Trace number 4260648

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 2017-07-25UNSAT 1.60298 1.67337

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 

0.02/0.18	c Version: 2017-07-25
1.52/1.67	s UNSATISFIABLE
1.52/1.67	c Solving # Nodes: 597
1.52/1.67	c Global Time: 1.60176 s

Verifier Data


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-4260648-1502237813/watcher-4260648-1502237813 -o /tmp/evaluation-result-4260648-1502237813/solver-4260648-1502237813 -C 2640 -W 2400 -M 15500 --bin-var /tmp/runsolver-exch-node126-1502234551-16045 --watchdog 2460 BTD 2640 HOME/instance-4260648-1502237813.xml 

pid=16622
running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2640 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2670 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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: 2.05 2.07 1.89 2/176 16625
/proc/meminfo: memFree=31691968/32770624 swapFree=0/107392
[pid=16625] ppid=16622 vsize=23672 CPUtime=0 cores=1,3,5,7
/proc/16625/stat : 16625 (runsolver) D 16622 16625 15981 0 -1 4202560 107 0 0 0 0 0 0 0 20 0 1 0 25977049 24240128 107 18446744073709551615 4194304 4338465 140736984597200 140736984594840 140094241657559 0 0 1 24578 18446744071580418449 0 0 17 1 0 0 0 0 0 6438912 6441760 32354304 140736984600789 140736984601162 140736984601162 140736984604618 0
/proc/16625/statm: 5918 107 54 36 0 2156 0

[startup+0.10015 s]
/proc/loadavg: 2.05 2.07 1.89 2/176 16625
/proc/meminfo: memFree=31691968/32770624 swapFree=0/107392
[pid=16625] ppid=16622 vsize=30808 CPUtime=0.02 cores=1,3,5,7
/proc/16625/stat : 16625 (BTD) R 16622 16625 15981 0 -1 4202496 500 0 0 0 2 0 0 0 20 0 1 0 25977049 31547392 326 18446744073709551615 4194304 35031035 140728648028944 140728648028944 7405873 0 0 1 0 0 0 0 17 3 0 0 7 0 0 37130264 37226188 55107584 140728648036869 140728648036945 140728648036945 140728648040401 0
/proc/16625/statm: 7702 326 242 7529 0 149 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 30808

[startup+0.200238 s]
/proc/loadavg: 2.05 2.07 1.89 2/176 16625
/proc/meminfo: memFree=31691968/32770624 swapFree=0/107392
[pid=16625] ppid=16622 vsize=31320 CPUtime=0.12 cores=1,3,5,7
/proc/16625/stat : 16625 (BTD) R 16622 16625 15981 0 -1 4202496 671 0 0 0 12 0 0 0 20 0 1 0 25977049 32071680 544 18446744073709551615 4194304 35031035 140728648028944 140728648027496 4293248 0 0 1 0 0 0 0 17 3 0 0 7 0 0 37130264 37226188 55107584 140728648036869 140728648036945 140728648036945 140728648040401 0
/proc/16625/statm: 7830 544 323 7529 0 277 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 31320

[startup+0.300243 s]
/proc/loadavg: 2.05 2.07 1.89 2/176 16625
/proc/meminfo: memFree=31691968/32770624 swapFree=0/107392
[pid=16625] ppid=16622 vsize=31852 CPUtime=0.22 cores=1,3,5,7
/proc/16625/stat : 16625 (BTD) R 16622 16625 15981 0 -1 4202496 806 0 0 0 22 0 0 0 20 0 1 0 25977049 32616448 676 18446744073709551615 4194304 35031035 140728648028944 140728648027496 4296400 0 0 1 0 0 0 0 17 3 0 0 7 0 0 37130264 37226188 55107584 140728648036869 140728648036945 140728648036945 140728648040401 0
/proc/16625/statm: 7963 676 337 7529 0 410 0
Current children cumulated CPU time (s) 0.22
Current children cumulated vsize (KiB) 31852

[startup+0.70022 s]
/proc/loadavg: 2.05 2.07 1.89 2/176 16625
/proc/meminfo: memFree=31691968/32770624 swapFree=0/107392
[pid=16625] ppid=16622 vsize=31852 CPUtime=0.62 cores=1,3,5,7
/proc/16625/stat : 16625 (BTD) R 16622 16625 15981 0 -1 4202496 813 0 0 0 62 0 0 0 20 0 1 0 25977049 32616448 676 18446744073709551615 4194304 35031035 140728648028944 140728648027496 4298935 0 0 1 0 0 0 0 17 3 0 0 7 0 0 37130264 37226188 55107584 140728648036869 140728648036945 140728648036945 140728648040401 0
/proc/16625/statm: 7963 676 337 7529 0 410 0
Current children cumulated CPU time (s) 0.62
Current children cumulated vsize (KiB) 31852

