Trace number 2096174

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 1.62175 1.67081

DiagnosticValue
CHECKS2511
NODES35

General information on the benchmark

Namecsp/
chessboardColoration/normalized-cc-8-8-2.xml
MD5SUMc749bc7e0566d10272437da124749429
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 benchmark0.924859
Satisfiable
(Un)Satisfiability was proved
Number of variables64
Number of constraints784
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension784
Global constraints used (with number of constraints)

Solver Data 

0.03/0.08	
0.03/0.08	Abscon 112 (May, 2008)
0.18/0.24	
0.18/0.24	   configuration
0.18/0.24	     name=esac.xml
0.18/0.27	   
0.18/0.27	   instance
0.18/0.27	     name=HOME/instance-2096174-1247409969.xml
0.29/0.31	   
0.29/0.31	   domains being loaded...
0.29/0.32	   
0.29/0.32	   variables being loaded...
0.29/0.34	     nbVariables=64  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2  nbTotalValues=128
0.29/0.34	       =>  wckTime=0.099  cpuTime=0.09  mem=7M892
0.29/0.34	   
0.29/0.34	   predicates being loaded...
0.39/0.40	   
0.39/0.40	   constraints being loaded...
1.17/1.22	     nbConstraints=798  nbGlobalConstraints=14  nbConflictsStructures=1  nbSharedConflictsStructures=783
1.17/1.22	     nbSharedBinaryRepresentations=0  nbEvaluationManagers=1  nbSharedEvaluationManagers=783  minDegree=51  maxDegree=54
1.17/1.22	     minArity=4  avgArity=4.26  maxArity=56  nbGenerators=14  nbFusions=0  symmetryWckTime=0.158  symmetryCpuTime=0.07
1.17/1.22	       =>  wckTime=0.98  cpuTime=0.74  mem=43M58
1.28/1.31	   
1.28/1.31	   solver IterativeSystematicSolver being built... 
1.37/1.42	   
1.37/1.42	   INFO : Forward propagation technique limited 
1.37/1.49	       =>  wckTime=1.252  cpuTime=0.89  mem=29M722
1.47/1.58	   
1.47/1.58	   preprocessing
1.47/1.58	     nbConstraintChecks=1888  nbValidityChecks=2297  nbPropagations=293  nbRevisions=2408  nbUselessRevisions=2177
1.47/1.58	     nbSingletonTests=117  nbEffectiveSingletonTests=1  nbACRemovals=0  nbFoundSingletons=0  nbRemovedValues=6
1.47/1.58	     detectedInconsistency=no
1.47/1.58	       =>  wckTime=0.082  cpuTime=0.06  mem=29M722
1.57/1.61	   
1.57/1.61	   search
1.57/1.61	     run=0  nbConstraintChecks=623  nbValidityChecks=1476  minDepth=0  maxDepth=21  nbPropagations=376  nbRevisions=3575
1.57/1.61	     nbUselessRevisions=3261  nbAssignments=35  nbFailedAssignments=2  nbBacktracks=22  nbVisitedNodes=43
1.57/1.61	     nbRestartNogoods=0  mapSize=6  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0  nbREliminables=50.33
1.57/1.61	     nbIEliminables=8.55  nbDEliminables=0  nbPEliminables=0
1.57/1.61	       =>  wckTime=0.115  cpuTime=0.07  mem=30M689
1.57/1.61	   
1.57/1.61	   global
1.57/1.61	     nbConstraintChecks=2511  nbValidityChecks=3773  nbPropagations=669  nbRevisions=5983  nbUselessRevisions=5438
1.57/1.61	     nbRestartNogoods=0  solvingWckTime=0.119  solvingCpuTime=0.08  expiredTime=no  totalExploration=yes
1.57/1.61	     nbFoundSolutions=0  globalCpuTime=1.02
1.57/1.61	       =>  wckTime=1.371  cpuTime=0.97  mem=30M689
1.57/1.61	   
1.57/1.61	s UNSATISFIABLE
1.57/1.61	d NODES 35
1.57/1.61	d CHECKS 2511
1.57/1.61	   
1.57/1.61	   totalWckTime=1.436  totalCpuTime=1.02

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-2096174-1247409969/watcher-2096174-1247409969 -o /tmp/evaluation-result-2096174-1247409969/solver-2096174-1247409969 -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-2096174-1247409969.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: 2.00 2.00 2.00 4/80 1878
/proc/meminfo: memFree=1637296/2055920 swapFree=4192812/4192956
[pid=1878] ppid=1875 vsize=152 CPUtime=0
/proc/1878/stat : 1878 (java) R 1875 1878 746 0 -1 0 205 0 0 0 0 0 0 0 18 0 1 0 28060324 155648 26 996147200 134512640 134550932 4294955968 18446744073709551615 10383659 0 0 4096 0 0 0 0 17 0 0 0
/proc/1878/statm: 38 26 19 9 0 4 0

