Trace number 1084041

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 1.25881 1.27744

DiagnosticValue
ASSIGNMENTS0
CHECKS1

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-2.xml
MD5SUMc461fd9f78bea6a7f910d09245157b44
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 benchmark1.11883
Satisfiable
(Un)Satisfiability was proved
Number of variables200
Number of constraints14950
Maximum constraint arity2
Maximum domain size100
Number of constraints which are defined in extension0
Number of constraints which are defined in intension14950
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.21	c mistral-prime version 1.313
0.00/0.21	c 
0.00/0.21	c Parsing xml file
0.00/0.21	c          domains...............     0	(1 domains)
0.00/0.21	c          variables.............     0	(200 variables)
0.00/0.21	c          predicates............     0	(2 predicates)
0.00/0.21	c          constraints...........  0.61	(14950 constraints)
0.58/0.62	c Parsing time:   0.61
0.58/0.62	c
0.58/0.62	c Building model
0.58/0.69	c       100 AllDifferent constraints infered
0.87/0.95	c         0 constants
0.87/0.95	c         0 Boolean variables    (+0)
0.87/0.95	c         0 range variables      (+0)
0.87/0.95	c       200 domain (b) variables (+29700)
0.87/0.95	c         0 domain (l) variables (+0)
0.87/0.95	c     14950 constraints          (+29800)
0.87/0.95	c         0 values 
0.87/0.95	c Building time:   0.33
0.87/0.95	c
0.87/0.95	c Solving instance
0.87/0.95	c          heuristic = dom/wdeg
0.87/0.95	c          Randomized probing iteration = 100
0.87/0.95	c          probing limit = 30
0.87/0.95	c          level based weights = no
0.87/0.95	c          impact probing = no
0.87/0.95	c          restart policy = No restart
0.87/0.95	c          probing 5.3289e-17
0.87/0.95	c          Probing Nodes     0
0.87/0.95	c Solving time:      0
0.87/0.95	c
0.87/0.95	s UNSATISFIABLE
0.87/0.95	d CHECKS 1
0.87/0.95	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-1084041-1215229730/watcher-1084041-1215229730 -o /tmp/evaluation-result-1084041-1215229730/solver-1084041-1215229730 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1084041-1215229730.xml -v 1 -rs 1193727150 -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: 2.05 2.12 2.05 4/72 5947
/proc/meminfo: memFree=1675104/2055920 swapFree=4180028/4192956
[pid=5947] ppid=5945 vsize=820 CPUtime=0
/proc/5947/stat : 5947 (xsolve) R 5945 5947 4509 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 2001948409 839680 25 996147200 134512640 135239859 4294956144 18446744073709551615 10588964 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/5947/statm: 205 25 19 177 0 3 0

[startup+0.21193 s]
/proc/loadavg: 2.05 2.12 2.05 4/72 5947
/proc/meminfo: memFree=1675104/2055920 swapFree=4180028/4192956
[pid=5947] ppid=5945 vsize=10132 CPUtime=0.19
/proc/5947/stat : 5947 (xsolve) R 5945 5947 4509 0 -1 4194304 1869 0 0 0 18 1 0 0 19 0 1 0 2001948409 10375168 1835 996147200 134512640 135239859 4294956144 18446744073709551615 4159010128 0 0 4096 0 0 0 0 17 1 0 0
/proc/5947/statm: 2533 1835 394 177 0 1436 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 10132

[startup+0.301734 s]
/proc/loadavg: 2.05 2.12 2.05 4/72 5947
/proc/meminfo: memFree=1675104/2055920 swapFree=4180028/4192956
[pid=5947] ppid=5945 vsize=12728 CPUtime=0.29
/proc/5947/stat : 5947 (xsolve) R 5945 5947 4509 0 -1 4194304 2533 0 0 0 27 2 0 0 19 0 1 0 2001948409 13033472 2433 996147200 134512640 135239859 4294956144 18446744073709551615 134618072 0 0 4096 0 0 0 0 17 1 0 0
/proc/5947/statm: 3182 2433 394 177 0 2085 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12728

[startup+0.401741 s]
/proc/loadavg: 2.05 2.12 2.05 4/72 5947
/proc/meminfo: memFree=1675104/2055920 swapFree=4180028/4192956
[pid=5947] ppid=5945 vsize=15228 CPUtime=0.39
/proc/5947/stat : 5947 (xsolve) R 5945 5947 4509 0 -1 4194304 3202 0 0 0 36 3 0 0 20 0 1 0 2001948409 15593472 3102 996147200 134512640 135239859 4294956144 18446744073709551615 134888801 0 0 4096 0 0 0 0 17 1 0 0
/proc/5947/statm: 3807 3102 394 177 0 2710 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 15228

