Trace number 218930

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 2.29365 2.33316

DiagnosticValue
CHECKS79545
NODES3621

General information on the benchmark

NamechessboardColoration/
cc-10-10-2.xml
MD5SUMa92776cdff8557438c3e6ed66838915a
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 benchmark0.219966
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables100
Number of constraints2025
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2025
Global constraints used (with number of constraints)

Solver Data (download as text)

0.32	   
0.32	Abscon 109 (November, 2006)
0.32	   
0.32	   configuration
0.32	     name=esac.xml
0.35	   
0.35	   instance
0.35	     name=/tmp/evaluation/218930-1168253713/unknown.xml
0.38	   
0.38	   domains being loaded...
0.39	   
0.39	   variables being loaded...
0.42	     nbVariables=100  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2
0.42	       =>  wckTime=0.1  cpuTime=0.1  mem=6M951
0.42	   
0.42	   predicates being loaded...
0.42	   
0.42	   constraints being loaded...
1.04	     nbConstraints=2025  nbConflictsStructures=1  nbSharedConflictsStructures=2024  nbSharedBinaryRepresentations=0
1.04	     nbEvaluationManagers=1  nbSharedEvaluationManagers=2024  maxDegree=81  maxArity=4
1.04	       =>  wckTime=0.718  cpuTime=0.58  mem=45M958
1.11	   
1.11	   solver IterativeSystematicSolver being built... 
1.36	       =>  wckTime=1.045  cpuTime=0.78  mem=30M433
1.44	   
1.44	   preprocessing
1.44	     nbConstraintChecks=443  nbValidityChecks=393  nbPropagations=255  nbRevisions=746  nbUselessRevisions=651
1.44	     nbSingletonTests=105  nbEffectiveSingletonTests=0  nbESACBranches=5  nbRemovedValues=0  detectedInconsistency=no
1.44	       =>  wckTime=0.074  cpuTime=0.05  mem=31M406
1.49	   
1.49	   search
1.49	     run=0  nbConstraintChecks=1785  nbValidityChecks=513  nbPropagations=311  nbRevisions=1945  nbUselessRevisions=1673
1.49	     nbAssignments=37  nbFailedAssignments=9  nbBacktracks=10  nbVisitedNodes=48  nbRestartNogoods=0  mapSize=9
1.49	     nbInferences=0  nbTooLargeKeys=0
1.49	       =>  wckTime=0.122  cpuTime=0.08  mem=31M406
1.50	   
1.50	   search
1.50	     run=1  nbConstraintChecks=2587  nbValidityChecks=1421  nbPropagations=680  nbRevisions=4588
1.50	     nbUselessRevisions=3979  nbAssignments=79  nbFailedAssignments=13  nbBacktracks=30  nbVisitedNodes=98
1.50	     nbRestartNogoods=1  mapSize=16  nbInferences=0  nbTooLargeKeys=0
1.50	       =>  wckTime=0.136  cpuTime=0.09  mem=31M406
1.51	   
1.51	   search
1.51	     run=2  nbConstraintChecks=3163  nbValidityChecks=2246  nbPropagations=1117  nbRevisions=7763
1.51	     nbUselessRevisions=6748  nbAssignments=131  nbFailedAssignments=20  nbBacktracks=52  nbVisitedNodes=161
1.51	     nbRestartNogoods=2  mapSize=25  nbInferences=0  nbTooLargeKeys=0
1.51	       =>  wckTime=0.148  cpuTime=0.1  mem=31M406
1.53	   
1.53	   search
1.53	     run=3  nbConstraintChecks=3877  nbValidityChecks=3336  nbPropagations=1642  nbRevisions=11656
1.53	     nbUselessRevisions=10134  nbAssignments=180  nbFailedAssignments=28  nbBacktracks=85  nbVisitedNodes=226
1.53	     nbRestartNogoods=4  mapSize=39  nbInferences=0  nbTooLargeKeys=0
1.53	       =>  wckTime=0.162  cpuTime=0.11  mem=31M406
1.54	   
1.54	   search
1.54	     run=4  nbConstraintChecks=4731  nbValidityChecks=4707  nbPropagations=2270  nbRevisions=16489
1.54	     nbUselessRevisions=14338  nbAssignments=250  nbFailedAssignments=39  nbBacktracks=137  nbVisitedNodes=314
1.54	     nbRestartNogoods=6  mapSize=55  nbInferences=0  nbTooLargeKeys=0
