Trace number 2094007

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 112v4 ACUNSAT 0.592909 0.630393

DiagnosticValue
CHECKS0
NODES0

General information on the benchmark

Namecsp/pigeons_glb/
normalized-pigeons-8_ext.xml
MD5SUM800b69643a65b2ea63633bdce35a7878
Bench CategoryAlldiff (alldiff)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.005998
Satisfiable
(Un)Satisfiability was proved
Number of variables8
Number of constraints1
Maximum constraint arity8
Maximum domain size7
Number of constraints which are defined in extension0
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)alldifferent(1)

Solver Data 

0.00/0.08	
0.00/0.08	Abscon 112 (May, 2008)
0.19/0.24	
0.19/0.24	   configuration
0.19/0.24	     name=mac.xml
0.19/0.27	   
0.19/0.27	   instance
0.19/0.27	     name=HOME/instance-2094007-1247402305.xml
0.29/0.30	   
0.29/0.31	   domains being loaded...
0.29/0.31	   
0.29/0.31	   variables being loaded...
0.29/0.34	     nbVariables=8  nbDomainTypes=1  minDomainSize=7  maxDomainSize=7  nbTotalValues=56
0.29/0.34	       =>  wckTime=0.098  cpuTime=0.09  mem=7M892
0.29/0.34	   
0.29/0.34	   constraints being loaded...
0.29/0.39	     nbConstraints=8  nbGlobalConstraints=8  nbSharedBinaryRepresentations=0  minDegree=2  maxDegree=3  minArity=2
0.29/0.39	     avgArity=2.75  maxArity=8  nbGenerators=7  nbFusions=0  symmetryWckTime=0.029  symmetryCpuTime=0.02
0.29/0.39	       =>  wckTime=0.145  cpuTime=0.12  mem=10M842
0.38/0.43	   
0.38/0.43	   solver IterativeSystematicSolver being built... 
0.48/0.51	   
0.48/0.51	   INFO : Forward propagation technique limited 
0.48/0.58	       =>  wckTime=0.34  cpuTime=0.25  mem=19M549
0.48/0.58	   
0.48/0.58	   preprocessing
0.48/0.58	     nbConstraintChecks=0  nbPropagations=1  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
0.48/0.58	     detectedInconsistency=yes
0.48/0.58	       =>  wckTime=0.0020  cpuTime=0.0  mem=19M549
0.48/0.59	   
0.48/0.59	   global
0.48/0.59	     nbConstraintChecks=0  nbPropagations=1  nbRestartNogoods=0  solvingWckTime=0.0040  solvingCpuTime=0.0
0.48/0.59	     expiredTime=no  totalExploration=yes  nbFoundSolutions=0  globalCpuTime=0.29
0.48/0.59	       =>  wckTime=0.345  cpuTime=0.25  mem=19M549
0.48/0.59	   
0.48/0.59	s UNSATISFIABLE
0.48/0.59	d NODES 0
0.48/0.59	d CHECKS 0
0.48/0.59	   
0.48/0.59	   totalWckTime=0.412  totalCpuTime=0.29

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2094007-1247402305/watcher-2094007-1247402305 -o /tmp/evaluation-result-2094007-1247402305/solver-2094007-1247402305 -C 1800 -W 2000 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2094007-1247402305.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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


[startup+0 s]
/proc/loadavg: 1.99 1.94 1.45 4/80 25735
/proc/meminfo: memFree=1805564/2055920 swapFree=4192812/4192956
[pid=25735] ppid=25733 vsize=152 CPUtime=0
/proc/25735/stat : 25735 (java) R 25733 25735 24991 0 -1 0 205 0 0 0 0 0 0 0 18 0 1 0 27297655 155648 26 996147200 134512640 134550932 4294955968 18446744073709551615 8663844 0 0 4096 0 0 0 0 17 0 0 0
/proc/25735/statm: 50 33 26 9 0 4 0

