Trace number 218917

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 1.48277 1.55813

DiagnosticValue
CHECKS84604
NODES3788

General information on the benchmark

NamechessboardColoration/
cc-7-7-2.xml
MD5SUM1380713e8b92d45d51085dc26e0f4ecf
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.135978
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables49
Number of constraints441
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension441
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/218917-1168253692/unknown.xml
0.37	   
0.37	   domains being loaded...
0.38	   
0.38	   variables being loaded...
0.40	     nbVariables=49  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2
0.40	       =>  wckTime=0.09  cpuTime=0.08  mem=6M951
0.40	   
0.40	   predicates being loaded...
0.41	   
0.41	   constraints being loaded...
0.67	     nbConstraints=441  nbConflictsStructures=1  nbSharedConflictsStructures=440  nbSharedBinaryRepresentations=0
0.67	     nbEvaluationManagers=1  nbSharedEvaluationManagers=440  maxDegree=36  maxArity=4
0.67	       =>  wckTime=0.351  cpuTime=0.25  mem=15M728
0.71	   
0.71	   solver IterativeSystematicSolver being built... 
0.91	       =>  wckTime=0.598  cpuTime=0.42  mem=17M672
0.95	   
0.95	   preprocessing
0.95	     nbConstraintChecks=205  nbValidityChecks=142  nbPropagations=137  nbRevisions=286  nbUselessRevisions=234
0.95	     nbSingletonTests=60  nbEffectiveSingletonTests=0  nbESACBranches=4  nbRemovedValues=0  detectedInconsistency=no
0.95	       =>  wckTime=0.036  cpuTime=0.02  mem=17M672
0.97	   
0.97	   search
0.97	     run=0  nbConstraintChecks=230  nbValidityChecks=203  nbPropagations=173  nbRevisions=482  nbUselessRevisions=380
0.97	     nbAssignments=21  nbFailedAssignments=4  nbBacktracks=11  nbVisitedNodes=30  nbRestartNogoods=0  mapSize=7
0.97	     nbInferences=0  nbTooLargeKeys=0
0.97	       =>  wckTime=0.056  cpuTime=0.03  mem=18M680
1.00	   
1.00	   search
1.00	     run=1  nbConstraintChecks=834  nbValidityChecks=828  nbPropagations=403  nbRevisions=1468  nbUselessRevisions=1204
1.00	     nbAssignments=61  nbFailedAssignments=10  nbBacktracks=34  nbVisitedNodes=80  nbRestartNogoods=1  mapSize=15
1.00	     nbInferences=0  nbTooLargeKeys=0
1.00	       =>  wckTime=0.082  cpuTime=0.04  mem=18M680
1.01	   
1.01	   search
1.01	     run=2  nbConstraintChecks=1342  nbValidityChecks=1525  nbPropagations=702  nbRevisions=2939
1.01	     nbUselessRevisions=2443  nbAssignments=112  nbFailedAssignments=16  nbBacktracks=60  nbVisitedNodes=128
1.01	     nbRestartNogoods=3  mapSize=24  nbInferences=0  nbTooLargeKeys=0
1.01	       =>  wckTime=0.095  cpuTime=0.05  mem=18M680
1.02	   
1.02	   search
1.02	     run=3  nbConstraintChecks=1899  nbValidityChecks=2264  nbPropagations=1102  nbRevisions=4906
1.02	     nbUselessRevisions=4067  nbAssignments=168  nbFailedAssignments=29  nbBacktracks=94  nbVisitedNodes=205
1.02	     nbRestartNogoods=4  mapSize=43  nbInferences=0  nbTooLargeKeys=0
1.02	       =>  wckTime=0.107  cpuTime=0.06  mem=18M680
1.03	   
1.03	   search
1.03	     run=4  nbConstraintChecks=2594  nbValidityChecks=3361  nbPropagations=1588  nbRevisions=7638
1.03	     nbUselessRevisions=6358  nbAssignments=233  nbFailedAssignments=36  nbBacktracks=146  nbVisitedNodes=283
1.03	     nbRestartNogoods=6  mapSize=55  nbInferences=0  nbTooLargeKeys=0
1.03	       =>  wckTime=0.117  cpuTime=0.06  mem=18M680
1.05	   
1.05	   search