1.54	       =>  wckTime=0.178  cpuTime=0.13  mem=31M406
1.57	   
1.57	   search
1.57	     run=5  nbConstraintChecks=5904  nbValidityChecks=6461  nbPropagations=3074  nbRevisions=22467
1.57	     nbUselessRevisions=19491  nbAssignments=354  nbFailedAssignments=57  nbBacktracks=212  nbVisitedNodes=447
1.57	     nbRestartNogoods=8  mapSize=82  nbInferences=0  nbTooLargeKeys=0
1.57	       =>  wckTime=0.201  cpuTime=0.15  mem=31M406
1.61	   
1.61	   search
1.61	     run=6  nbConstraintChecks=8929  nbValidityChecks=11001  nbPropagations=4203  nbRevisions=31259
1.61	     nbUselessRevisions=27087  nbAssignments=500  nbFailedAssignments=80  nbBacktracks=327  nbVisitedNodes=645
1.61	     nbRestartNogoods=10  mapSize=131  nbInferences=0  nbTooLargeKeys=0
1.61	       =>  wckTime=0.242  cpuTime=0.19  mem=31M406
1.66	   
1.66	   search
1.66	     run=7  nbConstraintChecks=12974  nbValidityChecks=17349  nbPropagations=5839  nbRevisions=44152
1.66	     nbUselessRevisions=38170  nbAssignments=722  nbFailedAssignments=122  nbBacktracks=501  nbVisitedNodes=946
1.66	     nbRestartNogoods=13  mapSize=207  nbInferences=0  nbTooLargeKeys=0
1.66	       =>  wckTime=0.298  cpuTime=0.24  mem=31M406
1.74	   
1.74	   search
1.74	     run=8  nbConstraintChecks=20061  nbValidityChecks=28301  nbPropagations=8323  nbRevisions=64172
1.74	     nbUselessRevisions=55330  nbAssignments=1063  nbFailedAssignments=194  nbBacktracks=758  nbVisitedNodes=1409
1.74	     nbRestartNogoods=16  mapSize=324  nbInferences=0  nbTooLargeKeys=0
1.74	       =>  wckTime=0.376  cpuTime=0.31  mem=31M406
1.88	   
1.88	   search
1.88	     run=9  nbConstraintChecks=32825  nbValidityChecks=48744  nbPropagations=12263  nbRevisions=97197
1.88	     nbUselessRevisions=83720  nbAssignments=1565  nbFailedAssignments=299  nbBacktracks=1146  nbVisitedNodes=2099
1.88	     nbRestartNogoods=21  mapSize=509  nbInferences=0  nbTooLargeKeys=0
1.88	       =>  wckTime=0.515  cpuTime=0.43  mem=31M406
2.04	   
2.04	   search
2.04	     run=10  nbConstraintChecks=48258  nbValidityChecks=73082  nbPropagations=17986  nbRevisions=145992
2.04	     nbUselessRevisions=125706  nbAssignments=2277  nbFailedAssignments=424  nbBacktracks=1726  nbVisitedNodes=3048
2.04	     nbRestartNogoods=24  mapSize=742  nbInferences=0  nbTooLargeKeys=0
2.04	       =>  wckTime=0.672  cpuTime=0.57  mem=31M406
2.19	   
2.19	   INFO : Stopping hyperNogood (mapSize=1008, nbTooLargekeys=0, mem=31M406)
2.24	   
2.24	   search
2.24	     run=11  nbConstraintChecks=72029  nbValidityChecks=111184  nbPropagations=26511  nbRevisions=219523
2.24	     nbUselessRevisions=189047  nbAssignments=3328  nbFailedAssignments=603  nbBacktracks=2590  nbVisitedNodes=4459
2.24	     nbRestartNogoods=27
2.24	       =>  wckTime=0.873  cpuTime=0.77  mem=31M406
2.30	   
2.30	   search
2.30	     run=12  nbConstraintChecks=79102  nbValidityChecks=122369  nbPropagations=35824  nbRevisions=300369
2.30	     nbUselessRevisions=258689  nbAssignments=3621  nbFailedAssignments=662  nbBacktracks=2825  nbVisitedNodes=4862
2.30	     nbRestartNogoods=32
2.30	       =>  wckTime=0.935  cpuTime=0.83  mem=31M406
2.30	   
2.30	   global
2.30	     nbConstraintChecks=79545  nbValidityChecks=122762  nbPropagations=36079  nbRevisions=301115
2.30	     nbUselessRevisions=259340  nbRestartNogoods=32  solvingWckTime=0.936  solvingCpuTime=0.83  expiredTime=no
2.30	     totalExploration=yes  nbFoundSolutions=0  globalCpuTime=1.65
2.30	       =>  wckTime=1.983  cpuTime=1.61  mem=31M406
2.30	   
2.30	s UNSATISFIABLE
2.30	d NODES 3621
2.30	d CHECKS 79545
2.30	   
2.30	   totalWckTime=2.066  totalCpuTime=1.65

