Trace number 4390200

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 0.317093 0.317884

General information on the benchmark

NameChessboardColoration/ChessboardColoration-int-s2/
ChessboardColoration-int-05-07.xml
MD5SUM91a6e92a2ae9197e0e5abb82e178125f
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 benchmark0.310586
Satisfiable
(Un)Satisfiability was proved
Number of variables35
Number of constraints211
Number of domains1
Minimum domain size35
Maximum domain size35
Distribution of domain sizes[{"size":35,"count":35}]
Minimum variable degree26
Maximum variable degree26
Distribution of variable degrees[{"degree":26,"count":35}]
Minimum constraint arity4
Maximum constraint arity35
Distribution of constraint arities[{"arity":4,"count":210},{"arity":35,"count":1}]
Number of extensional constraints0
Number of intensional constraints210
Distribution of constraint types[{"type":"intension","count":210},{"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 

0.21/0.26	c
0.21/0.26	c This is cosoco 2.00 --  
0.21/0.26	c
0.21/0.26	c command line: cosoco -lc -model -restarts -stick HOME/instance-4390200-1568355595.xml 
0.21/0.26	c enable optimization
0.21/0.26	c ========================================[ Problem Statistics ]===========================================
0.21/0.26	c |                                                                                                       
0.21/0.26	c |  Parse time        :         0.22 s 
0.21/0.26	c |
0.21/0.26	c |               Variables: 35
0.21/0.26	c |            Domain Sizes: 35..35
0.21/0.26	c |
0.21/0.26	c |             Constraints: 221
0.21/0.26	c |                   Arity: 4..35
0.21/0.26	c | 
0.21/0.26	c |                   Types: 
0.21/0.26	c |                          Intension: 210
0.21/0.26	c |                          Lex: 10
0.21/0.26	c |                          Max constant: 1
0.21/0.26	c |                          
0.21/0.26	c |               Objective: Minimize Max constant
0.21/0.26	
0.21/0.26	c =========================================================================================================
0.21/0.26	o 4
0.21/0.26	c    1 calls to solver(id=*d): best=0 lower=4 upper=0 
0.21/0.27	o 3
0.21/0.29	o 2
0.21/0.29	c    3 calls to solver(id=*d): best=0 lower=2 upper=0 
0.21/0.31	s OPTIMUM FOUND
0.21/0.31	c call to solver        : 4
0.21/0.31	c
0.21/0.31	c restarts              : 0           
0.21/0.31	c conflicts             : 24           (77 /sec)
0.21/0.31	c decisions             : 183          (588 /sec)
0.21/0.31	c propagations          : 2471        (7943 /sec)
0.21/0.31	c root propagations     : 1766        
0.21/0.31	c filter calls          : 12294          (39518 /sec)
0.21/0.31	c useless filter calls  : 11877          (96 %)
0.21/0.31	c Memory used           : 33.33 MB
0.21/0.31	c Best bound time (wc)  : 0.287972 s
0.21/0.31	c CPU time              : 0.311034 s
0.21/0.31	c real time             : 0.313139 s
0.21/0.31	
0.21/0.31	
0.21/0.31	v <instantiation type='solution' cost='2'>
0.21/0.31	v <list>x[0][0] x[0][1] x[0][2] x[0][3] x[0][4] x[0][5] x[0][6] x[1][0] x[1][1] x[1][2] x[1][3] x[1][4] x[1][5] x[1][6] x[2][0] x[2][1] x[2][2] x[2][3] x[2][4] x[2][5] x[2][6] x[3][0] x[3][1] x[3][2] x[3][3] x[3][4] x[3][5] x[3][6] x[4][0] x[4][1] x[4][2] x[4][3] x[4][4] x[4][5] x[4][6] </list>
0.21/0.31	v <values>0 0 1 2 2 2 2 0 1 0 0 1 1 1 1 1 1 0 0 0 0 1 2 0 1 0 1 2 2 2 1 1 0 2 1 </values>
0.21/0.31	v </instantiation>
0.21/0.31

