Trace number 4261395

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
Mistral-2.0 2017-07-28SAT 0.066845998 0.15279099

General information on the benchmark

NameLatinSquare/LatinSquare-xcsp2-qwh10/
qwh-10-57-7_X2.xml
MD5SUMa3870f7360a399087a577316c39ea51f
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 benchmark0.028399
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of constraints900
Number of domains11
Minimum domain size1
Maximum domain size10
Distribution of domain sizes[{"size":1,"count":43},{"size":10,"count":57}]
Minimum variable degree18
Maximum variable degree18
Distribution of variable degrees[{"degree":18,"count":100}]
Minimum constraint arity2
Maximum constraint arity2
Distribution of constraint arities[{"arity":2,"count":900}]
Number of extensional constraints900
Number of intensional constraints0
Distribution of constraint types[{"type":"extension","count":900}]
Optimization problemNO
Type of objective

Solver Data 

0.00/0.08	c 280717
0.01/0.14	s SATISFIABLE
0.01/0.14	v <instantiation type="solution">
0.01/0.14	v   <list> x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 x16 x17 x18 x19 x20 x21 x22 x23 x24 x25 x26 x27 x28 x29 x30 x31 x32 x33 x34 x35 x36 x37 x38 x39 x40 x41 x42 x43 x44 x45 x46 x47 x48 x49 x50 x51 x52 x53 x54 x55 x56 x57 x58 x59 x60 x61 x62 x63 x64 x65 x66 x67 x68 x69 x70 x71 x72 x73 x74 x75 x76 x77 x78 x79 x80 x81 x82 x83 x84 x85 x86 x87 x88 x89 x90 x91 x92 x93 x94 x95 x96 x97 x98 x99 </list>
0.01/0.14	v   <values> 1 7 3 0 5 9 6 2 4 8 8 4 2 7 1 6 0 9 3 5 4 2 0 3 6 1 5 8 9 7 9 0 8 5 3 4 7 1 2 6 6 3 1 4 7 2 9 5 8 0 0 1 5 2 4 8 3 6 7 9 7 5 9 6 8 0 4 3 1 2 5 8 7 9 0 3 2 4 6 1 3 9 6 8 2 7 1 0 5 4 2 6 4 1 9 5 8 7 0 3 </values>
0.01/0.14	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-4261395-1502398327/watcher-4261395-1502398327 -o /tmp/evaluation-result-4261395-1502398327/solver-4261395-1502398327 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node133-1502333976-23275 --watchdog 2580 MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed 689233056 HOME/instance-4261395-1502398327.xml 

pid=2248
running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2520 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2550 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2520 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: 1.99 2.04 2.05 3/184 2251
/proc/meminfo: memFree=30909820/32770624 swapFree=0/419228
[pid=2251] ppid=2248 vsize=23672 CPUtime=0 cores=1,3,5,7
/proc/2251/stat : 2251 (runsolver) D 2248 2251 1774 0 -1 4202560 107 0 0 0 0 0 0 0 20 0 1 0 87647924 24240128 108 18446744073709551615 4194304 4338465 140723859341504 140723859339144 140344452149975 0 0 1 24578 18446744071580418449 0 0 17 3 0 0 0 0 0 6438912 6441760 29642752 140723859349643 140723859350089 140723859350089 140723859353546 0
/proc/2251/statm: 5918 108 54 36 0 2156 0

[startup+0.10011 s]
/proc/loadavg: 1.99 2.04 2.05 3/184 2251
/proc/meminfo: memFree=30909820/32770624 swapFree=0/419228
[pid=2251] ppid=2248 vsize=34208 CPUtime=0.01 cores=1,3,5,7
/proc/2251/stat : 2251 (MistralXCSP) R 2248 2251 1774 0 -1 4202496 2378 0 0 0 1 0 0 0 20 0 1 0 87647924 35028992 2188 18446744073709551615 4194304 7396336 140734860584912 140734860581912 139768463690752 0 0 1 0 0 0 0 17 5 0 0 8 0 0 9496464 9501696 40095744 140734860591539 140734860591688 140734860591688 140734860595145 0
/proc/2251/statm: 8552 2188 667 782 0 1568 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 34208

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 2251 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.10011 s]
/proc/loadavg: 1.99 2.04 2.05 3/184 2251
/proc/meminfo: memFree=30909820/32770624 swapFree=0/419228
[pid=2251] ppid=2248 vsize=34208 CPUtime=0.01 cores=1,3,5,7
/proc/2251/stat : 2251 (MistralXCSP) R 2248 2251 1774 0 -1 4202496 2378 0 0 0 1 0 0 0 20 0 1 0 87647924 35028992 2188 18446744073709551615 4194304 7396336 140734860584912 140734860581912 139768463690752 0 0 1 0 0 0 0 17 5 0 0 8 0 0 9496464 9501696 40095744 140734860591539 140734860591688 140734860591688 140734860595145 0
/proc/2251/statm: 8552 2188 667 782 0 1568 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 34208

Child status: 0
Real time (s): 0.152791
CPU time (s): 0.066846
CPU user time (s): 0.03891
CPU system time (s): 0.027936
CPU usage (%): 43.75
Max. virtual memory (cumulated for all children) (KiB): 34208

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.03891
system time used= 0.027936
maximum resident set size= 75016
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 18942
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= 6
involuntary context switches= 1

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.005038 second user time and 0.004031 second system time

The end

Launcher Data 

Begin job on node133 at 2017-08-10 22:38:00
IDJOB=4261395
IDBENCH=138931
IDSOLVER=2649
FILE ID=node133/4261395-1502398327
RUNJOBID= node133-1502333976-23275
PBS_JOBID= 
Free space on /tmp= 62024 MiB

SOLVER NAME= Mistral-2.0 2017-07-28
BENCH NAME= XCSP17/LatinSquare/LatinSquare-xcsp2-qwh10/qwh-10-57-7_X2.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-4261395-1502398327/watcher-4261395-1502398327 -o /tmp/evaluation-result-4261395-1502398327/solver-4261395-1502398327 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node133-1502333976-23275 --watchdog 2580  MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed 689233056 HOME/instance-4261395-1502398327.xml

TIME LIMIT= 2520 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= a3870f7360a399087a577316c39ea51f
RANDOM SEED=689233056

node133.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	: 5333.17
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	: 5333.17
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	: 5333.17
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	: 5333.17
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:        30909560 kB
MemAvailable:   31707504 kB
Buffers:          280132 kB
Cached:           812976 kB
SwapCached:            0 kB
Active:           975984 kB
Inactive:         452340 kB
Active(anon):     335564 kB
Inactive(anon):    33112 kB
Active(file):     640420 kB
Inactive(file):   419228 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:              5900 kB
Writeback:             4 kB
AnonPages:        334892 kB
Mapped:            51028 kB
Shmem:             33468 kB
Slab:             135584 kB
SReclaimable:     108260 kB
SUnreclaim:        27324 kB
KernelStack:        3280 kB
PageTables:         5424 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     596956 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      354332 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:     43008 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      132480 kB
DirectMap2M:    33413120 kB

Free space on /tmp at the end= 62020 MiB
End job on node133 at 2017-08-10 22:38:00