Trace number 4397760

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
cosoco 2.0OPT2 0.250826 0.256695

General information on the benchmark

NameChessboardColoration/ChessboardColoration-m1-s2/
ChessboardColoration-08-10.xml
MD5SUM4ad41382ea3c48fc1b345febd6f905ee
Bench CategoryCOP (optimization problem)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark0.250826
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of constraints1260
Number of domains1
Minimum domain size80
Maximum domain size80
Distribution of domain sizes[{"size":80,"count":80}]
Minimum variable degree64
Maximum variable degree64
Distribution of variable degrees[{"degree":64,"count":80}]
Minimum constraint arity4
Maximum constraint arity4
Distribution of constraint arities[{"arity":4,"count":1260}]
Number of extensional constraints0
Number of intensional constraints0
Distribution of constraint types[{"type":"nValues","count":1260}]
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 

0.00/0.09	c
0.00/0.09	c This is cosoco 2.00 --  
0.00/0.09	c
0.00/0.09	c command line: cosoco -lc -model -restarts -stick HOME/instance-4397760-1568587318.xml 
0.00/0.09	c enable optimization
0.00/0.09	c ========================================[ Problem Statistics ]===========================================
0.00/0.09	c |                                                                                                       
0.00/0.09	c |  Parse time        :         0.09 s 
0.00/0.09	c |
0.00/0.09	c |               Variables: 80
0.00/0.09	c |            Domain Sizes: 80..80
0.00/0.09	c |
0.00/0.09	c |             Constraints: 1261
0.00/0.09	c |                   Arity: 4..80
0.00/0.09	c | 
0.00/0.09	c |                   Types: 
0.00/0.09	c |                          Max constant: 1
0.00/0.09	c |                          Not All Equal: 1260
0.00/0.09	c |                          
0.00/0.09	c |               Objective: Minimize Max constant
0.00/0.09	
0.00/0.09	c =========================================================================================================
0.00/0.09	o 6
0.00/0.09	c    1 calls to solver(id=*d): best=0 lower=6 upper=0 
0.00/0.10	o 3
0.10/0.11	o 2
0.10/0.11	c    3 calls to solver(id=*d): best=0 lower=2 upper=0 
0.20/0.25	s OPTIMUM FOUND
0.20/0.25	c call to solver        : 4
0.20/0.25	c
0.20/0.25	c restarts              : 17          
0.20/0.25	c conflicts             : 3517         (14164 /sec)
0.20/0.25	c decisions             : 25162        (101337 /sec)
0.20/0.25	c propagations          : 112364      (452531 /sec)
0.20/0.25	c root propagations     : 6174        
0.20/0.25	c filter calls          : 3672333        (14789844 /sec)
0.20/0.25	c useless filter calls  : 3612020        (98 %)
0.20/0.25	c Memory used           : 27.71 MB
0.20/0.25	c Best bound time (wc)  : 0.110684 s
0.20/0.25	c CPU time              : 0.248301 s
0.20/0.25	c real time             : 0.25123 s
0.20/0.25	
0.20/0.25	
0.20/0.25	v <instantiation type='solution' cost='2'>
0.20/0.25	v <list>x[0][0] x[0][1] x[0][2] x[0][3] x[0][4] x[0][5] x[0][6] x[0][7] x[0][8] x[0][9] x[1][0] x[1][1] x[1][2] x[1][3] x[1][4] x[1][5] x[1][6] x[1][7] x[1][8] x[1][9] x[2][0] x[2][1] x[2][2] x[2][3] x[2][4] x[2][5] x[2][6] x[2][7] x[2][8] x[2][9] x[3][0] x[3][1] x[3][2] x[3][3] x[3][4] x[3][5] x[3][6] x[3][7] x[3][8] x[3][9] x[4][0] x[4][1] x[4][2] x[4][3] x[4][4] x[4][5] x[4][6] x[4][7] x[4][8] x[4][9] x[5][0] x[5][1] x[5][2] x[5][3] x[5][4] x[5][5] x[5][6] x[5][7] x[5][8] x[5][9] x[6][0] x[6][1] x[6][2] x[6][3] x[6][4] x[6][5] x[6][6] x[6][7] x[6][8] x[6][9] x[7][0] x[7][1] x[7][2] x[7][3] x[7][4] x[7][5] x[7][6] x[7][7] x[7][8] x[7][9] </list>
0.20/0.25	v <values>2 1 0 0 2 1 1 0 2 2 2 0 2 0 1 1 0 2 1 1 1 2 2 2 0 0 0 0 1 2 0 2 1 0 2 0 1 2 0 1 0 1 1 2 1 2 0 2 2 0 1 0 1 2 2 1 2 0 0 0 2 2 1 0 0 2 2 1 1 0 1 1 0 1 2 2 0 1 0 1 </values>
0.20/0.25	v </instantiation>
0.20/0.25

Verifier Data 

OK	2

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 (12464 MiB free)
  memory of node 1: 16384 MiB (12203 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4397760-1568587318/watcher-4397760-1568587318 -o /tmp/evaluation-result-4397760-1568587318/solver-4397760-1568587318 -C 2400 -W 2500 -M 15500 --bin-var /tmp/runsolver-exch-node126-1568572747-19564 --watchdog 2560 cosoco -lc -model -restarts -stick HOME/instance-4397760-1568587318.xml 

