Trace number 2097601

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 ACSAT 1.3148 1.36797

DiagnosticValue
CHECKS92424
NODES252

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-20.xml
MD5SUMac93d30a66ab288a3e01eb7f585af8dc
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.034994
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints800
Maximum constraint arity2
Maximum domain size40
Number of constraints which are defined in extension0
Number of constraints which are defined in intension800
Global constraints used (with number of constraints)

Solver Data 

0.05/0.09	
0.05/0.09	Abscon 112 (May, 2008)
0.18/0.26	
0.18/0.26	   configuration
0.18/0.26	     name=mac.xml
0.29/0.30	   
0.29/0.30	   instance
0.29/0.30	     name=HOME/instance-2097601-1247413585.xml
0.29/0.34	   
0.29/0.34	   domains being loaded...
0.29/0.35	   
0.29/0.35	   variables being loaded...
0.29/0.38	     nbVariables=40  nbDomainTypes=1  minDomainSize=40  maxDomainSize=40  nbTotalValues=1600
0.29/0.38	       =>  wckTime=0.115  cpuTime=0.1  mem=7M892
0.29/0.38	   
0.29/0.38	   predicates being loaded...
0.38/0.44	   
0.38/0.44	   constraints being loaded...
0.87/0.96	     nbConstraints=781  nbGlobalConstraints=1  nbMergedConstraints=20  nbConvertedConstraints=780
0.87/0.96	     nbConvertConstraintsChecks=33600  nbExtensionStructures=21  nbSharedExtensionStructures=759
0.87/0.96	     nbConflictsStructures=21  nbSharedConflictsStructures=759  nbSharedBinaryRepresentations=1599  minDegree=40
0.87/0.96	     maxDegree=40  minArity=2  avgArity=2.05  maxArity=40  nbGenerators=0  nbFusions=0  symmetryWckTime=0.097
0.87/0.96	     symmetryCpuTime=0.05  nbCliques=1
0.87/0.96	       =>  wckTime=0.694  cpuTime=0.47  mem=18M663
0.96/1.03	   
0.96/1.03	   solver IterativeSystematicSolver being built... 
0.96/1.10	   
0.96/1.10	   INFO : Forward propagation technique limited 
1.06/1.16	       =>  wckTime=0.89  cpuTime=0.58  mem=20M266
1.06/1.18	   
1.06/1.18	   preprocessing
1.06/1.18	     nbConstraintChecks=1600  nbPropagations=60  nbRevisions=40  nbUselessRevisions=0  nbRemovedValues=460
1.06/1.18	     detectedInconsistency=no
1.06/1.18	       =>  wckTime=0.019  cpuTime=0.01  mem=21M241
1.25/1.32	   
1.25/1.32	   search
1.25/1.32	     run=2  nbConstraintChecks=90824  minDepth=20  maxDepth=40  nbPropagations=6090  nbRevisions=20557
1.25/1.32	     nbUselessRevisions=14842  nbAssignments=252  nbFailedAssignments=30  nbBacktracks=122  nbVisitedNodes=317
1.25/1.32	     nbRestartNogoods=7  nbFoundSolutions=1  mapSize=50  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
1.25/1.32	     nbREliminables=0  nbIEliminables=28.03  nbDEliminables=0  nbPEliminables=0
1.25/1.32	       =>  wckTime=0.166  cpuTime=0.11  mem=22M249
1.25/1.33	   
1.25/1.33	   global
1.25/1.33	     nbConstraintChecks=92424  nbPropagations=6150  nbRevisions=20597  nbUselessRevisions=14842  nbRestartNogoods=7
1.25/1.33	     solvingWckTime=0.168  solvingCpuTime=0.11  expiredTime=no  totalExploration=no  nbFoundSolutions=1
1.25/1.33	     firstSolutionCpuTime=0.69  globalCpuTime=0.74
1.25/1.33	       =>  wckTime=1.06  cpuTime=0.69  mem=22M249
1.25/1.33	   
1.25/1.33	s SATISFIABLE
1.25/1.33	v 31 9 10 34 29 30 28 17 6 27 3 7 11 4 8 1 5 13 2 0 33 12 14 39 35 37 36 26 16 38 15 20 25 19 24 18 23 32 22 21 
1.25/1.33	d NODES 252
1.25/1.33	d CHECKS 92424
1.25/1.33	   
1.25/1.33	   totalWckTime=1.131  totalCpuTime=0.74

