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/routing/normalized-s4-4-3-9pb.opb |
| MD5SUM | 7d64f372313e74de659e9e56ab2d9bab |
| Bench Category | optimization, small integers (OPTSMALLINT) |
| Has Objective Function | YES |
| Satisfiable | YES |
| (Un)Satisfiability was proved | YES |
| Best value of the objective function | 68 |
| Optimality of the best value was proved | NO |
| Number of terms in the objective function | 840 |
| 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 | 840 |
| Number of bits of the sum of numbers in the objective function | 10 |
| Biggest number in a constraint | 3 |
| Number of bits of the biggest number in a constraint | 2 |
| Biggest sum of numbers in a constraint | 840 |
| 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 | 1.04684 |
| Number of variables | 840 |
| Total number of constraints | 2526 |
| Number of constraints which are clauses | 2502 |
| Number of constraints which are cardinality constraints (but not clauses) | 24 |
| Number of constraints which are nor clauses,nor cardinality constraints | 0 |
| Minimum length of a constraint | 2 |
| Maximum length of a constraint | 35 |
Trace number 33684
#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc28 THE 2005-05-27 15:36:57 (client local time)
PB2005-SCRIPT v4.0
MARKUPS: idlaunch=2204 boxname=wulflinc28 idbench=245 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322 /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH: 7d64f372313e74de659e9e56ab2d9bab /oldhome/oroussel/tmp/wulflinc28/normalized-s4-4-3-9pb.opb
REAL COMMAND: vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc28/normalized-s4-4-3-9pb.opb 0
IDLAUNCH: 2204
/proc/cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 3
cpu MHz : 451.077
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 : 451.077
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 : 899.07
/proc/meminfo:
MemTotal: 1034660 kB
MemFree: 740048 kB
Buffers: 23608 kB
Cached: 249564 kB
SwapCached: 800 kB
Active: 45220 kB
Inactive: 230336 kB
HighTotal: 131008 kB
HighFree: 252 kB
LowTotal: 903652 kB
LowFree: 739796 kB
SwapTotal: 2097640 kB
SwapFree: 2096144 kB
Dirty: 216 kB
Writeback: 0 kB
Mapped: 5452 kB
Slab: 13472 kB
Committed_AS: 63604 kB
PageTables: 316 kB
VmallocTotal: 114680 kB
VmallocUsed: 1368 kB
VmallocChunk: 113252 kB
JOB ENDED THE 2005-05-27 15:37:36 (client local time) WITH STATUS 30 IN 38.9461 SECONDS
stats: 2204 0 38.9461 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
seed: 0
Nr of vars set: 0 (#equs: 0)
Nr of vars set: 58 (#equs: 168)
#decisions: 35194; #end-nodes: 8841;
#proof improvement attempts: 0; #restarts: 50
Current batch, end-nodes: 367 / 537 (92)
#axs: 2735, #non-axs: 7392
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: 767 (72:>=*);
#decisions: 9389; #end-nodes: 2989;
#proof improvement attempts: 0; #restarts: 8
Current batch, end-nodes: 328 / 582 (82)
#axs: 2735, #non-axs: 10027
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: 769 (70:>=*);
#decisions: 42069; #end-nodes: 18994;
#proof improvement attempts: 0; #restarts: 49
Current batch, end-nodes: 160 / 496 (92)
#axs: 2796, #non-axs: 11786
tight: meta-meta: start: 6, end: 9; meta: start: 9, end (keep): 16
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant: 771 (68:>=*);
#decisions: 37094; #end-nodes: 26191;
#proof improvement attempts: 0; #restarts: 47
Current batch, end-nodes: 1450 / 1985 (91)
#axs: 2832, #non-axs: 10248
tight: meta-meta: start: 6, end: 9; meta: start: 7, end (keep): 12
