Trace number 1091348

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 0.946855 0.989965

DiagnosticValue
CHECKS58
NODES0

General information on the benchmark

Namecsp/pigeons/
normalized-pigeons-30.xml
MD5SUM92e81eac5813ec2c00a347b28940089e
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.017996
Satisfiable
(Un)Satisfiability was proved
Number of variables30
Number of constraints435
Maximum constraint arity2
Maximum domain size29
Number of constraints which are defined in extension0
Number of constraints which are defined in intension435
Global constraints used (with number of constraints)

Solver Data (download as text)

0.03/0.08	
0.03/0.08	Abscon 112 (May, 2008)
0.19/0.24	
0.19/0.24	   configuration
0.19/0.24	     name=esac.xml
0.19/0.27	   
0.19/0.27	   instance
0.19/0.27	     name=HOME/instance-1091348-1215274640.xml
0.29/0.30	   
0.29/0.30	   domains being loaded...
0.29/0.31	   
0.29/0.31	   variables being loaded...
0.29/0.34	     nbVariables=30  nbDomainTypes=1  minDomainSize=29  maxDomainSize=29  nbTotalValues=870
0.29/0.34	       =>  wckTime=0.101  cpuTime=0.08  mem=7M919
0.29/0.34	   
0.29/0.34	   predicates being loaded...
0.39/0.40	   
0.39/0.40	   constraints being loaded...
0.68/0.74	     nbConstraints=465  nbGlobalConstraints=30  nbConvertedConstraints=435  nbConvertConstraintsChecks=1682
0.68/0.74	     nbExtensionStructures=2  nbSharedExtensionStructures=433  nbConflictsStructures=30  nbSharedConflictsStructures=433
0.68/0.74	     nbSharedBinaryRepresentations=29  minDegree=31  maxDegree=32  minArity=2  avgArity=2.06  maxArity=30
0.68/0.74	     nbGenerators=29  nbFusions=29  symmetryWckTime=0.107  symmetryCpuTime=0.05  nbCliques=1
0.68/0.74	       =>  wckTime=0.503  cpuTime=0.35  mem=15M811
0.77/0.80	   
0.77/0.80	   solver IterativeSystematicSolver being built... 
0.77/0.86	   
0.77/0.86	   INFO : Forward propagation technique limited 
0.87/0.93	       =>  wckTime=0.691  cpuTime=0.47  mem=20M11
0.87/0.93	   
0.87/0.93	   preprocessing
0.87/0.93	     nbConstraintChecks=58  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRemovedValues=2
0.87/0.93	     nbRemovedTuples=406  detectedInconsistency=yes
0.87/0.93	       =>  wckTime=0.0020  cpuTime=0.0  mem=20M11
0.87/0.94	   
0.87/0.94	   global
0.87/0.94	     nbConstraintChecks=58  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRestartNogoods=0
0.87/0.94	     solvingWckTime=0.0050  solvingCpuTime=0.0  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.87/0.94	     globalCpuTime=0.52
0.87/0.94	       =>  wckTime=0.699  cpuTime=0.47  mem=21M3
0.87/0.94	   
0.87/0.94	s UNSATISFIABLE
0.87/0.94	d NODES 0
0.87/0.94	d CHECKS 58
0.87/0.94	   
0.87/0.94	   totalWckTime=0.764  totalCpuTime=0.52

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1091348-1215274640/watcher-1091348-1215274640 -o /tmp/evaluation-result-1091348-1215274640/solver-1091348-1215274640 -C 1800 -W 2200 -M 900 --output-limit 1,15 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-1091348-1215274640.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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.92 1.98 1.99 4/74 687
/proc/meminfo: memFree=1612032/2055920 swapFree=4180240/4192956
[pid=687] ppid=685 vsize=152 CPUtime=0
/proc/687/stat : 687 (java) R 685 687 30593 0 -1 0 205 0 0 0 0 0 0 0 18 0 1 0 2006435954 155648 26 996147200 134512640 134550740 4294955968 18446744073709551615 7918372 0 0 4096 0 0 0 0 17 0 0 0
/proc/687/statm: 38 26 19 9 0 4 0

