Trace number 1877520

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 3.1UNSAT 2.52461 2.52858

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/
normalized-ooo.burch_dill.3.accl.ucl.opb
MD5SUM03090e2b7426cc03a4be73b62ee3d658
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 benchmark2.52461
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables4622
Total number of constraints12569
Number of constraints which are clauses11753
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints816
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 36
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 130
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 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: Cardinality Constraint 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-1877520-1245129037.opb
0.00/0.00	c File size is 397949 bytes.
0.00/0.05	c Highest Coefficient sum: 130
0.00/0.05	c Parsing was ok!!
0.00/0.05	c Total parsing time: 0.05 s
0.00/0.06	c Var: 4622 Constr: 12569 11753/0/816 Lit: 35913 Watch. Lit: 26055
0.00/0.06	c Obj. Vars: 0 (0 % of total variables)
0.78/0.83	c Pre-processing Time: 0.832 s
0.78/0.83	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.78/0.83	c        0   3509     9691    29316    3    20630   20140      0      0 0.83
0.78/0.83	c Switching off lower bounding mode.
2.49/2.52	c      100   3509     9868    30814    3    23173   22155    177    114 0.88
2.49/2.52	c      251   3509    10155    36027    3    23990   24371    464    265 0.94
2.49/2.52	c      476   3506    10568    42448    4    24848   26809    877    455 1.04
2.49/2.52	c      815   3506    11165    52127    4    25908   29490   1474    713 1.14
2.49/2.52	c     1323   3292    12059    83490    6    28113   32440   2368    944 1.40
2.49/2.52	c     2086   3266    13160   143469   10    30313   35685   3469   1106 1.89
2.49/2.52	c Backtracks by Clause: 2885
2.49/2.52	c Backtracks by PB constraint: 49
2.49/2.52	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
2.49/2.52	c    6     3037   1275    12029    14580   181217   4889   1204 2.52
2.49/2.52	s UNSATISFIABLE
2.49/2.52	c Total time: 2.522 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-1877520-1245129037/watcher-1877520-1245129037 -o /tmp/evaluation-result-1877520-1245129037/solver-1877520-1245129037 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877520-1245129037.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: 0.92 0.95 0.97 3/65 1980
/proc/meminfo: memFree=1741320/2055920 swapFree=4192812/4192956
[pid=1980] ppid=1978 vsize=11100 CPUtime=0
/proc/1980/stat : 1980 (bsolo) R 1978 1980 1941 0 -1 4194304 251 0 0 0 0 0 0 0 20 0 1 0 169430133 11366400 235 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 0 0 0
/proc/1980/statm: 2775 235 175 640 0 2033 0

[startup+0.06921 s]
/proc/loadavg: 0.92 0.95 0.97 3/65 1980
/proc/meminfo: memFree=1741320/2055920 swapFree=4192812/4192956
[pid=1980] ppid=1978 vsize=13348 CPUtime=0.06
/proc/1980/stat : 1980 (bsolo) R 1978 1980 1941 0 -1 4194304 1006 0 0 0 6 0 0 0 20 0 1 0 169430133 13668352 892 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/1980/statm: 3337 892 189 640 0 2693 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 13348

[startup+0.10221 s]
/proc/loadavg: 0.92 0.95 0.97 3/65 1980
/proc/meminfo: memFree=1741320/2055920 swapFree=4192812/4192956
[pid=1980] ppid=1978 vsize=13348 CPUtime=0.09
/proc/1980/stat : 1980 (bsolo) R 1978 1980 1941 0 -1 4194304 1024 0 0 0 9 0 0 0 20 0 1 0 169430133 13668352 910 1992294400 134512640 137136520 4294956256 18446744073709551615 136294932 0 0 4096 16384 0 0 0 17 0 0 0
/proc/1980/statm: 3337 910 189 640 0 2693 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13348

[startup+0.301228 s]
/proc/loadavg: 0.92 0.95 0.97 3/65 1980
/proc/meminfo: memFree=1741320/2055920 swapFree=4192812/4192956
[pid=1980] ppid=1978 vsize=13480 CPUtime=0.29
/proc/1980/stat : 1980 (bsolo) R 1978 1980 1941 0 -1 4194304 1037 0 0 0 29 0 0 0 21 0 1 0 169430133 13803520 923 1992294400 134512640 137136520 4294956256 18446744073709551615 134543819 0 0 4096 16384 0 0 0 17 0 0 0
/proc/1980/statm: 3370 923 189 640 0 2726 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13480

