Trace number 199211

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 ESACUNSAT 2.28265 2.33091

DiagnosticValue
CHECKS29334589
NODES0

General information on the benchmark

Nameknights/
knights-25-9.xml
MD5SUMff6db571c9963ef273115b40e7595a31
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 benchmark2.28265
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables9
Number of constraints36
Maximum constraint arity2
Maximum domain size625
Number of constraints which are defined in extension0
Number of constraints which are defined in intension36
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=esac.xml
0.34	   
0.34	   instance
0.34	     name=/tmp/evaluation/199211-1168132958/unknown.xml
0.38	   
0.38	   domains being loaded...
0.38	   
0.38	   variables being loaded...
0.41	     nbVariables=9  nbDomainTypes=1  minDomainSize=625  maxDomainSize=625
0.41	       =>  wckTime=0.098  cpuTime=0.08  mem=6M951
0.41	   
0.41	   predicates being loaded...
0.42	   
0.42	   constraints being loaded...
1.00	     nbConstraints=36  nbConvertedConstraints=36  nbConvertConstraintsChecks=781250  nbExtensionStructures=2
1.00	     nbSharedExtensionStructures=34  nbConflictsStructures=2  nbSharedConflictsStructures=34
1.00	     nbSharedBinaryRepresentations=1250  maxDegree=8  maxArity=2
1.00	       =>  wckTime=0.681  cpuTime=0.64  mem=8M902
1.03	   
1.03	   solver IterativeSystematicSolver being built... 
1.20	       =>  wckTime=0.884  cpuTime=0.77  mem=13M529
2.29	   
2.29	   preprocessing
2.29	     nbConstraintChecks=29334589  nbPropagations=11838  nbRevisions=25362  nbUselessRevisions=8303  nbSingletonTests=935
2.29	     nbEffectiveSingletonTests=935  nbESACBranches=0  nbRemovedValues=5522  detectedInconsistency=yes
2.29	       =>  wckTime=1.092  cpuTime=1.06  mem=14M505
2.29	   
2.29	   global
2.29	     nbConstraintChecks=29334589  nbPropagations=11838  nbRevisions=25362  nbUselessRevisions=8303  nbRestartNogoods=0
2.29	     solvingWckTime=1.093  solvingCpuTime=1.06  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
2.29	     globalCpuTime=1.89
2.29	       =>  wckTime=1.979  cpuTime=1.84  mem=14M505
2.30	   
2.30	s UNSATISFIABLE
2.30	d NODES 0
2.30	d CHECKS 29334589
2.30	   
2.30	   totalWckTime=2.06  totalCpuTime=1.89

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/node42/watcher-199211-1168132958 -o ROOT/results/node42/solver-199211-1168132958 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/199211-1168132958/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: 1.92 1.49 1.60 5/80 6981
/proc/meminfo: memFree=1895384/2055920 swapFree=4191892/4192956
[pid=6980] ppid=6978 vsize=18540 CPUtime=0
/proc/6980/stat : 6980 (runsolver) R 6978 6980 6767 0 -1 4194368 17 0 0 0 0 0 0 0 19 0 1 0 161695052 18984960 279 18446744073709551615 4194304 4267372 548682068960 18446744073709551615 259415141671 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/6980/statm: 4635 279 244 17 0 2626 0

[startup+0.102825 s]
/proc/loadavg: 1.92 1.49 1.60 5/80 6981
/proc/meminfo: memFree=1895384/2055920 swapFree=4191892/4192956
[pid=6980] ppid=6978 vsize=914988 CPUtime=0.08
/proc/6980/stat : 6980 (java) R 6978 6980 6767 0 -1 0 2959 0 1 0 7 1 0 0 19 0 8 0 161695052 936947712 2705 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 12371033 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/6980/statm: 228747 2705 1416 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.510868 s]
/proc/loadavg: 1.92 1.49 1.60 5/80 6981
/proc/meminfo: memFree=1895384/2055920 swapFree=4191892/4192956
[pid=6980] ppid=6978 vsize=915328 CPUtime=0.49
/proc/6980/stat : 6980 (java) R 6978 6980 6767 0 -1 0 6477 0 1 0 45 4 0 0 18 0 8 0 161695052 937295872 6216 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4073580386 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/6980/statm: 228832 6216 2165 14 0 215302 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915328

