Trace number 198380

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, and are wall clock time (not CPU 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 109 ESACUNSAT 1.03484 1.07202

DiagnosticValue
CHECKS164152
NODES11147

General information on the benchmark

Namepigeons/
pigeons-9.xml
MD5SUMb7eea48cb2d0ed4fbd06670a93637cec
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 benchmark0.080987
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables9
Number of constraints36
Maximum constraint arity2
Maximum domain size8
Number of constraints which are defined in extension0
Number of constraints which are defined in intension36
Global constraints used (with number of constraints)

Solver Data (download as text)

0.31	   
0.31	Abscon 109 (November, 2006)
0.31	   
0.31	   configuration
0.31	     name=esac.xml
0.34	   
0.34	   instance
0.34	     name=/tmp/evaluation/198380-1168128321/unknown.xml
0.37	   
0.37	   domains being loaded...
0.37	   
0.37	   variables being loaded...
0.40	     nbVariables=9  nbDomainTypes=1  minDomainSize=8  maxDomainSize=8
0.41	       =>  wckTime=0.095  cpuTime=0.09  mem=6M951
0.41	   
0.41	   predicates being loaded...
0.41	   
0.41	   constraints being loaded...
0.46	     nbConstraints=36  nbConvertedConstraints=36  nbConvertConstraintsChecks=64  nbExtensionStructures=1
0.46	     nbSharedExtensionStructures=35  nbConflictsStructures=1  nbSharedConflictsStructures=35
0.46	     nbSharedBinaryRepresentations=8  maxDegree=8  maxArity=2
0.46	       =>  wckTime=0.152  cpuTime=0.14  mem=7M927
0.49	   
0.49	   solver IterativeSystematicSolver being built... 
0.66	       =>  wckTime=0.35  cpuTime=0.27  mem=13M270
0.67	   
0.67	   preprocessing
0.67	     nbConstraintChecks=408  nbPropagations=91  nbRevisions=72  nbUselessRevisions=0  nbSingletonTests=14
0.67	     nbEffectiveSingletonTests=0  nbESACBranches=2  nbRemovedValues=0  detectedInconsistency=no
0.67	       =>  wckTime=0.0070  cpuTime=0.01  mem=13M270
0.69	   
0.69	   search
0.69	     run=0  nbConstraintChecks=483  nbPropagations=222  nbRevisions=239  nbUselessRevisions=24  nbAssignments=24
0.69	     nbFailedAssignments=10  nbBacktracks=10  nbVisitedNodes=45  nbRestartNogoods=0  mapSize=10  nbInferences=0
0.69	     nbTooLargeKeys=0
0.69	       =>  wckTime=0.027  cpuTime=0.02  mem=14M327
0.70	   
0.70	   search
0.70	     run=1  nbConstraintChecks=1091  nbPropagations=617  nbRevisions=697  nbUselessRevisions=79  nbAssignments=58
0.70	     nbFailedAssignments=24  nbBacktracks=25  nbVisitedNodes=107  nbRestartNogoods=4  mapSize=25  nbInferences=0
0.70	     nbTooLargeKeys=0
0.70	       =>  wckTime=0.036  cpuTime=0.02  mem=14M327
0.71	   
0.71	   search
0.71	     run=2  nbConstraintChecks=1866  nbPropagations=1249  nbRevisions=1447  nbUselessRevisions=170  nbAssignments=105
0.71	     nbFailedAssignments=44  nbBacktracks=47  nbVisitedNodes=194  nbRestartNogoods=7  mapSize=47  nbInferences=0
0.71	     nbTooLargeKeys=0
0.71	       =>  wckTime=0.046  cpuTime=0.03  mem=14M327
0.72	   
0.72	   search
0.72	     run=3  nbConstraintChecks=2705  nbPropagations=2183  nbRevisions=2488  nbUselessRevisions=262  nbAssignments=170
0.72	     nbFailedAssignments=67  nbBacktracks=81  nbVisitedNodes=309  nbRestartNogoods=12  mapSize=81  nbInferences=4
0.72	     nbTooLargeKeys=0
0.72	       =>  wckTime=0.061  cpuTime=0.04  mem=14M327
0.74	   
0.74	   search
0.74	     run=4  nbConstraintChecks=3858  nbPropagations=3544  nbRevisions=3939  nbUselessRevisions=356  nbAssignments=263
0.74	     nbFailedAssignments=99  nbBacktracks=131  nbVisitedNodes=474  nbRestartNogoods=15  mapSize=131  nbInferences=12
0.74	     nbTooLargeKeys=0
0.74	       =>  wckTime=0.074  cpuTime=0.05  mem=14M327
