Trace number 198556

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 0.661898 0.707621

DiagnosticValue
CHECKS1913
NODES142

General information on the benchmark

Namepigeons/
pigeons-6.xml
MD5SUM1f7af325a2695ae9a053bf495273d68b
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 benchmark0.010997
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables6
Number of constraints15
Maximum constraint arity2
Maximum domain size5
Number of constraints which are defined in extension0
Number of constraints which are defined in intension15
Global constraints used (with number of constraints)

Solver Data (download as text)

0.29	   
0.29	Abscon 109 (November, 2006)
0.29	   
0.29	   configuration
0.29	     name=esac.xml
0.32	   
0.32	   instance
0.33	     name=/tmp/evaluation/198556-1168129790/unknown.xml
0.35	   
0.35	   domains being loaded...
0.36	   
0.36	   variables being loaded...
0.39	     nbVariables=6  nbDomainTypes=1  minDomainSize=5  maxDomainSize=5
0.39	       =>  wckTime=0.09  cpuTime=0.08  mem=6M951
0.39	   
0.39	   predicates being loaded...
0.39	   
0.39	   constraints being loaded...
0.43	     nbConstraints=15  nbConvertedConstraints=15  nbConvertConstraintsChecks=25  nbExtensionStructures=1
0.43	     nbSharedExtensionStructures=14  nbConflictsStructures=1  nbSharedConflictsStructures=14
0.43	     nbSharedBinaryRepresentations=5  maxDegree=5  maxArity=2
0.43	       =>  wckTime=0.131  cpuTime=0.12  mem=7M927
0.46	   
0.46	   solver IterativeSystematicSolver being built... 
0.62	       =>  wckTime=0.321  cpuTime=0.25  mem=13M258
0.62	   
0.62	   preprocessing
0.62	     nbConstraintChecks=110  nbPropagations=40  nbRevisions=30  nbUselessRevisions=0  nbSingletonTests=8
0.62	     nbEffectiveSingletonTests=0  nbESACBranches=2  nbRemovedValues=0  detectedInconsistency=no
0.62	       =>  wckTime=0.0040  cpuTime=0.0  mem=13M258
0.63	   
0.63	   search
0.63	     run=0  nbConstraintChecks=303  nbPropagations=147  nbRevisions=155  nbUselessRevisions=13  nbAssignments=22
0.63	     nbFailedAssignments=9  nbBacktracks=11  nbVisitedNodes=42  nbRestartNogoods=0  mapSize=11  nbInferences=1
0.63	     nbTooLargeKeys=0
0.63	       =>  wckTime=0.015  cpuTime=0.01  mem=14M299
0.65	   
0.65	   search
0.65	     run=1  nbConstraintChecks=610  nbPropagations=419  nbRevisions=433  nbUselessRevisions=26  nbAssignments=50
0.65	     nbFailedAssignments=20  nbBacktracks=27  nbVisitedNodes=93  nbRestartNogoods=4  mapSize=27  nbInferences=2
0.65	     nbTooLargeKeys=0
0.65	       =>  wckTime=0.029  cpuTime=0.02  mem=14M299
0.66	   
0.66	   search
0.66	     run=2  nbConstraintChecks=1130  nbPropagations=881  nbRevisions=923  nbUselessRevisions=55  nbAssignments=91
0.66	     nbFailedAssignments=37  nbBacktracks=49  nbVisitedNodes=168  nbRestartNogoods=4  mapSize=49  nbInferences=3
0.66	     nbTooLargeKeys=0
0.66	       =>  wckTime=0.037  cpuTime=0.02  mem=14M299
0.67	   
0.67	   search
0.67	     run=3  nbConstraintChecks=1803  nbPropagations=1572  nbRevisions=1678  nbUselessRevisions=105  nbAssignments=142
0.67	     nbFailedAssignments=57  nbBacktracks=77  nbVisitedNodes=258  nbRestartNogoods=7  mapSize=75  nbInferences=7
0.67	     nbTooLargeKeys=0
0.67	       =>  wckTime=0.047  cpuTime=0.03  mem=14M299
0.67	   
0.67	   global
0.67	     nbConstraintChecks=1913  nbPropagations=1612  nbRevisions=1708  nbUselessRevisions=105  nbRestartNogoods=7
0.67	     solvingWckTime=0.048  solvingCpuTime=0.03  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.67	     globalCpuTime=0.33
0.67	       =>  wckTime=0.371  cpuTime=0.29  mem=14M299
0.67	   
0.67	s UNSATISFIABLE
0.67	d NODES 142
0.67	d CHECKS 1913
0.67	   
0.67	   totalWckTime=0.446  totalCpuTime=0.33

