Trace number 2093448

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 ESACUNSAT 0.761883 0.791779

DiagnosticValue
CHECKS8
NODES0

General information on the benchmark

Namecsp/coloring/
normalized-queens-5-5-4-ext.xml
MD5SUMef364398cada7b4fa344377af4ee5904
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.010998
Satisfiable
(Un)Satisfiability was proved
Number of variables25
Number of constraints160
Maximum constraint arity2
Maximum domain size4
Number of constraints which are defined in extension160
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.01/0.09	
0.01/0.09	Abscon 112 (May, 2008)
0.19/0.25	
0.19/0.25	   configuration
0.19/0.25	     name=esac.xml
0.19/0.29	   
0.19/0.29	   instance
0.19/0.29	     name=HOME/instance-2093448-1247401326.xml
0.29/0.33	   
0.29/0.33	   domains being loaded...
0.29/0.34	   
0.29/0.34	   variables being loaded...
0.29/0.36	     nbVariables=25  nbDomainTypes=1  minDomainSize=4  maxDomainSize=4  nbTotalValues=100
0.29/0.37	       =>  wckTime=0.108  cpuTime=0.1  mem=7M892
0.29/0.37	   
0.29/0.37	   relations being loaded...
0.29/0.37	   
0.29/0.37	   constraints being loaded...
0.48/0.56	     nbConstraints=167  nbRelationTypes=1  nbGlobalConstraints=7  nbExtensionStructures=2
0.48/0.56	     nbSharedExtensionStructures=158  nbConflictsStructures=3  nbSharedConflictsStructures=158
0.48/0.56	     nbSharedBinaryRepresentations=4  minDegree=14  maxDegree=17  minArity=2  avgArity=2.3  maxArity=20  nbGenerators=2
0.48/0.56	     nbFusions=2  symmetryWckTime=0.105  symmetryCpuTime=0.07  nbCliques=5
0.48/0.56	       =>  wckTime=0.303  cpuTime=0.23  mem=13M780
0.58/0.61	   
0.58/0.61	   solver IterativeSystematicSolver being built... 
0.58/0.68	   
0.58/0.68	   INFO : Forward propagation technique limited 
0.67/0.75	       =>  wckTime=0.496  cpuTime=0.34  mem=20M568
0.67/0.76	   
0.67/0.76	   preprocessing
0.67/0.76	     nbConstraintChecks=8  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRemovedValues=2  nbRemovedTuples=6
0.67/0.76	     detectedInconsistency=yes
0.67/0.76	       =>  wckTime=0.0020  cpuTime=0.01  mem=20M568
0.67/0.76	   
0.67/0.76	   global
0.67/0.76	     nbConstraintChecks=8  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRestartNogoods=0
0.67/0.76	     solvingWckTime=0.0050  solvingCpuTime=0.01  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.67/0.76	     globalCpuTime=0.39
0.67/0.76	       =>  wckTime=0.502  cpuTime=0.35  mem=20M568
0.67/0.76	   
0.67/0.76	s UNSATISFIABLE
0.67/0.76	d NODES 0
0.67/0.76	d CHECKS 8
0.67/0.76	   
0.67/0.76	   totalWckTime=0.573  totalCpuTime=0.39

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-2093448-1247401326/watcher-2093448-1247401326 -o /tmp/evaluation-result-2093448-1247401326/solver-2093448-1247401326 -C 1800 -W 2000 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-2093448-1247401326.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: 1.93 0.98 0.40 4/80 28791
/proc/meminfo: memFree=1791904/2055920 swapFree=4192812/4192956
[pid=28791] ppid=28789 vsize=10676 CPUtime=0
/proc/28791/stat : 28791 (java) S 28789 28791 28469 0 -1 0 678 0 0 0 0 0 0 0 18 0 2 0 27195225 10932224 474 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/28791/statm: 2669 474 207 9 0 1184 0
[pid=28791/tid=28792] ppid=28789 vsize=10676 CPUtime=0
/proc/28791/task/28792/stat : 28792 (java) R 28789 28791 28469 0 -1 64 0 0 0 0 0 0 0 0 19 0 2 0 27195226 10932224 474 996147200 134512640 134550932 4294955968 18446744073709551615 8052696 0 0 4096 0 0 0 0 -1 1 0 0

