Trace number 1088708

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
MDG-probe 2008-06-27UNSAT 0.741886 0.753296

DiagnosticValue
ASSIGNMENTS0
CHECKS1

General information on the benchmark

Namecsp/graphColoring/school/
normalized-school1-nsh-13.xml
MD5SUM04705b32837a4b67cef23bd35ddd5cfa
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 benchmark0.694894
Satisfiable
(Un)Satisfiability was proved
Number of variables352
Number of constraints14612
Maximum constraint arity2
Maximum domain size13
Number of constraints which are defined in extension0
Number of constraints which are defined in intension14612
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.13	c mistral-prime version 1.313
0.00/0.13	c 
0.00/0.13	c Parsing xml file
0.00/0.13	c          domains...............     0	(1 domains)
0.00/0.13	c          variables.............     0	(352 variables)
0.00/0.13	c          predicates............     0	(1 predicates)
0.00/0.13	c          constraints...........  0.48	(14612 constraints)
0.39/0.49	c Parsing time:   0.48
0.39/0.49	c
0.39/0.49	c Building model
0.58/0.64	c      8650 AllDifferent constraints infered
0.58/0.69	c         0 constants
0.58/0.69	c         0 Boolean variables    (+0)
0.58/0.69	c         0 range variables      (+0)
0.58/0.69	c         0 domain (b) variables (+0)
0.58/0.69	c       352 domain (l) variables (+0)
0.58/0.69	c     14612 constraints          (+8650)
0.58/0.69	c         0 values 
0.58/0.69	c Building time:   0.19
0.58/0.69	c
0.58/0.69	c Solving instance
0.58/0.69	c          heuristic = dom/wdeg
0.58/0.69	c          Randomized probing iteration = 100
0.58/0.69	c          probing limit = 30
0.58/0.69	c          level based weights = no
0.58/0.69	c          impact probing = no
0.58/0.69	c          restart policy = No restart
0.58/0.69	c          probing -3.9953e-17
0.58/0.69	c          Probing Nodes     0
0.58/0.69	c Solving time:      0
0.58/0.69	c
0.58/0.69	s UNSATISFIABLE
0.58/0.69	d CHECKS 1
0.58/0.69	d ASSIGNMENTS 0

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-1088708-1215259797/watcher-1088708-1215259797 -o /tmp/evaluation-result-1088708-1215259797/solver-1088708-1215259797 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1088708-1215259797.xml -v 1 -rs 1599352543 -probe 1 -ph 0 -heu dom/wdeg -res no 

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: 1.86 1.97 1.99 4/81 21128
/proc/meminfo: memFree=1683088/2055920 swapFree=4117840/4192956
[pid=21128] ppid=21126 vsize=6260 CPUtime=0.19
/proc/21128/stat : 21128 (xsolve) R 21126 21128 20477 0 -1 4194304 891 0 0 0 19 0 0 0 19 0 1 0 2004952021 6410240 857 996147200 134512640 135239859 4294956144 18446744073709551615 134650937 0 0 4096 0 0 0 0 17 1 0 0
/proc/21128/statm: 1565 857 391 177 0 468 0

[startup+0.259842 s]
/proc/loadavg: 1.86 1.97 1.99 4/81 21128
/proc/meminfo: memFree=1683088/2055920 swapFree=4117840/4192956
[pid=21128] ppid=21126 vsize=6644 CPUtime=0.25
/proc/21128/stat : 21128 (xsolve) R 21126 21128 20477 0 -1 4194304 983 0 0 0 24 1 0 0 19 0 1 0 2004952021 6803456 949 996147200 134512640 135239859 4294956144 18446744073709551615 134933140 0 0 4096 0 0 0 0 17 1 0 0
/proc/21128/statm: 1661 949 391 177 0 564 0
Current children cumulated CPU time (s) 0.25
Current children cumulated vsize (KiB) 6644

[startup+0.302851 s]
/proc/loadavg: 1.86 1.97 1.99 4/81 21128
/proc/meminfo: memFree=1683088/2055920 swapFree=4117840/4192956
[pid=21128] ppid=21126 vsize=6920 CPUtime=0.29
/proc/21128/stat : 21128 (xsolve) R 21126 21128 20477 0 -1 4194304 1067 0 0 0 28 1 0 0 19 0 1 0 2004952021 7086080 1033 996147200 134512640 135239859 4294956144 18446744073709551615 10952619 0 0 4096 0 0 0 0 17 1 0 0
/proc/21128/statm: 1730 1033 391 177 0 633 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6920

[startup+0.402869 s]
/proc/loadavg: 1.86 1.97 1.99 4/81 21128
/proc/meminfo: memFree=1683088/2055920 swapFree=4117840/4192956
[pid=21128] ppid=21126 vsize=7688 CPUtime=0.39
/proc/21128/stat : 21128 (xsolve) R 21126 21128 20477 0 -1 4194304 1256 0 0 0 38 1 0 0 20 0 1 0 2004952021 7872512 1222 996147200 134512640 135239859 4294956144 18446744073709551615 134613841 0 0 4096 0 0 0 0 17 1 0 0
/proc/21128/statm: 1922 1222 391 177 0 825 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 7688

[startup+0.701936 s]
/proc/loadavg: 1.86 1.97 1.99 4/81 21128
/proc/meminfo: memFree=1683088/2055920 swapFree=4117840/4192956
[pid=21128] ppid=21126 vsize=26572 CPUtime=0.68
/proc/21128/stat : 21128 (xsolve) R 21126 21128 20477 0 -1 4194304 5982 0 0 0 65 3 0 0 23 0 1 0 2004952021 27209728 5889 996147200 134512640 135239859 4294956144 18446744073709551615 4159148701 0 0 4096 0 0 0 0 17 1 0 0
/proc/21128/statm: 6643 5889 430 177 0 5546 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 26572

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

Child status: 0
Real time (s): 0.753296
CPU time (s): 0.741886
CPU user time (s): 0.698893
CPU system time (s): 0.042993
CPU usage (%): 98.4853
Max. virtual memory (cumulated for all children) (KiB): 26572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.698893
system time used= 0.042993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5992
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= 7
involuntary context switches= 44

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node47 at 2008-07-05 14:09:58
IDJOB=1088708
IDBENCH=58097
IDSOLVER=342
FILE ID=node47/1088708-1215259797
PBS_JOBID= 7882081
Free space on /tmp= 66508 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/graphColoring/school/normalized-school1-nsh-13.xml
COMMAND LINE= HOME/xsolve BENCHNAME -v 1 -rs RANDOMSEED -probe 1 -ph 0 -heu dom/wdeg -res no
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1088708-1215259797/watcher-1088708-1215259797 -o /tmp/evaluation-result-1088708-1215259797/solver-1088708-1215259797 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1088708-1215259797.xml -v 1 -rs 1599352543 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 04705b32837a4b67cef23bd35ddd5cfa
RANDOM SEED=1599352543

node47.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		: 3000.281
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		: 3000.281
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:       1683568 kB
Buffers:         23320 kB
Cached:         181444 kB
SwapCached:      68936 kB
Active:         201604 kB
Inactive:       116920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1683568 kB
SwapTotal:     4192956 kB
SwapFree:      4117840 kB
Dirty:            5500 kB
Writeback:           0 kB
Mapped:         129900 kB
Slab:            38788 kB
Committed_AS:  4150144 kB
PageTables:       2124 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= 66508 MiB
End job on node47 at 2008-07-05 14:09:58