[startup+0.0390529 s]
/proc/loadavg: 1.92 1.98 1.99 4/74 687
/proc/meminfo: memFree=1612032/2055920 swapFree=4180240/4192956
[pid=687] ppid=685 vsize=861876 CPUtime=0.03
/proc/687/stat : 687 (java) S 685 687 30593 0 -1 0 2324 0 1 0 2 1 0 0 18 0 5 0 2006435954 882561024 1917 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800971 18446744073709551615 0 0 17 0 0 0
/proc/687/statm: 215469 1921 878 9 0 210448 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 861876

[startup+0.101059 s]
/proc/loadavg: 1.92 1.98 1.99 4/74 687
/proc/meminfo: memFree=1612032/2055920 swapFree=4180240/4192956
[pid=687] ppid=685 vsize=865884 CPUtime=0.09
/proc/687/stat : 687 (java) S 685 687 30593 0 -1 0 3795 0 1 0 7 2 0 0 18 0 9 0 2006435954 886665216 3246 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/687/statm: 216471 3246 1720 9 0 211026 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865884

[startup+0.301094 s]
/proc/loadavg: 1.92 1.98 1.99 4/74 687
/proc/meminfo: memFree=1612032/2055920 swapFree=4180240/4192956
[pid=687] ppid=685 vsize=866400 CPUtime=0.29
/proc/687/stat : 687 (java) S 685 687 30593 0 -1 0 6031 0 1 0 25 4 0 0 18 0 9 0 2006435954 887193600 5405 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/687/statm: 216600 5405 1956 9 0 211128 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866400

[startup+0.701157 s]
/proc/loadavg: 1.92 1.98 1.99 4/74 687
/proc/meminfo: memFree=1612032/2055920 swapFree=4180240/4192956
[pid=687] ppid=685 vsize=867400 CPUtime=0.68
/proc/687/stat : 687 (java) S 685 687 30593 0 -1 0 8786 193 1 0 59 8 1 0 18 0 10 0 2006435954 888217600 7694 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/687/statm: 216850 7694 2014 9 0 211356 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867400

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

[startup+0.901191 s]
/proc/loadavg: 1.92 1.98 1.99 4/74 687
/proc/meminfo: memFree=1612032/2055920 swapFree=4180240/4192956
[pid=687] ppid=685 vsize=867532 CPUtime=0.87
/proc/687/stat : 687 (java) S 685 687 30593 0 -1 0 14196 193 1 0 76 10 1 0 18 0 10 0 2006435954 888352768 8964 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/687/statm: 216883 8964 2627 9 0 211389 0
Current children cumulated CPU time (s) 0.87
Current children cumulated vsize (KiB) 867532

Child status: 0
Real time (s): 0.989965
CPU time (s): 0.946855
CPU user time (s): 0.816875
CPU system time (s): 0.12998
CPU usage (%): 95.6453
Max. virtual memory (cumulated for all children) (KiB): 867532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.816875
system time used= 0.12998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16163
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= 817
involuntary context switches= 837

runsolver used 0.008998 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node50 at 2008-07-05 18:17:20
IDJOB=1091348
IDBENCH=58545
IDSOLVER=364
FILE ID=node50/1091348-1215274640
PBS_JOBID= 7882101
Free space on /tmp= 66436 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/pigeons/normalized-pigeons-30.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= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1091348-1215274640/watcher-1091348-1215274640 -o /tmp/evaluation-result-1091348-1215274640/solver-1091348-1215274640 -C 1800 -W 2200 -M 900 --output-limit 1,15  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-1091348-1215274640.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 92e81eac5813ec2c00a347b28940089e
RANDOM SEED=909451737

node50.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		: 3000.261
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	: 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		: 3000.261
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:       1612512 kB
Buffers:         74416 kB
Cached:         265720 kB
SwapCached:       7072 kB
Active:         204688 kB
Inactive:       177660 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1612512 kB
SwapTotal:     4192956 kB
SwapFree:      4180240 kB
Dirty:            2312 kB
Writeback:           0 kB
Mapped:          48820 kB
Slab:            46164 kB
Committed_AS:  4037140 kB
PageTables:       1956 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= 66436 MiB
End job on node50 at 2008-07-05 18:17:21