Trace number 2098565

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 ACSAT 0.962853 1.00015

DiagnosticValue
CHECKS5137
NODES35

General information on the benchmark

Namecsp/queens/
normalized-queens-20.xml
MD5SUMce8cfcb035a6b208d012c9283692aba6
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.026995
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints190
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension0
Number of constraints which are defined in intension190
Global constraints used (with number of constraints)

Solver Data 

0.00/0.09	
0.00/0.09	Abscon 112 (May, 2008)
0.18/0.27	
0.18/0.27	   configuration
0.18/0.27	     name=mac.xml
0.29/0.30	   
0.29/0.30	   instance
0.29/0.30	     name=HOME/instance-2098565-1247416107.xml
0.29/0.34	   
0.29/0.34	   domains being loaded...
0.29/0.35	   
0.29/0.35	   variables being loaded...
0.29/0.38	     nbVariables=20  nbDomainTypes=1  minDomainSize=20  maxDomainSize=20  nbTotalValues=400
0.29/0.38	       =>  wckTime=0.11  cpuTime=0.1  mem=7M892
0.29/0.38	   
0.29/0.38	   predicates being loaded...
0.39/0.44	   
0.39/0.44	   constraints being loaded...
0.67/0.72	     nbConstraints=192  nbGlobalConstraints=2  nbConvertedConstraints=190  nbConvertConstraintsChecks=8000
0.67/0.72	     nbExtensionStructures=20  nbSharedExtensionStructures=170  nbConflictsStructures=20
0.67/0.72	     nbSharedConflictsStructures=170  nbSharedBinaryRepresentations=519  minDegree=21  maxDegree=21  minArity=2
0.67/0.72	     avgArity=2.19  maxArity=20  nbGenerators=1  nbFusions=1  symmetryWckTime=0.068  symmetryCpuTime=0.04  nbCliques=1
0.67/0.72	       =>  wckTime=0.453  cpuTime=0.34  mem=15M751
0.67/0.78	   
0.67/0.78	   solver IterativeSystematicSolver being built... 
0.77/0.84	   
0.77/0.84	   INFO : Forward propagation technique limited 
0.87/0.91	       =>  wckTime=0.637  cpuTime=0.45  mem=19M655
0.87/0.91	   
0.87/0.91	   preprocessing
0.87/0.91	     nbConstraintChecks=40  nbPropagations=21  nbRevisions=2  nbUselessRevisions=0  nbRemovedValues=2
0.87/0.91	     nbRemovedTuples=189  detectedInconsistency=no
0.87/0.91	       =>  wckTime=0.0050  cpuTime=0.0  mem=19M655
0.87/0.96	   
0.87/0.96	   search
0.87/0.96	     run=0  nbConstraintChecks=5097  minDepth=9  maxDepth=20  nbPropagations=332  nbRevisions=1173
0.87/0.96	     nbUselessRevisions=789  nbAssignments=35  nbFailedAssignments=7  nbBacktracks=8  nbVisitedNodes=50
0.87/0.96	     nbRestartNogoods=0  nbFoundSolutions=1  mapSize=8  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
0.87/0.96	     nbREliminables=0  nbIEliminables=10.48  nbDEliminables=0  nbPEliminables=0
0.87/0.96	       =>  wckTime=0.049  cpuTime=0.03  mem=21M608
0.87/0.96	   
0.87/0.96	   global
0.87/0.96	     nbConstraintChecks=5137  nbPropagations=353  nbRevisions=1175  nbUselessRevisions=789  nbRestartNogoods=0
0.87/0.96	     solvingWckTime=0.051  solvingCpuTime=0.03  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.87/0.96	     firstSolutionCpuTime=0.48  globalCpuTime=0.52
0.87/0.96	       =>  wckTime=0.69  cpuTime=0.48  mem=21M608
0.87/0.96	   
0.87/0.96	s SATISFIABLE
0.87/0.96	v 2 4 11 15 19 1 14 18 8 3 9 16 5 17 12 6 13 7 10 20 
0.87/0.96	d NODES 35
0.87/0.96	d CHECKS 5137
0.87/0.96	   
0.87/0.96	   totalWckTime=0.763  totalCpuTime=0.52

