Trace number 218943

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 1.16182 1.22535

DiagnosticValue
CHECKS61490
NODES3034

General information on the benchmark

NamechessboardColoration/
cc-6-6-2.xml
MD5SUMa8c14c438e718ff6d9298db1d4701e5f
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 benchmark0.142978
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables36
Number of constraints225
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension225
Global constraints used (with number of constraints)

Solver Data (download as text)

0.29	   
0.29	Abscon 109 (November, 2006)
0.29	   
0.29	   configuration
0.29	     name=esac.xml
0.32	   
0.32	   instance
0.32	     name=/tmp/evaluation/218943-1168253738/unknown.xml
0.35	   
0.35	   domains being loaded...
0.35	   
0.35	   variables being loaded...
0.38	     nbVariables=36  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2
0.38	       =>  wckTime=0.085  cpuTime=0.08  mem=6M951
0.38	   
0.38	   predicates being loaded...
0.38	   
0.38	   constraints being loaded...
0.55	     nbConstraints=225  nbConflictsStructures=1  nbSharedConflictsStructures=224  nbSharedBinaryRepresentations=0
0.55	     nbEvaluationManagers=1  nbSharedEvaluationManagers=224  maxDegree=25  maxArity=4
0.55	       =>  wckTime=0.259  cpuTime=0.19  mem=11M844
0.59	   
0.59	   solver IterativeSystematicSolver being built... 
0.76	       =>  wckTime=0.471  cpuTime=0.34  mem=15M567
0.79	   
0.79	   preprocessing
0.79	     nbConstraintChecks=125  nbValidityChecks=77  nbPropagations=94  nbRevisions=172  nbUselessRevisions=139
0.79	     nbSingletonTests=39  nbEffectiveSingletonTests=0  nbESACBranches=3  nbRemovedValues=0  detectedInconsistency=no
0.79	       =>  wckTime=0.024  cpuTime=0.01  mem=16M543
0.81	   
0.81	   search
0.81	     run=0  nbConstraintChecks=253  nbValidityChecks=298  nbPropagations=154  nbRevisions=431  nbUselessRevisions=341
0.81	     nbAssignments=23  nbFailedAssignments=6  nbBacktracks=12  nbVisitedNodes=33  nbRestartNogoods=0  mapSize=6
0.81	     nbInferences=0  nbTooLargeKeys=0
0.81	       =>  wckTime=0.047  cpuTime=0.03  mem=16M543
0.84	   
0.84	   search
0.84	     run=1  nbConstraintChecks=1282  nbValidityChecks=1401  nbPropagations=393  nbRevisions=1740
0.84	     nbUselessRevisions=1435  nbAssignments=63  nbFailedAssignments=13  nbBacktracks=31  nbVisitedNodes=88
0.84	     nbRestartNogoods=3  mapSize=18  nbInferences=0  nbTooLargeKeys=0
0.84	       =>  wckTime=0.077  cpuTime=0.04  mem=16M543
0.85	   
0.85	   search
0.85	     run=2  nbConstraintChecks=1515  nbValidityChecks=1727  nbPropagations=692  nbRevisions=3269
0.85	     nbUselessRevisions=2703  nbAssignments=109  nbFailedAssignments=19  nbBacktracks=54  nbVisitedNodes=130
0.85	     nbRestartNogoods=6  mapSize=25  nbInferences=0  nbTooLargeKeys=0
0.85	       =>  wckTime=0.088  cpuTime=0.05  mem=16M543
0.86	   
0.86	   search
0.86	     run=3  nbConstraintChecks=2585  nbValidityChecks=3185  nbPropagations=1096  nbRevisions=5764
0.86	     nbUselessRevisions=4799  nbAssignments=159  nbFailedAssignments=27  nbBacktracks=87  nbVisitedNodes=198
0.86	     nbRestartNogoods=8  mapSize=41  nbInferences=0  nbTooLargeKeys=0
0.86	       =>  wckTime=0.097  cpuTime=0.06  mem=16M543
0.87	   
0.87	   search
0.87	     run=4  nbConstraintChecks=3932  nbValidityChecks=5220  nbPropagations=1685  nbRevisions=9623
