Trace number 4258441

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 1.1OPT1 0.10949 0.21414299

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 

0.09/0.21	c best=?? lower=0 upper=23 
0.09/0.21	c
0.09/0.21	c This is cosoco 1.1 --  
0.09/0.21	c
0.09/0.21	c command line: HOME/cosoco -lc -model -restarts HOME/instance-4258441-1501996211.xml 
0.09/0.21	c enable optimization
0.09/0.21	c ========================================[ Problem Statistics ]===========================================
0.09/0.21	c |                                                                                                       
0.09/0.21	c |  Parse time        :         0.10 s 
0.09/0.21	c |
0.09/0.21	c |               Variables: 24
0.09/0.21	c |            Domain Sizes: 24..24
0.09/0.21	c |
0.09/0.21	c |             Constraints: 99
0.09/0.21	c |                   Arity: 4..24
0.09/0.21	c | 
0.09/0.21	c |                   Types: 
0.09/0.21	c |                          Intension: 90
0.09/0.21	c |                          Lex: 8
0.09/0.21	c |                          Max constant: 1
0.09/0.21	c |                          
0.09/0.21	c =========================================================================================================
0.09/0.21	o 3
0.09/0.21	c    1 calls to solver: best=3 lower=0 upper=2 
0.09/0.21	o 2
0.09/0.21	o 1
0.09/0.21	c    3 calls to solver: best=1 lower=0 upper=0 
0.09/0.21	c
0.09/0.21	c Optimum found         : 1
0.09/0.21	c
0.09/0.21	
0.09/0.21	v <instantiation type='solution' cost='1'>
0.09/0.21	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>
0.09/0.21	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>
0.09/0.21	v </instantiation>
0.09/0.21	
0.09/0.21	c call to solver        : 4
0.09/0.21	c
0.09/0.21	c restarts              : 0           
0.09/0.21	c conflicts             : 12           (115 /sec)
0.09/0.21	c decisions             : 84           (805 /sec)
0.09/0.21	c propagations          : 1119        (10727 /sec)
0.09/0.21	c root propagations     : 935         
0.09/0.21	c filter calls          : 3071           (29439 /sec)
0.09/0.21	c useless filter calls  : 2956           (96 %)
0.09/0.21	c Memory used           : 26.85 MB
0.09/0.21	c CPU time              : 0.104283 s
0.09/0.21	
0.09/0.21	s OPTIMUM FOUND

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-4258441-1501996211/watcher-4258441-1501996211 -o /tmp/evaluation-result-4258441-1501996211/solver-4258441-1501996211 -C 264 -W 240 -M 15500 --bin-var /tmp/runsolver-exch-node132-1501994416-28398 --watchdog 300 HOME/cosoco -lc -model -restarts HOME/instance-4258441-1501996211.xml 

pid=30425
running on 4 cores: 0,2,4,6

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: 2.00 1.97 1.80 3/185 30428
/proc/meminfo: memFree=18214112/32770624 swapFree=0/331900
[pid=30428] ppid=30425 vsize=23672 CPUtime=0 cores=0,2,4,6
/proc/30428/stat : 30428 (runsolver) D 30425 30428 12039 0 -1 4202560 108 0 0 0 0 0 0 0 20 0 1 0 99274310 24240128 106 18446744073709551615 4194304 4338465 140724083382976 140724083380616 140214903689943 0 0 1 24578 18446744071580418449 0 0 17 0 0 0 0 0 0 6438912 6441760 27365376 140724083384484 140724083384908 140724083384908 140724083388362 0
/proc/30428/statm: 5918 106 53 36 0 2156 0

[startup+0.100153 s]
/proc/loadavg: 2.00 1.97 1.80 3/185 30428
/proc/meminfo: memFree=18214112/32770624 swapFree=0/331900
[pid=30428] ppid=30425 vsize=23672 CPUtime=0 cores=0,2,4,6
/proc/30428/stat : 30428 (runsolver) D 30425 30428 12039 0 -1 4202560 108 0 0 0 0 0 0 0 20 0 1 0 99274310 24240128 106 18446744073709551615 4194304 4338465 140724083382976 140724083380616 140214903689943 0 0 1 24578 18446744071580418449 0 0 17 0 0 0 0 0 0 6438912 6441760 27365376 140724083384484 140724083384908 140724083384908 140724083388362 0
/proc/30428/statm: 5918 106 53 36 0 2156 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 23672

[startup+0.200361 s]
/proc/loadavg: 2.00 1.97 1.80 3/185 30428
/proc/meminfo: memFree=18214112/32770624 swapFree=0/331900
[pid=30428] ppid=30425 vsize=27360 CPUtime=0.09 cores=0,2,4,6
/proc/30428/stat : 30428 (cosoco) R 30425 30428 12039 0 -1 4202496 1112 0 0 0 9 0 0 0 20 0 1 0 99274310 28016640 949 18446744073709551615 4194304 5972556 140732172122160 140732172118808 140437112843237 0 0 1 0 0 0 0 17 4 0 0 10 0 0 8070896 8075904 26914816 140732172124622 140732172124752 140732172124752 140732172128206 0
/proc/30428/statm: 6840 949 785 435 0 203 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 27360

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 30428 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.214143
CPU time (s): 0.10949
CPU user time (s): 0.104496
CPU system time (s): 0.004994
CPU usage (%): 51.1294
Max. virtual memory (cumulated for all children) (KiB): 27360

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.104496
system time used= 0.004994
maximum resident set size= 4260
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1219
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= 10
involuntary context switches= 1

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.004348 second user time and 0.005435 second system time

The end

Launcher Data 

Begin job on node132 at 2017-08-06 06:55:50
IDJOB=4258441
IDBENCH=139741
IDSOLVER=2644
FILE ID=node132/4258441-1501996211
RUNJOBID= node132-1501994416-28398
PBS_JOBID= 
Free space on /tmp= 62008 MiB

SOLVER NAME= cosoco 1.1
BENCH NAME= XCSP17/ChessboardColoration/ChessboardColoration-int-s2/ChessboardColoration-int-04-06.xml
COMMAND LINE= DIR/cosoco -lc -model -restarts BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4258441-1501996211/watcher-4258441-1501996211 -o /tmp/evaluation-result-4258441-1501996211/solver-4258441-1501996211 -C 264 -W 240 -M 15500 --bin-var /tmp/runsolver-exch-node132-1501994416-28398 --watchdog 300  HOME/cosoco -lc -model -restarts HOME/instance-4258441-1501996211.xml

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

MD5SUM BENCH= bc597584f482d34acd2131afdcab0789
RANDOM SEED=83217242

node132.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	: 5333.74
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	: 5333.74
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	: 5333.74
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	: 5333.74
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:        18215616 kB
MemAvailable:   18647740 kB
Buffers:          194880 kB
Cached:           536940 kB
SwapCached:            0 kB
Active:         13741452 kB
Inactive:         364528 kB
Active(anon):   13374860 kB
Inactive(anon):    32628 kB
Active(file):     366592 kB
Inactive(file):   331900 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:              2376 kB
Writeback:             4 kB
AnonPages:      13373204 kB
Mapped:            48320 kB
Shmem:             33468 kB
Slab:             125864 kB
SReclaimable:      98936 kB
SUnreclaim:        26928 kB
KernelStack:        3296 kB
PageTables:        30924 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:   13644896 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      354332 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:    309248 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      114048 kB
DirectMap2M:    33431552 kB

Free space on /tmp at the end= 62008 MiB
End job on node132 at 2017-08-06 06:55:51