Trace number 2683579

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 NameAnswerobjective functionCPU timeWall clock time
bsolo 3.2 ClUNSAT 0.267959 0.267591

General information on the benchmark

Name/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/random/
rand.biglist/normalized-randa491d5.cudf.paranoid.opb
MD5SUMaec7e1601818e8078cd384d1709eb08b
Bench CategoryOPT-SMALLINT-LIN (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 benchmark0.267958
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables6525
Total number of constraints28432
Number of constraints which are clauses28125
Number of constraints which are cardinality constraints (but not clauses)307
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint553
Number of terms in the objective function 2437
Biggest coefficient in the objective function 1888
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 1042174
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 1888
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 1042174
Number of bits of the biggest sum of numbers20
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 Time Limit set to 1800
0.00/0.00	c Learning Strategy: Clause Learning
0.00/0.00	c Instance file HOME/instance-2683579-1277510789.opb
0.00/0.00	c File size is 903933 bytes.
0.09/0.16	c Highest Coefficient sum: 1.04217e+06
0.09/0.16	c Parsing was ok!!
0.09/0.16	c Total parsing time: 0.162 s
0.09/0.17	c Var: 6525 Constr: 28432 28125/307/0 Lit: 80472 Watch. Lit: 57271
0.09/0.17	c Obj. Vars: 2437 (37.3487 % of total variables)
0.19/0.26	c CONFLICT DETECTED at PROBING!!!
0.19/0.26	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.26	c    0        0      0        0    28432    80472      0      0 0.27
0.19/0.26	s UNSATISFIABLE
0.19/0.26	c Total time: 0.265 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-2683579-1277510789/watcher-2683579-1277510789 -o /tmp/evaluation-result-2683579-1277510789/solver-2683579-1277510789 -C 1800 -W 2000 -M 1800 bsolo_pb10 -t1800 -l1 HOME/instance-2683579-1277510789.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: 1.00 1.00 1.00 3/106 26832
/proc/meminfo: memFree=1761072/2059040 swapFree=4136400/4192956
[pid=26832] ppid=26830 vsize=11816 CPUtime=0
/proc/26832/stat : 26832 (bsolo_pb10) R 26830 26832 26201 0 -1 4202496 357 0 0 0 0 0 0 0 18 0 1 0 124734291 12099584 276 1992294400 134512640 137138936 4291171472 18446744073709551615 134519766 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/26832/statm: 2954 276 176 642 0 2089 0

[startup+0.0122789 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26832
/proc/meminfo: memFree=1761072/2059040 swapFree=4136400/4192956
[pid=26832] ppid=26830 vsize=11956 CPUtime=0.01
/proc/26832/stat : 26832 (bsolo_pb10) R 26830 26832 26201 0 -1 4202496 390 0 0 0 1 0 0 0 18 0 1 0 124734291 12242944 308 1992294400 134512640 137138936 4291171472 18446744073709551615 136577166 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/26832/statm: 2989 308 181 642 0 2124 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 11956

[startup+0.101284 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26832
/proc/meminfo: memFree=1761072/2059040 swapFree=4136400/4192956
[pid=26832] ppid=26830 vsize=13732 CPUtime=0.09
/proc/26832/stat : 26832 (bsolo_pb10) R 26830 26832 26201 0 -1 4202496 953 0 0 0 9 0 0 0 20 0 1 0 124734291 14061568 872 1992294400 134512640 137138936 4291171472 18446744073709551615 136506715 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/26832/statm: 3433 872 298 642 0 2568 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13732

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

[startup+0.201292 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 26832
/proc/meminfo: memFree=1761072/2059040 swapFree=4136400/4192956
[pid=26832] ppid=26830 vsize=16152 CPUtime=0.19
/proc/26832/stat : 26832 (bsolo_pb10) R 26830 26832 26201 0 -1 4202496 1878 0 0 0 19 0 0 0 20 0 1 0 124734291 16539648 1575 1992294400 134512640 137138936 4291171472 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/26832/statm: 4038 1575 184 642 0 3394 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 16152

Child status: 0
Real time (s): 0.267591
CPU time (s): 0.267959
CPU user time (s): 0.254961
CPU system time (s): 0.012998
CPU usage (%): 100.137
Max. virtual memory (cumulated for all children) (KiB): 16152

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.254961
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1880
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= 1
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node026 at 2010-06-26 02:06:29
IDJOB=2683579
IDBENCH=72123
IDSOLVER=1163
FILE ID=node026/2683579-1277510789
PBS_JOBID= 11190637
Free space on /tmp= 62476 MiB

SOLVER NAME= bsolo 3.2 Cl
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/random/rand.biglist/normalized-randa491d5.cudf.paranoid.opb
COMMAND LINE= bsolo_pb10 -tTIMEOUT -l1 BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2683579-1277510789/watcher-2683579-1277510789 -o /tmp/evaluation-result-2683579-1277510789/solver-2683579-1277510789 -C 1800 -W 2000 -M 1800  bsolo_pb10 -t1800 -l1 HOME/instance-2683579-1277510789.opb

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

MD5SUM BENCH= aec7e1601818e8078cd384d1709eb08b
RANDOM SEED=477216394

node026.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.201
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.40
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		: 3000.201
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1761848 kB
Buffers:         54952 kB
Cached:         144296 kB
SwapCached:       9016 kB
Active:          84604 kB
Inactive:       127840 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1761848 kB
SwapTotal:     4192956 kB
SwapFree:      4136400 kB
Dirty:            4812 kB
Writeback:           0 kB
AnonPages:       11732 kB
Mapped:           8420 kB
Slab:            62896 kB
PageTables:       4132 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182404 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-2683579-1277510789.opb

Free space on /tmp at the end= 62472 MiB
End job on node026 at 2010-06-26 02:06:29