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-fpga12_12_sat_pb.cnf.cr.opb
MD5SUM6137fb5f5f5e9a4f9b09d34c8e843809
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 13
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 benchmark0.039993
Number of variables216
Total number of constraints180
Number of constraints which are clauses156
Number of constraints which are cardinality constraints (but not clauses)24
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint6
Maximum length of a constraint12

Trace number 9466

Launcher Data

LAUNCH ON wulflinc27 THE 2005-09-23 14:09:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8231 boxname=wulflinc27 idbench=27 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6137fb5f5f5e9a4f9b09d34c8e843809  /oldhome/oroussel/tmp/wulflinc27/normalized-fpga12_12_sat_pb.cnf.cr.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-fpga12_12_sat_pb.cnf.cr.opb
IDLAUNCH: 8231
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.039
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		: 451.039
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:        944712 kB
Buffers:         10644 kB
Cached:          62592 kB
SwapCached:          0 kB
Active:          44768 kB
Inactive:        31272 kB
HighTotal:      131008 kB
HighFree:        64092 kB
LowTotal:       903652 kB
LowFree:        880620 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8340 kB
Committed_AS:    63656 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 14:09:44 (client local time) WITH STATUS 10 IN 1.14082 SECONDS
stats: 8231 0 1.14082 10

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
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 -v22 -v23 -v24 -v25 -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

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/6648/stat): 6648 (pb2sat) R 6647 6648 4005 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 20759469 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/6648/statm): 373 2 364 364 0 9 0
[pid=6648] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc27/normalized-fpga12_12_sat_pb.cnf.cr.opb
One traced child (pid=6648) exited with status: 10
All traced children have exited ! Game is over.

Child status: 10
Real time (s): 1.23123
CPU time (s): 1.14082
CPU user time (s): 1.09283
CPU system time (s): 0.047992
CPU usage (%): 92.6576
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	0