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 (12923 MiB free)
  memory of node 1: 16384 MiB (15734 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4390200-1568355595/watcher-4390200-1568355595 -o /tmp/evaluation-result-4390200-1568355595/solver-4390200-1568355595 -C 2400 -W 2500 -M 15500 --bin-var /tmp/runsolver-exch-node139-1568325638-27861 --watchdog 2560 cosoco -lc -model -restarts -stick HOME/instance-4390200-1568355595.xml 

running on 4 cores: 1,3,5,7

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
Current StackSize limit: 8192 KiB

solver pid=2498, runsolver pid=2495

[startup+0.100155 s]*
/proc/loadavg: 2.73 2.18 2.10 3/198 2499
/proc/meminfo: memFree=29343596/32770624 swapFree=66932240/67108860
[pid=2498] ppid=2495 vsize=30208 memory=6564 CPUtime=0.1 cores=1,3,5,7
/proc/2498/stat : 2498 (cosoco) R 2495 2498 27829 0 -1 4202496 1812 0 0 0 10 0 0 0 20 0 1 0 411827375 30932992 1641 33554432000 4194304 6210612 140729865537584 140729865534120 140399634349029 0 0 4096 8405026 0 0 0 17 1 0 0 0 0 0 8308220 8313664 13266944 140729865544715 140729865544817 140729865544817 140729865547726 0
/proc/2498/statm: 7552 1641 823 493 0 857 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 30208 KiB
Current children cumulated memory: 6564 KiB

[startup+0.209716 s]*
/proc/loadavg: 2.73 2.18 2.10 3/198 2499
/proc/meminfo: memFree=29346872/32770624 swapFree=66932240/67108860
[pid=2498] ppid=2495 vsize=33336 memory=9692 CPUtime=0.21 cores=1,3,5,7
/proc/2498/stat : 2498 (cosoco) R 2495 2498 27829 0 -1 4202496 2615 0 0 0 21 0 0 0 20 0 1 0 411827375 34136064 2423 33554432000 4194304 6210612 140729865537584 140729865534120 140399634349029 0 0 4096 8405026 0 0 0 17 1 0 0 0 0 0 8308220 8313664 13266944 140729865544715 140729865544817 140729865544817 140729865547726 0
/proc/2498/statm: 8334 2423 823 493 0 1639 0
Current children cumulated CPU time: 0.21 s
Current children cumulated vsize: 33336 KiB
Current children cumulated memory: 9692 KiB

[startup+0.31786 s]
# the end of solver process 2498 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.311099 s, system=0.005994 s

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

Child status: 0
Real time (s): 0.317884
CPU time (s): 0.317093
CPU user time (s): 0.311099
CPU system time (s): 0.005994
CPU usage (%): 99.7512
Max. virtual memory (cumulated for all children) (KiB): 33336
Max. memory (cumulated for all children) (KiB): 9692

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.311099
system time used= 0.005994
maximum resident set size= 10764
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2854
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= 1


# summary of solver processes directly reported to runsolver:
#   pid: 2498
#   total CPU time (s): 0.317093
#   total CPU user time (s): 0.311099
#   total CPU system time (s): 0.005994

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.01095 second user time and 0.030772 second system time

The end

Launcher Data 

Begin job on node139 at 2019-09-13 08:21:39
IDJOB=4390200
IDBENCH=139742
IDSOLVER=2831
FILE ID=node139/4390200-1568355595
RUNJOBID= node139-1568325638-27861
PBS_JOBID= 21701151
Free space on /tmp= 55336 MiB

SOLVER NAME= cosoco 2
BENCH NAME= XCSP17/ChessboardColoration/ChessboardColoration-int-s2/ChessboardColoration-int-05-07.xml
COMMAND LINE= cosoco -lc -model -restarts -stick BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4390200-1568355595/watcher-4390200-1568355595 -o /tmp/evaluation-result-4390200-1568355595/solver-4390200-1568355595 -C 2400 -W 2500 -M 15500 --bin-var /tmp/runsolver-exch-node139-1568325638-27861 --watchdog 2560  cosoco -lc -model -restarts -stick HOME/instance-4390200-1568355595.xml

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

MD5SUM BENCH= 91a6e92a2ae9197e0e5abb82e178125f
RANDOM SEED=166060745

node139.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	: 5333.57
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	: 5333.57
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	: 5333.57
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	: 5333.57
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:        29345988 kB
MemAvailable:   31765836 kB
Buffers:           95548 kB
Cached:          2573288 kB
SwapCached:        73384 kB
Active:           357608 kB
Inactive:        2388960 kB
Active(anon):       9872 kB
Inactive(anon):   108784 kB
Active(file):     347736 kB
Inactive(file):  2280176 kB
Unevictable:      110720 kB
Mlocked:          110720 kB
SwapTotal:      67108860 kB
SwapFree:       66932240 kB
Dirty:              3456 kB
Writeback:         57380 kB
AnonPages:        116584 kB
Mapped:            44708 kB
Shmem:             32184 kB
Slab:             272000 kB
SReclaimable:     215544 kB
SUnreclaim:        56456 kB
KernelStack:        3456 kB
PageTables:         5528 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     521828 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:     67584 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      107904 kB
DirectMap2M:    33437696 kB

Free space on /tmp at the end= 55332 MiB
End job on node139 at 2019-09-13 08:21:39