Trace number 1879734

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 NameAnswerobjCPU timeWall clock time
bsolo 3.1 pbOPT5852 0.021995 0.0222209

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-LIN/submittedPB07/
poldner/PB/testset/normalized-8_16.opb
MD5SUMa50db2fb26a0b36972cba004cae6f3a3
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark5852
Best CPU time to get the best result obtained on this benchmark0.020996
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 5852
Optimality of the best value was proved YES
Number of variables136
Total number of constraints144
Number of constraints which are clauses128
Number of constraints which are cardinality constraints (but not clauses)16
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint8
Number of terms in the objective function 136
Biggest coefficient in the objective function 1311
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 58669
Number of bits of the sum of numbers in the objective function 16
Biggest number in a constraint 1311
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 58669
Number of bits of the biggest sum of numbers16
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

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-1879734-1245241734.opb
0.00/0.00	c File size is 5303 bytes.
0.00/0.00	c Highest Coefficient sum: 58669
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.001 s
0.00/0.00	c Var: 136 Constr: 160 144/16/0 Lit: 512 Watch. Lit: 416
0.00/0.00	c Obj. Vars: 136 (100 % of total variables)
0.00/0.00	c Pre-processing Time: 0.001 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    136      160      512    3      416     346      0      0 0.00
0.00/0.00	c Initial Lower Bound: 5763
0.00/0.00	c Initial Path Cost: 0
0.00/0.00	o 7664
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    136      161      648    4      537     618      1      0 0.01
0.00/0.01	o 6160
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    136      162      784    4      647     890      2      0 0.01
0.00/0.01	o 5852
0.00/0.02	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.02	c        0    136      163      920    5      759    1162      3      0 0.01
0.00/0.02	v -x1 -x2 -x3 -x4 -x5 -x6 -x7 x8 -x9 -x10 -x11 -x12 -x13 -x14 x15 -x16 -x17 -x18 x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 x27 -x28 -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 x40 -x41 -x42 x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 x56 -x57 -x58 x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 x72 -x73 -x74 -x75 -x76 -x77 -x78 x79 -x80 -x81 -x82 x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 x96 -x97 -x98 -x99 -x100 -x101 -x102 x103 -x104 -x105 -x106 x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 x123 -x124 -x125 -x126 -x127 -x128 -x129 -x130 x131 -x132 -x133 -x134 x135 x136 
0.00/0.02	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.00/0.02	c    3       10      1       24      193      978     33    500 0.02
0.00/0.02	c Objective: 5852
0.00/0.02	s OPTIMUM FOUND
0.00/0.02	c Total time: 0.02 s

Verifier Data 

OK	5852

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1879734-1245241734/watcher-1879734-1245241734 -o /tmp/evaluation-result-1879734-1245241734/solver-1879734-1245241734 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1879734-1245241734.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 0.99 0.91 3/64 16173
/proc/meminfo: memFree=1827384/2055920 swapFree=4187176/4192956
[pid=16173] ppid=16171 vsize=11212 CPUtime=0
/proc/16173/stat : 16173 (bsolo) R 16171 16173 15972 0 -1 4194304 331 0 0 0 0 0 0 0 18 0 1 0 191770386 11481088 313 1992294400 134512640 137136520 4294956256 18446744073709551615 136698750 0 0 4096 16384 0 0 0 17 1 0 0
/proc/16173/statm: 2803 324 247 640 0 2159 0

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

Child status: 0
Real time (s): 0.0222209
CPU time (s): 0.021995
CPU user time (s): 0.019996
CPU system time (s): 0.001999
CPU usage (%): 98.9834
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.019996
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 592
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= 1

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node45 at 2009-06-17 14:28:54
IDJOB=1879734
IDBENCH=24966
IDSOLVER=701
FILE ID=node45/1879734-1245241734
PBS_JOBID= 9372294
Free space on /tmp= 66172 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-LIN/submittedPB07/poldner/PB/testset/normalized-8_16.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1879734-1245241734/watcher-1879734-1245241734 -o /tmp/evaluation-result-1879734-1245241734/solver-1879734-1245241734 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1879734-1245241734.opb

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

MD5SUM BENCH= a50db2fb26a0b36972cba004cae6f3a3
RANDOM SEED=2088710417

node45.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		: 3000.240
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		: 3000.240
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:       1827800 kB
Buffers:         34376 kB
Cached:         106664 kB
SwapCached:       2100 kB
Active:          36028 kB
Inactive:       115440 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1827800 kB
SwapTotal:     4192956 kB
SwapFree:      4187176 kB
Dirty:            3948 kB
Writeback:           0 kB
Mapped:          18156 kB
Slab:            62672 kB
Committed_AS:   193932 kB
PageTables:       1380 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-1879734-1245241734.opb

Free space on /tmp at the end= 66168 MiB
End job on node45 at 2009-06-17 14:28:54