Trace number 4089241

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
NaPS 1.02UNSAT 0.342947 0.346011

General information on the benchmark

Namenormalized-PB16/DEC-SMALLINT-LIN/pb16-16-elffers/
vertexcover-instances/normalized-vertexcover-grid8x25-hard.opb
MD5SUM01dee43020e91f7a9fa2abba13b0d901
Bench CategoryDEC-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.05499
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables200
Total number of constraints401
Number of constraints which are clauses400
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint200
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 103
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 303
Number of bits of the biggest sum of numbers9
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c NaPS 1.02b.
0.29/0.34	s UNSATISFIABLE
0.29/0.34	c _____________________________________________________________________________
0.29/0.34	c 
0.29/0.34	c std/band forms        : 1,0
0.29/0.34	c 2cl/3cl ITE-codings   : 9888,0
0.29/0.34	c BDD/srt/adr Max costs : 10087,0,0
0.29/0.34	c BDDraw/bin/mul/srt/adr: 1,0,0,0,0
0.29/0.34	c BDD nodes             : 10088
0.29/0.34	c Es1/CC detections     : 0,0
0.29/0.34	c SAT/UNSAT calls       : 0,1
0.29/0.34	c restarts              : 50
0.29/0.34	c conflicts             : 7242           (21493 /sec)
0.29/0.34	c decisions             : 19053          (56546 /sec)
0.29/0.34	c propagations          : 1640234        (4867914 /sec)
0.29/0.34	c inspects              : 0              (0 /sec)
0.29/0.34	c CPU time (solving tm) : 0.3369 s        (0.227 s)
0.29/0.34	c Time for Opt-base     : 0 s
0.29/0.34	c _____________________________________________________________________________

Verifier Data 

ERROR: no interpretation found !

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-4089241-1466010355/watcher-4089241-1466010355 -o /tmp/evaluation-result-4089241-1466010355/solver-4089241-1466010355 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node116-1466008058-5767 --watchdog 1960 naps-1.02 HOME/instance-4089241-1466010355.opb 

pid=10085
running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1900 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: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.04 2.17 2.25 3/171 10088
/proc/meminfo: memFree=30581796/32872528 swapFree=1430608/1543028
[pid=10088] ppid=10085 vsize=6416 CPUtime=0 cores=1,3,5,7
/proc/10088/stat : 10088 (naps-1.02) R 10085 10088 5750 0 -1 4202496 294 0 0 0 0 0 0 0 20 0 1 0 3084194 6569984 169 33554432000 4194304 5796924 140735104794992 140733753366024 5095032 0 0 4096 17954 0 0 0 17 3 0 0 0 0 0
/proc/10088/statm: 1604 169 127 392 0 1203 0

[startup+0.10012 s]
/proc/loadavg: 2.04 2.17 2.25 3/171 10088
/proc/meminfo: memFree=30581796/32872528 swapFree=1430608/1543028
[pid=10088] ppid=10085 vsize=12296 CPUtime=0.09 cores=1,3,5,7
/proc/10088/stat : 10088 (naps-1.02) R 10085 10088 5750 0 -1 4202496 1802 0 0 0 9 0 0 0 20 0 1 0 3084194 12591104 1677 33554432000 4194304 5796924 140735104794992 140733753366024 5095032 0 0 4096 17954 0 0 0 17 3 0 0 0 0 0
/proc/10088/statm: 3074 1677 139 392 0 2673 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12296

[startup+0.200272 s]
/proc/loadavg: 2.04 2.17 2.25 3/171 10088
/proc/meminfo: memFree=30581796/32872528 swapFree=1430608/1543028
[pid=10088] ppid=10085 vsize=10924 CPUtime=0.19 cores=1,3,5,7
/proc/10088/stat : 10088 (naps-1.02) R 10085 10088 5750 0 -1 4202496 2863 0 0 0 19 0 0 0 20 0 1 0 3084194 11186176 2385 33554432000 4194304 5796924 140735104794992 140733753366024 4606293 0 0 4096 17954 0 0 0 17 3 0 0 0 0 0
/proc/10088/statm: 2731 2385 163 392 0 2330 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 10924

