Trace number 230724

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 ESACSAT 0.98185 1.03576

DiagnosticValue
CHECKS187700
NODES140

General information on the benchmark

Namegeom/
geo50-20-d4-75-45_ext.xml
MD5SUM2c862d6f65a0a6a28fce429fe096088a
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.171973
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables50
Number of constraints400
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension400
Number of constraints which are defined in intension0
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/230724-1168317067/unknown.xml
0.37	   
0.37	   domains being loaded...
0.38	   
0.38	   variables being loaded...
0.42	     nbVariables=50  nbDomainTypes=1  minDomainSize=20  maxDomainSize=20
0.42	       =>  wckTime=0.102  cpuTime=0.09  mem=6M951
0.42	   
0.42	   relations being loaded...
0.54	   
0.54	   constraints being loaded...
0.65	     nbConstraints=400  nbRelationTypes=400  nbExtensionStructures=400  nbSharedExtensionStructures=0
0.65	     nbConflictsStructures=400  nbSharedConflictsStructures=0  nbSharedBinaryRepresentations=3734  maxDegree=26
0.65	     maxArity=2
0.65	       =>  wckTime=0.341  cpuTime=0.26  mem=13M794
0.70	   
0.70	   solver IterativeSystematicSolver being built... 
0.86	       =>  wckTime=0.546  cpuTime=0.39  mem=15M255
0.91	   
0.91	   preprocessing
0.91	     nbConstraintChecks=54279  nbPropagations=839  nbRevisions=5381  nbUselessRevisions=4319  nbSingletonTests=56
0.91	     nbEffectiveSingletonTests=0  nbESACBranches=6  nbRemovedValues=0  detectedInconsistency=no
0.91	       =>  wckTime=0.052  cpuTime=0.03  mem=15M255
0.94	   
0.94	   search
0.94	     run=0  nbConstraintChecks=33660  nbPropagations=1302  nbRevisions=10607  nbUselessRevisions=8638  nbAssignments=25
0.94	     nbFailedAssignments=8  nbBacktracks=10  nbVisitedNodes=41  nbRestartNogoods=0  mapSize=10  nbInferences=0
0.94	     nbTooLargeKeys=0
0.94	       =>  wckTime=0.077  cpuTime=0.05  mem=15M255
0.96	   
0.96	   search
0.96	     run=1  nbConstraintChecks=75847  nbPropagations=3182  nbRevisions=28187  nbUselessRevisions=22930  nbAssignments=57
0.96	     nbFailedAssignments=20  nbBacktracks=25  nbVisitedNodes=95  nbRestartNogoods=3  mapSize=24  nbInferences=0
0.96	     nbTooLargeKeys=0
0.96	       =>  wckTime=0.1  cpuTime=0.06  mem=15M255
0.98	   
0.98	   search
0.98	     run=2  nbConstraintChecks=133421  nbPropagations=5899  nbRevisions=55238  nbUselessRevisions=44803
0.98	     nbAssignments=140  nbFailedAssignments=34  nbBacktracks=44  nbVisitedNodes=206  nbRestartNogoods=5  mapSize=41
0.98	     nbInferences=0  nbTooLargeKeys=0
0.98	       =>  wckTime=0.116  cpuTime=0.08  mem=15M255
0.98	   
0.98	   global
0.98	     nbConstraintChecks=187700  nbPropagations=6738  nbRevisions=60619  nbUselessRevisions=49122  nbRestartNogoods=5
0.98	     solvingWckTime=0.117  solvingCpuTime=0.08  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.98	     globalCpuTime=0.51
0.98	       =>  wckTime=0.665  cpuTime=0.47  mem=15M255
0.98	   
0.98	s SATISFIABLE
0.98	v 11 14 17 14 9 1 15 11 20 5 6 4 6 16 5 17 11 3 5 15 13 3 15 3 20 9 5 8 16 3 8 20 16 18 4 10 5 9 7 20 16 20 7 11 12 14 12 1 17 19 
0.98	d NODES 140
0.98	d CHECKS 187700
0.98	   
0.98	   totalWckTime=0.746  totalCpuTime=0.51

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node17/watcher-230724-1168317067 -o ROOT/results/node17/solver-230724-1168317067 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/230724-1168317067/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: 1.43 1.61 1.75 4/94 32176
/proc/meminfo: memFree=1432328/2055920 swapFree=4192812/4192956
[pid=32175] ppid=32173 vsize=9948 CPUtime=0
/proc/32175/stat : 32175 (java) S 32173 32175 31999 0 -1 0 723 0 0 0 0 0 0 0 18 0 1 0 180101532 10186752 472 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 0 0 7368 0 0 0 17 1 0 0
/proc/32175/statm: 2487 472 386 14 0 1142 0

[startup+0.102788 s]
/proc/loadavg: 1.43 1.61 1.75 4/94 32176
/proc/meminfo: memFree=1432328/2055920 swapFree=4192812/4192956
[pid=32175] ppid=32173 vsize=914988 CPUtime=0.08
/proc/32175/stat : 32175 (java) R 32173 32175 31999 0 -1 0 2981 0 1 0 7 1 0 0 17 0 8 0 180101532 936947712 2727 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4072926600 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/32175/statm: 228747 2727 1423 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.510832 s]
/proc/loadavg: 1.43 1.61 1.75 4/94 32176
/proc/meminfo: memFree=1432328/2055920 swapFree=4192812/4192956
[pid=32175] ppid=32173 vsize=915328 CPUtime=0.49
/proc/32175/stat : 32175 (java) R 32173 32175 31999 0 -1 0 6814 0 1 0 45 4 0 0 18 0 8 0 180101532 937295872 6553 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/32175/statm: 228832 6553 2137 14 0 215302 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 1.03576
CPU time (s): 0.98185
CPU user time (s): 0.910861
CPU system time (s): 0.070989
CPU usage (%): 94.7953
Max. virtual memory (cumulated for all children) (KiB): 915456

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.910861
system time used= 0.070989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8813
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= 692
involuntary context switches= 734

runsolver used 0.002999 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node17 on Tue Jan  9 04:31:07 UTC 2007


IDJOB= 230724
IDBENCH= 6429
FILE ID= node17/230724-1168317067

PBS_JOBID= 3502547

Free space on /tmp= 66559 MiB

BENCH NAME= HOME/pub/bench/CPAI06/geom/geo50-20-d4-75-45_ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/230724-1168317067/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-230724-1168317067 -o ROOT/results/node17/solver-230724-1168317067 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/230724-1168317067/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  2c862d6f65a0a6a28fce429fe096088a

RANDOM SEED= 295858634

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		: 3000.236
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:       1432808 kB
Buffers:         88696 kB
Cached:         392268 kB
SwapCached:          0 kB
Active:         363528 kB
Inactive:       190388 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1432808 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1960 kB
Writeback:           0 kB
Mapped:          96088 kB
Slab:            53912 kB
Committed_AS:  5292128 kB
PageTables:       2348 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= 66559 MiB



End job on node17 on Tue Jan  9 04:31:11 UTC 2007