Trace number 4258938

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 2017-07-28OPT1 0.215174 0.31588399

General information on the benchmark

NameChessboardColoration/ChessboardColoration-int-s2/
ChessboardColoration-int-04-06.xml
MD5SUMbc597584f482d34acd2131afdcab0789
Bench CategoryCOP (optimization problem)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark1
Best CPU time to get the best result obtained on this benchmark0.109355
Satisfiable
(Un)Satisfiability was proved
Number of variables24
Number of constraints91
Number of domains1
Minimum domain size24
Maximum domain size24
Distribution of domain sizes[{"size":24,"count":24}]
Minimum variable degree17
Maximum variable degree17
Distribution of variable degrees[{"degree":17,"count":24}]
Minimum constraint arity4
Maximum constraint arity24
Distribution of constraint arities[{"arity":4,"count":90},{"arity":24,"count":1}]
Number of extensional constraints0
Number of intensional constraints90
Distribution of constraint types[{"type":"intension","count":90},{"type":"lex","count":1}]
Optimization problemYES
Type of objectivemin MAXIMUM

Quality of the solution as a function of time


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

Solver Data 

0.00/0.10	c 280717
0.19/0.30	o 3
0.19/0.31	o 2
0.19/0.31	o 1
0.19/0.31	s OPTIMUM FOUND
0.19/0.31	v <instantiation type="optimum" cost="1">
0.19/0.31	v   <list> x[0][0] x[0][1] x[0][2] x[0][3] x[0][4] x[0][5] x[1][0] x[1][1] x[1][2] x[1][3] x[1][4] x[1][5] x[2][0] x[2][1] x[2][2] x[2][3] x[2][4] x[2][5] x[3][0] x[3][1] x[3][2] x[3][3] x[3][4] x[3][5] </list>
0.19/0.31	v   <values> 0 0 0 1 1 1 0 1 1 0 0 1 1 0 1 0 1 0 1 1 0 1 0 0 </values>
0.19/0.31	v </instantiation>

Verifier Data 

OK	1

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-4258938-1501998908/watcher-4258938-1501998908 -o /tmp/evaluation-result-4258938-1501998908/solver-4258938-1501998908 -C 264 -W 240 -M 15500 --bin-var /tmp/runsolver-exch-node134-1501995020-19751 --watchdog 300 MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed 1322753638 HOME/instance-4258938-1501998908.xml 

pid=21962
running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 264 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 294 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 240 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: 2.09 2.07 2.00 3/188 21965
/proc/meminfo: memFree=31047644/32770624 swapFree=0/388424
[pid=21965] ppid=21962 vsize=23672 CPUtime=0 cores=1,3,5,7
/proc/21965/stat : 21965 (runsolver) D 21962 21965 15278 0 -1 4202560 108 0 0 0 0 0 0 0 20 0 1 0 47396786 24240128 106 18446744073709551615 4194304 4338465 140726617343504 140726617341144 140398486401751 0 0 1 24578 18446744071580418449 0 0 17 5 0 0 0 0 0 6438912 6441760 31670272 140726617346192 140726617346636 140726617346636 140726617350090 0
/proc/21965/statm: 5918 106 53 36 0 2156 0

[startup+0.100218 s]
/proc/loadavg: 2.09 2.07 2.00 3/188 21965
/proc/meminfo: memFree=31047644/32770624 swapFree=0/388424
[pid=21965] ppid=21962 vsize=3428 CPUtime=0 cores=1,3,5,7
/proc/21965/stat : 21965 (MistralXCSP) R 21962 21965 15278 0 -1 1077936128 155 0 0 0 0 0 0 0 20 0 1 0 47396786 3510272 1 18446744073709551615 4194304 7396336 140723054784624 140723054781912 139956924208839 0 0 1 0 0 0 0 17 7 0 0 9 0 0 9496464 9501696 12124160 140723054789045 140723054789195 140723054789195 140723054792649 0
/proc/21965/statm: 857 1 0 782 0 39 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 3428

