Trace number 1035882

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 0.041993 0.0444779

DiagnosticValue
ASSIGNMENTS0
CHECKS3928

General information on the benchmark

Namecsp/BH-4-7/
normalized-BlackHole-4-7-h-4_ext.xml
MD5SUMd735a89844d9b44014d09d77c6eb30f0
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 benchmark0.041992
Satisfiable
(Un)Satisfiability was proved
Number of variables112
Number of constraints1261
Maximum constraint arity2
Maximum domain size28
Number of constraints which are defined in extension1261
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.00	c mistral-prime version 1.313
0.00/0.00	c 
0.00/0.00	c Parsing xml file
0.00/0.00	c          domains...............     0	(4 domains)
0.00/0.00	c          variables.............     0	(112 variables)
0.00/0.00	c          relations.............     0	(8 relations)
0.00/0.00	c          constraints...........  0.02	(1261 constraints)
0.00/0.02	c Parsing time:   0.02
0.00/0.02	c
0.00/0.02	c Building model
0.00/0.03	c         1 AllDifferent constraints infered
0.00/0.03	c         0 constants
0.00/0.03	c         0 Boolean variables    (+0)
0.00/0.03	c         1 range variables      (+0)
0.00/0.03	c         0 domain (b) variables (+0)
0.00/0.03	c       109 domain (l) variables (+0)
0.00/0.03	c      1180 constraints          (+1)
0.00/0.03	c         0 values 
0.00/0.03	c Building time:   0.01
0.00/0.03	c
0.00/0.03	c Solving instance
0.00/0.03	c          heuristic = dom/wdeg
0.00/0.03	c          Randomized probing iteration = 100
0.00/0.03	c          probing limit = 30
0.00/0.04	c          level based weights = no
0.00/0.04	c          impact probing = no
0.00/0.04	c          restart policy = No restart
0.00/0.04	c          probing 1.1096e-18
0.00/0.04	c          Probing Nodes     0
0.00/0.04	c Solving time:      0
0.00/0.04	c
0.00/0.04	s UNSATISFIABLE
0.00/0.04	d CHECKS 3928
0.00/0.04	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-1035882-1214954300/watcher-1035882-1214954300 -o /tmp/evaluation-result-1035882-1214954300/solver-1035882-1214954300 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1035882-1214954300.xml -v 1 -rs 1211819986 -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: 1.92 1.97 1.91 4/73 22158
/proc/meminfo: memFree=840776/2055920 swapFree=4179776/4192956
[pid=22158] ppid=22156 vsize=4584 CPUtime=0
/proc/22158/stat : 22158 (xsolve) R 22156 22158 21287 0 -1 4194304 316 0 0 0 0 0 0 0 21 0 1 0 1974402371 4694016 283 996147200 134512640 135239859 4294956144 18446744073709551615 134565568 0 0 4096 0 0 0 0 17 0 0 0
/proc/22158/statm: 1146 293 248 177 0 49 0

[startup+0.011413 s]
/proc/loadavg: 1.92 1.97 1.91 4/73 22158
/proc/meminfo: memFree=840776/2055920 swapFree=4179776/4192956
[pid=22158] ppid=22156 vsize=4724 CPUtime=0
/proc/22158/stat : 22158 (xsolve) R 22156 22158 21287 0 -1 4194304 499 0 0 0 0 0 0 0 21 0 1 0 1974402371 4837376 465 996147200 134512640 135239859 4294956144 18446744073709551615 9180795 0 0 4096 0 0 0 0 17 0 0 0
/proc/22158/statm: 1181 465 382 177 0 84 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4724

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

[startup+0.011413 s]
/proc/loadavg: 1.92 1.97 1.91 4/73 22158
/proc/meminfo: memFree=840776/2055920 swapFree=4179776/4192956
[pid=22158] ppid=22156 vsize=4724 CPUtime=0
/proc/22158/stat : 22158 (xsolve) R 22156 22158 21287 0 -1 4194304 499 0 0 0 0 0 0 0 21 0 1 0 1974402371 4837376 465 996147200 134512640 135239859 4294956144 18446744073709551615 9180795 0 0 4096 0 0 0 0 17 0 0 0
/proc/22158/statm: 1181 465 382 177 0 84 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4724

Child status: 0
Real time (s): 0.0444779
CPU time (s): 0.041993
CPU user time (s): 0.036994
CPU system time (s): 0.004999
CPU usage (%): 94.4132
Max. virtual memory (cumulated for all children) (KiB): 4724

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.036994
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= 777
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= 16

runsolver used 0.000999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node53 at 2008-07-02 01:18:20
IDJOB=1035882
IDBENCH=53422
IDSOLVER=342
FILE ID=node53/1035882-1214954300
PBS_JOBID= 7870227
Free space on /tmp= 66544 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/BH-4-7/normalized-BlackHole-4-7-h-4_ext.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-1035882-1214954300/watcher-1035882-1214954300 -o /tmp/evaluation-result-1035882-1214954300/solver-1035882-1214954300 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1035882-1214954300.xml -v 1 -rs 1211819986 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= d735a89844d9b44014d09d77c6eb30f0
RANDOM SEED=1211819986

node53.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		: 3000.222
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		: 3000.222
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:        841200 kB
Buffers:         56584 kB
Cached:        1012636 kB
SwapCached:       7084 kB
Active:         141604 kB
Inactive:       999912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        841200 kB
SwapTotal:     4192956 kB
SwapFree:      4179776 kB
Dirty:            1008 kB
Writeback:           0 kB
Mapped:          78560 kB
Slab:            58560 kB
Committed_AS:  3763108 kB
PageTables:       1852 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= 66544 MiB
End job on node53 at 2008-07-02 01:18:21