Trace number 1878195

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 clOPT-12 0.504923 0.504369

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_10_1.opb
MD5SUM85943b997cdad21dc5e2becf1aafbf8b
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-12
Best CPU time to get the best result obtained on this benchmark0.102984
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -12
Optimality of the best value was proved YES
Number of variables50
Total number of constraints50
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints50
Minimum length of a constraint10
Maximum length of a constraint18
Number of terms in the objective function 50
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 50
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)610
Sum of products size (including duplicates)1220
Number of different products305
Sum of products size610

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: Clause 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-1878195-1245199290.opb
0.00/0.00	c File size is 23853 bytes.
0.00/0.00	c Highest Coefficient sum: 50
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.003 s
0.00/0.00	c Var: 355 Constr: 710 355/50/305 Lit: 3050 Watch. Lit: 2135
0.00/0.00	c Obj. Vars: 50 (14.0845 % of total variables)
0.00/0.00	c Pre-processing Time: 0.006 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0     50      305      915    3      610     101      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
0.00/0.00	o -10
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0     50      306      965    3      622     284      1      0 0.01
0.00/0.01	c      100     50      406     4569   11      822     313    101  10000 0.01
0.00/0.01	o -11
0.05/0.08	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.05/0.08	c      101     50      408     4656   11      837     301    103   9181 0.01
0.05/0.08	c      202     50      509     8216   16     1039     332    204  12625 0.02
0.05/0.08	c      452     50      759    17040   22     1539     366    454  14125 0.03
0.05/0.08	c      927     50      715    15106   21     1441     403    410  14714 0.06
0.05/0.08	o -12
0.50/0.50	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.50/0.50	c     1201     50      990    24740   24     2003     318    685  14827 0.08
0.50/0.50	c     1301     50      565     9894   17     1142     350    260  14954 0.09
0.50/0.50	c     1551     50      815    18315   22     1642     386    510  15510 0.10
0.50/0.50	c     2026     50      767    16505   21     1546     425    462  15465 0.13
0.50/0.50	c     2839     48      521     7642   14     1052     468    216  14709 0.19
0.50/0.50	c     4159     46      725    13285   18     1458     515    420  14696 0.28
0.50/0.50	c     6240     40     1085    20780   19     2172     567    780  14246 0.44
0.50/0.50	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 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x190 -x191 -x192 -x193 -x194 -x195 -x196 -x197 -x198 -x199 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209 -x210 -x211 -x212 -x213 -x214 -x215 -x216 -x217 -x218 -x219 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x230 -x231 -x232 -x233 -x234 -x235 -x236 -x237 -x238 -x239 -x240 -x241 -x242 -x243 -x244 -x245 -x246 -x247 -x248 -x249 -x250 -x251 -x252 -x253 -x254 -x255 -x256 -x257 -x258 -x259 -x260 -x261 -x262 -x263 -x264 -x265 -x266 -x267 -x268 -x269 -x270 -x271 -x272 -x273 -x274 -x275 -x276 -x277 -x278 -x279 -x280 -x281 -x282 -x283 -x284 -x285 -x286 -x287 -x288 -x289 -x290 -x291 -x292 -x293 -x294 -x295 -x296 -x297 -x298 -x299 -x300 -x301 -x302 -x303 -x304 -x305 -x306 -x307 -x308 -x309 -x310 -x311 -x312 -x313 -x314 -x315 -x316 -x317 -x318 -x319 -x320 -x321 -x322 -x323 -x324 -x325 -x326 -x327 -x328 -x329 -x330 -x331 -x332 -x333 -x334 -x335 -x336 -x337 -x338 -x339 -x340 -x341 -x342 -x343 -x344 -x345 -x346 -x347 -x348 -x349 -x350 -x351 -x352 -x353 -x354 -x355 
0.50/0.50	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.50/0.50	c   13     7049    239     7377      699     6945    394  14041 0.50
0.50/0.50	c Objective: -12
0.50/0.50	s OPTIMUM FOUND
0.50/0.50	c Total time: 0.502 s

