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:
-
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.
-
SOLVER DATA
This is the output of the solver (stdout and stderr).
-
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.
-
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
| Name | normalized-opb/submitted/manquinho/primes-dimacs-cnf/normalized-ii32b2.opb |
| MD5SUM | 4c322f6b4009d273fbdff10efcd1c54f |
| Bench Category | optimization, small integers (OPTSMALLINT) |
| Has Objective Function | YES |
| Satisfiable | YES |
| (Un)Satisfiability was proved | YES |
| Best value of the objective function | 244 |
| Optimality of the best value was proved | NO |
| Number of terms in the objective function | 522 |
| 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 | 522 |
| Number of bits of the sum of numbers in the objective function | 10 |
| Biggest number in a constraint | 1 |
| Number of bits of the biggest number in a constraint | 1 |
| Biggest sum of numbers in a constraint | 522 |
| Number of bits of the biggest sum of numbers | 10 |
| Best result obtained on this benchmark | SAT |
| Best CPU time to get the best result obtained on this benchmark | 1.03184 |
| Number of variables | 522 |
| Total number of constraints | 2819 |
| Number of constraints which are clauses | 2819 |
| Number of constraints which are cardinality constraints (but not clauses) | 0 |
| Number of constraints which are nor clauses,nor cardinality constraints | 0 |
| Minimum length of a constraint | 2 |
| Maximum length of a constraint | 32 |
Trace number 33588
#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc20 THE 2005-05-27 14:55:45 (client local time)
PB2005-SCRIPT v4.0
MARKUPS: idlaunch=1331 boxname=wulflinc20 idbench=148 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322 /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH: 4c322f6b4009d273fbdff10efcd1c54f /oldhome/oroussel/tmp/wulflinc20/normalized-ii32b2.opb
REAL COMMAND: vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc20/normalized-ii32b2.opb 0
IDLAUNCH: 1331
/proc/cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 3
cpu MHz : 451.215
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 : 451.215
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: 732720 kB
Buffers: 34176 kB
Cached: 245732 kB
SwapCached: 728 kB
Active: 55916 kB
Inactive: 226112 kB
HighTotal: 131008 kB
HighFree: 252 kB
LowTotal: 903652 kB
LowFree: 732468 kB
SwapTotal: 2097892 kB
SwapFree: 2096304 kB
Dirty: 432 kB
Writeback: 0 kB
Mapped: 5084 kB
Slab: 14376 kB
Committed_AS: 63600 kB
PageTables: 316 kB
VmallocTotal: 114680 kB
VmallocUsed: 1368 kB
VmallocChunk: 113252 kB
JOB ENDED THE 2005-05-27 14:56:23 (client local time) WITH STATUS 30 IN 37.2413 SECONDS
stats: 1331 0 37.2413 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
seed: 0
Nr of vars set: 0 (#equs: 0)
Nr of vars set: 0 (#equs: 0)
#decisions: 874; #end-nodes: 608;
#proof improvement attempts: 0; #restarts: 2
Current batch, end-nodes: 303 / 774 (80)
#axs: 2820, #non-axs: 230
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
result: model found (1)
Model found with constant: 266 (255:>=*);
#decisions: 29; #end-nodes: 4;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 4 / 80 (80)
#axs: 2820, #non-axs: 230
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 267 (254:>=*);
#decisions: 88; #end-nodes: 28;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 28 / 96 (80)
#axs: 2820, #non-axs: 230
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 275 (246:>=*);
#decisions: 31; #end-nodes: 1;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 1 / 80 (80)
#axs: 2820, #non-axs: 230
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 276 (245:>=*);
#decisions: 106; #end-nodes: 60;
#proof improvement attempts: 0; #restarts: 0
Current batch, end-nodes: 60 / 80 (80)
#axs: 2820, #non-axs: 230
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 277 (244:>=*);
#decisions: 87236; #end-nodes: 58915;
#proof improvement attempts: 0; #restarts: 27
Current batch, end-nodes: 1312 / 1818 (86)
#axs: 2820, #non-axs: 7054
tight: meta-meta: start: 6, end: 9; meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant:
(pushed:) 277 (244:>=*)
With an increment of the last pushed constant, a proof of false was found.
result: proof of false found (0)
seed: 0
Nr of vars set: 494 (#equs: 0)
Time taken in seconds: 36
times:
0m0.016s 0m0.011s
0m36.510s 0m0.460s
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 x408 -x409 x410 x411 -x412 -x413 x414 x415 -x416 -x417 x418 -x419 x420 -x421 x422 x423 -x424 -x425 x426 -x427 x428 x429 -x430 -x431 x432 -x433 x434 x435 -x436 -x437 x438 -x439 x440 -x441 x442 x443 -x444 -x445 x446 -x447 x448 x449 -x450 -x451 x452 x453 -x454 -x455 x456 -x457 x458 -x459 -x460 x461 -x462 -x463 x464 x465 -x466 -x467 x468 -x469 x470 x471 -x472 -x473 x474 -x475 x476 x477 -x478 -x479 x480 -x481 x482 x483 -x484 -x485 x486 -x487 x488 x489 -x490 -x491 x492 -x493 x494 -x495 x496 x497 -x498 -x499 x500 -x501 x502 x503 -x504 -x505 x506 x507 -x508 -x509 x510 -x511 x512 -x513 x514 x515 -x516 x517 -x518 -x519 x520 -x521 x522
s OPTIMUM FOUND
#### 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.91 0.95 0.88 2/54 1363
Raw data (stat): 1363 (runsolver) R 1362 25399 25398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 857046562 884736 94 4294967295 134512640 135332820 3221224464 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0006 s]
Raw data (loadavg): 0.93 0.95 0.88 2/55 1366
Raw data (stat): 1363 (vallstSAT2005PB) S 1362 25399 25398 0 -1 0 321 232 0 0 0 1 0 0 19 0 1 0 857046562 2179072 242 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+20.0013 s]
Raw data (loadavg): 1.02 0.97 0.88 2/55 1366
Raw data (stat): 1363 (vallstSAT2005PB) S 1362 25399 25398 0 -1 0 321 232 0 0 0 1 0 0 19 0 1 0 857046562 2179072 242 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+30.0007 s]
Raw data (loadavg): 1.02 0.97 0.89 2/55 1366
Raw data (stat): 1363 (vallstSAT2005PB) S 1362 25399 25398 0 -1 0 321 232 0 0 0 1 0 0 19 0 1 0 857046562 2179072 242 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+37.6012 s]
Raw data (loadavg): 1.01 0.97 0.89 1/53 1376
Raw data (stat): 1363 (vallstSAT2005PB) S 1362 25399 25398 0 -1 0 321 232 0 0 0 1 0 0 19 0 1 0 857046562 2179072 242 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 0
Child status: 30
Real time (s): 37.6009
CPU time (s): 37.2413
CPU user time (s): 36.6924
CPU system time (s): 0.548916
CPU usage (%): 99.0437
Max. virtual memory (Kb): 2128
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier: OK 244
#### END VERIFIER DATA ####