[startup+0.0460571 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 1878
/proc/meminfo: memFree=1637296/2055920 swapFree=4192812/4192956
[pid=1878] ppid=1875 vsize=863616 CPUtime=0.03
/proc/1878/stat : 1878 (java) S 1875 1878 746 0 -1 0 2438 0 1 0 2 1 0 0 18 0 9 0 28060324 884342784 2007 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/1878/statm: 215904 2007 911 9 0 210819 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 863616

[startup+0.102061 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 1878
/proc/meminfo: memFree=1637296/2055920 swapFree=4192812/4192956
[pid=1878] ppid=1875 vsize=865980 CPUtime=0.09
/proc/1878/stat : 1878 (java) S 1875 1878 746 0 -1 0 3821 0 1 0 7 2 0 0 18 0 9 0 28060324 886763520 3268 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/1878/statm: 216495 3269 1725 9 0 210980 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865980

[startup+0.302091 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 1878
/proc/meminfo: memFree=1637296/2055920 swapFree=4192812/4192956
[pid=1878] ppid=1875 vsize=866500 CPUtime=0.29
/proc/1878/stat : 1878 (java) S 1875 1878 746 0 -1 0 6103 0 1 0 25 4 0 0 18 0 9 0 28060324 887296000 5469 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/1878/statm: 216625 5476 1987 9 0 211083 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866500

[startup+0.701118 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 1878
/proc/meminfo: memFree=1637296/2055920 swapFree=4192812/4192956
[pid=1878] ppid=1875 vsize=867732 CPUtime=0.68
/proc/1878/stat : 1878 (java) S 1875 1878 746 0 -1 0 9871 0 1 0 62 6 0 0 18 0 9 0 28060324 888557568 9225 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/1878/statm: 216933 9225 2035 9 0 211369 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867732

[startup+1.5012 s]
/proc/loadavg: 2.00 2.00 2.00 3/89 1887
/proc/meminfo: memFree=1593192/2055920 swapFree=4192812/4192956
[pid=1878] ppid=1875 vsize=868188 CPUtime=1.47
/proc/1878/stat : 1878 (java) S 1875 1878 746 0 -1 0 25898 313 1 0 126 16 5 0 18 0 10 0 28060324 889024512 16178 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/1878/statm: 217047 16178 2658 9 0 211483 0
[pid=1878/tid=1880] ppid=1875 vsize=868188 CPUtime=1.14
/proc/1878/task/1880/stat : 1880 (java) R 1875 1878 746 0 -1 64 18769 313 1 0 96 13 5 0 17 0 10 0 28060325 889024512 16178 996147200 134512640 134550932 4294955968 18446744073709551615 4125950752 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=1878/tid=1881] ppid=1875 vsize=868188 CPUtime=0.11
/proc/1878/task/1881/stat : 1881 (java) S 1875 1878 746 0 -1 64 5389 313 0 0 6 0 5 0 16 0 10 0 28060326 889024512 16178 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 0 0 0
[pid=1878/tid=1882] ppid=1875 vsize=868188 CPUtime=0.05
/proc/1878/task/1882/stat : 1882 (java) S 1875 1878 746 0 -1 64 19 313 0 0 0 0 5 0 16 0 10 0 28060327 889024512 16178 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=1878/tid=1883] ppid=1875 vsize=868188 CPUtime=0.05
/proc/1878/task/1883/stat : 1883 (java) S 1875 1878 746 0 -1 64 10 313 0 0 0 0 5 0 16 0 10 0 28060327 889024512 16178 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=1878/tid=1884] ppid=1875 vsize=868188 CPUtime=0.05
/proc/1878/task/1884/stat : 1884 (java) S 1875 1878 746 0 -1 64 2 313 0 0 0 0 5 0 24 0 10 0 28060329 889024512 16178 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=1878/tid=1885] ppid=1875 vsize=868188 CPUtime=0.28
/proc/1878/task/1885/stat : 1885 (java) S 1875 1878 746 0 -1 64 904 313 0 0 22 1 5 0 15 0 10 0 28060329 889024512 16178 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=1878/tid=1886] ppid=1875 vsize=868188 CPUtime=0.05
/proc/1878/task/1886/stat : 1886 (java) S 1875 1878 746 0 -1 64 0 313 0 0 0 0 5 0 25 0 10 0 28060329 889024512 16178 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=1878/tid=1887] ppid=1875 vsize=868188 CPUtime=0.05
/proc/1878/task/1887/stat : 1887 (java) S 1875 1878 746 0 -1 64 9 313 0 0 0 0 5 0 15 0 10 0 28060329 889024512 16178 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 868188