[startup+1.50021 s]
/proc/loadavg: 2.05 2.07 1.89 3/183 16641
/proc/meminfo: memFree=31647072/32770624 swapFree=0/107408
[pid=16625] ppid=16622 vsize=31852 CPUtime=1.42 cores=1,3,5,7
/proc/16625/stat : 16625 (BTD) R 16622 16625 15981 0 -1 4202496 813 0 0 0 142 0 0 0 20 0 1 0 25977049 32616448 676 18446744073709551615 4194304 35031035 140728648028944 140728648027496 7760122 0 0 1 0 0 0 0 17 3 0 0 7 0 0 37130264 37226188 55107584 140728648036869 140728648036945 140728648036945 140728648040401 0
/proc/16625/statm: 7963 676 337 7529 0 410 0
Current children cumulated CPU time (s) 1.42
Current children cumulated vsize (KiB) 31852

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 16625 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+1.60025 s]
/proc/loadavg: 2.05 2.07 1.89 3/183 16641
/proc/meminfo: memFree=31647072/32770624 swapFree=0/107408
[pid=16625] ppid=16622 vsize=31852 CPUtime=1.52 cores=1,3,5,7
/proc/16625/stat : 16625 (BTD) R 16622 16625 15981 0 -1 4202496 813 0 0 0 152 0 0 0 20 0 1 0 25977049 32616448 676 18446744073709551615 4194304 35031035 140728648028944 140728648027496 7760122 0 0 1 0 0 0 0 17 3 0 0 7 0 0 37130264 37226188 55107584 140728648036869 140728648036945 140728648036945 140728648040401 0
/proc/16625/statm: 7963 676 337 7529 0 410 0
Current children cumulated CPU time (s) 1.52
Current children cumulated vsize (KiB) 31852

Child status: 0
Real time (s): 1.67337
CPU time (s): 1.60298
CPU user time (s): 1.59998
CPU system time (s): 0.003
CPU usage (%): 95.7933
Max. virtual memory (cumulated for all children) (KiB): 31852

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.59998
system time used= 0.003
maximum resident set size= 2804
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 823
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= 3

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.003353 second user time and 0.012296 second system time

The end

Launcher Data 

Begin job on node126 at 2017-08-09 02:02:55
IDJOB=4260648
IDBENCH=120887
IDSOLVER=2648
FILE ID=node126/4260648-1502237813
RUNJOBID= node126-1502234551-16045
PBS_JOBID= 
Free space on /tmp= 62032 MiB

SOLVER NAME= BTD 2017-07-25
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-4260648-1502237813/watcher-4260648-1502237813 -o /tmp/evaluation-result-4260648-1502237813/solver-4260648-1502237813 -C 2640 -W 2400 -M 15500 --bin-var /tmp/runsolver-exch-node126-1502234551-16045 --watchdog 2460  BTD 2640 HOME/instance-4260648-1502237813.xml

TIME LIMIT= 2640 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 10744363b85b72525a104030f289733f
RANDOM SEED=876663983

node126.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	: 5333.81
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	: 5333.81
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	: 5333.81
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	: 5333.81
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:        31692508 kB
MemAvailable:   31997060 kB
Buffers:          189120 kB
Cached:           382812 kB
SwapCached:          544 kB
Active:           453516 kB
Inactive:         172660 kB
Active(anon):       6268 kB
Inactive(anon):    65268 kB
Active(file):     447248 kB
Inactive(file):   107392 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67105568 kB
Dirty:             38652 kB
Writeback:             4 kB
AnonPages:         53624 kB
Mapped:            34548 kB
Shmem:             17056 kB
Slab:             156720 kB
SReclaimable:     131496 kB
SUnreclaim:        25224 kB
KernelStack:        3184 kB
PageTables:         4708 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     290424 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:     10240 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      101760 kB
DirectMap2M:    33443840 kB

Free space on /tmp at the end= 61956 MiB
End job on node126 at 2017-08-09 02:02:57