November, 2006)
0.31	   
0.31	   configuration
0.31	     name=mac.xml
0.34	   
0.34	   instance
0.34	     name=/tmp/evaluation/200317-1168072120/unknown.xml
0.37	   
0.37	   domains being loaded...
0.37	   
0.37	   variables being loaded...
0.41	     nbVariables=25  nbDomainTypes=2  minDomainSize=20  maxDomainSize=400
0.41	       =>  wckTime=0.1  cpuTime=0.08  mem=6M951
0.41	   
0.41	   predicates being loaded...
0.42	   
0.42	   constraints being loaded...
0.88	     nbConstraints=300  nbConvertedConstraints=300  nbConvertConstraintsChecks=487600  nbExtensionStructures=41
0.88	     nbSharedExtensionStructures=259  nbConflictsStructures=41  nbSharedConflictsStructures=259
0.88	     nbSharedBinaryRepresentations=9716  maxDegree=24  maxArity=2
0.88	       =>  wckTime=0.574  cpuTime=0.51  mem=10M852
0.92	   
0.92	   solver IterativeSystematicSolver being built... 
1.07	       =>  wckTime=0.765  cpuTime=0.63  mem=13M816
1.08	   
1.08	   preprocessing
1.08	     nbConstraintChecks=0  nbPropagations=25  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
1.08	     detectedInconsistency=no
1.08	       =>  wckTime=0.0040  cpuTime=0.01  mem=13M816
1.14	   
1.14	   search
1.14	     run=0  nbConstraintChecks=362216  nbPropagations=450  nbRevisions=1875  nbUselessRevisions=1033  nbAssignments=27
1.14	     nbFailedAssignments=8  nbBacktracks=10  nbVisitedNodes=44  nbRestartNogoods=0  mapSize=10  nbInferences=0
1.14	     nbTooLargeKeys=0
1.14	       =>  wckTime=0.062  cpuTime=0.04  mem=13M816
1.17	   
1.17	   search
1.17	     run=1  nbConstraintChecks=854495  nbPropagations=1389  nbRevisions=5760  nbUselessRevisions=3121  nbAssignments=64
1.17	     nbFailedAssignments=19  nbBacktracks=26  nbVisitedNodes=104  nbRestartNogoods=3  mapSize=26  nbInferences=0
1.17	     nbTooLargeKeys=0
1.17	       =>  wckTime=0.09  cpuTime=0.06  mem=13M816
1.62	   
1.62	   search
1.62	     run=2  nbConstraintChecks=13886904  nbPropagations=9051  nbRevisions=23040  nbUselessRevisions=9761
1.62	     nbAssignments=1048  nbFailedAssignments=967  nbBacktracks=53  nbVisitedNodes=2045  nbRestartNogoods=5  mapSize=41
1.62	     nbInferences=0  nbTooLargeKeys=0
1.62	       =>  wckTime=0.543  cpuTime=0.5  mem=13M816
1.82	   
1.82	   search
1.82	     run=3  nbConstraintChecks=19919212  nbPropagations=20045  nbRevisions=48213  nbUselessRevisions=19610
1.82	     nbAssignments=1483  nbFailedAssignments=1358  nbBacktracks=86  nbVisitedNodes=2890  nbRestartNogoods=6  mapSize=67
1.82	     nbInferences=0  nbTooLargeKeys=0
1.82	       =>  wckTime=0.738  cpuTime=0.69  mem=13M816
2.53	   
2.53	   search
2.53	     run=4  nbConstraintChecks=42044008  nbPropagations=42247  nbRevisions=95818  nbUselessRevisions=36976
2.53	     nbAssignments=3063  nbFailedAssignments=2876  nbBacktracks=139  nbVisitedNodes=6004  nbRestartNogoods=8  mapSize=94
2.53	     nbInferences=0  nbTooLargeKeys=0
2.53	       =>  wckTime=1.45  cpuTime=1.39  mem=13M816
2.73	   
2.73	   search
2.73	     run=5  nbConstraintChecks=48578764  nbPropagations=67554  nbRevisions=156535  nbUselessRevisions=63463
2.73	     nbAssignments=3459  nbFailedAssignments=3272  nbBacktracks=140  nbVisitedNodes=6796  nbRestartNogoods=9  mapSize=94
2.73	     nbInferences=0  nbTooLargeKeys=0
2.73	       =>  wckTime=1.655  cpuTime=1.59  mem=13M816
2.74	   
2.74	   global
2.74	     nbConstraintChecks=48578764  nbPropagations=67579  nbRevisions=156535  nbUselessRevisions=63463  nbRestartNogoods=9
2.74	     solvingWckTime=1.658  solvingCpuTime=1.59  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
2.74	     globalCpuTime=2.28
2.74	       =>  wckTime=2.426  cpuTime=2.22  mem=13M816
2.74	   
2.74	s UNSATISFIABLE
2.74	d NODES 3459
2.74	d CHECKS 48578764
2.74	   
2.74	   totalWckTime=2.506  totalCpuTime=2.28