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

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2500 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=22108, runsolver pid=22105
Current StackSize limit: 8192 KiB


[startup+0.100279 s]*
/proc/loadavg: 1.92 2.01 2.04 3/200 22109
/proc/meminfo: memFree=25259380/32770624 swapFree=67004768/67108860
[pid=22108] ppid=22105 vsize=28368 memory=4764 CPUtime=0.1 cores=0,2,4,6
/proc/22108/stat : 22108 (cosoco) R 22105 22108 19533 0 -1 4202496 1404 0 0 0 10 0 0 0 20 0 1 0 434999591 29048832 1191 33554432000 4194304 6211092 140724625984784 140724625972664 5097978 0 0 4096 8405026 0 0 0 17 0 0 0 0 0 0 8312316 8317760 11735040 140724625990667 140724625990769 140724625990769 140724625993678 0
/proc/22108/statm: 7092 1191 835 493 0 397 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 28368 KiB
Current children cumulated memory: 4764 KiB

[startup+0.209446 s]*
/proc/loadavg: 1.92 2.01 2.04 3/200 22109
/proc/meminfo: memFree=25259380/32770624 swapFree=67004768/67108860
[pid=22108] ppid=22105 vsize=28368 memory=4764 CPUtime=0.2 cores=0,2,4,6
/proc/22108/stat : 22108 (cosoco) R 22105 22108 19533 0 -1 4202496 1404 0 0 0 20 0 0 0 20 0 1 0 434999591 29048832 1191 33554432000 4194304 6211092 140724625984784 140724625972664 5098117 0 0 4096 8405026 0 0 0 17 0 0 0 0 0 0 8312316 8317760 11735040 140724625990667 140724625990769 140724625990769 140724625993678 0
/proc/22108/statm: 7092 1191 835 493 0 397 0
Current children cumulated CPU time: 0.2 s
Current children cumulated vsize: 28368 KiB
Current children cumulated memory: 4764 KiB

[startup+0.25668 s]
# the end of solver process 22108 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.248664 s, system=0.002162 s

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

Child status: 0
Real time (s): 0.256695
CPU time (s): 0.250826
CPU user time (s): 0.248664
CPU system time (s): 0.002162
CPU usage (%): 97.7136
Max. virtual memory (cumulated for all children) (KiB): 28368
Max. memory (cumulated for all children) (KiB): 4764

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.248664
system time used= 0.002162
maximum resident set size= 5036
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1422
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= 15
involuntary context switches= 3


# summary of solver processes directly reported to runsolver:
#   pid: 22108
#   total CPU time (s): 0.250826
#   total CPU user time (s): 0.248664
#   total CPU system time (s): 0.002162

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.014016 second user time and 0.025523 second system time

The end

Launcher Data 

Begin job on node126 at 2019-09-16 00:41:20
IDJOB=4397760
IDBENCH=135933
IDSOLVER=2850
FILE ID=node126/4397760-1568587318
RUNJOBID= node126-1568572747-19564
PBS_JOBID= 21703324
Free space on /tmp= 55704 MiB

SOLVER NAME= cosoco 2.0
BENCH NAME= XCSP17/ChessboardColoration/ChessboardColoration-m1-s2/ChessboardColoration-08-10.xml
COMMAND LINE= cosoco -lc -model -restarts -stick BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4397760-1568587318/watcher-4397760-1568587318 -o /tmp/evaluation-result-4397760-1568587318/solver-4397760-1568587318 -C 2400 -W 2500 -M 15500 --bin-var /tmp/runsolver-exch-node126-1568572747-19564 --watchdog 2560  cosoco -lc -model -restarts -stick HOME/instance-4397760-1568587318.xml

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 4ad41382ea3c48fc1b345febd6f905ee
RANDOM SEED=2113842222

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	: 5333.45
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	: 5332.56
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	: 5333.45
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	: 5332.56
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	: 5333.45
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	: 5332.56
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	: 5333.45
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	: 5332.56
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32770624 kB
MemFree:        25260156 kB
MemAvailable:   31812748 kB
Buffers:          180496 kB
Cached:          6631204 kB
SwapCached:         2912 kB
Active:          2823852 kB
Inactive:        4037424 kB
Active(anon):      47448 kB
Inactive(anon):    51868 kB
Active(file):    2776404 kB
Inactive(file):  3985556 kB
Unevictable:      108736 kB
Mlocked:          108736 kB
SwapTotal:      67108860 kB
SwapFree:       67004768 kB
Dirty:              2728 kB
Writeback:             0 kB
AnonPages:        156992 kB
Mapped:            49264 kB
Shmem:             41008 kB
Slab:             242900 kB
SReclaimable:     212932 kB
SUnreclaim:        29968 kB
KernelStack:        3504 kB
PageTables:         5664 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     578464 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:    108544 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      130432 kB
DirectMap2M:    33415168 kB

Free space on /tmp at the end= 55700 MiB
End job on node126 at 2019-09-16 00:41:21