loose: meta-meta: start: 9, end: 14; meta: start: 30, end (keep): 50
Model found with constant:
(pushed:) 771 (68:>=*)
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: 828 (#equs: 305)
Time taken in seconds: 38
times:
0m0.017s 0m0.010s
0m37.939s 0m0.627s
v -v1 -v2 -v3 -v4 -v5 -v6 -v7 -v8 -v9 -v10 -v11 v12 -v13 -v14 -v15 -v16 -v17 -v18 -v19 -v20 -v21 -v22 v23 v24 -v25 -v26 v27 -v28 -v29 -v30 v31 v32 -v33 -v34 -v35 -v36 -v37 -v38 v39 -v40 -v41 -v42 v43 -v44 -v45 -v46 -v47 -v48 -v49 -v50 -v51 -v52 -v53 -v54 -v55 -v56 -v57 -v58 -v59 -v60 -v61 -v62 -v63 -v64 v65 -v66 -v67 -v68 -v69 -v70 -v71 -v72 v73 v74 v75 -v76 -v77 -v78 -v79 -v80 -v81 -v82 -v83 -v84 -v85 -v86 -v87 -v88 -v89 -v90 -v91 -v92 -v93 -v94 -v95 -v96 -v97 -v98 -v99 -v100 -v101 -v102 -v103 -v104 v105 -v106 -v107 -v108 -v109 -v110 -v111 -v112 -v113 -v114 -v115 v116 -v117 -v118 -v119 -v120 -v121 -v122 -v123 -v124 -v125 -v126 -v127 -v128 -v129 -v130 -v131 -v132 -v133 v134 -v135 -v136 -v137 -v138 -v139 -v140 -v141 -v142 -v143 -v144 -v145 -v146 -v147 -v148 -v149 -v150 -v151 v152 v153 -v154 -v155 -v156 -v157 -v158 -v159 -v160 -v161 -v162 -v163 -v164 -v165 v166 -v167 -v168 v169 -v170 -v171 -v172 -v173 -v174 -v175 -v176 -v177 -v178 -v179 -v180 -v181 v182 -v183 -v184 -v185 v186 -v187 -v188 -v189 v190 -v191 -v192 -v193 -v194 -v195 v196 -v197 -v198 -v199 -v200 -v201 -v202 -v203 -v204 v205 -v206 -v207 -v208 -v209 v210 -v211 -v212 -v213 v214 -v215 -v216 -v217 -v218 -v219 -v220 -v221 -v222 v223 -v224 -v225 -v226 -v227 -v228 -v229 -v230 -v231 -v232 v233 -v234 -v235 -v236 -v237 -v238 -v239 -v240 -v241 -v242 -v243 -v244 -v245 -v246 -v247 -v248 -v249 -v250 -v251 -v252 -v253 -v254 -v255 -v256 -v257 v258 -v259 -v260 -v261 -v262 -v263 -v264 -v265 -v266 -v267 -v268 -v269 -v270 -v271 -v272 -v273 -v274 -v275 -v276 -v277 -v278 -v279 -v280 -v281 -v282 v283 -v284 -v285 -v286 -v287 -v288 -v289 -v290 -v291 v292 v293 -v294 -v295 -v296 -v297 -v298 -v299 -v300 -v301 -v302 -v303 -v304 v305 -v306 -v307 -v308 -v309 -v310 -v311 -v312 -v313 -v314 -v315 -v316 -v317 -v318 -v319 -v320 -v321 -v322 -v323 v324 -v325 -v326 -v327 -v328 -v329 -v330 -v331 -v332 -v333 -v334 -v335 v336 -v337 -v338 v339 -v340 -v341 -v342 -v343 -v344 -v345 -v346 -v347 -v348 -v349 -v350 -v351 -v352 -v353 -v354 -v355 -v356 -v357 -v358 -v359 -v360 -v361 -v362 -v363 -v364 -v365 -v366 -v367 -v368 -v369 -v370 -v371 -v372 -v373 -v374 v375 -v376 -v377 -v378 v379 -v380 -v381 -v382 -v383 -v384 -v385 -v386 -v387 -v388 -v389 -v390 -v391 -v392 -v393 -v394 -v395 -v396 -v397 -v398 -v399 -v400 -v401 -v402 -v403 -v404 v405 -v406 -v407 -v408 -v409 v410 -v411 -v412 -v413 v414 -v415 -v416 -v417 -v418 -v419 v420 -v421 -v422 v423 -v424 -v425 -v426 -v427 v428 -v429 -v430 -v431 v432 -v433 -v434 -v435 -v436 -v437 -v438 -v439 -v440 -v441 -v442 -v443 -v444 -v445 -v446 -v447 -v448 -v449 -v450 -v451 -v452 v453 -v454 -v455 -v456 -v457 -v458 -v459 -v460 -v461 -v462 -v463 -v464 v465 -v466 -v467 -v468 -v469 -v470 -v471 -v472 -v473 -v474 -v475 v476 -v477 -v478 -v479 -v480 -v481 -v482 -v483 v484 -v485 -v486 -v487 -v488 -v489 -v490 -v491 -v492 -v493 v494 -v495 -v496 -v497 -v498 -v499 -v500 -v501 -v502 -v503 -v504 -v505 -v506 -v507 -v508 -v509 -v510 -v511 -v512 -v513 v514 -v515 -v516 -v517 -v518 -v519 -v520 -v521 -v522 -v523 -v524 v525 -v526 -v527 -v528 -v529 -v530 -v531 -v532 -v533 -v534 -v535 -v536 -v537 -v538 v539 -v540 -v541 -v542 -v543 -v544 -v545 -v546 -v547 -v548 -v549 -v550 -v551 -v552 -v553 -v554 -v555 -v556 -v557 -v558 v559 -v560 -v561 -v562 -v563 -v564 -v565 -v566 -v567 -v568 -v569 -v570 -v571 -v572 -v573 -v574 -v575 -v576 v577 v578 -v579 -v580 -v581 -v582 -v583 -v584 -v585 -v586 -v587 -v588 -v589 -v590 -v591 -v592 -v593 -v594 -v595 -v596 -v597 -v598 -v599 -v600 -v601 -v602 -v603 -v604 -v605 -v606 -v607 -v608 -v609 -v610 v611 -v612 -v613 -v614 -v615 -v616 -v617 -v618 -v619 -v620 -v621 -v622 -v623 -v624 -v625 -v626 -v627 -v628 -v629 -v630 -v631 v632 -v633 -v634 -v635 -v636 -v637 -v638 -v639 -v640 -v641 -v642 -v643 -v644 -v645 -v646 v647 -v648 -v649 -v650 -v651 -v652 -v653 -v654 -v655 -v656 -v657 -v658 -v659 -v660 -v661 -v662 -v663 v664 -v665 -v666 -v667 -v668 -v669 -v670 -v671 -v672 -v673 -v674 -v675 -v676 -v677 -v678 -v679 -v680 -v681 v682 v683 -v684 -v685 -v686 -v687 -v688 -v689 -v690 -v691 -v692 -v693 -v694 -v695 -v696 -v697 -v698 -v699 -v700 -v701 -v702 -v703 -v704 -v705 -v706 -v707 -v708 -v709 -v710 -v711 -v712 -v713 -v714 -v715 -v716 -v717 -v718 v719 -v720 -v721 -v722 -v723 -v724 -v725 -v726 -v727 -v728 -v729 v730 -v731 -v732 -v733 -v734 -v735 -v736 -v737 -v738 -v739 -v740 -v741 -v742 -v743 -v744 -v745 -v746 -v747 -v748 -v749 -v750 -v751 -v752 -v753 -v754 -v755 -v756 -v757 -v758 -v759 v760 -v761 -v762 -v763 -v764 -v765 -v766 -v767 -v768 -v769 -v770 -v771 -v772 v773 -v774 -v775 -v776 -v777 -v778 -v779 -v780 -v781 -v782 -v783 -v784 -v785 -v786 -v787 -v788 -v789 -v790 -v791 -v792 -v793 -v794 -v795 -v796 -v797 -v798 -v799 -v800 -v801 -v802 -v803 -v804 -v805 -v806 -v807 v808 -v809 -v810 -v811 -v812 -v813 -v814 -v815 -v816 -v817 -v818 -v819 -v820 v821 -v822 -v823 -v824 -v825 -v826 -v827 -v828 -v829 -v830 -v831 -v832 -v833 -v834 -v835 -v836 -v837 -v838 -v839 -v840
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 0.90 2/54 31811
Raw data (stat): 31811 (runsolver) R 31810 24821 24820 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 857300442 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0013 s]
Raw data (loadavg): 0.93 0.95 0.90 2/55 31814
Raw data (stat): 31811 (vallstSAT2005PB) S 31810 24821 24820 0 -1 0 321 232 0 0 0 0 0 0 19 0 1 0 857300442 2179072 242 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 1132560122 3222414538 0 0 17 1 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+20.0015 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 31814
Raw data (stat): 31811 (vallstSAT2005PB) S 31810 24821 24820 0 -1 0 321 232 0 0 0 0 0 0 19 0 1 0 857300442 2179072 242 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 1132560122 3222414538 0 0 17 1 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+30.0012 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 31814
Raw data (stat): 31811 (vallstSAT2005PB) S 31810 24821 24820 0 -1 0 321 232 0 0 0 0 0 0 19 0 1 0 857300442 2179072 242 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 1132560122 3222414538 0 0 17 1 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+39.3129 s]
Raw data (loadavg): 0.95 0.96 0.91 1/53 31824
Raw data (stat): 31811 (vallstSAT2005PB) S 31810 24821 24820 0 -1 0 321 232 0 0 0 0 0 0 19 0 1 0 857300442 2179072 242 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 1132560122 3222414538 0 0 17 1 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 0
Child status: 30
Real time (s): 39.3126
CPU time (s): 38.9461
CPU user time (s): 38.2012
CPU system time (s): 0.744886
CPU usage (%): 99.0676
Max. virtual memory (Kb): 2128
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier: OK 68
#### END VERIFIER DATA ####