Trace number 4265388

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 2017-08-10UNSAT 1.60057 1.68695

General information on the benchmark

NameQueensKnights/QueensKnights-m1-s1/
QueensKnights-020-05-add.xml
MD5SUM10744363b85b72525a104030f289733f
Bench CategoryCSP (decision problem)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.60203099
Satisfiable
(Un)Satisfiability was proved
Number of variables25
Number of constraints200
Number of domains2
Minimum domain size20
Maximum domain size400
Distribution of domain sizes[{"size":20,"count":20},{"size":400,"count":5}]
Minimum variable degree4
Maximum variable degree19
Distribution of variable degrees[{"degree":4,"count":5},{"degree":19,"count":20}]
Minimum constraint arity2
Maximum constraint arity2
Distribution of constraint arities[{"arity":2,"count":200}]
Number of extensional constraints0
Number of intensional constraints200
Distribution of constraint types[{"type":"intension","count":200}]
Optimization problemNO
Type of objective

Solver Data 

0.02/0.20	c Version: 2017-08-10
1.51/1.68	s UNSATISFIABLE
1.51/1.68	c Solving # Nodes: 597
1.51/1.68	c Global Time: 1.59934 s

Verifier Data


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 (15109 MiB free)
  memory of node 1: 16384 MiB (15534 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4265388-1502679484/watcher-4265388-1502679484 -o /tmp/evaluation-result-4265388-1502679484/solver-4265388-1502679484 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node127-1502653304-21655 --watchdog 2580 BTD 2520 HOME/instance-4265388-1502679484.xml 

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
Linux 3.10.0-514.16.1.el7.x86_64
Starting watchdog thread
Current StackSize limit: 8192 KiB
solver pid=27558, runsolver pid=27555


[startup+0.100153 s]*
/proc/loadavg: 2.00 2.01 2.05 3/181 27559
/proc/meminfo: memFree=31379328/32770624 swapFree=67108860/67108860
[pid=27558] ppid=27555 vsize=30808 memory=1304 CPUtime=0.02 cores=1,3,5,7
/proc/27558/stat : 27558 (BTD) R 27555 27558 17093 0 -1 4202496 501 0 0 0 2 0 0 0 20 0 1 0 70141748 31547392 326 18446744073709551615 4194304 35031035 140726060882128 140726060882128 7408826 0 0 1 0 0 0 0 17 5 0 0 8 0 0 37130264 37226188 62377984 140726060888543 140726060888619 140726060888619 140726060892113 0
/proc/27558/statm: 7702 326 242 7529 0 149 0
Current children cumulated CPU time: 0.02 s
Current children cumulated vsize: 30808 KiB
Current children cumulated memory: 1304 KiB

[startup+0.208897 s]*
/proc/loadavg: 2.00 2.01 2.05 3/181 27559
/proc/meminfo: memFree=31378760/32770624 swapFree=67108860/67108860
[pid=27558] ppid=27555 vsize=31320 memory=2180 CPUtime=0.12 cores=1,3,5,7
/proc/27558/stat : 27558 (BTD) R 27555 27558 17093 0 -1 4202496 676 0 0 0 12 0 0 0 20 0 1 0 70141748 32071680 545 18446744073709551615 4194304 35031035 140726060882128 140726060880680 7408826 0 0 1 0 0 0 0 17 5 0 0 8 0 0 37130264 37226188 62377984 140726060888543 140726060888619 140726060888619 140726060892113 0
/proc/27558/statm: 7830 545 324 7529 0 277 0
Current children cumulated CPU time: 0.12 s
Current children cumulated vsize: 31320 KiB
Current children cumulated memory: 2180 KiB

[startup+0.308589 s]*
/proc/loadavg: 2.00 2.01 2.05 3/181 27559
/proc/meminfo: memFree=31378680/32770624 swapFree=67108860/67108860
[pid=27558] ppid=27555 vsize=31852 memory=2708 CPUtime=0.22 cores=1,3,5,7
/proc/27558/stat : 27558 (BTD) R 27555 27558 17093 0 -1 4202496 809 0 0 0 22 0 0 0 20 0 1 0 70141748 32616448 677 18446744073709551615 4194304 35031035 140726060882128 140726060880680 4300326 0 0 1 0 0 0 0 17 5 0 0 8 0 0 37130264 37226188 62377984 140726060888543 140726060888619 140726060888619 140726060892113 0
/proc/27558/statm: 7963 677 338 7529 0 410 0
Current children cumulated CPU time: 0.22 s
Current children cumulated vsize: 31852 KiB
Current children cumulated memory: 2708 KiB

