Trace number 2098282

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 0.873866 0.897852

DiagnosticValue
CHECKS34
NODES0

General information on the benchmark

Namecsp/pigeons/
normalized-pigeons-18.xml
MD5SUM1911c6e7c2f00a00049075f49a9583fb
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 benchmark0.009997
Satisfiable
(Un)Satisfiability was proved
Number of variables18
Number of constraints153
Maximum constraint arity2
Maximum domain size17
Number of constraints which are defined in extension0
Number of constraints which are defined in intension153
Global constraints used (with number of constraints)

Solver Data 

0.06/0.09	
0.06/0.09	Abscon 112 (May, 2008)
0.17/0.24	
0.17/0.24	   configuration
0.17/0.24	     name=esac.xml
0.28/0.33	   
0.28/0.33	   instance
0.28/0.33	     name=HOME/instance-2098282-1247414330.xml
0.28/0.36	   
0.28/0.36	   domains being loaded...
0.28/0.37	   
0.28/0.37	   variables being loaded...
0.28/0.39	     nbVariables=18  nbDomainTypes=1  minDomainSize=17  maxDomainSize=17  nbTotalValues=306
0.28/0.39	       =>  wckTime=0.147  cpuTime=0.11  mem=7M892
0.28/0.39	   
0.28/0.39	   predicates being loaded...
0.37/0.46	   
0.37/0.46	   constraints being loaded...
0.57/0.68	     nbConstraints=171  nbGlobalConstraints=18  nbConvertedConstraints=153  nbConvertConstraintsChecks=578
0.57/0.68	     nbExtensionStructures=2  nbSharedExtensionStructures=151  nbConflictsStructures=18  nbSharedConflictsStructures=151
0.57/0.68	     nbSharedBinaryRepresentations=17  minDegree=19  maxDegree=20  minArity=2  avgArity=2.09  maxArity=18
0.57/0.68	     nbGenerators=17  nbFusions=17  symmetryWckTime=0.068  symmetryCpuTime=0.02  nbCliques=1
0.57/0.68	       =>  wckTime=0.433  cpuTime=0.3  mem=14M825
0.66/0.73	   
0.66/0.73	   solver IterativeSystematicSolver being built... 
0.77/0.80	   
0.77/0.80	   INFO : Forward propagation technique limited 
0.77/0.87	       =>  wckTime=0.624  cpuTime=0.43  mem=19M598
0.77/0.87	   
0.77/0.87	   preprocessing
0.77/0.87	     nbConstraintChecks=34  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRemovedValues=2
0.77/0.87	     nbRemovedTuples=136  detectedInconsistency=yes
0.77/0.87	       =>  wckTime=0.0020  cpuTime=0.0  mem=19M598
0.77/0.88	   
0.77/0.88	   global
0.77/0.88	     nbConstraintChecks=34  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRestartNogoods=0
0.77/0.88	     solvingWckTime=0.0060  solvingCpuTime=0.0  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.77/0.88	     globalCpuTime=0.48
0.77/0.88	       =>  wckTime=0.631  cpuTime=0.43  mem=20M576
0.77/0.88	   
0.77/0.88	s UNSATISFIABLE
0.77/0.88	d NODES 0
0.77/0.88	d CHECKS 34
0.77/0.88	   
0.77/0.88	   totalWckTime=0.689  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-2098282-1247414330/watcher-2098282-1247414330 -o /tmp/evaluation-result-2098282-1247414330/solver-2098282-1247414330 -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-2098282-1247414330.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 2.02 2.00 4/80 30847
/proc/meminfo: memFree=1671464/2055920 swapFree=4192812/4192956
[pid=30847] ppid=30845 vsize=1616 CPUtime=0
/proc/30847/stat : 30847 (java) D 30845 30847 28929 0 -1 0 347 0 0 0 0 0 0 0 18 0 1 0 28497054 1654784 151 996147200 134512640 134550932 4294955968 18446744073709551615 12219172 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/30847/statm: 2691 520 240 9 0 1196 0
[pid=30847/tid=30848] ppid=30845 vsize=10764 CPUtime=0
/proc/30847/task/30848/stat : 30848 (java) D 30845 30847 28929 0 -1 64 62 0 0 0 0 0 0 0 18 0 2 0 28497055 11022336 520 996147200 134512640 134550932 4294955968 18446744073709551615 12219172 0 2147483391 0 16784584 18446744072099781622 0 0 -1 1 0 0

[startup+0.083256 s]
/proc/loadavg: 2.00 2.02 2.00 4/80 30847
/proc/meminfo: memFree=1671464/2055920 swapFree=4192812/4192956
[pid=30847] ppid=30845 vsize=864148 CPUtime=0.06
/proc/30847/stat : 30847 (java) S 30845 30847 28929 0 -1 0 3070 0 1 0 5 1 0 0 18 0 9 0 28497054 884887552 2555 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30847/statm: 216037 2555 1222 9 0 210930 0
[pid=30847/tid=30848] ppid=30845 vsize=864148 CPUtime=0.05
/proc/30847/task/30848/stat : 30848 (java) R 30845 30847 28929 0 -1 64 2164 0 1 0 4 1 0 0 18 0 9 0 28497055 884887552 2555 996147200 134512640 134550932 4294955968 18446744073709551615 104263731 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 864148

