Trace number 2098438

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 0.721889 0.737579

DiagnosticValue
CHECKS218
NODES0

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-3.xml
MD5SUMaa253ebcb4b244774c05961391955ab9
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 benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
Number of variables12
Number of constraints75
Maximum constraint arity2
Maximum domain size12
Number of constraints which are defined in extension0
Number of constraints which are defined in intension75
Global constraints used (with number of constraints)

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=esac.xml
0.19/0.27	   
0.19/0.27	   instance
0.19/0.27	     name=HOME/instance-2098438-1247415489.xml
0.29/0.31	   
0.29/0.31	   domains being loaded...
0.29/0.32	   
0.29/0.32	   variables being loaded...
0.29/0.34	     nbVariables=12  nbDomainTypes=1  minDomainSize=12  maxDomainSize=12  nbTotalValues=144
0.29/0.34	       =>  wckTime=0.1  cpuTime=0.08  mem=7M892
0.29/0.34	   
0.29/0.34	   predicates being loaded...
0.38/0.40	   
0.38/0.40	   constraints being loaded...
0.48/0.52	     nbConstraints=67  nbGlobalConstraints=1  nbMergedConstraints=9  nbConvertedConstraints=66
0.48/0.52	     nbConvertConstraintsChecks=576  nbExtensionStructures=4  nbSharedExtensionStructures=62  nbConflictsStructures=4
0.48/0.52	     nbSharedConflictsStructures=62  nbSharedBinaryRepresentations=71  minDegree=12  maxDegree=12  minArity=2
0.48/0.52	     avgArity=2.15  maxArity=12  nbGenerators=0  nbFusions=0  symmetryWckTime=0.038  symmetryCpuTime=0.02  nbCliques=1
0.48/0.52	       =>  wckTime=0.275  cpuTime=0.2  mem=14M754
0.48/0.57	   
0.48/0.57	   solver IterativeSystematicSolver being built... 
0.58/0.64	   
0.58/0.64	   INFO : Forward propagation technique limited 
0.68/0.70	       =>  wckTime=0.46  cpuTime=0.32  mem=19M449
0.68/0.71	   
0.68/0.71	   preprocessing
0.68/0.71	     nbConstraintChecks=218  nbPropagations=17  nbRevisions=21  nbUselessRevisions=0  nbRemovedValues=92
0.68/0.71	     detectedInconsistency=yes
0.68/0.71	       =>  wckTime=0.0050  cpuTime=0.01  mem=19M449
0.68/0.71	   
0.68/0.71	   global
0.68/0.71	     nbConstraintChecks=218  nbPropagations=17  nbRevisions=21  nbUselessRevisions=0  nbRestartNogoods=0
0.68/0.71	     solvingWckTime=0.0070  solvingCpuTime=0.01  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.68/0.71	     globalCpuTime=0.38
0.68/0.71	       =>  wckTime=0.47  cpuTime=0.33  mem=20M441
0.68/0.71	   
0.68/0.71	s UNSATISFIABLE
0.68/0.71	d NODES 0
0.68/0.71	d CHECKS 218
0.68/0.71	   
0.68/0.71	   totalWckTime=0.535  totalCpuTime=0.38

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-2098438-1247415489/watcher-2098438-1247415489 -o /tmp/evaluation-result-2098438-1247415489/solver-2098438-1247415489 -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-2098438-1247415489.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: 1.91 1.98 1.99 3/80 2443
/proc/meminfo: memFree=1714320/2055920 swapFree=4192812/4192956
[pid=2443] ppid=2441 vsize=152 CPUtime=0
/proc/2443/stat : 2443 (java) R 2441 2443 2367 0 -1 0 205 0 0 0 0 0 0 0 18 0 1 0 28615856 155648 26 996147200 134512640 134550932 4294955968 18446744073709551615 11879204 0 0 4096 0 0 0 0 17 0 0 0
/proc/2443/statm: 50 27 20 9 0 4 0

[startup+0.0853049 s]
/proc/loadavg: 1.91 1.98 1.99 3/80 2443
/proc/meminfo: memFree=1714320/2055920 swapFree=4192812/4192956
[pid=2443] ppid=2441 vsize=865980 CPUtime=0.08
/proc/2443/stat : 2443 (java) S 2441 2443 2367 0 -1 0 3660 0 1 0 6 2 0 0 18 0 9 0 28615856 886763520 3143 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/2443/statm: 216495 3143 1680 9 0 210980 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865980

[startup+0.1013 s]
/proc/loadavg: 1.91 1.98 1.99 3/80 2443
/proc/meminfo: memFree=1714320/2055920 swapFree=4192812/4192956
[pid=2443] ppid=2441 vsize=865980 CPUtime=0.09
/proc/2443/stat : 2443 (java) S 2441 2443 2367 0 -1 0 3804 0 1 0 7 2 0 0 18 0 9 0 28615856 886763520 3255 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/2443/statm: 216495 3256 1718 9 0 210980 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865980

[startup+0.301327 s]
/proc/loadavg: 1.91 1.98 1.99 3/80 2443
/proc/meminfo: memFree=1714320/2055920 swapFree=4192812/4192956
[pid=2443] ppid=2441 vsize=866380 CPUtime=0.29
/proc/2443/stat : 2443 (java) S 2441 2443 2367 0 -1 0 6091 0 1 0 25 4 0 0 18 0 9 0 28615856 887173120 5457 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/2443/statm: 216595 5457 1987 9 0 211053 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866380

[startup+0.701388 s]
/proc/loadavg: 1.91 1.98 1.99 3/80 2443
/proc/meminfo: memFree=1714320/2055920 swapFree=4192812/4192956
[pid=2443] ppid=2441 vsize=868064 CPUtime=0.68
/proc/2443/stat : 2443 (java) S 2441 2443 2367 0 -1 0 15023 267 1 0 60 8 0 0 18 0 9 0 28615856 888897536 9902 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/2443/statm: 217016 9902 2653 9 0 211452 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 868064

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

Child status: 0
Real time (s): 0.737579
CPU time (s): 0.721889
CPU user time (s): 0.621905
CPU system time (s): 0.099984
CPU usage (%): 97.8728
Max. virtual memory (cumulated for all children) (KiB): 868064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.621905
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= 15582
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= 601
involuntary context switches= 646

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node13 at 2009-07-12 18:18:09
IDJOB=2098438
IDBENCH=58648
IDSOLVER=774
FILE ID=node13/2098438-1247415489
PBS_JOBID= 9510646
Free space on /tmp= 66300 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-3.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-2098438-1247415489/watcher-2098438-1247415489 -o /tmp/evaluation-result-2098438-1247415489/solver-2098438-1247415489 -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-2098438-1247415489.xml

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

MD5SUM BENCH= aa253ebcb4b244774c05961391955ab9
RANDOM SEED=275496346

node13.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		: 3000.241
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		: 3000.241
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:       1714800 kB
Buffers:         42368 kB
Cached:         108116 kB
SwapCached:          0 kB
Active:         225548 kB
Inactive:        58284 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1714800 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2316 kB
Writeback:           0 kB
Mapped:         153824 kB
Slab:            42392 kB
Committed_AS:  1014552 kB
PageTables:       2116 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 node13 at 2009-07-12 18:18:10