Trace number 433683

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 NameAnswerObjective functionCPU timeWall clock time
bsolo 3.0.17OPT8034 0.018996 0.0188741

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-LIN/submittedPB07/
poldner/PB/testset/normalized-10_20.opb
MD5SUMdfa433e4e6a88cd1c776cef0a80ce991
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark8034
Best CPU time to get the best result obtained on this benchmark0.017996
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 8034
Optimality of the best value was proved YES
Number of variables210
Total number of constraints220
Number of constraints which are clauses200
Number of constraints which are cardinality constraints (but not clauses)20
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint10
Number of terms in the objective function 210
Biggest coefficient in the objective function 2937
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 109101
Number of bits of the sum of numbers in the objective function 17
Biggest number in a constraint 2937
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 109101
Number of bits of the biggest sum of numbers17
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 (download as text)

0.00/0.00	c bsolo beta version 3.0.17 - 27/04/2007 : 1600 GMT
0.00/0.00	c Developed by Vasco Manquinho 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 Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/433683-1177961928/instance-433683-1177961928.opb
0.00/0.00	c File size is 8308 bytes.
0.00/0.00	c Highest Coefficient sum: 109101
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.002 s
0.00/0.00	c Var: 210 Constr: 240 220/20/0 Lit: 800 Watch. Lit: 640
0.00/0.00	c Obj. Vars: 210 (100 % of total variables)
0.00/0.00	c Pre-processing Time: 0.004 s
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    210      240      800    3      640     673      0      0 0.00
0.00/0.01	c Initial Lower Bound: 8034
0.00/0.01	c Initial Path Cost: 0
0.00/0.01	o 9519	0.011
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    210      241     1010    4      834    1093      1      0 0.01
0.00/0.01	o 8034	0.012 * 
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    210      242     1220    5     1013    1513      2      0 0.01
0.00/0.01	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
0.00/0.01	v -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
0.00/0.01	v -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
0.00/0.01	v -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 x98 -x99 -x100 x101 -x102 -x103 -x104 -x105 -x106
0.00/0.01	v -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 x118 -x119 -x120 x121 -x122 -x123 -x124 -x125 -x126 -x127
0.00/0.01	v -x128 -x129 -x130 x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 x148
0.00/0.01	v -x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 -x157 x158 -x159 -x160 x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169
0.00/0.01	v -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 x178 -x179 -x180 x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x190
0.00/0.01	v x191 -x192 -x193 -x194 -x195 -x196 -x197 -x198 -x199 -x200 x201 -x202 -x203 -x204 -x205 -x206 -x207 x208 -x209 -x210
0.00/0.01	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.00/0.01	c    2        1      0       12      245     1222      5     76 0.01
0.00/0.01	c Objective: 8034
0.00/0.01	s OPTIMUM FOUND
0.00/0.01	c Total time: 0.013 s

Verifier Data (download as text)

OK	8034

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node43/watcher-433683-1177961928 -o ROOT/results/node43/solver-433683-1177961928 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/433683-1177961928/instance-433683-1177961928.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: 0.91 0.95 0.92 3/77 32750
/proc/meminfo: memFree=1539896/2055920 swapFree=4158592/4192956
[pid=32750] ppid=32748 vsize=11748 CPUtime=0
/proc/32750/stat : 32750 (bsolo3.0.17) R 32748 32750 31607 0 -1 4194304 365 0 0 0 0 0 0 0 18 0 1 0 244104612 12029952 335 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 5166715 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32750/statm: 2937 335 280 324 0 2004 0

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

Child status: 0
Real time (s): 0.0188741
CPU time (s): 0.018996
CPU user time (s): 0.014997
CPU system time (s): 0.003999
CPU usage (%): 100.646
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.014997
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= 690
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= 12
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node43 on Mon Apr 30 19:38:48 UTC 2007

IDJOB= 433683
IDBENCH= 24970
IDSOLVER= 199
FILE ID= node43/433683-1177961928

PBS_JOBID= 4727701

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-LIN/submittedPB07/poldner/PB/testset/normalized-10_20.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/433683-1177961928/instance-433683-1177961928.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-433683-1177961928 -o ROOT/results/node43/solver-433683-1177961928 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/433683-1177961928/instance-433683-1177961928.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  dfa433e4e6a88cd1c776cef0a80ce991

RANDOM SEED= 441221430

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node43.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		: 3000.218
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		: 3000.218
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:       1540304 kB
Buffers:         39004 kB
Cached:         378632 kB
SwapCached:       2808 kB
Active:         253604 kB
Inactive:       188416 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1540304 kB
SwapTotal:     4192956 kB
SwapFree:      4158592 kB
Dirty:            6740 kB
Writeback:           0 kB
Mapped:          32188 kB
Slab:            58988 kB
Committed_AS:  2813320 kB
PageTables:       1900 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= 66558 MiB

End job on node43 on Mon Apr 30 19:38:48 UTC 2007