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/node7/watcher-218930-1168253713 -o ROOT/results/node7/solver-218930-1168253713 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/218930-1168253713/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: 1.78 1.96 1.98 4/87 19370
/proc/meminfo: memFree=1661520/2055920 swapFree=4192812/4192956
[pid=19369] ppid=19367 vsize=1784 CPUtime=0
/proc/19369/stat : 19369 (java) R 19367 19369 19231 0 -1 0 169 0 0 0 0 0 0 0 19 0 1 0 173766824 1826816 140 18446744073709551615 134512640 134570532 4294956624 18446744073709551615 4294960144 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/19369/statm: 446 140 106 14 0 91 0

[startup+0.104875 s]
/proc/loadavg: 1.78 1.96 1.98 4/87 19370
/proc/meminfo: memFree=1661520/2055920 swapFree=4192812/4192956
[pid=19369] ppid=19367 vsize=914988 CPUtime=0.08
/proc/19369/stat : 19369 (java) R 19367 19369 19231 0 -1 0 2987 0 1 0 7 1 0 0 18 0 8 0 173766824 936947712 2733 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 10380504 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/19369/statm: 228747 2733 1426 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.512914 s]
/proc/loadavg: 1.78 1.96 1.98 4/87 19370
/proc/meminfo: memFree=1661520/2055920 swapFree=4192812/4192956
[pid=19369] ppid=19367 vsize=915328 CPUtime=0.49
/proc/19369/stat : 19369 (java) R 19367 19369 19231 0 -1 0 6818 0 1 0 44 5 0 0 18 0 8 0 173766824 937295872 6557 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4073553021 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/19369/statm: 228832 6557 2144 14 0 215302 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915328

[startup+1.334 s]
/proc/loadavg: 1.88 1.97 1.99 3/94 19377
/proc/meminfo: memFree=1604632/2055920 swapFree=4192812/4192956
[pid=19369] ppid=19367 vsize=915756 CPUtime=1.3
/proc/19369/stat : 19369 (java) R 19367 19369 19231 0 -1 0 16991 0 1 0 113 17 0 0 24 0 8 0 173766824 937734144 16729 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4154575699 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/19369/statm: 228939 16729 2528 14 0 215409 0
[pid=19369/tid=19371] ppid=19367 vsize=915756 CPUtime=0.06
/proc/19369/task/19371/stat : 19371 (java) S 19367 19369 19231 0 -1 64 691 0 0 0 6 0 0 0 17 0 8 0 173766828 937734144 16729 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=19369/tid=19372] ppid=19367 vsize=915756 CPUtime=0
/proc/19369/task/19372/stat : 19372 (java) S 19367 19369 19231 0 -1 64 10 0 0 0 0 0 0 0 16 0 8 0 173766828 937734144 16729 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=19369/tid=19373] ppid=19367 vsize=915756 CPUtime=0
/proc/19369/task/19373/stat : 19373 (java) S 19367 19369 19231 0 -1 64 5 0 0 0 0 0 0 0 16 0 8 0 173766828 937734144 16729 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=19369/tid=19374] ppid=19367 vsize=915756 CPUtime=0
/proc/19369/task/19374/stat : 19374 (java) S 19367 19369 19231 0 -1 64 0 0 0 0 0 0 0 0 18 0 8 0 173766832 937734144 16729 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=19369/tid=19375] ppid=19367 vsize=915756 CPUtime=0.24
/proc/19369/task/19375/stat : 19375 (java) S 19367 19369 19231 0 -1 64 450 0 0 0 23 1 0 0 15 0 8 0 173766832 937734144 16729 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=19369/tid=19376] ppid=19367 vsize=915756 CPUtime=0
/proc/19369/task/19376/stat : 19376 (java) S 19367 19369 19231 0 -1 64 1 0 0 0 0 0 0 0 19 0 8 0 173766832 937734144 16729 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=19369/tid=19377] ppid=19367 vsize=915756 CPUtime=0
/proc/19369/task/19377/stat : 19377 (java) S 19367 19369 19231 0 -1 64 1 0 0 0 0 0 0 0 15 0 8 0 173766832 937734144 16729 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) 915756

Child status: 0
Real time (s): 2.33316
CPU time (s): 2.29365
CPU user time (s): 2.09168
CPU system time (s): 0.201969
CPU usage (%): 98.3066
Max. virtual memory (cumulated for all children) (KiB): 915756

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.09168
system time used= 0.201969
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17090
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= 1452
involuntary context switches= 1692

runsolver used 0.005999 s user time and 0.018997 s system time

The end

Launcher Data (download as text)

Begin job on node7 on Mon Jan  8 10:55:14 UTC 2007


IDJOB= 218930
IDBENCH= 5267
FILE ID= node7/218930-1168253713

PBS_JOBID= 3481712

Free space on /tmp= 66550 MiB

BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-10-10-2.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/218930-1168253713/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-218930-1168253713 -o ROOT/results/node7/solver-218930-1168253713 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/218930-1168253713/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  a92776cdff8557438c3e6ed66838915a

RANDOM SEED= 183142965

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		: 3000.220
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		: 3000.220
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:       1662000 kB
Buffers:         42408 kB
Cached:         104676 kB
SwapCached:          0 kB
Active:         278508 kB
Inactive:        63416 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1662000 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2448 kB
Writeback:           0 kB
Mapped:         214944 kB
Slab:            36484 kB
Committed_AS:  5300408 kB
PageTables:       2636 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= 66550 MiB



End job on node7 on Mon Jan  8 10:55:16 UTC 2007