Trace number 1090505

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 0.739886 0.747545

DiagnosticValue
CHECKS366537

General information on the benchmark

Namecsp/graphColoring/hos/
normalized-ash608GPIA-3.xml
MD5SUM04dc8b9bba14d59013bca23292d13397
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 benchmark0.350945
Satisfiable
(Un)Satisfiability was proved
Number of variables1216
Number of constraints7844
Maximum constraint arity2
Maximum domain size3
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7844
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.00	c [ This is CaSPERzao (C) mvc@di.fct.unl.pt ]
0.00/0.00	c Parsing = 1
0.19/0.21	c Building = 1
0.49/0.56	c [ NumberOfVariables = 1216 ]
0.49/0.56	c [ NumberOfConstraints = 7844 ]
0.49/0.56	c [ SizeOfSearchSpace(log2) = 1927.31 ]
0.49/0.56	c SymmetrySearch = 1
0.49/0.59	c InitialPropagation = 1
0.58/0.60	c [ SizeOfSearchSpace(log2) = 1927.31 ]
0.58/0.60	c InitialSAC = 1
0.58/0.64	c [ SizeOfSearchSpace(log2) = 1927.31 ]
0.58/0.64	c Search(SampleFF) : 
0.68/0.74	c [ Sampling domwdeg ]
0.68/0.74	c Search(SampleFF) = 0
0.68/0.74	s UNSATISFIABLE
0.68/0.74	d CHECKS 366537
0.68/0.74	c [ TotalFails = 39 ]
0.68/0.74	c [ NumberOfRestarts = 0 ]
0.68/0.74	c [ TotalTime = 0.534979 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-1090505-1215271450/watcher-1090505-1215271450 -o /tmp/evaluation-result-1090505-1215271450/solver-1090505-1215271450 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzao HOME/instance-1090505-1215271450.xml 1817037030 

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: 2.21 2.07 2.02 4/75 19432
/proc/meminfo: memFree=1687336/2055920 swapFree=4180672/4192956
[pid=19432] ppid=19430 vsize=5352 CPUtime=0
/proc/19432/stat : 19432 (casperzao) R 19430 19432 17011 0 -1 4194304 228 0 0 0 0 0 0 0 18 0 1 0 261618875 5480448 202 996147200 134512640 135477443 4294956224 18446744073709551615 6554812 0 0 4096 0 0 0 0 17 1 0 0
/proc/19432/statm: 1338 202 165 235 0 27 0

[startup+0.093371 s]
/proc/loadavg: 2.21 2.07 2.02 4/75 19432
/proc/meminfo: memFree=1687336/2055920 swapFree=4180672/4192956
[pid=19432] ppid=19430 vsize=6496 CPUtime=0.08
/proc/19432/stat : 19432 (casperzao) R 19430 19432 17011 0 -1 4194304 724 0 0 0 8 0 0 0 18 0 1 0 261618875 6651904 684 996147200 134512640 135477443 4294956224 18446744073709551615 6985339 0 0 4096 0 0 0 0 17 1 0 0
/proc/19432/statm: 1624 684 369 235 0 325 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6496

[startup+0.102372 s]
/proc/loadavg: 2.21 2.07 2.02 4/75 19432
/proc/meminfo: memFree=1687336/2055920 swapFree=4180672/4192956
[pid=19432] ppid=19430 vsize=6496 CPUtime=0.09
/proc/19432/stat : 19432 (casperzao) R 19430 19432 17011 0 -1 4194304 749 0 0 0 9 0 0 0 18 0 1 0 261618875 6651904 709 996147200 134512640 135477443 4294956224 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/19432/statm: 1624 710 369 235 0 325 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6496

[startup+0.301392 s]
/proc/loadavg: 2.21 2.07 2.02 4/75 19432
/proc/meminfo: memFree=1687336/2055920 swapFree=4180672/4192956
[pid=19432] ppid=19430 vsize=101444 CPUtime=0.29
/proc/19432/stat : 19432 (casperzao) R 19430 19432 17011 0 -1 4194304 3355 0 0 0 23 6 0 0 19 0 1 0 261618875 103878656 1307 996147200 134512640 135477443 4294956224 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/19432/statm: 25361 1307 419 235 0 24062 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 101444

[startup+0.701439 s]
/proc/loadavg: 2.21 2.07 2.02 4/75 19432
/proc/meminfo: memFree=1687336/2055920 swapFree=4180672/4192956
[pid=19432] ppid=19430 vsize=101788 CPUtime=0.68
/proc/19432/stat : 19432 (casperzao) R 19430 19432 17011 0 -1 4194304 10469 0 0 0 45 23 0 0 23 0 1 0 261618875 104230912 2207 996147200 134512640 135477443 4294956224 18446744073709551615 134586775 0 0 4096 0 0 0 0 17 1 0 0
/proc/19432/statm: 25447 2207 490 235 0 24148 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 101788

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

Child status: 0
Real time (s): 0.747545
CPU time (s): 0.739886
CPU user time (s): 0.500923
CPU system time (s): 0.238963
CPU usage (%): 98.9754
Max. virtual memory (cumulated for all children) (KiB): 101788

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.500923
system time used= 0.238963
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10472
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= 35

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node82 at 2008-07-05 17:24:11
IDJOB=1090505
IDBENCH=58449
IDSOLVER=361
FILE ID=node82/1090505-1215271450
PBS_JOBID= 7882122
Free space on /tmp= 66488 MiB

SOLVER NAME= casper zao
BENCH NAME= CPAI08/csp/graphColoring/hos/normalized-ash608GPIA-3.xml
COMMAND LINE= HOME/casperzao BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1090505-1215271450/watcher-1090505-1215271450 -o /tmp/evaluation-result-1090505-1215271450/solver-1090505-1215271450 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzao HOME/instance-1090505-1215271450.xml 1817037030 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 04dc8b9bba14d59013bca23292d13397
RANDOM SEED=1817037030

node82.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		: 3000.239
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		: 3000.239
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1687816 kB
Buffers:         40200 kB
Cached:         227336 kB
SwapCached:       5892 kB
Active:         225824 kB
Inactive:        95124 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1687816 kB
SwapTotal:     4192956 kB
SwapFree:      4180672 kB
Dirty:            4016 kB
Writeback:           0 kB
Mapped:          60132 kB
Slab:            32320 kB
Committed_AS:   696580 kB
PageTables:       1884 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66488 MiB
End job on node82 at 2008-07-05 17:24:11