[startup+1.33196 s]
/proc/loadavg: 1.92 1.49 1.60 4/87 6988
/proc/meminfo: memFree=1877536/2055920 swapFree=4191892/4192956
[pid=6980] ppid=6978 vsize=915452 CPUtime=1.3
/proc/6980/stat : 6980 (java) R 6978 6980 6767 0 -1 0 8388 0 1 0 125 5 0 0 25 0 8 0 161695052 937422848 8126 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4073696122 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/6980/statm: 228863 8126 2540 14 0 215333 0
[pid=6980/tid=6982] ppid=6978 vsize=915452 CPUtime=0.02
/proc/6980/task/6982/stat : 6982 (java) S 6978 6980 6767 0 -1 64 185 0 0 0 2 0 0 0 17 0 8 0 161695056 937422848 8126 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=6980/tid=6983] ppid=6978 vsize=915452 CPUtime=0
/proc/6980/task/6983/stat : 6983 (java) S 6978 6980 6767 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 161695056 937422848 8126 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=6980/tid=6984] ppid=6978 vsize=915452 CPUtime=0
/proc/6980/task/6984/stat : 6984 (java) S 6978 6980 6767 0 -1 64 5 0 0 0 0 0 0 0 16 0 8 0 161695056 937422848 8126 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=6980/tid=6985] ppid=6978 vsize=915452 CPUtime=0
/proc/6980/task/6985/stat : 6985 (java) S 6978 6980 6767 0 -1 64 1 0 0 0 0 0 0 0 18 0 8 0 161695060 937422848 8126 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=6980/tid=6986] ppid=6978 vsize=915452 CPUtime=0.12
/proc/6980/task/6986/stat : 6986 (java) S 6978 6980 6767 0 -1 64 337 0 0 0 12 0 0 0 15 0 8 0 161695060 937422848 8126 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=6980/tid=6987] ppid=6978 vsize=915452 CPUtime=0
/proc/6980/task/6987/stat : 6987 (java) S 6978 6980 6767 0 -1 64 0 0 0 0 0 0 0 0 19 0 8 0 161695060 937422848 8126 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=6980/tid=6988] ppid=6978 vsize=915452 CPUtime=0
/proc/6980/task/6988/stat : 6988 (java) S 6978 6980 6767 0 -1 64 0 0 0 0 0 0 0 0 15 0 8 0 161695060 937422848 8126 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 915452

Child status: 0
Real time (s): 2.33091
CPU time (s): 2.28265
CPU user time (s): 2.21266
CPU system time (s): 0.069989
CPU usage (%): 97.9297
Max. virtual memory (cumulated for all children) (KiB): 915452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.21266
system time used= 0.069989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8488
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= 889
involuntary context switches= 903

runsolver used 0.007998 s user time and 0.011998 s system time

The end

Launcher Data (download as text)

Begin job on node42 on Sun Jan  7 01:22:38 UTC 2007


IDJOB= 199211
IDBENCH= 3600
FILE ID= node42/199211-1168132958

PBS_JOBID= 3477995

Free space on /tmp= 66542 MiB

BENCH NAME= HOME/pub/bench/CPAI06/knights/knights-25-9.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/199211-1168132958/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node42/watcher-199211-1168132958 -o ROOT/results/node42/solver-199211-1168132958 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/199211-1168132958/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  ff6db571c9963ef273115b40e7595a31

RANDOM SEED= 418980486

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		: 3000.229
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		: 3000.229
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:       1895800 kB
Buffers:         14708 kB
Cached:          50308 kB
SwapCached:        400 kB
Active:          78312 kB
Inactive:        33328 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1895800 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            1644 kB
Writeback:           0 kB
Mapped:          65504 kB
Slab:            33892 kB
Committed_AS:  3784636 kB
PageTables:       1880 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= 66542 MiB



End job on node42 on Sun Jan  7 01:22:41 UTC 2007