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2098565-1247416107/watcher-2098565-1247416107 -o /tmp/evaluation-result-2098565-1247416107/solver-2098565-1247416107 -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-2098565-1247416107.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: 1.85 1.97 1.98 2/80 29110
/proc/meminfo: memFree=1547184/2055920 swapFree=4192812/4192956
[pid=29110] ppid=29108 vsize=18576 CPUtime=0
/proc/29110/stat : 29110 (runsolver) R 29108 29110 28956 0 -1 4194368 16 0 0 0 0 0 0 0 23 0 1 0 28676811 19021824 285 996147200 4194304 4302564 548682068384 18446744073709551615 225612197159 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/29110/statm: 4644 285 249 26 0 2626 0

[startup+0.0166331 s]
/proc/loadavg: 1.85 1.97 1.98 2/80 29110
/proc/meminfo: memFree=1547184/2055920 swapFree=4192812/4192956
[pid=29110] ppid=29108 vsize=10764 CPUtime=0
/proc/29110/stat : 29110 (java) S 29108 29110 28956 0 -1 0 740 0 0 0 0 0 0 0 18 0 2 0 28676811 11022336 520 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/29110/statm: 2741 577 284 9 0 1198 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 10764

[startup+0.104231 s]
/proc/loadavg: 1.85 1.97 1.98 2/80 29110
/proc/meminfo: memFree=1547184/2055920 swapFree=4192812/4192956
[pid=29110] ppid=29108 vsize=865984 CPUtime=0.09
/proc/29110/stat : 29110 (java) S 29108 29110 28956 0 -1 0 3725 0 1 0 8 1 0 0 18 0 9 0 28676811 886767616 3193 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/29110/statm: 216496 3193 1695 9 0 210981 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865984

[startup+0.302248 s]
/proc/loadavg: 1.85 1.97 1.98 2/80 29110
/proc/meminfo: memFree=1547184/2055920 swapFree=4192812/4192956
[pid=29110] ppid=29108 vsize=866380 CPUtime=0.29
/proc/29110/stat : 29110 (java) S 29108 29110 28956 0 -1 0 5718 0 1 0 26 3 0 0 18 0 9 0 28676811 887173120 5121 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/29110/statm: 216595 5121 1934 9 0 211053 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866380

[startup+0.702289 s]
/proc/loadavg: 1.85 1.97 1.98 2/80 29110
/proc/meminfo: memFree=1547184/2055920 swapFree=4192812/4192956
[pid=29110] ppid=29108 vsize=867828 CPUtime=0.67
/proc/29110/stat : 29110 (java) S 29108 29110 28956 0 -1 0 9015 288 1 0 61 6 0 0 18 0 9 0 28676811 888655872 7742 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/29110/statm: 216957 7742 2042 9 0 211393 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 867828

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

[startup+0.902319 s]
/proc/loadavg: 1.85 1.97 1.98 2/80 29110
/proc/meminfo: memFree=1547184/2055920 swapFree=4192812/4192956
[pid=29110] ppid=29108 vsize=867956 CPUtime=0.87
/proc/29110/stat : 29110 (java) S 29108 29110 28956 0 -1 0 15429 288 1 0 79 8 0 0 18 0 9 0 28676811 888786944 9935 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/29110/statm: 216989 9935 2655 9 0 211425 0
Current children cumulated CPU time (s) 0.87
Current children cumulated vsize (KiB) 867956

Child status: 0
Real time (s): 1.00015
CPU time (s): 0.962853
CPU user time (s): 0.860869
CPU system time (s): 0.101984
CPU usage (%): 96.2704
Max. virtual memory (cumulated for all children) (KiB): 867956

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.860869
system time used= 0.101984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16388
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= 944
involuntary context switches= 1041

runsolver used 0.006998 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node31 at 2009-07-12 18:28:27
IDJOB=2098565
IDBENCH=58737
IDSOLVER=773
FILE ID=node31/2098565-1247416107
PBS_JOBID= 9510734
Free space on /tmp= 66372 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/queens/normalized-queens-20.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-2098565-1247416107/watcher-2098565-1247416107 -o /tmp/evaluation-result-2098565-1247416107/solver-2098565-1247416107 -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-2098565-1247416107.xml

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

MD5SUM BENCH= ce8cfcb035a6b208d012c9283692aba6
RANDOM SEED=233488357

node31.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	: 5931.00
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:       1547728 kB
Buffers:         40584 kB
Cached:         166884 kB
SwapCached:          0 kB
Active:         369568 kB
Inactive:        84544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1547728 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2504 kB
Writeback:           0 kB
Mapped:         267152 kB
Slab:            38556 kB
Committed_AS:   990824 kB
PageTables:       2348 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66368 MiB
End job on node31 at 2009-07-12 18:28:28