[startup+0.028347 s]
/proc/loadavg: 1.93 0.98 0.40 4/80 28791
/proc/meminfo: memFree=1791904/2055920 swapFree=4192812/4192956
[pid=28791] ppid=28789 vsize=861936 CPUtime=0.01
/proc/28791/stat : 28791 (java) S 28789 28791 28469 0 -1 0 1896 0 1 0 0 1 0 0 18 0 5 0 27195225 882622464 1578 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/28791/statm: 215484 1882 863 9 0 210399 0
[pid=28791/tid=28792] ppid=28789 vsize=861936 CPUtime=0.02
/proc/28791/task/28792/stat : 28792 (java) D 28789 28791 28469 0 -1 64 1601 0 1 0 1 1 0 0 17 0 5 0 27195226 882622464 1896 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 2147483391 0 16800971 18446744072099781622 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 861936

[startup+0.122109 s]
/proc/loadavg: 1.93 0.98 0.40 4/80 28791
/proc/meminfo: memFree=1791904/2055920 swapFree=4192812/4192956
[pid=28791] ppid=28789 vsize=865984 CPUtime=0.11
/proc/28791/stat : 28791 (java) S 28789 28791 28469 0 -1 0 4017 0 1 0 9 2 0 0 18 0 9 0 27195225 886767616 3446 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28791/statm: 216496 3446 1795 9 0 210981 0
[pid=28791/tid=28792] ppid=28789 vsize=865984 CPUtime=0.08
/proc/28791/task/28792/stat : 28792 (java) R 28789 28791 28469 0 -1 64 3090 0 1 0 7 1 0 0 20 0 9 0 27195226 886767616 3446 996147200 134512640 134550932 4294955968 18446744073709551615 103666575 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 865984

[startup+0.302127 s]
/proc/loadavg: 1.93 0.98 0.40 4/80 28791
/proc/meminfo: memFree=1791904/2055920 swapFree=4192812/4192956
[pid=28791] ppid=28789 vsize=866380 CPUtime=0.29
/proc/28791/stat : 28791 (java) S 28789 28791 28469 0 -1 0 5892 0 1 0 25 4 0 0 18 0 9 0 27195225 887173120 5258 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28791/statm: 216595 5258 1983 9 0 211053 0
[pid=28791/tid=28792] ppid=28789 vsize=866380 CPUtime=0.24
/proc/28791/task/28792/stat : 28792 (java) R 28789 28791 28469 0 -1 64 4910 0 1 0 21 3 0 0 18 0 9 0 27195226 887173120 5258 996147200 134512640 134550932 4294955968 18446744073709551615 104264432 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866380

[startup+0.705188 s]
/proc/loadavg: 1.93 0.98 0.40 4/80 28791
/proc/meminfo: memFree=1791904/2055920 swapFree=4192812/4192956
[pid=28791] ppid=28789 vsize=867348 CPUtime=0.67
/proc/28791/stat : 28791 (java) S 28789 28791 28469 0 -1 0 12834 287 1 0 61 6 0 0 18 0 9 0 27195225 888164352 8203 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28791/statm: 216837 8203 2651 9 0 211273 0
[pid=28791/tid=28792] ppid=28789 vsize=867348 CPUtime=0.49
/proc/28791/task/28792/stat : 28792 (java) R 28789 28791 28469 0 -1 64 9394 287 1 0 44 5 0 0 20 0 9 0 27195226 888164352 8203 996147200 134512640 134550932 4294955968 18446744073709551615 4125976662 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 867348

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

Child status: 0
Real time (s): 0.791779
CPU time (s): 0.761883
CPU user time (s): 0.674897
CPU system time (s): 0.086986
CPU usage (%): 96.2242
Max. virtual memory (cumulated for all children) (KiB): 867348

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.674897
system time used= 0.086986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15365
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= 712
involuntary context switches= 776

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node71 at 2009-07-12 14:22:06
IDJOB=2093448
IDBENCH=53577
IDSOLVER=774
FILE ID=node71/2093448-1247401326
PBS_JOBID= 9510505
Free space on /tmp= 66396 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/coloring/normalized-queens-5-5-4-ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2093448-1247401326/watcher-2093448-1247401326 -o /tmp/evaluation-result-2093448-1247401326/solver-2093448-1247401326 -C 1800 -W 2000 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-2093448-1247401326.xml

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

MD5SUM BENCH= ef364398cada7b4fa344377af4ee5904
RANDOM SEED=1143010365

node71.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		: 3000.222
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		: 3000.222
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:       1792384 kB
Buffers:         35436 kB
Cached:         123956 kB
SwapCached:          0 kB
Active:         135796 kB
Inactive:        73616 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1792384 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2328 kB
Writeback:           0 kB
Mapped:          70432 kB
Slab:            39216 kB
Committed_AS:  1012680 kB
PageTables:       1936 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 node71 at 2009-07-12 14:22:07