Trace number 2097286

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 1.02084 1.04458

DiagnosticValue
CHECKS993647
NODES0

General information on the benchmark

Namecsp/queensKnights/
normalized-queensKnights-15-5-add.xml
MD5SUMf79a29efc9f65a8d195d10c1647254fc
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 benchmark1.00785
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints115
Maximum constraint arity2
Maximum domain size225
Number of constraints which are defined in extension0
Number of constraints which are defined in intension115
Global constraints used (with number of constraints)

Solver Data 

0.05/0.08	
0.05/0.08	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-2097286-1247412026.xml
0.28/0.31	   
0.28/0.31	   domains being loaded...
0.28/0.32	   
0.28/0.32	   variables being loaded...
0.28/0.34	     nbVariables=20  nbDomainTypes=2  minDomainSize=15  maxDomainSize=225  nbTotalValues=1350
0.28/0.34	       =>  wckTime=0.102  cpuTime=0.08  mem=7M892
0.28/0.34	   
0.28/0.34	   predicates being loaded...
0.38/0.40	   
0.38/0.40	   constraints being loaded...
0.58/0.69	     nbConstraints=120  nbGlobalConstraints=5  nbConvertedConstraints=115  nbConvertConstraintsChecks=205875
0.58/0.69	     nbExtensionStructures=19  nbSharedExtensionStructures=96  nbConflictsStructures=19  nbSharedConflictsStructures=96
0.58/0.69	     nbSharedBinaryRepresentations=733  minDegree=6  maxDegree=16  minArity=2  avgArity=2.28  maxArity=15
0.58/0.69	     nbGenerators=3  nbFusions=3  symmetryWckTime=0.091  symmetryCpuTime=0.06  nbCliques=2
0.58/0.69	       =>  wckTime=0.454  cpuTime=0.35  mem=15M721
0.68/0.75	   
0.68/0.75	   solver IterativeSystematicSolver being built... 
0.78/0.81	   
0.78/0.82	   INFO : Forward propagation technique limited 
0.78/0.87	       =>  wckTime=0.634  cpuTime=0.45  mem=19M622
0.97/1.01	   
0.97/1.01	   preprocessing
0.97/1.02	     nbConstraintChecks=993647  nbPropagations=2010  nbRevisions=3656  nbUselessRevisions=1444  nbSingletonTests=226
0.97/1.02	     nbEffectiveSingletonTests=208  nbACRemovals=49  nbFoundSingletons=0  nbRemovedValues=1119  nbRemovedTuples=26032
0.97/1.02	     detectedInconsistency=yes
0.97/1.02	       =>  wckTime=0.139  cpuTime=0.12  mem=20M663
0.97/1.02	   
0.97/1.02	   global
0.97/1.02	     nbConstraintChecks=993647  nbPropagations=2010  nbRevisions=3656  nbUselessRevisions=1444  nbRestartNogoods=0
0.97/1.02	     solvingWckTime=0.143  solvingCpuTime=0.12  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.97/1.02	     globalCpuTime=0.61
0.97/1.02	       =>  wckTime=0.778  cpuTime=0.57  mem=20M663
0.97/1.02	   
0.97/1.02	s UNSATISFIABLE
0.97/1.02	d NODES 0
0.97/1.02	d CHECKS 993647
0.97/1.02	   
0.97/1.02	   totalWckTime=0.843  totalCpuTime=0.61

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-2097286-1247412026/watcher-2097286-1247412026 -o /tmp/evaluation-result-2097286-1247412026/solver-2097286-1247412026 -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-2097286-1247412026.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: 2.08 2.08 2.03 3/80 27794
/proc/meminfo: memFree=1746648/2055920 swapFree=4192812/4192956
[pid=27794] ppid=27792 vsize=152 CPUtime=0
/proc/27794/stat : 27794 (java) R 27792 27794 27079 0 -1 0 205 0 0 0 0 0 0 0 18 0 1 0 28270248 155648 26 996147200 134512640 134550932 4294955968 18446744073709551615 10535716 0 0 4096 0 0 0 0 17 0 0 0
/proc/27794/statm: 38 26 19 9 0 4 0

[startup+0.0663961 s]
/proc/loadavg: 2.08 2.08 2.03 3/80 27794
/proc/meminfo: memFree=1746648/2055920 swapFree=4192812/4192956
[pid=27794] ppid=27792 vsize=864144 CPUtime=0.05
/proc/27794/stat : 27794 (java) S 27792 27794 27079 0 -1 0 2986 0 1 0 4 1 0 0 18 0 9 0 28270248 884883456 2480 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/27794/statm: 216036 2480 1168 9 0 210929 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 864144

[startup+0.101398 s]
/proc/loadavg: 2.08 2.08 2.03 3/80 27794
/proc/meminfo: memFree=1746648/2055920 swapFree=4192812/4192956
[pid=27794] ppid=27792 vsize=865980 CPUtime=0.09
/proc/27794/stat : 27794 (java) S 27792 27794 27079 0 -1 0 3802 0 1 0 7 2 0 0 18 0 9 0 28270248 886763520 3253 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/27794/statm: 216495 3253 1718 9 0 210980 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865980

[startup+0.301435 s]
/proc/loadavg: 2.08 2.08 2.03 3/80 27794
/proc/meminfo: memFree=1746648/2055920 swapFree=4192812/4192956
[pid=27794] ppid=27792 vsize=866380 CPUtime=0.28
/proc/27794/stat : 27794 (java) S 27792 27794 27079 0 -1 0 6087 0 1 0 25 3 0 0 18 0 9 0 28270248 887173120 5453 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/27794/statm: 216595 5453 1987 9 0 211053 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866380

