Trace number 4113262

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 0.339947 0.340119

General information on the benchmark

Namenormalized-PB16/DEC-SMALLINT-LIN/pb16-16-elffers/
vertexcover-instances/normalized-vertexcover-grid6x21.opb
MD5SUM8342f9c81628dad15cbbf5cf5512f9ff
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 benchmark0.005999
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables126
Total number of constraints253
Number of constraints which are clauses252
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 constraint126
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 63
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 189
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 253 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: 240   maxlim: 62   bits: 7/6
0.29/0.34	|  Eliminated clauses:           0.00 Mb                                      |
0.29/0.34	============================[ Search Statistics ]==============================
0.29/0.34	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.29/0.34	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.29/0.34	===============================================================================
0.29/0.34	|       100 |     360     1694     5427 |      621      100      5 |  1.620 % |
0.29/0.34	|       250 |     360     1694     5427 |      683      250      5 |  1.614 % |
0.29/0.34	|       475 |     360     1694     5427 |      751      475      7 |  1.614 % |
0.29/0.34	|       812 |     360     1694     5427 |      826      411      6 |  1.614 % |
0.29/0.34	|      1318 |     360     1694     5427 |      909      490      6 |  1.614 % |
0.29/0.34	|      2077 |     360     1694     5427 |     1000      773      8 |  1.614 % |
0.29/0.34	|      3216 |     360     1694     5427 |     1100      879      7 |  1.614 % |
0.29/0.34	|      4924 |     360     1694     5427 |     1210      889      7 |  1.616 % |
0.29/0.34	|      7486 |     360     1694     5427 |     1331      989      7 |  1.614 % |
0.29/0.34	|     11330 |     360     1694     5427 |     1464      760      6 |  1.614 % |
0.29/0.34	|     17096 |     360     1694     5427 |     1611     1321      8 |  1.616 % |
0.29/0.34	|     25745 |     358     1694     5427 |     1772      886      7 |  2.153 % |
0.29/0.34	===============================================================================
0.29/0.34	c UNSATISFIABLE
0.29/0.34	s UNSATISFIABLE
0.29/0.34	c _______________________________________________________________________________
0.29/0.34	c 
0.29/0.34	restarts              : 97
0.29/0.34	conflicts             : 27589          (81396 /sec)
0.29/0.34	decisions             : 33645          (0.00 % random) (99263 /sec)
0.29/0.34	propagations          : 1092679        (3223736 /sec)
0.29/0.34	conflict literals     : 292694         (29.71 % deleted)
0.29/0.34	Memory used           : 6.59 MB
0.29/0.34	CPU time              : 0.338948 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-4113262-1466617928/watcher-4113262-1466617928 -o /tmp/evaluation-result-4113262-1466617928/solver-4113262-1466617928 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node107-1466586461-8505 --watchdog 1960 minisatp HOME/instance-4113262-1466617928.opb 

pid=12919
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: 2.04 2.04 2.02 3/176 12922
/proc/meminfo: memFree=31541160/32872528 swapFree=241860/274564
[pid=12922] ppid=12919 vsize=6472 CPUtime=0 cores=0,2,4,6
/proc/12922/stat : 12922 (minisatp) R 12919 12922 8489 0 -1 4202496 351 0 0 0 0 0 0 0 20 0 1 0 63842789 6627328 227 33554432000 4194304 5646918 140736381158640 140735040215688 4866896 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0
/proc/12922/statm: 1618 227 116 355 0 1259 0

[startup+0.100165 s]
/proc/loadavg: 2.04 2.04 2.02 3/176 12922
/proc/meminfo: memFree=31541160/32872528 swapFree=241860/274564
[pid=12922] ppid=12919 vsize=2536 CPUtime=0.09 cores=0,2,4,6
/proc/12922/stat : 12922 (minisatp) R 12919 12922 8489 0 -1 4202496 545 0 0 0 9 0 0 0 20 0 1 0 63842789 2596864 396 33554432000 4194304 5646918 140736381158640 140735040215688 4403184 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0
/proc/12922/statm: 634 396 182 355 0 275 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2536

