Trace number 4389790

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 2OPT2 0.277635 0.282235

General information on the benchmark

NameChessboardColoration/ChessboardColoration-m1-s1/
ChessboardColoration-09-09.xml
MD5SUM895fdf75fca3d2136489d7dab90e962a
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 benchmark0.277635
Satisfiable
(Un)Satisfiability was proved
Number of variables81
Number of constraints1296
Number of domains1
Minimum domain size81
Maximum domain size81
Distribution of domain sizes[{"size":81,"count":81}]
Minimum variable degree65
Maximum variable degree65
Distribution of variable degrees[{"degree":65,"count":81}]
Minimum constraint arity4
Maximum constraint arity4
Distribution of constraint arities[{"arity":4,"count":1296}]
Number of extensional constraints0
Number of intensional constraints0
Distribution of constraint types[{"type":"nValues","count":1296}]
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
0.00/0.10	c This is cosoco 2.00 --  
0.00/0.10	c
0.00/0.10	c command line: cosoco -lc -model -restarts -stick HOME/instance-4389790-1568356697.xml 
0.00/0.10	c enable optimization
0.00/0.10	c ========================================[ Problem Statistics ]===========================================
0.00/0.10	c |                                                                                                       
0.00/0.10	c |  Parse time        :         0.10 s 
0.00/0.10	c |
0.00/0.10	c |               Variables: 81
0.00/0.10	c |            Domain Sizes: 81..81
0.00/0.10	c |
0.00/0.10	c |             Constraints: 1297
0.00/0.10	c |                   Arity: 4..81
0.00/0.10	c | 
0.00/0.10	c |                   Types: 
0.00/0.10	c |                          Max constant: 1
0.00/0.10	c |                          Not All Equal: 1296
0.00/0.10	c |                          
0.00/0.10	c |               Objective: Minimize Max constant
0.00/0.10	
0.00/0.10	c =========================================================================================================
0.00/0.10	o 7
0.00/0.10	c    1 calls to solver(id=*d): best=0 lower=7 upper=0 
0.00/0.10	o 4
0.00/0.10	o 3
0.00/0.10	c    3 calls to solver(id=*d): best=0 lower=3 upper=0 
0.10/0.12	o 2
0.21/0.28	s OPTIMUM FOUND
0.21/0.28	c call to solver        : 5
0.21/0.28	c
0.21/0.28	c restarts              : 19          
0.21/0.28	c conflicts             : 3907         (14192 /sec)
0.21/0.28	c decisions             : 27652        (100442 /sec)
0.21/0.28	c propagations          : 126366      (459007 /sec)
0.21/0.28	c root propagations     : 6257        
0.21/0.28	c filter calls          : 4184913        (15201117 /sec)
0.21/0.28	c useless filter calls  : 4115165        (98 %)
0.21/0.28	c Memory used           : 27.71 MB
0.21/0.28	c Best bound time (wc)  : 0.123274 s
0.21/0.28	c CPU time              : 0.275258 s
0.21/0.28	c real time             : 0.278371 s
0.21/0.28	
0.21/0.28	
0.21/0.28	v <instantiation type='solution' cost='2'>
0.21/0.28	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[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[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[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[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[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[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[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[8][0] x[8][1] x[8][2] x[8][3] x[8][4] x[8][5] x[8][6] x[8][7] x[8][8] </list>
0.21/0.28	v <values>2 1 0 2 1 2 1 1 0 2 2 1 1 1 0 2 0 0 0 0 0 2 2 1 1 2 1 2 1 0 1 0 0 0 2 1 1 2 2 1 0 2 1 2 0 1 0 2 2 1 1 2 0 2 1 0 1 0 0 2 2 1 1 2 0 2 1 2 1 0 1 0 0 2 1 0 2 1 0 0 2 </values>
0.21/0.28	v </instantiation>
0.21/0.28

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 (15256 MiB free)
  memory of node 1: 16384 MiB (15683 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4389790-1568356697/watcher-4389790-1568356697 -o /tmp/evaluation-result-4389790-1568356697/solver-4389790-1568356697 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node121-1568352647-26640 --watchdog 2580 cosoco -lc -model -restarts -stick HOME/instance-4389790-1568356697.xml 

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

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
solver pid=27673, runsolver pid=27670
Current StackSize limit: 8192 KiB