Verifier Data 

OK	-12

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1878195-1245199290/watcher-1878195-1245199290 -o /tmp/evaluation-result-1878195-1245199290/solver-1878195-1245199290 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1878195-1245199290.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 0.99 3/64 6523
/proc/meminfo: memFree=1859928/2055920 swapFree=4182468/4192956
[pid=6523] ppid=6521 vsize=10708 CPUtime=0
/proc/6523/stat : 6523 (bsolo) R 6521 6523 6220 0 -1 4194304 282 0 0 0 0 0 0 0 18 0 1 0 187528906 10964992 260 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 0 0 0
/proc/6523/statm: 2677 261 187 640 0 2033 0

[startup+0.059348 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 6523
/proc/meminfo: memFree=1859928/2055920 swapFree=4182468/4192956
[pid=6523] ppid=6521 vsize=11104 CPUtime=0.05
/proc/6523/stat : 6523 (bsolo) R 6521 6523 6220 0 -1 4194304 380 0 0 0 5 0 0 0 18 0 1 0 187528906 11370496 358 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/6523/statm: 2776 358 197 640 0 2132 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 11104

[startup+0.102354 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 6523
/proc/meminfo: memFree=1859928/2055920 swapFree=4182468/4192956
[pid=6523] ppid=6521 vsize=11104 CPUtime=0.1
/proc/6523/stat : 6523 (bsolo) R 6521 6523 6220 0 -1 4194304 380 0 0 0 10 0 0 0 18 0 1 0 187528906 11370496 358 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/6523/statm: 2776 358 197 640 0 2132 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 11104

[startup+0.302375 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 6523
/proc/meminfo: memFree=1859928/2055920 swapFree=4182468/4192956
[pid=6523] ppid=6521 vsize=11104 CPUtime=0.29
/proc/6523/stat : 6523 (bsolo) R 6521 6523 6220 0 -1 4194304 384 0 0 0 29 0 0 0 19 0 1 0 187528906 11370496 362 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/6523/statm: 2776 362 197 640 0 2132 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11104

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

[startup+0.502399 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 6523
/proc/meminfo: memFree=1859928/2055920 swapFree=4182468/4192956
[pid=6523] ppid=6521 vsize=11104 CPUtime=0.5
/proc/6523/stat : 6523 (bsolo) R 6521 6523 6220 0 -1 4194304 385 0 0 0 49 1 0 0 21 0 1 0 187528906 11370496 363 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/6523/statm: 2776 363 197 640 0 2132 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 11104

Child status: 0
Real time (s): 0.504369
CPU time (s): 0.504923
CPU user time (s): 0.492925
CPU system time (s): 0.011998
CPU usage (%): 100.11
Max. virtual memory (cumulated for all children) (KiB): 11104

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.492925
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 387
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= 2

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node23 at 2009-06-17 02:41:30
IDJOB=1878195
IDBENCH=48175
IDSOLVER=700
FILE ID=node23/1878195-1245199290
PBS_JOBID= 9368300
Free space on /tmp= 66272 MiB

SOLVER NAME= bsolo 3.1 cl
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_10_1.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1878195-1245199290/watcher-1878195-1245199290 -o /tmp/evaluation-result-1878195-1245199290/solver-1878195-1245199290 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1878195-1245199290.opb

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

MD5SUM BENCH= 85943b997cdad21dc5e2becf1aafbf8b
RANDOM SEED=1138468570

node23.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		: 3000.236
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		: 3000.236
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:       1860472 kB
Buffers:         48580 kB
Cached:          84680 kB
SwapCached:       4304 kB
Active:          67280 kB
Inactive:        73860 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1860472 kB
SwapTotal:     4192956 kB
SwapFree:      4182468 kB
Dirty:            3952 kB
Writeback:           0 kB
Mapped:          14576 kB
Slab:            40368 kB
Committed_AS:   167616 kB
PageTables:       1392 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-1878195-1245199290.opb

Free space on /tmp at the end= 66268 MiB
End job on node23 at 2009-06-17 02:41:31