Trace number 1071409

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 0.739887 0.750509

DiagnosticValue
CHECKS18085

General information on the benchmark

Namecsp/
chessboardColoration/normalized-cc-9-9-2.xml
MD5SUMce08ce1390ffd10aa41a85c876acf89f
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 benchmark0.384941
Satisfiable
(Un)Satisfiability was proved
Number of variables81
Number of constraints1296
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1296
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.21	c [ This is CaSPERzao (C) mvc@di.fct.unl.pt ]
0.18/0.21	c Parsing = 1
0.18/0.21	c Building = 1
0.48/0.52	c [ NumberOfVariables = 81 ]
0.48/0.52	c [ NumberOfConstraints = 1296 ]
0.48/0.52	c [ SizeOfSearchSpace(log2) = 81 ]
0.48/0.52	c SymmetrySearch = 1
0.58/0.69	c [ Found 2.63364e+11 symmetries ]
0.58/0.70	c InitialPropagation = 1
0.68/0.71	c [ SizeOfSearchSpace(log2) = 81 ]
0.68/0.71	c InitialSAC = 0
0.68/0.74	s UNSATISFIABLE
0.68/0.74	d CHECKS 18085
0.68/0.74	c [ TotalFails = 0 ]
0.68/0.74	c [ NumberOfRestarts = 0 ]
0.68/0.74	c [ TotalTime = 0.627366 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-1071409-1215168956/watcher-1071409-1215168956 -o /tmp/evaluation-result-1071409-1215168956/solver-1071409-1215168956 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzao HOME/instance-1071409-1215168956.xml 651914074 

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: 2.02 1.99 1.99 4/72 20102
/proc/meminfo: memFree=1872040/2055920 swapFree=4181068/4192956
[pid=20102] ppid=20100 vsize=18572 CPUtime=0
/proc/20102/stat : 20102 (runsolver) R 20100 20102 18345 0 -1 4194368 15 0 0 0 0 0 0 0 22 0 1 0 154706941 19017728 292 996147200 4194304 4296836 548682068480 18446744073709551615 212218735911 0 0 4096 24578 0 0 0 17 1 0 0
/proc/20102/statm: 4643 292 257 25 0 2626 0

[startup+0.0798831 s]
/proc/loadavg: 2.02 1.99 1.99 4/72 20102
/proc/meminfo: memFree=1872040/2055920 swapFree=4181068/4192956
[pid=20102] ppid=20100 vsize=100260 CPUtime=0.06
/proc/20102/stat : 20102 (casperzao) R 20100 20102 18345 0 -1 4194304 946 0 0 0 6 0 0 0 18 0 1 0 154706941 102666240 808 996147200 134512640 135477443 4294956224 18446744073709551615 5430002 0 0 4096 0 0 0 0 17 1 0 0
/proc/20102/statm: 25065 808 459 235 0 23766 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 100260

[startup+0.10188 s]
/proc/loadavg: 2.02 1.99 1.99 4/72 20102
/proc/meminfo: memFree=1872040/2055920 swapFree=4181068/4192956
[pid=20102] ppid=20100 vsize=288032 CPUtime=0.08
/proc/20102/stat : 20102 (casperzao) R 20100 20102 18345 0 -1 4194304 1536 0 0 0 8 0 0 0 18 0 1 0 154706941 294944768 963 996147200 134512640 135477443 4294956224 18446744073709551615 135268638 0 0 4096 0 0 0 0 17 1 0 0
/proc/20102/statm: 72008 963 459 235 0 70709 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 288032

[startup+0.301903 s]
/proc/loadavg: 2.02 1.99 1.99 4/72 20102
/proc/meminfo: memFree=1872040/2055920 swapFree=4181068/4192956
[pid=20102] ppid=20100 vsize=291464 CPUtime=0.29
/proc/20102/stat : 20102 (casperzao) R 20100 20102 18345 0 -1 4194304 7048 0 0 0 23 6 0 0 19 0 1 0 154706941 298459136 2422 996147200 134512640 135477443 4294956224 18446744073709551615 135198081 0 0 4096 0 0 0 0 17 1 0 0
/proc/20102/statm: 72866 2422 459 235 0 71567 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 291464

[startup+0.701943 s]
/proc/loadavg: 2.02 1.99 1.99 4/72 20102
/proc/meminfo: memFree=1872040/2055920 swapFree=4181068/4192956
[pid=20102] ppid=20100 vsize=110304 CPUtime=0.68
/proc/20102/stat : 20102 (casperzao) R 20100 20102 18345 0 -1 4194304 14019 0 0 0 56 12 0 0 23 0 1 0 154706941 112951296 4675 996147200 134512640 135477443 4294956224 18446744073709551615 134911678 0 0 4096 0 0 0 0 17 1 0 0
/proc/20102/statm: 27576 4675 504 235 0 26277 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 110304

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

Child status: 0
Real time (s): 0.750509
CPU time (s): 0.739887
CPU user time (s): 0.610907
CPU system time (s): 0.12898
CPU usage (%): 98.5847
Max. virtual memory (cumulated for all children) (KiB): 294896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.610907
system time used= 0.12898
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 14239
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= 16
involuntary context switches= 34

runsolver used 0.005999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node46 at 2008-07-04 12:55:56
IDJOB=1071409
IDBENCH=56086
IDSOLVER=361
FILE ID=node46/1071409-1215168956
PBS_JOBID= 7881470
Free space on /tmp= 66208 MiB

SOLVER NAME= casper zao
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-9-9-2.xml
COMMAND LINE= HOME/casperzao BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1071409-1215168956/watcher-1071409-1215168956 -o /tmp/evaluation-result-1071409-1215168956/solver-1071409-1215168956 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzao HOME/instance-1071409-1215168956.xml 651914074 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= ce08ce1390ffd10aa41a85c876acf89f
RANDOM SEED=651914074

node46.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		: 3000.238
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		: 3000.238
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:       1872520 kB
Buffers:         13372 kB
Cached:         104512 kB
SwapCached:       5876 kB
Active:          99424 kB
Inactive:        32100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1872520 kB
SwapTotal:     4192956 kB
SwapFree:      4181068 kB
Dirty:            3568 kB
Writeback:           0 kB
Mapped:          21624 kB
Slab:            37524 kB
Committed_AS:   352164 kB
PageTables:       1504 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264992 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66208 MiB
End job on node46 at 2008-07-04 12:55:57