Trace number 361939

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, and are wall clock time (not CPU 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 3.0.16UNSAT 0.015997 0.060754

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-blast-floppy1-2.ucl.opb
MD5SUM8f7a1fac4c983753f7c940f764b3437e
Bench CategorySATUNSAT-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 benchmark0.014996
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables152
Total number of constraints127
Number of constraints which are clauses77
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints50
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 772
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 2305
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 (download as text)

0.00/0.04	c bsolo beta version 3.0.16 - 04/04/2007 : 1458 GMT
0.00/0.04	c Developed by Vasco Manquinho IST/UTL - INESC-ID
0.00/0.04	c type "bsolo -h" for help
0.00/0.04	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.04	c Time Limit set to 1800
0.00/0.04	c Memory Limit set to 1800 MB
0.00/0.04	c Instance file /tmp/evaluation/361939-1177004701/instance-361939-1177004701.opb
0.00/0.04	c File size is 8964 bytes.
0.00/0.05	c Highest Coefficient sum: 2305
0.00/0.05	c Parsing was ok!!
0.00/0.05	c Total parsing time: 0.002 s
0.00/0.05	c Var: 152 Constr: 127 77/0/50 Lit: 991 Watch. Lit: 307
0.00/0.05	c Obj. Vars: 0 (0 % of total variables)
0.00/0.05	c Pre-processing Time: 0.003 s
0.00/0.05	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.05	c        0     81       28      333   11      103     652      0      0 0.00
0.00/0.05	c Switching off LPR mode.
0.00/0.05	c      100     79      128      896    7      458     718    100  11111 0.01
0.00/0.05	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.00/0.05	c    1      127      1      132      155      982    127  11545 0.01
0.00/0.05	s UNSATISFIABLE
0.00/0.05	c Total time: 0.011 s

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node74/watcher-361939-1177004701 -o ROOT/results/node74/solver-361939-1177004701 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/361939-1177004701/instance-361939-1177004701.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): 3600 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 3/66 438
/proc/meminfo: memFree=1855512/2055920 swapFree=4183056/4192956
[pid=438] ppid=436 vsize=18568 CPUtime=0
/proc/438/stat : 438 (runsolver) D 436 438 32084 0 -1 4194368 17 0 0 0 0 0 0 0 18 0 1 0 148384873 19013632 292 18446744073709551615 4194304 4296420 548682068960 18446744073709551615 228774702375 0 0 4096 24578 18446744071563608240 0 0 17 0 0 0
/proc/438/statm: 4642 292 257 24 0 2626 0

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

Child status: 0
Real time (s): 0.060754
CPU time (s): 0.015997
CPU user time (s): 0.011998
CPU system time (s): 0.003999
CPU usage (%): 26.3308
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.011998
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 411
page faults= 4
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 21
involuntary context switches= 0

runsolver used 0.000999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node74 on Thu Apr 19 17:45:01 UTC 2007

IDJOB= 361939
IDBENCH= 1485
IDSOLVER= 163
FILE ID= node74/361939-1177004701

PBS_JOBID= 4630474

Free space on /tmp= 103201 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-blast-floppy1-2.ucl.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/361939-1177004701/instance-361939-1177004701.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node74/watcher-361939-1177004701 -o ROOT/results/node74/solver-361939-1177004701 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/361939-1177004701/instance-361939-1177004701.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  8f7a1fac4c983753f7c940f764b3437e

RANDOM SEED= 399838580

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node74.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.213
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		: 3000.213
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:       1856112 kB
Buffers:         15252 kB
Cached:         110480 kB
SwapCached:       2992 kB
Active:          28952 kB
Inactive:       108336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1856112 kB
SwapTotal:     4192956 kB
SwapFree:      4183056 kB
Dirty:            4400 kB
Writeback:           0 kB
Mapped:          17588 kB
Slab:            48356 kB
Committed_AS:  2044052 kB
PageTables:       1484 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 103201 MiB

End job on node74 on Thu Apr 19 17:45:01 UTC 2007