Trace number 4261394

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 NameAnswerCPU timeWall clock time
Mistral-2.0 2017-07-28SAT 0.121062 0.23371001

General information on the benchmark

NameLatinSquare/LatinSquare-xcsp2-bqwh18-141/
bqwh-18-141-83_X2.xml
MD5SUM5f6a68e2f4133a0c729ef851544e7957
Bench CategoryCSP (decision problem)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.053098999
Satisfiable
(Un)Satisfiability was proved
Number of variables141
Number of constraints36
Number of domains135
Minimum domain size1
Maximum domain size6
Distribution of domain sizes[{"size":1,"count":3},{"size":2,"count":17},{"size":3,"count":40},{"size":4,"count":53},{"size":5,"count":25},{"size":6,"count":3}]
Minimum variable degree2
Maximum variable degree2
Distribution of variable degrees[{"degree":2,"count":141}]
Minimum constraint arity7
Maximum constraint arity8
Distribution of constraint arities[{"arity":7,"count":6},{"arity":8,"count":30}]
Number of extensional constraints0
Number of intensional constraints0
Distribution of constraint types[{"type":"allDifferent","count":36}]
Optimization problemNO
Type of objective

Solver Data 

0.00/0.11	c 280717
0.08/0.23	s SATISFIABLE
0.08/0.23	v <instantiation type="solution">
0.08/0.23	v   <list> x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 x16 x17 x18 x19 x20 x21 x22 x23 x24 x25 x26 x27 x28 x29 x30 x31 x32 x33 x34 x35 x36 x37 x38 x39 x40 x41 x42 x43 x44 x45 x46 x47 x48 x49 x50 x51 x52 x53 x54 x55 x56 x57 x58 x59 x60 x61 x62 x63 x64 x65 x66 x67 x68 x69 x70 x71 x72 x73 x74 x75 x76 x77 x78 x79 x80 x81 x82 x83 x84 x85 x86 x87 x88 x89 x90 x91 x92 x93 x94 x95 x96 x97 x98 x99 x100 x101 x102 x103 x104 x105 x106 x107 x108 x109 x110 x111 x112 x113 x114 x115 x116 x117 x118 x119 x120 x121 x122 x123 x124 x125 x126 x127 x128 x129 x130 x131 x132 x133 x134 x135 x136 x137 x138 x139 x140 </list>
0.08/0.23	v   <values> 17 1 14 5 11 12 4 2 8 10 2 9 0 16 17 11 15 10 8 4 17 9 1 0 14 9 2 7 4 8 3 15 13 8 11 1 12 17 5 11 4 7 13 6 12 0 1 16 14 10 0 3 11 7 2 11 1 10 3 4 15 12 16 2 9 5 3 6 0 16 11 8 1 13 17 5 0 15 6 12 2 8 3 6 10 15 6 3 12 15 4 10 7 1 1 4 15 2 16 8 17 3 16 2 4 5 9 6 10 0 5 17 15 6 0 16 7 9 16 9 3 8 4 11 2 17 5 13 7 9 3 1 0 8 6 16 8 17 9 12 11 </values>
0.08/0.23	v </instantiation>

Verifier Data 

OK

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-4261394-1502399260/watcher-4261394-1502399260 -o /tmp/evaluation-result-4261394-1502399260/solver-4261394-1502399260 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node135-1502330739-31366 --watchdog 2580 MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed 470779688 HOME/instance-4261394-1502399260.xml 

pid=11044
running on 4 cores: 1,3,5,7

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
Current StackSize limit: 8192 KiB


[startup+0 s]
/proc/loadavg: 1.92 2.00 2.04 2/185 11047
/proc/meminfo: memFree=31221136/32770624 swapFree=0/456308
[pid=11047] ppid=11044 vsize=23672 CPUtime=0 cores=1,3,5,7
/proc/11047/stat : 11047 (runsolver) D 11044 11047 9153 0 -1 4202560 108 0 0 0 0 0 0 0 20 0 1 0 81837138 24240128 106 18446744073709551615 4194304 4338465 140735310968848 140735310966488 139837255840471 0 0 1 24578 18446744071580418449 0 0 17 7 0 0 0 0 0 6438912 6441760 25755648 140735310971019 140735310971465 140735310971465 140735310974922 0
/proc/11047/statm: 5918 106 53 36 0 2156 0