[startup+0.200271 s]
/proc/loadavg: 2.04 2.04 2.02 3/176 12922
/proc/meminfo: memFree=31541160/32872528 swapFree=241860/274564
[pid=12922] ppid=12919 vsize=2720 CPUtime=0.19 cores=0,2,4,6
/proc/12922/stat : 12922 (minisatp) R 12919 12922 8489 0 -1 4202496 584 0 0 0 19 0 0 0 20 0 1 0 63842789 2785280 435 33554432000 4194304 5646918 140736381158640 140735040215688 4417816 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0
/proc/12922/statm: 680 435 182 355 0 321 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 2720

[startup+0.300267 s]
/proc/loadavg: 2.04 2.04 2.02 3/176 12922
/proc/meminfo: memFree=31541160/32872528 swapFree=241860/274564
[pid=12922] ppid=12919 vsize=2720 CPUtime=0.29 cores=0,2,4,6
/proc/12922/stat : 12922 (minisatp) R 12919 12922 8489 0 -1 4202496 591 0 0 0 29 0 0 0 20 0 1 0 63842789 2785280 441 33554432000 4194304 5646918 140736381158640 140735040215688 4402988 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0
/proc/12922/statm: 680 441 182 355 0 321 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2720

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 12922 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.300267 s]
/proc/loadavg: 2.04 2.04 2.02 3/176 12922
/proc/meminfo: memFree=31541160/32872528 swapFree=241860/274564
[pid=12922] ppid=12919 vsize=2720 CPUtime=0.29 cores=0,2,4,6
/proc/12922/stat : 12922 (minisatp) R 12919 12922 8489 0 -1 4202496 591 0 0 0 29 0 0 0 20 0 1 0 63842789 2785280 441 33554432000 4194304 5646918 140736381158640 140735040215688 4402988 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0
/proc/12922/statm: 680 441 182 355 0 321 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2720

Child status: 0
Real time (s): 0.340119
CPU time (s): 0.339947
CPU user time (s): 0.338948
CPU system time (s): 0.000999
CPU usage (%): 99.9495
Max. virtual memory (cumulated for all children) (KiB): 2720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.338948
system time used= 0.000999
maximum resident set size= 1804
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 601
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 0.004999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node107 at 2016-06-22 19:52:08
IDJOB=4113262
IDBENCH=107435
IDSOLVER=2555
FILE ID=node107/4113262-1466617928
RUNJOBID= node107-1466586461-8505
PBS_JOBID= 19953368
Free space on /tmp= 71704 MiB

SOLVER NAME= minisatp 2012-10-02 git-d91742b
BENCH NAME= PB16/normalized-PB16/DEC-SMALLINT-LIN/pb16-16-elffers/vertexcover-instances/normalized-vertexcover-grid6x21.opb
COMMAND LINE= minisatp BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4113262-1466617928/watcher-4113262-1466617928 -o /tmp/evaluation-result-4113262-1466617928/solver-4113262-1466617928 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node107-1466586461-8505 --watchdog 1960  minisatp HOME/instance-4113262-1466617928.opb

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

MD5SUM BENCH= 8342f9c81628dad15cbbf5cf5512f9ff
RANDOM SEED=1895429334

node107.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		: 2666.953
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	: 5333.90
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		: 2666.953
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		: 2666.953
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	: 5332.56
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		: 2666.953
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	: 5332.56
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		: 2666.953
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		: 2666.953
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	: 5332.56
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		: 2666.953
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		: 2666.953
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	: 5332.57
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32872528 kB
MemFree:        31541076 kB
Buffers:          105184 kB
Cached:           192208 kB
SwapCached:         2104 kB
Active:            87564 kB
Inactive:         228388 kB
Active(anon):      19256 kB
Inactive(anon):     1908 kB
Active(file):      68308 kB
Inactive(file):   226480 kB
Unevictable:      274564 kB
Mlocked:          241860 kB
SwapTotal:      67108856 kB
SwapFree:       67099484 kB
Dirty:              3556 kB
Writeback:             0 kB
AnonPages:        292128 kB
Mapped:             8920 kB
Shmem:                 0 kB
Slab:             610472 kB
SReclaimable:      53944 kB
SUnreclaim:       556528 kB
KernelStack:        1472 kB
PageTables:         4708 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545120 kB
Committed_AS:     408672 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346412 kB
VmallocChunk:   34341988032 kB
HardwareCorrupted:     0 kB
AnonHugePages:     32768 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-4113262-1466617928.opb

Free space on /tmp at the end= 71700 MiB
End job on node107 at 2016-06-22 19:52:08