Trace number 4265222

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
BTD 2017-08-10SAT 0.032960001 0.123531

General information on the benchmark

NameLatinSquare/LatinSquare-xcsp2-bqwh18-141/
bqwh-18-141-31_X2.xml
MD5SUMabc615a3402994e7b41e934fabdebd2e
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 benchmark0.032960001
Satisfiable
(Un)Satisfiability was proved
Number of variables141
Number of constraints36
Number of domains132
Minimum domain size1
Maximum domain size7
Distribution of domain sizes[{"size":1,"count":2},{"size":2,"count":9},{"size":3,"count":32},{"size":4,"count":50},{"size":5,"count":33},{"size":6,"count":14},{"size":7,"count":1}]
Minimum variable degree2
Maximum variable degree2
Distribution of variable degrees[{"degree":2,"count":141}]
Minimum constraint arity7
Maximum constraint arity8
Distribution of constraint arities[{"arity":7,"count":6},{"arity":8,"count":30}]
Number of extensional constraints0
Number of intensional constraints0
Distribution of constraint types[{"type":"allDifferent","count":36}]
Optimization problemNO
Type of objective

Solver Data 

0.00/0.10	c Version: 2017-08-10
0.01/0.12	s SATISFIABLE
0.01/0.12	v <instantiation type="solution">
0.01/0.12	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 x100 x101 x102 x103 x104 x105 x106 x107 x108 x109 x110 x111 x112 x113 x114 x115 x116 x117 x118 x119 x120 x121 x122 x123 x124 x125 x126 x127 x128 x129 x130 x131 x132 x133 x134 x135 x136 x137 x138 x139 x140 </list>
0.01/0.12	v <values> 17 14 12 15 2 9 16 3 8 12 14 5 0 16 3 2 6 3 16 12 17 11 7 15 4 7 16 3 6 1 5 10 8 5 9 16 3 15 6 7 0 12 5 9 14 4 6 14 16 8 2 17 3 0 9 5 14 3 10 12 6 3 16 14 4 6 15 9 5 16 17 0 15 11 3 10 9 9 0 1 5 7 13 3 16 8 16 12 4 5 6 3 13 5 4 14 3 9 1 16 17 10 9 4 5 16 14 8 15 0 1 5 2 10 12 14 8 7 1 6 10 8 14 5 4 14 7 12 9 13 5 11 10 0 15 6 17 5 4 9 14 </values>
0.01/0.12	v </instantiation>
0.01/0.12	c Solving # Nodes: 605
0.01/0.12	c Global Time: 0.032024 s

Verifier Data 

OK

Watcher Data 

runsolver version 3.4.0 (svn: 3012) Copyright (C) 2010-2013 Olivier ROUSSEL

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.

NUMA information:
  number of nodes: 2
  memory of node 0: 16374 MiB (15045 MiB free)
  memory of node 1: 16384 MiB (14361 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4265222-1502782308/watcher-4265222-1502782308 -o /tmp/evaluation-result-4265222-1502782308/solver-4265222-1502782308 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node127-1502653304-21654 --watchdog 2580 BTD 2520 HOME/instance-4265222-1502782308.xml 

running on 4 cores: 0,2,4,6

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
Linux 3.10.0-514.16.1.el7.x86_64
Starting watchdog thread
solver pid=26457, runsolver pid=26454
Current StackSize limit: 8192 KiB


[startup+0.100171 s]*
/proc/loadavg: 1.92 1.98 2.02 3/181 26458
/proc/meminfo: memFree=30111736/32770624 swapFree=67108860/67108860
[pid=26457] ppid=26454 vsize=31024 memory=2120 CPUtime=0.01 cores=0,2,4,6
/proc/26457/stat : 26457 (BTD) R 26454 26457 17093 0 -1 4202496 689 0 0 0 1 0 0 0 20 0 1 0 80424088 31768576 530 18446744073709551615 4194304 35031035 140733071859520 140733071859520 7760122 0 0 1 0 0 0 0 17 4 0 0 9 0 0 37130264 37226188 44130304 140733071868383 140733071868459 140733071868459 140733071871953 0
/proc/26457/statm: 7756 530 412 7529 0 203 0
Current children cumulated CPU time: 0.01 s
Current children cumulated vsize: 31024 KiB
Current children cumulated memory: 2120 KiB