[startup+0.701266 s]
/proc/loadavg: 0.92 0.95 0.97 3/65 1980
/proc/meminfo: memFree=1741320/2055920 swapFree=4192812/4192956
[pid=1980] ppid=1978 vsize=13480 CPUtime=0.68
/proc/1980/stat : 1980 (bsolo) R 1978 1980 1941 0 -1 4194304 1044 0 0 0 68 0 0 0 25 0 1 0 169430133 13803520 930 1992294400 134512640 137136520 4294956256 18446744073709551615 134545039 0 0 4096 16384 0 0 0 17 0 0 0
/proc/1980/statm: 3370 930 189 640 0 2726 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 13480

[startup+1.50134 s]
/proc/loadavg: 0.92 0.95 0.97 2/66 1981
/proc/meminfo: memFree=1738112/2055920 swapFree=4192812/4192956
[pid=1980] ppid=1978 vsize=14124 CPUtime=1.49
/proc/1980/stat : 1980 (bsolo) R 1978 1980 1941 0 -1 4194304 1229 0 0 0 147 2 0 0 25 0 1 0 169430133 14462976 1108 1992294400 134512640 137136520 4294956256 18446744073709551615 134572805 0 0 4096 16384 0 0 0 17 0 0 0
/proc/1980/statm: 3531 1108 198 640 0 2887 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14124

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

[startup+2.30142 s]
/proc/loadavg: 0.92 0.95 0.97 2/66 1981
/proc/meminfo: memFree=1736384/2055920 swapFree=4192812/4192956
[pid=1980] ppid=1978 vsize=15400 CPUtime=2.29
/proc/1980/stat : 1980 (bsolo) R 1978 1980 1941 0 -1 4194304 1547 0 0 0 226 3 0 0 25 0 1 0 169430133 15769600 1426 1992294400 134512640 137136520 4294956256 18446744073709551615 134543760 0 0 4096 16384 0 0 0 17 0 0 0
/proc/1980/statm: 3850 1426 198 640 0 3206 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 15400

[startup+2.50144 s]
/proc/loadavg: 0.92 0.95 0.97 2/66 1981
/proc/meminfo: memFree=1736384/2055920 swapFree=4192812/4192956
[pid=1980] ppid=1978 vsize=15516 CPUtime=2.49
/proc/1980/stat : 1980 (bsolo) R 1978 1980 1941 0 -1 4194304 1577 0 0 0 246 3 0 0 25 0 1 0 169430133 15888384 1456 1992294400 134512640 137136520 4294956256 18446744073709551615 136498219 0 0 4096 16384 0 0 0 17 0 0 0
/proc/1980/statm: 3879 1456 198 640 0 3235 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 15516

Child status: 0
Real time (s): 2.52858
CPU time (s): 2.52461
CPU user time (s): 2.49162
CPU system time (s): 0.032994
CPU usage (%): 99.8432
Max. virtual memory (cumulated for all children) (KiB): 15516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.49162
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1580
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= 20

runsolver used 0.007998 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node8 at 2009-06-16 07:10:37
IDJOB=1877520
IDBENCH=1467
IDSOLVER=699
FILE ID=node8/1877520-1245129037
PBS_JOBID= 9363715
Free space on /tmp= 66316 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-ooo.burch_dill.3.accl.ucl.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877520-1245129037/watcher-1877520-1245129037 -o /tmp/evaluation-result-1877520-1245129037/solver-1877520-1245129037 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877520-1245129037.opb

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

MD5SUM BENCH= 03090e2b7426cc03a4be73b62ee3d658
RANDOM SEED=551896741

node8.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		: 3000.234
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		: 3000.234
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1741736 kB
Buffers:         43972 kB
Cached:         182944 kB
SwapCached:          0 kB
Active:          65380 kB
Inactive:       176284 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1741736 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4448 kB
Writeback:           0 kB
Mapped:          24508 kB
Slab:            58312 kB
Committed_AS:   166504 kB
PageTables:       1376 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= 66312 MiB
End job on node8 at 2009-06-16 07:10:39