Trace number 1876081

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
wbo 1.0UNSAT 0.364944 0.365168

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-blast-tlan3.ucl.opb
MD5SUM6ebe1c273e27161d3207e8be45324cc2
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 benchmark0.364944
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables19944
Total number of constraints50842
Number of constraints which are clauses43898
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints6944
Minimum length of a constraint1
Maximum length of a constraint19
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 641
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 2174
Number of bits of the biggest sum of numbers12
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 This is wbo 1.0 alpha (based on Minisat 2.0 beta)
0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c Parsing opb file format. File HOME/instance-1876081-1245128596.opb.
0.00/0.00	c Instance file HOME/instance-1876081-1245128596.opb
0.00/0.00	c File size is 2600763 bytes.
0.29/0.36	c Highest Coefficient sum: 2174
0.29/0.36	c ============================[ Problem Statistics ]=============================
0.29/0.36	c |                                                                             |
0.29/0.36	c |  Parsing time:          0.35         s                                      |
0.29/0.36	c |  Number Variables:      19944                                               |
0.29/0.36	c |  Number Clauses:        43898                                               |
0.29/0.36	c |  Number Cardinality:    0                                                   |
0.29/0.36	c |  Number PB Constraints: 6944                                                |
0.29/0.36	c core #1
0.29/0.36	c Core size: 122	Core Weight: 2147483647	Total Weight: 2147483647
0.29/0.36	c restarts              : 0
0.29/0.36	c conflicts             : 0              (0 /sec)
0.29/0.36	c decisions             : 0              ( nan % random) (0 /sec)
0.29/0.36	c propagations          : 294            (831 /sec)
0.29/0.36	c conflict literals     : 0              ( nan % deleted)
0.29/0.36	c Memory used           : 9.36 MB
0.29/0.36	c CPU time              : 0.353946 s
0.29/0.36	c 
0.29/0.36	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1876081-1245128596/watcher-1876081-1245128596 -o /tmp/evaluation-result-1876081-1245128596/solver-1876081-1245128596 -C 1800 -W 2000 -M 1800 wbo -file-format=opb -time-limit=1800 HOME/instance-1876081-1245128596.opb 

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): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.83 0.95 0.98 3/64 32587
/proc/meminfo: memFree=1776240/2055920 swapFree=4191900/4192956
[pid=32587] ppid=32585 vsize=5064 CPUtime=0
/proc/32587/stat : 32587 (wbo) R 32585 32587 32310 0 -1 4194304 202 0 0 0 0 0 0 0 18 0 1 0 180459219 5185536 186 1992294400 134512640 135709839 4294956240 18446744073709551615 134548059 0 0 4096 3 0 0 0 17 1 0 0
/proc/32587/statm: 1266 194 126 292 0 336 0

[startup+0.0538379 s]
/proc/loadavg: 0.83 0.95 0.98 3/64 32587
/proc/meminfo: memFree=1776240/2055920 swapFree=4191900/4192956
[pid=32587] ppid=32585 vsize=6436 CPUtime=0.05
/proc/32587/stat : 32587 (wbo) R 32585 32587 32310 0 -1 4194304 630 0 0 0 5 0 0 0 18 0 1 0 180459219 6590464 614 1992294400 134512640 135709839 4294956240 18446744073709551615 134544161 0 0 4096 3 0 0 0 17 1 0 0
/proc/32587/statm: 1609 614 209 292 0 679 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6436

[startup+0.10284 s]
/proc/loadavg: 0.83 0.95 0.98 3/64 32587
/proc/meminfo: memFree=1776240/2055920 swapFree=4191900/4192956
[pid=32587] ppid=32585 vsize=7828 CPUtime=0.09
/proc/32587/stat : 32587 (wbo) R 32585 32587 32310 0 -1 4194304 1008 0 0 0 9 0 0 0 18 0 1 0 180459219 8015872 992 1992294400 134512640 135709839 4294956240 18446744073709551615 134548059 0 0 4096 3 0 0 0 17 1 0 0
/proc/32587/statm: 1957 992 293 292 0 1027 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7828

[startup+0.301852 s]
/proc/loadavg: 0.83 0.95 0.98 3/64 32587
/proc/meminfo: memFree=1776240/2055920 swapFree=4191900/4192956
[pid=32587] ppid=32585 vsize=11012 CPUtime=0.29
/proc/32587/stat : 32587 (wbo) R 32585 32587 32310 0 -1 4194304 2133 0 0 0 29 0 0 0 19 0 1 0 180459219 11276288 2117 1992294400 134512640 135709839 4294956240 18446744073709551615 134547899 0 0 4096 3 0 0 0 17 1 0 0
/proc/32587/statm: 2753 2117 647 292 0 1823 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11012

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

Child status: 0
Real time (s): 0.365168
CPU time (s): 0.364944
CPU user time (s): 0.353946
CPU system time (s): 0.010998
CPU usage (%): 99.9386
Max. virtual memory (cumulated for all children) (KiB): 11012

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.353946
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2576
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= 2
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node29 at 2009-06-16 07:03:17
IDJOB=1876081
IDBENCH=1456
IDSOLVER=698
FILE ID=node29/1876081-1245128596
PBS_JOBID= 9363703
Free space on /tmp= 66240 MiB

SOLVER NAME= wbo 1.0
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-blast-tlan3.ucl.opb
COMMAND LINE= wbo -file-format=opb -time-limit=TIMEOUT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1876081-1245128596/watcher-1876081-1245128596 -o /tmp/evaluation-result-1876081-1245128596/solver-1876081-1245128596 -C 1800 -W 2000 -M 1800  wbo -file-format=opb -time-limit=1800 HOME/instance-1876081-1245128596.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 6ebe1c273e27161d3207e8be45324cc2
RANDOM SEED=1635950221

node29.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.237
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.237
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1776656 kB
Buffers:         31912 kB
Cached:         183108 kB
SwapCached:        268 kB
Active:          76188 kB
Inactive:       151564 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1776656 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            5316 kB
Writeback:           0 kB
Mapped:          21240 kB
Slab:            37408 kB
Committed_AS:   166220 kB
PageTables:       1472 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-1876081-1245128596.opb

Free space on /tmp at the end= 66236 MiB
End job on node29 at 2009-06-16 07:03:17