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-fpga11_10_sat_pb.cnf.cr.opb
MD5SUMe95696bbb09fe4b39809de76f67becbf
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 12
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 benchmark0.031994
Number of variables165
Total number of constraints141
Number of constraints which are clauses120
Number of constraints which are cardinality constraints (but not clauses)21
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint5
Maximum length of a constraint11

Trace number 9494

Launcher Data

LAUNCH ON wulflinc11 THE 2005-09-23 14:17:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8259 boxname=wulflinc11 idbench=55 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  e95696bbb09fe4b39809de76f67becbf  /oldhome/oroussel/tmp/wulflinc11/normalized-fpga11_10_sat_pb.cnf.cr.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-fpga11_10_sat_pb.cnf.cr.opb
IDLAUNCH: 8259
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.045
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	: 2
cpu MHz		: 451.045
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:        913168 kB
Buffers:         14056 kB
Cached:          82028 kB
SwapCached:          0 kB
Active:          61596 kB
Inactive:        43956 kB
HighTotal:      131008 kB
HighFree:        46788 kB
LowTotal:       903652 kB
LowFree:        866380 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              96 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10264 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 14:17:01 (client local time) WITH STATUS 10 IN 0.298954 SECONDS
stats: 8259 0 0.298954 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 -v17 -v18 -v19 -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

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/6246/stat): 6246 (pb2sat) R 6245 6246 4060 0 -1 0 17 0 1 0 0 0 0 0 18 0 1 0 20841056 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/6246/statm): 373 2 364 364 0 9 0
[pid=6246] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc11/normalized-fpga11_10_sat_pb.cnf.cr.opb
One traced child (pid=6246) exited with status: 10
All traced children have exited ! Game is over.

Child status: 10
Real time (s): 0.541609
CPU time (s): 0.298954
CPU user time (s): 0.26096
CPU system time (s): 0.037994
CPU usage (%): 55.1974
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	0