0.75	   
0.75	   search
0.75	     run=5  nbConstraintChecks=5623  nbPropagations=5572  nbRevisions=6020  nbUselessRevisions=451  nbAssignments=407
0.75	     nbFailedAssignments=147  nbBacktracks=206  nbVisitedNodes=731  nbRestartNogoods=19  mapSize=206  nbInferences=29
0.75	     nbTooLargeKeys=0
0.75	       =>  wckTime=0.092  cpuTime=0.06  mem=14M327
0.77	   
0.77	   search
0.77	     run=6  nbConstraintChecks=8312  nbPropagations=8641  nbRevisions=9055  nbUselessRevisions=547  nbAssignments=633
0.77	     nbFailedAssignments=214  nbBacktracks=320  nbVisitedNodes=1134  nbRestartNogoods=23  mapSize=320  nbInferences=72
0.77	     nbTooLargeKeys=0
0.77	       =>  wckTime=0.109  cpuTime=0.07  mem=14M327
0.79	   
0.79	   search
0.79	     run=7  nbConstraintChecks=12719  nbPropagations=13384  nbRevisions=13598  nbUselessRevisions=655  nbAssignments=992
0.79	     nbFailedAssignments=308  nbBacktracks=490  nbVisitedNodes=1768  nbRestartNogoods=25  mapSize=490  nbInferences=162
0.79	     nbTooLargeKeys=0
0.79	       =>  wckTime=0.131  cpuTime=0.09  mem=14M327
0.83	   
0.83	   search
0.83	     run=8  nbConstraintChecks=20642  nbPropagations=21085  nbRevisions=20621  nbUselessRevisions=764
0.83	     nbAssignments=1607  nbFailedAssignments=422  nbBacktracks=747  nbVisitedNodes=2840  nbRestartNogoods=32
0.83	     mapSize=747  nbInferences=397  nbTooLargeKeys=0
0.83	       =>  wckTime=0.172  cpuTime=0.12  mem=14M327
0.86	   
0.86	   search
0.86	     run=9  nbConstraintChecks=33143  nbPropagations=33471  nbRevisions=31471  nbUselessRevisions=874
0.86	     nbAssignments=2573  nbFailedAssignments=572  nbBacktracks=1132  nbVisitedNodes=4534  nbRestartNogoods=38
0.86	     mapSize=1132  nbInferences=825  nbTooLargeKeys=0
0.86	       =>  wckTime=0.201  cpuTime=0.14  mem=14M327
0.89	   
0.89	   search
0.89	     run=10  nbConstraintChecks=51862  nbPropagations=52793  nbRevisions=48048  nbUselessRevisions=984
0.89	     nbAssignments=3995  nbFailedAssignments=811  nbBacktracks=1708  nbVisitedNodes=7037  nbRestartNogoods=45
0.89	     mapSize=1708  nbInferences=1428  nbTooLargeKeys=0
0.89	       =>  wckTime=0.234  cpuTime=0.17  mem=14M327
0.94	   
0.94	   search
0.94	     run=11  nbConstraintChecks=84701  nbPropagations=83760  nbRevisions=74095  nbUselessRevisions=1179
0.94	     nbAssignments=6333  nbFailedAssignments=1112  nbBacktracks=2573  nbVisitedNodes=11111  nbRestartNogoods=57
0.94	     mapSize=2570  nbInferences=2594  nbTooLargeKeys=0
0.94	       =>  wckTime=0.276  cpuTime=0.21  mem=14M327
1.00	   
1.00	   search
1.00	     run=12  nbConstraintChecks=142020  nbPropagations=133803  nbRevisions=115553  nbUselessRevisions=1534
1.00	     nbAssignments=10046  nbFailedAssignments=1495  nbBacktracks=3870  nbVisitedNodes=17546  nbRestartNogoods=63
1.00	     mapSize=3861  nbInferences=4622  nbTooLargeKeys=0
1.00	       =>  wckTime=0.343  cpuTime=0.27  mem=14M327
1.03	   
1.03	   search
1.03	     run=13  nbConstraintChecks=163744  nbPropagations=190012  nbRevisions=162101  nbUselessRevisions=1981
1.03	     nbAssignments=11147  nbFailedAssignments=1563  nbBacktracks=4213  nbVisitedNodes=19444  nbRestartNogoods=65
1.03	     mapSize=4194  nbInferences=5313  nbTooLargeKeys=0
1.03	       =>  wckTime=0.367  cpuTime=0.29  mem=14M327
1.03	   
1.03	   global
1.03	     nbConstraintChecks=164152  nbPropagations=190103  nbRevisions=162173  nbUselessRevisions=1981  nbRestartNogoods=65
1.03	     solvingWckTime=0.368  solvingCpuTime=0.29  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
1.03	     globalCpuTime=0.61
1.03	       =>  wckTime=0.72  cpuTime=0.56  mem=14M327
1.03	   
1.03	s UNSATISFIABLE
1.03	d NODES 11147
1.03	d CHECKS 164152
1.03	   
1.03	   totalWckTime=0.8  totalCpuTime=0.62