1.05	     run=5  nbConstraintChecks=4116  nbValidityChecks=5699  nbPropagations=2260  nbRevisions=11930
1.05	     nbUselessRevisions=9998  nbAssignments=338  nbFailedAssignments=49  nbBacktracks=229  nbVisitedNodes=417
1.05	     nbRestartNogoods=7  mapSize=80  nbInferences=0  nbTooLargeKeys=0
1.05	       =>  wckTime=0.133  cpuTime=0.08  mem=18M680
1.07	   
1.07	   search
1.07	     run=6  nbConstraintChecks=6139  nbValidityChecks=8894  nbPropagations=3225  nbRevisions=18408
1.07	     nbUselessRevisions=15495  nbAssignments=495  nbFailedAssignments=72  nbBacktracks=342  nbVisitedNodes=602
1.07	     nbRestartNogoods=11  mapSize=119  nbInferences=0  nbTooLargeKeys=0
1.07	       =>  wckTime=0.155  cpuTime=0.1  mem=18M680
1.10	   
1.10	   search
1.10	     run=7  nbConstraintChecks=10427  nbValidityChecks=15385  nbPropagations=4662  nbRevisions=29113
1.10	     nbUselessRevisions=24665  nbAssignments=713  nbFailedAssignments=107  nbBacktracks=516  nbVisitedNodes=885
1.10	     nbRestartNogoods=13  mapSize=181  nbInferences=0  nbTooLargeKeys=0
1.10	       =>  wckTime=0.19  cpuTime=0.13  mem=18M680
1.15	   
1.15	   search
1.15	     run=8  nbConstraintChecks=16865  nbValidityChecks=25403  nbPropagations=6837  nbRevisions=46296
1.15	     nbUselessRevisions=39468  nbAssignments=1030  nbFailedAssignments=156  nbBacktracks=772  nbVisitedNodes=1300
1.15	     nbRestartNogoods=16  mapSize=275  nbInferences=0  nbTooLargeKeys=0
1.15	       =>  wckTime=0.24  cpuTime=0.17  mem=18M680
1.24	   
1.24	   search
1.24	     run=9  nbConstraintChecks=29639  nbValidityChecks=45728  nbPropagations=10421  nbRevisions=76750
1.24	     nbUselessRevisions=65826  nbAssignments=1509  nbFailedAssignments=243  nbBacktracks=1157  nbVisitedNodes=1961
1.24	     nbRestartNogoods=20  mapSize=452  nbInferences=0  nbTooLargeKeys=0
1.24	       =>  wckTime=0.321  cpuTime=0.23  mem=18M680
1.33	   
1.33	   search
1.33	     run=10  nbConstraintChecks=46277  nbValidityChecks=72143  nbPropagations=15916  nbRevisions=124272
1.33	     nbUselessRevisions=106942  nbAssignments=2222  nbFailedAssignments=365  nbBacktracks=1739  nbVisitedNodes=2922
1.33	     nbRestartNogoods=25  mapSize=695  nbInferences=0  nbTooLargeKeys=0
1.33	       =>  wckTime=0.419  cpuTime=0.31  mem=18M680
1.42	   
1.42	   INFO : Stopping hyperNogood (mapSize=1001, nbTooLargekeys=0, mem=18M680)
1.45	   
1.45	   search
1.45	     run=11  nbConstraintChecks=73016  nbValidityChecks=114219  nbPropagations=24467  nbRevisions=199225
1.45	     nbUselessRevisions=171773  nbAssignments=3300  nbFailedAssignments=571  nbBacktracks=2605  nbVisitedNodes=4415
1.45	     nbRestartNogoods=30
1.45	       =>  wckTime=0.535  cpuTime=0.43  mem=18M680
1.50	   
1.50	   search
1.50	     run=12  nbConstraintChecks=84399  nbValidityChecks=132329  nbPropagations=34309  nbRevisions=286125
1.50	     nbUselessRevisions=246992  nbAssignments=3788  nbFailedAssignments=666  nbBacktracks=2999  nbVisitedNodes=5083
1.50	     nbRestartNogoods=32
1.50	       =>  wckTime=0.584  cpuTime=0.47  mem=18M680
1.50	   
1.50	   global
1.50	     nbConstraintChecks=84604  nbValidityChecks=132471  nbPropagations=34446  nbRevisions=286411
1.50	     nbUselessRevisions=247226  nbRestartNogoods=32  solvingWckTime=0.586  solvingCpuTime=0.47  expiredTime=no
1.50	     totalExploration=yes  nbFoundSolutions=0  globalCpuTime=0.95
1.50	       =>  wckTime=1.185  cpuTime=0.89  mem=18M680
1.50	   
1.50	s UNSATISFIABLE
1.50	d NODES 3788
1.50	d CHECKS 84604
1.50	   
1.50	   totalWckTime=1.266  totalCpuTime=0.96