[startup+0.700268 s]
/proc/loadavg: 2.00 2.01 2.05 3/181 27559
/proc/meminfo: memFree=31378680/32770624 swapFree=67108860/67108860
[pid=27558] ppid=27555 vsize=31852 memory=2708 CPUtime=0.61 cores=1,3,5,7
/proc/27558/stat : 27558 (BTD) R 27555 27558 17093 0 -1 4202496 816 0 0 0 61 0 0 0 20 0 1 0 70141748 32616448 677 18446744073709551615 4194304 35031035 140726060882128 140726060880680 4296488 0 0 1 0 0 0 0 17 5 0 0 8 0 0 37130264 37226188 62377984 140726060888543 140726060888619 140726060888619 140726060892113 0
/proc/27558/statm: 7963 677 338 7529 0 410 0
Current children cumulated CPU time: 0.61 s
Current children cumulated vsize: 31852 KiB
Current children cumulated memory: 2708 KiB

[startup+1.50027 s]
/proc/loadavg: 2.00 2.01 2.05 3/181 27559
/proc/meminfo: memFree=31378680/32770624 swapFree=67108860/67108860
[pid=27558] ppid=27555 vsize=31852 memory=2708 CPUtime=1.41 cores=1,3,5,7
/proc/27558/stat : 27558 (BTD) R 27555 27558 17093 0 -1 4202496 816 0 0 0 141 0 0 0 20 0 1 0 70141748 32616448 677 18446744073709551615 4194304 35031035 140726060882128 140726060880680 4213184 0 0 1 0 0 0 0 17 5 0 0 8 0 0 37130264 37226188 62377984 140726060888543 140726060888619 140726060888619 140726060892113 0
/proc/27558/statm: 7963 677 338 7529 0 410 0
Current children cumulated CPU time: 1.41 s
Current children cumulated vsize: 31852 KiB
Current children cumulated memory: 2708 KiB

[startup+1.68691 s]
# the end of solver process 27558 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=1.59757 s, system=0.002999 s

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

[startup+1.60028 s]
/proc/loadavg: 2.00 2.01 2.05 3/181 27559
/proc/meminfo: memFree=31378680/32770624 swapFree=67108860/67108860
[pid=27558] ppid=27555 vsize=31852 memory=2708 CPUtime=1.51 cores=1,3,5,7
/proc/27558/stat : 27558 (BTD) R 27555 27558 17093 0 -1 4202496 816 0 0 0 151 0 0 0 20 0 1 0 70141748 32616448 677 18446744073709551615 4194304 35031035 140726060882128 140726060880680 7760122 0 0 1 0 0 0 0 17 5 0 0 8 0 0 37130264 37226188 62377984 140726060888543 140726060888619 140726060888619 140726060892113 0
/proc/27558/statm: 7963 677 338 7529 0 410 0
Current children cumulated CPU time: 1.51 s
Current children cumulated vsize: 31852 KiB
Current children cumulated memory: 2708 KiB

Child status: 0
Real time (s): 1.68695
CPU time (s): 1.60057
CPU user time (s): 1.59757
CPU system time (s): 0.002999
CPU usage (%): 94.8795
Max. virtual memory (cumulated for all children) (KiB): 31852
Max. memory (cumulated for all children) (KiB): 2708

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.59757
system time used= 0.002999
maximum resident set size= 2804
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 826
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= 2


# summary of solver processes directly reported to runsolver:
#   pid: 27558
#   total CPU time (s): 1.60057
#   total CPU user time (s): 1.59757
#   total CPU system time (s): 0.002999

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.031712 second user time and 0.040631 second system time

The end

Launcher Data 

Begin job on node127 at 2017-08-14 04:43:56
IDJOB=4265388
IDBENCH=120887
IDSOLVER=2654
FILE ID=node127/4265388-1502679484
RUNJOBID= node127-1502653304-21655
PBS_JOBID= 
Free space on /tmp= 61992 MiB

SOLVER NAME= BTD 2017-08-10
BENCH NAME= XCSP17/QueensKnights/QueensKnights-m1-s1/QueensKnights-020-05-add.xml
COMMAND LINE= BTD TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4265388-1502679484/watcher-4265388-1502679484 -o /tmp/evaluation-result-4265388-1502679484/solver-4265388-1502679484 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node127-1502653304-21655 --watchdog 2580  BTD 2520 HOME/instance-4265388-1502679484.xml

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

MD5SUM BENCH= 10744363b85b72525a104030f289733f
RANDOM SEED=782819225

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:        31379328 kB
MemAvailable:   31983688 kB
Buffers:          222768 kB
Cached:           671336 kB
SwapCached:            0 kB
Active:           694220 kB
Inactive:         255904 kB
Active(anon):       5892 kB
Inactive(anon):    83832 kB
Active(file):     688328 kB
Inactive(file):   172072 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:             38428 kB
Writeback:            32 kB
AnonPages:         55988 kB
Mapped:            49448 kB
Shmem:             33444 kB
Slab:             145584 kB
SReclaimable:     119588 kB
SUnreclaim:        25996 kB
KernelStack:        3216 kB
PageTables:         4840 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     332924 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:      8192 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 2017-08-14 04:43:58