Trace number 4113339

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
minisatp 2012-10-02 git-d91742bUNSAT 0.172972 0.172807

General information on the benchmark

Namenormalized-PB16/DEC-SMALLINT-LIN/pb16-16-elffers/
vertexcover-instances/normalized-vertexcover-grid6x17.opb
MD5SUM30d12a1a3fff9b153f01a9180eb6bd43
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 benchmark0.004999
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables102
Total number of constraints205
Number of constraints which are clauses204
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 constraint102
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 51
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 153
Number of bits of the biggest sum of numbers8
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 Parsing PB file...
0.00/0.00	c Converting 205 PB-constraints to clauses...
0.00/0.00	c   -- Unit propagations: (none)
0.00/0.00	c   -- Detecting intervals from adjacent constraints: (none)
0.00/0.00	c   -- Clauses(.)/Splits(s): ............................................................................................................................................................................................................
0.00/0.00	c ---[   0]---> Adder-cost: 196   maxlim: 50   bits: 7/6
0.09/0.17	|  Eliminated clauses:           0.00 Mb                                      |
0.09/0.17	============================[ Search Statistics ]==============================
0.09/0.17	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.17	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.17	===============================================================================
0.09/0.17	|       100 |     294     1368     4385 |      501      100      4 |  1.335 % |
0.09/0.17	|       250 |     294     1368     4385 |      551      250      5 |  1.326 % |
0.09/0.17	|       475 |     294     1368     4385 |      606      475      8 |  1.326 % |
0.09/0.17	|       812 |     294     1368     4385 |      667      492      7 |  1.327 % |
0.09/0.17	|      1318 |     294     1368     4385 |      734      652      8 |  1.327 % |
0.09/0.17	|      2077 |     294     1368     4385 |      807      662      7 |  1.327 % |
0.09/0.17	|      3216 |     294     1368     4385 |      888      563      6 |  1.326 % |
0.09/0.17	|      4924 |     294     1368     4385 |      977      903      8 |  1.326 % |
0.09/0.17	|      7486 |     294     1368     4385 |     1075      955      7 |  1.327 % |
0.09/0.17	|     11330 |     294     1368     4385 |     1182      949      7 |  1.330 % |
0.09/0.17	===============================================================================
0.09/0.17	c UNSATISFIABLE
0.09/0.17	s UNSATISFIABLE
0.09/0.17	c _______________________________________________________________________________
0.09/0.17	c 
0.09/0.17	restarts              : 62
0.09/0.17	conflicts             : 14507          (84356 /sec)
0.09/0.17	decisions             : 18688          (0.00 % random) (108668 /sec)
0.09/0.17	propagations          : 620483         (3608026 /sec)
0.09/0.17	conflict literals     : 151362         (24.97 % deleted)
0.09/0.17	Memory used           : 6.47 MB
0.09/0.17	CPU time              : 0.171973 s
0.09/0.17	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-4113339-1466616960/watcher-4113339-1466616960 -o /tmp/evaluation-result-4113339-1466616960/solver-4113339-1466616960 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node117-1466586524-6145 --watchdog 1960 minisatp HOME/instance-4113339-1466616960.opb 

pid=11988
running on 4 cores: 0,2,4,6

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: 2.32 2.26 2.20 3/176 11991
/proc/meminfo: memFree=28467736/32872528 swapFree=1556504/1720024
[pid=11991] ppid=11988 vsize=6472 CPUtime=0 cores=0,2,4,6
/proc/11991/stat : 11991 (minisatp) R 11988 11991 6129 0 -1 4202496 384 0 0 0 0 0 0 0 20 0 1 0 63744641 6627328 261 33554432000 4194304 5646918 140735202770432 140734386672760 4692688 0 0 4096 16386 0 0 0 17 2 0 0 0 0 0
/proc/11991/statm: 1618 261 144 355 0 1259 0

