Trace number 4260929

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 NameAnswerobjective functionCPU timeWall clock time
Mistral-2.0 2017-07-28OPT17 0.038298 0.13126799

General information on the benchmark

NameGolombRuler/GolombRuler-a3-s1/
GolombRuler-06-a3.xml
MD5SUMb0c97e0505a0bc7a16ba291a1ac79ec8
Bench CategoryCOP (optimization problem)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark17
Best CPU time to get the best result obtained on this benchmark0.038298
Satisfiable
(Un)Satisfiability was proved
Number of variables42
Number of constraints18
Number of domains2
Minimum domain size500
Maximum domain size501
Distribution of domain sizes[{"size":500,"count":15},{"size":501,"count":6}]
Minimum variable degree0
Maximum variable degree7
Distribution of variable degrees[{"degree":0,"count":21},{"degree":2,"count":15},{"degree":6,"count":4},{"degree":7,"count":2}]
Minimum constraint arity1
Maximum constraint arity15
Distribution of constraint arities[{"arity":1,"count":1},{"arity":3,"count":15},{"arity":6,"count":1},{"arity":15,"count":1}]
Number of extensional constraints0
Number of intensional constraints16
Distribution of constraint types[{"type":"intension","count":16},{"type":"allDifferent","count":1},{"type":"ordered","count":1}]
Optimization problemYES
Type of objectivemin VAR

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.00/0.09	c 280717
0.01/0.12	o 25
0.01/0.12	o 19
0.01/0.13	o 17
0.01/0.13	s OPTIMUM FOUND
0.01/0.13	v <instantiation type="optimum" cost="17">
0.01/0.13	v   <list> x[0] x[1] x[2] x[3] x[4] x[5] y[0][0] y[0][1] y[0][2] y[0][3] y[0][4] y[0][5] y[1][0] y[1][1] y[1][2] y[1][3] y[1][4] y[1][5] y[2][0] y[2][1] y[2][2] y[2][3] y[2][4] y[2][5] y[3][0] y[3][1] y[3][2] y[3][3] y[3][4] y[3][5] y[4][0] y[4][1] y[4][2] y[4][3] y[4][4] y[4][5] y[5][0] y[5][1] y[5][2] y[5][3] y[5][4] y[5][5] </list>
0.01/0.13	v   <values> 0 1 4 10 12 17 * 1 4 10 12 17 * * 3 9 11 16 * * * 6 8 13 * * * * 2 7 * * * * * 5 * * * * * * </values>
0.01/0.13	v </instantiation>

Verifier Data 

OK	17

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-4260929-1502362399/watcher-4260929-1502362399 -o /tmp/evaluation-result-4260929-1502362399/solver-4260929-1502362399 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node127-1502331240-8162 --watchdog 2580 MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed 1326325907 HOME/instance-4260929-1502362399.xml 

pid=12779
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: 2.08 2.03 2.05 3/180 12782
/proc/meminfo: memFree=31278516/32770624 swapFree=0/525204
[pid=12782] ppid=12779 vsize=23672 CPUtime=0 cores=1,3,5,7
/proc/12782/stat : 12782 (runsolver) D 12779 12782 16590 0 -1 4202560 108 0 0 0 0 0 0 0 20 0 1 0 38433431 24240128 107 18446744073709551615 4194304 4338465 140732417455216 140732417452856 139675004891863 0 0 1 24578 18446744071580418449 0 0 17 5 0 0 0 0 0 6438912 6441760 28569600 140732417462412 140732417462858 140732417462858 140732417466314 0
/proc/12782/statm: 5918 107 54 36 0 2156 0

[startup+0.106829 s]
/proc/loadavg: 2.08 2.03 2.05 3/180 12782
/proc/meminfo: memFree=31278516/32770624 swapFree=0/525204
[pid=12782] ppid=12779 vsize=28664 CPUtime=0.01 cores=1,3,5,7
/proc/12782/stat : 12782 (MistralXCSP) R 12779 12782 16590 0 -1 4202496 1039 0 0 0 1 0 0 0 20 0 1 0 38433431 29351936 868 18446744073709551615 4194304 7396336 140728403410400 140728403400176 6072517 0 0 1 0 0 0 0 17 7 0 0 9 0 0 9496464 9501696 36929536 140728403411379 140728403411529 140728403411529 140728403414985 0
/proc/12782/statm: 7166 868 701 782 0 182 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 28664

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 12782 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.106829 s]
/proc/loadavg: 2.08 2.03 2.05 3/180 12782
/proc/meminfo: memFree=31278516/32770624 swapFree=0/525204
[pid=12782] ppid=12779 vsize=28664 CPUtime=0.01 cores=1,3,5,7
/proc/12782/stat : 12782 (MistralXCSP) R 12779 12782 16590 0 -1 4202496 1039 0 0 0 1 0 0 0 20 0 1 0 38433431 29351936 868 18446744073709551615 4194304 7396336 140728403410400 140728403400176 6072517 0 0 1 0 0 0 0 17 7 0 0 9 0 0 9496464 9501696 36929536 140728403411379 140728403411529 140728403411529 140728403414985 0
/proc/12782/statm: 7166 868 701 782 0 182 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 28664

Child status: 0
Real time (s): 0.131268
CPU time (s): 0.038298
CPU user time (s): 0.036144
CPU system time (s): 0.002154
CPU usage (%): 29.1754
Max. virtual memory (cumulated for all children) (KiB): 28664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.036144
system time used= 0.002154
maximum resident set size= 3800
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1143
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= 2

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.004512 second user time and 0.004512 second system time

The end

Launcher Data 

Begin job on node127 at 2017-08-10 12:39:13
IDJOB=4260929
IDBENCH=126217
IDSOLVER=2649
FILE ID=node127/4260929-1502362399
RUNJOBID= node127-1502331240-8162
PBS_JOBID= 
Free space on /tmp= 62024 MiB

SOLVER NAME= Mistral-2.0 2017-07-28
BENCH NAME= XCSP17/GolombRuler/GolombRuler-a3-s1/GolombRuler-06-a3.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-4260929-1502362399/watcher-4260929-1502362399 -o /tmp/evaluation-result-4260929-1502362399/solver-4260929-1502362399 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node127-1502331240-8162 --watchdog 2580  MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed 1326325907 HOME/instance-4260929-1502362399.xml

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

MD5SUM BENCH= b0c97e0505a0bc7a16ba291a1ac79ec8
RANDOM SEED=1326325907

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:        31278780 kB
MemAvailable:   31978456 kB
Buffers:          227940 kB
Cached:           763032 kB
SwapCached:            0 kB
Active:           523168 kB
Inactive:         550112 kB
Active(anon):      82520 kB
Inactive(anon):    24908 kB
Active(file):     440648 kB
Inactive(file):   525204 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:              5904 kB
Writeback:             0 kB
AnonPages:         81736 kB
Mapped:            40692 kB
Shmem:             25252 kB
Slab:             124164 kB
SReclaimable:      99320 kB
SUnreclaim:        24844 kB
KernelStack:        3232 kB
PageTables:         4892 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     342264 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:     28672 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= 62020 MiB
End job on node127 at 2017-08-10 12:39:13