Trace number 40843

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 NameAnswerCPU timeWall clock time
PBS 4.1LSAT 29.2166 29.2331

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
prestwich/armies/normalized-army11.17ls.opb
MD5SUMe92d33933b84b1c0ca9ffa19c28f7edc
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.743886
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables370
Total number of constraints557
Number of constraints which are clauses313
Number of constraints which are cardinality constraints (but not clauses)2
Number of constraints which are nor clauses,nor cardinality constraints242
Minimum length of a constraint2
Maximum length of a constraint121
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 17
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 138
Number of bits of the biggest sum of numbers8
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00	c Solving ROOT/tmp/node83/40843-1149206561/instance-40843-1149206561.opb ......
29.22	c done parsing opb.
29.22	s SATISFIABLE
29.22	c Total Run Time					29.2036
29.22	v -x1 x10 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x11 x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118
29.22	v -x119 x12 -x120 -x121 x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x13 x130 -x131 -x132 -x133 -x134 x135 -x136 x137 -x138
29.22	v -x139 -x14 -x140 -x141 -x142 -x143 -x144 -x145 -x146 x147 -x148 -x149 -x15 -x150 -x151 -x152 -x153 -x154 x155 -x156 x157 -x158
29.22	v x159 -x16 -x160 -x161 -x162 -x163 -x164 -x165 -x166 x167 -x168 -x169 -x17 -x170 x171 -x172 -x173 -x174 -x175 -x176 x177 -x178
29.22	v x179 -x18 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x19 -x190 x191 -x192 -x193 -x194 -x195 -x196 -x197
29.22	v -x198 x199 -x2 -x20 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209 -x21 -x210 x211 -x212 x213 -x214 x215 -x216
29.22	v -x217 -x218 -x219 x22 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x23 -x230 -x231 -x232 x233 -x234 x235 -x236
29.22	v x237 -x238 -x239 -x24 -x240 -x241 -x242 x243 -x244 x245 -x246 x247 -x248 x249 -x25 -x250 x251 -x252 x253 -x254 -x255 x256 -x257
29.22	v x258 -x259 -x26 x260 -x261 x262 -x263 x264 -x265 x266 -x267 x268 -x269 -x27 x270 x271 -x272 x273 -x274 x275 -x276 -x277 x278
29.22	v -x279 -x28 x280 -x281 x282 x283 -x284 x285 -x286 x287 -x288 -x289 -x29 x290 -x291 x292 -x293 x294 -x295 x296 -x297 x298 -x299
29.22	v -x3 x30 x300 -x301 x302 -x303 x304 -x305 x306 -x307 -x308 -x309 -x31 -x310 -x311 -x312 -x313 -x314 x315 -x316 x317 -x318 x319
29.22	v x32 -x320 x321 -x322 -x323 x324 -x325 x326 -x327 x328 x329 -x33 -x330 x331 -x332 x333 -x334 -x335 x336 x337 -x338 -x339 x34
29.22	v x340 -x341 x342 -x343 x344 -x345 x346 -x347 -x348 -x349 -x35 -x350 x351 -x352 x353 -x354 x355 -x356 x357 -x358 x359 -x36 -x360
29.22	v x361 -x362 x363 -x364 x365 -x366 x367 -x368 -x369 -x37 x370 -x38 -x39 -x4 -x40 -x41 x42 -x43 x44 -x45 -x46 -x47 -x48 -x49 -x5
29.22	v -x50 -x51 -x52 -x53 x54 -x55 -x56 -x57 -x58 -x59 -x6 -x60 -x61 -x62 -x63 x64 -x65 x66 -x67 -x68 -x69 -x7 -x70 -x71 -x72 -x73 x74
29.22	v -x75 -x76 -x77 -x78 -x79 x8 -x80 -x81 -x82 -x83 -x84 -x85 x86 -x87 -x88 -x89 -x9 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99

Verifier Data (download as text)

OK	0

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/node83/watcher-40843-1149206561 -o ROOT/results/node83/solver-40843-1149206561 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node83/40843-1149206561/instance-40843-1149206561.opb 273189632 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.96 1.01 0.87 4/67 17887
/proc/meminfo: memFree=1637472/2055888 swapFree=4085416/4096564
[pid=17887] ppid=17885 vsize=1400 CPUtime=0
/proc/17887/stat : 17887 (PBS4L) R 17885 17887 17842 0 -1 4194304 148 0 0 0 0 0 0 0 20 0 1 0 186295410 1433600 131 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134536608 0 0 4096 0 0 0 0 17 0 0 0
/proc/17887/statm: 350 131 97 232 0 115 0

[startup+10.0024 s]
/proc/loadavg: 0.97 1.01 0.87 2/67 17887
/proc/meminfo: memFree=1615264/2055888 swapFree=4085416/4096564
[pid=17887] ppid=17885 vsize=40428 CPUtime=9.99
/proc/17887/stat : 17887 (PBS4L) R 17885 17887 17842 0 -1 4194304 5866 0 0 0 993 6 0 0 25 0 1 0 186295410 41398272 5696 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135140097 0 0 4096 0 0 0 0 17 0 0 0
/proc/17887/statm: 10107 5696 105 232 0 9872 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 40428

[startup+20.0084 s]
/proc/loadavg: 0.97 1.01 0.88 2/67 17887
/proc/meminfo: memFree=1612256/2055888 swapFree=4085416/4096564
[pid=17887] ppid=17885 vsize=42904 CPUtime=19.98
/proc/17887/stat : 17887 (PBS4L) R 17885 17887 17842 0 -1 4194304 6817 0 0 0 1990 8 0 0 25 0 1 0 186295410 43933696 6454 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134558830 0 0 4096 0 0 0 0 17 0 0 0
/proc/17887/statm: 10726 6454 105 232 0 10491 0
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 42904

Child status: 0
Real time (s): 29.2331
CPU time (s): 29.2166
CPU user time (s): 29.0936
CPU system time (s): 0.122981
CPU usage (%): 99.9435
Max. virtual memory (cumulated for all children) (Kb): 42904

Launcher Data (download as text)

Begin job on node83 on Fri Jun  2 00:02:41 UTC 2006


FILE ID= 40843-1149206561

PBS_JOBID= 293125

BENCH NAME= ROOT/tmp/node83/40843-1149206561/instance-40843-1149206561.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node83/40843-1149206561/instance-40843-1149206561.opb 273189632
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node83/watcher-40843-1149206561 -o ROOT/results/node83/solver-40843-1149206561 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node83/40843-1149206561/instance-40843-1149206561.opb 273189632

MD5SUM SOLVER= ab46593c31a6a47b9d9920387a00d332
MD5SUM BENCH=  e92d33933b84b1c0ca9ffa19c28f7edc

RANDOM SEED= 273189632


/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		: 3000.265
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	: 6006.16
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		: 3000.265
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	: 5999.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1637744 kB
Buffers:         27148 kB
Cached:         317516 kB
SwapCached:       2884 kB
Active:          84624 kB
Inactive:       269244 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1637744 kB
SwapTotal:     4096564 kB
SwapFree:      4085416 kB
Dirty:             172 kB
Writeback:           0 kB
Mapped:          16884 kB
Slab:            51036 kB
Committed_AS:   184464 kB
PageTables:       1284 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node83 on Fri Jun  2 00:03:10 UTC 2006