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2097601-1247413585/watcher-2097601-1247413585 -o /tmp/evaluation-result-2097601-1247413585/solver-2097601-1247413585 -C 1800 -W 2000 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2097601-1247413585.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: 2.03 2.00 2.00 4/80 626
/proc/meminfo: memFree=1675040/2055920 swapFree=4192812/4192956
[pid=626] ppid=624 vsize=18576 CPUtime=0
/proc/626/stat : 626 (runsolver) R 624 626 31096 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 28424869 19021824 284 996147200 4194304 4302564 548682068384 18446744073709551615 266134416679 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/626/statm: 4644 284 249 26 0 2626 0

[startup+0.0676731 s]
/proc/loadavg: 2.03 2.00 2.00 4/80 626
/proc/meminfo: memFree=1675040/2055920 swapFree=4192812/4192956
[pid=626] ppid=624 vsize=864024 CPUtime=0.05
/proc/626/stat : 626 (java) S 624 626 31096 0 -1 0 2831 0 1 0 4 1 0 0 18 0 9 0 28424869 884760576 2365 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/626/statm: 216006 2365 1121 9 0 210899 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 864024

[startup+0.101675 s]
/proc/loadavg: 2.03 2.00 2.00 4/80 626
/proc/meminfo: memFree=1675040/2055920 swapFree=4192812/4192956
[pid=626] ppid=624 vsize=865984 CPUtime=0.08
/proc/626/stat : 626 (java) S 624 626 31096 0 -1 0 3726 0 1 0 7 1 0 0 18 0 9 0 28424869 886767616 3194 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/626/statm: 216496 3194 1695 9 0 210981 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865984

[startup+0.301701 s]
/proc/loadavg: 2.03 2.00 2.00 4/80 626
/proc/meminfo: memFree=1675040/2055920 swapFree=4192812/4192956
[pid=626] ppid=624 vsize=866380 CPUtime=0.29
/proc/626/stat : 626 (java) S 624 626 31096 0 -1 0 5789 0 1 0 26 3 0 0 18 0 9 0 28424869 887173120 5171 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/626/statm: 216595 5171 1965 9 0 211053 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866380

[startup+0.701742 s]
/proc/loadavg: 2.03 2.00 2.00 4/80 626
/proc/meminfo: memFree=1675040/2055920 swapFree=4192812/4192956
[pid=626] ppid=624 vsize=867772 CPUtime=0.68
/proc/626/stat : 626 (java) S 624 626 31096 0 -1 0 8369 0 1 0 63 5 0 0 18 0 9 0 28424869 888598528 7721 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/626/statm: 216943 7721 2039 9 0 211379 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867772

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

[startup+1.10679 s]
/proc/loadavg: 2.03 2.00 2.00 4/89 639
/proc/meminfo: memFree=1647960/2055920 swapFree=4192812/4192956
[pid=626] ppid=624 vsize=868420 CPUtime=1.06
/proc/626/stat : 626 (java) S 624 626 31096 0 -1 0 14992 316 1 0 95 11 0 0 18 0 9 0 28424869 889262080 9856 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/626/statm: 217105 9856 2655 9 0 211541 0
[pid=626/tid=628] ppid=624 vsize=868420 CPUtime=0.73
/proc/626/task/628/stat : 628 (java) R 624 626 31096 0 -1 64 10422 316 1 0 65 8 0 0 21 0 9 0 28424871 889262080 9856 996147200 134512640 134550932 4294955968 18446744073709551615 4125978494 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=629] ppid=624 vsize=868420 CPUtime=0.04
/proc/626/task/629/stat : 629 (java) S 624 626 31096 0 -1 64 2830 316 0 0 4 0 0 0 17 0 9 0 28424872 889262080 9856 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=630] ppid=624 vsize=868420 CPUtime=0
/proc/626/task/630/stat : 630 (java) S 624 626 31096 0 -1 64 19 316 0 0 0 0 0 0 16 0 9 0 28424872 889262080 9856 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=631] ppid=624 vsize=868420 CPUtime=0
/proc/626/task/631/stat : 631 (java) S 624 626 31096 0 -1 64 9 316 0 0 0 0 0 0 16 0 9 0 28424872 889262080 9856 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=632] ppid=624 vsize=868420 CPUtime=0
/proc/626/task/632/stat : 632 (java) S 624 626 31096 0 -1 64 1 316 0 0 0 0 0 0 18 0 9 0 28424874 889262080 9856 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=633] ppid=624 vsize=868420 CPUtime=0.24
/proc/626/task/633/stat : 633 (java) S 624 626 31096 0 -1 64 894 316 0 0 24 0 0 0 15 0 9 0 28424874 889262080 9856 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=634] ppid=624 vsize=868420 CPUtime=0
/proc/626/task/634/stat : 634 (java) S 624 626 31096 0 -1 64 1 316 0 0 0 0 0 0 19 0 9 0 28424875 889262080 9856 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=635] ppid=624 vsize=868420 CPUtime=0
/proc/626/task/635/stat : 635 (java) S 624 626 31096 0 -1 64 6 316 0 0 0 0 0 0 15 0 9 0 28424875 889262080 9856 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.06
Current children cumulated vsize (KiB) 868420

