Trace number 200316

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 1.26981 1.3259

DiagnosticValue
CHECKS6675749
NODES0

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)

0.28	   
0.28	Abscon 109 (November, 2006)
0.28	   
0.28	   configuration
0.28	     name=esac.xml
0.31	   
0.31	   instance
0.31	     name=/tmp/evaluation/200316-1168142114/unknown.xml
0.34	   
0.34	   domains being loaded...
0.35	   
0.35	   variables being loaded...
0.38	     nbVariables=25  nbDomainTypes=2  minDomainSize=20  maxDomainSize=400
0.38	       =>  wckTime=0.094  cpuTime=0.08  mem=6M951
0.38	   
0.38	   predicates being loaded...
0.39	   
0.39	   constraints being loaded...
0.82	     nbConstraints=300  nbConvertedConstraints=300  nbConvertConstraintsChecks=487600  nbExtensionStructures=41
0.82	     nbSharedExtensionStructures=259  nbConflictsStructures=41  nbSharedConflictsStructures=259
0.82	     nbSharedBinaryRepresentations=9716  maxDegree=24  maxArity=2
0.82	       =>  wckTime=0.534  cpuTime=0.46  mem=10M852
0.85	   
0.85	   solver IterativeSystematicSolver being built... 
1.01	       =>  wckTime=0.721  cpuTime=0.59  mem=13M714
1.27	   
1.27	   preprocessing
1.27	     nbConstraintChecks=6675749  nbPropagations=4374  nbRevisions=14992  nbUselessRevisions=9763  nbSingletonTests=443
1.27	     nbEffectiveSingletonTests=399  nbESACBranches=4  nbRemovedValues=1987  detectedInconsistency=yes
1.27	       =>  wckTime=0.259  cpuTime=0.22  mem=13M714
1.27	   
1.27	   global
1.27	     nbConstraintChecks=6675749  nbPropagations=4374  nbRevisions=14992  nbUselessRevisions=9763  nbRestartNogoods=0
1.27	     solvingWckTime=0.26  solvingCpuTime=0.23  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
1.27	     globalCpuTime=0.88
1.27	       =>  wckTime=0.983  cpuTime=0.82  mem=13M714
1.27	   
1.27	s UNSATISFIABLE
1.27	d NODES 0
1.27	d CHECKS 6675749
1.27	   
1.27	   totalWckTime=1.059  totalCpuTime=0.88

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-200316-1168142114 -o ROOT/results/node42/solver-200316-1168142114 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/200316-1168142114/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 1.98 2.04 4/81 11179
/proc/meminfo: memFree=1796464/2055920 swapFree=4191892/4192956
[pid=11178] ppid=11176 vsize=1788 CPUtime=0
/proc/11178/stat : 11178 (java) R 11176 11178 7742 0 -1 0 355 0 0 0 0 0 0 0 18 0 1 0 162610701 1830912 149 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/11178/statm: 446 158 123 14 0 91 0

[startup+0.10664 s]
/proc/loadavg: 1.92 1.98 2.04 4/81 11179
/proc/meminfo: memFree=1796464/2055920 swapFree=4191892/4192956
[pid=11178] ppid=11176 vsize=914988 CPUtime=0.09
/proc/11178/stat : 11178 (java) R 11176 11178 7742 0 -1 0 3118 0 1 0 8 1 0 0 22 0 8 0 162610701 936947712 2864 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/11178/statm: 228747 2865 1469 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.514681 s]
/proc/loadavg: 1.92 1.98 2.04 4/81 11179
/proc/meminfo: memFree=1796464/2055920 swapFree=4191892/4192956
[pid=11178] ppid=11176 vsize=915464 CPUtime=0.49
/proc/11178/stat : 11178 (java) R 11176 11178 7742 0 -1 0 6825 0 1 0 47 2 0 0 25 0 8 0 162610701 937435136 6564 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/11178/statm: 228865 6564 2166 14 0 215335 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915464

Child status: 0
Real time (s): 1.3259
CPU time (s): 1.26981
CPU user time (s): 1.19682
CPU system time (s): 0.072988
CPU usage (%): 95.7694
Max. virtual memory (cumulated for all children) (KiB): 915464

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.19682
system time used= 0.072988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8512
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= 934
involuntary context switches= 963

runsolver used 0.005999 s user time and 0.011998 s system time

The end

Launcher Data (download as text)

Begin job on node42 on Sun Jan  7 03:55:14 UTC 2007


IDJOB= 200316
IDBENCH= 3701
FILE ID= node42/200316-1168142114

PBS_JOBID= 3478059

Free space on /tmp= 66557 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 esac.xml 1 XSax /tmp/evaluation/200316-1168142114/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node42/watcher-200316-1168142114 -o ROOT/results/node42/solver-200316-1168142114 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/200316-1168142114/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  da4256ae01633c1c4b30ed940167fe93

RANDOM SEED= 546808058

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:       1796880 kB
Buffers:         23216 kB
Cached:         138020 kB
SwapCached:        400 kB
Active:         123208 kB
Inactive:        77276 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1796880 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            1888 kB
Writeback:           0 kB
Mapped:          55980 kB
Slab:            43676 kB
Committed_AS:  3044568 kB
PageTables:       1892 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= 66557 MiB



End job on node42 on Sun Jan  7 03:55:16 UTC 2007