Trace number 198573

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 0.816874 0.871277

DiagnosticValue
CHECKS40012
NODES3035

General information on the benchmark

Namepigeons/
pigeons-8.xml
MD5SUMb39aceb1c33f52b47385119bd97bf2b4
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 benchmark0.026995
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables8
Number of constraints28
Maximum constraint arity2
Maximum domain size7
Number of constraints which are defined in extension0
Number of constraints which are defined in intension28
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/198573-1168071268/unknown.xml
0.36	   
0.36	   domains being loaded...
0.36	   
0.36	   variables being loaded...
0.39	     nbVariables=8  nbDomainTypes=1  minDomainSize=7  maxDomainSize=7
0.39	       =>  wckTime=0.091  cpuTime=0.08  mem=6M951
0.39	   
0.39	   predicates being loaded...
0.39	   
0.39	   constraints being loaded...
0.44	     nbConstraints=28  nbConvertedConstraints=28  nbConvertConstraintsChecks=49  nbExtensionStructures=1
0.44	     nbSharedExtensionStructures=27  nbConflictsStructures=1  nbSharedConflictsStructures=27
0.44	     nbSharedBinaryRepresentations=7  maxDegree=7  maxArity=2
0.44	       =>  wckTime=0.141  cpuTime=0.12  mem=7M927
0.47	   
0.47	   solver IterativeSystematicSolver being built... 
0.62	       =>  wckTime=0.324  cpuTime=0.24  mem=13M345
0.62	   
0.62	   preprocessing
0.62	     nbConstraintChecks=0  nbPropagations=8  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
0.63	     detectedInconsistency=no
0.63	       =>  wckTime=0.0  cpuTime=0.0  mem=13M345
0.64	   
0.64	   search
0.64	     run=0  nbConstraintChecks=419  nbPropagations=130  nbRevisions=159  nbUselessRevisions=24  nbAssignments=23
0.64	     nbFailedAssignments=10  nbBacktracks=10  nbVisitedNodes=44  nbRestartNogoods=0  mapSize=10  nbInferences=0
0.64	     nbTooLargeKeys=0
0.64	       =>  wckTime=0.016  cpuTime=0.02  mem=13M345
0.65	   
0.65	   search
0.65	     run=1  nbConstraintChecks=963  nbPropagations=424  nbRevisions=529  nbUselessRevisions=79  nbAssignments=56
0.65	     nbFailedAssignments=24  nbBacktracks=25  nbVisitedNodes=105  nbRestartNogoods=4  mapSize=25  nbInferences=0
0.65	     nbTooLargeKeys=0
0.65	       =>  wckTime=0.03  cpuTime=0.02  mem=13M345
0.66	   
0.66	   search
0.66	     run=2  nbConstraintChecks=1574  nbPropagations=930  nbRevisions=1123  nbUselessRevisions=148  nbAssignments=101
0.66	     nbFailedAssignments=40  nbBacktracks=47  nbVisitedNodes=185  nbRestartNogoods=7  mapSize=47  nbInferences=3
0.66	     nbTooLargeKeys=0
0.66	       =>  wckTime=0.04  cpuTime=0.03  mem=13M345
0.67	   
0.67	   search
0.67	     run=3  nbConstraintChecks=2331  nbPropagations=1720  nbRevisions=1994  nbUselessRevisions=218  nbAssignments=163
0.67	     nbFailedAssignments=63  nbBacktracks=80  nbVisitedNodes=295  nbRestartNogoods=11  mapSize=80  nbInferences=5
0.67	     nbTooLargeKeys=0
0.67	       =>  wckTime=0.049  cpuTime=0.04  mem=13M345
0.69	   
0.69	   search
0.69	     run=4  nbConstraintChecks=3440  nbPropagations=2935  nbRevisions=3276  nbUselessRevisions=288  nbAssignments=256
0.69	     nbFailedAssignments=97  nbBacktracks=130  nbVisitedNodes=462  nbRestartNogoods=14  mapSize=130  nbInferences=11
0.69	     nbTooLargeKeys=0
0.69	       =>  wckTime=0.065  cpuTime=0.05  mem=13M345
0.71	   
0.71	   search
0.71	     run=5  nbConstraintChecks=5076  nbPropagations=4783  nbRevisions=5165  nbUselessRevisions=359  nbAssignments=395
0.71	     nbFailedAssignments=146  nbBacktracks=205  nbVisitedNodes=711  nbRestartNogoods=19  mapSize=205  nbInferences=23
0.71	     nbTooLargeKeys=0
0.71	       =>  wckTime=0.083  cpuTime=0.06  mem=13M345
0.72	   
0.72	   search
0.72	     run=6  nbConstraintChecks=7736  nbPropagations=7665  nbRevisions=8002  nbUselessRevisions=430  nbAssignments=619
0.72	     nbFailedAssignments=213  nbBacktracks=318  nbVisitedNodes=1111  nbRestartNogoods=21  mapSize=318  nbInferences=65
0.72	     nbTooLargeKeys=0
0.72	       =>  wckTime=0.1  cpuTime=0.07  mem=13M345
0.74	   
0.74	   search
0.74	     run=7  nbConstraintChecks=12006  nbPropagations=12205  nbRevisions=12317  nbUselessRevisions=501  nbAssignments=974
0.74	     nbFailedAssignments=307  nbBacktracks=488  nbVisitedNodes=1743  nbRestartNogoods=24  mapSize=488  nbInferences=154
0.74	     nbTooLargeKeys=0
0.74	       =>  wckTime=0.12  cpuTime=0.08  mem=13M345
0.78	   
0.78	   search
0.78	     run=8  nbConstraintChecks=20016  nbPropagations=19750  nbRevisions=19139  nbUselessRevisions=586
0.78	     nbAssignments=1604  nbFailedAssignments=413  nbBacktracks=744  nbVisitedNodes=2841  nbRestartNogoods=31
0.78	     mapSize=742  nbInferences=418  nbTooLargeKeys=0
0.78	       =>  wckTime=0.158  cpuTime=0.11  mem=13M345
0.81	   
0.81	   search
0.81	     run=9  nbConstraintChecks=33065  nbPropagations=31838  nbRevisions=29982  nbUselessRevisions=788
0.81	     nbAssignments=2553  nbFailedAssignments=595  nbBacktracks=1129  nbVisitedNodes=4481  nbRestartNogoods=37
0.81	     mapSize=1125  nbInferences=798  nbTooLargeKeys=0
0.81	       =>  wckTime=0.187  cpuTime=0.13  mem=13M345
0.82	   
0.82	   search
0.82	     run=10  nbConstraintChecks=40012  nbPropagations=46298  nbRevisions=42850  nbUselessRevisions=1035
0.82	     nbAssignments=3035  nbFailedAssignments=665  nbBacktracks=1315  nbVisitedNodes=5314  nbRestartNogoods=41
0.82	     mapSize=1308  nbInferences=1025  nbTooLargeKeys=0
0.82	       =>  wckTime=0.198  cpuTime=0.14  mem=13M345
0.82	   
0.82	   global
0.82	     nbConstraintChecks=40012  nbPropagations=46306  nbRevisions=42850  nbUselessRevisions=1035  nbRestartNogoods=41
0.82	     solvingWckTime=0.199  solvingCpuTime=0.14  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.82	     globalCpuTime=0.42
0.82	       =>  wckTime=0.525  cpuTime=0.38  mem=13M345
0.83	   
0.83	s UNSATISFIABLE
0.83	d NODES 3035
0.83	d CHECKS 40012
0.83	   
0.83	   totalWckTime=0.601  totalCpuTime=0.42