[startup+0.101253 s]
/proc/loadavg: 2.00 2.02 2.00 4/80 30847
/proc/meminfo: memFree=1671464/2055920 swapFree=4192812/4192956
[pid=30847] ppid=30845 vsize=865984 CPUtime=0.07
/proc/30847/stat : 30847 (java) S 30845 30847 28929 0 -1 0 3718 0 1 0 6 1 0 0 18 0 9 0 28497054 886767616 3186 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30847/statm: 216496 3186 1690 9 0 210981 0
[pid=30847/tid=30848] ppid=30845 vsize=865984 CPUtime=0.07
/proc/30847/task/30848/stat : 30848 (java) R 30845 30847 28929 0 -1 64 2810 0 1 0 6 1 0 0 18 0 9 0 28497055 886767616 3186 996147200 134512640 134550932 4294955968 18446744073709551615 4125958483 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 865984

[startup+0.301267 s]
/proc/loadavg: 2.00 2.02 2.00 4/80 30847
/proc/meminfo: memFree=1671464/2055920 swapFree=4192812/4192956
[pid=30847] ppid=30845 vsize=866144 CPUtime=0.28
/proc/30847/stat : 30847 (java) S 30845 30847 28929 0 -1 0 5658 0 1 0 25 3 0 0 18 0 9 0 28497054 886931456 5061 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30847/statm: 216536 5061 1927 9 0 211014 0
[pid=30847/tid=30848] ppid=30845 vsize=866144 CPUtime=0.24
/proc/30847/task/30848/stat : 30848 (java) R 30845 30847 28929 0 -1 64 4727 0 1 0 22 2 0 0 19 0 9 0 28497055 886931456 5061 996147200 134512640 134550932 4294955968 18446744073709551615 12219172 0 2147483391 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866144

[startup+0.701303 s]
/proc/loadavg: 2.00 2.02 2.00 4/80 30847
/proc/meminfo: memFree=1671464/2055920 swapFree=4192812/4192956
[pid=30847] ppid=30845 vsize=867376 CPUtime=0.66
/proc/30847/stat : 30847 (java) S 30845 30847 28929 0 -1 0 10174 287 1 0 60 6 0 0 18 0 9 0 28497054 888193024 7520 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30847/statm: 216844 7520 2099 9 0 211280 0
[pid=30847/tid=30848] ppid=30845 vsize=867376 CPUtime=0.51
/proc/30847/task/30848/stat : 30848 (java) R 30845 30847 28929 0 -1 64 7692 287 1 0 47 4 0 0 20 0 9 0 28497055 888193024 7520 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 867376

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

[startup+0.801301 s]
/proc/loadavg: 2.00 2.02 2.00 4/80 30847
/proc/meminfo: memFree=1671464/2055920 swapFree=4192812/4192956
[pid=30847] ppid=30845 vsize=867376 CPUtime=0.77
/proc/30847/stat : 30847 (java) S 30845 30847 28929 0 -1 0 12484 287 1 0 70 7 0 0 18 0 9 0 28497054 888193024 8417 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30847/statm: 216844 8417 2651 9 0 211280 0
[pid=30847/tid=30848] ppid=30845 vsize=867376 CPUtime=0.57
/proc/30847/task/30848/stat : 30848 (java) R 30845 30847 28929 0 -1 64 8877 287 1 0 52 5 0 0 20 0 9 0 28497055 888193024 8417 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.77
Current children cumulated vsize (KiB) 867376

Child status: 0
Real time (s): 0.897852
CPU time (s): 0.873866
CPU user time (s): 0.779881
CPU system time (s): 0.093985
CPU usage (%): 97.3285
Max. virtual memory (cumulated for all children) (KiB): 867376

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.779881
system time used= 0.093985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15804
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= 482
involuntary context switches= 507

runsolver used 0.001999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node39 at 2009-07-12 17:58:50
IDJOB=2098282
IDBENCH=58542
IDSOLVER=774
FILE ID=node39/2098282-1247414330
PBS_JOBID= 9510566
Free space on /tmp= 66428 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/pigeons/normalized-pigeons-18.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-2098282-1247414330/watcher-2098282-1247414330 -o /tmp/evaluation-result-2098282-1247414330/solver-2098282-1247414330 -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-2098282-1247414330.xml

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

MD5SUM BENCH= 1911c6e7c2f00a00049075f49a9583fb
RANDOM SEED=1232529502

node39.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		: 3000.236
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		: 3000.236
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:       1671944 kB
Buffers:         37460 kB
Cached:         105000 kB
SwapCached:          0 kB
Active:         264224 kB
Inactive:        54616 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1671944 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2124 kB
Writeback:           0 kB
Mapped:         196872 kB
Slab:            50048 kB
Committed_AS:   995816 kB
PageTables:       2100 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= 66428 MiB
End job on node39 at 2009-07-12 17:58:51