[startup+0.100831 s]*
/proc/loadavg: 2.00 2.04 2.05 3/199 27674
/proc/meminfo: memFree=31680900/32770624 swapFree=66980360/67108860
[pid=27673] ppid=27670 vsize=28372 memory=4752 CPUtime=0.1 cores=0,2,4,6
/proc/27673/stat : 27673 (cosoco) R 27670 27673 25389 0 -1 4202496 1407 0 0 0 10 0 0 0 20 0 1 0 411932341 29052928 1188 33554432000 4194304 6210612 140730859868096 140730859855976 5097567 0 0 4096 8405026 0 0 0 17 0 0 0 0 0 0 8308220 8313664 27484160 140730859869195 140730859869297 140730859869297 140730859872206 0
/proc/27673/statm: 7093 1188 833 493 0 398 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 28372 KiB
Current children cumulated memory: 4752 KiB

[startup+0.209443 s]*
/proc/loadavg: 2.00 2.04 2.05 3/199 27674
/proc/meminfo: memFree=31680900/32770624 swapFree=66980360/67108860
[pid=27673] ppid=27670 vsize=28372 memory=4752 CPUtime=0.21 cores=0,2,4,6
/proc/27673/stat : 27673 (cosoco) R 27670 27673 25389 0 -1 4202496 1407 0 0 0 21 0 0 0 20 0 1 0 411932341 29052928 1188 33554432000 4194304 6210612 140730859868096 140730859855976 5097571 0 0 4096 8405026 0 0 0 17 0 0 0 0 0 0 8308220 8313664 27484160 140730859869195 140730859869297 140730859869297 140730859872206 0
/proc/27673/statm: 7093 1188 833 493 0 398 0
Current children cumulated CPU time: 0.21 s
Current children cumulated vsize: 28372 KiB
Current children cumulated memory: 4752 KiB

[startup+0.282202 s]
# the end of solver process 27673 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.275633 s, system=0.002002 s

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

Child status: 0
Real time (s): 0.282235
CPU time (s): 0.277635
CPU user time (s): 0.275633
CPU system time (s): 0.002002
CPU usage (%): 98.3701
Max. virtual memory (cumulated for all children) (KiB): 28372
Max. memory (cumulated for all children) (KiB): 4752

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.275633
system time used= 0.002002
maximum resident set size= 5048
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1426
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= 6
involuntary context switches= 2


# summary of solver processes directly reported to runsolver:
#   pid: 27673
#   total CPU time (s): 0.277635
#   total CPU user time (s): 0.275633
#   total CPU system time (s): 0.002002

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.013201 second user time and 0.026402 second system time

The end

Launcher Data 

Begin job on node121 at 2019-09-13 08:37:35
IDJOB=4389790
IDBENCH=135959
IDSOLVER=2829
FILE ID=node121/4389790-1568356697
RUNJOBID= node121-1568352647-26640
PBS_JOBID= 21701172
Free space on /tmp= 61048 MiB

SOLVER NAME= cosoco 2
BENCH NAME= XCSP17/ChessboardColoration/ChessboardColoration-m1-s1/ChessboardColoration-09-09.xml
COMMAND LINE= cosoco -lc -model -restarts -stick BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4389790-1568356697/watcher-4389790-1568356697 -o /tmp/evaluation-result-4389790-1568356697/solver-4389790-1568356697 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node121-1568352647-26640 --watchdog 2580  cosoco -lc -model -restarts -stick HOME/instance-4389790-1568356697.xml

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

MD5SUM BENCH= 895fdf75fca3d2136489d7dab90e962a
RANDOM SEED=928710701

node121.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	: 5333.75
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	: 5333.75
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	: 5333.75
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	: 5333.75
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:        31682688 kB
MemAvailable:   31916904 kB
Buffers:          139216 kB
Cached:           390352 kB
SwapCached:        18932 kB
Active:           259944 kB
Inactive:         292844 kB
Active(anon):       9604 kB
Inactive(anon):    43076 kB
Active(file):     250340 kB
Inactive(file):   249768 kB
Unevictable:      109528 kB
Mlocked:          109528 kB
SwapTotal:      67108860 kB
SwapFree:       66980360 kB
Dirty:              2476 kB
Writeback:             0 kB
AnonPages:        118248 kB
Mapped:            34532 kB
Shmem:             21296 kB
Slab:             128892 kB
SReclaimable:      99884 kB
SUnreclaim:        29008 kB
KernelStack:        3664 kB
PageTables:         5524 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     528708 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:     71680 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      122240 kB
DirectMap2M:    33423360 kB

Free space on /tmp at the end= 61044 MiB
End job on node121 at 2019-09-13 08:37:35