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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namesubmitted/manquinho/routing/normalized-s3-3-3-2pb.opb
MD5SUM403e00059390cf58db4a40d0c72aa686
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 36
Optimality of the best value was proved YES
Number of terms in the objective function 264
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 264
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 3
Number of bits of the biggest number in a constraint 2
Biggest sum of numbers in a constraint 264
Number of bits of the biggest sum of numbers9
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.083987
Number of variables264
Total number of constraints712
Number of constraints which are clauses700
Number of constraints which are cardinality constraints (but not clauses)12
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint22

Trace number 242

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-18 09:00:52 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=232 boxname=wulflinc23 idbench=232 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  403e00059390cf58db4a40d0c72aa686  /oldhome/oroussel/tmp/wulflinc23/normalized-s3-3-3-2pb.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc23/normalized-s3-3-3-2pb.opb
IDLAUNCH: 232
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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	: 3
cpu MHz		: 451.037
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:        950288 kB
Buffers:         33804 kB
Cached:          23516 kB
SwapCached:        820 kB
Active:          53264 kB
Inactive:         6708 kB
HighTotal:      131008 kB
HighFree:       104076 kB
LowTotal:       903652 kB
LowFree:        846212 kB
SwapTotal:     2097136 kB
SwapFree:      2095864 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5692 kB
Slab:            18780 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-18 09:00:55 (client local time) WITH STATUS 30 IN 2.96455 SECONDS
stats: 232 0 2.96455 30

Solver Data

c INFO: OSL Context initialized.
c Initial problem consists of 264 variables and 712 constraints.
c No problem reductions applied in OPT. instance.
c	preprocess terminated. Elapsed time: 0.148
c After prepocess the problem consists of 264 variables and 712 constraints.
c Initial Lower Bound: 0
c Restart #1 #Var: 264 #Dec: 373 LB: 0 @ 0.382
c Restart #2 #Var: 264 #Dec: 953 LB: 0 @ 1.028
c Restart #3 #Var: 264 #Dec: 2051 LB: 0 @ 2.116
c NEW SOLUTION FOUND: 36 @ 2.664 @ #Dec. 2469
s OPTIMUM FOUND
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 
c Cost: 36
c Exit Code: 30
c Total time: 2.949 s

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/6131/stat): 6131 (bsolo) R 6130 6131 5299 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1840021098 438272 3 4294967295 134512640 134736556 3221224576 3221224576 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/6131/statm): 107 3 90 68 0 39 0
[pid=6131] vsize: 428
open syscall for file /etc/ld.so.preload
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One traced child (pid=6131) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 3.1065
CPU time (s): 2.96455
CPU user time (s): 2.86856
CPU system time (s): 0.095985
CPU usage (%): 95.4306
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	36