PB'05 competition: run trace

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/web/www.ps.uni-sb.de/~walser/benchmarks/course-ass/normalized-ss97-6.opb
MD5SUM	5d90b7cbb5bac2aa14257b9c5448f25d
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	304
Optimality of the best value was proved	NO
Number of terms in the objective function	173
Biggest coefficient in the objective function	100
Number of bits for the biggest coefficient in the objective function	7
Sum of the numbers in the objective function	8448
Number of bits of the sum of numbers in the objective function	14
Biggest number in a constraint	100
Number of bits of the biggest number in a constraint	7
Biggest sum of numbers in a constraint	8448
Number of bits of the biggest sum of numbers	14
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.05184
Number of variables	257
Total number of constraints	353
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	353
Number of constraints which are nor clauses,nor cardinality constraints	0
Minimum length of a constraint	1
Maximum length of a constraint	44

Trace number 42233

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 04:00:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25454 boxname=wulflinc4 idbench=356 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5d90b7cbb5bac2aa14257b9c5448f25d  /oldhome/oroussel/tmp/wulflinc4/normalized-ss97-6.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-ss97-6.opb
IDLAUNCH: 25454
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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:        738672 kB
Buffers:         33968 kB
Cached:         240216 kB
SwapCached:        944 kB
Active:          44020 kB
Inactive:       232276 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        738420 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            13924 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 04:00:47 (client local time) WITH STATUS 30 IN 6.64999 SECONDS
stats: 25454 0 6.64999 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 2825
c small objective detected
c CONFLICT during preprocess 
c [startup+1.39968 s]  setting bit 13 to 0
c CONFLICT during preprocess 
c [startup+1.49607 s]  setting bit 12 to 0
c got solution with objective value: 702
c [startup+2.70377 s]  setting bit 11 to 1
c CONFLICT during preprocess 
c [startup+2.8 s]  setting bit 10 to 0
c [startup+2.91297 s]  setting bit 9 to 0
c got solution with objective value: 498
c [startup+3.12794 s]  setting bit 8 to 1
c [startup+4.80381 s]  setting bit 7 to 0
c got solution with objective value: 399
c [startup+4.9901 s]  setting bit 6 to 1
c got solution with objective value: 398
c [startup+5.16251 s]  setting bit 5 to 1
c got solution with objective value: 397
c [startup+5.33342 s]  setting bit 4 to 1
c got solution with objective value: 397
c [startup+5.50309 s]  setting bit 3 to 1
c got solution with objective value: 396
c [startup+5.68378 s]  setting bit 2 to 1
c got solution with objective value: 394
c [startup+5.94425 s]  setting bit 1 to 1
c got solution with objective value: 393
c [startup+6.53708 s]  setting bit 0 to 1
s OPTIMUM FOUND
v one -v1 -v10 -v100 -v101 -v102 -v103 -v104 -v105 -v106 -v107 -v108 -v109 -v11 -v110 v111 -v112 -v113 -v114 -v115 -v116 v117 v118 -v119 v12 v120 v121 -v122 -v123 v124 -v125 v126 -v127 -v128 v129 v13 v130 v131 v132 v133 -v134 -v135 -v136 -v137 v138 -v139 -v14 -v140 -v141 v142 -v143 -v144 -v145 -v146 -v147 v148 -v149 -v15 v150 -v151 v152 v153 v154 -v155 -v156 -v157 -v158 -v159 -v16 -v160 -v161 -v162 v163 -v164 -v165 v166 v167 -v168 -v169 -v17 -v170 v171 -v172 -v173 -v174 -v175 -v176 v177 -v178 v179 -v18 v180 v181 v182 v183 -v184 v185 -v186 v187 v188 -v189 v19 -v190 -v191 v192 v193 v194 v195 -v196 -v197 -v198 -v199 v2 -v20 v200 -v201 -v202 -v203 v204 v205 -v206 v207 -v208 -v209 -v21 -v210 v211 v212 v213 v214 v215 -v216 -v217 v218 -v219 -v22 -v220 -v221 -v222 -v223 v224 -v225 v226 -v227 -v228 v229 -v23 v230 v231 -v232 -v233 -v234 -v235 v236 v237 v238 v239 -v24 -v240 v241 v242 v243 -v244 -v245 v246 -v247 v248 v249 -v25 v250 -v251 -v252 -v253 -v254 -v255 v256 v26 -v27 -v28 -v29 v3 -v30 -v31 -v32 -v33 -v34 -v35 -v36 v37 -v38 -v39 -v4 v40 -v41 -v42 -v43 -v44 -v45 -v46 -v47 v48 -v49 v5 -v50 -v51 -v52 -v53 -v54 -v55 -v56 -v57 v58 v59 -v6 -v60 v61 -v62 -v63 -v64 -v65 -v66 -v67 v68 v69 v7 -v70 v71 v72 -v73 -v74 -v75 -v76 -v77 -v78 -v79 v8 -v80 -v81 -v82 -v83 -v84 -v85 -v86 -v87 -v88 -v89 v9 -v90 -v91 -v92 -v93 -v94 -v95 -v96 -v97 -v98 v99 
#### 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): 0.84 0.94 0.90 1/54 20399
Raw data (stat): 20399 (runsolver) R 20398 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 967707489 884736 94 4294967295 134512640 135332820 3221224480 3221219660 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+6.65669 s]
Raw data (loadavg): 0.85 0.94 0.90 1/53 20399
Raw data (stat): 20399 (runsolver) R 20398 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 967707489 884736 94 4294967295 134512640 135332820 3221224480 3221219660 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 30
Real time (s): 6.65648
CPU time (s): 6.64999
CPU user time (s): 6.51801
CPU system time (s): 0.131979
CPU usage (%): 99.9025
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	304
#### END VERIFIER DATA ####