Trace number 1880390

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 3.1 pbUNSAT 2.75258 2.7538

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
MD5SUMd30cbdfbaf2c404a9c4e9217e33c734d
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 benchmark0.225965
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables6392
Total number of constraints18058
Number of constraints which are clauses17278
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints780
Minimum length of a constraint1
Maximum length of a constraint11
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 33
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 126
Number of bits of the biggest sum of numbers7
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 3.1 - 13/04/2009 : 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: Generic Pseudo-Boolean Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file HOME/instance-1880390-1245129763.opb
0.00/0.00	c File size is 551974 bytes.
0.00/0.07	c Highest Coefficient sum: 126
0.00/0.07	c Parsing was ok!!
0.00/0.07	c Total parsing time: 0.076 s
0.00/0.08	c Var: 6392 Constr: 18058 17278/0/780 Lit: 48384 Watch. Lit: 36951
0.00/0.08	c Obj. Vars: 0 (0 % of total variables)
1.99/2.05	c Pre-processing Time: 2.048 s
1.99/2.05	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
1.99/2.05	c        0   4772    13610    38169    2    28414   20796      0      0 2.05
1.99/2.05	c Switching off lower bounding mode.
2.68/2.75	c      100   4772    13808    40930    2    31141   22876    198     47 2.10
2.68/2.75	c      252   4772    14099    48867    3    31928   25164    489    114 2.20
2.68/2.75	c      477   3892    14378    53054    3    32688   27681    768    202 2.35
2.68/2.75	c      816   3878    14802    61128    4    33565   30450   1192    302 2.70
2.68/2.75	c Backtracks by Clause: 893
2.68/2.75	c Backtracks by PB constraint: 6
2.68/2.75	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
2.68/2.75	c    4      899    402     4644    14898    62312   1288    326 2.75
2.68/2.75	s UNSATISFIABLE
2.68/2.75	c Total time: 2.75 s

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-1880390-1245129763/watcher-1880390-1245129763 -o /tmp/evaluation-result-1880390-1245129763/solver-1880390-1245129763 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880390-1245129763.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: 0.99 0.97 0.98 3/64 3236
/proc/meminfo: memFree=914544/2055920 swapFree=4192952/4192956
[pid=3236] ppid=3234 vsize=11252 CPUtime=0
/proc/3236/stat : 3236 (bsolo) R 3234 3236 2849 0 -1 4194304 257 0 0 0 0 0 0 0 18 0 1 0 180575617 11522048 241 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3236/statm: 2813 241 176 640 0 2034 0

[startup+0.00908401 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 3236
/proc/meminfo: memFree=914544/2055920 swapFree=4192952/4192956
[pid=3236] ppid=3234 vsize=11388 CPUtime=0
/proc/3236/stat : 3236 (bsolo) R 3234 3236 2849 0 -1 4194304 299 0 0 0 0 0 0 0 18 0 1 0 180575617 11661312 283 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3236/statm: 2847 284 183 640 0 2068 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 11388

[startup+0.102094 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 3236
/proc/meminfo: memFree=914544/2055920 swapFree=4192952/4192956
[pid=3236] ppid=3234 vsize=14492 CPUtime=0.09
/proc/3236/stat : 3236 (bsolo) R 3234 3236 2849 0 -1 4194304 1326 0 0 0 9 0 0 0 18 0 1 0 180575617 14839808 1175 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3236/statm: 3623 1175 189 640 0 2979 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 14492

[startup+0.302116 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 3236
/proc/meminfo: memFree=914544/2055920 swapFree=4192952/4192956
[pid=3236] ppid=3234 vsize=14492 CPUtime=0.29
/proc/3236/stat : 3236 (bsolo) R 3234 3236 2849 0 -1 4194304 1336 0 0 0 29 0 0 0 19 0 1 0 180575617 14839808 1185 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3236/statm: 3623 1185 189 640 0 2979 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14492

[startup+0.70217 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 3236
/proc/meminfo: memFree=914544/2055920 swapFree=4192952/4192956
[pid=3236] ppid=3234 vsize=14492 CPUtime=0.69
/proc/3236/stat : 3236 (bsolo) R 3234 3236 2849 0 -1 4194304 1344 0 0 0 68 1 0 0 22 0 1 0 180575617 14839808 1193 1992294400 134512640 137136520 4294956256 18446744073709551615 134543819 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3236/statm: 3623 1193 189 640 0 2979 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14492

[startup+1.50125 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 3237
/proc/meminfo: memFree=910312/2055920 swapFree=4192952/4192956
[pid=3236] ppid=3234 vsize=14624 CPUtime=1.49
/proc/3236/stat : 3236 (bsolo) R 3234 3236 2849 0 -1 4194304 1355 0 0 0 148 1 0 0 25 0 1 0 180575617 14974976 1204 1992294400 134512640 137136520 4294956256 18446744073709551615 134543735 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3236/statm: 3656 1204 189 640 0 3012 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14624

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

[startup+2.30134 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 3237
/proc/meminfo: memFree=909928/2055920 swapFree=4192952/4192956
[pid=3236] ppid=3234 vsize=14664 CPUtime=2.29
/proc/3236/stat : 3236 (bsolo) R 3234 3236 2849 0 -1 4194304 1423 0 0 0 227 2 0 0 25 0 1 0 180575617 15015936 1249 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3236/statm: 3666 1249 198 640 0 3022 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 14664

[startup+2.70138 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 3237
/proc/meminfo: memFree=909928/2055920 swapFree=4192952/4192956
[pid=3236] ppid=3234 vsize=14768 CPUtime=2.68
/proc/3236/stat : 3236 (bsolo) R 3234 3236 2849 0 -1 4194304 1443 0 0 0 266 2 0 0 25 0 1 0 180575617 15122432 1269 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3236/statm: 3692 1269 198 640 0 3048 0
Current children cumulated CPU time (s) 2.68
Current children cumulated vsize (KiB) 14768

Child status: 0
Real time (s): 2.7538
CPU time (s): 2.75258
CPU user time (s): 2.72059
CPU system time (s): 0.031995
CPU usage (%): 99.9556
Max. virtual memory (cumulated for all children) (KiB): 14784

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.72059
system time used= 0.031995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1444
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= 3

runsolver used 0.003999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node35 at 2009-06-16 07:22:43
IDJOB=1880390
IDBENCH=1478
IDSOLVER=701
FILE ID=node35/1880390-1245129763
PBS_JOBID= 9363679
Free space on /tmp= 66136 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880390-1245129763/watcher-1880390-1245129763 -o /tmp/evaluation-result-1880390-1245129763/solver-1880390-1245129763 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880390-1245129763.opb

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

MD5SUM BENCH= d30cbdfbaf2c404a9c4e9217e33c734d
RANDOM SEED=830921638

node35.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		: 3000.232
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		: 3000.232
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:        915024 kB
Buffers:         84200 kB
Cached:         958100 kB
SwapCached:          4 kB
Active:          85568 kB
Inactive:       970656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        915024 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            4484 kB
Writeback:           0 kB
Mapped:          23724 kB
Slab:            70644 kB
Committed_AS:   165092 kB
PageTables:       1400 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66132 MiB
End job on node35 at 2009-06-16 07:22:46