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/node9/watcher-218917-1168253692 -o ROOT/results/node9/solver-218917-1168253692 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/218917-1168253692/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: 2.07 1.93 1.87 4/93 17525
/proc/meminfo: memFree=1763816/2055920 swapFree=4191880/4192956
[pid=17524] ppid=17522 vsize=18540 CPUtime=0
/proc/17524/stat : 17524 (runsolver) R 17522 17524 15782 0 -1 4194368 17 0 0 0 0 0 0 0 20 0 1 0 173764671 18984960 279 18446744073709551615 4194304 4267372 548682068944 18446744073709551615 215418989863 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/17524/statm: 4635 279 244 17 0 2626 0

[startup+0.109008 s]
/proc/loadavg: 2.07 1.93 1.87 4/93 17525
/proc/meminfo: memFree=1763816/2055920 swapFree=4191880/4192956
[pid=17524] ppid=17522 vsize=914988 CPUtime=0.09
/proc/17524/stat : 17524 (java) R 17522 17524 15782 0 -1 0 3018 0 1 0 8 1 0 0 17 0 8 0 173764671 936947712 2764 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4155477080 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/17524/statm: 228747 2764 1435 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.517055 s]
/proc/loadavg: 2.07 1.93 1.87 4/93 17525
/proc/meminfo: memFree=1763816/2055920 swapFree=4191880/4192956
[pid=17524] ppid=17522 vsize=915328 CPUtime=0.49
/proc/17524/stat : 17524 (java) R 17522 17524 15782 0 -1 0 7191 0 1 0 46 3 0 0 18 0 8 0 173764671 937295872 6930 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4072926600 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/17524/statm: 228832 6930 2144 14 0 215302 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915328

[startup+1.33814 s]
/proc/loadavg: 2.07 1.93 1.87 4/100 17532
/proc/meminfo: memFree=1736688/2055920 swapFree=4191880/4192956
[pid=17524] ppid=17522 vsize=915460 CPUtime=1.3
/proc/17524/stat : 17524 (java) R 17522 17524 15782 0 -1 0 9572 0 1 0 123 7 0 0 18 0 8 0 173764671 937431040 9310 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4073916806 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/17524/statm: 228865 9310 2543 14 0 215335 0
[pid=17524/tid=17526] ppid=17522 vsize=915460 CPUtime=0.03
/proc/17524/task/17526/stat : 17526 (java) S 17522 17524 15782 0 -1 64 217 0 0 0 3 0 0 0 16 0 8 0 173764675 937431040 9310 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=17524/tid=17527] ppid=17522 vsize=915460 CPUtime=0
/proc/17524/task/17527/stat : 17527 (java) S 17522 17524 15782 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 173764675 937431040 9310 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=17524/tid=17528] ppid=17522 vsize=915460 CPUtime=0
/proc/17524/task/17528/stat : 17528 (java) S 17522 17524 15782 0 -1 64 5 0 0 0 0 0 0 0 15 0 8 0 173764675 937431040 9310 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=17524/tid=17529] ppid=17522 vsize=915460 CPUtime=0
/proc/17524/task/17529/stat : 17529 (java) S 17522 17524 15782 0 -1 64 1 0 0 0 0 0 0 0 18 0 8 0 173764679 937431040 9310 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=17524/tid=17530] ppid=17522 vsize=915460 CPUtime=0.27
/proc/17524/task/17530/stat : 17530 (java) R 17522 17524 15782 0 -1 64 417 0 0 0 27 0 0 0 20 0 8 0 173764679 937431040 9310 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=17524/tid=17531] ppid=17522 vsize=915460 CPUtime=0
/proc/17524/task/17531/stat : 17531 (java) S 17522 17524 15782 0 -1 64 0 0 0 0 0 0 0 0 19 0 8 0 173764679 937431040 9310 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=17524/tid=17532] ppid=17522 vsize=915460 CPUtime=0
/proc/17524/task/17532/stat : 17532 (java) S 17522 17524 15782 0 -1 64 0 0 0 0 0 0 0 0 15 0 8 0 173764679 937431040 9310 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 915460

Child status: 0
Real time (s): 1.55813
CPU time (s): 1.48277
CPU user time (s): 1.40179
CPU system time (s): 0.080987
CPU usage (%): 95.1637
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.40179
system time used= 0.080987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9680
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= 915
involuntary context switches= 1155

runsolver used 0.006998 s user time and 0.013997 s system time

The end

Launcher Data (download as text)

Begin job on node9 on Mon Jan  8 10:54:54 UTC 2007


IDJOB= 218917
IDBENCH= 5266
FILE ID= node9/218917-1168253692

PBS_JOBID= 3481676

Free space on /tmp= 66545 MiB

BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-7-7-2.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/218917-1168253692/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-218917-1168253692 -o ROOT/results/node9/solver-218917-1168253692 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/218917-1168253692/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  1380713e8b92d45d51085dc26e0f4ecf

RANDOM SEED= 434681498

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		: 3000.231
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		: 3000.231
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:       1764232 kB
Buffers:         38304 kB
Cached:          89332 kB
SwapCached:        408 kB
Active:         176628 kB
Inactive:        56432 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1764232 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            1920 kB
Writeback:           0 kB
Mapped:         127032 kB
Slab:            43120 kB
Committed_AS:  5722252 kB
PageTables:       2460 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= 66545 MiB



End job on node9 on Mon Jan  8 10:54:57 UTC 2007