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_11_sat_pb.cnf.cr.opb
MD5SUM2acc4f964e1e6f176bb0ec9705d398d2
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 benchmark0.035994
Number of variables198
Total number of constraints166
Number of constraints which are clauses143
Number of constraints which are cardinality constraints (but not clauses)23
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint6
Maximum length of a constraint12

Trace number 878

Launcher Data

LAUNCH ON wulflinc26 THE 2005-09-18 12:50:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=3542 boxname=wulflinc26 idbench=26 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  2acc4f964e1e6f176bb0ec9705d398d2  /oldhome/oroussel/tmp/wulflinc26/normalized-fpga12_11_sat_pb.cnf.cr.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc26/normalized-fpga12_11_sat_pb.cnf.cr.opb
IDLAUNCH: 3542
/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:        940228 kB
Buffers:         34912 kB
Cached:          32356 kB
SwapCached:        868 kB
Active:          57236 kB
Inactive:        12632 kB
HighTotal:      131008 kB
HighFree:        95956 kB
LowTotal:       903652 kB
LowFree:        844272 kB
SwapTotal:     2097892 kB
SwapFree:      2096540 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5696 kB
Slab:            18920 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 12:50:44 (client local time) WITH STATUS 10 IN 14.2608 SECONDS
stats: 3542 0 14.2608 10

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc26/normalized-fpga12_11_sat_pb.cnf.cr.opb ......
c 7134Verifying 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 -v2 -v20 -v21 -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 
c Done, CPU Time=14.2128

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/20741/stat): 20741 (PBS4) R 20740 20741 16528 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1841399248 978944 2 4294967295 134512640 135450776 3221224560 3221224560 134512960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/20741/statm): 239 2 232 232 0 7 0
[pid=20741] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc26/normalized-fpga12_11_sat_pb.cnf.cr.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc26/normalized-fpga12_11_sat_pb.cnf.cr.opb

[startup+10.0024 s]
Raw data (loadavg): 0.63 0.80 0.91 2/56 20741
Raw data (/proc/20741/stat): 20741 (PBS4) R 20740 20741 16528 0 -1 0 1105 0 0 0 966 14 0 0 25 0 1 0 1841399248 6225920 1088 4294967295 134512640 135450776 3221224560 3221223280 134539515 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/20741/statm): 1520 1088 232 232 0 1288 0
[pid=20741] vsize: 6080
Current children cumulated CPU time (s) 9.8
Current children cumulated vsize (Kb) 6080
One traced child (pid=20741) exited with status: 10
All traced children have exited ! Game is over.

Child status: 10
Real time (s): 14.5343
CPU time (s): 14.2608
CPU user time (s): 14.0659
CPU system time (s): 0.19497
CPU usage (%): 98.1184
Max. virtual memory (cumulated for all children) (Kb): 6080

Verifier Data

Verifier:	OK	0