[startup+1.30276 s]
/proc/loadavg: 2.03 2.00 2.00 4/89 639
/proc/meminfo: memFree=1647960/2055920 swapFree=4192812/4192956
[pid=626] ppid=624 vsize=868420 CPUtime=1.25
/proc/626/stat : 626 (java) S 624 626 31096 0 -1 0 17017 316 1 0 113 12 0 0 18 0 9 0 28424869 889262080 10873 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/626/statm: 217105 10873 2657 9 0 211541 0
[pid=626/tid=628] ppid=624 vsize=868420 CPUtime=0.87
/proc/626/task/628/stat : 628 (java) R 624 626 31096 0 -1 64 12416 316 1 0 79 8 0 0 23 0 9 0 28424871 889262080 10873 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=629] ppid=624 vsize=868420 CPUtime=0.04
/proc/626/task/629/stat : 629 (java) S 624 626 31096 0 -1 64 2830 316 0 0 4 0 0 0 17 0 9 0 28424872 889262080 10873 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=630] ppid=624 vsize=868420 CPUtime=0
/proc/626/task/630/stat : 630 (java) S 624 626 31096 0 -1 64 19 316 0 0 0 0 0 0 16 0 9 0 28424872 889262080 10873 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=631] ppid=624 vsize=868420 CPUtime=0
/proc/626/task/631/stat : 631 (java) S 624 626 31096 0 -1 64 9 316 0 0 0 0 0 0 16 0 9 0 28424872 889262080 10873 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=632] ppid=624 vsize=868420 CPUtime=0
/proc/626/task/632/stat : 632 (java) S 624 626 31096 0 -1 64 1 316 0 0 0 0 0 0 18 0 9 0 28424874 889262080 10873 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=633] ppid=624 vsize=868420 CPUtime=0.3
/proc/626/task/633/stat : 633 (java) S 624 626 31096 0 -1 64 925 316 0 0 29 1 0 0 15 0 9 0 28424874 889262080 10873 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=634] ppid=624 vsize=868420 CPUtime=0
/proc/626/task/634/stat : 634 (java) S 624 626 31096 0 -1 64 1 316 0 0 0 0 0 0 19 0 9 0 28424875 889262080 10873 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=626/tid=635] ppid=624 vsize=868420 CPUtime=0
/proc/626/task/635/stat : 635 (java) S 624 626 31096 0 -1 64 6 316 0 0 0 0 0 0 15 0 9 0 28424875 889262080 10873 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.25
Current children cumulated vsize (KiB) 868420

Child status: 0
Real time (s): 1.36797
CPU time (s): 1.3148
CPU user time (s): 1.17682
CPU system time (s): 0.137979
CPU usage (%): 96.1136
Max. virtual memory (cumulated for all children) (KiB): 868420

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.17682
system time used= 0.137979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17466
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= 1401
involuntary context switches= 1481

runsolver used 0.005999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node35 at 2009-07-12 17:46:25
IDJOB=2097601
IDBENCH=57557
IDSOLVER=773
FILE ID=node35/2097601-1247413585
PBS_JOBID= 9510573
Free space on /tmp= 66300 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-20.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2097601-1247413585/watcher-2097601-1247413585 -o /tmp/evaluation-result-2097601-1247413585/solver-2097601-1247413585 -C 1800 -W 2000 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2097601-1247413585.xml

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

MD5SUM BENCH= ac93d30a66ab288a3e01eb7f585af8dc
RANDOM SEED=1602547196

node35.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		: 3000.213
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		: 3000.213
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:       1675520 kB
Buffers:         39916 kB
Cached:         131988 kB
SwapCached:          0 kB
Active:         248496 kB
Inactive:        77660 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1675520 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2232 kB
Writeback:           0 kB
Mapped:         174676 kB
Slab:            39276 kB
Committed_AS:  1035252 kB
PageTables:       2080 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= 66296 MiB
End job on node35 at 2009-07-12 17:46:26