[startup+0.100152 s]
/proc/loadavg: 1.92 2.00 2.04 2/185 11047
/proc/meminfo: memFree=31221136/32770624 swapFree=0/456308
[pid=11047] ppid=11044 vsize=23672 CPUtime=0 cores=1,3,5,7
/proc/11047/stat : 11047 (runsolver) D 11044 11047 9153 0 -1 4202560 108 0 0 0 0 0 0 0 20 0 1 0 81837138 24240128 106 18446744073709551615 4194304 4338465 140735310968848 140735310966488 139837255840471 0 0 1 24578 18446744071580418449 0 0 17 7 0 0 0 0 0 6438912 6441760 25755648 140735310971019 140735310971465 140735310971465 140735310974922 0
/proc/11047/statm: 5918 106 53 36 0 2156 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 23672

[startup+0.200321 s]
/proc/loadavg: 1.92 2.00 2.04 2/185 11047
/proc/meminfo: memFree=31221136/32770624 swapFree=0/456308
[pid=11047] ppid=11044 vsize=29060 CPUtime=0.08 cores=1,3,5,7
/proc/11047/stat : 11047 (MistralXCSP) R 11044 11047 9153 0 -1 4202496 1121 0 0 0 8 0 0 0 20 0 1 0 81837138 29757440 934 18446744073709551615 4194304 7396336 140732887797824 140732887794824 4543790 0 0 1 16386 0 0 0 17 1 0 0 11 0 0 9496464 9501696 36003840 140732887806387 140732887806536 140732887806536 140732887809993 0
/proc/11047/statm: 7265 934 678 782 0 281 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 29060

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 11047 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.23371
CPU time (s): 0.121062
CPU user time (s): 0.118962
CPU system time (s): 0.0021
CPU usage (%): 51.8001
Max. virtual memory (cumulated for all children) (KiB): 29060

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.118962
system time used= 0.0021
maximum resident set size= 3788
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1139
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

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.00421 second user time and 0.005052 second system time

The end

Launcher Data 

Begin job on node135 at 2017-08-10 22:53:45
IDJOB=4261394
IDBENCH=139047
IDSOLVER=2649
FILE ID=node135/4261394-1502399260
RUNJOBID= node135-1502330739-31366
PBS_JOBID= 
Free space on /tmp= 62024 MiB

SOLVER NAME= Mistral-2.0 2017-07-28
BENCH NAME= XCSP17/LatinSquare/LatinSquare-xcsp2-bqwh18-141/bqwh-18-141-83_X2.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-4261394-1502399260/watcher-4261394-1502399260 -o /tmp/evaluation-result-4261394-1502399260/solver-4261394-1502399260 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node135-1502330739-31366 --watchdog 2580  MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed 470779688 HOME/instance-4261394-1502399260.xml

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

MD5SUM BENCH= 5f6a68e2f4133a0c729ef851544e7957
RANDOM SEED=470779688

node135.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	: 5333.21
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	: 5333.21
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	: 5333.21
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	: 5333.21
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:        31221508 kB
MemAvailable:   31979176 kB
Buffers:          279412 kB
Cached:           770148 kB
SwapCached:            0 kB
Active:           621836 kB
Inactive:         489448 kB
Active(anon):      61696 kB
Inactive(anon):    33140 kB
Active(file):     560140 kB
Inactive(file):   456308 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:              5440 kB
Writeback:             0 kB
AnonPages:        138964 kB
Mapped:            49748 kB
Shmem:             33464 kB
Slab:             141384 kB
SReclaimable:     114108 kB
SUnreclaim:        27276 kB
KernelStack:        3344 kB
PageTables:         4580 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     328588 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      354332 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:     83968 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= 62020 MiB
End job on node135 at 2017-08-10 22:53:45