[startup+0.701505 s]
/proc/loadavg: 2.08 2.08 2.03 3/80 27794
/proc/meminfo: memFree=1746648/2055920 swapFree=4192812/4192956
[pid=27794] ppid=27792 vsize=867040 CPUtime=0.68
/proc/27794/stat : 27794 (java) S 27792 27794 27079 0 -1 0 9305 158 1 0 62 6 0 0 18 0 10 0 28270248 887848960 7570 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/27794/statm: 216760 7570 2055 9 0 211196 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867040

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

[startup+0.901545 s]
/proc/loadavg: 2.08 2.08 2.03 3/80 27794
/proc/meminfo: memFree=1746648/2055920 swapFree=4192812/4192956
[pid=27794] ppid=27792 vsize=867040 CPUtime=0.87
/proc/27794/stat : 27794 (java) S 27792 27794 27079 0 -1 0 15404 281 1 0 79 8 0 0 18 0 9 0 28270248 887848960 10126 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/27794/statm: 216760 10126 2656 9 0 211196 0
Current children cumulated CPU time (s) 0.87
Current children cumulated vsize (KiB) 867040

[startup+1.00156 s]
/proc/loadavg: 2.08 2.08 2.03 3/89 27807
/proc/meminfo: memFree=1716232/2055920 swapFree=4192812/4192956
[pid=27794] ppid=27792 vsize=867040 CPUtime=0.97
/proc/27794/stat : 27794 (java) S 27792 27794 27079 0 -1 0 15433 281 1 0 89 8 0 0 18 0 9 0 28270248 887848960 10155 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/27794/statm: 216760 10155 2656 9 0 211196 0
[pid=27794/tid=27796] ppid=27792 vsize=867040 CPUtime=0.74
/proc/27794/task/27796/stat : 27796 (java) R 27792 27794 27079 0 -1 64 11705 281 1 0 68 6 0 0 18 0 9 0 28270249 887848960 10155 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=27794/tid=27797] ppid=27792 vsize=867040 CPUtime=0.03
/proc/27794/task/27797/stat : 27797 (java) S 27792 27794 27079 0 -1 64 2318 281 0 0 3 0 0 0 16 0 9 0 28270250 887848960 10155 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=27794/tid=27798] ppid=27792 vsize=867040 CPUtime=0
/proc/27794/task/27798/stat : 27798 (java) S 27792 27794 27079 0 -1 64 19 281 0 0 0 0 0 0 15 0 9 0 28270251 887848960 10155 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27794/tid=27799] ppid=27792 vsize=867040 CPUtime=0
/proc/27794/task/27799/stat : 27799 (java) S 27792 27794 27079 0 -1 64 12 281 0 0 0 0 0 0 16 0 9 0 28270251 887848960 10155 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27794/tid=27800] ppid=27792 vsize=867040 CPUtime=0
/proc/27794/task/27800/stat : 27800 (java) S 27792 27794 27079 0 -1 64 1 281 0 0 0 0 0 0 24 0 9 0 28270253 887848960 10155 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=27794/tid=27801] ppid=27792 vsize=867040 CPUtime=0.17
/proc/27794/task/27801/stat : 27801 (java) S 27792 27794 27079 0 -1 64 565 281 0 0 17 0 0 0 16 0 9 0 28270253 887848960 10155 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=27794/tid=27802] ppid=27792 vsize=867040 CPUtime=0
/proc/27794/task/27802/stat : 27802 (java) S 27792 27794 27079 0 -1 64 1 281 0 0 0 0 0 0 25 0 9 0 28270253 887848960 10155 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=27794/tid=27803] ppid=27792 vsize=867040 CPUtime=0
/proc/27794/task/27803/stat : 27803 (java) S 27792 27794 27079 0 -1 64 14 281 0 0 0 0 0 0 15 0 9 0 28270253 887848960 10156 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 0.97
Current children cumulated vsize (KiB) 867040

Child status: 0
Real time (s): 1.04458
CPU time (s): 1.02084
CPU user time (s): 0.91586
CPU system time (s): 0.104984
CPU usage (%): 97.7277
Max. virtual memory (cumulated for all children) (KiB): 867040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.91586
system time used= 0.104984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15920
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= 955
involuntary context switches= 1006

runsolver used 0.004999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node2 at 2009-07-12 17:20:26
IDJOB=2097286
IDBENCH=57096
IDSOLVER=774
FILE ID=node2/2097286-1247412026
PBS_JOBID= 9510639
Free space on /tmp= 66332 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/queensKnights/normalized-queensKnights-15-5-add.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-2097286-1247412026/watcher-2097286-1247412026 -o /tmp/evaluation-result-2097286-1247412026/solver-2097286-1247412026 -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-2097286-1247412026.xml

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

MD5SUM BENCH= f79a29efc9f65a8d195d10c1647254fc
RANDOM SEED=790281851

node2.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		: 3000.265
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		: 3000.265
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:       1747128 kB
Buffers:         32684 kB
Cached:         121200 kB
SwapCached:          0 kB
Active:         190700 kB
Inactive:        66600 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1747128 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2056 kB
Writeback:           0 kB
Mapped:         123908 kB
Slab:            36560 kB
Committed_AS:   991644 kB
PageTables:       2068 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= 66332 MiB
End job on node2 at 2009-07-12 17:20:27