Trace number 1043045

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
casper zaoUNSAT 0.011997 0.017439

DiagnosticValue
CHECKS256

General information on the benchmark

Namecsp/coloring/
normalized-geom-40-3-ext.xml
MD5SUM38c956e2ef1782d743e333f7c4cac2d4
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.005998
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints78
Maximum constraint arity2
Maximum domain size3
Number of constraints which are defined in extension78
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.01	c [ This is CaSPERzao (C) mvc@di.fct.unl.pt ]
0.00/0.01	c Parsing = 1
0.00/0.01	c Building = 1
0.00/0.01	c [ NumberOfVariables = 40 ]
0.00/0.01	c [ NumberOfConstraints = 78 ]
0.00/0.01	c [ SizeOfSearchSpace(log2) = 63.3985 ]
0.00/0.01	c SymmetrySearch = 1
0.00/0.01	c [ Found 720 symmetries ]
0.00/0.01	c InitialPropagation = 1
0.00/0.01	c [ SizeOfSearchSpace(log2) = 63.3985 ]
0.00/0.01	c InitialSAC = 0
0.00/0.01	s UNSATISFIABLE
0.00/0.01	d CHECKS 256
0.00/0.01	c [ TotalFails = 0 ]
0.00/0.01	c [ NumberOfRestarts = 0 ]
0.00/0.01	c [ TotalTime = 0.00237309 secs ]

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-1043045-1215023596/watcher-1043045-1215023596 -o /tmp/evaluation-result-1043045-1215023596/solver-1043045-1215023596 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzao HOME/instance-1043045-1215023596.xml 1559932918 

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: 1.99 1.98 1.91 4/72 22736
/proc/meminfo: memFree=1473808/2055920 swapFree=4116956/4192956
[pid=22736] ppid=22734 vsize=18572 CPUtime=0
/proc/22736/stat : 22736 (runsolver) R 22734 22736 21724 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 1981333273 19017728 292 996147200 4194304 4296836 548682068480 18446744073709551615 264907582759 0 0 4096 24578 0 0 0 17 1 0 0
/proc/22736/statm: 4643 292 257 25 0 2626 0

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

Child status: 0
Real time (s): 0.017439
CPU time (s): 0.011997
CPU user time (s): 0.006998
CPU system time (s): 0.004999
CPU usage (%): 68.7939
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.006998
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 623
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 13
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node30 at 2008-07-02 20:33:16
IDJOB=1043045
IDBENCH=53571
IDSOLVER=361
FILE ID=node30/1043045-1215023596
PBS_JOBID= 7874410
Free space on /tmp= 66552 MiB

SOLVER NAME= casper zao
BENCH NAME= CPAI08/csp/coloring/normalized-geom-40-3-ext.xml
COMMAND LINE= HOME/casperzao BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1043045-1215023596/watcher-1043045-1215023596 -o /tmp/evaluation-result-1043045-1215023596/solver-1043045-1215023596 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzao HOME/instance-1043045-1215023596.xml 1559932918 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 38c956e2ef1782d743e333f7c4cac2d4
RANDOM SEED=1559932918

node30.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		: 3000.218
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		: 3000.218
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:       1474288 kB
Buffers:         65752 kB
Cached:         330008 kB
SwapCached:      70040 kB
Active:         371288 kB
Inactive:       129396 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1474288 kB
SwapTotal:     4192956 kB
SwapFree:      4116956 kB
Dirty:            3072 kB
Writeback:           0 kB
Mapped:         112640 kB
Slab:            66380 kB
Committed_AS:  3565196 kB
PageTables:       1872 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= 66548 MiB
End job on node30 at 2008-07-02 20:33:16