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/aloul/FPGA_SAT05/normalized-fpga13_13_sat_pb.cnf.cr.opb
MD5SUM477af24fc30fd084c6281beb06bd14f4
Bench Categoryno optimization function (SAT)
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 14
Number of bits of the biggest sum of numbers4
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.047992
Number of variables254
Total number of constraints208
Number of constraints which are clauses182
Number of constraints which are cardinality constraints (but not clauses)26
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint6
Maximum length of a constraint13

Trace number 882

Launcher Data

LAUNCH ON wulflinc26 THE 2005-09-18 12:50:50 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=3546 boxname=wulflinc26 idbench=30 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  477af24fc30fd084c6281beb06bd14f4  /oldhome/oroussel/tmp/wulflinc26/normalized-fpga13_13_sat_pb.cnf.cr.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc26/normalized-fpga13_13_sat_pb.cnf.cr.opb
IDLAUNCH: 3546
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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		: 451.061
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:        940124 kB
Buffers:         34928 kB
Cached:          32340 kB
SwapCached:        868 kB
Active:          57240 kB
Inactive:        12652 kB
HighTotal:      131008 kB
HighFree:        95956 kB
LowTotal:       903652 kB
LowFree:        844168 kB
SwapTotal:     2097892 kB
SwapFree:      2096540 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5696 kB
Slab:            18948 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 12:51:05 (client local time) WITH STATUS 10 IN 14.7168 SECONDS
stats: 3546 0 14.7168 10

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc26/normalized-fpga13_13_sat_pb.cnf.cr.opb ......
c 6884Verifying Solution successful.
c PB Clauses are true, Verifying PB solution successful.
s SATISFIABLE
v -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 -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 
c Done, CPU Time=14.6658

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/20837/stat): 20837 (PBS4) R 20836 20837 16528 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1841401340 978944 2 4294967295 134512640 135450776 3221224560 3221224560 134512960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/20837/statm): 239 2 232 232 0 7 0
[pid=20837] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc26/normalized-fpga13_13_sat_pb.cnf.cr.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc26/normalized-fpga13_13_sat_pb.cnf.cr.opb

[startup+10.0026 s]
Raw data (loadavg): 0.66 0.80 0.91 2/56 20837
Raw data (/proc/20837/stat): 20837 (PBS4) R 20836 20837 16528 0 -1 0 1091 0 0 0 966 15 0 0 25 0 1 0 1841401340 6238208 1074 4294967295 134512640 135450776 3221224560 3221222928 134603256 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/20837/statm): 1523 1074 232 232 0 1291 0
[pid=20837] vsize: 6092
Current children cumulated CPU time (s) 9.81
Current children cumulated vsize (Kb) 6092
One traced child (pid=20837) exited with status: 10
All traced children have exited ! Game is over.

Child status: 10
Real time (s): 14.9633
CPU time (s): 14.7168
CPU user time (s): 14.5248
CPU system time (s): 0.19197
CPU usage (%): 98.3524
Max. virtual memory (cumulated for all children) (Kb): 6092

Verifier Data

Verifier:	OK	0