0.87	     nbUselessRevisions=8018  nbAssignments=244  nbFailedAssignments=48  nbBacktracks=142  nbVisitedNodes=314
0.88	     nbRestartNogoods=10  mapSize=69  nbInferences=0  nbTooLargeKeys=0
0.88	       =>  wckTime=0.11  cpuTime=0.07  mem=16M543
0.89	   
0.89	   search
0.89	     run=5  nbConstraintChecks=5978  nbValidityChecks=8251  nbPropagations=2509  nbRevisions=15375
0.89	     nbUselessRevisions=12869  nbAssignments=365  nbFailedAssignments=66  nbBacktracks=218  nbVisitedNodes=454
0.89	     nbRestartNogoods=13  mapSize=99  nbInferences=0  nbTooLargeKeys=0
0.89	       =>  wckTime=0.126  cpuTime=0.08  mem=16M543
0.91	   
0.91	   search
0.91	     run=6  nbConstraintChecks=8131  nbValidityChecks=11508  nbPropagations=3623  nbRevisions=23303
0.91	     nbUselessRevisions=19579  nbAssignments=508  nbFailedAssignments=90  nbBacktracks=331  nbVisitedNodes=641
0.91	     nbRestartNogoods=17  mapSize=140  nbInferences=0  nbTooLargeKeys=0
0.91	       =>  wckTime=0.148  cpuTime=0.09  mem=16M543
0.94	   
0.94	   search
0.94	     run=7  nbConstraintChecks=12923  nbValidityChecks=19152  nbPropagations=5335  nbRevisions=36198
0.94	     nbUselessRevisions=30576  nbAssignments=730  nbFailedAssignments=134  nbBacktracks=502  nbVisitedNodes=944
0.94	     nbRestartNogoods=20  mapSize=217  nbInferences=0  nbTooLargeKeys=0
0.94	       =>  wckTime=0.176  cpuTime=0.12  mem=16M543
0.98	   
0.98	   search
0.98	     run=8  nbConstraintChecks=21175  nbValidityChecks=31824  nbPropagations=7931  nbRevisions=57234
0.98	     nbUselessRevisions=48669  nbAssignments=1049  nbFailedAssignments=192  nbBacktracks=758  nbVisitedNodes=1381
0.98	     nbRestartNogoods=24  mapSize=332  nbInferences=0  nbTooLargeKeys=0
0.98	       =>  wckTime=0.213  cpuTime=0.15  mem=16M543
1.04	   
1.04	   search
1.04	     run=9  nbConstraintChecks=32629  nbValidityChecks=49933  nbPropagations=11849  nbRevisions=90024
1.04	     nbUselessRevisions=76983  nbAssignments=1526  nbFailedAssignments=272  nbBacktracks=1146  nbVisitedNodes=2029
1.04	     nbRestartNogoods=27  mapSize=498  nbInferences=0  nbTooLargeKeys=0
1.04	       =>  wckTime=0.277  cpuTime=0.2  mem=16M543
1.11	   
1.11	   search
1.11	     run=10  nbConstraintChecks=46984  nbValidityChecks=71623  nbPropagations=17386  nbRevisions=136369
1.11	     nbUselessRevisions=116898  nbAssignments=2248  nbFailedAssignments=394  nbBacktracks=1724  nbVisitedNodes=2978
1.11	     nbRestartNogoods=32  mapSize=734  nbInferences=0  nbTooLargeKeys=0
1.11	       =>  wckTime=0.348  cpuTime=0.26  mem=16M543
1.17	   
1.17	   search
1.17	     run=11  nbConstraintChecks=61365  nbValidityChecks=94202  nbPropagations=24737  nbRevisions=197452
1.17	     nbUselessRevisions=169364  nbAssignments=3034  nbFailedAssignments=524  nbBacktracks=2381  nbVisitedNodes=4047
1.17	     nbRestartNogoods=36  mapSize=1016  nbInferences=0  nbTooLargeKeys=0
1.17	       =>  wckTime=0.402  cpuTime=0.31  mem=16M543
1.17	   
1.17	   global
1.17	     nbConstraintChecks=61490  nbValidityChecks=94279  nbPropagations=24831  nbRevisions=197624
1.17	     nbUselessRevisions=169503  nbRestartNogoods=36  solvingWckTime=0.404  solvingCpuTime=0.31  expiredTime=no
1.17	     totalExploration=yes  nbFoundSolutions=0  globalCpuTime=0.69
1.17	       =>  wckTime=0.876  cpuTime=0.65  mem=16M543
1.17	   
1.17	s UNSATISFIABLE
1.17	d NODES 3034
1.17	d CHECKS 61490
1.17	   
1.17	   totalWckTime=0.952  totalCpuTime=0.69

