Trace number 4241890

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
R1: Mistral-2.0 2017-06-28SAT 0.0068649999 0.065471098

General information on the benchmark

NameCoveringArray/CoveringArray-elt-s1/
CoveringArray-elt-3-04-2-08.xml
MD5SUM17db91fb5ac5a139b323ef8c05694434
Bench CategoryCSP (decision problem)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.0036190001
Satisfiable
(Un)Satisfiability was proved
Number of variables64
Number of constraints44
Number of domains1
Minimum domain size8
Maximum domain size8
Distribution of domain sizes[{"size":8,"count":64}]
Minimum variable degree2
Maximum variable degree9
Distribution of variable degrees[{"degree":2,"count":32},{"degree":9,"count":32}]
Minimum constraint arity4
Maximum constraint arity9
Distribution of constraint arities[{"arity":4,"count":8},{"arity":8,"count":4},{"arity":9,"count":32}]
Number of extensional constraints8
Number of intensional constraints0
Distribution of constraint types[{"type":"extension","count":8},{"type":"allDifferent","count":4},{"type":"element","count":32}]
Optimization problemNO
Type of objective

Solver Data 

0.00/0.06	c Mistral-2017-06-28
0.00/0.06	s SATISFIABLE
0.00/0.06	v <instantiation type="solution">
0.00/0.06	v   <list> p[0][0] p[0][1] p[0][2] p[0][3] p[0][4] p[0][5] p[0][6] p[0][7] p[1][0] p[1][1] p[1][2] p[1][3] p[1][4] p[1][5] p[1][6] p[1][7] p[2][0] p[2][1] p[2][2] p[2][3] p[2][4] p[2][5] p[2][6] p[2][7] p[3][0] p[3][1] p[3][2] p[3][3] p[3][4] p[3][5] p[3][6] p[3][7] v[0][0] v[0][1] v[0][2] v[0][3] v[0][4] v[0][5] v[0][6] v[0][7] v[1][0] v[1][1] v[1][2] v[1][3] v[1][4] v[1][5] v[1][6] v[1][7] v[2][0] v[2][1] v[2][2] v[2][3] v[2][4] v[2][5] v[2][6] v[2][7] v[3][0] v[3][1] v[3][2] v[3][3] v[3][4] v[3][5] v[3][6] v[3][7] </list>
0.00/0.06	v   <values> 0 1 7 5 4 6 3 2 0 1 5 7 6 4 3 2 0 7 5 1 3 4 6 2 0 4 6 1 3 7 5 2 0 1 7 6 4 3 5 2 0 1 7 6 5 2 4 3 0 3 7 4 5 2 6 1 0 3 7 4 1 6 2 5 </values>
0.00/0.06	v </instantiation>

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2013 Olivier ROUSSEL

This is runsolver version 3.3.7 (svn: 2553)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4241890-1502073781/watcher-4241890-1502073781 -o /tmp/evaluation-result-4241890-1502073781/solver-4241890-1502073781 -C 2400 -W 2500 -M 15500 --bin-var /tmp/runsolver-exch-node127-1502041295-28343 --watchdog 2560 MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed 740398638 HOME/instance-4241890-1502073781.xml 

pid=402
running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2500 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 8192 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.01 2.05 2/180 405
/proc/meminfo: memFree=30143976/32770624 swapFree=0/354028
[pid=405] ppid=402 vsize=23672 CPUtime=0 cores=1,3,5,7
/proc/405/stat : 405 (runsolver) D 402 405 20633 0 -1 4202560 108 0 0 0 0 0 0 0 20 0 1 0 9571855 24240128 106 18446744073709551615 4194304 4338465 140730174855280 140730174852920 140669928735447 0 0 1 24578 18446744071580418449 0 0 17 7 0 0 0 0 0 6438912 6441760 26775552 140730174857356 140730174857802 140730174857802 140730174861258 0
/proc/405/statm: 5918 106 53 36 0 2156 0

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 405 sig 9
??? kill -405 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.0654711
CPU time (s): 0.006865
CPU user time (s): 0.005721
CPU system time (s): 0.001144
CPU usage (%): 10.4855
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.005721
system time used= 0.001144
maximum resident set size= 4372
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1285
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= 8
involuntary context switches= 1

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.002208 second user time and 0.006624 second system time

The end

Launcher Data 

Begin job on node127 at 2017-08-07 04:28:57
IDJOB=4241890
IDBENCH=139760
IDSOLVER=2622
FILE ID=node127/4241890-1502073781
RUNJOBID= node127-1502041295-28343
PBS_JOBID= 
Free space on /tmp= 62016 MiB

SOLVER NAME= Mistral-2.0 2017-06-28
BENCH NAME= XCSP17/CoveringArray/CoveringArray-elt-s1/CoveringArray-elt-3-04-2-08.xml
COMMAND LINE= MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4241890-1502073781/watcher-4241890-1502073781 -o /tmp/evaluation-result-4241890-1502073781/solver-4241890-1502073781 -C 2400 -W 2500 -M 15500 --bin-var /tmp/runsolver-exch-node127-1502041295-28343 --watchdog 2560  MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed 740398638 HOME/instance-4241890-1502073781.xml

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 17db91fb5ac5a139b323ef8c05694434
RANDOM SEED=740398638

node127.alineos.net Linux 3.10.0-514.16.1.el7.x86_64 #1 SMP Wed Apr 12 15:04:24 UTC 2017

/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:
performance

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.92
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
initial apicid	: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.92
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
initial apicid	: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.92
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
initial apicid	: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.92
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
initial apicid	: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32770624 kB
MemFree:        30144072 kB
MemAvailable:   30472472 kB
Buffers:          134168 kB
Cached:           474660 kB
SwapCached:            0 kB
Active:          1853600 kB
Inactive:         362560 kB
Active(anon):    1607812 kB
Inactive(anon):     8532 kB
Active(file):     245788 kB
Inactive(file):   354028 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:              5856 kB
Writeback:             0 kB
AnonPages:       1593216 kB
Mapped:            32580 kB
Shmem:              8868 kB
Slab:             113332 kB
SReclaimable:      88840 kB
SUnreclaim:        24492 kB
KernelStack:        3248 kB
PageTables:         7356 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:    1853676 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:    782336 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      118144 kB
DirectMap2M:    33427456 kB

Free space on /tmp at the end= 62012 MiB
End job on node127 at 2017-08-07 04:28:57