[startup+0.201107 s]
/proc/loadavg: 2.09 2.07 2.00 3/188 21965
/proc/meminfo: memFree=31047644/32770624 swapFree=0/388424
[pid=21965] ppid=21962 vsize=29360 CPUtime=0.09 cores=1,3,5,7
/proc/21965/stat : 21965 (MistralXCSP) R 21962 21965 15278 0 -1 4202496 1225 0 0 0 9 0 0 0 20 0 1 0 47396786 30064640 1058 18446744073709551615 4194304 7396336 140723054784624 140723054775096 6180779 0 0 1 0 0 0 0 17 7 0 0 9 0 0 9496464 9501696 12124160 140723054789045 140723054789195 140723054789195 140723054792649 0
/proc/21965/statm: 7340 1058 722 782 0 356 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 29360

[startup+0.301105 s]
/proc/loadavg: 2.09 2.07 2.00 3/188 21965
/proc/meminfo: memFree=31047644/32770624 swapFree=0/388424
[pid=21965] ppid=21962 vsize=30596 CPUtime=0.19 cores=1,3,5,7
/proc/21965/stat : 21965 (MistralXCSP) R 21962 21965 15278 0 -1 4202496 1568 0 0 0 19 0 0 0 20 0 1 0 47396786 31330304 1344 18446744073709551615 4194304 7396336 140723054784624 140723054779976 5610167 0 0 1 16386 0 0 0 17 7 0 0 9 0 0 9496464 9501696 12124160 140723054789045 140723054789195 140723054789195 140723054792649 0
/proc/21965/statm: 7649 1344 731 782 0 665 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 30596

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 21965 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.301105 s]
/proc/loadavg: 2.09 2.07 2.00 3/188 21965
/proc/meminfo: memFree=31047644/32770624 swapFree=0/388424
[pid=21965] ppid=21962 vsize=30596 CPUtime=0.19 cores=1,3,5,7
/proc/21965/stat : 21965 (MistralXCSP) R 21962 21965 15278 0 -1 4202496 1568 0 0 0 19 0 0 0 20 0 1 0 47396786 31330304 1344 18446744073709551615 4194304 7396336 140723054784624 140723054779976 5610167 0 0 1 16386 0 0 0 17 7 0 0 9 0 0 9496464 9501696 12124160 140723054789045 140723054789195 140723054789195 140723054792649 0
/proc/21965/statm: 7649 1344 731 782 0 665 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 30596

Child status: 0
Real time (s): 0.315884
CPU time (s): 0.215174
CPU user time (s): 0.214168
CPU system time (s): 0.001006
CPU usage (%): 68.118
Max. virtual memory (cumulated for all children) (KiB): 30596

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.214168
system time used= 0.001006
maximum resident set size= 5640
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1589
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= 4

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.003637 second user time and 0.006062 second system time

The end

Launcher Data 

Begin job on node134 at 2017-08-06 07:41:09
IDJOB=4258938
IDBENCH=139741
IDSOLVER=2645
FILE ID=node134/4258938-1501998908
RUNJOBID= node134-1501995020-19751
PBS_JOBID= 
Free space on /tmp= 61992 MiB

SOLVER NAME= Mistral-2.0 2017-07-28
BENCH NAME= XCSP17/ChessboardColoration/ChessboardColoration-int-s2/ChessboardColoration-int-04-06.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-4258938-1501998908/watcher-4258938-1501998908 -o /tmp/evaluation-result-4258938-1501998908/solver-4258938-1501998908 -C 264 -W 240 -M 15500 --bin-var /tmp/runsolver-exch-node134-1501995020-19751 --watchdog 300  MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed 1322753638 HOME/instance-4258938-1501998908.xml

TIME LIMIT= 264 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= bc597584f482d34acd2131afdcab0789
RANDOM SEED=1322753638

node134.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	: 5333.43
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	: 5333.43
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	: 5333.43
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	: 5333.43
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:        31047748 kB
MemAvailable:   31511300 kB
Buffers:          164228 kB
Cached:           582832 kB
SwapCached:            0 kB
Active:           899264 kB
Inactive:         403264 kB
Active(anon):     557420 kB
Inactive(anon):    14840 kB
Active(file):     341844 kB
Inactive(file):   388424 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:              5856 kB
Writeback:             4 kB
AnonPages:        554832 kB
Mapped:            40584 kB
Shmem:             17084 kB
Slab:             123856 kB
SReclaimable:      98240 kB
SUnreclaim:        25616 kB
KernelStack:        3344 kB
PageTables:         6396 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     815784 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      354332 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:    110592 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= 61984 MiB
End job on node134 at 2017-08-06 07:41:10