Trace number 3707536

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
bsolo 3.2UNSAT 0.374942 0.376283

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/
submitted-PB06/roussel/normalized-pigeon-cardinality-51-50.opb
MD5SUM285c24e978af8153c6a378b9af59f522
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
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 benchmark0.049991
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables2550
Total number of constraints101
Number of constraints which are clauses51
Number of constraints which are cardinality constraints (but not clauses)50
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint50
Maximum length of a constraint51
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 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 52
Number of bits of the biggest sum of numbers6
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 bsolo beta version 3.2 - 23/05/2010 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Learning Strategy: Cardinality Constraint Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Instance file HOME/instance-3707536-1338154875.opb
0.00/0.00	c File size is 44645 bytes.
0.00/0.00	c Highest Coefficient sum: 52
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.002 s
0.00/0.00	c Var: 2550 Constr: 101 51/50/0 Lit: 5100 Watch. Lit: 2652
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.04/0.05	c Pre-processing Time: 0.056 s
0.04/0.05	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.04/0.05	c        0   2550      101     5100   50     2652   42517      0      0 0.06
0.04/0.05	c Switching off lower bounding mode.
0.29/0.37	c      101   2550      239    91070  381    21567   46769    138    526 0.19
0.29/0.37	c Backtracks by Clause: 178
0.29/0.37	c Backtracks by PB constraint: 54
0.29/0.37	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.29/0.37	c    1      283    171     7482      438   158465    337    760 0.37
0.29/0.37	s UNSATISFIABLE
0.29/0.37	c Total time: 0.372 s

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 989)

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-3707536-1338154875/watcher-3707536-1338154875 -o /tmp/evaluation-result-3707536-1338154875/solver-3707536-1338154875 -C 1800 -W 1900 -M 15500 bsolo -l2 -t1800 HOME/instance-3707536-1338154875.opb 

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: 2.01 2.02 2.00 3/176 28770
/proc/meminfo: memFree=27736656/32873648 swapFree=7104/7104
[pid=28770] ppid=28768 vsize=11204 CPUtime=0 cores=1,3,5,7
/proc/28770/stat : 28770 (bsolo) R 28768 28770 23788 0 -1 4202496 402 0 0 0 0 0 0 0 20 0 1 0 281612914 11472896 344 33554432000 134512640 137138936 4288337520 4288305596 136570369 0 0 4096 16384 0 0 0 17 3 0 0 0 0 0
/proc/28770/statm: 2801 344 184 642 0 2157 0

[startup+0.045972 s]
/proc/loadavg: 2.01 2.02 2.00 3/176 28770
/proc/meminfo: memFree=27736656/32873648 swapFree=7104/7104
[pid=28770] ppid=28768 vsize=11240 CPUtime=0.04 cores=1,3,5,7
/proc/28770/stat : 28770 (bsolo) R 28768 28770 23788 0 -1 4202496 433 0 0 0 4 0 0 0 20 0 1 0 281612914 11509760 375 33554432000 134512640 137138936 4288337520 4288305388 136570369 0 0 4096 16384 0 0 0 17 3 0 0 0 0 0
/proc/28770/statm: 2810 375 185 642 0 2166 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 11240

[startup+0.10021 s]
/proc/loadavg: 2.01 2.02 2.00 3/176 28770
/proc/meminfo: memFree=27736656/32873648 swapFree=7104/7104
[pid=28770] ppid=28768 vsize=11824 CPUtime=0.09 cores=1,3,5,7
/proc/28770/stat : 28770 (bsolo) R 28768 28770 23788 0 -1 4202496 589 0 0 0 9 0 0 0 20 0 1 0 281612914 12107776 531 33554432000 134512640 137138936 4288337520 4288336636 136570369 0 0 4096 16384 0 0 0 17 3 0 0 0 0 0
/proc/28770/statm: 2956 531 192 642 0 2312 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11824

[startup+0.300179 s]
/proc/loadavg: 2.01 2.02 2.00 3/176 28770
/proc/meminfo: memFree=27736656/32873648 swapFree=7104/7104
[pid=28770] ppid=28768 vsize=13748 CPUtime=0.29 cores=1,3,5,7
/proc/28770/stat : 28770 (bsolo) R 28768 28770 23788 0 -1 4202496 1063 0 0 0 29 0 0 0 20 0 1 0 281612914 14077952 1005 33554432000 134512640 137138936 4288337520 4288336272 134575873 0 0 4096 16384 0 0 0 17 3 0 0 0 0 0
/proc/28770/statm: 3437 1005 192 642 0 2793 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13748

Solver just ended. Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.376283
CPU time (s): 0.374942
CPU user time (s): 0.366944
CPU system time (s): 0.007998
CPU usage (%): 99.6436
Max. virtual memory (cumulated for all children) (KiB): 13748

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.366944
system time used= 0.007998
maximum resident set size= 4052
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1071
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= 1

runsolver used 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node127 at 2012-05-27 23:41:15
IDJOB=3707536
IDBENCH=2597
IDSOLVER=2286
FILE ID=node127/3707536-1338154875
RUNJOBID= node127-1338149212-27948
PBS_JOBID= 14624481
Free space on /tmp= 71172 MiB

SOLVER NAME= bsolo 3.2
BENCH NAME= PB06/final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/roussel/normalized-pigeon-cardinality-51-50.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3707536-1338154875/watcher-3707536-1338154875 -o /tmp/evaluation-result-3707536-1338154875/solver-3707536-1338154875 -C 1800 -W 1900 -M 15500  bsolo -l2 -t1800 HOME/instance-3707536-1338154875.opb

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

MD5SUM BENCH= 285c24e978af8153c6a378b9af59f522
RANDOM SEED=1974917829

node127.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		: 2666.348
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	: 5332.69
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		: 2666.348
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	: 5331.91
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		: 2666.348
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	: 5331.94
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		: 2666.348
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	: 5331.91
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		: 2666.348
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	: 5331.91
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		: 2666.348
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	: 5331.91
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		: 2666.348
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	: 5331.91
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		: 2666.348
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	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32873648 kB
MemFree:        27737284 kB
Buffers:          476964 kB
Cached:          3515812 kB
SwapCached:            0 kB
Active:          1462700 kB
Inactive:        2786688 kB
Active(anon):     258572 kB
Inactive(anon):        0 kB
Active(file):    1204128 kB
Inactive(file):  2786688 kB
Unevictable:        7104 kB
Mlocked:            7104 kB
SwapTotal:      67108856 kB
SwapFree:       67108856 kB
Dirty:              3664 kB
Writeback:             0 kB
AnonPages:        264816 kB
Mapped:            15128 kB
Shmem:               200 kB
Slab:             743676 kB
SReclaimable:     187816 kB
SUnreclaim:       555860 kB
KernelStack:        1480 kB
PageTables:         4628 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545680 kB
Committed_AS:     377308 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346400 kB
VmallocChunk:   34341988052 kB
HardwareCorrupted:     0 kB
AnonHugePages:    221184 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7680 kB
DirectMap2M:    33538048 kB

Free space on /tmp at the end= 71168 MiB
End job on node127 at 2012-05-27 23:41:15