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

[startup+1.60221 s]
/proc/loadavg: 2.00 2.00 2.00 3/89 1887
/proc/meminfo: memFree=1593192/2055920 swapFree=4192812/4192956
[pid=1878] ppid=1875 vsize=868188 CPUtime=1.57
/proc/1878/stat : 1878 (java) S 1875 1878 746 0 -1 0 26112 313 1 0 135 17 5 0 18 0 10 0 28060324 889024512 16212 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/1878/statm: 217047 16212 2658 9 0 211483 0
[pid=1878/tid=1880] ppid=1875 vsize=868188 CPUtime=1.2
/proc/1878/task/1880/stat : 1880 (java) R 1875 1878 746 0 -1 64 18963 313 1 0 102 13 5 0 18 0 10 0 28060325 889024512 16212 996147200 134512640 134550932 4294955968 18446744073709551615 4127063591 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=1878/tid=1881] ppid=1875 vsize=868188 CPUtime=0.11
/proc/1878/task/1881/stat : 1881 (java) S 1875 1878 746 0 -1 64 5389 313 0 0 6 0 5 0 16 0 10 0 28060326 889024512 16212 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 0 0 0
[pid=1878/tid=1882] ppid=1875 vsize=868188 CPUtime=0.05
/proc/1878/task/1882/stat : 1882 (java) S 1875 1878 746 0 -1 64 19 313 0 0 0 0 5 0 16 0 10 0 28060327 889024512 16212 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=1878/tid=1883] ppid=1875 vsize=868188 CPUtime=0.05
/proc/1878/task/1883/stat : 1883 (java) S 1875 1878 746 0 -1 64 10 313 0 0 0 0 5 0 16 0 10 0 28060327 889024512 16212 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=1878/tid=1884] ppid=1875 vsize=868188 CPUtime=0.05
/proc/1878/task/1884/stat : 1884 (java) S 1875 1878 746 0 -1 64 2 313 0 0 0 0 5 0 24 0 10 0 28060329 889024512 16212 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=1878/tid=1885] ppid=1875 vsize=868188 CPUtime=0.31
/proc/1878/task/1885/stat : 1885 (java) S 1875 1878 746 0 -1 64 924 313 0 0 25 1 5 0 15 0 10 0 28060329 889024512 16212 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=1878/tid=1886] ppid=1875 vsize=868188 CPUtime=0.05
/proc/1878/task/1886/stat : 1886 (java) S 1875 1878 746 0 -1 64 0 313 0 0 0 0 5 0 25 0 10 0 28060329 889024512 16212 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=1878/tid=1887] ppid=1875 vsize=868188 CPUtime=0.05
/proc/1878/task/1887/stat : 1887 (java) S 1875 1878 746 0 -1 64 9 313 0 0 0 0 5 0 15 0 10 0 28060329 889024512 16212 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.57
Current children cumulated vsize (KiB) 868188

Child status: 0
Real time (s): 1.67081
CPU time (s): 1.62175
CPU user time (s): 1.42378
CPU system time (s): 0.197969
CPU usage (%): 97.064
Max. virtual memory (cumulated for all children) (KiB): 868188

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.42378
system time used= 0.197969
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 26645
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= 1303
involuntary context switches= 1339

runsolver used 0.003999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node61 at 2009-07-12 16:46:09
IDJOB=2096174
IDBENCH=56093
IDSOLVER=774
FILE ID=node61/2096174-1247409969
PBS_JOBID= 9510524
Free space on /tmp= 66408 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-8-8-2.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-2096174-1247409969/watcher-2096174-1247409969 -o /tmp/evaluation-result-2096174-1247409969/solver-2096174-1247409969 -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-2096174-1247409969.xml

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

MD5SUM BENCH= c749bc7e0566d10272437da124749429
RANDOM SEED=405009482

node61.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		: 3000.229
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		: 3000.229
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:       1637776 kB
Buffers:         89096 kB
Cached:         210648 kB
SwapCached:          0 kB
Active:         231696 kB
Inactive:       120200 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1637776 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2256 kB
Writeback:           0 kB
Mapped:          72608 kB
Slab:            51500 kB
Committed_AS:  1042200 kB
PageTables:       1844 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66408 MiB
End job on node61 at 2009-07-12 16:46:10