[startup+0.10336 s]
/proc/loadavg: 1.99 1.94 1.45 4/80 25735
/proc/meminfo: memFree=1805564/2055920 swapFree=4192812/4192956
[pid=25735] ppid=25733 vsize=865980 CPUtime=0.09
/proc/25735/stat : 25735 (java) S 25733 25735 24991 0 -1 0 3844 0 1 0 8 1 0 0 18 0 9 0 27297655 886763520 3287 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/25735/statm: 216495 3287 1731 9 0 210980 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865980

[startup+0.201369 s]
/proc/loadavg: 1.99 1.94 1.45 4/80 25735
/proc/meminfo: memFree=1805564/2055920 swapFree=4192812/4192956
[pid=25735] ppid=25733 vsize=866144 CPUtime=0.19
/proc/25735/stat : 25735 (java) S 25733 25735 24991 0 -1 0 4897 0 1 0 16 3 0 0 18 0 9 0 27297655 886931456 4314 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/25735/statm: 216536 4314 1888 9 0 211014 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 866144

[startup+0.301379 s]
/proc/loadavg: 1.99 1.94 1.45 4/80 25735
/proc/meminfo: memFree=1805564/2055920 swapFree=4192812/4192956
[pid=25735] ppid=25733 vsize=866380 CPUtime=0.29
/proc/25735/stat : 25735 (java) S 25733 25735 24991 0 -1 0 6087 0 1 0 26 3 0 0 18 0 9 0 27297655 887173120 5453 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/25735/statm: 216595 5454 1987 9 0 211053 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866380

Solver just ended. Dumping a history of the last processes samples

[startup+0.401398 s]
/proc/loadavg: 1.99 1.94 1.45 4/80 25735
/proc/meminfo: memFree=1805564/2055920 swapFree=4192812/4192956
[pid=25735] ppid=25733 vsize=866816 CPUtime=0.38
/proc/25735/stat : 25735 (java) S 25733 25735 24991 0 -1 0 8597 272 1 0 34 4 0 0 18 0 9 0 27297655 887619584 6454 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/25735/statm: 216704 6454 2069 9 0 211162 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 866816

[startup+0.601413 s]
/proc/loadavg: 1.99 1.94 1.45 4/80 25735
/proc/meminfo: memFree=1805564/2055920 swapFree=4192812/4192956
[pid=25735] ppid=25733 vsize=867064 CPUtime=0.57
/proc/25735/stat : 25735 (java) S 25733 25735 24991 0 -1 0 14333 272 1 0 50 7 0 0 18 0 9 0 27297655 887873536 9968 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/25735/statm: 216766 9968 2653 9 0 211202 0
Current children cumulated CPU time (s) 0.57
Current children cumulated vsize (KiB) 867064

Child status: 0
Real time (s): 0.630393
CPU time (s): 0.592909
CPU user time (s): 0.509922
CPU system time (s): 0.082987
CPU usage (%): 94.0539
Max. virtual memory (cumulated for all children) (KiB): 867064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.509922
system time used= 0.082987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 14634
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= 489
involuntary context switches= 521

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node9 at 2009-07-12 14:38:25
IDJOB=2094007
IDBENCH=53902
IDSOLVER=773
FILE ID=node9/2094007-1247402305
PBS_JOBID= 9510626
Free space on /tmp= 66396 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/pigeons_glb/normalized-pigeons-8_ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2094007-1247402305/watcher-2094007-1247402305 -o /tmp/evaluation-result-2094007-1247402305/solver-2094007-1247402305 -C 1800 -W 2000 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2094007-1247402305.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 800b69643a65b2ea63633bdce35a7878
RANDOM SEED=566450945

node9.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.216
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		: 3000.216
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:       1806044 kB
Buffers:         32276 kB
Cached:         103928 kB
SwapCached:          0 kB
Active:         140964 kB
Inactive:        52220 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1806044 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2008 kB
Writeback:           0 kB
Mapped:          77408 kB
Slab:            41956 kB
Committed_AS:   991512 kB
PageTables:       1872 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= 66396 MiB
End job on node9 at 2009-07-12 14:38:26