Trace number 2097577

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 0.891863 0.952591

DiagnosticValue
CHECKS24
NODES0

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-3.xml
MD5SUMd07220ca9cf8898c2c9b405e7e6368f7
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 benchmark0.029995
Satisfiable
(Un)Satisfiability was proved
Number of variables24
Number of constraints210
Maximum constraint arity2
Maximum domain size12
Number of constraints which are defined in extension0
Number of constraints which are defined in intension210
Global constraints used (with number of constraints)

Solver Data 

0.00/0.09	
0.00/0.09	Abscon 112 (May, 2008)
0.18/0.26	
0.18/0.26	   configuration
0.18/0.26	     name=mac.xml
0.28/0.30	   
0.28/0.30	   instance
0.28/0.30	     name=HOME/instance-2097577-1247413552.xml
0.28/0.34	   
0.28/0.34	   domains being loaded...
0.28/0.35	   
0.28/0.35	   variables being loaded...
0.28/0.37	     nbVariables=24  nbDomainTypes=1  minDomainSize=12  maxDomainSize=12  nbTotalValues=288
0.28/0.37	       =>  wckTime=0.109  cpuTime=0.1  mem=7M892
0.28/0.38	   
0.28/0.38	   predicates being loaded...
0.38/0.44	   
0.38/0.44	   constraints being loaded...
0.66/0.71	     nbConstraints=212  nbGlobalConstraints=2  nbConvertedConstraints=210  nbConvertConstraintsChecks=1872
0.66/0.71	     nbExtensionStructures=13  nbSharedExtensionStructures=197  nbConflictsStructures=13
0.66/0.71	     nbSharedConflictsStructures=197  nbSharedBinaryRepresentations=198  minDegree=13  maxDegree=25  minArity=2
0.66/0.71	     avgArity=2.16  maxArity=24  nbGenerators=1  nbFusions=1  symmetryWckTime=0.077  symmetryCpuTime=0.04  nbCliques=1
0.66/0.71	       =>  wckTime=0.446  cpuTime=0.33  mem=15M933
0.66/0.76	   
0.66/0.76	   solver IterativeSystematicSolver being built... 
0.76/0.83	   
0.76/0.83	   INFO : Forward propagation technique limited 
0.76/0.89	       =>  wckTime=0.627  cpuTime=0.43  mem=19M698
0.76/0.90	   
0.76/0.90	   preprocessing
0.76/0.90	     nbConstraintChecks=24  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRemovedValues=2  nbRemovedTuples=65
0.76/0.90	     detectedInconsistency=yes
0.76/0.90	       =>  wckTime=0.0020  cpuTime=0.0  mem=19M698
0.86/0.90	   
0.86/0.90	   global
0.86/0.90	     nbConstraintChecks=24  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRestartNogoods=0
0.86/0.90	     solvingWckTime=0.0060  solvingCpuTime=0.01  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.86/0.90	     globalCpuTime=0.48
0.86/0.90	       =>  wckTime=0.634  cpuTime=0.44  mem=20M673
0.86/0.90	   
0.86/0.90	s UNSATISFIABLE
0.86/0.90	d NODES 0
0.86/0.90	d CHECKS 24
0.86/0.90	   
0.86/0.90	   totalWckTime=0.707  totalCpuTime=0.49

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-2097577-1247413552/watcher-2097577-1247413552 -o /tmp/evaluation-result-2097577-1247413552/solver-2097577-1247413552 -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-2097577-1247413552.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: 2.00 2.00 2.00 4/80 32743
/proc/meminfo: memFree=1675544/2055920 swapFree=4192812/4192956
[pid=32743] ppid=32741 vsize=18576 CPUtime=0
/proc/32743/stat : 32743 (runsolver) R 32741 32743 31096 0 -1 4194368 16 0 0 0 0 0 0 0 19 0 1 0 28421572 19021824 284 996147200 4194304 4302564 548682068384 18446744073709551615 266134416679 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/32743/statm: 4644 284 249 26 0 2626 0

[startup+0.09878 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 32743
/proc/meminfo: memFree=1675544/2055920 swapFree=4192812/4192956
[pid=32743] ppid=32741 vsize=865984 CPUtime=0.08
/proc/32743/stat : 32743 (java) S 32741 32743 31096 0 -1 0 3719 0 1 0 7 1 0 0 18 0 9 0 28421572 886767616 3187 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/32743/statm: 216496 3187 1695 9 0 210981 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865984

[startup+0.101778 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 32743
/proc/meminfo: memFree=1675544/2055920 swapFree=4192812/4192956
[pid=32743] ppid=32741 vsize=865984 CPUtime=0.08
/proc/32743/stat : 32743 (java) S 32741 32743 31096 0 -1 0 3732 0 1 0 7 1 0 0 18 0 9 0 28421572 886767616 3200 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/32743/statm: 216496 3200 1700 9 0 210981 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865984

[startup+0.301828 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 32743
/proc/meminfo: memFree=1675544/2055920 swapFree=4192812/4192956
[pid=32743] ppid=32741 vsize=866380 CPUtime=0.28
/proc/32743/stat : 32743 (java) S 32741 32743 31096 0 -1 0 5818 0 1 0 25 3 0 0 18 0 9 0 28421572 887173120 5194 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/32743/statm: 216595 5194 1976 9 0 211053 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866380

[startup+0.701848 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 32743
/proc/meminfo: memFree=1675544/2055920 swapFree=4192812/4192956
[pid=32743] ppid=32741 vsize=867828 CPUtime=0.66
/proc/32743/stat : 32743 (java) S 32741 32743 31096 0 -1 0 9300 290 1 0 60 6 0 0 18 0 9 0 28421572 888655872 7721 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/32743/statm: 216957 7721 2047 9 0 211393 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 867828

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

[startup+0.901869 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 32743
/proc/meminfo: memFree=1675544/2055920 swapFree=4192812/4192956
[pid=32743] ppid=32741 vsize=867952 CPUtime=0.86
/proc/32743/stat : 32743 (java) S 32741 32743 31096 0 -1 0 15720 290 1 0 78 8 0 0 18 0 9 0 28421572 888782848 10255 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/32743/statm: 216988 10255 2654 9 0 211424 0
Current children cumulated CPU time (s) 0.86
Current children cumulated vsize (KiB) 867952

Child status: 0
Real time (s): 0.952591
CPU time (s): 0.891863
CPU user time (s): 0.791879
CPU system time (s): 0.099984
CPU usage (%): 93.6249
Max. virtual memory (cumulated for all children) (KiB): 867952

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.791879
system time used= 0.099984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16170
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= 859
involuntary context switches= 915

runsolver used 0.007998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node35 at 2009-07-12 17:45:52
IDJOB=2097577
IDBENCH=57530
IDSOLVER=773
FILE ID=node35/2097577-1247413552
PBS_JOBID= 9510573
Free space on /tmp= 66300 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-3.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-2097577-1247413552/watcher-2097577-1247413552 -o /tmp/evaluation-result-2097577-1247413552/solver-2097577-1247413552 -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-2097577-1247413552.xml

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

MD5SUM BENCH= d07220ca9cf8898c2c9b405e7e6368f7
RANDOM SEED=1025064686

node35.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		: 3000.213
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		: 3000.213
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:       1676024 kB
Buffers:         39524 kB
Cached:         131768 kB
SwapCached:          0 kB
Active:         248084 kB
Inactive:        77424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1676024 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2364 kB
Writeback:           0 kB
Mapped:         174676 kB
Slab:            39320 kB
Committed_AS:  1034748 kB
PageTables:       2080 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= 66296 MiB
End job on node35 at 2009-07-12 17:45:53