[startup+0.701781 s]
/proc/loadavg: 2.05 2.12 2.05 4/72 5947
/proc/meminfo: memFree=1675104/2055920 swapFree=4180028/4192956
[pid=5947] ppid=5945 vsize=25480 CPUtime=0.68
/proc/5947/stat : 5947 (xsolve) R 5945 5947 4509 0 -1 4194304 5893 0 0 0 63 5 0 0 23 0 1 0 2001948409 26091520 5600 996147200 134512640 135239859 4294956144 18446744073709551615 11023995 0 0 4096 0 0 0 0 17 1 0 0
/proc/5947/statm: 6370 5600 427 177 0 5273 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 25480

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

[startup+0.901799 s]
/proc/loadavg: 2.05 2.12 2.05 4/72 5947
/proc/meminfo: memFree=1675104/2055920 swapFree=4180028/4192956
[pid=5947] ppid=5945 vsize=84216 CPUtime=0.87
/proc/5947/stat : 5947 (xsolve) R 5945 5947 4509 0 -1 4194304 20579 0 0 0 75 12 0 0 25 0 1 0 2001948409 86237184 20253 996147200 134512640 135239859 4294956144 18446744073709551615 11023168 0 0 4096 0 0 0 0 17 1 0 0
/proc/5947/statm: 21054 20253 427 177 0 19957 0
Current children cumulated CPU time (s) 0.87
Current children cumulated vsize (KiB) 84216

[startup+1.10182 s]
/proc/loadavg: 2.05 2.12 2.05 4/72 5947
/proc/meminfo: memFree=1675104/2055920 swapFree=4180028/4192956
[pid=5947] ppid=5945 vsize=100852 CPUtime=1.08
/proc/5947/stat : 5947 (xsolve) R 5945 5947 4509 0 -1 4194304 24691 0 0 0 92 16 0 0 25 0 1 0 2001948409 103272448 24365 996147200 134512640 135239859 4294956144 18446744073709551615 11019574 0 0 4096 0 0 0 0 17 1 0 0
/proc/5947/statm: 25213 24365 437 177 0 24116 0
Current children cumulated CPU time (s) 1.08
Current children cumulated vsize (KiB) 100852

[startup+1.20183 s]
/proc/loadavg: 2.05 2.12 2.05 3/73 5948
/proc/meminfo: memFree=1654872/2055920 swapFree=4180028/4192956
[pid=5947] ppid=5945 vsize=24484 CPUtime=1.18
/proc/5947/stat : 5947 (xsolve) R 5945 5947 4509 0 -1 4194304 24697 0 0 0 101 17 0 0 25 0 1 0 2001948409 25071616 5377 996147200 134512640 135239859 4294956144 18446744073709551615 11021820 0 0 4096 0 0 0 0 17 1 0 0
/proc/5947/statm: 6121 5377 443 177 0 5024 0
Current children cumulated CPU time (s) 1.18
Current children cumulated vsize (KiB) 24484

Child status: 0
Real time (s): 1.27744
CPU time (s): 1.25881
CPU user time (s): 1.07983
CPU system time (s): 0.178972
CPU usage (%): 98.5414
Max. virtual memory (cumulated for all children) (KiB): 100852

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.07984
system time used= 0.178972
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24700
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= 51

runsolver used 0.004999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node4 at 2008-07-05 05:48:50
IDJOB=1084041
IDBENCH=57522
IDSOLVER=342
FILE ID=node4/1084041-1215229730
PBS_JOBID= 7881847
Free space on /tmp= 66504 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-2.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-1084041-1215229730/watcher-1084041-1215229730 -o /tmp/evaluation-result-1084041-1215229730/solver-1084041-1215229730 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1084041-1215229730.xml -v 1 -rs 1193727150 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= c461fd9f78bea6a7f910d09245157b44
RANDOM SEED=1193727150

node4.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		: 3000.213
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		: 3000.213
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:       1675584 kB
Buffers:         55212 kB
Cached:         192368 kB
SwapCached:       7012 kB
Active:         211004 kB
Inactive:       109772 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1675584 kB
SwapTotal:     4192956 kB
SwapFree:      4180028 kB
Dirty:            2780 kB
Writeback:           0 kB
Mapped:          80712 kB
Slab:            44688 kB
Committed_AS:  3376700 kB
PageTables:       1996 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= 66504 MiB
End job on node4 at 2008-07-05 05:48:52