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node33/watcher-200317-1168072120 -o ROOT/results/node33/solver-200317-1168072120 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/200317-1168072120/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 0.93 0.99 0.99 4/80 10138
/proc/meminfo: memFree=1100192/2055920 swapFree=4192224/4192956
[pid=10137] ppid=10135 vsize=18540 CPUtime=0
/proc/10137/stat : 10137 (runsolver) R 10135 10137 9965 0 -1 4194368 17 0 0 0 0 0 0 0 18 0 1 0 155605849 18984960 279 18446744073709551615 4194304 4267372 548682068960 18446744073709551615 210824129831 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/10137/statm: 4635 279 244 17 0 2626 0

[startup+0.109672 s]
/proc/loadavg: 0.93 0.99 0.99 4/80 10138
/proc/meminfo: memFree=1100192/2055920 swapFree=4192224/4192956
[pid=10137] ppid=10135 vsize=914988 CPUtime=0.09
/proc/10137/stat : 10137 (java) R 10135 10137 9965 0 -1 0 3057 0 1 0 8 1 0 0 20 0 8 0 155605849 936947712 2803 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4072942248 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/10137/statm: 228747 2803 1449 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.521757 s]
/proc/loadavg: 0.93 0.99 0.99 4/80 10138
/proc/meminfo: memFree=1100192/2055920 swapFree=4192224/4192956
[pid=10137] ppid=10135 vsize=915328 CPUtime=0.5
/proc/10137/stat : 10137 (java) R 10135 10137 9965 0 -1 0 6709 0 1 0 46 4 0 0 18 0 8 0 155605849 937295872 6448 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 11405062 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/10137/statm: 228832 6448 2150 14 0 215302 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 915328

[startup+1.34492 s]
/proc/loadavg: 0.93 0.99 0.99 3/87 10145
/proc/meminfo: memFree=1077360/2055920 swapFree=4192224/4192956
[pid=10137] ppid=10135 vsize=915460 CPUtime=1.32
/proc/10137/stat : 10137 (java) R 10135 10137 9965 0 -1 0 8423 0 1 0 126 6 0 0 25 0 8 0 155605849 937431040 8161 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4072925080 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/10137/statm: 228865 8161 2530 14 0 215335 0
[pid=10137/tid=10139] ppid=10135 vsize=915460 CPUtime=0.02
/proc/10137/task/10139/stat : 10139 (java) S 10135 10137 9965 0 -1 64 202 0 0 0 2 0 0 0 16 0 8 0 155605853 937431040 8161 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=10137/tid=10140] ppid=10135 vsize=915460 CPUtime=0
/proc/10137/task/10140/stat : 10140 (java) S 10135 10137 9965 0 -1 64 10 0 0 0 0 0 0 0 16 0 8 0 155605853 937431040 8161 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=10137/tid=10141] ppid=10135 vsize=915460 CPUtime=0
/proc/10137/task/10141/stat : 10141 (java) S 10135 10137 9965 0 -1 64 5 0 0 0 0 0 0 0 16 0 8 0 155605853 937431040 8161 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=10137/tid=10142] ppid=10135 vsize=915460 CPUtime=0
/proc/10137/task/10142/stat : 10142 (java) S 10135 10137 9965 0 -1 64 0 0 0 0 0 0 0 0 18 0 8 0 155605857 937431040 8161 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=10137/tid=10143] ppid=10135 vsize=915460 CPUtime=0.16
/proc/10137/task/10143/stat : 10143 (java) S 10135 10137 9965 0 -1 64 364 0 0 0 16 0 0 0 15 0 8 0 155605857 937431040 8161 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=10137/tid=10144] ppid=10135 vsize=915460 CPUtime=0
/proc/10137/task/10144/stat : 10144 (java) S 10135 10137 9965 0 -1 64 1 0 0 0 0 0 0 0 19 0 8 0 155605857 937431040 8161 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=10137/tid=10145] ppid=10135 vsize=915460 CPUtime=0
/proc/10137/task/10145/stat : 10145 (java) S 10135 10137 9965 0 -1 64 1 0 0 0 0 0 0 0 15 0 8 0 155605857 937431040 8161 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 915460

Child status: 0
Real time (s): 2.79499
CPU time (s): 2.72658
CPU user time (s): 2.6516
CPU system time (s): 0.074988
CPU usage (%): 97.5525
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.6516
system time used= 0.074988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8550
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= 1143
involuntary context switches= 1335

runsolver used 0.008998 s user time and 0.012998 s system time

The end

Launcher Data (download as text)

Begin job on node33 on Sat Jan  6 08:28:40 UTC 2007


IDJOB= 200317
IDBENCH= 3701
FILE ID= node33/200317-1168072120

PBS_JOBID= 3475967

Free space on /tmp= 66552 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-20-5-mul.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/200317-1168072120/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node33/watcher-200317-1168072120 -o ROOT/results/node33/solver-200317-1168072120 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/200317-1168072120/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  da4256ae01633c1c4b30ed940167fe93

RANDOM SEED= 619323898

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.281
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		: 3000.281
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:       1100672 kB
Buffers:         42580 kB
Cached:         745432 kB
SwapCached:        448 kB
Active:         170108 kB
Inactive:       701656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1100672 kB
SwapTotal:     4192956 kB
SwapFree:      4192224 kB
Dirty:            4340 kB
Writeback:           0 kB
Mapped:         102400 kB
Slab:            68736 kB
Committed_AS:  3440416 kB
PageTables:       1944 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= 66552 MiB



End job on node33 on Sat Jan  6 08:28:43 UTC 2007