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/node45/watcher-198556-1168129790 -o ROOT/results/node45/solver-198556-1168129790 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/198556-1168129790/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: 0.94 1.00 1.04 1/65 6325
/proc/meminfo: memFree=1619824/2055920 swapFree=4184048/4192956
[pid=6324] ppid=6322 vsize=168 CPUtime=0
/proc/6324/stat : 6324 (java) R 6322 6324 5553 0 -1 0 39 0 0 0 0 0 0 0 19 0 1 0 161377989 172032 23 18446744073709551615 134512640 134570532 4294956624 18446744073709551615 4727588 0 0 4096 0 0 0 0 17 1 0 0
/proc/6324/statm: 42 23 18 14 0 2 0

[startup+0.103132 s]
/proc/loadavg: 0.94 1.00 1.04 1/65 6325
/proc/meminfo: memFree=1619824/2055920 swapFree=4184048/4192956
[pid=6324] ppid=6322 vsize=914988 CPUtime=0.08
/proc/6324/stat : 6324 (java) R 6322 6324 5553 0 -1 0 3050 0 1 0 7 1 0 0 16 0 8 0 161377989 936947712 2796 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/6324/statm: 228747 2797 1447 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.515202 s]
/proc/loadavg: 0.94 1.00 1.04 1/65 6325
/proc/meminfo: memFree=1619824/2055920 swapFree=4184048/4192956
[pid=6324] ppid=6322 vsize=915444 CPUtime=0.48
/proc/6324/stat : 6324 (java) R 6322 6324 5553 0 -1 0 6798 0 1 0 45 3 0 0 16 0 8 0 161377989 937414656 6536 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/6324/statm: 228861 6536 2489 14 0 215331 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 915444

Child status: 0
Real time (s): 0.707621
CPU time (s): 0.661898
CPU user time (s): 0.605907
CPU system time (s): 0.055991
CPU usage (%): 93.5385
Max. virtual memory (cumulated for all children) (KiB): 915444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.605907
system time used= 0.055991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8431
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= 440
involuntary context switches= 68

runsolver used 0.004999 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node45 on Sun Jan  7 00:29:50 UTC 2007


IDJOB= 198556
IDBENCH= 3563
FILE ID= node45/198556-1168129790

PBS_JOBID= 3477661

Free space on /tmp= 66543 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pigeons/pigeons-6.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/198556-1168129790/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node45/watcher-198556-1168129790 -o ROOT/results/node45/solver-198556-1168129790 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/198556-1168129790/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  1f7af325a2695ae9a053bf495273d68b

RANDOM SEED= 70058465

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		: 3000.259
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		: 3000.259
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:       1620176 kB
Buffers:         23928 kB
Cached:         354252 kB
SwapCached:       3164 kB
Active:         183224 kB
Inactive:       205280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1620176 kB
SwapTotal:     4192956 kB
SwapFree:      4184048 kB
Dirty:            1696 kB
Writeback:           0 kB
Mapped:          15888 kB
Slab:            33280 kB
Committed_AS:  2935828 kB
PageTables:       1400 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= 66543 MiB



End job on node45 on Sun Jan  7 00:29:51 UTC 2007