Trace number 198557

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 0.659899 0.710863

DiagnosticValue
CHECKS1739
NODES136

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)

0.30	   
0.30	Abscon 109 (November, 2006)
0.30	   
0.30	   configuration
0.30	     name=mac.xml
0.33	   
0.33	   instance
0.33	     name=/tmp/evaluation/198557-1168071266/unknown.xml
0.36	   
0.36	   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=0.09  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... 
0.61	       =>  wckTime=0.313  cpuTime=0.24  mem=13M321
0.61	   
0.61	   preprocessing
0.61	     nbConstraintChecks=0  nbPropagations=6  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
0.62	     detectedInconsistency=no
0.62	       =>  wckTime=0.0010  cpuTime=0.0  mem=13M321
0.63	   
0.63	   search
0.63	     run=0  nbConstraintChecks=334  nbPropagations=113  nbRevisions=146  nbUselessRevisions=24  nbAssignments=21
0.63	     nbFailedAssignments=10  nbBacktracks=10  nbVisitedNodes=42  nbRestartNogoods=0  mapSize=10  nbInferences=0
0.63	     nbTooLargeKeys=0
0.63	       =>  wckTime=0.014  cpuTime=0.01  mem=13M321
0.64	   
0.64	   search
0.64	     run=1  nbConstraintChecks=652  nbPropagations=349  nbRevisions=423  nbUselessRevisions=54  nbAssignments=48
0.64	     nbFailedAssignments=21  nbBacktracks=25  nbVisitedNodes=92  nbRestartNogoods=4  mapSize=25  nbInferences=1
0.64	     nbTooLargeKeys=0
0.64	       =>  wckTime=0.027  cpuTime=0.02  mem=13M321
0.65	   
0.65	   search
0.65	     run=2  nbConstraintChecks=1118  nbPropagations=772  nbRevisions=884  nbUselessRevisions=85  nbAssignments=89
0.65	     nbFailedAssignments=37  nbBacktracks=47  nbVisitedNodes=166  nbRestartNogoods=4  mapSize=47  nbInferences=2
0.65	     nbTooLargeKeys=0
0.65	       =>  wckTime=0.037  cpuTime=0.03  mem=13M321
0.66	   
0.66	   search
0.66	     run=3  nbConstraintChecks=1739  nbPropagations=1408  nbRevisions=1567  nbUselessRevisions=135  nbAssignments=136
0.66	     nbFailedAssignments=49  nbBacktracks=71  nbVisitedNodes=247  nbRestartNogoods=7  mapSize=69  nbInferences=14
0.66	     nbTooLargeKeys=0
0.66	       =>  wckTime=0.046  cpuTime=0.03  mem=13M321
0.66	   
0.66	   global
0.66	     nbConstraintChecks=1739  nbPropagations=1414  nbRevisions=1567  nbUselessRevisions=135  nbRestartNogoods=7
0.66	     solvingWckTime=0.048  solvingCpuTime=0.03  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.66	     globalCpuTime=0.32
0.66	       =>  wckTime=0.362  cpuTime=0.27  mem=13M321
0.66	   
0.66	s UNSATISFIABLE
0.66	d NODES 136
0.66	d CHECKS 1739
0.66	   
0.66	   totalWckTime=0.438  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/node41/watcher-198557-1168071266 -o ROOT/results/node41/solver-198557-1168071266 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/198557-1168071266/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: 0.99 1.00 1.10 4/80 6495
/proc/meminfo: memFree=1634968/2055920 swapFree=4192812/4192956
[pid=6494] ppid=6492 vsize=18540 CPUtime=0
/proc/6494/stat : 6494 (runsolver) R 6492 6494 6266 0 -1 4194368 17 0 0 0 0 0 0 0 19 0 1 0 155526300 18984960 279 18446744073709551615 4194304 4267372 548682068960 18446744073709551615 238390144295 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/6494/statm: 4635 279 244 17 0 2626 0

[startup+0.107405 s]
/proc/loadavg: 0.99 1.00 1.10 4/80 6495
/proc/meminfo: memFree=1634968/2055920 swapFree=4192812/4192956
[pid=6494] ppid=6492 vsize=914988 CPUtime=0.08
/proc/6494/stat : 6494 (java) R 6492 6494 6266 0 -1 0 3047 0 1 0 7 1 0 0 25 0 8 0 155526300 936947712 2793 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4155477080 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/6494/statm: 228747 2793 1445 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.515442 s]
/proc/loadavg: 0.99 1.00 1.10 4/80 6495
/proc/meminfo: memFree=1634968/2055920 swapFree=4192812/4192956
[pid=6494] ppid=6492 vsize=915444 CPUtime=0.49
/proc/6494/stat : 6494 (java) R 6492 6494 6266 0 -1 0 6789 0 1 0 45 4 0 0 25 0 8 0 155526300 937414656 6527 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/6494/statm: 228861 6527 2483 14 0 215331 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915444

Child status: 0
Real time (s): 0.710863
CPU time (s): 0.659899
CPU user time (s): 0.602908
CPU system time (s): 0.056991
CPU usage (%): 92.8307
Max. virtual memory (cumulated for all children) (KiB): 915444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.602908
system time used= 0.056991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8338
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= 597
involuntary context switches= 679

runsolver used 0.003999 s user time and 0.003999 s system time

The end

Launcher Data (download as text)

Begin job on node41 on Sat Jan  6 08:14:27 UTC 2007


IDJOB= 198557
IDBENCH= 3563
FILE ID= node41/198557-1168071266

PBS_JOBID= 3475951

Free space on /tmp= 66529 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 mac.xml 1 XSax /tmp/evaluation/198557-1168071266/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-198557-1168071266 -o ROOT/results/node41/solver-198557-1168071266 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/198557-1168071266/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  1f7af325a2695ae9a053bf495273d68b

RANDOM SEED= 590186371

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		: 3000.234
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		: 3000.234
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:       1635640 kB
Buffers:         32504 kB
Cached:         262072 kB
SwapCached:          0 kB
Active:          86828 kB
Inactive:       257944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1635640 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1768 kB
Writeback:           0 kB
Mapped:          70424 kB
Slab:            60812 kB
Committed_AS:  3316680 kB
PageTables:       1984 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= 66529 MiB



End job on node41 on Sat Jan  6 08:14:32 UTC 2007