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/node10/watcher-198573-1168071268 -o ROOT/results/node10/solver-198573-1168071268 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/198573-1168071268/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: 1.32 1.79 1.84 3/93 27030
/proc/meminfo: memFree=1654744/2055920 swapFree=4178332/4192956
[pid=27029] ppid=27027 vsize=18540 CPUtime=0
/proc/27029/stat : 27029 (runsolver) R 27027 27029 26906 0 -1 4194368 17 0 0 0 0 0 0 0 20 0 1 0 155522318 18984960 279 18446744073709551615 4194304 4267372 548682068944 18446744073709551615 214919867687 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/27029/statm: 4635 279 244 17 0 2626 0

[startup+0.107612 s]
/proc/loadavg: 1.32 1.79 1.84 3/93 27030
/proc/meminfo: memFree=1654744/2055920 swapFree=4178332/4192956
[pid=27029] ppid=27027 vsize=914988 CPUtime=0.08
/proc/27029/stat : 27029 (java) R 27027 27029 26906 0 -1 0 3023 0 1 0 7 1 0 0 24 0 8 0 155522318 936947712 2769 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4160643169 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/27029/statm: 228747 2769 1436 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.517671 s]
/proc/loadavg: 1.32 1.79 1.84 3/93 27030
/proc/meminfo: memFree=1654744/2055920 swapFree=4178332/4192956
[pid=27029] ppid=27027 vsize=915444 CPUtime=0.49
/proc/27029/stat : 27029 (java) R 27027 27029 26906 0 -1 0 6799 0 1 0 46 3 0 0 25 0 8 0 155522318 937414656 6537 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4072929939 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/27029/statm: 228861 6537 2481 14 0 215331 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915444

Child status: 0
Real time (s): 0.871277
CPU time (s): 0.816874
CPU user time (s): 0.756884
CPU system time (s): 0.05999
CPU usage (%): 93.756
Max. virtual memory (cumulated for all children) (KiB): 915444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.756884
system time used= 0.05999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8413
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= 868
involuntary context switches= 1069

runsolver used 0.004999 s user time and 0.005999 s system time

The end

Launcher Data (download as text)

Begin job on node10 on Sat Jan  6 08:14:31 UTC 2007


IDJOB= 198573
IDBENCH= 3564
FILE ID= node10/198573-1168071268

PBS_JOBID= 3475733

Free space on /tmp= 66356 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pigeons/pigeons-8.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/198573-1168071268/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-198573-1168071268 -o ROOT/results/node10/solver-198573-1168071268 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/198573-1168071268/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  b39aceb1c33f52b47385119bd97bf2b4

RANDOM SEED= 192244142

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		: 3000.232
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		: 3000.232
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:       1655288 kB
Buffers:         45304 kB
Cached:         205100 kB
SwapCached:       2420 kB
Active:         113032 kB
Inactive:       199932 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1655288 kB
SwapTotal:     4192956 kB
SwapFree:      4178332 kB
Dirty:            1912 kB
Writeback:           0 kB
Mapped:          82132 kB
Slab:            72408 kB
Committed_AS:  4322144 kB
PageTables:       2320 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= 66356 MiB



End job on node10 on Sat Jan  6 08:14:35 UTC 2007