Trace number 41758

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
PBS 4.1LOPT200 0.031994 0.034224

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/
primes-dimacs-cnf/normalized-aim-200-3_4-yes1-2.opb
MD5SUM97853fc7b2835e8ba939012dd0f8e215
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark200
Best CPU time to get the best result obtained on this benchmark0.022995
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 200
Optimality of the best value was proved YES
Number of variables400
Total number of constraints880
Number of constraints which are clauses880
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint3
Number of terms in the objective function 400
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 400
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 400
Number of bits of the biggest sum of numbers9
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	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00	c Solving ROOT/tmp/node42/41758-1149411582/instance-41758-1149411582.opb ......
0.02	c done parsing opb.
0.02	o 200
0.03	o 200
0.03	s OPTIMUM FOUND
0.03	c Total Run Time					0.020996
0.03	v -x1 -x10 -x100 x101 -x102 -x103 x104 -x105 x106 -x107 x108 -x109 x11 x110 -x111 x112 -x113 x114 x115 -x116 x117 -x118 x119 -x12
0.03	v -x120 x121 -x122 -x123 x124 -x125 x126 x127 -x128 -x129 -x13 x130 -x131 x132 -x133 x134 -x135 x136 x137 -x138 x139 x14 -x140
0.03	v -x141 x142 x143 -x144 -x145 x146 x147 -x148 -x149 x15 x150 x151 -x152 x153 -x154 x155 -x156 -x157 x158 x159 -x16 -x160 -x161
0.03	v x162 -x163 x164 x165 -x166 -x167 x168 -x169 x17 x170 -x171 x172 -x173 x174 -x175 x176 x177 -x178 -x179 -x18 x180 -x181 x182
0.03	v x183 -x184 x185 -x186 -x187 x188 -x189 -x19 x190 x191 -x192 x193 -x194 -x195 x196 -x197 x198 -x199 x2 x20 x200 -x201 x202 -x203
0.03	v x204 -x205 x206 -x207 x208 x209 -x21 -x210 x211 -x212 x213 -x214 -x215 x216 x217 -x218 x219 x22 -x220 -x221 x222 x223 -x224
0.03	v x225 -x226 x227 -x228 -x229 -x23 x230 -x231 x232 x233 -x234 -x235 x236 x237 -x238 -x239 x24 x240 -x241 x242 x243 -x244 x245
0.03	v -x246 -x247 x248 -x249 x25 x250 x251 -x252 x253 -x254 -x255 x256 x257 -x258 -x259 -x26 x260 x261 -x262 -x263 x264 -x265 x266
0.03	v -x267 x268 -x269 x27 x270 x271 -x272 x273 -x274 -x275 x276 x277 -x278 -x279 -x28 x280 -x281 x282 -x283 x284 x285 -x286 x287
0.03	v -x288 -x289 -x29 x290 x291 -x292 x293 -x294 x295 -x296 x297 -x298 -x299 x3 x30 x300 -x301 x302 x303 -x304 x305 -x306 x307 -x308
0.03	v x309 x31 -x310 x311 -x312 -x313 x314 x315 -x316 x317 -x318 -x319 -x32 x320 x321 -x322 x323 -x324 -x325 x326 -x327 x328 x329
0.03	v x33 -x330 -x331 x332 x333 -x334 -x335 x336 -x337 x338 -x339 -x34 x340 x341 -x342 -x343 x344 x345 -x346 x347 -x348 -x349 x35
0.03	v x350 x351 -x352 x353 -x354 x355 -x356 x357 -x358 -x359 -x36 x360 -x361 x362 x363 -x364 -x365 x366 x367 -x368 -x369 -x37 x370
0.03	v -x371 x372 -x373 x374 x375 -x376 x377 -x378 -x379 x38 x380 x381 -x382 x383 -x384 -x385 x386 -x387 x388 -x389 x39 x390 x391 -x392
0.03	v x393 -x394 x395 -x396 -x397 x398 x399 -x4 -x40 -x400 x41 -x42 -x43 x44 -x45 x46 x47 -x48 -x49 -x5 x50 x51 -x52 x53 -x54 -x55 x56
0.03	v x57 -x58 x59 x6 -x60 -x61 x62 -x63 x64 x65 -x66 -x67 x68 -x69 -x7 x70 -x71 x72 x73 -x74 -x75 x76 -x77 x78 -x79 x8 x80 x81 -x82 x83
0.03	v -x84 x85 -x86 -x87 x88 -x89 x9 x90 -x91 x92 x93 -x94 -x95 x96 -x97 x98 x99

Verifier Data (download as text)

OK	200

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node42/watcher-41758-1149411582 -o ROOT/results/node42/solver-41758-1149411582 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node42/41758-1149411582/instance-41758-1149411582.opb 878542153 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.91 0.95 0.95 2/64 27915
/proc/meminfo: memFree=1433080/2055920 swapFree=4181444/4192956
[pid=27915] ppid=27913 vsize=1400 CPUtime=0
/proc/27915/stat : 27915 (PBS4L) R 27913 27915 27869 0 -1 4194304 159 0 0 0 0 0 0 0 18 0 1 0 206825308 1433600 141 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134614307 0 0 4096 0 0 0 0 17 1 0 0
/proc/27915/statm: 350 141 99 232 0 115 0

Child status: 0
Real time (s): 0.034224
CPU time (s): 0.031994
CPU user time (s): 0.030995
CPU system time (s): 0.000999
CPU usage (%): 93.4842
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node42 on Sun Jun  4 08:59:42 UTC 2006


FILE ID= 41758-1149411582

PBS_JOBID= 314877

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-aim-200-3_4-yes1-2.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node42/41758-1149411582/instance-41758-1149411582.opb 878542153
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node42/watcher-41758-1149411582 -o ROOT/results/node42/solver-41758-1149411582 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node42/41758-1149411582/instance-41758-1149411582.opb 878542153

MD5SUM SOLVER= ab46593c31a6a47b9d9920387a00d332
MD5SUM BENCH=  97853fc7b2835e8ba939012dd0f8e215

RANDOM SEED= 878542153


/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		: 3000.216
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		: 3000.216
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:       1433288 kB
Buffers:         25592 kB
Cached:         525532 kB
SwapCached:       3212 kB
Active:          99480 kB
Inactive:       460332 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1433288 kB
SwapTotal:     4192956 kB
SwapFree:      4181444 kB
Dirty:             252 kB
Writeback:           0 kB
Mapped:          14932 kB
Slab:            48852 kB
Committed_AS:   383204 kB
PageTables:       1428 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node42 on Sun Jun  4 08:59:42 UTC 2006