[startup+0.100113 s]
/proc/loadavg: 2.32 2.26 2.20 3/176 11991
/proc/meminfo: memFree=28467736/32872528 swapFree=1556504/1720024
[pid=11991] ppid=11988 vsize=2416 CPUtime=0.09 cores=0,2,4,6
/proc/11991/stat : 11991 (minisatp) R 11988 11991 6129 0 -1 4202496 520 0 0 0 9 0 0 0 20 0 1 0 63744641 2473984 379 33554432000 4194304 5646918 140735202770432 140734386672760 4396895 0 0 4096 16386 0 0 0 17 2 0 0 0 0 0
/proc/11991/statm: 604 379 182 355 0 245 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2416

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 11991 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.100113 s]
/proc/loadavg: 2.32 2.26 2.20 3/176 11991
/proc/meminfo: memFree=28467736/32872528 swapFree=1556504/1720024
[pid=11991] ppid=11988 vsize=2416 CPUtime=0.09 cores=0,2,4,6
/proc/11991/stat : 11991 (minisatp) R 11988 11991 6129 0 -1 4202496 520 0 0 0 9 0 0 0 20 0 1 0 63744641 2473984 379 33554432000 4194304 5646918 140735202770432 140734386672760 4396895 0 0 4096 16386 0 0 0 17 2 0 0 0 0 0
/proc/11991/statm: 604 379 182 355 0 245 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2416

Child status: 0
Real time (s): 0.172807
CPU time (s): 0.172972
CPU user time (s): 0.171973
CPU system time (s): 0.000999
CPU usage (%): 100.095
Max. virtual memory (cumulated for all children) (KiB): 2416

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.171973
system time used= 0.000999
maximum resident set size= 1568
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 533
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= 1
involuntary context switches= 1

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.006998 second user time and 0.001999 second system time

The end

Launcher Data 

Begin job on node117 at 2016-06-22 19:36:00
IDJOB=4113339
IDBENCH=107345
IDSOLVER=2555
FILE ID=node117/4113339-1466616960
RUNJOBID= node117-1466586524-6145
PBS_JOBID= 19953369
Free space on /tmp= 71576 MiB

SOLVER NAME= minisatp 2012-10-02 git-d91742b
BENCH NAME= PB16/normalized-PB16/DEC-SMALLINT-LIN/pb16-16-elffers/vertexcover-instances/normalized-vertexcover-grid6x17.opb
COMMAND LINE= minisatp BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4113339-1466616960/watcher-4113339-1466616960 -o /tmp/evaluation-result-4113339-1466616960/solver-4113339-1466616960 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node117-1466586524-6145 --watchdog 1960  minisatp HOME/instance-4113339-1466616960.opb

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

MD5SUM BENCH= 30d12a1a3fff9b153f01a9180eb6bd43
RANDOM SEED=1736396167

node117.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		: 2666.912
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	: 5333.82
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		: 2666.912
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		: 2666.912
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		: 2666.912
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		: 2666.912
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	: 5332.54
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		: 2666.912
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		: 2666.912
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	: 5332.54
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		: 2666.912
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	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32872528 kB
MemFree:        28468404 kB
Buffers:          111772 kB
Cached:           561472 kB
SwapCached:         3316 kB
Active:          1415620 kB
Inactive:         518836 kB
Active(anon):    1256208 kB
Inactive(anon):     7096 kB
Active(file):     159412 kB
Inactive(file):   511740 kB
Unevictable:     1720024 kB
Mlocked:         1556504 kB
SwapTotal:      67108856 kB
SwapFree:       67099760 kB
Dirty:              3460 kB
Writeback:             0 kB
AnonPages:       2979052 kB
Mapped:             9456 kB
Shmem:                 0 kB
Slab:             613404 kB
SReclaimable:      56780 kB
SUnreclaim:       556624 kB
KernelStack:        1472 kB
PageTables:        10084 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545120 kB
Committed_AS:    3240676 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346412 kB
VmallocChunk:   34341988032 kB
HardwareCorrupted:     0 kB
AnonHugePages:   1030144 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7552 kB
DirectMap2M:    33538048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-4113339-1466616960.opb

Free space on /tmp at the end= 71572 MiB
End job on node117 at 2016-06-22 19:36:00