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node26/watcher-198380-1168128321 -o ROOT/results/node26/solver-198380-1168128321 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/198380-1168128321/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 0.93 0.98 1.08 4/95 3051
/proc/meminfo: memFree=1643576/2055920 swapFree=4192812/4192956
[pid=3050] ppid=3048 vsize=18540 CPUtime=0
/proc/3050/stat : 3050 (runsolver) R 3048 3050 2820 0 -1 4194368 17 0 0 0 0 0 0 0 19 0 1 0 161226337 18984960 279 18446744073709551615 4194304 4267372 548682068960 18446744073709551615 269028486439 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/3050/statm: 4635 279 244 17 0 2626 0

[startup+0.11004 s]
/proc/loadavg: 0.93 0.98 1.08 4/95 3051
/proc/meminfo: memFree=1643576/2055920 swapFree=4192812/4192956
[pid=3050] ppid=3048 vsize=914988 CPUtime=0.09
/proc/3050/stat : 3050 (java) R 3048 3050 2820 0 -1 0 3061 0 1 0 8 1 0 0 19 0 8 0 161226337 936947712 2807 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 13025364 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/3050/statm: 228747 2807 1450 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.518083 s]
/proc/loadavg: 0.93 0.98 1.08 4/95 3051
/proc/meminfo: memFree=1643576/2055920 swapFree=4192812/4192956
[pid=3050] ppid=3048 vsize=915460 CPUtime=0.5
/proc/3050/stat : 3050 (java) R 3048 3050 2820 0 -1 0 6711 0 1 0 46 4 0 0 18 0 8 0 161226337 937431040 6449 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/3050/statm: 228865 6449 2390 14 0 215335 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 915460

Child status: 0
Real time (s): 1.07202
CPU time (s): 1.03484
CPU user time (s): 0.966853
CPU system time (s): 0.067989
CPU usage (%): 96.5322
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.966853
system time used= 0.067989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8608
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= 920
involuntary context switches= 1140

runsolver used 0.003999 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node26 on Sun Jan  7 00:05:21 UTC 2007


IDJOB= 198380
IDBENCH= 3552
FILE ID= node26/198380-1168128321

PBS_JOBID= 3477898

Free space on /tmp= 66535 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pigeons/pigeons-9.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/198380-1168128321/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-198380-1168128321 -o ROOT/results/node26/solver-198380-1168128321 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/198380-1168128321/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  b7eea48cb2d0ed4fbd06670a93637cec

RANDOM SEED= 630408673

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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:       1644248 kB
Buffers:         41400 kB
Cached:         201020 kB
SwapCached:          0 kB
Active:         193104 kB
Inactive:       161512 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1644248 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5420 kB
Writeback:           0 kB
Mapped:         140204 kB
Slab:            41612 kB
Committed_AS:  3743256 kB
PageTables:       2472 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= 66535 MiB



End job on node26 on Sun Jan  7 00:05:22 UTC 2007