[startup+0.30026 s]
/proc/loadavg: 2.04 2.17 2.25 3/171 10088
/proc/meminfo: memFree=30581796/32872528 swapFree=1430608/1543028
[pid=10088] ppid=10085 vsize=11312 CPUtime=0.29 cores=1,3,5,7
/proc/10088/stat : 10088 (naps-1.02) R 10085 10088 5750 0 -1 4202496 2917 0 0 0 29 0 0 0 20 0 1 0 3084194 11583488 2434 33554432000 4194304 5796924 140735104794992 140733753366024 4606507 0 0 4096 17954 0 0 0 17 3 0 0 0 0 0
/proc/10088/statm: 2828 2434 164 392 0 2427 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11312

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 10088 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.30026 s]
/proc/loadavg: 2.04 2.17 2.25 3/171 10088
/proc/meminfo: memFree=30581796/32872528 swapFree=1430608/1543028
[pid=10088] ppid=10085 vsize=11312 CPUtime=0.29 cores=1,3,5,7
/proc/10088/stat : 10088 (naps-1.02) R 10085 10088 5750 0 -1 4202496 2917 0 0 0 29 0 0 0 20 0 1 0 3084194 11583488 2434 33554432000 4194304 5796924 140735104794992 140733753366024 4606507 0 0 4096 17954 0 0 0 17 3 0 0 0 0 0
/proc/10088/statm: 2828 2434 164 392 0 2427 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11312

Child status: 20
Real time (s): 0.346011
CPU time (s): 0.342947
CPU user time (s): 0.337948
CPU system time (s): 0.004999
CPU usage (%): 99.1144
Max. virtual memory (cumulated for all children) (KiB): 12296

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.337948
system time used= 0.004999
maximum resident set size= 10388
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2957
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= 3
involuntary context switches= 2

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node116 at 2016-06-15 19:05:55
IDJOB=4089241
IDBENCH=107378
IDSOLVER=2544
FILE ID=node116/4089241-1466010355
RUNJOBID= node116-1466008058-5767
PBS_JOBID= 19902807
Free space on /tmp= 71644 MiB

SOLVER NAME= NaPS 1.02
BENCH NAME= PB16/normalized-PB16/DEC-SMALLINT-LIN/pb16-16-elffers/vertexcover-instances/normalized-vertexcover-grid8x25-hard.opb
COMMAND LINE= naps-1.02 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4089241-1466010355/watcher-4089241-1466010355 -o /tmp/evaluation-result-4089241-1466010355/solver-4089241-1466010355 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node116-1466008058-5767 --watchdog 1960  naps-1.02 HOME/instance-4089241-1466010355.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 01dee43020e91f7a9fa2abba13b0d901
RANDOM SEED=1280929869

node116.alineos.net Linux 2.6.32-71.29.1.el6.x86_64 #1 SMP Mon Jun 27 19:49:27 BST 2011

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.781
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 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 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 tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.56
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
cpu MHz		: 2666.781
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 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 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 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
cpu MHz		: 2666.781
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 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 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 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	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.781
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 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 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 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
cpu MHz		: 2666.781
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 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 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 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	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.781
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 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 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 tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.54
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
cpu MHz		: 2666.781
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 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 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 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	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.781
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 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 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 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:       32872528 kB
MemFree:        30581960 kB
Buffers:            6580 kB
Cached:            34980 kB
SwapCached:         3108 kB
Active:            20648 kB
Inactive:          25452 kB
Active(anon):       3112 kB
Inactive(anon):     3412 kB
Active(file):      17536 kB
Inactive(file):    22040 kB
Unevictable:     1543028 kB
Mlocked:         1430608 kB
SwapTotal:      67108856 kB
SwapFree:       67099392 kB
Dirty:              5004 kB
Writeback:             0 kB
AnonPages:       1545324 kB
Mapped:             7388 kB
Shmem:                 0 kB
Slab:             567988 kB
SReclaimable:       9864 kB
SUnreclaim:       558124 kB
KernelStack:        1456 kB
PageTables:         6856 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545120 kB
Committed_AS:    1638260 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346412 kB
VmallocChunk:   34341988032 kB
HardwareCorrupted:     0 kB
AnonHugePages:    112640 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7552 kB
DirectMap2M:    33538048 kB

Free space on /tmp at the end= 71640 MiB
End job on node116 at 2016-06-15 19:05:55