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 in four parts:
  1. 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 provide some useful information on the computer.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
  3. 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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    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.
  4. 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.

General information on the benchmark

Namenormalized-opb/submitted/manquinho/logic-synthesis/normalized-f51m.b.opb
MD5SUM4fc22abde8250807abd95442a25fac44
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 18
Optimality of the best value was proved NO
Number of terms in the objective function 407
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 407
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 407
Number of bits of the biggest sum of numbers9
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.02684
Number of variables406
Total number of constraints538
Number of constraints which are clauses520
Number of constraints which are cardinality constraints (but not clauses)18
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint123

Trace number 23482

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-04 03:14:09 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=613 boxname=wulflinc31 idbench=69 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  4fc22abde8250807abd95442a25fac44  /oldhome/oroussel/tmp/wulflinc31/normalized-f51m.b.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc31/normalized-f51m.b.opb
IDLAUNCH: 613
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        915672 kB
Buffers:         41296 kB
Cached:          55476 kB
SwapCached:        944 kB
Active:          80420 kB
Inactive:        18848 kB
HighTotal:      131008 kB
HighFree:        74564 kB
LowTotal:       903652 kB
LowFree:        841108 kB
SwapTotal:     2097892 kB
SwapFree:      2096432 kB
Dirty:             604 kB
Writeback:           0 kB
Mapped:           5540 kB
Slab:            14204 kB
Committed_AS:    63656 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-04 03:14:49 (client local time) WITH STATUS 30 IN 39.729 SECONDS
stats: 613 0 39.729 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 407 variables and 520 constraints.
c After prepocess the problem consists of 402 variables and 421 constraints.
c preprocess terminated 1.077 s
c Initial Lower Bound: 16
c Lower Bound Elapsed time: 0.21375
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 18 @ 2.827
s OPTIMUM FOUND
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 -x356 -x357 -x358 -x359 -x360 -x361 -x362 -x363 -x364 -x365 -x366 -x367 -x368 -x369 -x370 -x371 -x372 -x373 -x374 -x375 -x376 -x377 -x378 -x379 -x380 -x381 -x382 -x383 -x384 x385 -x386 -x387 -x388 -x389 -x390 -x391 -x392 -x393 -x394 -x395 -x396 -x397 -x398 -x399 -x400 -x401 -x402 -x403 -x404 -x405 x406 -x407 
c Exit Code: 30
c Total time: 39.695 s
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.92 0.98 0.99 2/54 8320
Raw data (stat): 8320 (runsolver) R 8319 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 654073890 1056768 100 4294967295 134512640 135381576 3221221696 3221216916 135158418 0 2147483391 1 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.0006 s]
Raw data (loadavg): 0.93 0.98 0.99 2/54 8320
Raw data (stat): 8320 (bsolo_lpr) R 8319 7876 7672 0 -1 0 7195 0 0 0 974 22 0 0 25 0 1 0 654073890 7421952 1125 4294967295 134512640 134714508 3221221792 3221220128 1074153782 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 1812 1125 1111 63 0 1749 0
vsize: 7248
[startup+20.0014 s]
Raw data (loadavg): 0.94 0.98 0.99 2/54 8320
Raw data (stat): 8320 (bsolo_lpr) R 8319 7876 7672 0 -1 0 15636 0 0 0 1951 45 0 0 25 0 1 0 654073890 7929856 1249 4294967295 134512640 134714508 3221221792 3221218896 1074138821 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 1936 1249 1111 63 0 1873 0
vsize: 7744
[startup+30.0013 s]
Raw data (loadavg): 0.95 0.98 0.99 2/54 8320
Raw data (stat): 8320 (bsolo_lpr) R 8319 7876 7672 0 -1 0 22901 0 0 0 2929 67 0 0 25 0 1 0 654073890 8138752 1300 4294967295 134512640 134714508 3221221792 3221220128 1074153660 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 1987 1300 1111 63 0 1924 0
vsize: 7948
[startup+39.7616 s]
Raw data (loadavg): 0.96 0.98 0.99 1/53 8320
Raw data (stat): 8320 (bsolo_lpr) R 8319 7876 7672 0 -1 0 22901 0 0 0 2929 67 0 0 25 0 1 0 654073890 8138752 1300 4294967295 134512640 134714508 3221221792 3221220128 1074153660 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 1987 1300 1111 63 0 1924 0
vsize: 0

Child status: 30
Real time (s): 39.7614
CPU time (s): 39.729
CPU user time (s): 38.8011
CPU system time (s): 0.927858
CPU usage (%): 99.9184
Max. virtual memory (Kb): 7948
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	18
#### END VERIFIER DATA ####