[startup+0.123491 s]
# the end of solver process 26457 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.030963 s, system=0.001997 s

Solver just ended.
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.100171 s]*
/proc/loadavg: 1.92 1.98 2.02 3/181 26458
/proc/meminfo: memFree=30111736/32770624 swapFree=67108860/67108860
[pid=26457] ppid=26454 vsize=31024 memory=2120 CPUtime=0.01 cores=0,2,4,6
/proc/26457/stat : 26457 (BTD) R 26454 26457 17093 0 -1 4202496 689 0 0 0 1 0 0 0 20 0 1 0 80424088 31768576 530 18446744073709551615 4194304 35031035 140733071859520 140733071859520 7760122 0 0 1 0 0 0 0 17 4 0 0 9 0 0 37130264 37226188 44130304 140733071868383 140733071868459 140733071868459 140733071871953 0
/proc/26457/statm: 7756 530 412 7529 0 203 0
Current children cumulated CPU time: 0.01 s
Current children cumulated vsize: 31024 KiB
Current children cumulated memory: 2120 KiB

Child status: 0
Real time (s): 0.123531
CPU time (s): 0.03296
CPU user time (s): 0.030963
CPU system time (s): 0.001997
CPU usage (%): 26.6816
Max. virtual memory (cumulated for all children) (KiB): 31024
Max. memory (cumulated for all children) (KiB): 2120

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.030963
system time used= 0.001997
maximum resident set size= 2164
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 708
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= 2
involuntary context switches= 1


# summary of solver processes directly reported to runsolver:
#   pid: 26457
#   total CPU time (s): 0.03296
#   total CPU user time (s): 0.030963
#   total CPU system time (s): 0.001997

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.008553 second user time and 0.021384 second system time

The end

Launcher Data 

Begin job on node127 at 2017-08-15 09:17:39
IDJOB=4265222
IDBENCH=139015
IDSOLVER=2654
FILE ID=node127/4265222-1502782308
RUNJOBID= node127-1502653304-21654
PBS_JOBID= 
Free space on /tmp= 61992 MiB

SOLVER NAME= BTD 2017-08-10
BENCH NAME= XCSP17/LatinSquare/LatinSquare-xcsp2-bqwh18-141/bqwh-18-141-31_X2.xml
COMMAND LINE= BTD TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4265222-1502782308/watcher-4265222-1502782308 -o /tmp/evaluation-result-4265222-1502782308/solver-4265222-1502782308 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node127-1502653304-21654 --watchdog 2580  BTD 2520 HOME/instance-4265222-1502782308.xml

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

MD5SUM BENCH= abc615a3402994e7b41e934fabdebd2e
RANDOM SEED=739721158

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:        30112372 kB
MemAvailable:   30816372 kB
Buffers:          246688 kB
Cached:           744848 kB
SwapCached:            0 kB
Active:          1919500 kB
Inactive:         292712 kB
Active(anon):    1170428 kB
Inactive(anon):    83808 kB
Active(file):     749072 kB
Inactive(file):   208904 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:             38936 kB
Writeback:             0 kB
AnonPages:       1220804 kB
Mapped:            52968 kB
Shmem:             33444 kB
Slab:             149664 kB
SReclaimable:     123720 kB
SUnreclaim:        25944 kB
KernelStack:        3216 kB
PageTables:         7192 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:    1508936 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:   1169408 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= 61956 MiB
End job on node127 at 2017-08-15 09:17:39