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/node11/watcher-218943-1168253738 -o ROOT/results/node11/solver-218943-1168253738 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/218943-1168253738/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: 1.83 1.87 1.90 4/87 28966
/proc/meminfo: memFree=1669904/2055920 swapFree=4192812/4192956
[pid=28965] ppid=28963 vsize=905804 CPUtime=0
/proc/28965/stat : 28965 (java) R 28963 28965 28671 0 -1 0 1635 0 1 0 0 0 0 0 17 0 1 0 173768888 927543296 1384 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4153443603 0 4 0 7368 0 0 0 17 0 0 0
/proc/28965/statm: 226451 1390 831 14 0 214034 0

[startup+0.102651 s]
/proc/loadavg: 1.83 1.87 1.90 4/87 28966
/proc/meminfo: memFree=1669904/2055920 swapFree=4192812/4192956
[pid=28965] ppid=28963 vsize=914988 CPUtime=0.09
/proc/28965/stat : 28965 (java) R 28963 28965 28671 0 -1 0 3064 0 1 0 7 2 0 0 23 0 8 0 173768888 936947712 2810 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/28965/statm: 228747 2811 1451 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.510731 s]
/proc/loadavg: 1.83 1.87 1.90 4/87 28966
/proc/meminfo: memFree=1669904/2055920 swapFree=4192812/4192956
[pid=28965] ppid=28963 vsize=915456 CPUtime=0.49
/proc/28965/stat : 28965 (java) R 28963 28965 28671 0 -1 0 7120 0 1 0 43 6 0 0 25 0 8 0 173768888 937426944 6859 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4072942099 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/28965/statm: 228864 6859 2164 14 0 215334 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915456

Child status: 0
Real time (s): 1.22535
CPU time (s): 1.16182
CPU user time (s): 1.07084
CPU system time (s): 0.090986
CPU usage (%): 94.8157
Max. virtual memory (cumulated for all children) (KiB): 915456

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.07084
system time used= 0.090986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9201
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= 1165
involuntary context switches= 1378

runsolver used 0.008998 s user time and 0.015997 s system time

The end

Launcher Data (download as text)

Begin job on node11 on Mon Jan  8 10:55:38 UTC 2007


IDJOB= 218943
IDBENCH= 5268
FILE ID= node11/218943-1168253738

PBS_JOBID= 3481716

Free space on /tmp= 66288 MiB

BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-6-6-2.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/218943-1168253738/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-218943-1168253738 -o ROOT/results/node11/solver-218943-1168253738 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/218943-1168253738/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  a8c14c438e718ff6d9298db1d4701e5f

RANDOM SEED= 808425902

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		: 3000.261
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	: 5931.00
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		: 3000.261
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:       1679344 kB
Buffers:         40680 kB
Cached:         189364 kB
SwapCached:          0 kB
Active:         212344 kB
Inactive:       108332 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1679344 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2592 kB
Writeback:           0 kB
Mapped:         110628 kB
Slab:            40584 kB
Committed_AS:  5371004 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= 66288 MiB



End job on node11 on Mon Jan  8 10:55:40 UTC 2007